1 /* Value distribution of plural form expressions. 2 Copyright (C) 2001-2008 Free Software Foundation, Inc. 3 Written by Bruno Haible <bruno@clisp.org>, 2001-2005. 4 5 This program is free software: you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 17 18 #ifndef _PLURAL_DISTRIB_H 19 #define _PLURAL_DISTRIB_H 20 21 22 /* Definition of 'struct expression'. */ 23 #include "plural-exp.h" 24 25 26 #ifdef __cplusplus 27 extern "C" { 28 #endif 29 30 31 /* The value distribution of a plural formula. */ 32 struct plural_distribution 33 { 34 /* The plural formula as a parsed expression. */ 35 const struct expression *expr; 36 37 /* OFTEN is either NULL or an array of nplurals elements, 38 OFTEN[j] being true if the value j appears to be assumed infinitely often 39 by the plural formula. */ 40 const unsigned char *often; 41 42 /* The length of the OFTEN array. */ 43 unsigned long often_length; 44 45 /* A function which evaluates the plural formula for min <= n <= max 46 and returns the estimated number of times the value j was assumed. */ 47 unsigned int (*histogram) (const struct plural_distribution *self, 48 int min, int max, unsigned long j); 49 }; 50 51 52 #ifdef __cplusplus 53 } 54 #endif 55 56 57 #endif /* _PLURAL_DISTRIB_H */ 58