From 659c34f7c59fe98566c06ddf19df940f213525b6 Mon Sep 17 00:00:00 2001
From: Jakub Vrana <jakub@vrana.cz>
Date: Sun, 6 May 2018 19:14:54 +0200
Subject: [PATCH] Improve enum parsing

---
 adminer/static/editing.js | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/adminer/static/editing.js b/adminer/static/editing.js
index 6a172496..dd5812f4 100644
--- a/adminer/static/editing.js
+++ b/adminer/static/editing.js
@@ -395,8 +395,7 @@ function editingLengthFocus() {
 	var td = this.parentNode;
 	if (/(enum|set)$/.test(selectValue(td.previousSibling.firstChild))) {
 		var edit = qs('#enum-edit');
-		var val = this.value;
-		edit.value = (/^'.+'$/.test(val) ? val.substr(1, val.length - 2).replace(/','/g, "\n").replace(/''/g, "'") : val); //! doesn't handle 'a'',''b' correctly
+		edit.value = enumValues(this.value);
 		td.appendChild(edit);
 		this.style.display = 'none';
 		edit.style.display = 'inline';
@@ -404,6 +403,25 @@ function editingLengthFocus() {
 	}
 }
 
+/** Get enum values
+* @param string
+* @return string values separated by newlines
+*/
+function enumValues(s) {
+	var re = /(^|,)\s*'(([^\\']|\\.|'')*)'\s*/g;
+	var result = [];
+	var offset = 0;
+	var match;
+	while (match = re.exec(s)) {
+		if (offset != match.index) {
+			break;
+		}
+		result.push(match[2].replace(/'(')|\\(.)/g, '$1$2'));
+		offset += match[0].length;
+	}
+	return (offset == s.length ? result.join('\n') : s);
+}
+
 /** Finish editing of enum or set
 * @this HTMLTextAreaElement
 */