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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Automatically generate xpath
 Take a look at Saxon (my favorite XSLT processor). Saxon includes an extension function called evaluate-node. That function reads an XPath expression from a source document and then evaluates it at runtime - very handy for this sort of thing. HTH Jay Bryant Bryant Communication Services ----- Original Message ----- From: "Liron" <magilam@xxxxxxxxxxxxxxxx> To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Sent: Monday, January 30, 2006 3:19 PM Subject: Automatically generate xpath > Hello all, > > I'm looing for some tool (an open source library would be better) that can > generate a xpath out of a set of xpaths with some rules like exclusion and > inclusion > I want to provide an example to what I mean. consider the following html: > > <html> > <body> > <table> > <tr><td><font> > <a href="about:blank"><b>Text1</b></a> > <a href="about:blank"><b>Text2</b></a> > <a href="about:blank"><b>Text3</b></a> > </font></td></tr> > <tr><td><font> > <a href="about:blank"><b>Text4</b></a> > <a href="about:blank"><b>Text5</b></a> > <a href="about:blank"><b>Text6</b></a> > </font></td></tr> > </table> > <table> > <tr><td><font> > <a href="about:blank"><b>Text7</b></a> > <a href="about:blank"><b>Text8</b></a> > <a href="about:blank"><b>Text9</b></a> > </font></td></tr> > <tr><td><font> > <a href="about:blank"><b>Text10</b></a> > <a href="about:blank"><b>Text11</b></a> > <a href="about:blank"><b>Text12</b></a> > </font></td></tr> > </table> > </body> > </html> > > I want to provide this tool the following xpaths: > /html/body/table[1]/tr[1]/td/font/a[1]/b/text() (this selects Text1) and > /html/body/table[2]/tr[2]/td/font/a[3]/b/text() (this selects Text12) > and get an output that looks something like: > > /html/body/table/tbody/tr/td/font/a[((count(preceding-sibling::a) = 0) and > (ancestor::table[1][count(preceding-sibling::table)=0]) and > (ancestor::tr[1][count(preceding-sibling::tr)=0])) or > ((count(preceding-sibling::a) = 2) and > (ancestor::table[1][count(preceding-sibling::table)=1]) and > (ancestor::tr[1][count(preceding-sibling::tr)=1]))]/b/text() > > which will return me Text1 and Text12 (I have no idea how to make this > simpler, if someone know of a way, I'd appreciate it) > > I'd also like to have the ability to exclude certain elements from a > supplied xpath in a kind of a reversed way. > > If anyone knows of a solution or such a tool I'd really appreciate it > > Thank you > Liron 
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