diff options
Diffstat (limited to 'util/strgutil.c')
| -rw-r--r-- | util/strgutil.c | 86 |
1 files changed, 82 insertions, 4 deletions
diff --git a/util/strgutil.c b/util/strgutil.c index 9a8cffe9e..def52f31e 100644 --- a/util/strgutil.c +++ b/util/strgutil.c @@ -65,6 +65,7 @@ static ushort latin2_unicode[128] = { 0x0159,0x016F,0x00FA,0x0171,0x00FC,0x00FD,0x0163,0x02D9 }; + static const char *active_charset_name = "iso-8859-1"; static ushort *active_charset = NULL; static int no_translation = 0; @@ -193,6 +194,25 @@ memistr( const char *buf, size_t buflen, const char *sub ) return NULL ; } +const char * +ascii_memistr( const char *buf, size_t buflen, const char *sub ) +{ + const byte *t, *s ; + size_t n; + + for( t=buf, n=buflen, s=sub ; n ; t++, n-- ) + if( ascii_toupper(*t) == ascii_toupper(*s) ) { + for( buf=t++, buflen = n--, s++; + n && ascii_toupper(*t) == ascii_toupper(*s); t++, s++, n-- ) + ; + if( !*s ) + return buf; + t = buf; n = buflen; s = sub ; + } + + return NULL ; +} + /**************** * Wie strncpy(), aber es werden maximal n-1 zeichen kopiert und ein * '\0' angeh�ngt. Ist n = 0, so geschieht nichts, ist Destination @@ -325,22 +345,23 @@ string_count_chr( const char *string, int c ) int set_native_charset( const char *newset ) { - if( !stricmp( newset, "iso-8859-1" ) ) { + if( !ascii_strcasecmp( newset, "iso-8859-1" ) ) { active_charset_name = "iso-8859-1"; no_translation = 0; active_charset = NULL; } - else if( !stricmp( newset, "iso-8859-2" ) ) { + else if( !ascii_strcasecmp( newset, "iso-8859-2" ) ) { active_charset_name = "iso-8859-2"; no_translation = 0; active_charset = latin2_unicode; } - else if( !stricmp( newset, "koi8-r" ) ) { + else if( !ascii_strcasecmp( newset, "koi8-r" ) ) { active_charset_name = "koi8-r"; no_translation = 0; active_charset = koi8_unicode; } - else if( !stricmp (newset, "utf8" ) || !stricmp(newset, "utf-8") ) { + else if( !ascii_strcasecmp (newset, "utf8" ) + || !ascii_strcasecmp(newset, "utf-8") ) { active_charset_name = "utf-8"; no_translation = 1; active_charset = NULL; @@ -582,6 +603,63 @@ utf8_to_native( const char *string, size_t length ) } } +/**************************************************** + ******** locale insensitive ctype functions ******** + ****************************************************/ +/* FIXME: replace them by a table lookup and macros */ +int +ascii_isupper (int c) +{ + return c >= 'A' && c <= 'Z'; +} + +int +ascii_islower (int c) +{ + return c >= 'a' && c <= 'z'; +} + +int +ascii_toupper (int c) +{ + if (c >= 'a' && c <= 'z') + c &= ~0x20; + return c; +} + +int +ascii_tolower (int c) +{ + if (c >= 'A' && c <= 'Z') + c |= 0x20; + return c; +} + + +int +ascii_strcasecmp( const char *a, const char *b ) +{ + if (a == b) + return 0; + + for (; *a && *b; a++, b++) { + if (*a != *b && ascii_toupper(*a) != ascii_toupper(*b)) + break; + } + return *a == *b? 0 : (ascii_toupper (*a) - ascii_toupper (*b)); +} + +int +ascii_memcasecmp( const char *a, const char *b, size_t n ) +{ + if (a == b) + return 0; + for ( ; n; n--, a++, b++ ) { + if( *a != *b && ascii_toupper (*a) != ascii_toupper (*b) ) + return *a == *b? 0 : (ascii_toupper (*a) - ascii_toupper (*b)); + } + return 0; +} /********************************************* |