pang@1: #include <stdio.h>
pang@1: #include <stdlib.h>
pang@1: #include <regex.h>
pang@1: 
pang@1: #define __USE_GNU
pang@1: #include <string.h>
pang@1: 
pang@1: const size_t BUFSIZE = 5000;
pang@1: 
pang@1: const char *CLR_START = "-CLR_START-";
pang@1: const char *CLR_END = "-CLR_END-";
pang@1: 
pang@1: int main(int argc, char **argv)
pang@1: {
pang@1: 	char *buf = calloc(BUFSIZE, sizeof(char));
pang@1: 
pang@1: 	regex_t *re = calloc(1, sizeof(regex_t));
pang@2: 	regcomp(re, "Hello", REG_EXTENDED);
pang@1: 
pang@2: 	regmatch_t *rem = calloc(1, sizeof(regmatch_t));
pang@1: 
pang@1: 	size_t CLR_START_len = strlen(CLR_START);
pang@1: 	size_t CLR_END_len = strlen(CLR_END);
pang@1: 
pang@2: 	char *out = NULL;
pang@1: 	unsigned int out_pos = 0;
pang@2: 	unsigned int buf_pos = 0;
pang@1: 
pang@1: 	while (fgets(buf, BUFSIZE, stdin))
pang@1: 	{
pang@2: 		int i = 0;
pang@2: 		int so = -1;
pang@2: 		int eo = -1;
pang@1: 
pang@2: 		do
pang@2: 		{
pang@2: 			regexec(re, &buf[buf_pos], 1, rem, 0);
pang@1: 
pang@2: 			size_t out_len = strlen(&buf[buf_pos]);
pang@2: 			if (out_len >= (BUFSIZE - buf_pos))
pang@2: 				out_len = (BUFSIZE - buf_pos) - 1;
pang@1: 
pang@2: 			so = rem[0].rm_so;
pang@2: 			eo = rem[0].rm_eo;
pang@1: 
pang@2: 			fprintf(stderr, "%d %d \n", so, eo);		//d// 20100327 PBA
pang@1: 
pang@1: 			if (so >= 0 && eo >= 0)
pang@1: 			{
pang@1: 				int match_len = eo - so;
pang@1: 				out_len += CLR_START_len + CLR_END_len;
pang@1: 				out = (char *)realloc(out, out_len*sizeof(char));
pang@2: 				if (i++ == 0)
pang@1: 				{
pang@2: 					strncpy(out, buf, so);
pang@1: 					out_pos += so;
pang@2: 					buf_pos += so;
pang@1: 				}
pang@1: 				strncpy(&out[out_pos], CLR_START, CLR_START_len);
pang@1: 				out_pos += CLR_START_len;
pang@2: 				strncpy(&out[out_pos], &buf[buf_pos], match_len);
pang@1: 				out_pos += match_len;
pang@1: 				strncpy(&out[out_pos], CLR_END, CLR_END_len);
pang@1: 				out_pos += CLR_END_len;
pang@2: 
pang@2: 				buf_pos += match_len;
pang@1: 			}
pang@2: 			else
pang@2: 				strncpy(&out[out_pos], &buf[eo], out_len - out_pos);
pang@1: 		}
pang@2: 		while (so >= 0 && eo >= 0);
pang@1: 
pang@1: 		fputs(out, stdout);
pang@1: 	}
pang@1: 
pang@1: 	return 0;
pang@1: }