ni.c - 9base - revived minimalist port of Plan 9 userland to Unix
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ni.c (8480B)
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1 #include <stdio.h>
2 #include "tdef.h"
3 #include "fns.h"
4 #include "ext.h"
5
6 char termtab[NS]; /* term type added in ptinit() */
7 char fontdir[NS]; /* added in casefp; not used by nroff */
8 char devname[20]; /* default output device */
9
10 Numtab numtab[NN] = {
11 { PAIR('%', 0) },
12 { PAIR('n', 'l') },
13 { PAIR('y', 'r') },
14 { PAIR('h', 'p') },
15 { PAIR('c', 't') },
16 { PAIR('d', 'n') },
17 { PAIR('m', 'o') },
18 { PAIR('d', 'y') },
19 { PAIR('d', 'w') },
20 { PAIR('l', 'n') },
21 { PAIR('d', 'l') },
22 { PAIR('s', 't') },
23 { PAIR('s', 'b') },
24 { PAIR('c', '.') },
25 { PAIR('$', '$') }
26 };
27
28
29 int alphabet = 256; /* latin-1 */
30 int pto = 10000;
31 int pfrom = 1;
32 int print = 1;
33 char nextf[NS] = TMACDIR;
34 char mfiles[NMF][NS];
35 int nmfi = 0;
36 int oldbits = -1;
37 int init = 1;
38 int fc = IMP; /* field character */
39 int eschar = '\\';
40 int pl;
41 int po;
42 FILE *ptid;
43
44 int dfact = 1;
45 int dfactd = 1;
46 int res = 1;
47 int smnt = 0; /* beginning of special fonts */
48 int ascii = 0; /* ascii normally off for troff, on for nroff; -a turns on */
49 int lg;
50 int pnlist[NPN] = { -1 };
51
52
53 int *pnp = pnlist;
54 int npn = 1;
55 int npnflg = 1;
56 int dpn = -1;
57 int totout = 1;
58 int ulfont = ULFONT;
59 int tabch = TAB;
60 int ldrch = LEADER;
61
62
63 Contab contab[NM] = {
64 C(PAIR('d', 's'), caseds),
65 C(PAIR('a', 's'), caseas),
66 C(PAIR('s', 'p'), casesp),
67 C(PAIR('f', 't'), caseft),
68 C(PAIR('p', 's'), caseps),
69 C(PAIR('v', 's'), casevs),
70 C(PAIR('n', 'r'), casenr),
71 C(PAIR('i', 'f'), caseif),
72 C(PAIR('i', 'e'), caseie),
73 C(PAIR('e', 'l'), caseel),
74 C(PAIR('p', 'o'), casepo),
75 C(PAIR('t', 'l'), casetl),
76 C(PAIR('t', 'm'), casetm),
77 C(PAIR('f', 'm'), casefm),
78 C(PAIR('b', 'p'), casebp),
79 C(PAIR('c', 'h'), casech),
80 C(PAIR('p', 'n'), casepn),
81 C(PAIR('b', 'r'), tbreak),
82 C(PAIR('t', 'i'), caseti),
83 C(PAIR('n', 'e'), casene),
84 C(PAIR('n', 'f'), casenf),
85 C(PAIR('c', 'e'), casece),
86 C(PAIR('f', 'i'), casefi),
87 C(PAIR('i', 'n'), casein),
88 C(PAIR('l', 'l'), casell),
89 C(PAIR('n', 's'), casens),
90 C(PAIR('m', 'k'), casemk),
91 C(PAIR('r', 't'), casert),
92 C(PAIR('a', 'm'), caseam),
93 C(PAIR('d', 'e'), casede),
94 C(PAIR('d', 'i'), casedi),
95 C(PAIR('d', 'a'), caseda),
96 C(PAIR('w', 'h'), casewh),
97 C(PAIR('d', 't'), casedt),
98 C(PAIR('i', 't'), caseit),
99 C(PAIR('r', 'm'), caserm),
100 C(PAIR('r', 'r'), caserr),
101 C(PAIR('r', 'n'), casern),
102 C(PAIR('a', 'd'), casead),
103 C(PAIR('r', 's'), casers),
104 C(PAIR('n', 'a'), casena),
105 C(PAIR('p', 'l'), casepl),
106 C(PAIR('t', 'a'), caseta),
107 C(PAIR('t', 'r'), casetr),
108 C(PAIR('u', 'l'), caseul),
109 C(PAIR('c', 'u'), casecu),
110 C(PAIR('l', 't'), caselt),
111 C(PAIR('n', 'x'), casenx),
112 C(PAIR('s', 'o'), caseso),
113 C(PAIR('i', 'g'), caseig),
114 C(PAIR('t', 'c'), casetc),
115 C(PAIR('f', 'c'), casefc),
116 C(PAIR('e', 'c'), caseec),
117 C(PAIR('e', 'o'), caseeo),
118 C(PAIR('l', 'c'), caselc),
119 C(PAIR('e', 'v'), caseev),
120 C(PAIR('r', 'd'), caserd),
121 C(PAIR('a', 'b'), caseab),
122 C(PAIR('f', 'l'), casefl),
123 C(PAIR('e', 'x'), caseex),
124 C(PAIR('s', 's'), casess),
125 C(PAIR('f', 'p'), casefp),
126 C(PAIR('c', 's'), casecs),
127 C(PAIR('b', 'd'), casebd),
128 C(PAIR('l', 'g'), caselg),
129 C(PAIR('h', 'c'), casehc),
130 C(PAIR('h', 'y'), casehy),
131 C(PAIR('n', 'h'), casenh),
132 C(PAIR('n', 'm'), casenm),
133 C(PAIR('n', 'n'), casenn),
134 C(PAIR('s', 'v'), casesv),
135 C(PAIR('o', 's'), caseos),
136 C(PAIR('l', 's'), casels),
137 C(PAIR('c', 'c'), casecc),
138 C(PAIR('c', '2'), casec2),
139 C(PAIR('e', 'm'), caseem),
140 C(PAIR('a', 'f'), caseaf),
141 C(PAIR('h', 'a'), caseha),
142 C(PAIR('h', 'w'), casehw),
143 C(PAIR('m', 'c'), casemc),
144 C(PAIR('p', 'm'), casepm),
145 C(PAIR('p', 'i'), casepi),
146 C(PAIR('u', 'f'), caseuf),
147 C(PAIR('p', 'c'), casepc),
148 C(PAIR('h', 't'), caseht),
149 C(PAIR('c', 'f'), casecf),
150 C(PAIR('s', 'y'), casesy),
151 C(PAIR('l', 'f'), caself),
152 C(PAIR('p', 't'), casept),
153 C(PAIR('g', 'd'), casegd)
154 };
155
156
157 Tbuf _oline;
158
159 /*
160 * troff environment block
161 */
162
163 Env env[NEV] = { { /* this sets up env[0] */
164 /* int ics */ 0, /* insertion character space, set by .mc */
165 /* int sps */ 0,
166 /* int spacesz */ 0,
167 /* int lss */ 0,
168 /* int lss1 */ 0,
169 /* int ll */ 0,
170 /* int ll1 */ 0,
171 /* int lt */ 0,
172 /* int lt1 */ 0,
173 /* Tchar ic */ 0, /* insertion character (= margin character) */
174 /* int icf */ 0, /* insertion character flag */
175 /* Tchar chbits */ 0, /* size+font bits for current character */
176 /* Tchar spbits */ 0,
177 /* Tchar nmbits */ 0, /* size+font bits for number from .nm */
178 /* int apts */ PS, /* actual point size -- as requested by user */
179 /* int apts1 */ PS, /* need not match an existent size */
180 /* int pts */ PS, /* hence, this is the size that really exists */
181 /* int pts1 */ PS,
182 /* int font */ FT,
183 /* int font1 */ FT,
184 /* int ls */ 1,
185 /* int ls1 */ 1,
186 /* int ad */ 1,
187 /* int nms */ 1, /* .nm multiplier */
188 /* int ndf */ 1, /* .nm separator */
189 /* int nmwid */ 3, /* max width of .nm numbers */
190 /* int fi */ 1,
191 /* int cc */ '.',
192 /* int c2 */ '\'',
193 /* int ohc */ OHC,
194 /* int tdelim */ IMP,
195 /* int hyf */ 1,
196 /* int hyoff */ 0,
197 /* int hyphalg */ HYPHALG,
198 /* int un1 */ -1,
199 /* int tabc */ 0,
200 /* int dotc */ '.',
201 /* int adsp */ 0, /* add this much space to each padding point */
202 /* int adrem */ 0, /* excess space to add until it runs out */
203 /* int lastl */ 0, /* last text on current output line */
204 /* int nel */ 0, /* how much space left on current output line */
205 /* int admod */ 0, /* adjust mode */
206 /* Tchar *wordp */ 0,
207 /* int spflg */ 0, /* probably to indicate space after punctuation needed */
208 /* Tchar *linep */ 0,
209 /* Tchar *wdend */ 0,
210 /* Tchar *wdstart */ 0,
211 /* int wne */ 0,
212 /* int ne */ 0, /* how much space taken on current output line */
213 /* int nc */ 0, /* #characters (incl blank) on output line */
214 /* int nb */ 0,
215 /* int lnmod */ 0, /* line number mode, set by .nm */
216 /* int nwd */ 0, /* number of words on current output line */
217 /* int nn */ 0, /* from .nn command */
218 /* int ni */ 0, /* indent of .nm numbers, probably */
219 /* int ul */ 0,
220 /* int cu */ 0,
221 /* int ce */ 0,
222 /* int in */ 0, /* indent and previous value */
223 /* int in1 */ 0,
224 /* int un */ 0, /* unindent of left margin in some way */
225 /* int wch */ 0,
226 /* int pendt */ 0,
227 /* Tchar *pendw */ (Tchar *)0,
228 /* int pendnf */ 0,
229 /* int spread */ 0,
230 /* int it */ 0, /* input trap count */
231 /* int itmac */ 0
232 } };
233
234 Env *envp = env; /* start off in env 0 */
235
236 Numerr numerr;
237
238 Stack *frame, *stk, *ejl;
239 Stack *nxf;
240
241 int pipeflg;
242 int hflg; /* used in nroff only */
243 int eqflg; /* used in nroff only */
244
245 int xpts;
246 int ppts;
247 int pfont;
248 int mpts;
249 int mfont;
250 int cs;
251 int ccs;
252 int bd;
253
254 int stdi;
255 int quiet;
256 int stop;
257 char ibuf[IBUFSZ];
258 char xbuf[IBUFSZ];
259 char *ibufp;
260 char *xbufp;
261 char *eibuf;
262 char *xeibuf;
263 Tchar pbbuf[NC]; /* pushback buffer for arguments, \n, etc. */
264 Tchar *pbp = pbbuf; /* next free slot in pbbuf */
265 Tchar *lastpbp = pbbuf; /* pbp in previous stack frame */
266 int nx;
267 int mflg;
268 Tchar ch = 0;
269 int ibf;
270 int ifi;
271 int iflg;
272 int rargc;
273 char **argp;
274 Ushort trtab[NTRTAB];
275 int lgf;
276 int copyf;
277 Offset ip;
278 int nlflg;
279 int donef;
280 int nflush;
281 int nfo;
282 int padc;
283 int raw;
284 int flss;
285 int nonumb;
286 int trap;
287 int tflg;
288 int ejf;
289 int dilev;
290 Offset offset;
291 int em;
292 int ds;
293 Offset woff;
294 int app;
295 int ndone;
296 int lead;
297 int ralss;
298 Offset nextb;
299 Tchar nrbits;
300 int nform;
301 int oldmn;
302 int newmn;
303 int macerr;
304 Offset apptr;
305 int diflg;
306 int evi;
307 int vflag;
308 int noscale;
309 int po1;
310 int nlist[NTRAP];
311 int mlist[NTRAP];
312 int evlist[EVLSZ];
313 int ev;
314 int tty;
315 int sfont = FT; /* appears to be "standard" font; used by .ul */
316 int sv;
317 int esc;
318 int widthp;
319 int xfont;
320 int setwdf;
321 int over;
322 int nhyp;
323 Tchar **hyp;
324 Tchar *olinep;
325 int dotT;
326 char *unlkp;
327 Wcache widcache[NWIDCACHE];
328 Diver d[NDI];
329 Diver *dip;
330
331 int c_hyphen;
332 int c_emdash;
333 int c_rule;
334 int c_minus;
335 int c_fi;
336 int c_fl;
337 int c_ff;
338 int c_ffi;
339 int c_ffl;
340 int c_acute;
341 int c_grave;
342 int c_under;
343 int c_rooten;
344 int c_boxrule;
345 int c_lefthand;
346 int c_dagger;
347 int c_isalnum;
348
349 Spnames spnames[] =
350 {
351 &c_hyphen, "hy",
352 &c_emdash, "em",
353 &c_rule, "ru",
354 &c_minus, "\\-",
355 &c_fi, "fi",
356 &c_fl, "fl",
357 &c_ff, "ff",
358 &c_ffi, "Fi",
359 &c_ffl, "Fl",
360 &c_acute, "aa",
361 &c_grave, "ga",
362 &c_under, "ul",
363 &c_rooten, "rn",
364 &c_boxrule, "br",
365 &c_lefthand, "lh",
366 &c_dagger, "dg", /* not in nroff?? */
367 &c_isalnum, "__",
368 0, 0
369 };
370
371
372 Tchar (*hmot)(void);
373 Tchar (*makem)(int i);
374 Tchar (*setabs)(void);
375 Tchar (*setch)(int c);
376 Tchar (*sethl)(int k);
377 Tchar (*setht)(void);
378 Tchar (*setslant)(void);
379 Tchar (*vmot)(void);
380 Tchar (*xlss)(void);
381 int (*findft)(int i);
382 int (*width)(Tchar j);
383 void (*mchbits)(void);
384 void (*ptlead)(void);
385 void (*ptout)(Tchar i);
386 void (*ptpause)(void);
387 void (*setfont)(int a);
388 void (*setps)(void);
389 void (*setwd)(void);
390