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Diffstat (limited to 'gnu/usr.bin/ptx/examples/ignore/README')
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diff --git a/gnu/usr.bin/ptx/examples/ignore/README b/gnu/usr.bin/ptx/examples/ignore/README new file mode 100644 index 0000000..33ee19e --- /dev/null +++ b/gnu/usr.bin/ptx/examples/ignore/README @@ -0,0 +1,65 @@ +From beebe@math.utah.edu Wed Oct 27 19:37:22 1993 +Date: Tue, 26 Oct 93 15:43:19 MDT +From: "Nelson H. F. Beebe" <beebe@math.utah.edu> +To: pinard@iro.umontreal.ca +Subject: Re: Another short comment on gptx 0.2 + +/usr/lib/eign: DECstation 5000, ULTRIX 4.3 + HP 9000/735, HP-UX 9.0 + IBM RS/6000, AIX 2.3 + IBM 3090, AIX MP370 2.1 + Stardent 1520, OS 2.2 + Sun SPARCstation, SunOS 4.x + +No eign anywhere on: HP 375, BSD 4.3 (ptx.c is in /usr/src/usr.bin, + and the source code refers to /usr/lib/eign, + but I could not find it in the source tree) + NeXT, Mach 3.0 (though documented in man pages) + Sun SPARCstation, Solaris 2.x + SGI Indigo, IRIX 4.0.x + +The contents of the eign files that I found on the above machines were +almost identical. With the exception of the Stardent and the IBM +3090, there were only two such files, one with 150 words, and the +other with 133, with only a few differences between them (some words +in the 133-word file were not in the 150-word file). I found the +133-word variant in groff-1.06/src/indxbib. I used archie to search +for eign, and it found 7 sites, all with the groff versions. + +The Stardent and IBM 3090 eign files have the same contents as the +150-word version, but have a multiline copyright comment at the +beginning. None of the others contains a copyright. + +I recently had occasion to build a similar list of words for bibindex, +which indexes a BibTeX .bib file, and for which omission of common +words, like articles and prepositions, helps to reduce the size of the +index. I didn't use eign to build that list, but instead, went +through the word lists from 3.8MB of .bib files in the tuglib +collection on ftp.math.utah.edu:pub/tex/bib, and collected words to be +ignored. That list includes words from several languages. I'll leave +it up to you to decide whether you wish to merge them or not; I +suspect it may be a better design choice to keep a separate eign file +for each language, although in my own application of ptx-ing +bibliographies, the titles do occur in multiple languages, so a +mixed-language eign is appropriate. Since there are standard ISO +2-letter abbreviations for every country, perhaps one could have +eign.xy for country xy (of course, only approximately is country == +language). The exact list of words in eign is not so critical; its +only purpose is to reduce the size of the output by not indexing words +that occur very frequently and have little content in themselves. + +I'm enclosing a shar bundle at the end of this message with the merger +of the multiple eign versions (duplicates eliminated, and the list +sorted into 179 unique words), followed by the bibindex list. + + + +======================================================================== +Nelson H. F. Beebe Tel: +1 801 581 5254 +Center for Scientific Computing FAX: +1 801 581 4148 +Department of Mathematics, 105 JWB Internet: beebe@math.utah.edu +University of Utah +Salt Lake City, UT 84112, USA +======================================================================== + + |
