正则表达式 - 如何把一个PHP中递归正则的语句替换为JavaScript非递归的语句?
最近正在做一个js版本的markdown解析库,打算将网上比较流行的一个名为Parsedown的库完整的迁移到js上,这样前后端就有相同的展现效果了,但是我发现它的原作者在使用正则时用到了递归,但js正则又是不支持递归的,所以寻求一个解决方法能完美迁移,下面是PHP代码,注意preg_match
部分
protected function identifyLink($Excerpt) { $extent = $Excerpt['text'][0] === '!' ? 1 : 0; if (strpos($Excerpt['text'], ']') and preg_match('/\[((?:[^][]|(?R))*)\]/', $Excerpt['text'], $matches)) {
回复内容:
最近正在做一个js版本的markdown解析库,打算将网上比较流行的一个名为Parsedown的库完整的迁移到js上,这样前后端就有相同的展现效果了,但是我发现它的原作者在使用正则时用到了递归,但js正则又是不支持递归的,所以寻求一个解决方法能完美迁移,下面是PHP代码,注意preg_match
部分
protected function identifyLink($Excerpt) { $extent = $Excerpt['text'][0] === '!' ? 1 : 0; if (strpos($Excerpt['text'], ']') and preg_match('/\[((?:[^][]|(?R))*)\]/', $Excerpt['text'], $matches)) {
Github 官方出了个解析脚本,何必还自己去写
https://github.com/jgm/stmd
下载 js 下面那个 stmd.js 就是
看看这个,php-to-js https://github.com/Danack/PHP-to-Javascript

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