Updated markdown to add support for === instead of just ### for headers. Added upstream warning.

git-svn-id: http://code.elgg.org/elgg/trunk@9035 36083f99-b078-4883-b0ff-0f9b5a30f544

2 files changed, 8 insertions, 2 deletions

diff --git a/vendors/markdown/UPSTREAM_WARNING b/vendors/markdown/UPSTREAM_WARNING
new file mode 100644
index 000000000..d0a664f2a
--- /dev/null
+++ b/vendors/markdown/UPSTREAM_WARNING
@@ -0,0 +1,5 @@
+This file has been modified from its upstream. When upgrading, be sure to check the following mods:
+
+* Headers can be created with =, ==, etc instead of just #, ##.
+* @todo Autolink (f|ht)tp(s)?://link.com.
+* @todo GFM improvement for newlines:  http://github.github.com/github-flavored-markdown/
\ No newline at end of file
diff --git a/vendors/markdown/markdown.php b/vendors/markdown/markdown.php
index ee3dddbf9..3f1f3a715 100755
--- a/vendors/markdown/markdown.php
+++ b/vendors/markdown/markdown.php
@@ -2246,12 +2246,13 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		#	...
 		#	###### Header 6   {#header2}
 		#
+		#	@note Added for Elgg: You can use = in place of hashes for atx-style.
 		$text = preg_replace_callback('{
-				^(\#{1,6})	# $1 = string of #\'s
+				^([\#=]{1,6})	# $1 = string of #\'s
 				[ ]*
 				(.+?)		# $2 = Header text
 				[ ]*
-				\#*			# optional closing #\'s (not counted)
+				[\#=]*			# optional closing #\'s (not counted)
 				(?:[ ]+\{\#([-_:a-zA-Z0-9]+)\})? # id attribute
 				[ ]*
 				\n+