nebula\route\uri\MatchBuilder

Complexity

Total Complexity

4

Size/Duplication

Total Lines	40
Duplicated Lines	0 %

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	build()	0	31	4

<?php
namespace nebula\route\uri;

use Exception;
use nebula\route\uri\UriMatcher;
use nebula\route\uri\parameter\IntParameter;
use nebula\route\uri\parameter\UrlParameter;
use nebula\route\uri\parameter\FloatParameter;
use nebula\route\uri\parameter\StringParameter;

/**
 * 可执行命令表达式
 *
 */
class MatchBuilder
{
    protected static $parameters = [
        'float' => FloatParameter::class,
        'int' => IntParameter::class,
        'string' => StringParameter::class,
        'url' => UrlParameter::class,
    ];

    public static function build(string $uri):UriMatcher
    {
        // 参数
        $parameters = [];
        // 转义正则
        $url=preg_replace('/([\/\.\\\\\+\(\^\)\$\!\<\>\-\?\*])/', '\\\\$1', $uri);
        // 添加忽略
        $url=preg_replace('/(\[)([^\[\]]+)(?(1)\])/', '(?:$2)?', $url);
        // 添加 * ? 匹配
        $url=str_replace(['\*','\?'],['[^/]+?','[^/]'], $url);
        // 编译页面参数
        $url=preg_replace_callback('/\{(\w+)(?:\:([^}]+?))?\}/', function ($match) use (&$parameters) {
            $name = $match[1];
            $type = 'string';
            $extra = '';
            if (isset($match[2])) {
                if (strpos($match[2], '=')!==false) {
                    list($type, $extra) = \explode('=', $match[2]);
                } else {
                    $type = $match[2];
                }
            }
            if (!\in_array($type, array_keys(MatchBuilder::$parameters))) {
                throw new Exception(sprintf('unknown parameter type %s', $type), 1);
            }
            $parameter = MatchBuilder::$parameters[$type]::build($name, $extra);
            $parameters[] = $parameter;
            return $parameter->getMatch();
        }, $url);

        return new UriMatcher($url, $parameters);
    }
}