About ABNF to REGEX

The ABNF to REGEX library is a pair of PHP functions that validate standard ABNF (RFC 5234) input and generate POSIX and Perl-compatible regular expressions for use in schema and applications. The online form on this site uses it to provide a simple web-based front-end to these functions.

 

ABNF to REGEX v1.0 Feb 12, 2013

This is the first public release of my ABNF to REGEX library for PHP, along with a corresponding web page. ABNF to REGEX takes ABNF rules conforming to RFC 5234 and converts them to POSIX and Perl-compatible regular expressions for use in applications that need to validate input according to an ABNF rule set.

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