Finding Similar Words (like bat, cat, mat)using regular expressions with .net
In this regular expression we are going to find out Similar Words like bat, cat, mat, and rat. Just take a look at above words they all same ending "at".
\b[a-zA-Z](at\b)
First or last character in a word
Any character in this class: [a-zA-Z]
[1]: A numbered capture group. [at\b]
at\b
at
First or last character in a word
Finding Variations in a Words using regular expressions with .net
In this regular expression we are going to find out variations in a Words like John, Johny, Jon, Jonathan. Just take a look at above words they all same begining "jo".
\b[jJ]o\w*\b
First or last character in a word
Any character in this class: [jJ]
o\w*\b
o
Alphanumeric, any number of repetitions
First or last character in a word
John
Johny
Jon
Jonathan
joiee
Finding words or String with same beginning and end using regular expressions with .net
In this regular expression we are going to find words or String with same beginning and end. Means we are going to search words like xerox with same beginning and end "x".
\b(?<First>\w{1,})(?<Second>\w+)(?(Second)\k<First>)\b
First or last character in a word
[First]: A named capture group. [\w{1,}]
Alphanumeric, at least 1 repetitions
[Second]: A named capture group. [\w+]
Alphanumeric, one or more repetitions
Conditional Expression with "Yes" clause only
Did the capture named [Second] match?
If yes, search for [\k<First>]
Backreference to capture named: First
First or last character in a word
xerox
404
rotor
rotor
ISAPI
Finding all words starting with “re” using regular expressions with .net
In this regular expression we are going to find all words starting with "re". Means we are going to search words beginning(first two character) will be "re".
(\bre)\w+\b
[1]: A numbered capture group. [\bre]
\bre
First or last character in a word
re
\w+\b
Alphanumeric, one or more repetitions
First or last character in a word
replace
regex
regular
Finding all words ending with “ing” using regular expressions with .net
In this regular expression we are going to find all words ending with "ing". Means we are going to search words ending(last three character) will be "ing".
\b\w+(ing\b)
\b\w+
First or last character in a word
Alphanumeric, one or more repetitions
[1]: A numbered capture group. [ing\b]
ing\b
ing
First or last character in a word
processing
programming
scripting
