用Applescript解析XML並根據xml屬性引用標記塊

Question

在Applescript中，是否有一種方法僅基於標記屬性來抓取標記塊？例如，我只想抓取具有與其關聯的屬性'style'的標記塊。 （我包括縮短XML）

shortened xml file: 
<?xml version="1.0" encoding="utf-8" standalone="no"?> 
<templateDescription> 
    <toolbars> 
      <toolbarControls style="textToolbar"> 
      </toolbarControls> 
      <toolbarControls style="textToolbar"> 
      </toolbarControls> 
      <toolbarControls definition="image"> 
      </toolbarControls> 
     </toolbars> 
</templateDescription> 


    set XMLFile to "Macintosh HD:Users:<user>:Desktop:templateDescription.xml" 
     tell application "System Events" 
      set toolbarControls to XML elements of XML element "toolbars" of XML element 1 of contents of XMLFile 
      return every item of toolbarControls whose value of XML attribute "style" of XML element "toolbarControls" of XML element "toolbars" of XML element 1 of contents of XMLFile is "textToolbar" 
     end tell 

*新的併發症：所以，我才意識到，有些個XML使用意見，並有一個與系統事件如不能正確解析XML時，有評論一個已知的bug。有沒有辦法解決這個問題？

Answer 1

使用循環來抓取標記塊。

像這樣：

set XMLFile to "Macintosh HD:Users:<user>:Desktop:templateDescription.xml" 
set toolbarControls_textToolbar to {} 
tell application "System Events" 
    set toolbarControls to XML elements of XML element "toolbars" of XML element 1 of contents of XML file XMLFile 
    repeat with xmlElem in toolbarControls 
     try 
      tell xmlElem to if value of XML attribute "style" is "textToolbar" then set end of toolbarControls_textToolbar to contents 
     end try 
    end repeat 
end tell 
return toolbarControls_textToolbar -- return every XML element whose value of XML attribute "style" is "textToolbar"