This library provides utilities for working with OpenAPI/JSON Schema regex patterns and format validation in Erlang. It translates JavaScript-style regexes to Erlang/PCRE2, and provides ready-to-use patterns for common OpenAPI formats. Compiled regexes are cached using persistent_term.

$ rebar3 compile

• compile_pattern/1,2 — Compile a JS/OpenAPI regex pattern to an Erlang regex (optionally strict/anchored). Returns MP or throws an exception.
• validate_format/2 — Check if a value is valid for a given OpenAPI format. Returns true or false.
• known_formats/0 — List all supported OpenAPI format names.

• compile/1,2 — Translate and compile JS regex to Erlang regex

• validate_format/2 — Validates whether or not a string matches the pattern for a known format
• known_formats/0 — List supported formats

email, uuid, date, date_time, ipv4, ipv6, hostname, uri, password, byte, int32, int64, float, double, binary, time

MP = oas_util:compile_pattern(<<"^foo[0-9]+bar$">>).
re:run(<<"foo123bar">>, MP).

MP = oas_util:compile_pattern(<<"foo">>, true).
re:run(<<"foo">>, MP). % matches
re:run(<<"xfoo">>, MP). % nomatch

oas_util:validate_format(email, <<"[email protected]">>). % true
oas_util:validate_format(email, <<"foo@">>). % false

oas_util:known_formats().

MIT License — see LICENSE.md