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@ -3,244 +3,258 @@ PEG.compiler.emitter = function(ast, options) {
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options = options || {};
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options.trackLineAndColumn = options.trackLineAndColumn || false;
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/*
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* Codie 1.1.0
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*
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* https://github.com/dmajda/codie
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*
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* Copyright (c) 2011-2012 David Majda
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* Licensend under the MIT license.
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*/
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var Codie = (function(undefined) {
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function stringEscape(s) {
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function hex(ch) { return ch.charCodeAt(0).toString(16).toUpperCase(); }
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/*
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* ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a
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* string literal except for the closing quote character, backslash,
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* carriage return, line separator, paragraph separator, and line feed.
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* Any character may appear in the form of an escape sequence.
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*
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* For portability, we also escape escape all control and non-ASCII
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* characters. Note that "\0" and "\v" escape sequences are not used
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* because JSHint does not like the first and IE the second.
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*/
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return s
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.replace(/\\/g, '\\\\') // backslash
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.replace(/"/g, '\\"') // closing double quote
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.replace(/\x08/g, '\\b') // backspace
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.replace(/\t/g, '\\t') // horizontal tab
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.replace(/\n/g, '\\n') // line feed
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.replace(/\f/g, '\\f') // form feed
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.replace(/\r/g, '\\r') // carriage return
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.replace(/[\x00-\x07\x0B\x0E\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
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.replace(/[\x10-\x1F\x80-\xFF]/g, function(ch) { return '\\x' + hex(ch); })
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.replace(/[\u0180-\u0FFF]/g, function(ch) { return '\\u0' + hex(ch); })
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.replace(/[\u1080-\uFFFF]/g, function(ch) { return '\\u' + hex(ch); });
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}
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function push(s) { return '__p.push(' + s + ');'; }
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function pushRaw(template, length, state) {
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function unindent(code, level, unindentFirst) {
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return code.replace(
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new RegExp('^.{' + level +'}', "gm"),
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function(str, offset) {
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if (offset === 0) {
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return unindentFirst ? '' : str;
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} else {
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return "";
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}
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}
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);
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}
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function stringEscape(s) {
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function hex(ch) { return ch.charCodeAt(0).toString(16).toUpperCase(); }
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var escaped = stringEscape(unindent(
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template.substring(0, length),
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state.indentLevel(),
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state.atBOL
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));
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/*
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* ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a
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* string literal except for the closing quote character, backslash,
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* carriage return, line separator, paragraph separator, and line feed.
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* Any character may appear in the form of an escape sequence.
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*
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* For portability, we also escape escape all control and non-ASCII
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* characters. Note that "\0" and "\v" escape sequences are not used
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* because JSHint does not like the first and IE the second.
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*/
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return s
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.replace(/\\/g, '\\\\') // backslash
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.replace(/"/g, '\\"') // closing double quote
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.replace(/\x08/g, '\\b') // backspace
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.replace(/\t/g, '\\t') // horizontal tab
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.replace(/\n/g, '\\n') // line feed
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.replace(/\f/g, '\\f') // form feed
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.replace(/\r/g, '\\r') // carriage return
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.replace(/[\x00-\x07\x0B\x0E\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
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.replace(/[\x10-\x1F\x80-\xFF]/g, function(ch) { return '\\x' + hex(ch); })
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.replace(/[\u0180-\u0FFF]/g, function(ch) { return '\\u0' + hex(ch); })
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.replace(/[\u1080-\uFFFF]/g, function(ch) { return '\\u' + hex(ch); });
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}
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return escaped.length > 0 ? push('"' + escaped + '"') : '';
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function push(s) { return '__p.push(' + s + ');'; }
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function pushRaw(template, length, state) {
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function unindent(code, level, unindentFirst) {
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return code.replace(
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new RegExp('^.{' + level +'}', "gm"),
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function(str, offset) {
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if (offset === 0) {
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return unindentFirst ? '' : str;
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} else {
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return "";
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}
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}
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);
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}
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var Codie = {
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/*
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* Specifies by how many characters do #if/#else and #for unindent their
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* content in the generated code.
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*/
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indentStep: 2,
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/* Description of #-commands. Extend to define your own commands. */
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commands: {
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"if": {
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params: /^(.*)$/,
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compile: function(state, prefix, params) {
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return ['if(' + params[0] + '){', []];
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},
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stackOp: "push"
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var escaped = stringEscape(unindent(
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template.substring(0, length),
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state.indentLevel(),
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state.atBOL
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));
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return escaped.length > 0 ? push('"' + escaped + '"') : '';
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}
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var Codie = {
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/* Codie version (uses semantic versioning). */
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VERSION: "1.1.0",
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/*
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* Specifies by how many characters do #if/#else and #for unindent their
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* content in the generated code.
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*/
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indentStep: 2,
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/* Description of #-commands. Extend to define your own commands. */
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commands: {
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"if": {
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params: /^(.*)$/,
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compile: function(state, prefix, params) {
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return ['if(' + params[0] + '){', []];
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},
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"else": {
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params: /^$/,
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compile: function(state) {
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var stack = state.commandStack,
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insideElse = stack[stack.length - 1] === "else",
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insideIf = stack[stack.length - 1] === "if";
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stackOp: "push"
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},
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"else": {
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params: /^$/,
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compile: function(state) {
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var stack = state.commandStack,
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insideElse = stack[stack.length - 1] === "else",
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insideIf = stack[stack.length - 1] === "if";
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if (insideElse) { throw new Error("Multiple #elses."); }
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if (!insideIf) { throw new Error("Using #else outside of #if."); }
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if (insideElse) { throw new Error("Multiple #elses."); }
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if (!insideIf) { throw new Error("Using #else outside of #if."); }
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return ['}else{', []];
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},
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stackOp: "replace"
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return ['}else{', []];
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},
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"for": {
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params: /^([a-zA-Z_][a-zA-Z0-9_]*)[ \t]+in[ \t]+(.*)$/,
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init: function(state) {
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state.forCurrLevel = 0; // current level of #for loop nesting
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state.forMaxLevel = 0; // maximum level of #for loop nesting
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},
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compile: function(state, prefix, params) {
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var c = '__c' + state.forCurrLevel, // __c for "collection"
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l = '__l' + state.forCurrLevel, // __l for "length"
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i = '__i' + state.forCurrLevel; // __i for "index"
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state.forCurrLevel++;
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if (state.forMaxLevel < state.forCurrLevel) {
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state.forMaxLevel = state.forCurrLevel;
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}
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stackOp: "replace"
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},
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"for": {
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params: /^([a-zA-Z_][a-zA-Z0-9_]*)[ \t]+in[ \t]+(.*)$/,
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init: function(state) {
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state.forCurrLevel = 0; // current level of #for loop nesting
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state.forMaxLevel = 0; // maximum level of #for loop nesting
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},
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compile: function(state, prefix, params) {
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var c = '__c' + state.forCurrLevel, // __c for "collection"
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l = '__l' + state.forCurrLevel, // __l for "length"
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i = '__i' + state.forCurrLevel; // __i for "index"
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state.forCurrLevel++;
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if (state.forMaxLevel < state.forCurrLevel) {
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state.forMaxLevel = state.forCurrLevel;
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}
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return [
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c + '=' + params[1] + ';'
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+ l + '=' + c + '.length;'
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+ 'for(' + i + '=0;' + i + '<' + l + ';' + i + '++){'
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+ params[0] + '=' + c + '[' + i + '];',
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[params[0], c, l, i]
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];
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},
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exit: function(state) { state.forCurrLevel--; },
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stackOp: "push"
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return [
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c + '=' + params[1] + ';'
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+ l + '=' + c + '.length;'
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+ 'for(' + i + '=0;' + i + '<' + l + ';' + i + '++){'
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+ params[0] + '=' + c + '[' + i + '];',
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[params[0], c, l, i]
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];
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},
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"end": {
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params: /^$/,
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compile: function(state) {
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var stack = state.commandStack, exit;
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exit: function(state) { state.forCurrLevel--; },
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stackOp: "push"
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},
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"end": {
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params: /^$/,
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compile: function(state) {
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var stack = state.commandStack, exit;
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if (stack.length === 0) { throw new Error("Too many #ends."); }
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if (stack.length === 0) { throw new Error("Too many #ends."); }
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exit = Codie.commands[stack[stack.length - 1]].exit;
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if (exit) { exit(state); }
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exit = Codie.commands[stack[stack.length - 1]].exit;
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if (exit) { exit(state); }
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return ['}', []];
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},
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stackOp: "pop"
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return ['}', []];
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},
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"block": {
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params: /^(.*)$/,
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compile: function(state, prefix, params) {
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var x = '__x', // __x for "prefix",
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n = '__n', // __n for "lines"
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l = '__l', // __l for "length"
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i = '__i'; // __i for "index"
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/*
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* Originally, the generated code used |String.prototype.replace|, but
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* it is buggy in certain versions of V8 so it was rewritten. See the
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* tests for details.
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*/
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return [
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x + '="' + stringEscape(prefix.substring(state.indentLevel())) + '";'
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+ n + '=(' + params[0] + ').toString().split("\\n");'
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+ l + '=' + n + '.length;'
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+ 'for(' + i + '=0;' + i + '<' + l + ';' + i + '++){'
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+ n + '[' + i +']=' + x + '+' + n + '[' + i + ']+"\\n";'
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+ '}'
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+ push(n + '.join("")'),
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[x, n, l, i]
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];
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},
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stackOp: "nop"
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}
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stackOp: "pop"
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},
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"block": {
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params: /^(.*)$/,
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compile: function(state, prefix, params) {
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var x = '__x', // __x for "prefix",
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n = '__n', // __n for "lines"
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l = '__l', // __l for "length"
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i = '__i'; // __i for "index"
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/*
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* Originally, the generated code used |String.prototype.replace|, but
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* it is buggy in certain versions of V8 so it was rewritten. See the
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* tests for details.
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*/
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return [
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x + '="' + stringEscape(prefix.substring(state.indentLevel())) + '";'
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+ n + '=(' + params[0] + ').toString().split("\\n");'
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+ l + '=' + n + '.length;'
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+ 'for(' + i + '=0;' + i + '<' + l + ';' + i + '++){'
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+ n + '[' + i +']=' + x + '+' + n + '[' + i + ']+"\\n";'
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+ '}'
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+ push(n + '.join("")'),
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[x, n, l, i]
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];
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},
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stackOp: "nop"
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}
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},
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/*
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* Compiles a template into a function. When called, this function will
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* execute the template in the context of an object passed in a parameter and
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* return the result.
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*/
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template: function(template) {
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var stackOps = {
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push: function(stack, name) { stack.push(name); },
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replace: function(stack, name) { stack[stack.length - 1] = name; },
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pop: function(stack) { stack.pop(); },
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nop: function() { }
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};
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function compileExpr(state, expr) {
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state.atBOL = false;
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return [push(expr), []];
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}
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/*
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* Compiles a template into a function. When called, this function will
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* execute the template in the context of an object passed in a parameter and
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* return the result.
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*/
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template: function(template) {
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var stackOps = {
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push: function(stack, name) { stack.push(name); },
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replace: function(stack, name) { stack[stack.length - 1] = name; },
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pop: function(stack) { stack.pop(); },
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nop: function() { }
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};
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function compileCommand(state, prefix, name, params) {
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var command, match, result;
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function compileExpr(state, expr) {
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state.atBOL = false;
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return [push(expr), []];
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}
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command = Codie.commands[name];
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if (!command) { throw new Error("Unknown command: #" + name + "."); }
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function compileCommand(state, prefix, name, params) {
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var command, match, result;
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match = command.params.exec(params);
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if (match === null) {
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throw new Error(
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|
"Invalid params for command #" + name + ": " + params + "."
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);
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|
}
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command = Codie.commands[name];
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|
if (!command) { throw new Error("Unknown command: #" + name + "."); }
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result = command.compile(state, prefix, match.slice(1));
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stackOps[command.stackOp](state.commandStack, name);
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|
state.atBOL = true;
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|
|
return result;
|
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|
|
match = command.params.exec(params);
|
|
|
|
|
if (match === null) {
|
|
|
|
|
throw new Error(
|
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|
|
"Invalid params for command #" + name + ": " + params + "."
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|
|
|
);
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|
}
|
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|
|
var state = { // compilation state
|
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|
|
|
commandStack: [], // stack of commands as they were nested
|
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|
|
atBOL: true, // is the next character to process at BOL?
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|
|
indentLevel: function() {
|
|
|
|
|
return Codie.indentStep * this.commandStack.length;
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
code = '', // generated template function code
|
|
|
|
|
vars = ['__p=[]'], // variables used by generated code
|
|
|
|
|
name, match, result, i;
|
|
|
|
|
|
|
|
|
|
/* Initialize state. */
|
|
|
|
|
for (name in Codie.commands) {
|
|
|
|
|
if (Codie.commands[name].init) { Codie.commands[name].init(state); }
|
|
|
|
|
}
|
|
|
|
|
result = command.compile(state, prefix, match.slice(1));
|
|
|
|
|
stackOps[command.stackOp](state.commandStack, name);
|
|
|
|
|
state.atBOL = true;
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Compile the template. */
|
|
|
|
|
while ((match = /^([ \t]*)#([a-zA-Z_][a-zA-Z0-9_]*)(?:[ \t]+([^ \t\n][^\n]*))?[ \t]*(?:\n|$)|#\{([^}]*)\}/m.exec(template)) !== null) {
|
|
|
|
|
code += pushRaw(template, match.index, state);
|
|
|
|
|
result = match[2] !== undefined && match[2] !== ""
|
|
|
|
|
? compileCommand(state, match[1], match[2], match[3] || "") // #-command
|
|
|
|
|
: compileExpr(state, match[4]); // #{...}
|
|
|
|
|
code += result[0];
|
|
|
|
|
vars = vars.concat(result[1]);
|
|
|
|
|
template = template.substring(match.index + match[0].length);
|
|
|
|
|
}
|
|
|
|
|
code += pushRaw(template, template.length, state);
|
|
|
|
|
var state = { // compilation state
|
|
|
|
|
commandStack: [], // stack of commands as they were nested
|
|
|
|
|
atBOL: true, // is the next character to process at BOL?
|
|
|
|
|
indentLevel: function() {
|
|
|
|
|
return Codie.indentStep * this.commandStack.length;
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
code = '', // generated template function code
|
|
|
|
|
vars = ['__p=[]'], // variables used by generated code
|
|
|
|
|
name, match, result, i;
|
|
|
|
|
|
|
|
|
|
/* Initialize state. */
|
|
|
|
|
for (name in Codie.commands) {
|
|
|
|
|
if (Codie.commands[name].init) { Codie.commands[name].init(state); }
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Check the final state. */
|
|
|
|
|
if (state.commandStack.length > 0) { throw new Error("Missing #end."); }
|
|
|
|
|
/* Compile the template. */
|
|
|
|
|
while ((match = /^([ \t]*)#([a-zA-Z_][a-zA-Z0-9_]*)(?:[ \t]+([^ \t\n][^\n]*))?[ \t]*(?:\n|$)|#\{([^}]*)\}/m.exec(template)) !== null) {
|
|
|
|
|
code += pushRaw(template, match.index, state);
|
|
|
|
|
result = match[2] !== undefined && match[2] !== ""
|
|
|
|
|
? compileCommand(state, match[1], match[2], match[3] || "") // #-command
|
|
|
|
|
: compileExpr(state, match[4]); // #{...}
|
|
|
|
|
code += result[0];
|
|
|
|
|
vars = vars.concat(result[1]);
|
|
|
|
|
template = template.substring(match.index + match[0].length);
|
|
|
|
|
}
|
|
|
|
|
code += pushRaw(template, template.length, state);
|
|
|
|
|
|
|
|
|
|
/* Sanitize the list of variables used by commands. */
|
|
|
|
|
vars.sort();
|
|
|
|
|
for (i = 0; i < vars.length; i++) {
|
|
|
|
|
if (vars[i] === vars[i - 1]) { vars.splice(i--, 1); }
|
|
|
|
|
}
|
|
|
|
|
/* Check the final state. */
|
|
|
|
|
if (state.commandStack.length > 0) { throw new Error("Missing #end."); }
|
|
|
|
|
|
|
|
|
|
/* Create the resulting function. */
|
|
|
|
|
return new Function("__v", [
|
|
|
|
|
'__v=__v||{};',
|
|
|
|
|
'var ' + vars.join(',') + ';',
|
|
|
|
|
'with(__v){',
|
|
|
|
|
code,
|
|
|
|
|
'return __p.join("").replace(/^\\n+|\\n+$/g,"");};'
|
|
|
|
|
].join(''));
|
|
|
|
|
/* Sanitize the list of variables used by commands. */
|
|
|
|
|
vars.sort();
|
|
|
|
|
for (i = 0; i < vars.length; i++) {
|
|
|
|
|
if (vars[i] === vars[i - 1]) { vars.splice(i--, 1); }
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
return Codie;
|
|
|
|
|
/* Create the resulting function. */
|
|
|
|
|
return new Function("__v", [
|
|
|
|
|
'__v=__v||{};',
|
|
|
|
|
'var ' + vars.join(',') + ';',
|
|
|
|
|
'with(__v){',
|
|
|
|
|
code,
|
|
|
|
|
'return __p.join("").replace(/^\\n+|\\n+$/g,"");};'
|
|
|
|
|
].join(''));
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
return Codie;
|
|
|
|
|
|
|
|
|
|
})();
|
|
|
|
|
|
|
|
|
|
var templates = (function() {
|
|
|
|
|
|
David Majda
12 years ago