374330e2 |
1 | #include <windows.h> |
2 | |
3 | #include <stdio.h> |
4 | #include <stdlib.h> |
49bad831 |
5 | #include <ctype.h> |
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6 | |
e1c8e0ed |
7 | #include <time.h> |
c83de303 |
8 | #include <assert.h> |
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9 | #include "putty.h" |
4facdf84 |
10 | #include "tree234.h" |
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11 | |
c9def1b8 |
12 | #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */ |
e14a5a13 |
13 | #define CL_VT100 0x0002 /* VT100 */ |
14 | #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */ |
15 | #define CL_VT102 0x0008 /* VT102 */ |
16 | #define CL_VT220 0x0010 /* VT220 */ |
17 | #define CL_VT320 0x0020 /* VT320 */ |
18 | #define CL_VT420 0x0040 /* VT420 */ |
19 | #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */ |
20 | #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */ |
c9def1b8 |
21 | #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */ |
22 | #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */ |
23 | #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */ |
e14a5a13 |
24 | |
c9def1b8 |
25 | #define TM_VT100 (CL_ANSIMIN|CL_VT100) |
26 | #define TM_VT100AVO (TM_VT100|CL_VT100AVO) |
27 | #define TM_VT102 (TM_VT100AVO|CL_VT102) |
28 | #define TM_VT220 (TM_VT102|CL_VT220) |
29 | #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320) |
30 | #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI) |
31 | |
32 | #define TM_PUTTY (0xFFFF) |
e14a5a13 |
33 | |
34 | #define compatibility(x) \ |
35 | if ( ((CL_##x)&compatibility_level) == 0 ) { \ |
36 | termstate=TOPLEVEL; \ |
37 | break; \ |
38 | } |
c9def1b8 |
39 | #define compatibility2(x,y) \ |
40 | if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \ |
41 | termstate=TOPLEVEL; \ |
42 | break; \ |
43 | } |
e14a5a13 |
44 | |
45 | #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 ) |
46 | |
47 | static int compatibility_level = TM_PUTTY; |
48 | |
4facdf84 |
49 | static tree234 *scrollback; /* lines scrolled off top of screen */ |
50 | static tree234 *screen; /* lines on primary screen */ |
51 | static tree234 *alt_screen; /* lines on alternate screen */ |
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52 | static int disptop; /* distance scrolled back (0 or -ve) */ |
e14a5a13 |
53 | |
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54 | static unsigned long *cpos; /* cursor position (convenience) */ |
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55 | |
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56 | static unsigned long *disptext; /* buffer of text on real screen */ |
57 | static unsigned long *wanttext; /* buffer of text we want on screen */ |
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58 | |
c83de303 |
59 | #define VBELL_TIMEOUT 100 /* millisecond len of visual bell */ |
156686ef |
60 | |
61 | struct beeptime { |
62 | struct beeptime *next; |
63 | long ticks; |
64 | }; |
65 | static struct beeptime *beephead, *beeptail; |
66 | int nbeeps; |
67 | int beep_overloaded; |
68 | long lastbeep; |
69 | |
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70 | static unsigned char *selspace; /* buffer for building selections in */ |
71 | |
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72 | #define TSIZE (sizeof(unsigned long)) |
c83de303 |
73 | #define fix_cpos do { cpos = lineptr(curs.y) + curs.x; } while(0) |
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74 | |
75 | static unsigned long curr_attr, save_attr; |
e14a5a13 |
76 | static unsigned long erase_char = ERASE_CHAR; |
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77 | |
4facdf84 |
78 | typedef struct { |
79 | int y, x; |
80 | } pos; |
81 | #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) ) |
82 | #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) ) |
83 | #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x ) |
84 | #define posdiff(p1,p2) ( ((p2).y - (p1).y) * (cols+1) + (p2).x - (p1).x ) |
85 | #define incpos(p) ( (p).x == cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) ) |
86 | #define decpos(p) ( (p).x == 0 ? ((p).x = cols, (p).y--, 1) : ((p).x--, 0) ) |
87 | |
88 | static pos curs; /* cursor */ |
89 | static pos savecurs; /* saved cursor position */ |
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90 | static int marg_t, marg_b; /* scroll margins */ |
91 | static int dec_om; /* DEC origin mode flag */ |
92 | static int wrap, wrapnext; /* wrap flags */ |
93 | static int insert; /* insert-mode flag */ |
94 | static int cset; /* 0 or 1: which char set */ |
95 | static int save_cset, save_csattr; /* saved with cursor position */ |
96 | static int rvideo; /* global reverse video flag */ |
c83de303 |
97 | static int rvbell_timeout; /* for ESC[?5hESC[?5l vbell */ |
e14a5a13 |
98 | static int cursor_on; /* cursor enabled flag */ |
99 | static int reset_132; /* Flag ESC c resets to 80 cols */ |
100 | static int use_bce; /* Use Background coloured erase */ |
101 | static int blinker; /* When blinking is the cursor on ? */ |
c9def1b8 |
102 | static int tblinker; /* When the blinking text is on */ |
103 | static int blink_is_real; /* Actually blink blinking text */ |
0965bee0 |
104 | static int term_echoing; /* Does terminal want local echo? */ |
105 | static int term_editing; /* Does terminal want local edit? */ |
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106 | |
107 | static unsigned long cset_attr[2]; |
108 | |
109 | /* |
110 | * Saved settings on the alternate screen. |
111 | */ |
112 | static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset; |
113 | static int alt_t, alt_b; |
114 | static int alt_which; |
115 | |
116 | #define ARGS_MAX 32 /* max # of esc sequence arguments */ |
064916ea |
117 | #define ARG_DEFAULT 0 /* if an arg isn't specified */ |
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118 | #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) |
119 | static int esc_args[ARGS_MAX]; |
120 | static int esc_nargs; |
121 | static int esc_query; |
8b811b12 |
122 | #define ANSI(x,y) ((x)+((y)<<8)) |
123 | #define ANSI_QUE(x) ANSI(x,TRUE) |
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124 | |
125 | #define OSC_STR_MAX 2048 |
126 | static int osc_strlen; |
127 | static char osc_string[OSC_STR_MAX+1]; |
128 | static int osc_w; |
129 | |
c9def1b8 |
130 | static char id_string[1024] = "\033[?6c"; |
131 | |
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132 | static unsigned char *tabs; |
133 | |
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134 | static enum { |
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135 | TOPLEVEL, |
136 | SEEN_ESC, |
137 | SEEN_CSI, |
138 | SEEN_OSC, |
139 | SEEN_OSC_W, |
140 | |
141 | DO_CTRLS, |
142 | |
143 | IGNORE_NEXT, |
144 | SET_GL, SET_GR, |
145 | SEEN_OSC_P, |
146 | OSC_STRING, OSC_MAYBE_ST, |
e14a5a13 |
147 | SEEN_ESCHASH, |
148 | VT52_ESC, |
149 | VT52_Y1, |
150 | VT52_Y2 |
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151 | } termstate; |
152 | |
153 | static enum { |
154 | NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED |
155 | } selstate; |
156 | static enum { |
157 | SM_CHAR, SM_WORD, SM_LINE |
158 | } selmode; |
4facdf84 |
159 | static pos selstart, selend, selanchor; |
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160 | |
161 | static short wordness[256] = { |
162 | 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 */ |
163 | 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 */ |
164 | 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 */ |
165 | 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 */ |
166 | 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 */ |
167 | 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 */ |
168 | 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 */ |
169 | 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 */ |
170 | }; |
171 | |
172 | static unsigned char sel_nl[] = SEL_NL; |
c9def1b8 |
173 | static char * paste_buffer = 0; |
174 | static int paste_len, paste_pos, paste_hold; |
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175 | |
176 | /* |
177 | * Internal prototypes. |
178 | */ |
179 | static void do_paint (Context, int); |
180 | static void erase_lots (int, int, int); |
181 | static void swap_screen (int); |
182 | static void update_sbar (void); |
183 | static void deselect (void); |
e1c8e0ed |
184 | /* log session to file stuff ... */ |
185 | static FILE *lgfp = NULL; |
186 | static void logtraffic(unsigned char c, int logmode); |
374330e2 |
187 | |
188 | /* |
c83de303 |
189 | * Retrieve a line of the screen or of the scrollback, according to |
190 | * whether the y coordinate is non-negative or negative |
191 | * (respectively). |
192 | */ |
193 | unsigned long *lineptr(int y, int lineno) { |
194 | unsigned long *line, lineattrs; |
195 | tree234 *whichtree; |
196 | int i, treeindex, oldlen; |
197 | |
198 | if (y >= 0) { |
199 | whichtree = screen; |
200 | treeindex = y; |
201 | } else { |
202 | whichtree = scrollback; |
203 | treeindex = y + count234(scrollback); |
204 | } |
205 | line = index234(whichtree, treeindex); |
206 | |
207 | /* We assume that we don't screw up and retrieve something out of range. */ |
c83de303 |
208 | assert(line != NULL); |
c83de303 |
209 | |
210 | if (line[0] != cols) { |
211 | /* |
212 | * This line is the wrong length, which probably means it |
213 | * hasn't been accessed since a resize. Resize it now. |
214 | */ |
215 | oldlen = line[0]; |
216 | lineattrs = line[oldlen+1]; |
217 | delpos234(whichtree, treeindex); |
218 | line = srealloc(line, TSIZE * (2+cols)); |
219 | line[0] = cols; |
220 | for (i = oldlen; i < cols; i++) |
221 | line[i+1] = ERASE_CHAR; |
222 | line[cols+1] = lineattrs & LATTR_MODE; |
223 | addpos234(whichtree, line, treeindex); |
224 | } |
225 | |
226 | return line+1; |
227 | } |
228 | #define lineptr(x) lineptr(x,__LINE__) |
229 | /* |
374330e2 |
230 | * Set up power-on settings for the terminal. |
231 | */ |
232 | static void power_on(void) { |
4facdf84 |
233 | curs.x = curs.y = alt_x = alt_y = savecurs.x = savecurs.y = 0; |
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234 | alt_t = marg_t = 0; |
235 | if (rows != -1) |
236 | alt_b = marg_b = rows - 1; |
237 | else |
238 | alt_b = marg_b = 0; |
239 | if (cols != -1) { |
240 | int i; |
241 | for (i = 0; i < cols; i++) |
242 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
243 | } |
244 | alt_om = dec_om = cfg.dec_om; |
245 | alt_wnext = wrapnext = alt_ins = insert = FALSE; |
246 | alt_wrap = wrap = cfg.wrap_mode; |
247 | alt_cset = cset = 0; |
248 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
249 | rvideo = 0; |
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250 | in_vbell = FALSE; |
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251 | cursor_on = 1; |
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252 | save_attr = curr_attr = ATTR_DEFAULT; |
0965bee0 |
253 | term_editing = term_echoing = FALSE; |
254 | ldisc_send(NULL, 0); /* cause ldisc to notice changes */ |
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255 | app_cursor_keys = cfg.app_cursor; |
256 | app_keypad_keys = cfg.app_keypad; |
c9def1b8 |
257 | use_bce = cfg.bce; |
258 | blink_is_real = cfg.blinktext; |
e14a5a13 |
259 | erase_char = ERASE_CHAR; |
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260 | alt_which = 0; |
261 | { |
262 | int i; |
263 | for (i = 0; i < 256; i++) |
264 | wordness[i] = cfg.wordness[i]; |
265 | } |
4facdf84 |
266 | if (screen) { |
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267 | swap_screen (1); |
268 | erase_lots (FALSE, TRUE, TRUE); |
269 | swap_screen (0); |
270 | erase_lots (FALSE, TRUE, TRUE); |
271 | } |
272 | } |
273 | |
274 | /* |
275 | * Force a screen update. |
276 | */ |
277 | void term_update(void) { |
278 | Context ctx; |
279 | ctx = get_ctx(); |
280 | if (ctx) { |
c9def1b8 |
281 | if ( (seen_key_event && (cfg.scroll_on_key)) || |
a094ae43 |
282 | (seen_disp_event && (cfg.scroll_on_disp)) ) { |
4facdf84 |
283 | disptop = 0; /* return to main screen */ |
cabfd08c |
284 | seen_disp_event = seen_key_event = 0; |
8ac3e544 |
285 | update_sbar(); |
cabfd08c |
286 | } |
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287 | do_paint (ctx, TRUE); |
4facdf84 |
288 | sys_cursor(curs.x, curs.y - disptop); |
374330e2 |
289 | free_ctx (ctx); |
374330e2 |
290 | } |
291 | } |
292 | |
293 | /* |
294 | * Same as power_on(), but an external function. |
295 | */ |
296 | void term_pwron(void) { |
297 | power_on(); |
298 | fix_cpos; |
4facdf84 |
299 | disptop = 0; |
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300 | deselect(); |
301 | term_update(); |
302 | } |
303 | |
304 | /* |
305 | * Clear the scrollback. |
306 | */ |
307 | void term_clrsb(void) { |
4facdf84 |
308 | unsigned long *line; |
309 | disptop = 0; |
310 | while ((line = delpos234(scrollback, 0)) != NULL) { |
311 | sfree(line); |
312 | } |
374330e2 |
313 | update_sbar(); |
314 | } |
315 | |
316 | /* |
317 | * Initialise the terminal. |
318 | */ |
319 | void term_init(void) { |
4facdf84 |
320 | screen = alt_screen = scrollback = NULL; |
321 | disptop = 0; |
374330e2 |
322 | disptext = wanttext = NULL; |
323 | tabs = NULL; |
324 | selspace = NULL; |
325 | deselect(); |
326 | rows = cols = -1; |
374330e2 |
327 | power_on(); |
156686ef |
328 | beephead = beeptail = NULL; |
329 | nbeeps = 0; |
330 | lastbeep = FALSE; |
331 | beep_overloaded = FALSE; |
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332 | } |
333 | |
334 | /* |
335 | * Set up the terminal for a given size. |
336 | */ |
337 | void term_size(int newrows, int newcols, int newsavelines) { |
4facdf84 |
338 | tree234 *newsb, *newscreen, *newalt; |
339 | unsigned long *newdisp, *newwant, *oldline, *line; |
260f3dec |
340 | int i, j, ccols; |
c83de303 |
341 | int sblen; |
d6832394 |
342 | int save_alt_which = alt_which; |
343 | |
374330e2 |
344 | if (newrows == rows && newcols == cols && newsavelines == savelines) |
345 | return; /* nothing to do */ |
346 | |
d6832394 |
347 | deselect(); |
348 | swap_screen(0); |
349 | |
374330e2 |
350 | alt_t = marg_t = 0; |
351 | alt_b = marg_b = newrows - 1; |
352 | |
c83de303 |
353 | if (rows == -1) { |
354 | scrollback = newtree234(NULL); |
355 | screen = newtree234(NULL); |
356 | rows = 0; |
357 | } |
358 | |
359 | /* |
360 | * Resize the screen and scrollback. We only need to shift |
361 | * lines around within our data structures, because lineptr() |
362 | * will take care of resizing each individual line if |
363 | * necessary. So: |
364 | * |
365 | * - If the new screen and the old screen differ in length, we |
366 | * must shunt some lines in from the scrollback or out to |
367 | * the scrollback. |
368 | * |
369 | * - If doing that fails to provide us with enough material to |
370 | * fill the new screen (i.e. the number of rows needed in |
371 | * the new screen exceeds the total number in the previous |
372 | * screen+scrollback), we must invent some blank lines to |
373 | * cover the gap. |
374 | * |
375 | * - Then, if the new scrollback length is less than the |
376 | * amount of scrollback we actually have, we must throw some |
377 | * away. |
378 | */ |
379 | sblen = count234(scrollback); |
c83de303 |
380 | if (newrows > rows) { |
381 | for (i = rows; i < newrows; i++) { |
382 | if (sblen > 0) { |
383 | line = delpos234(scrollback, --sblen); |
4facdf84 |
384 | } else { |
c83de303 |
385 | line = smalloc(TSIZE * (newcols+2)); |
386 | line[0] = newcols; |
387 | for (j = 0; j <= newcols; j++) |
388 | line[j+1] = ERASE_CHAR; |
4facdf84 |
389 | } |
c83de303 |
390 | addpos234(screen, line, 0); |
374330e2 |
391 | } |
c83de303 |
392 | } else if (newrows < rows) { |
393 | for (i = newrows; i < rows; i++) { |
394 | line = delpos234(screen, 0); |
395 | addpos234(scrollback, line, sblen++); |
396 | } |
397 | } |
398 | assert(count234(screen) == newrows); |
399 | while (sblen > newsavelines) { |
400 | line = delpos234(scrollback, 0); |
401 | sfree(line); |
402 | sblen--; |
c9def1b8 |
403 | } |
c83de303 |
404 | assert(count234(scrollback) <= newsavelines); |
4facdf84 |
405 | disptop = 0; |
374330e2 |
406 | |
407 | newdisp = smalloc (newrows*(newcols+1)*TSIZE); |
408 | for (i=0; i<newrows*(newcols+1); i++) |
409 | newdisp[i] = ATTR_INVALID; |
410 | sfree (disptext); |
411 | disptext = newdisp; |
412 | |
413 | newwant = smalloc (newrows*(newcols+1)*TSIZE); |
414 | for (i=0; i<newrows*(newcols+1); i++) |
415 | newwant[i] = ATTR_INVALID; |
416 | sfree (wanttext); |
417 | wanttext = newwant; |
418 | |
4facdf84 |
419 | newalt = newtree234(NULL); |
420 | for (i=0; i<newrows; i++) { |
c83de303 |
421 | line = smalloc(TSIZE * (newcols+2)); |
422 | line[0] = newcols; |
4facdf84 |
423 | for (j = 0; j <= newcols; j++) |
c83de303 |
424 | line[j+1] = erase_char; |
4facdf84 |
425 | addpos234(newalt, line, i); |
426 | } |
427 | if (alt_screen) { |
428 | while (NULL != (line = delpos234(alt_screen, 0))) |
429 | sfree(line); |
430 | freetree234(alt_screen); |
431 | } |
432 | alt_screen = newalt; |
374330e2 |
433 | |
434 | sfree (selspace); |
435 | selspace = smalloc ( (newrows+newsavelines) * (newcols+sizeof(sel_nl)) ); |
436 | |
437 | tabs = srealloc (tabs, newcols*sizeof(*tabs)); |
438 | { |
439 | int i; |
440 | for (i = (cols > 0 ? cols : 0); i < newcols; i++) |
441 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
442 | } |
443 | |
444 | if (rows > 0) |
4facdf84 |
445 | curs.y += newrows - rows; |
446 | if (curs.y < 0) |
447 | curs.y = 0; |
448 | if (curs.y >= newrows) |
449 | curs.y = newrows-1; |
450 | if (curs.x >= newcols) |
451 | curs.x = newcols-1; |
374330e2 |
452 | alt_x = alt_y = 0; |
453 | wrapnext = alt_wnext = FALSE; |
454 | |
455 | rows = newrows; |
456 | cols = newcols; |
457 | savelines = newsavelines; |
458 | fix_cpos; |
459 | |
d6832394 |
460 | swap_screen(save_alt_which); |
461 | |
374330e2 |
462 | update_sbar(); |
463 | term_update(); |
464 | } |
465 | |
466 | /* |
467 | * Swap screens. |
468 | */ |
469 | static void swap_screen (int which) { |
470 | int t; |
4facdf84 |
471 | tree234 *ttr; |
374330e2 |
472 | |
473 | if (which == alt_which) |
474 | return; |
475 | |
476 | alt_which = which; |
477 | |
4facdf84 |
478 | ttr = alt_screen; alt_screen = screen; screen = ttr; |
479 | t = curs.x; curs.x = alt_x; alt_x = t; |
480 | t = curs.y; curs.y = alt_y; alt_y = t; |
374330e2 |
481 | t = marg_t; marg_t = alt_t; alt_t = t; |
482 | t = marg_b; marg_b = alt_b; alt_b = t; |
483 | t = dec_om; dec_om = alt_om; alt_om = t; |
484 | t = wrap; wrap = alt_wrap; alt_wrap = t; |
485 | t = wrapnext; wrapnext = alt_wnext; alt_wnext = t; |
486 | t = insert; insert = alt_ins; alt_ins = t; |
487 | t = cset; cset = alt_cset; alt_cset = t; |
488 | |
489 | fix_cpos; |
490 | } |
491 | |
492 | /* |
374330e2 |
493 | * Update the scroll bar. |
494 | */ |
495 | static void update_sbar(void) { |
260f3dec |
496 | int nscroll; |
374330e2 |
497 | |
4facdf84 |
498 | nscroll = count234(scrollback); |
499 | |
500 | set_sbar (nscroll + rows, nscroll + disptop, rows); |
374330e2 |
501 | } |
502 | |
503 | /* |
504 | * Check whether the region bounded by the two pointers intersects |
505 | * the scroll region, and de-select the on-screen selection if so. |
506 | */ |
4facdf84 |
507 | static void check_selection (pos from, pos to) { |
508 | if (poslt(from, selend) && poslt(selstart, to)) |
374330e2 |
509 | deselect(); |
510 | } |
511 | |
512 | /* |
513 | * Scroll the screen. (`lines' is +ve for scrolling forward, -ve |
514 | * for backward.) `sb' is TRUE if the scrolling is permitted to |
515 | * affect the scrollback buffer. |
a4450583 |
516 | * |
517 | * NB this function invalidates all pointers into lines of the |
518 | * screen data structures. In particular, you MUST call fix_cpos |
519 | * after calling scroll() and before doing anything else that |
520 | * uses the cpos shortcut pointer. |
374330e2 |
521 | */ |
522 | static void scroll (int topline, int botline, int lines, int sb) { |
4facdf84 |
523 | unsigned long *line, *line2; |
524 | int i; |
c9def1b8 |
525 | |
7af9fa7f |
526 | if (topline != 0 || alt_which != 0) |
4facdf84 |
527 | sb = FALSE; |
528 | |
529 | if (lines < 0) { |
530 | while (lines < 0) { |
531 | line = delpos234(screen, botline); |
532 | for (i = 0; i < cols; i++) |
c83de303 |
533 | line[i+1] = erase_char; |
534 | line[cols+1] = 0; |
4facdf84 |
535 | addpos234(screen, line, topline); |
536 | |
537 | if (selstart.y >= topline && selstart.y <= botline) { |
538 | selstart.y++; |
539 | if (selstart.y > botline) { |
540 | selstart.y = botline; |
541 | selstart.x = 0; |
c9def1b8 |
542 | } |
c9def1b8 |
543 | } |
4facdf84 |
544 | if (selend.y >= topline && selend.y <= botline) { |
545 | selend.y++; |
546 | if (selend.y > botline) { |
547 | selend.y = botline; |
548 | selend.x = 0; |
c9def1b8 |
549 | } |
c9def1b8 |
550 | } |
c9def1b8 |
551 | |
4facdf84 |
552 | lines++; |
c9def1b8 |
553 | } |
374330e2 |
554 | } else { |
4facdf84 |
555 | while (lines > 0) { |
556 | line = delpos234(screen, topline); |
c83de303 |
557 | if (sb && savelines > 0) { |
4facdf84 |
558 | int sblen = count234(scrollback); |
559 | /* |
560 | * We must add this line to the scrollback. We'll |
561 | * remove a line from the top of the scrollback to |
562 | * replace it, or allocate a new one if the |
563 | * scrollback isn't full. |
564 | */ |
c83de303 |
565 | if (sblen == savelines) { |
4facdf84 |
566 | sblen--, line2 = delpos234(scrollback, 0); |
c83de303 |
567 | } else { |
568 | line2 = smalloc(TSIZE * (cols+2)); |
569 | line2[0] = cols; |
570 | } |
4facdf84 |
571 | addpos234(scrollback, line, sblen); |
572 | line = line2; |
573 | } |
574 | for (i = 0; i < cols; i++) |
c83de303 |
575 | line[i+1] = erase_char; |
576 | line[cols+1] = 0; |
4facdf84 |
577 | addpos234(screen, line, botline); |
578 | |
579 | if (selstart.y >= topline && selstart.y <= botline) { |
580 | selstart.y--; |
581 | if (selstart.y < topline) { |
582 | selstart.y = topline; |
583 | selstart.x = 0; |
584 | } |
585 | } |
586 | if (selend.y >= topline && selend.y <= botline) { |
587 | selend.y--; |
588 | if (selend.y < topline) { |
589 | selend.y = topline; |
590 | selend.x = 0; |
591 | } |
592 | } |
593 | |
594 | lines--; |
c9def1b8 |
595 | } |
374330e2 |
596 | } |
374330e2 |
597 | } |
598 | |
599 | /* |
600 | * Move the cursor to a given position, clipping at boundaries. We |
601 | * may or may not want to clip at the scroll margin: marg_clip is 0 |
602 | * not to, 1 to disallow _passing_ the margins, and 2 to disallow |
603 | * even _being_ outside the margins. |
604 | */ |
605 | static void move (int x, int y, int marg_clip) { |
606 | if (x < 0) |
607 | x = 0; |
608 | if (x >= cols) |
609 | x = cols-1; |
610 | if (marg_clip) { |
4facdf84 |
611 | if ((curs.y >= marg_t || marg_clip == 2) && y < marg_t) |
374330e2 |
612 | y = marg_t; |
4facdf84 |
613 | if ((curs.y <= marg_b || marg_clip == 2) && y > marg_b) |
374330e2 |
614 | y = marg_b; |
615 | } |
616 | if (y < 0) |
617 | y = 0; |
618 | if (y >= rows) |
619 | y = rows-1; |
4facdf84 |
620 | curs.x = x; |
621 | curs.y = y; |
374330e2 |
622 | fix_cpos; |
623 | wrapnext = FALSE; |
624 | } |
625 | |
626 | /* |
627 | * Save or restore the cursor and SGR mode. |
628 | */ |
629 | static void save_cursor(int save) { |
630 | if (save) { |
4facdf84 |
631 | savecurs = curs; |
374330e2 |
632 | save_attr = curr_attr; |
633 | save_cset = cset; |
634 | save_csattr = cset_attr[cset]; |
635 | } else { |
4facdf84 |
636 | curs = savecurs; |
c9def1b8 |
637 | /* Make sure the window hasn't shrunk since the save */ |
4facdf84 |
638 | if (curs.x >= cols) curs.x = cols-1; |
639 | if (curs.y >= rows) curs.y = rows-1; |
c9def1b8 |
640 | |
374330e2 |
641 | curr_attr = save_attr; |
642 | cset = save_cset; |
643 | cset_attr[cset] = save_csattr; |
644 | fix_cpos; |
e14a5a13 |
645 | if (use_bce) erase_char = (' ' |(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
374330e2 |
646 | } |
647 | } |
648 | |
649 | /* |
650 | * Erase a large portion of the screen: the whole screen, or the |
651 | * whole line, or parts thereof. |
652 | */ |
653 | static void erase_lots (int line_only, int from_begin, int to_end) { |
260f3dec |
654 | pos start, end; |
4facdf84 |
655 | int erase_lattr; |
656 | unsigned long *ldata; |
374330e2 |
657 | |
658 | if (line_only) { |
4facdf84 |
659 | start.y = curs.y; |
660 | start.x = 0; |
661 | end.y = curs.y + 1; |
662 | end.x = 0; |
663 | erase_lattr = FALSE; |
374330e2 |
664 | } else { |
4facdf84 |
665 | start.y = 0; |
666 | start.x = 0; |
667 | end.y = rows; |
668 | end.x = 0; |
669 | erase_lattr = TRUE; |
670 | } |
671 | if (!from_begin) { |
672 | start = curs; |
374330e2 |
673 | } |
4facdf84 |
674 | if (!to_end) { |
675 | end = curs; |
676 | } |
677 | check_selection (start, end); |
e14a5a13 |
678 | |
679 | /* Clear screen also forces a full window redraw, just in case. */ |
4facdf84 |
680 | if (start.y == 0 && start.x == 0 && end.y == rows) |
e14a5a13 |
681 | term_invalidate(); |
682 | |
4facdf84 |
683 | ldata = lineptr(start.y); |
684 | while (poslt(start, end)) { |
685 | if (start.y == cols && !erase_lattr) |
686 | ldata[start.x] &= ~ATTR_WRAPPED; |
687 | else |
688 | ldata[start.x] = erase_char; |
c83de303 |
689 | if (incpos(start) && start.y < rows) |
4facdf84 |
690 | ldata = lineptr(start.y); |
691 | } |
374330e2 |
692 | } |
693 | |
694 | /* |
695 | * Insert or delete characters within the current line. n is +ve if |
696 | * insertion is desired, and -ve for deletion. |
697 | */ |
698 | static void insch (int n) { |
699 | int dir = (n < 0 ? -1 : +1); |
700 | int m; |
4facdf84 |
701 | pos cursplus; |
702 | unsigned long *ldata; |
374330e2 |
703 | |
704 | n = (n < 0 ? -n : n); |
4facdf84 |
705 | if (n > cols - curs.x) |
706 | n = cols - curs.x; |
707 | m = cols - curs.x - n; |
708 | cursplus.y = curs.y; |
709 | cursplus.x = curs.x + n; |
710 | check_selection (curs, cursplus); |
711 | ldata = lineptr(curs.y); |
374330e2 |
712 | if (dir < 0) { |
4facdf84 |
713 | memmove (ldata + curs.x, ldata + curs.x + n, m*TSIZE); |
374330e2 |
714 | while (n--) |
4facdf84 |
715 | ldata[curs.x + m++] = erase_char; |
374330e2 |
716 | } else { |
4facdf84 |
717 | memmove (ldata + curs.x + n, ldata + curs.x, m*TSIZE); |
374330e2 |
718 | while (n--) |
4facdf84 |
719 | ldata[curs.x + n] = erase_char; |
374330e2 |
720 | } |
721 | } |
722 | |
723 | /* |
724 | * Toggle terminal mode `mode' to state `state'. (`query' indicates |
725 | * whether the mode is a DEC private one or a normal one.) |
726 | */ |
727 | static void toggle_mode (int mode, int query, int state) { |
7594731b |
728 | long ticks; |
374330e2 |
729 | if (query) switch (mode) { |
730 | case 1: /* application cursor keys */ |
731 | app_cursor_keys = state; |
732 | break; |
e14a5a13 |
733 | case 2: /* VT52 mode */ |
734 | vt52_mode = !state; |
735 | break; |
374330e2 |
736 | case 3: /* 80/132 columns */ |
737 | deselect(); |
e14a5a13 |
738 | request_resize (state ? 132 : 80, rows, 1); |
739 | reset_132 = state; |
374330e2 |
740 | break; |
741 | case 5: /* reverse video */ |
7594731b |
742 | /* |
743 | * Toggle reverse video. If we receive an OFF within the |
744 | * visual bell timeout period after an ON, we trigger an |
745 | * effective visual bell, so that ESC[?5hESC[?5l will |
746 | * always be an actually _visible_ visual bell. |
747 | */ |
748 | ticks = GetTickCount(); |
749 | if (rvideo && !state && /* we're turning it off */ |
750 | ticks < rvbell_timeout) { /* and it's not long since it was turned on */ |
751 | in_vbell = TRUE; /* we may clear rvideo but we set in_vbell */ |
752 | if (vbell_timeout < rvbell_timeout) /* don't move vbell end forward */ |
753 | vbell_timeout = rvbell_timeout; /* vbell end is at least then */ |
754 | } else if (!rvideo && state) { |
755 | /* This is an ON, so we notice the time and save it. */ |
756 | rvbell_timeout = ticks + VBELL_TIMEOUT; |
757 | } |
374330e2 |
758 | rvideo = state; |
cabfd08c |
759 | seen_disp_event = TRUE; |
e14a5a13 |
760 | if (state) term_update(); |
374330e2 |
761 | break; |
762 | case 6: /* DEC origin mode */ |
763 | dec_om = state; |
764 | break; |
765 | case 7: /* auto wrap */ |
766 | wrap = state; |
767 | break; |
c9def1b8 |
768 | case 8: /* auto key repeat */ |
769 | repeat_off = !state; |
770 | break; |
0965bee0 |
771 | case 10: /* set local edit mode */ |
772 | term_editing = state; |
773 | ldisc_send(NULL, 0); /* cause ldisc to notice changes */ |
774 | break; |
e14a5a13 |
775 | case 25: /* enable/disable cursor */ |
ec55b220 |
776 | compatibility2(OTHER,VT220); |
e14a5a13 |
777 | cursor_on = state; |
778 | seen_disp_event = TRUE; |
779 | break; |
374330e2 |
780 | case 47: /* alternate screen */ |
e14a5a13 |
781 | compatibility(OTHER); |
374330e2 |
782 | deselect(); |
783 | swap_screen (state); |
4facdf84 |
784 | disptop = 0; |
374330e2 |
785 | break; |
786 | } else switch (mode) { |
787 | case 4: /* set insert mode */ |
e14a5a13 |
788 | compatibility(VT102); |
374330e2 |
789 | insert = state; |
790 | break; |
e14a5a13 |
791 | case 12: /* set echo mode */ |
0965bee0 |
792 | term_echoing = !state; |
793 | ldisc_send(NULL, 0); /* cause ldisc to notice changes */ |
e14a5a13 |
794 | break; |
c9def1b8 |
795 | case 20: /* Return sends ... */ |
796 | cr_lf_return = state; |
797 | break; |
374330e2 |
798 | } |
799 | } |
800 | |
801 | /* |
802 | * Process an OSC sequence: set window title or icon name. |
803 | */ |
804 | static void do_osc(void) { |
805 | if (osc_w) { |
806 | while (osc_strlen--) |
807 | wordness[(unsigned char)osc_string[osc_strlen]] = esc_args[0]; |
808 | } else { |
809 | osc_string[osc_strlen] = '\0'; |
810 | switch (esc_args[0]) { |
811 | case 0: |
812 | case 1: |
813 | set_icon (osc_string); |
814 | if (esc_args[0] == 1) |
815 | break; |
816 | /* fall through: parameter 0 means set both */ |
817 | case 2: |
818 | case 21: |
819 | set_title (osc_string); |
820 | break; |
821 | } |
822 | } |
823 | } |
824 | |
825 | /* |
826 | * Remove everything currently in `inbuf' and stick it up on the |
827 | * in-memory display. There's a big state machine in here to |
828 | * process escape sequences... |
829 | */ |
830 | void term_out(void) { |
c9def1b8 |
831 | int c, inbuf_reap; |
832 | |
c9def1b8 |
833 | for(inbuf_reap = 0; inbuf_reap < inbuf_head; inbuf_reap++) |
834 | { |
835 | c = inbuf[inbuf_reap]; |
374330e2 |
836 | |
c9def1b8 |
837 | /* |
5fd04f07 |
838 | * Optionally log the session traffic to a file. Useful for |
839 | * debugging and possibly also useful for actual logging. |
840 | */ |
e1c8e0ed |
841 | logtraffic((unsigned char)c, LGTYP_DEBUG); |
842 | |
e14a5a13 |
843 | /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even |
844 | * be able to display 8-bit characters, but I'll let that go 'cause |
845 | * of i18n. |
846 | */ |
c9def1b8 |
847 | if( ( (c&0x60) == 0 || c == '\177') && |
848 | termstate < DO_CTRLS && |
e14a5a13 |
849 | ( (c&0x80) == 0 || has_compat(VT220))) { |
374330e2 |
850 | switch (c) { |
851 | case '\005': /* terminal type query */ |
e14a5a13 |
852 | /* Strictly speaking this is VT100 but a VT100 defaults to |
853 | * no response. Other terminals respond at their option. |
854 | * |
855 | * Don't put a CR in the default string as this tends to |
856 | * upset some weird software. |
857 | * |
858 | * An xterm returns "xterm" (5 characters) |
859 | */ |
e7fbcdd8 |
860 | compatibility(ANSIMIN); |
861 | { |
862 | char abuf[256], *s, *d; |
863 | int state=0; |
864 | for(s=cfg.answerback, d=abuf; *s; s++) { |
865 | if (state) |
866 | { |
867 | if (*s >= 'a' && *s <= 'z') |
868 | *d++ = (*s - ('a'-1)); |
869 | else if ((*s >='@' && *s<='_') || |
870 | *s == '?' || (*s&0x80)) |
871 | *d++ = ('@'^*s); |
872 | else if (*s == '~') |
873 | *d++ = '^'; |
874 | state = 0; |
875 | } |
876 | else if (*s == '^') { |
877 | state = 1; |
878 | } |
879 | else |
880 | *d++ = xlat_kbd2tty((unsigned char)*s); |
881 | } |
882 | ldisc_send (abuf, d-abuf); |
883 | } |
374330e2 |
884 | break; |
885 | case '\007': |
156686ef |
886 | { |
887 | struct beeptime *newbeep; |
888 | long ticks; |
889 | |
890 | ticks = GetTickCount(); |
156686ef |
891 | |
892 | if (!beep_overloaded) { |
893 | newbeep = smalloc(sizeof(struct beeptime)); |
894 | newbeep->ticks = ticks; |
895 | newbeep->next = NULL; |
896 | if (!beephead) |
897 | beephead = newbeep; |
898 | else |
899 | beeptail->next = newbeep; |
900 | beeptail = newbeep; |
901 | nbeeps++; |
902 | } |
903 | |
904 | /* |
905 | * Throw out any beeps that happened more than |
906 | * t seconds ago. |
907 | */ |
908 | while (beephead && |
7f4968e6 |
909 | beephead->ticks < ticks - cfg.bellovl_t) { |
156686ef |
910 | struct beeptime *tmp = beephead; |
911 | beephead = tmp->next; |
156686ef |
912 | sfree(tmp); |
913 | if (!beephead) |
914 | beeptail = NULL; |
915 | nbeeps--; |
916 | } |
917 | |
918 | if (cfg.bellovl && beep_overloaded && |
7f4968e6 |
919 | ticks-lastbeep >= cfg.bellovl_s) { |
156686ef |
920 | /* |
921 | * If we're currently overloaded and the |
922 | * last beep was more than s seconds ago, |
923 | * leave overload mode. |
924 | */ |
156686ef |
925 | beep_overloaded = FALSE; |
926 | } else if (cfg.bellovl && !beep_overloaded && |
927 | nbeeps >= cfg.bellovl_n) { |
928 | /* |
929 | * Now, if we have n or more beeps |
930 | * remaining in the queue, go into overload |
931 | * mode. |
932 | */ |
156686ef |
933 | beep_overloaded = TRUE; |
934 | } |
935 | lastbeep = ticks; |
936 | |
937 | /* |
938 | * Perform an actual beep if we're not overloaded. |
939 | */ |
940 | if ((!cfg.bellovl || !beep_overloaded) && cfg.beep != 0) { |
156686ef |
941 | if (cfg.beep != 2) |
942 | beep(cfg.beep); |
943 | else if(cfg.beep == 2) { |
944 | in_vbell = TRUE; |
945 | vbell_timeout = ticks + VBELL_TIMEOUT; |
946 | term_update(); |
947 | } |
948 | } |
4facdf84 |
949 | disptop = 0; |
156686ef |
950 | } |
374330e2 |
951 | break; |
952 | case '\b': |
4facdf84 |
953 | if (curs.x == 0 && curs.y == 0) |
c9def1b8 |
954 | ; |
4facdf84 |
955 | else if (curs.x == 0 && curs.y > 0) |
956 | curs.x = cols-1, curs.y--; |
374330e2 |
957 | else if (wrapnext) |
958 | wrapnext = FALSE; |
959 | else |
4facdf84 |
960 | curs.x--; |
374330e2 |
961 | fix_cpos; |
cabfd08c |
962 | seen_disp_event = TRUE; |
374330e2 |
963 | break; |
964 | case '\016': |
e14a5a13 |
965 | compatibility(VT100); |
374330e2 |
966 | cset = 1; |
967 | break; |
968 | case '\017': |
e14a5a13 |
969 | compatibility(VT100); |
374330e2 |
970 | cset = 0; |
971 | break; |
972 | case '\033': |
e14a5a13 |
973 | if (vt52_mode) |
974 | termstate = VT52_ESC; |
975 | else { |
976 | compatibility(ANSIMIN); |
977 | termstate = SEEN_ESC; |
978 | } |
374330e2 |
979 | break; |
980 | case 0233: |
e14a5a13 |
981 | compatibility(VT220); |
374330e2 |
982 | termstate = SEEN_CSI; |
983 | esc_nargs = 1; |
984 | esc_args[0] = ARG_DEFAULT; |
985 | esc_query = FALSE; |
986 | break; |
987 | case 0235: |
e14a5a13 |
988 | compatibility(VT220); |
374330e2 |
989 | termstate = SEEN_OSC; |
990 | esc_args[0] = 0; |
991 | break; |
992 | case '\r': |
4facdf84 |
993 | curs.x = 0; |
374330e2 |
994 | wrapnext = FALSE; |
995 | fix_cpos; |
cabfd08c |
996 | seen_disp_event = TRUE; |
c9def1b8 |
997 | paste_hold = 0; |
e1c8e0ed |
998 | logtraffic((unsigned char)c,LGTYP_ASCII); |
374330e2 |
999 | break; |
1000 | case '\013': |
1001 | case '\014': |
e14a5a13 |
1002 | compatibility(VT100); |
374330e2 |
1003 | case '\n': |
4facdf84 |
1004 | if (curs.y == marg_b) |
374330e2 |
1005 | scroll (marg_t, marg_b, 1, TRUE); |
4facdf84 |
1006 | else if (curs.y < rows-1) |
1007 | curs.y++; |
cabfd08c |
1008 | if (cfg.lfhascr) |
4facdf84 |
1009 | curs.x = 0; |
374330e2 |
1010 | fix_cpos; |
1011 | wrapnext = FALSE; |
cabfd08c |
1012 | seen_disp_event = 1; |
c9def1b8 |
1013 | paste_hold = 0; |
e1c8e0ed |
1014 | logtraffic((unsigned char)c,LGTYP_ASCII); |
374330e2 |
1015 | break; |
1016 | case '\t': |
374330e2 |
1017 | { |
4facdf84 |
1018 | pos old_curs = curs; |
1019 | unsigned long *ldata = lineptr(curs.y); |
c9def1b8 |
1020 | |
1021 | do { |
4facdf84 |
1022 | curs.x++; |
1023 | } while (curs.x < cols-1 && !tabs[curs.x]); |
c9def1b8 |
1024 | |
4facdf84 |
1025 | if ((ldata[cols] & LATTR_MODE) != LATTR_NORM) |
c9def1b8 |
1026 | { |
4facdf84 |
1027 | if (curs.x >= cols/2) |
1028 | curs.x = cols/2-1; |
c9def1b8 |
1029 | } |
1030 | else |
1031 | { |
4facdf84 |
1032 | if (curs.x >= cols) |
1033 | curs.x = cols-1; |
c9def1b8 |
1034 | } |
1035 | |
374330e2 |
1036 | fix_cpos; |
4facdf84 |
1037 | check_selection (old_curs, curs); |
374330e2 |
1038 | } |
cabfd08c |
1039 | seen_disp_event = TRUE; |
374330e2 |
1040 | break; |
1ec0fa4b |
1041 | case '\177': /* Destructive backspace |
ec55b220 |
1042 | This does nothing on a real VT100 */ |
1043 | compatibility(OTHER); |
4facdf84 |
1044 | if (curs.x && !wrapnext) curs.x--; |
ec55b220 |
1045 | wrapnext = FALSE; |
1046 | fix_cpos; |
1047 | *cpos = (' ' | curr_attr | ATTR_ASCII); |
1048 | break; |
cabfd08c |
1049 | } |
1050 | } |
1051 | else switch (termstate) { |
1052 | case TOPLEVEL: |
4facdf84 |
1053 | /* Only graphic characters get this far, ctrls are stripped above */ |
1ec0fa4b |
1054 | if (wrapnext && wrap) { |
c9def1b8 |
1055 | cpos[1] |= ATTR_WRAPPED; |
4facdf84 |
1056 | if (curs.y == marg_b) |
8b811b12 |
1057 | scroll (marg_t, marg_b, 1, TRUE); |
4facdf84 |
1058 | else if (curs.y < rows-1) |
1059 | curs.y++; |
1060 | curs.x = 0; |
8b811b12 |
1061 | fix_cpos; |
1062 | wrapnext = FALSE; |
8b811b12 |
1063 | } |
1064 | if (insert) |
1065 | insch (1); |
4facdf84 |
1066 | if (selstate != NO_SELECTION) { |
1067 | pos cursplus = curs; |
1068 | incpos(cursplus); |
1069 | check_selection (curs, cursplus); |
1070 | } |
e14a5a13 |
1071 | switch (cset_attr[cset]) { |
4facdf84 |
1072 | /* |
1073 | * Linedraw characters are different from 'ESC ( B' |
1074 | * only for a small range. For ones outside that |
1075 | * range, make sure we use the same font as well as |
1076 | * the same encoding. |
e14a5a13 |
1077 | */ |
1078 | case ATTR_LINEDRW: |
ec55b220 |
1079 | if (c<0x5f || c>0x7F) |
e14a5a13 |
1080 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
1081 | ATTR_ASCII; |
ec55b220 |
1082 | else if (c==0x5F) |
4facdf84 |
1083 | *cpos++ = ' ' | curr_attr | ATTR_ASCII; |
e14a5a13 |
1084 | else |
1085 | *cpos++ = ((unsigned char)c) | curr_attr | ATTR_LINEDRW; |
1086 | break; |
ec55b220 |
1087 | case ATTR_GBCHR: |
1088 | /* If UK-ASCII, make the '#' a LineDraw Pound */ |
1089 | if (c == '#') { |
1090 | *cpos++ = '}' | curr_attr | ATTR_LINEDRW; |
1091 | break; |
1092 | } |
1093 | /*FALLTHROUGH*/ |
e14a5a13 |
1094 | default: |
e1c8e0ed |
1095 | *cpos = xlat_tty2scr((unsigned char)c) | curr_attr | |
e14a5a13 |
1096 | (c <= 0x7F ? cset_attr[cset] : ATTR_ASCII); |
e1c8e0ed |
1097 | logtraffic((unsigned char)c, LGTYP_ASCII); |
1098 | cpos++; |
e14a5a13 |
1099 | break; |
1100 | } |
4facdf84 |
1101 | curs.x++; |
1102 | if (curs.x == cols) { |
8b811b12 |
1103 | cpos--; |
4facdf84 |
1104 | curs.x--; |
1ec0fa4b |
1105 | wrapnext = TRUE; |
374330e2 |
1106 | } |
8b811b12 |
1107 | seen_disp_event = 1; |
374330e2 |
1108 | break; |
cabfd08c |
1109 | |
374330e2 |
1110 | case IGNORE_NEXT: |
1111 | termstate = TOPLEVEL; |
1112 | break; |
1113 | case OSC_MAYBE_ST: |
1114 | /* |
1115 | * This state is virtually identical to SEEN_ESC, with the |
1116 | * exception that we have an OSC sequence in the pipeline, |
1117 | * and _if_ we see a backslash, we process it. |
1118 | */ |
1119 | if (c == '\\') { |
1120 | do_osc(); |
1121 | termstate = TOPLEVEL; |
1122 | break; |
1123 | } |
1124 | /* else fall through */ |
1125 | case SEEN_ESC: |
1126 | termstate = TOPLEVEL; |
1127 | switch (c) { |
374330e2 |
1128 | case ' ': /* some weird sequence? */ |
e14a5a13 |
1129 | compatibility(VT220); |
374330e2 |
1130 | termstate = IGNORE_NEXT; |
1131 | break; |
1132 | case '[': /* enter CSI mode */ |
1133 | termstate = SEEN_CSI; |
1134 | esc_nargs = 1; |
1135 | esc_args[0] = ARG_DEFAULT; |
1136 | esc_query = FALSE; |
1137 | break; |
1138 | case ']': /* xterm escape sequences */ |
e14a5a13 |
1139 | /* Compatibility is nasty here, xterm, linux, decterm yuk! */ |
1140 | compatibility(OTHER); |
374330e2 |
1141 | termstate = SEEN_OSC; |
1142 | esc_args[0] = 0; |
1143 | break; |
1144 | case '(': /* should set GL */ |
e14a5a13 |
1145 | compatibility(VT100); |
374330e2 |
1146 | termstate = SET_GL; |
1147 | break; |
1148 | case ')': /* should set GR */ |
e14a5a13 |
1149 | compatibility(VT100); |
374330e2 |
1150 | termstate = SET_GR; |
1151 | break; |
1152 | case '7': /* save cursor */ |
e14a5a13 |
1153 | compatibility(VT100); |
374330e2 |
1154 | save_cursor (TRUE); |
1155 | break; |
1156 | case '8': /* restore cursor */ |
e14a5a13 |
1157 | compatibility(VT100); |
374330e2 |
1158 | save_cursor (FALSE); |
cabfd08c |
1159 | seen_disp_event = TRUE; |
374330e2 |
1160 | break; |
1161 | case '=': |
e14a5a13 |
1162 | compatibility(VT100); |
374330e2 |
1163 | app_keypad_keys = TRUE; |
1164 | break; |
1165 | case '>': |
e14a5a13 |
1166 | compatibility(VT100); |
374330e2 |
1167 | app_keypad_keys = FALSE; |
1168 | break; |
1169 | case 'D': /* exactly equivalent to LF */ |
e14a5a13 |
1170 | compatibility(VT100); |
4facdf84 |
1171 | if (curs.y == marg_b) |
374330e2 |
1172 | scroll (marg_t, marg_b, 1, TRUE); |
4facdf84 |
1173 | else if (curs.y < rows-1) |
1174 | curs.y++; |
374330e2 |
1175 | fix_cpos; |
1176 | wrapnext = FALSE; |
cabfd08c |
1177 | seen_disp_event = TRUE; |
374330e2 |
1178 | break; |
1179 | case 'E': /* exactly equivalent to CR-LF */ |
e14a5a13 |
1180 | compatibility(VT100); |
4facdf84 |
1181 | curs.x = 0; |
1182 | if (curs.y == marg_b) |
374330e2 |
1183 | scroll (marg_t, marg_b, 1, TRUE); |
4facdf84 |
1184 | else if (curs.y < rows-1) |
1185 | curs.y++; |
374330e2 |
1186 | fix_cpos; |
1187 | wrapnext = FALSE; |
cabfd08c |
1188 | seen_disp_event = TRUE; |
374330e2 |
1189 | break; |
1190 | case 'M': /* reverse index - backwards LF */ |
e14a5a13 |
1191 | compatibility(VT100); |
4facdf84 |
1192 | if (curs.y == marg_t) |
374330e2 |
1193 | scroll (marg_t, marg_b, -1, TRUE); |
4facdf84 |
1194 | else if (curs.y > 0) |
1195 | curs.y--; |
374330e2 |
1196 | fix_cpos; |
1197 | wrapnext = FALSE; |
cabfd08c |
1198 | seen_disp_event = TRUE; |
374330e2 |
1199 | break; |
1200 | case 'Z': /* terminal type query */ |
e14a5a13 |
1201 | compatibility(VT100); |
0965bee0 |
1202 | ldisc_send (id_string, strlen(id_string)); |
374330e2 |
1203 | break; |
1204 | case 'c': /* restore power-on settings */ |
e14a5a13 |
1205 | compatibility(VT100); |
374330e2 |
1206 | power_on(); |
e14a5a13 |
1207 | if (reset_132) { |
1208 | request_resize (80, rows, 1); |
1209 | reset_132 = 0; |
1210 | } |
374330e2 |
1211 | fix_cpos; |
4facdf84 |
1212 | disptop = 0; |
cabfd08c |
1213 | seen_disp_event = TRUE; |
374330e2 |
1214 | break; |
1215 | case '#': /* ESC # 8 fills screen with Es :-) */ |
e14a5a13 |
1216 | compatibility(VT100); |
374330e2 |
1217 | termstate = SEEN_ESCHASH; |
1218 | break; |
1219 | case 'H': /* set a tab */ |
e14a5a13 |
1220 | compatibility(VT100); |
4facdf84 |
1221 | tabs[curs.x] = TRUE; |
374330e2 |
1222 | break; |
1223 | } |
1224 | break; |
1225 | case SEEN_CSI: |
1226 | termstate = TOPLEVEL; /* default */ |
8b811b12 |
1227 | if( isdigit(c) ) |
1228 | { |
374330e2 |
1229 | if (esc_nargs <= ARGS_MAX) { |
1230 | if (esc_args[esc_nargs-1] == ARG_DEFAULT) |
1231 | esc_args[esc_nargs-1] = 0; |
1232 | esc_args[esc_nargs-1] = |
1233 | 10 * esc_args[esc_nargs-1] + c - '0'; |
1234 | } |
1235 | termstate = SEEN_CSI; |
8b811b12 |
1236 | } |
1237 | else if( c == ';' ) |
1238 | { |
374330e2 |
1239 | if (++esc_nargs <= ARGS_MAX) |
1240 | esc_args[esc_nargs-1] = ARG_DEFAULT; |
1241 | termstate = SEEN_CSI; |
8b811b12 |
1242 | } |
1243 | else if( c < '@' ) |
1244 | { |
1245 | if( esc_query ) esc_query = -1; |
1246 | else if( c == '?' ) esc_query = TRUE; |
1247 | else esc_query = c; |
374330e2 |
1248 | termstate = SEEN_CSI; |
8b811b12 |
1249 | } |
1250 | else switch (ANSI(c,esc_query)) { |
374330e2 |
1251 | case 'A': /* move up N lines */ |
4facdf84 |
1252 | move (curs.x, curs.y - def(esc_args[0], 1), 1); |
cabfd08c |
1253 | seen_disp_event = TRUE; |
374330e2 |
1254 | break; |
e14a5a13 |
1255 | case 'e': /* move down N lines */ |
1256 | compatibility(ANSI); |
1257 | case 'B': |
4facdf84 |
1258 | move (curs.x, curs.y + def(esc_args[0], 1), 1); |
cabfd08c |
1259 | seen_disp_event = TRUE; |
374330e2 |
1260 | break; |
e14a5a13 |
1261 | case 'a': /* move right N cols */ |
1262 | compatibility(ANSI); |
1263 | case 'C': |
4facdf84 |
1264 | move (curs.x + def(esc_args[0], 1), curs.y, 1); |
cabfd08c |
1265 | seen_disp_event = TRUE; |
374330e2 |
1266 | break; |
1267 | case 'D': /* move left N cols */ |
4facdf84 |
1268 | move (curs.x - def(esc_args[0], 1), curs.y, 1); |
cabfd08c |
1269 | seen_disp_event = TRUE; |
374330e2 |
1270 | break; |
1271 | case 'E': /* move down N lines and CR */ |
e14a5a13 |
1272 | compatibility(ANSI); |
4facdf84 |
1273 | move (0, curs.y + def(esc_args[0], 1), 1); |
cabfd08c |
1274 | seen_disp_event = TRUE; |
374330e2 |
1275 | break; |
1276 | case 'F': /* move up N lines and CR */ |
e14a5a13 |
1277 | compatibility(ANSI); |
4facdf84 |
1278 | move (0, curs.y - def(esc_args[0], 1), 1); |
cabfd08c |
1279 | seen_disp_event = TRUE; |
374330e2 |
1280 | break; |
1281 | case 'G': case '`': /* set horizontal posn */ |
e14a5a13 |
1282 | compatibility(ANSI); |
4facdf84 |
1283 | move (def(esc_args[0], 1) - 1, curs.y, 0); |
cabfd08c |
1284 | seen_disp_event = TRUE; |
374330e2 |
1285 | break; |
1286 | case 'd': /* set vertical posn */ |
e14a5a13 |
1287 | compatibility(ANSI); |
4facdf84 |
1288 | move (curs.x, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
374330e2 |
1289 | (dec_om ? 2 : 0)); |
cabfd08c |
1290 | seen_disp_event = TRUE; |
374330e2 |
1291 | break; |
1292 | case 'H': case 'f': /* set horz and vert posns at once */ |
1293 | if (esc_nargs < 2) |
1294 | esc_args[1] = ARG_DEFAULT; |
1295 | move (def(esc_args[1], 1) - 1, |
1296 | (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
1297 | (dec_om ? 2 : 0)); |
cabfd08c |
1298 | seen_disp_event = TRUE; |
374330e2 |
1299 | break; |
1300 | case 'J': /* erase screen or parts of it */ |
1301 | { |
1302 | unsigned int i = def(esc_args[0], 0) + 1; |
1303 | if (i > 3) |
1304 | i = 0; |
1305 | erase_lots(FALSE, !!(i & 2), !!(i & 1)); |
1306 | } |
4facdf84 |
1307 | disptop = 0; |
cabfd08c |
1308 | seen_disp_event = TRUE; |
374330e2 |
1309 | break; |
1310 | case 'K': /* erase line or parts of it */ |
1311 | { |
1312 | unsigned int i = def(esc_args[0], 0) + 1; |
1313 | if (i > 3) |
1314 | i = 0; |
1315 | erase_lots(TRUE, !!(i & 2), !!(i & 1)); |
1316 | } |
cabfd08c |
1317 | seen_disp_event = TRUE; |
374330e2 |
1318 | break; |
1319 | case 'L': /* insert lines */ |
e14a5a13 |
1320 | compatibility(VT102); |
4facdf84 |
1321 | if (curs.y <= marg_b) |
1322 | scroll (curs.y, marg_b, -def(esc_args[0], 1), FALSE); |
a4450583 |
1323 | fix_cpos; |
cabfd08c |
1324 | seen_disp_event = TRUE; |
374330e2 |
1325 | break; |
1326 | case 'M': /* delete lines */ |
e14a5a13 |
1327 | compatibility(VT102); |
4facdf84 |
1328 | if (curs.y <= marg_b) |
1329 | scroll (curs.y, marg_b, def(esc_args[0], 1), TRUE); |
a4450583 |
1330 | fix_cpos; |
cabfd08c |
1331 | seen_disp_event = TRUE; |
374330e2 |
1332 | break; |
1333 | case '@': /* insert chars */ |
e14a5a13 |
1334 | /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ |
1335 | compatibility(VT102); |
374330e2 |
1336 | insch (def(esc_args[0], 1)); |
cabfd08c |
1337 | seen_disp_event = TRUE; |
374330e2 |
1338 | break; |
1339 | case 'P': /* delete chars */ |
e14a5a13 |
1340 | compatibility(VT102); |
374330e2 |
1341 | insch (-def(esc_args[0], 1)); |
cabfd08c |
1342 | seen_disp_event = TRUE; |
374330e2 |
1343 | break; |
1344 | case 'c': /* terminal type query */ |
e14a5a13 |
1345 | compatibility(VT100); |
1346 | /* This is the response for a VT102 */ |
0965bee0 |
1347 | ldisc_send (id_string, strlen(id_string)); |
374330e2 |
1348 | break; |
1349 | case 'n': /* cursor position query */ |
1350 | if (esc_args[0] == 6) { |
1351 | char buf[32]; |
4facdf84 |
1352 | sprintf (buf, "\033[%d;%dR", curs.y + 1, curs.x + 1); |
0965bee0 |
1353 | ldisc_send (buf, strlen(buf)); |
374330e2 |
1354 | } |
e14a5a13 |
1355 | else if (esc_args[0] == 5) { |
0965bee0 |
1356 | ldisc_send ("\033[0n", 4); |
e14a5a13 |
1357 | } |
374330e2 |
1358 | break; |
e14a5a13 |
1359 | case 'h': /* toggle modes to high */ |
8b811b12 |
1360 | case ANSI_QUE('h'): |
e14a5a13 |
1361 | compatibility(VT100); |
1362 | { |
1363 | int i; |
1364 | for (i=0; i<esc_nargs; i++) |
1365 | toggle_mode (esc_args[i], esc_query, TRUE); |
1366 | } |
374330e2 |
1367 | break; |
e14a5a13 |
1368 | case 'l': /* toggle modes to low */ |
8b811b12 |
1369 | case ANSI_QUE('l'): |
e14a5a13 |
1370 | compatibility(VT100); |
1371 | { |
1372 | int i; |
1373 | for (i=0; i<esc_nargs; i++) |
1374 | toggle_mode (esc_args[i], esc_query, FALSE); |
1375 | } |
374330e2 |
1376 | break; |
1377 | case 'g': /* clear tabs */ |
e14a5a13 |
1378 | compatibility(VT100); |
374330e2 |
1379 | if (esc_nargs == 1) { |
1380 | if (esc_args[0] == 0) { |
4facdf84 |
1381 | tabs[curs.x] = FALSE; |
374330e2 |
1382 | } else if (esc_args[0] == 3) { |
1383 | int i; |
1384 | for (i = 0; i < cols; i++) |
1385 | tabs[i] = FALSE; |
1386 | } |
1387 | } |
1388 | break; |
1389 | case 'r': /* set scroll margins */ |
e14a5a13 |
1390 | compatibility(VT100); |
8b811b12 |
1391 | if (esc_nargs <= 2) { |
374330e2 |
1392 | int top, bot; |
7e394092 |
1393 | top = def(esc_args[0], 1) - 1; |
1394 | bot = (esc_nargs <= 1 || esc_args[1] == 0 ? rows : |
1395 | def(esc_args[1], rows)) - 1; |
374330e2 |
1396 | if (bot >= rows) |
1397 | bot = rows-1; |
7e394092 |
1398 | /* VTTEST Bug 9 - if region is less than 2 lines |
1399 | * don't change region. |
1400 | */ |
83ea993b |
1401 | if (bot-top > 0) { |
374330e2 |
1402 | marg_t = top; |
1403 | marg_b = bot; |
4facdf84 |
1404 | curs.x = 0; |
374330e2 |
1405 | /* |
1406 | * I used to think the cursor should be |
1407 | * placed at the top of the newly marginned |
1408 | * area. Apparently not: VMS TPU falls over |
1409 | * if so. |
e14a5a13 |
1410 | * |
1411 | * Well actually it should for Origin mode - RDB |
374330e2 |
1412 | */ |
4facdf84 |
1413 | curs.y = (dec_om ? marg_t : 0); |
374330e2 |
1414 | fix_cpos; |
cabfd08c |
1415 | seen_disp_event = TRUE; |
374330e2 |
1416 | } |
1417 | } |
1418 | break; |
1419 | case 'm': /* set graphics rendition */ |
1420 | { |
e14a5a13 |
1421 | /* |
1422 | * A VT100 without the AVO only had one attribute, either |
1423 | * underline or reverse video depending on the cursor type, |
1424 | * this was selected by CSI 7m. |
1425 | * |
1426 | * case 2: |
1427 | * This is DIM on the VT100-AVO and VT102 |
1428 | * case 5: |
1429 | * This is BLINK on the VT100-AVO and VT102+ |
1430 | * case 8: |
1431 | * This is INVIS on the VT100-AVO and VT102 |
1432 | * case 21: |
1433 | * This like 22 disables BOLD, DIM and INVIS |
1434 | * |
1435 | * The ANSI colours appear on any terminal that has colour |
1436 | * (obviously) but the interaction between sgr0 and the |
1437 | * colours varies but is usually related to the background |
1438 | * colour erase item. |
1439 | * The interaction between colour attributes and the mono |
1440 | * ones is also very implementation dependent. |
1441 | * |
1442 | * The 39 and 49 attributes are likely to be unimplemented. |
1443 | */ |
374330e2 |
1444 | int i; |
1445 | for (i=0; i<esc_nargs; i++) { |
1446 | switch (def(esc_args[i], 0)) { |
1447 | case 0: /* restore defaults */ |
1448 | curr_attr = ATTR_DEFAULT; break; |
1449 | case 1: /* enable bold */ |
e14a5a13 |
1450 | compatibility(VT100AVO); |
374330e2 |
1451 | curr_attr |= ATTR_BOLD; break; |
374330e2 |
1452 | case 21: /* (enable double underline) */ |
e14a5a13 |
1453 | compatibility(OTHER); |
1454 | case 4: /* enable underline */ |
1455 | compatibility(VT100AVO); |
374330e2 |
1456 | curr_attr |= ATTR_UNDER; break; |
e14a5a13 |
1457 | case 5: /* enable blink */ |
1458 | compatibility(VT100AVO); |
1459 | curr_attr |= ATTR_BLINK; break; |
374330e2 |
1460 | case 7: /* enable reverse video */ |
1461 | curr_attr |= ATTR_REVERSE; break; |
1462 | case 22: /* disable bold */ |
ec55b220 |
1463 | compatibility2(OTHER,VT220); |
374330e2 |
1464 | curr_attr &= ~ATTR_BOLD; break; |
1465 | case 24: /* disable underline */ |
ec55b220 |
1466 | compatibility2(OTHER,VT220); |
374330e2 |
1467 | curr_attr &= ~ATTR_UNDER; break; |
e14a5a13 |
1468 | case 25: /* disable blink */ |
ec55b220 |
1469 | compatibility2(OTHER,VT220); |
e14a5a13 |
1470 | curr_attr &= ~ATTR_BLINK; break; |
374330e2 |
1471 | case 27: /* disable reverse video */ |
ec55b220 |
1472 | compatibility2(OTHER,VT220); |
374330e2 |
1473 | curr_attr &= ~ATTR_REVERSE; break; |
1474 | case 30: case 31: case 32: case 33: |
1475 | case 34: case 35: case 36: case 37: |
1476 | /* foreground */ |
1477 | curr_attr &= ~ATTR_FGMASK; |
1478 | curr_attr |= (esc_args[i] - 30) << ATTR_FGSHIFT; |
1479 | break; |
1480 | case 39: /* default-foreground */ |
1481 | curr_attr &= ~ATTR_FGMASK; |
1482 | curr_attr |= ATTR_DEFFG; |
1483 | break; |
1484 | case 40: case 41: case 42: case 43: |
1485 | case 44: case 45: case 46: case 47: |
1486 | /* background */ |
1487 | curr_attr &= ~ATTR_BGMASK; |
1488 | curr_attr |= (esc_args[i] - 40) << ATTR_BGSHIFT; |
1489 | break; |
1490 | case 49: /* default-background */ |
1491 | curr_attr &= ~ATTR_BGMASK; |
1492 | curr_attr |= ATTR_DEFBG; |
1493 | break; |
1494 | } |
1495 | } |
e14a5a13 |
1496 | if (use_bce) |
c9def1b8 |
1497 | erase_char = |
1498 | (' '| |
1499 | (curr_attr&(ATTR_FGMASK|ATTR_BGMASK|ATTR_BLINK)) |
1500 | ); |
374330e2 |
1501 | } |
1502 | break; |
1503 | case 's': /* save cursor */ |
1504 | save_cursor (TRUE); |
1505 | break; |
1506 | case 'u': /* restore cursor */ |
1507 | save_cursor (FALSE); |
cabfd08c |
1508 | seen_disp_event = TRUE; |
374330e2 |
1509 | break; |
1510 | case 't': /* set page size - ie window height */ |
e14a5a13 |
1511 | /* |
1512 | * VT340/VT420 sequence DECSLPP, DEC only allows values |
1513 | * 24/25/36/48/72/144 other emulators (eg dtterm) use |
1514 | * illegal values (eg first arg 1..9) for window changing |
1515 | * and reports. |
1516 | */ |
1517 | compatibility(VT340TEXT); |
1518 | if (esc_nargs<=1 && (esc_args[0]<1 || esc_args[0]>=24)) { |
c9def1b8 |
1519 | request_resize (cols, def(esc_args[0], 24), 0); |
e14a5a13 |
1520 | deselect(); |
1521 | } |
1522 | break; |
1523 | case ANSI('|', '*'): |
1524 | /* VT420 sequence DECSNLS |
1525 | * Set number of lines on screen |
1526 | * VT420 uses VGA like hardware and can support any size in |
1527 | * reasonable range (24..49 AIUI) with no default specified. |
1528 | */ |
1529 | compatibility(VT420); |
c9def1b8 |
1530 | if (esc_nargs==1 && esc_args[0]>0) { |
1531 | request_resize (cols, def(esc_args[0], cfg.height), 0); |
e14a5a13 |
1532 | deselect(); |
1533 | } |
1534 | break; |
1535 | case ANSI('|', '$'): |
1536 | /* VT340/VT420 sequence DECSCPP |
1537 | * Set number of columns per page |
1538 | * Docs imply range is only 80 or 132, but I'll allow any. |
1539 | */ |
1540 | compatibility(VT340TEXT); |
1541 | if (esc_nargs<=1) { |
c9def1b8 |
1542 | request_resize (def(esc_args[0], cfg.width), rows, 0); |
e14a5a13 |
1543 | deselect(); |
1544 | } |
374330e2 |
1545 | break; |
1546 | case 'X': /* write N spaces w/o moving cursor */ |
e14a5a13 |
1547 | /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ |
c9def1b8 |
1548 | compatibility(ANSIMIN); |
374330e2 |
1549 | { |
1550 | int n = def(esc_args[0], 1); |
4facdf84 |
1551 | pos cursplus; |
374330e2 |
1552 | unsigned long *p = cpos; |
4facdf84 |
1553 | if (n > cols - curs.x) |
1554 | n = cols - curs.x; |
1555 | cursplus = curs; |
1556 | cursplus.x += n; |
1557 | check_selection (curs, cursplus); |
374330e2 |
1558 | while (n--) |
e14a5a13 |
1559 | *p++ = erase_char; |
cabfd08c |
1560 | seen_disp_event = TRUE; |
374330e2 |
1561 | } |
1562 | break; |
1563 | case 'x': /* report terminal characteristics */ |
e14a5a13 |
1564 | compatibility(VT100); |
374330e2 |
1565 | { |
1566 | char buf[32]; |
1567 | int i = def(esc_args[0], 0); |
1568 | if (i == 0 || i == 1) { |
1569 | strcpy (buf, "\033[2;1;1;112;112;1;0x"); |
1570 | buf[2] += i; |
0965bee0 |
1571 | ldisc_send (buf, 20); |
374330e2 |
1572 | } |
1573 | } |
1574 | break; |
e14a5a13 |
1575 | case ANSI('L','='): |
1576 | compatibility(OTHER); |
1577 | use_bce = (esc_args[0]<=0); |
1578 | erase_char = ERASE_CHAR; |
1579 | if (use_bce) |
1580 | erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
1581 | break; |
c9def1b8 |
1582 | case ANSI('E','='): |
1583 | compatibility(OTHER); |
1584 | blink_is_real = (esc_args[0]>=1); |
1585 | break; |
e14a5a13 |
1586 | case ANSI('p','"'): |
1587 | /* Allow the host to make this emulator a 'perfect' VT102. |
1588 | * This first appeared in the VT220, but we do need to get |
1589 | * back to PuTTY mode so I won't check it. |
1590 | * |
ec55b220 |
1591 | * The arg in 40..42 are a PuTTY extension. |
1592 | * The 2nd arg, 8bit vs 7bit is not checked. |
e14a5a13 |
1593 | * |
1594 | * Setting VT102 mode should also change the Fkeys to |
1595 | * generate PF* codes as a real VT102 has no Fkeys. |
1596 | * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys |
1597 | * send nothing. |
1598 | * |
1599 | * Note ESC c will NOT change this! |
1600 | */ |
1601 | |
ec55b220 |
1602 | switch (esc_args[0]) { |
1603 | case 61: compatibility_level &= ~TM_VTXXX; |
1604 | compatibility_level |= TM_VT102; break; |
1605 | case 62: compatibility_level &= ~TM_VTXXX; |
1606 | compatibility_level |= TM_VT220; break; |
1607 | |
1608 | default: if( esc_args[0] > 60 && esc_args[0] < 70 ) |
1609 | compatibility_level |= TM_VTXXX; |
1610 | break; |
1611 | |
1612 | case 40: compatibility_level &= TM_VTXXX; break; |
1613 | case 41: compatibility_level = TM_PUTTY; break; |
1614 | case 42: compatibility_level = TM_SCOANSI; break; |
1615 | |
1616 | case ARG_DEFAULT: |
1617 | compatibility_level = TM_PUTTY; break; |
1618 | case 50: break; |
1619 | } |
1620 | |
1621 | /* Change the response to CSI c */ |
1622 | if (esc_args[0] == 50) { |
1623 | int i; |
1624 | char lbuf[64]; |
1625 | strcpy(id_string, "\033[?"); |
1626 | for (i=1; i<esc_nargs; i++) { |
1627 | if (i!=1) strcat(id_string, ";"); |
1628 | sprintf(lbuf, "%d", esc_args[i]); |
1629 | strcat(id_string, lbuf); |
1630 | } |
1631 | strcat(id_string, "c"); |
1632 | } |
1633 | |
1634 | #if 0 |
1635 | /* Is this a good idea ? |
1636 | * Well we should do a soft reset at this point ... |
1637 | */ |
1638 | if (!has_compat(VT420) && has_compat(VT100)) { |
1639 | if (reset_132) request_resize (132, 24, 1); |
1640 | else request_resize ( 80, 24, 1); |
1641 | } |
1642 | #endif |
e14a5a13 |
1643 | break; |
374330e2 |
1644 | } |
1645 | break; |
1646 | case SET_GL: |
1647 | case SET_GR: |
e14a5a13 |
1648 | /* VT100 only here, checked above */ |
374330e2 |
1649 | switch (c) { |
1650 | case 'A': |
1651 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_GBCHR; |
1652 | break; |
1653 | case '0': |
1654 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_LINEDRW; |
1655 | break; |
e14a5a13 |
1656 | case 'B': |
374330e2 |
1657 | default: /* specifically, 'B' */ |
1658 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_ASCII; |
1659 | break; |
1660 | } |
e14a5a13 |
1661 | if( !has_compat(VT220) || c != '%' ) |
8b811b12 |
1662 | termstate = TOPLEVEL; |
374330e2 |
1663 | break; |
1664 | case SEEN_OSC: |
1665 | osc_w = FALSE; |
1666 | switch (c) { |
374330e2 |
1667 | case 'P': /* Linux palette sequence */ |
1668 | termstate = SEEN_OSC_P; |
1669 | osc_strlen = 0; |
1670 | break; |
1671 | case 'R': /* Linux palette reset */ |
1672 | palette_reset(); |
1673 | term_invalidate(); |
1674 | termstate = TOPLEVEL; |
1675 | break; |
1676 | case 'W': /* word-set */ |
1677 | termstate = SEEN_OSC_W; |
1678 | osc_w = TRUE; |
1679 | break; |
1680 | case '0': case '1': case '2': case '3': case '4': |
1681 | case '5': case '6': case '7': case '8': case '9': |
1682 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1683 | break; |
1684 | case 'L': |
1685 | /* |
1686 | * Grotty hack to support xterm and DECterm title |
1687 | * sequences concurrently. |
1688 | */ |
1689 | if (esc_args[0] == 2) { |
1690 | esc_args[0] = 1; |
1691 | break; |
1692 | } |
1693 | /* else fall through */ |
1694 | default: |
1695 | termstate = OSC_STRING; |
1696 | osc_strlen = 0; |
1697 | } |
1698 | break; |
1699 | case OSC_STRING: |
8b811b12 |
1700 | /* |
1701 | * This OSC stuff is EVIL. It takes just one character to get into |
1702 | * sysline mode and it's not initially obvious how to get out. |
1703 | * So I've added CR and LF as string aborts. |
1704 | * This shouldn't effect compatibility as I believe embedded |
1705 | * control characters are supposed to be interpreted (maybe?) |
1706 | * and they don't display anything useful anyway. |
1707 | * |
1708 | * -- RDB |
1709 | */ |
1710 | if (c == '\n' || c == '\r') { |
1711 | termstate = TOPLEVEL; |
1712 | } else if (c == 0234 || c == '\007' ) { |
374330e2 |
1713 | /* |
1714 | * These characters terminate the string; ST and BEL |
1715 | * terminate the sequence and trigger instant |
1716 | * processing of it, whereas ESC goes back to SEEN_ESC |
1717 | * mode unless it is followed by \, in which case it is |
1718 | * synonymous with ST in the first place. |
1719 | */ |
1720 | do_osc(); |
1721 | termstate = TOPLEVEL; |
1722 | } else if (c == '\033') |
1723 | termstate = OSC_MAYBE_ST; |
1724 | else if (osc_strlen < OSC_STR_MAX) |
1725 | osc_string[osc_strlen++] = c; |
1726 | break; |
1727 | case SEEN_OSC_P: |
1728 | { |
1729 | int max = (osc_strlen == 0 ? 21 : 16); |
1730 | int val; |
1731 | if (c >= '0' && c <= '9') |
1732 | val = c - '0'; |
1733 | else if (c >= 'A' && c <= 'A'+max-10) |
1734 | val = c - 'A' + 10; |
1735 | else if (c >= 'a' && c <= 'a'+max-10) |
1736 | val = c - 'a' + 10; |
1737 | else |
1738 | termstate = TOPLEVEL; |
1739 | osc_string[osc_strlen++] = val; |
1740 | if (osc_strlen >= 7) { |
1741 | palette_set (osc_string[0], |
1742 | osc_string[1] * 16 + osc_string[2], |
1743 | osc_string[3] * 16 + osc_string[4], |
1744 | osc_string[5] * 16 + osc_string[6]); |
1745 | term_invalidate(); |
1746 | termstate = TOPLEVEL; |
1747 | } |
1748 | } |
1749 | break; |
1750 | case SEEN_OSC_W: |
1751 | switch (c) { |
374330e2 |
1752 | case '0': case '1': case '2': case '3': case '4': |
1753 | case '5': case '6': case '7': case '8': case '9': |
1754 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1755 | break; |
1756 | default: |
1757 | termstate = OSC_STRING; |
1758 | osc_strlen = 0; |
1759 | } |
1760 | break; |
1761 | case SEEN_ESCHASH: |
c9def1b8 |
1762 | { |
c9def1b8 |
1763 | unsigned long nlattr; |
4facdf84 |
1764 | unsigned long *ldata; |
1765 | int i, j; |
1766 | pos scrtop, scrbot; |
c9def1b8 |
1767 | |
1768 | switch (c) { |
1769 | case '8': |
4facdf84 |
1770 | for (i = 0; i < rows; i++) { |
1771 | ldata = lineptr(i); |
1772 | for (j = 0; j < cols; j++) |
1773 | ldata[j] = ATTR_DEFAULT | 'E'; |
1774 | ldata[cols] = 0; |
1775 | } |
1776 | disptop = 0; |
c9def1b8 |
1777 | seen_disp_event = TRUE; |
4facdf84 |
1778 | scrtop.x = scrtop.y = 0; |
1779 | scrbot.x = 0; scrbot.y = rows; |
1780 | check_selection (scrtop, scrbot); |
c9def1b8 |
1781 | break; |
1782 | |
4facdf84 |
1783 | case '3': nlattr = LATTR_TOP; goto lattr_common; |
1784 | case '4': nlattr = LATTR_BOT; goto lattr_common; |
1785 | case '5': nlattr = LATTR_NORM; goto lattr_common; |
1786 | case '6': nlattr = LATTR_WIDE; |
1787 | lattr_common: |
c9def1b8 |
1788 | |
4facdf84 |
1789 | ldata = lineptr(curs.y); |
1790 | ldata[cols] &= ~LATTR_MODE; |
1791 | ldata[cols] |= nlattr; |
c9def1b8 |
1792 | } |
374330e2 |
1793 | } |
1794 | termstate = TOPLEVEL; |
1795 | break; |
e14a5a13 |
1796 | case VT52_ESC: |
1797 | termstate = TOPLEVEL; |
1798 | seen_disp_event = TRUE; |
1799 | switch (c) { |
1800 | case 'A': |
4facdf84 |
1801 | move (curs.x, curs.y - 1, 1); |
e14a5a13 |
1802 | break; |
1803 | case 'B': |
4facdf84 |
1804 | move (curs.x, curs.y + 1, 1); |
e14a5a13 |
1805 | break; |
1806 | case 'C': |
4facdf84 |
1807 | move (curs.x + 1, curs.y, 1); |
e14a5a13 |
1808 | break; |
1809 | case 'D': |
4facdf84 |
1810 | move (curs.x - 1, curs.y, 1); |
e14a5a13 |
1811 | break; |
1812 | case 'F': |
1813 | cset_attr[cset=0] = ATTR_LINEDRW; |
1814 | break; |
1815 | case 'G': |
1816 | cset_attr[cset=0] = ATTR_ASCII; |
1817 | break; |
1818 | case 'H': |
1819 | move (0, 0, 0); |
1820 | break; |
1821 | case 'I': |
4facdf84 |
1822 | if (curs.y == 0) |
e14a5a13 |
1823 | scroll (0, rows-1, -1, TRUE); |
4facdf84 |
1824 | else if (curs.y > 0) |
1825 | curs.y--; |
e14a5a13 |
1826 | fix_cpos; |
1827 | wrapnext = FALSE; |
1828 | break; |
1829 | case 'J': |
1830 | erase_lots(FALSE, FALSE, TRUE); |
4facdf84 |
1831 | disptop = 0; |
e14a5a13 |
1832 | break; |
1833 | case 'K': |
1834 | erase_lots(TRUE, FALSE, TRUE); |
1835 | break; |
1836 | case 'V': |
1837 | /* XXX Print cursor line */ |
1838 | break; |
1839 | case 'W': |
1840 | /* XXX Start controller mode */ |
1841 | break; |
1842 | case 'X': |
1843 | /* XXX Stop controller mode */ |
1844 | break; |
1845 | case 'Y': |
1846 | termstate = VT52_Y1; |
1847 | break; |
1848 | case 'Z': |
0965bee0 |
1849 | ldisc_send ("\033/Z", 3); |
e14a5a13 |
1850 | break; |
1851 | case '=': |
ec55b220 |
1852 | app_keypad_keys = TRUE; |
e14a5a13 |
1853 | break; |
1854 | case '>': |
ec55b220 |
1855 | app_keypad_keys = FALSE; |
e14a5a13 |
1856 | break; |
1857 | case '<': |
1858 | /* XXX This should switch to VT100 mode not current or default |
1859 | * VT mode. But this will only have effect in a VT220+ |
1860 | * emulation. |
1861 | */ |
1862 | vt52_mode = FALSE; |
1863 | break; |
1864 | case '^': |
1865 | /* XXX Enter auto print mode */ |
1866 | break; |
1867 | case '_': |
1868 | /* XXX Exit auto print mode */ |
1869 | break; |
1870 | case ']': |
1871 | /* XXX Print screen */ |
1872 | break; |
1873 | } |
1874 | break; |
1875 | case VT52_Y1: |
1876 | termstate = VT52_Y2; |
4facdf84 |
1877 | move(curs.x, c-' ', 0); |
e14a5a13 |
1878 | break; |
1879 | case VT52_Y2: |
1880 | termstate = TOPLEVEL; |
4facdf84 |
1881 | move(c-' ', curs.y, 0); |
e14a5a13 |
1882 | break; |
374330e2 |
1883 | } |
4facdf84 |
1884 | if (selstate != NO_SELECTION) { |
1885 | pos cursplus = curs; |
1886 | incpos(cursplus); |
1887 | check_selection (curs, cursplus); |
1888 | } |
374330e2 |
1889 | } |
c9def1b8 |
1890 | inbuf_head = 0; |
374330e2 |
1891 | } |
1892 | |
1893 | /* |
1894 | * Compare two lines to determine whether they are sufficiently |
1895 | * alike to scroll-optimise one to the other. Return the degree of |
1896 | * similarity. |
1897 | */ |
1898 | static int linecmp (unsigned long *a, unsigned long *b) { |
1899 | int i, n; |
1900 | |
1901 | for (i=n=0; i < cols; i++) |
1902 | n += (*a++ == *b++); |
1903 | return n; |
1904 | } |
1905 | |
1906 | /* |
1907 | * Given a context, update the window. Out of paranoia, we don't |
1908 | * allow WM_PAINT responses to do scrolling optimisations. |
1909 | */ |
4facdf84 |
1910 | static void do_paint (Context ctx, int may_optimise) { |
374330e2 |
1911 | int i, j, start, our_curs_y; |
1912 | unsigned long attr, rv, cursor; |
4facdf84 |
1913 | pos scrpos; |
374330e2 |
1914 | char ch[1024]; |
156686ef |
1915 | long ticks; |
374330e2 |
1916 | |
156686ef |
1917 | /* |
1918 | * Check the visual bell state. |
1919 | */ |
1920 | if (in_vbell) { |
1921 | ticks = GetTickCount(); |
1922 | if (ticks - vbell_timeout >= 0) |
1923 | in_vbell = FALSE; |
1924 | } |
1925 | |
1926 | /* Depends on: |
1927 | * screen array, disptop, scrtop, |
1928 | * selection, rv, |
1929 | * cfg.blinkpc, blink_is_real, tblinker, |
4facdf84 |
1930 | * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus |
156686ef |
1931 | */ |
e14a5a13 |
1932 | if (cursor_on) { |
1933 | if (has_focus) { |
217dceef |
1934 | if (blinker || !cfg.blink_cur) |
1935 | cursor = ATTR_ACTCURS; |
1936 | else |
1937 | cursor = 0; |
e14a5a13 |
1938 | } |
1939 | else |
1940 | cursor = ATTR_PASCURS; |
4e30ff69 |
1941 | if (wrapnext) |
1942 | cursor |= ATTR_RIGHTCURS; |
e14a5a13 |
1943 | } |
156686ef |
1944 | else |
1945 | cursor = 0; |
1946 | rv = (!rvideo ^ !in_vbell ? ATTR_REVERSE : 0); |
4facdf84 |
1947 | our_curs_y = curs.y - disptop; |
374330e2 |
1948 | |
1949 | for (i=0; i<rows; i++) { |
4facdf84 |
1950 | unsigned long *ldata; |
1951 | int lattr; |
1952 | scrpos.y = i + disptop; |
1953 | ldata = lineptr(scrpos.y); |
1954 | lattr = (ldata[cols] & LATTR_MODE); |
1955 | for (j=0; j<=cols; j++) { |
1956 | unsigned long d = ldata[j]; |
1957 | int idx = i*(cols+1)+j; |
1958 | scrpos.x = j; |
1959 | |
1960 | wanttext[idx] = lattr | (((d &~ ATTR_WRAPPED) ^ rv |
1961 | ^ (posle(selstart, scrpos) && |
1962 | poslt(scrpos, selend) ? |
1963 | ATTR_REVERSE : 0)) | |
1964 | (i==our_curs_y && j==curs.x ? cursor : 0)); |
c9def1b8 |
1965 | if (blink_is_real) { |
1966 | if (has_focus && tblinker && (wanttext[idx]&ATTR_BLINK) ) |
1967 | { |
1968 | wanttext[idx] &= ATTR_MASK; |
1969 | wanttext[idx] += ' '; |
1970 | } |
1971 | wanttext[idx] &= ~ATTR_BLINK; |
1972 | } |
374330e2 |
1973 | } |
1974 | } |
1975 | |
1976 | /* |
1977 | * We would perform scrolling optimisations in here, if they |
1978 | * didn't have a nasty tendency to cause the whole sodding |
1979 | * program to hang for a second at speed-critical moments. |
1980 | * We'll leave it well alone... |
1981 | */ |
1982 | |
1983 | for (i=0; i<rows; i++) { |
1984 | int idx = i*(cols+1); |
c9def1b8 |
1985 | int lattr = (wanttext[idx+cols] & LATTR_MODE); |
374330e2 |
1986 | start = -1; |
1987 | for (j=0; j<=cols; j++,idx++) { |
1988 | unsigned long t = wanttext[idx]; |
1989 | int needs_update = (j < cols && t != disptext[idx]); |
1990 | int keep_going = (start != -1 && needs_update && |
1991 | (t & ATTR_MASK) == attr && |
1992 | j-start < sizeof(ch)); |
1993 | if (start != -1 && !keep_going) { |
c9def1b8 |
1994 | do_text (ctx, start, i, ch, j-start, attr, lattr); |
374330e2 |
1995 | start = -1; |
1996 | } |
1997 | if (needs_update) { |
1998 | if (start == -1) { |
1999 | start = j; |
2000 | attr = t & ATTR_MASK; |
2001 | } |
2002 | ch[j-start] = (char) (t & CHAR_MASK); |
2003 | } |
2004 | disptext[idx] = t; |
2005 | } |
2006 | } |
2007 | } |
2008 | |
2009 | /* |
e14a5a13 |
2010 | * Flick the switch that says if blinking things should be shown or hidden. |
2011 | */ |
2012 | |
2013 | void term_blink(int flg) { |
22dcdc3b |
2014 | static long last_blink = 0; |
2015 | static long last_tblink = 0; |
e14a5a13 |
2016 | long now, blink_diff; |
2017 | |
c9def1b8 |
2018 | now = GetTickCount(); |
2019 | blink_diff = now-last_tblink; |
2020 | |
2021 | /* Make sure the text blinks no more than 2Hz */ |
2022 | if (blink_diff<0 || blink_diff>450) |
2023 | { |
2024 | last_tblink = now; |
2025 | tblinker = !tblinker; |
2026 | } |
2027 | |
e14a5a13 |
2028 | if (flg) { |
2029 | blinker = 1; |
c9def1b8 |
2030 | last_blink = now; |
e14a5a13 |
2031 | return; |
2032 | } |
e14a5a13 |
2033 | |
2034 | blink_diff = now-last_blink; |
2035 | |
22dcdc3b |
2036 | /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */ |
2037 | if (blink_diff>=0 && blink_diff<(long)GetCaretBlinkTime()) |
e14a5a13 |
2038 | return; |
2039 | |
2040 | last_blink = now; |
2041 | blinker = !blinker; |
2042 | } |
2043 | |
2044 | /* |
374330e2 |
2045 | * Invalidate the whole screen so it will be repainted in full. |
2046 | */ |
2047 | void term_invalidate(void) { |
2048 | int i; |
2049 | |
2050 | for (i=0; i<rows*(cols+1); i++) |
2051 | disptext[i] = ATTR_INVALID; |
2052 | } |
2053 | |
2054 | /* |
2055 | * Paint the window in response to a WM_PAINT message. |
2056 | */ |
2057 | void term_paint (Context ctx, int l, int t, int r, int b) { |
2058 | int i, j, left, top, right, bottom; |
2059 | |
2060 | left = l / font_width; |
2061 | right = (r - 1) / font_width; |
2062 | top = t / font_height; |
2063 | bottom = (b - 1) / font_height; |
e42ad027 |
2064 | for (i = top; i <= bottom && i < rows ; i++) |
c9def1b8 |
2065 | { |
2066 | if ( (disptext[i*(cols+1)+cols]&LATTR_MODE) == LATTR_NORM) |
2067 | for (j = left; j <= right && j < cols ; j++) |
2068 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
2069 | else |
2070 | for (j = left/2; j <= right/2+1 && j < cols ; j++) |
2071 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
2072 | } |
374330e2 |
2073 | |
e14a5a13 |
2074 | /* This should happen soon enough, also for some reason it sometimes |
2075 | * fails to actually do anything when re-sizing ... painting the wrong |
2076 | * window perhaps ? |
374330e2 |
2077 | do_paint (ctx, FALSE); |
e14a5a13 |
2078 | */ |
374330e2 |
2079 | } |
2080 | |
2081 | /* |
2082 | * Attempt to scroll the scrollback. The second parameter gives the |
2083 | * position we want to scroll to; the first is +1 to denote that |
2084 | * this position is relative to the beginning of the scrollback, -1 |
2085 | * to denote it is relative to the end, and 0 to denote that it is |
2086 | * relative to the current position. |
2087 | */ |
2088 | void term_scroll (int rel, int where) { |
4facdf84 |
2089 | int sbtop = -count234(scrollback); |
374330e2 |
2090 | |
4facdf84 |
2091 | disptop = (rel < 0 ? 0 : |
2092 | rel > 0 ? sbtop : disptop) + where; |
374330e2 |
2093 | if (disptop < sbtop) |
2094 | disptop = sbtop; |
4facdf84 |
2095 | if (disptop > 0) |
2096 | disptop = 0; |
374330e2 |
2097 | update_sbar(); |
2098 | term_update(); |
2099 | } |
2100 | |
4facdf84 |
2101 | static void clipme(pos top, pos bottom, char *workbuf) { |
bc1235d4 |
2102 | char *wbptr; /* where next char goes within workbuf */ |
2103 | int wblen = 0; /* workbuf len */ |
2104 | int buflen; /* amount of memory allocated to workbuf */ |
2105 | |
2106 | if ( workbuf != NULL ) { /* user supplied buffer? */ |
2107 | buflen = -1; /* assume buffer passed in is big enough */ |
2108 | wbptr = workbuf; /* start filling here */ |
2109 | } |
2110 | else |
2111 | buflen = 0; /* No data is available yet */ |
2112 | |
4facdf84 |
2113 | while (poslt(top, bottom)) { |
bc1235d4 |
2114 | int nl = FALSE; |
4facdf84 |
2115 | unsigned long *ldata = lineptr(top.y); |
260f3dec |
2116 | pos nlpos; |
4facdf84 |
2117 | |
2118 | nlpos.y = top.y; |
2119 | nlpos.x = cols; |
bc1235d4 |
2120 | |
4facdf84 |
2121 | if (!(ldata[cols] & ATTR_WRAPPED)) { |
2122 | while ((ldata[nlpos.x-1] & CHAR_MASK) == 0x20 && poslt(top, nlpos)) |
2123 | decpos(nlpos); |
2124 | if (poslt(nlpos, bottom)) |
bc1235d4 |
2125 | nl = TRUE; |
2126 | } |
4facdf84 |
2127 | while (poslt(top, bottom) && poslt(top, nlpos)) { |
2128 | int ch = (ldata[top.x] & CHAR_MASK); |
2129 | int set = (ldata[top.x] & CSET_MASK); |
d3a22f79 |
2130 | |
2131 | /* VT Specials -> ISO8859-1 for Cut&Paste */ |
2132 | static const unsigned char poorman2[] = |
bc1235d4 |
2133 | "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 "; |
bc1235d4 |
2134 | |
d3a22f79 |
2135 | if (set && !cfg.rawcnp) { |
2136 | if (set == ATTR_LINEDRW && ch >= 0x60 && ch < 0x7F) { |
2137 | int x; |
2138 | if ((x = poorman2[2*(ch-0x60)+1]) == ' ') |
2139 | x = 0; |
2140 | ch = (x<<8) + poorman2[2*(ch-0x60)]; |
2141 | } |
2142 | } |
bc1235d4 |
2143 | |
d3a22f79 |
2144 | while(ch != 0) { |
2145 | if (cfg.rawcnp || !!(ch&0xE0)) { |
2146 | if ( wblen == buflen ) |
2147 | { |
2148 | workbuf = srealloc(workbuf, buflen += 100); |
2149 | wbptr = workbuf + wblen; |
2150 | } |
2151 | wblen++; |
2152 | *wbptr++ = (unsigned char) ch; |
2153 | } |
2154 | ch>>=8; |
bc1235d4 |
2155 | } |
4facdf84 |
2156 | top.x++; |
bc1235d4 |
2157 | } |
2158 | if (nl) { |
2159 | int i; |
2160 | for (i=0; i<sizeof(sel_nl); i++) |
2161 | { |
2162 | if ( wblen == buflen ) |
2163 | { |
2164 | workbuf = srealloc(workbuf, buflen += 100); |
2165 | wbptr = workbuf + wblen; |
2166 | } |
2167 | wblen++; |
2168 | *wbptr++ = sel_nl[i]; |
2169 | } |
2170 | } |
4facdf84 |
2171 | top.y++; |
2172 | top.x = 0; |
bc1235d4 |
2173 | } |
2174 | write_clip (workbuf, wblen, FALSE); /* transfer to clipboard */ |
2175 | if ( buflen > 0 ) /* indicates we allocated this buffer */ |
2176 | sfree(workbuf); |
2177 | |
2178 | } |
2179 | void term_copyall (void) { |
4facdf84 |
2180 | pos top; |
2181 | top.y = -count234(scrollback); |
2182 | top.x = 0; |
2183 | clipme(top, curs, NULL /* dynamic allocation */); |
bc1235d4 |
2184 | } |
2185 | |
374330e2 |
2186 | /* |
2187 | * Spread the selection outwards according to the selection mode. |
2188 | */ |
4facdf84 |
2189 | static pos sel_spread_half (pos p, int dir) { |
2190 | unsigned long *ldata; |
374330e2 |
2191 | short wvalue; |
2192 | |
4facdf84 |
2193 | ldata = lineptr(p.y); |
374330e2 |
2194 | |
2195 | switch (selmode) { |
2196 | case SM_CHAR: |
2197 | /* |
2198 | * In this mode, every character is a separate unit, except |
2199 | * for runs of spaces at the end of a non-wrapping line. |
2200 | */ |
4facdf84 |
2201 | if (!(ldata[cols] & ATTR_WRAPPED)) { |
2202 | unsigned long *q = ldata+cols; |
2203 | while (q > ldata && (q[-1] & CHAR_MASK) == 0x20) |
374330e2 |
2204 | q--; |
4facdf84 |
2205 | if (q == ldata+cols) |
374330e2 |
2206 | q--; |
4facdf84 |
2207 | if (p.x >= q-ldata) |
2208 | p.x = (dir == -1 ? q-ldata : cols - 1); |
374330e2 |
2209 | } |
2210 | break; |
2211 | case SM_WORD: |
2212 | /* |
2213 | * In this mode, the units are maximal runs of characters |
2214 | * whose `wordness' has the same value. |
2215 | */ |
4facdf84 |
2216 | wvalue = wordness[ldata[p.x] & CHAR_MASK]; |
374330e2 |
2217 | if (dir == +1) { |
4facdf84 |
2218 | while (p.x < cols && wordness[ldata[p.x+1] & CHAR_MASK] == wvalue) |
2219 | p.x++; |
374330e2 |
2220 | } else { |
4facdf84 |
2221 | while (p.x > 0 && wordness[ldata[p.x-1] & CHAR_MASK] == wvalue) |
2222 | p.x--; |
374330e2 |
2223 | } |
2224 | break; |
2225 | case SM_LINE: |
2226 | /* |
2227 | * In this mode, every line is a unit. |
2228 | */ |
4facdf84 |
2229 | p.x = (dir == -1 ? 0 : cols - 1); |
374330e2 |
2230 | break; |
2231 | } |
2232 | return p; |
2233 | } |
2234 | |
2235 | static void sel_spread (void) { |
2236 | selstart = sel_spread_half (selstart, -1); |
4facdf84 |
2237 | decpos(selend); |
2238 | selend = sel_spread_half (selend, +1); |
2239 | incpos(selend); |
374330e2 |
2240 | } |
2241 | |
2242 | void term_mouse (Mouse_Button b, Mouse_Action a, int x, int y) { |
4facdf84 |
2243 | pos selpoint; |
2244 | unsigned long *ldata; |
37508af4 |
2245 | |
2246 | if (y<0) y = 0; |
2247 | if (y>=rows) y = rows-1; |
094ed2a6 |
2248 | if (x<0) { |
2249 | if (y > 0) { |
2250 | x = cols-1; |
2251 | y--; |
2252 | } else |
2253 | x = 0; |
2254 | } |
37508af4 |
2255 | if (x>=cols) x = cols-1; |
2256 | |
4facdf84 |
2257 | selpoint.y = y + disptop; |
2258 | selpoint.x = x; |
2259 | ldata = lineptr(selpoint.y); |
2260 | if ((ldata[cols]&LATTR_MODE) != LATTR_NORM) |
2261 | selpoint.x /= 2; |
374330e2 |
2262 | |
2263 | if (b == MB_SELECT && a == MA_CLICK) { |
2264 | deselect(); |
2265 | selstate = ABOUT_TO; |
2266 | selanchor = selpoint; |
2267 | selmode = SM_CHAR; |
2268 | } else if (b == MB_SELECT && (a == MA_2CLK || a == MA_3CLK)) { |
2269 | deselect(); |
2270 | selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); |
2271 | selstate = DRAGGING; |
2272 | selstart = selanchor = selpoint; |
4facdf84 |
2273 | selend = selstart; |
2274 | incpos(selend); |
374330e2 |
2275 | sel_spread(); |
2276 | } else if ((b == MB_SELECT && a == MA_DRAG) || |
2277 | (b == MB_EXTEND && a != MA_RELEASE)) { |
4facdf84 |
2278 | if (selstate == ABOUT_TO && poseq(selanchor, selpoint)) |
374330e2 |
2279 | return; |
2280 | if (b == MB_EXTEND && a != MA_DRAG && selstate == SELECTED) { |
4facdf84 |
2281 | if (posdiff(selpoint,selstart) < posdiff(selend,selstart)/2) { |
2282 | selanchor = selend; |
2283 | decpos(selanchor); |
2284 | } else { |
374330e2 |
2285 | selanchor = selstart; |
4facdf84 |
2286 | } |
374330e2 |
2287 | selstate = DRAGGING; |
2288 | } |
2289 | if (selstate != ABOUT_TO && selstate != DRAGGING) |
2290 | selanchor = selpoint; |
2291 | selstate = DRAGGING; |
4facdf84 |
2292 | if (poslt(selpoint, selanchor)) { |
374330e2 |
2293 | selstart = selpoint; |
4facdf84 |
2294 | selend = selanchor; |
2295 | incpos(selend); |
374330e2 |
2296 | } else { |
2297 | selstart = selanchor; |
4facdf84 |
2298 | selend = selpoint; |
a4450583 |
2299 | incpos(selend); |
374330e2 |
2300 | } |
2301 | sel_spread(); |
2302 | } else if ((b == MB_SELECT || b == MB_EXTEND) && a == MA_RELEASE) { |
2303 | if (selstate == DRAGGING) { |
2304 | /* |
2305 | * We've completed a selection. We now transfer the |
2306 | * data to the clipboard. |
2307 | */ |
bc1235d4 |
2308 | clipme(selstart, selend, selspace); |
374330e2 |
2309 | selstate = SELECTED; |
2310 | } else |
2311 | selstate = NO_SELECTION; |
2312 | } else if (b == MB_PASTE && (a==MA_CLICK || a==MA_2CLK || a==MA_3CLK)) { |
2313 | char *data; |
2314 | int len; |
2315 | |
2316 | get_clip((void **) &data, &len); |
2317 | if (data) { |
2318 | char *p, *q; |
c9def1b8 |
2319 | |
2320 | if (paste_buffer) sfree(paste_buffer); |
2321 | paste_pos = paste_hold = paste_len = 0; |
2322 | paste_buffer = smalloc(len); |
2323 | |
374330e2 |
2324 | p = q = data; |
2325 | while (p < data+len) { |
2326 | while (p < data+len && |
2327 | !(p <= data+len-sizeof(sel_nl) && |
2328 | !memcmp(p, sel_nl, sizeof(sel_nl)))) |
2329 | p++; |
14963b8f |
2330 | |
2331 | { |
2332 | int i; |
2333 | unsigned char c; |
2334 | for(i=0;i<p-q;i++) |
2335 | { |
2336 | c=xlat_kbd2tty(q[i]); |
c9def1b8 |
2337 | paste_buffer[paste_len++] = c; |
14963b8f |
2338 | } |
2339 | } |
2340 | |
374330e2 |
2341 | if (p <= data+len-sizeof(sel_nl) && |
2342 | !memcmp(p, sel_nl, sizeof(sel_nl))) { |
c9def1b8 |
2343 | paste_buffer[paste_len++] = '\r'; |
374330e2 |
2344 | p += sizeof(sel_nl); |
2345 | } |
2346 | q = p; |
2347 | } |
c9def1b8 |
2348 | |
2349 | /* Assume a small paste will be OK in one go. */ |
2350 | if (paste_len<256) { |
0965bee0 |
2351 | ldisc_send (paste_buffer, paste_len); |
c9def1b8 |
2352 | if (paste_buffer) sfree(paste_buffer); |
2353 | paste_buffer = 0; |
2354 | paste_pos = paste_hold = paste_len = 0; |
2355 | } |
374330e2 |
2356 | } |
2357 | get_clip(NULL, NULL); |
2358 | } |
2359 | |
2360 | term_update(); |
2361 | } |
2362 | |
c9def1b8 |
2363 | void term_nopaste() { |
2364 | if(paste_len == 0) return; |
2365 | sfree(paste_buffer); |
2366 | paste_buffer = 0; |
2367 | paste_len = 0; |
2368 | } |
2369 | |
2370 | void term_paste() { |
8df7a775 |
2371 | static long last_paste = 0; |
c9def1b8 |
2372 | long now, paste_diff; |
2373 | |
2374 | if(paste_len == 0) return; |
2375 | |
2376 | /* Don't wait forever to paste */ |
2377 | if(paste_hold) { |
2378 | now = GetTickCount(); |
2379 | paste_diff = now-last_paste; |
2380 | if (paste_diff>=0 && paste_diff<450) |
2381 | return; |
2382 | } |
2383 | paste_hold = 0; |
2384 | |
2385 | while(paste_pos<paste_len) |
2386 | { |
8df7a775 |
2387 | int n = 0; |
2388 | while (n + paste_pos < paste_len) { |
2389 | if (paste_buffer[paste_pos + n++] == '\r') |
2390 | break; |
2391 | } |
0965bee0 |
2392 | ldisc_send (paste_buffer+paste_pos, n); |
8df7a775 |
2393 | paste_pos += n; |
c9def1b8 |
2394 | |
8df7a775 |
2395 | if (paste_pos < paste_len) { |
c9def1b8 |
2396 | paste_hold = 1; |
2397 | return; |
2398 | } |
2399 | } |
2400 | sfree(paste_buffer); |
2401 | paste_buffer = 0; |
2402 | paste_len = 0; |
2403 | } |
2404 | |
374330e2 |
2405 | static void deselect (void) { |
2406 | selstate = NO_SELECTION; |
4facdf84 |
2407 | selstart.x = selstart.y = selend.x = selend.y = 0; |
374330e2 |
2408 | } |
2409 | |
2410 | void term_deselect (void) { |
2411 | deselect(); |
2412 | term_update(); |
2413 | } |
fe50e814 |
2414 | |
0965bee0 |
2415 | int term_ldisc(int option) { |
2416 | if (option == LD_ECHO) return term_echoing; |
2417 | if (option == LD_EDIT) return term_editing; |
2418 | return FALSE; |
2419 | } |
2420 | |
fe50e814 |
2421 | /* |
2422 | * from_backend(), to get data from the backend for the terminal. |
2423 | */ |
2424 | void from_backend(int is_stderr, char *data, int len) { |
2425 | while (len--) { |
2426 | if (inbuf_head >= INBUF_SIZE) |
2427 | term_out(); |
2428 | inbuf[inbuf_head++] = *data++; |
2429 | } |
2430 | } |
e1c8e0ed |
2431 | |
2432 | /* |
2433 | * Log session traffic. |
2434 | */ |
2435 | void logtraffic(unsigned char c, int logmode) { |
2436 | if (cfg.logtype > 0) { |
2437 | if (cfg.logtype == logmode) { |
2438 | /* deferred open file from pgm start? */ |
2439 | if (!lgfp) logfopen(); |
2440 | if (lgfp) fputc (c, lgfp); |
2441 | } |
2442 | } |
2443 | } |
2444 | |
2445 | /* open log file append/overwrite mode */ |
2446 | void logfopen(void) { |
2447 | char buf[256]; |
2448 | time_t t; |
2449 | struct tm *tm; |
2450 | char writemod[4]; |
2451 | |
2452 | if (!cfg.logtype) |
2453 | return; |
2454 | sprintf (writemod, "wb"); /* default to rewrite */ |
2455 | lgfp = fopen(cfg.logfilename, "r"); /* file already present? */ |
2456 | if (lgfp) { |
2457 | int i; |
2458 | fclose(lgfp); |
2459 | i = askappend(cfg.logfilename); |
2460 | if (i == 1) |
2461 | writemod[0] = 'a'; /* set append mode */ |
2462 | else if (i == 0) { /* cancelled */ |
2463 | lgfp = NULL; |
e4b0ba16 |
2464 | cfg.logtype = 0; /* disable logging */ |
e1c8e0ed |
2465 | return; |
2466 | } |
2467 | } |
2468 | |
2469 | lgfp = fopen(cfg.logfilename, writemod); |
2470 | if (lgfp) { /* enter into event log */ |
2471 | sprintf(buf, "%s session log (%s mode) to file : ", |
2472 | (writemod[0] == 'a') ? "Appending" : "Writing new", |
2473 | (cfg.logtype == LGTYP_ASCII ? "ASCII" : |
2474 | cfg.logtype == LGTYP_DEBUG ? "raw" : "<ukwn>") ); |
2475 | /* Make sure we do not exceed the output buffer size */ |
2476 | strncat (buf, cfg.logfilename, 128); |
2477 | buf[strlen(buf)] = '\0'; |
2478 | logevent(buf); |
2479 | |
2480 | /* --- write header line iinto log file */ |
2481 | fputs ("=~=~=~=~=~=~=~=~=~=~=~= PuTTY log ", lgfp); |
2482 | time(&t); |
2483 | tm = localtime(&t); |
2484 | strftime(buf, 24, "%Y.%m.%d %H:%M:%S", tm); |
2485 | fputs (buf, lgfp); |
2486 | fputs (" =~=~=~=~=~=~=~=~=~=~=~=\r\n", lgfp); |
2487 | } |
2488 | } |
2489 | |
2490 | void logfclose (void) { |
2491 | if (lgfp) { fclose(lgfp); lgfp = NULL; } |
2492 | } |