Regular Expressions 101

Positive Lookbehind(?<=_ABC_)

_ABC_the literal text _ABC_ (case sensitive)

Group date(?<date>\d*)

\d*a digit, repeated any number of times

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group time(?<time>\d*)

\d*a digit, repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group millisec(?<millisec>\d*)

\d*a digit, repeated any number of times

Positive Lookahead(?=\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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.

Search reference

Regular Expression

(?<=_ABC_)(?<date>\d*)_(?<time>\d*)\.(?<millisec>\d*)(?=\.)

New

test_ABC_19000101_010101.987.txt
t' az@ 0est_ABC_20000101_090101.123.txt
tes8as712t_ABC_21000101_080101.456.txt
te098d $st_ABC_22000101_070101.789.txt
[test]_ABC_23000101_060101.101.txt
t?\est_ABC_24000101_050101.112.txt

Regular Expression

Substitution