lion/packages/providence-analytics/src/program/utils/jsdoc-comment-parser.js

125 lines
4.4 KiB
JavaScript

/* eslint-disable */
/**
* The MIT License (MIT)
*
* Copyright (c) 2015 Ryo Maruyama
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
// From: https://github.com/esdoc/esdoc/blob/master/src/Parser/CommentParser.js
/**
* Doc Comment Parser class.
*
* @example
* for (let comment of node.leadingComments) {
* let tags = CommentParser.parse(comment);
* console.log(tags);
* }
*/
class JsdocCommentParser {
/**
* parse comment to tags.
* @param {ASTNode} commentNode - comment node.
* @param {string} commentNode.value - comment body.
* @param {string} commentNode.type - CommentBlock or CommentLine.
* @returns {Tag[]} parsed comment.
*/
static parse(commentNode) {
if (!this.isESDoc(commentNode)) return [];
let comment = commentNode.value;
// TODO: refactor
comment = comment.replace(/\r\n/gm, '\n'); // for windows
comment = comment.replace(/^[\t ]*/gm, ''); // remove line head space
comment = comment.replace(/^\*[\t ]?/, ''); // remove first '*'
comment = comment.replace(/[\t ]$/, ''); // remove last space
comment = comment.replace(/^\*[\t ]?/gm, ''); // remove line head '*'
if (comment.charAt(0) !== '@') comment = `@desc ${comment}`; // auto insert @desc
comment = comment.replace(/[\t ]*$/, ''); // remove tail space.
comment = comment.replace(/```[\s\S]*?```/g, match => match.replace(/@/g, '\\ESCAPED_AT\\')); // escape code in descriptions
comment = comment.replace(/^[\t ]*(@\w+)$/gm, '$1 \\TRUE'); // auto insert tag text to non-text tag (e.g. @interface)
comment = comment.replace(/^[\t ]*(@\w+)[\t ](.*)/gm, '\\Z$1\\Z$2'); // insert separator (\\Z@tag\\Ztext)
const lines = comment.split('\\Z');
let tagName = '';
let tagValue = '';
const tags = [];
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
if (line.charAt(0) === '@') {
tagName = line;
const nextLine = lines[i + 1];
if (nextLine.charAt(0) === '@') {
tagValue = '';
} else {
tagValue = nextLine;
i++;
}
tagValue = tagValue
.replace('\\TRUE', '')
.replace(/\\ESCAPED_AT\\/g, '@')
.replace(/^\n/, '')
.replace(/\n*$/, '');
tags.push({ tagName, tagValue });
}
}
return tags;
}
/**
* parse node to tags.
* @param {ASTNode} node - node.
* @returns {{tags: Tag[], commentNode: CommentNode}} parsed comment.
*/
static parseFromNode(node) {
if (!node.leadingComments) node.leadingComments = [{ type: 'CommentBlock', value: '' }];
const commentNode = node.leadingComments[node.leadingComments.length - 1];
const tags = this.parse(commentNode);
return { tags, commentNode };
}
/**
* judge doc comment or not.
* @param {ASTNode} commentNode - comment node.
* @returns {boolean} if true, this comment node is doc comment.
*/
static isESDoc(commentNode) {
if (commentNode.type !== 'CommentBlock') return false;
return commentNode.value.charAt(0) === '*';
}
/**
* build comment from tags
* @param {Tag[]} tags
* @returns {string} block comment value.
*/
static buildComment(tags) {
return tags.reduce((comment, tag) => {
const line = tag.tagValue.replace(/\n/g, '\n * ');
return `${comment} * ${tag.tagName} \n * ${line} \n`;
}, '*\n');
}
}
module.exports = JsdocCommentParser;