如何高效构建复杂正则匹配模式？s9e/regexp-builder助你轻松搞定！

/product/(\d+)

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s9e/regexp-builder

s9e/regexp-builder

['foo', 'bar', 'baz']

(foo|bar|baz)

ba[rz]|foo

<pre class="brush:php;toolbar:false;">composer require s9e/regexp-builder

<pre class="brush:php;toolbar:false;"><?php

require 'vendor/autoload.php';

use s9e\RegexpBuilder\Factory\PHP;

// 获取适用于 PHP (PCRE2) 引擎的构建器
$builder = PHP::getBuilder();

$keywords = ['apple', 'banana', 'orange', 'apricot'];

// 构建正则表达式
$regexp = $builder->build($keywords);

echo '/' . $regexp . '/';
// 可能会输出类似：/ap(?:ple|ricot)|banana|orange/ （实际输出可能因版本和优化策略而异）

// 测试匹配
if (preg_match('/' . $regexp . '/', 'I like banana and apple.')) {
    echo "\n匹配成功！";
}

apple

apricot

ap(?:ple|ricot)

s9e/regexp-builder

<pre class="brush:php;toolbar:false;"><?php

require 'vendor/autoload.php';

use s9e\RegexpBuilder\Factory\JavaScript;
use s9e\RegexpBuilder\Factory\PHP;

$strings = ['?', '?'];

// PHP (PCRE) 默认处理字节，需要 'u' 修饰符才能正确处理 Unicode
$phpBuilder = PHP::getBuilder();
echo 'PHP (无u修饰符): /', $phpBuilder->build($strings), "/\n";

$phpUnicodeBuilder = PHP::getBuilder(modifiers: 'u');
echo 'PHP (带u修饰符): /', $phpUnicodeBuilder->build($strings), "/u\n";

// JavaScript 默认处理 UTF-16，也需要 'u' 标志来正确处理 Unicode 码点
$jsBuilder = JavaScript::getBuilder();
echo 'JavaScript (无u标志): /', $jsBuilder->build($strings), "/\n";

$jsUnicodeBuilder = JavaScript::getBuilder(flags: 'u');
echo 'JavaScript (带u标志): /', $jsUnicodeBuilder->build($strings), "/u\n";

s9e\RegexpBuilder\Expression

<pre class="brush:php;toolbar:false;"><?php

require 'vendor/autoload.php';

use s9e\RegexpBuilder\Builder;
use s9e\RegexpBuilder\Expression;
use s9e\RegexpBuilder\Factory\PHP;
use s9e\RegexpBuilder\GroupType;

// 辅助函数，创建 Expression 实例
function expr(string $expr)
{
    return new Expression($expr);
}

$delimiter = '~'; // 使用波浪号作为正则分隔符
$builder   = PHP::getBuilder(delimiter: $delimiter);

// 设置为非捕获组，且重置组编号，方便路由匹配
$builder->serializer->groupType = GroupType::NonCaptureReset;

// 定义路由模式，混合了字面量和正则表达式
$routes = [
    ['/', expr('(*:home)')],
    ['/admin', expr('(*:admin_index)')],
    ['/admin/login', expr('(*:admin_login)')],
    ['/admin/product/', expr('(\d+)'), expr('(*:admin_product_show)')], // 动态ID
    ['/shop', expr('(*:shop_index)')],
];

$regexp = $builder->build($routes);
$finalRegexp = $delimiter . '^' . $regexp . '$' . $delimiter; // 添加起始和结束锚点

echo "生成的路由正则表达式:\n$finalRegexp\n\n";

// 测试路由匹配
$url = '/admin/product/123';
if (preg_match($finalRegexp, $url, $matches)) {
    echo "匹配成功！\n";
    print_r($matches);
} else {
    echo "匹配失败。\n";
}

(*:name)

s9e/regexp-builder

s9e/regexp-builder