commit 1ebb7ceb0d8d1e6a521913f38003908bc21bd571
from: Omar Polo <op@omarpolo.com>
date: Mon Jan 17 09:38:36 2022 UTC

fix parsing of invalid link lines

Links lines without an URL may crash Telescope if the emojify-link
option is enabled (which is by default.)  Since URLs are mandatory in
link lines, parse these invalid lines as empty text lines (lagrange
and phos parses them as text lines with "=>".)

thanks @aartaka for unknowingly helping finding this issue, see
https://github.com/omar-polo/phos/pull/5

commit - 2e44d6be3e7033f0206cd6584ff31953aedc76a9
commit + 1ebb7ceb0d8d1e6a521913f38003908bc21bd571
blob - 9c5b7240f6f131a06cbfd8cac472f04d3d6b95a2
blob + e772078332f5f233f43f5e6af086619664ed3d8f
--- parser_gemtext.c
+++ parser_gemtext.c
@@ -130,7 +130,7 @@ parse_link(struct parser *p, enum line_type t, const c
 	const char *url_start;
 
 	if (len <= 2)
-		return emit_line(p, t, NULL, NULL);
+		return emit_line(p, LINE_TEXT, NULL, NULL);
 	buf += 2;
 	len -= 2;
 
@@ -140,7 +140,7 @@ parse_link(struct parser *p, enum line_type t, const c
 	}
 
 	if (len == 0)
-		return emit_line(p, t, NULL, NULL);
+		return emit_line(p, LINE_TEXT, NULL, NULL);
 
 	url_start = buf;
 	while (len > 0 && !isspace(buf[0])) {