Function wordDistance

ServerEditorWeb/ace/ext-language_tools.js:1714–1733

(doc, pos)

        return textBefore.split(splitRegex).length - 1;
    }
    function wordDistance(doc, pos) {
        var prefixPos = getWordIndex(doc, pos);
        var words = doc.getValue().split(splitRegex);
        var wordScores = Object.create(null);
        
        var currentWord = words[prefixPos];

        words.forEach(function(word, idx) {
            if (!word || word === currentWord) return;

            var distance = Math.abs(prefixPos - idx);
            var score = words.length - distance;
            if (wordScores[word]) {
                wordScores[word] = Math.max(score, wordScores[word]);
            } else {
                wordScores[word] = score;
            }
        });
        return wordScores;
    }

    exports.getCompletions = function(editor, session, pos, prefix, callback) {
        var wordScore = wordDistance(session, pos, prefix);