Annotation of mandoc/mdoc.c, Revision 1.21
1.21 ! kristaps 1: /* $Id: mdoc.c,v 1.20 2009/01/07 15:53:00 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
20: #include <ctype.h>
21: #include <err.h>
22: #include <stdarg.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26:
27: #include "private.h"
28:
29: const char *const __mdoc_macronames[MDOC_MAX] = {
30: "\\\"", "Dd", "Dt", "Os",
31: "Sh", "Ss", "Pp", "D1",
32: "Dl", "Bd", "Ed", "Bl",
33: "El", "It", "Ad", "An",
34: "Ar", "Cd", "Cm", "Dv",
35: "Er", "Ev", "Ex", "Fa",
36: "Fd", "Fl", "Fn", "Ft",
37: "Ic", "In", "Li", "Nd",
38: "Nm", "Op", "Ot", "Pa",
39: "Rv", "St", "Va", "Vt",
40: /* LINTED */
41: "Xr", "\%A", "\%B", "\%D",
42: /* LINTED */
43: "\%I", "\%J", "\%N", "\%O",
44: /* LINTED */
45: "\%P", "\%R", "\%T", "\%V",
46: "Ac", "Ao", "Aq", "At",
47: "Bc", "Bf", "Bo", "Bq",
48: "Bsx", "Bx", "Db", "Dc",
49: "Do", "Dq", "Ec", "Ef",
50: "Em", "Eo", "Fx", "Ms",
51: "No", "Ns", "Nx", "Ox",
52: "Pc", "Pf", "Po", "Pq",
53: "Qc", "Ql", "Qo", "Qq",
54: "Re", "Rs", "Sc", "So",
55: "Sq", "Sm", "Sx", "Sy",
56: "Tn", "Ux", "Xc", "Xo",
57: "Fo", "Fc", "Oo", "Oc",
58: "Bk", "Ek", "Bt", "Hf",
59: "Fr", "Ud",
60: };
61:
62: const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
63: "split", "nosplit", "ragged",
64: "unfilled", "literal", "file",
65: "offset", "bullet", "dash",
66: "hyphen", "item", "enum",
67: "tag", "diag", "hang",
68: "ohang", "inset", "column",
69: "width", "compact", "std",
70: "p1003.1-88", "p1003.1-90", "p1003.1-96",
71: "p1003.1-2001", "p1003.1-2004", "p1003.1",
72: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
73: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
74: "p1003.2", "p1387.2", "isoC-90",
75: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
76: "isoC-99", "ansiC", "ansiC-89",
77: "ansiC-99", "ieee754", "iso8802-3",
78: "xpg3", "xpg4", "xpg4.2",
79: "xpg4.3", "xbd5", "xcu5",
80: "xsh5", "xns5", "xns5.2d2.0",
81: "xcurses4.2", "susv2", "susv3",
82: "svid4", "filled", "words",
1.14 kristaps 83: "emphasis", "symbolic",
1.1 kristaps 84: };
85:
86: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
87: { NULL, 0 }, /* \" */
1.17 kristaps 88: { macro_prologue, MDOC_PROLOGUE }, /* Dd */
89: { macro_prologue, MDOC_PROLOGUE }, /* Dt */
90: { macro_prologue, MDOC_PROLOGUE }, /* Os */
1.13 kristaps 91: { macro_scoped, 0 }, /* Sh */
92: { macro_scoped, 0 }, /* Ss */
1.5 kristaps 93: { macro_text, 0 }, /* Pp */
1.19 kristaps 94: { macro_scoped_line, MDOC_PARSED }, /* D1 */
95: { macro_scoped_line, MDOC_PARSED }, /* Dl */
1.13 kristaps 96: { macro_scoped, MDOC_EXPLICIT }, /* Bd */
97: { macro_close_explicit, 0 }, /* Ed */
98: { macro_scoped, MDOC_EXPLICIT }, /* Bl */
99: { macro_close_explicit, 0 }, /* El */
1.19 kristaps 100: { macro_scoped, MDOC_NESTED | MDOC_PARSED }, /* It */
101: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
102: { macro_constant, MDOC_PARSED }, /* An */
103: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.12 kristaps 104: { macro_constant, MDOC_QUOTABLE }, /* Cd */
1.19 kristaps 105: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
106: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
107: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
108: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.13 kristaps 109: { macro_constant, 0 }, /* Ex */
1.19 kristaps 110: { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE | MDOC_PARSED }, /* Fa */
1.13 kristaps 111: { macro_constant, 0 }, /* Fd */
1.19 kristaps 112: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
113: { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE | MDOC_PARSED }, /* Fn */
114: { macro_text, MDOC_PARSED }, /* Ft */
115: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.13 kristaps 116: { macro_constant, 0 }, /* In */
1.19 kristaps 117: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.10 kristaps 118: { macro_constant, 0 }, /* Nd */
1.19 kristaps 119: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
120: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.13 kristaps 121: { macro_obsolete, 0 }, /* Ot */
1.19 kristaps 122: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
1.13 kristaps 123: { macro_constant, 0 }, /* Rv */
1.19 kristaps 124: /* XXX - supposed to be (but isn't) callable. */
125: { macro_constant_delimited, MDOC_PARSED }, /* St */
126: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
127: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
128: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
129: { macro_constant, MDOC_QUOTABLE | MDOC_PARSED }, /* %A */
130: { macro_constant, MDOC_QUOTABLE | MDOC_PARSED }, /* %B */
1.13 kristaps 131: { macro_constant, MDOC_QUOTABLE }, /* %D */
1.19 kristaps 132: { macro_constant, MDOC_QUOTABLE | MDOC_PARSED }, /* %I */
133: { macro_constant, MDOC_QUOTABLE | MDOC_PARSED }, /* %J */
1.13 kristaps 134: { macro_constant, MDOC_QUOTABLE }, /* %N */
135: { macro_constant, MDOC_QUOTABLE }, /* %O */
136: { macro_constant, MDOC_QUOTABLE }, /* %P */
137: { macro_constant, MDOC_QUOTABLE }, /* %R */
1.19 kristaps 138: { macro_constant, MDOC_QUOTABLE | MDOC_PARSED }, /* %T */
1.13 kristaps 139: { macro_constant, MDOC_QUOTABLE }, /* %V */
1.19 kristaps 140: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
141: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Ao */
142: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
1.9 kristaps 143: { macro_constant, 0 }, /* At */
1.19 kristaps 144: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
1.16 kristaps 145: { macro_scoped, MDOC_EXPLICIT }, /* Bf */
1.19 kristaps 146: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Bo */
147: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
148: { macro_constant_delimited, MDOC_PARSED }, /* Bsx */
149: { macro_constant_delimited, MDOC_PARSED }, /* Bx */
1.13 kristaps 150: { macro_constant, 0 }, /* Db */
1.19 kristaps 151: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
152: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Do */
153: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
154: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
1.14 kristaps 155: { macro_close_explicit, 0 }, /* Ef */
1.19 kristaps 156: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
157: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Eo */
158: { macro_constant_delimited, MDOC_PARSED }, /* Fx */
159: { macro_text, MDOC_PARSED }, /* Ms */
160: { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* No */
161: { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
162: { macro_constant_delimited, MDOC_PARSED }, /* Nx */
163: { macro_constant_delimited, MDOC_PARSED }, /* Ox */
164: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
165: { macro_constant, MDOC_PARSED }, /* Pf */
166: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Po */
167: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
168: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
169: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
170: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Qo */
171: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
1.18 kristaps 172: { macro_close_explicit, 0 }, /* Re */
1.13 kristaps 173: { macro_scoped, MDOC_EXPLICIT }, /* Rs */
1.19 kristaps 174: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
175: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* So */
176: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
1.13 kristaps 177: { macro_constant, 0 }, /* Sm */
1.19 kristaps 178: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
179: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
180: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
181: { macro_constant_delimited, MDOC_PARSED }, /* Ux */
182: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
183: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Xo */
184: /* XXX - .Fo supposed to be (but isn't) callable. */
185: { macro_scoped, MDOC_EXPLICIT | MDOC_PARSED }, /* Fo */
186: /* XXX - .Fc supposed to be (but isn't) callable. */
187: { macro_close_explicit, MDOC_PARSED }, /* Fc */
188: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED }, /* Oo */
189: { macro_close_explicit, MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
1.17 kristaps 190: { macro_scoped, MDOC_EXPLICIT }, /* Bk */
191: { macro_close_explicit, 0 }, /* Ek */
1.9 kristaps 192: { macro_constant, 0 }, /* Bt */
1.10 kristaps 193: { macro_constant, 0 }, /* Hf */
1.12 kristaps 194: { macro_obsolete, 0 }, /* Fr */
1.9 kristaps 195: { macro_constant, 0 }, /* Ud */
1.1 kristaps 196: };
197:
198: const char * const *mdoc_macronames = __mdoc_macronames;
199: const char * const *mdoc_argnames = __mdoc_argnames;
200: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
201:
202:
203: static struct mdoc_arg *argdup(size_t, const struct mdoc_arg *);
204: static void argfree(size_t, struct mdoc_arg *);
205: static void argcpy(struct mdoc_arg *,
206: const struct mdoc_arg *);
207:
208: static void mdoc_node_freelist(struct mdoc_node *);
209: static void mdoc_node_append(struct mdoc *, int,
210: struct mdoc_node *);
211: static void mdoc_elem_free(struct mdoc_elem *);
212: static void mdoc_text_free(struct mdoc_text *);
213:
214:
215: const struct mdoc_node *
216: mdoc_result(struct mdoc *mdoc)
217: {
218:
219: return(mdoc->first);
220: }
221:
222:
223: void
224: mdoc_free(struct mdoc *mdoc)
225: {
226:
227: if (mdoc->first)
228: mdoc_node_freelist(mdoc->first);
229: if (mdoc->htab)
1.4 kristaps 230: mdoc_tokhash_free(mdoc->htab);
1.1 kristaps 231:
232: free(mdoc);
233: }
234:
235:
236: struct mdoc *
237: mdoc_alloc(void *data, const struct mdoc_cb *cb)
238: {
239: struct mdoc *p;
240:
241: p = xcalloc(1, sizeof(struct mdoc));
242:
243: p->data = data;
244: (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
245:
1.4 kristaps 246: p->htab = mdoc_tokhash_alloc();
1.1 kristaps 247: return(p);
248: }
249:
250:
251: int
1.20 kristaps 252: mdoc_endparse(struct mdoc *mdoc)
253: {
254:
255: if (MDOC_HALT & mdoc->flags)
256: return(0);
257: if (NULL == mdoc->first)
258: return(1);
259:
260: assert(mdoc->last);
261: if ( ! macro_end(mdoc)) {
262: mdoc->flags |= MDOC_HALT;
263: return(0);
264: }
265: return(1);
266: }
267:
268:
269: int
270: mdoc_parseln(struct mdoc *mdoc, int line, char *buf)
1.1 kristaps 271: {
272: int c, i;
273: char tmp[5];
274:
1.20 kristaps 275: if (MDOC_HALT & mdoc->flags)
276: return(0);
277:
1.5 kristaps 278: if ('.' != *buf) {
1.18 kristaps 279: if (SEC_PROLOGUE == mdoc->sec_lastn)
280: return(mdoc_err(mdoc, -1, 0, ERR_SYNTAX_NOTEXT));
1.5 kristaps 281: mdoc_word_alloc(mdoc, 0, buf);
1.13 kristaps 282: mdoc->next = MDOC_NEXT_SIBLING;
1.5 kristaps 283: return(1);
1.1 kristaps 284: }
285:
286: if (buf[1] && '\\' == buf[1])
287: if (buf[2] && '\"' == buf[2])
288: return(1);
289:
290: i = 1;
291: while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
292: i++;
293:
1.20 kristaps 294: if (i == (int)sizeof(tmp)) {
295: mdoc->flags |= MDOC_HALT;
1.1 kristaps 296: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
1.20 kristaps 297: } else if (i <= 2) {
298: mdoc->flags |= MDOC_HALT;
1.1 kristaps 299: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
1.20 kristaps 300: }
1.1 kristaps 301:
302: i--;
303:
1.2 kristaps 304: (void)memcpy(tmp, buf + 1, (size_t)i);
1.1 kristaps 305: tmp[i++] = 0;
306:
1.20 kristaps 307: if (MDOC_MAX == (c = mdoc_find(mdoc, tmp))) {
308: mdoc->flags |= MDOC_HALT;
1.1 kristaps 309: return(mdoc_err(mdoc, c, 1, ERR_MACRO_NOTSUP));
1.20 kristaps 310: }
1.1 kristaps 311:
312: while (buf[i] && isspace(buf[i]))
313: i++;
314:
1.21 ! kristaps 315: if ( ! mdoc_macro(mdoc, c, line, 1, &i, buf)) {
1.20 kristaps 316: mdoc->flags |= MDOC_HALT;
317: return(0);
318: }
319: return(1);
1.1 kristaps 320: }
321:
322:
323: void
324: mdoc_msg(struct mdoc *mdoc, int pos, const char *fmt, ...)
325: {
326: va_list ap;
327: char buf[256];
328:
329: if (NULL == mdoc->cb.mdoc_msg)
330: return;
331:
332: va_start(ap, fmt);
333: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
334: va_end(ap);
335:
336: (*mdoc->cb.mdoc_msg)(mdoc->data, pos, buf);
337: }
338:
339:
340: int
341: mdoc_err(struct mdoc *mdoc, int tok, int pos, enum mdoc_err type)
342: {
343:
344: if (NULL == mdoc->cb.mdoc_err)
345: return(0);
346: return((*mdoc->cb.mdoc_err)(mdoc->data, tok, pos, type));
347: }
348:
349:
350: int
351: mdoc_warn(struct mdoc *mdoc, int tok, int pos, enum mdoc_warn type)
352: {
353:
354: if (NULL == mdoc->cb.mdoc_warn)
355: return(0);
356: return((*mdoc->cb.mdoc_warn)(mdoc->data, tok, pos, type));
357: }
358:
359:
360: int
1.21 ! kristaps 361: mdoc_macro(struct mdoc *mdoc, int tok,
! 362: int line, int ppos, int *pos, char *buf)
1.1 kristaps 363: {
364:
1.17 kristaps 365: if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.13 kristaps 366: SEC_PROLOGUE == mdoc->sec_lastn)
367: return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
368:
1.1 kristaps 369: if (NULL == (mdoc_macros[tok].fp)) {
370: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTSUP);
371: return(0);
1.3 kristaps 372: }
373:
374: if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.1 kristaps 375: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTCALL);
376: return(0);
377: }
378:
1.21 ! kristaps 379: return((*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf));
1.1 kristaps 380: }
381:
382:
383: static void
384: mdoc_node_append(struct mdoc *mdoc, int pos, struct mdoc_node *p)
385: {
386: const char *nn, *on, *nt, *ot, *act;
387:
388: switch (p->type) {
389: case (MDOC_TEXT):
1.5 kristaps 390: nn = p->data.text.string;
1.1 kristaps 391: nt = "text";
392: break;
393: case (MDOC_BODY):
394: nn = mdoc_macronames[p->data.body.tok];
395: nt = "body";
396: break;
397: case (MDOC_ELEM):
398: nn = mdoc_macronames[p->data.elem.tok];
399: nt = "elem";
400: break;
401: case (MDOC_HEAD):
402: nn = mdoc_macronames[p->data.head.tok];
403: nt = "head";
404: break;
1.17 kristaps 405: case (MDOC_TAIL):
406: nn = mdoc_macronames[p->data.tail.tok];
407: nt = "tail";
408: break;
1.1 kristaps 409: case (MDOC_BLOCK):
410: nn = mdoc_macronames[p->data.block.tok];
411: nt = "block";
412: break;
1.2 kristaps 413: default:
414: abort();
415: /* NOTREACHED */
1.1 kristaps 416: }
417:
418: if (NULL == mdoc->first) {
419: assert(NULL == mdoc->last);
420: mdoc->first = p;
421: mdoc->last = p;
422: mdoc_msg(mdoc, pos, "parse: root %s `%s'", nt, nn);
423: return;
424: }
425:
426: switch (mdoc->last->type) {
427: case (MDOC_TEXT):
428: on = "<text>";
429: ot = "text";
430: break;
431: case (MDOC_BODY):
432: on = mdoc_macronames[mdoc->last->data.body.tok];
433: ot = "body";
434: break;
435: case (MDOC_ELEM):
436: on = mdoc_macronames[mdoc->last->data.elem.tok];
437: ot = "elem";
438: break;
439: case (MDOC_HEAD):
440: on = mdoc_macronames[mdoc->last->data.head.tok];
441: ot = "head";
442: break;
1.17 kristaps 443: case (MDOC_TAIL):
444: on = mdoc_macronames[mdoc->last->data.tail.tok];
445: ot = "tail";
446: break;
1.1 kristaps 447: case (MDOC_BLOCK):
448: on = mdoc_macronames[mdoc->last->data.block.tok];
449: ot = "block";
450: break;
1.2 kristaps 451: default:
452: abort();
453: /* NOTREACHED */
1.1 kristaps 454: }
455:
1.13 kristaps 456: switch (mdoc->next) {
457: case (MDOC_NEXT_SIBLING):
1.6 kristaps 458: mdoc->last->next = p;
459: p->prev = mdoc->last;
1.13 kristaps 460: p->parent = mdoc->last->parent;
1.6 kristaps 461: act = "sibling";
1.1 kristaps 462: break;
1.13 kristaps 463: case (MDOC_NEXT_CHILD):
464: mdoc->last->child = p;
1.1 kristaps 465: p->parent = mdoc->last;
466: act = "child";
467: break;
468: default:
1.13 kristaps 469: abort();
470: /* NOTREACHED */
1.1 kristaps 471: }
472:
1.13 kristaps 473: mdoc_msg(mdoc, pos, "parse: %s `%s' %s of %s `%s'",
1.1 kristaps 474: nt, nn, act, ot, on);
1.13 kristaps 475:
1.1 kristaps 476: mdoc->last = p;
477: }
478:
479:
480: void
1.17 kristaps 481: mdoc_tail_alloc(struct mdoc *mdoc, int pos, int tok)
482: {
483: struct mdoc_node *p;
484:
485: assert(mdoc->first);
486: assert(mdoc->last);
487:
488: p = xcalloc(1, sizeof(struct mdoc_node));
489:
490: p->type = MDOC_TAIL;
491: p->data.tail.tok = tok;
492:
493: mdoc_node_append(mdoc, pos, p);
494: }
495:
496:
497: void
1.13 kristaps 498: mdoc_head_alloc(struct mdoc *mdoc, int pos, int tok)
1.1 kristaps 499: {
500: struct mdoc_node *p;
501:
502: assert(mdoc->first);
503: assert(mdoc->last);
504:
505: p = xcalloc(1, sizeof(struct mdoc_node));
1.13 kristaps 506:
1.1 kristaps 507: p->type = MDOC_HEAD;
508: p->data.head.tok = tok;
509:
510: mdoc_node_append(mdoc, pos, p);
511: }
512:
513:
514: void
515: mdoc_body_alloc(struct mdoc *mdoc, int pos, int tok)
516: {
517: struct mdoc_node *p;
518:
519: assert(mdoc->first);
520: assert(mdoc->last);
521:
522: p = xcalloc(1, sizeof(struct mdoc_node));
523:
524: p->type = MDOC_BODY;
525: p->data.body.tok = tok;
526:
527: mdoc_node_append(mdoc, pos, p);
528: }
529:
530:
531: void
532: mdoc_block_alloc(struct mdoc *mdoc, int pos, int tok,
533: size_t argsz, const struct mdoc_arg *args)
534: {
535: struct mdoc_node *p;
536:
537: p = xcalloc(1, sizeof(struct mdoc_node));
538:
539: p->type = MDOC_BLOCK;
540: p->data.block.tok = tok;
541: p->data.block.argc = argsz;
542: p->data.block.argv = argdup(argsz, args);
543:
544: mdoc_node_append(mdoc, pos, p);
545: }
546:
547:
548: void
549: mdoc_elem_alloc(struct mdoc *mdoc, int pos, int tok,
1.15 kristaps 550: size_t argsz, const struct mdoc_arg *args)
1.1 kristaps 551: {
552: struct mdoc_node *p;
553:
554: p = xcalloc(1, sizeof(struct mdoc_node));
555: p->type = MDOC_ELEM;
556: p->data.elem.tok = tok;
557: p->data.elem.argc = argsz;
558: p->data.elem.argv = argdup(argsz, args);
559:
560: mdoc_node_append(mdoc, pos, p);
561: }
562:
563:
564: void
565: mdoc_word_alloc(struct mdoc *mdoc, int pos, const char *word)
566: {
567: struct mdoc_node *p;
568:
569: p = xcalloc(1, sizeof(struct mdoc_node));
570: p->type = MDOC_TEXT;
571: p->data.text.string = xstrdup(word);
572:
573: mdoc_node_append(mdoc, pos, p);
574: }
575:
576:
577: static void
578: argfree(size_t sz, struct mdoc_arg *p)
579: {
1.2 kristaps 580: int i, j;
1.1 kristaps 581:
582: if (0 == sz)
583: return;
584:
585: assert(p);
1.2 kristaps 586: /* LINTED */
587: for (i = 0; i < (int)sz; i++)
1.1 kristaps 588: if (p[i].sz > 0) {
589: assert(p[i].value);
1.2 kristaps 590: /* LINTED */
591: for (j = 0; j < (int)p[i].sz; j++)
1.1 kristaps 592: free(p[i].value[j]);
1.19 kristaps 593: free(p[i].value);
1.1 kristaps 594: }
595: free(p);
596: }
597:
598:
599: static void
600: mdoc_elem_free(struct mdoc_elem *p)
601: {
602:
603: argfree(p->argc, p->argv);
604: }
605:
606:
607: static void
608: mdoc_block_free(struct mdoc_block *p)
609: {
610:
611: argfree(p->argc, p->argv);
612: }
613:
614:
615: static void
616: mdoc_text_free(struct mdoc_text *p)
617: {
618:
619: if (p->string)
620: free(p->string);
621: }
622:
623:
624: void
625: mdoc_node_free(struct mdoc_node *p)
626: {
627:
628: switch (p->type) {
629: case (MDOC_TEXT):
630: mdoc_text_free(&p->data.text);
631: break;
632: case (MDOC_ELEM):
633: mdoc_elem_free(&p->data.elem);
634: break;
635: case (MDOC_BLOCK):
636: mdoc_block_free(&p->data.block);
637: break;
638: default:
639: break;
640: }
641:
642: free(p);
643: }
644:
645:
646: static void
647: mdoc_node_freelist(struct mdoc_node *p)
648: {
649:
650: if (p->child)
651: mdoc_node_freelist(p->child);
652: if (p->next)
653: mdoc_node_freelist(p->next);
654:
655: mdoc_node_free(p);
656: }
657:
658:
659: int
660: mdoc_find(const struct mdoc *mdoc, const char *key)
661: {
662:
1.4 kristaps 663: return(mdoc_tokhash_find(mdoc->htab, key));
1.1 kristaps 664: }
665:
666:
667: static void
668: argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
669: {
1.2 kristaps 670: int i;
1.1 kristaps 671:
672: dst->arg = src->arg;
673: if (0 == (dst->sz = src->sz))
674: return;
675: dst->value = xcalloc(dst->sz, sizeof(char *));
1.2 kristaps 676: for (i = 0; i < (int)dst->sz; i++)
1.1 kristaps 677: dst->value[i] = xstrdup(src->value[i]);
678: }
679:
680:
681: static struct mdoc_arg *
682: argdup(size_t argsz, const struct mdoc_arg *args)
683: {
684: struct mdoc_arg *pp;
1.2 kristaps 685: int i;
1.1 kristaps 686:
687: if (0 == argsz)
688: return(NULL);
689:
690: pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
1.2 kristaps 691: for (i = 0; i < (int)argsz; i++)
1.1 kristaps 692: argcpy(&pp[i], &args[i]);
693:
694: return(pp);
695: }
696:
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