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             : 
      25             : #include "lib.h"
      26             : 
      27             : #include "cset.h"
      28             : 
      29             : cset csalpha(CSET_BUILTIN);
      30             : cset csupper(CSET_BUILTIN);
      31             : cset cslower(CSET_BUILTIN);
      32             : cset csdigit(CSET_BUILTIN);
      33             : cset csxdigit(CSET_BUILTIN);
      34             : cset csspace(CSET_BUILTIN);
      35             : cset cspunct(CSET_BUILTIN);
      36             : cset csalnum(CSET_BUILTIN);
      37             : cset csprint(CSET_BUILTIN);
      38             : cset csgraph(CSET_BUILTIN);
      39             : cset cscntrl(CSET_BUILTIN);
      40             : 
      41             : #ifdef isascii
      42             : #define ISASCII(c) isascii(c)
      43             : #else
      44             : #define ISASCII(c) (1)
      45             : #endif
      46             : 
      47        1480 : void cset::clear()
      48             : {
      49        1480 :   char *p = v;
      50      380360 :   for (int i = 0; i <= UCHAR_MAX; i++)
      51      378880 :     p[i] = 0;
      52        1480 : }
      53             : 
      54           0 : cset::cset()
      55             : {
      56           0 :   clear();
      57           0 : }
      58             : 
      59        1480 : cset::cset(const char *s)
      60             : {
      61        1480 :   clear();
      62        7460 :   while (*s)
      63        5980 :     v[(unsigned char)*s++] = 1;
      64        1480 : }
      65             : 
      66           0 : cset::cset(const unsigned char *s)
      67             : {
      68           0 :   clear();
      69           0 :   while (*s)
      70           0 :     v[*s++] = 1;
      71           0 : }
      72             : 
      73       47674 : cset::cset(cset_builtin)
      74             : {
      75             :   // these are initialised by cset_init::cset_init()
      76       47674 : }
      77             : 
      78           0 : cset &cset::operator|=(const cset &cs)
      79             : {
      80           0 :   for (int i = 0; i <= UCHAR_MAX; i++)
      81           0 :     if (cs.v[i])
      82           0 :       v[i] = 1;
      83           0 :   return *this;
      84             : }
      85             : 
      86             : 
      87             : int cset_init::initialised = 0;
      88             : 
      89       39679 : cset_init::cset_init()
      90             : {
      91       39679 :   if (initialised)
      92       35345 :     return;
      93        4334 :   initialised = 1;
      94     1113838 :   for (int i = 0; i <= UCHAR_MAX; i++) {
      95     1109504 :     csalpha.v[i] = ISASCII(i) && isalpha(i);
      96     1109504 :     csupper.v[i] = ISASCII(i) && isupper(i);
      97     1109504 :     cslower.v[i] = ISASCII(i) && islower(i);
      98     1109504 :     csdigit.v[i] = ISASCII(i) && isdigit(i);
      99     1109504 :     csxdigit.v[i] = ISASCII(i) && isxdigit(i);
     100     1109504 :     csspace.v[i] = ISASCII(i) && isspace(i);
     101     1109504 :     cspunct.v[i] = ISASCII(i) && ispunct(i);
     102     1109504 :     csalnum.v[i] = ISASCII(i) && isalnum(i);
     103     1109504 :     csprint.v[i] = ISASCII(i) && isprint(i);
     104     1109504 :     csgraph.v[i] = ISASCII(i) && isgraph(i);
     105     1109504 :     cscntrl.v[i] = ISASCII(i) && iscntrl(i);
     106             :   }
     107             : }
     108             : 
     109             : // Local Variables:
     110             : // fill-column: 72
     111             : // mode: C++
     112             : // End:
     113             : // vim: set cindent noexpandtab shiftwidth=2 textwidth=72: