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api: add new functions strcasecmp_range and strncasecmp_range

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This commit is contained in:
Sebastien Helleu
2011-11-12 10:37:44 +01:00
parent 538e8257f6
commit 491412b314
10 changed files with 386 additions and 2 deletions
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src/core/wee-string.c
+68
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@@ -138,6 +138,37 @@ string_strcasecmp (const char *string1, const char *string2)
return (string1[0]) ? 1 : ((string2[0]) ? -1 : 0);
}
/*
* string_strcasecmp_range: locale and case independent string comparison
* using range to compare case:
* - range = 26: A-Z ==> a-z
* - range = 29: A-Z [ \ ] ==> a-z { | }
* - range = 30: A-Z [ \ ] ^ ==> a-z { | } ~
* (ranges 29 and 30 are used by some protocols like
* IRC)
*/
int
string_strcasecmp_range (const char *string1, const char *string2, int range)
{
int diff;
if (!string1 || !string2)
return (string1) ? 1 : ((string2) ? -1 : 0);
while (string1[0] && string2[0])
{
diff = utf8_charcasecmp_range (string1, string2, range);
if (diff != 0)
return diff;
string1 = utf8_next_char (string1);
string2 = utf8_next_char (string2);
}
return (string1[0]) ? 1 : ((string2[0]) ? -1 : 0);
}
/*
* string_strncasecmp: locale and case independent string comparison
* with max length
@@ -169,6 +200,43 @@ string_strncasecmp (const char *string1, const char *string2, int max)
return (string1[0]) ? 1 : ((string2[0]) ? -1 : 0);
}
/*
* string_strncasecmp_range: locale and case independent string comparison
* with max length, using range to compare case:
* - range = 26: A-Z ==> a-z
* - range = 29: A-Z [ \ ] ==> a-z { | }
* - range = 30: A-Z [ \ ] ^ ==> a-z { | } ~
* (ranges 29 and 30 are used by some protocols like
* IRC)
*/
int
string_strncasecmp_range (const char *string1, const char *string2, int max,
int range)
{
int count, diff;
if (!string1 || !string2)
return (string1) ? 1 : ((string2) ? -1 : 0);
count = 0;
while ((count < max) && string1[0] && string2[0])
{
diff = utf8_charcasecmp_range (string1, string2, range);
if (diff != 0)
return diff;
string1 = utf8_next_char (string1);
string2 = utf8_next_char (string2);
count++;
}
if (count >= max)
return 0;
else
return (string1[0]) ? 1 : ((string2[0]) ? -1 : 0);
}
/*
* string_strcmp_ignore_chars: compare 2 strings, ignoring ignore some chars
*/