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Home: Perl Programming Help: Regular Expressions: Corrected - Please read again: Regexp to remove a matched pattern but...: Edit Log

Chupo_cro
Novice

Aug 25, 2012, 5:19 AM

Views: 7219

Corrected - Please read again: Regexp to remove a matched pattern but...

Can someone, please, help me to construct the regexp to remove the matched pattern from the string, but to avoid more than one space in the resulting string at the boundaries of the removed substring. All of the remaining substring should stay untouched.

Note: The blue text is a condition I forgot to insert in the inital text.

Example:

Code

Input: 
 
one two some_pattern three four 
one two    some_pattern     three four 
one twosome_pattern     three four 
one two    some_patternthree four 
one two three four some_pattern 
some_pattern  one two three four 
onetwosome_patternthreefour 
one   two some_pattern three       four 
 
Desired output: 
 
one two three four 
one two three four 
one two three four 
one two three four 
one two three four 
one two three four 
onetwothreefour 
one    two three       four

Just removing the

Code

some_pattern

from the

Code

one two some_pattern three four

would result in the string

Code

one two  three four

which has two consecutive spaces.
Chupo_cro

(This post was edited by Chupo_cro on Aug 25, 2012, 9:34 AM)

Edit Log:
Post edited by Chupo_cro (Novice) on Aug 25, 2012, 6:39 AM
Post edited by Chupo_cro (Novice) on Aug 25, 2012, 6:42 AM
Post edited by Chupo_cro (Novice) on Aug 25, 2012, 9:30 AM
Post edited by Chupo_cro (Novice) on Aug 25, 2012, 9:34 AM
Post edited by Chupo_cro (Novice) on Aug 25, 2012, 9:34 AM

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