我正在从XSLT定义一个JavaScript变量,并且由于未转义的字符串而出现错误。我知道我需要将其替换为'
,但我不确定如何在XSLT 1.0中执行此操作。
XSLT示例:
var currentComment = '<xsl:value-of select="root/Reviews/Review/Comment" />';
使用未转义的单引号呈现javascript:
var currentComment = 'Let's test a string.',
// Causing an error ------^
答案 0 :(得分:7)
正如Ian Roberts在评论中指出的那样,你需要考虑反斜杠而不仅仅是撇号。 Dimitre的答案可以修改如下,以解释这个问题:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="/">
<xsl:text>var currentComment = '</xsl:text>
<xsl:apply-templates select="root/value" mode="escape" />
<xsl:text>'
</xsl:text>
<!-- Example with placing the escaped value in a variable first -->
<xsl:variable name="escapedOther">
<xsl:apply-templates select="root/otherValue" mode="escape" />
</xsl:variable>
<xsl:value-of select='concat("var otherComment = '", $escapedOther, "'")' />
</xsl:template>
<xsl:template match="@* | node()" mode="escape">
<!-- Escape the apostrophes second -->
<xsl:call-template name="replace">
<xsl:with-param name="pTarget" select='"'"' />
<xsl:with-param name="pReplacement" select='"\'"'/>
<xsl:with-param name="pText">
<!-- Escape the backslashes first, and then pass that result directly into the next template -->
<xsl:call-template name="replace">
<xsl:with-param name="pTarget" select="'\'" />
<xsl:with-param name="pReplacement" select="'\\'" />
<xsl:with-param name="pText" select="." />
</xsl:call-template>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
<xsl:template name="replace">
<xsl:param name="pText"/>
<xsl:param name="pTarget" select='"'"'/>
<xsl:param name="pReplacement" select="'\"'"/>
<xsl:if test="$pText">
<xsl:value-of select='substring-before(concat($pText,$pTarget),$pTarget)'/>
<xsl:if test='contains($pText, $pTarget)'>
<xsl:value-of select='$pReplacement'/>
</xsl:if>
<xsl:call-template name="replace">
<xsl:with-param name="pText" select='substring-after($pText, $pTarget)'/>
<xsl:with-param name="pTarget" select="$pTarget"/>
<xsl:with-param name="pReplacement" select="$pReplacement"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
任何时候你需要逃避某些事情,你可以使用模式apply-templates
上的escape
。对于此输入XML:
<?xml version="1.0" encoding="utf-8"?>
<root>
<value>Let's test a string that refers to something like the C:\ drive's \Program Files Directory.</value>
<otherValue>This value has a bunch of apostrophes '''' and backslashes \\\\ in it</otherValue>
</root>
这会产生:
var currentComment = 'Let\'s test a string that refers to something like the C:\\ drive\'s \\Program Files Directory.'
var otherComment = 'This value has a bunch of apostrophes \'\'\'\' and backslashes \\\\\\\\'
答案 1 :(得分:3)
此转化:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:variable name="vSomething">Let's test a string.</xsl:variable>
<xsl:template match="/">
<xsl:text>var currentComment = '</xsl:text>
<xsl:call-template name="replace">
<xsl:with-param name="pText" select="$vSomething"/>
</xsl:call-template>'
</xsl:template>
<xsl:template name="replace">
<xsl:param name="pText"/>
<xsl:param name="pTarget" select='"'"'/>
<xsl:param name="pReplacement" select='"\'"'/>
<xsl:if test="$pText">
<xsl:value-of select='substring-before(concat($pText,$pTarget),$pTarget)'/>
<xsl:if test='contains($pText, $pTarget)'>
<xsl:value-of select="$pReplacement"/>
</xsl:if>
<xsl:call-template name="replace">
<xsl:with-param name="pText" select='substring-after($pText, $pTarget)'/>
<xsl:with-param name="pTarget" select="$pTarget"/>
<xsl:with-param name="pReplacement" select="$pReplacement"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
应用于任何XML文档(未使用)时,会生成所需的正确结果:
var currentComment = 'Let\'s test a string.'
答案 2 :(得分:0)
这只是我完成xml所做的JLRische-Novachev解决方案的实现。 也许它有用:
<?xml version="1.0" encoding="utf-8"?>
<root>
<value msg="1- Let's test a string that refers to something like the C:\ drive's \Program Files Directory." num="1"/>
<value msg="2- Let's test a string that refers to something like the C:\ drive's \Program Files Directory." num="2"/>
</root>
的xsl:
...
<xsl:template match="@* | node()" mode="escape">
<!-- Escape the apostrophes second -->
<xsl:call-template name="replace">
<xsl:with-param name="pTarget" select='"'"' />
<xsl:with-param name="pReplacement" select='"\'"'/>
<xsl:with-param name="pText">
<!-- Escape the backslashes first, and then pass that result directly into the next template -->
<xsl:call-template name="replace">
<xsl:with-param name="pTarget" select="'\'" />
<xsl:with-param name="pReplacement" select="'\\'" />
<xsl:with-param name="pText" select="./@msg" />
</xsl:call-template>
</xsl:with-param>
</xsl:call-template>
<xsl:text>, Number: </xsl:text><xsl:value-of select="./@num"/><xsl:text>
</xsl:text>
...
输出:
1- Let\'s test a string that refers to something like the C:\\ drive\'s \\Program Files Directory., Number: 1
2- Let\'s test a string that refers to something like the C:\\ drive\'s \\Program Files Directory., Number: 2