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-rw-r--r--lib/PublicInbox/Address.pm11
-rw-r--r--lib/PublicInbox/AddressPP.pm21
-rw-r--r--t/address.t33
3 files changed, 58 insertions, 7 deletions
diff --git a/lib/PublicInbox/Address.pm b/lib/PublicInbox/Address.pm
index f5af4c23..a090fa43 100644
--- a/lib/PublicInbox/Address.pm
+++ b/lib/PublicInbox/Address.pm
@@ -2,7 +2,9 @@
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 package PublicInbox::Address;
 use strict;
-use warnings;
+use v5.10.1;
+use parent 'Exporter';
+our @EXPORT_OK = qw(pairs);
 
 sub xs_emails {
         grep { defined } map { $_->address() } parse_email_addresses($_[0])
@@ -17,11 +19,18 @@ sub xs_names {
         } parse_email_addresses($_[0]);
 }
 
+sub xs_pairs { # for JMAP, RFC 8621 section 4.1.2.3
+        [ map { # LHS (name) may be undef
+                [ $_->phrase // $_->comment, $_->address ]
+        } parse_email_addresses($_[0]) ];
+}
+
 eval {
         require Email::Address::XS;
         Email::Address::XS->import(qw(parse_email_addresses));
         *emails = \&xs_emails;
         *names = \&xs_names;
+        *pairs = \&xs_pairs;
 };
 
 if ($@) {
diff --git a/lib/PublicInbox/AddressPP.pm b/lib/PublicInbox/AddressPP.pm
index c04de74b..6a3ae4fe 100644
--- a/lib/PublicInbox/AddressPP.pm
+++ b/lib/PublicInbox/AddressPP.pm
@@ -13,6 +13,7 @@ sub emails {
 }
 
 sub names {
+        # split by address and post-address comment
         my @p = split(/<?([^@<>]+)\@[\w\.\-]+>?\s*(\(.*?\))?(?:,\s*|\z)/,
                         $_[0]);
         my @ret;
@@ -35,4 +36,24 @@ sub names {
         @ret;
 }
 
+sub pairs { # for JMAP, RFC 8621 section 4.1.2.3
+        my ($s) = @_;
+        [ map {
+                my $addr = $_;
+                if ($s =~ s/\A\s*(.*?)\s*<\Q$addr\E>\s*(.*?)\s*(?:,|\z)// ||
+                    $s =~ s/\A\s*(.*?)\s*\Q$addr\E\s*(.*?)\s*(?:,|\z)//) {
+                        my ($phrase, $comment) = ($1, $2);
+                        $phrase =~ tr/\r\n\t / /s;
+                        $phrase =~ s/\A['"\s]*//;
+                        $phrase =~ s/['"\s]*\z//;
+                        $phrase =~ s/\s*<*\s*\z//;
+                        $phrase = undef if $phrase !~ /\S/;
+                        $comment = ($comment =~ /\((.*?)\)/) ? $1 : undef;
+                        [ $phrase // $comment, $addr ]
+                } else {
+                        ();
+                }
+        } emails($s) ];
+}
+
 1;
diff --git a/t/address.t b/t/address.t
index 0adcf46d..6aa94628 100644
--- a/t/address.t
+++ b/t/address.t
@@ -7,26 +7,40 @@ use_ok 'PublicInbox::Address';
 
 sub test_pkg {
         my ($pkg) = @_;
-        my $emails = \&{"${pkg}::emails"};
-        my $names = \&{"${pkg}::names"};
+        my $emails = $pkg->can('emails');
+        my $names = $pkg->can('names');
+        my $pairs = $pkg->can('pairs');
 
         is_deeply([qw(e@example.com e@example.org)],
                 [$emails->('User <e@example.com>, e@example.org')],
                 'address extraction works as expected');
 
+        is_deeply($pairs->('User <e@example.com>, e@example.org'),
+                        [[qw(User e@example.com)], [undef, 'e@example.org']],
+                "pair extraction works ($pkg)");
+
         is_deeply(['user@example.com'],
                 [$emails->('<user@example.com (Comment)>')],
                 'comment after domain accepted before >');
+        is_deeply($pairs->('<user@example.com (Comment)>'),
+                [[qw(Comment user@example.com)]], "comment as name ($pkg)");
 
-        my @names = $names->(
-                'User <e@e>, e@e, "John A. Doe" <j@d>, <x@x>, <y@x> (xyz), '.
-                'U Ser <u@x> (do not use)');
+        my $s = 'User <e@e>, e@e, "John A. Doe" <j@d>, <x@x>, <y@x> (xyz), '.
+                'U Ser <u@x> (do not use)';
+        my @names = $names->($s);
         is_deeply(\@names, ['User', 'e', 'John A. Doe', 'x', 'xyz', 'U Ser'],
                 'name extraction works as expected');
+        is_deeply($pairs->($s), [ [ 'User', 'e@e' ], [ undef, 'e@e' ],
+                        [ 'John A. Doe', 'j@d' ], [ undef, 'x@x' ],
+                        [ 'xyz', 'y@x' ], [ 'U Ser', 'u@x' ] ],
+                "pairs extraction works for $pkg");
 
         @names = $names->('"user@example.com" <user@example.com>');
         is_deeply(['user'], \@names,
                 'address-as-name extraction works as expected');
+        is_deeply($pairs->('"user@example.com" <user@example.com>'),
+                [ [ 'user@example.com', 'user@example.com' ] ],
+                "pairs for $pkg");
 
         {
                 my $backwards = 'u@example.com (John Q. Public)';
@@ -34,10 +48,17 @@ sub test_pkg {
                 is_deeply(\@names, ['John Q. Public'], 'backwards name OK');
                 my @emails = $emails->($backwards);
                 is_deeply(\@emails, ['u@example.com'], 'backwards emails OK');
+
+                is_deeply($pairs->($backwards),
+                        [ [ 'John Q. Public', 'u@example.com' ] ],
+                        "backwards pairs $pkg");
         }
 
-        @names = $names->('"Quote Unneeded" <user@example.com>');
+        $s = '"Quote Unneeded" <user@example.com>';
+        @names = $names->($s);
         is_deeply(['Quote Unneeded'], \@names, 'extra quotes dropped');
+        is_deeply($pairs->($s), [ [ 'Quote Unneeded', 'user@example.com' ] ],
+                "extra quotes dropped in pairs $pkg");
 
         my @emails = $emails->('Local User <user>');
         is_deeply([], \@emails , 'no address for local address');