linux pcre 在线安装

sudo apt update
sudo apt install libpcre3 libpcre3-dev

sudo yum install pcre pcre-devel

sudo dnf install pcre pcre-devel

sudo pacman -S pcre

#include <stdio.h>
#include <pcre.h>

int main() {
    const char *error;
    int erroffset;
    pcre *re;
    const char *pattern = "^\\d{3}-\\d{3}-\\d{4}$"; // 美国电话号码格式
    const char *subject = "123-456-7890";

    re = pcre_compile(pattern, 0, &error, &erroffset, NULL);
    if (re == NULL) {
        printf("PCRE compilation failed at offset %d: %s\n", erroffset, error);
        return 1;
    }

    int ovector[30];
    int rc = pcre_exec(re, NULL, subject, strlen(subject), 0, 0, ovector, 30);
    if (rc < 0) {
        if (rc == PCRE_ERROR_NOMATCH) {
            printf("No match found.\n");
        } else {
            printf("Matching error %d\n", rc);
        }
        pcre_free(re);
        return 1;
    }

    printf("Match found!\n");
    pcre_free(re);
    return 0;
}

gcc -o pcre_example pcre_example.c -lpcre
./pcre_example