473,385 Members | 2,210 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,385 software developers and data experts.

Regular Expression Insanity

Don
I've created a regular expression to match everything from the word "const"
to the end of the last line that doesn't end in a space-underscore
characters.

i.e.
\sConst\s(.*)\sAs\s*String\s*=(.*\s_\n)*(.*\n)
applied to:
Friend const foo as string = "line1" & _
" line2" & _
" line3" & _
" line4" _
& " line5" & _
" end"
Friend const...
gives me:
const foo as string = "line1" & _
" line2" & _
" line3" & _
" line4" _
& " line5" & _
" end"
This works in the Regex Coach program I used to help me build the
expression, but when I bring this over to VB.NET, it only matches this:
"goodbye" & _

(with a hard return at the end)
Is there something wrong with the Regex Coach program in that is is
improperly executing my regular expression, or is VB.NET doing something
wrong?

Oh, and here's the code snippet that is retrieving the collection of Match
objects:
matches = Regex.Matches(sourceString, EXPRESSION, _
RegexOptions.IgnoreCase Or RegexOptions.Compiled)

(sourceString is the string I'm processing, and EXPRESSION is the
regular expression as listed above)
- Don
Nov 21 '05 #1
1 1309
Don
Okay. Two things:
1. It appears the program I was using to help me build the regular
expression -- RegEx Coach -- is not compatible with the regular expression
language used by .NET. Fortunately I found an alternative program called
Expresso ( http://www.ultrapico.com/Expresso.htm ) which was programmed for
..NET regular expressions. Program registration is free.
2. Take this you RegEx motherf$#%er! :

(\sConst\s(.*)\sAs\s*String\s*=)(.*\s_.*\n)*.*\n
- Don
Nov 21 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
by: Kenneth McDonald | last post by:
I'm working on the 0.8 release of my 'rex' module, and would appreciate feedback, suggestions, and criticism as I work towards finalizing the API and feature sets. rex is a module intended to make...
4
by: Buddy | last post by:
Can someone please show me how to create a regular expression to do the following My text is set to MyColumn{1, 100} Test I want a regular expression that sets the text to the following...
4
by: Neri | last post by:
Some document processing program I write has to deal with documents that have headers and footers that are unnecessary for the main processing part. Therefore, I'm using a regular expression to go...
11
by: Dimitris Georgakopuolos | last post by:
Hello, I have a text file that I load up to a string. The text includes certain expression like {firstName} or {userName} that I want to match and then replace with a new expression. However,...
7
by: Billa | last post by:
Hi, I am replaceing a big string using different regular expressions (see some example at the end of the message). The problem is whenever I apply a "replace" it makes a new copy of string and I...
25
by: Mike | last post by:
I have a regular expression (^(.+)(?=\s*).*\1 ) that results in matches. I would like to get what the actual regular expression is. In other words, when I apply ^(.+)(?=\s*).*\1 to " HEART...
9
by: Mark Rae | last post by:
Hi, This time, I'm looking for a regular expression which says "the string must contain exactly seven or exactly eight digits" e.g. 123456 fails 1234567 passes 12345678 passes 123456789...
1
by: Allan Ebdrup | last post by:
I have a dynamic list of regular expressions, the expressions don't change very often but they can change. And I have a single string that I want to match the regular expressions against and find...
1
by: NvrBst | last post by:
I want to use the .replace() method with the regular expression /^ %VAR % =,($|&)/. The following DOESN'T replace the "^default.aspx=,($|&)" regular expression with "":...
0
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
0
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.