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Fix issue of UTF-8 belows the autolinked email address. #463

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Fix issue of UTF-8 belows the autolinked email address. #463

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2 changes: 1 addition & 1 deletion ext/redcarpet/autolink.c
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Original file line number Diff line number Diff line change
Expand Up @@ -230,7 +230,7 @@ sd_autolink__email(
for (link_end = 0; link_end < size; ++link_end) {
uint8_t c = data[link_end];

if (isalnum(c))
if (isalnum(c) && c < 0x7f)
continue;

if (c == '@')
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6 changes: 6 additions & 0 deletions test/markdown_test.rb
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Expand Up @@ -149,6 +149,12 @@ def test_whitespace_after_urls
assert_equal expected, output
end

def test_auto_linked_email_utf8_issue
output = render("a@b.c」\nd@example.coü", with: [:autolink])
expected = %{<p><a href="mailto:a@b.c">a@b.c</a>」\n<a href="mailto:d@example.co">d@example.co</a>ü</p>\n}
assert_equal expected, output
end

def test_memory_leak_when_parsing_char_links
render(<<-leaks.strip_heredoc)
2. Identify the wild-type cluster and determine all clusters
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