Execute the given C<COMMAND> in the same way as command_output_pipe()
does but return both an input pipe filehandle and an output pipe filehandle.
-The function will return return C<($pid, $pipe_in, $pipe_out, $ctx)>.
+The function will return C<($pid, $pipe_in, $pipe_out, $ctx)>.
See C<command_close_bidi_pipe()> for details.
=cut
} # %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 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