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
|
#include <u.h>
#include <libc.h>
#include <bio.h>
#include "../common/common.h"
#include "tr2post.h"
int hpos = 0, vpos = 0;
int fontsize, fontpos;
#define MAXSTR 128
int trindex; /* index into trofftab of current troff font */
static int expecthmot = 0;
void
initialize(void) {
}
void
hgoto(int x) {
hpos = x;
if (pageon()) {
endstring();
/* Bprint(Bstdout, "%d %d m\n", hpos, vpos); */
}
}
void
vgoto(int y) {
vpos = y;
if (pageon()) {
endstring();
/* Bprint(Bstdout, "%d %d m\n", hpos, vpos); */
}
}
void
hmot(int x) {
int delta;
if ((x<expecthmot-1) || (x>expecthmot+1)) {
delta = x - expecthmot;
if (curtrofffontid <0 || curtrofffontid >= troffontcnt) {
Bprint(Bstderr, "troffontcnt=%d curtrofffontid=%d\n", troffontcnt, curtrofffontid);
Bflush(Bstderr);
exits("");
}
if (delta == troffontab[curtrofffontid].spacewidth*fontsize/10 && isinstring()) {
if (pageon()) runeout(' ');
} else {
if (pageon()) {
endstring();
/* Bprint(Bstdout, " %d 0 rmoveto ", delta); */
/* Bprint(Bstdout, " %d %d m ", hpos+x, vpos); */
if (debug) Bprint(Bstderr, "x=%d expecthmot=%d\n", x, expecthmot);
}
}
}
hpos += x;
expecthmot = 0;
}
void
vmot(int y) {
endstring();
/* Bprint(Bstdout, " 0 %d rmoveto ", -y); */
vpos += y;
}
struct charent **
findglyph(int trfid, Rune rune, char *stoken) {
struct charent **cp;
for (cp = &(troffontab[trfid].charent[RUNEGETGROUP(rune)][RUNEGETCHAR(rune)]); *cp != 0; cp = &((*cp)->next)) {
if ((*cp)->name) {
if (debug) Bprint(Bstderr, "looking for <%s>, have <%s> in font %s\n", stoken, (*cp)->name, troffontab[trfid].trfontid);
if (strcmp((*cp)->name, stoken) == 0)
break;
}
}
return(cp);
}
/* output glyph. Use first rune to look up character (hash)
* then use stoken UTF string to find correct glyph in linked
* list of glyphs in bucket.
*/
void
glyphout(Rune rune, char *stoken, BOOLEAN specialflag) {
struct charent **cp;
struct troffont *tfp;
struct psfent *psfp = (struct psfent*)0;
int i, t;
int fontid; /* this is the troff font table index, not the mounted font table index */
int mi, wid;
Rune r;
mi = 0;
settrfont();
/* check current font for the character, special or not */
fontid = curtrofffontid;
if (debug) fprint(2, " looking through current font: trying %s\n", troffontab[fontid].trfontid);
cp = findglyph(fontid, rune, stoken);
if (*cp != 0) goto foundit;
if (specialflag) {
if (expecthmot) hmot(0);
/* check special fonts for the special character */
/* cycle through the (troff) mounted fonts starting at the next font */
for (mi=0; mi<fontmnt; mi++) {
if (troffontab[fontid].trfontid==0) error(WARNING, "glyphout:troffontab[%d].trfontid=0x%x, botch!\n",
fontid, troffontab[fontid].trfontid);
if (fontmtab[mi]==0) {
if (debug) fprint(2, "fontmtab[%d]=0x%x, fontmnt=%d\n", mi, fontmtab[mi], fontmnt);
continue;
}
if (strcmp(troffontab[fontid].trfontid, fontmtab[mi])==0) break;
}
if (mi==fontmnt) error(FATAL, "current troff font is not mounted, botch!\n");
for (i=(mi+1)%fontmnt; i!=mi; i=(i+1)%fontmnt) {
if (fontmtab[i]==0) {
if (debug) fprint(2, "fontmtab[%d]=0x%x, fontmnt=%d\n", i, fontmtab[i], fontmnt);
continue;
}
fontid = findtfn(fontmtab[i], TRUE);
if (debug) fprint(2, " looking through special fonts: trying %s\n", troffontab[fontid].trfontid);
if (troffontab[fontid].special) {
cp = findglyph(fontid, rune, stoken);
if (*cp != 0) goto foundit;
}
}
/* check font 1 (if current font is not font 1) for the special character */
if (mi != 1) {
fontid = findtfn(fontmtab[1], TRUE);;
if (debug) fprint(2, " looking through font at position 1: trying %s\n", troffontab[fontid].trfontid);
cp = findglyph(fontid, rune, stoken);
if (*cp != 0) goto foundit;
}
}
if (*cp == 0) {
error(WARNING, "cannot find glyph, rune=0x%x stoken=<%s> troff font %s\n", rune, stoken,
troffontab[curtrofffontid].trfontid);
expecthmot = 0;
}
/* use the peter face in lieu of the character that we couldn't find */
rune = 'p'; stoken = "pw";
for (i=(mi+1)%fontmnt; i!=mi; i=(i+1)%fontmnt) {
if (fontmtab[i]==0) {
if (debug) fprint(2, "fontmtab[%d]=0x%x\n", i, fontmtab[i]);
continue;
}
fontid = findtfn(fontmtab[i], TRUE);
if (debug) fprint(2, " looking through special fonts: trying %s\n", troffontab[fontid].trfontid);
if (troffontab[fontid].special) {
cp = findglyph(fontid, rune, stoken);
if (*cp != 0) goto foundit;
}
}
if (*cp == 0) {
error(WARNING, "cannot find glyph, rune=0x%x stoken=<%s> troff font %s\n", rune, stoken,
troffontab[curtrofffontid].trfontid);
expecthmot = 0;
return;
}
foundit:
t = (((*cp)->postfontid&0xff)<<8) | ((*cp)->postcharid&0xff);
if (debug) {
Bprint(Bstderr, "runeout(0x%x)<%C> postfontid=0x%x postcharid=0x%x troffcharwidth=%d\n",
rune, rune, (*cp)->postfontid, (*cp)->postcharid, (*cp)->troffcharwidth);
}
tfp = &(troffontab[fontid]);
for (i=0; i<tfp->psfmapsize; i++) {
psfp = &(tfp->psfmap[i]);
if(t>=psfp->start && t<=psfp->end) break;
}
if (i >= tfp->psfmapsize)
error(FATAL, "character <0x%x> does not have a Postscript font defined.\n", rune);
setpsfont(psfp->psftid, fontsize);
if (t == 0x0001) { /* character is in charlib */
endstring();
if (pageon()) {
Bprint(Bstdout, "%d %d m ", hpos, vpos);
/* if char is unicode character rather than name, clean up for postscript */
wid = chartorune(&r, (*cp)->name);
if(' '<r && r<0x7F)
Bprint(Bstdout, "%d build_%s\n", (*cp)->troffcharwidth, (*cp)->name);
else{
if((*cp)->name[wid] != 0)
error(FATAL, "character <%s> badly named\n", (*cp)->name);
Bprint(Bstdout, "%d build_X%.4x\n", (*cp)->troffcharwidth, r);
}
/* stash charent pointer in a list so that we can print these character definitions
* in the prologue.
*/
for (i=0; i<build_char_cnt; i++)
if (*cp == build_char_list[i]) break;
if (i == build_char_cnt) {
build_char_list = galloc(build_char_list, sizeof(struct charent *) * ++build_char_cnt,
"build_char_list");
build_char_list[build_char_cnt-1] = *cp;
}
}
expecthmot = (*cp)->troffcharwidth * fontsize / unitwidth;
} else if (isinstring() || rune != ' ') {
startstring();
if (pageon()) {
if (rune == ' ')
Bprint(Bstdout, " ");
else
Bprint(Bstdout, "%s", charcode[RUNEGETCHAR(t)].str);
}
expecthmot = (*cp)->troffcharwidth * fontsize / unitwidth;
}
}
/* runeout puts a symbol into a string (queue) to be output.
* It also has to keep track of the current and last symbol
* output to check that the spacing is correct by default
* or needs to be adjusted with a spacing operation.
*/
void
runeout(Rune rune) {
char stoken[UTFmax+1];
int i;
i = runetochar(stoken, &rune);
stoken[i] = '\0';
glyphout(rune, stoken, TRUE);
}
void
specialout(char *stoken) {
Rune rune;
chartorune(&rune, stoken);
glyphout(rune, stoken, TRUE);
}
void
graphfunc(Biobuf *bp) {
}
long
nametorune(char *name) {
return(0);
}
void
notavail(char *msg) {
Bprint(Bstderr, "%s is not available at this time.\n", msg);
}
|