Regular Expressions 101

Explanation

Pro

^start of line

Non-Capturing Group(?:\d{1,3}\h+)?

?repeats the group contents below at most once:

\d{1,3}a digit, repeated between 1 and 3 times

\h+any horizontal whitespace character, repeated at least once

Negated Character Class[^\d\s]

\da digit

\sany whitespace character

\S+any non-whitespace character, repeated at least once

Non-Capturing Group(?:\h+\S{2,}){0,3}

{0,3}repeats the group contents below between 0 and 3 times:

\h+any horizontal whitespace character, repeated at least once

\S{2,}any non-whitespace character, repeated at least 2 times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

^(?:\d{1,3}\h+)?[^\d\s]\S+(?:\h+\S{2,}){0,3}$

New

School
This is a School
1 This is a School
145 Is this a School
1450 Is this a School
This is Govt Hight School
This is the School
1 This is the School
145 Is this the School
123
This is a School=false 
This is the School=true

Substitution

School
This is a School
1 This is a School
145 Is this a School
1450 Is this a School
This is Govt Hight School
This is the School
1 This is the School
145 Is this the School
123
This is a School=false 
This is the School=true