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      1 /* $OpenBSD$ */
      2 
      3 /*
      4  * Copyright (c) 2009 Joshua Elsasser <josh (at) 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%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 	    (attr & GRID_ATTR_NOATTR) ? "noattr," : "");
     50 	if (len > 0)
     51 		buf[len - 1] = '\0';
     52 
     53 	return (buf);
     54 }
     55 
     56 int
     57 attributes_fromstring(const char *str)
     58 {
     59 	const char	delimiters[] = " ,|";
     60 	int		attr;
     61 	size_t		end;
     62 	u_int		i;
     63 	struct {
     64 		const char	*name;
     65 		int		 attr;
     66 	} table[] = {
     67 		{ "acs", GRID_ATTR_CHARSET },
     68 		{ "bright", GRID_ATTR_BRIGHT },
     69 		{ "bold", GRID_ATTR_BRIGHT },
     70 		{ "dim", GRID_ATTR_DIM },
     71 		{ "underscore", GRID_ATTR_UNDERSCORE },
     72 		{ "blink", GRID_ATTR_BLINK },
     73 		{ "reverse", GRID_ATTR_REVERSE },
     74 		{ "hidden", GRID_ATTR_HIDDEN },
     75 		{ "italics", GRID_ATTR_ITALICS },
     76 		{ "strikethrough", GRID_ATTR_STRIKETHROUGH },
     77 		{ "double-underscore", GRID_ATTR_UNDERSCORE_2 },
     78 		{ "curly-underscore", GRID_ATTR_UNDERSCORE_3 },
     79 		{ "dotted-underscore", GRID_ATTR_UNDERSCORE_4 },
     80 		{ "dashed-underscore", GRID_ATTR_UNDERSCORE_5 },
     81 		{ "overline", GRID_ATTR_OVERLINE }
     82 	};
     83 
     84 	if (*str == '\0' || strcspn(str, delimiters) == 0)
     85 		return (-1);
     86 	if (strchr(delimiters, str[strlen(str) - 1]) != NULL)
     87 		return (-1);
     88 
     89 	if (strcasecmp(str, "default") == 0 || strcasecmp(str, "none") == 0)
     90 		return (0);
     91 
     92 	attr = 0;
     93 	do {
     94 		end = strcspn(str, delimiters);
     95 		for (i = 0; i < nitems(table); i++) {
     96 			if (end != strlen(table[i].name))
     97 				continue;
     98 			if (strncasecmp(str, table[i].name, end) == 0) {
     99 				attr |= table[i].attr;
    100 				break;
    101 			}
    102 		}
    103 		if (i == nitems(table))
    104 			return (-1);
    105 		str += end + strspn(str + end, delimiters);
    106 	} while (*str != '\0');
    107 
    108 	return (attr);
    109 }
    110