git.distorted.org.uk Git - u/mdw/putty/blob - mac/macucs.c

   1 /* $Id: macucs.c,v 1.1 2002/11/19 02:13:46 ben Exp $ */
   2
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <ctype.h>
   6
   7 #include <time.h>
   8 #include "putty.h"
   9 #include "terminal.h"
  10 #include "misc.h"
  11
  12 /*
  13  * Mac Unicode-handling routines.
  14  *
  15  * FIXME: currently trivial stub versions assuming all codepages
  16  * are ISO8859-1.
  17  *
  18  * What we _should_ do is to use the Text Encoding Conversion Manager
  19  * when it's available, and have our own routines for converting to
  20  * standard Mac OS scripts when it's not.  Support for ATSUI might be
  21  * nice, too.
  22  */
  23
  24 int is_dbcs_leadbyte(int codepage, char byte)
  25 {
  26     return 0;                          /* we don't do DBCS */
  27 }
  28
  29 int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
  30              wchar_t *wcstr, int wclen)
  31 {
  32     int ret = 0;
  33     while (mblen > 0 && wclen > 0) {
  34         *wcstr++ = (unsigned char) *mbstr++;
  35         mblen--, wclen--, ret++;
  36     }
  37     return ret;                        /* FIXME: check error codes! */
  38 }
  39
  40 int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen,
  41              char *mbstr, int mblen, char *defchr, int *defused)
  42 {
  43     int ret = 0;
  44     if (defused)
  45         *defused = 0;
  46     while (mblen > 0 && wclen > 0) {
  47         if (*wcstr >= 0x100) {
  48             if (defchr)
  49                 *mbstr++ = *defchr;
  50             else
  51                 *mbstr++ = '.';
  52             if (defused)
  53                 *defused = 1;
  54         } else
  55             *mbstr++ = (unsigned char) *wcstr;
  56         wcstr++;
  57         mblen--, wclen--, ret++;
  58     }
  59     return ret;                        /* FIXME: check error codes! */
  60 }
  61
  62 void init_ucs(void)
  63 {
  64     int i;
  65     /* Find the line control characters. FIXME: this is not right. */
  66     for (i = 0; i < 256; i++)
  67         if (i < ' ' || (i >= 0x7F && i < 0xA0))
  68             unitab_ctrl[i] = i;
  69         else
  70             unitab_ctrl[i] = 0xFF;
  71
  72     for (i = 0; i < 256; i++) {
  73         unitab_line[i] = unitab_scoacs[i] = i;
  74         unitab_xterm[i] = (i >= 0x5F && i < 0x7F) ? ((i+1) & 0x1F) : i;
  75     }
  76 }