Name

       indxbib - make inverted index for bibliographic databases

Synopsis

       indxbib [-w] [-c common-words-file] [-d dir] [-f list-file] [-h min-hash-table-size] [-i excluded-fields]
               [-k max-keys-per-record] [-l min-key-length] [-n threshold] [-o file] [-t max-key-length]
               [file ...]

       indxbib --help

       indxbib -v
       indxbib --version

Description

       indxbib  makes  an  inverted  index  for  the bibliographic databases in each file for use with refer(1),
       lookbib(1), and lkbib(1).  Each created index is named file.i; writing is done to a temporary file  which
       is  then  renamed  to  this.  If no file operands are given on the command line because the -f option has
       been used, and no -o option is given, the index will be named Ind.i.

       Bibliographic databases are divided into records by blank lines.  Within a record, each field starts with
       a % character at the beginning of a line.  Fields have a one letter name that follows the % character.

       The values set by the -c, -l, -n, and -t options are stored in the index: when  the  index  is  searched,
       keys  will be discarded and truncated in a manner appropriate to these options; the original keys will be
       used for verifying that any record found using the index actually contains the keys.  This means  that  a
       user  of  an  index  need not know whether these options were used in the creation of the index, provided
       that not all the keys to be searched for would have been discarded during  indexing  and  that  the  user
       supplies  at  least  the part of each key that would have remained after being truncated during indexing.
       The value set by the -i option is also stored in the index and will be used in  verifying  records  found
       using the index.

Options

       --help displays a usage message, while -v and --version show version information; all exit afterward.

       -c common-words-file
              Read the list of common words from common-words-file instead of /usr/share/groff/1.23.0/eign.

       -d dir Use dir as the name of the directory to store in the index, instead of that returned by getcwd(2).
              Typically, dir will be a symbolic link whose target is the current working directory.

       -f list-file
              Read  the  files  to  be  indexed  from list-file.  If list-file is -, files will be read from the
              standard input stream.  The -f option can be given at most once.

       -h min-hash-table-size
              Use the first prime number greater than or equal to the argument for the size of the  hash  table.
              Larger  values  will  usually make searching faster, but will make the index file larger and cause
              indxbib to use more memory.  The default hash table size is 997.

       -i excluded-fields
              Don't index the contents of fields whose names  are  in  excluded-fields.   Field  names  are  one
              character each.  If this option is not present, indxbib excludes fields X, Y, and Z.

       -k max-keys-per-record
              Use  no more keys per input record than specified in the argument.  If this option is not present,
              the maximum is 100.

       -l min-key-length
              Discard any key whose length in characters is shorter than the value of  the  argument.   If  this
              option is not present, the minimum key length is 3.

       -n threshold
              Discard  the  threshold  most  common  words  from  the  common words file.  If this option is not
              present, the 100 most common words are discarded.

       -o basename
              Name the index basename.i.

       -t max-key-length
              Truncate keys to max-key-length in characters.  If this option is not present, keys are  truncated
              to 6 characters.

       -w     Index whole files.  Each file is a separate record.

Files

       file.i index for file

       Ind.i  default index name

       /usr/share/groff/1.23.0/eign
              contains  the  list of common words.  The traditional name, “eign”, is an abbreviation of “English
              ignored [word list]”.

       indxbibXXXXXX
              temporary file

See also

       “Some Applications of Inverted Indexes on the Unix System”, by M. E. Lesk, 1978, AT&T  Bell  Laboratories
       Computing Science Technical Report No. 69.

       refer(1), lkbib(1), lookbib(1)

groff 1.23.0                                      31 March 2024                                       indxbib(1)