https://github.com/imlk0/c99-lexer

homemade lexer of c99 written in c++
https://github.com/imlk0/c99-lexer

Last synced: 12 days ago
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homemade lexer of c99 written in c++

• Host: GitHub
• URL: https://github.com/imlk0/c99-lexer
• Owner: imlk0
• Created: 2020-04-02T09:11:13.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2021-03-20T17:59:35.000Z (over 3 years ago)
• Last Synced: 2023-12-05T10:32:21.847Z (11 months ago)
• Language: C
• Size: 20.5 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# c99-lexer

![C/C++ CI](https://github.com/KB5201314/lexical-analyzer/workflows/C/C++%20CI/badge.svg)

用C++实现的一个，基于C99标准的词法分析器

### feature

- [x] 列出识别出的记号

- [x] 使用色彩模式打印匹配后的源程序（需要支持控制字符的终端）

- [x] 输出统计信息

- [x] 错误报告、使用“恐慌模式”解决错误

### how to build

- 通过make编译

依赖环境：gcc、make

直接执行:

```

make

```

生成文件位置：`./build/linux/x86_64/release/lexical-analyzer`

- 通过xmake编译

依赖环境：gcc、xmake

执行：

```

xmake

```

生成文件位置：`./build/linux/x86_64/release/lexical-analyzer`

##### 测试样例

我们在`test`目录下准备了7个测试样例

### usage

```

Usage: lexical-analyzer [-l] [-c] [-c] [-h] [FILE]

-l, --lexemes   print all lexemes matched.

-c, --color     print input strings in color mode.

-s, --statistics        print statistics message.

-h, --help      print this help message.

FILE            source code file to analysis. stdin will be used to read if FILE was not specified.

```

##### example

从标准输入读取内容

```

./lexical-analyzer

```

从源文件`src.c`读取内容，检测是否存在错误

```

./lexical-analyzer src.c

```

从源文件`src.c`读取内容，依次列出所有记号

```

./lexical-analyzer -l src.c

```

从源文件`src.c`读取内容，输出统计信息

```

./lexical-analyzer -s src.c

```

从源文件`src.c`读取内容，以色彩模式打印匹配结果

```

./lexical-analyzer -c src.c

```