program/psiconv/general.c

/*
    general.c - Part of psiconv, a PSION 5 file formats converter
    Copyright (c) 2003  Frodo Looijaard <frodol@dds.nl>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "config.h"
#include "compat.h"

#include "psiconv.h"
#include "general.h"
#include <psiconv/list.h>
#include <psiconv/unicode.h>

/* Output a UCS2 character in one of the supported encodings. */
int output_char(psiconv_config config, psiconv_list list, 
                psiconv_ucs2 character, encoding enc)
{
  psiconv_u8 temp;
  int res;

  if (enc == ENCODING_UCS2) {
    temp = character >> 8;
    if ((res = psiconv_list_add(list,&temp)))
      return res;
    temp = character & 0xff;
    if ((res = psiconv_list_add(list,&temp)))
      return res;
  } else if (enc == ENCODING_UTF8) {
    if (character < 0x80) {
      temp = character;
      if ((res = psiconv_list_add(list,&temp)))
        return res;
    } else if (character < 0x800) {
      temp = 0xc0 + (character >> 6);
      if ((res = psiconv_list_add(list,&temp)))
        return res;
      temp = 0x80 + (character & 0x3f);
      if ((res = psiconv_list_add(list,&temp)))
        return res;
    } else {
      temp = 0xe0 + (character >> 12);
      if ((res = psiconv_list_add(list,&temp)))
        return res;
      temp = 0x80 + ((character >> 6) & 0x3f);
      if ((res = psiconv_list_add(list,&temp)))
        return res;
      temp = 0x80 + (character  & 0x3f);
      if ((res = psiconv_list_add(list,&temp)))
        return res;
    }
  } else if (enc == ENCODING_ASCII) {
    if (character == 0xa0)
      temp = ' ';
    else if (character >= 0x80)
      temp = '?';
    else
      temp = character;
    if ((res = psiconv_list_add(list,&temp)))
      return res;
  } else if (enc == ENCODING_PSION) {
    temp = psiconv_unicode_to_char(config,character);
    if ((res = psiconv_list_add(list,&temp)))
      return res;
  }
  return 0;
}

int output_string(psiconv_config config, psiconv_list list, 
                          psiconv_ucs2 *string, encoding enc)
{
  int i = 0;
  int res;

  while (string[i]) {
    if ((res = output_char(config,list,string[i],enc)))
      return res;
    i++;
  }
  return 0; 
}
1	/*
2	general.c - Part of psiconv, a PSION 5 file formats converter
3	Copyright (c) 2003 Frodo Looijaard <frodol@dds.nl>
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 2 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, write to the Free Software
17	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18	*/
19
20	#include "config.h"
21	#include "compat.h"
22
23	#include "psiconv.h"
24	#include "general.h"
25	#include <psiconv/list.h>
26	#include <psiconv/unicode.h>
27
28	/* Output a UCS2 character in one of the supported encodings. */
29	int output_char(psiconv_config config, psiconv_list list,
30	psiconv_ucs2 character, encoding enc)
31	{
32	psiconv_u8 temp;
33	int res;
34
35	if (enc == ENCODING_UCS2) {
36	temp = character >> 8;
37	if ((res = psiconv_list_add(list,&temp)))
38	return res;
39	temp = character & 0xff;
40	if ((res = psiconv_list_add(list,&temp)))
41	return res;
42	} else if (enc == ENCODING_UTF8) {
43	if (character < 0x80) {
44	temp = character;
45	if ((res = psiconv_list_add(list,&temp)))
46	return res;
47	} else if (character < 0x800) {
48	temp = 0xc0 + (character >> 6);
49	if ((res = psiconv_list_add(list,&temp)))
50	return res;
51	temp = 0x80 + (character & 0x3f);
52	if ((res = psiconv_list_add(list,&temp)))
53	return res;
54	} else {
55	temp = 0xe0 + (character >> 12);
56	if ((res = psiconv_list_add(list,&temp)))
57	return res;
58	temp = 0x80 + ((character >> 6) & 0x3f);
59	if ((res = psiconv_list_add(list,&temp)))
60	return res;
61	temp = 0x80 + (character & 0x3f);
62	if ((res = psiconv_list_add(list,&temp)))
63	return res;
64	}
65	} else if (enc == ENCODING_ASCII) {
66	if (character == 0xa0)
67	temp = ' ';
68	else if (character >= 0x80)
69	temp = '?';
70	else
71	temp = character;
72	if ((res = psiconv_list_add(list,&temp)))
73	return res;
74	} else if (enc == ENCODING_PSION) {
75	temp = psiconv_unicode_to_char(config,character);
76	if ((res = psiconv_list_add(list,&temp)))
77	return res;
78	}
79	return 0;
80	}
81
82	int output_string(psiconv_config config, psiconv_list list,
83	psiconv_ucs2 *string, encoding enc)
84	{
85	int i = 0;
86	int res;
87
88	while (string[i]) {
89	if ((res = output_char(config,list,string[i],enc)))
90	return res;
91	i++;
92	}
93	return 0;
94	}
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