Regular Expressions 101

Positive Lookbehind(?<='constant_string' \: )

'constant_string' the literal text 'constant_string' (case sensitive)

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Group 1([A-Za-z0-9_])*

*repeats the group contents below any number of times:

Character Class[A-Za-z0-9_]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?<='constant_string' \: )([A-Za-z0-9_])*

New

'constant_string' : s
'constant_string' : some_string
'constant_string' : some_string
'constant_string' : some_string

'constant_string' : s
'constant_string' : some_string
'constant_string' : some_string
'constant_string' : some_string