regex101: Golang Match Workspace

Explanation

Pro

Group 1((S(?P<from_season>\d+))?(E(?P<from_episode>\d+))?)

Group 2(S(?P<from_season>\d+))?

?repeats the group contents below at most once:

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

Group from_season(?P<from_season>\d+)

\d+a digit, repeated at least once

Group 4(E(?P<from_episode>\d+))?

?repeats the group contents below at most once:

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

Group from_episode(?P<from_episode>\d+)

\d+a digit, repeated at least once

Group 6(((?P<dash>-)((S(?P<to_season>\d+))?(E(?P<to_episode>\d+))?))?)

Group 7((?P<dash>-)((S(?P<to_season>\d+))?(E(?P<to_episode>\d+))?))?

?repeats the group contents below at most once:

Group dash(?P<dash>-)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 9((S(?P<to_season>\d+))?(E(?P<to_episode>\d+))?)

Group 10(S(?P<to_season>\d+))?

?repeats the group contents below at most once:

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

Group to_season(?P<to_season>\d+)

\d+a digit, repeated at least once

Group 12(E(?P<to_episode>\d+))?

?repeats the group contents below at most once:

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

Group to_episode(?P<to_episode>\d+)

\d+a digit, repeated at least once

Group 14(,|$)

1st Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

2nd Alternative$

$end of string

Global pattern flags

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

Quick Reference

25 tokens

Regular Expression

((S(?P<from_season>\d+))?(E(?P<from_episode>\d+))?)(((?P<dash>-)((S(?P<to_season>\d+))?(E(?P<to_episode>\d+))?))?)(,|$)

New

{Series TitleYear} - S{season:00}E{episode:00} - {absolute:000} - {Episode CleanTitle} [{Custom Formats }{Quality Full}]{[MediaInfo VideoDynamicRangeType]}[{MediaInfo VideoBitDepth}bit]{[MediaInfo VideoCodec]}[{Mediainfo AudioCodec} { Mediainfo AudioChannels}]{MediaInfo AudioLanguages}{-Release Group}

Substitution

{Series TitleYear} - S{season:00}E{episode:00} - {absolute:000} - {Episode CleanTitle} [{Custom Formats }{Quality Full}]{[MediaInfo VideoDynamicRangeType]}[{MediaInfo VideoBitDepth}bit]{[MediaInfo VideoCodec]}[{Mediainfo AudioCodec} { Mediainfo AudioChannels}]{MediaInfo AudioLanguages}{-Release Group}