Needed: a public domain regular expression interpreter

[Henry Spencer]

In article <12817 at pucc.Princeton.EDU> EGNILGES at pucc.Princeton.EDU writes:
>I need an interpreter for regular expressions...
>     1.  It must be in C.
>     2.  It must be meet egrep rather than grep specifications.
>     3.  It must be in the public domain.
>     4.  It must be fully documented and of high quality.

If you're willing to settle for one that is freely redistributable --
"public domain" is a legal term with a very specific meaning, not a
synonym for "freely redistributable" -- my regexp package is widely
available, widely known, and widely used.
-- 
"We're thinking about upgrading from    | Henry Spencer @ U of Toronto Zoology
SunOS 4.1.1 to SunOS 3.5."              |  henry at zoo.toronto.edu  utzoo!henry