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(int attr)
  27 {
  28         static char     buf[512];
  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%s%s%s%s%s%s%s",
  35             (attr & GRID_ATTR_CHARSET) ? "acs," : "",
  36             (attr & GRID_ATTR_BRIGHT) ? "bright," : "",
  37             (attr & GRID_ATTR_DIM) ? "dim," : "",
  38             (attr & GRID_ATTR_UNDERSCORE) ? "underscore," : "",
  39             (attr & GRID_ATTR_BLINK)? "blink," : "",
  40             (attr & GRID_ATTR_REVERSE) ? "reverse," : "",
  41             (attr & GRID_ATTR_HIDDEN) ? "hidden," : "",
  42             (attr & GRID_ATTR_ITALICS) ? "italics," : "",
  43             (attr & GRID_ATTR_STRIKETHROUGH) ? "strikethrough," : "",
  44             (attr & GRID_ATTR_UNDERSCORE_2) ? "double-underscore," : "",
  45             (attr & GRID_ATTR_UNDERSCORE_3) ? "curly-underscore," : "",
  46             (attr & GRID_ATTR_UNDERSCORE_4) ? "dotted-underscore," : "",
  47             (attr & GRID_ATTR_UNDERSCORE_5) ? "dashed-underscore," : "",
  48             (attr & GRID_ATTR_OVERLINE) ? "overline," : "");
  49         if (len > 0)
  50                 buf[len - 1] = '\0';
  51
  52         return (buf);
  53 }
  54
  55 int
  56 attributes_fromstring(const char *str)
  57 {
  58         const char      delimiters[] = " ,|";
  59         int             attr;
  60         size_t          end;
  61         u_int           i;
  62         struct {
  63                 const char      *name;
  64                 int              attr;
  65         } table[] = {
  66                 { "acs", GRID_ATTR_CHARSET },
  67                 { "bright", GRID_ATTR_BRIGHT },
  68                 { "bold", GRID_ATTR_BRIGHT },
  69                 { "dim", GRID_ATTR_DIM },
  70                 { "underscore", GRID_ATTR_UNDERSCORE },
  71                 { "blink", GRID_ATTR_BLINK },
  72                 { "reverse", GRID_ATTR_REVERSE },
  73                 { "hidden", GRID_ATTR_HIDDEN },
  74                 { "italics", GRID_ATTR_ITALICS },
  75                 { "strikethrough", GRID_ATTR_STRIKETHROUGH },
  76                 { "double-underscore", GRID_ATTR_UNDERSCORE_2 },
  77                 { "curly-underscore", GRID_ATTR_UNDERSCORE_3 },
  78                 { "dotted-underscore", GRID_ATTR_UNDERSCORE_4 },
  79                 { "dashed-underscore", GRID_ATTR_UNDERSCORE_5 },
  80                 { "overline", GRID_ATTR_OVERLINE }
  81         };
  82
  83         if (*str == '\0' || strcspn(str, delimiters) == 0)
  84                 return (-1);
  85         if (strchr(delimiters, str[strlen(str) - 1]) != NULL)
  86                 return (-1);
  87
  88         if (strcasecmp(str, "default") == 0 || strcasecmp(str, "none") == 0)
  89                 return (0);
  90
  91         attr = 0;
  92         do {
  93                 end = strcspn(str, delimiters);
  94                 for (i = 0; i < nitems(table); i++) {
  95                         if (end != strlen(table[i].name))
  96                                 continue;
  97                         if (strncasecmp(str, table[i].name, end) == 0) {
  98                                 attr |= table[i].attr;
  99                                 break;
 100                         }
 101                 }
 102                 if (i == nitems(table))
 103                         return (-1);
 104                 str += end + strspn(str + end, delimiters);
 105         } while (*str != '\0');
 106
 107         return (attr);
 108 }