UCD\Unicode\Codepoint\Range\Collection

Complexity

Total Complexity

5

Size/Duplication

Total Lines	39
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	3

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	expand()	0	6	1
A	yieldCodepoints()	0	9	3
A	toRegexCharacterClass()	0	10	1

<?php

namespace UCD\Unicode\Codepoint\Range;

use UCD\Unicode\Codepoint;
use UCD\Unicode\Codepoint\Range;
use UCD\Unicode\Codepoint\RegexBuilder;
use UCD\Unicode\Collection\TraversableBackedCollection;

class Collection extends TraversableBackedCollection
{
    /**
     * @return Codepoint[]|Codepoint\Collection
     */
    public function expand()
    {
        return new Codepoint\Collection(
            $this->yieldCodepoints()
        );
    }

    /**
     * @return \Generator
     */
    private function yieldCodepoints()
    {
        /** @var Range $range */
        foreach ($this as $range) {
            foreach ($range->expand() as $codepoint) {
                yield $codepoint;
            }
        }
    }

    /**
     * @return string
     */
    public function toRegexCharacterClass()
    {
        $regexBuilder = new RegexBuilder();

        $this->traverseWith(function (Range $range) use ($regexBuilder) {
            $regexBuilder->addRange($range);
        });

        return $regexBuilder->getCharacterClass();
    }
}