From 3bd328e68894a7819aa26e2325d7984eaa3959e0 Mon Sep 17 00:00:00 2001
From: Florrie <towerofnix@gmail.com>
Date: Wed, 15 Jul 2020 22:08:34 -0300
Subject: don't include ANSI escape codes in measureColumns

This allows pretty much any code based around measureColumns
(e.g. buttons, labels, word-wrapping code) to handle ANSI-formatted
text without any miscalculated measurements.
---
 util/ansi.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'util')

diff --git a/util/ansi.js b/util/ansi.js
index ac511ed..f921349 100644
--- a/util/ansi.js
+++ b/util/ansi.js
@@ -153,7 +153,12 @@ const ansi = {
   },
 
   measureColumns(text) {
-    // Returns the number of columns the given text takes.
+    // Returns the number of columns the given text takes. Accounts for escape
+    // codes (by not including them in the returned width).
+
+    if (text.includes(ESC)) {
+      text = text.replace(new RegExp(ESC + '\\[\\??[0-9]*.', 'g'), '')
+    }
 
     return wcwidth(text)
   },
-- 
cgit 1.3.0-6-gf8a5