Regular Expressions 101

Pro

(?m)applies the following effective flags to the remainder of the pattern: gsm

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

^start of line

CurrentTime=the literal text CurrentTime= (case sensitive)

Group 1([^\n]*)

Negated Character Class[^\n]*

*matches any number of characters outside the set below:

\na line-feed (newline) character (ASCII 10)

Group 2(.*?)

.*?any character, repeated any number of times

Positive Lookahead(?=^CurrentTime=|\z)

1st Alternative^CurrentTime=

^start of line

CurrentTime=the literal text CurrentTime= (case sensitive)

2nd Alternative\z

\zend of string

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?m)^CurrentTime=([^\n]*)\n(.*?)(?=^CurrentTime=|\z)

New

CurrentTime=04/24/16 09:57:23
san-ls-02022;ENEXRHO;1505;{call Pm_I_AuthFailToPTSF(631706,-21,?)}
ass
bbbb
CurrentTime=04/24/16 09:57:23
631706
aaa
bbb

Extraction

CurrentTime=04/24/16 09:57:23
san-ls-02022;ENEXRHO;1505;{call Pm_I_AuthFailToPTSF(631706,-21,?)}
ass
bbbb
CurrentTime=04/24/16 09:57:23
631706
aaa
bbb