Annotation of mandoc/mdoc.c, Revision 1.18
1.18 ! kristaps 1: /* $Id: mdoc.c,v 1.17 2009/01/05 16:11:14 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 */
1.6 kristaps 94: { macro_scoped_line, 0 }, /* D1 */
95: { macro_scoped_line, 0 }, /* 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 */
1.17 kristaps 100: { macro_scoped, MDOC_NESTED }, /* It */
1.1 kristaps 101: { macro_text, MDOC_CALLABLE }, /* Ad */
1.14 kristaps 102: { macro_constant, 0 }, /* An */
1.1 kristaps 103: { macro_text, MDOC_CALLABLE }, /* Ar */
1.12 kristaps 104: { macro_constant, MDOC_QUOTABLE }, /* Cd */
1.1 kristaps 105: { macro_text, MDOC_CALLABLE }, /* Cm */
106: { macro_text, MDOC_CALLABLE }, /* Dv */
107: { macro_text, MDOC_CALLABLE }, /* Er */
108: { macro_text, MDOC_CALLABLE }, /* Ev */
1.13 kristaps 109: { macro_constant, 0 }, /* Ex */
1.18 ! kristaps 110: { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE }, /* Fa */
1.13 kristaps 111: { macro_constant, 0 }, /* Fd */
1.1 kristaps 112: { macro_text, MDOC_CALLABLE }, /* Fl */
1.12 kristaps 113: { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE }, /* Fn */
1.1 kristaps 114: { macro_text, 0 }, /* Ft */
115: { macro_text, MDOC_CALLABLE }, /* Ic */
1.13 kristaps 116: { macro_constant, 0 }, /* In */
1.1 kristaps 117: { macro_text, MDOC_CALLABLE }, /* Li */
1.10 kristaps 118: { macro_constant, 0 }, /* Nd */
1.17 kristaps 119: { macro_text, MDOC_CALLABLE }, /* Nm */
1.13 kristaps 120: { macro_scoped_line, MDOC_CALLABLE }, /* Op */
121: { macro_obsolete, 0 }, /* Ot */
1.1 kristaps 122: { macro_text, MDOC_CALLABLE }, /* Pa */
1.13 kristaps 123: { macro_constant, 0 }, /* Rv */
124: { macro_constant, 0 }, /* St */
1.1 kristaps 125: { macro_text, MDOC_CALLABLE }, /* Va */
126: { macro_text, MDOC_CALLABLE }, /* Vt */
1.13 kristaps 127: { macro_text, MDOC_CALLABLE }, /* Xr */
128: { macro_constant, MDOC_QUOTABLE }, /* %A */
129: { macro_constant, MDOC_QUOTABLE }, /* %B */
130: { macro_constant, MDOC_QUOTABLE }, /* %D */
131: { macro_constant, MDOC_QUOTABLE }, /* %I */
132: { macro_constant, MDOC_QUOTABLE }, /* %J */
133: { macro_constant, MDOC_QUOTABLE }, /* %N */
134: { macro_constant, MDOC_QUOTABLE }, /* %O */
135: { macro_constant, MDOC_QUOTABLE }, /* %P */
136: { macro_constant, MDOC_QUOTABLE }, /* %R */
137: { macro_constant, MDOC_QUOTABLE }, /* %T */
138: { macro_constant, MDOC_QUOTABLE }, /* %V */
1.17 kristaps 139: { macro_close_explicit, MDOC_CALLABLE }, /* Ac */
140: { macro_constant_scoped, MDOC_CALLABLE }, /* Ao */
1.13 kristaps 141: { macro_scoped_line, MDOC_CALLABLE }, /* Aq */
1.9 kristaps 142: { macro_constant, 0 }, /* At */
1.17 kristaps 143: { macro_close_explicit, MDOC_CALLABLE }, /* Bc */
1.16 kristaps 144: { macro_scoped, MDOC_EXPLICIT }, /* Bf */
1.17 kristaps 145: { macro_constant_scoped, MDOC_CALLABLE }, /* Bo */
1.13 kristaps 146: { macro_scoped_line, MDOC_CALLABLE }, /* Bq */
1.8 kristaps 147: { macro_constant_delimited, 0 }, /* Bsx */
148: { macro_constant_delimited, 0 }, /* Bx */
1.13 kristaps 149: { macro_constant, 0 }, /* Db */
1.17 kristaps 150: { macro_close_explicit, MDOC_CALLABLE }, /* Dc */
151: { macro_constant_scoped, MDOC_CALLABLE }, /* Do */
1.13 kristaps 152: { macro_scoped_line, MDOC_CALLABLE }, /* Dq */
1.17 kristaps 153: { macro_close_explicit, MDOC_CALLABLE }, /* Ec */
1.14 kristaps 154: { macro_close_explicit, 0 }, /* Ef */
1.1 kristaps 155: { macro_text, MDOC_CALLABLE }, /* Em */
1.17 kristaps 156: { macro_constant_scoped, MDOC_CALLABLE }, /* Eo */
1.8 kristaps 157: { macro_constant_delimited, 0 }, /* Fx */
1.1 kristaps 158: { macro_text, 0 }, /* Ms */
1.13 kristaps 159: { macro_constant_delimited, MDOC_CALLABLE }, /* No */
160: { macro_constant_delimited, MDOC_CALLABLE }, /* Ns */
1.8 kristaps 161: { macro_constant_delimited, 0 }, /* Nx */
162: { macro_constant_delimited, 0 }, /* Ox */
1.17 kristaps 163: { macro_close_explicit, MDOC_CALLABLE }, /* Pc */
1.14 kristaps 164: { macro_constant, 0 }, /* Pf */
1.17 kristaps 165: { macro_constant_scoped, MDOC_CALLABLE }, /* Po */
1.13 kristaps 166: { macro_scoped_line, MDOC_CALLABLE }, /* Pq */
1.17 kristaps 167: { macro_close_explicit, MDOC_CALLABLE }, /* Qc */
1.13 kristaps 168: { macro_scoped_line, MDOC_CALLABLE }, /* Ql */
1.17 kristaps 169: { macro_constant_scoped, MDOC_CALLABLE }, /* Qo */
1.13 kristaps 170: { macro_scoped_line, MDOC_CALLABLE }, /* Qq */
1.18 ! kristaps 171: { macro_close_explicit, 0 }, /* Re */
1.13 kristaps 172: { macro_scoped, MDOC_EXPLICIT }, /* Rs */
1.17 kristaps 173: { macro_close_explicit, MDOC_CALLABLE }, /* Sc */
174: { macro_constant_scoped, MDOC_CALLABLE }, /* So */
1.13 kristaps 175: { macro_scoped_line, MDOC_CALLABLE }, /* Sq */
176: { macro_constant, 0 }, /* Sm */
1.10 kristaps 177: { macro_text, MDOC_CALLABLE }, /* Sx */
178: { macro_text, MDOC_CALLABLE }, /* Sy */
1.1 kristaps 179: { macro_text, MDOC_CALLABLE }, /* Tn */
1.8 kristaps 180: { macro_constant_delimited, 0 }, /* Ux */
1.17 kristaps 181: { macro_close_explicit, MDOC_CALLABLE }, /* Xc */
182: { macro_constant_scoped, MDOC_CALLABLE }, /* Xo */
183: { macro_scoped, MDOC_EXPLICIT }, /* Fo */ /* XXX - supposed to be (but isn't) callable. */
184: { macro_close_explicit, 0 }, /* Fc */ /* XXX - supposed to be (but isn't) callable. */
185: { macro_constant_scoped, MDOC_CALLABLE }, /* Oo */
186: { macro_close_explicit, MDOC_CALLABLE }, /* Oc */
187: { macro_scoped, MDOC_EXPLICIT }, /* Bk */
188: { macro_close_explicit, 0 }, /* Ek */
1.9 kristaps 189: { macro_constant, 0 }, /* Bt */
1.10 kristaps 190: { macro_constant, 0 }, /* Hf */
1.12 kristaps 191: { macro_obsolete, 0 }, /* Fr */
1.9 kristaps 192: { macro_constant, 0 }, /* Ud */
1.1 kristaps 193: };
194:
195: const char * const *mdoc_macronames = __mdoc_macronames;
196: const char * const *mdoc_argnames = __mdoc_argnames;
197: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
198:
199:
200: static struct mdoc_arg *argdup(size_t, const struct mdoc_arg *);
201: static void argfree(size_t, struct mdoc_arg *);
202: static void argcpy(struct mdoc_arg *,
203: const struct mdoc_arg *);
204:
205: static void mdoc_node_freelist(struct mdoc_node *);
206: static void mdoc_node_append(struct mdoc *, int,
207: struct mdoc_node *);
208: static void mdoc_elem_free(struct mdoc_elem *);
209: static void mdoc_text_free(struct mdoc_text *);
210:
211:
212: const struct mdoc_node *
213: mdoc_result(struct mdoc *mdoc)
214: {
215:
216: return(mdoc->first);
217: }
218:
219:
220: void
221: mdoc_free(struct mdoc *mdoc)
222: {
223:
224: if (mdoc->first)
225: mdoc_node_freelist(mdoc->first);
226: if (mdoc->htab)
1.4 kristaps 227: mdoc_tokhash_free(mdoc->htab);
1.1 kristaps 228:
229: free(mdoc);
230: }
231:
232:
233: struct mdoc *
234: mdoc_alloc(void *data, const struct mdoc_cb *cb)
235: {
236: struct mdoc *p;
237:
238: p = xcalloc(1, sizeof(struct mdoc));
239:
240: p->data = data;
241: (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
242:
1.4 kristaps 243: p->htab = mdoc_tokhash_alloc();
1.1 kristaps 244: return(p);
245: }
246:
247:
248: int
249: mdoc_parseln(struct mdoc *mdoc, char *buf)
250: {
251: int c, i;
252: char tmp[5];
253:
1.5 kristaps 254: if ('.' != *buf) {
1.18 ! kristaps 255: if (SEC_PROLOGUE == mdoc->sec_lastn)
! 256: return(mdoc_err(mdoc, -1, 0, ERR_SYNTAX_NOTEXT));
1.5 kristaps 257: mdoc_word_alloc(mdoc, 0, buf);
1.13 kristaps 258: mdoc->next = MDOC_NEXT_SIBLING;
1.5 kristaps 259: return(1);
1.1 kristaps 260: }
261:
262: if (buf[1] && '\\' == buf[1])
263: if (buf[2] && '\"' == buf[2])
264: return(1);
265:
266: i = 1;
267: while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
268: i++;
269:
270: if (i == (int)sizeof(tmp))
271: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
272: else if (i <= 2)
273: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
274:
275: i--;
276:
1.2 kristaps 277: (void)memcpy(tmp, buf + 1, (size_t)i);
1.1 kristaps 278: tmp[i++] = 0;
279:
280: if (MDOC_MAX == (c = mdoc_find(mdoc, tmp)))
281: return(mdoc_err(mdoc, c, 1, ERR_MACRO_NOTSUP));
282:
283: while (buf[i] && isspace(buf[i]))
284: i++;
285:
1.3 kristaps 286: return(mdoc_macro(mdoc, c, 1, &i, buf));
1.1 kristaps 287: }
288:
289:
290: void
291: mdoc_msg(struct mdoc *mdoc, int pos, const char *fmt, ...)
292: {
293: va_list ap;
294: char buf[256];
295:
296: if (NULL == mdoc->cb.mdoc_msg)
297: return;
298:
299: va_start(ap, fmt);
300: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
301: va_end(ap);
302:
303: (*mdoc->cb.mdoc_msg)(mdoc->data, pos, buf);
304: }
305:
306:
307: int
308: mdoc_err(struct mdoc *mdoc, int tok, int pos, enum mdoc_err type)
309: {
310:
311: if (NULL == mdoc->cb.mdoc_err)
312: return(0);
313: return((*mdoc->cb.mdoc_err)(mdoc->data, tok, pos, type));
314: }
315:
316:
317: int
318: mdoc_warn(struct mdoc *mdoc, int tok, int pos, enum mdoc_warn type)
319: {
320:
321: if (NULL == mdoc->cb.mdoc_warn)
322: return(0);
323: return((*mdoc->cb.mdoc_warn)(mdoc->data, tok, pos, type));
324: }
325:
326:
327: int
328: mdoc_macro(struct mdoc *mdoc, int tok, int ppos, int *pos, char *buf)
329: {
330:
1.17 kristaps 331: if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.13 kristaps 332: SEC_PROLOGUE == mdoc->sec_lastn)
333: return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
334:
1.1 kristaps 335: if (NULL == (mdoc_macros[tok].fp)) {
336: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTSUP);
337: return(0);
1.3 kristaps 338: }
339:
340: if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.1 kristaps 341: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTCALL);
342: return(0);
343: }
344:
345: return((*mdoc_macros[tok].fp)(mdoc, tok, ppos, pos, buf));
346: }
347:
348:
349: static void
350: mdoc_node_append(struct mdoc *mdoc, int pos, struct mdoc_node *p)
351: {
352: const char *nn, *on, *nt, *ot, *act;
353:
354: switch (p->type) {
355: case (MDOC_TEXT):
1.5 kristaps 356: nn = p->data.text.string;
1.1 kristaps 357: nt = "text";
358: break;
359: case (MDOC_BODY):
360: nn = mdoc_macronames[p->data.body.tok];
361: nt = "body";
362: break;
363: case (MDOC_ELEM):
364: nn = mdoc_macronames[p->data.elem.tok];
365: nt = "elem";
366: break;
367: case (MDOC_HEAD):
368: nn = mdoc_macronames[p->data.head.tok];
369: nt = "head";
370: break;
1.17 kristaps 371: case (MDOC_TAIL):
372: nn = mdoc_macronames[p->data.tail.tok];
373: nt = "tail";
374: break;
1.1 kristaps 375: case (MDOC_BLOCK):
376: nn = mdoc_macronames[p->data.block.tok];
377: nt = "block";
378: break;
1.2 kristaps 379: default:
380: abort();
381: /* NOTREACHED */
1.1 kristaps 382: }
383:
384: if (NULL == mdoc->first) {
385: assert(NULL == mdoc->last);
386: mdoc->first = p;
387: mdoc->last = p;
388: mdoc_msg(mdoc, pos, "parse: root %s `%s'", nt, nn);
389: return;
390: }
391:
392: switch (mdoc->last->type) {
393: case (MDOC_TEXT):
394: on = "<text>";
395: ot = "text";
396: break;
397: case (MDOC_BODY):
398: on = mdoc_macronames[mdoc->last->data.body.tok];
399: ot = "body";
400: break;
401: case (MDOC_ELEM):
402: on = mdoc_macronames[mdoc->last->data.elem.tok];
403: ot = "elem";
404: break;
405: case (MDOC_HEAD):
406: on = mdoc_macronames[mdoc->last->data.head.tok];
407: ot = "head";
408: break;
1.17 kristaps 409: case (MDOC_TAIL):
410: on = mdoc_macronames[mdoc->last->data.tail.tok];
411: ot = "tail";
412: break;
1.1 kristaps 413: case (MDOC_BLOCK):
414: on = mdoc_macronames[mdoc->last->data.block.tok];
415: ot = "block";
416: break;
1.2 kristaps 417: default:
418: abort();
419: /* NOTREACHED */
1.1 kristaps 420: }
421:
1.13 kristaps 422: switch (mdoc->next) {
423: case (MDOC_NEXT_SIBLING):
1.6 kristaps 424: mdoc->last->next = p;
425: p->prev = mdoc->last;
1.13 kristaps 426: p->parent = mdoc->last->parent;
1.6 kristaps 427: act = "sibling";
1.1 kristaps 428: break;
1.13 kristaps 429: case (MDOC_NEXT_CHILD):
430: mdoc->last->child = p;
1.1 kristaps 431: p->parent = mdoc->last;
432: act = "child";
433: break;
434: default:
1.13 kristaps 435: abort();
436: /* NOTREACHED */
1.1 kristaps 437: }
438:
1.13 kristaps 439: mdoc_msg(mdoc, pos, "parse: %s `%s' %s of %s `%s'",
1.1 kristaps 440: nt, nn, act, ot, on);
1.13 kristaps 441:
1.1 kristaps 442: mdoc->last = p;
443: }
444:
445:
446: void
1.17 kristaps 447: mdoc_tail_alloc(struct mdoc *mdoc, int pos, int tok)
448: {
449: struct mdoc_node *p;
450:
451: assert(mdoc->first);
452: assert(mdoc->last);
453:
454: p = xcalloc(1, sizeof(struct mdoc_node));
455:
456: p->type = MDOC_TAIL;
457: p->data.tail.tok = tok;
458:
459: mdoc_node_append(mdoc, pos, p);
460: }
461:
462:
463: void
1.13 kristaps 464: mdoc_head_alloc(struct mdoc *mdoc, int pos, int tok)
1.1 kristaps 465: {
466: struct mdoc_node *p;
467:
468: assert(mdoc->first);
469: assert(mdoc->last);
470:
471: p = xcalloc(1, sizeof(struct mdoc_node));
1.13 kristaps 472:
1.1 kristaps 473: p->type = MDOC_HEAD;
474: p->data.head.tok = tok;
475:
476: mdoc_node_append(mdoc, pos, p);
477: }
478:
479:
480: void
481: mdoc_body_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_BODY;
491: p->data.body.tok = tok;
492:
493: mdoc_node_append(mdoc, pos, p);
494: }
495:
496:
497: void
498: mdoc_block_alloc(struct mdoc *mdoc, int pos, int tok,
499: size_t argsz, const struct mdoc_arg *args)
500: {
501: struct mdoc_node *p;
502:
503: p = xcalloc(1, sizeof(struct mdoc_node));
504:
505: p->type = MDOC_BLOCK;
506: p->data.block.tok = tok;
507: p->data.block.argc = argsz;
508: p->data.block.argv = argdup(argsz, args);
509:
510: mdoc_node_append(mdoc, pos, p);
511: }
512:
513:
514: void
515: mdoc_elem_alloc(struct mdoc *mdoc, int pos, int tok,
1.15 kristaps 516: size_t argsz, const struct mdoc_arg *args)
1.1 kristaps 517: {
518: struct mdoc_node *p;
519:
520: p = xcalloc(1, sizeof(struct mdoc_node));
521: p->type = MDOC_ELEM;
522: p->data.elem.tok = tok;
523: p->data.elem.argc = argsz;
524: p->data.elem.argv = argdup(argsz, args);
525:
526: mdoc_node_append(mdoc, pos, p);
527: }
528:
529:
530: void
531: mdoc_word_alloc(struct mdoc *mdoc, int pos, const char *word)
532: {
533: struct mdoc_node *p;
534:
535: p = xcalloc(1, sizeof(struct mdoc_node));
536: p->type = MDOC_TEXT;
537: p->data.text.string = xstrdup(word);
538:
539: mdoc_node_append(mdoc, pos, p);
540: }
541:
542:
543: static void
544: argfree(size_t sz, struct mdoc_arg *p)
545: {
1.2 kristaps 546: int i, j;
1.1 kristaps 547:
548: if (0 == sz)
549: return;
550:
551: assert(p);
1.2 kristaps 552: /* LINTED */
553: for (i = 0; i < (int)sz; i++)
1.1 kristaps 554: if (p[i].sz > 0) {
555: assert(p[i].value);
1.2 kristaps 556: /* LINTED */
557: for (j = 0; j < (int)p[i].sz; j++)
1.1 kristaps 558: free(p[i].value[j]);
559: }
560: free(p);
561: }
562:
563:
564: static void
565: mdoc_elem_free(struct mdoc_elem *p)
566: {
567:
568: argfree(p->argc, p->argv);
569: }
570:
571:
572: static void
573: mdoc_block_free(struct mdoc_block *p)
574: {
575:
576: argfree(p->argc, p->argv);
577: }
578:
579:
580: static void
581: mdoc_text_free(struct mdoc_text *p)
582: {
583:
584: if (p->string)
585: free(p->string);
586: }
587:
588:
589: void
590: mdoc_node_free(struct mdoc_node *p)
591: {
592:
593: switch (p->type) {
594: case (MDOC_TEXT):
595: mdoc_text_free(&p->data.text);
596: break;
597: case (MDOC_ELEM):
598: mdoc_elem_free(&p->data.elem);
599: break;
600: case (MDOC_BLOCK):
601: mdoc_block_free(&p->data.block);
602: break;
603: default:
604: break;
605: }
606:
607: free(p);
608: }
609:
610:
611: static void
612: mdoc_node_freelist(struct mdoc_node *p)
613: {
614:
615: if (p->child)
616: mdoc_node_freelist(p->child);
617: if (p->next)
618: mdoc_node_freelist(p->next);
619:
620: mdoc_node_free(p);
621: }
622:
623:
624: int
625: mdoc_find(const struct mdoc *mdoc, const char *key)
626: {
627:
1.4 kristaps 628: return(mdoc_tokhash_find(mdoc->htab, key));
1.1 kristaps 629: }
630:
631:
632: static void
633: argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
634: {
1.2 kristaps 635: int i;
1.1 kristaps 636:
637: dst->arg = src->arg;
638: if (0 == (dst->sz = src->sz))
639: return;
640: dst->value = xcalloc(dst->sz, sizeof(char *));
1.2 kristaps 641: for (i = 0; i < (int)dst->sz; i++)
1.1 kristaps 642: dst->value[i] = xstrdup(src->value[i]);
643: }
644:
645:
646: static struct mdoc_arg *
647: argdup(size_t argsz, const struct mdoc_arg *args)
648: {
649: struct mdoc_arg *pp;
1.2 kristaps 650: int i;
1.1 kristaps 651:
652: if (0 == argsz)
653: return(NULL);
654:
655: pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
1.2 kristaps 656: for (i = 0; i < (int)argsz; i++)
1.1 kristaps 657: argcpy(&pp[i], &args[i]);
658:
659: return(pp);
660: }
661:
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