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
  30         if (attr == 0)
  31                 return ("none");
  32
  33         buf[0] = '\0';
  34         if (attr & GRID_ATTR_BRIGHT)
  35                 strlcat(buf, "bright,", sizeof (buf));
  36         if (attr & GRID_ATTR_DIM)
  37                 strlcat(buf, "dim,", sizeof (buf));
  38         if (attr & GRID_ATTR_UNDERSCORE)
  39                 strlcat(buf, "underscore,", sizeof (buf));
  40         if (attr & GRID_ATTR_BLINK)
  41                 strlcat(buf, "blink,", sizeof (buf));
  42         if (attr & GRID_ATTR_REVERSE)
  43                 strlcat(buf, "reverse,", sizeof (buf));
  44         if (attr & GRID_ATTR_HIDDEN)
  45                 strlcat(buf, "hidden,", sizeof (buf));
  46         if (attr & GRID_ATTR_ITALICS)
  47                 strlcat(buf, "italics,", sizeof (buf));
  48         if (*buf != '\0')
  49                 *(strrchr(buf, ',')) = '\0';
  50
  51         return (buf);
  52 }
  53
  54 int
  55 attributes_fromstring(const char *str)
  56 {
  57         const char      delimiters[] = " ,|";
  58         u_char          attr;
  59         size_t          end;
  60
  61         if (*str == '\0' || strcspn(str, delimiters) == 0)
  62                 return (-1);
  63         if (strchr(delimiters, str[strlen(str) - 1]) != NULL)
  64                 return (-1);
  65
  66         if (strcasecmp(str, "default") == 0 || strcasecmp(str, "none") == 0)
  67                 return (0);
  68
  69         attr = 0;
  70         do {
  71                 end = strcspn(str, delimiters);
  72                 if ((end == 6 && strncasecmp(str, "bright", end) == 0) ||
  73                     (end == 4 && strncasecmp(str, "bold", end) == 0))
  74                         attr |= GRID_ATTR_BRIGHT;
  75                 else if (end == 3 && strncasecmp(str, "dim", end) == 0)
  76                         attr |= GRID_ATTR_DIM;
  77                 else if (end == 10 && strncasecmp(str, "underscore", end) == 0)
  78                         attr |= GRID_ATTR_UNDERSCORE;
  79                 else if (end == 5 && strncasecmp(str, "blink", end) == 0)
  80                         attr |= GRID_ATTR_BLINK;
  81                 else if (end == 7 && strncasecmp(str, "reverse", end) == 0)
  82                         attr |= GRID_ATTR_REVERSE;
  83                 else if (end == 6 && strncasecmp(str, "hidden", end) == 0)
  84                         attr |= GRID_ATTR_HIDDEN;
  85                 else if (end == 7 && strncasecmp(str, "italics", end) == 0)
  86                         attr |= GRID_ATTR_ITALICS;
  87                 else
  88                         return (-1);
  89                 str += end + strspn(str + end, delimiters);
  90         } while (*str != '\0');
  91
  92         return (attr);
  93 }