Regular Expressions 101

Group 1(\S)

\Sany non-whitespace character

\ban ASCII word boundary

Group 2((?:S\d+)?EP?\d+\b)

Non-Capturing Group(?:S\d+)?

?repeats the group contents below at most once:

Sthe literal S (83₁₀ / 123₈ / 53₁₆) (case sensitive)

\d+a digit, repeated at least once

Ethe literal E (69₁₀ / 105₈ / 45₁₆) (case sensitive)

P?optionally matches the literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

\d+a digit, repeated at least once

\ban ASCII word boundary

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.

Search reference

Regular Expression

(\S)\b((?:S\d+)?EP?\d+\b)

New

克隆人战争S01E02 2008.720p-CMCT

$1 $2