<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:a="urn:schemas-microsoft-com:office:access" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" xmlns:b="urn:schemas-microsoft-com:office:publisher" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:q="http://schemas.xmlsoap.org/soap/envelope/" xmlns:D="DAV:" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ois="http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir="http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:dsp="http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc="http://schemas.microsoft.com/data/udc" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:sub="http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec="http://www.w3.org/2001/04/xmlenc#" xmlns:sp="http://schemas.microsoft.com/sharepoint/" xmlns:sps="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:udcxf="http://schemas.microsoft.com/data/udc/xmlfile" xmlns:wf="http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:mver="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels="http://schemas.openxmlformats.org/package/2006/relationships" xmlns:ex12t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:Z="urn:schemas-microsoft-com:" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal>Dear Erlang bug support,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I seem to be having problems using scalar expressions that
include functions within XPath in xmerl (1.1.9). I am using R12B-3 on
Windows. The following XPath queries are legal, as far as I can tell, but
xmerl doesn’t accept them. I’d be grateful if you could tell me if this really
is a problem and provide a fix if possible. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Problem is in: <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>xmerl_xpath:string(Pattern,Xml)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>where Xml is a parsed reprsentation of Xml = "<code
cd1= 'AA' cd2 = 'BB' />"<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>when Pattern is concat(/code/@cd1, /code/@cd2) it produces:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>** exception error: no function clause matching<o:p></o:p></p>
<p class=MsoNormal>
xmerl_xpath:match_expr({function_call,concat,<o:p></o:p></p>
<p class=MsoNormal>
[{path,abs,<o:p></o:p></p>
<p class=MsoNormal>
{refine,<o:p></o:p></p>
<p class=MsoNormal>
{step,<o:p></o:p></p>
<p class=MsoNormal>
{child,<o:p></o:p></p>
<p class=MsoNormal>
{name,{code,[],"code"}},<o:p></o:p></p>
<p class=MsoNormal>
[]}},<o:p></o:p></p>
<p class=MsoNormal>
{step,<o:p></o:p></p>
<p class=MsoNormal>
{attribute,<o:p></o:p></p>
<p class=MsoNormal>
{name,{cd1,[],"cd1"}},<o:p></o:p></p>
<p class=MsoNormal>
[]}}}},<o:p></o:p></p>
<p class=MsoNormal>
{path,abs,<o:p></o:p></p>
<p class=MsoNormal>
{refine,<o:p></o:p></p>
<p class=MsoNormal>
{step,<o:p></o:p></p>
<p class=MsoNormal>
{child,<o:p></o:p></p>
<p class=MsoNormal>
{name,{code,[],"code"}},<o:p></o:p></p>
<p class=MsoNormal>
[]}},<o:p></o:p></p>
<p class=MsoNormal>
{step,<o:p></o:p></p>
<p class=MsoNormal>
{attribute,<o:p></o:p></p>
<p class=MsoNormal>
{name,{cd2,[],"cd2"}},<o:p></o:p></p>
<p class=MsoNormal>
[]}}}}]},<o:p></o:p></p>
<p class=MsoNormal>
{state,<o:p></o:p></p>
<p class=MsoNormal>
{xmlContext,forward,<o:p></o:p></p>
<p class=MsoNormal>
{xmlNode,element,<o:p></o:p></p>
<p class=MsoNormal>
{xmlElement,code,code,[],<o:p></o:p></p>
<p class=MsoNormal>
{xmlNamespace,[],[]},<o:p></o:p></p>
<p class=MsoNormal>
[],1,<o:p></o:p></p>
<p class=MsoNormal>
[{xmlAttribute,cd1,[],[],[],<o:p></o:p></p>
<p class=MsoNormal>
[],1,[],"AA",false},<o:p></o:p></p>
<p class=MsoNormal>
{xmlAttribute,cd2,[],[],[],<o:p></o:p></p>
<p class=MsoNormal>
[],2,[],<o:p></o:p></p>
<p class=MsoNormal>
[...],...}],<o:p></o:p></p>
<p class=MsoNormal>
[],[],"C:/mycode/erlang/xml",<o:p></o:p></p>
<p class=MsoNormal>
undeclared},<o:p></o:p></p>
<p class=MsoNormal>
[],1},<o:p></o:p></p>
<p class=MsoNormal>
1,[],[],[],[],<o:p></o:p></p>
<p class=MsoNormal>
{xmlNode,root_node,<o:p></o:p></p>
<p class=MsoNormal>
{xmlDocument,<o:p></o:p></p>
<p class=MsoNormal>
{xmlElement,code,code,[],<o:p></o:p></p>
<p class=MsoNormal>
{xmlNamespace,[],[]},<o:p></o:p></p>
<p class=MsoNormal>
[],1,<o:p></o:p></p>
<p class=MsoNormal>
[{xmlAttribute,cd1,...},<o:p></o:p></p>
<p class=MsoNormal>
{xmlAttribute,...}],<o:p></o:p></p>
<p class=MsoNormal>
[],[],<o:p></o:p></p>
<p class=MsoNormal>
[...],...}},<o:p></o:p></p>
<p class=MsoNormal>
[],1}},<o:p></o:p></p>
<p class=MsoNormal>
[]})<o:p></o:p></p>
<p class=MsoNormal> in function
xmerl_xpath:string/5<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>When Pattern is string-length(/code/@cd1) it produces:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>** exception error: no function clause matching<o:p></o:p></p>
<p class=MsoNormal>
xmerl_xpath:match_expr({function_call,'string-length',<o:p></o:p></p>
<p class=MsoNormal>
[{path,abs,<o:p></o:p></p>
<p class=MsoNormal>
{refine,<o:p></o:p></p>
<p class=MsoNormal>
{step,<o:p></o:p></p>
<p class=MsoNormal>
{child<span
style='color:#1F497D'>…….</span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal> in function
xmerl_xpath:string/5<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Yours sincerely<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>John Watson<o:p></o:p></p>
</div>
<p><span style="font-family:'Arial';font-size:8pt;">*************************************************************</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">Satellite Information Services Limited Registered Office: </span></p>
<p><span style="font-family:'Arial';font-size:8pt;">17 Corsham Street London N1 6DR, Company No. 4243307</span></p>
<p><span style="font-family:'Arial';font-size:8pt;"></span></p>
<p><span style="font-family:'Arial';font-size:8pt;"> </span></p>
<p><span style="font-family:'Arial';font-size:8pt;">The information in this e-mail (which includes any files</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">transmitted with it) is confidential and is intended for the</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">addressee only. Unauthorised recipients are required to</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">maintain confidentiality. If you have received this e-mail</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">in error please notify the sender immediately, destroy any</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">copies and delete it from your computer system. </span></p>
<p><span style="font-family:'Arial';font-size:8pt;">*************************************************************</span></p>
<p><span style="font-family:'Arial';font-size:8pt;"> </span></p></body>
</html>