Ruby Nokogiri - XPATH using URL - ruby

Question

I have this table:
<tr>
<td><b>Amount</b></td>
<td><b>Due Date</b></td>
<td"><b>Link</b></td>
</tr>
<tr>
<td>02/13/2012</td>
<td>$81.66</td>
<td><a onclick="javascript:window.open('/cso/displaypdfbill?selectedBillkey=449409587','_blank');" href="javascript: void(0);">View Bill</a></td>
</tr>
<tr>
<td>01/13/2012</td>
<td>$181.66</td>
<td><a onclick="javascript:window.open('/cso/displaypdfbill?selectedBillkey=543409587','_blank');" href="javascript: void(0);">View Bill</a></td>
</tr>
I am looping through the table and extracting the Bill key in each row. I removed the Billkey and stored it into a variable.
BillKey = 449409587
What I want is to get the <tr> where that BillKey is located:
So I should have:
2/13/2012 81.86 View Bill
I am having trouble writing the XPATH to get the <tr>.

Answer 1

Use:
string(table/tr
[td/a/#onclick
[substring
(.,
string-length()
- 21
)
=
$vEnding
]
]
)
where $vEnding must be substituted by the string: "=449409587','_blank');"
So, the complete XPath expression after this substitution is:
string(table/tr
[td/a/#onclick
[substring
(.,
string-length()
- 21
)
=
"=449409587','_blank');"
]
]
)
XSLT - based verification:
This XSLT transformation:
<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="vEnding">=449409587','_blank');</xsl:variable>
<xsl:template match="/">
<xsl:copy-of select=
"string(table/tr
[td/a/#onclick
[substring
(.,
string-length()
- 21
)
=
$vEnding
]
]
)
"/>
</xsl:template>
</xsl:stylesheet>
when applied on the following XML document (the provided one wrapped in a single top element table):
<table>
<tr>
<td>
<b>Amount</b>
</td>
<td>
<b>Due Date</b>
</td>
<td>
<b>Link</b>
</td>
</tr>
<tr>
<td>02/13/2012</td>
<td>$81.66</td>
<td>
<a onclick=
"javascript:window.open('/cso/displaypdfbill?selectedBillkey=449409587','_blank');" href="javascript: void(0);">View Bill</a>
</td>
</tr>
<tr>
<td>01/13/2012</td>
<td>$181.66</td>
<td>
<a onclick=
"javascript:window.open('/cso/displaypdfbill?selectedBillkey=543409587','_blank');" href="javascript: void(0);">View Bill</a>
</td>
</tr>
</table>
evaluates the XPath expression and copies to the output the result of the evaluation:
02/13/2012
$81.66
View Bill