src/data/short-names.h

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 2007 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 /* Short names for variables.
  18
  19    PSPP allows variable names to be up to 64 bytes long, but the
  20    system and portable file formats require that each variable
  21    have a unique name no more than 8 bytes long, called its
  22    "short name".  Furthermore, each "very long" string variable
  23    that is more than 255 bytes long has to be divided into
  24    multiple long string variables within that limit, and each of
  25    these segments must also have its own unique short name.
  26
  27    The function in this module generates short names for
  28    variables with long names or that have very long string
  29    width. */
  30
  31 #ifndef DATA_SHORT_NAMES_H
  32 #define DATA_SHORT_NAMES_H 1
  33
  34 struct dictionary;
  35
  36 /* Maximum length of a short name, in bytes. */
  37 #define SHORT_NAME_LEN 8
  38
  39 void short_names_assign (struct dictionary *);
  40
  41 #endif /* data/short-names.h */