Henry Spencer - Free Software Contributions

Free Software Contributions

Henry Spencer helped Geoff Collyer write C News in 1987.

At around the same time he wrote a non-proprietary replacement for regex(3), the Unix library for handling regular expressions, and made it freely available. Spencer's library has been used in many software packages, including Tcl, and adapted for others, including early versions of Perl.

Spencer was technical lead on the FreeS/WAN project, implementing an IPsec cryptographic protocol stack for Linux.

He also wrote 'aaa' - the Amazing Awk Assembler which is one of the longest and most complex programs ever written in the awk programming language.

He also developed a 4 point font used by entomologists in labeling pinned insect specimens.

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