Add extensions to parse document as well as file

Author: 0xTim

Sources/cmark/blocks.c

@@ -666,6 +666,11 @@ cmark_node *cmark_parse_file(FILE *f, int options) {
 
 cmark_node *cmark_parse_document(const char *buffer, size_t len, int options) {
   cmark_parser *parser = cmark_parser_new(options);
+  cmark_parser_attach_syntax_extension(parser, create_autolink_extension());
+  cmark_parser_attach_syntax_extension(parser, create_strikethrough_extension());
+  cmark_parser_attach_syntax_extension(parser, create_table_extension());
+  cmark_parser_attach_syntax_extension(parser, create_tagfilter_extension());
+  cmark_parser_attach_syntax_extension(parser, create_tasklist_extension());
   cmark_node *document;
 
   S_parser_feed(parser, (const unsigned char *)buffer, len, true);