Regular Expressions 101

Pro

(?i)applies the following effective flags to the remainder of the pattern: gmi

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Positive Lookbehind(?<=(?<!\bst)\.)

Negative Lookbehind(?<!\bst)

\ban ASCII word boundary

stthe literal text st (case insensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\s+any whitespace character, repeated at least once

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

Detailed match information will be displayed here automatically.

25 tokens

(?i)(?<=(?<!\bst)\.)\s+

New

here is an axample with cases like st. moris and google.com here. second sentence.

\n

here is an axample with cases like st. moris and google.com here. second sentence.