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