[nongnu] elpa/markdown-mode 0a7404a1c7 2/2: Merge pull request #776 from jrblevin/issue-774

[ELPA Syncer]

branch: elpa/markdown-mode
commit 0a7404a1c7b1916ca6e8408a6c8bad9125c846d2
Merge: 8dc04cc676 032fa56a89
Author: Shohei YOSHIDA <syohex@gmail.com>
Commit: GitHub <noreply@github.com>

    Merge pull request #776 from jrblevin/issue-774
    
    Don't allow space between label and text in reference link
---
 CHANGES.md             | 4 +++-
 markdown-mode.el       | 2 +-
 tests/markdown-test.el | 5 +++++
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index 5cd72d3b60..99cddab083 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,7 +3,8 @@
 *Under development*
 
 *   **Breaking changes:**
-    -   GNU Emacs 26.1 or later is required.
+    - GNU Emacs 26.1 or later is required.
+    - Don't allow space between label and text in reference link same as 
CommonMark [GH-774][]
 
 *   New Features:
     - Introduce `markdown-fontify-whole-heading-line` variable for highlighting
@@ -50,6 +51,7 @@
   [gh-766]: https://github.com/jrblevin/markdown-mode/issues/766
   [gh-768]: https://github.com/jrblevin/markdown-mode/pull/768
   [gh-771]: https://github.com/jrblevin/markdown-mode/issues/771
+  [gh-774]: https://github.com/jrblevin/markdown-mode/issues/774
 
 
 # Markdown Mode 2.5
diff --git a/markdown-mode.el b/markdown-mode.el
index 6422bef264..521e191aba 100644
--- a/markdown-mode.el
+++ b/markdown-mode.el
@@ -704,7 +704,7 @@ Group 7 matches the title (optional).
 Group 8 matches the closing parenthesis.")
 
 (defconst markdown-regex-link-reference
-  "\\(?1:!\\)?\\(?2:\\[\\)\\(?3:[^]^][^]]*\\|\\)\\(?4:\\]\\)[ 
]?\\(?5:\\[\\)\\(?6:[^]]*?\\)\\(?7:\\]\\)"
+  
"\\(?1:!\\)?\\(?2:\\[\\)\\(?3:[^]^][^]]*\\|\\)\\(?4:\\]\\)\\(?5:\\[\\)\\(?6:[^]]*?\\)\\(?7:\\]\\)"
   "Regular expression for a reference link [text][id].
 Group 1 matches the leading exclamation point (optional).
 Group 2 matches the opening square bracket for the link text.
diff --git a/tests/markdown-test.el b/tests/markdown-test.el
index 8ea01c9107..b5c26a7eb2 100644
--- a/tests/markdown-test.el
+++ b/tests/markdown-test.el
@@ -5407,6 +5407,11 @@ http://example.com \"title\"  )
     (goto-char 13)
     (should (markdown-link-p))))
 
+(ert-deftest test-markdown-link/link-p-2 ()
+  "Don't allow space between label and text in reference link."
+  (markdown-test-string "[one] [two]"
+    (should-not (markdown-link-p))))
+
 ;;; Wiki link tests:
 
 (ert-deftest test-markdown-wiki-link/file-local-variables ()