From 8ad16ac4d9c9345e0634e617d3bed874a24c6a4e Mon Sep 17 00:00:00 2001
From: Alex Kocharin <alex@kocharin.ru>
Date: Wed, 25 Nov 2020 20:32:58 +0300
Subject: [PATCH] Allow EOL in processing instructions

same fix as in https://github.com/commonmark/commonmark.js/issues/196
---
 CHANGELOG.md                                    |  1 +
 lib/common/html_re.js                           |  2 +-
 test/fixtures/markdown-it/commonmark_extras.txt | 10 ++++++++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0240c6a..ca95c58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `[](url\ xxx)` is no longer a valid link.
 - Fix performance issues when parsing links (#732, #734), backticks, (#733, #736),
   emphases (#735), and autolinks (#737).
+- Allow newline in `<? ... ?>` in an inline context.
 
 
 ## [12.0.2] - 2020-10-23
diff --git a/lib/common/html_re.js b/lib/common/html_re.js
index 4fd9369..df81906 100644
--- a/lib/common/html_re.js
+++ b/lib/common/html_re.js
@@ -16,7 +16,7 @@ var open_tag    = '<[A-Za-z][A-Za-z0-9\\-]*' + attribute + '*\\s*\\/?>';
 
 var close_tag   = '<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>';
 var comment     = '<!---->|<!--(?:-?[^>-])(?:-?[^-])*-->';
-var processing  = '<[?].*?[?]>';
+var processing  = '<[?][\\s\\S]*?[?]>';
 var declaration = '<![A-Z]+\\s+[^>]*>';
 var cdata       = '<!\\[CDATA\\[[\\s\\S]*?\\]\\]>';
 
diff --git a/test/fixtures/markdown-it/commonmark_extras.txt b/test/fixtures/markdown-it/commonmark_extras.txt
index 56b4a31..8e34e58 100644
--- a/test/fixtures/markdown-it/commonmark_extras.txt
+++ b/test/fixtures/markdown-it/commonmark_extras.txt
@@ -286,6 +286,16 @@ Escaped space is not allowed in link destination, commonmark/CommonMark#493.
 .
 
 
+Allow EOL in processing instructions, commonmark/commonmark.js#196.
+.
+a <?
+?>
+.
+<p>a <?
+?></p>
+.
+
+
 Coverage. Directive can terminate paragraph.
 .
 a