Markdown: Ignore leading whitespaces when getting heading and detect \#

Author: techee

Units/parser-markdown.r/simple-markdown.d/expected.tags

@@ -28,6 +28,7 @@ F	input.md	/^F$/;"	s	chapter:C	end:106	sectionMarker:-
 G	input.md	/^ G$/;"	s	chapter:C	end:109	sectionMarker:-
 H	input.md	/^  H$/;"	s	chapter:C	end:112	sectionMarker:-
 I	input.md	/^   I$/;"	s	chapter:C	end:128	sectionMarker:-
+C\\#	input.md	/^# C\\#$/;"	c	end:129	sectionMarker:#
 x	input.md	/^function x$/;"	f
 y	input.md	/^function y$/;"	f
 z	input.md	/^z()$/;"	f

Units/parser-markdown.r/simple-markdown.d/input.md

@@ -126,3 +126,4 @@ text
 - ignored
 -
 
+# C\#

parsers/markdown.c

@@ -137,6 +137,7 @@ static int makeSectionMarkdownTag (const vString* const name, const int kind, co
 static vString *get_heading(const int kind, const unsigned char *line,
 	const int line_len, bool *delimited)
 {
+	int pos = 0;
 	int start = kind + 1;
 	int end = line_len - 1;
 	vString *name = vStringNew();
@@ -145,7 +146,8 @@ static vString *get_heading(const int kind, const unsigned char *line,
 	Assert (line_len > start);
 
 	*delimited = false;
-	while (line[end] == line[0])
+	while (isspace(line[pos])) ++pos;
+	while (line[end] == line[pos] && end - 1 >= 0 && line[end - 1] != '\\')
 	{
 		--end;
 		*delimited = true;