- my ($val) = @_;
- my ($word, @words);
- my @values = ref $val eq 'ARRAY' ? @$val : $val;
-
- foreach my $line (map {split /\n/} @values) {
- # XXX: This should become a real parser, à la Text::ParseWords.
- $line =~ s/^\s+//;
- $line =~ s/\s+$//;
- my ( $a, $b ) = split /,/, $line, 2;
-
- while ($a) {
- no warnings 'uninitialized';
- if ( $a =~ /^'/ ) {
- my $s = $a;
- while ( $a !~ /'$/ || ( $a !~ /(\\\\)+'$/
- && $a =~ /(\\)+'$/ )) {
- ( $a, $b ) = split /,/, $b, 2;
- $s .= ',' . $a;
- }
- push @words, $s;
+ my ($val, $strip) = @_;
+ my @words;
+ my @values = map {split /\n/} (ref $val eq 'ARRAY' ? @$val : $val);
+
+ foreach my $line (@values) {
+ while ($line =~ /\S/) {
+ $line =~ s/^
+ \s* # Trim leading whitespace
+ (?:
+ (") # Quoted string
+ ((?>[^\\"]*(?:\\.[^\\"]*)*))"
+ |
+ (') # Single-quoted string
+ ((?>[^\\']*(?:\\.[^\\']*)*))'
+ |
+ q\{(.*?)\} # A perl-ish q{} string; this does
+ # no paren balancing, however, and
+ # only exists for back-compat
+ |
+ (.*?) # Anything else, until the next comma
+ )
+ \s* # Trim trailing whitespace
+ (?:
+ \Z # Finish at end-of-line
+ |
+ , # Or a comma
+ )
+ //xs or last; # There should be no way this match
+ # fails, but add a failsafe to
+ # prevent infinite-looping if it
+ # somehow does.
+ my ($quote, $quoted) = ($1 ? ($1, $2) : $3 ? ($3, $4) : ('', $5 || $6));
+ # Only unquote the quote character, or the backslash -- and
+ # only if we were originally quoted..
+ if ($5) {
+ $quoted =~ s/([\\'])/\\$1/g;
+ $quote = "'";