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| 1 | +/* |
| 2 | + * Author: Constantin Jucovschi ([email protected]) |
| 3 | + * Licence: MIT |
| 4 | + */ |
| 5 | + |
| 6 | +CodeMirror.defineMode("stex", function(cmCfg, modeCfg) |
| 7 | +{ |
| 8 | + function pushCommand(state, command) { |
| 9 | + state.cmdState.push(command); |
| 10 | + } |
| 11 | + |
| 12 | + function peekCommand(state) { |
| 13 | + if (state.cmdState.length>0) |
| 14 | + return state.cmdState[state.cmdState.length-1]; |
| 15 | + else |
| 16 | + return null; |
| 17 | + } |
| 18 | + |
| 19 | + function popCommand(state) { |
| 20 | + if (state.cmdState.length>0) { |
| 21 | + var plug = state.cmdState.pop(); |
| 22 | + plug.closeBracket(); |
| 23 | + } |
| 24 | + } |
| 25 | + |
| 26 | + function applyMostPowerful(state) { |
| 27 | + context = state.cmdState; |
| 28 | + for (var i = context.length - 1; i >= 0; i--) { |
| 29 | + var plug = context[i]; |
| 30 | + if (plug.name=="DEFAULT") |
| 31 | + continue; |
| 32 | + return plug.styleIdentifier(); |
| 33 | + } |
| 34 | + return "stex-identifier"; |
| 35 | + } |
| 36 | + |
| 37 | + function addPluginPattern(pluginName, cmdStyle, brackets, styles) { |
| 38 | + return function () { |
| 39 | + this.name=pluginName; |
| 40 | + this.bracketNo = 0; |
| 41 | + this.style=cmdStyle; |
| 42 | + this.styles = styles; |
| 43 | + this.brackets = brackets; |
| 44 | + |
| 45 | + this.styleIdentifier = function(content) { |
| 46 | + if (this.bracketNo<=this.styles.length) |
| 47 | + return this.styles[this.bracketNo-1]; |
| 48 | + else |
| 49 | + return null; |
| 50 | + }; |
| 51 | + this.openBracket = function(content) { |
| 52 | + this.bracketNo++; |
| 53 | + return "stex-bracket"; |
| 54 | + }; |
| 55 | + this.closeBracket = function(content) { |
| 56 | + }; |
| 57 | + } |
| 58 | + } |
| 59 | + |
| 60 | + var plugins = new Array(); |
| 61 | + |
| 62 | + plugins["importmodule"] = addPluginPattern("importmodule", "stex-command", "{[", ["stex-filepath", "stex-module"]); |
| 63 | + plugins["documentclass"] = addPluginPattern("documentclass", "stex-command", "{[", ["", "stex-unit"]); |
| 64 | + plugins["usepackage"] = addPluginPattern("documentclass", "stex-command", "[", ["stex-unit"]); |
| 65 | + plugins["begin"] = addPluginPattern("documentclass", "stex-command", "[", ["stex-unit"]); |
| 66 | + plugins["end"] = addPluginPattern("documentclass", "stex-command", "[", ["stex-unit"]); |
| 67 | + |
| 68 | + plugins["DEFAULT"] = function () { |
| 69 | + this.name="DEFAULT"; |
| 70 | + this.style="stex-command"; |
| 71 | + |
| 72 | + this.styleIdentifier = function(content) { |
| 73 | + }; |
| 74 | + this.openBracket = function(content) { |
| 75 | + }; |
| 76 | + this.closeBracket = function(content) { |
| 77 | + }; |
| 78 | + }; |
| 79 | + |
| 80 | + function setState(state, f) { |
| 81 | + state.f = f; |
| 82 | + } |
| 83 | + |
| 84 | + function normal(source, state) { |
| 85 | + if (source.match(/^\\[a-z]+/)) { |
| 86 | + cmdName = source.current(); |
| 87 | + cmdName = cmdName.substr(1, cmdName.length-1); |
| 88 | + var plug = plugins[cmdName]; |
| 89 | + if (typeof(plug) == 'undefined') { |
| 90 | + plug = plugins["DEFAULT"]; |
| 91 | + } |
| 92 | + plug = new plug(); |
| 93 | + pushCommand(state, plug); |
| 94 | + setState(state, beginParams); |
| 95 | + return plug.style; |
| 96 | + } |
| 97 | + |
| 98 | + var ch = source.next(); |
| 99 | + if (ch == "%") { |
| 100 | + setState(state, inCComment); |
| 101 | + return "stex-comment"; |
| 102 | + } |
| 103 | + else if (ch=='}' || ch==']') { |
| 104 | + plug = peekCommand(state); |
| 105 | + if (plug) { |
| 106 | + plug.closeBracket(ch); |
| 107 | + setState(state, beginParams); |
| 108 | + } else |
| 109 | + return "stex-error"; |
| 110 | + return "stex-bracket"; |
| 111 | + } else if (ch=='{' || ch=='[') { |
| 112 | + plug = plugins["DEFAULT"]; |
| 113 | + plug = new plug(); |
| 114 | + pushCommand(state, plug); |
| 115 | + return "stex-bracket"; |
| 116 | + } |
| 117 | + else if (/\d/.test(ch)) { |
| 118 | + source.eatWhile(/[\w.%]/); |
| 119 | + return "stex-unit"; |
| 120 | + } |
| 121 | + else { |
| 122 | + source.eatWhile(/[\w-_]/); |
| 123 | + return applyMostPowerful(state); |
| 124 | + } |
| 125 | + } |
| 126 | + |
| 127 | + function inCComment(source, state) { |
| 128 | + source.skipToEnd(); |
| 129 | + setState(state, normal); |
| 130 | + return "css-comment"; |
| 131 | + } |
| 132 | + |
| 133 | + function beginParams(source, state) { |
| 134 | + var ch = source.peek(); |
| 135 | + if (ch == '{' || ch == '[') { |
| 136 | + lastPlug = peekCommand(state); |
| 137 | + style = lastPlug.openBracket(ch); |
| 138 | + source.eat(ch); |
| 139 | + setState(state, normal); |
| 140 | + return "stex-bracket"; |
| 141 | + } |
| 142 | + if (/[ \t\r]/.test(ch)) { |
| 143 | + source.eat(ch); |
| 144 | + return null; |
| 145 | + } |
| 146 | + setState(state, normal); |
| 147 | + lastPlug = peekCommand(state); |
| 148 | + if (lastPlug) { |
| 149 | + popCommand(state); |
| 150 | + } |
| 151 | + return normal(source, state); |
| 152 | + } |
| 153 | + |
| 154 | + return { |
| 155 | + startState: function() { return { f:normal, cmdState:[] }; }, |
| 156 | + copyState: function(s) { return { f: s.f, cmdState: s.cmdState.slice(0, s.cmdState.length) }; }, |
| 157 | + |
| 158 | + token: function(stream, state) { |
| 159 | + var t = state.f(stream, state); |
| 160 | + var w = stream.current(); |
| 161 | + return t; |
| 162 | + } |
| 163 | + }; |
| 164 | +}); |
| 165 | + |
| 166 | + |
| 167 | +CodeMirror.defineMIME("text/x-stex", "stex"); |
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