attributes.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2009 Joshua Elsasser <josh@elsasser.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <string.h>
  22
  23 #include "tmux.h"
  24
  25 const char *
  26 attributes_tostring(u_char attr)
  27 {
  28         static char     buf[128];
  29         size_t          len;
  30
  31         if (attr == 0)
  32                 return ("none");
  33
  34         len = xsnprintf(buf, sizeof buf, "%s%s%s%s%s%s%s",
  35                 attr & GRID_ATTR_BRIGHT ? "bright," : "",
  36                 attr & GRID_ATTR_DIM ? "dim," : "",
  37                 attr & GRID_ATTR_UNDERSCORE ? "underscore," : "",
  38                 attr & GRID_ATTR_BLINK ? "blink," : "",
  39                 attr & GRID_ATTR_REVERSE ? "reverse," : "",
  40                 attr & GRID_ATTR_HIDDEN ? "hidden," : "",
  41                 attr & GRID_ATTR_ITALICS ? "italics," : "");
  42         if (len > 0)
  43                 buf[len - 1] = '\0';
  44
  45         return (buf);
  46 }
  47
  48 int
  49 attributes_fromstring(const char *str)
  50 {
  51         const char      delimiters[] = " ,|";
  52         u_char          attr;
  53         size_t          end;
  54
  55         if (*str == '\0' || strcspn(str, delimiters) == 0)
  56                 return (-1);
  57         if (strchr(delimiters, str[strlen(str) - 1]) != NULL)
  58                 return (-1);
  59
  60         if (strcasecmp(str, "default") == 0 || strcasecmp(str, "none") == 0)
  61                 return (0);
  62
  63         attr = 0;
  64         do {
  65                 end = strcspn(str, delimiters);
  66                 if ((end == 6 && strncasecmp(str, "bright", end) == 0) ||
  67                     (end == 4 && strncasecmp(str, "bold", end) == 0))
  68                         attr |= GRID_ATTR_BRIGHT;
  69                 else if (end == 3 && strncasecmp(str, "dim", end) == 0)
  70                         attr |= GRID_ATTR_DIM;
  71                 else if (end == 10 && strncasecmp(str, "underscore", end) == 0)
  72                         attr |= GRID_ATTR_UNDERSCORE;
  73                 else if (end == 5 && strncasecmp(str, "blink", end) == 0)
  74                         attr |= GRID_ATTR_BLINK;
  75                 else if (end == 7 && strncasecmp(str, "reverse", end) == 0)
  76                         attr |= GRID_ATTR_REVERSE;
  77                 else if (end == 6 && strncasecmp(str, "hidden", end) == 0)
  78                         attr |= GRID_ATTR_HIDDEN;
  79                 else if (end == 7 && strncasecmp(str, "italics", end) == 0)
  80                         attr |= GRID_ATTR_ITALICS;
  81                 else
  82                         return (-1);
  83                 str += end + strspn(str + end, delimiters);
  84         } while (*str != '\0');
  85
  86         return (attr);
  87 }