0.4.5 • Public • Published


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A powerfull docblock parser for comment blocks. DocBlock isn't tethered to any language. It simply parses docblocks and returns the result as a JSON object.

// banana.js

 * Banana constructor
 * Banana example object
 * @constructor
var Banana = function() {


 * DocBlock comment
 * @method peelIt
 * @chainable
 * @param {string} startPoint Sets the peeling start point.
 * @param {function} [callback] Callback function
 * @returns {object} Returns this value
Banana.prototype.peelIt = function(startPoint, callback) {
    return this;

Let's parse the banana object.

var fs = require('fs');
var DocBlock = require('docblock');

var source = fs.readFileSync('./banana.js');
var docBlock = new DocBlock();
var result = docBlock.parse(source, 'js');

The result looks like:

        "title": "Banana constructor",
        "description": "Creates a banana instance",
        "tags": {
            "isPublic": false,
            "isProtected": false,
            "isPrivate": false,
            "isDeprecated": false,
            "ignore": false,
            "constructor": "Banana"
        "code": "var Banana = function() {\n    \n}",
        "raw": "/**\n * Banana constructor\n *\n * Creates a banana instance\n *\n * @constructor\n */",
        "pos": 80
        "title": "Peels a banana",
        "description": "This method peels a banana and calls a callback",
        "tags": {
            "isPublic": false,
            "isProtected": false,
            "isPrivate": false,
            "isDeprecated": false,
            "ignore": false,
            "method": "peelIt",
            "chainable": true,
            "params": [
                    "type": "string",
                    "name": "startPoint",
                    "description": "Sets the peeling start point."
                    "type": "function",
                    "name": "[callback]",
                    "description": "Callback function"
            "returns": {
                "type": "object",
                "description": "Returns this value"
        "code": "Banana.prototype.peelIt = function(startPoint, callback) {\n    return this;\n}",
        "raw": "/**\n * Peels a banana\n *\n * This method peels a banana and calls a callback\n * \n * @method peelIt\n * @chainable\n * @param {string} startPoint Sets the peeling start point.\n * @param {function} [callback] Callback function\n * @returns {object} Returns this value\n */",
        "pos": 380

Parse markdown

Docblock parse markdown per default. Markdown parsing can be disabled by setting the skipMarkdown option

var docblock = new DocBlock({
    skipMarkdown: true


DockBlock parse all comment blocks per default. The common rules defined in lib/rules/all.js.It comes with 2 predefined programming languages. If you look into lib/rules/ there are predefined rules for Javascript and Styles like CSS/LESS/SASS. These rules are extended rules, they only get load if the second type argument is set in parse().

const dockBlock = new DocBlock()
dockBlock.parse(source, 'js')

This would enable the extended Javascript parsing. The difference is, you get a better result for a language specific parsing. A class tag in css is different then in Javascript. Feel free to add more languages by creating more rules files and send me a PR.


npm i docblock

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  • andifeind
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