Regular Expressions 101

Explanation

Pro

Group 1(label\s\d{1,4}\sstart(\s*explanation)(.*?)up\sup\s*exit)

labelthe literal text label (case sensitive)

\sany whitespace character

\d{1,4}a digit, repeated between 1 and 4 times

\sany whitespace character

startthe literal text start (case sensitive)

Group 2(\s*explanation)

\s*any whitespace character, repeated any number of times

explanationthe literal text explanation (case sensitive)

Group 3(.*?)

.*?any character, repeated any number of times

upthe literal text up (case sensitive)

\sany whitespace character

upthe literal text up (case sensitive)

\s*any whitespace character, repeated any number of times

exitthe literal text exit (case sensitive)

Global pattern flags

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

s modifier: single line. Allows a dot to match line terminators

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(label\s\d{1,4}\sstart(\s*explanation)(.*?)up\sup\s*exit)

label 123 start
    int
    some other random text
    exit
exit
label 576 start
    int
    some other random text
    exit
exit
label 888 start
    explanation jgfjgjgj
    some random text 
    exit
up up
exit
label 902 start
    explanation jgfjgjgj
    some random text 
    exit
up up
exit
label 456 start
    explanation jgfjgjgj
    some random text 
    exit
up up
exit