// CodeMirror, copyright (c) by Marijn Haverbeke and others

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// Distributed under an MIT license: http://codemirror.net/LICENSE

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/**

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* Smarty 2 and 3 mode.

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*/

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(function(mod) {

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if (typeof exports == "object" && typeof module == "object") // CommonJS

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mod(require("../../lib/codemirror"));

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else if (typeof define == "function" && define.amd) // AMD

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define(["../../lib/codemirror"], mod);

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else // Plain browser env

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mod(CodeMirror);

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})(function(CodeMirror) {

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"use strict";

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CodeMirror.defineMode("smarty", function(config, parserConf) {

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var rightDelimiter = parserConf.rightDelimiter || "}";

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var leftDelimiter = parserConf.leftDelimiter || "{";

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var version = parserConf.version || 2;

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var baseMode = CodeMirror.getMode(config, parserConf.baseMode || "null");

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var keyFunctions = ["debug", "extends", "function", "include", "literal"];

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var regs = {

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operatorChars: /[+\-*&%=<>!?]/,

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validIdentifier: /[a-zA-Z0-9_]/,

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stringChar: /['"]/

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};

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var last;

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function cont(style, lastType) {

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last = lastType;

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return style;

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}

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function chain(stream, state, parser) {

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state.tokenize = parser;

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return parser(stream, state);

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}

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// Smarty 3 allows { and } surrounded by whitespace to NOT slip into Smarty mode

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function doesNotCount(stream, pos) {

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if (pos == null) pos = stream.pos;

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return version === 3 && leftDelimiter == "{" &&

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(pos == stream.string.length || /\s/.test(stream.string.charAt(pos)));

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}

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function tokenTop(stream, state) {

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var string = stream.string;

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for (var scan = stream.pos;;) {

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var nextMatch = string.indexOf(leftDelimiter, scan);

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scan = nextMatch + leftDelimiter.length;

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if (nextMatch == -1 || !doesNotCount(stream, nextMatch + leftDelimiter.length)) break;

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}

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if (nextMatch == stream.pos) {

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stream.match(leftDelimiter);

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if (stream.eat("*")) {

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return chain(stream, state, tokenBlock("comment", "*" + rightDelimiter));

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} else {

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state.depth++;

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state.tokenize = tokenSmarty;

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last = "startTag";

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return "tag";

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}

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}

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if (nextMatch > -1) stream.string = string.slice(0, nextMatch);

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var token = baseMode.token(stream, state.base);

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if (nextMatch > -1) stream.string = string;

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return token;

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}

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// parsing Smarty content

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function tokenSmarty(stream, state) {

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if (stream.match(rightDelimiter, true)) {

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if (version === 3) {

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state.depth--;

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if (state.depth <= 0) {

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state.tokenize = tokenTop;

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}

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} else {

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state.tokenize = tokenTop;

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}

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return cont("tag", null);

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}

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if (stream.match(leftDelimiter, true)) {

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state.depth++;

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return cont("tag", "startTag");

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}

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var ch = stream.next();

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if (ch == "$") {

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stream.eatWhile(regs.validIdentifier);

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return cont("variable-2", "variable");

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} else if (ch == "|") {

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return cont("operator", "pipe");

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} else if (ch == ".") {

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return cont("operator", "property");

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} else if (regs.stringChar.test(ch)) {

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state.tokenize = tokenAttribute(ch);

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return cont("string", "string");

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} else if (regs.operatorChars.test(ch)) {

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stream.eatWhile(regs.operatorChars);

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return cont("operator", "operator");

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} else if (ch == "[" || ch == "]") {

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return cont("bracket", "bracket");

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} else if (ch == "(" || ch == ")") {

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return cont("bracket", "operator");

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} else if (/\d/.test(ch)) {

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stream.eatWhile(/\d/);

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return cont("number", "number");

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} else {

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if (state.last == "variable") {

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if (ch == "@") {

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stream.eatWhile(regs.validIdentifier);

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return cont("property", "property");

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} else if (ch == "|") {

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stream.eatWhile(regs.validIdentifier);

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return cont("qualifier", "modifier");

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}

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} else if (state.last == "pipe") {

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stream.eatWhile(regs.validIdentifier);

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return cont("qualifier", "modifier");

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} else if (state.last == "whitespace") {

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stream.eatWhile(regs.validIdentifier);

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return cont("attribute", "modifier");

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} if (state.last == "property") {

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stream.eatWhile(regs.validIdentifier);

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return cont("property", null);

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} else if (/\s/.test(ch)) {

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last = "whitespace";

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return null;

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}

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var str = "";

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if (ch != "/") {

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str += ch;

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}

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var c = null;

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while (c = stream.eat(regs.validIdentifier)) {

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str += c;

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}

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for (var i=0, j=keyFunctions.length; i<j; i++) {

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if (keyFunctions[i] == str) {

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return cont("keyword", "keyword");

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}

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}

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if (/\s/.test(ch)) {

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return null;

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}

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return cont("tag", "tag");

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}

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}

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function tokenAttribute(quote) {

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return function(stream, state) {

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var prevChar = null;

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var currChar = null;

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while (!stream.eol()) {

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currChar = stream.peek();

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if (stream.next() == quote && prevChar !== '\\') {

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state.tokenize = tokenSmarty;

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break;

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}

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prevChar = currChar;

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}

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return "string";

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};

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}

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function tokenBlock(style, terminator) {

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return function(stream, state) {

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while (!stream.eol()) {

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if (stream.match(terminator)) {

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state.tokenize = tokenTop;

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break;

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}

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stream.next();

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}

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return style;

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};

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}

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return {

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startState: function() {

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return {

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base: CodeMirror.startState(baseMode),

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tokenize: tokenTop,

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last: null,

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depth: 0

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};

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},

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copyState: function(state) {

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return {

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base: CodeMirror.copyState(baseMode, state.base),

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tokenize: state.tokenize,

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last: state.last,

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depth: state.depth

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};

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},

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innerMode: function(state) {

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if (state.tokenize == tokenTop)

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return {mode: baseMode, state: state.base};

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},

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token: function(stream, state) {

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var style = state.tokenize(stream, state);

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state.last = last;

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return style;

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},

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indent: function(state, text) {

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if (state.tokenize == tokenTop && baseMode.indent)

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return baseMode.indent(state.base, text);

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else

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return CodeMirror.Pass;

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},

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blockCommentStart: leftDelimiter + "*",

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blockCommentEnd: "*" + rightDelimiter

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};

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});

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CodeMirror.defineMIME("text/x-smarty", "smarty");

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});

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