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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 (function(mod) {
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5 if (typeof exports == "object" && typeof module == "object") // CommonJS
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6 mod(require("../../lib/codemirror"), "cjs");
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7 else if (typeof define == "function" && define.amd) // AMD
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8 define(["../../lib/codemirror"], function(CM) { mod(CM, "amd"); });
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9 else // Plain browser env
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10 mod(CodeMirror, "plain");
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11 })(function(CodeMirror, env) {
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12 if (!CodeMirror.modeURL) CodeMirror.modeURL = "../mode/%N/%N.js";
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13
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14 var loading = {};
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15 function splitCallback(cont, n) {
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16 var countDown = n;
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17 return function() { if (--countDown == 0) cont(); };
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18 }
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19 function ensureDeps(mode, cont, options) {
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20 var modeObj = CodeMirror.modes[mode], deps = modeObj && modeObj.dependencies;
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21 if (!deps) return cont();
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22 var missing = [];
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23 for (var i = 0; i < deps.length; ++i) {
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24 if (!CodeMirror.modes.hasOwnProperty(deps[i]))
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25 missing.push(deps[i]);
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26 }
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27 if (!missing.length) return cont();
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28 var split = splitCallback(cont, missing.length);
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29 for (var i = 0; i < missing.length; ++i)
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30 CodeMirror.requireMode(missing[i], split, options);
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31 }
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32
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33 CodeMirror.requireMode = function(mode, cont, options) {
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34 if (typeof mode != "string") mode = mode.name;
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35 if (CodeMirror.modes.hasOwnProperty(mode)) return ensureDeps(mode, cont, options);
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36 if (loading.hasOwnProperty(mode)) return loading[mode].push(cont);
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37
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38 var file = options && options.path ? options.path(mode) : CodeMirror.modeURL.replace(/%N/g, mode);
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39 if (options && options.loadMode) {
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40 options.loadMode(file, function() { ensureDeps(mode, cont, options) })
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41 } else if (env == "plain") {
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42 var script = document.createElement("script");
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43 script.src = file;
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44 var others = document.getElementsByTagName("script")[0];
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45 var list = loading[mode] = [cont];
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46 CodeMirror.on(script, "load", function() {
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47 ensureDeps(mode, function() {
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48 for (var i = 0; i < list.length; ++i) list[i]();
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49 }, options);
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50 });
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51 others.parentNode.insertBefore(script, others);
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52 } else if (env == "cjs") {
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53 require(file);
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54 cont();
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55 } else if (env == "amd") {
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56 requirejs([file], cont);
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57 }
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58 };
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59
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60 CodeMirror.autoLoadMode = function(instance, mode, options) {
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61 if (!CodeMirror.modes.hasOwnProperty(mode))
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62 CodeMirror.requireMode(mode, function() {
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63 instance.setOption("mode", instance.getOption("mode"));
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64 }, options);
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65 };
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66 });
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