Coverage Report

Created: 2023-06-07 06:04

/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_DEFAULT_BASE
43
};
44
45
/*
46
 * Parse an embedded style of the form "fg=colour,bg=colour,bright,...".  Note
47
 * that this adds onto the given style, so it must have been initialized
48
 * already.
49
 */
50
int
51
style_parse(struct style *sy, const struct grid_cell *base, const char *in)
52
2
{
53
2
  struct style  saved;
54
2
  const char  delimiters[] = " ,\n", *cp;
55
2
  char    tmp[256], *found;
56
2
  int   value;
57
2
  size_t    end;
58
59
2
  if (*in == '\0')
60
0
    return (0);
61
2
  style_copy(&saved, sy);
62
63
2
  log_debug("%s: %s", __func__, in);
64
2
  do {
65
2
    while (*in != '\0' && strchr(delimiters, *in) != NULL)
66
0
      in++;
67
2
    if (*in == '\0')
68
0
      break;
69
70
2
    end = strcspn(in, delimiters);
71
2
    if (end > (sizeof tmp) - 1)
72
0
      goto error;
73
2
    memcpy(tmp, in, end);
74
2
    tmp[end] = '\0';
75
76
2
    log_debug("%s: %s", __func__, tmp);
77
2
    if (strcasecmp(tmp, "default") == 0) {
78
2
      sy->gc.fg = base->fg;
79
2
      sy->gc.bg = base->bg;
80
2
      sy->gc.attr = base->attr;
81
2
      sy->gc.flags = base->flags;
82
2
    } else if (strcasecmp(tmp, "ignore") == 0)
83
0
      sy->ignore = 1;
84
0
    else if (strcasecmp(tmp, "noignore") == 0)
85
0
      sy->ignore = 0;
86
0
    else if (strcasecmp(tmp, "push-default") == 0)
87
0
      sy->default_type = STYLE_DEFAULT_PUSH;
88
0
    else if (strcasecmp(tmp, "pop-default") == 0)
89
0
      sy->default_type = STYLE_DEFAULT_POP;
90
0
    else if (strcasecmp(tmp, "nolist") == 0)
91
0
      sy->list = STYLE_LIST_OFF;
92
0
    else if (strncasecmp(tmp, "list=", 5) == 0) {
93
0
      if (strcasecmp(tmp + 5, "on") == 0)
94
0
        sy->list = STYLE_LIST_ON;
95
0
      else if (strcasecmp(tmp + 5, "focus") == 0)
96
0
        sy->list = STYLE_LIST_FOCUS;
97
0
      else if (strcasecmp(tmp + 5, "left-marker") == 0)
98
0
        sy->list = STYLE_LIST_LEFT_MARKER;
99
0
      else if (strcasecmp(tmp + 5, "right-marker") == 0)
100
0
        sy->list = STYLE_LIST_RIGHT_MARKER;
101
0
      else
102
0
        goto error;
103
0
    } else if (strcasecmp(tmp, "norange") == 0) {
104
0
      sy->range_type = style_default.range_type;
105
0
      sy->range_argument = style_default.range_type;
106
0
    } else if (end > 6 && strncasecmp(tmp, "range=", 6) == 0) {
107
0
      found = strchr(tmp + 6, '|');
108
0
      if (found != NULL) {
109
0
        *found++ = '\0';
110
0
        if (*found == '\0')
111
0
          goto error;
112
0
        for (cp = found; *cp != '\0'; cp++) {
113
0
          if (!isdigit((u_char)*cp))
114
0
            goto error;
115
0
        }
116
0
      }
117
0
      if (strcasecmp(tmp + 6, "left") == 0) {
118
0
        if (found != NULL)
119
0
          goto error;
120
0
        sy->range_type = STYLE_RANGE_LEFT;
121
0
        sy->range_argument = 0;
122
0
      } else if (strcasecmp(tmp + 6, "right") == 0) {
123
0
        if (found != NULL)
124
0
          goto error;
125
0
        sy->range_type = STYLE_RANGE_RIGHT;
126
0
        sy->range_argument = 0;
127
0
      } else if (strcasecmp(tmp + 6, "window") == 0) {
128
0
        if (found == NULL)
129
0
          goto error;
130
0
        sy->range_type = STYLE_RANGE_WINDOW;
131
0
        sy->range_argument = atoi(found);
132
0
      }
133
0
    } else if (strcasecmp(tmp, "noalign") == 0)
134
0
      sy->align = style_default.align;
135
0
    else if (end > 6 && strncasecmp(tmp, "align=", 6) == 0) {
136
0
      if (strcasecmp(tmp + 6, "left") == 0)
137
0
        sy->align = STYLE_ALIGN_LEFT;
138
0
      else if (strcasecmp(tmp + 6, "centre") == 0)
139
0
        sy->align = STYLE_ALIGN_CENTRE;
140
0
      else if (strcasecmp(tmp + 6, "right") == 0)
141
0
        sy->align = STYLE_ALIGN_RIGHT;
142
0
      else if (strcasecmp(tmp + 6, "absolute-centre") == 0)
143
0
        sy->align = STYLE_ALIGN_ABSOLUTE_CENTRE;
144
0
      else
145
0
        goto error;
146
0
    } else if (end > 5 && strncasecmp(tmp, "fill=", 5) == 0) {
147
0
      if ((value = colour_fromstring(tmp + 5)) == -1)
148
0
        goto error;
149
0
      sy->fill = value;
150
0
    } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
151
0
      if ((value = colour_fromstring(tmp + 3)) == -1)
152
0
        goto error;
153
0
      if (*in == 'f' || *in == 'F') {
154
0
        if (value != 8)
155
0
          sy->gc.fg = value;
156
0
        else
157
0
          sy->gc.fg = base->fg;
158
0
      } else if (*in == 'b' || *in == 'B') {
159
0
        if (value != 8)
160
0
          sy->gc.bg = value;
161
0
        else
162
0
          sy->gc.bg = base->bg;
163
0
      } else
164
0
        goto error;
165
0
    } else if (strcasecmp(tmp, "none") == 0)
166
0
      sy->gc.attr = 0;
167
0
    else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
168
0
      if ((value = attributes_fromstring(tmp + 2)) == -1)
169
0
        goto error;
170
0
      sy->gc.attr &= ~value;
171
0
    } else {
172
0
      if ((value = attributes_fromstring(tmp)) == -1)
173
0
        goto error;
174
0
      sy->gc.attr |= value;
175
0
    }
176
177
2
    in += end + strspn(in + end, delimiters);
178
2
  } while (*in != '\0');
179
180
2
  return (0);
181
182
0
error:
183
0
  style_copy(sy, &saved);
184
0
  return (-1);
185
2
}
186
187
/* Convert style to a string. */
188
const char *
189
style_tostring(struct style *sy)
190
0
{
191
0
  struct grid_cell  *gc = &sy->gc;
192
0
  int      off = 0;
193
0
  const char    *comma = "", *tmp = "";
194
0
  static char    s[256];
195
0
  char       b[16];
196
197
0
  *s = '\0';
198
199
0
  if (sy->list != STYLE_LIST_OFF) {
200
0
    if (sy->list == STYLE_LIST_ON)
201
0
      tmp = "on";
202
0
    else if (sy->list == STYLE_LIST_FOCUS)
203
0
      tmp = "focus";
204
0
    else if (sy->list == STYLE_LIST_LEFT_MARKER)
205
0
      tmp = "left-marker";
206
0
    else if (sy->list == STYLE_LIST_RIGHT_MARKER)
207
0
      tmp = "right-marker";
208
0
    off += xsnprintf(s + off, sizeof s - off, "%slist=%s", comma,
209
0
        tmp);
210
0
    comma = ",";
211
0
  }
212
0
  if (sy->range_type != STYLE_RANGE_NONE) {
213
0
    if (sy->range_type == STYLE_RANGE_LEFT)
214
0
      tmp = "left";
215
0
    else if (sy->range_type == STYLE_RANGE_RIGHT)
216
0
      tmp = "right";
217
0
    else if (sy->range_type == STYLE_RANGE_WINDOW) {
218
0
      snprintf(b, sizeof b, "window|%u", sy->range_argument);
219
0
      tmp = b;
220
0
    }
221
0
    off += xsnprintf(s + off, sizeof s - off, "%srange=%s", comma,
222
0
        tmp);
223
0
    comma = ",";
224
0
  }
225
0
  if (sy->align != STYLE_ALIGN_DEFAULT) {
226
0
    if (sy->align == STYLE_ALIGN_LEFT)
227
0
      tmp = "left";
228
0
    else if (sy->align == STYLE_ALIGN_CENTRE)
229
0
      tmp = "centre";
230
0
    else if (sy->align == STYLE_ALIGN_RIGHT)
231
0
      tmp = "right";
232
0
    else if (sy->align == STYLE_ALIGN_ABSOLUTE_CENTRE)
233
0
      tmp = "absolute-centre";
234
0
    off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma,
235
0
        tmp);
236
0
    comma = ",";
237
0
  }
238
0
  if (sy->default_type != STYLE_DEFAULT_BASE) {
239
0
    if (sy->default_type == STYLE_DEFAULT_PUSH)
240
0
      tmp = "push-default";
241
0
    else if (sy->default_type == STYLE_DEFAULT_POP)
242
0
      tmp = "pop-default";
243
0
    off += xsnprintf(s + off, sizeof s - off, "%s%s", comma, tmp);
244
0
    comma = ",";
245
0
  }
246
0
  if (sy->fill != 8) {
247
0
    off += xsnprintf(s + off, sizeof s - off, "%sfill=%s", comma,
248
0
        colour_tostring(sy->fill));
249
0
    comma = ",";
250
0
  }
251
0
  if (gc->fg != 8) {
252
0
    off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma,
253
0
        colour_tostring(gc->fg));
254
0
    comma = ",";
255
0
  }
256
0
  if (gc->bg != 8) {
257
0
    off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma,
258
0
        colour_tostring(gc->bg));
259
0
    comma = ",";
260
0
  }
261
0
  if (gc->attr != 0) {
262
0
    xsnprintf(s + off, sizeof s - off, "%s%s", comma,
263
0
        attributes_tostring(gc->attr));
264
0
    comma = ",";
265
0
  }
266
267
0
  if (*s == '\0')
268
0
    return ("default");
269
0
  return (s);
270
0
}
271
272
/* Apply a style on top of the given style. */
273
void
274
style_add(struct grid_cell *gc, struct options *oo, const char *name,
275
    struct format_tree *ft)
276
6.56k
{
277
6.56k
  struct style    *sy;
278
6.56k
  struct format_tree  *ft0 = NULL;
279
280
6.56k
  if (ft == NULL)
281
0
    ft = ft0 = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
282
283
6.56k
  sy = options_string_to_style(oo, name, ft);
284
6.56k
  if (sy == NULL)
285
0
    sy = &style_default;
286
6.56k
  if (sy->gc.fg != 8)
287
0
    gc->fg = sy->gc.fg;
288
6.56k
  if (sy->gc.bg != 8)
289
0
    gc->bg = sy->gc.bg;
290
6.56k
  gc->attr |= sy->gc.attr;
291
292
6.56k
  if (ft0 != NULL)
293
0
    format_free(ft0);
294
6.56k
}
295
296
/* Apply a style on top of the default style. */
297
void
298
style_apply(struct grid_cell *gc, struct options *oo, const char *name,
299
    struct format_tree *ft)
300
0
{
301
0
  memcpy(gc, &grid_default_cell, sizeof *gc);
302
0
  style_add(gc, oo, name, ft);
303
0
}
304
305
/* Initialize style from cell. */
306
void
307
style_set(struct style *sy, const struct grid_cell *gc)
308
2
{
309
2
  memcpy(sy, &style_default, sizeof *sy);
310
2
  memcpy(&sy->gc, gc, sizeof sy->gc);
311
2
}
312
313
/* Copy style. */
314
void
315
style_copy(struct style *dst, struct style *src)
316
2
{
317
2
  memcpy(dst, src, sizeof *dst);
318
2
}