c 正则匹配简单运用

int status, i;

int cflags = REG_EXTENDED;

regmatch_t pmatch[10];

const size_t nmatch = 10;

regex_t reg; char buf[] = "this is to cmp to the ZhengZe\n";

char requestUrl[ 1024 ] = "";char hashUrl[ 1024 ] = "";char match_1[1024] = "";char match_2[1024] = "";

char match_3[1024] = "";

regcomp( ® , pattern, cflags ); //pattern 为匹配的正则规则

status = regexec( ®, buf, nmatch, pmatch , 0 ); //把响应的匹配到的$1 $2 等，匹配到值的偏移相应的存在pmatch里面

if( status == REG_NOMATCH )printf("NO MATCH\n");

else if( status == 0 )

{

printf("Match It \n");

for( i = pmatch[0].rm_so; i< pmatch[0].rm_eo; ++i)

{

putchar( buf[i] );

}

putchar('\n');// printf("---%d----\n", pmatch[1].rm_so );

strncpy( match_1, buf+pmatch[1].rm_so, pmatch[1].rm_eo - pmatch[1].rm_so );

strncpy( match_2, buf+pmatch[2].rm_so, pmatch[2].rm_eo - pmatch[2].rm_so );

strncpy( match_3, buf+pmatch[3].rm_so, pmatch[3].rm_eo - pmatch[3].rm_so );

printf("*%s*\n", match_1);printf("*%s*\n", match_2);printf("*%s*\n", match_3);

}regfree( ® ); //释放