XSL 分析字符串 ->将子串匹配到多个变量中

问题描述

我想知道是否可以使用 analyze-string 并在 RegEx 中设置多个组，然后将所有匹配的组存储在变量中以备后用.

I was wondering if it is possible to use analyze-string and set multiple groups within the RegEx and then store all of the matching groups in variables to use later on.

像这样:

<xsl:analyze-string regex="^Blah\s+(\d+)\s+Bloo\s+(\d+)\s+Blee" select=".">
  <xsl:matching-substring>
    <xsl:variable name="varX">
      <xsl:value-of select="regex-group(1)"/>
    </xsl:variable>
    <xsl:variable name="varY">
      <xsl:value-of select="regex-group(2)"/>
    </xsl:variable>
  </xsl:matching-substring>
</xsl:analyze-string>

这实际上不起作用，但这正是我所追求的，我知道我可以将 analyze-string 包装在一个变量中，但这对于我的每个组来说似乎都很愚蠢必须处理正则表达式，效率不高，我应该能够处理一次正则表达式并存储所有组以备后用.

This doesn't actually work, but that's the sort of thing I'm after, I know I can wrap the analyze-string in a variable, but that seems daft that for every group I have to process the RegEx, not very efficient, I should be able to process the regex once and store all of the groups for use later on.

有什么想法吗?

推荐答案

做得好

<xsl:variable name="groups" as="element(group)*">
<xsl:analyze-string regex="^Blah\s+(\d+)\s+Bloo\s+(\d+)\s+Blee" select=".">
<xsl:matching-substring>
  <group>
     <x><xsl:value-of select="regex-group(1)"/></x>
     <y><xsl:value-of select="regex-group(2)"/></y>
  </group>
</xsl:matching-substring>
</xsl:analyze-string>
</xsl:variable>

帮助?这样你就有了一个名为 groups 的变量，它是一个带有捕获的 group 元素的序列.

help? That way you have a variable named groups which is a sequence of group elements with the captures.

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