从字符串定期EX pressions在.NET中提取令牌 [英] Extracting tokens from a string with regular expressions in .NET

问题描述

我很好奇，如果这甚至有可能与正则表达式。我想从类似于一个字符串中提取标记：

I'm curious if this is even possible with Regex. I want to extract tokens from a string similar to:

Select a [COLOR] and a [SIZE].

好，很容易 - 我可以使用（\ [AZ] + \]）

不过，我也想提取的标记之间的文本。基本上，我想匹配的组为上述是：

However, I want to also extract the text between the tokens. Basically, I want the matched groups for the above to be:

"Select a "
"[COLOR]"
" and a "
"[SIZE]"
"."

什么是我们的最佳方法呢？如果有一种方法用正则表达式做到这一点，那将是巨大的。否则，我猜我已经通过MatchCollection提取令牌，然后手动循环，并解析出根据每场比赛的索引和长度的字符串。请注意，我需要preserve字符串和标记的顺序。有没有更好的算法，做这样的字符串解析的？

What's the best approach for this? If there's a way to do this with RegEx, that would be great. Otherwise, I'm guessing I have to extract the tokens, then manually loop through the MatchCollection and parse out the substrings based on the indexes and lengths of each Match. Please note I need to preserve the order of the strings and tokens. Is there a better algorithm to do this sort of string parsing?

推荐答案

使用 Regex.Split（S，@（\ [AZ] + \]）） - 它应该给你，你以后的确切阵列。拆分需要捕获组，并将其转换为标记的结果数组中开始。

Use Regex.Split(s, @"(\[[A-Z]+\])") - it should give you the exact array you're after. Split takes captured groups and converts them to tokens in the result array.

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