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Regular Express Help Needed Please!

I have a reg exp pattern as below works fine for the string : <param name="url" value="contents/cf_intro.htm" valuetype="ref" >

mObjRegExp.patt ern="<param.+?v alue=""([^""]+)""

But the same is not working for

<param name="url" valuetype="ref" value="../fmmain/fmindex.htm"

note that, i want to capture the url that comes after value=". if the value=" comes in the second place in the html tag it works. but if it comes in the 3rd position, then it doesn't work.
Can anyone help me finding the problem and make it work for both?thanks in advance.
Jul 19 '05 #1
5 1436
"Raj.SB" <sgmuser#rediff mail.com> wrote in message
news:E4******** *************** ***********@mic rosoft.com...
I have a reg exp pattern as below works fine for the string : <param name="url" value="contents/cf_intro.htm" valuetype="ref" >.
mObjRegExp.patt ern="<param.+?v alue=""([^""]+)"""

But the same is not working for

<param name="url" valuetype="ref" value="../fmmain/fmindex.htm">

note that, i want to capture the url that comes after value=". if the value=" comes in the second place in the html tag it works. but if it
comes in the 3rd position, then it doesn't work. Can anyone help me finding the problem and make it work for

both?thanks in advance.

What does "not working" mean? Please show more code. I tested the
regular expression you provided and it behaves as expected.
Jul 19 '05 #2
Hi Thanks for the reply first

Not working means, the reg exp does not return the url in between the quotes after 'value=' from the following string
<param name="url" valuetype="ref" value="../fmmain/fmindex.htm"> . it works for this string
<param name="url" value="contents/cf_intro.htm" valuetype="ref" >

the only difference between these two is the string i try to capture comes second in the working one, but in the not working string it comes as the third. am i explaining it clearly?
Jul 19 '05 #3
<%
strLine = "<param name=""url"" valuetype=""ref "" value=""content s/cf_intro.htm""> " 'will return nothing
strLine = "<param name=""url"" value=""content s/cf_intro.htm"" valuetype=""ref "">" 'will return 'contents/cf_intro.htm'
Set mObjRegExp = New RegExp
mObjRegExp.Igno reCase = True
mObjRegExp.Mult iLine = True
mObjRegExp.Glob al = True

If InStr(lcase(str Line),"<param name=""url"" value=") Then
Response.write "StrLine(PARAM) :"&strLine&"<BR >"

'mObjRegExp.pat tern="<param.+? value=""([^""]+)"""

Set mObjMatches = mObjRegExp.Exec ute(strLine)

If mObjMatches.Cou nt = 0 Then
Else
DescriptionPara m = mObjMatches.ite m(0).Value
If Len(Description Param) > 5 Then
DescriptionPara m = Mid(Description Param, InStr(1,Descrip tionParam, "value=""", vbTextCompare) + 7)
DescriptionPara m = Mid(Description Param, 1, InStr(1, DescriptionPara m, """", vbTextCompare)-1)
ParamFlag = 1
Else
ParamFlag = 0
End If
End If
Else 'Checking for Param applet links
End If 'Checking for Param applet links
Set mObjMatch = Nothing
Set mObjMatches = Nothing
Set mObjRegExp = Nothing
Response.write "<BR>test : " & DescriptionPara m & "<BR>"
%>
Jul 19 '05 #4
"Raj.SB" <an*******@disc ussions.microso ft.com> wrote in message
news:0B******** *************** ***********@mic rosoft.com...
<%
strLine = "<param name=""url"" valuetype=""ref "" value=""content s/cf_intro.htm""> " 'will return nothing strLine = "<param name=""url"" value=""content s/cf_intro.htm"" valuetype=""ref "">" 'will return 'contents/cf_intro.htm' Set mObjRegExp = New RegExp
mObjRegExp.Igno reCase = True
mObjRegExp.Mult iLine = True
mObjRegExp.Glob al = True

If InStr(lcase(str Line),"<param name=""url"" value=") Then
Response.write "StrLine(PARAM) :"&strLine&"<BR >"

'mObjRegExp.pat tern="<param.+? value=""([^""]+)"""

Set mObjMatches = mObjRegExp.Exec ute(strLine)

If mObjMatches.Cou nt = 0 Then
Else
DescriptionPara m = mObjMatches.ite m(0).Value
If Len(Description Param) > 5 Then
DescriptionPara m = Mid(Description Param, InStr(1,Descrip tionParam, "value=""", vbTextCompare) + 7) DescriptionPara m = Mid(Description Param, 1, InStr(1, DescriptionPara m, """", vbTextCompare)-1) ParamFlag = 1
Else
ParamFlag = 0
End If
End If
Else 'Checking for Param applet links
End If 'Checking for Param applet links
Set mObjMatch = Nothing
Set mObjMatches = Nothing
Set mObjRegExp = Nothing
Response.write "<BR>test : " & DescriptionPara m & "<BR>"
%>


Your outer IF statement checks for the following:

InStr(lcase(str Line),"<param name=""url"" value=")

This check fails for the first strLine listed.

HTH
-Chris Hohmann
Jul 19 '05 #5
Chri
how silly iam...thanks!
Jul 19 '05 #6

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