C语言编写的ReplaceAll函数的代码
将开发过程中经常用到的一些内容做个珍藏，下边资料是关于C语言编写的ReplaceAll函数的内容。
#include <stdio.h>
#include <malloc.h>
#include <string.h>
if(find == NULL || replaceWith == NULL){
return strdup(src);
}
int count = 0;
int i,j,k;
int srcLen = strlen(src);
int findLen = strlen(find);
int replaceWithLen = strlen(replaceWith);
int cpStrStart = 0;
count = getFindStrCount(src, find);
if(count == 0){
return strdup(src);
}
memset(afterReplaceHead, '0',sizeof(afterReplaceHead));
for(i = 0,j = 0,k = 0;i!=srcLen;i++){
if(src[i] == find[j]){
if(j == 0){
k = i;
}
if(j == (findLen-1)){
j = 0;
strncpy(afterReplaceIndex, srcIndex, i - findLen - cpStrStart + 1);
afterReplaceIndex = afterReplaceIndex + i - findLen - cpStrStart + 1;
srcIndex = srcIndex + i - findLen - cpStrStart + 1;
cpStrStart = i + 1;
strncpy(afterReplaceIndex, replaceWith, replaceWithLen);
afterReplaceIndex = afterReplaceIndex + replaceWithLen;
srcIndex = srcIndex + findLen;
}else{
j++;
}
}else{
if(j != 0){
i = k;
}
j = 0;
}
}
strncpy(afterReplaceIndex, srcIndex, i - cpStrStart);
return afterReplaceHead;
}
int count = 0;
int findLen = strlen(find);
while((position = strstr(position, find)) != NULL){
count++;
position = position + findLen;
}
return count;
}
int main(void){
printf("%sn",r);
free(r);
return 0;
}
