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diff --git a/contrib/gperf/README b/contrib/gperf/README new file mode 100644 index 0000000..26ace32 --- /dev/null +++ b/contrib/gperf/README @@ -0,0 +1,28 @@ +While teaching a data structures course at University of California, +Irvine, I developed a program called GPERF that generates perfect hash +functions for sets of key words. A perfect hash function is simply: + + A hash function and a data structure that allows + recognition of a key word in a set of words using + exactly 1 probe into the data structure. + +The gperf.texinfo file explains how the program works, the form of the +input, what options are available, and hints on choosing the best +options for particular key word sets. The texinfo file is readable +both via the GNU emacs `info' command, and is also suitable for +typesetting with TeX. The texinfo.tex macros needed to run +gperf.texinfo through TeX are available in the GNU GCC release. If +you don't have access to these please email me and I'll send them to +you (about 75k). + +The enclosed Makefile creates the executable program ``gperf'' and +also runs some tests. + +Output from the GPERF program is used to recognize reserved words in +the GNU C, GNU C++, and GNU Pascal compilers, as well as with the GNU +indent program. + +Happy hacking! + +Douglas C. Schmidt +schmidt@ics.uci.edu |