static/ext/src/ux/AceEditor.js
function() {
        this.isUpdating = true;
        var input = {
            typed: this.element.value,
            cursor: {
                start: dom.getSelectionStart(this.element),
                end: dom.getSelectionEnd(this.element.selectionEnd)
            }
        };
        this.cli.update(input);

        var display = this.cli.getAssignmentAt(input.cursor.start).getHint();

        // 1. Update the completer with prompt/error marker/TAB info
        dom.removeCssClass(this.completer, Status.VALID.toString());
        dom.removeCssClass(this.completer, Status.INCOMPLETE.toString());
        dom.removeCssClass(this.completer, Status.INVALID.toString());

        var completion = '<span class="cptPrompt">&gt;</span> ';
        if (this.element.value.length > 0) {
            var scores = this.cli.getInputStatusMarkup();
            completion += this.markupStatusScore(scores);
        }

        // Display the "-> prediction" at the end of the completer
        if (this.element.value.length > 0 &&
                display.predictions && display.predictions.length > 0) {
            var tab = display.predictions[0];
            completion += ' &nbsp;&#x21E5; ' + (tab.name ? tab.name : tab);
        }
        this.completer.innerHTML = completion;
        dom.addCssClass(this.completer, this.cli.getWorstHint().status.toString());

        // 2. Update the hint element
        var hint = '';
        if (this.element.value.length !== 0) {
            hint += display.message;
            if (display.predictions && display.predictions.length > 0) {
                hint += ': [ ';
                display.predictions.forEach(function(prediction) {
                    hint += (prediction.name ? prediction.name : prediction);
                    hint += ' | ';
                }, this);
                hint = hint.replace(/\| $/, ']');
            }
        }

        this.hinter.innerHTML = hint;
        if (hint.length === 0) {
            dom.addCssClass(this.hinter, 'cptNoPopup');
        }
        else {
            dom.removeCssClass(this.hinter, 'cptNoPopup');
        }

        this.isUpdating = false;
    }
function() {
        this.isUpdating = true;
        var input = {
            typed: this.element.value,
            cursor: {
                start: dom.getSelectionStart(this.element),
                end: dom.getSelectionEnd(this.element.selectionEnd)
            }
        };
        this.cli.update(input);

        var display = this.cli.getAssignmentAt(input.cursor.start).getHint();

        // 1. Update the completer with prompt/error marker/TAB info
        dom.removeCssClass(this.completer, Status.VALID.toString());
        dom.removeCssClass(this.completer, Status.INCOMPLETE.toString());
        dom.removeCssClass(this.completer, Status.INVALID.toString());

        var completion = '<span class="cptPrompt">&gt;</span> ';
        if (this.element.value.length > 0) {
            var scores = this.cli.getInputStatusMarkup();
            completion += this.markupStatusScore(scores);
        }

        // Display the "-> prediction" at the end of the completer
        if (this.element.value.length > 0 &&
                display.predictions && display.predictions.length > 0) {
            var tab = display.predictions[0];
            completion += ' &nbsp;&#x21E5; ' + (tab.name ? tab.name : tab);
        }
        this.completer.innerHTML = completion;
        dom.addCssClass(this.completer, this.cli.getWorstHint().status.toString());

        // 2. Update the hint element
        var hint = '';
        if (this.element.value.length !== 0) {
            hint += display.message;
            if (display.predictions && display.predictions.length > 0) {
                hint += ': [ ';
                display.predictions.forEach(function(prediction) {
                    hint += (prediction.name ? prediction.name : prediction);
                    hint += ' | ';
                }, this);
                hint = hint.replace(/\| $/, ']');
            }
        }

        this.hinter.innerHTML = hint;
        if (hint.length === 0) {
            dom.addCssClass(this.hinter, 'cptNoPopup');
        }
        else {
            dom.removeCssClass(this.hinter, 'cptNoPopup');
        }

        this.isUpdating = false;
    }
Actually parse the input and make sure we're all up to date