common-comment-parser

A universal comment parser (supports more than 30 languages)

Usage

npm install common-comment-parser

import parser from 'common-comment-parser';
 
const context = `// line1
 
const cc = 111;
/*
block1
*/
console.log(222);
 
console.log(11); /* block2 */ const c = 111; /* block3 */ console.log(111); // line2
 
 
const aaa = 111; // line3
 
const ddd = `//ddd//ddd//dddd`;
const eee = '//eee//eee//eee';
const fff = "//ddd//ddd//dddd";
 
const dd = `\`ddddd//dddd`;
const ee = '\'ddddd//dddd';
const ff = "\"ddddd//dddd";
`
 
const ext = 'js';
 
console.log(parser(context, ext));
// [
    {
        "type": "CommentLine",
        "value": " line1",
        "loc": {
            "start": {
                "line": 1,
                "column": 3
            },
            "end": {
                "line": 1,
                "column": 9
            }
        }
    },
    {
        "type": "CommentBlock",
        "value": "\nblock1\n",
        "loc": {
            "start": {
                "line": 4,
                "column": 2
            },
            "end": {
                "line": 6,
                "column": 1
            }
        }
    },
    {
        "type": "CommentBlock",
        "value": " block2 ",
        "loc": {
            "start": {
                "line": 9,
                "column": 19
            },
            "end": {
                "line": 9,
                "column": 27
            }
        }
    },
    {
        "type": "CommentBlock",
        "value": " block3 ",
        "loc": {
            "start": {
                "line": 9,
                "column": 47
            },
            "end": {
                "line": 9,
                "column": 55
            }
        }
    },
    {
        "type": "CommentLine",
        "value": " line2",
        "loc": {
            "start": {
                "line": 9,
                "column": 78
            },
            "end": {
                "line": 9,
                "column": 84
            }
        }
    },
    {
        "type": "CommentLine",
        "value": " line3",
        "loc": {
            "start": {
                "line": 12,
                "column": 19
            },
            "end": {
                "line": 12,
                "column": 25
            }
        }
    }
]

parser(context, ext)

• context: What needs to be parsed

• ext: File extension

AST

commentsAST {
  type: string;
  value: string;
  loc: {
    start: {
      line: number,
      column: number
    },
    end: {
      line: number,
      column: number
    }
  }
}

License

MIT

Copyright (c) 2019 蓝色的秋风