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 /* Set range string. */ 46 static void 47 style_set_range_string(struct style *sy, const char *s) 48 { 49 strlcpy(sy->range_string, s, sizeof sy->range_string); 50 } 51 52 /* 53 * Parse an embedded style of the form "fg=colour,bg=colour,bright,...". Note 54 * that this adds onto the given style, so it must have been initialized 55 * already. 56 */ 57 int 58 style_parse(struct style *sy, const struct grid_cell *base, const char *in) 59 { 60 struct style saved; 61 const char delimiters[] = " ,\n", *errstr; 62 char tmp[256], *found; 63 int value; 64 size_t end; 65 u_int n; 66 67 if (*in == '\0') 68 return (0); 69 style_copy(&saved, sy); 70 71 log_debug("%s: %s", __func__, in); 72 do { 73 while (*in != '\0' && strchr(delimiters, *in) != NULL) 74 in++; 75 if (*in == '\0') 76 break; 77 78 end = strcspn(in, delimiters); 79 if (end > (sizeof tmp) - 1) 80 goto error; 81 memcpy(tmp, in, end); 82 tmp[end] = '\0'; 83 84 log_debug("%s: %s", __func__, tmp); 85 if (strcasecmp(tmp, "default") == 0) { 86 sy->gc.fg = base->fg; 87 sy->gc.bg = base->bg; 88 sy->gc.us = base->us; 89 sy->gc.attr = base->attr; 90 sy->gc.flags = base->flags; 91 } else if (strcasecmp(tmp, "ignore") == 0) 92 sy->ignore = 1; 93 else if (strcasecmp(tmp, "noignore") == 0) 94 sy->ignore = 0; 95 else if (strcasecmp(tmp, "push-default") == 0) 96 sy->default_type = STYLE_DEFAULT_PUSH; 97 else if (strcasecmp(tmp, "pop-default") == 0) 98 sy->default_type = STYLE_DEFAULT_POP; 99 else if (strcasecmp(tmp, "nolist") == 0) 100 sy->list = STYLE_LIST_OFF; 101 else if (strncasecmp(tmp, "list=", 5) == 0) { 102 if (strcasecmp(tmp + 5, "on") == 0) 103 sy->list = STYLE_LIST_ON; 104 else if (strcasecmp(tmp + 5, "focus") == 0) 105 sy->list = STYLE_LIST_FOCUS; 106 else if (strcasecmp(tmp + 5, "left-marker") == 0) 107 sy->list = STYLE_LIST_LEFT_MARKER; 108 else if (strcasecmp(tmp + 5, "right-marker") == 0) 109 sy->list = STYLE_LIST_RIGHT_MARKER; 110 else 111 goto error; 112 } else if (strcasecmp(tmp, "norange") == 0) { 113 sy->range_type = style_default.range_type; 114 sy->range_argument = style_default.range_type; 115 strlcpy(sy->range_string, style_default.range_string, 116 sizeof sy->range_string); 117 } else if (end > 6 && strncasecmp(tmp, "range=", 6) == 0) { 118 found = strchr(tmp + 6, '|'); 119 if (found != NULL) { 120 *found++ = '\0'; 121 if (*found == '\0') 122 goto error; 123 } 124 if (strcasecmp(tmp + 6, "left") == 0) { 125 if (found != NULL) 126 goto error; 127 sy->range_type = STYLE_RANGE_LEFT; 128 sy->range_argument = 0; 129 style_set_range_string(sy, ""); 130 } else if (strcasecmp(tmp + 6, "right") == 0) { 131 if (found != NULL) 132 goto error; 133 sy->range_type = STYLE_RANGE_RIGHT; 134 sy->range_argument = 0; 135 style_set_range_string(sy, ""); 136 } else if (strcasecmp(tmp + 6, "pane") == 0) { 137 if (found == NULL) 138 goto error; 139 if (*found != '%' || found[1] == '\0') 140 goto error; 141 n = strtonum(found + 1, 0, UINT_MAX, &errstr); 142 if (errstr != NULL) 143 goto error; 144 sy->range_type = STYLE_RANGE_PANE; 145 sy->range_argument = n; 146 style_set_range_string(sy, ""); 147 } else if (strcasecmp(tmp + 6, "window") == 0) { 148 if (found == NULL) 149 goto error; 150 n = strtonum(found, 0, UINT_MAX, &errstr); 151 if (errstr != NULL) 152 goto error; 153 sy->range_type = STYLE_RANGE_WINDOW; 154 sy->range_argument = n; 155 style_set_range_string(sy, ""); 156 } else if (strcasecmp(tmp + 6, "session") == 0) { 157 if (found == NULL) 158 goto error; 159 if (*found != '$' || found[1] == '\0') 160 goto error; 161 n = strtonum(found + 1, 0, UINT_MAX, &errstr); 162 if (errstr != NULL) 163 goto error; 164 sy->range_type = STYLE_RANGE_SESSION; 165 sy->range_argument = n; 166 style_set_range_string(sy, ""); 167 } else if (strcasecmp(tmp + 6, "user") == 0) { 168 if (found == NULL) 169 goto error; 170 sy->range_type = STYLE_RANGE_USER; 171 sy->range_argument = 0; 172 style_set_range_string(sy, found); 173 } 174 } else if (strcasecmp(tmp, "noalign") == 0) 175 sy->align = style_default.align; 176 else if (end > 6 && strncasecmp(tmp, "align=", 6) == 0) { 177 if (strcasecmp(tmp + 6, "left") == 0) 178 sy->align = STYLE_ALIGN_LEFT; 179 else if (strcasecmp(tmp + 6, "centre") == 0) 180 sy->align = STYLE_ALIGN_CENTRE; 181 else if (strcasecmp(tmp + 6, "right") == 0) 182 sy->align = STYLE_ALIGN_RIGHT; 183 else if (strcasecmp(tmp + 6, "absolute-centre") == 0) 184 sy->align = STYLE_ALIGN_ABSOLUTE_CENTRE; 185 else 186 goto error; 187 } else if (end > 5 && strncasecmp(tmp, "fill=", 5) == 0) { 188 if ((value = colour_fromstring(tmp + 5)) == -1) 189 goto error; 190 sy->fill = value; 191 } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) { 192 if ((value = colour_fromstring(tmp + 3)) == -1) 193 goto error; 194 if (*in == 'f' || *in == 'F') { 195 if (value != 8) 196 sy->gc.fg = value; 197 else 198 sy->gc.fg = base->fg; 199 } else if (*in == 'b' || *in == 'B') { 200 if (value != 8) 201 sy->gc.bg = value; 202 else 203 sy->gc.bg = base->bg; 204 } else 205 goto error; 206 } else if (end > 3 && strncasecmp(tmp, "us=", 3) == 0) { 207 if ((value = colour_fromstring(tmp + 3)) == -1) 208 goto error; 209 if (value != 8) 210 sy->gc.us = value; 211 else 212 sy->gc.us = base->us; 213 } else if (strcasecmp(tmp, "none") == 0) 214 sy->gc.attr = 0; 215 else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) { 216 if ((value = attributes_fromstring(tmp + 2)) == -1) 217 goto error; 218 sy->gc.attr &= ~value; 219 } else { 220 if ((value = attributes_fromstring(tmp)) == -1) 221 goto error; 222 sy->gc.attr |= value; 223 } 224 225 in += end + strspn(in + end, delimiters); 226 } while (*in != '\0'); 227 228 return (0); 229 230 error: 231 style_copy(sy, &saved); 232 return (-1); 233 } 234 235 /* Convert style to a string. */ 236 const char * 237 style_tostring(struct style *sy) 238 { 239 struct grid_cell *gc = &sy->gc; 240 int off = 0; 241 const char *comma = "", *tmp = ""; 242 static char s[256]; 243 char b[21]; 244 245 *s = '\0'; 246 247 if (sy->list != STYLE_LIST_OFF) { 248 if (sy->list == STYLE_LIST_ON) 249 tmp = "on"; 250 else if (sy->list == STYLE_LIST_FOCUS) 251 tmp = "focus"; 252 else if (sy->list == STYLE_LIST_LEFT_MARKER) 253 tmp = "left-marker"; 254 else if (sy->list == STYLE_LIST_RIGHT_MARKER) 255 tmp = "right-marker"; 256 off += xsnprintf(s + off, sizeof s - off, "%slist=%s", comma, 257 tmp); 258 comma = ","; 259 } 260 if (sy->range_type != STYLE_RANGE_NONE) { 261 if (sy->range_type == STYLE_RANGE_LEFT) 262 tmp = "left"; 263 else if (sy->range_type == STYLE_RANGE_RIGHT) 264 tmp = "right"; 265 else if (sy->range_type == STYLE_RANGE_PANE) { 266 snprintf(b, sizeof b, "pane|%%%u", sy->range_argument); 267 tmp = b; 268 } else if (sy->range_type == STYLE_RANGE_WINDOW) { 269 snprintf(b, sizeof b, "window|%u", sy->range_argument); 270 tmp = b; 271 } else if (sy->range_type == STYLE_RANGE_SESSION) { 272 snprintf(b, sizeof b, "session|$%u", 273 sy->range_argument); 274 tmp = b; 275 } else if (sy->range_type == STYLE_RANGE_USER) { 276 snprintf(b, sizeof b, "user|%s", sy->range_string); 277 tmp = b; 278 } 279 off += xsnprintf(s + off, sizeof s - off, "%srange=%s", comma, 280 tmp); 281 comma = ","; 282 } 283 if (sy->align != STYLE_ALIGN_DEFAULT) { 284 if (sy->align == STYLE_ALIGN_LEFT) 285 tmp = "left"; 286 else if (sy->align == STYLE_ALIGN_CENTRE) 287 tmp = "centre"; 288 else if (sy->align == STYLE_ALIGN_RIGHT) 289 tmp = "right"; 290 else if (sy->align == STYLE_ALIGN_ABSOLUTE_CENTRE) 291 tmp = "absolute-centre"; 292 off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma, 293 tmp); 294 comma = ","; 295 } 296 if (sy->default_type != STYLE_DEFAULT_BASE) { 297 if (sy->default_type == STYLE_DEFAULT_PUSH) 298 tmp = "push-default"; 299 else if (sy->default_type == STYLE_DEFAULT_POP) 300 tmp = "pop-default"; 301 off += xsnprintf(s + off, sizeof s - off, "%s%s", comma, tmp); 302 comma = ","; 303 } 304 if (sy->fill != 8) { 305 off += xsnprintf(s + off, sizeof s - off, "%sfill=%s", comma, 306 colour_tostring(sy->fill)); 307 comma = ","; 308 } 309 if (gc->fg != 8) { 310 off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma, 311 colour_tostring(gc->fg)); 312 comma = ","; 313 } 314 if (gc->bg != 8) { 315 off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma, 316 colour_tostring(gc->bg)); 317 comma = ","; 318 } 319 if (gc->us != 8) { 320 off += xsnprintf(s + off, sizeof s - off, "%sus=%s", comma, 321 colour_tostring(gc->us)); 322 comma = ","; 323 } 324 if (gc->attr != 0) { 325 xsnprintf(s + off, sizeof s - off, "%s%s", comma, 326 attributes_tostring(gc->attr)); 327 comma = ","; 328 } 329 330 if (*s == '\0') 331 return ("default"); 332 return (s); 333 } 334 335 /* Apply a style on top of the given style. */ 336 void 337 style_add(struct grid_cell *gc, struct options *oo, const char *name, 338 struct format_tree *ft) 339 { 340 struct style *sy; 341 struct format_tree *ft0 = NULL; 342 343 if (ft == NULL) 344 ft = ft0 = format_create(NULL, NULL, 0, FORMAT_NOJOBS); 345 346 sy = options_string_to_style(oo, name, ft); 347 if (sy == NULL) 348 sy = &style_default; 349 if (sy->gc.fg != 8) 350 gc->fg = sy->gc.fg; 351 if (sy->gc.bg != 8) 352 gc->bg = sy->gc.bg; 353 if (sy->gc.us != 8) 354 gc->us = sy->gc.us; 355 gc->attr |= sy->gc.attr; 356 357 if (ft0 != NULL) 358 format_free(ft0); 359 } 360 361 /* Apply a style on top of the default style. */ 362 void 363 style_apply(struct grid_cell *gc, struct options *oo, const char *name, 364 struct format_tree *ft) 365 { 366 memcpy(gc, &grid_default_cell, sizeof *gc); 367 style_add(gc, oo, name, ft); 368 } 369 370 /* Initialize style from cell. */ 371 void 372 style_set(struct style *sy, const struct grid_cell *gc) 373 { 374 memcpy(sy, &style_default, sizeof *sy); 375 memcpy(&sy->gc, gc, sizeof sy->gc); 376 } 377 378 /* Copy style. */ 379 void 380 style_copy(struct style *dst, struct style *src) 381 { 382 memcpy(dst, src, sizeof *dst); 383 } 384