Regular Expressions 101

1st Alternative(.*)(St\.\s\w+)

Group 1(.*)

.*any character (except for line terminators), repeated any number of times

Group 2(St\.\s\w+)

Stthe literal text St (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sany whitespace character

\w+any word character, repeated at least once

2nd Alternative(St\.\s\w+\s(.*))$

Group 3(St\.\s\w+\s(.*))

Stthe literal text St (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sany whitespace character

\w+any word character, repeated at least once

\sany whitespace character

Group 4(.*)

.*any character (except for line terminators), repeated any number of times

$end of line

Global pattern flags

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

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

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Search reference

Regular Expression

(.*)(St\.\s\w+)|(St\.\s\w+\s(.*))$

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