用Ruby和Nokogiri處理XML文件

我是編程新手，所以請耐心等待。我有一個看起來像這樣許多XML文檔：用Ruby和Nokogiri處理XML文件

文件名：PRIDE_Exp_Complete_Ac_10094.xml.gz

<ExperimentCollection version="2.1"> 
<Experiment> 
    <ExperimentAccession>1015</ExperimentAccession> 
    <Title>Protein complexes in Saccharomyces cerevisiae (GPM06600002310)</Title> 
    <ShortLabel>GPM06600002310</ShortLabel> 
    <Protocol> 
     <ProtocolName>None</ProtocolName> 
    </Protocol> 
    <mzData version="1.05" accessionNumber="1015"> 
     <cvLookup cvLabel="RESID" fullName="RESID Database of Protein Modifications" version="0.0" address="http://www.ebi.ac.uk/RESID/" /> 
     <cvLookup cvLabel="UNIMOD" fullName="UNIMOD Protein Modifications for Mass Spectrometry" version="0.0" address="http://www.unimod.org/" /> 
     <description> 
      <admin> 
       <sampleName>GPM06600002310</sampleName> 
       <sampleDescription comment="Ho, Y., et al., Systematic identification of protein complexes in Saccharomyces cerevisiae by mass spectrometry. Nature. 2002 Jan 10;415(6868):180-3."> 
        <cvParam cvLabel="NEWT" accession="4932" name="Saccharomyces cerevisiae (Baker's yeast)" value="Saccharomyces cerevisiae" /> 
       </sampleDescription> 
          </admin> 
     </description> 
     <spectrumList count="0" /> 
    </mzData> 
     </Experiment>

我要拿出在「標題」，「ProtocolName」之間的文本，和「SampleName」並保存到與.xml.gz具有相同名稱的文本文件中。我至今（基於職位我在這個網站看到）下面的代碼，但它似乎沒有工作：

require 'rubygems' 
require 'nokogiri' 
doc = Nokogiri::XML(File.open("PRIDE_Exp_Complete_Ac_10094.xml.gz")) 
@ExperimentCollection = doc.css("ExperimentCollection Title").map {|node| node.children.text }

有人能幫助我嗎？

感謝

來源

2010-07-01 Bobby

關於'請刪除我'留下您的問題的地方（在我回滾到問題之前），您可以通過使用問題文本下面的鏈接刪除您自己的問題（你應該看到類似於：'edit | close | delete'），如果你想刪除它，你可以自由地這樣做，因爲**你擁有這個問題。我回滾了它，因爲它似乎是合法的，值得回答。如果您已經解決了您的問題，請發佈您的解決方案。否則，請花時間讓人們看到它，並提供幫助。 – 2010-07-01 17:50:15

如果你很高興與REXML，而且也只有一個<Experiment>每個文件，然後像下面應該幫助...（順便說一下，上面的文字是無效的XML，因爲沒有結束<ExperimentCollection>標籤）

require "rexml/document" 
include REXML 
xml=<<EOD 
<Experiment> 
    <ExperimentAccession>1015</ExperimentAccession> 
    <Title>Protein complexes in Saccharomyces cerevisiae (GPM06600002310)</Title> 
    <ShortLabel>GPM06600002310</ShortLabel> 
    <Protocol> 
     <ProtocolName>None</ProtocolName> 
    </Protocol> 
    <mzData version="1.05" accessionNumber="1015"> 
     <cvLookup cvLabel="RESID" fullName="RESID Database of Protein Modifications" version="0.0" address="http://www.ebi.ac.uk/RESID/" /> 
     <cvLookup cvLabel="UNIMOD" fullName="UNIMOD Protein Modifications for Mass Spectrometry" version="0.0" address="http://www.unimod.org/" /> 
     <description> 
      <admin> 
       <sampleName>GPM06600002310</sampleName> 
       <sampleDescription comment="Ho, Y., et al., Systematic identification of protein complexes in Saccharomyces cerevisiae by mass spectrometry. Nature. 2002 Jan 10;415(6868):180-3."> 
        <cvParam cvLabel="NEWT" accession="4932" name="Saccharomyces cerevisiae (Baker's yeast)" value="Saccharomyces cerevisiae" /> 
       </sampleDescription> 
          </admin> 
     </description> 
     <spectrumList count="0" /> 
    </mzData> 
     </Experiment> 
EOD 

doc = Document.new xml 
doc.elements["Experiment/Title"].text 
doc.elements["Experiment/Protocol/ProtocolName"].text 
doc.elements["Experiment/mzData/description/admin/sampleName"].text

來源

2010-07-05 04:26:10 Straff

用Ruby和Nokogiri處理XML文件

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