4.3BSD - /usr/man/cat1/lookbib.0

LOOKBIB(1)                                                          LOOKBIB(1)


NAME
       indxbib, lookbib - build inverted index for a bibliography, find refer‐
       ences in a bibliography

SYNOPSIS
       indxbib database  ...
       lookbib [ -n ] database

DESCRIPTION
       Indxbib makes an inverted index to the named databases (or  files)  for
       use by lookbib(1) and refer(1).  These files contain bibliographic ref‐
       erences (or other kinds of information) separated by blank lines.

       A bibliographic reference is a set of  lines,  constituting  fields  of
       bibliographic  information.  Each field starts on a line beginning with
       a ‘‘%’’, followed by a key-letter, then a blank, and finally  the  con‐
       tents  of  the  field,  which may continue until the next line starting
       with ‘‘%’’.

       Indxbib  is  a  shell  script  that   calls   /usr/lib/refer/mkey   and
       /usr/lib/refer/inv.   The  first  program,  mkey,  truncates words to 6
       characters, and maps upper case to lower case.  It also discards  words
       shorter  than  3  characters,  words  among the 100 most common English
       words, and numbers (dates) < 1900 or > 2000.  These parameters  can  be
       changed;  see  page  4  of the Refer document by Mike Lesk.  The second
       program, inv, creates an entry file (.ia), a posting file (.ib), and  a
       tag file (.ic), all in the working directory.

       Lookbib  uses an inverted index made by indxbib to find sets of biblio‐
       graphic references.  It reads keywords typed after the ‘‘>’’ prompt  on
       the  terminal, and retrieves records containing all these keywords.  If
       nothing matches, nothing is returned except another ‘‘>’’ prompt.

       Lookbib will ask if you need instructions, and will  print  some  brief
       information  if  you reply ‘‘y’’.  The ‘‘-n’’ flag turns off the prompt
       for instructions.

       It is possible to search multiple databases, as long  as  they  have  a
       common  index  made  by indxbib.  In that case, only the first argument
       given to indxbib is specified to lookbib.

       If lookbib does not find the index files (the .i[abc] files), it  looks
       for  a  reference  file with the same name as the argument, without the
       suffixes.  It creates a file with a ’.ig’ suffix, suitable for use with
       fgrep.   It  then uses this fgrep file to find references.  This method
       is simpler to use, but the .ig file is slower to use than  the  .i[abc]
       files, and does not allow the use of multiple reference files.

FILES
       x.ia,  x.ib,  x.ic,  where x is the first argument, or if these are not
       present, then x.ig, x

SEE ALSO
       refer(1), addbib(1), sortbib(1), roffbib(1), lookbib(1)

BUGS
       Probably all dates should be indexed, since many disciplines  refer  to
       literature written in the 1800s or earlier.


4.2 Berkeley Distribution       April 29, 1985                      LOOKBIB(1)