+/*
+ * Terminal emulator.
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#include <assert.h>
#include "putty.h"
-#include "tree234.h"
+#include "terminal.h"
+
+#define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
+#define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
+#define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
+#define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
+
+/* Product-order comparisons for rectangular block selection. */
+#define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
+#define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
+
+#define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
+#define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
#define VT52_PLUS
#define TM_PUTTY (0xFFFF)
+#define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
+#define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
+#define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
+#define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
+
#define compatibility(x) \
- if ( ((CL_##x)&compatibility_level) == 0 ) { \
- termstate=TOPLEVEL; \
+ if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
+ term->termstate=TOPLEVEL; \
break; \
}
#define compatibility2(x,y) \
- if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \
- termstate=TOPLEVEL; \
+ if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
+ term->termstate=TOPLEVEL; \
break; \
}
-#define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 )
+#define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
-static int compatibility_level = TM_PUTTY;
+char *EMPTY_WINDOW_TITLE = "";
-static tree234 *scrollback; /* lines scrolled off top of screen */
-static tree234 *screen; /* lines on primary screen */
-static tree234 *alt_screen; /* lines on alternate screen */
-static int disptop; /* distance scrolled back (0 or -ve) */
+const char sco2ansicolour[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
-static unsigned long *cpos; /* cursor position (convenience) */
+#define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
+const wchar_t sel_nl[] = SEL_NL;
-static unsigned long *disptext; /* buffer of text on real screen */
-static unsigned long *dispcurs; /* location of cursor on real screen */
-static unsigned long curstype; /* type of cursor on real screen */
+/*
+ * Fetch the character at a particular position in a line array,
+ * for purposes of `wordtype'. The reason this isn't just a simple
+ * array reference is that if the character we find is UCSWIDE,
+ * then we must look one space further to the left.
+ */
+#define UCSGET(a, x) \
+ ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
-#define VBELL_TIMEOUT (TICKSPERSEC/10) /* visual bell lasts 1/10 sec */
+/*
+ * Detect the various aliases of U+0020 SPACE.
+ */
+#define IS_SPACE_CHR(chr) \
+ ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
-struct beeptime {
- struct beeptime *next;
- unsigned long ticks;
-};
-static struct beeptime *beephead, *beeptail;
-int nbeeps;
-int beep_overloaded;
-long lastbeep;
+/*
+ * Spot magic CSETs.
+ */
+#define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
-#define TSIZE (sizeof(unsigned long))
-#define fix_cpos do { cpos = lineptr(curs.y) + curs.x; } while(0)
+/*
+ * Internal prototypes.
+ */
+static void resizeline(Terminal *, termline *, int);
+static termline *lineptr(Terminal *, int, int, int);
+static void unlineptr(termline *);
+static void do_paint(Terminal *, Context, int);
+static void erase_lots(Terminal *, int, int, int);
+static int find_last_nonempty_line(Terminal *, tree234 *);
+static void swap_screen(Terminal *, int, int, int);
+static void update_sbar(Terminal *);
+static void deselect(Terminal *);
+static void term_print_finish(Terminal *);
+static void scroll(Terminal *, int, int, int, int);
+#ifdef OPTIMISE_SCROLL
+static void scroll_display(Terminal *, int, int, int);
+#endif /* OPTIMISE_SCROLL */
+
+static termline *newline(Terminal *term, int cols, int bce)
+{
+ termline *line;
+ int j;
+
+ line = snew(termline);
+ line->chars = snewn(cols, termchar);
+ for (j = 0; j < cols; j++)
+ line->chars[j] = (bce ? term->erase_char : term->basic_erase_char);
+ line->cols = line->size = cols;
+ line->lattr = LATTR_NORM;
+ line->temporary = FALSE;
+ line->cc_free = 0;
-static unsigned long curr_attr, save_attr;
-static unsigned long erase_char = ERASE_CHAR;
+ return line;
+}
-typedef struct {
- int y, x;
-} pos;
-#define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
-#define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
-#define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
-#define posdiff(p1,p2) ( ((p1).y - (p2).y) * (cols+1) + (p1).x - (p2).x )
-#define incpos(p) ( (p).x == cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
-#define decpos(p) ( (p).x == 0 ? ((p).x = cols, (p).y--, 1) : ((p).x--, 0) )
+static void freeline(termline *line)
+{
+ if (line) {
+ sfree(line->chars);
+ sfree(line);
+ }
+}
-/* Product-order comparisons for rectangular block selection. */
-#define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
-#define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
+static void unlineptr(termline *line)
+{
+ if (line->temporary)
+ freeline(line);
+}
+
+#ifdef TERM_CC_DIAGS
+/*
+ * Diagnostic function: verify that a termline has a correct
+ * combining character structure.
+ *
+ * This is a performance-intensive check, so it's no longer enabled
+ * by default.
+ */
+static void cc_check(termline *line)
+{
+ unsigned char *flags;
+ int i, j;
+
+ assert(line->size >= line->cols);
+
+ flags = snewn(line->size, unsigned char);
+
+ for (i = 0; i < line->size; i++)
+ flags[i] = (i < line->cols);
+
+ for (i = 0; i < line->cols; i++) {
+ j = i;
+ while (line->chars[j].cc_next) {
+ j += line->chars[j].cc_next;
+ assert(j >= line->cols && j < line->size);
+ assert(!flags[j]);
+ flags[j] = TRUE;
+ }
+ }
+
+ j = line->cc_free;
+ if (j) {
+ while (1) {
+ assert(j >= line->cols && j < line->size);
+ assert(!flags[j]);
+ flags[j] = TRUE;
+ if (line->chars[j].cc_next)
+ j += line->chars[j].cc_next;
+ else
+ break;
+ }
+ }
+
+ j = 0;
+ for (i = 0; i < line->size; i++)
+ j += (flags[i] != 0);
-static bufchain inbuf; /* terminal input buffer */
-static pos curs; /* cursor */
-static pos savecurs; /* saved cursor position */
-static int marg_t, marg_b; /* scroll margins */
-static int dec_om; /* DEC origin mode flag */
-static int wrap, wrapnext; /* wrap flags */
-static int insert; /* insert-mode flag */
-static int cset; /* 0 or 1: which char set */
-static int save_cset, save_csattr; /* saved with cursor position */
-static int save_utf, save_wnext; /* saved with cursor position */
-static int rvideo; /* global reverse video flag */
-static unsigned long rvbell_startpoint;/* for ESC[?5hESC[?5l vbell */
-static int cursor_on; /* cursor enabled flag */
-static int reset_132; /* Flag ESC c resets to 80 cols */
-static int use_bce; /* Use Background coloured erase */
-static int blinker; /* When blinking is the cursor on ? */
-static int tblinker; /* When the blinking text is on */
-static int blink_is_real; /* Actually blink blinking text */
-static int term_echoing; /* Does terminal want local echo? */
-static int term_editing; /* Does terminal want local edit? */
-static int sco_acs, save_sco_acs; /* CSI 10,11,12m -> OEM charset */
-static int vt52_bold; /* Force bold on non-bold colours */
-static int utf_state; /* Is there a pending UTF-8 character */
-static int utf_char; /* and what is it so far. */
-static int utf_size; /* The size of the UTF character. */
-static int printing, only_printing; /* Are we doing ANSI printing? */
-static int print_state; /* state of print-end-sequence scan */
-static bufchain printer_buf; /* buffered data for printer */
-static printer_job *print_job;
-
-static int xterm_mouse; /* send mouse messages to app */
-
-static unsigned long cset_attr[2];
+ assert(j == line->size);
+
+ sfree(flags);
+}
+#endif
/*
- * Saved settings on the alternate screen.
+ * Add a combining character to a character cell.
*/
-static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset, alt_sco_acs, alt_utf;
-static int alt_t, alt_b;
-static int alt_which;
-
-#define ARGS_MAX 32 /* max # of esc sequence arguments */
-#define ARG_DEFAULT 0 /* if an arg isn't specified */
-#define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
-static int esc_args[ARGS_MAX];
-static int esc_nargs;
-static int esc_query;
-#define ANSI(x,y) ((x)+((y)<<8))
-#define ANSI_QUE(x) ANSI(x,TRUE)
-
-#define OSC_STR_MAX 2048
-static int osc_strlen;
-static char osc_string[OSC_STR_MAX + 1];
-static int osc_w;
-
-static char id_string[1024] = "\033[?6c";
-
-static unsigned char *tabs;
-
-static enum {
- TOPLEVEL,
- SEEN_ESC,
- SEEN_CSI,
- SEEN_OSC,
- SEEN_OSC_W,
-
- DO_CTRLS,
-
- SEEN_OSC_P,
- OSC_STRING, OSC_MAYBE_ST,
- VT52_ESC,
- VT52_Y1,
- VT52_Y2,
- VT52_FG,
- VT52_BG
-} termstate;
-
-static enum {
- NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED
-} selstate;
-static enum {
- LEXICOGRAPHIC, RECTANGULAR
-} seltype;
-static enum {
- SM_CHAR, SM_WORD, SM_LINE
-} selmode;
-static pos selstart, selend, selanchor;
-
-static short wordness[256] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, /* 01 */
- 0, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 1, 1, 1, 1, 1, 1, /* 23 */
- 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 1, 1, 1, 1, 2, /* 45 */
- 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 1, 1, 1, 1, 1, /* 67 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, /* 89 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, /* AB */
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1,
- 2, 2, 2, 2, 2, 2, 2, 2, /* CD */
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1,
- 2, 2, 2, 2, 2, 2, 2, 2, /* EF */
-};
+static void add_cc(termline *line, int col, unsigned long chr)
+{
+ int newcc;
-#define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
-static wchar_t sel_nl[] = SEL_NL;
-static wchar_t *paste_buffer = 0;
-static int paste_len, paste_pos, paste_hold;
+ assert(col >= 0 && col < line->cols);
+
+ /*
+ * Start by extending the cols array if the free list is empty.
+ */
+ if (!line->cc_free) {
+ int n = line->size;
+ line->size += 16 + (line->size - line->cols) / 2;
+ line->chars = sresize(line->chars, line->size, termchar);
+ line->cc_free = n;
+ while (n < line->size) {
+ if (n+1 < line->size)
+ line->chars[n].cc_next = 1;
+ else
+ line->chars[n].cc_next = 0;
+ n++;
+ }
+ }
+
+ /*
+ * Now walk the cc list of the cell in question.
+ */
+ while (line->chars[col].cc_next)
+ col += line->chars[col].cc_next;
+
+ /*
+ * `col' now points at the last cc currently in this cell; so
+ * we simply add another one.
+ */
+ newcc = line->cc_free;
+ if (line->chars[newcc].cc_next)
+ line->cc_free = newcc + line->chars[newcc].cc_next;
+ else
+ line->cc_free = 0;
+ line->chars[newcc].cc_next = 0;
+ line->chars[newcc].chr = chr;
+ line->chars[col].cc_next = newcc - col;
+
+#ifdef TERM_CC_DIAGS
+ cc_check(line);
+#endif
+}
/*
- * Internal prototypes.
+ * Clear the combining character list in a character cell.
+ */
+static void clear_cc(termline *line, int col)
+{
+ int oldfree, origcol = col;
+
+ assert(col >= 0 && col < line->cols);
+
+ if (!line->chars[col].cc_next)
+ return; /* nothing needs doing */
+
+ oldfree = line->cc_free;
+ line->cc_free = col + line->chars[col].cc_next;
+ while (line->chars[col].cc_next)
+ col += line->chars[col].cc_next;
+ if (oldfree)
+ line->chars[col].cc_next = oldfree - col;
+ else
+ line->chars[col].cc_next = 0;
+
+ line->chars[origcol].cc_next = 0;
+
+#ifdef TERM_CC_DIAGS
+ cc_check(line);
+#endif
+}
+
+/*
+ * Compare two character cells for equality. Special case required
+ * in do_paint() where we override what we expect the chr and attr
+ * fields to be.
+ */
+static int termchars_equal_override(termchar *a, termchar *b,
+ unsigned long bchr, unsigned long battr)
+{
+ /* FULL-TERMCHAR */
+ if (a->chr != bchr)
+ return FALSE;
+ if ((a->attr &~ DATTR_MASK) != (battr &~ DATTR_MASK))
+ return FALSE;
+ while (a->cc_next || b->cc_next) {
+ if (!a->cc_next || !b->cc_next)
+ return FALSE; /* one cc-list ends, other does not */
+ a += a->cc_next;
+ b += b->cc_next;
+ if (a->chr != b->chr)
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static int termchars_equal(termchar *a, termchar *b)
+{
+ return termchars_equal_override(a, b, b->chr, b->attr);
+}
+
+/*
+ * Copy a character cell. (Requires a pointer to the destination
+ * termline, so as to access its free list.)
+ */
+static void copy_termchar(termline *destline, int x, termchar *src)
+{
+ clear_cc(destline, x);
+
+ destline->chars[x] = *src; /* copy everything except cc-list */
+ destline->chars[x].cc_next = 0; /* and make sure this is zero */
+
+ while (src->cc_next) {
+ src += src->cc_next;
+ add_cc(destline, x, src->chr);
+ }
+
+#ifdef TERM_CC_DIAGS
+ cc_check(destline);
+#endif
+}
+
+/*
+ * Move a character cell within its termline.
*/
-static void do_paint(Context, int);
-static void erase_lots(int, int, int);
-static void swap_screen(int);
-static void update_sbar(void);
-static void deselect(void);
-static void term_print_finish(void);
+static void move_termchar(termline *line, termchar *dest, termchar *src)
+{
+ /* First clear the cc list from the original char, just in case. */
+ clear_cc(line, dest - line->chars);
+
+ /* Move the character cell and adjust its cc_next. */
+ *dest = *src; /* copy everything except cc-list */
+ if (src->cc_next)
+ dest->cc_next = src->cc_next - (dest-src);
+
+ /* Ensure the original cell doesn't have a cc list. */
+ src->cc_next = 0;
+
+#ifdef TERM_CC_DIAGS
+ cc_check(line);
+#endif
+}
+
+/*
+ * Compress and decompress a termline into an RLE-based format for
+ * storing in scrollback. (Since scrollback almost never needs to
+ * be modified and exists in huge quantities, this is a sensible
+ * tradeoff, particularly since it allows us to continue adding
+ * features to the main termchar structure without proportionally
+ * bloating the terminal emulator's memory footprint unless those
+ * features are in constant use.)
+ */
+struct buf {
+ unsigned char *data;
+ int len, size;
+};
+static void add(struct buf *b, unsigned char c)
+{
+ if (b->len >= b->size) {
+ b->size = (b->len * 3 / 2) + 512;
+ b->data = sresize(b->data, b->size, unsigned char);
+ }
+ b->data[b->len++] = c;
+}
+static int get(struct buf *b)
+{
+ return b->data[b->len++];
+}
+static void makerle(struct buf *b, termline *ldata,
+ void (*makeliteral)(struct buf *b, termchar *c,
+ unsigned long *state))
+{
+ int hdrpos, hdrsize, n, prevlen, prevpos, thislen, thispos, prev2;
+ termchar *c = ldata->chars;
+ unsigned long state = 0, oldstate;
+
+ n = ldata->cols;
+
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+
+ while (n-- > 0) {
+ thispos = b->len;
+ makeliteral(b, c++, &state);
+ thislen = b->len - thispos;
+ if (thislen == prevlen &&
+ !memcmp(b->data + prevpos, b->data + thispos, thislen)) {
+ /*
+ * This literal precisely matches the previous one.
+ * Turn it into a run if it's worthwhile.
+ *
+ * With one-byte literals, it costs us two bytes to
+ * encode a run, plus another byte to write the header
+ * to resume normal output; so a three-element run is
+ * neutral, and anything beyond that is unconditionally
+ * worthwhile. With two-byte literals or more, even a
+ * 2-run is a win.
+ */
+ if (thislen > 1 || prev2) {
+ int runpos, runlen;
+
+ /*
+ * It's worth encoding a run. Start at prevpos,
+ * unless hdrsize==0 in which case we can back up
+ * another one and start by overwriting hdrpos.
+ */
+
+ hdrsize--; /* remove the literal at prevpos */
+ if (prev2) {
+ assert(hdrsize > 0);
+ hdrsize--;
+ prevpos -= prevlen;/* and possibly another one */
+ }
+
+ if (hdrsize == 0) {
+ assert(prevpos == hdrpos + 1);
+ runpos = hdrpos;
+ b->len = prevpos+prevlen;
+ } else {
+ memmove(b->data + prevpos+1, b->data + prevpos, prevlen);
+ runpos = prevpos;
+ b->len = prevpos+prevlen+1;
+ /*
+ * Terminate the previous run of ordinary
+ * literals.
+ */
+ assert(hdrsize >= 1 && hdrsize <= 128);
+ b->data[hdrpos] = hdrsize - 1;
+ }
+
+ runlen = prev2 ? 3 : 2;
+
+ while (n > 0 && runlen < 129) {
+ int tmppos, tmplen;
+ tmppos = b->len;
+ oldstate = state;
+ makeliteral(b, c, &state);
+ tmplen = b->len - tmppos;
+ b->len = tmppos;
+ if (tmplen != thislen ||
+ memcmp(b->data + runpos+1, b->data + tmppos, tmplen)) {
+ state = oldstate;
+ break; /* run over */
+ }
+ n--, c++, runlen++;
+ }
+
+ assert(runlen >= 2 && runlen <= 129);
+ b->data[runpos] = runlen + 0x80 - 2;
+
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ /* And ensure this run doesn't interfere with the next. */
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+
+ continue;
+ } else {
+ /*
+ * Just flag that the previous two literals were
+ * identical, in case we find a third identical one
+ * we want to turn into a run.
+ */
+ prev2 = TRUE;
+ prevlen = thislen;
+ prevpos = thispos;
+ }
+ } else {
+ prev2 = FALSE;
+ prevlen = thislen;
+ prevpos = thispos;
+ }
+
+ /*
+ * This character isn't (yet) part of a run. Add it to
+ * hdrsize.
+ */
+ hdrsize++;
+ if (hdrsize == 128) {
+ b->data[hdrpos] = hdrsize - 1;
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+ }
+ }
+
+ /*
+ * Clean up.
+ */
+ if (hdrsize > 0) {
+ assert(hdrsize <= 128);
+ b->data[hdrpos] = hdrsize - 1;
+ } else {
+ b->len = hdrpos;
+ }
+}
+static void makeliteral_chr(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * My encoding for characters is UTF-8-like, in that it stores
+ * 7-bit ASCII in one byte and uses high-bit-set bytes as
+ * introducers to indicate a longer sequence. However, it's
+ * unlike UTF-8 in that it doesn't need to be able to
+ * resynchronise, and therefore I don't want to waste two bits
+ * per byte on having recognisable continuation characters.
+ * Also I don't want to rule out the possibility that I may one
+ * day use values 0x80000000-0xFFFFFFFF for interesting
+ * purposes, so unlike UTF-8 I need a full 32-bit range.
+ * Accordingly, here is my encoding:
+ *
+ * 00000000-0000007F: 0xxxxxxx (but see below)
+ * 00000080-00003FFF: 10xxxxxx xxxxxxxx
+ * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
+ * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ *
+ * (`Z' is like `x' but is always going to be zero since the
+ * values I'm encoding don't go above 2^32. In principle the
+ * five-byte form of the encoding could extend to 2^35, and
+ * there could be six-, seven-, eight- and nine-byte forms as
+ * well to allow up to 64-bit values to be encoded. But that's
+ * completely unnecessary for these purposes!)
+ *
+ * The encoding as written above would be very simple, except
+ * that 7-bit ASCII can occur in several different ways in the
+ * terminal data; sometimes it crops up in the D800 page
+ * (CSET_ASCII) but at other times it's in the 0000 page (real
+ * Unicode). Therefore, this encoding is actually _stateful_:
+ * the one-byte encoding of 00-7F actually indicates `reuse the
+ * upper three bytes of the last character', and to encode an
+ * absolute value of 00-7F you need to use the two-byte form
+ * instead.
+ */
+ if ((c->chr & ~0x7F) == *state) {
+ add(b, (unsigned char)(c->chr & 0x7F));
+ } else if (c->chr < 0x4000) {
+ add(b, (unsigned char)(((c->chr >> 8) & 0x3F) | 0x80));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else if (c->chr < 0x200000) {
+ add(b, (unsigned char)(((c->chr >> 16) & 0x1F) | 0xC0));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else if (c->chr < 0x10000000) {
+ add(b, (unsigned char)(((c->chr >> 24) & 0x0F) | 0xE0));
+ add(b, (unsigned char)((c->chr >> 16) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else {
+ add(b, 0xF0);
+ add(b, (unsigned char)((c->chr >> 24) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 16) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ }
+ *state = c->chr & ~0xFF;
+}
+static void makeliteral_attr(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * My encoding for attributes is 16-bit-granular and assumes
+ * that the top bit of the word is never required. I either
+ * store a two-byte value with the top bit clear (indicating
+ * just that value), or a four-byte value with the top bit set
+ * (indicating the same value with its top bit clear).
+ *
+ * However, first I permute the bits of the attribute value, so
+ * that the eight bits of colour (four in each of fg and bg)
+ * which are never non-zero unless xterm 256-colour mode is in
+ * use are placed higher up the word than everything else. This
+ * ensures that attribute values remain 16-bit _unless_ the
+ * user uses extended colour.
+ */
+ unsigned attr, colourbits;
+
+ attr = c->attr;
+
+ assert(ATTR_BGSHIFT > ATTR_FGSHIFT);
+
+ colourbits = (attr >> (ATTR_BGSHIFT + 4)) & 0xF;
+ colourbits <<= 4;
+ colourbits |= (attr >> (ATTR_FGSHIFT + 4)) & 0xF;
+
+ attr = (((attr >> (ATTR_BGSHIFT + 8)) << (ATTR_BGSHIFT + 4)) |
+ (attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
+ attr = (((attr >> (ATTR_FGSHIFT + 8)) << (ATTR_FGSHIFT + 4)) |
+ (attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
+
+ attr |= (colourbits << (32-9));
+
+ if (attr < 0x8000) {
+ add(b, (unsigned char)((attr >> 8) & 0xFF));
+ add(b, (unsigned char)(attr & 0xFF));
+ } else {
+ add(b, (unsigned char)(((attr >> 24) & 0x7F) | 0x80));
+ add(b, (unsigned char)((attr >> 16) & 0xFF));
+ add(b, (unsigned char)((attr >> 8) & 0xFF));
+ add(b, (unsigned char)(attr & 0xFF));
+ }
+}
+static void makeliteral_cc(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * For combining characters, I just encode a bunch of ordinary
+ * chars using makeliteral_chr, and terminate with a \0
+ * character (which I know won't come up as a combining char
+ * itself).
+ *
+ * I don't use the stateful encoding in makeliteral_chr.
+ */
+ unsigned long zstate;
+ termchar z;
+
+ while (c->cc_next) {
+ c += c->cc_next;
+
+ assert(c->chr != 0);
+
+ zstate = 0;
+ makeliteral_chr(b, c, &zstate);
+ }
+
+ z.chr = 0;
+ zstate = 0;
+ makeliteral_chr(b, &z, &zstate);
+}
+
+static termline *decompressline(unsigned char *data, int *bytes_used);
+
+static unsigned char *compressline(termline *ldata)
+{
+ struct buf buffer = { NULL, 0, 0 }, *b = &buffer;
+
+ /*
+ * First, store the column count, 7 bits at a time, least
+ * significant `digit' first, with the high bit set on all but
+ * the last.
+ */
+ {
+ int n = ldata->cols;
+ while (n >= 128) {
+ add(b, (unsigned char)((n & 0x7F) | 0x80));
+ n >>= 7;
+ }
+ add(b, (unsigned char)(n));
+ }
+
+ /*
+ * Next store the lattrs; same principle.
+ */
+ {
+ int n = ldata->lattr;
+ while (n >= 128) {
+ add(b, (unsigned char)((n & 0x7F) | 0x80));
+ n >>= 7;
+ }
+ add(b, (unsigned char)(n));
+ }
+
+ /*
+ * Now we store a sequence of separate run-length encoded
+ * fragments, each containing exactly as many symbols as there
+ * are columns in the ldata.
+ *
+ * All of these have a common basic format:
+ *
+ * - a byte 00-7F indicates that X+1 literals follow it
+ * - a byte 80-FF indicates that a single literal follows it
+ * and expects to be repeated (X-0x80)+2 times.
+ *
+ * The format of the `literals' varies between the fragments.
+ */
+ makerle(b, ldata, makeliteral_chr);
+ makerle(b, ldata, makeliteral_attr);
+ makerle(b, ldata, makeliteral_cc);
+
+ /*
+ * Diagnostics: ensure that the compressed data really does
+ * decompress to the right thing.
+ *
+ * This is a bit performance-heavy for production code.
+ */
+#ifdef TERM_CC_DIAGS
+#ifndef CHECK_SB_COMPRESSION
+ {
+ int dused;
+ termline *dcl;
+ int i;
+
+#ifdef DIAGNOSTIC_SB_COMPRESSION
+ for (i = 0; i < b->len; i++) {
+ printf(" %02x ", b->data[i]);
+ }
+ printf("\n");
+#endif
+
+ dcl = decompressline(b->data, &dused);
+ assert(b->len == dused);
+ assert(ldata->cols == dcl->cols);
+ assert(ldata->lattr == dcl->lattr);
+ for (i = 0; i < ldata->cols; i++)
+ assert(termchars_equal(&ldata->chars[i], &dcl->chars[i]));
+
+#ifdef DIAGNOSTIC_SB_COMPRESSION
+ printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
+ ldata->cols, 4 * ldata->cols, dused,
+ (double)dused / (4 * ldata->cols));
+#endif
+
+ freeline(dcl);
+ }
+#endif
+#endif /* TERM_CC_DIAGS */
+
+ /*
+ * Trim the allocated memory so we don't waste any, and return.
+ */
+ return sresize(b->data, b->len, unsigned char);
+}
+
+static void readrle(struct buf *b, termline *ldata,
+ void (*readliteral)(struct buf *b, termchar *c,
+ termline *ldata, unsigned long *state))
+{
+ int n = 0;
+ unsigned long state = 0;
+
+ while (n < ldata->cols) {
+ int hdr = get(b);
+
+ if (hdr >= 0x80) {
+ /* A run. */
+
+ int pos = b->len, count = hdr + 2 - 0x80;
+ while (count--) {
+ assert(n < ldata->cols);
+ b->len = pos;
+ readliteral(b, ldata->chars + n, ldata, &state);
+ n++;
+ }
+ } else {
+ /* Just a sequence of consecutive literals. */
+
+ int count = hdr + 1;
+ while (count--) {
+ assert(n < ldata->cols);
+ readliteral(b, ldata->chars + n, ldata, &state);
+ n++;
+ }
+ }
+ }
+
+ assert(n == ldata->cols);
+}
+static void readliteral_chr(struct buf *b, termchar *c, termline *ldata,
+ unsigned long *state)
+{
+ int byte;
+
+ /*
+ * 00000000-0000007F: 0xxxxxxx
+ * 00000080-00003FFF: 10xxxxxx xxxxxxxx
+ * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
+ * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ */
+
+ byte = get(b);
+ if (byte < 0x80) {
+ c->chr = byte | *state;
+ } else if (byte < 0xC0) {
+ c->chr = (byte &~ 0xC0) << 8;
+ c->chr |= get(b);
+ } else if (byte < 0xE0) {
+ c->chr = (byte &~ 0xE0) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ } else if (byte < 0xF0) {
+ c->chr = (byte &~ 0xF0) << 24;
+ c->chr |= get(b) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ } else {
+ assert(byte == 0xF0);
+ c->chr = get(b) << 24;
+ c->chr |= get(b) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ }
+ *state = c->chr & ~0xFF;
+}
+static void readliteral_attr(struct buf *b, termchar *c, termline *ldata,
+ unsigned long *state)
+{
+ unsigned val, attr, colourbits;
+
+ val = get(b) << 8;
+ val |= get(b);
+
+ if (val >= 0x8000) {
+ val &= ~0x8000;
+ val <<= 16;
+ val |= get(b) << 8;
+ val |= get(b);
+ }
+
+ colourbits = (val >> (32-9)) & 0xFF;
+ attr = (val & ((1<<(32-9))-1));
+
+ attr = (((attr >> (ATTR_FGSHIFT + 4)) << (ATTR_FGSHIFT + 8)) |
+ (attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
+ attr = (((attr >> (ATTR_BGSHIFT + 4)) << (ATTR_BGSHIFT + 8)) |
+ (attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
+
+ attr |= (colourbits >> 4) << (ATTR_BGSHIFT + 4);
+ attr |= (colourbits & 0xF) << (ATTR_FGSHIFT + 4);
+
+ c->attr = attr;
+}
+static void readliteral_cc(struct buf *b, termchar *c, termline *ldata,
+ unsigned long *state)
+{
+ termchar n;
+ unsigned long zstate;
+ int x = c - ldata->chars;
+
+ c->cc_next = 0;
+
+ while (1) {
+ zstate = 0;
+ readliteral_chr(b, &n, ldata, &zstate);
+ if (!n.chr)
+ break;
+ add_cc(ldata, x, n.chr);
+ }
+}
+
+static termline *decompressline(unsigned char *data, int *bytes_used)
+{
+ int ncols, byte, shift;
+ struct buf buffer, *b = &buffer;
+ termline *ldata;
+
+ b->data = data;
+ b->len = 0;
+
+ /*
+ * First read in the column count.
+ */
+ ncols = shift = 0;
+ do {
+ byte = get(b);
+ ncols |= (byte & 0x7F) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+
+ /*
+ * Now create the output termline.
+ */
+ ldata = snew(termline);
+ ldata->chars = snewn(ncols, termchar);
+ ldata->cols = ldata->size = ncols;
+ ldata->temporary = TRUE;
+ ldata->cc_free = 0;
+
+ /*
+ * We must set all the cc pointers in ldata->chars to 0 right
+ * now, so that cc diagnostics that verify the integrity of the
+ * whole line will make sense while we're in the middle of
+ * building it up.
+ */
+ {
+ int i;
+ for (i = 0; i < ldata->cols; i++)
+ ldata->chars[i].cc_next = 0;
+ }
+
+ /*
+ * Now read in the lattr.
+ */
+ ldata->lattr = shift = 0;
+ do {
+ byte = get(b);
+ ldata->lattr |= (byte & 0x7F) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+
+ /*
+ * Now we read in each of the RLE streams in turn.
+ */
+ readrle(b, ldata, readliteral_chr);
+ readrle(b, ldata, readliteral_attr);
+ readrle(b, ldata, readliteral_cc);
+
+ /* Return the number of bytes read, for diagnostic purposes. */
+ if (bytes_used)
+ *bytes_used = b->len;
+
+ return ldata;
+}
/*
* Resize a line to make it `cols' columns wide.
*/
-unsigned long *resizeline(unsigned long *line, int cols)
+static void resizeline(Terminal *term, termline *line, int cols)
{
- int i, oldlen;
- unsigned long lineattrs;
+ int i, oldcols;
+
+ if (line->cols != cols) {
+
+ oldcols = line->cols;
- if (line[0] != (unsigned long)cols) {
/*
* This line is the wrong length, which probably means it
* hasn't been accessed since a resize. Resize it now.
+ *
+ * First, go through all the characters that will be thrown
+ * out in the resize (if we're shrinking the line) and
+ * return their cc lists to the cc free list.
+ */
+ for (i = cols; i < oldcols; i++)
+ clear_cc(line, i);
+
+ /*
+ * If we're shrinking the line, we now bodily move the
+ * entire cc section from where it started to where it now
+ * needs to be. (We have to do this before the resize, so
+ * that the data we're copying is still there. However, if
+ * we're expanding, we have to wait until _after_ the
+ * resize so that the space we're copying into is there.)
+ */
+ if (cols < oldcols)
+ memmove(line->chars + cols, line->chars + oldcols,
+ (line->size - line->cols) * TSIZE);
+
+ /*
+ * Now do the actual resize, leaving the _same_ amount of
+ * cc space as there was to begin with.
+ */
+ line->size += cols - oldcols;
+ line->chars = sresize(line->chars, line->size, TTYPE);
+ line->cols = cols;
+
+ /*
+ * If we're expanding the line, _now_ we move the cc
+ * section.
*/
- oldlen = line[0];
- lineattrs = line[oldlen + 1];
- line = srealloc(line, TSIZE * (2 + cols));
- line[0] = cols;
- for (i = oldlen; i < cols; i++)
- line[i + 1] = ERASE_CHAR;
- line[cols + 1] = lineattrs & LATTR_MODE;
+ if (cols > oldcols)
+ memmove(line->chars + cols, line->chars + oldcols,
+ (line->size - line->cols) * TSIZE);
+
+ /*
+ * Go through what's left of the original line, and adjust
+ * the first cc_next pointer in each list. (All the
+ * subsequent ones are still valid because they are
+ * relative offsets within the cc block.) Also do the same
+ * to the head of the cc_free list.
+ */
+ for (i = 0; i < oldcols && i < cols; i++)
+ if (line->chars[i].cc_next)
+ line->chars[i].cc_next += cols - oldcols;
+ if (line->cc_free)
+ line->cc_free += cols - oldcols;
+
+ /*
+ * And finally fill in the new space with erase chars. (We
+ * don't have to worry about cc lists here, because we
+ * _know_ the erase char doesn't have one.)
+ */
+ for (i = oldcols; i < cols; i++)
+ line->chars[i] = term->basic_erase_char;
+
+#ifdef TERM_CC_DIAGS
+ cc_check(line);
+#endif
}
+}
- return line;
+/*
+ * Get the number of lines in the scrollback.
+ */
+static int sblines(Terminal *term)
+{
+ int sblines = count234(term->scrollback);
+ if (term->erase_to_scrollback &&
+ term->alt_which && term->alt_screen) {
+ sblines += term->alt_sblines;
+ }
+ return sblines;
}
/*
* whether the y coordinate is non-negative or negative
* (respectively).
*/
-unsigned long *lineptr(int y, int lineno)
+static termline *lineptr(Terminal *term, int y, int lineno, int screen)
{
- unsigned long *line, *newline;
+ termline *line;
tree234 *whichtree;
int treeindex;
if (y >= 0) {
- whichtree = screen;
+ whichtree = term->screen;
treeindex = y;
} else {
- whichtree = scrollback;
- treeindex = y + count234(scrollback);
+ int altlines = 0;
+
+ assert(!screen);
+
+ if (term->erase_to_scrollback &&
+ term->alt_which && term->alt_screen) {
+ altlines = term->alt_sblines;
+ }
+ if (y < -altlines) {
+ whichtree = term->scrollback;
+ treeindex = y + altlines + count234(term->scrollback);
+ } else {
+ whichtree = term->alt_screen;
+ treeindex = y + term->alt_sblines;
+ /* treeindex = y + count234(term->alt_screen); */
+ }
+ }
+ if (whichtree == term->scrollback) {
+ unsigned char *cline = index234(whichtree, treeindex);
+ line = decompressline(cline, NULL);
+ } else {
+ line = index234(whichtree, treeindex);
}
- line = index234(whichtree, treeindex);
/* We assume that we don't screw up and retrieve something out of range. */
+ if (line == NULL) {
+ fatalbox("line==NULL in terminal.c\n"
+ "lineno=%d y=%d w=%d h=%d\n"
+ "count(scrollback=%p)=%d\n"
+ "count(screen=%p)=%d\n"
+ "count(alt=%p)=%d alt_sblines=%d\n"
+ "whichtree=%p treeindex=%d\n\n"
+ "Please contact <putty@projects.tartarus.org> "
+ "and pass on the above information.",
+ lineno, y, term->cols, term->rows,
+ term->scrollback, count234(term->scrollback),
+ term->screen, count234(term->screen),
+ term->alt_screen, count234(term->alt_screen), term->alt_sblines,
+ whichtree, treeindex);
+ }
assert(line != NULL);
- newline = resizeline(line, cols);
- if (newline != line) {
- delpos234(whichtree, treeindex);
- addpos234(whichtree, newline, treeindex);
- line = newline;
+ resizeline(term, line, term->cols);
+ /* FIXME: should we sort the compressed scrollback out here? */
+
+ return line;
+}
+
+#define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
+#define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
+
+static void term_schedule_tblink(Terminal *term);
+static void term_schedule_cblink(Terminal *term);
+
+static void term_timer(void *ctx, unsigned long now)
+{
+ Terminal *term = (Terminal *)ctx;
+ int update = FALSE;
+
+ if (term->tblink_pending && now == term->next_tblink) {
+ term->tblinker = !term->tblinker;
+ term->tblink_pending = FALSE;
+ term_schedule_tblink(term);
+ update = TRUE;
+ }
+
+ if (term->cblink_pending && now == term->next_cblink) {
+ term->cblinker = !term->cblinker;
+ term->cblink_pending = FALSE;
+ term_schedule_cblink(term);
+ update = TRUE;
+ }
+
+ if (term->in_vbell && now == term->vbell_end) {
+ term->in_vbell = FALSE;
+ update = TRUE;
+ }
+
+ if (update ||
+ (term->window_update_pending && now == term->next_update))
+ term_update(term);
+}
+
+static void term_schedule_update(Terminal *term)
+{
+ if (!term->window_update_pending) {
+ term->window_update_pending = TRUE;
+ term->next_update = schedule_timer(UPDATE_DELAY, term_timer, term);
+ }
+}
+
+/*
+ * Call this whenever the terminal window state changes, to queue
+ * an update.
+ */
+static void seen_disp_event(Terminal *term)
+{
+ term->seen_disp_event = TRUE; /* for scrollback-reset-on-activity */
+ term_schedule_update(term);
+}
+
+/*
+ * Call when the terminal's blinking-text settings change, or when
+ * a text blink has just occurred.
+ */
+static void term_schedule_tblink(Terminal *term)
+{
+ if (term->blink_is_real) {
+ if (!term->tblink_pending)
+ term->next_tblink = schedule_timer(TBLINK_DELAY, term_timer, term);
+ term->tblink_pending = TRUE;
+ } else {
+ term->tblinker = 1; /* reset when not in use */
+ term->tblink_pending = FALSE;
+ }
+}
+
+/*
+ * Likewise with cursor blinks.
+ */
+static void term_schedule_cblink(Terminal *term)
+{
+ if (term->blink_cur && term->has_focus) {
+ if (!term->cblink_pending)
+ term->next_cblink = schedule_timer(CBLINK_DELAY, term_timer, term);
+ term->cblink_pending = TRUE;
+ } else {
+ term->cblinker = 1; /* reset when not in use */
+ term->cblink_pending = FALSE;
}
+}
+
+/*
+ * Call to reset cursor blinking on new output.
+ */
+static void term_reset_cblink(Terminal *term)
+{
+ seen_disp_event(term);
+ term->cblinker = 1;
+ term->cblink_pending = FALSE;
+ term_schedule_cblink(term);
+}
- return line + 1;
+/*
+ * Call to begin a visual bell.
+ */
+static void term_schedule_vbell(Terminal *term, int already_started,
+ long startpoint)
+{
+ long ticks_already_gone;
+
+ if (already_started)
+ ticks_already_gone = GETTICKCOUNT() - startpoint;
+ else
+ ticks_already_gone = 0;
+
+ if (ticks_already_gone < VBELL_DELAY) {
+ term->in_vbell = TRUE;
+ term->vbell_end = schedule_timer(VBELL_DELAY - ticks_already_gone,
+ term_timer, term);
+ } else {
+ term->in_vbell = FALSE;
+ }
}
-#define lineptr(x) lineptr(x,__LINE__)
/*
* Set up power-on settings for the terminal.
+ * If 'clear' is false, don't actually clear the primary screen, and
+ * position the cursor below the last non-blank line (scrolling if
+ * necessary).
*/
-static void power_on(void)
+static void power_on(Terminal *term, int clear)
{
- curs.x = curs.y = alt_x = alt_y = savecurs.x = savecurs.y = 0;
- alt_t = marg_t = 0;
- if (rows != -1)
- alt_b = marg_b = rows - 1;
+ term->alt_x = term->alt_y = 0;
+ term->savecurs.x = term->savecurs.y = 0;
+ term->alt_savecurs.x = term->alt_savecurs.y = 0;
+ term->alt_t = term->marg_t = 0;
+ if (term->rows != -1)
+ term->alt_b = term->marg_b = term->rows - 1;
else
- alt_b = marg_b = 0;
- if (cols != -1) {
+ term->alt_b = term->marg_b = 0;
+ if (term->cols != -1) {
int i;
- for (i = 0; i < cols; i++)
- tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
- }
- alt_om = dec_om = cfg.dec_om;
- alt_wnext = wrapnext = alt_ins = insert = FALSE;
- alt_wrap = wrap = cfg.wrap_mode;
- alt_cset = cset = 0;
- alt_utf = utf = 0;
- alt_sco_acs = sco_acs = 0;
- cset_attr[0] = cset_attr[1] = ATTR_ASCII;
- rvideo = 0;
- in_vbell = FALSE;
- cursor_on = 1;
- big_cursor = 0;
- save_attr = curr_attr = ATTR_DEFAULT;
- term_editing = term_echoing = FALSE;
- ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */
- app_cursor_keys = cfg.app_cursor;
- app_keypad_keys = cfg.app_keypad;
- use_bce = cfg.bce;
- blink_is_real = cfg.blinktext;
- erase_char = ERASE_CHAR;
- alt_which = 0;
- term_print_finish();
+ for (i = 0; i < term->cols; i++)
+ term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
+ }
+ term->alt_om = term->dec_om = conf_get_int(term->conf, CONF_dec_om);
+ term->alt_ins = term->insert = FALSE;
+ term->alt_wnext = term->wrapnext =
+ term->save_wnext = term->alt_save_wnext = FALSE;
+ term->alt_wrap = term->wrap = conf_get_int(term->conf, CONF_wrap_mode);
+ term->alt_cset = term->cset = term->save_cset = term->alt_save_cset = 0;
+ term->alt_utf = term->utf = term->save_utf = term->alt_save_utf = 0;
+ term->utf_state = 0;
+ term->alt_sco_acs = term->sco_acs =
+ term->save_sco_acs = term->alt_save_sco_acs = 0;
+ term->cset_attr[0] = term->cset_attr[1] =
+ term->save_csattr = term->alt_save_csattr = CSET_ASCII;
+ term->rvideo = 0;
+ term->in_vbell = FALSE;
+ term->cursor_on = 1;
+ term->big_cursor = 0;
+ term->default_attr = term->save_attr =
+ term->alt_save_attr = term->curr_attr = ATTR_DEFAULT;
+ term->term_editing = term->term_echoing = FALSE;
+ term->app_cursor_keys = conf_get_int(term->conf, CONF_app_cursor);
+ term->app_keypad_keys = conf_get_int(term->conf, CONF_app_keypad);
+ term->use_bce = conf_get_int(term->conf, CONF_bce);
+ term->blink_is_real = conf_get_int(term->conf, CONF_blinktext);
+ term->erase_char = term->basic_erase_char;
+ term->alt_which = 0;
+ term_print_finish(term);
+ term->xterm_mouse = 0;
+ term->xterm_extended_mouse = 0;
+ term->urxvt_extended_mouse = 0;
+ set_raw_mouse_mode(term->frontend, FALSE);
+ term->bracketed_paste = FALSE;
{
int i;
for (i = 0; i < 256; i++)
- wordness[i] = cfg.wordness[i];
+ term->wordness[i] = conf_get_int_int(term->conf, CONF_wordness, i);
}
- if (screen) {
- swap_screen(1);
- erase_lots(FALSE, TRUE, TRUE);
- swap_screen(0);
- erase_lots(FALSE, TRUE, TRUE);
+ if (term->screen) {
+ swap_screen(term, 1, FALSE, FALSE);
+ erase_lots(term, FALSE, TRUE, TRUE);
+ swap_screen(term, 0, FALSE, FALSE);
+ if (clear)
+ erase_lots(term, FALSE, TRUE, TRUE);
+ term->curs.y = find_last_nonempty_line(term, term->screen) + 1;
+ if (term->curs.y == term->rows) {
+ term->curs.y--;
+ scroll(term, 0, term->rows - 1, 1, TRUE);
+ }
+ } else {
+ term->curs.y = 0;
}
+ term->curs.x = 0;
+ term_schedule_tblink(term);
+ term_schedule_cblink(term);
}
/*
* Force a screen update.
*/
-void term_update(void)
+void term_update(Terminal *term)
{
Context ctx;
- ctx = get_ctx();
+
+ term->window_update_pending = FALSE;
+
+ ctx = get_ctx(term->frontend);
if (ctx) {
- int need_sbar_update = seen_disp_event;
- if ((seen_key_event && (cfg.scroll_on_key)) ||
- (seen_disp_event && (cfg.scroll_on_disp))) {
- disptop = 0; /* return to main screen */
- seen_disp_event = seen_key_event = 0;
+ int need_sbar_update = term->seen_disp_event;
+ if (term->seen_disp_event && term->scroll_on_disp) {
+ term->disptop = 0; /* return to main screen */
+ term->seen_disp_event = 0;
need_sbar_update = TRUE;
}
+
if (need_sbar_update)
- update_sbar();
- do_paint(ctx, TRUE);
- sys_cursor(curs.x, curs.y - disptop);
+ update_sbar(term);
+ do_paint(term, ctx, TRUE);
+ sys_cursor(term->frontend, term->curs.x, term->curs.y - term->disptop);
free_ctx(ctx);
}
}
/*
+ * Called from front end when a keypress occurs, to trigger
+ * anything magical that needs to happen in that situation.
+ */
+void term_seen_key_event(Terminal *term)
+{
+ /*
+ * On any keypress, clear the bell overload mechanism
+ * completely, on the grounds that large numbers of
+ * beeps coming from deliberate key action are likely
+ * to be intended (e.g. beeps from filename completion
+ * blocking repeatedly).
+ */
+ term->beep_overloaded = FALSE;
+ while (term->beephead) {
+ struct beeptime *tmp = term->beephead;
+ term->beephead = tmp->next;
+ sfree(tmp);
+ }
+ term->beeptail = NULL;
+ term->nbeeps = 0;
+
+ /*
+ * Reset the scrollback on keypress, if we're doing that.
+ */
+ if (term->scroll_on_key) {
+ term->disptop = 0; /* return to main screen */
+ seen_disp_event(term);
+ }
+}
+
+/*
* Same as power_on(), but an external function.
*/
-void term_pwron(void)
+void term_pwron(Terminal *term, int clear)
+{
+ power_on(term, clear);
+ if (term->ldisc) /* cause ldisc to notice changes */
+ ldisc_send(term->ldisc, NULL, 0, 0);
+ term->disptop = 0;
+ deselect(term);
+ term_update(term);
+}
+
+static void set_erase_char(Terminal *term)
+{
+ term->erase_char = term->basic_erase_char;
+ if (term->use_bce)
+ term->erase_char.attr = (term->curr_attr &
+ (ATTR_FGMASK | ATTR_BGMASK));
+}
+
+/*
+ * We copy a bunch of stuff out of the Conf structure into local
+ * fields in the Terminal structure, to avoid the repeated tree234
+ * lookups which would be involved in fetching them from the former
+ * every time.
+ */
+void term_copy_stuff_from_conf(Terminal *term)
{
- power_on();
- fix_cpos;
- disptop = 0;
- deselect();
- term_update();
+ term->ansi_colour = conf_get_int(term->conf, CONF_ansi_colour);
+ term->arabicshaping = conf_get_int(term->conf, CONF_arabicshaping);
+ term->beep = conf_get_int(term->conf, CONF_beep);
+ term->bellovl = conf_get_int(term->conf, CONF_bellovl);
+ term->bellovl_n = conf_get_int(term->conf, CONF_bellovl_n);
+ term->bellovl_s = conf_get_int(term->conf, CONF_bellovl_s);
+ term->bellovl_t = conf_get_int(term->conf, CONF_bellovl_t);
+ term->bidi = conf_get_int(term->conf, CONF_bidi);
+ term->bksp_is_delete = conf_get_int(term->conf, CONF_bksp_is_delete);
+ term->blink_cur = conf_get_int(term->conf, CONF_blink_cur);
+ term->blinktext = conf_get_int(term->conf, CONF_blinktext);
+ term->cjk_ambig_wide = conf_get_int(term->conf, CONF_cjk_ambig_wide);
+ term->conf_height = conf_get_int(term->conf, CONF_height);
+ term->conf_width = conf_get_int(term->conf, CONF_width);
+ term->crhaslf = conf_get_int(term->conf, CONF_crhaslf);
+ term->erase_to_scrollback = conf_get_int(term->conf, CONF_erase_to_scrollback);
+ term->funky_type = conf_get_int(term->conf, CONF_funky_type);
+ term->lfhascr = conf_get_int(term->conf, CONF_lfhascr);
+ term->logflush = conf_get_int(term->conf, CONF_logflush);
+ term->logtype = conf_get_int(term->conf, CONF_logtype);
+ term->mouse_override = conf_get_int(term->conf, CONF_mouse_override);
+ term->nethack_keypad = conf_get_int(term->conf, CONF_nethack_keypad);
+ term->no_alt_screen = conf_get_int(term->conf, CONF_no_alt_screen);
+ term->no_applic_c = conf_get_int(term->conf, CONF_no_applic_c);
+ term->no_applic_k = conf_get_int(term->conf, CONF_no_applic_k);
+ term->no_dbackspace = conf_get_int(term->conf, CONF_no_dbackspace);
+ term->no_mouse_rep = conf_get_int(term->conf, CONF_no_mouse_rep);
+ term->no_remote_charset = conf_get_int(term->conf, CONF_no_remote_charset);
+ term->no_remote_resize = conf_get_int(term->conf, CONF_no_remote_resize);
+ term->no_remote_wintitle = conf_get_int(term->conf, CONF_no_remote_wintitle);
+ term->rawcnp = conf_get_int(term->conf, CONF_rawcnp);
+ term->rect_select = conf_get_int(term->conf, CONF_rect_select);
+ term->remote_qtitle_action = conf_get_int(term->conf, CONF_remote_qtitle_action);
+ term->rxvt_homeend = conf_get_int(term->conf, CONF_rxvt_homeend);
+ term->scroll_on_disp = conf_get_int(term->conf, CONF_scroll_on_disp);
+ term->scroll_on_key = conf_get_int(term->conf, CONF_scroll_on_key);
+ term->xterm_256_colour = conf_get_int(term->conf, CONF_xterm_256_colour);
+
+ /*
+ * Parse the control-character escapes in the configured
+ * answerback string.
+ */
+ {
+ char *answerback = conf_get_str(term->conf, CONF_answerback);
+ int maxlen = strlen(answerback);
+
+ term->answerback = snewn(maxlen, char);
+ term->answerbacklen = 0;
+
+ while (*answerback) {
+ char *n;
+ char c = ctrlparse(answerback, &n);
+ if (n) {
+ term->answerback[term->answerbacklen++] = c;
+ answerback = n;
+ } else {
+ term->answerback[term->answerbacklen++] = *answerback++;
+ }
+ }
+ }
}
/*
* user has disabled mouse reporting, and abandon a print job if
* the user has disabled printing.
*/
-void term_reconfig(void)
+void term_reconfig(Terminal *term, Conf *conf)
{
- if (cfg.no_alt_screen)
- swap_screen(0);
- if (cfg.no_mouse_rep) {
- xterm_mouse = 0;
- set_raw_mouse_mode(0);
+ /*
+ * Before adopting the new config, check all those terminal
+ * settings which control power-on defaults; and if they've
+ * changed, we will modify the current state as well as the
+ * default one. The full list is: Auto wrap mode, DEC Origin
+ * Mode, BCE, blinking text, character classes.
+ */
+ int reset_wrap, reset_decom, reset_bce, reset_tblink, reset_charclass;
+ int i;
+
+ reset_wrap = (conf_get_int(term->conf, CONF_wrap_mode) !=
+ conf_get_int(conf, CONF_wrap_mode));
+ reset_decom = (conf_get_int(term->conf, CONF_dec_om) !=
+ conf_get_int(conf, CONF_dec_om));
+ reset_bce = (conf_get_int(term->conf, CONF_bce) !=
+ conf_get_int(conf, CONF_bce));
+ reset_tblink = (conf_get_int(term->conf, CONF_blinktext) !=
+ conf_get_int(conf, CONF_blinktext));
+ reset_charclass = 0;
+ for (i = 0; i < 256; i++)
+ if (conf_get_int_int(term->conf, CONF_wordness, i) !=
+ conf_get_int_int(conf, CONF_wordness, i))
+ reset_charclass = 1;
+
+ /*
+ * If the bidi or shaping settings have changed, flush the bidi
+ * cache completely.
+ */
+ if (conf_get_int(term->conf, CONF_arabicshaping) !=
+ conf_get_int(conf, CONF_arabicshaping) ||
+ conf_get_int(term->conf, CONF_bidi) !=
+ conf_get_int(conf, CONF_bidi)) {
+ for (i = 0; i < term->bidi_cache_size; i++) {
+ sfree(term->pre_bidi_cache[i].chars);
+ sfree(term->post_bidi_cache[i].chars);
+ term->pre_bidi_cache[i].width = -1;
+ term->pre_bidi_cache[i].chars = NULL;
+ term->post_bidi_cache[i].width = -1;
+ term->post_bidi_cache[i].chars = NULL;
+ }
+ }
+
+ conf_free(term->conf);
+ term->conf = conf_copy(conf);
+
+ if (reset_wrap)
+ term->alt_wrap = term->wrap = conf_get_int(term->conf, CONF_wrap_mode);
+ if (reset_decom)
+ term->alt_om = term->dec_om = conf_get_int(term->conf, CONF_dec_om);
+ if (reset_bce) {
+ term->use_bce = conf_get_int(term->conf, CONF_bce);
+ set_erase_char(term);
+ }
+ if (reset_tblink) {
+ term->blink_is_real = conf_get_int(term->conf, CONF_blinktext);
+ }
+ if (reset_charclass)
+ for (i = 0; i < 256; i++)
+ term->wordness[i] = conf_get_int_int(term->conf, CONF_wordness, i);
+
+ if (conf_get_int(term->conf, CONF_no_alt_screen))
+ swap_screen(term, 0, FALSE, FALSE);
+ if (conf_get_int(term->conf, CONF_no_mouse_rep)) {
+ term->xterm_mouse = 0;
+ set_raw_mouse_mode(term->frontend, 0);
}
- if (cfg.no_remote_charset) {
- cset_attr[0] = cset_attr[1] = ATTR_ASCII;
- sco_acs = alt_sco_acs = 0;
- utf = 0;
+ if (conf_get_int(term->conf, CONF_no_remote_charset)) {
+ term->cset_attr[0] = term->cset_attr[1] = CSET_ASCII;
+ term->sco_acs = term->alt_sco_acs = 0;
+ term->utf = 0;
}
- if (!*cfg.printer) {
- term_print_finish();
+ if (!conf_get_str(term->conf, CONF_printer)) {
+ term_print_finish(term);
}
+ term_schedule_tblink(term);
+ term_schedule_cblink(term);
+ term_copy_stuff_from_conf(term);
}
/*
* Clear the scrollback.
*/
-void term_clrsb(void)
+void term_clrsb(Terminal *term)
{
- unsigned long *line;
- disptop = 0;
- while ((line = delpos234(scrollback, 0)) != NULL) {
- sfree(line);
+ unsigned char *line;
+ term->disptop = 0;
+ while ((line = delpos234(term->scrollback, 0)) != NULL) {
+ sfree(line); /* this is compressed data, not a termline */
}
- update_sbar();
+ term->tempsblines = 0;
+ term->alt_sblines = 0;
+ update_sbar(term);
}
/*
* Initialise the terminal.
*/
-void term_init(void)
+Terminal *term_init(Conf *myconf, struct unicode_data *ucsdata,
+ void *frontend)
+{
+ Terminal *term;
+
+ /*
+ * Allocate a new Terminal structure and initialise the fields
+ * that need it.
+ */
+ term = snew(Terminal);
+ term->frontend = frontend;
+ term->ucsdata = ucsdata;
+ term->conf = conf_copy(myconf);
+ term->logctx = NULL;
+ term->compatibility_level = TM_PUTTY;
+ strcpy(term->id_string, "\033[?6c");
+ term->cblink_pending = term->tblink_pending = FALSE;
+ term->paste_buffer = NULL;
+ term->paste_len = 0;
+ term->last_paste = 0;
+ bufchain_init(&term->inbuf);
+ bufchain_init(&term->printer_buf);
+ term->printing = term->only_printing = FALSE;
+ term->print_job = NULL;
+ term->vt52_mode = FALSE;
+ term->cr_lf_return = FALSE;
+ term->seen_disp_event = FALSE;
+ term->mouse_is_down = FALSE;
+ term->reset_132 = FALSE;
+ term->cblinker = term->tblinker = 0;
+ term->has_focus = 1;
+ term->repeat_off = FALSE;
+ term->termstate = TOPLEVEL;
+ term->selstate = NO_SELECTION;
+ term->curstype = 0;
+
+ term_copy_stuff_from_conf(term);
+
+ term->screen = term->alt_screen = term->scrollback = NULL;
+ term->tempsblines = 0;
+ term->alt_sblines = 0;
+ term->disptop = 0;
+ term->disptext = NULL;
+ term->dispcursx = term->dispcursy = -1;
+ term->tabs = NULL;
+ deselect(term);
+ term->rows = term->cols = -1;
+ power_on(term, TRUE);
+ term->beephead = term->beeptail = NULL;
+#ifdef OPTIMISE_SCROLL
+ term->scrollhead = term->scrolltail = NULL;
+#endif /* OPTIMISE_SCROLL */
+ term->nbeeps = 0;
+ term->lastbeep = FALSE;
+ term->beep_overloaded = FALSE;
+ term->attr_mask = 0xffffffff;
+ term->resize_fn = NULL;
+ term->resize_ctx = NULL;
+ term->in_term_out = FALSE;
+ term->ltemp = NULL;
+ term->ltemp_size = 0;
+ term->wcFrom = NULL;
+ term->wcTo = NULL;
+ term->wcFromTo_size = 0;
+
+ term->window_update_pending = FALSE;
+
+ term->bidi_cache_size = 0;
+ term->pre_bidi_cache = term->post_bidi_cache = NULL;
+
+ /* FULL-TERMCHAR */
+ term->basic_erase_char.chr = CSET_ASCII | ' ';
+ term->basic_erase_char.attr = ATTR_DEFAULT;
+ term->basic_erase_char.cc_next = 0;
+ term->erase_char = term->basic_erase_char;
+
+ return term;
+}
+
+void term_free(Terminal *term)
{
- screen = alt_screen = scrollback = NULL;
- disptop = 0;
- disptext = dispcurs = NULL;
- tabs = NULL;
- deselect();
- rows = cols = -1;
- power_on();
- beephead = beeptail = NULL;
- nbeeps = 0;
- lastbeep = FALSE;
- beep_overloaded = FALSE;
+ termline *line;
+ struct beeptime *beep;
+ int i;
+
+ while ((line = delpos234(term->scrollback, 0)) != NULL)
+ sfree(line); /* compressed data, not a termline */
+ freetree234(term->scrollback);
+ while ((line = delpos234(term->screen, 0)) != NULL)
+ freeline(line);
+ freetree234(term->screen);
+ while ((line = delpos234(term->alt_screen, 0)) != NULL)
+ freeline(line);
+ freetree234(term->alt_screen);
+ if (term->disptext) {
+ for (i = 0; i < term->rows; i++)
+ freeline(term->disptext[i]);
+ }
+ sfree(term->disptext);
+ while (term->beephead) {
+ beep = term->beephead;
+ term->beephead = beep->next;
+ sfree(beep);
+ }
+ bufchain_clear(&term->inbuf);
+ if(term->print_job)
+ printer_finish_job(term->print_job);
+ bufchain_clear(&term->printer_buf);
+ sfree(term->paste_buffer);
+ sfree(term->ltemp);
+ sfree(term->wcFrom);
+ sfree(term->wcTo);
+
+ for (i = 0; i < term->bidi_cache_size; i++) {
+ sfree(term->pre_bidi_cache[i].chars);
+ sfree(term->post_bidi_cache[i].chars);
+ sfree(term->post_bidi_cache[i].forward);
+ sfree(term->post_bidi_cache[i].backward);
+ }
+ sfree(term->pre_bidi_cache);
+ sfree(term->post_bidi_cache);
+
+ sfree(term->tabs);
+
+ expire_timer_context(term);
+
+ conf_free(term->conf);
+
+ sfree(term);
}
/*
* Set up the terminal for a given size.
*/
-void term_size(int newrows, int newcols, int newsavelines)
+void term_size(Terminal *term, int newrows, int newcols, int newsavelines)
{
tree234 *newalt;
- unsigned long *newdisp, *line;
- int i, j;
+ termline **newdisp, *line;
+ int i, j, oldrows = term->rows;
int sblen;
- int save_alt_which = alt_which;
+ int save_alt_which = term->alt_which;
- if (newrows == rows && newcols == cols && newsavelines == savelines)
+ if (newrows == term->rows && newcols == term->cols &&
+ newsavelines == term->savelines)
return; /* nothing to do */
- deselect();
- swap_screen(0);
+ /* Behave sensibly if we're given zero (or negative) rows/cols */
- alt_t = marg_t = 0;
- alt_b = marg_b = newrows - 1;
+ if (newrows < 1) newrows = 1;
+ if (newcols < 1) newcols = 1;
- if (rows == -1) {
- scrollback = newtree234(NULL);
- screen = newtree234(NULL);
- rows = 0;
+ deselect(term);
+ swap_screen(term, 0, FALSE, FALSE);
+
+ term->alt_t = term->marg_t = 0;
+ term->alt_b = term->marg_b = newrows - 1;
+
+ if (term->rows == -1) {
+ term->scrollback = newtree234(NULL);
+ term->screen = newtree234(NULL);
+ term->tempsblines = 0;
+ term->rows = 0;
}
/*
* will take care of resizing each individual line if
* necessary. So:
*
- * - If the new screen and the old screen differ in length, we
- * must shunt some lines in from the scrollback or out to
- * the scrollback.
- *
- * - If doing that fails to provide us with enough material to
- * fill the new screen (i.e. the number of rows needed in
- * the new screen exceeds the total number in the previous
- * screen+scrollback), we must invent some blank lines to
- * cover the gap.
+ * - If the new screen is longer, we shunt lines in from temporary
+ * scrollback if possible, otherwise we add new blank lines at
+ * the bottom.
+ *
+ * - If the new screen is shorter, we remove any blank lines at
+ * the bottom if possible, otherwise shunt lines above the cursor
+ * to scrollback if possible, otherwise delete lines below the
+ * cursor.
*
* - Then, if the new scrollback length is less than the
* amount of scrollback we actually have, we must throw some
* away.
*/
- sblen = count234(scrollback);
+ sblen = count234(term->scrollback);
/* Do this loop to expand the screen if newrows > rows */
- for (i = rows; i < newrows; i++) {
- if (sblen > 0) {
- line = delpos234(scrollback, --sblen);
+ assert(term->rows == count234(term->screen));
+ while (term->rows < newrows) {
+ if (term->tempsblines > 0) {
+ unsigned char *cline;
+ /* Insert a line from the scrollback at the top of the screen. */
+ assert(sblen >= term->tempsblines);
+ cline = delpos234(term->scrollback, --sblen);
+ line = decompressline(cline, NULL);
+ sfree(cline);
+ line->temporary = FALSE; /* reconstituted line is now real */
+ term->tempsblines -= 1;
+ addpos234(term->screen, line, 0);
+ term->curs.y += 1;
+ term->savecurs.y += 1;
+ term->alt_y += 1;
+ term->alt_savecurs.y += 1;
} else {
- line = smalloc(TSIZE * (newcols + 2));
- line[0] = newcols;
- for (j = 0; j <= newcols; j++)
- line[j + 1] = ERASE_CHAR;
+ /* Add a new blank line at the bottom of the screen. */
+ line = newline(term, newcols, FALSE);
+ addpos234(term->screen, line, count234(term->screen));
}
- addpos234(screen, line, 0);
+ term->rows += 1;
}
/* Do this loop to shrink the screen if newrows < rows */
- for (i = newrows; i < rows; i++) {
- line = delpos234(screen, 0);
- addpos234(scrollback, line, sblen++);
+ while (term->rows > newrows) {
+ if (term->curs.y < term->rows - 1) {
+ /* delete bottom row, unless it contains the cursor */
+ line = delpos234(term->screen, term->rows - 1);
+ freeline(line);
+ } else {
+ /* push top row to scrollback */
+ line = delpos234(term->screen, 0);
+ addpos234(term->scrollback, compressline(line), sblen++);
+ freeline(line);
+ term->tempsblines += 1;
+ term->curs.y -= 1;
+ term->savecurs.y -= 1;
+ term->alt_y -= 1;
+ term->alt_savecurs.y -= 1;
+ }
+ term->rows -= 1;
}
- assert(count234(screen) == newrows);
+ assert(term->rows == newrows);
+ assert(count234(term->screen) == newrows);
+
+ /* Delete any excess lines from the scrollback. */
while (sblen > newsavelines) {
- line = delpos234(scrollback, 0);
+ line = delpos234(term->scrollback, 0);
sfree(line);
sblen--;
}
- assert(count234(scrollback) <= newsavelines);
- disptop = 0;
-
- newdisp = smalloc(newrows * (newcols + 1) * TSIZE);
- for (i = 0; i < newrows * (newcols + 1); i++)
- newdisp[i] = ATTR_INVALID;
- sfree(disptext);
- disptext = newdisp;
- dispcurs = NULL;
+ if (sblen < term->tempsblines)
+ term->tempsblines = sblen;
+ assert(count234(term->scrollback) <= newsavelines);
+ assert(count234(term->scrollback) >= term->tempsblines);
+ term->disptop = 0;
+
+ /* Make a new displayed text buffer. */
+ newdisp = snewn(newrows, termline *);
+ for (i = 0; i < newrows; i++) {
+ newdisp[i] = newline(term, newcols, FALSE);
+ for (j = 0; j < newcols; j++)
+ newdisp[i]->chars[j].attr = ATTR_INVALID;
+ }
+ if (term->disptext) {
+ for (i = 0; i < oldrows; i++)
+ freeline(term->disptext[i]);
+ }
+ sfree(term->disptext);
+ term->disptext = newdisp;
+ term->dispcursx = term->dispcursy = -1;
+ /* Make a new alternate screen. */
newalt = newtree234(NULL);
for (i = 0; i < newrows; i++) {
- line = smalloc(TSIZE * (newcols + 2));
- line[0] = newcols;
- for (j = 0; j <= newcols; j++)
- line[j + 1] = erase_char;
+ line = newline(term, newcols, TRUE);
addpos234(newalt, line, i);
}
- if (alt_screen) {
- while (NULL != (line = delpos234(alt_screen, 0)))
- sfree(line);
- freetree234(alt_screen);
+ if (term->alt_screen) {
+ while (NULL != (line = delpos234(term->alt_screen, 0)))
+ freeline(line);
+ freetree234(term->alt_screen);
}
- alt_screen = newalt;
+ term->alt_screen = newalt;
+ term->alt_sblines = 0;
- tabs = srealloc(tabs, newcols * sizeof(*tabs));
+ term->tabs = sresize(term->tabs, newcols, unsigned char);
{
int i;
- for (i = (cols > 0 ? cols : 0); i < newcols; i++)
- tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
+ for (i = (term->cols > 0 ? term->cols : 0); i < newcols; i++)
+ term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
}
- if (rows > 0)
- curs.y += newrows - rows;
- if (curs.y < 0)
- curs.y = 0;
- if (curs.y >= newrows)
- curs.y = newrows - 1;
- if (curs.x >= newcols)
- curs.x = newcols - 1;
- alt_x = alt_y = 0;
- wrapnext = alt_wnext = FALSE;
-
- rows = newrows;
- cols = newcols;
- savelines = newsavelines;
- fix_cpos;
+ /* Check that the cursor positions are still valid. */
+ if (term->savecurs.y < 0)
+ term->savecurs.y = 0;
+ if (term->savecurs.y >= newrows)
+ term->savecurs.y = newrows - 1;
+ if (term->savecurs.x >= newcols)
+ term->savecurs.x = newcols - 1;
+ if (term->alt_savecurs.y < 0)
+ term->alt_savecurs.y = 0;
+ if (term->alt_savecurs.y >= newrows)
+ term->alt_savecurs.y = newrows - 1;
+ if (term->alt_savecurs.x >= newcols)
+ term->alt_savecurs.x = newcols - 1;
+ if (term->curs.y < 0)
+ term->curs.y = 0;
+ if (term->curs.y >= newrows)
+ term->curs.y = newrows - 1;
+ if (term->curs.x >= newcols)
+ term->curs.x = newcols - 1;
+ if (term->alt_y < 0)
+ term->alt_y = 0;
+ if (term->alt_y >= newrows)
+ term->alt_y = newrows - 1;
+ if (term->alt_x >= newcols)
+ term->alt_x = newcols - 1;
+ term->alt_x = term->alt_y = 0;
+ term->wrapnext = term->alt_wnext = FALSE;
+
+ term->rows = newrows;
+ term->cols = newcols;
+ term->savelines = newsavelines;
+
+ swap_screen(term, save_alt_which, FALSE, FALSE);
+
+ update_sbar(term);
+ term_update(term);
+ if (term->resize_fn)
+ term->resize_fn(term->resize_ctx, term->cols, term->rows);
+}
- swap_screen(save_alt_which);
+/*
+ * Hand a function and context pointer to the terminal which it can
+ * use to notify a back end of resizes.
+ */
+void term_provide_resize_fn(Terminal *term,
+ void (*resize_fn)(void *, int, int),
+ void *resize_ctx)
+{
+ term->resize_fn = resize_fn;
+ term->resize_ctx = resize_ctx;
+ if (resize_fn && term->cols > 0 && term->rows > 0)
+ resize_fn(resize_ctx, term->cols, term->rows);
+}
- update_sbar();
- term_update();
- back->size();
+/* Find the bottom line on the screen that has any content.
+ * If only the top line has content, returns 0.
+ * If no lines have content, return -1.
+ */
+static int find_last_nonempty_line(Terminal * term, tree234 * screen)
+{
+ int i;
+ for (i = count234(screen) - 1; i >= 0; i--) {
+ termline *line = index234(screen, i);
+ int j;
+ for (j = 0; j < line->cols; j++)
+ if (!termchars_equal(&line->chars[j], &term->erase_char))
+ break;
+ if (j != line->cols) break;
+ }
+ return i;
}
/*
- * Swap screens.
+ * Swap screens. If `reset' is TRUE and we have been asked to
+ * switch to the alternate screen, we must bring most of its
+ * configuration from the main screen and erase the contents of the
+ * alternate screen completely. (This is even true if we're already
+ * on it! Blame xterm.)
*/
-static void swap_screen(int which)
+static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos)
{
int t;
+ pos tp;
tree234 *ttr;
- if (which == alt_which)
- return;
+ if (!which)
+ reset = FALSE; /* do no weird resetting if which==0 */
+
+ if (which != term->alt_which) {
+ term->alt_which = which;
+
+ ttr = term->alt_screen;
+ term->alt_screen = term->screen;
+ term->screen = ttr;
+ term->alt_sblines = find_last_nonempty_line(term, term->alt_screen) + 1;
+ t = term->curs.x;
+ if (!reset && !keep_cur_pos)
+ term->curs.x = term->alt_x;
+ term->alt_x = t;
+ t = term->curs.y;
+ if (!reset && !keep_cur_pos)
+ term->curs.y = term->alt_y;
+ term->alt_y = t;
+ t = term->marg_t;
+ if (!reset) term->marg_t = term->alt_t;
+ term->alt_t = t;
+ t = term->marg_b;
+ if (!reset) term->marg_b = term->alt_b;
+ term->alt_b = t;
+ t = term->dec_om;
+ if (!reset) term->dec_om = term->alt_om;
+ term->alt_om = t;
+ t = term->wrap;
+ if (!reset) term->wrap = term->alt_wrap;
+ term->alt_wrap = t;
+ t = term->wrapnext;
+ if (!reset) term->wrapnext = term->alt_wnext;
+ term->alt_wnext = t;
+ t = term->insert;
+ if (!reset) term->insert = term->alt_ins;
+ term->alt_ins = t;
+ t = term->cset;
+ if (!reset) term->cset = term->alt_cset;
+ term->alt_cset = t;
+ t = term->utf;
+ if (!reset) term->utf = term->alt_utf;
+ term->alt_utf = t;
+ t = term->sco_acs;
+ if (!reset) term->sco_acs = term->alt_sco_acs;
+ term->alt_sco_acs = t;
+
+ tp = term->savecurs;
+ if (!reset && !keep_cur_pos)
+ term->savecurs = term->alt_savecurs;
+ term->alt_savecurs = tp;
+ t = term->save_cset;
+ if (!reset && !keep_cur_pos)
+ term->save_cset = term->alt_save_cset;
+ term->alt_save_cset = t;
+ t = term->save_csattr;
+ if (!reset && !keep_cur_pos)
+ term->save_csattr = term->alt_save_csattr;
+ term->alt_save_csattr = t;
+ t = term->save_attr;
+ if (!reset && !keep_cur_pos)
+ term->save_attr = term->alt_save_attr;
+ term->alt_save_attr = t;
+ t = term->save_utf;
+ if (!reset && !keep_cur_pos)
+ term->save_utf = term->alt_save_utf;
+ term->alt_save_utf = t;
+ t = term->save_wnext;
+ if (!reset && !keep_cur_pos)
+ term->save_wnext = term->alt_save_wnext;
+ term->alt_save_wnext = t;
+ t = term->save_sco_acs;
+ if (!reset && !keep_cur_pos)
+ term->save_sco_acs = term->alt_save_sco_acs;
+ term->alt_save_sco_acs = t;
+ }
- alt_which = which;
-
- ttr = alt_screen;
- alt_screen = screen;
- screen = ttr;
- t = curs.x;
- curs.x = alt_x;
- alt_x = t;
- t = curs.y;
- curs.y = alt_y;
- alt_y = t;
- t = marg_t;
- marg_t = alt_t;
- alt_t = t;
- t = marg_b;
- marg_b = alt_b;
- alt_b = t;
- t = dec_om;
- dec_om = alt_om;
- alt_om = t;
- t = wrap;
- wrap = alt_wrap;
- alt_wrap = t;
- t = wrapnext;
- wrapnext = alt_wnext;
- alt_wnext = t;
- t = insert;
- insert = alt_ins;
- alt_ins = t;
- t = cset;
- cset = alt_cset;
- alt_cset = t;
- t = utf;
- utf = alt_utf;
- alt_utf = t;
- t = sco_acs;
- sco_acs = alt_sco_acs;
- alt_sco_acs = t;
-
- fix_cpos;
+ if (reset && term->screen) {
+ /*
+ * Yes, this _is_ supposed to honour background-colour-erase.
+ */
+ erase_lots(term, FALSE, TRUE, TRUE);
+ }
}
/*
* Update the scroll bar.
*/
-static void update_sbar(void)
+static void update_sbar(Terminal *term)
{
- int nscroll;
-
- nscroll = count234(scrollback);
-
- set_sbar(nscroll + rows, nscroll + disptop, rows);
+ int nscroll = sblines(term);
+ set_sbar(term->frontend, nscroll + term->rows,
+ nscroll + term->disptop, term->rows);
}
/*
* Check whether the region bounded by the two pointers intersects
* the scroll region, and de-select the on-screen selection if so.
*/
-static void check_selection(pos from, pos to)
+static void check_selection(Terminal *term, pos from, pos to)
{
- if (poslt(from, selend) && poslt(selstart, to))
- deselect();
+ if (poslt(from, term->selend) && poslt(term->selstart, to))
+ deselect(term);
}
/*
* Scroll the screen. (`lines' is +ve for scrolling forward, -ve
* for backward.) `sb' is TRUE if the scrolling is permitted to
* affect the scrollback buffer.
- *
- * NB this function invalidates all pointers into lines of the
- * screen data structures. In particular, you MUST call fix_cpos
- * after calling scroll() and before doing anything else that
- * uses the cpos shortcut pointer.
*/
-static void scroll(int topline, int botline, int lines, int sb)
+static void scroll(Terminal *term, int topline, int botline, int lines, int sb)
{
- unsigned long *line, *line2;
- int i, seltop;
+ termline *line;
+ int i, seltop, scrollwinsize;
+#ifdef OPTIMISE_SCROLL
+ int olddisptop, shift;
+#endif /* OPTIMISE_SCROLL */
- if (topline != 0 || alt_which != 0)
+ if (topline != 0 || term->alt_which != 0)
sb = FALSE;
+#ifdef OPTIMISE_SCROLL
+ olddisptop = term->disptop;
+ shift = lines;
+#endif /* OPTIMISE_SCROLL */
+
+ scrollwinsize = botline - topline + 1;
+
if (lines < 0) {
- while (lines < 0) {
- line = delpos234(screen, botline);
- line = resizeline(line, cols);
- for (i = 0; i < cols; i++)
- line[i + 1] = erase_char;
- line[cols + 1] = 0;
- addpos234(screen, line, topline);
-
- if (selstart.y >= topline && selstart.y <= botline) {
- selstart.y++;
- if (selstart.y > botline) {
- selstart.y = botline;
- selstart.x = 0;
+ lines = -lines;
+ if (lines > scrollwinsize)
+ lines = scrollwinsize;
+ while (lines-- > 0) {
+ line = delpos234(term->screen, botline);
+ resizeline(term, line, term->cols);
+ for (i = 0; i < term->cols; i++)
+ copy_termchar(line, i, &term->erase_char);
+ line->lattr = LATTR_NORM;
+ addpos234(term->screen, line, topline);
+
+ if (term->selstart.y >= topline && term->selstart.y <= botline) {
+ term->selstart.y++;
+ if (term->selstart.y > botline) {
+ term->selstart.y = botline + 1;
+ term->selstart.x = 0;
}
}
- if (selend.y >= topline && selend.y <= botline) {
- selend.y++;
- if (selend.y > botline) {
- selend.y = botline;
- selend.x = 0;
+ if (term->selend.y >= topline && term->selend.y <= botline) {
+ term->selend.y++;
+ if (term->selend.y > botline) {
+ term->selend.y = botline + 1;
+ term->selend.x = 0;
}
}
-
- lines++;
}
} else {
- while (lines > 0) {
- line = delpos234(screen, topline);
- if (sb && savelines > 0) {
- int sblen = count234(scrollback);
+ if (lines > scrollwinsize)
+ lines = scrollwinsize;
+ while (lines-- > 0) {
+ line = delpos234(term->screen, topline);
+#ifdef TERM_CC_DIAGS
+ cc_check(line);
+#endif
+ if (sb && term->savelines > 0) {
+ int sblen = count234(term->scrollback);
/*
* We must add this line to the scrollback. We'll
- * remove a line from the top of the scrollback to
- * replace it, or allocate a new one if the
- * scrollback isn't full.
+ * remove a line from the top of the scrollback if
+ * the scrollback is full.
*/
- if (sblen == savelines) {
- sblen--, line2 = delpos234(scrollback, 0);
- } else {
- line2 = smalloc(TSIZE * (cols + 2));
- line2[0] = cols;
- }
- addpos234(scrollback, line, sblen);
- line = line2;
+ if (sblen == term->savelines) {
+ unsigned char *cline;
+
+ sblen--;
+ cline = delpos234(term->scrollback, 0);
+ sfree(cline);
+ } else
+ term->tempsblines += 1;
+
+ addpos234(term->scrollback, compressline(line), sblen);
+
+ /* now `line' itself can be reused as the bottom line */
/*
* If the user is currently looking at part of the
* Thanks to Jan Holmen Holsten for the idea and
* initial implementation.
*/
- if (disptop > -savelines && disptop < 0)
- disptop--;
+ if (term->disptop > -term->savelines && term->disptop < 0)
+ term->disptop--;
}
- line = resizeline(line, cols);
- for (i = 0; i < cols; i++)
- line[i + 1] = erase_char;
- line[cols + 1] = 0;
- addpos234(screen, line, botline);
+ resizeline(term, line, term->cols);
+ for (i = 0; i < term->cols; i++)
+ copy_termchar(line, i, &term->erase_char);
+ line->lattr = LATTR_NORM;
+ addpos234(term->screen, line, botline);
/*
* If the selection endpoints move into the scrollback,
* selection), and also selanchor (for one being
* selected as we speak).
*/
- seltop = sb ? -savelines : topline;
-
- if (selstart.y >= seltop && selstart.y <= botline) {
- selstart.y--;
- if (selstart.y < seltop) {
- selstart.y = seltop;
- selstart.x = 0;
+ seltop = sb ? -term->savelines : topline;
+
+ if (term->selstate != NO_SELECTION) {
+ if (term->selstart.y >= seltop &&
+ term->selstart.y <= botline) {
+ term->selstart.y--;
+ if (term->selstart.y < seltop) {
+ term->selstart.y = seltop;
+ term->selstart.x = 0;
+ }
}
- }
- if (selend.y >= seltop && selend.y <= botline) {
- selend.y--;
- if (selend.y < seltop) {
- selend.y = seltop;
- selend.x = 0;
+ if (term->selend.y >= seltop && term->selend.y <= botline) {
+ term->selend.y--;
+ if (term->selend.y < seltop) {
+ term->selend.y = seltop;
+ term->selend.x = 0;
+ }
}
- }
- if (selanchor.y >= seltop && selanchor.y <= botline) {
- selanchor.y--;
- if (selanchor.y < seltop) {
- selanchor.y = seltop;
- selanchor.x = 0;
+ if (term->selanchor.y >= seltop &&
+ term->selanchor.y <= botline) {
+ term->selanchor.y--;
+ if (term->selanchor.y < seltop) {
+ term->selanchor.y = seltop;
+ term->selanchor.x = 0;
+ }
}
}
-
- lines--;
}
}
+#ifdef OPTIMISE_SCROLL
+ shift += term->disptop - olddisptop;
+ if (shift < term->rows && shift > -term->rows && shift != 0)
+ scroll_display(term, topline, botline, shift);
+#endif /* OPTIMISE_SCROLL */
+}
+
+#ifdef OPTIMISE_SCROLL
+/*
+ * Add a scroll of a region on the screen into the pending scroll list.
+ * `lines' is +ve for scrolling forward, -ve for backward.
+ *
+ * If the scroll is on the same area as the last scroll in the list,
+ * merge them.
+ */
+static void save_scroll(Terminal *term, int topline, int botline, int lines)
+{
+ struct scrollregion *newscroll;
+ if (term->scrolltail &&
+ term->scrolltail->topline == topline &&
+ term->scrolltail->botline == botline) {
+ term->scrolltail->lines += lines;
+ } else {
+ newscroll = snew(struct scrollregion);
+ newscroll->topline = topline;
+ newscroll->botline = botline;
+ newscroll->lines = lines;
+ newscroll->next = NULL;
+
+ if (!term->scrollhead)
+ term->scrollhead = newscroll;
+ else
+ term->scrolltail->next = newscroll;
+ term->scrolltail = newscroll;
+ }
+}
+
+/*
+ * Scroll the physical display, and our conception of it in disptext.
+ */
+static void scroll_display(Terminal *term, int topline, int botline, int lines)
+{
+ int distance, nlines, i, j;
+
+ distance = lines > 0 ? lines : -lines;
+ nlines = botline - topline + 1 - distance;
+ if (lines > 0) {
+ for (i = 0; i < nlines; i++)
+ for (j = 0; j < term->cols; j++)
+ copy_termchar(term->disptext[i], j,
+ term->disptext[i+distance]->chars+j);
+ if (term->dispcursy >= 0 &&
+ term->dispcursy >= topline + distance &&
+ term->dispcursy < topline + distance + nlines)
+ term->dispcursy -= distance;
+ for (i = 0; i < distance; i++)
+ for (j = 0; j < term->cols; j++)
+ term->disptext[nlines+i]->chars[j].attr |= ATTR_INVALID;
+ } else {
+ for (i = nlines; i-- ;)
+ for (j = 0; j < term->cols; j++)
+ copy_termchar(term->disptext[i+distance], j,
+ term->disptext[i]->chars+j);
+ if (term->dispcursy >= 0 &&
+ term->dispcursy >= topline &&
+ term->dispcursy < topline + nlines)
+ term->dispcursy += distance;
+ for (i = 0; i < distance; i++)
+ for (j = 0; j < term->cols; j++)
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
+ }
+ save_scroll(term, topline, botline, lines);
}
+#endif /* OPTIMISE_SCROLL */
/*
* Move the cursor to a given position, clipping at boundaries. We
* not to, 1 to disallow _passing_ the margins, and 2 to disallow
* even _being_ outside the margins.
*/
-static void move(int x, int y, int marg_clip)
+static void move(Terminal *term, int x, int y, int marg_clip)
{
if (x < 0)
x = 0;
- if (x >= cols)
- x = cols - 1;
+ if (x >= term->cols)
+ x = term->cols - 1;
if (marg_clip) {
- if ((curs.y >= marg_t || marg_clip == 2) && y < marg_t)
- y = marg_t;
- if ((curs.y <= marg_b || marg_clip == 2) && y > marg_b)
- y = marg_b;
+ if ((term->curs.y >= term->marg_t || marg_clip == 2) &&
+ y < term->marg_t)
+ y = term->marg_t;
+ if ((term->curs.y <= term->marg_b || marg_clip == 2) &&
+ y > term->marg_b)
+ y = term->marg_b;
}
if (y < 0)
y = 0;
- if (y >= rows)
- y = rows - 1;
- curs.x = x;
- curs.y = y;
- fix_cpos;
- wrapnext = FALSE;
+ if (y >= term->rows)
+ y = term->rows - 1;
+ term->curs.x = x;
+ term->curs.y = y;
+ term->wrapnext = FALSE;
}
/*
* Save or restore the cursor and SGR mode.
*/
-static void save_cursor(int save)
+static void save_cursor(Terminal *term, int save)
{
if (save) {
- savecurs = curs;
- save_attr = curr_attr;
- save_cset = cset;
- save_utf = utf;
- save_wnext = wrapnext;
- save_csattr = cset_attr[cset];
- save_sco_acs = sco_acs;
+ term->savecurs = term->curs;
+ term->save_attr = term->curr_attr;
+ term->save_cset = term->cset;
+ term->save_utf = term->utf;
+ term->save_wnext = term->wrapnext;
+ term->save_csattr = term->cset_attr[term->cset];
+ term->save_sco_acs = term->sco_acs;
} else {
- curs = savecurs;
+ term->curs = term->savecurs;
/* Make sure the window hasn't shrunk since the save */
- if (curs.x >= cols)
- curs.x = cols - 1;
- if (curs.y >= rows)
- curs.y = rows - 1;
-
- curr_attr = save_attr;
- cset = save_cset;
- utf = save_utf;
- wrapnext = save_wnext;
+ if (term->curs.x >= term->cols)
+ term->curs.x = term->cols - 1;
+ if (term->curs.y >= term->rows)
+ term->curs.y = term->rows - 1;
+
+ term->curr_attr = term->save_attr;
+ term->cset = term->save_cset;
+ term->utf = term->save_utf;
+ term->wrapnext = term->save_wnext;
/*
* wrapnext might reset to False if the x position is no
* longer at the rightmost edge.
*/
- if (wrapnext && curs.x < cols-1)
- wrapnext = FALSE;
- cset_attr[cset] = save_csattr;
- sco_acs = save_sco_acs;
- fix_cpos;
- if (use_bce)
- erase_char = (' ' | ATTR_ASCII |
- (curr_attr & (ATTR_FGMASK | ATTR_BGMASK)));
+ if (term->wrapnext && term->curs.x < term->cols-1)
+ term->wrapnext = FALSE;
+ term->cset_attr[term->cset] = term->save_csattr;
+ term->sco_acs = term->save_sco_acs;
+ set_erase_char(term);
+ }
+}
+
+/*
+ * This function is called before doing _anything_ which affects
+ * only part of a line of text. It is used to mark the boundary
+ * between two character positions, and it indicates that some sort
+ * of effect is going to happen on only one side of that boundary.
+ *
+ * The effect of this function is to check whether a CJK
+ * double-width character is straddling the boundary, and to remove
+ * it and replace it with two spaces if so. (Of course, one or
+ * other of those spaces is then likely to be replaced with
+ * something else again, as a result of whatever happens next.)
+ *
+ * Also, if the boundary is at the right-hand _edge_ of the screen,
+ * it implies something deliberate is being done to the rightmost
+ * column position; hence we must clear LATTR_WRAPPED2.
+ *
+ * The input to the function is the coordinates of the _second_
+ * character of the pair.
+ */
+static void check_boundary(Terminal *term, int x, int y)
+{
+ termline *ldata;
+
+ /* Validate input coordinates, just in case. */
+ if (x == 0 || x > term->cols)
+ return;
+
+ ldata = scrlineptr(y);
+ if (x == term->cols) {
+ ldata->lattr &= ~LATTR_WRAPPED2;
+ } else {
+ if (ldata->chars[x].chr == UCSWIDE) {
+ clear_cc(ldata, x-1);
+ clear_cc(ldata, x);
+ ldata->chars[x-1].chr = ' ' | CSET_ASCII;
+ ldata->chars[x] = ldata->chars[x-1];
+ }
}
}
* Erase a large portion of the screen: the whole screen, or the
* whole line, or parts thereof.
*/
-static void erase_lots(int line_only, int from_begin, int to_end)
+static void erase_lots(Terminal *term,
+ int line_only, int from_begin, int to_end)
{
pos start, end;
int erase_lattr;
- unsigned long *ldata;
+ int erasing_lines_from_top = 0;
if (line_only) {
- start.y = curs.y;
+ start.y = term->curs.y;
start.x = 0;
- end.y = curs.y + 1;
+ end.y = term->curs.y + 1;
end.x = 0;
erase_lattr = FALSE;
} else {
start.y = 0;
start.x = 0;
- end.y = rows;
+ end.y = term->rows;
end.x = 0;
erase_lattr = TRUE;
}
if (!from_begin) {
- start = curs;
+ start = term->curs;
}
if (!to_end) {
- end = curs;
+ end = term->curs;
incpos(end);
}
- check_selection(start, end);
+ if (!from_begin || !to_end)
+ check_boundary(term, term->curs.x, term->curs.y);
+ check_selection(term, start, end);
/* Clear screen also forces a full window redraw, just in case. */
- if (start.y == 0 && start.x == 0 && end.y == rows)
- term_invalidate();
-
- ldata = lineptr(start.y);
- while (poslt(start, end)) {
- if (start.x == cols && !erase_lattr)
- ldata[start.x] &= ~LATTR_WRAPPED;
- else
- ldata[start.x] = erase_char;
- if (incpos(start) && start.y < rows)
- ldata = lineptr(start.y);
+ if (start.y == 0 && start.x == 0 && end.y == term->rows)
+ term_invalidate(term);
+
+ /* Lines scrolled away shouldn't be brought back on if the terminal
+ * resizes. */
+ if (start.y == 0 && start.x == 0 && end.x == 0 && erase_lattr)
+ erasing_lines_from_top = 1;
+
+ if (term->erase_to_scrollback && erasing_lines_from_top) {
+ /* If it's a whole number of lines, starting at the top, and
+ * we're fully erasing them, erase by scrolling and keep the
+ * lines in the scrollback. */
+ int scrolllines = end.y;
+ if (end.y == term->rows) {
+ /* Shrink until we find a non-empty row.*/
+ scrolllines = find_last_nonempty_line(term, term->screen) + 1;
+ }
+ if (scrolllines > 0)
+ scroll(term, 0, scrolllines - 1, scrolllines, TRUE);
+ } else {
+ termline *ldata = scrlineptr(start.y);
+ while (poslt(start, end)) {
+ if (start.x == term->cols) {
+ if (!erase_lattr)
+ ldata->lattr &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
+ else
+ ldata->lattr = LATTR_NORM;
+ } else {
+ copy_termchar(ldata, start.x, &term->erase_char);
+ }
+ if (incpos(start) && start.y < term->rows) {
+ ldata = scrlineptr(start.y);
+ }
+ }
}
+
+ /* After an erase of lines from the top of the screen, we shouldn't
+ * bring the lines back again if the terminal enlarges (since the user or
+ * application has explictly thrown them away). */
+ if (erasing_lines_from_top && !(term->alt_which))
+ term->tempsblines = 0;
}
/*
* Insert or delete characters within the current line. n is +ve if
* insertion is desired, and -ve for deletion.
*/
-static void insch(int n)
+static void insch(Terminal *term, int n)
{
int dir = (n < 0 ? -1 : +1);
- int m;
+ int m, j;
pos cursplus;
- unsigned long *ldata;
+ termline *ldata;
n = (n < 0 ? -n : n);
- if (n > cols - curs.x)
- n = cols - curs.x;
- m = cols - curs.x - n;
- cursplus.y = curs.y;
- cursplus.x = curs.x + n;
- check_selection(curs, cursplus);
- ldata = lineptr(curs.y);
+ if (n > term->cols - term->curs.x)
+ n = term->cols - term->curs.x;
+ m = term->cols - term->curs.x - n;
+ cursplus.y = term->curs.y;
+ cursplus.x = term->curs.x + n;
+ check_selection(term, term->curs, cursplus);
+ check_boundary(term, term->curs.x, term->curs.y);
+ if (dir < 0)
+ check_boundary(term, term->curs.x + n, term->curs.y);
+ ldata = scrlineptr(term->curs.y);
if (dir < 0) {
- memmove(ldata + curs.x, ldata + curs.x + n, m * TSIZE);
+ for (j = 0; j < m; j++)
+ move_termchar(ldata,
+ ldata->chars + term->curs.x + j,
+ ldata->chars + term->curs.x + j + n);
while (n--)
- ldata[curs.x + m++] = erase_char;
+ copy_termchar(ldata, term->curs.x + m++, &term->erase_char);
} else {
- memmove(ldata + curs.x + n, ldata + curs.x, m * TSIZE);
+ for (j = m; j-- ;)
+ move_termchar(ldata,
+ ldata->chars + term->curs.x + j + n,
+ ldata->chars + term->curs.x + j);
while (n--)
- ldata[curs.x + n] = erase_char;
+ copy_termchar(ldata, term->curs.x + n, &term->erase_char);
}
}
* Toggle terminal mode `mode' to state `state'. (`query' indicates
* whether the mode is a DEC private one or a normal one.)
*/
-static void toggle_mode(int mode, int query, int state)
+static void toggle_mode(Terminal *term, int mode, int query, int state)
{
- unsigned long ticks;
-
if (query)
switch (mode) {
- case 1: /* application cursor keys */
- app_cursor_keys = state;
+ case 1: /* DECCKM: application cursor keys */
+ term->app_cursor_keys = state;
break;
- case 2: /* VT52 mode */
- vt52_mode = !state;
- if (vt52_mode) {
- blink_is_real = FALSE;
- vt52_bold = FALSE;
+ case 2: /* DECANM: VT52 mode */
+ term->vt52_mode = !state;
+ if (term->vt52_mode) {
+ term->blink_is_real = FALSE;
+ term->vt52_bold = FALSE;
} else {
- blink_is_real = cfg.blinktext;
+ term->blink_is_real = term->blinktext;
}
+ term_schedule_tblink(term);
break;
- case 3: /* 80/132 columns */
- deselect();
- if (!cfg.no_remote_resize)
- request_resize(state ? 132 : 80, rows);
- reset_132 = state;
+ case 3: /* DECCOLM: 80/132 columns */
+ deselect(term);
+ if (!term->no_remote_resize)
+ request_resize(term->frontend, state ? 132 : 80, term->rows);
+ term->reset_132 = state;
+ term->alt_t = term->marg_t = 0;
+ term->alt_b = term->marg_b = term->rows - 1;
+ move(term, 0, 0, 0);
+ erase_lots(term, FALSE, TRUE, TRUE);
break;
- case 5: /* reverse video */
+ case 5: /* DECSCNM: reverse video */
/*
* Toggle reverse video. If we receive an OFF within the
* visual bell timeout period after an ON, we trigger an
* effective visual bell, so that ESC[?5hESC[?5l will
* always be an actually _visible_ visual bell.
*/
- ticks = GETTICKCOUNT();
- /* turn off a previous vbell to avoid inconsistencies */
- if (ticks - vbell_startpoint >= VBELL_TIMEOUT)
- in_vbell = FALSE;
- if (rvideo && !state && /* we're turning it off... */
- (ticks - rvbell_startpoint) < VBELL_TIMEOUT) { /* ...soon */
- /* If there's no vbell timeout already, or this one lasts
- * longer, replace vbell_timeout with ours. */
- if (!in_vbell ||
- (rvbell_startpoint - vbell_startpoint < VBELL_TIMEOUT))
- vbell_startpoint = rvbell_startpoint;
- in_vbell = TRUE; /* we may clear rvideo but we set in_vbell */
- } else if (!rvideo && state) {
+ if (term->rvideo && !state) {
+ /* This is an OFF, so set up a vbell */
+ term_schedule_vbell(term, TRUE, term->rvbell_startpoint);
+ } else if (!term->rvideo && state) {
/* This is an ON, so we notice the time and save it. */
- rvbell_startpoint = ticks;
+ term->rvbell_startpoint = GETTICKCOUNT();
}
- rvideo = state;
- seen_disp_event = TRUE;
- if (state)
- term_update();
+ term->rvideo = state;
+ seen_disp_event(term);
break;
- case 6: /* DEC origin mode */
- dec_om = state;
+ case 6: /* DECOM: DEC origin mode */
+ term->dec_om = state;
break;
- case 7: /* auto wrap */
- wrap = state;
+ case 7: /* DECAWM: auto wrap */
+ term->wrap = state;
break;
- case 8: /* auto key repeat */
- repeat_off = !state;
+ case 8: /* DECARM: auto key repeat */
+ term->repeat_off = !state;
break;
- case 10: /* set local edit mode */
- term_editing = state;
- ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */
+ case 10: /* DECEDM: set local edit mode */
+ term->term_editing = state;
+ if (term->ldisc) /* cause ldisc to notice changes */
+ ldisc_send(term->ldisc, NULL, 0, 0);
break;
- case 25: /* enable/disable cursor */
+ case 25: /* DECTCEM: enable/disable cursor */
compatibility2(OTHER, VT220);
- cursor_on = state;
- seen_disp_event = TRUE;
+ term->cursor_on = state;
+ seen_disp_event(term);
break;
case 47: /* alternate screen */
compatibility(OTHER);
- deselect();
- swap_screen(cfg.no_alt_screen ? 0 : state);
- disptop = 0;
+ deselect(term);
+ swap_screen(term, term->no_alt_screen ? 0 : state, FALSE, FALSE);
+ term->disptop = 0;
+ break;
+ case 1000: /* xterm mouse 1 (normal) */
+ term->xterm_mouse = state ? 1 : 0;
+ set_raw_mouse_mode(term->frontend, state);
+ break;
+ case 1002: /* xterm mouse 2 (inc. button drags) */
+ term->xterm_mouse = state ? 2 : 0;
+ set_raw_mouse_mode(term->frontend, state);
+ break;
+ case 1006: /* xterm extended mouse */
+ term->xterm_extended_mouse = state ? 1 : 0;
+ break;
+ case 1015: /* urxvt extended mouse */
+ term->urxvt_extended_mouse = state ? 1 : 0;
+ break;
+ case 1047: /* alternate screen */
+ compatibility(OTHER);
+ deselect(term);
+ swap_screen(term, term->no_alt_screen ? 0 : state, TRUE, TRUE);
+ term->disptop = 0;
+ break;
+ case 1048: /* save/restore cursor */
+ if (!term->no_alt_screen)
+ save_cursor(term, state);
+ if (!state) seen_disp_event(term);
break;
- case 1000: /* xterm mouse 1 */
- xterm_mouse = state ? 1 : 0;
- set_raw_mouse_mode(state);
+ case 1049: /* cursor & alternate screen */
+ if (state && !term->no_alt_screen)
+ save_cursor(term, state);
+ if (!state) seen_disp_event(term);
+ compatibility(OTHER);
+ deselect(term);
+ swap_screen(term, term->no_alt_screen ? 0 : state, TRUE, FALSE);
+ if (!state && !term->no_alt_screen)
+ save_cursor(term, state);
+ term->disptop = 0;
break;
- case 1002: /* xterm mouse 2 */
- xterm_mouse = state ? 2 : 0;
- set_raw_mouse_mode(state);
+ case 2004: /* xterm bracketed paste */
+ term->bracketed_paste = state ? TRUE : FALSE;
break;
} else
switch (mode) {
- case 4: /* set insert mode */
+ case 4: /* IRM: set insert mode */
compatibility(VT102);
- insert = state;
+ term->insert = state;
break;
- case 12: /* set echo mode */
- term_echoing = !state;
- ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */
+ case 12: /* SRM: set echo mode */
+ term->term_echoing = !state;
+ if (term->ldisc) /* cause ldisc to notice changes */
+ ldisc_send(term->ldisc, NULL, 0, 0);
break;
- case 20: /* Return sends ... */
- cr_lf_return = state;
+ case 20: /* LNM: Return sends ... */
+ term->cr_lf_return = state;
break;
- case 34: /* Make cursor BIG */
+ case 34: /* WYULCURM: Make cursor BIG */
compatibility2(OTHER, VT220);
- big_cursor = !state;
+ term->big_cursor = !state;
}
}
/*
* Process an OSC sequence: set window title or icon name.
*/
-static void do_osc(void)
+static void do_osc(Terminal *term)
{
- if (osc_w) {
- while (osc_strlen--)
- wordness[(unsigned char) osc_string[osc_strlen]] = esc_args[0];
+ if (term->osc_w) {
+ while (term->osc_strlen--)
+ term->wordness[(unsigned char)
+ term->osc_string[term->osc_strlen]] = term->esc_args[0];
} else {
- osc_string[osc_strlen] = '\0';
- switch (esc_args[0]) {
+ term->osc_string[term->osc_strlen] = '\0';
+ switch (term->esc_args[0]) {
case 0:
case 1:
- if (!cfg.no_remote_wintitle)
- set_icon(osc_string);
- if (esc_args[0] == 1)
+ if (!term->no_remote_wintitle)
+ set_icon(term->frontend, term->osc_string);
+ if (term->esc_args[0] == 1)
break;
/* fall through: parameter 0 means set both */
case 2:
case 21:
- if (!cfg.no_remote_wintitle)
- set_title(osc_string);
+ if (!term->no_remote_wintitle)
+ set_title(term->frontend, term->osc_string);
break;
}
}
/*
* ANSI printing routines.
*/
-static void term_print_setup(void)
+static void term_print_setup(Terminal *term, char *printer)
{
- bufchain_clear(&printer_buf);
- print_job = printer_start_job(cfg.printer);
+ bufchain_clear(&term->printer_buf);
+ term->print_job = printer_start_job(printer);
}
-static void term_print_flush(void)
+static void term_print_flush(Terminal *term)
{
void *data;
int len;
int size;
- while ((size = bufchain_size(&printer_buf)) > 5) {
- bufchain_prefix(&printer_buf, &data, &len);
+ while ((size = bufchain_size(&term->printer_buf)) > 5) {
+ bufchain_prefix(&term->printer_buf, &data, &len);
if (len > size-5)
len = size-5;
- printer_job_data(print_job, data, len);
- bufchain_consume(&printer_buf, len);
+ printer_job_data(term->print_job, data, len);
+ bufchain_consume(&term->printer_buf, len);
}
}
-static void term_print_finish(void)
+static void term_print_finish(Terminal *term)
{
void *data;
int len, size;
char c;
- if (!printing && !only_printing)
+ if (!term->printing && !term->only_printing)
return; /* we need do nothing */
- term_print_flush();
- while ((size = bufchain_size(&printer_buf)) > 0) {
- bufchain_prefix(&printer_buf, &data, &len);
+ term_print_flush(term);
+ while ((size = bufchain_size(&term->printer_buf)) > 0) {
+ bufchain_prefix(&term->printer_buf, &data, &len);
c = *(char *)data;
if (c == '\033' || c == '\233') {
- bufchain_consume(&printer_buf, size);
+ bufchain_consume(&term->printer_buf, size);
break;
} else {
- printer_job_data(print_job, &c, 1);
- bufchain_consume(&printer_buf, 1);
+ printer_job_data(term->print_job, &c, 1);
+ bufchain_consume(&term->printer_buf, 1);
}
}
- printer_finish_job(print_job);
- print_job = NULL;
- printing = only_printing = FALSE;
+ printer_finish_job(term->print_job);
+ term->print_job = NULL;
+ term->printing = term->only_printing = FALSE;
}
/*
* in-memory display. There's a big state machine in here to
* process escape sequences...
*/
-void term_out(void)
+static void term_out(Terminal *term)
{
- int c, unget;
+ unsigned long c;
+ int unget;
unsigned char localbuf[256], *chars;
int nchars = 0;
unget = -1;
chars = NULL; /* placate compiler warnings */
- while (nchars > 0 || bufchain_size(&inbuf) > 0) {
+ while (nchars > 0 || unget != -1 || bufchain_size(&term->inbuf) > 0) {
if (unget == -1) {
if (nchars == 0) {
void *ret;
- bufchain_prefix(&inbuf, &ret, &nchars);
+ bufchain_prefix(&term->inbuf, &ret, &nchars);
if (nchars > sizeof(localbuf))
nchars = sizeof(localbuf);
memcpy(localbuf, ret, nchars);
- bufchain_consume(&inbuf, nchars);
+ bufchain_consume(&term->inbuf, nchars);
chars = localbuf;
assert(chars != NULL);
}
* Optionally log the session traffic to a file. Useful for
* debugging and possibly also useful for actual logging.
*/
- if (cfg.logtype == LGTYP_DEBUG)
- logtraffic((unsigned char) c, LGTYP_DEBUG);
+ if (term->logtype == LGTYP_DEBUG && term->logctx)
+ logtraffic(term->logctx, (unsigned char) c, LGTYP_DEBUG);
} else {
c = unget;
unget = -1;
* If we're printing, add the character to the printer
* buffer.
*/
- if (printing) {
- bufchain_add(&printer_buf, &c, 1);
+ if (term->printing) {
+ bufchain_add(&term->printer_buf, &c, 1);
/*
* If we're in print-only mode, we use a much simpler
* state machine designed only to recognise the ESC[4i
* termination sequence.
*/
- if (only_printing) {
+ if (term->only_printing) {
if (c == '\033')
- print_state = 1;
+ term->print_state = 1;
else if (c == (unsigned char)'\233')
- print_state = 2;
- else if (c == '[' && print_state == 1)
- print_state = 2;
- else if (c == '4' && print_state == 2)
- print_state = 3;
- else if (c == 'i' && print_state == 3)
- print_state = 4;
+ term->print_state = 2;
+ else if (c == '[' && term->print_state == 1)
+ term->print_state = 2;
+ else if (c == '4' && term->print_state == 2)
+ term->print_state = 3;
+ else if (c == 'i' && term->print_state == 3)
+ term->print_state = 4;
else
- print_state = 0;
- if (print_state == 4) {
- printing = only_printing = FALSE;
- term_print_finish();
+ term->print_state = 0;
+ if (term->print_state == 4) {
+ term_print_finish(term);
}
continue;
}
}
/* First see about all those translations. */
- if (termstate == TOPLEVEL) {
- if (in_utf)
- switch (utf_state) {
+ if (term->termstate == TOPLEVEL) {
+ if (in_utf(term))
+ switch (term->utf_state) {
case 0:
if (c < 0x80) {
/* UTF-8 must be stateless so we ignore iso2022. */
- if (unitab_ctrl[c] != 0xFF)
- c = unitab_ctrl[c];
- else c = ((unsigned char)c) | ATTR_ASCII;
+ if (term->ucsdata->unitab_ctrl[c] != 0xFF)
+ c = term->ucsdata->unitab_ctrl[c];
+ else c = ((unsigned char)c) | CSET_ASCII;
break;
} else if ((c & 0xe0) == 0xc0) {
- utf_size = utf_state = 1;
- utf_char = (c & 0x1f);
+ term->utf_size = term->utf_state = 1;
+ term->utf_char = (c & 0x1f);
} else if ((c & 0xf0) == 0xe0) {
- utf_size = utf_state = 2;
- utf_char = (c & 0x0f);
+ term->utf_size = term->utf_state = 2;
+ term->utf_char = (c & 0x0f);
} else if ((c & 0xf8) == 0xf0) {
- utf_size = utf_state = 3;
- utf_char = (c & 0x07);
+ term->utf_size = term->utf_state = 3;
+ term->utf_char = (c & 0x07);
} else if ((c & 0xfc) == 0xf8) {
- utf_size = utf_state = 4;
- utf_char = (c & 0x03);
+ term->utf_size = term->utf_state = 4;
+ term->utf_char = (c & 0x03);
} else if ((c & 0xfe) == 0xfc) {
- utf_size = utf_state = 5;
- utf_char = (c & 0x01);
+ term->utf_size = term->utf_state = 5;
+ term->utf_char = (c & 0x01);
} else {
c = UCSERR;
break;
if ((c & 0xC0) != 0x80) {
unget = c;
c = UCSERR;
- utf_state = 0;
+ term->utf_state = 0;
break;
}
- utf_char = (utf_char << 6) | (c & 0x3f);
- if (--utf_state)
+ term->utf_char = (term->utf_char << 6) | (c & 0x3f);
+ if (--term->utf_state)
continue;
- c = utf_char;
+ c = term->utf_char;
/* Is somebody trying to be evil! */
if (c < 0x80 ||
- (c < 0x800 && utf_size >= 2) ||
- (c < 0x10000 && utf_size >= 3) ||
- (c < 0x200000 && utf_size >= 4) ||
- (c < 0x4000000 && utf_size >= 5))
+ (c < 0x800 && term->utf_size >= 2) ||
+ (c < 0x10000 && term->utf_size >= 3) ||
+ (c < 0x200000 && term->utf_size >= 4) ||
+ (c < 0x4000000 && term->utf_size >= 5))
c = UCSERR;
/* Unicode line separator and paragraph separator are CR-LF */
if (c == 0xFFFE || c == 0xFFFF)
c = UCSERR;
- /* Oops this is a 16bit implementation */
- if (c >= 0x10000)
- c = 0xFFFD;
break;
}
/* Are we in the nasty ACS mode? Note: no sco in utf mode. */
- else if(sco_acs &&
- (c!='\033' && c!='\n' && c!='\r' && c!='\b'))
+ else if(term->sco_acs &&
+ (c!='\033' && c!='\012' && c!='\015' && c!='\b'))
{
- if (sco_acs == 2) c ^= 0x80;
- c |= ATTR_SCOACS;
+ if (term->sco_acs == 2) c |= 0x80;
+ c |= CSET_SCOACS;
} else {
- switch (cset_attr[cset]) {
+ switch (term->cset_attr[term->cset]) {
/*
* Linedraw characters are different from 'ESC ( B'
* only for a small range. For ones outside that
* range, make sure we use the same font as well as
* the same encoding.
*/
- case ATTR_LINEDRW:
- if (unitab_ctrl[c] != 0xFF)
- c = unitab_ctrl[c];
+ case CSET_LINEDRW:
+ if (term->ucsdata->unitab_ctrl[c] != 0xFF)
+ c = term->ucsdata->unitab_ctrl[c];
else
- c = ((unsigned char) c) | ATTR_LINEDRW;
+ c = ((unsigned char) c) | CSET_LINEDRW;
break;
- case ATTR_GBCHR:
+ case CSET_GBCHR:
/* If UK-ASCII, make the '#' a LineDraw Pound */
if (c == '#') {
- c = '}' | ATTR_LINEDRW;
+ c = '}' | CSET_LINEDRW;
break;
}
- /*FALLTHROUGH*/ case ATTR_ASCII:
- if (unitab_ctrl[c] != 0xFF)
- c = unitab_ctrl[c];
+ /*FALLTHROUGH*/ case CSET_ASCII:
+ if (term->ucsdata->unitab_ctrl[c] != 0xFF)
+ c = term->ucsdata->unitab_ctrl[c];
else
- c = ((unsigned char) c) | ATTR_ASCII;
+ c = ((unsigned char) c) | CSET_ASCII;
break;
- case ATTR_SCOACS:
- if (c>=' ') c = ((unsigned char)c) | ATTR_SCOACS;
+ case CSET_SCOACS:
+ if (c>=' ') c = ((unsigned char)c) | CSET_SCOACS;
break;
}
}
}
- /* How about C1 controls ? */
- if ((c & -32) == 0x80 && termstate < DO_CTRLS && !vt52_mode &&
- has_compat(VT220)) {
- termstate = SEEN_ESC;
- esc_query = FALSE;
- c = '@' + (c & 0x1F);
+ /*
+ * How about C1 controls?
+ * Explicitly ignore SCI (0x9a), which we don't translate to DECID.
+ */
+ if ((c & -32) == 0x80 && term->termstate < DO_CTRLS &&
+ !term->vt52_mode && has_compat(VT220)) {
+ if (c == 0x9a)
+ c = 0;
+ else {
+ term->termstate = SEEN_ESC;
+ term->esc_query = FALSE;
+ c = '@' + (c & 0x1F);
+ }
}
/* Or the GL control. */
- if (c == '\177' && termstate < DO_CTRLS && has_compat(OTHER)) {
- if (curs.x && !wrapnext)
- curs.x--;
- wrapnext = FALSE;
- fix_cpos;
- if (!cfg.no_dbackspace) /* destructive bksp might be disabled */
- *cpos = (' ' | curr_attr | ATTR_ASCII);
+ if (c == '\177' && term->termstate < DO_CTRLS && has_compat(OTHER)) {
+ if (term->curs.x && !term->wrapnext)
+ term->curs.x--;
+ term->wrapnext = FALSE;
+ /* destructive backspace might be disabled */
+ if (!term->no_dbackspace) {
+ check_boundary(term, term->curs.x, term->curs.y);
+ check_boundary(term, term->curs.x+1, term->curs.y);
+ copy_termchar(scrlineptr(term->curs.y),
+ term->curs.x, &term->erase_char);
+ }
} else
/* Or normal C0 controls. */
- if ((c & -32) == 0 && termstate < DO_CTRLS) {
+ if ((c & ~0x1F) == 0 && term->termstate < DO_CTRLS) {
switch (c) {
- case '\005': /* terminal type query */
- /* Strictly speaking this is VT100 but a VT100 defaults to
+ case '\005': /* ENQ: terminal type query */
+ /*
+ * Strictly speaking this is VT100 but a VT100 defaults to
* no response. Other terminals respond at their option.
*
* Don't put a CR in the default string as this tends to
* upset some weird software.
- *
- * An xterm returns "xterm" (5 characters)
*/
compatibility(ANSIMIN);
- {
- char abuf[256], *s, *d;
- int state = 0;
- for (s = cfg.answerback, d = abuf; *s; s++) {
- if (state) {
- if (*s >= 'a' && *s <= 'z')
- *d++ = (*s - ('a' - 1));
- else if ((*s >= '@' && *s <= '_') ||
- *s == '?' || (*s & 0x80))
- *d++ = ('@' ^ *s);
- else if (*s == '~')
- *d++ = '^';
- state = 0;
- } else if (*s == '^') {
- state = 1;
- } else
- *d++ = *s;
- }
- lpage_send(DEFAULT_CODEPAGE, abuf, d - abuf, 0);
+ if (term->ldisc) {
+ lpage_send(term->ldisc, DEFAULT_CODEPAGE,
+ term->answerback, term->answerbacklen, 0);
}
break;
- case '\007':
+ case '\007': /* BEL: Bell */
{
struct beeptime *newbeep;
unsigned long ticks;
ticks = GETTICKCOUNT();
- if (!beep_overloaded) {
- newbeep = smalloc(sizeof(struct beeptime));
+ if (!term->beep_overloaded) {
+ newbeep = snew(struct beeptime);
newbeep->ticks = ticks;
newbeep->next = NULL;
- if (!beephead)
- beephead = newbeep;
+ if (!term->beephead)
+ term->beephead = newbeep;
else
- beeptail->next = newbeep;
- beeptail = newbeep;
- nbeeps++;
+ term->beeptail->next = newbeep;
+ term->beeptail = newbeep;
+ term->nbeeps++;
}
/*
* Throw out any beeps that happened more than
* t seconds ago.
*/
- while (beephead &&
- beephead->ticks < ticks - cfg.bellovl_t) {
- struct beeptime *tmp = beephead;
- beephead = tmp->next;
+ while (term->beephead &&
+ term->beephead->ticks < ticks - term->bellovl_t) {
+ struct beeptime *tmp = term->beephead;
+ term->beephead = tmp->next;
sfree(tmp);
- if (!beephead)
- beeptail = NULL;
- nbeeps--;
+ if (!term->beephead)
+ term->beeptail = NULL;
+ term->nbeeps--;
}
- if (cfg.bellovl && beep_overloaded &&
- ticks - lastbeep >= (unsigned)cfg.bellovl_s) {
+ if (term->bellovl && term->beep_overloaded &&
+ ticks - term->lastbeep >= (unsigned)term->bellovl_s) {
/*
* If we're currently overloaded and the
* last beep was more than s seconds ago,
* leave overload mode.
*/
- beep_overloaded = FALSE;
- } else if (cfg.bellovl && !beep_overloaded &&
- nbeeps >= cfg.bellovl_n) {
+ term->beep_overloaded = FALSE;
+ } else if (term->bellovl && !term->beep_overloaded &&
+ term->nbeeps >= term->bellovl_n) {
/*
* Now, if we have n or more beeps
* remaining in the queue, go into overload
* mode.
*/
- beep_overloaded = TRUE;
+ term->beep_overloaded = TRUE;
}
- lastbeep = ticks;
+ term->lastbeep = ticks;
/*
* Perform an actual beep if we're not overloaded.
*/
- if (!cfg.bellovl || !beep_overloaded) {
- if (cfg.beep == BELL_VISUAL) {
- in_vbell = TRUE;
- vbell_startpoint = ticks;
- term_update();
- } else
- beep(cfg.beep);
+ if (!term->bellovl || !term->beep_overloaded) {
+ do_beep(term->frontend, term->beep);
+
+ if (term->beep == BELL_VISUAL) {
+ term_schedule_vbell(term, FALSE, 0);
+ }
}
- disptop = 0;
+ seen_disp_event(term);
}
break;
- case '\b':
- if (curs.x == 0 && (curs.y == 0 || wrap == 0));
- else if (curs.x == 0 && curs.y > 0)
- curs.x = cols - 1, curs.y--;
- else if (wrapnext)
- wrapnext = FALSE;
+ case '\b': /* BS: Back space */
+ if (term->curs.x == 0 &&
+ (term->curs.y == 0 || term->wrap == 0))
+ /* do nothing */ ;
+ else if (term->curs.x == 0 && term->curs.y > 0)
+ term->curs.x = term->cols - 1, term->curs.y--;
+ else if (term->wrapnext)
+ term->wrapnext = FALSE;
else
- curs.x--;
- fix_cpos;
- seen_disp_event = TRUE;
+ term->curs.x--;
+ seen_disp_event(term);
break;
- case '\016':
+ case '\016': /* LS1: Locking-shift one */
compatibility(VT100);
- cset = 1;
+ term->cset = 1;
break;
- case '\017':
+ case '\017': /* LS0: Locking-shift zero */
compatibility(VT100);
- cset = 0;
+ term->cset = 0;
break;
- case '\033':
- if (vt52_mode)
- termstate = VT52_ESC;
+ case '\033': /* ESC: Escape */
+ if (term->vt52_mode)
+ term->termstate = VT52_ESC;
else {
compatibility(ANSIMIN);
- termstate = SEEN_ESC;
- esc_query = FALSE;
+ term->termstate = SEEN_ESC;
+ term->esc_query = FALSE;
}
break;
- case '\r':
- curs.x = 0;
- wrapnext = FALSE;
- fix_cpos;
- seen_disp_event = TRUE;
- paste_hold = 0;
- logtraffic((unsigned char) c, LGTYP_ASCII);
+ case '\015': /* CR: Carriage return */
+ term->curs.x = 0;
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
+ term->paste_hold = 0;
+
+ if (term->crhaslf) {
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ }
+ if (term->logctx)
+ logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
break;
- case '\014':
+ case '\014': /* FF: Form feed */
if (has_compat(SCOANSI)) {
- move(0, 0, 0);
- erase_lots(FALSE, FALSE, TRUE);
- disptop = 0;
- wrapnext = FALSE;
- seen_disp_event = 1;
+ move(term, 0, 0, 0);
+ erase_lots(term, FALSE, FALSE, TRUE);
+ term->disptop = 0;
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
break;
}
- case '\013':
+ case '\013': /* VT: Line tabulation */
compatibility(VT100);
- case '\n':
- if (curs.y == marg_b)
- scroll(marg_t, marg_b, 1, TRUE);
- else if (curs.y < rows - 1)
- curs.y++;
- if (cfg.lfhascr)
- curs.x = 0;
- fix_cpos;
- wrapnext = FALSE;
- seen_disp_event = 1;
- paste_hold = 0;
- logtraffic((unsigned char) c, LGTYP_ASCII);
+ case '\012': /* LF: Line feed */
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ if (term->lfhascr)
+ term->curs.x = 0;
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
+ term->paste_hold = 0;
+ if (term->logctx)
+ logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
break;
- case '\t':
+ case '\t': /* HT: Character tabulation */
{
- pos old_curs = curs;
- unsigned long *ldata = lineptr(curs.y);
+ pos old_curs = term->curs;
+ termline *ldata = scrlineptr(term->curs.y);
do {
- curs.x++;
- } while (curs.x < cols - 1 && !tabs[curs.x]);
+ term->curs.x++;
+ } while (term->curs.x < term->cols - 1 &&
+ !term->tabs[term->curs.x]);
- if ((ldata[cols] & LATTR_MODE) != LATTR_NORM) {
- if (curs.x >= cols / 2)
- curs.x = cols / 2 - 1;
+ if ((ldata->lattr & LATTR_MODE) != LATTR_NORM) {
+ if (term->curs.x >= term->cols / 2)
+ term->curs.x = term->cols / 2 - 1;
} else {
- if (curs.x >= cols)
- curs.x = cols - 1;
+ if (term->curs.x >= term->cols)
+ term->curs.x = term->cols - 1;
}
- fix_cpos;
- check_selection(old_curs, curs);
+ check_selection(term, old_curs, term->curs);
}
- seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
}
} else
- switch (termstate) {
+ switch (term->termstate) {
case TOPLEVEL:
- /* Only graphic characters get this far, ctrls are stripped above */
- if (wrapnext && wrap) {
- cpos[1] |= LATTR_WRAPPED;
- if (curs.y == marg_b)
- scroll(marg_t, marg_b, 1, TRUE);
- else if (curs.y < rows - 1)
- curs.y++;
- curs.x = 0;
- fix_cpos;
- wrapnext = FALSE;
- }
- if (insert)
- insch(1);
- if (selstate != NO_SELECTION) {
- pos cursplus = curs;
- incpos(cursplus);
- check_selection(curs, cursplus);
- }
- if ((c & CSET_MASK) == ATTR_ASCII || (c & CSET_MASK) == 0)
- logtraffic((unsigned char) c, LGTYP_ASCII);
+ /* Only graphic characters get this far;
+ * ctrls are stripped above */
{
- extern int wcwidth(wchar_t ucs);
+ termline *cline = scrlineptr(term->curs.y);
int width = 0;
if (DIRECT_CHAR(c))
width = 1;
if (!width)
- width = wcwidth((wchar_t) c);
+ width = (term->cjk_ambig_wide ?
+ mk_wcwidth_cjk((unsigned int) c) :
+ mk_wcwidth((unsigned int) c));
+
+ if (term->wrapnext && term->wrap && width > 0) {
+ cline->lattr |= LATTR_WRAPPED;
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ term->curs.x = 0;
+ term->wrapnext = FALSE;
+ cline = scrlineptr(term->curs.y);
+ }
+ if (term->insert && width > 0)
+ insch(term, width);
+ if (term->selstate != NO_SELECTION) {
+ pos cursplus = term->curs;
+ incpos(cursplus);
+ check_selection(term, term->curs, cursplus);
+ }
+ if (((c & CSET_MASK) == CSET_ASCII ||
+ (c & CSET_MASK) == 0) &&
+ term->logctx)
+ logtraffic(term->logctx, (unsigned char) c,
+ LGTYP_ASCII);
+
switch (width) {
case 2:
- *cpos++ = c | curr_attr;
- if (++curs.x == cols) {
- *cpos |= LATTR_WRAPPED;
- if (curs.y == marg_b)
- scroll(marg_t, marg_b, 1, TRUE);
- else if (curs.y < rows - 1)
- curs.y++;
- curs.x = 0;
- fix_cpos;
+ /*
+ * If we're about to display a double-width
+ * character starting in the rightmost
+ * column, then we do something special
+ * instead. We must print a space in the
+ * last column of the screen, then wrap;
+ * and we also set LATTR_WRAPPED2 which
+ * instructs subsequent cut-and-pasting not
+ * only to splice this line to the one
+ * after it, but to ignore the space in the
+ * last character position as well.
+ * (Because what was actually output to the
+ * terminal was presumably just a sequence
+ * of CJK characters, and we don't want a
+ * space to be pasted in the middle of
+ * those just because they had the
+ * misfortune to start in the wrong parity
+ * column. xterm concurs.)
+ */
+ check_boundary(term, term->curs.x, term->curs.y);
+ check_boundary(term, term->curs.x+2, term->curs.y);
+ if (term->curs.x == term->cols-1) {
+ copy_termchar(cline, term->curs.x,
+ &term->erase_char);
+ cline->lattr |= LATTR_WRAPPED | LATTR_WRAPPED2;
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b,
+ 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ term->curs.x = 0;
+ cline = scrlineptr(term->curs.y);
+ /* Now we must check_boundary again, of course. */
+ check_boundary(term, term->curs.x, term->curs.y);
+ check_boundary(term, term->curs.x+2, term->curs.y);
}
- *cpos++ = UCSWIDE | curr_attr;
+
+ /* FULL-TERMCHAR */
+ clear_cc(cline, term->curs.x);
+ cline->chars[term->curs.x].chr = c;
+ cline->chars[term->curs.x].attr = term->curr_attr;
+
+ term->curs.x++;
+
+ /* FULL-TERMCHAR */
+ clear_cc(cline, term->curs.x);
+ cline->chars[term->curs.x].chr = UCSWIDE;
+ cline->chars[term->curs.x].attr = term->curr_attr;
+
break;
case 1:
- *cpos++ = c | curr_attr;
+ check_boundary(term, term->curs.x, term->curs.y);
+ check_boundary(term, term->curs.x+1, term->curs.y);
+
+ /* FULL-TERMCHAR */
+ clear_cc(cline, term->curs.x);
+ cline->chars[term->curs.x].chr = c;
+ cline->chars[term->curs.x].attr = term->curr_attr;
+
break;
+ case 0:
+ if (term->curs.x > 0) {
+ int x = term->curs.x - 1;
+
+ /* If we're in wrapnext state, the character
+ * to combine with is _here_, not to our left. */
+ if (term->wrapnext)
+ x++;
+
+ /*
+ * If the previous character is
+ * UCSWIDE, back up another one.
+ */
+ if (cline->chars[x].chr == UCSWIDE) {
+ assert(x > 0);
+ x--;
+ }
+
+ add_cc(cline, x, c);
+ seen_disp_event(term);
+ }
+ continue;
default:
continue;
}
- }
- curs.x++;
- if (curs.x == cols) {
- cpos--;
- curs.x--;
- wrapnext = TRUE;
- if (wrap && vt52_mode) {
- cpos[1] |= LATTR_WRAPPED;
- if (curs.y == marg_b)
- scroll(marg_t, marg_b, 1, TRUE);
- else if (curs.y < rows - 1)
- curs.y++;
- curs.x = 0;
- fix_cpos;
- wrapnext = FALSE;
+ term->curs.x++;
+ if (term->curs.x == term->cols) {
+ term->curs.x--;
+ term->wrapnext = TRUE;
+ if (term->wrap && term->vt52_mode) {
+ cline->lattr |= LATTR_WRAPPED;
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ term->curs.x = 0;
+ term->wrapnext = FALSE;
+ }
}
+ seen_disp_event(term);
}
- seen_disp_event = 1;
break;
case OSC_MAYBE_ST:
* and _if_ we see a backslash, we process it.
*/
if (c == '\\') {
- do_osc();
- termstate = TOPLEVEL;
+ do_osc(term);
+ term->termstate = TOPLEVEL;
break;
}
/* else fall through */
case SEEN_ESC:
if (c >= ' ' && c <= '/') {
- if (esc_query)
- esc_query = -1;
+ if (term->esc_query)
+ term->esc_query = -1;
else
- esc_query = c;
+ term->esc_query = c;
break;
}
- termstate = TOPLEVEL;
- switch (ANSI(c, esc_query)) {
- case '[': /* enter CSI mode */
- termstate = SEEN_CSI;
- esc_nargs = 1;
- esc_args[0] = ARG_DEFAULT;
- esc_query = FALSE;
- break;
- case ']': /* xterm escape sequences */
+ term->termstate = TOPLEVEL;
+ switch (ANSI(c, term->esc_query)) {
+ case '[': /* enter CSI mode */
+ term->termstate = SEEN_CSI;
+ term->esc_nargs = 1;
+ term->esc_args[0] = ARG_DEFAULT;
+ term->esc_query = FALSE;
+ break;
+ case ']': /* OSC: xterm escape sequences */
/* Compatibility is nasty here, xterm, linux, decterm yuk! */
compatibility(OTHER);
- termstate = SEEN_OSC;
- esc_args[0] = 0;
+ term->termstate = SEEN_OSC;
+ term->esc_args[0] = 0;
break;
- case '7': /* save cursor */
+ case '7': /* DECSC: save cursor */
compatibility(VT100);
- save_cursor(TRUE);
+ save_cursor(term, TRUE);
break;
- case '8': /* restore cursor */
+ case '8': /* DECRC: restore cursor */
compatibility(VT100);
- save_cursor(FALSE);
- seen_disp_event = TRUE;
+ save_cursor(term, FALSE);
+ seen_disp_event(term);
break;
- case '=':
+ case '=': /* DECKPAM: Keypad application mode */
compatibility(VT100);
- app_keypad_keys = TRUE;
+ term->app_keypad_keys = TRUE;
break;
- case '>':
+ case '>': /* DECKPNM: Keypad numeric mode */
compatibility(VT100);
- app_keypad_keys = FALSE;
+ term->app_keypad_keys = FALSE;
break;
- case 'D': /* exactly equivalent to LF */
+ case 'D': /* IND: exactly equivalent to LF */
compatibility(VT100);
- if (curs.y == marg_b)
- scroll(marg_t, marg_b, 1, TRUE);
- else if (curs.y < rows - 1)
- curs.y++;
- fix_cpos;
- wrapnext = FALSE;
- seen_disp_event = TRUE;
- break;
- case 'E': /* exactly equivalent to CR-LF */
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
+ break;
+ case 'E': /* NEL: exactly equivalent to CR-LF */
compatibility(VT100);
- curs.x = 0;
- if (curs.y == marg_b)
- scroll(marg_t, marg_b, 1, TRUE);
- else if (curs.y < rows - 1)
- curs.y++;
- fix_cpos;
- wrapnext = FALSE;
- seen_disp_event = TRUE;
- break;
- case 'M': /* reverse index - backwards LF */
+ term->curs.x = 0;
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
+ break;
+ case 'M': /* RI: reverse index - backwards LF */
compatibility(VT100);
- if (curs.y == marg_t)
- scroll(marg_t, marg_b, -1, TRUE);
- else if (curs.y > 0)
- curs.y--;
- fix_cpos;
- wrapnext = FALSE;
- seen_disp_event = TRUE;
- break;
- case 'Z': /* terminal type query */
+ if (term->curs.y == term->marg_t)
+ scroll(term, term->marg_t, term->marg_b, -1, TRUE);
+ else if (term->curs.y > 0)
+ term->curs.y--;
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
+ break;
+ case 'Z': /* DECID: terminal type query */
compatibility(VT100);
- ldisc_send(id_string, strlen(id_string), 0);
+ if (term->ldisc)
+ ldisc_send(term->ldisc, term->id_string,
+ strlen(term->id_string), 0);
break;
- case 'c': /* restore power-on settings */
+ case 'c': /* RIS: restore power-on settings */
compatibility(VT100);
- power_on();
- if (reset_132) {
- if (!cfg.no_remote_resize)
- request_resize(80, rows);
- reset_132 = 0;
+ power_on(term, TRUE);
+ if (term->ldisc) /* cause ldisc to notice changes */
+ ldisc_send(term->ldisc, NULL, 0, 0);
+ if (term->reset_132) {
+ if (!term->no_remote_resize)
+ request_resize(term->frontend, 80, term->rows);
+ term->reset_132 = 0;
}
- fix_cpos;
- disptop = 0;
- seen_disp_event = TRUE;
+ term->disptop = 0;
+ seen_disp_event(term);
break;
- case 'H': /* set a tab */
+ case 'H': /* HTS: set a tab */
compatibility(VT100);
- tabs[curs.x] = TRUE;
+ term->tabs[term->curs.x] = TRUE;
break;
- case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
+ case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
compatibility(VT100);
{
- unsigned long *ldata;
+ termline *ldata;
int i, j;
pos scrtop, scrbot;
- for (i = 0; i < rows; i++) {
- ldata = lineptr(i);
- for (j = 0; j < cols; j++)
- ldata[j] = ATTR_DEFAULT | 'E';
- ldata[cols] = 0;
+ for (i = 0; i < term->rows; i++) {
+ ldata = scrlineptr(i);
+ for (j = 0; j < term->cols; j++) {
+ copy_termchar(ldata, j,
+ &term->basic_erase_char);
+ ldata->chars[j].chr = 'E';
+ }
+ ldata->lattr = LATTR_NORM;
}
- disptop = 0;
- seen_disp_event = TRUE;
+ term->disptop = 0;
+ seen_disp_event(term);
scrtop.x = scrtop.y = 0;
scrbot.x = 0;
- scrbot.y = rows;
- check_selection(scrtop, scrbot);
+ scrbot.y = term->rows;
+ check_selection(term, scrtop, scrbot);
}
break;
case ANSI('6', '#'):
compatibility(VT100);
{
- unsigned long nlattr;
- unsigned long *ldata;
- switch (ANSI(c, esc_query)) {
- case ANSI('3', '#'):
+ int nlattr;
+
+ switch (ANSI(c, term->esc_query)) {
+ case ANSI('3', '#'): /* DECDHL: 2*height, top */
nlattr = LATTR_TOP;
break;
- case ANSI('4', '#'):
+ case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
nlattr = LATTR_BOT;
break;
- case ANSI('5', '#'):
+ case ANSI('5', '#'): /* DECSWL: normal */
nlattr = LATTR_NORM;
break;
- default: /* spiritually case ANSI('6', '#'): */
+ default: /* case ANSI('6', '#'): DECDWL: 2*width */
nlattr = LATTR_WIDE;
break;
}
- ldata = lineptr(curs.y);
- ldata[cols] &= ~LATTR_MODE;
- ldata[cols] |= nlattr;
+ scrlineptr(term->curs.y)->lattr = nlattr;
}
break;
-
+ /* GZD4: G0 designate 94-set */
case ANSI('A', '('):
compatibility(VT100);
- if (!cfg.no_remote_charset)
- cset_attr[0] = ATTR_GBCHR;
+ if (!term->no_remote_charset)
+ term->cset_attr[0] = CSET_GBCHR;
break;
case ANSI('B', '('):
compatibility(VT100);
- if (!cfg.no_remote_charset)
- cset_attr[0] = ATTR_ASCII;
+ if (!term->no_remote_charset)
+ term->cset_attr[0] = CSET_ASCII;
break;
case ANSI('0', '('):
compatibility(VT100);
- if (!cfg.no_remote_charset)
- cset_attr[0] = ATTR_LINEDRW;
+ if (!term->no_remote_charset)
+ term->cset_attr[0] = CSET_LINEDRW;
break;
case ANSI('U', '('):
compatibility(OTHER);
- if (!cfg.no_remote_charset)
- cset_attr[0] = ATTR_SCOACS;
+ if (!term->no_remote_charset)
+ term->cset_attr[0] = CSET_SCOACS;
break;
-
+ /* G1D4: G1-designate 94-set */
case ANSI('A', ')'):
compatibility(VT100);
- if (!cfg.no_remote_charset)
- cset_attr[1] = ATTR_GBCHR;
+ if (!term->no_remote_charset)
+ term->cset_attr[1] = CSET_GBCHR;
break;
case ANSI('B', ')'):
compatibility(VT100);
- if (!cfg.no_remote_charset)
- cset_attr[1] = ATTR_ASCII;
+ if (!term->no_remote_charset)
+ term->cset_attr[1] = CSET_ASCII;
break;
case ANSI('0', ')'):
compatibility(VT100);
- if (!cfg.no_remote_charset)
- cset_attr[1] = ATTR_LINEDRW;
+ if (!term->no_remote_charset)
+ term->cset_attr[1] = CSET_LINEDRW;
break;
case ANSI('U', ')'):
compatibility(OTHER);
- if (!cfg.no_remote_charset)
- cset_attr[1] = ATTR_SCOACS;
+ if (!term->no_remote_charset)
+ term->cset_attr[1] = CSET_SCOACS;
break;
-
+ /* DOCS: Designate other coding system */
case ANSI('8', '%'): /* Old Linux code */
case ANSI('G', '%'):
compatibility(OTHER);
- if (!cfg.no_remote_charset)
- utf = 1;
+ if (!term->no_remote_charset)
+ term->utf = 1;
break;
case ANSI('@', '%'):
compatibility(OTHER);
- if (!cfg.no_remote_charset)
- utf = 0;
+ if (!term->no_remote_charset)
+ term->utf = 0;
break;
}
break;
case SEEN_CSI:
- termstate = TOPLEVEL; /* default */
+ term->termstate = TOPLEVEL; /* default */
if (isdigit(c)) {
- if (esc_nargs <= ARGS_MAX) {
- if (esc_args[esc_nargs - 1] == ARG_DEFAULT)
- esc_args[esc_nargs - 1] = 0;
- esc_args[esc_nargs - 1] =
- 10 * esc_args[esc_nargs - 1] + c - '0';
+ if (term->esc_nargs <= ARGS_MAX) {
+ if (term->esc_args[term->esc_nargs - 1] == ARG_DEFAULT)
+ term->esc_args[term->esc_nargs - 1] = 0;
+ term->esc_args[term->esc_nargs - 1] =
+ 10 * term->esc_args[term->esc_nargs - 1] + c - '0';
}
- termstate = SEEN_CSI;
+ term->termstate = SEEN_CSI;
} else if (c == ';') {
- if (++esc_nargs <= ARGS_MAX)
- esc_args[esc_nargs - 1] = ARG_DEFAULT;
- termstate = SEEN_CSI;
+ if (term->esc_nargs < ARGS_MAX)
+ term->esc_args[term->esc_nargs++] = ARG_DEFAULT;
+ term->termstate = SEEN_CSI;
} else if (c < '@') {
- if (esc_query)
- esc_query = -1;
+ if (term->esc_query)
+ term->esc_query = -1;
else if (c == '?')
- esc_query = TRUE;
+ term->esc_query = TRUE;
else
- esc_query = c;
- termstate = SEEN_CSI;
+ term->esc_query = c;
+ term->termstate = SEEN_CSI;
} else
- switch (ANSI(c, esc_query)) {
- case 'A': /* move up N lines */
- move(curs.x, curs.y - def(esc_args[0], 1), 1);
- seen_disp_event = TRUE;
+ switch (ANSI(c, term->esc_query)) {
+ case 'A': /* CUU: move up N lines */
+ move(term, term->curs.x,
+ term->curs.y - def(term->esc_args[0], 1), 1);
+ seen_disp_event(term);
break;
- case 'e': /* move down N lines */
+ case 'e': /* VPR: move down N lines */
compatibility(ANSI);
/* FALLTHROUGH */
- case 'B':
- move(curs.x, curs.y + def(esc_args[0], 1), 1);
- seen_disp_event = TRUE;
+ case 'B': /* CUD: Cursor down */
+ move(term, term->curs.x,
+ term->curs.y + def(term->esc_args[0], 1), 1);
+ seen_disp_event(term);
break;
- case ANSI('c', '>'): /* report xterm version */
+ case ANSI('c', '>'): /* DA: report xterm version */
compatibility(OTHER);
/* this reports xterm version 136 so that VIM can
use the drag messages from the mouse reporting */
- ldisc_send("\033[>0;136;0c", 11, 0);
+ if (term->ldisc)
+ ldisc_send(term->ldisc, "\033[>0;136;0c", 11, 0);
break;
- case 'a': /* move right N cols */
+ case 'a': /* HPR: move right N cols */
compatibility(ANSI);
/* FALLTHROUGH */
- case 'C':
- move(curs.x + def(esc_args[0], 1), curs.y, 1);
- seen_disp_event = TRUE;
+ case 'C': /* CUF: Cursor right */
+ move(term, term->curs.x + def(term->esc_args[0], 1),
+ term->curs.y, 1);
+ seen_disp_event(term);
break;
- case 'D': /* move left N cols */
- move(curs.x - def(esc_args[0], 1), curs.y, 1);
- seen_disp_event = TRUE;
+ case 'D': /* CUB: move left N cols */
+ move(term, term->curs.x - def(term->esc_args[0], 1),
+ term->curs.y, 1);
+ seen_disp_event(term);
break;
- case 'E': /* move down N lines and CR */
+ case 'E': /* CNL: move down N lines and CR */
compatibility(ANSI);
- move(0, curs.y + def(esc_args[0], 1), 1);
- seen_disp_event = TRUE;
+ move(term, 0,
+ term->curs.y + def(term->esc_args[0], 1), 1);
+ seen_disp_event(term);
break;
- case 'F': /* move up N lines and CR */
+ case 'F': /* CPL: move up N lines and CR */
compatibility(ANSI);
- move(0, curs.y - def(esc_args[0], 1), 1);
- seen_disp_event = TRUE;
+ move(term, 0,
+ term->curs.y - def(term->esc_args[0], 1), 1);
+ seen_disp_event(term);
break;
- case 'G':
- case '`': /* set horizontal posn */
+ case 'G': /* CHA */
+ case '`': /* HPA: set horizontal posn */
compatibility(ANSI);
- move(def(esc_args[0], 1) - 1, curs.y, 0);
- seen_disp_event = TRUE;
+ move(term, def(term->esc_args[0], 1) - 1,
+ term->curs.y, 0);
+ seen_disp_event(term);
break;
- case 'd': /* set vertical posn */
+ case 'd': /* VPA: set vertical posn */
compatibility(ANSI);
- move(curs.x,
- (dec_om ? marg_t : 0) + def(esc_args[0],
- 1) - 1,
- (dec_om ? 2 : 0));
- seen_disp_event = TRUE;
+ move(term, term->curs.x,
+ ((term->dec_om ? term->marg_t : 0) +
+ def(term->esc_args[0], 1) - 1),
+ (term->dec_om ? 2 : 0));
+ seen_disp_event(term);
break;
- case 'H':
- case 'f': /* set horz and vert posns at once */
- if (esc_nargs < 2)
- esc_args[1] = ARG_DEFAULT;
- move(def(esc_args[1], 1) - 1,
- (dec_om ? marg_t : 0) + def(esc_args[0],
- 1) - 1,
- (dec_om ? 2 : 0));
- seen_disp_event = TRUE;
+ case 'H': /* CUP */
+ case 'f': /* HVP: set horz and vert posns at once */
+ if (term->esc_nargs < 2)
+ term->esc_args[1] = ARG_DEFAULT;
+ move(term, def(term->esc_args[1], 1) - 1,
+ ((term->dec_om ? term->marg_t : 0) +
+ def(term->esc_args[0], 1) - 1),
+ (term->dec_om ? 2 : 0));
+ seen_disp_event(term);
break;
- case 'J': /* erase screen or parts of it */
+ case 'J': /* ED: erase screen or parts of it */
{
- unsigned int i = def(esc_args[0], 0) + 1;
- if (i > 3)
- i = 0;
- erase_lots(FALSE, !!(i & 2), !!(i & 1));
+ unsigned int i = def(term->esc_args[0], 0);
+ if (i == 3) {
+ /* Erase Saved Lines (xterm)
+ * This follows Thomas Dickey's xterm. */
+ term_clrsb(term);
+ } else {
+ i++;
+ if (i > 3)
+ i = 0;
+ erase_lots(term, FALSE, !!(i & 2), !!(i & 1));
+ }
}
- disptop = 0;
- seen_disp_event = TRUE;
+ term->disptop = 0;
+ seen_disp_event(term);
break;
- case 'K': /* erase line or parts of it */
+ case 'K': /* EL: erase line or parts of it */
{
- unsigned int i = def(esc_args[0], 0) + 1;
+ unsigned int i = def(term->esc_args[0], 0) + 1;
if (i > 3)
i = 0;
- erase_lots(TRUE, !!(i & 2), !!(i & 1));
+ erase_lots(term, TRUE, !!(i & 2), !!(i & 1));
}
- seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'L': /* insert lines */
+ case 'L': /* IL: insert lines */
compatibility(VT102);
- if (curs.y <= marg_b)
- scroll(curs.y, marg_b, -def(esc_args[0], 1),
- FALSE);
- fix_cpos;
- seen_disp_event = TRUE;
+ if (term->curs.y <= term->marg_b)
+ scroll(term, term->curs.y, term->marg_b,
+ -def(term->esc_args[0], 1), FALSE);
+ seen_disp_event(term);
break;
- case 'M': /* delete lines */
+ case 'M': /* DL: delete lines */
compatibility(VT102);
- if (curs.y <= marg_b)
- scroll(curs.y, marg_b, def(esc_args[0], 1),
+ if (term->curs.y <= term->marg_b)
+ scroll(term, term->curs.y, term->marg_b,
+ def(term->esc_args[0], 1),
TRUE);
- fix_cpos;
- seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case '@': /* insert chars */
+ case '@': /* ICH: insert chars */
/* XXX VTTEST says this is vt220, vt510 manual says vt102 */
compatibility(VT102);
- insch(def(esc_args[0], 1));
- seen_disp_event = TRUE;
+ insch(term, def(term->esc_args[0], 1));
+ seen_disp_event(term);
break;
- case 'P': /* delete chars */
+ case 'P': /* DCH: delete chars */
compatibility(VT102);
- insch(-def(esc_args[0], 1));
- seen_disp_event = TRUE;
+ insch(term, -def(term->esc_args[0], 1));
+ seen_disp_event(term);
break;
- case 'c': /* terminal type query */
+ case 'c': /* DA: terminal type query */
compatibility(VT100);
/* This is the response for a VT102 */
- ldisc_send(id_string, strlen(id_string), 0);
+ if (term->ldisc)
+ ldisc_send(term->ldisc, term->id_string,
+ strlen(term->id_string), 0);
break;
- case 'n': /* cursor position query */
- if (esc_args[0] == 6) {
- char buf[32];
- sprintf(buf, "\033[%d;%dR", curs.y + 1,
- curs.x + 1);
- ldisc_send(buf, strlen(buf), 0);
- } else if (esc_args[0] == 5) {
- ldisc_send("\033[0n", 4, 0);
+ case 'n': /* DSR: cursor position query */
+ if (term->ldisc) {
+ if (term->esc_args[0] == 6) {
+ char buf[32];
+ sprintf(buf, "\033[%d;%dR", term->curs.y + 1,
+ term->curs.x + 1);
+ ldisc_send(term->ldisc, buf, strlen(buf), 0);
+ } else if (term->esc_args[0] == 5) {
+ ldisc_send(term->ldisc, "\033[0n", 4, 0);
+ }
}
break;
- case 'h': /* toggle modes to high */
+ case 'h': /* SM: toggle modes to high */
case ANSI_QUE('h'):
compatibility(VT100);
{
int i;
- for (i = 0; i < esc_nargs; i++)
- toggle_mode(esc_args[i], esc_query, TRUE);
+ for (i = 0; i < term->esc_nargs; i++)
+ toggle_mode(term, term->esc_args[i],
+ term->esc_query, TRUE);
}
break;
- case 'i':
+ case 'i': /* MC: Media copy */
case ANSI_QUE('i'):
compatibility(VT100);
{
- if (esc_nargs != 1) break;
- if (esc_args[0] == 5 && *cfg.printer) {
- printing = TRUE;
- only_printing = !esc_query;
- print_state = 0;
- term_print_setup();
- } else if (esc_args[0] == 4 && printing) {
- printing = FALSE;
- only_printing = FALSE;
- term_print_finish();
+ char *printer;
+ if (term->esc_nargs != 1) break;
+ if (term->esc_args[0] == 5 &&
+ (printer = conf_get_str(term->conf,
+ CONF_printer))[0]) {
+ term->printing = TRUE;
+ term->only_printing = !term->esc_query;
+ term->print_state = 0;
+ term_print_setup(term, printer);
+ } else if (term->esc_args[0] == 4 &&
+ term->printing) {
+ term_print_finish(term);
}
}
break;
- case 'l': /* toggle modes to low */
+ case 'l': /* RM: toggle modes to low */
case ANSI_QUE('l'):
compatibility(VT100);
{
int i;
- for (i = 0; i < esc_nargs; i++)
- toggle_mode(esc_args[i], esc_query, FALSE);
+ for (i = 0; i < term->esc_nargs; i++)
+ toggle_mode(term, term->esc_args[i],
+ term->esc_query, FALSE);
}
break;
- case 'g': /* clear tabs */
+ case 'g': /* TBC: clear tabs */
compatibility(VT100);
- if (esc_nargs == 1) {
- if (esc_args[0] == 0) {
- tabs[curs.x] = FALSE;
- } else if (esc_args[0] == 3) {
+ if (term->esc_nargs == 1) {
+ if (term->esc_args[0] == 0) {
+ term->tabs[term->curs.x] = FALSE;
+ } else if (term->esc_args[0] == 3) {
int i;
- for (i = 0; i < cols; i++)
- tabs[i] = FALSE;
+ for (i = 0; i < term->cols; i++)
+ term->tabs[i] = FALSE;
}
}
break;
- case 'r': /* set scroll margins */
+ case 'r': /* DECSTBM: set scroll margins */
compatibility(VT100);
- if (esc_nargs <= 2) {
+ if (term->esc_nargs <= 2) {
int top, bot;
- top = def(esc_args[0], 1) - 1;
- bot = (esc_nargs <= 1
- || esc_args[1] ==
- 0 ? rows : def(esc_args[1], rows)) - 1;
- if (bot >= rows)
- bot = rows - 1;
+ top = def(term->esc_args[0], 1) - 1;
+ bot = (term->esc_nargs <= 1
+ || term->esc_args[1] == 0 ?
+ term->rows :
+ def(term->esc_args[1], term->rows)) - 1;
+ if (bot >= term->rows)
+ bot = term->rows - 1;
/* VTTEST Bug 9 - if region is less than 2 lines
* don't change region.
*/
if (bot - top > 0) {
- marg_t = top;
- marg_b = bot;
- curs.x = 0;
+ term->marg_t = top;
+ term->marg_b = bot;
+ term->curs.x = 0;
/*
* I used to think the cursor should be
* placed at the top of the newly marginned
* area. Apparently not: VMS TPU falls over
* if so.
*
- * Well actually it should for Origin mode - RDB
+ * Well actually it should for
+ * Origin mode - RDB
*/
- curs.y = (dec_om ? marg_t : 0);
- fix_cpos;
- seen_disp_event = TRUE;
+ term->curs.y = (term->dec_om ?
+ term->marg_t : 0);
+ seen_disp_event(term);
}
}
break;
- case 'm': /* set graphics rendition */
+ case 'm': /* SGR: set graphics rendition */
{
/*
- * A VT100 without the AVO only had one attribute, either
- * underline or reverse video depending on the cursor type,
- * this was selected by CSI 7m.
+ * A VT100 without the AVO only had one
+ * attribute, either underline or
+ * reverse video depending on the
+ * cursor type, this was selected by
+ * CSI 7m.
*
* case 2:
- * This is sometimes DIM, eg on the GIGI and Linux
+ * This is sometimes DIM, eg on the
+ * GIGI and Linux
* case 8:
* This is sometimes INVIS various ANSI.
* case 21:
* This like 22 disables BOLD, DIM and INVIS
*
- * The ANSI colours appear on any terminal that has colour
- * (obviously) but the interaction between sgr0 and the
- * colours varies but is usually related to the background
- * colour erase item.
- * The interaction between colour attributes and the mono
- * ones is also very implementation dependent.
+ * The ANSI colours appear on any
+ * terminal that has colour (obviously)
+ * but the interaction between sgr0 and
+ * the colours varies but is usually
+ * related to the background colour
+ * erase item. The interaction between
+ * colour attributes and the mono ones
+ * is also very implementation
+ * dependent.
*
- * The 39 and 49 attributes are likely to be unimplemented.
+ * The 39 and 49 attributes are likely
+ * to be unimplemented.
*/
int i;
- for (i = 0; i < esc_nargs; i++) {
- switch (def(esc_args[i], 0)) {
+ for (i = 0; i < term->esc_nargs; i++) {
+ switch (def(term->esc_args[i], 0)) {
case 0: /* restore defaults */
- curr_attr = ATTR_DEFAULT;
+ term->curr_attr = term->default_attr;
break;
case 1: /* enable bold */
compatibility(VT100AVO);
- curr_attr |= ATTR_BOLD;
+ term->curr_attr |= ATTR_BOLD;
break;
case 21: /* (enable double underline) */
compatibility(OTHER);
case 4: /* enable underline */
compatibility(VT100AVO);
- curr_attr |= ATTR_UNDER;
+ term->curr_attr |= ATTR_UNDER;
break;
case 5: /* enable blink */
compatibility(VT100AVO);
- curr_attr |= ATTR_BLINK;
+ term->curr_attr |= ATTR_BLINK;
+ break;
+ case 6: /* SCO light bkgrd */
+ compatibility(SCOANSI);
+ term->blink_is_real = FALSE;
+ term->curr_attr |= ATTR_BLINK;
+ term_schedule_tblink(term);
break;
case 7: /* enable reverse video */
- curr_attr |= ATTR_REVERSE;
+ term->curr_attr |= ATTR_REVERSE;
break;
case 10: /* SCO acs off */
compatibility(SCOANSI);
- if (cfg.no_remote_charset) break;
- sco_acs = 0; break;
+ if (term->no_remote_charset) break;
+ term->sco_acs = 0; break;
case 11: /* SCO acs on */
compatibility(SCOANSI);
- if (cfg.no_remote_charset) break;
- sco_acs = 1; break;
- case 12: /* SCO acs on flipped */
+ if (term->no_remote_charset) break;
+ term->sco_acs = 1; break;
+ case 12: /* SCO acs on, |0x80 */
compatibility(SCOANSI);
- if (cfg.no_remote_charset) break;
- sco_acs = 2; break;
+ if (term->no_remote_charset) break;
+ term->sco_acs = 2; break;
case 22: /* disable bold */
compatibility2(OTHER, VT220);
- curr_attr &= ~ATTR_BOLD;
+ term->curr_attr &= ~ATTR_BOLD;
break;
case 24: /* disable underline */
compatibility2(OTHER, VT220);
- curr_attr &= ~ATTR_UNDER;
+ term->curr_attr &= ~ATTR_UNDER;
break;
case 25: /* disable blink */
compatibility2(OTHER, VT220);
- curr_attr &= ~ATTR_BLINK;
+ term->curr_attr &= ~ATTR_BLINK;
break;
case 27: /* disable reverse video */
compatibility2(OTHER, VT220);
- curr_attr &= ~ATTR_REVERSE;
+ term->curr_attr &= ~ATTR_REVERSE;
break;
case 30:
case 31:
case 36:
case 37:
/* foreground */
- curr_attr &= ~ATTR_FGMASK;
- curr_attr |=
- (esc_args[i] - 30) << ATTR_FGSHIFT;
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr |=
+ (term->esc_args[i] - 30)<<ATTR_FGSHIFT;
+ break;
+ case 90:
+ case 91:
+ case 92:
+ case 93:
+ case 94:
+ case 95:
+ case 96:
+ case 97:
+ /* aixterm-style bright foreground */
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr |=
+ ((term->esc_args[i] - 90 + 8)
+ << ATTR_FGSHIFT);
break;
case 39: /* default-foreground */
- curr_attr &= ~ATTR_FGMASK;
- curr_attr |= ATTR_DEFFG;
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr |= ATTR_DEFFG;
break;
case 40:
case 41:
case 46:
case 47:
/* background */
- curr_attr &= ~ATTR_BGMASK;
- curr_attr |=
- (esc_args[i] - 40) << ATTR_BGSHIFT;
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr |=
+ (term->esc_args[i] - 40)<<ATTR_BGSHIFT;
+ break;
+ case 100:
+ case 101:
+ case 102:
+ case 103:
+ case 104:
+ case 105:
+ case 106:
+ case 107:
+ /* aixterm-style bright background */
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr |=
+ ((term->esc_args[i] - 100 + 8)
+ << ATTR_BGSHIFT);
break;
case 49: /* default-background */
- curr_attr &= ~ATTR_BGMASK;
- curr_attr |= ATTR_DEFBG;
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr |= ATTR_DEFBG;
+ break;
+ case 38: /* xterm 256-colour mode */
+ if (i+2 < term->esc_nargs &&
+ term->esc_args[i+1] == 5) {
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr |=
+ ((term->esc_args[i+2] & 0xFF)
+ << ATTR_FGSHIFT);
+ i += 2;
+ }
+ break;
+ case 48: /* xterm 256-colour mode */
+ if (i+2 < term->esc_nargs &&
+ term->esc_args[i+1] == 5) {
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr |=
+ ((term->esc_args[i+2] & 0xFF)
+ << ATTR_BGSHIFT);
+ i += 2;
+ }
break;
}
}
- if (use_bce)
- erase_char = (' ' | ATTR_ASCII |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
}
break;
case 's': /* save cursor */
- save_cursor(TRUE);
+ save_cursor(term, TRUE);
break;
case 'u': /* restore cursor */
- save_cursor(FALSE);
- seen_disp_event = TRUE;
+ save_cursor(term, FALSE);
+ seen_disp_event(term);
break;
- case 't': /* set page size - ie window height */
+ case 't': /* DECSLPP: set page size - ie window height */
/*
* VT340/VT420 sequence DECSLPP, DEC only allows values
* 24/25/36/48/72/144 other emulators (eg dtterm) use
* illegal values (eg first arg 1..9) for window changing
* and reports.
*/
- if (esc_nargs <= 1
- && (esc_args[0] < 1 || esc_args[0] >= 24)) {
+ if (term->esc_nargs <= 1
+ && (term->esc_args[0] < 1 ||
+ term->esc_args[0] >= 24)) {
compatibility(VT340TEXT);
- if (!cfg.no_remote_resize)
- request_resize(cols, def(esc_args[0], 24));
- deselect();
- } else if (esc_nargs >= 1 &&
- esc_args[0] >= 1 &&
- esc_args[0] < 24) {
+ if (!term->no_remote_resize)
+ request_resize(term->frontend, term->cols,
+ def(term->esc_args[0], 24));
+ deselect(term);
+ } else if (term->esc_nargs >= 1 &&
+ term->esc_args[0] >= 1 &&
+ term->esc_args[0] < 24) {
compatibility(OTHER);
- switch (esc_args[0]) {
+ switch (term->esc_args[0]) {
int x, y, len;
char buf[80], *p;
case 1:
- set_iconic(FALSE);
+ set_iconic(term->frontend, FALSE);
break;
case 2:
- set_iconic(TRUE);
+ set_iconic(term->frontend, TRUE);
break;
case 3:
- if (esc_nargs >= 3) {
- if (!cfg.no_remote_resize)
- move_window(def(esc_args[1], 0),
- def(esc_args[2], 0));
+ if (term->esc_nargs >= 3) {
+ if (!term->no_remote_resize)
+ move_window(term->frontend,
+ def(term->esc_args[1], 0),
+ def(term->esc_args[2], 0));
}
break;
case 4:
* manage it. */
break;
case 5:
- set_zorder(TRUE); /* move to top */
+ /* move to top */
+ set_zorder(term->frontend, TRUE);
break;
case 6:
- set_zorder(FALSE); /* move to bottom */
+ /* move to bottom */
+ set_zorder(term->frontend, FALSE);
break;
case 7:
- refresh_window();
+ refresh_window(term->frontend);
break;
case 8:
- if (esc_nargs >= 3) {
- if (!cfg.no_remote_resize)
- request_resize(def(esc_args[2], cfg.width),
- def(esc_args[1], cfg.height));
+ if (term->esc_nargs >= 3) {
+ if (!term->no_remote_resize)
+ request_resize(term->frontend,
+ def(term->esc_args[2], term->conf_width),
+ def(term->esc_args[1], term->conf_height));
}
break;
case 9:
- if (esc_nargs >= 2)
- set_zoomed(esc_args[1] ? TRUE : FALSE);
+ if (term->esc_nargs >= 2)
+ set_zoomed(term->frontend,
+ term->esc_args[1] ?
+ TRUE : FALSE);
break;
case 11:
- ldisc_send(is_iconic() ? "\033[1t" : "\033[2t",
- 4, 0);
+ if (term->ldisc)
+ ldisc_send(term->ldisc,
+ is_iconic(term->frontend) ?
+ "\033[2t" : "\033[1t", 4, 0);
break;
case 13:
- get_window_pos(&x, &y);
- len = sprintf(buf, "\033[3;%d;%dt", x, y);
- ldisc_send(buf, len, 0);
+ if (term->ldisc) {
+ get_window_pos(term->frontend, &x, &y);
+ len = sprintf(buf, "\033[3;%d;%dt", x, y);
+ ldisc_send(term->ldisc, buf, len, 0);
+ }
break;
case 14:
- get_window_pixels(&x, &y);
- len = sprintf(buf, "\033[4;%d;%dt", x, y);
- ldisc_send(buf, len, 0);
+ if (term->ldisc) {
+ get_window_pixels(term->frontend, &x, &y);
+ len = sprintf(buf, "\033[4;%d;%dt", y, x);
+ ldisc_send(term->ldisc, buf, len, 0);
+ }
break;
case 18:
- len = sprintf(buf, "\033[8;%d;%dt",
- rows, cols);
- ldisc_send(buf, len, 0);
+ if (term->ldisc) {
+ len = sprintf(buf, "\033[8;%d;%dt",
+ term->rows, term->cols);
+ ldisc_send(term->ldisc, buf, len, 0);
+ }
break;
case 19:
/*
*/
break;
case 20:
- p = get_window_title(TRUE);
- len = strlen(p);
- ldisc_send("\033]L", 3, 0);
- ldisc_send(p, len, 0);
- ldisc_send("\033\\", 2, 0);
+ if (term->ldisc &&
+ term->remote_qtitle_action != TITLE_NONE) {
+ if(term->remote_qtitle_action == TITLE_REAL)
+ p = get_window_title(term->frontend, TRUE);
+ else
+ p = EMPTY_WINDOW_TITLE;
+ len = strlen(p);
+ ldisc_send(term->ldisc, "\033]L", 3, 0);
+ ldisc_send(term->ldisc, p, len, 0);
+ ldisc_send(term->ldisc, "\033\\", 2, 0);
+ }
break;
case 21:
- p = get_window_title(FALSE);
- len = strlen(p);
- ldisc_send("\033]l", 3, 0);
- ldisc_send(p, len, 0);
- ldisc_send("\033\\", 2, 0);
+ if (term->ldisc &&
+ term->remote_qtitle_action != TITLE_NONE) {
+ if(term->remote_qtitle_action == TITLE_REAL)
+ p = get_window_title(term->frontend, FALSE);
+ else
+ p = EMPTY_WINDOW_TITLE;
+ len = strlen(p);
+ ldisc_send(term->ldisc, "\033]l", 3, 0);
+ ldisc_send(term->ldisc, p, len, 0);
+ ldisc_send(term->ldisc, "\033\\", 2, 0);
+ }
break;
}
}
break;
- case 'S':
+ case 'S': /* SU: Scroll up */
compatibility(SCOANSI);
- scroll(marg_t, marg_b, def(esc_args[0], 1), TRUE);
- fix_cpos;
- wrapnext = FALSE;
- seen_disp_event = TRUE;
+ scroll(term, term->marg_t, term->marg_b,
+ def(term->esc_args[0], 1), TRUE);
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
break;
- case 'T':
+ case 'T': /* SD: Scroll down */
compatibility(SCOANSI);
- scroll(marg_t, marg_b, -def(esc_args[0], 1), TRUE);
- fix_cpos;
- wrapnext = FALSE;
- seen_disp_event = TRUE;
+ scroll(term, term->marg_t, term->marg_b,
+ -def(term->esc_args[0], 1), TRUE);
+ term->wrapnext = FALSE;
+ seen_disp_event(term);
break;
- case ANSI('|', '*'):
- /* VT420 sequence DECSNLS
+ case ANSI('|', '*'): /* DECSNLS */
+ /*
* Set number of lines on screen
- * VT420 uses VGA like hardware and can support any size in
- * reasonable range (24..49 AIUI) with no default specified.
+ * VT420 uses VGA like hardware and can
+ * support any size in reasonable range
+ * (24..49 AIUI) with no default specified.
*/
compatibility(VT420);
- if (esc_nargs == 1 && esc_args[0] > 0) {
- if (!cfg.no_remote_resize)
- request_resize(cols, def(esc_args[0], cfg.height));
- deselect();
+ if (term->esc_nargs == 1 && term->esc_args[0] > 0) {
+ if (!term->no_remote_resize)
+ request_resize(term->frontend, term->cols,
+ def(term->esc_args[0],
+ term->conf_height));
+ deselect(term);
}
break;
- case ANSI('|', '$'):
- /* VT340/VT420 sequence DECSCPP
+ case ANSI('|', '$'): /* DECSCPP */
+ /*
* Set number of columns per page
- * Docs imply range is only 80 or 132, but I'll allow any.
+ * Docs imply range is only 80 or 132, but
+ * I'll allow any.
*/
compatibility(VT340TEXT);
- if (esc_nargs <= 1) {
- if (!cfg.no_remote_resize)
- request_resize(def(esc_args[0], cfg.width), rows);
- deselect();
+ if (term->esc_nargs <= 1) {
+ if (!term->no_remote_resize)
+ request_resize(term->frontend,
+ def(term->esc_args[0],
+ term->conf_width),
+ term->rows);
+ deselect(term);
}
break;
- case 'X': /* write N spaces w/o moving cursor */
- /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
+ case 'X': /* ECH: write N spaces w/o moving cursor */
+ /* XXX VTTEST says this is vt220, vt510 manual
+ * says vt100 */
compatibility(ANSIMIN);
{
- int n = def(esc_args[0], 1);
+ int n = def(term->esc_args[0], 1);
pos cursplus;
- unsigned long *p = cpos;
- if (n > cols - curs.x)
- n = cols - curs.x;
- cursplus = curs;
+ int p = term->curs.x;
+ termline *cline = scrlineptr(term->curs.y);
+
+ if (n > term->cols - term->curs.x)
+ n = term->cols - term->curs.x;
+ cursplus = term->curs;
cursplus.x += n;
- check_selection(curs, cursplus);
+ check_boundary(term, term->curs.x, term->curs.y);
+ check_boundary(term, term->curs.x+n, term->curs.y);
+ check_selection(term, term->curs, cursplus);
while (n--)
- *p++ = erase_char;
- seen_disp_event = TRUE;
+ copy_termchar(cline, p++,
+ &term->erase_char);
+ seen_disp_event(term);
}
break;
- case 'x': /* report terminal characteristics */
+ case 'x': /* DECREQTPARM: report terminal characteristics */
compatibility(VT100);
- {
+ if (term->ldisc) {
char buf[32];
- int i = def(esc_args[0], 0);
+ int i = def(term->esc_args[0], 0);
if (i == 0 || i == 1) {
strcpy(buf, "\033[2;1;1;112;112;1;0x");
buf[2] += i;
- ldisc_send(buf, 20, 0);
+ ldisc_send(term->ldisc, buf, 20, 0);
}
}
break;
- case 'Z': /* BackTab for xterm */
+ case 'Z': /* CBT */
compatibility(OTHER);
{
- int i = def(esc_args[0], 1);
- pos old_curs = curs;
+ int i = def(term->esc_args[0], 1);
+ pos old_curs = term->curs;
- for(;i>0 && curs.x>0; i--) {
+ for(;i>0 && term->curs.x>0; i--) {
do {
- curs.x--;
- } while (curs.x >0 && !tabs[curs.x]);
+ term->curs.x--;
+ } while (term->curs.x >0 &&
+ !term->tabs[term->curs.x]);
}
- fix_cpos;
- check_selection(old_curs, curs);
+ check_selection(term, old_curs, term->curs);
}
break;
- case ANSI('L', '='):
- compatibility(OTHER);
- use_bce = (esc_args[0] <= 0);
- erase_char = ERASE_CHAR;
- if (use_bce)
- erase_char = (' ' | ATTR_ASCII |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ case ANSI('c', '='): /* Hide or Show Cursor */
+ compatibility(SCOANSI);
+ switch(term->esc_args[0]) {
+ case 0: /* hide cursor */
+ term->cursor_on = FALSE;
+ break;
+ case 1: /* restore cursor */
+ term->big_cursor = FALSE;
+ term->cursor_on = TRUE;
+ break;
+ case 2: /* block cursor */
+ term->big_cursor = TRUE;
+ term->cursor_on = TRUE;
+ break;
+ }
+ break;
+ case ANSI('C', '='):
+ /*
+ * set cursor start on scanline esc_args[0] and
+ * end on scanline esc_args[1].If you set
+ * the bottom scan line to a value less than
+ * the top scan line, the cursor will disappear.
+ */
+ compatibility(SCOANSI);
+ if (term->esc_nargs >= 2) {
+ if (term->esc_args[0] > term->esc_args[1])
+ term->cursor_on = FALSE;
+ else
+ term->cursor_on = TRUE;
+ }
+ break;
+ case ANSI('D', '='):
+ compatibility(SCOANSI);
+ term->blink_is_real = FALSE;
+ term_schedule_tblink(term);
+ if (term->esc_args[0]>=1)
+ term->curr_attr |= ATTR_BLINK;
+ else
+ term->curr_attr &= ~ATTR_BLINK;
break;
case ANSI('E', '='):
- compatibility(OTHER);
- blink_is_real = (esc_args[0] >= 1);
+ compatibility(SCOANSI);
+ term->blink_is_real = (term->esc_args[0] >= 1);
+ term_schedule_tblink(term);
+ break;
+ case ANSI('F', '='): /* set normal foreground */
+ compatibility(SCOANSI);
+ if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
+ long colour =
+ (sco2ansicolour[term->esc_args[0] & 0x7] |
+ (term->esc_args[0] & 0x8)) <<
+ ATTR_FGSHIFT;
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr |= colour;
+ term->default_attr &= ~ATTR_FGMASK;
+ term->default_attr |= colour;
+ set_erase_char(term);
+ }
+ break;
+ case ANSI('G', '='): /* set normal background */
+ compatibility(SCOANSI);
+ if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
+ long colour =
+ (sco2ansicolour[term->esc_args[0] & 0x7] |
+ (term->esc_args[0] & 0x8)) <<
+ ATTR_BGSHIFT;
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr |= colour;
+ term->default_attr &= ~ATTR_BGMASK;
+ term->default_attr |= colour;
+ set_erase_char(term);
+ }
+ break;
+ case ANSI('L', '='):
+ compatibility(SCOANSI);
+ term->use_bce = (term->esc_args[0] <= 0);
+ set_erase_char(term);
break;
- case ANSI('p', '"'):
- /* Allow the host to make this emulator a 'perfect' VT102.
- * This first appeared in the VT220, but we do need to get
- * back to PuTTY mode so I won't check it.
+ case ANSI('p', '"'): /* DECSCL: set compat level */
+ /*
+ * Allow the host to make this emulator a
+ * 'perfect' VT102. This first appeared in
+ * the VT220, but we do need to get back to
+ * PuTTY mode so I won't check it.
*
* The arg in 40..42,50 are a PuTTY extension.
* The 2nd arg, 8bit vs 7bit is not checked.
*
- * Setting VT102 mode should also change the Fkeys to
- * generate PF* codes as a real VT102 has no Fkeys.
- * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys
- * send nothing.
+ * Setting VT102 mode should also change
+ * the Fkeys to generate PF* codes as a
+ * real VT102 has no Fkeys. The VT220 does
+ * this, F11..F13 become ESC,BS,LF other
+ * Fkeys send nothing.
*
* Note ESC c will NOT change this!
*/
- switch (esc_args[0]) {
+ switch (term->esc_args[0]) {
case 61:
- compatibility_level &= ~TM_VTXXX;
- compatibility_level |= TM_VT102;
+ term->compatibility_level &= ~TM_VTXXX;
+ term->compatibility_level |= TM_VT102;
break;
case 62:
- compatibility_level &= ~TM_VTXXX;
- compatibility_level |= TM_VT220;
+ term->compatibility_level &= ~TM_VTXXX;
+ term->compatibility_level |= TM_VT220;
break;
default:
- if (esc_args[0] > 60 && esc_args[0] < 70)
- compatibility_level |= TM_VTXXX;
+ if (term->esc_args[0] > 60 &&
+ term->esc_args[0] < 70)
+ term->compatibility_level |= TM_VTXXX;
break;
case 40:
- compatibility_level &= TM_VTXXX;
+ term->compatibility_level &= TM_VTXXX;
break;
case 41:
- compatibility_level = TM_PUTTY;
+ term->compatibility_level = TM_PUTTY;
break;
case 42:
- compatibility_level = TM_SCOANSI;
+ term->compatibility_level = TM_SCOANSI;
break;
case ARG_DEFAULT:
- compatibility_level = TM_PUTTY;
+ term->compatibility_level = TM_PUTTY;
break;
case 50:
break;
}
/* Change the response to CSI c */
- if (esc_args[0] == 50) {
+ if (term->esc_args[0] == 50) {
int i;
char lbuf[64];
- strcpy(id_string, "\033[?");
- for (i = 1; i < esc_nargs; i++) {
+ strcpy(term->id_string, "\033[?");
+ for (i = 1; i < term->esc_nargs; i++) {
if (i != 1)
- strcat(id_string, ";");
- sprintf(lbuf, "%d", esc_args[i]);
- strcat(id_string, lbuf);
+ strcat(term->id_string, ";");
+ sprintf(lbuf, "%d", term->esc_args[i]);
+ strcat(term->id_string, lbuf);
}
- strcat(id_string, "c");
+ strcat(term->id_string, "c");
}
#if 0
/* Is this a good idea ?
* Well we should do a soft reset at this point ...
*/
if (!has_compat(VT420) && has_compat(VT100)) {
- if (!cfg.no_remote_resize) {
- if (reset_132)
+ if (!term->no_remote_resize) {
+ if (term->reset_132)
request_resize(132, 24);
else
request_resize(80, 24);
}
break;
case SEEN_OSC:
- osc_w = FALSE;
+ term->osc_w = FALSE;
switch (c) {
case 'P': /* Linux palette sequence */
- termstate = SEEN_OSC_P;
- osc_strlen = 0;
+ term->termstate = SEEN_OSC_P;
+ term->osc_strlen = 0;
break;
case 'R': /* Linux palette reset */
- palette_reset();
- term_invalidate();
- termstate = TOPLEVEL;
+ palette_reset(term->frontend);
+ term_invalidate(term);
+ term->termstate = TOPLEVEL;
break;
case 'W': /* word-set */
- termstate = SEEN_OSC_W;
- osc_w = TRUE;
+ term->termstate = SEEN_OSC_W;
+ term->osc_w = TRUE;
break;
case '0':
case '1':
case '7':
case '8':
case '9':
- esc_args[0] = 10 * esc_args[0] + c - '0';
+ term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
break;
case 'L':
/*
* Grotty hack to support xterm and DECterm title
* sequences concurrently.
*/
- if (esc_args[0] == 2) {
- esc_args[0] = 1;
+ if (term->esc_args[0] == 2) {
+ term->esc_args[0] = 1;
break;
}
/* else fall through */
default:
- termstate = OSC_STRING;
- osc_strlen = 0;
+ term->termstate = OSC_STRING;
+ term->osc_strlen = 0;
}
break;
case OSC_STRING:
*
* -- RDB
*/
- if (c == '\n' || c == '\r') {
- termstate = TOPLEVEL;
+ if (c == '\012' || c == '\015') {
+ term->termstate = TOPLEVEL;
} else if (c == 0234 || c == '\007') {
/*
* These characters terminate the string; ST and BEL
* mode unless it is followed by \, in which case it is
* synonymous with ST in the first place.
*/
- do_osc();
- termstate = TOPLEVEL;
+ do_osc(term);
+ term->termstate = TOPLEVEL;
} else if (c == '\033')
- termstate = OSC_MAYBE_ST;
- else if (osc_strlen < OSC_STR_MAX)
- osc_string[osc_strlen++] = c;
+ term->termstate = OSC_MAYBE_ST;
+ else if (term->osc_strlen < OSC_STR_MAX)
+ term->osc_string[term->osc_strlen++] = (char)c;
break;
case SEEN_OSC_P:
{
- int max = (osc_strlen == 0 ? 21 : 16);
+ int max = (term->osc_strlen == 0 ? 21 : 15);
int val;
- if (c >= '0' && c <= '9')
+ if ((int)c >= '0' && (int)c <= '9')
val = c - '0';
- else if (c >= 'A' && c <= 'A' + max - 10)
+ else if ((int)c >= 'A' && (int)c <= 'A' + max - 10)
val = c - 'A' + 10;
- else if (c >= 'a' && c <= 'a' + max - 10)
+ else if ((int)c >= 'a' && (int)c <= 'a' + max - 10)
val = c - 'a' + 10;
else {
- termstate = TOPLEVEL;
+ term->termstate = TOPLEVEL;
break;
}
- osc_string[osc_strlen++] = val;
- if (osc_strlen >= 7) {
- palette_set(osc_string[0],
- osc_string[1] * 16 + osc_string[2],
- osc_string[3] * 16 + osc_string[4],
- osc_string[5] * 16 + osc_string[6]);
- term_invalidate();
- termstate = TOPLEVEL;
+ term->osc_string[term->osc_strlen++] = val;
+ if (term->osc_strlen >= 7) {
+ palette_set(term->frontend, term->osc_string[0],
+ term->osc_string[1] * 16 + term->osc_string[2],
+ term->osc_string[3] * 16 + term->osc_string[4],
+ term->osc_string[5] * 16 + term->osc_string[6]);
+ term_invalidate(term);
+ term->termstate = TOPLEVEL;
}
}
break;
case '7':
case '8':
case '9':
- esc_args[0] = 10 * esc_args[0] + c - '0';
+ term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
break;
default:
- termstate = OSC_STRING;
- osc_strlen = 0;
+ term->termstate = OSC_STRING;
+ term->osc_strlen = 0;
}
break;
case VT52_ESC:
- termstate = TOPLEVEL;
- seen_disp_event = TRUE;
+ term->termstate = TOPLEVEL;
+ seen_disp_event(term);
switch (c) {
case 'A':
- move(curs.x, curs.y - 1, 1);
+ move(term, term->curs.x, term->curs.y - 1, 1);
break;
case 'B':
- move(curs.x, curs.y + 1, 1);
+ move(term, term->curs.x, term->curs.y + 1, 1);
break;
case 'C':
- move(curs.x + 1, curs.y, 1);
+ move(term, term->curs.x + 1, term->curs.y, 1);
break;
case 'D':
- move(curs.x - 1, curs.y, 1);
+ move(term, term->curs.x - 1, term->curs.y, 1);
break;
/*
* From the VT100 Manual
*
*/
case 'F':
- cset_attr[cset = 0] = ATTR_LINEDRW;
+ term->cset_attr[term->cset = 0] = CSET_LINEDRW;
break;
case 'G':
- cset_attr[cset = 0] = ATTR_ASCII;
+ term->cset_attr[term->cset = 0] = CSET_ASCII;
break;
case 'H':
- move(0, 0, 0);
+ move(term, 0, 0, 0);
break;
case 'I':
- if (curs.y == 0)
- scroll(0, rows - 1, -1, TRUE);
- else if (curs.y > 0)
- curs.y--;
- fix_cpos;
- wrapnext = FALSE;
+ if (term->curs.y == 0)
+ scroll(term, 0, term->rows - 1, -1, TRUE);
+ else if (term->curs.y > 0)
+ term->curs.y--;
+ term->wrapnext = FALSE;
break;
case 'J':
- erase_lots(FALSE, FALSE, TRUE);
- disptop = 0;
+ erase_lots(term, FALSE, FALSE, TRUE);
+ term->disptop = 0;
break;
case 'K':
- erase_lots(TRUE, FALSE, TRUE);
+ erase_lots(term, TRUE, FALSE, TRUE);
break;
#if 0
case 'V':
break;
#endif
case 'Y':
- termstate = VT52_Y1;
+ term->termstate = VT52_Y1;
break;
case 'Z':
- ldisc_send("\033/Z", 3, 0);
+ if (term->ldisc)
+ ldisc_send(term->ldisc, "\033/Z", 3, 0);
break;
case '=':
- app_keypad_keys = TRUE;
+ term->app_keypad_keys = TRUE;
break;
case '>':
- app_keypad_keys = FALSE;
+ term->app_keypad_keys = FALSE;
break;
case '<':
/* XXX This should switch to VT100 mode not current or default
* VT mode. But this will only have effect in a VT220+
* emulation.
*/
- vt52_mode = FALSE;
- blink_is_real = cfg.blinktext;
+ term->vt52_mode = FALSE;
+ term->blink_is_real = term->blinktext;
+ term_schedule_tblink(term);
break;
#if 0
case '^':
#ifdef VT52_PLUS
case 'E':
/* compatibility(ATARI) */
- move(0, 0, 0);
- erase_lots(FALSE, FALSE, TRUE);
- disptop = 0;
+ move(term, 0, 0, 0);
+ erase_lots(term, FALSE, FALSE, TRUE);
+ term->disptop = 0;
break;
case 'L':
/* compatibility(ATARI) */
- if (curs.y <= marg_b)
- scroll(curs.y, marg_b, -1, FALSE);
+ if (term->curs.y <= term->marg_b)
+ scroll(term, term->curs.y, term->marg_b, -1, FALSE);
break;
case 'M':
/* compatibility(ATARI) */
- if (curs.y <= marg_b)
- scroll(curs.y, marg_b, 1, TRUE);
+ if (term->curs.y <= term->marg_b)
+ scroll(term, term->curs.y, term->marg_b, 1, TRUE);
break;
case 'b':
/* compatibility(ATARI) */
- termstate = VT52_FG;
+ term->termstate = VT52_FG;
break;
case 'c':
/* compatibility(ATARI) */
- termstate = VT52_BG;
+ term->termstate = VT52_BG;
break;
case 'd':
/* compatibility(ATARI) */
- erase_lots(FALSE, TRUE, FALSE);
- disptop = 0;
+ erase_lots(term, FALSE, TRUE, FALSE);
+ term->disptop = 0;
break;
case 'e':
/* compatibility(ATARI) */
- cursor_on = TRUE;
+ term->cursor_on = TRUE;
break;
case 'f':
/* compatibility(ATARI) */
- cursor_on = FALSE;
+ term->cursor_on = FALSE;
break;
/* case 'j': Save cursor position - broken on ST */
/* case 'k': Restore cursor position */
case 'l':
/* compatibility(ATARI) */
- erase_lots(TRUE, TRUE, TRUE);
- curs.x = 0;
- wrapnext = FALSE;
- fix_cpos;
+ erase_lots(term, TRUE, TRUE, TRUE);
+ term->curs.x = 0;
+ term->wrapnext = FALSE;
break;
case 'o':
/* compatibility(ATARI) */
- erase_lots(TRUE, TRUE, FALSE);
+ erase_lots(term, TRUE, TRUE, FALSE);
break;
case 'p':
/* compatibility(ATARI) */
- curr_attr |= ATTR_REVERSE;
+ term->curr_attr |= ATTR_REVERSE;
break;
case 'q':
/* compatibility(ATARI) */
- curr_attr &= ~ATTR_REVERSE;
+ term->curr_attr &= ~ATTR_REVERSE;
break;
case 'v': /* wrap Autowrap on - Wyse style */
/* compatibility(ATARI) */
- wrap = 1;
+ term->wrap = 1;
break;
case 'w': /* Autowrap off */
/* compatibility(ATARI) */
- wrap = 0;
+ term->wrap = 0;
break;
case 'R':
/* compatibility(OTHER) */
- vt52_bold = FALSE;
- curr_attr = ATTR_DEFAULT;
- if (use_bce)
- erase_char = (' ' | ATTR_ASCII |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ term->vt52_bold = FALSE;
+ term->curr_attr = ATTR_DEFAULT;
+ set_erase_char(term);
break;
case 'S':
/* compatibility(VI50) */
- curr_attr |= ATTR_UNDER;
+ term->curr_attr |= ATTR_UNDER;
break;
case 'W':
/* compatibility(VI50) */
- curr_attr &= ~ATTR_UNDER;
+ term->curr_attr &= ~ATTR_UNDER;
break;
case 'U':
/* compatibility(VI50) */
- vt52_bold = TRUE;
- curr_attr |= ATTR_BOLD;
+ term->vt52_bold = TRUE;
+ term->curr_attr |= ATTR_BOLD;
break;
case 'T':
/* compatibility(VI50) */
- vt52_bold = FALSE;
- curr_attr &= ~ATTR_BOLD;
+ term->vt52_bold = FALSE;
+ term->curr_attr &= ~ATTR_BOLD;
break;
#endif
}
break;
case VT52_Y1:
- termstate = VT52_Y2;
- move(curs.x, c - ' ', 0);
+ term->termstate = VT52_Y2;
+ move(term, term->curs.x, c - ' ', 0);
break;
case VT52_Y2:
- termstate = TOPLEVEL;
- move(c - ' ', curs.y, 0);
+ term->termstate = TOPLEVEL;
+ move(term, c - ' ', term->curs.y, 0);
break;
#ifdef VT52_PLUS
case VT52_FG:
- termstate = TOPLEVEL;
- curr_attr &= ~ATTR_FGMASK;
- curr_attr &= ~ATTR_BOLD;
- curr_attr |= (c & 0x7) << ATTR_FGSHIFT;
- if ((c & 0x8) || vt52_bold)
- curr_attr |= ATTR_BOLD;
-
- if (use_bce)
- erase_char = (' ' | ATTR_ASCII |
- (curr_attr & (ATTR_FGMASK | ATTR_BGMASK)));
+ term->termstate = TOPLEVEL;
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr &= ~ATTR_BOLD;
+ term->curr_attr |= (c & 0xF) << ATTR_FGSHIFT;
+ set_erase_char(term);
break;
case VT52_BG:
- termstate = TOPLEVEL;
- curr_attr &= ~ATTR_BGMASK;
- curr_attr &= ~ATTR_BLINK;
- curr_attr |= (c & 0x7) << ATTR_BGSHIFT;
-
- /* Note: bold background */
- if (c & 0x8)
- curr_attr |= ATTR_BLINK;
-
- if (use_bce)
- erase_char = (' ' | ATTR_ASCII |
- (curr_attr & (ATTR_FGMASK | ATTR_BGMASK)));
+ term->termstate = TOPLEVEL;
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr &= ~ATTR_BLINK;
+ term->curr_attr |= (c & 0xF) << ATTR_BGSHIFT;
+ set_erase_char(term);
break;
#endif
default: break; /* placate gcc warning about enum use */
}
- if (selstate != NO_SELECTION) {
- pos cursplus = curs;
+ if (term->selstate != NO_SELECTION) {
+ pos cursplus = term->curs;
incpos(cursplus);
- check_selection(curs, cursplus);
+ check_selection(term, term->curs, cursplus);
}
}
- term_print_flush();
+ term_print_flush(term);
+ if (term->logflush)
+ logflush(term->logctx);
}
-#if 0
/*
- * Compare two lines to determine whether they are sufficiently
- * alike to scroll-optimise one to the other. Return the degree of
- * similarity.
+ * To prevent having to run the reasonably tricky bidi algorithm
+ * too many times, we maintain a cache of the last lineful of data
+ * fed to the algorithm on each line of the display.
*/
-static int linecmp(unsigned long *a, unsigned long *b)
+static int term_bidi_cache_hit(Terminal *term, int line,
+ termchar *lbefore, int width)
{
- int i, n;
+ int i;
+
+ if (!term->pre_bidi_cache)
+ return FALSE; /* cache doesn't even exist yet! */
+
+ if (line >= term->bidi_cache_size)
+ return FALSE; /* cache doesn't have this many lines */
+
+ if (!term->pre_bidi_cache[line].chars)
+ return FALSE; /* cache doesn't contain _this_ line */
- for (i = n = 0; i < cols; i++)
- n += (*a++ == *b++);
- return n;
+ if (term->pre_bidi_cache[line].width != width)
+ return FALSE; /* line is wrong width */
+
+ for (i = 0; i < width; i++)
+ if (!termchars_equal(term->pre_bidi_cache[line].chars+i, lbefore+i))
+ return FALSE; /* line doesn't match cache */
+
+ return TRUE; /* it didn't match. */
+}
+
+static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore,
+ termchar *lafter, bidi_char *wcTo,
+ int width, int size)
+{
+ int i;
+
+ if (!term->pre_bidi_cache || term->bidi_cache_size <= line) {
+ int j = term->bidi_cache_size;
+ term->bidi_cache_size = line+1;
+ term->pre_bidi_cache = sresize(term->pre_bidi_cache,
+ term->bidi_cache_size,
+ struct bidi_cache_entry);
+ term->post_bidi_cache = sresize(term->post_bidi_cache,
+ term->bidi_cache_size,
+ struct bidi_cache_entry);
+ while (j < term->bidi_cache_size) {
+ term->pre_bidi_cache[j].chars =
+ term->post_bidi_cache[j].chars = NULL;
+ term->pre_bidi_cache[j].width =
+ term->post_bidi_cache[j].width = -1;
+ term->pre_bidi_cache[j].forward =
+ term->post_bidi_cache[j].forward = NULL;
+ term->pre_bidi_cache[j].backward =
+ term->post_bidi_cache[j].backward = NULL;
+ j++;
+ }
+ }
+
+ sfree(term->pre_bidi_cache[line].chars);
+ sfree(term->post_bidi_cache[line].chars);
+ sfree(term->post_bidi_cache[line].forward);
+ sfree(term->post_bidi_cache[line].backward);
+
+ term->pre_bidi_cache[line].width = width;
+ term->pre_bidi_cache[line].chars = snewn(size, termchar);
+ term->post_bidi_cache[line].width = width;
+ term->post_bidi_cache[line].chars = snewn(size, termchar);
+ term->post_bidi_cache[line].forward = snewn(width, int);
+ term->post_bidi_cache[line].backward = snewn(width, int);
+
+ memcpy(term->pre_bidi_cache[line].chars, lbefore, size * TSIZE);
+ memcpy(term->post_bidi_cache[line].chars, lafter, size * TSIZE);
+ memset(term->post_bidi_cache[line].forward, 0, width * sizeof(int));
+ memset(term->post_bidi_cache[line].backward, 0, width * sizeof(int));
+
+ for (i = 0; i < width; i++) {
+ int p = wcTo[i].index;
+
+ assert(0 <= p && p < width);
+
+ term->post_bidi_cache[line].backward[i] = p;
+ term->post_bidi_cache[line].forward[p] = i;
+ }
+}
+
+/*
+ * Prepare the bidi information for a screen line. Returns the
+ * transformed list of termchars, or NULL if no transformation at
+ * all took place (because bidi is disabled). If return was
+ * non-NULL, auxiliary information such as the forward and reverse
+ * mappings of permutation position are available in
+ * term->post_bidi_cache[scr_y].*.
+ */
+static termchar *term_bidi_line(Terminal *term, struct termline *ldata,
+ int scr_y)
+{
+ termchar *lchars;
+ int it;
+
+ /* Do Arabic shaping and bidi. */
+ if(!term->bidi || !term->arabicshaping) {
+
+ if (!term_bidi_cache_hit(term, scr_y, ldata->chars, term->cols)) {
+
+ if (term->wcFromTo_size < term->cols) {
+ term->wcFromTo_size = term->cols;
+ term->wcFrom = sresize(term->wcFrom, term->wcFromTo_size,
+ bidi_char);
+ term->wcTo = sresize(term->wcTo, term->wcFromTo_size,
+ bidi_char);
+ }
+
+ for(it=0; it<term->cols ; it++)
+ {
+ unsigned long uc = (ldata->chars[it].chr);
+
+ switch (uc & CSET_MASK) {
+ case CSET_LINEDRW:
+ if (!term->rawcnp) {
+ uc = term->ucsdata->unitab_xterm[uc & 0xFF];
+ break;
+ }
+ case CSET_ASCII:
+ uc = term->ucsdata->unitab_line[uc & 0xFF];
+ break;
+ case CSET_SCOACS:
+ uc = term->ucsdata->unitab_scoacs[uc&0xFF];
+ break;
+ }
+ switch (uc & CSET_MASK) {
+ case CSET_ACP:
+ uc = term->ucsdata->unitab_font[uc & 0xFF];
+ break;
+ case CSET_OEMCP:
+ uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
+ break;
+ }
+
+ term->wcFrom[it].origwc = term->wcFrom[it].wc =
+ (unsigned int)uc;
+ term->wcFrom[it].index = it;
+ }
+
+ if(!term->bidi)
+ do_bidi(term->wcFrom, term->cols);
+
+ /* this is saved iff done from inside the shaping */
+ if(!term->bidi && term->arabicshaping)
+ for(it=0; it<term->cols; it++)
+ term->wcTo[it] = term->wcFrom[it];
+
+ if(!term->arabicshaping)
+ do_shape(term->wcFrom, term->wcTo, term->cols);
+
+ if (term->ltemp_size < ldata->size) {
+ term->ltemp_size = ldata->size;
+ term->ltemp = sresize(term->ltemp, term->ltemp_size,
+ termchar);
+ }
+
+ memcpy(term->ltemp, ldata->chars, ldata->size * TSIZE);
+
+ for(it=0; it<term->cols ; it++)
+ {
+ term->ltemp[it] = ldata->chars[term->wcTo[it].index];
+ if (term->ltemp[it].cc_next)
+ term->ltemp[it].cc_next -=
+ it - term->wcTo[it].index;
+
+ if (term->wcTo[it].origwc != term->wcTo[it].wc)
+ term->ltemp[it].chr = term->wcTo[it].wc;
+ }
+ term_bidi_cache_store(term, scr_y, ldata->chars,
+ term->ltemp, term->wcTo,
+ term->cols, ldata->size);
+
+ lchars = term->ltemp;
+ } else {
+ lchars = term->post_bidi_cache[scr_y].chars;
+ }
+ } else {
+ lchars = NULL;
+ }
+
+ return lchars;
}
-#endif
/*
* Given a context, update the window. Out of paranoia, we don't
* allow WM_PAINT responses to do scrolling optimisations.
*/
-static void do_paint(Context ctx, int may_optimise)
+static void do_paint(Terminal *term, Context ctx, int may_optimise)
{
- int i, j, our_curs_y;
- unsigned long rv, cursor;
+ int i, j, our_curs_y, our_curs_x;
+ int rv, cursor;
pos scrpos;
- char ch[1024];
- long cursor_background = ERASE_CHAR;
- unsigned long ticks;
+ wchar_t *ch;
+ int chlen;
+#ifdef OPTIMISE_SCROLL
+ struct scrollregion *sr;
+#endif /* OPTIMISE_SCROLL */
+ termchar *newline;
- /*
- * Check the visual bell state.
- */
- if (in_vbell) {
- ticks = GETTICKCOUNT();
- if (ticks - vbell_startpoint >= VBELL_TIMEOUT)
- in_vbell = FALSE;
- }
+ chlen = 1024;
+ ch = snewn(chlen, wchar_t);
+
+ newline = snewn(term->cols, termchar);
- rv = (!rvideo ^ !in_vbell ? ATTR_REVERSE : 0);
+ rv = (!term->rvideo ^ !term->in_vbell ? ATTR_REVERSE : 0);
/* Depends on:
* screen array, disptop, scrtop,
* selection, rv,
- * cfg.blinkpc, blink_is_real, tblinker,
- * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
+ * blinkpc, blink_is_real, tblinker,
+ * curs.y, curs.x, cblinker, blink_cur, cursor_on, has_focus, wrapnext
*/
/* Has the cursor position or type changed ? */
- if (cursor_on) {
- if (has_focus) {
- if (blinker || !cfg.blink_cur)
+ if (term->cursor_on) {
+ if (term->has_focus) {
+ if (term->cblinker || !term->blink_cur)
cursor = TATTR_ACTCURS;
else
cursor = 0;
} else
cursor = TATTR_PASCURS;
- if (wrapnext)
+ if (term->wrapnext)
cursor |= TATTR_RIGHTCURS;
} else
cursor = 0;
- our_curs_y = curs.y - disptop;
+ our_curs_y = term->curs.y - term->disptop;
+ {
+ /*
+ * Adjust the cursor position:
+ * - for bidi
+ * - in the case where it's resting on the right-hand half
+ * of a CJK wide character. xterm's behaviour here,
+ * which seems adequate to me, is to display the cursor
+ * covering the _whole_ character, exactly as if it were
+ * one space to the left.
+ */
+ termline *ldata = lineptr(term->curs.y);
+ termchar *lchars;
+
+ our_curs_x = term->curs.x;
+
+ if ( (lchars = term_bidi_line(term, ldata, our_curs_y)) != NULL) {
+ our_curs_x = term->post_bidi_cache[our_curs_y].forward[our_curs_x];
+ } else
+ lchars = ldata->chars;
- if (dispcurs && (curstype != cursor ||
- dispcurs !=
- disptext + our_curs_y * (cols + 1) + curs.x)) {
- if (dispcurs > disptext &&
- (*dispcurs & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- dispcurs[-1] |= ATTR_INVALID;
- if ( (dispcurs[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- dispcurs[1] |= ATTR_INVALID;
- *dispcurs |= ATTR_INVALID;
- curstype = 0;
+ if (our_curs_x > 0 &&
+ lchars[our_curs_x].chr == UCSWIDE)
+ our_curs_x--;
+
+ unlineptr(ldata);
+ }
+
+ /*
+ * If the cursor is not where it was last time we painted, and
+ * its previous position is visible on screen, invalidate its
+ * previous position.
+ */
+ if (term->dispcursy >= 0 &&
+ (term->curstype != cursor ||
+ term->dispcursy != our_curs_y ||
+ term->dispcursx != our_curs_x)) {
+ termchar *dispcurs = term->disptext[term->dispcursy]->chars +
+ term->dispcursx;
+
+ if (term->dispcursx > 0 && dispcurs->chr == UCSWIDE)
+ dispcurs[-1].attr |= ATTR_INVALID;
+ if (term->dispcursx < term->cols-1 && dispcurs[1].chr == UCSWIDE)
+ dispcurs[1].attr |= ATTR_INVALID;
+ dispcurs->attr |= ATTR_INVALID;
+
+ term->curstype = 0;
+ }
+ term->dispcursx = term->dispcursy = -1;
+
+#ifdef OPTIMISE_SCROLL
+ /* Do scrolls */
+ sr = term->scrollhead;
+ while (sr) {
+ struct scrollregion *next = sr->next;
+ do_scroll(ctx, sr->topline, sr->botline, sr->lines);
+ sfree(sr);
+ sr = next;
}
- dispcurs = NULL;
+ term->scrollhead = term->scrolltail = NULL;
+#endif /* OPTIMISE_SCROLL */
/* The normal screen data */
- for (i = 0; i < rows; i++) {
- unsigned long *ldata;
- int lattr;
- int idx, dirty_line, dirty_run, selected;
- unsigned long attr = 0;
- int updated_line = 0;
+ for (i = 0; i < term->rows; i++) {
+ termline *ldata;
+ termchar *lchars;
+ int dirty_line, dirty_run, selected;
+ unsigned long attr = 0, cset = 0;
int start = 0;
int ccount = 0;
int last_run_dirty = 0;
+ int laststart, dirtyrect;
+ int *backward;
- scrpos.y = i + disptop;
+ scrpos.y = i + term->disptop;
ldata = lineptr(scrpos.y);
- lattr = (ldata[cols] & LATTR_MODE);
- idx = i * (cols + 1);
- dirty_run = dirty_line = (ldata[cols] != disptext[idx + cols]);
- disptext[idx + cols] = ldata[cols];
+ /* Do Arabic shaping and bidi. */
+ lchars = term_bidi_line(term, ldata, i);
+ if (lchars) {
+ backward = term->post_bidi_cache[i].backward;
+ } else {
+ lchars = ldata->chars;
+ backward = NULL;
+ }
- for (j = 0; j < cols; j++, idx++) {
+ /*
+ * First loop: work along the line deciding what we want
+ * each character cell to look like.
+ */
+ for (j = 0; j < term->cols; j++) {
unsigned long tattr, tchar;
- unsigned long *d = ldata + j;
- int break_run;
- scrpos.x = j;
+ termchar *d = lchars + j;
+ scrpos.x = backward ? backward[j] : j;
+
+ tchar = d->chr;
+ tattr = d->attr;
+
+ if (!term->ansi_colour)
+ tattr = (tattr & ~(ATTR_FGMASK | ATTR_BGMASK)) |
+ ATTR_DEFFG | ATTR_DEFBG;
+
+ if (!term->xterm_256_colour) {
+ int colour;
+ colour = (tattr & ATTR_FGMASK) >> ATTR_FGSHIFT;
+ if (colour >= 16 && colour < 256)
+ tattr = (tattr &~ ATTR_FGMASK) | ATTR_DEFFG;
+ colour = (tattr & ATTR_BGMASK) >> ATTR_BGSHIFT;
+ if (colour >= 16 && colour < 256)
+ tattr = (tattr &~ ATTR_BGMASK) | ATTR_DEFBG;
+ }
- tchar = (*d & (CHAR_MASK | CSET_MASK));
- tattr = (*d & (ATTR_MASK ^ CSET_MASK));
switch (tchar & CSET_MASK) {
- case ATTR_ASCII:
- tchar = unitab_line[tchar & 0xFF];
+ case CSET_ASCII:
+ tchar = term->ucsdata->unitab_line[tchar & 0xFF];
break;
- case ATTR_LINEDRW:
- tchar = unitab_xterm[tchar & 0xFF];
+ case CSET_LINEDRW:
+ tchar = term->ucsdata->unitab_xterm[tchar & 0xFF];
break;
- case ATTR_SCOACS:
- tchar = unitab_scoacs[tchar&0xFF];
+ case CSET_SCOACS:
+ tchar = term->ucsdata->unitab_scoacs[tchar&0xFF];
break;
}
- tattr |= (tchar & CSET_MASK);
- tchar &= CHAR_MASK;
- if ((d[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- tattr |= ATTR_WIDE;
+ if (j < term->cols-1 && d[1].chr == UCSWIDE)
+ tattr |= ATTR_WIDE;
/* Video reversing things */
- if (seltype == LEXICOGRAPHIC)
- selected = posle(selstart, scrpos) && poslt(scrpos, selend);
- else
- selected = posPle(selstart, scrpos) && posPlt(scrpos, selend);
+ if (term->selstate == DRAGGING || term->selstate == SELECTED) {
+ if (term->seltype == LEXICOGRAPHIC)
+ selected = (posle(term->selstart, scrpos) &&
+ poslt(scrpos, term->selend));
+ else
+ selected = (posPle(term->selstart, scrpos) &&
+ posPlt(scrpos, term->selend));
+ } else
+ selected = FALSE;
tattr = (tattr ^ rv
^ (selected ? ATTR_REVERSE : 0));
/* 'Real' blinking ? */
- if (blink_is_real && (tattr & ATTR_BLINK)) {
- if (has_focus && tblinker) {
- tchar = ' ';
- tattr &= ~CSET_MASK;
- tattr |= ATTR_ACP;
+ if (term->blink_is_real && (tattr & ATTR_BLINK)) {
+ if (term->has_focus && term->tblinker) {
+ tchar = term->ucsdata->unitab_line[(unsigned char)' '];
}
tattr &= ~ATTR_BLINK;
}
* Check the font we'll _probably_ be using to see if
* the character is wide when we don't want it to be.
*/
- if ((tchar | tattr) != (disptext[idx]& ~ATTR_NARROW)) {
- if ((tattr & ATTR_WIDE) == 0 &&
- CharWidth(ctx, (tchar | tattr) & 0xFFFF) == 2)
+ if (tchar != term->disptext[i]->chars[j].chr ||
+ tattr != (term->disptext[i]->chars[j].attr &~
+ (ATTR_NARROW | DATTR_MASK))) {
+ if ((tattr & ATTR_WIDE) == 0 && char_width(ctx, tchar) == 2)
tattr |= ATTR_NARROW;
- } else if (disptext[idx]&ATTR_NARROW)
+ } else if (term->disptext[i]->chars[j].attr & ATTR_NARROW)
tattr |= ATTR_NARROW;
- /* Cursor here ? Save the 'background' */
- if (i == our_curs_y && j == curs.x) {
- cursor_background = tattr | tchar;
- dispcurs = disptext + idx;
+ if (i == our_curs_y && j == our_curs_x) {
+ tattr |= cursor;
+ term->curstype = cursor;
+ term->dispcursx = j;
+ term->dispcursy = i;
+ }
+
+ /* FULL-TERMCHAR */
+ newline[j].attr = tattr;
+ newline[j].chr = tchar;
+ /* Combining characters are still read from lchars */
+ newline[j].cc_next = 0;
+ }
+
+ /*
+ * Now loop over the line again, noting where things have
+ * changed.
+ *
+ * During this loop, we keep track of where we last saw
+ * DATTR_STARTRUN. Any mismatch automatically invalidates
+ * _all_ of the containing run that was last printed: that
+ * is, any rectangle that was drawn in one go in the
+ * previous update should be either left completely alone
+ * or overwritten in its entirety. This, along with the
+ * expectation that front ends clip all text runs to their
+ * bounding rectangle, should solve any possible problems
+ * with fonts that overflow their character cells.
+ */
+ laststart = 0;
+ dirtyrect = FALSE;
+ for (j = 0; j < term->cols; j++) {
+ if (term->disptext[i]->chars[j].attr & DATTR_STARTRUN) {
+ laststart = j;
+ dirtyrect = FALSE;
+ }
+
+ if (term->disptext[i]->chars[j].chr != newline[j].chr ||
+ (term->disptext[i]->chars[j].attr &~ DATTR_MASK)
+ != newline[j].attr) {
+ int k;
+
+ if (!dirtyrect) {
+ for (k = laststart; k < j; k++)
+ term->disptext[i]->chars[k].attr |= ATTR_INVALID;
+
+ dirtyrect = TRUE;
+ }
}
- if ((disptext[idx] ^ tattr) & ATTR_WIDE)
+ if (dirtyrect)
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
+ }
+
+ /*
+ * Finally, loop once more and actually do the drawing.
+ */
+ dirty_run = dirty_line = (ldata->lattr !=
+ term->disptext[i]->lattr);
+ term->disptext[i]->lattr = ldata->lattr;
+
+ for (j = 0; j < term->cols; j++) {
+ unsigned long tattr, tchar;
+ int break_run, do_copy;
+ termchar *d = lchars + j;
+
+ tattr = newline[j].attr;
+ tchar = newline[j].chr;
+
+ if ((term->disptext[i]->chars[j].attr ^ tattr) & ATTR_WIDE)
dirty_line = TRUE;
- break_run = (tattr != attr || j - start >= sizeof(ch));
+ break_run = ((tattr ^ attr) & term->attr_mask) != 0;
+#ifdef USES_VTLINE_HACK
/* Special hack for VT100 Linedraw glyphs */
- if ((attr & CSET_MASK) == 0x2300 && tchar >= 0xBA
- && tchar <= 0xBD) break_run = TRUE;
+ if ((tchar >= 0x23BA && tchar <= 0x23BD) ||
+ (j > 0 && (newline[j-1].chr >= 0x23BA &&
+ newline[j-1].chr <= 0x23BD)))
+ break_run = TRUE;
+#endif
+
+ /*
+ * Separate out sequences of characters that have the
+ * same CSET, if that CSET is a magic one.
+ */
+ if (CSET_OF(tchar) != cset)
+ break_run = TRUE;
- if (!dbcs_screenfont && !dirty_line) {
- if ((tchar | tattr) == disptext[idx])
+ /*
+ * Break on both sides of any combined-character cell.
+ */
+ if (d->cc_next != 0 ||
+ (j > 0 && d[-1].cc_next != 0))
+ break_run = TRUE;
+
+ if (!term->ucsdata->dbcs_screenfont && !dirty_line) {
+ if (term->disptext[i]->chars[j].chr == tchar &&
+ (term->disptext[i]->chars[j].attr &~ DATTR_MASK) == tattr)
break_run = TRUE;
else if (!dirty_run && ccount == 1)
break_run = TRUE;
if (break_run) {
if ((dirty_run || last_run_dirty) && ccount > 0) {
- do_text(ctx, start, i, ch, ccount, attr, lattr);
- updated_line = 1;
+ do_text(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
+ if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
+ do_cursor(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
}
start = j;
ccount = 0;
attr = tattr;
- if (dbcs_screenfont)
+ cset = CSET_OF(tchar);
+ if (term->ucsdata->dbcs_screenfont)
last_run_dirty = dirty_run;
dirty_run = dirty_line;
}
- if ((tchar | tattr) != disptext[idx])
+ do_copy = FALSE;
+ if (!termchars_equal_override(&term->disptext[i]->chars[j],
+ d, tchar, tattr)) {
+ do_copy = TRUE;
dirty_run = TRUE;
- ch[ccount++] = (char) tchar;
- disptext[idx] = tchar | tattr;
+ }
+
+ if (ccount+2 > chlen) {
+ chlen = ccount + 256;
+ ch = sresize(ch, chlen, wchar_t);
+ }
+
+#ifdef PLATFORM_IS_UTF16
+ if (tchar > 0x10000 && tchar < 0x110000) {
+ ch[ccount++] = (wchar_t) HIGH_SURROGATE_OF(tchar);
+ ch[ccount++] = (wchar_t) LOW_SURROGATE_OF(tchar);
+ } else
+#endif /* PLATFORM_IS_UTF16 */
+ ch[ccount++] = (wchar_t) tchar;
+
+ if (d->cc_next) {
+ termchar *dd = d;
+
+ while (dd->cc_next) {
+ unsigned long schar;
+
+ dd += dd->cc_next;
+
+ schar = dd->chr;
+ switch (schar & CSET_MASK) {
+ case CSET_ASCII:
+ schar = term->ucsdata->unitab_line[schar & 0xFF];
+ break;
+ case CSET_LINEDRW:
+ schar = term->ucsdata->unitab_xterm[schar & 0xFF];
+ break;
+ case CSET_SCOACS:
+ schar = term->ucsdata->unitab_scoacs[schar&0xFF];
+ break;
+ }
+
+ if (ccount+2 > chlen) {
+ chlen = ccount + 256;
+ ch = sresize(ch, chlen, wchar_t);
+ }
+
+#ifdef PLATFORM_IS_UTF16
+ if (schar > 0x10000 && schar < 0x110000) {
+ ch[ccount++] = (wchar_t) HIGH_SURROGATE_OF(schar);
+ ch[ccount++] = (wchar_t) LOW_SURROGATE_OF(schar);
+ } else
+#endif /* PLATFORM_IS_UTF16 */
+ ch[ccount++] = (wchar_t) schar;
+ }
+
+ attr |= TATTR_COMBINING;
+ }
+
+ if (do_copy) {
+ copy_termchar(term->disptext[i], j, d);
+ term->disptext[i]->chars[j].chr = tchar;
+ term->disptext[i]->chars[j].attr = tattr;
+ if (start == j)
+ term->disptext[i]->chars[j].attr |= DATTR_STARTRUN;
+ }
/* If it's a wide char step along to the next one. */
if (tattr & ATTR_WIDE) {
- if (++j < cols) {
- idx++;
+ if (++j < term->cols) {
d++;
- /* Cursor is here ? Ouch! */
- if (i == our_curs_y && j == curs.x) {
- cursor_background = *d;
- dispcurs = disptext + idx;
- }
- if (disptext[idx] != *d)
+ /*
+ * By construction above, the cursor should not
+ * be on the right-hand half of this character.
+ * Ever.
+ */
+ assert(!(i == our_curs_y && j == our_curs_x));
+ if (!termchars_equal(&term->disptext[i]->chars[j], d))
dirty_run = TRUE;
- disptext[idx] = *d;
+ copy_termchar(term->disptext[i], j, d);
}
}
}
if (dirty_run && ccount > 0) {
- do_text(ctx, start, i, ch, ccount, attr, lattr);
- updated_line = 1;
- }
-
- /* Cursor on this line ? (and changed) */
- if (i == our_curs_y && (curstype != cursor || updated_line)) {
- ch[0] = (char) (cursor_background & CHAR_MASK);
- attr = (cursor_background & ATTR_MASK) | cursor;
- do_cursor(ctx, curs.x, i, ch, 1, attr, lattr);
- curstype = cursor;
+ do_text(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
+ if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
+ do_cursor(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
}
- }
-}
-
-/*
- * Flick the switch that says if blinking things should be shown or hidden.
- */
-
-void term_blink(int flg)
-{
- static long last_blink = 0;
- static long last_tblink = 0;
- long now, blink_diff;
- now = GETTICKCOUNT();
- blink_diff = now - last_tblink;
-
- /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
- if (blink_diff < 0 || blink_diff > (TICKSPERSEC * 9 / 20)) {
- last_tblink = now;
- tblinker = !tblinker;
- }
-
- if (flg) {
- blinker = 1;
- last_blink = now;
- return;
+ unlineptr(ldata);
}
- blink_diff = now - last_blink;
-
- /* Make sure the cursor blinks no faster than system blink rate */
- if (blink_diff >= 0 && blink_diff < (long) CURSORBLINK)
- return;
-
- last_blink = now;
- blinker = !blinker;
+ sfree(newline);
+ sfree(ch);
}
/*
* Invalidate the whole screen so it will be repainted in full.
*/
-void term_invalidate(void)
+void term_invalidate(Terminal *term)
{
- int i;
+ int i, j;
+
+ for (i = 0; i < term->rows; i++)
+ for (j = 0; j < term->cols; j++)
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
- for (i = 0; i < rows * (cols + 1); i++)
- disptext[i] = ATTR_INVALID;
+ term_schedule_update(term);
}
/*
* Paint the window in response to a WM_PAINT message.
*/
-void term_paint(Context ctx, int left, int top, int right, int bottom)
+void term_paint(Terminal *term, Context ctx,
+ int left, int top, int right, int bottom, int immediately)
{
int i, j;
if (left < 0) left = 0;
if (top < 0) top = 0;
- if (right >= cols) right = cols-1;
- if (bottom >= rows) bottom = rows-1;
+ if (right >= term->cols) right = term->cols-1;
+ if (bottom >= term->rows) bottom = term->rows-1;
- for (i = top; i <= bottom && i < rows; i++) {
- if ((disptext[i * (cols + 1) + cols] & LATTR_MODE) == LATTR_NORM)
- for (j = left; j <= right && j < cols; j++)
- disptext[i * (cols + 1) + j] = ATTR_INVALID;
+ for (i = top; i <= bottom && i < term->rows; i++) {
+ if ((term->disptext[i]->lattr & LATTR_MODE) == LATTR_NORM)
+ for (j = left; j <= right && j < term->cols; j++)
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
else
- for (j = left / 2; j <= right / 2 + 1 && j < cols; j++)
- disptext[i * (cols + 1) + j] = ATTR_INVALID;
+ for (j = left / 2; j <= right / 2 + 1 && j < term->cols; j++)
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
}
- /* This should happen soon enough, also for some reason it sometimes
- * fails to actually do anything when re-sizing ... painting the wrong
- * window perhaps ?
- */
- if (alt_pressed)
- do_paint (ctx, FALSE);
+ if (immediately) {
+ do_paint (term, ctx, FALSE);
+ } else {
+ term_schedule_update(term);
+ }
}
/*
* to denote it is relative to the end, and 0 to denote that it is
* relative to the current position.
*/
-void term_scroll(int rel, int where)
+void term_scroll(Terminal *term, int rel, int where)
+{
+ int sbtop = -sblines(term);
+#ifdef OPTIMISE_SCROLL
+ int olddisptop = term->disptop;
+ int shift;
+#endif /* OPTIMISE_SCROLL */
+
+ term->disptop = (rel < 0 ? 0 : rel > 0 ? sbtop : term->disptop) + where;
+ if (term->disptop < sbtop)
+ term->disptop = sbtop;
+ if (term->disptop > 0)
+ term->disptop = 0;
+ update_sbar(term);
+#ifdef OPTIMISE_SCROLL
+ shift = (term->disptop - olddisptop);
+ if (shift < term->rows && shift > -term->rows)
+ scroll_display(term, 0, term->rows - 1, shift);
+#endif /* OPTIMISE_SCROLL */
+ term_update(term);
+}
+
+/*
+ * Scroll the scrollback to centre it on the beginning or end of the
+ * current selection, if any.
+ */
+void term_scroll_to_selection(Terminal *term, int which_end)
{
- int sbtop = -count234(scrollback);
+ pos target;
+ int y;
+ int sbtop = -sblines(term);
+
+ if (term->selstate != SELECTED)
+ return;
+ if (which_end)
+ target = term->selend;
+ else
+ target = term->selstart;
+
+ y = target.y - term->rows/2;
+ if (y < sbtop)
+ y = sbtop;
+ else if (y > 0)
+ y = 0;
+ term_scroll(term, -1, y);
+}
- disptop = (rel < 0 ? 0 : rel > 0 ? sbtop : disptop) + where;
- if (disptop < sbtop)
- disptop = sbtop;
- if (disptop > 0)
- disptop = 0;
- update_sbar();
- term_update();
+/*
+ * Helper routine for clipme(): growing buffer.
+ */
+typedef struct {
+ int buflen; /* amount of allocated space in textbuf/attrbuf */
+ int bufpos; /* amount of actual data */
+ wchar_t *textbuf; /* buffer for copied text */
+ wchar_t *textptr; /* = textbuf + bufpos (current insertion point) */
+ int *attrbuf; /* buffer for copied attributes */
+ int *attrptr; /* = attrbuf + bufpos */
+} clip_workbuf;
+
+static void clip_addchar(clip_workbuf *b, wchar_t chr, int attr)
+{
+ if (b->bufpos >= b->buflen) {
+ b->buflen += 128;
+ b->textbuf = sresize(b->textbuf, b->buflen, wchar_t);
+ b->textptr = b->textbuf + b->bufpos;
+ b->attrbuf = sresize(b->attrbuf, b->buflen, int);
+ b->attrptr = b->attrbuf + b->bufpos;
+ }
+ *b->textptr++ = chr;
+ *b->attrptr++ = attr;
+ b->bufpos++;
}
-static void clipme(pos top, pos bottom, int rect)
+static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel)
{
- wchar_t *workbuf;
- wchar_t *wbptr; /* where next char goes within workbuf */
+ clip_workbuf buf;
int old_top_x;
- int wblen = 0; /* workbuf len */
- int buflen; /* amount of memory allocated to workbuf */
+ int attr;
+
+ buf.buflen = 5120;
+ buf.bufpos = 0;
+ buf.textptr = buf.textbuf = snewn(buf.buflen, wchar_t);
+ buf.attrptr = buf.attrbuf = snewn(buf.buflen, int);
- buflen = 5120; /* Default size */
- workbuf = smalloc(buflen * sizeof(wchar_t));
- wbptr = workbuf; /* start filling here */
old_top_x = top.x; /* needed for rect==1 */
while (poslt(top, bottom)) {
int nl = FALSE;
- unsigned long *ldata = lineptr(top.y);
+ termline *ldata = lineptr(top.y);
pos nlpos;
/*
* line...
*/
nlpos.y = top.y;
- nlpos.x = cols;
+ nlpos.x = term->cols;
/*
* ... move it backwards if there's unused space at the end
* because in normal selection mode this means we need a
* newline at the end)...
*/
- if (!(ldata[cols] & LATTR_WRAPPED)) {
- while (((ldata[nlpos.x - 1] & 0xFF) == 0x20 ||
- (DIRECT_CHAR(ldata[nlpos.x - 1]) &&
- (ldata[nlpos.x - 1] & CHAR_MASK) == 0x20))
- && poslt(top, nlpos))
+ if (!(ldata->lattr & LATTR_WRAPPED)) {
+ while (nlpos.x &&
+ IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) &&
+ !ldata->chars[nlpos.x - 1].cc_next &&
+ poslt(top, nlpos))
decpos(nlpos);
if (poslt(nlpos, bottom))
nl = TRUE;
+ } else if (ldata->lattr & LATTR_WRAPPED2) {
+ /* Ignore the last char on the line in a WRAPPED2 line. */
+ decpos(nlpos);
}
/*
sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF));
#else
wchar_t cbuf[16], *p;
- int uc = (ldata[top.x] & 0xFFFF);
- int set, c;
+ int c;
+ int x = top.x;
- if (uc == UCSWIDE) {
+ if (ldata->chars[x].chr == UCSWIDE) {
top.x++;
continue;
}
- switch (uc & CSET_MASK) {
- case ATTR_LINEDRW:
- if (!cfg.rawcnp) {
- uc = unitab_xterm[uc & 0xFF];
+ while (1) {
+ int uc = ldata->chars[x].chr;
+ attr = ldata->chars[x].attr;
+
+ switch (uc & CSET_MASK) {
+ case CSET_LINEDRW:
+ if (!term->rawcnp) {
+ uc = term->ucsdata->unitab_xterm[uc & 0xFF];
+ break;
+ }
+ case CSET_ASCII:
+ uc = term->ucsdata->unitab_line[uc & 0xFF];
+ break;
+ case CSET_SCOACS:
+ uc = term->ucsdata->unitab_scoacs[uc&0xFF];
+ break;
+ }
+ switch (uc & CSET_MASK) {
+ case CSET_ACP:
+ uc = term->ucsdata->unitab_font[uc & 0xFF];
+ break;
+ case CSET_OEMCP:
+ uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
break;
}
- case ATTR_ASCII:
- uc = unitab_line[uc & 0xFF];
- break;
- case ATTR_SCOACS:
- uc = unitab_scoacs[uc&0xFF];
- break;
- }
- switch (uc & CSET_MASK) {
- case ATTR_ACP:
- uc = unitab_font[uc & 0xFF];
- break;
- case ATTR_OEMCP:
- uc = unitab_oemcp[uc & 0xFF];
- break;
- }
- set = (uc & CSET_MASK);
- c = (uc & CHAR_MASK);
- cbuf[0] = uc;
- cbuf[1] = 0;
-
- if (DIRECT_FONT(uc)) {
- if (c >= ' ' && c != 0x7F) {
- unsigned char buf[4];
- WCHAR wbuf[4];
- int rv;
- if (is_dbcs_leadbyte(font_codepage, (BYTE) c)) {
- buf[0] = c;
- buf[1] = (unsigned char) ldata[top.x + 1];
- rv = mb_to_wc(font_codepage, 0, buf, 2, wbuf, 4);
- top.x++;
- } else {
- buf[0] = c;
- rv = mb_to_wc(font_codepage, 0, buf, 1, wbuf, 4);
- }
+ c = (uc & ~CSET_MASK);
+#ifdef PLATFORM_IS_UTF16
+ if (uc > 0x10000 && uc < 0x110000) {
+ cbuf[0] = 0xD800 | ((uc - 0x10000) >> 10);
+ cbuf[1] = 0xDC00 | ((uc - 0x10000) & 0x3FF);
+ cbuf[2] = 0;
+ } else
+#endif
+ {
+ cbuf[0] = uc;
+ cbuf[1] = 0;
+ }
+
+ if (DIRECT_FONT(uc)) {
+ if (c >= ' ' && c != 0x7F) {
+ char buf[4];
+ WCHAR wbuf[4];
+ int rv;
+ if (is_dbcs_leadbyte(term->ucsdata->font_codepage, (BYTE) c)) {
+ buf[0] = c;
+ buf[1] = (char) (0xFF & ldata->chars[top.x + 1].chr);
+ rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 2, wbuf, 4);
+ top.x++;
+ } else {
+ buf[0] = c;
+ rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 1, wbuf, 4);
+ }
- if (rv > 0) {
- memcpy(cbuf, wbuf, rv * sizeof(wchar_t));
- cbuf[rv] = 0;
+ if (rv > 0) {
+ memcpy(cbuf, wbuf, rv * sizeof(wchar_t));
+ cbuf[rv] = 0;
+ }
}
}
- }
#endif
- for (p = cbuf; *p; p++) {
- /* Enough overhead for trailing NL and nul */
- if (wblen >= buflen - 16) {
- workbuf =
- srealloc(workbuf,
- sizeof(wchar_t) * (buflen += 100));
- wbptr = workbuf + wblen;
- }
- wblen++;
- *wbptr++ = *p;
+ for (p = cbuf; *p; p++)
+ clip_addchar(&buf, *p, attr);
+
+ if (ldata->chars[x].cc_next)
+ x += ldata->chars[x].cc_next;
+ else
+ break;
}
top.x++;
}
if (nl) {
int i;
- for (i = 0; i < sel_nl_sz; i++) {
- wblen++;
- *wbptr++ = sel_nl[i];
- }
+ for (i = 0; i < sel_nl_sz; i++)
+ clip_addchar(&buf, sel_nl[i], 0);
}
top.y++;
top.x = rect ? old_top_x : 0;
+
+ unlineptr(ldata);
}
#if SELECTION_NUL_TERMINATED
- wblen++;
- *wbptr++ = 0;
+ clip_addchar(&buf, 0, 0);
#endif
- write_clip(workbuf, wblen, FALSE); /* transfer to clipboard */
- if (buflen > 0) /* indicates we allocated this buffer */
- sfree(workbuf);
+ /* Finally, transfer all that to the clipboard. */
+ write_clip(term->frontend, buf.textbuf, buf.attrbuf, buf.bufpos, desel);
+ sfree(buf.textbuf);
+ sfree(buf.attrbuf);
}
-void term_copyall(void)
+void term_copyall(Terminal *term)
{
pos top;
- top.y = -count234(scrollback);
+ pos bottom;
+ tree234 *screen = term->screen;
+ top.y = -sblines(term);
top.x = 0;
- clipme(top, curs, 0);
+ bottom.y = find_last_nonempty_line(term, screen);
+ bottom.x = term->cols;
+ clipme(term, top, bottom, 0, TRUE);
}
/*
- * The wordness array is mainly for deciding the disposition of the US-ASCII
- * characters.
+ * The wordness array is mainly for deciding the disposition of the
+ * US-ASCII characters.
*/
-static int wordtype(int uc)
+static int wordtype(Terminal *term, int uc)
{
- static struct {
+ struct ucsword {
int start, end, ctype;
- } *wptr, ucs_words[] = {
+ };
+ static const struct ucsword ucs_words[] = {
{
128, 160, 0}, {
161, 191, 1}, {
{
0, 0, 0}
};
-
- uc &= (CSET_MASK | CHAR_MASK);
+ const struct ucsword *wptr;
switch (uc & CSET_MASK) {
- case ATTR_LINEDRW:
- uc = unitab_xterm[uc & 0xFF];
+ case CSET_LINEDRW:
+ uc = term->ucsdata->unitab_xterm[uc & 0xFF];
break;
- case ATTR_ASCII:
- uc = unitab_line[uc & 0xFF];
+ case CSET_ASCII:
+ uc = term->ucsdata->unitab_line[uc & 0xFF];
break;
- case ATTR_SCOACS:
- uc = unitab_scoacs[uc&0xFF];
+ case CSET_SCOACS:
+ uc = term->ucsdata->unitab_scoacs[uc&0xFF];
break;
}
switch (uc & CSET_MASK) {
- case ATTR_ACP:
- uc = unitab_font[uc & 0xFF];
+ case CSET_ACP:
+ uc = term->ucsdata->unitab_font[uc & 0xFF];
break;
- case ATTR_OEMCP:
- uc = unitab_oemcp[uc & 0xFF];
+ case CSET_OEMCP:
+ uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
break;
}
- /* For DBCS font's I can't do anything usefull. Even this will sometimes
+ /* For DBCS fonts I can't do anything useful. Even this will sometimes
* fail as there's such a thing as a double width space. :-(
*/
- if (dbcs_screenfont && font_codepage == line_codepage)
+ if (term->ucsdata->dbcs_screenfont &&
+ term->ucsdata->font_codepage == term->ucsdata->line_codepage)
return (uc != ' ');
if (uc < 0x80)
- return wordness[uc];
+ return term->wordness[uc];
for (wptr = ucs_words; wptr->start; wptr++) {
if (uc >= wptr->start && uc <= wptr->end)
/*
* Spread the selection outwards according to the selection mode.
*/
-static pos sel_spread_half(pos p, int dir)
+static pos sel_spread_half(Terminal *term, pos p, int dir)
{
- unsigned long *ldata;
+ termline *ldata;
short wvalue;
- int topy = -count234(scrollback);
+ int topy = -sblines(term);
ldata = lineptr(p.y);
- switch (selmode) {
+ switch (term->selmode) {
case SM_CHAR:
/*
* In this mode, every character is a separate unit, except
* for runs of spaces at the end of a non-wrapping line.
*/
- if (!(ldata[cols] & LATTR_WRAPPED)) {
- unsigned long *q = ldata + cols;
- while (q > ldata && (q[-1] & CHAR_MASK) == 0x20)
+ if (!(ldata->lattr & LATTR_WRAPPED)) {
+ termchar *q = ldata->chars + term->cols;
+ while (q > ldata->chars &&
+ IS_SPACE_CHR(q[-1].chr) && !q[-1].cc_next)
q--;
- if (q == ldata + cols)
+ if (q == ldata->chars + term->cols)
q--;
- if (p.x >= q - ldata)
- p.x = (dir == -1 ? q - ldata : cols - 1);
+ if (p.x >= q - ldata->chars)
+ p.x = (dir == -1 ? q - ldata->chars : term->cols - 1);
}
break;
case SM_WORD:
* In this mode, the units are maximal runs of characters
* whose `wordness' has the same value.
*/
- wvalue = wordtype(ldata[p.x]);
+ wvalue = wordtype(term, UCSGET(ldata->chars, p.x));
if (dir == +1) {
while (1) {
- if (p.x < cols-1) {
- if (wordtype(ldata[p.x + 1]) == wvalue)
+ int maxcols = (ldata->lattr & LATTR_WRAPPED2 ?
+ term->cols-1 : term->cols);
+ if (p.x < maxcols-1) {
+ if (wordtype(term, UCSGET(ldata->chars, p.x+1)) == wvalue)
p.x++;
else
break;
} else {
- if (ldata[cols] & LATTR_WRAPPED) {
- unsigned long *ldata2;
+ if (p.y+1 < term->rows &&
+ (ldata->lattr & LATTR_WRAPPED)) {
+ termline *ldata2;
ldata2 = lineptr(p.y+1);
- if (wordtype(ldata2[0]) == wvalue) {
+ if (wordtype(term, UCSGET(ldata2->chars, 0))
+ == wvalue) {
p.x = 0;
p.y++;
+ unlineptr(ldata);
ldata = ldata2;
- } else
+ } else {
+ unlineptr(ldata2);
break;
+ }
} else
break;
}
} else {
while (1) {
if (p.x > 0) {
- if (wordtype(ldata[p.x - 1]) == wvalue)
+ if (wordtype(term, UCSGET(ldata->chars, p.x-1)) == wvalue)
p.x--;
else
break;
} else {
- unsigned long *ldata2;
+ termline *ldata2;
+ int maxcols;
if (p.y <= topy)
break;
ldata2 = lineptr(p.y-1);
- if ((ldata2[cols] & LATTR_WRAPPED) &&
- wordtype(ldata2[cols-1]) == wvalue) {
- p.x = cols-1;
- p.y--;
- ldata = ldata2;
+ maxcols = (ldata2->lattr & LATTR_WRAPPED2 ?
+ term->cols-1 : term->cols);
+ if (ldata2->lattr & LATTR_WRAPPED) {
+ if (wordtype(term, UCSGET(ldata2->chars, maxcols-1))
+ == wvalue) {
+ p.x = maxcols-1;
+ p.y--;
+ unlineptr(ldata);
+ ldata = ldata2;
+ } else {
+ unlineptr(ldata2);
+ break;
+ }
} else
break;
}
/*
* In this mode, every line is a unit.
*/
- p.x = (dir == -1 ? 0 : cols - 1);
+ p.x = (dir == -1 ? 0 : term->cols - 1);
break;
}
+
+ unlineptr(ldata);
return p;
}
-static void sel_spread(void)
+static void sel_spread(Terminal *term)
{
- if (seltype == LEXICOGRAPHIC) {
- selstart = sel_spread_half(selstart, -1);
- decpos(selend);
- selend = sel_spread_half(selend, +1);
- incpos(selend);
+ if (term->seltype == LEXICOGRAPHIC) {
+ term->selstart = sel_spread_half(term, term->selstart, -1);
+ decpos(term->selend);
+ term->selend = sel_spread_half(term, term->selend, +1);
+ incpos(term->selend);
}
}
-void term_do_paste(void)
+void term_do_paste(Terminal *term)
{
wchar_t *data;
int len;
- get_clip(&data, &len);
- if (data) {
+ get_clip(term->frontend, &data, &len);
+ if (data && len > 0) {
wchar_t *p, *q;
- if (paste_buffer)
- sfree(paste_buffer);
- paste_pos = paste_hold = paste_len = 0;
- paste_buffer = smalloc(len * sizeof(wchar_t));
+ term_seen_key_event(term); /* pasted data counts */
+
+ if (term->paste_buffer)
+ sfree(term->paste_buffer);
+ term->paste_pos = term->paste_hold = term->paste_len = 0;
+ term->paste_buffer = snewn(len + 12, wchar_t);
+
+ if (term->bracketed_paste) {
+ memcpy(term->paste_buffer, L"\033[200~", 6 * sizeof(wchar_t));
+ term->paste_len += 6;
+ }
p = q = data;
while (p < data + len) {
{
int i;
for (i = 0; i < p - q; i++) {
- paste_buffer[paste_len++] = q[i];
+ term->paste_buffer[term->paste_len++] = q[i];
}
}
if (p <= data + len - sel_nl_sz &&
!memcmp(p, sel_nl, sizeof(sel_nl))) {
- paste_buffer[paste_len++] = '\r';
+ term->paste_buffer[term->paste_len++] = '\015';
p += sel_nl_sz;
}
q = p;
}
+ if (term->bracketed_paste) {
+ memcpy(term->paste_buffer + term->paste_len,
+ L"\033[201~", 6 * sizeof(wchar_t));
+ term->paste_len += 6;
+ }
+
/* Assume a small paste will be OK in one go. */
- if (paste_len < 256) {
- luni_send(paste_buffer, paste_len, 0);
- if (paste_buffer)
- sfree(paste_buffer);
- paste_buffer = 0;
- paste_pos = paste_hold = paste_len = 0;
+ if (term->paste_len < 256) {
+ if (term->ldisc)
+ luni_send(term->ldisc, term->paste_buffer, term->paste_len, 0);
+ if (term->paste_buffer)
+ sfree(term->paste_buffer);
+ term->paste_buffer = 0;
+ term->paste_pos = term->paste_hold = term->paste_len = 0;
}
}
- get_clip(NULL, NULL);
+ get_clip(term->frontend, NULL, NULL);
}
-void term_mouse(Mouse_Button b, Mouse_Action a, int x, int y,
- int shift, int ctrl, int alt)
+void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked,
+ Mouse_Action a, int x, int y, int shift, int ctrl, int alt)
{
pos selpoint;
- unsigned long *ldata;
- int raw_mouse = (xterm_mouse &&
- !cfg.no_mouse_rep &&
- !(cfg.mouse_override && shift));
+ termline *ldata;
+ int raw_mouse = (term->xterm_mouse &&
+ !term->no_mouse_rep &&
+ !(term->mouse_override && shift));
int default_seltype;
if (y < 0) {
y = 0;
if (a == MA_DRAG && !raw_mouse)
- term_scroll(0, -1);
+ term_scroll(term, 0, -1);
}
- if (y >= rows) {
- y = rows - 1;
+ if (y >= term->rows) {
+ y = term->rows - 1;
if (a == MA_DRAG && !raw_mouse)
- term_scroll(0, +1);
+ term_scroll(term, 0, +1);
}
if (x < 0) {
if (y > 0) {
- x = cols - 1;
+ x = term->cols - 1;
y--;
} else
x = 0;
}
- if (x >= cols)
- x = cols - 1;
+ if (x >= term->cols)
+ x = term->cols - 1;
- selpoint.y = y + disptop;
- selpoint.x = x;
+ selpoint.y = y + term->disptop;
ldata = lineptr(selpoint.y);
- if ((ldata[cols] & LATTR_MODE) != LATTR_NORM)
- selpoint.x /= 2;
- if (raw_mouse) {
+ if ((ldata->lattr & LATTR_MODE) != LATTR_NORM)
+ x /= 2;
+
+ /*
+ * Transform x through the bidi algorithm to find the _logical_
+ * click point from the physical one.
+ */
+ if (term_bidi_line(term, ldata, y) != NULL) {
+ x = term->post_bidi_cache[y].backward[x];
+ }
+
+ selpoint.x = x;
+ unlineptr(ldata);
+
+ /*
+ * If we're in the middle of a selection operation, we ignore raw
+ * mouse mode until it's done (we must have been not in raw mouse
+ * mode when it started).
+ * This makes use of Shift for selection reliable, and avoids the
+ * host seeing mouse releases for which they never saw corresponding
+ * presses.
+ */
+ if (raw_mouse &&
+ (term->selstate != ABOUT_TO) && (term->selstate != DRAGGING)) {
int encstate = 0, r, c;
- char abuf[16];
- static int is_down = 0;
+ char abuf[32];
+ int len = 0;
- switch (b) {
- case MBT_LEFT:
- encstate = 0x20; /* left button down */
- break;
- case MBT_MIDDLE:
- encstate = 0x21;
- break;
- case MBT_RIGHT:
- encstate = 0x22;
- break;
- case MBT_WHEEL_UP:
- encstate = 0x60;
- break;
- case MBT_WHEEL_DOWN:
- encstate = 0x61;
- break;
- default: break; /* placate gcc warning about enum use */
- }
- switch (a) {
- case MA_DRAG:
- if (xterm_mouse == 1)
- return;
- encstate += 0x20;
- break;
- case MA_RELEASE:
- encstate = 0x23;
- is_down = 0;
- break;
- case MA_CLICK:
- if (is_down == b)
- return;
- is_down = b;
- break;
- default: break; /* placate gcc warning about enum use */
- }
- if (shift)
- encstate += 0x04;
- if (ctrl)
- encstate += 0x10;
- r = y + 33;
- c = x + 33;
+ if (term->ldisc) {
- sprintf(abuf, "\033[M%c%c%c", encstate, c, r);
- ldisc_send(abuf, 6, 0);
+ switch (braw) {
+ case MBT_LEFT:
+ encstate = 0x00; /* left button down */
+ break;
+ case MBT_MIDDLE:
+ encstate = 0x01;
+ break;
+ case MBT_RIGHT:
+ encstate = 0x02;
+ break;
+ case MBT_WHEEL_UP:
+ encstate = 0x40;
+ break;
+ case MBT_WHEEL_DOWN:
+ encstate = 0x41;
+ break;
+ default: break; /* placate gcc warning about enum use */
+ }
+ switch (a) {
+ case MA_DRAG:
+ if (term->xterm_mouse == 1)
+ return;
+ encstate += 0x20;
+ break;
+ case MA_RELEASE:
+ /* If multiple extensions are enabled, the xterm 1006 is used, so it's okay to check for only that */
+ if (!term->xterm_extended_mouse)
+ encstate = 0x03;
+ term->mouse_is_down = 0;
+ break;
+ case MA_CLICK:
+ if (term->mouse_is_down == braw)
+ return;
+ term->mouse_is_down = braw;
+ break;
+ default: break; /* placate gcc warning about enum use */
+ }
+ if (shift)
+ encstate += 0x04;
+ if (ctrl)
+ encstate += 0x10;
+ r = y + 1;
+ c = x + 1;
+
+ /* Check the extensions in decreasing order of preference. Encoding the release event above assumes that 1006 comes first. */
+ if (term->xterm_extended_mouse) {
+ len = sprintf(abuf, "\033[<%d;%d;%d%c", encstate, c, r, a == MA_RELEASE ? 'm' : 'M');
+ } else if (term->urxvt_extended_mouse) {
+ len = sprintf(abuf, "\033[%d;%d;%dM", encstate + 32, c, r);
+ } else if (c <= 223 && r <= 223) {
+ len = sprintf(abuf, "\033[M%c%c%c", encstate + 32, c + 32, r + 32);
+ }
+ ldisc_send(term->ldisc, abuf, len, 0);
+ }
return;
}
- b = translate_button(b);
-
/*
* Set the selection type (rectangular or normal) at the start
* of a selection attempt, from the state of Alt.
*/
- if (!alt ^ !cfg.rect_select)
+ if (!alt ^ !term->rect_select)
default_seltype = RECTANGULAR;
else
default_seltype = LEXICOGRAPHIC;
- if (selstate == NO_SELECTION) {
- seltype = default_seltype;
- }
-
- if (b == MBT_SELECT && a == MA_CLICK) {
- deselect();
- selstate = ABOUT_TO;
- seltype = default_seltype;
- selanchor = selpoint;
- selmode = SM_CHAR;
- } else if (b == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) {
- deselect();
- selmode = (a == MA_2CLK ? SM_WORD : SM_LINE);
- selstate = DRAGGING;
- selstart = selanchor = selpoint;
- selend = selstart;
- incpos(selend);
- sel_spread();
- } else if ((b == MBT_SELECT && a == MA_DRAG) ||
- (b == MBT_EXTEND && a != MA_RELEASE)) {
- if (selstate == ABOUT_TO && poseq(selanchor, selpoint))
+ if (term->selstate == NO_SELECTION) {
+ term->seltype = default_seltype;
+ }
+
+ if (bcooked == MBT_SELECT && a == MA_CLICK) {
+ deselect(term);
+ term->selstate = ABOUT_TO;
+ term->seltype = default_seltype;
+ term->selanchor = selpoint;
+ term->selmode = SM_CHAR;
+ } else if (bcooked == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) {
+ deselect(term);
+ term->selmode = (a == MA_2CLK ? SM_WORD : SM_LINE);
+ term->selstate = DRAGGING;
+ term->selstart = term->selanchor = selpoint;
+ term->selend = term->selstart;
+ incpos(term->selend);
+ sel_spread(term);
+ } else if ((bcooked == MBT_SELECT && a == MA_DRAG) ||
+ (bcooked == MBT_EXTEND && a != MA_RELEASE)) {
+ if (term->selstate == ABOUT_TO && poseq(term->selanchor, selpoint))
return;
- if (b == MBT_EXTEND && a != MA_DRAG && selstate == SELECTED) {
- if (seltype == LEXICOGRAPHIC) {
+ if (bcooked == MBT_EXTEND && a != MA_DRAG &&
+ term->selstate == SELECTED) {
+ if (term->seltype == LEXICOGRAPHIC) {
/*
* For normal selection, we extend by moving
* whichever end of the current selection is closer
* to the mouse.
*/
- if (posdiff(selpoint, selstart) <
- posdiff(selend, selstart) / 2) {
- selanchor = selend;
- decpos(selanchor);
+ if (posdiff(selpoint, term->selstart) <
+ posdiff(term->selend, term->selstart) / 2) {
+ term->selanchor = term->selend;
+ decpos(term->selanchor);
} else {
- selanchor = selstart;
+ term->selanchor = term->selstart;
}
} else {
/*
* _four_ places to put selanchor and selpoint: the
* four corners of the selection.
*/
- if (2*selpoint.x < selstart.x + selend.x)
- selanchor.x = selend.x-1;
+ if (2*selpoint.x < term->selstart.x + term->selend.x)
+ term->selanchor.x = term->selend.x-1;
else
- selanchor.x = selstart.x;
+ term->selanchor.x = term->selstart.x;
- if (2*selpoint.y < selstart.y + selend.y)
- selanchor.y = selend.y;
+ if (2*selpoint.y < term->selstart.y + term->selend.y)
+ term->selanchor.y = term->selend.y;
else
- selanchor.y = selstart.y;
+ term->selanchor.y = term->selstart.y;
}
- selstate = DRAGGING;
+ term->selstate = DRAGGING;
}
- if (selstate != ABOUT_TO && selstate != DRAGGING)
- selanchor = selpoint;
- selstate = DRAGGING;
- if (seltype == LEXICOGRAPHIC) {
+ if (term->selstate != ABOUT_TO && term->selstate != DRAGGING)
+ term->selanchor = selpoint;
+ term->selstate = DRAGGING;
+ if (term->seltype == LEXICOGRAPHIC) {
/*
* For normal selection, we set (selstart,selend) to
* (selpoint,selanchor) in some order.
*/
- if (poslt(selpoint, selanchor)) {
- selstart = selpoint;
- selend = selanchor;
- incpos(selend);
+ if (poslt(selpoint, term->selanchor)) {
+ term->selstart = selpoint;
+ term->selend = term->selanchor;
+ incpos(term->selend);
} else {
- selstart = selanchor;
- selend = selpoint;
- incpos(selend);
+ term->selstart = term->selanchor;
+ term->selend = selpoint;
+ incpos(term->selend);
}
} else {
/*
* interchange x and y coordinates (if the user has
* dragged in the -x and +y directions, or vice versa).
*/
- selstart.x = min(selanchor.x, selpoint.x);
- selend.x = 1+max(selanchor.x, selpoint.x);
- selstart.y = min(selanchor.y, selpoint.y);
- selend.y = max(selanchor.y, selpoint.y);
+ term->selstart.x = min(term->selanchor.x, selpoint.x);
+ term->selend.x = 1+max(term->selanchor.x, selpoint.x);
+ term->selstart.y = min(term->selanchor.y, selpoint.y);
+ term->selend.y = max(term->selanchor.y, selpoint.y);
}
- sel_spread();
- } else if ((b == MBT_SELECT || b == MBT_EXTEND) && a == MA_RELEASE) {
- if (selstate == DRAGGING) {
+ sel_spread(term);
+ } else if ((bcooked == MBT_SELECT || bcooked == MBT_EXTEND) &&
+ a == MA_RELEASE) {
+ if (term->selstate == DRAGGING) {
/*
* We've completed a selection. We now transfer the
* data to the clipboard.
*/
- clipme(selstart, selend, (seltype == RECTANGULAR));
- selstate = SELECTED;
+ clipme(term, term->selstart, term->selend,
+ (term->seltype == RECTANGULAR), FALSE);
+ term->selstate = SELECTED;
} else
- selstate = NO_SELECTION;
- } else if (b == MBT_PASTE
+ term->selstate = NO_SELECTION;
+ } else if (bcooked == MBT_PASTE
&& (a == MA_CLICK
#if MULTICLICK_ONLY_EVENT
|| a == MA_2CLK || a == MA_3CLK
#endif
)) {
- request_paste();
+ request_paste(term->frontend);
+ }
+
+ /*
+ * Since terminal output is suppressed during drag-selects, we
+ * should make sure to write any pending output if one has just
+ * finished.
+ */
+ if (term->selstate != DRAGGING)
+ term_out(term);
+ term_update(term);
+}
+
+int format_arrow_key(char *buf, Terminal *term, int xkey, int ctrl)
+{
+ char *p = buf;
+
+ if (term->vt52_mode)
+ p += sprintf((char *) p, "\x1B%c", xkey);
+ else {
+ int app_flg = (term->app_cursor_keys && !term->no_applic_c);
+#if 0
+ /*
+ * RDB: VT100 & VT102 manuals both state the app cursor
+ * keys only work if the app keypad is on.
+ *
+ * SGT: That may well be true, but xterm disagrees and so
+ * does at least one application, so I've #if'ed this out
+ * and the behaviour is back to PuTTY's original: app
+ * cursor and app keypad are independently switchable
+ * modes. If anyone complains about _this_ I'll have to
+ * put in a configurable option.
+ */
+ if (!term->app_keypad_keys)
+ app_flg = 0;
+#endif
+ /* Useful mapping of Ctrl-arrows */
+ if (ctrl)
+ app_flg = !app_flg;
+
+ if (app_flg)
+ p += sprintf((char *) p, "\x1BO%c", xkey);
+ else
+ p += sprintf((char *) p, "\x1B[%c", xkey);
}
- term_update();
+ return p - buf;
}
-void term_nopaste()
+void term_nopaste(Terminal *term)
{
- if (paste_len == 0)
+ if (term->paste_len == 0)
return;
- sfree(paste_buffer);
- paste_buffer = 0;
- paste_len = 0;
+ sfree(term->paste_buffer);
+ term->paste_buffer = NULL;
+ term->paste_len = 0;
}
-int term_paste_pending(void)
+int term_paste_pending(Terminal *term)
{
- return paste_len != 0;
+ return term->paste_len != 0;
}
-void term_paste()
+void term_paste(Terminal *term)
{
- static long last_paste = 0;
long now, paste_diff;
- if (paste_len == 0)
+ if (term->paste_len == 0)
return;
/* Don't wait forever to paste */
- if (paste_hold) {
+ if (term->paste_hold) {
now = GETTICKCOUNT();
- paste_diff = now - last_paste;
+ paste_diff = now - term->last_paste;
if (paste_diff >= 0 && paste_diff < 450)
return;
}
- paste_hold = 0;
+ term->paste_hold = 0;
- while (paste_pos < paste_len) {
+ while (term->paste_pos < term->paste_len) {
int n = 0;
- while (n + paste_pos < paste_len) {
- if (paste_buffer[paste_pos + n++] == '\r')
+ while (n + term->paste_pos < term->paste_len) {
+ if (term->paste_buffer[term->paste_pos + n++] == '\015')
break;
}
- luni_send(paste_buffer + paste_pos, n, 0);
- paste_pos += n;
+ if (term->ldisc)
+ luni_send(term->ldisc, term->paste_buffer + term->paste_pos, n, 0);
+ term->paste_pos += n;
- if (paste_pos < paste_len) {
- paste_hold = 1;
+ if (term->paste_pos < term->paste_len) {
+ term->paste_hold = 1;
return;
}
}
- sfree(paste_buffer);
- paste_buffer = 0;
- paste_len = 0;
+ sfree(term->paste_buffer);
+ term->paste_buffer = NULL;
+ term->paste_len = 0;
}
-static void deselect(void)
+static void deselect(Terminal *term)
{
- selstate = NO_SELECTION;
- selstart.x = selstart.y = selend.x = selend.y = 0;
+ term->selstate = NO_SELECTION;
+ term->selstart.x = term->selstart.y = term->selend.x = term->selend.y = 0;
}
-void term_deselect(void)
+void term_deselect(Terminal *term)
{
- deselect();
- term_update();
+ deselect(term);
+ term_update(term);
+
+ /*
+ * Since terminal output is suppressed during drag-selects, we
+ * should make sure to write any pending output if one has just
+ * finished.
+ */
+ if (term->selstate != DRAGGING)
+ term_out(term);
}
-int term_ldisc(int option)
+int term_ldisc(Terminal *term, int option)
{
if (option == LD_ECHO)
- return term_echoing;
+ return term->term_echoing;
if (option == LD_EDIT)
- return term_editing;
+ return term->term_editing;
return FALSE;
}
-/*
- * from_backend(), to get data from the backend for the terminal.
- */
-int from_backend(int is_stderr, char *data, int len)
+int term_data(Terminal *term, int is_stderr, const char *data, int len)
{
- assert(len > 0);
+ bufchain_add(&term->inbuf, data, len);
- bufchain_add(&inbuf, data, len);
+ if (!term->in_term_out) {
+ term->in_term_out = TRUE;
+ term_reset_cblink(term);
+ /*
+ * During drag-selects, we do not process terminal input,
+ * because the user will want the screen to hold still to
+ * be selected.
+ */
+ if (term->selstate != DRAGGING)
+ term_out(term);
+ term->in_term_out = FALSE;
+ }
/*
* term_out() always completely empties inbuf. Therefore,
* the remote side needing to wait until term_out() has cleared
* a backlog.
*
- * This is a slightly suboptimal way to deal with SSH2 - in
+ * This is a slightly suboptimal way to deal with SSH-2 - in
* principle, the window mechanism would allow us to continue
* to accept data on forwarded ports and X connections even
* while the terminal processing was going slowly - but we
* can't do the 100% right thing without moving the terminal
* processing into a separate thread, and that might hurt
- * portability. So we manage stdout buffering the old SSH1 way:
+ * portability. So we manage stdout buffering the old SSH-1 way:
* if the terminal processing goes slowly, the whole SSH
* connection stops accepting data until it's ready.
*
*/
return 0;
}
+
+/*
+ * Write untrusted data to the terminal.
+ * The only control character that should be honoured is \n (which
+ * will behave as a CRLF).
+ */
+int term_data_untrusted(Terminal *term, const char *data, int len)
+{
+ int i;
+ /* FIXME: more sophisticated checking? */
+ for (i = 0; i < len; i++) {
+ if (data[i] == '\n')
+ term_data(term, 1, "\r\n", 2);
+ else if (data[i] & 0x60)
+ term_data(term, 1, data + i, 1);
+ }
+ return 0; /* assumes that term_data() always returns 0 */
+}
+
+void term_provide_logctx(Terminal *term, void *logctx)
+{
+ term->logctx = logctx;
+}
+
+void term_set_focus(Terminal *term, int has_focus)
+{
+ term->has_focus = has_focus;
+ term_schedule_cblink(term);
+}
+
+/*
+ * Provide "auto" settings for remote tty modes, suitable for an
+ * application with a terminal window.
+ */
+char *term_get_ttymode(Terminal *term, const char *mode)
+{
+ char *val = NULL;
+ if (strcmp(mode, "ERASE") == 0) {
+ val = term->bksp_is_delete ? "^?" : "^H";
+ }
+ /* FIXME: perhaps we should set ONLCR based on lfhascr as well? */
+ /* FIXME: or ECHO and friends based on local echo state? */
+ return dupstr(val);
+}
+
+struct term_userpass_state {
+ size_t curr_prompt;
+ int done_prompt; /* printed out prompt yet? */
+ size_t pos; /* cursor position */
+};
+
+/*
+ * Process some terminal data in the course of username/password
+ * input.
+ */
+int term_get_userpass_input(Terminal *term, prompts_t *p,
+ unsigned char *in, int inlen)
+{
+ struct term_userpass_state *s = (struct term_userpass_state *)p->data;
+ if (!s) {
+ /*
+ * First call. Set some stuff up.
+ */
+ p->data = s = snew(struct term_userpass_state);
+ s->curr_prompt = 0;
+ s->done_prompt = 0;
+ /* We only print the `name' caption if we have to... */
+ if (p->name_reqd && p->name) {
+ size_t l = strlen(p->name);
+ term_data_untrusted(term, p->name, l);
+ if (p->name[l-1] != '\n')
+ term_data_untrusted(term, "\n", 1);
+ }
+ /* ...but we always print any `instruction'. */
+ if (p->instruction) {
+ size_t l = strlen(p->instruction);
+ term_data_untrusted(term, p->instruction, l);
+ if (p->instruction[l-1] != '\n')
+ term_data_untrusted(term, "\n", 1);
+ }
+ /*
+ * Zero all the results, in case we abort half-way through.
+ */
+ {
+ int i;
+ for (i = 0; i < (int)p->n_prompts; i++)
+ prompt_set_result(p->prompts[i], "");
+ }
+ }
+
+ while (s->curr_prompt < p->n_prompts) {
+
+ prompt_t *pr = p->prompts[s->curr_prompt];
+ int finished_prompt = 0;
+
+ if (!s->done_prompt) {
+ term_data_untrusted(term, pr->prompt, strlen(pr->prompt));
+ s->done_prompt = 1;
+ s->pos = 0;
+ }
+
+ /* Breaking out here ensures that the prompt is printed even
+ * if we're now waiting for user data. */
+ if (!in || !inlen) break;
+
+ /* FIXME: should we be using local-line-editing code instead? */
+ while (!finished_prompt && inlen) {
+ char c = *in++;
+ inlen--;
+ switch (c) {
+ case 10:
+ case 13:
+ term_data(term, 0, "\r\n", 2);
+ prompt_ensure_result_size(pr, s->pos + 1);
+ pr->result[s->pos] = '\0';
+ /* go to next prompt, if any */
+ s->curr_prompt++;
+ s->done_prompt = 0;
+ finished_prompt = 1; /* break out */
+ break;
+ case 8:
+ case 127:
+ if (s->pos > 0) {
+ if (pr->echo)
+ term_data(term, 0, "\b \b", 3);
+ s->pos--;
+ }
+ break;
+ case 21:
+ case 27:
+ while (s->pos > 0) {
+ if (pr->echo)
+ term_data(term, 0, "\b \b", 3);
+ s->pos--;
+ }
+ break;
+ case 3:
+ case 4:
+ /* Immediate abort. */
+ term_data(term, 0, "\r\n", 2);
+ sfree(s);
+ p->data = NULL;
+ return 0; /* user abort */
+ default:
+ /*
+ * This simplistic check for printability is disabled
+ * when we're doing password input, because some people
+ * have control characters in their passwords.
+ */
+ if (!pr->echo || (c >= ' ' && c <= '~') ||
+ ((unsigned char) c >= 160)) {
+ prompt_ensure_result_size(pr, s->pos + 1);
+ pr->result[s->pos++] = c;
+ if (pr->echo)
+ term_data(term, 0, &c, 1);
+ }
+ break;
+ }
+ }
+
+ }
+
+ if (s->curr_prompt < p->n_prompts) {
+ return -1; /* more data required */
+ } else {
+ sfree(s);
+ p->data = NULL;
+ return +1; /* all done */
+ }
+}
projects / u / mdw / putty / blobdiff