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by: ST Wong |
last post by:
Hi all,
As metacharaters ^ and $ are not used in regular expression in XML,
I'm looking for how to specify empty string.
Would anyone please help?
Thanks a lot.
Regards,
ST Wong
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by: Mark Downes |
last post by:
I need to split a string based on a character, such as a space (0x20).
The caveat is that I need to ignore the character if it is found
between a pair of some other characters, such as single-quotes. For
example (where _ denotes a space character):
ab_cd_'ef'_'g_h'_i_'j_k_l'
I should get back
ab
cd
ef
g_h
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by: Daniel |
last post by:
I would like to get some help on regular expression to validate
decimal numbers. It should also match negative value, empty value.
The expression:
^(\-){0,1}({1}{0,8}(\,{3})*(\.{0,8})?|{1}{0,}(\.{0,8})?|0(\.{0,8})?|(\.{1,8})?)$
is doing this job, but matches a single hyphen "-" also.
For example: matches -12.34 but also matches -
I need help to have this expression modified to unmatch single hyphen
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by: John . |
last post by:
I am using the Regular Expression Validator control to validate a
correct email address. But, at the same time I would like to make it a
required field.
I tested by using just the regular expression validator expecting a
message to be displayed but it let me submit the form. Do I have to use
both?
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by: cleo |
last post by:
I'm experimenting with Regular Expressions and Windows Forms.
Frequently I want a value to be either a valid pattern or empty. For
example a Zip code must be 5 digits or may be empty. I know that I can use
the Regular Expression "\d{5}" to test for exactly 5 digits. How can I add
the option for the string to be empty or must I always test the value before
calling the Regular Expression?
Thanks
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by: John |
last post by:
I am new in Regular Expression. Could someone please help me in following
expression?
1. the string cannot be empty
2. the string can only contains AlphaNumeric characters. No space or any
special characters are allowed
3. space characters at the end of string is ok
4. the string cannot contains only numeric characters, in other word, the
string must contains a least one alpha character
Thanks for the help
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by: Brian Kitt |
last post by:
I have a process where I do some minimal reformating on a TAB delimited
document to prepare for DTS load. This process has been running fine, but I
recently made a change. I have a Full Text index on one column, and
punctuation in the column was causing some problems down the line. This
column is used only for full text indexing, and otherwise ignored. I decided
to use the following regular expression to remove all punctuation (actually...
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by: JJ |
last post by:
I need the data passed in from the textbox to be in a certain format, eg
xxx-xxx or empty string. What is the regular expression syntax for that?
Thanks
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by: PJ6 |
last post by:
Is it possible for a regular expression to macth only an empty string? What
I want is exactly {0}, but that causes the parser to throw an exception -
parsing "{0}" - Quantifier {x,y} following nothing.
Duh, I want nothing. Maybe I need an expression that evaluates to "not
anything?" I can't find that either.
Paul
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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, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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 tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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