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authorSteffen Kieß <kiess@ki4.de>2020-06-24 17:03:55 +0200
committerJohn MacFarlane <jgm@berkeley.edu>2020-06-24 09:59:43 -0700
commitc0b9c3125abab6081e0b54140900718c9b7a18d3 (patch)
treed9617d9946347f03c89bcebb4ff17fbe55a49766 /src/html.c
parent54b377278187f02621a60b3585de4ec02399234a (diff)
Fix handling of empty strings when creating XML/HTML output.
Diffstat (limited to 'src/html.c')
-rw-r--r--src/html.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/html.c b/src/html.c
index c69ffb6..962d795 100644
--- a/src/html.c
+++ b/src/html.c
@@ -276,8 +276,8 @@ static int S_render_node(cmark_node *node, cmark_event_type ev_type,
case CMARK_NODE_LINK:
if (entering) {
cmark_strbuf_puts(html, "<a href=\"");
- if ((options & CMARK_OPT_UNSAFE) ||
- !(_scan_dangerous_url(node->as.link.url))) {
+ if (node->as.link.url && ((options & CMARK_OPT_UNSAFE) ||
+ !(_scan_dangerous_url(node->as.link.url)))) {
houdini_escape_href(html, node->as.link.url,
strlen((char *)node->as.link.url));
}
@@ -295,8 +295,8 @@ static int S_render_node(cmark_node *node, cmark_event_type ev_type,
case CMARK_NODE_IMAGE:
if (entering) {
cmark_strbuf_puts(html, "<img src=\"");
- if ((options & CMARK_OPT_UNSAFE) ||
- !(_scan_dangerous_url(node->as.link.url))) {
+ if (node->as.link.url && ((options & CMARK_OPT_UNSAFE) ||
+ !(_scan_dangerous_url(node->as.link.url)))) {
houdini_escape_href(html, node->as.link.url,
strlen((char *)node->as.link.url));
}