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#!/usr/bin/perl
use v5.14;
use warnings;
use Test2::V0;
use String::Tagged;
my $str = String::Tagged->new();
is( [ $str->tagnames ], [], 'No tags defined initially' );
ref_is( scalar $str->apply_tag( -1, -1, everywhere => 1 ),
$str, '->apply_tag returns $str' );
ref_is( scalar $str->append_tagged( "Hello", word => "greeting" ),
$str, '->append_tagged returns $str' );
is( $str->str, "Hello", 'str after first append' );
is( [ sort $str->tagnames ],
[qw( everywhere word )], 'tagnames after first append' );
is( $str->get_tags_at( 0 ),
{ word => "greeting", everywhere => 1 },
'tags at pos 0' );
is( $str->get_tag_at( 0, "word" ), "greeting", 'word tag at pos 0' );
my @tags;
sub fetch_tags
{
my ( $start, $len, %tags ) = @_;
push @tags, [ $start, $len, map { $_ => $tags{$_} } sort keys %tags ]
}
$str->iter_tags_nooverlap( \&fetch_tags );
is( \@tags,
[
[ 0, 5, everywhere => 1, word => "greeting" ],
],
'tags list after first append' );
$str->append_tagged( ", " ); # No tags
is( $str->str, "Hello, ", 'str after second append' );
undef @tags;
$str->iter_tags_nooverlap( \&fetch_tags );
is( \@tags,
[
[ 0, 5, everywhere => 1, word => "greeting" ],
[ 5, 2, everywhere => 1 ],
],
'tags list after second append' );
$str->append_tagged( "world", word => "target" );
is( $str->str, "Hello, world", 'str after third append' );
undef @tags;
$str->iter_tags_nooverlap( \&fetch_tags );
is( \@tags,
[
[ 0, 5, everywhere => 1, word => "greeting" ],
[ 5, 2, everywhere => 1 ],
[ 7, 5, everywhere => 1, word => "target" ],
],
'tags list after third append' );
# Behaviour of edge-anchored tags under append
{
my $str = String::Tagged->new( "orig" )
->apply_tag( 2, -1, tag => 1 );
$str->append( "plain" );
undef @tags;
$str->iter_tags_nooverlap( \&fetch_tags );
is( \@tags, [
[ 0, 2 ],
[ 2, 7, tag => 1 ],
],
'edge-anchored tag extended after append plain string' );
$str->append( String::Tagged->new( "tagged" ) );
undef @tags;
$str->iter_tags_nooverlap( \&fetch_tags );
is( \@tags, [
[ 0, 2 ],
[ 2, 7, tag => 1 ],
[ 9, 6 ],
],
'edge-anchored tag extended after append String::Tagged' );
}
done_testing;
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