# Syntax provider profile

Regex Tools has one public profile:

```text
community
```

It uses only reviewed open-source dependencies and builds without private
registry credentials. ECMAScript uses regexpp 4.12.2. PCRE2 uses an
application-owned lexical provider for partial explanations and the actual
bundled PCRE2 compiler for authoritative acceptance. Python and Java use
application-owned lexical providers for partial explanations and
flavour-native replacement tokens; bundled CPython `re` and TeaVM
`java.util.regex` respectively remain authoritative for compilation.
The Java provider follows the bundled TeaVM 0.15.0 replacement subset:
single-digit `$n` is executable, `$12` is `$1` followed by literal `2`, and
Java SE `${name}` references are surfaced as a compatibility limitation.

The product deliberately does not implement or reference an `@r101/parser`
profile. No commercial package alias, import, tarball, credential, licence key
or private CI path exists. Additional flavour syntax is implemented
incrementally as open-source providers behind the same application-owned
interface. Partial coverage is exposed as metadata and never presented as a
complete parser.