Fix Rust doc comments.

1 files changed, 10 insertions, 1 deletions

diff --git a/pygments/lexers/rust.py b/pygments/lexers/rust.py
index 354ab2be..656c289a 100644
--- a/pygments/lexers/rust.py
+++ b/pygments/lexers/rust.py
@@ -32,8 +32,11 @@ class RustLexer(RegexLexer):
             # Whitespace and Comments
             (r'\n', Whitespace),
             (r'\s+', Whitespace),
-            (r'//[/!](.*?)\n', Comment.Doc),
+            (r'//!.*?\n', String.Doc),
+            (r'///(\n|[^/].*?\n)', String.Doc),
             (r'//(.*?)\n', Comment.Single),
+            (r'/\*\*(\n|[^/*])', String.Doc, 'doccomment'),
+            (r'/\*!', String.Doc, 'doccomment'),
             (r'/\*', Comment.Multiline, 'comment'),
 
             # Macro parameters
@@ -136,6 +139,12 @@ class RustLexer(RegexLexer):
             (r'\*/', Comment.Multiline, '#pop'),
             (r'[*/]', Comment.Multiline),
         ],
+        'doccomment': [
+            (r'[^*/]+', String.Doc),
+            (r'/\*', String.Doc, '#push'),
+            (r'\*/', String.Doc, '#pop'),
+            (r'[*/]', String.Doc),
+        ],
         'number_lit': [
             (r'[ui](8|16|32|64|size)', Keyword, '#pop'),
             (r'f(32|64)', Keyword, '#pop'),