mirror of
https://github.com/twbs/bootstrap.git
synced 2024-12-13 01:08:58 +01:00
620 lines
16 KiB
JavaScript
620 lines
16 KiB
JavaScript
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/*
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* Copyright 2011 Twitter, Inc.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// A wrapper for compatibility with Mustache.js, quirks and all
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var Hogan = {};
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(function (Hogan) {
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Hogan.Template = function constructor(renderFunc, text, compiler) {
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if (renderFunc) {
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this.r = renderFunc;
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}
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this.c = compiler;
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this.text = text || '';
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}
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Hogan.Template.prototype = {
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// render: replaced by generated code.
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r: function (context, partials, indent) { return ''; },
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// variable escaping
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v: hoganEscape,
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render: function render(context, partials, indent) {
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return this.ri([context], partials || {}, indent);
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},
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// render internal -- a hook for overrides that catches partials too
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ri: function (context, partials, indent) {
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return this.r(context, partials, indent);
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},
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// tries to find a partial in the curent scope and render it
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rp: function(name, context, partials, indent) {
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var partial = partials[name];
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if (!partial) {
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return '';
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}
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if (this.c && typeof partial == 'string') {
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partial = this.c.compile(partial);
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}
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return partial.ri(context, partials, indent);
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},
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// render a section
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rs: function(context, partials, section) {
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var buf = '',
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tail = context[context.length - 1];
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if (!isArray(tail)) {
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return buf = section(context, partials);
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}
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for (var i = 0; i < tail.length; i++) {
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context.push(tail[i]);
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buf += section(context, partials);
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context.pop();
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}
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return buf;
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},
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// maybe start a section
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s: function(val, ctx, partials, inverted, start, end, tags) {
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var pass;
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if (isArray(val) && val.length === 0) {
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return false;
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}
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if (typeof val == 'function') {
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val = this.ls(val, ctx, partials, inverted, start, end, tags);
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}
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pass = (val === '') || !!val;
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if (!inverted && pass && ctx) {
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ctx.push((typeof val == 'object') ? val : ctx[ctx.length - 1]);
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}
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return pass;
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},
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// find values with dotted names
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d: function(key, ctx, partials, returnFound) {
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var names = key.split('.'),
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val = this.f(names[0], ctx, partials, returnFound),
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cx = null;
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if (key === '.' && isArray(ctx[ctx.length - 2])) {
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return ctx[ctx.length - 1];
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}
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for (var i = 1; i < names.length; i++) {
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if (val && typeof val == 'object' && names[i] in val) {
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cx = val;
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val = val[names[i]];
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} else {
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val = '';
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}
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}
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if (returnFound && !val) {
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return false;
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}
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if (!returnFound && typeof val == 'function') {
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ctx.push(cx);
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val = this.lv(val, ctx, partials);
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ctx.pop();
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}
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return val;
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},
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// find values with normal names
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f: function(key, ctx, partials, returnFound) {
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var val = false,
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v = null,
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found = false;
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for (var i = ctx.length - 1; i >= 0; i--) {
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v = ctx[i];
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if (v && typeof v == 'object' && key in v) {
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val = v[key];
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found = true;
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break;
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}
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}
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if (!found) {
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return (returnFound) ? false : "";
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}
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if (!returnFound && typeof val == 'function') {
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val = this.lv(val, ctx, partials);
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}
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return val;
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},
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// higher order templates
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ho: function(val, cx, partials, text, tags) {
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var compiler = this.c;
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var t = val.call(cx, text, function(t) {
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return compiler.compile(t, {delimiters: tags}).render(cx, partials);
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});
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var s = compiler.compile(t.toString(), {delimiters: tags}).render(cx, partials);
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this.b = s;
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return false;
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},
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// higher order template result buffer
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b: '',
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// lambda replace section
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ls: function(val, ctx, partials, inverted, start, end, tags) {
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var cx = ctx[ctx.length - 1],
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t = null;
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if (!inverted && this.c && val.length > 0) {
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return this.ho(val, cx, partials, this.text.substring(start, end), tags);
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}
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t = val.call(cx);
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if (typeof t == 'function') {
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if (inverted) {
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return true;
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} else if (this.c) {
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return this.ho(t, cx, partials, this.text.substring(start, end), tags);
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}
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}
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return t;
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},
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// lambda replace variable
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lv: function(val, ctx, partials) {
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var cx = ctx[ctx.length - 1];
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var result = val.call(cx);
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if (typeof result == 'function') {
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result = result.call(cx);
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}
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result = result.toString();
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if (this.c && ~result.indexOf("{{")) {
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return this.c.compile(result).render(cx, partials);
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}
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return result;
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}
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};
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var rAmp = /&/g,
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rLt = /</g,
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rGt = />/g,
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rApos =/\'/g,
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rQuot = /\"/g,
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hChars =/[&<>\"\']/;
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function hoganEscape(str) {
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str = String((str === null || str === undefined) ? '' : str);
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return hChars.test(str) ?
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str
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.replace(rAmp,'&')
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.replace(rLt,'<')
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.replace(rGt,'>')
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.replace(rApos,''')
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.replace(rQuot, '"') :
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str;
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}
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var isArray = Array.isArray || function(a) {
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return Object.prototype.toString.call(a) === '[object Array]';
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};
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})(typeof exports !== 'undefined' ? exports : Hogan);
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(function (Hogan) {
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// Setup regex assignments
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// remove whitespace according to Mustache spec
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var rIsWhitespace = /\S/,
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rQuot = /\"/g,
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rNewline = /\n/g,
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rCr = /\r/g,
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rSlash = /\\/g,
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tagTypes = {
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'#': 1, '^': 2, '/': 3, '!': 4, '>': 5,
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'<': 6, '=': 7, '_v': 8, '{': 9, '&': 10
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};
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Hogan.scan = function scan(text, delimiters) {
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var len = text.length,
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IN_TEXT = 0,
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IN_TAG_TYPE = 1,
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IN_TAG = 2,
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state = IN_TEXT,
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tagType = null,
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tag = null,
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buf = '',
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tokens = [],
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seenTag = false,
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i = 0,
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lineStart = 0,
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otag = '{{',
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ctag = '}}';
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function addBuf() {
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if (buf.length > 0) {
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tokens.push(new String(buf));
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buf = '';
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}
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}
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function lineIsWhitespace() {
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var isAllWhitespace = true;
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for (var j = lineStart; j < tokens.length; j++) {
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isAllWhitespace =
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(tokens[j].tag && tagTypes[tokens[j].tag] < tagTypes['_v']) ||
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(!tokens[j].tag && tokens[j].match(rIsWhitespace) === null);
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if (!isAllWhitespace) {
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return false;
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}
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}
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return isAllWhitespace;
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}
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function filterLine(haveSeenTag, noNewLine) {
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addBuf();
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if (haveSeenTag && lineIsWhitespace()) {
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for (var j = lineStart, next; j < tokens.length; j++) {
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if (!tokens[j].tag) {
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if ((next = tokens[j+1]) && next.tag == '>') {
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// set indent to token value
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next.indent = tokens[j].toString()
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}
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tokens.splice(j, 1);
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}
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}
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} else if (!noNewLine) {
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tokens.push({tag:'\n'});
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}
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seenTag = false;
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lineStart = tokens.length;
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}
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function changeDelimiters(text, index) {
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var close = '=' + ctag,
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closeIndex = text.indexOf(close, index),
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delimiters = trim(
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text.substring(text.indexOf('=', index) + 1, closeIndex)
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).split(' ');
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otag = delimiters[0];
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ctag = delimiters[1];
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return closeIndex + close.length - 1;
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}
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if (delimiters) {
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delimiters = delimiters.split(' ');
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otag = delimiters[0];
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ctag = delimiters[1];
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}
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for (i = 0; i < len; i++) {
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if (state == IN_TEXT) {
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if (tagChange(otag, text, i)) {
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--i;
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addBuf();
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state = IN_TAG_TYPE;
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} else {
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if (text.charAt(i) == '\n') {
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filterLine(seenTag);
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} else {
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buf += text.charAt(i);
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}
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}
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} else if (state == IN_TAG_TYPE) {
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i += otag.length - 1;
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tag = tagTypes[text.charAt(i + 1)];
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tagType = tag ? text.charAt(i + 1) : '_v';
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if (tagType == '=') {
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i = changeDelimiters(text, i);
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state = IN_TEXT;
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} else {
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if (tag) {
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i++;
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}
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state = IN_TAG;
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}
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seenTag = i;
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} else {
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if (tagChange(ctag, text, i)) {
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tokens.push({tag: tagType, n: trim(buf), otag: otag, ctag: ctag,
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i: (tagType == '/') ? seenTag - ctag.length : i + otag.length});
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buf = '';
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i += ctag.length - 1;
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state = IN_TEXT;
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if (tagType == '{') {
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if (ctag == '}}') {
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i++;
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} else {
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cleanTripleStache(tokens[tokens.length - 1]);
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}
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}
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} else {
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buf += text.charAt(i);
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}
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}
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}
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filterLine(seenTag, true);
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return tokens;
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}
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function cleanTripleStache(token) {
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if (token.n.substr(token.n.length - 1) === '}') {
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token.n = token.n.substring(0, token.n.length - 1);
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}
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}
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function trim(s) {
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if (s.trim) {
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return s.trim();
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}
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return s.replace(/^\s*|\s*$/g, '');
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}
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function tagChange(tag, text, index) {
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if (text.charAt(index) != tag.charAt(0)) {
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return false;
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}
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for (var i = 1, l = tag.length; i < l; i++) {
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if (text.charAt(index + i) != tag.charAt(i)) {
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return false;
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}
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}
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return true;
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}
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function buildTree(tokens, kind, stack, customTags) {
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var instructions = [],
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opener = null,
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token = null;
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while (tokens.length > 0) {
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token = tokens.shift();
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if (token.tag == '#' || token.tag == '^' || isOpener(token, customTags)) {
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stack.push(token);
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token.nodes = buildTree(tokens, token.tag, stack, customTags);
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instructions.push(token);
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} else if (token.tag == '/') {
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if (stack.length === 0) {
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throw new Error('Closing tag without opener: /' + token.n);
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}
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opener = stack.pop();
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if (token.n != opener.n && !isCloser(token.n, opener.n, customTags)) {
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throw new Error('Nesting error: ' + opener.n + ' vs. ' + token.n);
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}
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opener.end = token.i;
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return instructions;
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} else {
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instructions.push(token);
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}
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}
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if (stack.length > 0) {
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throw new Error('missing closing tag: ' + stack.pop().n);
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}
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return instructions;
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}
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function isOpener(token, tags) {
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for (var i = 0, l = tags.length; i < l; i++) {
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if (tags[i].o == token.n) {
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token.tag = '#';
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return true;
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}
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}
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}
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function isCloser(close, open, tags) {
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for (var i = 0, l = tags.length; i < l; i++) {
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if (tags[i].c == close && tags[i].o == open) {
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return true;
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}
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}
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}
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function writeCode(tree) {
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return 'i = i || "";var b = i + "";var _ = this;' + walk(tree) + 'return b;';
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}
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Hogan.generate = function (code, text, options) {
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if (options.asString) {
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return 'function(c,p,i){' + code + ';}';
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}
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return new Hogan.Template(new Function('c', 'p', 'i', code), text, Hogan);
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}
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function esc(s) {
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return s.replace(rSlash, '\\\\')
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.replace(rQuot, '\\\"')
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||
|
.replace(rNewline, '\\n')
|
||
|
.replace(rCr, '\\r');
|
||
|
}
|
||
|
|
||
|
function chooseMethod(s) {
|
||
|
return (~s.indexOf('.')) ? 'd' : 'f';
|
||
|
}
|
||
|
|
||
|
function walk(tree) {
|
||
|
var code = '';
|
||
|
for (var i = 0, l = tree.length; i < l; i++) {
|
||
|
var tag = tree[i].tag;
|
||
|
if (tag == '#') {
|
||
|
code += section(tree[i].nodes, tree[i].n, chooseMethod(tree[i].n),
|
||
|
tree[i].i, tree[i].end, tree[i].otag + " " + tree[i].ctag);
|
||
|
} else if (tag == '^') {
|
||
|
code += invertedSection(tree[i].nodes, tree[i].n,
|
||
|
chooseMethod(tree[i].n));
|
||
|
} else if (tag == '<' || tag == '>') {
|
||
|
code += partial(tree[i]);
|
||
|
} else if (tag == '{' || tag == '&') {
|
||
|
code += tripleStache(tree[i].n, chooseMethod(tree[i].n));
|
||
|
} else if (tag == '\n') {
|
||
|
code += text('"\\n"' + (tree.length-1 == i ? '' : ' + i'));
|
||
|
} else if (tag == '_v') {
|
||
|
code += variable(tree[i].n, chooseMethod(tree[i].n));
|
||
|
} else if (tag === undefined) {
|
||
|
code += text('"' + esc(tree[i]) + '"');
|
||
|
}
|
||
|
}
|
||
|
return code;
|
||
|
}
|
||
|
|
||
|
function section(nodes, id, method, start, end, tags) {
|
||
|
return 'if(_.s(_.' + method + '("' + esc(id) + '",c,p,1),' +
|
||
|
'c,p,0,' + start + ',' + end + ', "' + tags + '")){' +
|
||
|
'b += _.rs(c,p,' +
|
||
|
'function(c,p){ var b = "";' +
|
||
|
walk(nodes) +
|
||
|
'return b;});c.pop();}' +
|
||
|
'else{b += _.b; _.b = ""};';
|
||
|
}
|
||
|
|
||
|
function invertedSection(nodes, id, method) {
|
||
|
return 'if (!_.s(_.' + method + '("' + esc(id) + '",c,p,1),c,p,1,0,0,"")){' +
|
||
|
walk(nodes) +
|
||
|
'};';
|
||
|
}
|
||
|
|
||
|
function partial(tok) {
|
||
|
return 'b += _.rp("' + esc(tok.n) + '",c,p,"' + (tok.indent || '') + '");';
|
||
|
}
|
||
|
|
||
|
function tripleStache(id, method) {
|
||
|
return 'b += (_.' + method + '("' + esc(id) + '",c,p,0));';
|
||
|
}
|
||
|
|
||
|
function variable(id, method) {
|
||
|
return 'b += (_.v(_.' + method + '("' + esc(id) + '",c,p,0)));';
|
||
|
}
|
||
|
|
||
|
function text(id) {
|
||
|
return 'b += ' + id + ';';
|
||
|
}
|
||
|
|
||
|
Hogan.parse = function(tokens, options) {
|
||
|
options = options || {};
|
||
|
return buildTree(tokens, '', [], options.sectionTags || []);
|
||
|
},
|
||
|
|
||
|
Hogan.cache = {};
|
||
|
|
||
|
Hogan.compile = function(text, options) {
|
||
|
// options
|
||
|
//
|
||
|
// asString: false (default)
|
||
|
//
|
||
|
// sectionTags: [{o: '_foo', c: 'foo'}]
|
||
|
// An array of object with o and c fields that indicate names for custom
|
||
|
// section tags. The example above allows parsing of {{_foo}}{{/foo}}.
|
||
|
//
|
||
|
// delimiters: A string that overrides the default delimiters.
|
||
|
// Example: "<% %>"
|
||
|
//
|
||
|
options = options || {};
|
||
|
|
||
|
var key = text + '||' + !!options.asString;
|
||
|
|
||
|
var t = this.cache[key];
|
||
|
|
||
|
if (t) {
|
||
|
return t;
|
||
|
}
|
||
|
|
||
|
t = this.generate(writeCode(this.parse(this.scan(text, options.delimiters), options)), text, options);
|
||
|
return this.cache[key] = t;
|
||
|
};
|
||
|
})(typeof exports !== 'undefined' ? exports : Hogan);
|
||
|
|
||
|
|
||
|
var Mustache = (function (Hogan) {
|
||
|
|
||
|
// Mustache.js has non-spec partial context behavior
|
||
|
function mustachePartial(name, context, partials, indent) {
|
||
|
var partialScope = this.f(name, context, partials, 0);
|
||
|
var cx = context;
|
||
|
if (partialScope) {
|
||
|
cx = cx.concat(partialScope);
|
||
|
}
|
||
|
|
||
|
return Hogan.Template.prototype.rp.call(this, name, cx, partials, indent);
|
||
|
}
|
||
|
|
||
|
var HoganTemplateWrapper = function(renderFunc, text, compiler){
|
||
|
this.rp = mustachePartial;
|
||
|
Hogan.Template.call(this, renderFunc, text, compiler);
|
||
|
};
|
||
|
HoganTemplateWrapper.prototype = Hogan.Template.prototype;
|
||
|
|
||
|
// Add a wrapper for Hogan's generate method. Mustache and Hogan keep
|
||
|
// separate caches, and Mustache returns wrapped templates.
|
||
|
var wrapper;
|
||
|
var HoganWrapper = function(){
|
||
|
this.cache = {};
|
||
|
this.generate = function(code, text, options) {
|
||
|
return new HoganTemplateWrapper(new Function('c', 'p', 'i', code), text, wrapper);
|
||
|
}
|
||
|
};
|
||
|
HoganWrapper.prototype = Hogan;
|
||
|
wrapper = new HoganWrapper();
|
||
|
|
||
|
return {
|
||
|
to_html: function(text, data, partials, sendFun) {
|
||
|
var template = wrapper.compile(text);
|
||
|
var result = template.render(data, partials);
|
||
|
if (!sendFun) {
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
sendFun(result);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
})(Hogan);
|