X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/1cff13202c4c2cabbf77eac5656b327055ab11e7..62ddb51e0424dd4bd1098b024f2427959aefc729:/terminal.c diff --git a/terminal.c b/terminal.c index 9003cc49..92c3f032 100644 --- a/terminal.c +++ b/terminal.c @@ -1,3 +1,7 @@ +/* + * Terminal emulator. + */ + #include #include #include @@ -61,6 +65,8 @@ #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 ) +char *EMPTY_WINDOW_TITLE = ""; + const char sco2ansicolour[] = { 0, 4, 2, 6, 1, 5, 3, 7 }; #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t)) @@ -94,10 +100,12 @@ 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 */ @@ -133,14 +141,13 @@ static void unlineptr(termline *line) freeline(line); } +#ifdef TERM_CC_DIAGS /* * Diagnostic function: verify that a termline has a correct * combining character structure. * - * XXX-REMOVE-BEFORE-RELEASE: This is a performance-intensive - * check. Although it's currently really useful for getting all the - * bugs out of the new cc stuff, it will want to be absent when we - * make a proper release. + * This is a performance-intensive check, so it's no longer enabled + * by default. */ static void cc_check(termline *line) { @@ -185,6 +192,7 @@ static void cc_check(termline *line) sfree(flags); } +#endif /* * Add a combining character to a character cell. @@ -231,7 +239,9 @@ static void add_cc(termline *line, int col, unsigned long chr) line->chars[newcc].chr = chr; line->chars[col].cc_next = newcc - col; - cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */ +#ifdef TERM_CC_DIAGS + cc_check(line); +#endif } /* @@ -257,7 +267,9 @@ static void clear_cc(termline *line, int col) line->chars[origcol].cc_next = 0; - cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */ +#ifdef TERM_CC_DIAGS + cc_check(line); +#endif } /* @@ -271,7 +283,7 @@ static int termchars_equal_override(termchar *a, termchar *b, /* FULL-TERMCHAR */ if (a->chr != bchr) return FALSE; - if (a->attr != battr) + if ((a->attr &~ DATTR_MASK) != (battr &~ DATTR_MASK)) return FALSE; while (a->cc_next || b->cc_next) { if (!a->cc_next || !b->cc_next) @@ -305,7 +317,9 @@ static void copy_termchar(termline *destline, int x, termchar *src) add_cc(destline, x, src->chr); } - cc_check(destline); /* XXX-REMOVE-BEFORE-RELEASE */ +#ifdef TERM_CC_DIAGS + cc_check(destline); +#endif } /* @@ -324,7 +338,9 @@ static void move_termchar(termline *line, termchar *dest, termchar *src) /* Ensure the original cell doesn't have a cc list. */ src->cc_next = 0; - cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */ +#ifdef TERM_CC_DIAGS + cc_check(line); +#endif } /* @@ -554,15 +570,39 @@ static void makeliteral_attr(struct buf *b, termchar *c, unsigned long *state) * 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. */ - if (c->attr < 0x8000) { - add(b, (unsigned char)((c->attr >> 8) & 0xFF)); - add(b, (unsigned char)(c->attr & 0xFF)); + 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)(((c->attr >> 24) & 0x7F) | 0x80)); - add(b, (unsigned char)((c->attr >> 16) & 0xFF)); - add(b, (unsigned char)((c->attr >> 8) & 0xFF)); - add(b, (unsigned char)(c->attr & 0xFF)); + 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) @@ -645,9 +685,9 @@ static unsigned char *compressline(termline *ldata) * Diagnostics: ensure that the compressed data really does * decompress to the right thing. * - * XXX-REMOVE-BEFORE-RELEASE: This is a bit performance-heavy - * to be leaving in production code. + * This is a bit performance-heavy for production code. */ +#ifdef TERM_CC_DIAGS #ifndef CHECK_SB_COMPRESSION { int dused; @@ -677,6 +717,7 @@ static unsigned char *compressline(termline *ldata) freeline(dcl); } #endif +#endif /* TERM_CC_DIAGS */ /* * Trim the allocated memory so we don't waste any, and return. @@ -758,18 +799,30 @@ static void readliteral_chr(struct buf *b, termchar *c, termline *ldata, static void readliteral_attr(struct buf *b, termchar *c, termline *ldata, unsigned long *state) { - int val; + 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); } - c->attr = val; + 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) @@ -924,7 +977,9 @@ static void resizeline(Terminal *term, termline *line, int cols) for (i = oldcols; i < cols; i++) line->chars[i] = term->basic_erase_char; - cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */ +#ifdef TERM_CC_DIAGS + cc_check(line); +#endif } } @@ -981,6 +1036,21 @@ static termline *lineptr(Terminal *term, int y, int lineno, int screen) } /* 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 " + "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); resizeline(term, line, term->cols); @@ -1024,6 +1094,14 @@ static void term_timer(void *ctx, long now) 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. @@ -1031,10 +1109,7 @@ static void term_timer(void *ctx, long now) static void seen_disp_event(Terminal *term) { term->seen_disp_event = TRUE; /* for scrollback-reset-on-activity */ - if (!term->window_update_pending) { - term->window_update_pending = TRUE; - term->next_update = schedule_timer(UPDATE_DELAY, term_timer, term); - } + term_schedule_update(term); } /* @@ -1103,12 +1178,15 @@ static void term_schedule_vbell(Terminal *term, int already_started, /* * 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(Terminal *term) +static void power_on(Terminal *term, int clear) { - term->curs.x = term->curs.y = 0; 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; @@ -1121,18 +1199,22 @@ static void power_on(Terminal *term) } term->alt_om = term->dec_om = term->cfg.dec_om; term->alt_ins = term->insert = FALSE; - term->alt_wnext = term->wrapnext = term->save_wnext = FALSE; + term->alt_wnext = term->wrapnext = + term->save_wnext = term->alt_save_wnext = FALSE; term->alt_wrap = term->wrap = term->cfg.wrap_mode; - term->alt_cset = term->cset = term->save_cset = 0; - term->alt_utf = term->utf = term->save_utf = 0; + 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 = 0; - term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = CSET_ASCII; + 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->curr_attr = ATTR_DEFAULT; + 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 = term->cfg.app_cursor; term->app_keypad_keys = term->cfg.app_keypad; @@ -1150,8 +1232,17 @@ static void power_on(Terminal *term) swap_screen(term, 1, FALSE, FALSE); erase_lots(term, FALSE, TRUE, TRUE); swap_screen(term, 0, FALSE, FALSE); - erase_lots(term, FALSE, TRUE, TRUE); + 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); } @@ -1216,9 +1307,9 @@ void term_seen_key_event(Terminal *term) /* * Same as power_on(), but an external function. */ -void term_pwron(Terminal *term) +void term_pwron(Terminal *term, int clear) { - power_on(term); + power_on(term, clear); if (term->ldisc) /* cause ldisc to notice changes */ ldisc_send(term->ldisc, NULL, 0, 0); term->disptop = 0; @@ -1317,7 +1408,7 @@ void term_reconfig(Terminal *term, Config *cfg) */ void term_clrsb(Terminal *term) { - termline *line; + unsigned char *line; term->disptop = 0; while ((line = delpos234(term->scrollback, 0)) != NULL) { sfree(line); /* this is compressed data, not a termline */ @@ -1375,7 +1466,7 @@ Terminal *term_init(Config *mycfg, struct unicode_data *ucsdata, term->tabs = NULL; deselect(term); term->rows = term->cols = -1; - power_on(term); + power_on(term, TRUE); term->beephead = term->beeptail = NULL; #ifdef OPTIMISE_SCROLL term->scrollhead = term->scrolltail = NULL; @@ -1468,6 +1559,11 @@ void term_size(Terminal *term, int newrows, int newcols, int newsavelines) newsavelines == term->savelines) return; /* nothing to do */ + /* Behave sensibly if we're given zero (or negative) rows/cols */ + + if (newrows < 1) newrows = 1; + if (newcols < 1) newcols = 1; + deselect(term); swap_screen(term, 0, FALSE, FALSE); @@ -1658,6 +1754,7 @@ static int find_last_nonempty_line(Terminal * term, tree234 * screen) static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos) { int t; + pos tp; tree234 *ttr; if (!which) @@ -1705,6 +1802,35 @@ static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos) 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; } if (reset && term->screen) { @@ -1779,7 +1905,9 @@ static void scroll(Terminal *term, int topline, int botline, int lines, int sb) } else { while (lines > 0) { line = delpos234(term->screen, topline); - cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */ +#ifdef TERM_CC_DIAGS + cc_check(line); +#endif if (sb && term->savelines > 0) { int sblen = count234(term->scrollback); /* @@ -1914,27 +2042,27 @@ static void scroll_display(Terminal *term, int topline, int botline, int lines) if (lines > 0) { for (i = 0; i < nlines; i++) for (j = 0; j < term->cols; j++) - copy_termchar(term->disptext[start+i], j, - term->disptext[start+i+distance]->chars+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[start+nlines+i]->chars[j].attr |= ATTR_INVALID; + 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[start+i+distance], j, - term->disptext[start+i]->chars+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[start+i]->chars[j].attr |= ATTR_INVALID; + term->disptext[i]->chars[j].attr |= ATTR_INVALID; } save_scroll(term, topline, botline, lines); } @@ -2377,7 +2505,7 @@ static void term_out(Terminal *term) unget = -1; chars = NULL; /* placate compiler warnings */ - while (nchars > 0 || bufchain_size(&term->inbuf) > 0) { + while (nchars > 0 || unget != -1 || bufchain_size(&term->inbuf) > 0) { if (unget == -1) { if (nchars == 0) { void *ret; @@ -2567,12 +2695,19 @@ static void term_out(Terminal *term) } } - /* How about C1 controls ? */ + /* + * 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)) { - term->termstate = SEEN_ESC; - term->esc_query = FALSE; - c = '@' + (c & 0x1F); + if (c == 0x9a) + c = 0; + else { + term->termstate = SEEN_ESC; + term->esc_query = FALSE; + c = '@' + (c & 0x1F); + } } /* Or the GL control. */ @@ -2592,32 +2727,25 @@ static void term_out(Terminal *term) if ((c & ~0x1F) == 0 && term->termstate < DO_CTRLS) { switch (c) { case '\005': /* ENQ: terminal type query */ - /* Strictly speaking this is VT100 but a VT100 defaults to + /* + * 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); if (term->ldisc) { - char abuf[256], *s, *d; - int state = 0; - for (s = term->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; + char abuf[lenof(term->cfg.answerback)], *s, *d; + for (s = term->cfg.answerback, d = abuf; *s;) { + char *n; + char c = ctrlparse(s, &n); + if (n) { + *d++ = c; + s = n; + } else { + *d++ = *s++; + } } lpage_send(term->ldisc, DEFAULT_CODEPAGE, abuf, d - abuf, 0); @@ -2679,7 +2807,7 @@ static void term_out(Terminal *term) * Perform an actual beep if we're not overloaded. */ if (!term->cfg.bellovl || !term->beep_overloaded) { - beep(term->frontend, term->cfg.beep); + do_beep(term->frontend, term->cfg.beep); if (term->cfg.beep == BELL_VISUAL) { term_schedule_vbell(term, FALSE, 0); @@ -2783,7 +2911,9 @@ static void term_out(Terminal *term) if (DIRECT_CHAR(c)) width = 1; if (!width) - width = wcwidth((wchar_t) c); + width = (term->cfg.cjk_ambig_wide ? + mk_wcwidth_cjk((wchar_t) c) : + mk_wcwidth((wchar_t) c)); if (term->wrapnext && term->wrap && width > 0) { cline->lattr |= LATTR_WRAPPED; @@ -2841,6 +2971,7 @@ static void term_out(Terminal *term) 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); @@ -2999,7 +3130,7 @@ static void term_out(Terminal *term) break; case 'c': /* RIS: restore power-on settings */ compatibility(VT100); - power_on(term); + power_on(term, TRUE); if (term->ldisc) /* cause ldisc to notice changes */ ldisc_send(term->ldisc, NULL, 0, 0); if (term->reset_132) { @@ -3217,10 +3348,17 @@ static void term_out(Terminal *term) break; case 'J': /* ED: erase screen or parts of it */ { - unsigned int i = def(term->esc_args[0], 0) + 1; - if (i > 3) - i = 0; - erase_lots(term, 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)); + } } term->disptop = 0; seen_disp_event(term); @@ -3468,10 +3606,10 @@ static void term_out(Terminal *term) case 95: case 96: case 97: - /* xterm-style bright foreground */ + /* aixterm-style bright foreground */ term->curr_attr &= ~ATTR_FGMASK; term->curr_attr |= - ((term->esc_args[i] - 90 + 16) + ((term->esc_args[i] - 90 + 8) << ATTR_FGSHIFT); break; case 39: /* default-foreground */ @@ -3499,16 +3637,36 @@ static void term_out(Terminal *term) case 105: case 106: case 107: - /* xterm-style bright background */ + /* aixterm-style bright background */ term->curr_attr &= ~ATTR_BGMASK; term->curr_attr |= - ((term->esc_args[i] - 100 + 16) + ((term->esc_args[i] - 100 + 8) << ATTR_BGSHIFT); break; case 49: /* default-background */ 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; } } set_erase_char(term); @@ -3635,8 +3793,11 @@ static void term_out(Terminal *term) break; case 20: if (term->ldisc && - !term->cfg.no_remote_qtitle) { - p = get_window_title(term->frontend, TRUE); + term->cfg.remote_qtitle_action != TITLE_NONE) { + if(term->cfg.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); @@ -3645,8 +3806,11 @@ static void term_out(Terminal *term) break; case 21: if (term->ldisc && - !term->cfg.no_remote_qtitle) { - p = get_window_title(term->frontend,FALSE); + term->cfg.remote_qtitle_action != TITLE_NONE) { + if(term->cfg.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); @@ -3736,7 +3900,7 @@ static void term_out(Terminal *term) } } break; - case 'Z': /* CBT: BackTab for xterm */ + case 'Z': /* CBT */ compatibility(OTHER); { int i = def(term->esc_args[0], 1); @@ -3801,12 +3965,13 @@ static void term_out(Terminal *term) if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) { long colour = (sco2ansicolour[term->esc_args[0] & 0x7] | - ((term->esc_args[0] & 0x8) << 1)) << + (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 */ @@ -3814,12 +3979,13 @@ static void term_out(Terminal *term) if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) { long colour = (sco2ansicolour[term->esc_args[0] & 0x7] | - ((term->esc_args[0] & 0x8) << 1)) << + (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', '='): @@ -3981,7 +4147,7 @@ static void term_out(Terminal *term) break; case SEEN_OSC_P: { - int max = (term->osc_strlen == 0 ? 21 : 16); + int max = (term->osc_strlen == 0 ? 21 : 15); int val; if ((int)c >= '0' && (int)c <= '9') val = c - '0'; @@ -4255,22 +4421,14 @@ static void term_out(Terminal *term) term->termstate = TOPLEVEL; term->curr_attr &= ~ATTR_FGMASK; term->curr_attr &= ~ATTR_BOLD; - term->curr_attr |= (c & 0x7) << ATTR_FGSHIFT; - if ((c & 0x8) || term->vt52_bold) - term->curr_attr |= ATTR_BOLD; - + term->curr_attr |= (c & 0xF) << ATTR_FGSHIFT; set_erase_char(term); break; case VT52_BG: term->termstate = TOPLEVEL; term->curr_attr &= ~ATTR_BGMASK; term->curr_attr &= ~ATTR_BLINK; - term->curr_attr |= (c & 0x7) << ATTR_BGSHIFT; - - /* Note: bold background */ - if (c & 0x8) - term->curr_attr |= ATTR_BLINK; - + term->curr_attr |= (c & 0xF) << ATTR_BGSHIFT; set_erase_char(term); break; #endif @@ -4284,7 +4442,8 @@ static void term_out(Terminal *term) } term_print_flush(term); - logflush(term->logctx); + if (term->cfg.logflush) + logflush(term->logctx); } /* @@ -4317,8 +4476,11 @@ static int term_bidi_cache_hit(Terminal *term, int line, } static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore, - termchar *lafter, int width) + 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; @@ -4333,20 +4495,141 @@ static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore, 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(width, termchar); + term->pre_bidi_cache[line].chars = snewn(size, termchar); term->post_bidi_cache[line].width = width; - term->post_bidi_cache[line].chars = snewn(width, termchar); + 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->cfg.bidi || !term->cfg.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); + } - memcpy(term->pre_bidi_cache[line].chars, lbefore, width * TSIZE); - memcpy(term->post_bidi_cache[line].chars, lafter, width * TSIZE); + for(it=0; itcols ; it++) + { + unsigned long uc = (ldata->chars[it].chr); + + switch (uc & CSET_MASK) { + case CSET_LINEDRW: + if (!term->cfg.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 = + (wchar_t)uc; + term->wcFrom[it].index = it; + } + + if(!term->cfg.bidi) + do_bidi(term->wcFrom, term->cols); + + /* this is saved iff done from inside the shaping */ + if(!term->cfg.bidi && term->cfg.arabicshaping) + for(it=0; itcols; it++) + term->wcTo[it] = term->wcFrom[it]; + + if(!term->cfg.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; itcols ; 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; } /* @@ -4355,21 +4638,21 @@ static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore, */ static void do_paint(Terminal *term, Context ctx, int may_optimise) { - int i, it, j, our_curs_y, our_curs_x; + int i, j, our_curs_y, our_curs_x; int rv, cursor; pos scrpos; wchar_t *ch; int chlen; - termchar cursor_background; #ifdef OPTIMISE_SCROLL struct scrollregion *sr; #endif /* OPTIMISE_SCROLL */ - - cursor_background = term->basic_erase_char; + termchar *newline; chlen = 1024; ch = snewn(chlen, wchar_t); + newline = snewn(term->cols, termchar); + rv = (!term->rvideo ^ !term->in_vbell ? ATTR_REVERSE : 0); /* Depends on: @@ -4395,17 +4678,28 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) our_curs_y = term->curs.y - term->disptop; { /* - * Adjust the cursor position 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. + * 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 (our_curs_x > 0 && - ldata->chars[our_curs_x].chr == UCSWIDE) + lchars[our_curs_x].chr == UCSWIDE) our_curs_x--; + unlineptr(ldata); } @@ -4453,102 +4747,29 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) int start = 0; int ccount = 0; int last_run_dirty = 0; + int laststart, dirtyrect; + int *backward; scrpos.y = i + term->disptop; ldata = lineptr(scrpos.y); - dirty_run = dirty_line = (ldata->lattr != - term->disptext[i]->lattr); - term->disptext[i]->lattr = ldata->lattr; - /* Do Arabic shaping and bidi. */ - if(!term->cfg.bidi || !term->cfg.arabicshaping) { - - if (!term_bidi_cache_hit(term, i, 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; itcols ; it++) - { - unsigned long uc = (ldata->chars[it].chr); - - switch (uc & CSET_MASK) { - case CSET_LINEDRW: - if (!term->cfg.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 = - (wchar_t)uc; - term->wcFrom[it].index = it; - } - - if(!term->cfg.bidi) - do_bidi(term->wcFrom, term->cols); - - /* this is saved iff done from inside the shaping */ - if(!term->cfg.bidi && term->cfg.arabicshaping) - for(it=0; itcols; it++) - term->wcTo[it] = term->wcFrom[it]; - - if(!term->cfg.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; itcols ; 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, i, ldata->chars, - term->ltemp, ldata->size); - - lchars = term->ltemp; - } else { - lchars = term->post_bidi_cache[i].chars; - } - } else + lchars = term_bidi_line(term, ldata, i); + if (lchars) { + backward = term->post_bidi_cache[i].backward; + } else { lchars = ldata->chars; + backward = NULL; + } + /* + * 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; termchar *d = lchars + j; - int break_run, do_copy; - scrpos.x = j; + scrpos.x = backward ? backward[j] : j; tchar = d->chr; tattr = d->attr; @@ -4557,6 +4778,16 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) tattr = (tattr & ~(ATTR_FGMASK | ATTR_BGMASK)) | ATTR_DEFFG | ATTR_DEFBG; + if (!term->cfg.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; + } + switch (tchar & CSET_MASK) { case CSET_ASCII: tchar = term->ucsdata->unitab_line[tchar & 0xFF]; @@ -4598,26 +4829,80 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) */ if (tchar != term->disptext[i]->chars[j].chr || tattr != (term->disptext[i]->chars[j].attr &~ - ATTR_NARROW)) { + (ATTR_NARROW | DATTR_MASK))) { if ((tattr & ATTR_WIDE) == 0 && char_width(ctx, tchar) == 2) tattr |= 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 == our_curs_x) { - /* FULL-TERMCHAR */ - cursor_background.chr = tchar; - cursor_background.attr = tattr; - /* For once, this cc_next field is an absolute index in lchars */ - if (d->cc_next) - cursor_background.cc_next = d->cc_next + j; - else - cursor_background.cc_next = 0; + 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 (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; @@ -4643,7 +4928,7 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) if (!term->ucsdata->dbcs_screenfont && !dirty_line) { if (term->disptext[i]->chars[j].chr == tchar && - term->disptext[i]->chars[j].attr == tattr) + (term->disptext[i]->chars[j].attr &~ DATTR_MASK) == tattr) break_run = TRUE; else if (!dirty_run && ccount == 1) break_run = TRUE; @@ -4651,7 +4936,12 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) if (break_run) { if ((dirty_run || last_run_dirty) && ccount > 0) { - do_text(ctx, start, i, ch, ccount, attr, ldata->lattr); + 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); + updated_line = 1; } start = j; @@ -4711,6 +5001,8 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) 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. */ @@ -4730,57 +5022,19 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) } } if (dirty_run && ccount > 0) { - do_text(ctx, start, i, ch, ccount, attr, ldata->lattr); - updated_line = 1; - } - - /* Cursor on this line ? (and changed) */ - if (i == our_curs_y && (term->curstype != cursor || updated_line)) { - ch[0] = (wchar_t) cursor_background.chr; - attr = cursor_background.attr | cursor; - ccount = 1; - - if (cursor_background.cc_next) { - termchar *dd = ldata->chars + cursor_background.cc_next; - - while (1) { - unsigned long schar; - - 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 >= chlen) { - chlen = ccount + 256; - ch = sresize(ch, chlen, wchar_t); - } - ch[ccount++] = (wchar_t) schar; - - if (dd->cc_next) - dd += dd->cc_next; - else - break; - } - - attr |= TATTR_COMBINING; - } + 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); - do_cursor(ctx, our_curs_x, i, ch, ccount, attr, ldata->lattr); - term->curstype = cursor; + updated_line = 1; } unlineptr(ldata); } + sfree(newline); sfree(ch); } @@ -4793,7 +5047,9 @@ void term_invalidate(Terminal *term) for (i = 0; i < term->rows; i++) for (j = 0; j < term->cols; j++) - term->disptext[i]->chars[j].attr = ATTR_INVALID; + term->disptext[i]->chars[j].attr |= ATTR_INVALID; + + term_schedule_update(term); } /* @@ -4811,19 +5067,16 @@ void term_paint(Terminal *term, Context ctx, 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; + term->disptext[i]->chars[j].attr |= ATTR_INVALID; else for (j = left / 2; j <= right / 2 + 1 && j < term->cols; j++) - term->disptext[i]->chars[j].attr = ATTR_INVALID; + term->disptext[i]->chars[j].attr |= ATTR_INVALID; } if (immediately) { do_paint (term, ctx, FALSE); } else { - if (!term->window_update_pending) { - term->window_update_pending = TRUE; - term->next_update = schedule_timer(UPDATE_DELAY, term_timer, term); - } + term_schedule_update(term); } } @@ -4856,17 +5109,43 @@ void term_scroll(Terminal *term, int rel, int where) term_update(term); } +/* + * 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(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 = snewn(buflen, wchar_t); - wbptr = workbuf; /* start filling here */ old_top_x = top.x; /* needed for rect==1 */ while (poslt(top, bottom)) { @@ -4889,7 +5168,8 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) * newline at the end)... */ if (!(ldata->lattr & LATTR_WRAPPED)) { - while (IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) && + while (nlpos.x && + IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) && !ldata->chars[nlpos.x - 1].cc_next && poslt(top, nlpos)) decpos(nlpos); @@ -4929,6 +5209,7 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) while (1) { int uc = ldata->chars[x].chr; + attr = ldata->chars[x].attr; switch (uc & CSET_MASK) { case CSET_LINEDRW: @@ -4980,16 +5261,8 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) } #endif - for (p = cbuf; *p; p++) { - /* Enough overhead for trailing NL and nul */ - if (wblen >= buflen - 16) { - buflen += 100; - workbuf = sresize(workbuf, buflen, wchar_t); - 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; @@ -5000,10 +5273,8 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) } 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; @@ -5011,12 +5282,12 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) unlineptr(ldata); } #if SELECTION_NUL_TERMINATED - wblen++; - *wbptr++ = 0; + clip_addchar(&buf, 0, 0); #endif - write_clip(term->frontend, workbuf, wblen, desel); /* transfer to clipbd */ - 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(Terminal *term) @@ -5341,13 +5612,32 @@ void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked, x = term->cols - 1; selpoint.y = y + term->disptop; - selpoint.x = x; ldata = lineptr(selpoint.y); + if ((ldata->lattr & LATTR_MODE) != LATTR_NORM) - selpoint.x /= 2; + 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 (raw_mouse) { + /* + * 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]; @@ -6053,13 +6343,13 @@ int term_data(Terminal *term, int is_stderr, const char *data, int len) * 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. * @@ -6068,6 +6358,24 @@ int term_data(Terminal *term, int is_stderr, const char *data, int len) 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; @@ -6078,3 +6386,144 @@ 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->cfg.bksp_is_delete ? "^?" : "^H"; + } + /* FIXME: perhaps we should set ONLCR based on cfg.lfhascr as well? */ + 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++) + memset(p->prompts[i]->result, 0, p->prompts[i]->result_len); + } + } + + 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); + pr->result[s->pos] = '\0'; + pr->result[pr->result_len - 1] = '\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)) + && s->pos < pr->result_len - 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 */ + } +}