Escape `~` in regexp with folding

Add tests for `~`

diff --git a/after/ftplugin/markdown.vim b/after/ftplugin/markdown.vim
index 84b6a4f57179bc93b1479ecc147fbd20b4997106..06a1583835a7468ddff46145005c1275c01a662e 100644 (file)
--- a/after/ftplugin/markdown.vim
+++ b/after/ftplugin/markdown.vim
@@ -54,7 +54,7 @@ else
             let l0 = getline(a:lnum-1)
         endif
         " keep track of fenced code blocks
-        if l0 =~ '````*' || l0 =~ '~~~~*'
+        if l0 =~ '````*' || l0 =~ '\~\~\~\~*'
             if b:fenced_block == 0
                 let b:fenced_block = 1
             elseif b:fenced_block == 1

diff --git a/test/folding-toc.vader b/test/folding-toc.vader
index a02f1c2c0dcc5d9eccc6ae18dafc76047ff560b3..950d8cd19a298482f88b59b06e883bc12f4a7532 100644 (file)
--- a/test/folding-toc.vader
+++ b/test/folding-toc.vader
@@ -29,7 +29,7 @@ echo "foo"
 
 ~~~~bash
 mkdir foo
-cd foo
+# comment in ~
 ~~~~
 
 ### chap 1.1.1
@@ -74,6 +74,7 @@ Execute (fold level):
   AssertEqual foldlevel(7), 1, '# some bash scripting'
   AssertEqual foldlevel(15), 1, '## chap 1.1'
   AssertEqual foldlevel(21), 2, 'mkdir foo'
+  AssertEqual foldlevel(22), 2, 'comment in ~'
   AssertEqual foldlevel(25), 2, '### chap 1.1.1'
   AssertEqual foldlevel(27), 3, '- dragons'
   AssertEqual foldlevel(30), 1, '# chap 2'