[gobject-introspection] Accept trailing whitespace at the start of a comment block

[Colin Walters <walters src gnome org>]

commit 2e8e7530fc66b3222525a236a395b8d24eecf404
Author: Colin Walters <walters verbum org>
Date:   Tue Oct 19 08:45:13 2010 -0400

    Accept trailing whitespace at the start of a comment block
    
    Might as well be liberal here, as long as we have a test case.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=631690

 giscanner/annotationparser.py             |    8 +++-----
 tests/scanner/Annotation-1.0-expected.gir |    7 +++++++
 tests/scanner/annotation.c                |   11 +++++++++++
 tests/scanner/annotation.h                |    3 +++
 4 files changed, 24 insertions(+), 5 deletions(-)
---
diff --git a/giscanner/annotationparser.py b/giscanner/annotationparser.py
index 5e45e5d..03a8883 100644
--- a/giscanner/annotationparser.py
+++ b/giscanner/annotationparser.py
@@ -25,9 +25,6 @@ import re
 from . import message
 from .odict import odict
 
-# All gtk-doc comments needs to start with this:
-_COMMENT_HEADER = '*\n '
-
 # Tags - annotations applyed to comment blocks
 TAG_VFUNC = 'virtual'
 TAG_SINCE = 'since'
@@ -405,6 +402,7 @@ class DocOption(object):
 
 
 class AnnotationParser(object):
+    COMMENT_HEADER_RE = re.compile(r'^\*[ \t]*\n ')
     WHITESPACE_RE = re.compile(r'^\s*$')
     ASCII_TEXT_RE = re.compile(r'\s*[A-Za-z]+')
     OPTION_RE = re.compile(r'\([A-Za-z]+[^(]*\)')
@@ -434,9 +432,9 @@ class AnnotationParser(object):
         #
         comment, filename, lineno = cmt
         comment = comment.lstrip()
-        if not comment.startswith(_COMMENT_HEADER):
+        if not self.COMMENT_HEADER_RE.search(comment):
             return
-        comment = comment[len(_COMMENT_HEADER):]
+        comment = self.COMMENT_HEADER_RE.sub('', comment, count=1)
         comment = comment.strip()
         if not comment.startswith('* '):
             return
diff --git a/tests/scanner/Annotation-1.0-expected.gir b/tests/scanner/Annotation-1.0-expected.gir
index 050d888..6dcb23c 100644
--- a/tests/scanner/Annotation-1.0-expected.gir
+++ b/tests/scanner/Annotation-1.0-expected.gir
@@ -737,6 +737,13 @@ detection, and fixing it via annotations.</doc>
         </parameter>
       </parameters>
     </function>
+    <function name="space_after_comment_bug631690"
+              c:identifier="annotation_space_after_comment_bug631690">
+      <doc xml:whitespace="preserve">Explicitly test having a space after the ** here.</doc>
+      <return-value transfer-ownership="none">
+        <type name="none" c:type="void"/>
+      </return-value>
+    </function>
     <function name="string_array_length"
               c:identifier="annotation_string_array_length">
       <return-value transfer-ownership="none">
diff --git a/tests/scanner/annotation.c b/tests/scanner/annotation.c
index 280a9e5..4c25178 100644
--- a/tests/scanner/annotation.c
+++ b/tests/scanner/annotation.c
@@ -771,3 +771,14 @@ annotation_test_parsing_bug630862 (void)
 {
   return NULL;
 }
+
+
+/** 
+ * annotation_space_after_comment_bug631690:
+ *
+ * Explicitly test having a space after the ** here.
+ */
+void
+annotation_space_after_comment_bug631690 (void)
+{
+}
diff --git a/tests/scanner/annotation.h b/tests/scanner/annotation.h
index ef05ddb..e315af5 100644
--- a/tests/scanner/annotation.h
+++ b/tests/scanner/annotation.h
@@ -158,5 +158,8 @@ void    annotation_ptr_array (GPtrArray *array);
 
 GObject  * annotation_test_parsing_bug630862 (void);
 
+void annotation_space_after_comment_bug631690 (void);
+
+
 #endif /* __ANNOTATION_OBJECT_H__ */