Do I need positve lookbehind?

Question

I am looking for some help to put a REGEX expression together that will return the contents between ROUTINE and END_ROUTINE

I have tried

ROUTINE S[0-9]{1,5}_[A-Z0-9_]* ([\s\S]*)?(?=END_ROUTINE

)

But it doesnt seem to provide the correct output

        ROUTINE S7026_HMI_LB0_SP_MAX 
            RC: "===================================================================================================$N"
                "$N"
                "Local HMI Station B Setpoint Commands Max Clamp$N"
                "$N"
                "===================================================================================================";
            N: NOP();
    END_ROUTINE

    ROUTINE S0100_DIAGNOSTICS 
            N: JSR(S0101_PLC_Diagnostics,0);
            N: JSR(S0102_IO_Diagnostics,0);
    END_ROUTINE

`[\s\S]*` must be written as `[\s\S]*?` – Wiktor Stribiżew Jul 25 '21 at 23:51 — Wiktor Stribiżew, Jul 25 '21 at 23:51

bvdb · Answer 1 · 2021-07-25T23:55:58.100

0

It could be enough to add a modifier U to make it ungreedy.

/ROUTINE(.+)END_ROUTINE/sU

(you can test it here: https://regex101.com/r/U2MM6G/1)

Alternatively, you can also do this more specifically:

/ROUTINE(.+?)END_ROUTINE/s

edited Jul 25 '21 at 23:55

answered Jul 25 '21 at 23:44

bvdb

22,839
10
110
123

Do I need positve lookbehind?

1 Answers1