From e49a19f5cacb447558f162014eb26b8c45b30941 Mon Sep 17 00:00:00 2001
From: Marijn Haverbeke <marijn@haverbeke.nl>
Date: Thu, 24 Aug 2017 16:16:24 +0200
Subject: [PATCH] Document CodeMirror.countColumn

Issue #4929
---
 doc/manual.html | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/manual.html b/doc/manual.html
index 758ccbcc..354194e6 100644
--- a/doc/manual.html
+++ b/doc/manual.html
@@ -2229,6 +2229,9 @@ editor.setOption("extraKeys", {
       various <a href="#event_change">event handlers</a>). The
       returned position will be the end of the changed
       range, <em>after</em> the change is applied.</dd>
+
+      <dt id="countColumn"><code><strong>CodeMirror.countColumn</strong>(line: string, index: number, tabSize: number) → number</code></dt>
+      <dd>Find the column position at a given string index using a given tabsize.</dd>
     </dl>
 </section>
 
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