libkcc/check.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5
   6 #include "kcc.h"
   7 #include "libkcc.h"
   8
   9 unsigned KCC_check(s, extend)
  10     char *s;
  11     int extend;
  12 {
  13     register unsigned code, c;
  14     register int len;
  15     char str[LENLINE], *dummy;
  16     unsigned KCC_guess();
  17 enum mode gsmode;               /* guess:  M_ASCII M_KANJI M_SO */
  18 unsigned long insi;             /* JIS shift-in sequence flag */
  19 unsigned long inso;             /* JIS shift-out sequence flag
  20                                  * including "ESC(I" */
  21 unsigned long innj;             /* JIS 1990 sequence flag */
  22 unsigned long ingj;             /* JIS 1990 aux flag */
  23
  24     dummy = s;
  25     code = extend ? BIT8 : BIT8 & ~DEC;
  26     gsmode = M_ASCII;
  27     insi = inso = innj = ingj = 0;
  28     while ((len = Kcc_getstr(str, sizeof str, &dummy)) != 0) {
  29         c = Kcc_guess(str, len, extend, 0, &gsmode, &insi, &inso, &innj, &ingj);
  30         code |= c & (JIS | NONASCII), code &= c | ~BIT8;
  31         if (code & NONASCII && !(code & BIT8))
  32             break;
  33     }
  34
  35     return Kcc_showcode(code);
  36 }