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-rw-r--r--lib/PublicInbox/Linkify.pm15
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/PublicInbox/Linkify.pm b/lib/PublicInbox/Linkify.pm
index aa472cdb..71193bc2 100644
--- a/lib/PublicInbox/Linkify.pm
+++ b/lib/PublicInbox/Linkify.pm
@@ -15,7 +15,7 @@ use warnings;
 use Digest::SHA qw/sha1_hex/;
 
 my $SALT = rand;
-my $LINK_RE = qr{(\()?\b((?:ftps?|https?|nntps?|gopher)://
+my $LINK_RE = qr{([\('!])?\b((?:ftps?|https?|nntps?|gopher)://
                  [\@:\w\.-]+(?:/
                  (?:[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]*)
                  (?:\?[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]+)?
@@ -25,6 +25,14 @@ my $LINK_RE = qr{(\()?\b((?:ftps?|https?|nntps?|gopher)://
 
 sub new { bless {}, $_[0] }
 
+# try to distinguish paired punctuation chars from the URL itself
+# Maybe other languages/formats can be supported here, too...
+my %pairs = (
+        "(" => qr/(\)[\.,;\+]?)\z/, # Markdown (,), Ruby (+) (, for arrays)
+        "'" => qr/('[\.,;\+]?)\z/, # Perl / Ruby
+        "!" => qr/(![\.,;\+]?)\z/, # Perl / Ruby
+);
+
 sub linkify_1 {
         $_[1] =~ s^$LINK_RE^
                 my $beg = $1 || '';
@@ -35,9 +43,8 @@ sub linkify_1 {
                 # '.', ',' or ';' to denote the end of a statement;
                 # assume the intent was to end the statement/sentence
                 # in English
-                # Markdown compatibility:
-                if ($beg eq '(') {
-                        if ($url =~ s/(\)[\.,;]?)\z//) {
+                if (defined(my $re = $pairs{$beg})) {
+                        if ($url =~ s/$re//) {
                                 $end = $1;
                         }
                 } elsif ($url =~ s/([\.,;])\z//) {