ported r260 from hidra branch: moved eval to parse_format.pm where it

[webpac] / parse_format.pm

diff --git a/parse_format.pm b/parse_format.pm
index 9123832..ca25b06 100644 (file)
--- a/parse_format.pm
+++ b/parse_format.pm
@@ -55,6 +55,9 @@ sub parse_iso_format {
 
                my $f = $format;
 
+               my $eval;
+               $eval = $1 if ($f =~ s/^eval{([^}]+)}//);
+
                if ($f =~ s/^([^\d]+)//) {
                        if ($f) {       # there is more to parse
                                push @fmt,$1;
@@ -111,6 +114,9 @@ sub parse_iso_format {
                        }
                }
                push @fmt,'' if ($#fmt % 3 != 0);       # add empty suffix
+
+               $cache->{format_eval}->{$format} = $eval; # store eval string (if any)
+
                $cache->{format}->{$format} = \@fmt;
                
 #              print STDERR "storing format for '$format': [",join("|",@fmt),"]\n";
@@ -151,9 +157,29 @@ sub parse_iso_format {
                $sufix = shift @fmt;
        }
        $display = $prefix.$display.$sufix if ($display);
-       print STDERR "format left unused: [",join("|",@fmt),"]\n" if (@fmt);
 
-       print STDERR "format: [",join("|",@{$tmp}),"]\n" if (@fmt);
+       my $eval = $cache->{format_eval}->{$format};
+       if ($eval) {
+               sub fld2str {
+                       my ($func,$row,$f,$sf,$i) = @_;
+#print STDERR "## in fld2str\n";
+                       my $tmp = &$func($row,$f,$sf,$i) || '';
+                       return "'$tmp'";
+               }
+
+               $eval =~ s/v(\d+)\^(\w*)/fld2str($func,$row,$1,$2,$i)/eg;
+#print STDERR "## eval: $eval\n";
+               if (eval "$eval") {
+                       return ($swish,$display);
+               } else {
+                       return (undef,undef);
+               }
+       }
+
+       if (@fmt) {
+               print STDERR "format left unused: [",join("|",@fmt),"]\n";
+               print STDERR "format: [",join("|",@{$tmp}),"]\n";
+       }
 
 #      print STDERR "format: {",$format || '',"} display: {",$display || '',"} swish: {",$swish || '',"}\n";