Annotation of src/usr.bin/tmux/style.c, Revision 1.28
1.28 ! nicm 1: /* $OpenBSD: style.c,v 1.27 2020/05/16 15:01:31 nicm Exp $ */
1.1 nicm 2:
3: /*
1.9 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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: */
1.4 nicm 19:
20: #include <sys/types.h>
1.1 nicm 21:
1.18 nicm 22: #include <ctype.h>
23: #include <stdlib.h>
1.1 nicm 24: #include <string.h>
25:
26: #include "tmux.h"
27:
1.15 nicm 28: /* Mask for bits not included in style. */
1.25 nicm 29: #define STYLE_ATTR_MASK (~0)
1.15 nicm 30:
31: /* Default style. */
32: static struct style style_default = {
1.23 nicm 33: { { { ' ' }, 0, 1, 1 }, 0, 0, 8, 8, 0 },
1.28 ! nicm 34: 0,
1.18 nicm 35:
1.22 nicm 36: 8,
1.18 nicm 37: STYLE_ALIGN_DEFAULT,
38: STYLE_LIST_OFF,
39:
1.24 nicm 40: STYLE_RANGE_NONE, 0,
41:
42: STYLE_DEFAULT_BASE
1.15 nicm 43: };
44:
45: /*
1.24 nicm 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.
1.15 nicm 49: */
1.1 nicm 50: int
1.15 nicm 51: style_parse(struct style *sy, const struct grid_cell *base, const char *in)
1.1 nicm 52: {
1.17 nicm 53: struct style saved;
1.18 nicm 54: const char delimiters[] = " ,", *cp;
55: char tmp[256], *found;
1.17 nicm 56: int value;
57: size_t end;
1.1 nicm 58:
59: if (*in == '\0')
60: return (0);
1.16 nicm 61: style_copy(&saved, sy);
1.1 nicm 62:
1.26 nicm 63: log_debug("%s: %s", __func__, in);
1.17 nicm 64: do {
1.20 nicm 65: while (*in != '\0' && strchr(delimiters, *in) != NULL)
1.17 nicm 66: in++;
67: if (*in == '\0')
68: break;
1.15 nicm 69:
1.1 nicm 70: end = strcspn(in, delimiters);
71: if (end > (sizeof tmp) - 1)
1.5 nicm 72: goto error;
1.1 nicm 73: memcpy(tmp, in, end);
74: tmp[end] = '\0';
75:
1.26 nicm 76: log_debug("%s: %s", __func__, tmp);
1.1 nicm 77: if (strcasecmp(tmp, "default") == 0) {
1.17 nicm 78: sy->gc.fg = base->fg;
79: sy->gc.bg = base->bg;
80: sy->gc.attr = base->attr;
81: sy->gc.flags = base->flags;
1.28 ! nicm 82: } else if (strcasecmp(tmp, "ignore") == 0)
! 83: sy->ignore = 1;
! 84: else if (strcasecmp(tmp, "noignore") == 0)
! 85: sy->ignore = 0;
! 86: else if (strcasecmp(tmp, "push-default") == 0)
1.24 nicm 87: sy->default_type = STYLE_DEFAULT_PUSH;
88: else if (strcasecmp(tmp, "pop-default") == 0)
89: sy->default_type = STYLE_DEFAULT_POP;
90: else if (strcasecmp(tmp, "nolist") == 0)
1.18 nicm 91: sy->list = STYLE_LIST_OFF;
92: else if (strncasecmp(tmp, "list=", 5) == 0) {
93: if (strcasecmp(tmp + 5, "on") == 0)
94: sy->list = STYLE_LIST_ON;
95: else if (strcasecmp(tmp + 5, "focus") == 0)
96: sy->list = STYLE_LIST_FOCUS;
97: else if (strcasecmp(tmp + 5, "left-marker") == 0)
98: sy->list = STYLE_LIST_LEFT_MARKER;
99: else if (strcasecmp(tmp + 5, "right-marker") == 0)
100: sy->list = STYLE_LIST_RIGHT_MARKER;
101: else
102: goto error;
103: } else if (strcasecmp(tmp, "norange") == 0) {
104: sy->range_type = style_default.range_type;
105: sy->range_argument = style_default.range_type;
106: } else if (end > 6 && strncasecmp(tmp, "range=", 6) == 0) {
107: found = strchr(tmp + 6, '|');
108: if (found != NULL) {
109: *found++ = '\0';
110: if (*found == '\0')
111: goto error;
112: for (cp = found; *cp != '\0'; cp++) {
113: if (!isdigit((u_char)*cp))
114: goto error;
115: }
116: }
117: if (strcasecmp(tmp + 6, "left") == 0) {
118: if (found != NULL)
119: goto error;
120: sy->range_type = STYLE_RANGE_LEFT;
121: sy->range_argument = 0;
122: } else if (strcasecmp(tmp + 6, "right") == 0) {
123: if (found != NULL)
124: goto error;
125: sy->range_type = STYLE_RANGE_RIGHT;
126: sy->range_argument = 0;
127: } else if (strcasecmp(tmp + 6, "window") == 0) {
128: if (found == NULL)
129: goto error;
130: sy->range_type = STYLE_RANGE_WINDOW;
131: sy->range_argument = atoi(found);
132: }
133: } else if (strcasecmp(tmp, "noalign") == 0)
134: sy->align = style_default.align;
135: else if (end > 6 && strncasecmp(tmp, "align=", 6) == 0) {
136: if (strcasecmp(tmp + 6, "left") == 0)
137: sy->align = STYLE_ALIGN_LEFT;
138: else if (strcasecmp(tmp + 6, "centre") == 0)
139: sy->align = STYLE_ALIGN_CENTRE;
140: else if (strcasecmp(tmp + 6, "right") == 0)
141: sy->align = STYLE_ALIGN_RIGHT;
142: else
143: goto error;
1.22 nicm 144: } else if (end > 5 && strncasecmp(tmp, "fill=", 5) == 0) {
145: if ((value = colour_fromstring(tmp + 5)) == -1)
146: goto error;
147: sy->fill = value;
1.1 nicm 148: } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
1.15 nicm 149: if ((value = colour_fromstring(tmp + 3)) == -1)
1.5 nicm 150: goto error;
1.1 nicm 151: if (*in == 'f' || *in == 'F') {
1.15 nicm 152: if (value != 8)
1.17 nicm 153: sy->gc.fg = value;
1.10 nicm 154: else
1.17 nicm 155: sy->gc.fg = base->fg;
1.1 nicm 156: } else if (*in == 'b' || *in == 'B') {
1.15 nicm 157: if (value != 8)
1.17 nicm 158: sy->gc.bg = value;
1.10 nicm 159: else
1.17 nicm 160: sy->gc.bg = base->bg;
1.1 nicm 161: } else
1.5 nicm 162: goto error;
1.1 nicm 163: } else if (strcasecmp(tmp, "none") == 0)
1.17 nicm 164: sy->gc.attr = 0;
1.1 nicm 165: else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
1.15 nicm 166: if ((value = attributes_fromstring(tmp + 2)) == -1)
1.5 nicm 167: goto error;
1.17 nicm 168: sy->gc.attr &= ~value;
1.1 nicm 169: } else {
1.15 nicm 170: if ((value = attributes_fromstring(tmp)) == -1)
1.5 nicm 171: goto error;
1.17 nicm 172: sy->gc.attr |= value;
1.1 nicm 173: }
174:
175: in += end + strspn(in + end, delimiters);
176: } while (*in != '\0');
1.15 nicm 177:
1.1 nicm 178: return (0);
1.5 nicm 179:
180: error:
1.16 nicm 181: style_copy(sy, &saved);
1.5 nicm 182: return (-1);
1.1 nicm 183: }
184:
185: /* Convert style to a string. */
186: const char *
1.15 nicm 187: style_tostring(struct style *sy)
1.1 nicm 188: {
1.15 nicm 189: struct grid_cell *gc = &sy->gc;
190: int off = 0;
1.19 nicm 191: const char *comma = "", *tmp = "";
1.15 nicm 192: static char s[256];
1.18 nicm 193: char b[16];
1.1 nicm 194:
195: *s = '\0';
196:
1.18 nicm 197: if (sy->list != STYLE_LIST_OFF) {
198: if (sy->list == STYLE_LIST_ON)
199: tmp = "on";
200: else if (sy->list == STYLE_LIST_FOCUS)
201: tmp = "focus";
202: else if (sy->list == STYLE_LIST_LEFT_MARKER)
203: tmp = "left-marker";
204: else if (sy->list == STYLE_LIST_RIGHT_MARKER)
205: tmp = "right-marker";
206: off += xsnprintf(s + off, sizeof s - off, "%slist=%s", comma,
207: tmp);
208: comma = ",";
209: }
210: if (sy->range_type != STYLE_RANGE_NONE) {
211: if (sy->range_type == STYLE_RANGE_LEFT)
212: tmp = "left";
213: else if (sy->range_type == STYLE_RANGE_RIGHT)
214: tmp = "right";
215: else if (sy->range_type == STYLE_RANGE_WINDOW) {
216: snprintf(b, sizeof b, "window|%u", sy->range_argument);
217: tmp = b;
218: }
219: off += xsnprintf(s + off, sizeof s - off, "%srange=%s", comma,
220: tmp);
221: comma = ",";
222: }
223: if (sy->align != STYLE_ALIGN_DEFAULT) {
224: if (sy->align == STYLE_ALIGN_LEFT)
225: tmp = "left";
226: else if (sy->align == STYLE_ALIGN_CENTRE)
227: tmp = "centre";
228: else if (sy->align == STYLE_ALIGN_RIGHT)
229: tmp = "right";
230: off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma,
231: tmp);
232: comma = ",";
233: }
1.24 nicm 234: if (sy->default_type != STYLE_DEFAULT_BASE) {
235: if (sy->default_type == STYLE_DEFAULT_PUSH)
236: tmp = "push-default";
237: else if (sy->default_type == STYLE_DEFAULT_POP)
238: tmp = "pop-default";
239: off += xsnprintf(s + off, sizeof s - off, "%s%s", comma, tmp);
240: comma = ",";
241: }
1.22 nicm 242: if (sy->fill != 8) {
243: off += xsnprintf(s + off, sizeof s - off, "%sfill=%s", comma,
244: colour_tostring(sy->fill));
245: comma = ",";
246: }
1.10 nicm 247: if (gc->fg != 8) {
1.17 nicm 248: off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma,
249: colour_tostring(gc->fg));
1.15 nicm 250: comma = ",";
1.1 nicm 251: }
1.10 nicm 252: if (gc->bg != 8) {
1.17 nicm 253: off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma,
254: colour_tostring(gc->bg));
1.15 nicm 255: comma = ",";
1.1 nicm 256: }
1.25 nicm 257: if (gc->attr != 0) {
1.17 nicm 258: xsnprintf(s + off, sizeof s - off, "%s%s", comma,
259: attributes_tostring(gc->attr));
1.15 nicm 260: comma = ",";
1.1 nicm 261: }
262:
263: if (*s == '\0')
264: return ("default");
265: return (s);
266: }
267:
1.27 nicm 268: /* Apply a style on top of the given style. */
1.1 nicm 269: void
1.27 nicm 270: style_add(struct grid_cell *gc, struct options *oo, const char *name,
271: struct format_tree *ft)
1.1 nicm 272: {
1.27 nicm 273: struct style *sy;
274: struct format_tree *ft0 = NULL;
1.1 nicm 275:
1.27 nicm 276: if (ft == NULL)
277: ft = ft0 = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
278:
279: sy = options_string_to_style(oo, name, ft);
280: if (sy == NULL)
281: sy = &style_default;
282: if (sy->gc.fg != 8)
283: gc->fg = sy->gc.fg;
284: if (sy->gc.bg != 8)
285: gc->bg = sy->gc.bg;
286: gc->attr |= sy->gc.attr;
287:
288: if (ft0 != NULL)
289: format_free(ft0);
290: }
291:
292: /* Apply a style on top of the default style. */
293: void
294: style_apply(struct grid_cell *gc, struct options *oo, const char *name,
295: struct format_tree *ft)
296: {
1.1 nicm 297: memcpy(gc, &grid_default_cell, sizeof *gc);
1.27 nicm 298: style_add(gc, oo, name, ft);
1.15 nicm 299: }
300:
301: /* Initialize style from cell. */
302: void
303: style_set(struct style *sy, const struct grid_cell *gc)
304: {
1.17 nicm 305: memcpy(sy, &style_default, sizeof *sy);
1.15 nicm 306: memcpy(&sy->gc, gc, sizeof sy->gc);
307: }
1.1 nicm 308:
1.15 nicm 309: /* Copy style. */
310: void
311: style_copy(struct style *dst, struct style *src)
312: {
313: memcpy(dst, src, sizeof *dst);
1.1 nicm 314: }
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