-
- foreach my $line (map {split /\n/} (ref $val eq 'ARRAY') ? @$val : ($val||''))
- {
- # XXX: This should become a real parser, ? la Text::ParseWords.
- $line =~ s/^\s+//;
- $line =~ s/\s+$//;
- push @words, split /\s*,\s*/, $line;
+ 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;
+ $quote = "'";
+ }
+ if ($strip) {
+ $quoted =~ s/\\([\\$quote])/$1/g if $quote;
+ push @words, $quoted;
+ } else {
+ push @words, "$quote$quoted$quote";
+ }
+ }