183 lines
4.0 KiB
C
183 lines
4.0 KiB
C
/*
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*******************************************************************************
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* *
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* COPYRIGHT: *
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* (C) Copyright International Business Machines Corporation, 1998 *
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* Licensed Material - Program-Property of IBM - All Rights Reserved. *
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* US Government Users Restricted Rights - Use, duplication, or disclosure *
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* restricted by GSA ADP Schedule Contract with IBM Corp. *
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* *
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*******************************************************************************
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*
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* File ustring.h
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*
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* Modification History:
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*
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* Date Name Description
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* 12/07/98 bertrand Creation.
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*******************************************************************************
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*/
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#include "ustring.h"
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#include "utypes.h"
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#include "cstring.h"
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#include "ucnv.h"
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static UConverter* _defaultConverter = NULL;
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static UErrorCode gErr = U_ZERO_ERROR;
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#define MAX_STRLEN 0x0FFFFFFF
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/*Lazy evaluating macro for the default converter*/
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#define defaultConverter (_defaultConverter==NULL)?_defaultConverter=ucnv_open(NULL, &gErr):_defaultConverter
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UChar*
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u_strcat(UChar *dst,
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const UChar *src)
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{
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UChar *anchor = dst; /* save a pointer to start of dst */
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while(*dst++); /* To end of first string */
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dst--; /* Return to the null */
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while(*dst++ = *src++); /* copy string 2 over */
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return anchor;
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}
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UChar*
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u_strncat(UChar *dst,
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const UChar *src,
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int32_t n )
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{
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UChar *anchor = dst; /* save a pointer to start of dst */
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if (!n) return dst;
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while(*dst++); /* To end of first string */
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dst--; /* Return to the null */
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while((*dst++ = *src++) && --n); /* copy string 2 over */
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*dst = 0x0000;
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return anchor;
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}
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UChar*
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u_strchr(const UChar *s,
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UChar c)
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{
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while((*s != c) && *s)
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s++;
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if(*s == c)
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return (UChar*) s;
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return NULL;
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}
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int32_t
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u_strcmp(const UChar *s1,
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const UChar *s2)
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{
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while((*s1 == *s2) && *s1) {
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s1++;
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s2++;
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}
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return (int32_t)*s1 - (int32_t)*s2;
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}
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int32_t
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u_strncmp(const UChar *s1,
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const UChar *s2,
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int32_t n)
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{
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if (!n) return 0;
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while((*s1 == *s2) && *s1 && --n) {
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s1++;
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s2++;
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}
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return (int32_t)*s1 - (int32_t)*s2;
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}
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UChar*
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u_strcpy(UChar *dst,
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const UChar *src)
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{
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UChar *anchor = dst; /* save the start of result string */
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while(*dst++ = *src++);
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return anchor;
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}
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UChar*
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u_strncpy(UChar *dst,
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const UChar *src,
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int32_t n)
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{
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UChar *anchor = dst; /* save the start of result string */
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if (!n) return dst;
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while((*dst++ = *src++) && --n);
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*dst = 0x0000;
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return anchor;
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}
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int32_t
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u_strlen(const UChar *s)
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{
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int32_t i = 0;
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while(*s++)
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i++;
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return i;
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}
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UChar* u_uastrcpy(UChar *ucs1,
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const char *s2 )
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{
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UErrorCode err = U_ZERO_ERROR;
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ucnv_toUChars(defaultConverter,
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ucs1,
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MAX_STRLEN,
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s2,
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icu_strlen(s2),
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&err);
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return ucs1;
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}
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UChar* u_uastrncpy(UChar *ucs1,
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const char *s2 ,
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int32_t n)
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{
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UErrorCode err = U_ZERO_ERROR;
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int32_t end = ucnv_toUChars(defaultConverter,
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ucs1,
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n,
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s2,
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icu_strlen(s2),
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&err);
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ucs1[icu_min(end,n)] = 0x0000;
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return ucs1;
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}
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char* u_austrcpy(char *s1,
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const UChar *ucs2 )
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{
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char * anchor = s1; /* save the start of result string */
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UErrorCode err = U_ZERO_ERROR;
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int32_t len = ucnv_fromUChars(defaultConverter,
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s1,
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MAX_STRLEN,
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ucs2,
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&err);
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s1[len] = '\0';
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return s1;
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}
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