src/types.c

   1 /* Copyright (c) 2006-2015 Jonas Fonseca <jonas.fonseca@gmail.com>
   2  *
   3  * This program is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU General Public License as
   5  * published by the Free Software Foundation; either version 2 of
   6  * the License, or (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #include "tig/tig.h"
  15 #include "tig/types.h"
  16
  17 /*
  18  * Enumerations
  19  */
  20
  21 int
  22 string_enum_compare(const char *str1, const char *str2, int len)
  23 {
  24         size_t i;
  25
  26         /* Diff-Header == DIFF_HEADER */
  27         for (i = 0; i < len; i++) {
  28                 if (ascii_toupper(str1[i]) == ascii_toupper(str2[i]))
  29                         continue;
  30
  31                 if (string_enum_sep(str1[i]) &&
  32                     string_enum_sep(str2[i]))
  33                         continue;
  34
  35                 return str1[i] - str2[i];
  36         }
  37
  38         return 0;
  39 }
  40
  41 bool
  42 enum_name_copy(char buf[], size_t bufsize, const char *name)
  43 {
  44         int bufpos;
  45
  46         for (bufpos = 0; name[bufpos] && bufpos < bufsize - 1; bufpos++) {
  47                 buf[bufpos] = ascii_tolower(name[bufpos]);
  48                 if (string_enum_sep(buf[bufpos]))
  49                         buf[bufpos] = '-';
  50         }
  51
  52         buf[bufpos] = 0;
  53         return bufpos < bufsize;
  54 }
  55
  56 const char *
  57 enum_name(const char *name)
  58 {
  59         static char buf[SIZEOF_STR];
  60
  61         return enum_name_copy(buf, sizeof(buf), name) ? buf : name;
  62 }
  63
  64 bool
  65 enum_name_prefixed(char buf[], size_t bufsize, const char *prefix, const char *name)
  66 {
  67         char prefixed[SIZEOF_STR];
  68
  69         if (*prefix) {
  70                 if (!string_format(prefixed, "%s-%s", prefix, name))
  71                         return FALSE;
  72                 name = prefixed;
  73         }
  74
  75         return enum_name_copy(buf, bufsize, name);
  76 }
  77
  78 const struct enum_map *
  79 find_enum_map(const char *type)
  80 {
  81         static struct {
  82                 const char *type;
  83                 const struct enum_map *map;
  84         } mappings[] = {
  85 #define DEFINE_ENUM_MAPPING(name, macro) { #name, name##_map },
  86                 ENUM_INFO(DEFINE_ENUM_MAPPING)
  87         };
  88         int i;
  89
  90         for (i = 0; i < ARRAY_SIZE(mappings); i++)
  91                 if (!strcmp(type, mappings[i].type))
  92                         return mappings[i].map;
  93         return NULL;
  94 }
  95
  96 bool
  97 map_enum_do(const struct enum_map_entry *map, size_t map_size, int *value, const char *name)
  98 {
  99         size_t namelen = strlen(name);
 100         int i;
 101
 102         for (i = 0; i < map_size; i++)
 103                 if (enum_equals(map[i], name, namelen)) {
 104                         *value = map[i].value;
 105                         return TRUE;
 106                 }
 107
 108         return FALSE;
 109 }
 110
 111 #define DEFINE_ENUM_MAPS(name, macro) DEFINE_ENUM_MAP(name, macro);
 112 ENUM_INFO(DEFINE_ENUM_MAPS)
 113
 114 /* vim: set ts=8 sw=8 noexpandtab: */