Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Regex Pattern

Posted on 2006-07-11
2
Medium Priority
?
305 Views
Last Modified: 2010-04-23
Hi. I have a text file with the following structure.

field1|field2|field3|field4

I am reading the complete text file to one string.

As you can see, fields are seperated by "|". What I want to do is a search in this text file. File contains more than 2000 rows. For the speed problems, I down want to use loop structure. If it's possible, I want to use regex. But I dont know the pattern that I should use to search the specific value in the fields. For example I need the values of field1 which field3 contains "X1" or the values of filed4 where field2 is equal to "CA". "Contains" and "equal" verbs are important.

Thanks
0
Comment
Question by:gokhanoz
2 Comments
 
LVL 8

Accepted Solution

by:
plq earned 1000 total points
ID: 17081604
Personally I dislike regex because the expressions are hard to read and not understood my many programmers.

What about this

dim sBuffer as string = ReadTextFile("...")
dim sRecords() as string = sBuffer.Split(vbCrLf)
for i as integer = 0  to sRecord.Length - 1
   dim sRecord as string = sRecords(i)
   if sRecord(i) <> "" then
      dim sFields() as string = sRecord(i).Split("|")
      if sFields(3) = "X1" then
          bSearchFound = true
      end if
 ....

Maybe it can be done with regex, lets see what others say...
0
 

Author Comment

by:gokhanoz
ID: 17096989
I was waiting for REGEX answer, but your answer is also possible. So, thanks alot.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A while ago, I was working on a Windows Forms application and I needed a special label control with reflection (glass) effect to show some titles in a stylish way. I've always enjoyed working with graphics, but it's never too clever to re-invent …
It’s quite interesting for me as I worked with Excel using vb.net for some time. Here are some topics which I know want to share with others whom this might help. First of all if you are working with Excel then you need to Download the Following …
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…
We’ve all felt that sense of false security before—locking down external access to a database or component and feeling like we’ve done all we need to do to secure company data. But that feeling is fleeting. Attacks these days can happen in many w…

926 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question