+++ /dev/null
-/*!
- * Bootstrap Grunt task for parsing Less docstrings
- * http://getbootstrap.com
- * Copyright 2014-2015 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- */
-
-'use strict';
-
-var Markdown = require('markdown-it');
-
-function markdown2html(markdownString) {
- var md = new Markdown();
-
- // the slice removes the <p>...</p> wrapper output by Markdown processor
- return md.render(markdownString.trim()).slice(3, -5);
-}
-
-
-/*
-Mini-language:
- //== This is a normal heading, which starts a section. Sections group variables together.
- //## Optional description for the heading
-
- //=== This is a subheading.
-
- //** Optional description for the following variable. You **can** use Markdown in descriptions to discuss `<html>` stuff.
- @foo: #fff;
-
- //-- This is a heading for a section whose variables shouldn't be customizable
-
- All other lines are ignored completely.
-*/
-
-
-var CUSTOMIZABLE_HEADING = /^[/]{2}={2}(.*)$/;
-var UNCUSTOMIZABLE_HEADING = /^[/]{2}-{2}(.*)$/;
-var SUBSECTION_HEADING = /^[/]{2}={3}(.*)$/;
-var SECTION_DOCSTRING = /^[/]{2}#{2}(.+)$/;
-var VAR_ASSIGNMENT = /^(@[a-zA-Z0-9_-]+):[ ]*([^ ;][^;]*);[ ]*$/;
-var VAR_DOCSTRING = /^[/]{2}[*]{2}(.+)$/;
-
-function Section(heading, customizable) {
- this.heading = heading.trim();
- this.id = this.heading.replace(/\s+/g, '-').toLowerCase();
- this.customizable = customizable;
- this.docstring = null;
- this.subsections = [];
-}
-
-Section.prototype.addSubSection = function (subsection) {
- this.subsections.push(subsection);
-};
-
-function SubSection(heading) {
- this.heading = heading.trim();
- this.id = this.heading.replace(/\s+/g, '-').toLowerCase();
- this.variables = [];
-}
-
-SubSection.prototype.addVar = function (variable) {
- this.variables.push(variable);
-};
-
-function VarDocstring(markdownString) {
- this.html = markdown2html(markdownString);
-}
-
-function SectionDocstring(markdownString) {
- this.html = markdown2html(markdownString);
-}
-
-function Variable(name, defaultValue) {
- this.name = name;
- this.defaultValue = defaultValue;
- this.docstring = null;
-}
-
-function Tokenizer(fileContent) {
- this._lines = fileContent.split('\n');
- this._next = undefined;
-}
-
-Tokenizer.prototype.unshift = function (token) {
- if (this._next !== undefined) {
- throw new Error('Attempted to unshift twice!');
- }
- this._next = token;
-};
-
-Tokenizer.prototype._shift = function () {
- // returning null signals EOF
- // returning undefined means the line was ignored
- if (this._next !== undefined) {
- var result = this._next;
- this._next = undefined;
- return result;
- }
- if (this._lines.length <= 0) {
- return null;
- }
- var line = this._lines.shift();
- var match = null;
- match = SUBSECTION_HEADING.exec(line);
- if (match !== null) {
- return new SubSection(match[1]);
- }
- match = CUSTOMIZABLE_HEADING.exec(line);
- if (match !== null) {
- return new Section(match[1], true);
- }
- match = UNCUSTOMIZABLE_HEADING.exec(line);
- if (match !== null) {
- return new Section(match[1], false);
- }
- match = SECTION_DOCSTRING.exec(line);
- if (match !== null) {
- return new SectionDocstring(match[1]);
- }
- match = VAR_DOCSTRING.exec(line);
- if (match !== null) {
- return new VarDocstring(match[1]);
- }
- var commentStart = line.lastIndexOf('//');
- var varLine = commentStart === -1 ? line : line.slice(0, commentStart);
- match = VAR_ASSIGNMENT.exec(varLine);
- if (match !== null) {
- return new Variable(match[1], match[2]);
- }
- return undefined;
-};
-
-Tokenizer.prototype.shift = function () {
- while (true) {
- var result = this._shift();
- if (result === undefined) {
- continue;
- }
- return result;
- }
-};
-
-function Parser(fileContent) {
- this._tokenizer = new Tokenizer(fileContent);
-}
-
-Parser.prototype.parseFile = function () {
- var sections = [];
- while (true) {
- var section = this.parseSection();
- if (section === null) {
- if (this._tokenizer.shift() !== null) {
- throw new Error('Unexpected unparsed section of file remains!');
- }
- return sections;
- }
- sections.push(section);
- }
-};
-
-Parser.prototype.parseSection = function () {
- var section = this._tokenizer.shift();
- if (section === null) {
- return null;
- }
- if (!(section instanceof Section)) {
- throw new Error('Expected section heading; got: ' + JSON.stringify(section));
- }
- var docstring = this._tokenizer.shift();
- if (docstring instanceof SectionDocstring) {
- section.docstring = docstring;
- } else {
- this._tokenizer.unshift(docstring);
- }
- this.parseSubSections(section);
-
- return section;
-};
-
-Parser.prototype.parseSubSections = function (section) {
- while (true) {
- var subsection = this.parseSubSection();
- if (subsection === null) {
- if (section.subsections.length === 0) {
- // Presume an implicit initial subsection
- subsection = new SubSection('');
- this.parseVars(subsection);
- } else {
- break;
- }
- }
- section.addSubSection(subsection);
- }
-
- if (section.subsections.length === 1 && !section.subsections[0].heading && section.subsections[0].variables.length === 0) {
- // Ignore lone empty implicit subsection
- section.subsections = [];
- }
-};
-
-Parser.prototype.parseSubSection = function () {
- var subsection = this._tokenizer.shift();
- if (subsection instanceof SubSection) {
- this.parseVars(subsection);
- return subsection;
- }
- this._tokenizer.unshift(subsection);
- return null;
-};
-
-Parser.prototype.parseVars = function (subsection) {
- while (true) {
- var variable = this.parseVar();
- if (variable === null) {
- return;
- }
- subsection.addVar(variable);
- }
-};
-
-Parser.prototype.parseVar = function () {
- var docstring = this._tokenizer.shift();
- if (!(docstring instanceof VarDocstring)) {
- this._tokenizer.unshift(docstring);
- docstring = null;
- }
- var variable = this._tokenizer.shift();
- if (variable instanceof Variable) {
- variable.docstring = docstring;
- return variable;
- }
- this._tokenizer.unshift(variable);
- return null;
-};
-
-
-module.exports = Parser;
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