字符串替换， src 源字符串， buf_size 缓冲大小， search搜索的字符串大小， repstr 需要替换成的字符串
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73 |
int str_replace(char
*src, unsigned int
buf_size, char* search, char
*repstr){ if(!src || !search || !repstr|| buf_size < 0) { return
-1; } const
unsigned int
size = buf_size + 1024 ; char
* temp = (char
*)malloc(size); memset(temp, 0x00, size); char
* src_pos = src; char
* result = src; char
* dst_pos = temp; unsigned int
length = 0; int
search_len = strlen(search); int
rep_len = strlen(repstr); do { src_pos = strstr(src_pos, search); if(!src_pos) { strcpy(dst_pos, result); length += search_len; break; } strncpy(dst_pos, result, src_pos - result); dst_pos += src_pos - result; //replace strcat(dst_pos, repstr); dst_pos += rep_len; length += src_pos - result + rep_len; src_pos += search_len; result = src_pos; } while(src_pos); if(length >= buf_size) { free(temp); temp = NULL; return
-1; } else { _snprintf_c(src,buf_size,"%s", temp); free(temp); temp = NULL; return
0; }}int
main(void){ char
buf[512] ={"123%4235%%6723"}; printf("%s\n", buf); str_replace(buf,512,"%","love"); printf("%s\n", buf); return
0;} |
结果输出：
123%4235%%6723
123love4235lovelove6723
str_replace字符串替换,码迷,mamicode.com
原文地址：http://www.cnblogs.com/iclk/p/3699856.html
