Line data    Source code

       1             : /* Copyright 1989-2020 Free Software Foundation, Inc.
       2             :      Written by James Clark (jjc@jclark.com)
       3             : 
       4             : This file is part of groff, the GNU roff typesetting system.
       5             : 
       6             : groff is free software; you can redistribute it and/or modify it under
       7             : the terms of the GNU General Public License as published by the Free
       8             : Software Foundation, either version 3 of the License, or
       9             : (at your option) any later version.
      10             : 
      11             : groff is distributed in the hope that it will be useful, but WITHOUT ANY
      12             : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13             : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14             : for more details.
      15             : 
      16             : You should have received a copy of the GNU General Public License
      17             : along with this program.  If not, see <http://www.gnu.org/licenses/>. */
      18             : 
      19             : #ifdef HAVE_CONFIG_H
      20             : #include <config.h>
      21             : #endif
      22             : 
      23             : #include <ctype.h>
      24             : #include "cmap.h"
      25             : 
      26             : cmap cmlower(CMAP_BUILTIN);
      27             : cmap cmupper(CMAP_BUILTIN);
      28             : 
      29             : #ifdef isascii
      30             : #define ISASCII(c) isascii(c)
      31             : #else
      32             : #define ISASCII(c) (1)
      33             : #endif
      34             : 
      35           0 : cmap::cmap()
      36             : {
      37           0 :   unsigned char *p = v;
      38           0 :   for (int i = 0; i <= UCHAR_MAX; i++)
      39           0 :     p[i] = i;
      40           0 : }
      41             : 
      42        3120 : cmap::cmap(cmap_builtin)
      43             : {
      44             :   // these are initialised by cmap_init::cmap_init()
      45        3120 : }
      46             : 
      47             : int cmap_init::initialised = 0;
      48             : 
      49       13230 : cmap_init::cmap_init()
      50             : {
      51       13230 :   if (initialised)
      52       11670 :     return;
      53        1560 :   initialised = 1;
      54      400920 :   for (int i = 0; i <= UCHAR_MAX; i++) {
      55      399360 :     cmupper.v[i] = ISASCII(i) && islower(i) ? toupper(i) : i;
      56      399360 :     cmlower.v[i] = ISASCII(i) && isupper(i) ? tolower(i) : i;
      57             :   }
      58             : }
      59             : 
      60             : // Local Variables:
      61             : // fill-column: 72
      62             : // mode: C++
      63             : // End:
      64             : // vim: set cindent noexpandtab shiftwidth=2 textwidth=72: