42 lines
1.6 KiB
JavaScript
42 lines
1.6 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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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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var WORD = /[\w$]+/, RANGE = 500;
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CodeMirror.registerHelper("hint", "anyword", function(editor, options) {
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var word = options && options.word || WORD;
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var range = options && options.range || RANGE;
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var cur = editor.getCursor(), curLine = editor.getLine(cur.line);
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var end = cur.ch, start = end;
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while (start && word.test(curLine.charAt(start - 1))) --start;
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var curWord = start != end && curLine.slice(start, end);
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var list = options && options.list || [], seen = {};
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var re = new RegExp(word.source, "g");
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for (var dir = -1; dir <= 1; dir += 2) {
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var line = cur.line, endLine = Math.min(Math.max(line + dir * range, editor.firstLine()), editor.lastLine()) + dir;
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for (; line != endLine; line += dir) {
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var text = editor.getLine(line), m;
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while (m = re.exec(text)) {
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if (line == cur.line && m[0] === curWord) continue;
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if ((!curWord || m[0].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, m[0])) {
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seen[m[0]] = true;
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list.push(m[0]);
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}
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}
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}
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}
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return {list: list, from: CodeMirror.Pos(cur.line, start), to: CodeMirror.Pos(cur.line, end)};
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});
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});
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