line.php

См. документацию.

<?php
 
 
namespace Bitrix\Calendar\ICal\Parser;
 
 
class Line
{
    private const COMPONENT_PROPERTY_NAME_BEGIN = 'begin';
    private const COMPONENT_PROPERTY_NAME_END = 'end';
    private const FIELDS_LIST_PARSE_WITH_END = ['attendee', 'dtstart', 'dtend'];
    private $name;
    private $value;
    private $params = [];
    private $line;

    public static function createInstance(string $line): Line
    {
        return new self($line);
    }

    public function __construct(string $line)
    {
        $this->line = $line;
    }
 

    public function parse(): Line
    {
        $line = $this->line;
        $valuePos = (int) mb_strpos($line, ':');
        $parts = explode(';', mb_substr($line, 0, $valuePos));
        $name = mb_strtolower(array_shift($parts));
        if (in_array($name, self::FIELDS_LIST_PARSE_WITH_END, true))
        {
            $valuePos = (int) mb_strrpos($this->line, ':');
        }
        $value = $this->getValueFromString($valuePos);
 
        $params = [];
        foreach($parts as $v)
        {
            if (!str_contains($v, '='))
            {
                continue;
            }
 
            [$k, $v] = explode('=', $v);
            $params[mb_strtolower($k)] = trim($v, '"');
        }
 
        $this->value = $value;
        $this->params = $params;
        $this->name = $name;
 
        return $this;
    }

    public function isBegin(): bool
    {
        return $this->name === self::COMPONENT_PROPERTY_NAME_BEGIN;
    }

    public function isEnd(): bool
    {
        return $this->name === self::COMPONENT_PROPERTY_NAME_END;
    }

    public function getValue(): string
    {
        return $this->value;
    }

    public function getName(): string
    {
        return $this->name;
    }

    public function getParams(): array
    {
        return $this->params;
    }

    public function getValueAsArray(): array
    {
        if (mb_strpos($this->value,",") !== false)
        {
            return explode(",",$this->value);
        }
 
        return [$this->value];
    }

    public function __toString(): string
    {
        return $this->getValue();
    }

    public function count(): int
    {
        return count($this->params);
    }

    private function getValueFromString(int $valuePos): string
    {
        $replacements = array('from'=>['\\,', '\\n', '\\;', '\\:', '\\"'], 'to'=>[',', "\n", ';', ':', '"']);
        $tmp = trim(mb_substr($this->line, $valuePos+1));
 
        return str_replace($replacements['from'], $replacements['to'], $tmp);
    }
}