2000-09-08 07:19:10 +08:00
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#include "portable.h"
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#include <ldap_pvt_uc.h>
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int ucstrncmp(
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const ldap_unicode_t *u1,
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const ldap_unicode_t *u2,
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ber_len_t n )
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{
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for(; 0 < n; ++u1, ++u2, --n ) {
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if( *u1 != *u2 ) {
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return *u1 < *u2 ? -1 : +1;
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}
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if ( *u1 == 0 ) {
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return 0;
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}
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}
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return 0;
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}
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int ucstrncasecmp(
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const ldap_unicode_t *u1,
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const ldap_unicode_t *u2,
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ber_len_t n )
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{
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for(; 0 < n; ++u1, ++u2, --n ) {
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ldap_unicode_t uu1 = uctoupper( *u1 );
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ldap_unicode_t uu2 = uctoupper( *u2 );
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if( uu1 != uu2 ) {
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return uu1 < uu2 ? -1 : +1;
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}
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if ( uu1 == 0 ) {
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return 0;
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}
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}
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return 0;
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}
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ldap_unicode_t * ucstrnchr(
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const ldap_unicode_t *u,
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ber_len_t n,
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ldap_unicode_t c )
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{
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for(; 0 < n; ++u, --n ) {
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if( *u == c ) {
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return (ldap_unicode_t *) u;
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}
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}
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return NULL;
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}
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ldap_unicode_t * ucstrncasechr(
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const ldap_unicode_t *u,
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ber_len_t n,
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ldap_unicode_t c )
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{
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c = uctoupper( c );
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for(; 0 < n; ++u, --n ) {
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if( uctoupper( *u ) == c ) {
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return (ldap_unicode_t *) u;
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}
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}
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return NULL;
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}
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void ucstr2upper(
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ldap_unicode_t *u,
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ber_len_t n )
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{
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for(; 0 < n; ++u, --n ) {
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*u = uctoupper( *u );
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}
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}
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2001-01-19 23:52:58 +08:00
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char * UTF8normalize(
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const char *s,
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char casefold )
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{
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int i, j, len, clen, outpos, ucsoutlen, outsize, last;
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char *out;
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unsigned long *ucs, *p, *ucsout;
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static unsigned char mask[] = {
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0, 0x7f, 0x1f, 0x0f, 0x07, 0x03, 0x01 };
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if ( s == NULL ) {
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return NULL;
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}
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len = strlen( s );
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if ( len == 0 ) {
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out = (char *) malloc( 1 );
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*out = '\0';
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return out;
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}
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outsize = len + 7;
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out = (char *) malloc( outsize );
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if ( out == NULL ) {
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return NULL;
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}
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outpos = 0;
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/* finish off everything up to character before first non-ascii */
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if ( LDAP_UTF8_ISASCII( s ) ) {
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for ( i = 1; (i < len) && LDAP_UTF8_ISASCII(s + i); i++ ) {
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out[outpos++] = casefold ? TOUPPER( s[i-1] ) : s[i-1];
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}
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if ( i == len ) {
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out[outpos++] = casefold ? TOUPPER( s[len - 1] ) : s[len - 1];
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out[outpos] = '\0';
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return out;
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}
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} else {
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i = 0;
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}
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2000-09-08 07:19:10 +08:00
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2001-01-19 23:52:58 +08:00
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p = ucs = (long *) malloc( len * sizeof(*ucs) );
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if ( ucs == NULL ) {
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free(out);
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return NULL;
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}
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/* convert character before first non-ascii to ucs-4 */
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if ( i > 0 ) {
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*p = casefold ? TOUPPER( s[i - 1] ) : s[i - 1];
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p++;
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}
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/* s[i] is now first non-ascii character */
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for (;;) {
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/* s[i] is non-ascii */
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/* convert everything up to next ascii to ucs-4 */
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while ( i < len ) {
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clen = LDAP_UTF8_CHARLEN( s + i );
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if ( clen == 0 ) {
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free( ucs );
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free( out );
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return NULL;
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}
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if ( clen == 1 ) {
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/* ascii */
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break;
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}
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*p = s[i] & mask[clen];
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i++;
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for( j = 1; j < clen; j++ ) {
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if ( (s[i] & 0xc0) != 0x80 ) {
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free( ucs );
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free( out );
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return NULL;
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}
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*p <<= 6;
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*p |= s[i] & 0x3f;
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i++;
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}
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if ( casefold ) {
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*p = uctoupper( *p );
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}
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p++;
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}
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/* normalize ucs of length p - ucs */
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uccanondecomp( ucs, p - ucs, &ucsout, &ucsoutlen );
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ucsoutlen = uccanoncomp( ucsout, ucsoutlen );
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/* convert ucs to utf-8 and store in out */
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for ( j = 0; j < ucsoutlen; j++ ) {
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/* allocate more space if not enough room for
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6 bytes and terminator */
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if ( outsize - outpos < 7 ) {
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outsize = ucsoutlen - j + outpos + 6;
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out = (char *) realloc( out, outsize );
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if ( out == NULL ) {
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free( ucs );
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return NULL;
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}
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}
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outpos += ldap_ucs4_to_utf8( ucsout[j], &out[outpos] );
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}
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if ( i == len ) {
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break;
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}
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last = i;
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/* s[i] is ascii */
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/* finish off everything up to char before next non-ascii */
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for ( i++; (i < len) && LDAP_UTF8_ISASCII(s + i); i++ ) {
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out[outpos++] = casefold ? TOUPPER( s[i-1] ) : s[i-1];
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}
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if ( i == len ) {
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out[outpos++] = casefold ? TOUPPER( s[len - 1] ) : s[len - 1];
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break;
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}
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/* convert character before next non-ascii to ucs-4 */
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*ucs = casefold ? TOUPPER( s[i - 1] ) : s[i - 1];
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p = ucs + 1;
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}
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free( ucs );
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out[outpos] = '\0';
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return out;
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}
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