Added table formatting for Pad docs exported as .md

www/pad/export.js

@@ -96,7 +96,29 @@ define([
             if (ext === ".md") {
                 var md = Turndown({
                     headingStyle: 'atx'
-                }).turndown(toExport);
+                }).addRule('table', {
+                filter: ['tr'],
+                replacement: function (content, node) {
+                    var indexOf = Array.prototype.indexOf;
+                    var index = indexOf.call(node.parentNode.childNodes, node);
+                    var rowContent = node.innerHTML.replace(/<td>|<\/td>/g, '').split('<br>')
+                    rowContent[0] = `|${rowContent[0]}`
+                    var row = ''
+                    var rowLength = rowContent.filter(Boolean).length
+                    for (var i =0; i < rowLength; i++) {
+                        var cell = rowContent[i]
+                        cell += ' |'
+                        row += cell
+                    }                    
+                    var newRow = row.concat('\n')
+                    if (index === 0) {
+                        var separator = '|-'
+                        newRow += `${separator.repeat(rowLength)}\n`
+                    }
+                    return newRow
+                }})
+                .turndown(toExport);
+                console.log(md)
                 var mdBlob = new Blob([md], {
                     type: 'text/markdown;charset=utf-8'
                 });