/[pcre]/code/tags/pcre-6.6/perltest
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revision 49 by nigel, Sat Feb 24 21:39:33 2007 UTC revision 63 by nigel, Sat Feb 24 21:40:03 2007 UTC
# Line 1  Line 1 
1  #! /usr/bin/perl  #! /usr/bin/perl
2    
3  # Program for testing regular expressions with perl to check that PCRE handles  # Program for testing regular expressions with perl to check that PCRE handles
4  # them the same.  # them the same. This is the version that supports /8 for UTF-8 testing. As it
5    # stands, it requires at least Perl 5.8 for UTF-8 support. For Perl 5.6, it
6    # can be used as is for non-UTF-8 testing, but you have to uncomment the
7    # "use utf8" lines in order to to UTF-8 stuff (and you mustn't uncomment them
8    # for non-UTF-8 use).
9    
10    
11  # Function for turning a string into a string of printing chars  # Function for turning a string into a string of printing chars. There are
12    # currently problems with UTF-8 strings; this fudges round them.
13    
14  sub pchars {  sub pchars {
15  my($t) = "";  my($t) = "";
16    
17  foreach $c (split(//, $_[0]))  if ($utf8)
18    {    {
19    if (ord $c >= 32 && ord $c < 127) { $t .= $c; }  #  use utf8;                    <=============== For UTF-8 in Perl 5.6
20      else { $t .= sprintf("\\x%02x", ord $c); }    @p = unpack('U*', $_[0]);
21      foreach $c (@p)
22        {
23        if ($c >= 32 && $c < 127) { $t .= chr $c; }
24          else { $t .= sprintf("\\x{%02x}", $c); }
25        }
26    }    }
27    
28    else
29      {
30      foreach $c (split(//, $_[0]))
31        {
32        if (ord $c >= 32 && ord $c < 127) { $t .= $c; }
33          else { $t .= sprintf("\\x%02x", ord $c); }
34        }
35      }
36    
37  $t;  $t;
38  }  }
39    
# Line 64  for (;;) Line 84  for (;;)
84     chomp($pattern);     chomp($pattern);
85     $pattern =~ s/\s+$//;     $pattern =~ s/\s+$//;
86    
87    # The private /+ modifier means "print $' afterwards". We use it    # The private /+ modifier means "print $' afterwards".
   # only on the end of patterns to make it easy to chop off here.  
88    
89    $showrest = ($pattern =~ s/\+(?=[a-z]*$)//);    $showrest = ($pattern =~ s/\+(?=[a-z]*$)//);
90    
91      # The private /8 modifier means "operate in UTF-8". Currently, Perl
92      # has bugs that we try to work around using this flag.
93    
94      $utf8 = ($pattern =~ s/8(?=[a-z]*$)//);
95    
96    # Check that the pattern is valid    # Check that the pattern is valid
97    
98    eval "\$_ =~ ${pattern}";    if ($utf8)
99        {
100    #    use utf8;                    <=============== For UTF-8 in Perl 5.6
101        eval "\$_ =~ ${pattern}";
102        }
103      else
104        {
105        eval "\$_ =~ ${pattern}";
106        }
107    
108    if ($@)    if ($@)
109      {      {
110      printf $outfile "Error: $@";      printf $outfile "Error: $@";
# Line 112  for (;;) Line 145  for (;;)
145    
146      @subs = ();      @subs = ();
147    
148      eval "${cmd} (\$x =~ ${pattern}) {" .      $pushes = "push \@subs,\$&;" .
          "push \@subs,\$&;" .  
149           "push \@subs,\$1;" .           "push \@subs,\$1;" .
150           "push \@subs,\$2;" .           "push \@subs,\$2;" .
151           "push \@subs,\$3;" .           "push \@subs,\$3;" .
# Line 132  for (;;) Line 164  for (;;)
164           "push \@subs,\$16;" .           "push \@subs,\$16;" .
165           "push \@subs,\$'; }";           "push \@subs,\$'; }";
166    
167        if ($utf8)
168          {
169    #      use utf8;                    <=============== For UTF-8 in Perl 5.6
170          eval "${cmd} (\$x =~ ${pattern}) {" . $pushes;
171          }
172        else
173          {
174          eval "${cmd} (\$x =~ ${pattern}) {" . $pushes;
175          }
176    
177      if ($@)      if ($@)
178        {        {
179        printf $outfile "Error: $@\n";        printf $outfile "Error: $@\n";

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