在 XML 文件中搜索属性值 [英] Search attribute value in XML file
问题描述
我需要在包含唯一字符串的 XML 文件中搜索字符串
I need to search strings in an XML file that contains a unique string
<CSVName Value="standard.csv" />
此值在standard.csv"和non-standard.csv"之间变化.
This value changes between "standard.csv" and "non-standard.csv".
我正在使用 VBScript 来搜索standard.csv"或non-standard.csv".如果它匹配standard.csv"，它会回应我这是标准的"，如果它匹配非标准.csv"，它会回应我这是非标准的".
I am using VBScript to search "standard.csv" or "non-standard.csv". If it matches "standard.csv" it will echo me "This is standard", if it matches "non-standard.csv" it will echo me "This is non-stanadard".
这是我单击按钮时此功能的 HTA 的一部分，我不知道如何制作匹配A"或B"的正则表达式模式，然后相应地回显每个.
This is part of my HTA for this function when clicking a button, I dont know how to make pattern of reg exp for matching "A" or "B" then echo each accordingly.
<html>
<head>
<title></title>
<HTA:APPLICATION
APPLICATIONNAME=""
ID=""
VERSION="1.0"/>
</head>
<script language="VBScript">
ub RUNCURRENTMODE
Const ForReading = 1
Set objRegEx = CreateObject("VBScript.RegExp")
objRegEx.Pattern = (?:"standard.csv"|"non-standard.csv")
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFile = objFSO.OpenTextFile("C:\aaa\settings.xml", ForReading)
strSearchString = objFile.ReadAll
objFile.Close
If
.
.
.
End If
End Sub
</script>
<body bgcolor="buttonface">
<center>
<p><font face="verdana" color="red">CSV MODE SWITCH</font></p>
YOU ARE CURRENTLY IN STANDARD CSV MODE <p>
<input id=runbutton class="button" type="button" value="CURRENT MODE" name="db_button" onClick="RUCURRENTMODE" style="width: 170px"><p>
</center>
</body>
</html>
推荐答案
为了回答直接的问题，Pattern 属性需要一个字符串，所以你必须改变这个:
To answer the immediate question, the Pattern property expects a string, so you'd have to change this:
objRegEx.Pattern = (?:"standard.csv"|"non-standard.csv")
进入这个:
objRegEx.Pattern = "(?:standard\.csv|non-standard\.csv)"
您甚至可以将表达式简化为:
You could even simplify the expression to this:
objRegEx.Pattern = "(?:non-)?standard\.csv"
但是，显然您那里有一个 XML 文件，因此您不应该为此使用正则表达式第一名.使用实际的 XML 解析器来提取信息:
However, apparently you have an XML file there, so you shouldn't be using regular expressions for this in the first place. Use an actual XML parser to extract the information:
Set xml = CreateObject("Msxml2.DOMDocument.6.0")
xml.async = False
xml.load "C:\aaa\settings.xml"
If xml.ParseError Then
MsgBox xml.ParseError.Reason
self.Close() 'or perhaps "Exit Sub"
End If
For Each n In xml.SelectNodes("//CSVName")
Select Case n.Attributes.GetNamedItem("Value").Text
Case "standard.csv" : MsgBox "This is standard."
Case "non-standard.csv" : MsgBox "This is non-standard."
Case Else : MsgBox "Unexpected value."
End Select
Next
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