/* Uploaded from https://github.com/WPAFC/afch-rewrite, commit: 8cdec2f84f16311d45b217dbb80607221d500aaf (<git.Head "master">) */
/*
* Copyright 2011 Twitter, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var Hogan = {};
(function (Hogan, useArrayBuffer) {
Hogan.Template = function (renderFunc, text, compiler, options) {
this.r = renderFunc || this.r;
this.c = compiler;
this.options = options;
this.text = text || '';
this.buf = (useArrayBuffer) ? [] : '';
}
Hogan.Template.prototype = {
// render: replaced by generated code.
r: function (context, partials, indent) { return ''; },
// variable escaping
v: hoganEscape,
// triple stache
t: coerceToString,
render: function render(context, partials, indent) {
return this.ri([context], partials || {}, indent);
},
// render internal -- a hook for overrides that catches partials too
ri: function (context, partials, indent) {
return this.r(context, partials, indent);
},
// tries to find a partial in the curent scope and render it
rp: function(name, context, partials, indent) {
var partial = partials[name];
if (!partial) {
return '';
}
if (this.c && typeof partial == 'string') {
partial = this.c.compile(partial, this.options);
}
return partial.ri(context, partials, indent);
},
// render a section
rs: function(context, partials, section) {
var tail = context[context.length - 1];
if (!isArray(tail)) {
section(context, partials, this);
return;
}
for (var i = 0; i < tail.length; i++) {
context.push(tail[i]);
section(context, partials, this);
context.pop();
}
},
// maybe start a section
s: function(val, ctx, partials, inverted, start, end, tags) {
var pass;
if (isArray(val) && val.length === 0) {
return false;
}
if (typeof val == 'function') {
val = this.ls(val, ctx, partials, inverted, start, end, tags);
}
pass = (val === '') || !!val;
if (!inverted && pass && ctx) {
ctx.push((typeof val == 'object') ? val : ctx[ctx.length - 1]);
}
return pass;
},
// find values with dotted names
d: function(key, ctx, partials, returnFound) {
var names = key.split('.'),
val = this.f(names[0], ctx, partials, returnFound),
cx = null;
if (key === '.' && isArray(ctx[ctx.length - 2])) {
return ctx[ctx.length - 1];
}
for (var i = 1; i < names.length; i++) {
if (val && typeof val == 'object' && names[i] in val) {
cx = val;
val = val[names[i]];
} else {
val = '';
}
}
if (returnFound && !val) {
return false;
}
if (!returnFound && typeof val == 'function') {
ctx.push(cx);
val = this.lv(val, ctx, partials);
ctx.pop();
}
return val;
},
// find values with normal names
f: function(key, ctx, partials, returnFound) {
var val = false,
v = null,
found = false;
for (var i = ctx.length - 1; i >= 0; i--) {
v = ctx[i];
if (v && typeof v == 'object' && key in v) {
val = v[key];
found = true;
break;
}
}
if (!found) {
return (returnFound) ? false : "";
}
if (!returnFound && typeof val == 'function') {
val = this.lv(val, ctx, partials);
}
return val;
},
// higher order templates
ho: function(val, cx, partials, text, tags) {
var compiler = this.c;
var options = this.options;
options.delimiters = tags;
var text = val.call(cx, text);
text = (text == null) ? String(text) : text.toString();
this.b(compiler.compile(text, options).render(cx, partials));
return false;
},
// template result buffering
b: (useArrayBuffer) ? function(s) { this.buf.push(s); } :
function(s) { this.buf += s; },
fl: (useArrayBuffer) ? function() { var r = this.buf.join(''); this.buf = []; return r; } :
function() { var r = this.buf; this.buf = ''; return r; },
// lambda replace section
ls: function(val, ctx, partials, inverted, start, end, tags) {
var cx = ctx[ctx.length - 1],
t = null;
if (!inverted && this.c && val.length > 0) {
return this.ho(val, cx, partials, this.text.substring(start, end), tags);
}
t = val.call(cx);
if (typeof t == 'function') {
if (inverted) {
return true;
} else if (this.c) {
return this.ho(t, cx, partials, this.text.substring(start, end), tags);
}
}
return t;
},
// lambda replace variable
lv: function(val, ctx, partials) {
var cx = ctx[ctx.length - 1];
var result = val.call(cx);
if (typeof result == 'function') {
result = coerceToString(result.call(cx));
if (this.c && ~result.indexOf("{\u007B")) {
return this.c.compile(result, this.options).render(cx, partials);
}
}
return coerceToString(result);
}
};
var rAmp = /&/g,
rLt = /</g,
rGt = />/g,
rApos =/\'/g,
rQuot = /\"/g,
hChars =/[&<>\"\']/;
function coerceToString(val) {
return String((val === null || val === undefined) ? '' : val);
}
function hoganEscape(str) {
str = coerceToString(str);
return hChars.test(str) ?
str
.replace(rAmp,'&')
.replace(rLt,'<')
.replace(rGt,'>')
.replace(rApos,''')
.replace(rQuot, '"') :
str;
}
var isArray = Array.isArray || function(a) {
return Object.prototype.toString.call(a) === '[object Array]';
};
})(typeof exports !== 'undefined' ? exports : Hogan);
(function (Hogan) {
// Setup regex assignments
// remove whitespace according to Mustache spec
var rIsWhitespace = /\S/,
rQuot = /\"/g,
rNewline = /\n/g,
rCr = /\r/g,
rSlash = /\\/g,
tagTypes = {
'#': 1, '^': 2, '/': 3, '!': 4, '>': 5,
'<': 6, '=': 7, '_v': 8, '{': 9, '&': 10
};
Hogan.scan = function scan(text, delimiters) {
var len = text.length,
IN_TEXT = 0,
IN_TAG_TYPE = 1,
IN_TAG = 2,
state = IN_TEXT,
tagType = null,
tag = null,
buf = '',
tokens = [],
seenTag = false,
i = 0,
lineStart = 0,
otag = '{{',
ctag = '}}';
function addBuf() {
if (buf.length > 0) {
tokens.push(new String(buf));
buf = '';
}
}
function lineIsWhitespace() {
var isAllWhitespace = true;
for (var j = lineStart; j < tokens.length; j++) {
isAllWhitespace =
(tokens[j].tag && tagTypes[tokens[j].tag] < tagTypes['_v']) ||
(!tokens[j].tag && tokens[j].match(rIsWhitespace) === null);
if (!isAllWhitespace) {
return false;
}
}
return isAllWhitespace;
}
function filterLine(haveSeenTag, noNewLine) {
addBuf();
if (haveSeenTag && lineIsWhitespace()) {
for (var j = lineStart, next; j < tokens.length; j++) {
if (!tokens[j].tag) {
if ((next = tokens[j+1]) && next.tag == '>') {
// set indent to token value
next.indent = tokens[j].toString()
}
tokens.splice(j, 1);
}
}
} else if (!noNewLine) {
tokens.push({tag:'\n'});
}
seenTag = false;
lineStart = tokens.length;
}
function changeDelimiters(text, index) {
var close = '=' + ctag,
closeIndex = text.indexOf(close, index),
delimiters = trim(
text.substring(text.indexOf('=', index) + 1, closeIndex)
).split(' ');
otag = delimiters[0];
ctag = delimiters[1];
return closeIndex + close.length - 1;
}
if (delimiters) {
delimiters = delimiters.split(' ');
otag = delimiters[0];
ctag = delimiters[1];
}
for (i = 0; i < len; i++) {
if (state == IN_TEXT) {
if (tagChange(otag, text, i)) {
--i;
addBuf();
state = IN_TAG_TYPE;
} else {
if (text.charAt(i) == '\n') {
filterLine(seenTag);
} else {
buf += text.charAt(i);
}
}
} else if (state == IN_TAG_TYPE) {
i += otag.length - 1;
tag = tagTypes[text.charAt(i + 1)];
tagType = tag ? text.charAt(i + 1) : '_v';
if (tagType == '=') {
i = changeDelimiters(text, i);
state = IN_TEXT;
} else {
if (tag) {
i++;
}
state = IN_TAG;
}
seenTag = i;
} else {
if (tagChange(ctag, text, i)) {
tokens.push({tag: tagType, n: trim(buf), otag: otag, ctag: ctag,
i: (tagType == '/') ? seenTag - ctag.length : i + otag.length});
buf = '';
i += ctag.length - 1;
state = IN_TEXT;
if (tagType == '{') {
if (ctag == '}}') {
i++;
} else {
cleanTripleStache(tokens[tokens.length - 1]);
}
}
} else {
buf += text.charAt(i);
}
}
}
filterLine(seenTag, true);
return tokens;
}
function cleanTripleStache(token) {
if (token.n.substr(token.n.length - 1) === '}') {
token.n = token.n.substring(0, token.n.length - 1);
}
}
function trim(s) {
if (s.trim) {
return s.trim();
}
return s.replace(/^\s*|\s*$/g, '');
}
function tagChange(tag, text, index) {
if (text.charAt(index) != tag.charAt(0)) {
return false;
}
for (var i = 1, l = tag.length; i < l; i++) {
if (text.charAt(index + i) != tag.charAt(i)) {
return false;
}
}
return true;
}
function buildTree(tokens, kind, stack, customTags) {
var instructions = [],
opener = null,
token = null;
while (tokens.length > 0) {
token = tokens.shift();
if (token.tag == '#' || token.tag == '^' || isOpener(token, customTags)) {
stack.push(token);
token.nodes = buildTree(tokens, token.tag, stack, customTags);
instructions.push(token);
} else if (token.tag == '/') {
if (stack.length === 0) {
throw new Error('Closing tag without opener: /' + token.n);
}
opener = stack.pop();
if (token.n != opener.n && !isCloser(token.n, opener.n, customTags)) {
throw new Error('Nesting error: ' + opener.n + ' vs. ' + token.n);
}
opener.end = token.i;
return instructions;
} else {
instructions.push(token);
}
}
if (stack.length > 0) {
throw new Error('missing closing tag: ' + stack.pop().n);
}
return instructions;
}
function isOpener(token, tags) {
for (var i = 0, l = tags.length; i < l; i++) {
if (tags[i].o == token.n) {
token.tag = '#';
return true;
}
}
}
function isCloser(close, open, tags) {
for (var i = 0, l = tags.length; i < l; i++) {
if (tags[i].c == close && tags[i].o == open) {
return true;
}
}
}
Hogan.generate = function (tree, text, options) {
var code = 'var _=this;_.b(i=i||"");' + walk(tree) + 'return _.fl();';
if (options.asString) {
return 'function(c,p,i){' + code + ';}';
}
return new Hogan.Template(new Function('c', 'p', 'i', code), text, Hogan, options);
}
function esc(s) {
return s.replace(rSlash, '\\\\')
.replace(rQuot, '\\\"')
.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 + '")){' +
'_.rs(c,p,' +
'function(c,p,_){' +
walk(nodes) +
'});c.pop();}';
}
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(_.t(_.' + 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, text, 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(this.parse(this.scan(text, options.delimiters), text, options), text, options);
return this.cache[key] = t;
};
})(typeof exports !== 'undefined' ? exports : Hogan);
