simplemde-markdown-editor/src/js/codemirror/tablist.js

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

var CodeMirror = require('codemirror');

CodeMirror.commands.tabAndIndentMarkdownList = function (cm) {
    var ranges = cm.listSelections();
    var pos = ranges[0].head;
    var eolState = cm.getStateAfter(pos.line);
    var inList = eolState.list !== false;

    if (inList) {
        cm.execCommand('indentMore');
        return;
    }

    if (cm.options.indentWithTabs) {
        cm.execCommand('insertTab');
    }
    else {
        var spaces = Array(cm.options.tabSize + 1).join(' ');
        cm.replaceSelection(spaces);
    }
};

CodeMirror.commands.shiftTabAndUnindentMarkdownList = function (cm) {
    var ranges = cm.listSelections();
    var pos = ranges[0].head;
    var eolState = cm.getStateAfter(pos.line);
    var inList = eolState.list !== false;

    if (inList) {
        cm.execCommand('indentLess');
        return;
    }

    if (cm.options.indentWithTabs) {
        cm.execCommand('insertTab');
    }
    else {
        var spaces = Array(cm.options.tabSize + 1).join(' ');
        cm.replaceSelection(spaces);
    }
};