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RE: quoting of special characters within XPath string

Subject: RE: quoting of special characters within XPath string
From: "Julian Reschke" <reschke@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 5 Apr 2000 19:20:08 +0200
xpath special characters
>> I can not guarantee that variableString does not contain single or double
>> quotes. It might even contain both kinds of quotes. How do I have to
escape
>> (?) those quotes to get a well-formed XPath string?
>
>there are some examples of this in the archive, but...
>
>First just consider the xpath syntax.
>
>You can use " or ' to delimit a string literal, so if you only want one
>then you can delimit with the other.
>  "'"  or '"'
>if you want both then you can not do it directly in a string literal but
>you can construct the string '" using
>translate('a"','a',"'")
>or
>concat("'",'"')
>or if you drop out of xpath, to xslt
><xsl:variable name="x">'"</xsl:variable>
>then use $x as this result tree fragment will coerce to a string.

Yes, it seems that the code can use ' or " and only fallback to concat() if
both types of quotes appear in the variable...

>   I was thinkin about something like
>
>	selectNodesParametrized (node, "/element[@attr ='$$']", variableString);
>
>isn't that just
>
>select="/element[@attr = $variableString]" ?
>
>or perhaps I didn't understand the question.

That might work in a stylesheet, but I don't think that the selectNodes()
method in the MSXML DOM has any notion of variables... How could it?

Thanks for the feedback,

Julian


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


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