Question

让我说我有：

$line = "{This is my {sentence|words} I wrote.}"

输出：

This is my sentence I wrote.  
This is my words I wrote.

但是，正则表达式应匹配深度和嵌套值并拆分这些值，例如：

$line = "{This is my {sentence|words} I wrote on a {sunny|cold} day.}";

输出：

This is my sentence I wrote on a sunny day.  
This is my sentence I wrote on a cold day.  
This is my words I wrote on a sunny day.
This is my words I wrote on a cold day.

我的第一个虽然是在下面的代码中爆炸，但结果不合适：

$res = explode("|", $line);

通知书？谢谢。

编辑：这些内容：

$line = "{This is my {sentence|words} I wrote on a {sunny|cold} day.}";
$regex = "{[^{}]*}";
$match = [];

preg_match($regex, $line, $match);

var_dump($match);

正如已经说过的那样，它可以达到无限，所以没有限制，适合于for循环。

Answer 1

检查一下。我通过使用SomeKey替换您的模式并使用vsprintf来完成它，然后以递归方式循环遍历匹配。

我在代码中添加了很多注释......理解递归通常是一个很好的工作。

Here is a working example.

%s

输出：

This is my sentence I wrote on a hot day.
This is my sentence I wrote on a hot night.
This is my sentence I wrote on a cold day.
This is my sentence I wrote on a cold night.
This is my sentence I typed on a hot day.
This is my sentence I typed on a hot night.
This is my sentence I typed on a cold day.
This is my sentence I typed on a cold night.
This is my statement I wrote on a hot day.
This is my statement I wrote on a hot night.
This is my statement I wrote on a cold day.
This is my statement I wrote on a cold night.
This is my statement I typed on a hot day.
This is my statement I typed on a hot night.
This is my statement I typed on a cold day.
This is my statement I typed on a cold night.

使用正则表达式的深（无限）分裂单词

1 个答案: