Annotation of mandoc/mdoc.c, Revision 1.19
1.19 ! kristaps 1: /* $Id: mdoc.c,v 1.18 2009/01/05 17:57:08 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
252: mdoc_parseln(struct mdoc *mdoc, char *buf)
253: {
254: int c, i;
255: char tmp[5];
256:
1.5 kristaps 257: if ('.' != *buf) {
1.18 kristaps 258: if (SEC_PROLOGUE == mdoc->sec_lastn)
259: return(mdoc_err(mdoc, -1, 0, ERR_SYNTAX_NOTEXT));
1.5 kristaps 260: mdoc_word_alloc(mdoc, 0, buf);
1.13 kristaps 261: mdoc->next = MDOC_NEXT_SIBLING;
1.5 kristaps 262: return(1);
1.1 kristaps 263: }
264:
265: if (buf[1] && '\\' == buf[1])
266: if (buf[2] && '\"' == buf[2])
267: return(1);
268:
269: i = 1;
270: while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
271: i++;
272:
273: if (i == (int)sizeof(tmp))
274: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
275: else if (i <= 2)
276: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
277:
278: i--;
279:
1.2 kristaps 280: (void)memcpy(tmp, buf + 1, (size_t)i);
1.1 kristaps 281: tmp[i++] = 0;
282:
283: if (MDOC_MAX == (c = mdoc_find(mdoc, tmp)))
284: return(mdoc_err(mdoc, c, 1, ERR_MACRO_NOTSUP));
285:
286: while (buf[i] && isspace(buf[i]))
287: i++;
288:
1.3 kristaps 289: return(mdoc_macro(mdoc, c, 1, &i, buf));
1.1 kristaps 290: }
291:
292:
293: void
294: mdoc_msg(struct mdoc *mdoc, int pos, const char *fmt, ...)
295: {
296: va_list ap;
297: char buf[256];
298:
299: if (NULL == mdoc->cb.mdoc_msg)
300: return;
301:
302: va_start(ap, fmt);
303: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
304: va_end(ap);
305:
306: (*mdoc->cb.mdoc_msg)(mdoc->data, pos, buf);
307: }
308:
309:
310: int
311: mdoc_err(struct mdoc *mdoc, int tok, int pos, enum mdoc_err type)
312: {
313:
314: if (NULL == mdoc->cb.mdoc_err)
315: return(0);
316: return((*mdoc->cb.mdoc_err)(mdoc->data, tok, pos, type));
317: }
318:
319:
320: int
321: mdoc_warn(struct mdoc *mdoc, int tok, int pos, enum mdoc_warn type)
322: {
323:
324: if (NULL == mdoc->cb.mdoc_warn)
325: return(0);
326: return((*mdoc->cb.mdoc_warn)(mdoc->data, tok, pos, type));
327: }
328:
329:
330: int
331: mdoc_macro(struct mdoc *mdoc, int tok, int ppos, int *pos, char *buf)
332: {
333:
1.17 kristaps 334: if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.13 kristaps 335: SEC_PROLOGUE == mdoc->sec_lastn)
336: return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
337:
1.1 kristaps 338: if (NULL == (mdoc_macros[tok].fp)) {
339: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTSUP);
340: return(0);
1.3 kristaps 341: }
342:
343: if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.1 kristaps 344: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTCALL);
345: return(0);
346: }
347:
348: return((*mdoc_macros[tok].fp)(mdoc, tok, ppos, pos, buf));
349: }
350:
351:
352: static void
353: mdoc_node_append(struct mdoc *mdoc, int pos, struct mdoc_node *p)
354: {
355: const char *nn, *on, *nt, *ot, *act;
356:
357: switch (p->type) {
358: case (MDOC_TEXT):
1.5 kristaps 359: nn = p->data.text.string;
1.1 kristaps 360: nt = "text";
361: break;
362: case (MDOC_BODY):
363: nn = mdoc_macronames[p->data.body.tok];
364: nt = "body";
365: break;
366: case (MDOC_ELEM):
367: nn = mdoc_macronames[p->data.elem.tok];
368: nt = "elem";
369: break;
370: case (MDOC_HEAD):
371: nn = mdoc_macronames[p->data.head.tok];
372: nt = "head";
373: break;
1.17 kristaps 374: case (MDOC_TAIL):
375: nn = mdoc_macronames[p->data.tail.tok];
376: nt = "tail";
377: break;
1.1 kristaps 378: case (MDOC_BLOCK):
379: nn = mdoc_macronames[p->data.block.tok];
380: nt = "block";
381: break;
1.2 kristaps 382: default:
383: abort();
384: /* NOTREACHED */
1.1 kristaps 385: }
386:
387: if (NULL == mdoc->first) {
388: assert(NULL == mdoc->last);
389: mdoc->first = p;
390: mdoc->last = p;
391: mdoc_msg(mdoc, pos, "parse: root %s `%s'", nt, nn);
392: return;
393: }
394:
395: switch (mdoc->last->type) {
396: case (MDOC_TEXT):
397: on = "<text>";
398: ot = "text";
399: break;
400: case (MDOC_BODY):
401: on = mdoc_macronames[mdoc->last->data.body.tok];
402: ot = "body";
403: break;
404: case (MDOC_ELEM):
405: on = mdoc_macronames[mdoc->last->data.elem.tok];
406: ot = "elem";
407: break;
408: case (MDOC_HEAD):
409: on = mdoc_macronames[mdoc->last->data.head.tok];
410: ot = "head";
411: break;
1.17 kristaps 412: case (MDOC_TAIL):
413: on = mdoc_macronames[mdoc->last->data.tail.tok];
414: ot = "tail";
415: break;
1.1 kristaps 416: case (MDOC_BLOCK):
417: on = mdoc_macronames[mdoc->last->data.block.tok];
418: ot = "block";
419: break;
1.2 kristaps 420: default:
421: abort();
422: /* NOTREACHED */
1.1 kristaps 423: }
424:
1.13 kristaps 425: switch (mdoc->next) {
426: case (MDOC_NEXT_SIBLING):
1.6 kristaps 427: mdoc->last->next = p;
428: p->prev = mdoc->last;
1.13 kristaps 429: p->parent = mdoc->last->parent;
1.6 kristaps 430: act = "sibling";
1.1 kristaps 431: break;
1.13 kristaps 432: case (MDOC_NEXT_CHILD):
433: mdoc->last->child = p;
1.1 kristaps 434: p->parent = mdoc->last;
435: act = "child";
436: break;
437: default:
1.13 kristaps 438: abort();
439: /* NOTREACHED */
1.1 kristaps 440: }
441:
1.13 kristaps 442: mdoc_msg(mdoc, pos, "parse: %s `%s' %s of %s `%s'",
1.1 kristaps 443: nt, nn, act, ot, on);
1.13 kristaps 444:
1.1 kristaps 445: mdoc->last = p;
446: }
447:
448:
449: void
1.17 kristaps 450: mdoc_tail_alloc(struct mdoc *mdoc, int pos, int tok)
451: {
452: struct mdoc_node *p;
453:
454: assert(mdoc->first);
455: assert(mdoc->last);
456:
457: p = xcalloc(1, sizeof(struct mdoc_node));
458:
459: p->type = MDOC_TAIL;
460: p->data.tail.tok = tok;
461:
462: mdoc_node_append(mdoc, pos, p);
463: }
464:
465:
466: void
1.13 kristaps 467: mdoc_head_alloc(struct mdoc *mdoc, int pos, int tok)
1.1 kristaps 468: {
469: struct mdoc_node *p;
470:
471: assert(mdoc->first);
472: assert(mdoc->last);
473:
474: p = xcalloc(1, sizeof(struct mdoc_node));
1.13 kristaps 475:
1.1 kristaps 476: p->type = MDOC_HEAD;
477: p->data.head.tok = tok;
478:
479: mdoc_node_append(mdoc, pos, p);
480: }
481:
482:
483: void
484: mdoc_body_alloc(struct mdoc *mdoc, int pos, int tok)
485: {
486: struct mdoc_node *p;
487:
488: assert(mdoc->first);
489: assert(mdoc->last);
490:
491: p = xcalloc(1, sizeof(struct mdoc_node));
492:
493: p->type = MDOC_BODY;
494: p->data.body.tok = tok;
495:
496: mdoc_node_append(mdoc, pos, p);
497: }
498:
499:
500: void
501: mdoc_block_alloc(struct mdoc *mdoc, int pos, int tok,
502: size_t argsz, const struct mdoc_arg *args)
503: {
504: struct mdoc_node *p;
505:
506: p = xcalloc(1, sizeof(struct mdoc_node));
507:
508: p->type = MDOC_BLOCK;
509: p->data.block.tok = tok;
510: p->data.block.argc = argsz;
511: p->data.block.argv = argdup(argsz, args);
512:
513: mdoc_node_append(mdoc, pos, p);
514: }
515:
516:
517: void
518: mdoc_elem_alloc(struct mdoc *mdoc, int pos, int tok,
1.15 kristaps 519: size_t argsz, const struct mdoc_arg *args)
1.1 kristaps 520: {
521: struct mdoc_node *p;
522:
523: p = xcalloc(1, sizeof(struct mdoc_node));
524: p->type = MDOC_ELEM;
525: p->data.elem.tok = tok;
526: p->data.elem.argc = argsz;
527: p->data.elem.argv = argdup(argsz, args);
528:
529: mdoc_node_append(mdoc, pos, p);
530: }
531:
532:
533: void
534: mdoc_word_alloc(struct mdoc *mdoc, int pos, const char *word)
535: {
536: struct mdoc_node *p;
537:
538: p = xcalloc(1, sizeof(struct mdoc_node));
539: p->type = MDOC_TEXT;
540: p->data.text.string = xstrdup(word);
541:
542: mdoc_node_append(mdoc, pos, p);
543: }
544:
545:
546: static void
547: argfree(size_t sz, struct mdoc_arg *p)
548: {
1.2 kristaps 549: int i, j;
1.1 kristaps 550:
551: if (0 == sz)
552: return;
553:
554: assert(p);
1.2 kristaps 555: /* LINTED */
556: for (i = 0; i < (int)sz; i++)
1.1 kristaps 557: if (p[i].sz > 0) {
558: assert(p[i].value);
1.2 kristaps 559: /* LINTED */
560: for (j = 0; j < (int)p[i].sz; j++)
1.1 kristaps 561: free(p[i].value[j]);
1.19 ! kristaps 562: free(p[i].value);
1.1 kristaps 563: }
564: free(p);
565: }
566:
567:
568: static void
569: mdoc_elem_free(struct mdoc_elem *p)
570: {
571:
572: argfree(p->argc, p->argv);
573: }
574:
575:
576: static void
577: mdoc_block_free(struct mdoc_block *p)
578: {
579:
580: argfree(p->argc, p->argv);
581: }
582:
583:
584: static void
585: mdoc_text_free(struct mdoc_text *p)
586: {
587:
588: if (p->string)
589: free(p->string);
590: }
591:
592:
593: void
594: mdoc_node_free(struct mdoc_node *p)
595: {
596:
597: switch (p->type) {
598: case (MDOC_TEXT):
599: mdoc_text_free(&p->data.text);
600: break;
601: case (MDOC_ELEM):
602: mdoc_elem_free(&p->data.elem);
603: break;
604: case (MDOC_BLOCK):
605: mdoc_block_free(&p->data.block);
606: break;
607: default:
608: break;
609: }
610:
611: free(p);
612: }
613:
614:
615: static void
616: mdoc_node_freelist(struct mdoc_node *p)
617: {
618:
619: if (p->child)
620: mdoc_node_freelist(p->child);
621: if (p->next)
622: mdoc_node_freelist(p->next);
623:
624: mdoc_node_free(p);
625: }
626:
627:
628: int
629: mdoc_find(const struct mdoc *mdoc, const char *key)
630: {
631:
1.4 kristaps 632: return(mdoc_tokhash_find(mdoc->htab, key));
1.1 kristaps 633: }
634:
635:
636: static void
637: argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
638: {
1.2 kristaps 639: int i;
1.1 kristaps 640:
641: dst->arg = src->arg;
642: if (0 == (dst->sz = src->sz))
643: return;
644: dst->value = xcalloc(dst->sz, sizeof(char *));
1.2 kristaps 645: for (i = 0; i < (int)dst->sz; i++)
1.1 kristaps 646: dst->value[i] = xstrdup(src->value[i]);
647: }
648:
649:
650: static struct mdoc_arg *
651: argdup(size_t argsz, const struct mdoc_arg *args)
652: {
653: struct mdoc_arg *pp;
1.2 kristaps 654: int i;
1.1 kristaps 655:
656: if (0 == argsz)
657: return(NULL);
658:
659: pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
1.2 kristaps 660: for (i = 0; i < (int)argsz; i++)
1.1 kristaps 661: argcpy(&pp[i], &args[i]);
662:
663: return(pp);
664: }
665:
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