merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373

Merge commit '1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5' as 'third_party/git'

1 files changed, 280 insertions, 0 deletions

diff --git a/third_party/git/perl/FromCPAN/Mail/Address.pm b/third_party/git/perl/FromCPAN/Mail/Address.pm
new file mode 100644
index 000000000000..683d490b2b0b
--- /dev/null
+++ b/third_party/git/perl/FromCPAN/Mail/Address.pm
@@ -0,0 +1,280 @@
+# Copyrights 1995-2018 by [Mark Overmeer].
+#  For other contributors see ChangeLog.
+# See the manual pages for details on the licensing terms.
+# Pod stripped from pm file by OODoc 2.02.
+# This code is part of the bundle MailTools.  Meta-POD processed with
+# OODoc into POD and HTML manual-pages.  See README.md for Copyright.
+# Licensed under the same terms as Perl itself.
+
+package Mail::Address;
+use vars '$VERSION';
+$VERSION = '2.20';
+
+use strict;
+
+use Carp;
+
+# use locale;   removed in version 1.78, because it causes taint problems
+
+sub Version { our $VERSION }
+
+
+
+# given a comment, attempt to extract a person's name
+sub _extract_name
+{   # This function can be called as method as well
+    my $self = @_ && ref $_[0] ? shift : undef;
+
+    local $_ = shift
+        or return '';
+
+    # Using encodings, too hard. See Mail::Message::Field::Full.
+    return '' if m/\=\?.*?\?\=/;
+
+    # trim whitespace
+    s/^\s+//;
+    s/\s+$//;
+    s/\s+/ /;
+
+    # Disregard numeric names (e.g. 123456.1234@compuserve.com)
+    return "" if /^[\d ]+$/;
+
+    s/^\((.*)\)$/$1/; # remove outermost parenthesis
+    s/^"(.*)"$/$1/;   # remove outer quotation marks
+    s/\(.*?\)//g;     # remove minimal embedded comments
+    s/\\//g;          # remove all escapes
+    s/^"(.*)"$/$1/;   # remove internal quotation marks
+    s/^([^\s]+) ?, ?(.*)$/$2 $1/; # reverse "Last, First M." if applicable
+    s/,.*//;
+
+    # Change casing only when the name contains only upper or only
+    # lower cased characters.
+    unless( m/[A-Z]/ && m/[a-z]/ )
+    {   # Set the case of the name to first char upper rest lower
+        s/\b(\w+)/\L\u$1/igo;  # Upcase first letter on name
+        s/\bMc(\w)/Mc\u$1/igo; # Scottish names such as 'McLeod'
+        s/\bo'(\w)/O'\u$1/igo; # Irish names such as 'O'Malley, O'Reilly'
+        s/\b(x*(ix)?v*(iv)?i*)\b/\U$1/igo; # Roman numerals, eg 'Level III Support'
+    }
+
+    # some cleanup
+    s/\[[^\]]*\]//g;
+    s/(^[\s'"]+|[\s'"]+$)//g;
+    s/\s{2,}/ /g;
+
+    $_;
+}
+
+sub _tokenise
+{   local $_ = join ',', @_;
+    my (@words,$snippet,$field);
+
+    s/\A\s+//;
+    s/[\r\n]+/ /g;
+
+    while ($_ ne '')
+    {   $field = '';
+        if(s/^\s*\(/(/ )    # (...)
+        {   my $depth = 0;
+
+     PAREN: while(s/^(\(([^\(\)\\]|\\.)*)//)
+            {   $field .= $1;
+                $depth++;
+                while(s/^(([^\(\)\\]|\\.)*\)\s*)//)
+                {   $field .= $1;
+                    last PAREN unless --$depth;
+	            $field .= $1 if s/^(([^\(\)\\]|\\.)+)//;
+                }
+            }
+
+            carp "Unmatched () '$field' '$_'"
+                if $depth;
+
+            $field =~ s/\s+\Z//;
+            push @words, $field;
+
+            next;
+        }
+
+        if( s/^("(?:[^"\\]+|\\.)*")\s*//       # "..."
+         || s/^(\[(?:[^\]\\]+|\\.)*\])\s*//    # [...]
+         || s/^([^\s()<>\@,;:\\".[\]]+)\s*//
+         || s/^([()<>\@,;:\\".[\]])\s*//
+          )
+        {   push @words, $1;
+            next;
+        }
+
+        croak "Unrecognised line: $_";
+    }
+
+    push @words, ",";
+    \@words;
+}
+
+sub _find_next
+{   my ($idx, $tokens, $len) = @_;
+
+    while($idx < $len)
+    {   my $c = $tokens->[$idx];
+        return $c if $c eq ',' || $c eq ';' || $c eq '<';
+        $idx++;
+    }
+
+    "";
+}
+
+sub _complete
+{   my ($class, $phrase, $address, $comment) = @_;
+
+    @$phrase || @$comment || @$address
+       or return undef;
+
+    my $o = $class->new(join(" ",@$phrase), join("",@$address), join(" ",@$comment));
+    @$phrase = @$address = @$comment = ();
+    $o;
+}
+
+#------------
+
+sub new(@)
+{   my $class = shift;
+    bless [@_], $class;
+}
+
+
+sub parse(@)
+{   my $class = shift;
+    my @line  = grep {defined} @_;
+    my $line  = join '', @line;
+
+    my (@phrase, @comment, @address, @objs);
+    my ($depth, $idx) = (0, 0);
+
+    my $tokens  = _tokenise @line;
+    my $len     = @$tokens;
+    my $next    = _find_next $idx, $tokens, $len;
+
+    local $_;
+    for(my $idx = 0; $idx < $len; $idx++)
+    {   $_ = $tokens->[$idx];
+
+        if(substr($_,0,1) eq '(') { push @comment, $_ }
+        elsif($_ eq '<')    { $depth++ }
+        elsif($_ eq '>')    { $depth-- if $depth }
+        elsif($_ eq ',' || $_ eq ';')
+        {   warn "Unmatched '<>' in $line" if $depth;
+            my $o = $class->_complete(\@phrase, \@address, \@comment);
+            push @objs, $o if defined $o;
+            $depth = 0;
+            $next = _find_next $idx+1, $tokens, $len;
+        }
+        elsif($depth)       { push @address, $_ }
+        elsif($next eq '<') { push @phrase,  $_ }
+        elsif( /^[.\@:;]$/ || !@address || $address[-1] =~ /^[.\@:;]$/ )
+        {   push @address, $_ }
+        else
+        {   warn "Unmatched '<>' in $line" if $depth;
+            my $o = $class->_complete(\@phrase, \@address, \@comment);
+            push @objs, $o if defined $o;
+            $depth = 0;
+            push @address, $_;
+        }
+    }
+    @objs;
+}
+
+#------------
+
+sub phrase  { shift->set_or_get(0, @_) }
+sub address { shift->set_or_get(1, @_) }
+sub comment { shift->set_or_get(2, @_) }
+
+sub set_or_get($)
+{   my ($self, $i) = (shift, shift);
+    @_ or return $self->[$i];
+
+    my $val = $self->[$i];
+    $self->[$i] = shift if @_;
+    $val;
+}
+
+
+my $atext = '[\-\w !#$%&\'*+/=?^`{|}~]';
+sub format
+{   my @addrs;
+
+    foreach (@_)
+    {   my ($phrase, $email, $comment) = @$_;
+        my @addr;
+
+        if(defined $phrase && length $phrase)
+        {   push @addr
+              , $phrase =~ /^(?:\s*$atext\s*)+$/o ? $phrase
+              : $phrase =~ /(?<!\\)"/             ? $phrase
+              :                                    qq("$phrase");
+
+            push @addr, "<$email>"
+                if defined $email && length $email;
+        }
+        elsif(defined $email && length $email)
+        {   push @addr, $email;
+        }
+
+        if(defined $comment && $comment =~ /\S/)
+        {   $comment =~ s/^\s*\(?/(/;
+            $comment =~ s/\)?\s*$/)/;
+        }
+
+        push @addr, $comment
+            if defined $comment && length $comment;
+
+        push @addrs, join(" ", @addr)
+            if @addr;
+    }
+
+    join ", ", @addrs;
+}
+
+#------------
+
+sub name
+{   my $self   = shift;
+    my $phrase = $self->phrase;
+    my $addr   = $self->address;
+
+    $phrase    = $self->comment
+        unless defined $phrase && length $phrase;
+
+    my $name   = $self->_extract_name($phrase);
+
+    # first.last@domain address
+    if($name eq '' && $addr =~ /([^\%\.\@_]+([\._][^\%\.\@_]+)+)[\@\%]/)
+    {   ($name  = $1) =~ s/[\._]+/ /g;
+	$name   = _extract_name $name;
+    }
+
+    if($name eq '' && $addr =~ m#/g=#i)    # X400 style address
+    {   my ($f) = $addr =~ m#g=([^/]*)#i;
+	my ($l) = $addr =~ m#s=([^/]*)#i;
+	$name   = _extract_name "$f $l";
+    }
+
+    length $name ? $name : undef;
+}
+
+
+sub host
+{   my $addr = shift->address || '';
+    my $i    = rindex $addr, '@';
+    $i >= 0 ? substr($addr, $i+1) : undef;
+}
+
+
+sub user
+{   my $addr = shift->address || '';
+    my $i    = rindex $addr, '@';
+    $i >= 0 ? substr($addr,0,$i) : $addr;
+}
+
+1;