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
|
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
struct gmap
{
struct gmap *next, *prev;
int glyph;
int width;
unsigned char rules[4*8];
int len;
int offset;
};
static struct gmap *ctab[0x30000];
#define GMAP_WIDTH 1
#define GMAP_FINAL1 0
#define GMAP_FINAL2 1
#define GMAP_GLYPH1 2
#define GMAP_GLYPH2 3
#define RULE_RANGE 4
#define RULE_ATTACHED_TO 5
#define RULE_WITH_ATTACHED 6
#define RULE_FOLLOWS 7
#define RULE_PRECEDES 8
#define CTAB_MASK 0x3fffffff
#define CTAB_INDIRECT 0x80000000
#define CTAB_WIDTH 30
static void put_u32(int n)
{
putchar(n>>24);
putchar(n>>16);
putchar(n>>8);
putchar(n);
}
int main()
{
char buf[256], *s;
int i;
int ch;
struct gmap *gm;
int type, begin, len;
int w=8, h=16;
unsigned char gbuf[32];
char tmp[3];
int width;
int nglyphs = 0;
unsigned char *glyphs = 0;
struct { unsigned begin, len, rel; } *ranges = 0;
int nranges = 0;
int ctab_len = 0;
int gmap_len = 0;
while ((s=fgets(buf, sizeof buf, stdin))) {
if (*s++ != ':') continue;
for (tmp[2]=i=0; i<sizeof gbuf && isxdigit(tmp[0]=*s++) && isxdigit(tmp[1]=*s++); i++)
gbuf[i] = strtol(tmp, NULL, 16);
if (i == 32) {
unsigned char gbuf_tmp[32];
width = 2;
for (i=0; i<16; i++) gbuf_tmp[i] = gbuf[2*i];
for (i=0; i<16; i++) gbuf_tmp[16+i] = gbuf[2*i+1];
memcpy(gbuf, gbuf_tmp, 32);
} else if (i == 16) { width = 1;
} else exit(1);
glyphs = realloc(glyphs, 16*(width+nglyphs));
memcpy(glyphs + 16*nglyphs, gbuf, 16*width);
nglyphs += width;
for (;;) {
for (; isspace(*s); s++);
if (!*s) break;
ch = strtol(s, &s, 16);
gm = calloc(1, sizeof(struct gmap));
gm->glyph = nglyphs-width;
gm->width = width;
gm->next = 0;
gm->prev = ctab[ch];
if (ctab[ch]) ctab[ch]->next = gm;
ctab[ch] = gm;
i=0;
while(i<sizeof(gm->rules)-12 && *s && !isspace(*s)) {
switch (*s++) {
case '+': type = RULE_WITH_ATTACHED; break;
case '-': type = RULE_ATTACHED_TO; break;
case '<': type = RULE_PRECEDES; break;
case '>': type = RULE_FOLLOWS; break;
default: exit(1);
}
if (*s == '[') {
begin = strtol(++s, &s, 16);
if (*s++ != '-') exit(1);
len = strtol(s, &s, 16) - begin + 1;
if (*s++ != ']') exit(1);
gm->rules[i++] = type;
gm->rules[i++] = begin>>16;
gm->rules[i++] = begin>>8;
gm->rules[i++] = begin;
gm->rules[i++] = RULE_RANGE;
gm->rules[i++] = len>>16;
gm->rules[i++] = len>>8;
gm->rules[i++] = len;
} else if (isxdigit(*s)) {
begin = strtol(s, &s, 16);
gm->rules[i++] = type;
gm->rules[i++] = begin>>16;
gm->rules[i++] = begin>>8;
gm->rules[i++] = begin;
} else exit(1);
}
gm->rules[i++] = GMAP_GLYPH1 | (gm->width-1);
gm->rules[i++] = (gm->glyph)>>16;
gm->rules[i++] = (gm->glyph)>>8;
gm->rules[i++] = (gm->glyph);
gm->len = i;
}
}
/* Count total glyph mapping rules and figure the table offsets */
for (ch=0; ch < sizeof(ctab)/sizeof(ctab[0]); ch++) {
for (gm = ctab[ch]; gm && gm->prev; gm = gm->prev);
/* Exclude rules that can be replaced by a trivial mapping */
if (!gm || (!gm->next && gm->len == 4)) {
if (gm) gm->len = 0;
continue;
}
for (ctab[ch] = gm; gm; gm = gm->next) {
/* Terminate the rules list */
if (!gm->next) gm->rules[gm->len-4] &= GMAP_WIDTH;
gm->offset = gmap_len;
gmap_len += gm->len;
}
}
/* Compact empty intervals and intervals with trivial glyph mapping */
begin = 1;
for (ch=1; ch <= sizeof(ctab)/sizeof(ctab[0]); ch++) {
if (ch == sizeof(ctab)/sizeof(ctab[0])
|| (ctab[ch-1] != ctab[ch]
&&(!ctab[ch-1] || !ctab[ch]
|| ctab[ch-1]->prev || ctab[ch-1]->len > 4
|| ctab[ch]->prev || ctab[ch]->len > 4
|| ctab[ch]->glyph != ctab[ch-1]->glyph + ctab[ch-1]->width
|| ctab[ch]->width != ctab[ch-1]->width))) {
if (ch - begin >= 1024) {
ranges = realloc(ranges, sizeof(ranges[0])*(nranges+1));
ranges[nranges].begin = begin;
ranges[nranges++].len = ch-begin;
}
begin = ch+1;
}
}
ranges[nranges-1].len = 0x110000;
/* Count total size of the character table */
ranges[0].rel = ranges[0].begin;
ctab_len = 1 + nranges*2 + ranges[0].begin;
for (i=1; i<nranges; i++)
ctab_len += ranges[i].rel = ranges[i].begin - (ranges[i-1].begin+ranges[i-1].len);
ctab_len *= 4;
// offset 0: magic and version (0.1.0.0)
fwrite("ucf\300\000\001\000\000", 1, 8, stdout);
// offset 8
putchar(8);
putchar(16);
putchar(0);
putchar(0);
putchar(0);
putchar(0);
putchar(0);
putchar(0);
// offset 16
put_u32(0); // metadata offset
put_u32(32); // ctab offset
put_u32(32+ctab_len); // gmap offset
put_u32(32+ctab_len+gmap_len); // glyph bitmaps
// offset 32
put_u32(nranges);
for (i=0; i<nranges; i++) {
put_u32(ranges[i].rel);
put_u32(ranges[i].len);
}
for (i=ch=0; ch<sizeof(ctab)/sizeof(ctab[0]); ch++) {
if (ch == ranges[i].begin) {
ch += ranges[i++].len-1;
continue;
}
if (!ctab[ch])
put_u32(-1);
else if (ctab[ch]->len == 0)
put_u32(ctab[ch]->glyph | ctab[ch]->width-1<<30);
else
put_u32(ctab[ch]->offset | 0x80000000);
}
// offset 32 + ctab_len
for (ch=0; ch < sizeof(ctab)/sizeof(ctab[0]); ch++)
for (gm = ctab[ch]; gm; gm = gm->next)
fwrite(gm->rules, 1, gm->len, stdout);
// offset 30 + ctab_len + gmap_len
fwrite(glyphs, 16, nglyphs, stdout);
return 0;
}
|
