543 lines
16 KiB
JavaScript
543 lines
16 KiB
JavaScript
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/*!
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ICanHaz.js version 0.10 -- by @HenrikJoreteg
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More info at: http://icanhazjs.com
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*/
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(function () {
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/*
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mustache.js — Logic-less templates in JavaScript
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See http://mustache.github.com/ for more info.
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*/
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var Mustache = function () {
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var _toString = Object.prototype.toString;
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Array.isArray = Array.isArray || function (obj) {
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return _toString.call(obj) == "[object Array]";
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}
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var _trim = String.prototype.trim, trim;
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if (_trim) {
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trim = function (text) {
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return text == null ? "" : _trim.call(text);
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}
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} else {
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var trimLeft, trimRight;
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// IE doesn't match non-breaking spaces with \s.
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if ((/\S/).test("\xA0")) {
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trimLeft = /^[\s\xA0]+/;
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trimRight = /[\s\xA0]+$/;
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} else {
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trimLeft = /^\s+/;
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trimRight = /\s+$/;
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}
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trim = function (text) {
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return text == null ? "" :
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text.toString().replace(trimLeft, "").replace(trimRight, "");
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}
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}
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var escapeMap = {
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"&": "&",
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"<": "<",
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">": ">",
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'"': '"',
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"'": '''
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};
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function escapeHTML(string) {
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return String(string).replace(/&(?!\w+;)|[<>"']/g, function (s) {
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return escapeMap[s] || s;
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});
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}
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var regexCache = {};
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var Renderer = function () {};
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Renderer.prototype = {
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otag: "{{",
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ctag: "}}",
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pragmas: {},
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buffer: [],
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pragmas_implemented: {
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"IMPLICIT-ITERATOR": true
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},
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context: {},
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render: function (template, context, partials, in_recursion) {
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// reset buffer & set context
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if (!in_recursion) {
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this.context = context;
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this.buffer = []; // TODO: make this non-lazy
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}
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// fail fast
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if (!this.includes("", template)) {
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if (in_recursion) {
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return template;
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} else {
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this.send(template);
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return;
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}
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}
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// get the pragmas together
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template = this.render_pragmas(template);
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// render the template
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var html = this.render_section(template, context, partials);
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// render_section did not find any sections, we still need to render the tags
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if (html === false) {
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html = this.render_tags(template, context, partials, in_recursion);
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}
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if (in_recursion) {
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return html;
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} else {
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this.sendLines(html);
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}
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},
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/*
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Sends parsed lines
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*/
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send: function (line) {
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if (line !== "") {
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this.buffer.push(line);
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}
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},
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sendLines: function (text) {
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if (text) {
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var lines = text.split("\n");
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for (var i = 0; i < lines.length; i++) {
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this.send(lines[i]);
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}
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}
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},
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/*
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Looks for %PRAGMAS
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*/
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render_pragmas: function (template) {
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// no pragmas
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if (!this.includes("%", template)) {
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return template;
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}
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var that = this;
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var regex = this.getCachedRegex("render_pragmas", function (otag, ctag) {
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return new RegExp(otag + "%([\\w-]+) ?([\\w]+=[\\w]+)?" + ctag, "g");
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});
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return template.replace(regex, function (match, pragma, options) {
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if (!that.pragmas_implemented[pragma]) {
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throw({message:
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"This implementation of mustache doesn't understand the '" +
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pragma + "' pragma"});
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}
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that.pragmas[pragma] = {};
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if (options) {
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var opts = options.split("=");
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that.pragmas[pragma][opts[0]] = opts[1];
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}
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return "";
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// ignore unknown pragmas silently
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});
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},
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/*
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Tries to find a partial in the curent scope and render it
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*/
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render_partial: function (name, context, partials) {
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name = trim(name);
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if (!partials || partials[name] === undefined) {
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throw({message: "unknown_partial '" + name + "'"});
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}
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if (!context || typeof context[name] != "object") {
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return this.render(partials[name], context, partials, true);
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}
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return this.render(partials[name], context[name], partials, true);
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},
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/*
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Renders inverted (^) and normal (#) sections
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*/
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render_section: function (template, context, partials) {
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if (!this.includes("#", template) && !this.includes("^", template)) {
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// did not render anything, there were no sections
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return false;
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}
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var that = this;
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var regex = this.getCachedRegex("render_section", function (otag, ctag) {
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// This regex matches _the first_ section ({{#foo}}{{/foo}}), and captures the remainder
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return new RegExp(
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"^([\\s\\S]*?)" + // all the crap at the beginning that is not {{*}} ($1)
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otag + // {{
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"(\\^|\\#)\\s*(.+)\\s*" + // #foo (# == $2, foo == $3)
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ctag + // }}
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"\n*([\\s\\S]*?)" + // between the tag ($2). leading newlines are dropped
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otag + // {{
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"\\/\\s*\\3\\s*" + // /foo (backreference to the opening tag).
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ctag + // }}
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"\\s*([\\s\\S]*)$", // everything else in the string ($4). leading whitespace is dropped.
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"g");
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});
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// for each {{#foo}}{{/foo}} section do...
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return template.replace(regex, function (match, before, type, name, content, after) {
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// before contains only tags, no sections
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var renderedBefore = before ? that.render_tags(before, context, partials, true) : "",
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// after may contain both sections and tags, so use full rendering function
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renderedAfter = after ? that.render(after, context, partials, true) : "",
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// will be computed below
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renderedContent,
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value = that.find(name, context);
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if (type === "^") { // inverted section
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if (!value || Array.isArray(value) && value.length === 0) {
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// false or empty list, render it
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renderedContent = that.render(content, context, partials, true);
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} else {
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renderedContent = "";
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}
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} else if (type === "#") { // normal section
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if (Array.isArray(value)) { // Enumerable, Let's loop!
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renderedContent = that.map(value, function (row) {
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return that.render(content, that.create_context(row), partials, true);
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}).join("");
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} else if (that.is_object(value)) { // Object, Use it as subcontext!
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renderedContent = that.render(content, that.create_context(value),
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partials, true);
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} else if (typeof value == "function") {
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// higher order section
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renderedContent = value.call(context, content, function (text) {
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return that.render(text, context, partials, true);
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});
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} else if (value) { // boolean section
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renderedContent = that.render(content, context, partials, true);
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} else {
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renderedContent = "";
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}
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}
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return renderedBefore + renderedContent + renderedAfter;
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});
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},
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/*
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Replace {{foo}} and friends with values from our view
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*/
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render_tags: function (template, context, partials, in_recursion) {
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// tit for tat
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var that = this;
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var new_regex = function () {
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return that.getCachedRegex("render_tags", function (otag, ctag) {
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return new RegExp(otag + "(=|!|>|&|\\{|%)?([^#\\^]+?)\\1?" + ctag + "+", "g");
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});
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};
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var regex = new_regex();
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var tag_replace_callback = function (match, operator, name) {
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switch(operator) {
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case "!": // ignore comments
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return "";
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case "=": // set new delimiters, rebuild the replace regexp
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that.set_delimiters(name);
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regex = new_regex();
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return "";
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case ">": // render partial
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return that.render_partial(name, context, partials);
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case "{": // the triple mustache is unescaped
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case "&": // & operator is an alternative unescape method
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return that.find(name, context);
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default: // escape the value
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return escapeHTML(that.find(name, context));
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}
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};
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var lines = template.split("\n");
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for(var i = 0; i < lines.length; i++) {
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lines[i] = lines[i].replace(regex, tag_replace_callback, this);
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if (!in_recursion) {
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this.send(lines[i]);
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}
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}
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if (in_recursion) {
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return lines.join("\n");
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}
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},
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set_delimiters: function (delimiters) {
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var dels = delimiters.split(" ");
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this.otag = this.escape_regex(dels[0]);
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this.ctag = this.escape_regex(dels[1]);
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},
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escape_regex: function (text) {
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// thank you Simon Willison
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if (!arguments.callee.sRE) {
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var specials = [
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'/', '.', '*', '+', '?', '|',
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'(', ')', '[', ']', '{', '}', '\\'
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];
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arguments.callee.sRE = new RegExp(
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'(\\' + specials.join('|\\') + ')', 'g'
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);
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}
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return text.replace(arguments.callee.sRE, '\\$1');
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},
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/*
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find `name` in current `context`. That is find me a value
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from the view object
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*/
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find: function (name, context) {
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name = trim(name);
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// Checks whether a value is thruthy or false or 0
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function is_kinda_truthy(bool) {
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return bool === false || bool === 0 || bool;
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}
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var value;
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// check for dot notation eg. foo.bar
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if (name.match(/([a-z_]+)\./ig)) {
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var childValue = this.walk_context(name, context);
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if (is_kinda_truthy(childValue)) {
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value = childValue;
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}
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} else {
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if (is_kinda_truthy(context[name])) {
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value = context[name];
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} else if (is_kinda_truthy(this.context[name])) {
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value = this.context[name];
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}
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}
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if (typeof value == "function") {
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return value.apply(context);
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}
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if (value !== undefined) {
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return value;
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}
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// silently ignore unkown variables
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return "";
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},
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walk_context: function (name, context) {
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var path = name.split('.');
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// if the var doesn't exist in current context, check the top level context
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var value_context = (context[path[0]] != undefined) ? context : this.context;
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var value = value_context[path.shift()];
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while (value != undefined && path.length > 0) {
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value_context = value;
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value = value[path.shift()];
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}
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// if the value is a function, call it, binding the correct context
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if (typeof value == "function") {
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return value.apply(value_context);
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}
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return value;
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},
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// Utility methods
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/* includes tag */
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includes: function (needle, haystack) {
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return haystack.indexOf(this.otag + needle) != -1;
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},
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// by @langalex, support for arrays of strings
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create_context: function (_context) {
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if (this.is_object(_context)) {
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return _context;
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} else {
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var iterator = ".";
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if (this.pragmas["IMPLICIT-ITERATOR"]) {
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iterator = this.pragmas["IMPLICIT-ITERATOR"].iterator;
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}
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var ctx = {};
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ctx[iterator] = _context;
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return ctx;
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}
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},
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is_object: function (a) {
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return a && typeof a == "object";
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},
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/*
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Why, why, why? Because IE. Cry, cry cry.
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*/
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map: function (array, fn) {
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if (typeof array.map == "function") {
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return array.map(fn);
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} else {
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var r = [];
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var l = array.length;
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for(var i = 0; i < l; i++) {
|
||
|
|
r.push(fn(array[i]));
|
||
|
|
}
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
getCachedRegex: function (name, generator) {
|
||
|
|
var byOtag = regexCache[this.otag];
|
||
|
|
if (!byOtag) {
|
||
|
|
byOtag = regexCache[this.otag] = {};
|
||
|
|
}
|
||
|
|
|
||
|
|
var byCtag = byOtag[this.ctag];
|
||
|
|
if (!byCtag) {
|
||
|
|
byCtag = byOtag[this.ctag] = {};
|
||
|
|
}
|
||
|
|
|
||
|
|
var regex = byCtag[name];
|
||
|
|
if (!regex) {
|
||
|
|
regex = byCtag[name] = generator(this.otag, this.ctag);
|
||
|
|
}
|
||
|
|
|
||
|
|
return regex;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return({
|
||
|
|
name: "mustache.js",
|
||
|
|
version: "0.4.0",
|
||
|
|
|
||
|
|
/*
|
||
|
|
Turns a template and view into HTML
|
||
|
|
*/
|
||
|
|
to_html: function (template, view, partials, send_fun) {
|
||
|
|
var renderer = new Renderer();
|
||
|
|
if (send_fun) {
|
||
|
|
renderer.send = send_fun;
|
||
|
|
}
|
||
|
|
renderer.render(template, view || {}, partials);
|
||
|
|
if (!send_fun) {
|
||
|
|
return renderer.buffer.join("\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}();
|
||
|
|
/*!
|
||
|
|
ICanHaz.js -- by @HenrikJoreteg
|
||
|
|
*/
|
||
|
|
/*global */
|
||
|
|
(function () {
|
||
|
|
function trim(stuff) {
|
||
|
|
if (''.trim) return stuff.trim();
|
||
|
|
else return stuff.replace(/^\s+/, '').replace(/\s+$/, '');
|
||
|
|
}
|
||
|
|
var ich = {
|
||
|
|
VERSION: "0.10",
|
||
|
|
templates: {},
|
||
|
|
|
||
|
|
// grab jquery or zepto if it's there
|
||
|
|
$: (typeof window !== 'undefined') ? window.jQuery || window.Zepto || null : null,
|
||
|
|
|
||
|
|
// public function for adding templates
|
||
|
|
// can take a name and template string arguments
|
||
|
|
// or can take an object with name/template pairs
|
||
|
|
// We're enforcing uniqueness to avoid accidental template overwrites.
|
||
|
|
// If you want a different template, it should have a different name.
|
||
|
|
addTemplate: function (name, templateString) {
|
||
|
|
if (typeof name === 'object') {
|
||
|
|
for (var template in name) {
|
||
|
|
this.addTemplate(template, name[template]);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (ich[name]) {
|
||
|
|
console.error("Invalid name: " + name + ".");
|
||
|
|
} else if (ich.templates[name]) {
|
||
|
|
console.error("Template \"" + name + " \" exists");
|
||
|
|
} else {
|
||
|
|
ich.templates[name] = templateString;
|
||
|
|
ich[name] = function (data, raw) {
|
||
|
|
data = data || {};
|
||
|
|
var result = Mustache.to_html(ich.templates[name], data, ich.templates);
|
||
|
|
return (ich.$ && !raw) ? ich.$(result) : result;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// clears all retrieval functions and empties cache
|
||
|
|
clearAll: function () {
|
||
|
|
for (var key in ich.templates) {
|
||
|
|
delete ich[key];
|
||
|
|
}
|
||
|
|
ich.templates = {};
|
||
|
|
},
|
||
|
|
|
||
|
|
// clears/grabs
|
||
|
|
refresh: function () {
|
||
|
|
ich.clearAll();
|
||
|
|
ich.grabTemplates();
|
||
|
|
},
|
||
|
|
|
||
|
|
// grabs templates from the DOM and caches them.
|
||
|
|
// Loop through and add templates.
|
||
|
|
// Whitespace at beginning and end of all templates inside <script> tags will
|
||
|
|
// be trimmed. If you want whitespace around a partial, add it in the parent,
|
||
|
|
// not the partial. Or do it explicitly using <br/> or
|
||
|
|
grabTemplates: function () {
|
||
|
|
var i,
|
||
|
|
scripts = document.getElementsByTagName('script'),
|
||
|
|
script,
|
||
|
|
trash = [];
|
||
|
|
for (i = 0, l = scripts.length; i < l; i++) {
|
||
|
|
script = scripts[i];
|
||
|
|
if (script && script.innerHTML && script.id && (script.type === "text/html" || script.type === "text/x-icanhaz")) {
|
||
|
|
ich.addTemplate(script.id, trim(script.innerHTML));
|
||
|
|
trash.unshift(script);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (i = 0, l = trash.length; i < l; i++) {
|
||
|
|
trash[i].parentNode.removeChild(trash[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Use CommonJS if applicable
|
||
|
|
if (typeof require !== 'undefined') {
|
||
|
|
module.exports = ich;
|
||
|
|
} else {
|
||
|
|
// else attach it to the window
|
||
|
|
window.ich = ich;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof document !== 'undefined') {
|
||
|
|
if (ich.$) {
|
||
|
|
ich.$(function () {
|
||
|
|
ich.grabTemplates();
|
||
|
|
});
|
||
|
|
} else {
|
||
|
|
document.addEventListener('DOMContentLoaded', function () {
|
||
|
|
ich.grabTemplates();
|
||
|
|
}, true);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
})();
|
||
|
|
})();
|