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#!/usr/bin/perl -w
# Copyright 2009, 2010, 2017, 2021 Kevin Ryde
# This file is part of Perl-Critic-Pulp.
#
# Perl-Critic-Pulp is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3, or (at your option) any
# later version.
#
# Perl-Critic-Pulp is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Perl-Critic-Pulp. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use warnings;
use Perl::Critic::Policy::ValuesAndExpressions::ProhibitUnknownBackslash;
use PPI::Document;
$|=1;
# uncomment this to run the ### lines
use Smart::Comments;
{
my $str = "\" \\N{SMILE} \"\n";
require Perl::Critic;
my $critic = Perl::Critic->new
('-profile' => '',
'-single-policy' => '^Perl::Critic::Policy::ValuesAndExpressions::ProhibitUnknownBackslash$');
my @policies = $critic->policies;
my $policy = $policies[0];
$policy->{_charnames} = 'disallow';
$policy->{_charnames} = 'allow';
$policy->{_charnames} = 'version';
my @violations = $critic->critique (\$str);
print $str;
print scalar(@violations), " violations\n";
foreach my $violation (@violations) {
print $violation->description,"\n";
}
exit 0;
}
{
my $str = "\$who is a \N{SMILE}\\n";
require PPI::Tokenizer;
my $tokenizer = PPI::Tokenizer->new(\$str);
# Or we can use it as an iterator
for (;;) {
print "get_token\n";
my $token;
my $ok = eval { $token = $tokenizer->get_token; 1 };
my $error = $@;
### error ref: ref $error
### $error
### $token
if ($ok) {
print "token: $token\n";
} else {
my $message = $error->message;
print "message: $message\n";
last;
}
# PPI::Exception
}
# my $tokens;
# $tokens = $tokenizer->all_tokens;
exit 0;
Perl::Critic::Policy::ValuesAndExpressions::ProhibitUnknownBackslash::_pos_after_interpolate_variable($str);
exit 0;
;
}
{
# charnames size
# about 1.5mb increase in used, it seems
sub mall {
my $h = Devel::Mallinfo::mallinfo();
return $h->{'uordblks'} + $h->{'usmblks'} + $h->{'hblkhd'};
}
{
require Devel::Mallinfo;
my @sizes;
push @sizes, mall();
eval '"abc"';
push @sizes, mall();
eval '"abc"';
push @sizes, mall();
eval '"\N{U+1234}"';
# print ord(eval '"\N{U+1234}"'),"\n";
push @sizes, mall();
eval '"\N{LATIN SMALL LETTER E WITH ACUTE}"';
push @sizes, mall();
# eval '"\N{LATIN SMALL LETTER E WITH ACUTE}"';
# push @sizes, mall();
# eval '"\N{GREEK SMALL LETTER SIGMA}"';
# push @sizes, mall();
# eval '"\N{GREEK SMALL LETTER SIGMA}"';
# push @sizes, mall();
foreach my $i (1 .. $#sizes) {
print $sizes[$i] - $sizes[$i-1],"\n";
}
}
exit 0;
}
{
require PPI::Tokenizer;
foreach my $c (0 .. 127) {
my $str = chr($c);
# $str =~ s/[^[:print:]\t\n\v\f\r]/ /g;
my $tokenizer = PPI::Tokenizer->new(\$str);
my $ok = eval { $tokenizer->get_token; 1 };
my $error = $@;
if (! $ok) {
print "$c ",ref $error,"\n";
}
}
exit 0;
}
{
# "\v";
exit 0;
}
{
require Encode;
binmode STDOUT, ':utf8' or die;
foreach my $s ('*', 'z',
chr(128),
chr(255),
Encode::decode('latin-1',chr(255)),
chr(0x1234),
chr(0x2022), # bullet
chr(0x2297), # circle times
) {
my $q = quotemeta($s);
print ord($s), " ", ($s eq $q ? "unchanged" : "changed"), " $s $q",
" ",(utf8::is_utf8($s) ? "utf8" : "bytes"), "\n";
}
exit 0;
}
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