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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"));
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7 else if (typeof define == "function" && define.amd) // AMD
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8 define(["../../lib/codemirror"], mod);
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9 else // Plain browser env
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10 mod(CodeMirror);
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11 })(function(CodeMirror) {
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12 "use strict";
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13
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14 var WORD = /[\w$]+/, RANGE = 500;
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15
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16 CodeMirror.registerHelper("hint", "anyword", function(editor, options) {
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17 var word = options && options.word || WORD;
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18 var range = options && options.range || RANGE;
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19 var cur = editor.getCursor(), curLine = editor.getLine(cur.line);
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20 var end = cur.ch, start = end;
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21 while (start && word.test(curLine.charAt(start - 1))) --start;
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22 var curWord = start != end && curLine.slice(start, end);
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23
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24 var list = options && options.list || [], seen = {};
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25 var re = new RegExp(word.source, "g");
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26 for (var dir = -1; dir <= 1; dir += 2) {
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27 var line = cur.line, endLine = Math.min(Math.max(line + dir * range, editor.firstLine()), editor.lastLine()) + dir;
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28 for (; line != endLine; line += dir) {
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29 var text = editor.getLine(line), m;
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30 while (m = re.exec(text)) {
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31 if (line == cur.line && m[0] === curWord) continue;
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32 if ((!curWord || m[0].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, m[0])) {
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33 seen[m[0]] = true;
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34 list.push(m[0]);
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35 }
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36 }
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37 }
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38 }
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39 return {list: list, from: CodeMirror.Pos(cur.line, start), to: CodeMirror.Pos(cur.line, end)};
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40 });
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41 });
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