replace keyword within html string
I am looking for a way to replace keywords within a html string with a variable. At the moment i am using the following example.
returnString = Replace(message, "[CustomerName]", customerName, CompareMethod.Text)
The above will work fine if the html block开发者_StackOverflow中文版 is spread fully across the keyword.
eg.
<b>[CustomerName]</b>
However if the formatting of the keyword is split throughout the word, the string is not found and thus not replaced.
e.g.
<b>[Customer</b>Name]
The formatting of the string is out of my control and isn't foolproof. With this in mind what is the best approach to find a keyword within a html string?
Try using Regex expression. Create your expressions here, I used this and it works well.
http://regex-test.com/validate/javascript/js_match
Use the text property instead of innerHTML if you're using javascript to access the content. That should remove all tags from the content, you give back a clean text representation of the customer's name.
For example, if the content looks like this:
<div id="name">
<b>[Customer</b>Name]
</div>
Then accessing it's text property gives:
var name = document.getElementById("name").text;
// sets name to "[CustomerName]" without the tags
which should be easy to process. Do a regex search now if you need to.
Edit: Since you're doing this processing on the server-side, process the XML recursively and collect the text element's of each node. Since I'm not big on VB.Net, here's some pseudocode:
getNodeText(node) {
text = ""
for each node.children as child {
if child.type == TextNode {
text += child.text
}
else {
text += getNodeText(child);
}
}
return text
}
myXml = xml.load(<html>);
print getNodeText(myXml);
And then replace or whatever there is to be done!
I have found what I believe is a solution to this issue. Well in my scenario it is working.
The html input has been tweaked to place each custom field or keyword within a div with a set id. I have looped through all of the elements within the html string using mshtml and have set the inner text to the correct value when a match is found.
e.g.
Function ReplaceDetails(ByVal message As String, ByVal customerName As String) As String
Dim returnString As String = String.Empty
Dim doc As IHTMLDocument2 = New HTMLDocument
doc.write(message)
doc.close()
For Each el As IHTMLElement In doc.body.all
If (el.id = "Date") Then
el.innerText = Now.ToShortDateString
End If
If (el.id = "CustomerName") Then
el.innerText = customerName
End If
Next
returnString = doc.body.innerHTML
return returnString
Thanks for all of the input. I'm glad to have a solution to the problem.
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