Coverage Report

Created: 2025-04-11 06:41

/src/tmux/style.c
Line
Count
Source (jump to first uncovered line)
1
/* $OpenBSD$ */
2
3
/*
4
 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5
 * Copyright (c) 2014 Tiago Cunha <tcunha@users.sourceforge.net>
6
 *
7
 * Permission to use, copy, modify, and distribute this software for any
8
 * purpose with or without fee is hereby granted, provided that the above
9
 * copyright notice and this permission notice appear in all copies.
10
 *
11
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18
 */
19
20
#include <sys/types.h>
21
22
#include <ctype.h>
23
#include <stdlib.h>
24
#include <string.h>
25
26
#include "tmux.h"
27
28
/* Mask for bits not included in style. */
29
#define STYLE_ATTR_MASK (~0)
30
31
/* Default style. */
32
static struct style style_default = {
33
  { { { ' ' }, 0, 1, 1 }, 0, 0, 8, 8, 0, 0 },
34
  0,
35
36
  8,
37
  STYLE_ALIGN_DEFAULT,
38
  STYLE_LIST_OFF,
39
40
  STYLE_RANGE_NONE, 0, "",
41
42
  STYLE_WIDTH_DEFAULT, STYLE_PAD_DEFAULT,
43
44
  STYLE_DEFAULT_BASE
45
};
46
47
/* Set range string. */
48
static void
49
style_set_range_string(struct style *sy, const char *s)
50
0
{
51
0
  strlcpy(sy->range_string, s, sizeof sy->range_string);
52
0
}
53
54
/*
55
 * Parse an embedded style of the form "fg=colour,bg=colour,bright,...".  Note
56
 * that this adds onto the given style, so it must have been initialized
57
 * already.
58
 */
59
int
60
style_parse(struct style *sy, const struct grid_cell *base, const char *in)
61
3
{
62
3
  struct style  saved;
63
3
  const char  delimiters[] = " ,\n", *errstr;
64
3
  char    tmp[256], *found;
65
3
  int   value;
66
3
  size_t    end;
67
3
  u_int   n;
68
69
3
  if (*in == '\0')
70
0
    return (0);
71
3
  style_copy(&saved, sy);
72
73
3
  log_debug("%s: %s", __func__, in);
74
6
  do {
75
6
    while (*in != '\0' && strchr(delimiters, *in) != NULL)
76
0
      in++;
77
6
    if (*in == '\0')
78
0
      break;
79
80
6
    end = strcspn(in, delimiters);
81
6
    if (end > (sizeof tmp) - 1)
82
0
      goto error;
83
6
    memcpy(tmp, in, end);
84
6
    tmp[end] = '\0';
85
86
6
    log_debug("%s: %s", __func__, tmp);
87
6
    if (strcasecmp(tmp, "default") == 0) {
88
2
      sy->gc.fg = base->fg;
89
2
      sy->gc.bg = base->bg;
90
2
      sy->gc.us = base->us;
91
2
      sy->gc.attr = base->attr;
92
2
      sy->gc.flags = base->flags;
93
4
    } else if (strcasecmp(tmp, "ignore") == 0)
94
0
      sy->ignore = 1;
95
4
    else if (strcasecmp(tmp, "noignore") == 0)
96
0
      sy->ignore = 0;
97
4
    else if (strcasecmp(tmp, "push-default") == 0)
98
0
      sy->default_type = STYLE_DEFAULT_PUSH;
99
4
    else if (strcasecmp(tmp, "pop-default") == 0)
100
0
      sy->default_type = STYLE_DEFAULT_POP;
101
4
    else if (strcasecmp(tmp, "nolist") == 0)
102
0
      sy->list = STYLE_LIST_OFF;
103
4
    else if (strncasecmp(tmp, "list=", 5) == 0) {
104
0
      if (strcasecmp(tmp + 5, "on") == 0)
105
0
        sy->list = STYLE_LIST_ON;
106
0
      else if (strcasecmp(tmp + 5, "focus") == 0)
107
0
        sy->list = STYLE_LIST_FOCUS;
108
0
      else if (strcasecmp(tmp + 5, "left-marker") == 0)
109
0
        sy->list = STYLE_LIST_LEFT_MARKER;
110
0
      else if (strcasecmp(tmp + 5, "right-marker") == 0)
111
0
        sy->list = STYLE_LIST_RIGHT_MARKER;
112
0
      else
113
0
        goto error;
114
4
    } else if (strcasecmp(tmp, "norange") == 0) {
115
0
      sy->range_type = style_default.range_type;
116
0
      sy->range_argument = style_default.range_type;
117
0
      strlcpy(sy->range_string, style_default.range_string,
118
0
          sizeof sy->range_string);
119
4
    } else if (end > 6 && strncasecmp(tmp, "range=", 6) == 0) {
120
0
      found = strchr(tmp + 6, '|');
121
0
      if (found != NULL) {
122
0
        *found++ = '\0';
123
0
        if (*found == '\0')
124
0
          goto error;
125
0
      }
126
0
      if (strcasecmp(tmp + 6, "left") == 0) {
127
0
        if (found != NULL)
128
0
          goto error;
129
0
        sy->range_type = STYLE_RANGE_LEFT;
130
0
        sy->range_argument = 0;
131
0
        style_set_range_string(sy, "");
132
0
      } else if (strcasecmp(tmp + 6, "right") == 0) {
133
0
        if (found != NULL)
134
0
          goto error;
135
0
        sy->range_type = STYLE_RANGE_RIGHT;
136
0
        sy->range_argument = 0;
137
0
        style_set_range_string(sy, "");
138
0
      } else if (strcasecmp(tmp + 6, "pane") == 0) {
139
0
        if (found == NULL)
140
0
          goto error;
141
0
        if (*found != '%' || found[1] == '\0')
142
0
          goto error;
143
0
        n = strtonum(found + 1, 0, UINT_MAX, &errstr);
144
0
        if (errstr != NULL)
145
0
          goto error;
146
0
        sy->range_type = STYLE_RANGE_PANE;
147
0
        sy->range_argument = n;
148
0
        style_set_range_string(sy, "");
149
0
      } else if (strcasecmp(tmp + 6, "window") == 0) {
150
0
        if (found == NULL)
151
0
          goto error;
152
0
        n = strtonum(found, 0, UINT_MAX, &errstr);
153
0
        if (errstr != NULL)
154
0
          goto error;
155
0
        sy->range_type = STYLE_RANGE_WINDOW;
156
0
        sy->range_argument = n;
157
0
        style_set_range_string(sy, "");
158
0
      } else if (strcasecmp(tmp + 6, "session") == 0) {
159
0
        if (found == NULL)
160
0
          goto error;
161
0
        if (*found != '$' || found[1] == '\0')
162
0
          goto error;
163
0
        n = strtonum(found + 1, 0, UINT_MAX, &errstr);
164
0
        if (errstr != NULL)
165
0
          goto error;
166
0
        sy->range_type = STYLE_RANGE_SESSION;
167
0
        sy->range_argument = n;
168
0
        style_set_range_string(sy, "");
169
0
      } else if (strcasecmp(tmp + 6, "user") == 0) {
170
0
        if (found == NULL)
171
0
          goto error;
172
0
        sy->range_type = STYLE_RANGE_USER;
173
0
        sy->range_argument = 0;
174
0
        style_set_range_string(sy, found);
175
0
      }
176
4
    } else if (strcasecmp(tmp, "noalign") == 0)
177
0
      sy->align = style_default.align;
178
4
    else if (end > 6 && strncasecmp(tmp, "align=", 6) == 0) {
179
0
      if (strcasecmp(tmp + 6, "left") == 0)
180
0
        sy->align = STYLE_ALIGN_LEFT;
181
0
      else if (strcasecmp(tmp + 6, "centre") == 0)
182
0
        sy->align = STYLE_ALIGN_CENTRE;
183
0
      else if (strcasecmp(tmp + 6, "right") == 0)
184
0
        sy->align = STYLE_ALIGN_RIGHT;
185
0
      else if (strcasecmp(tmp + 6, "absolute-centre") == 0)
186
0
        sy->align = STYLE_ALIGN_ABSOLUTE_CENTRE;
187
0
      else
188
0
        goto error;
189
4
    } else if (end > 5 && strncasecmp(tmp, "fill=", 5) == 0) {
190
0
      if ((value = colour_fromstring(tmp + 5)) == -1)
191
0
        goto error;
192
0
      sy->fill = value;
193
4
    } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
194
2
      if ((value = colour_fromstring(tmp + 3)) == -1)
195
0
        goto error;
196
2
      if (*in == 'f' || *in == 'F') {
197
1
        if (value != 8)
198
1
          sy->gc.fg = value;
199
0
        else
200
0
          sy->gc.fg = base->fg;
201
1
      } else if (*in == 'b' || *in == 'B') {
202
1
        if (value != 8)
203
1
          sy->gc.bg = value;
204
0
        else
205
0
          sy->gc.bg = base->bg;
206
1
      } else
207
0
        goto error;
208
2
    } else if (end > 3 && strncasecmp(tmp, "us=", 3) == 0) {
209
0
      if ((value = colour_fromstring(tmp + 3)) == -1)
210
0
        goto error;
211
0
      if (value != 8)
212
0
        sy->gc.us = value;
213
0
      else
214
0
        sy->gc.us = base->us;
215
2
    } else if (strcasecmp(tmp, "none") == 0)
216
0
      sy->gc.attr = 0;
217
2
    else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
218
0
      if ((value = attributes_fromstring(tmp + 2)) == -1)
219
0
        goto error;
220
0
      sy->gc.attr &= ~value;
221
2
    } else if (end > 6 && strncasecmp(tmp, "width=", 6) == 0) {
222
1
                        n = strtonum(tmp + 6, 0, UINT_MAX, &errstr);
223
1
                        if (errstr != NULL)
224
0
                                goto error;
225
1
                        sy->width = (int)n;
226
1
    } else if (end > 4 && strncasecmp(tmp, "pad=", 4) == 0) {
227
1
                        n = strtonum(tmp + 4, 0, UINT_MAX, &errstr);
228
1
                        if (errstr != NULL)
229
0
                                goto error;
230
1
                        sy->pad = (int)n;
231
1
    } else {
232
0
      if ((value = attributes_fromstring(tmp)) == -1)
233
0
        goto error;
234
0
      sy->gc.attr |= value;
235
0
    }
236
237
6
    in += end + strspn(in + end, delimiters);
238
6
  } while (*in != '\0');
239
240
3
  return (0);
241
242
0
error:
243
0
  style_copy(sy, &saved);
244
0
  return (-1);
245
3
}
246
247
/* Convert style to a string. */
248
const char *
249
style_tostring(struct style *sy)
250
0
{
251
0
  struct grid_cell  *gc = &sy->gc;
252
0
  int      off = 0;
253
0
  const char    *comma = "", *tmp = "";
254
0
  static char    s[256];
255
0
  char       b[21];
256
257
0
  *s = '\0';
258
259
0
  if (sy->list != STYLE_LIST_OFF) {
260
0
    if (sy->list == STYLE_LIST_ON)
261
0
      tmp = "on";
262
0
    else if (sy->list == STYLE_LIST_FOCUS)
263
0
      tmp = "focus";
264
0
    else if (sy->list == STYLE_LIST_LEFT_MARKER)
265
0
      tmp = "left-marker";
266
0
    else if (sy->list == STYLE_LIST_RIGHT_MARKER)
267
0
      tmp = "right-marker";
268
0
    off += xsnprintf(s + off, sizeof s - off, "%slist=%s", comma,
269
0
        tmp);
270
0
    comma = ",";
271
0
  }
272
0
  if (sy->range_type != STYLE_RANGE_NONE) {
273
0
    if (sy->range_type == STYLE_RANGE_LEFT)
274
0
      tmp = "left";
275
0
    else if (sy->range_type == STYLE_RANGE_RIGHT)
276
0
      tmp = "right";
277
0
    else if (sy->range_type == STYLE_RANGE_PANE) {
278
0
      snprintf(b, sizeof b, "pane|%%%u", sy->range_argument);
279
0
      tmp = b;
280
0
    } else if (sy->range_type == STYLE_RANGE_WINDOW) {
281
0
      snprintf(b, sizeof b, "window|%u", sy->range_argument);
282
0
      tmp = b;
283
0
    } else if (sy->range_type == STYLE_RANGE_SESSION) {
284
0
      snprintf(b, sizeof b, "session|$%u",
285
0
          sy->range_argument);
286
0
      tmp = b;
287
0
    } else if (sy->range_type == STYLE_RANGE_USER) {
288
0
      snprintf(b, sizeof b, "user|%s", sy->range_string);
289
0
      tmp = b;
290
0
    }
291
0
    off += xsnprintf(s + off, sizeof s - off, "%srange=%s", comma,
292
0
        tmp);
293
0
    comma = ",";
294
0
  }
295
0
  if (sy->align != STYLE_ALIGN_DEFAULT) {
296
0
    if (sy->align == STYLE_ALIGN_LEFT)
297
0
      tmp = "left";
298
0
    else if (sy->align == STYLE_ALIGN_CENTRE)
299
0
      tmp = "centre";
300
0
    else if (sy->align == STYLE_ALIGN_RIGHT)
301
0
      tmp = "right";
302
0
    else if (sy->align == STYLE_ALIGN_ABSOLUTE_CENTRE)
303
0
      tmp = "absolute-centre";
304
0
    off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma,
305
0
        tmp);
306
0
    comma = ",";
307
0
  }
308
0
  if (sy->default_type != STYLE_DEFAULT_BASE) {
309
0
    if (sy->default_type == STYLE_DEFAULT_PUSH)
310
0
      tmp = "push-default";
311
0
    else if (sy->default_type == STYLE_DEFAULT_POP)
312
0
      tmp = "pop-default";
313
0
    off += xsnprintf(s + off, sizeof s - off, "%s%s", comma, tmp);
314
0
    comma = ",";
315
0
  }
316
0
  if (sy->fill != 8) {
317
0
    off += xsnprintf(s + off, sizeof s - off, "%sfill=%s", comma,
318
0
        colour_tostring(sy->fill));
319
0
    comma = ",";
320
0
  }
321
0
  if (gc->fg != 8) {
322
0
    off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma,
323
0
        colour_tostring(gc->fg));
324
0
    comma = ",";
325
0
  }
326
0
  if (gc->bg != 8) {
327
0
    off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma,
328
0
        colour_tostring(gc->bg));
329
0
    comma = ",";
330
0
  }
331
0
  if (gc->us != 8) {
332
0
    off += xsnprintf(s + off, sizeof s - off, "%sus=%s", comma,
333
0
        colour_tostring(gc->us));
334
0
    comma = ",";
335
0
  }
336
0
  if (gc->attr != 0) {
337
0
    xsnprintf(s + off, sizeof s - off, "%s%s", comma,
338
0
        attributes_tostring(gc->attr));
339
0
    comma = ",";
340
0
  }
341
0
        if (sy->width >= 0) {
342
0
                xsnprintf(s + off, sizeof s - off, "%swidth=%u", comma,
343
0
        sy->width);
344
0
    comma = ",";
345
0
  }
346
0
        if (sy->pad >= 0) {
347
0
                xsnprintf(s + off, sizeof s - off, "%spad=%u", comma,
348
0
        sy->pad);
349
0
    comma = ",";
350
0
  }
351
0
  if (*s == '\0')
352
0
    return ("default");
353
0
  return (s);
354
0
}
355
356
/* Apply a style on top of the given style. */
357
void
358
style_add(struct grid_cell *gc, struct options *oo, const char *name,
359
    struct format_tree *ft)
360
7.58k
{
361
7.58k
  struct style    *sy;
362
7.58k
  struct format_tree  *ft0 = NULL;
363
364
7.58k
  if (ft == NULL)
365
0
    ft = ft0 = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
366
367
7.58k
  sy = options_string_to_style(oo, name, ft);
368
7.58k
  if (sy == NULL)
369
0
    sy = &style_default;
370
7.58k
  if (sy->gc.fg != 8)
371
0
    gc->fg = sy->gc.fg;
372
7.58k
  if (sy->gc.bg != 8)
373
0
    gc->bg = sy->gc.bg;
374
7.58k
  if (sy->gc.us != 8)
375
0
    gc->us = sy->gc.us;
376
7.58k
  gc->attr |= sy->gc.attr;
377
378
7.58k
  if (ft0 != NULL)
379
0
    format_free(ft0);
380
7.58k
}
381
382
/* Apply a style on top of the default style. */
383
void
384
style_apply(struct grid_cell *gc, struct options *oo, const char *name,
385
    struct format_tree *ft)
386
0
{
387
0
  memcpy(gc, &grid_default_cell, sizeof *gc);
388
0
  style_add(gc, oo, name, ft);
389
0
}
390
391
/* Initialize style from cell. */
392
void
393
style_set(struct style *sy, const struct grid_cell *gc)
394
3
{
395
3
  memcpy(sy, &style_default, sizeof *sy);
396
3
  memcpy(&sy->gc, gc, sizeof sy->gc);
397
3
}
398
399
/* Copy style. */
400
void
401
style_copy(struct style *dst, struct style *src)
402
12.1k
{
403
12.1k
  memcpy(dst, src, sizeof *dst);
404
12.1k
}
405
406
void
407
style_set_scrollbar_style_from_option(struct style *sb_style, struct options *oo)
408
12.1k
{
409
12.1k
  struct style  *sy;
410
411
12.1k
  sy = options_string_to_style(oo, "pane-scrollbars-style", NULL);
412
12.1k
  if (sy == NULL) {
413
0
    style_set(sb_style, &grid_default_cell);
414
0
    sb_style->width = PANE_SCROLLBARS_DEFAULT_WIDTH;
415
0
    sb_style->pad = PANE_SCROLLBARS_DEFAULT_PADDING;
416
0
    utf8_set(&sb_style->gc.data, PANE_SCROLLBARS_CHARACTER);
417
12.1k
  } else {
418
12.1k
    style_copy(sb_style, sy);
419
12.1k
    if (sb_style->width < 1)
420
0
      sb_style->width = PANE_SCROLLBARS_DEFAULT_WIDTH;
421
12.1k
    if (sb_style->pad < 0)
422
0
      sb_style->pad = PANE_SCROLLBARS_DEFAULT_PADDING;
423
12.1k
    utf8_set(&sb_style->gc.data, PANE_SCROLLBARS_CHARACTER);
424
12.1k
  }
425
12.1k
}