add -i: move unquote_path() to Git.pm
[gitweb.git] / perl / Git.pm
index b2732822af0f34c6f7731df8a1a017d19f3e0508..cf7a7e6a516c4a2802908dd8ce7971fc52bb7e30 100644 (file)
@@ -61,7 +61,8 @@ =head1 SYNOPSIS
                 remote_refs prompt
                 get_tz_offset get_record
                 credential credential_read credential_write
-                temp_acquire temp_is_locked temp_release temp_reset temp_path);
+                temp_acquire temp_is_locked temp_release temp_reset temp_path
+                unquote_path);
 
 
 =head1 DESCRIPTION
@@ -1438,6 +1439,94 @@ sub END {
 
 } # %TEMP_* Lexical Context
 
+=item prefix_lines ( PREFIX, STRING [, STRING... ])
+
+Prefixes lines in C<STRING> with C<PREFIX>.
+
+=cut
+
+sub prefix_lines {
+       my $prefix = shift;
+       my $string = join("\n", @_);
+       $string =~ s/^/$prefix/mg;
+       return $string;
+}
+
+=item unquote_path ( PATH )
+
+Unquote a quoted path containing c-escapes as returned by ls-files etc.
+when not using -z or when parsing the output of diff -u.
+
+=cut
+
+{
+       my %cquote_map = (
+               "b" => chr(8),
+               "t" => chr(9),
+               "n" => chr(10),
+               "v" => chr(11),
+               "f" => chr(12),
+               "r" => chr(13),
+               "\\" => "\\",
+               "\042" => "\042",
+       );
+
+       sub unquote_path {
+               local ($_) = @_;
+               my ($retval, $remainder);
+               if (!/^\042(.*)\042$/) {
+                       return $_;
+               }
+               ($_, $retval) = ($1, "");
+               while (/^([^\\]*)\\(.*)$/) {
+                       $remainder = $2;
+                       $retval .= $1;
+                       for ($remainder) {
+                               if (/^([0-3][0-7][0-7])(.*)$/) {
+                                       $retval .= chr(oct($1));
+                                       $_ = $2;
+                                       last;
+                               }
+                               if (/^([\\\042btnvfr])(.*)$/) {
+                                       $retval .= $cquote_map{$1};
+                                       $_ = $2;
+                                       last;
+                               }
+                               # This is malformed -- just return it as-is for now.
+                               return $_[0];
+                       }
+                       $_ = $remainder;
+               }
+               $retval .= $_;
+               return $retval;
+       }
+}
+
+=item get_comment_line_char ( )
+
+Gets the core.commentchar configuration value.
+The value falls-back to '#' if core.commentchar is set to 'auto'.
+
+=cut
+
+sub get_comment_line_char {
+       my $comment_line_char = config("core.commentchar") || '#';
+       $comment_line_char = '#' if ($comment_line_char eq 'auto');
+       $comment_line_char = '#' if (length($comment_line_char) != 1);
+       return $comment_line_char;
+}
+
+=item comment_lines ( STRING [, STRING... ])
+
+Comments lines following core.commentchar configuration.
+
+=cut
+
+sub comment_lines {
+       my $comment_line_char = get_comment_line_char;
+       return prefix_lines("$comment_line_char ", @_);
+}
+
 =back
 
 =head1 ERROR HANDLING