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CodeMirror.defineMode("yaml", function() {
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var cons = ['true', 'false', 'on', 'off', 'yes', 'no'];
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var keywordRegex = new RegExp("\\b(("+cons.join(")|(")+"))$", 'i');
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return {
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token: function(stream, state) {
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var ch = stream.peek();
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var esc = state.escaped;
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state.escaped = false;
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/* comments */
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if (ch == "#") { stream.skipToEnd(); return "comment"; }
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if (state.literal && stream.indentation() > state.keyCol) {
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stream.skipToEnd(); return "string";
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} else if (state.literal) { state.literal = false; }
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if (stream.sol()) {
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state.keyCol = 0;
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state.pair = false;
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state.pairStart = false;
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/* document start */
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if(stream.match(/---/)) { return "def"; }
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/* document end */
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if (stream.match(/\.\.\./)) { return "def"; }
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/* array list item */
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if (stream.match(/\s*-\s+/)) { return 'meta'; }
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}
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/* pairs (associative arrays) -> key */
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if (!state.pair && stream.match(/^\s*([a-z0-9\._-])+(?=\s*:)/i)) {
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state.pair = true;
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state.keyCol = stream.indentation();
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return "atom";
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}
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if (state.pair && stream.match(/^:\s*/)) { state.pairStart = true; return 'meta'; }
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/* inline pairs/lists */
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if (stream.match(/^(\{|\}|\[|\])/)) {
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if (ch == '{')
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state.inlinePairs++;
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else if (ch == '}')
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state.inlinePairs--;
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else if (ch == '[')
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state.inlineList++;
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else
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state.inlineList--;
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return 'meta';
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}
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/* list seperator */
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if (state.inlineList > 0 && !esc && ch == ',') {
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stream.next();
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return 'meta';
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}
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/* pairs seperator */
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if (state.inlinePairs > 0 && !esc && ch == ',') {
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state.keyCol = 0;
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state.pair = false;
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state.pairStart = false;
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stream.next();
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return 'meta';
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}
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/* start of value of a pair */
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if (state.pairStart) {
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/* block literals */
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if (stream.match(/^\s*(\||\>)\s*/)) { state.literal = true; return 'meta'; };
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/* references */
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if (stream.match(/^\s*(\&|\*)[a-z0-9\._-]+\b/i)) { return 'variable-2'; }
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/* numbers */
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if (state.inlinePairs == 0 && stream.match(/^\s*-?[0-9\.\,]+\s?$/)) { return 'number'; }
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if (state.inlinePairs > 0 && stream.match(/^\s*-?[0-9\.\,]+\s?(?=(,|}))/)) { return 'number'; }
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/* keywords */
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if (stream.match(keywordRegex)) { return 'keyword'; }
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}
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/* nothing found, continue */
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state.pairStart = false;
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state.escaped = (ch == '\\');
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stream.next();
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return null;
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},
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startState: function() {
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return {
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pair: false,
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pairStart: false,
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keyCol: 0,
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inlinePairs: 0,
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inlineList: 0,
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literal: false,
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escaped: false
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};
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}
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};
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});
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CodeMirror.defineMIME("text/x-yaml", "yaml");
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