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gihefca

Parsing em:id in install.rdf (XML file)

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Hi ;)

My goal is to get an id from install.rdf, XML file from Mozilla's extensions

I've tried with _XMLDomWrapper but it don't seem to work :D

I don't think it can't work with a regex, the id can be anywhere in the file and can have multiple instances of it

Example of XML to parse. I need to extract the red one

<?xml version="1.0"?>
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
  <Description about="urn:mozilla:install-manifest">
    <!-- Target Application this extension can install into,
        with minimum and maximum supported versions. -->
    <em:targetApplication>
      <Description>
        <!-- thunderbird -->
        [b]<em:id>{3550f703-e582-4d05-9a08-453d09bdfdc6}</em:id>[/b]
        <em:minVersion>1.5</em:minVersion>
        <em:maxVersion>3.1.*</em:maxVersion>
      </Description>
    </em:targetApplication>
    [color=#ff0000][b]<em:id>{9C463B6A-CCBE-11DB-97FC-FBC955D89593}</em:id>[/b][/color]
    <em:name>printers</em:name>
    <em:type>2</em:type>
    <em:version>0.4.9</em:version>
    <em:optionsURL>chrome&#058;//fgprinters/content/options.xul</em:optionsURL>
    <em:description>Adds additional print options</em:description>
    <em:creator>Ferdinand Grassmann</em:creator>
    <em:homepageURL>http://www.grassmann.info/ferdinand</em:homepageURL>
    <em:requires>
      <Description>
        <!-- Lightning -->
        [b]<em:id>{e2fda1a4-762b-4020-b5ad-a41df1933103}</em:id>[/b]
        <em:minVersion>0.9</em:minVersion>
        <em:maxVersion>1.0pre</em:maxVersion>
      </Description>
    </em:requires>
    <em:targetApplication>
      <Description>
        <!-- Sunbird -->
        [b]<em:id>{718e30fb-e89b-41dd-9da7-e25a45638b28}</em:id>[/b]
        <em:minVersion>0.9</em:minVersion>
        <em:maxVersion>1.0pre</em:maxVersion>
      </Description>
    </em:targetApplication>
  </Description>
</RDF>

Thanks for help :)

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is it always followed by the "printers" name line? if so something like:

#include <file.au3>

$max = _FileCountLines ("test.xml")

for $i = 1 to $max
$readline = filereadline("test.xml" , $i)
If stringinstr($readline ,"<em:name>printers</em:name>") Then
    $line = filereadline ("test.xml" , $i - 1)
    exitloop
EndIf

next

$id = stringregexp($line , "<em:id>(.*?)</em:id>" , 3)

msgbox (0, '' , $id[0])

,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-.
|(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/
(_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_)
| | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) (
| | | | |)| | \ / | | | | | |)| | `--. | |) \ | |
`-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_|
'-' '-' (__) (__) (_) (__)

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It's not always the same scheme used

btw, I found a solution using XML parser o/

Big thanks to PsaltyDS

#include <_XMLDOMWrapper.au3>
msgbox(0,"install.rdf id",_ParseRDF("install.rdf"))
Func _ParseRDF($file)
   $xmlFile = FileRead($file)
   $xmlFile = StringReplace($xmlFile,'xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"',"")
   $xmlNamespace = 'xmlns:em="http://www.mozilla.org/2004/em-rdf#"'
   If _XMLLoadXML($xmlFile, $xmlNamespace) Then
   $ret = _XMLGetValue("/RDF/Description/em:id")
   If UBound($ret)<>2 Then Return False
   Return $ret[1]
   EndIf
   Return False
EndFunc

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