From 7cc9aad0a63641636b2a317105c26b7e82970c97 Mon Sep 17 00:00:00 2001
From: fengbh <1953356163@qq.com>
Date: Mon, 9 Dec 2024 16:06:47 +0800
Subject: [PATCH] add me241103_cRe

---
 .gitignore             |  8 ++++----
 ReadMe.md              |  1 +
 me241103_cRe/Makefile  |  2 ++
 me241103_cRe/ReadMe.md | 22 +++++++++++++++++++++
 me241103_cRe/main.c    | 44 ++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 73 insertions(+), 4 deletions(-)
 create mode 100644 me241103_cRe/Makefile
 create mode 100644 me241103_cRe/ReadMe.md
 create mode 100644 me241103_cRe/main.c

diff --git a/.gitignore b/.gitignore
index 6f0df8d..2b7b337 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,5 @@
-4_c_re
-5_vpi
-sv_lab
 .vscode/
+sv_lab
 
 me241200_zerotierApi/env/
 
@@ -37,4 +35,6 @@ me241102_vpi/ucli.key
 me241102_vpi/vc_hdrs.h
 me241102_vpi/wave.fsdb
 me241102_vpi/*.o
-me241102_vpi/*.so
\ No newline at end of file
+me241102_vpi/*.so
+
+me241103_cRe/main
diff --git a/ReadMe.md b/ReadMe.md
index 355fa58..93021c1 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -9,5 +9,6 @@ script work是一系列自己编选的脚本合集。
 | [me241100_svExample](./me241100_svExample)     | 使用vcs编译sv的简单例子                               | 100% |                                                              |      |
 | [me241201_dpi](./me241101_dpi)                 | 使用vcs编译dpi的简单例子                              | 100% | [PLI 学习](https://www.cnblogs.com/fengbohan/p/18595069/pli-learning-zx6kpe) |      |
 | [me241102_vpi](./me241102_vpi)                 | 使用vcs编译vpi的简单例子                              | 100% | [PLI 学习](https://www.cnblogs.com/fengbohan/p/18595069/pli-learning-zx6kpe) |      |
+| [me241103_cRe](./me241103_cRe)                 | 使用c语言进行正则匹配的例子                           | 100% |                                                              |      |
 | [me241200_zerotierApi](./me241200_zerotierApi) | 使用zerotier的api获取网络信息，生成smartdns的配置文件 | 100% |                                                              |      |
 
diff --git a/me241103_cRe/Makefile b/me241103_cRe/Makefile
new file mode 100644
index 0000000..3e76c4d
--- /dev/null
+++ b/me241103_cRe/Makefile
@@ -0,0 +1,2 @@
+main:
+	gcc -o main main.c
\ No newline at end of file
diff --git a/me241103_cRe/ReadMe.md b/me241103_cRe/ReadMe.md
new file mode 100644
index 0000000..12e2cb0
--- /dev/null
+++ b/me241103_cRe/ReadMe.md
@@ -0,0 +1,22 @@
+# cRE
+
+## 概述
+
+使用c语言，进行正则表达式的例子。
+
+## 快速开始
+
+### 一、编译
+
+```bash
+make
+```
+
+### 二、运行
+
+```bash
+./main
+```
+
+
+
diff --git a/me241103_cRe/main.c b/me241103_cRe/main.c
new file mode 100644
index 0000000..f3f7fe1
--- /dev/null
+++ b/me241103_cRe/main.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <regex.h>
+
+#define MAX_MATCHES 10
+
+void extract_numbers(const char *text) {
+    regex_t regex;
+    regmatch_t matches[MAX_MATCHES];
+    const char *pattern = "[0-9]+";
+    int ret;
+
+    ret = regcomp(&regex, pattern, REG_EXTENDED);
+    if (ret != 0) {
+        char error_message[100];
+        regerror(ret, &regex, error_message, sizeof(error_message));
+        printf("Regex compilation error: %s\n", error_message);
+        return;
+    }
+
+    while (1) {
+        ret = regexec(&regex, text, MAX_MATCHES, matches, 0);
+        if (ret != 0) {
+            break;
+        }
+
+        for (int i = 0; i < MAX_MATCHES && matches[i].rm_so != -1; i++) {
+            int start = matches[i].rm_so;
+            int end = matches[i].rm_eo;
+            printf("Match found: %.*s\n", end - start, text + start);
+        }
+
+        printf("%s\n", text);
+        text += matches[0].rm_eo;
+    }
+
+    regfree(&regex);
+}
+
+int main() {
+    const char *text = "abc123xyz456";
+    extract_numbers(text);
+
+    return 0;
+}