Replace underscore between words (reg.exp)

Posted by lasseespeholt on Stack Overflow See other posts from Stack Overflow or by lasseespeholt
Published on 2010-03-08T17:53:41Z Indexed on 2010/03/08 18:21 UTC
Read the original article Hit count: 289

Filed under:

regex

|

replace

|

jQuery

|

java

|

xslt

Hey,

I need a regular expression to solve the following problem (links to similar problems is also appreciated, related tutorials etc.):

__some_words_a_b___ => __some words a b___
____ => ____

So I want underscores between words to be replaced with space and keep leading and trailing underscores. I found this:

^[ \t]+|[ \t]+$

and I guess it most be something like that. I will use it in jQuery, Java (stdlibs) and maybe XSLT.

Addition: The sentences do not necessarily start with underscores or ends with underscores. It is also possible that a sentence ain't containing underscores at all.

Best regards Lasse Espeholt

© Stack Overflow or respective owner

Related posts about regex

Find multiple regex in each line and skip result if one of the regex doesn't match

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a list of variables: variables = ['VariableA', 'VariableB','VariableC'] which I'm going to search for, line by line ifile = open("temp.txt",'r') d = {} match = zeros(len(variables)) for line in ifile: emptyCells=0 for i in range(len(variables)): regex = r'('+variables[i]+r')[:|=|\(](-… >>> More
OWASP Regex Repository: Is this regex correct?

as seen on Stack Overflow - Search for 'Stack Overflow'
I was looking at the regular expression for validating various data types from the (OWASP Regex Repository). One of the regular expressions in there is called safetext and looks like: ^[a-zA-Z0-9\s.\-]+$ My first question is: Is this regular expression correct? complementary question If this… >>> More
Make a Perl-style regex interpreter behave like a basic or extended regex interpreter

as seen on Stack Overflow - Search for 'Stack Overflow'
I am writing a tool to help students learn regular expressions. I will probably be writing it in Java. The idea is this: the student types in a regular expression and the tool shows which parts of a text will get matched by the regex. Simple enough. But I want to support several different regex… >>> More
JS regex isn't matching, even thought it works with a regex tester

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm writing a piece of client-side javascript code that takes a function and finds the derivative of it, however, the regex that's supposed to match with the power rule fails to work in the context of the javascript program, even though it sucessfully matches when it's used with an independent regex… >>> More
c# RegEx with "|"

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to be able to check for a pattern with | in them. For example an expression like d*|*t should return true for a string like "dtest|test". I'm no regex hero so I just tried a couple of things, like: Regex Pattern = new Regex("s*\|*d"); //unable to build because of single backslash Regex Pattern… >>> More

Related posts about replace

How to replace text defined in a given tag or element using xslt, xslt string replace

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All, Please help me with this xslt transformation. Source Xml <xml> <test>This is a <bold>sample</bold> description. Please help me with a sample</text> </xml> Expected Output: This is a sample description. Please help me with a sample I just need to make… >>> More
js - using replace method to replace html element

as seen on Stack Overflow - Search for 'Stack Overflow'
hi everyone! i have a question. I have a work this morning but i don't know how to do it. My work here (html): <div class="demo"> <p>this is demo text</p> </div> here is my JS : var tempdata = $(".demo").text(); var replacedata = tempdata.replace("text","<span>1234</span>"); Look… >>> More
python3: removing several chars from a string with a long chain of .replace().replace().replace()

as seen on Stack Overflow - Search for 'Stack Overflow'
I found this example on stack overflow. I understand it, but seems like a bit much for such a simple method concept... removing several chars from a string. import string exclude = set(string.punctuation) s = ''.join(ch for ch in s if ch not in exclude) is there a builtin string method in python… >>> More
APC UPS replace battery light and apcupsd reporting "replace battery"

as seen on Server Fault - Search for 'Server Fault'
We have an APC Smart UPS 1500. The "Replace Battery" light is on, and apcupsd reports: Emergency! Batteries have failed on UPS xxxx. Change them NOW However, from this article, http://sturgeon.apcc.com/kbasewb2.nsf/for+external/f39c4312fcaf7b948525679a005ebb78?OpenDocument it seems that it's… >>> More
Using Regex.Replace() to replace text in a string

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I want to use Regex.Replace() to loop through a string containing words that are separated by '//' to check if any of the words match a string value which has been passed to the method. Here's my code at the moment: public void CheckText(string text) { //Check text entered by… >>> More