Regular Expressions 101

Group 1(AAD|TMLB|RECHNX|RR4HNX)

1st AlternativeAAD

AADthe literal text AAD (case sensitive)

2nd AlternativeTMLB

TMLBthe literal text TMLB (case sensitive)

3rd AlternativeRECHNX

RECHNXthe literal text RECHNX (case sensitive)

4th AlternativeRR4HNX

RR4HNXthe literal text RR4HNX (case sensitive)

Global pattern flags

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

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(AAD|TMLB|RECHNX|RR4HNX)

Test String
New

LTUS41 KCAR 141558 AAD TMLB Forecast for the National Parks 
KHNX 141001 RECHNX Weather Service San Joaquin Valley
LTUS41 KCAR 141558 AAD RR4HNX
LTUS41 KCAR 141558 AAD RECHNX

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
Processing...