--- /dev/null
+/*!
+ * Bootstrap Grunt task for parsing Less docstrings
+ * http://getbootstrap.com
+ * Copyright 2014 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;
projects / yaffs-website / blobdiff