regex101: PCRE (Legacy) Match Workspace

Group 1((?<=Project )\d{0,2})

Positive Lookbehind(?<=Project )

Project the literal text Project (case insensitive)

\d{0,2}a digit, repeated between 0 and 2 times

.*?any character, repeated any number of times

Group 2(FOAH|PRJ)

1st AlternativeFOAH

FOAHthe literal text FOAH (case insensitive)

2nd AlternativePRJ

PRJthe literal text PRJ (case insensitive)

Group 3(\d{1,10})

\d{1,10}a digit, repeated between 1 and 10 times

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Search reference

Regular Expression

((?<=Project )\d{0,2}).*?(FOAH|PRJ)(\d{1,10})

New

C:\temp\TimeSheet\11-06-2017.txt:1:11/06/2017 18:45:56 - This 15 minutes is dedicated to PROJECT 100 FOAH18
C:\temp\TimeSheet\11-06-2017.txt:2:11/06/2017 18:45:58 - This 15 minutes is dedicated to PROJECT 90 FOAH278  
C:\temp\TimeSheet\11-06-2017.txt:3:11/06/2017 18:45:59 - This 15 minutes is dedicated to PROJECT 80 FOAH313  
C:\temp\TimeSheet\11-06-2017.txt:4:11/06/2017 18:46:00 - This 15 minutes is dedicated to PROJECT 70 PRJ0031905 
C:\temp\TimeSheet\11-06-2017.txt:5:11/06/2017 18:46:02 - This 15 minutes is dedicated to PROJECT 60 PRJ0031909  C:\temp\TimeSheet\11-06-2017.txt:6:11/06/2017 18:46:03 - This 15 minutes is dedicated to PROJECT 50 PRJ0032045