d7482997 |
1 | /* |
2 | * main.c: command line parsing and top level |
3 | */ |
4 | |
c8fb54d2 |
5 | #include <assert.h> |
d7482997 |
6 | #include <stdio.h> |
7 | #include <stdlib.h> |
8 | #include "halibut.h" |
9 | |
10 | static void dbg_prtsource(paragraph *sourceform); |
11 | static void dbg_prtwordlist(int level, word *w); |
12 | static void dbg_prtkws(keywordlist *kws); |
13 | |
43341922 |
14 | static const struct pre_backend { |
15 | void *(*func)(paragraph *, keywordlist *, indexdata *); |
16 | int bitfield; |
17 | } pre_backends[] = { |
18 | {paper_pre_backend, 0x0001} |
19 | }; |
20 | |
c8fb54d2 |
21 | static const struct backend { |
22 | char *name; |
43341922 |
23 | void (*func)(paragraph *, keywordlist *, indexdata *, void *); |
ba9c1487 |
24 | paragraph *(*filename)(char *filename); |
43341922 |
25 | int bitfield, prebackend_bitfield; |
c8fb54d2 |
26 | } backends[] = { |
43341922 |
27 | {"text", text_backend, text_config_filename, 0x0001, 0}, |
28 | {"xhtml", xhtml_backend, xhtml_config_filename, 0x0002, 0}, |
29 | {"html", xhtml_backend, xhtml_config_filename, 0x0002, 0}, |
30 | {"hlp", whlp_backend, whlp_config_filename, 0x0004, 0}, |
31 | {"whlp", whlp_backend, whlp_config_filename, 0x0004, 0}, |
32 | {"winhelp", whlp_backend, whlp_config_filename, 0x0004, 0}, |
33 | {"man", man_backend, man_config_filename, 0x0008, 0}, |
34 | {"info", info_backend, info_config_filename, 0x0010, 0}, |
35 | {"ps", ps_backend, ps_config_filename, 0x0020, 0x0001}, |
36 | {"pdf", pdf_backend, pdf_config_filename, 0x0040, 0x0001}, |
c8fb54d2 |
37 | }; |
38 | |
d7482997 |
39 | int main(int argc, char **argv) { |
40 | char **infiles; |
d7482997 |
41 | int nfiles; |
42 | int nogo; |
43 | int errs; |
44 | int reportcols; |
45 | int debug; |
43341922 |
46 | int backendbits, prebackbits; |
c8fb54d2 |
47 | int k, b; |
6a0b9d08 |
48 | paragraph *cfg, *cfg_tail; |
43341922 |
49 | void *pre_backend_data[16]; |
d7482997 |
50 | |
51 | /* |
52 | * Set up initial (default) parameters. |
53 | */ |
54 | infiles = mknewa(char *, argc); |
d7482997 |
55 | nfiles = 0; |
56 | nogo = errs = FALSE; |
57 | reportcols = 0; |
58 | debug = 0; |
c8fb54d2 |
59 | backendbits = 0; |
6a0b9d08 |
60 | cfg = cfg_tail = NULL; |
d7482997 |
61 | |
62 | if (argc == 1) { |
63 | usage(); |
64 | exit(EXIT_SUCCESS); |
65 | } |
66 | |
67 | /* |
68 | * Parse command line arguments. |
69 | */ |
70 | while (--argc) { |
71 | char *p = *++argv; |
72 | if (*p == '-') { |
73 | /* |
74 | * An option. |
75 | */ |
76 | while (p && *++p) { |
77 | char c = *p; |
78 | switch (c) { |
79 | case '-': |
80 | /* |
81 | * Long option. |
82 | */ |
83 | { |
84 | char *opt, *val; |
85 | opt = p++; /* opt will have _one_ leading - */ |
86 | while (*p && *p != '=') |
87 | p++; /* find end of option */ |
88 | if (*p == '=') { |
89 | *p++ = '\0'; |
90 | val = p; |
91 | } else |
92 | val = NULL; |
c8fb54d2 |
93 | |
94 | assert(opt[0] == '-'); |
95 | for (k = 0; k < (int)lenof(backends); k++) |
96 | if (!strcmp(opt+1, backends[k].name)) { |
97 | backendbits |= backends[k].bitfield; |
ba9c1487 |
98 | if (val) { |
99 | paragraph *p = backends[k].filename(val); |
100 | assert(p); |
101 | if (cfg_tail) |
102 | cfg_tail->next = p; |
103 | else |
104 | cfg = p; |
105 | while (p->next) |
106 | p = p->next; |
107 | cfg_tail = p; |
108 | } |
c8fb54d2 |
109 | break; |
110 | } |
111 | if (k < (int)lenof(backends)) { |
112 | /* do nothing */; |
113 | } else if (!strcmp(opt, "-help")) { |
d7482997 |
114 | help(); |
115 | nogo = TRUE; |
116 | } else if (!strcmp(opt, "-version")) { |
117 | showversion(); |
118 | nogo = TRUE; |
119 | } else if (!strcmp(opt, "-licence") || |
120 | !strcmp(opt, "-license")) { |
121 | licence(); |
122 | nogo = TRUE; |
d7482997 |
123 | } else if (!strcmp(opt, "-precise")) { |
124 | reportcols = 1; |
125 | } else { |
126 | errs = TRUE, error(err_nosuchopt, opt); |
127 | } |
128 | } |
129 | p = NULL; |
130 | break; |
131 | case 'h': |
132 | case 'V': |
133 | case 'L': |
134 | case 'P': |
135 | case 'd': |
136 | /* |
137 | * Option requiring no parameter. |
138 | */ |
139 | switch (c) { |
140 | case 'h': |
141 | help(); |
142 | nogo = TRUE; |
143 | break; |
144 | case 'V': |
145 | showversion(); |
146 | nogo = TRUE; |
147 | break; |
148 | case 'L': |
149 | licence(); |
150 | nogo = TRUE; |
151 | break; |
152 | case 'P': |
153 | reportcols = 1; |
154 | break; |
155 | case 'd': |
156 | debug = TRUE; |
157 | break; |
158 | } |
159 | break; |
6a0b9d08 |
160 | case 'C': |
d7482997 |
161 | /* |
162 | * Option requiring parameter. |
163 | */ |
164 | p++; |
165 | if (!*p && argc > 1) |
166 | --argc, p = *++argv; |
167 | else if (!*p) { |
168 | char opt[2]; |
169 | opt[0] = c; |
170 | opt[1] = '\0'; |
171 | errs = TRUE, error(err_optnoarg, opt); |
172 | } |
173 | /* |
174 | * Now c is the option and p is the parameter. |
175 | */ |
176 | switch (c) { |
6a0b9d08 |
177 | case 'C': |
178 | /* |
179 | * -C means we split our argument up into |
180 | * colon-separated chunks and assemble them |
181 | * into a config paragraph. |
182 | */ |
183 | { |
184 | wchar_t *keywords; |
185 | char *q; |
186 | wchar_t *u; |
187 | paragraph *para; |
188 | |
189 | keywords = mknewa(wchar_t, 2+strlen(p)); |
190 | |
191 | u = keywords; |
192 | q = p; |
193 | |
194 | while (*q) { |
195 | if (*q == ':') { |
196 | *u++ = L'\0'; |
197 | } else { |
198 | if (*q == '\\' && q[1]) |
199 | q++; |
200 | /* FIXME: lacks charset flexibility */ |
201 | *u++ = *q; |
202 | } |
203 | q++; |
204 | } |
205 | *u = L'\0'; |
206 | |
207 | para = mknew(paragraph); |
208 | memset(para, 0, sizeof(*para)); |
209 | para->type = para_Config; |
210 | para->keyword = keywords; |
211 | para->next = NULL; |
212 | para->fpos.filename = "<command line>"; |
213 | para->fpos.line = para->fpos.col = -1; |
214 | |
215 | if (cfg_tail) |
216 | cfg_tail->next = para; |
217 | else |
218 | cfg = para; |
219 | cfg_tail = para; |
220 | } |
d7482997 |
221 | break; |
222 | } |
223 | p = NULL; /* prevent continued processing */ |
224 | break; |
225 | default: |
226 | /* |
227 | * Unrecognised option. |
228 | */ |
229 | { |
230 | char opt[2]; |
231 | opt[0] = c; |
232 | opt[1] = '\0'; |
233 | errs = TRUE, error(err_nosuchopt, opt); |
234 | } |
235 | } |
236 | } |
237 | } else { |
238 | /* |
239 | * A non-option argument. |
240 | */ |
241 | infiles[nfiles++] = p; |
242 | } |
243 | } |
244 | |
245 | if (errs) |
246 | exit(EXIT_FAILURE); |
247 | if (nogo) |
248 | exit(EXIT_SUCCESS); |
249 | |
250 | /* |
251 | * Do the work. |
252 | */ |
253 | if (nfiles == 0) { |
254 | error(err_noinput); |
255 | usage(); |
256 | exit(EXIT_FAILURE); |
257 | } |
258 | |
259 | { |
260 | input in; |
261 | paragraph *sourceform, *p; |
262 | indexdata *idx; |
263 | keywordlist *keywords; |
264 | |
265 | in.filenames = infiles; |
266 | in.nfiles = nfiles; |
267 | in.currfp = NULL; |
268 | in.currindex = 0; |
269 | in.npushback = in.pushbacksize = 0; |
270 | in.pushback = NULL; |
271 | in.reportcols = reportcols; |
272 | in.stack = NULL; |
273 | |
274 | idx = make_index(); |
275 | |
276 | sourceform = read_input(&in, idx); |
277 | if (!sourceform) |
278 | exit(EXIT_FAILURE); |
279 | |
6a0b9d08 |
280 | /* |
281 | * Append the config directives acquired from the command |
282 | * line. |
283 | */ |
284 | { |
285 | paragraph *end; |
286 | |
287 | end = sourceform; |
288 | while (end && end->next) |
289 | end = end->next; |
290 | assert(end); |
291 | |
292 | end->next = cfg; |
293 | } |
294 | |
d7482997 |
295 | sfree(in.pushback); |
296 | |
297 | mark_attr_ends(sourceform); |
298 | |
299 | sfree(infiles); |
300 | |
301 | keywords = get_keywords(sourceform); |
302 | if (!keywords) |
303 | exit(EXIT_FAILURE); |
304 | gen_citations(sourceform, keywords); |
305 | subst_keywords(sourceform, keywords); |
306 | |
307 | for (p = sourceform; p; p = p->next) |
308 | if (p->type == para_IM) |
f4551933 |
309 | index_merge(idx, TRUE, p->keyword, p->words, &p->fpos); |
d7482997 |
310 | |
311 | build_index(idx); |
312 | |
313 | if (debug) { |
314 | index_debug(idx); |
315 | dbg_prtkws(keywords); |
316 | dbg_prtsource(sourceform); |
317 | } |
318 | |
c8fb54d2 |
319 | /* |
43341922 |
320 | * Select and run the pre-backends. |
321 | */ |
322 | prebackbits = 0; |
323 | for (k = 0; k < (int)lenof(backends); k++) |
324 | if (backendbits == 0 || (backendbits & backends[k].bitfield)) |
325 | prebackbits |= backends[k].prebackend_bitfield; |
326 | for (k = 0; k < (int)lenof(pre_backends); k++) |
327 | if (prebackbits & pre_backends[k].bitfield) { |
328 | assert(k < (int)lenof(pre_backend_data)); |
329 | pre_backend_data[k] = |
330 | pre_backends[k].func(sourceform, keywords, idx); |
331 | } |
332 | |
333 | /* |
c8fb54d2 |
334 | * Run the selected set of backends. |
335 | */ |
336 | for (k = b = 0; k < (int)lenof(backends); k++) |
337 | if (b != backends[k].bitfield) { |
338 | b = backends[k].bitfield; |
43341922 |
339 | if (backendbits == 0 || (backendbits & b)) { |
340 | void *pbd = NULL; |
341 | int pbb = backends[k].prebackend_bitfield; |
342 | int m; |
343 | |
344 | for (m = 0; m < (int)lenof(pre_backends); m++) |
345 | if (pbb & pre_backends[m].bitfield) { |
346 | assert(m < (int)lenof(pre_backend_data)); |
347 | pbd = pre_backend_data[m]; |
348 | break; |
349 | } |
350 | |
351 | backends[k].func(sourceform, keywords, idx, pbd); |
352 | } |
c8fb54d2 |
353 | } |
d7482997 |
354 | |
355 | free_para_list(sourceform); |
356 | free_keywords(keywords); |
357 | cleanup_index(idx); |
358 | } |
359 | |
360 | return 0; |
361 | } |
362 | |
363 | static void dbg_prtsource(paragraph *sourceform) { |
364 | /* |
365 | * Output source form in debugging format. |
366 | */ |
367 | |
368 | paragraph *p; |
369 | for (p = sourceform; p; p = p->next) { |
370 | wchar_t *wp; |
371 | printf("para %d ", p->type); |
372 | if (p->keyword) { |
373 | wp = p->keyword; |
374 | while (*wp) { |
375 | putchar('\"'); |
376 | for (; *wp; wp++) |
377 | putchar(*wp); |
378 | putchar('\"'); |
379 | if (*++wp) |
380 | printf(", "); |
381 | } |
382 | } else |
383 | printf("(no keyword)"); |
384 | printf(" {\n"); |
385 | dbg_prtwordlist(1, p->words); |
386 | printf("}\n"); |
387 | } |
388 | } |
389 | |
390 | static void dbg_prtkws(keywordlist *kws) { |
391 | /* |
392 | * Output keywords in debugging format. |
393 | */ |
394 | |
395 | int i; |
396 | keyword *kw; |
397 | |
398 | for (i = 0; (kw = index234(kws->keys, i)) != NULL; i++) { |
399 | wchar_t *wp; |
400 | printf("keyword "); |
401 | wp = kw->key; |
402 | while (*wp) { |
403 | putchar('\"'); |
404 | for (; *wp; wp++) |
405 | putchar(*wp); |
406 | putchar('\"'); |
407 | if (*++wp) |
408 | printf(", "); |
409 | } |
410 | printf(" {\n"); |
411 | dbg_prtwordlist(1, kw->text); |
412 | printf("}\n"); |
413 | } |
414 | } |
415 | |
416 | static void dbg_prtwordlist(int level, word *w) { |
417 | for (; w; w = w->next) { |
418 | wchar_t *wp; |
419 | printf("%*sword %d ", level*4, "", w->type); |
420 | if (w->text) { |
421 | printf("\""); |
422 | for (wp = w->text; *wp; wp++) |
423 | putchar(*wp); |
424 | printf("\""); |
425 | } else |
426 | printf("(no text)"); |
427 | if (w->alt) { |
428 | printf(" alt = {\n"); |
429 | dbg_prtwordlist(level+1, w->alt); |
430 | printf("%*s}", level*4, ""); |
431 | } |
432 | printf("\n"); |
433 | } |
434 | } |