%% https://www.erlang.org/doc/apps/stdlib/re.html
%% https://erikarow.land/notes/using-erlang-re
%% https://zotonic.com/cookbook/1601/just-enough-regular-expressions-in-erlang

%% Erlang supports regular expressions through its standard library "re" module,
%% which, as of Erlang/OTP 28, uses the modern PCRE2 library).
%% The "regexp" module is obsolete and should not be used.

%% Match:
re:run("The quick brown fox.", "ick").
re:run(<<"Слово по-русски!."/utf8>>, <<"усс"/utf8>>).

%% Replace:
re:replace("Hello world and universe!", "e", "E", [global]).
re:replace(<<"Слово по-русски!."/utf8>>, <<"[Cc]лово"/utf8>>, <<"Фраза"/utf8>>).

%% Split:
re:split("apple,orange,grapefruit,mango,persimmon", ",").
re:split(<<"рис№пшено№нут"/utf8>>, <<"№"/utf8>>).

%% Options.
%% Functions in re module often accept an optional list of options.

%% {capture, all, list}: Returns captured parts as strings (or binaries),
%% instead of {Offset, Length} tuples.

%% global: Used with re:run or re:replace to find/replace all occurrences in the
%% subject string, not just the first one.

%% caseless: Makes the matching case-insensitive.

%% Extra info:
%% timer:sleep(5000), timer:seconds(5), timer:minutes(5), timer:hours(5).