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
|
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pango/pango-enum-types.h>
#include <pango/pango-script.h>
#include <pango/pango-types.h>
#include <pango/pango-utils.h>
PangoScript script_for_file (const char *base_dir,
const char *file_part);
const char *get_script_name (PangoScript script)
{
static GEnumClass *class = NULL;
if (!class)
class = g_type_class_ref (PANGO_TYPE_SCRIPT);
GEnumValue *value = g_enum_get_value (class, script);
g_assert (value);
return value->value_name;
}
int fail (char *format, ...)
{
va_list vap;
va_start (vap, format);
vfprintf (stderr, format, vap);
va_end (vap);
exit (1);
}
gboolean scan_hex (const char **str, gunichar *result)
{
const char *end;
*result = strtol (*str, (char **)&end, 16);
if (end == *str)
return FALSE;
*str = end;
return TRUE;
}
void warn_mismatch (const char *file_part,
PangoScript script1,
PangoScript script2)
{
g_printerr ("%s has characters for both %s and %s\n",
file_part, get_script_name (script1), get_script_name (script2));
}
PangoScript script_for_line (const char *base_dir,
const char *file_part,
const char *str)
{
gunichar start_char;
gunichar end_char;
gunichar ch;
PangoScript result = PANGO_SCRIPT_COMMON;
const char *p = str;
if (g_str_has_prefix (str, "include"))
{
GString *file_part = g_string_new (NULL);
str += strlen ("include");
if (!pango_skip_space (&str))
goto err;
if (!pango_scan_string (&str, file_part) ||
pango_skip_space (&str))
goto err;
result = script_for_file (base_dir, file_part->str);
g_string_free (file_part, TRUE);
return result;
}
/* Format is HEX_DIGITS or HEX_DIGITS-HEX_DIGITS */
if (!scan_hex (&p, &start_char))
goto err;
end_char = start_char;
pango_skip_space (&p);
if (*p == '-')
{
p++;
if (!scan_hex (&p, &end_char))
goto err;
pango_skip_space (&p);
}
if (*p != '\0')
goto err;
for (ch = start_char; ch <= end_char; ch++)
{
PangoScript script = pango_script_for_unichar (ch);
if (script != PANGO_SCRIPT_COMMON &&
script != PANGO_SCRIPT_INHERITED)
{
if (result != PANGO_SCRIPT_COMMON && script != result)
{
warn_mismatch (file_part, script, result);
return PANGO_SCRIPT_INVALID_CODE;
}
result = script;
}
}
return result;
err:
fail ("While processing '%s', cannot parse line: '%s'\n", file_part, str);
return PANGO_SCRIPT_INVALID_CODE; /* Not reached */
}
PangoScript script_for_file (const char *base_dir,
const char *file_part)
{
GError *error = NULL;
char *filename = g_build_filename (base_dir, file_part, NULL);
GIOChannel *channel = g_io_channel_new_file (filename, "r", &error);
GIOStatus status = G_IO_STATUS_NORMAL;
PangoScript result = PANGO_SCRIPT_COMMON;
if (!channel)
fail ("Error opening '%s': %s\n", filename, error);
/* The files have ISO-8859-1 copyright signs in them */
if (!g_io_channel_set_encoding (channel, "ISO-8859-1", &error))
fail ("Cannot set encoding when reading '%s': %s\n", filename, error);
while (status == G_IO_STATUS_NORMAL)
{
char *str;
size_t term;
char *comment;
status = g_io_channel_read_line (channel, &str, NULL, &term, &error);
switch (status)
{
case G_IO_STATUS_NORMAL:
str[term] = '\0';
comment = strchr (str, '#');
if (comment)
*comment = '\0';
g_strstrip (str);
if (str[0] != '\0') /* Empty */
{
PangoScript script = script_for_line (base_dir, file_part, str);
if (script != PANGO_SCRIPT_COMMON &&
script != PANGO_SCRIPT_INHERITED)
{
if (result != PANGO_SCRIPT_COMMON && script != result)
{
warn_mismatch (file_part, script, result);
result = PANGO_SCRIPT_INVALID_CODE;
status = G_IO_STATUS_EOF;
}
else
result = script;
}
}
g_free (str);
break;
case G_IO_STATUS_EOF:
break;
case G_IO_STATUS_ERROR:
fail ("Error reading '%s': %s\n", filename, error->message);
break;
case G_IO_STATUS_AGAIN:
g_assert_not_reached ();
break;
}
}
if (!g_io_channel_shutdown (channel, FALSE, &error))
fail ("Error closing '%s': %s\n", channel, error);
g_free (filename);
return result;
}
int main (int argc, char **argv)
{
GDir *dir;
GError *error = NULL;
g_type_init ();
if (argc != 2)
fail ("Usage: gen-script-for-lang DIR > script-for-lang.h\n");
dir = g_dir_open (argv[1], 0, &error);
if (!dir)
fail ("%s\n", error->message);
while (TRUE)
{
const char *name = g_dir_read_name (dir);
if (!name)
break;
if (g_str_has_suffix (name, ".orth"))
{
char *langpart = g_strndup (name,
strlen (name) - strlen (".orth"));
PangoLanguage *lang = pango_language_from_string (langpart);
PangoScript script;
script = script_for_file (argv[1], name);
g_print ("%s - %s\n",
pango_language_to_string (lang),
get_script_name (script));
g_free (langpart);
}
}
g_dir_close (dir);
return 0;
}
|
