Annotation of src/usr.bin/tmux/style.c, Revision 1.27
1.27 ! nicm 1: /* $OpenBSD: style.c,v 1.26 2020/05/16 14:53:23 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 },
1.18 nicm 34:
1.22 nicm 35: 8,
1.18 nicm 36: STYLE_ALIGN_DEFAULT,
37: STYLE_LIST_OFF,
38:
1.24 nicm 39: STYLE_RANGE_NONE, 0,
40:
41: STYLE_DEFAULT_BASE
1.15 nicm 42: };
43:
44: /*
1.24 nicm 45: * Parse an embedded style of the form "fg=colour,bg=colour,bright,...". Note
46: * that this adds onto the given style, so it must have been initialized
47: * already.
1.15 nicm 48: */
1.1 nicm 49: int
1.15 nicm 50: style_parse(struct style *sy, const struct grid_cell *base, const char *in)
1.1 nicm 51: {
1.17 nicm 52: struct style saved;
1.18 nicm 53: const char delimiters[] = " ,", *cp;
54: char tmp[256], *found;
1.17 nicm 55: int value;
56: size_t end;
1.1 nicm 57:
58: if (*in == '\0')
59: return (0);
1.16 nicm 60: style_copy(&saved, sy);
1.1 nicm 61:
1.26 nicm 62: log_debug("%s: %s", __func__, in);
1.17 nicm 63: do {
1.20 nicm 64: while (*in != '\0' && strchr(delimiters, *in) != NULL)
1.17 nicm 65: in++;
66: if (*in == '\0')
67: break;
1.15 nicm 68:
1.1 nicm 69: end = strcspn(in, delimiters);
70: if (end > (sizeof tmp) - 1)
1.5 nicm 71: goto error;
1.1 nicm 72: memcpy(tmp, in, end);
73: tmp[end] = '\0';
74:
1.26 nicm 75: log_debug("%s: %s", __func__, tmp);
1.1 nicm 76: if (strcasecmp(tmp, "default") == 0) {
1.17 nicm 77: sy->gc.fg = base->fg;
78: sy->gc.bg = base->bg;
79: sy->gc.attr = base->attr;
80: sy->gc.flags = base->flags;
1.24 nicm 81: } else if (strcasecmp(tmp, "push-default") == 0)
82: sy->default_type = STYLE_DEFAULT_PUSH;
83: else if (strcasecmp(tmp, "pop-default") == 0)
84: sy->default_type = STYLE_DEFAULT_POP;
85: else if (strcasecmp(tmp, "nolist") == 0)
1.18 nicm 86: sy->list = STYLE_LIST_OFF;
87: else if (strncasecmp(tmp, "list=", 5) == 0) {
88: if (strcasecmp(tmp + 5, "on") == 0)
89: sy->list = STYLE_LIST_ON;
90: else if (strcasecmp(tmp + 5, "focus") == 0)
91: sy->list = STYLE_LIST_FOCUS;
92: else if (strcasecmp(tmp + 5, "left-marker") == 0)
93: sy->list = STYLE_LIST_LEFT_MARKER;
94: else if (strcasecmp(tmp + 5, "right-marker") == 0)
95: sy->list = STYLE_LIST_RIGHT_MARKER;
96: else
97: goto error;
98: } else if (strcasecmp(tmp, "norange") == 0) {
99: sy->range_type = style_default.range_type;
100: sy->range_argument = style_default.range_type;
101: } else if (end > 6 && strncasecmp(tmp, "range=", 6) == 0) {
102: found = strchr(tmp + 6, '|');
103: if (found != NULL) {
104: *found++ = '\0';
105: if (*found == '\0')
106: goto error;
107: for (cp = found; *cp != '\0'; cp++) {
108: if (!isdigit((u_char)*cp))
109: goto error;
110: }
111: }
112: if (strcasecmp(tmp + 6, "left") == 0) {
113: if (found != NULL)
114: goto error;
115: sy->range_type = STYLE_RANGE_LEFT;
116: sy->range_argument = 0;
117: } else if (strcasecmp(tmp + 6, "right") == 0) {
118: if (found != NULL)
119: goto error;
120: sy->range_type = STYLE_RANGE_RIGHT;
121: sy->range_argument = 0;
122: } else if (strcasecmp(tmp + 6, "window") == 0) {
123: if (found == NULL)
124: goto error;
125: sy->range_type = STYLE_RANGE_WINDOW;
126: sy->range_argument = atoi(found);
127: }
128: } else if (strcasecmp(tmp, "noalign") == 0)
129: sy->align = style_default.align;
130: else if (end > 6 && strncasecmp(tmp, "align=", 6) == 0) {
131: if (strcasecmp(tmp + 6, "left") == 0)
132: sy->align = STYLE_ALIGN_LEFT;
133: else if (strcasecmp(tmp + 6, "centre") == 0)
134: sy->align = STYLE_ALIGN_CENTRE;
135: else if (strcasecmp(tmp + 6, "right") == 0)
136: sy->align = STYLE_ALIGN_RIGHT;
137: else
138: goto error;
1.22 nicm 139: } else if (end > 5 && strncasecmp(tmp, "fill=", 5) == 0) {
140: if ((value = colour_fromstring(tmp + 5)) == -1)
141: goto error;
142: sy->fill = value;
1.1 nicm 143: } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
1.15 nicm 144: if ((value = colour_fromstring(tmp + 3)) == -1)
1.5 nicm 145: goto error;
1.1 nicm 146: if (*in == 'f' || *in == 'F') {
1.15 nicm 147: if (value != 8)
1.17 nicm 148: sy->gc.fg = value;
1.10 nicm 149: else
1.17 nicm 150: sy->gc.fg = base->fg;
1.1 nicm 151: } else if (*in == 'b' || *in == 'B') {
1.15 nicm 152: if (value != 8)
1.17 nicm 153: sy->gc.bg = value;
1.10 nicm 154: else
1.17 nicm 155: sy->gc.bg = base->bg;
1.1 nicm 156: } else
1.5 nicm 157: goto error;
1.1 nicm 158: } else if (strcasecmp(tmp, "none") == 0)
1.17 nicm 159: sy->gc.attr = 0;
1.1 nicm 160: else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
1.15 nicm 161: if ((value = attributes_fromstring(tmp + 2)) == -1)
1.5 nicm 162: goto error;
1.17 nicm 163: sy->gc.attr &= ~value;
1.1 nicm 164: } else {
1.15 nicm 165: if ((value = attributes_fromstring(tmp)) == -1)
1.5 nicm 166: goto error;
1.17 nicm 167: sy->gc.attr |= value;
1.1 nicm 168: }
169:
170: in += end + strspn(in + end, delimiters);
171: } while (*in != '\0');
1.15 nicm 172:
1.1 nicm 173: return (0);
1.5 nicm 174:
175: error:
1.16 nicm 176: style_copy(sy, &saved);
1.5 nicm 177: return (-1);
1.1 nicm 178: }
179:
180: /* Convert style to a string. */
181: const char *
1.15 nicm 182: style_tostring(struct style *sy)
1.1 nicm 183: {
1.15 nicm 184: struct grid_cell *gc = &sy->gc;
185: int off = 0;
1.19 nicm 186: const char *comma = "", *tmp = "";
1.15 nicm 187: static char s[256];
1.18 nicm 188: char b[16];
1.1 nicm 189:
190: *s = '\0';
191:
1.18 nicm 192: if (sy->list != STYLE_LIST_OFF) {
193: if (sy->list == STYLE_LIST_ON)
194: tmp = "on";
195: else if (sy->list == STYLE_LIST_FOCUS)
196: tmp = "focus";
197: else if (sy->list == STYLE_LIST_LEFT_MARKER)
198: tmp = "left-marker";
199: else if (sy->list == STYLE_LIST_RIGHT_MARKER)
200: tmp = "right-marker";
201: off += xsnprintf(s + off, sizeof s - off, "%slist=%s", comma,
202: tmp);
203: comma = ",";
204: }
205: if (sy->range_type != STYLE_RANGE_NONE) {
206: if (sy->range_type == STYLE_RANGE_LEFT)
207: tmp = "left";
208: else if (sy->range_type == STYLE_RANGE_RIGHT)
209: tmp = "right";
210: else if (sy->range_type == STYLE_RANGE_WINDOW) {
211: snprintf(b, sizeof b, "window|%u", sy->range_argument);
212: tmp = b;
213: }
214: off += xsnprintf(s + off, sizeof s - off, "%srange=%s", comma,
215: tmp);
216: comma = ",";
217: }
218: if (sy->align != STYLE_ALIGN_DEFAULT) {
219: if (sy->align == STYLE_ALIGN_LEFT)
220: tmp = "left";
221: else if (sy->align == STYLE_ALIGN_CENTRE)
222: tmp = "centre";
223: else if (sy->align == STYLE_ALIGN_RIGHT)
224: tmp = "right";
225: off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma,
226: tmp);
227: comma = ",";
228: }
1.24 nicm 229: if (sy->default_type != STYLE_DEFAULT_BASE) {
230: if (sy->default_type == STYLE_DEFAULT_PUSH)
231: tmp = "push-default";
232: else if (sy->default_type == STYLE_DEFAULT_POP)
233: tmp = "pop-default";
234: off += xsnprintf(s + off, sizeof s - off, "%s%s", comma, tmp);
235: comma = ",";
236: }
1.22 nicm 237: if (sy->fill != 8) {
238: off += xsnprintf(s + off, sizeof s - off, "%sfill=%s", comma,
239: colour_tostring(sy->fill));
240: comma = ",";
241: }
1.10 nicm 242: if (gc->fg != 8) {
1.17 nicm 243: off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma,
244: colour_tostring(gc->fg));
1.15 nicm 245: comma = ",";
1.1 nicm 246: }
1.10 nicm 247: if (gc->bg != 8) {
1.17 nicm 248: off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma,
249: colour_tostring(gc->bg));
1.15 nicm 250: comma = ",";
1.1 nicm 251: }
1.25 nicm 252: if (gc->attr != 0) {
1.17 nicm 253: xsnprintf(s + off, sizeof s - off, "%s%s", comma,
254: attributes_tostring(gc->attr));
1.15 nicm 255: comma = ",";
1.1 nicm 256: }
257:
258: if (*s == '\0')
259: return ("default");
260: return (s);
261: }
262:
1.27 ! nicm 263: /* Apply a style on top of the given style. */
1.1 nicm 264: void
1.27 ! nicm 265: style_add(struct grid_cell *gc, struct options *oo, const char *name,
! 266: struct format_tree *ft)
1.1 nicm 267: {
1.27 ! nicm 268: struct style *sy;
! 269: struct format_tree *ft0 = NULL;
1.1 nicm 270:
1.27 ! nicm 271: if (ft == NULL)
! 272: ft = ft0 = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
! 273:
! 274: sy = options_string_to_style(oo, name, ft);
! 275: if (sy == NULL)
! 276: sy = &style_default;
! 277: if (sy->gc.fg != 8)
! 278: gc->fg = sy->gc.fg;
! 279: if (sy->gc.bg != 8)
! 280: gc->bg = sy->gc.bg;
! 281: gc->attr |= sy->gc.attr;
! 282:
! 283: if (ft0 != NULL)
! 284: format_free(ft0);
! 285: }
! 286:
! 287: /* Apply a style on top of the default style. */
! 288: void
! 289: style_apply(struct grid_cell *gc, struct options *oo, const char *name,
! 290: struct format_tree *ft)
! 291: {
1.1 nicm 292: memcpy(gc, &grid_default_cell, sizeof *gc);
1.27 ! nicm 293: style_add(gc, oo, name, ft);
1.15 nicm 294: }
295:
296: /* Initialize style from cell. */
297: void
298: style_set(struct style *sy, const struct grid_cell *gc)
299: {
1.17 nicm 300: memcpy(sy, &style_default, sizeof *sy);
1.15 nicm 301: memcpy(&sy->gc, gc, sizeof sy->gc);
302: }
1.1 nicm 303:
1.15 nicm 304: /* Copy style. */
305: void
306: style_copy(struct style *dst, struct style *src)
307: {
308: memcpy(dst, src, sizeof *dst);
1.1 nicm 309: }
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