188 lines
4.1 KiB
C
188 lines
4.1 KiB
C
/*
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******************************************************************************
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*
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* Copyright (C) 1997-2001, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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******************************************************************************
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*
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* File CSTRING.C
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*
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* @author Helena Shih
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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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* 6/18/98 hshih Created
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* 09/08/98 stephen Added include for ctype, for Mac Port
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* 11/15/99 helena Integrated S/390 IEEE changes.
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******************************************************************************
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*/
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#include <stdlib.h>
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#include "unicode/utypes.h"
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#include "unicode/putil.h"
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#include "cmemory.h"
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#include "cstring.h"
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char*
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T_CString_toLowerCase(char* str)
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{
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char* origPtr = str;
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if (str) {
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do
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*str = (char)tolower(*str);
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while (*(str++));
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}
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return origPtr;
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}
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char*
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T_CString_toUpperCase(char* str)
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{
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char* origPtr = str;
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if (str) {
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do
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*str = (char)toupper(*str);
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while (*(str++));
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}
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return origPtr;
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}
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/*Takes a int32_t and fills in a char* string with that number "radix"-based*/
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void T_CString_integerToString(char* buffer, int32_t i, int32_t radix)
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{
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int32_t length=0;
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int32_t num = 0;
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int8_t digit;
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char temp;
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while (i>=radix)
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{
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num = i/radix;
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digit = (int8_t)(i - num*radix);
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buffer[length++] = (char)(T_CString_itosOffset(digit));
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i = num;
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}
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buffer[length] = (char)(T_CString_itosOffset(i));
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buffer[length+1] = '\0';
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/*Reverses the string*/
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for (i = 0; i < length; ++i, --length) {
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temp = buffer[length];
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buffer[length] = buffer[i];
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buffer[i] = temp;
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}
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return;
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}
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int32_t
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T_CString_stringToInteger(const char *integerString, int32_t radix)
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{
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char *end;
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return strtoul(integerString, &end, radix);
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}
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U_CAPI int U_EXPORT2
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T_CString_stricmp(const char *str1, const char *str2) {
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if(str1==NULL) {
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if(str2==NULL) {
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return 0;
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} else {
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return -1;
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}
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} else if(str2==NULL) {
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return 1;
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} else {
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/* compare non-NULL strings lexically with lowercase */
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int rc;
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unsigned char c1, c2;
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for(;;) {
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c1=(unsigned char)*str1;
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c2=(unsigned char)*str2;
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if(c1==0) {
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if(c2==0) {
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return 0;
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} else {
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return -1;
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}
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} else if(c2==0) {
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return 1;
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} else {
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/* compare non-zero characters with lowercase */
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rc=(int)(unsigned char)uprv_tolower(c1)-(int)(unsigned char)uprv_tolower(c2);
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if(rc!=0) {
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return rc;
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}
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}
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++str1;
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++str2;
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}
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}
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}
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U_CAPI int U_EXPORT2
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T_CString_strnicmp(const char *str1, const char *str2, uint32_t n) {
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if(str1==NULL) {
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if(str2==NULL) {
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return 0;
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} else {
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return -1;
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}
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} else if(str2==NULL) {
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return 1;
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} else {
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/* compare non-NULL strings lexically with lowercase */
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int rc;
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unsigned char c1, c2;
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for(; n--;) {
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c1=(unsigned char)*str1;
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c2=(unsigned char)*str2;
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if(c1==0) {
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if(c2==0) {
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return 0;
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} else {
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return -1;
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}
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} else if(c2==0) {
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return 1;
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} else {
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/* compare non-zero characters with lowercase */
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rc=(int)(unsigned char)uprv_tolower(c1)-(int)(unsigned char)uprv_tolower(c2);
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if(rc!=0) {
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return rc;
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}
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}
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++str1;
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++str2;
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}
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}
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return 0;
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}
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U_CAPI char *uprv_strdup(const char *src) {
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size_t len = strlen(src) + 1;
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char *dup = (char *) malloc(len);
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if (dup) {
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uprv_memcpy(dup, src, len);
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}
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return dup;
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}
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