package Data::Sah::Compiler::perl::TH::cistr;
our $DATE = '2016-05-20'; # DATE
our $VERSION = '0.78'; # VERSION
use 5.010;
use strict;
use warnings;
#use Log::Any '$log';
use Mo qw(build default);
use Role::Tiny::With;
extends 'Data::Sah::Compiler::perl::TH::str';
with 'Data::Sah::Type::cistr';
sub before_all_clauses {
my ($self, $cd) = @_;
my $c = $self->compiler;
my $dt = $cd->{data_term};
# XXX only do this when there are clauses
# convert to lowercase so we don't lc() the data repeatedly
$self->set_tmp_data_term($cd, "lc($dt)");
}
sub after_all_clauses {
my ($self, $cd) = @_;
my $c = $self->compiler;
my $dt = $cd->{data_term};
$self->restore_data_term($cd);
}
sub superclause_comparable {
my ($self, $which, $cd) = @_;
my $c = $self->compiler;
my $ct = $cd->{cl_term};
my $dt = $cd->{data_term};
if ($which eq 'is') {
$c->add_ccl($cd, "$dt eq lc($ct)");
} elsif ($which eq 'in') {
$c->add_smartmatch_pragma($cd);
$c->add_ccl($cd, "$dt ~~ [map {lc} \@{ $ct }]");
}
}
sub superclause_sortable {
my ($self, $which, $cd) = @_;
my $c = $self->compiler;
my $cv = $cd->{cl_value};
my $ct = $cd->{cl_term};
my $dt = $cd->{data_term};
if ($which eq 'min') {
$c->add_ccl($cd, "$dt ge lc($ct)");
} elsif ($which eq 'xmin') {
$c->add_ccl($cd, "$dt gt lc($ct)");
} elsif ($which eq 'max') {
$c->add_ccl($cd, "$dt le lc($ct)");
} elsif ($which eq 'xmax') {
$c->add_ccl($cd, "$dt lt lc($ct)");
} elsif ($which eq 'between') {
if ($cd->{cl_is_expr}) {
$c->add_ccl($cd, "$dt ge lc($ct\->[0]) && ".
"$dt le lc($ct\->[1])");
} else {
# simplify code
$c->add_ccl($cd, "$dt ge ".$c->literal(lc $cv->[0]).
" && $dt le ".$c->literal(lc $cv->[1]));
}
} elsif ($which eq 'xbetween') {
if ($cd->{cl_is_expr}) {
$c->add_ccl($cd, "$dt gt lc($ct\->[0]) && ".
"$dt lt lc($ct\->[1])");
} else {
# simplify code
$c->add_ccl($cd, "$dt gt ".$c->literal(lc $cv->[0]).
" && $dt lt ".$c->literal(lc $cv->[1]));
}
}
}
sub superclause_has_elems {
my ($self_th, $which, $cd) = @_;
my $c = $self_th->compiler;
my $cv = $cd->{cl_value};
my $ct = $cd->{cl_term};
my $dt = $cd->{data_term};
if ($which eq 'has') {
$c->add_ccl($cd, "index($dt, lc($ct)) > -1");
} else {
$self_th->SUPER::superclause_has_elems($which, $cd);
}
}
# turn "(?-xism:blah)" to "(?i-xsm:blah)"
sub __change_re_str_switch {
my $re = shift;
if ($^V ge v5.14.0) {
state $sub = sub { my $s = shift; $s =~ /i/ ? $s : "i$s" };
$re =~ s/\A\(\?\^(\w*):/"(?".$sub->($1).":"/e;
} else {
state $subl = sub { my $s = shift; $s =~ /i/ ? $s : "i$s" };
state $subr = sub { my $s = shift; $s =~ s/i//; $s };
$re =~ s/\A\(\?(\w*)-(\w*):/"(?".$subl->($1)."-".$subr->($2).":"/e;
}
return $re;
}
sub clause_match {
my ($self, $cd) = @_;
my $c = $self->compiler;
my $cv = $cd->{cl_value};
my $ct = $cd->{cl_term};
my $dt = $cd->{data_term};
if ($cd->{cl_is_expr}) {
$c->add_ccl($cd, join(
"",
"ref($ct) eq 'Regexp' ? $dt =~ qr/$ct/i : ",
"do { my \$re = $ct; eval { \$re = /\$re/i; 1 } && ",
"$dt =~ \$re }",
));
} else {
# simplify code and we can check regex at compile time
my $re = $c->_str2reliteral($cd, $cv);
$re = __change_re_str_switch($re);
$c->add_ccl($cd, "$dt =~ /$re/i");
}
}
1;
# ABSTRACT: perl's type handler for type "cistr"
__END__
=pod
=encoding UTF-8
=head1 NAME
Data::Sah::Compiler::perl::TH::cistr - perl's type handler for type "cistr"
=head1 VERSION
This document describes version 0.78 of Data::Sah::Compiler::perl::TH::cistr (from Perl distribution Data-Sah), released on 2016-05-20.
=for Pod::Coverage ^(clause_.+|superclause_.+|handle_.+|before_.+|after_.+)$
=head1 NOTES
Should probably be reimplemented using special Perl string type, or special Perl
operators, instead of simulated using C<lc()> on a per-clause basis. The
implementation as it is now is not "contagious", e.g. C<< [cistr =>
check_each_elem => '$_ eq "A"'] >> should be true even if data is C<"Aaa">,
since one would expect C<< $_ eq "A" >> is also done case-insensitively, but it
is currently internally implemented by converting data to lowercase and
splitting per character to become C<< ["a", "a", "a"] >>.
Or, avoid C<cistr> altogether and use C<prefilters> to convert to
lowercase/uppercase first before processing.
=head1 HOMEPAGE
Please visit the project's homepage at L<https://metacpan.org/release/Data-Sah>.
=head1 SOURCE
Source repository is at L<https://github.com/perlancar/perl-Data-Sah>.
=head1 BUGS
Please report any bugs or feature requests on the bugtracker website L<https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Sah>
When submitting a bug or request, please include a test-file or a
patch to an existing test-file that illustrates the bug or desired
feature.
=head1 AUTHOR
perlancar <perlancar@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2016 by perlancar@cpan.org.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut