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#!/usr/bin/env perl
use strict;
use warnings;
use Test::More tests => 3;
use Text::Haml;
my $haml = Text::Haml->new(
helpers => {
foo => sub {
my $self = shift;
my $string = shift;
$string =~ s/r/z/;
return $string;
}
}
);
$haml->add_helper(bar => sub {
my $self = shift;
my $string = shift;
return 'hello';
});
my $output = $haml->render(<<'EOF');
= foo('bar')
= bar()
EOF
is($output, <<'EOF');
baz
hello
EOF
# helper that captures child block
$haml->add_helper(block1 => sub {
my $self = shift;
my $block = shift;
$block->();
$block->();
$block->();
},
prototype => '&',
);
$output = $haml->render(<<'EOF');
- block1
foo
EOF
is($output, <<'EOF');
foo
foo
foo
EOF
# standard-ish helpers
$haml->add_helper(precede => sub {
my ($self, $text, $block) = @_;
$self->namespace->outs($text);
$block->();
},
prototype => '$&',
arg_force_self => 1,
);
$haml->add_helper(succeed => sub {
my ($self, $text, $block) = @_;
$block->();
my $needs_newline = $self->namespace->out_chomp();
$self->namespace->outs($text);
$self->namespace->outs("\n") if $needs_newline;
},
prototype => '$&',
arg_force_self => 1,
);
$haml->add_helper(surround => sub {
my ($self, $precede, $succeed, $block) = @_;
$self->namespace->outs($precede);
$block->();
my $needs_newline = $self->namespace->out_chomp();
$self->namespace->outs($succeed);
$self->namespace->outs("\n") if $needs_newline;
});
$output = $haml->render(<<'EOF');
- precede '*', sub
foo
- succeed '*', sub
bar
- surround '(', ')', sub
foobar
EOF
is($output, "*foo
bar*
(foobar)
");