From d25466fa8fbead5d006d49b3db890c2c96965408 Mon Sep 17 00:00:00 2001
From: Haralan Dobrev <hkdobrev@gmail.com>
Date: Thu, 6 Feb 2014 10:56:44 +0200
Subject: [PATCH] Allow a single space in the code span delimiter

Fix #89 properly.
---
 Parsedown.php             |  4 ++--
 tests/data/code_span.html |  6 +++++-
 tests/data/code_span.md   | 10 +++++++++-
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/Parsedown.php b/Parsedown.php
index 3f74776..e140121 100755
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -1028,9 +1028,9 @@ class Parsedown
 
                 case '`':
 
-                    if (preg_match('/^(`+)[ ]*(.+?)[ ]*\1(?!`)/', $text, $matches))
+                    if (preg_match('/^(`+)([ ]?)(.+?)\2\1(?!`)/', $text, $matches))
                     {
-                        $element_text = $matches[2];
+                        $element_text = $matches[3];
                         $element_text = htmlspecialchars($element_text, ENT_NOQUOTES, 'UTF-8');
 
                         $markup .= '<code>'.$element_text.'</code>';
diff --git a/tests/data/code_span.html b/tests/data/code_span.html
index 351610a..d3ff49a 100644
--- a/tests/data/code_span.html
+++ b/tests/data/code_span.html
@@ -2,4 +2,8 @@
 <p><code>this is also a codespan</code> trailing text</p>
 <p><code>and look at this one!</code></p>
 <p>single backtick in a code span: <code>`</code></p>
-<p>backtick-delimited string in a code span: <code>`foo`</code></p>
\ No newline at end of file
+<p>backtick-delimited string in a code span: <code>`foo`</code></p>
+<p>Trim spaces: <code>code</code></p>
+<p>Multiple spaces: <code> like that </code></p>
+<p>Unequal number of spaces: <code> like that  </code></p>
+<p>Space only at the beginning: <code> code</code></p>
\ No newline at end of file
diff --git a/tests/data/code_span.md b/tests/data/code_span.md
index 0654262..6db4222 100644
--- a/tests/data/code_span.md
+++ b/tests/data/code_span.md
@@ -6,4 +6,12 @@ a `code span`
 
 single backtick in a code span: `` ` ``
 
-backtick-delimited string in a code span: `` `foo` ``
\ No newline at end of file
+backtick-delimited string in a code span: `` `foo` ``
+
+Trim spaces: `` code ``
+
+Multiple spaces: ``  like that  ``
+
+Unequal number of spaces: ``  like that   ``
+
+Space only at the beginning: `` code``
\ No newline at end of file