/[webpac]/openisis/current/doc/fst.txt
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Contents of /openisis/current/doc/fst.txt

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Revision 237 - (show annotations)
Mon Mar 8 17:43:12 2004 UTC (16 years, 7 months ago) by dpavlin
File MIME type: text/plain
File size: 1554 byte(s)
initial import of openisis 0.9.0 vendor drop

1 fst lines read
2 "tag tec mode,fmt",
3 where
4 - tag is the field number used in the index posting
5 - tec is the indexing technique (see below)
6 - mode is a Mmc formatting mode or, for tec 5..8, a prefixing format
7 - fmt is some format expression, typically a single field like v24
8
9
10 * formatting modes
11 indicated by Mmc, where m is a character indicating some translations,
12 and c is a character indicating the handling of case; default MPL
13
14 m
15 - P proof mode: no changes applied
16 - H heading mode: angle brackets are removed,
17 ^x is replaced as ';' for x=a, ',' for x=b..i, '.' for others
18 - D data mode: like heading mode plus '. ' after each field
19
20 c
21 - L lower case: no changes applied
22 - U upper case: (ASCII-)characters are converted to "uppercase" as listed
23 in the file ISISUC.TAB (a textfile containing 256 replacement byte values
24 like ... '096 065 066' ... in 16 lines of 16 numbers each)
25
26
27 * indexing techniques
28 - 0 one entry per line (format should produce appropriate newlines with /)
29 - 1 one entry per line or subfield (use proof mode MPx to retain ^x)
30 - 2 one entry per each term in <angle brackets> (use proof mode)
31 - 3 one entry per each term /between slashes/
32 - 4 one term per "word":
33 a word is a sequence of 'alphabetical characters' as listed in the file
34 ISISAC.TAB (a textfile containing numbers like ... '098 099 100 101' ...).
35 "stopwords" (listed in the db's .stw-file) are ignored
36 - 5..8 like 1..4, but instead of applying a mode Mmc,
37 every entry with delimiter 'd' is given a prefix 'p' like
38 1 8 '/TI=/',v24 (prefix //-entries with TI=)

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