Description: The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE has its own native API as well as a set of wrapper functions that correspond to the POSIX regular expression API.
The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE has its own native API, as well as a set of wrapper functions that correspond to the POSIX regular expression API. The PCRE library is free, even for building proprietary software.
PCRE was originally written for the Exim MTA , but is now used by many high-profile open source projects, including Apache , PHP , KDE , Postfix , and Nmap . PCRE has also found its way into some well known commercial products, like Apple Safari . Some other interesting projects using PCRE include Chicken , Onyx , Hypermail , Leafnode , Askemos , Wenlin , and 8th .
There are two major versions of the PCRE library. The current version, PCRE2, released in 2015, is now at version 10.39 .
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