Regular Expressions 101

Pro

SELECTthe literal text SELECT (case sensitive)

Group 1(.+)

.+any character (except for line terminators), repeated at least once

FROM the literal text FROM (case sensitive)

Group 2(\w)+

+repeats the group contents below at least once:

\wany word character

WHERE the literal text WHERE (case sensitive)

Group 3(.+)

.+any character (except for line terminators), repeated at least once

REGION the literal text REGION (case sensitive)

Group 4(\w+)

\w+any word character, repeated at least once

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

SELECT(.+)FROM (\w)+ WHERE (.+) REGION (\w+)

SELECT chr, pos FROM variants 
SELECT chr, pos FROM variants WHERE chr=3
SELECT chr, pos FROM variants WHERE chr=3 REGION exonic 
SELECT chr, pos FROM variants REGION exonic