--- /dev/null
+#! /usr/bin/env perl
+
+# Program for testing regular expressions with perl to check that PCRE handles
+# them the same. This is the version that supports /8 for UTF-8 testing. As it
+# stands, it requires at least Perl 5.8 for UTF-8 support. However, it needs to
+# have "use utf8" at the start for running the UTF-8 tests, but *not* for the
+# other tests. The only way I've found for doing this is to cat this line in
+# explicitly in the RunPerlTest script.
+
+# use locale; # With this included, \x0b matches \s!
+
+# Function for turning a string into a string of printing chars. There are
+# currently problems with UTF-8 strings; this fudges round them.
+
+sub pchars {
+my($t) = "";
+
+if ($utf8)
+ {
+ @p = unpack('U*', $_[0]);
+ foreach $c (@p)
+ {
+ if ($c >= 32 && $c < 127) { $t .= chr $c; }
+ else { $t .= sprintf("\\x{%02x}", $c); }
+ }
+ }
+
+else
+ {
+ foreach $c (split(//, $_[0]))
+ {
+ if (ord $c >= 32 && ord $c < 127) { $t .= $c; }
+ else { $t .= sprintf("\\x%02x", ord $c); }
+ }
+ }
+
+$t;
+}
+
+
+# Read lines from named file or stdin and write to named file or stdout; lines
+# consist of a regular expression, in delimiters and optionally followed by
+# options, followed by a set of test data, terminated by an empty line.
+
+# Sort out the input and output files
+
+if (@ARGV > 0)
+ {
+ open(INFILE, "<$ARGV[0]") || die "Failed to open $ARGV[0]\n";
+ $infile = "INFILE";
+ }
+else { $infile = "STDIN"; }
+
+if (@ARGV > 1)
+ {
+ open(OUTFILE, ">$ARGV[1]") || die "Failed to open $ARGV[1]\n";
+ $outfile = "OUTFILE";
+ }
+else { $outfile = "STDOUT"; }
+
+printf($outfile "Perl $] Regular Expressions\n\n");
+
+# Main loop
+
+NEXT_RE:
+for (;;)
+ {
+ printf " re> " if $infile eq "STDIN";
+ last if ! ($_ = <$infile>);
+ printf $outfile "$_" if $infile ne "STDIN";
+ next if ($_ eq "");
+
+ $pattern = $_;
+
+ while ($pattern !~ /^\s*(.).*\1/s)
+ {
+ printf " > " if $infile eq "STDIN";
+ last if ! ($_ = <$infile>);
+ printf $outfile "$_" if $infile ne "STDIN";
+ $pattern .= $_;
+ }
+
+ chomp($pattern);
+ $pattern =~ s/\s+$//;
+
+ # The private /+ modifier means "print $' afterwards".
+
+ $showrest = ($pattern =~ s/\+(?=[a-z]*$)//);
+
+ # Remove /8 from a UTF-8 pattern.
+
+ $utf8 = $pattern =~ s/8(?=[a-z]*$)//;
+
+ # Remove /J from a pattern with duplicate names.
+
+ $pattern =~ s/J(?=[a-z]*$)//;
+
+ # Check that the pattern is valid
+
+ eval "\$_ =~ ${pattern}";
+ if ($@)
+ {
+ printf $outfile "Error: $@";
+ next NEXT_RE;
+ }
+
+ # If the /g modifier is present, we want to put a loop round the matching;
+ # otherwise just a single "if".
+
+ $cmd = ($pattern =~ /g[a-z]*$/)? "while" : "if";
+
+ # If the pattern is actually the null string, Perl uses the most recently
+ # executed (and successfully compiled) regex is used instead. This is a
+ # nasty trap for the unwary! The PCRE test suite does contain null strings
+ # in places - if they are allowed through here all sorts of weird and
+ # unexpected effects happen. To avoid this, we replace such patterns with
+ # a non-null pattern that has the same effect.
+
+ $pattern = "/(?#)/$2" if ($pattern =~ /^(.)\1(.*)$/);
+
+ # Read data lines and test them
+
+ for (;;)
+ {
+ printf "data> " if $infile eq "STDIN";
+ last NEXT_RE if ! ($_ = <$infile>);
+ chomp;
+ printf $outfile "$_\n" if $infile ne "STDIN";
+
+ s/\s+$//;
+ s/^\s+//;
+
+ last if ($_ eq "");
+ $x = eval "\"$_\""; # To get escapes processed
+
+ # Empty array for holding results, then do the matching.
+
+ @subs = ();
+
+ $pushes = "push \@subs,\$&;" .
+ "push \@subs,\$1;" .
+ "push \@subs,\$2;" .
+ "push \@subs,\$3;" .
+ "push \@subs,\$4;" .
+ "push \@subs,\$5;" .
+ "push \@subs,\$6;" .
+ "push \@subs,\$7;" .
+ "push \@subs,\$8;" .
+ "push \@subs,\$9;" .
+ "push \@subs,\$10;" .
+ "push \@subs,\$11;" .
+ "push \@subs,\$12;" .
+ "push \@subs,\$13;" .
+ "push \@subs,\$14;" .
+ "push \@subs,\$15;" .
+ "push \@subs,\$16;" .
+ "push \@subs,\$'; }";
+
+ eval "${cmd} (\$x =~ ${pattern}) {" . $pushes;
+
+ if ($@)
+ {
+ printf $outfile "Error: $@\n";
+ next NEXT_RE;
+ }
+ elsif (scalar(@subs) == 0)
+ {
+ printf $outfile "No match\n";
+ }
+ else
+ {
+ while (scalar(@subs) != 0)
+ {
+ printf $outfile (" 0: %s\n", &pchars($subs[0]));
+ printf $outfile (" 0+ %s\n", &pchars($subs[17])) if $showrest;
+ $last_printed = 0;
+ for ($i = 1; $i <= 16; $i++)
+ {
+ if (defined $subs[$i])
+ {
+ while ($last_printed++ < $i-1)
+ { printf $outfile ("%2d: <unset>\n", $last_printed); }
+ printf $outfile ("%2d: %s\n", $i, &pchars($subs[$i]));
+ $last_printed = $i;
+ }
+ }
+ splice(@subs, 0, 18);
+ }
+ }
+ }
+ }
+
+# printf $outfile "\n";
+
+# End
projects / vuplus_xbmc / blobdiff