aboutsummaryrefslogtreecommitdiff
path: root/libX11/src/xlibi18n/lcPrTxt.c
blob: 1b7627cf8f99606fff706da1a46b340cf33163d5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
/*
 * Copyright 1992, 1993 by TOSHIBA Corp.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of TOSHIBA not be used in advertising
 * or publicity pertaining to distribution of the software without specific,
 * written prior permission. TOSHIBA make no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * TOSHIBA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
 * TOSHIBA BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 *
 * Author: Katsuhisa Yano	TOSHIBA Corp.
 *			   	mopi@osa.ilab.toshiba.co.jp
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "Xlibint.h"
#include "XlcPubI.h"
#include <X11/Xutil.h>
#include <X11/Xatom.h>

static XPointer *
alloc_list(
    Bool is_wide_char,
    int count,
    int nitems)
{
    if (is_wide_char) {
	wchar_t **wstr_list;

	wstr_list = (wchar_t **) Xmalloc(count * sizeof(wchar_t *));
	if (wstr_list == NULL)
	    return (XPointer *) NULL;

	*wstr_list = (wchar_t *) Xmalloc(nitems * sizeof(wchar_t));
	if (*wstr_list == NULL) {
	    Xfree(wstr_list);
	    return (XPointer *) NULL;
	}

	return (XPointer *) wstr_list;
    } else {
	char **str_list;

	str_list = (char **) Xmalloc(count * sizeof(char *));
	if (str_list == NULL)
	    return (XPointer *) NULL;

	*str_list = (char *) Xmalloc(nitems);
	if (*str_list == NULL) {
	    Xfree(str_list);
	    return (XPointer *) NULL;
	}

	return (XPointer *) str_list;
    }
}

static void
copy_list(
    Bool is_wide_char,
    XPointer text,
    XPointer *list,
    int count)
{
    int length;

    if (is_wide_char) {
	wchar_t *wc_text, *wstr, **wstr_list;

	wc_text = (wchar_t *) text;
	wstr_list = (wchar_t **) list;

	for (wstr = *wstr_list; count > 0; count--, wstr_list++) {
	    _Xwcscpy(wstr, wc_text);
	    *wstr_list = wstr;
	    length = _Xwcslen(wstr) + 1;
	    wstr += length;
	    wc_text += length;
	}
    } else {
	char *mb_text, *str, **str_list;

	mb_text = (char *) text;
	str_list = (char **) list;

	for (str = *str_list; count > 0; count--, str_list++) {
	    strcpy(str, mb_text);
	    *str_list = str;
	    length = strlen(str) + 1;
	    str += length;
	    mb_text += length;
	}
    }
}

static int
_XTextPropertyToTextList(
    XLCd lcd,
    Display *dpy,
    const XTextProperty *text_prop,
    const char *to_type,
    XPointer **list_ret,
    int *count_ret)
{
    XlcConv conv = NULL;
    const char *from_type;
    XPointer from, to, buf;
    char *str_ptr, *last_ptr;
    Atom encoding;
    int from_left, to_left, buf_len, ret, len;
    int unconv_num, nitems = text_prop->nitems;
    Bool is_wide_char = False, do_strcpy = False;

    if (strcmp(XlcNWideChar, to_type) == 0)
	is_wide_char = True;

    if (nitems <= 0) {
	*list_ret = NULL;
	*count_ret = 0;
	return Success;
    }

    if (text_prop->format != 8)
	return XConverterNotFound;

    encoding = text_prop->encoding;
    if (encoding == XA_STRING)
	from_type = XlcNString;
    else if (encoding == XInternAtom(dpy, "UTF8_STRING", False))
	from_type = XlcNUtf8String;
    else if (encoding == XInternAtom(dpy, "COMPOUND_TEXT", False))
	from_type = XlcNCompoundText;
    else if (encoding == XInternAtom(dpy, XLC_PUBLIC(lcd, encoding_name), False))
	from_type = XlcNMultiByte;
    else
	return XConverterNotFound;

    if (is_wide_char) {
	buf_len = (text_prop->nitems + 1) * sizeof(wchar_t);;
    } else {
	if (strcmp(to_type, XlcNUtf8String) == 0)
	    buf_len = text_prop->nitems * 6 + 1;
	else
	    buf_len = text_prop->nitems * XLC_PUBLIC(lcd, mb_cur_max) + 1;
    }
    buf = (XPointer) Xmalloc(buf_len);
    if (buf == NULL)
	return XNoMemory;
    to = buf;
    to_left = buf_len;

    /* can be XlcNMultiByte to XlcNMultiByte,
       or XlcNUtf8String to XlcNUtf8String */
    if (!strcmp(from_type, to_type)) {
        do_strcpy = True;
    } else {
        conv = _XlcOpenConverter(lcd, from_type, lcd, to_type);
        if (conv == NULL) {
	    Xfree(buf);
	    return XConverterNotFound;
        }
    }

    last_ptr = str_ptr = (char *) text_prop->value;
    unconv_num = *count_ret = 0;

    while (1) {
	if (nitems == 0 || *str_ptr == 0) {
	    from = (XPointer) last_ptr;
	    from_left = str_ptr - last_ptr;
	    last_ptr = str_ptr;

            if (do_strcpy) {
            	len = min(from_left, to_left);
                strncpy(to, from, len);
                from += len;
                to += len;
                from_left -= len;
                to_left -= len;
                ret = 0;
            } else {
	        ret = _XlcConvert(conv, &from, &from_left, &to, &to_left, NULL, 0);
            }

	    if (ret < 0)
		continue;

	    unconv_num += ret;
	    (*count_ret)++;

	    if (nitems == 0)
		break;
 	    last_ptr = ++str_ptr;
	    if (is_wide_char) {
		*((wchar_t *)to) = (wchar_t) 0;
		to += sizeof(wchar_t);
		to_left -= sizeof(wchar_t);
	    } else {
		*((char *)to) = '\0';
		to++;
		to_left--;
	    }
	    if (! do_strcpy)
	        _XlcResetConverter(conv);
	} else
	    str_ptr++;

	nitems--;
    }

    if (! do_strcpy)
        _XlcCloseConverter(conv);

    if (is_wide_char) {
	*((wchar_t *) to) = (wchar_t) 0;
	to_left -= sizeof(wchar_t);
    } else {
	*((char *) to) = '\0';
	to_left--;
    }

    *list_ret = alloc_list(is_wide_char, *count_ret, buf_len - to_left);
    if (*list_ret)
	copy_list(is_wide_char, buf, *list_ret, *count_ret);

    Xfree(buf);

    return unconv_num;
}

int
_XmbTextPropertyToTextList(
    XLCd lcd,
    Display *dpy,
    const XTextProperty *text_prop,
    char ***list_ret,
    int *count_ret)
{
    return _XTextPropertyToTextList(lcd, dpy, text_prop, XlcNMultiByte,
				    (XPointer **) list_ret, count_ret);
}

int
_XwcTextPropertyToTextList(
    XLCd lcd,
    Display *dpy,
    const XTextProperty *text_prop,
    wchar_t ***list_ret,
    int *count_ret)
{
    return _XTextPropertyToTextList(lcd, dpy, text_prop, XlcNWideChar,
				    (XPointer **) list_ret, count_ret);
}

int
_Xutf8TextPropertyToTextList(
    XLCd lcd,
    Display *dpy,
    const XTextProperty *text_prop,
    char ***list_ret,
    int *count_ret)
{
    return _XTextPropertyToTextList(lcd, dpy, text_prop, XlcNUtf8String,
				    (XPointer **) list_ret, count_ret);
}

void
_XwcFreeStringList(
    XLCd lcd,
    wchar_t **list)
{
    if (list) {
        if (*list)
	     Xfree(*list);
        Xfree(list);
    }
}