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
|
/* Pango
* break.c:
*
* Copyright (C) 1999 Red Hat Software
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "pango.h"
#include <unicode.h>
#include "utils.h"
/**
* pango_break:
* @text: the text to process
* @length: the length (in bytes) of @text
* @analysis: #PangoAnalysis structure from PangoItemize
* @attrs: an array to store character information in
*
* Determines possible line, word, and character breaks
* for a string of Unicode text.
*/
void pango_break (const gchar *text,
gint length,
PangoAnalysis *analysis,
PangoLogAttr *attrs)
{
/* Pseudo-implementation */
const gchar *cur = text;
const gchar *next;
gint i = 0;
GUChar4 wc;
while (*cur)
{
next = unicode_get_utf8 (cur, &wc);
if (!next)
break; /* FIXME: ERROR */
if (cur == next)
break;
if ((next - text) > length)
break;
cur = next;
attrs[i].is_white = (wc == ' ' || wc == '\t' || wc == '\n' || wc == 0x200b) ? 1 : 0;
attrs[i].is_break = i == 0 || attrs[i-1].is_white || attrs[i].is_white;
attrs[i].is_char_stop = 1;
attrs[i].is_word_stop = (i == 0) || attrs[i-1].is_white;
i++;
}
}
|
