Annotation of mandoc/mdoc.c, Revision 1.43
1.43 ! kristaps 1: /* $Id: mdoc.c,v 1.42 2009/01/20 13:49:36 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:
1.41 kristaps 29: /*
30: * Main caller in the libmdoc library. This begins the parsing routine,
31: * handles allocation of data, and so forth. Most of the "work" is done
32: * in macro.c, but this orchestrates who does what, when.
33: */
34:
1.1 kristaps 35: const char *const __mdoc_macronames[MDOC_MAX] = {
36: "\\\"", "Dd", "Dt", "Os",
37: "Sh", "Ss", "Pp", "D1",
38: "Dl", "Bd", "Ed", "Bl",
39: "El", "It", "Ad", "An",
40: "Ar", "Cd", "Cm", "Dv",
41: "Er", "Ev", "Ex", "Fa",
42: "Fd", "Fl", "Fn", "Ft",
43: "Ic", "In", "Li", "Nd",
44: "Nm", "Op", "Ot", "Pa",
45: "Rv", "St", "Va", "Vt",
46: /* LINTED */
47: "Xr", "\%A", "\%B", "\%D",
48: /* LINTED */
49: "\%I", "\%J", "\%N", "\%O",
50: /* LINTED */
51: "\%P", "\%R", "\%T", "\%V",
52: "Ac", "Ao", "Aq", "At",
53: "Bc", "Bf", "Bo", "Bq",
54: "Bsx", "Bx", "Db", "Dc",
55: "Do", "Dq", "Ec", "Ef",
56: "Em", "Eo", "Fx", "Ms",
57: "No", "Ns", "Nx", "Ox",
58: "Pc", "Pf", "Po", "Pq",
59: "Qc", "Ql", "Qo", "Qq",
60: "Re", "Rs", "Sc", "So",
61: "Sq", "Sm", "Sx", "Sy",
62: "Tn", "Ux", "Xc", "Xo",
63: "Fo", "Fc", "Oo", "Oc",
64: "Bk", "Ek", "Bt", "Hf",
65: "Fr", "Ud",
66: };
67:
68: const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
69: "split", "nosplit", "ragged",
70: "unfilled", "literal", "file",
71: "offset", "bullet", "dash",
72: "hyphen", "item", "enum",
73: "tag", "diag", "hang",
74: "ohang", "inset", "column",
75: "width", "compact", "std",
76: "p1003.1-88", "p1003.1-90", "p1003.1-96",
77: "p1003.1-2001", "p1003.1-2004", "p1003.1",
78: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
79: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
80: "p1003.2", "p1387.2", "isoC-90",
81: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
82: "isoC-99", "ansiC", "ansiC-89",
83: "ansiC-99", "ieee754", "iso8802-3",
84: "xpg3", "xpg4", "xpg4.2",
85: "xpg4.3", "xbd5", "xcu5",
86: "xsh5", "xns5", "xns5.2d2.0",
87: "xcurses4.2", "susv2", "susv3",
88: "svid4", "filled", "words",
1.14 kristaps 89: "emphasis", "symbolic",
1.1 kristaps 90: };
91:
1.41 kristaps 92: /* Central table of library: who gets parsed how. */
93:
1.1 kristaps 94: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
95: { NULL, 0 }, /* \" */
1.39 kristaps 96: { macro_constant, MDOC_PROLOGUE }, /* Dd */
97: { macro_constant, MDOC_PROLOGUE }, /* Dt */
98: { macro_constant, MDOC_PROLOGUE }, /* Os */
1.13 kristaps 99: { macro_scoped, 0 }, /* Sh */
100: { macro_scoped, 0 }, /* Ss */
1.5 kristaps 101: { macro_text, 0 }, /* Pp */
1.19 kristaps 102: { macro_scoped_line, MDOC_PARSED }, /* D1 */
103: { macro_scoped_line, MDOC_PARSED }, /* Dl */
1.13 kristaps 104: { macro_scoped, MDOC_EXPLICIT }, /* Bd */
1.29 kristaps 105: { macro_scoped_close, MDOC_EXPLICIT }, /* Ed */
1.13 kristaps 106: { macro_scoped, MDOC_EXPLICIT }, /* Bl */
1.29 kristaps 107: { macro_scoped_close, MDOC_EXPLICIT }, /* El */
1.43 ! kristaps 108: { macro_scoped, MDOC_PARSED }, /* It */
1.19 kristaps 109: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.32 kristaps 110: { macro_text, MDOC_PARSED }, /* An */
1.19 kristaps 111: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.43 ! kristaps 112: { macro_constant, 0 }, /* Cd */
1.19 kristaps 113: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
114: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
115: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
116: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.13 kristaps 117: { macro_constant, 0 }, /* Ex */
1.43 ! kristaps 118: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
1.13 kristaps 119: { macro_constant, 0 }, /* Fd */
1.19 kristaps 120: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.43 ! kristaps 121: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
! 122: { macro_text, MDOC_PARSED }, /* Ft */
1.19 kristaps 123: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.13 kristaps 124: { macro_constant, 0 }, /* In */
1.19 kristaps 125: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.10 kristaps 126: { macro_constant, 0 }, /* Nd */
1.19 kristaps 127: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
128: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.13 kristaps 129: { macro_obsolete, 0 }, /* Ot */
1.19 kristaps 130: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
1.13 kristaps 131: { macro_constant, 0 }, /* Rv */
1.22 kristaps 132: /* XXX - .St supposed to be (but isn't) callable. */
1.19 kristaps 133: { macro_constant_delimited, MDOC_PARSED }, /* St */
134: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
135: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
136: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.43 ! kristaps 137: { macro_constant, 0 }, /* %A */
! 138: { macro_constant, 0 }, /* %B */
! 139: { macro_constant, 0 }, /* %D */
! 140: { macro_constant, 0 }, /* %I */
! 141: { macro_constant, 0 }, /* %J */
! 142: { macro_constant, 0 }, /* %N */
! 143: { macro_constant, 0 }, /* %O */
! 144: { macro_constant, 0 }, /* %P */
! 145: { macro_constant, 0 }, /* %R */
! 146: { macro_constant, 0 }, /* %T */
! 147: { macro_constant, 0 }, /* %V */
1.29 kristaps 148: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
149: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
1.19 kristaps 150: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
1.34 kristaps 151: { macro_constant_delimited, 0 }, /* At */
1.29 kristaps 152: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
1.16 kristaps 153: { macro_scoped, MDOC_EXPLICIT }, /* Bf */
1.29 kristaps 154: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
1.19 kristaps 155: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
156: { macro_constant_delimited, MDOC_PARSED }, /* Bsx */
157: { macro_constant_delimited, MDOC_PARSED }, /* Bx */
1.13 kristaps 158: { macro_constant, 0 }, /* Db */
1.29 kristaps 159: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
160: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
1.19 kristaps 161: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
1.29 kristaps 162: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
163: { macro_scoped_close, MDOC_EXPLICIT }, /* Ef */
1.19 kristaps 164: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
1.29 kristaps 165: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
1.19 kristaps 166: { macro_constant_delimited, MDOC_PARSED }, /* Fx */
167: { macro_text, MDOC_PARSED }, /* Ms */
168: { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* No */
169: { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
170: { macro_constant_delimited, MDOC_PARSED }, /* Nx */
171: { macro_constant_delimited, MDOC_PARSED }, /* Ox */
1.29 kristaps 172: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.32 kristaps 173: { macro_constant_delimited, MDOC_PARSED }, /* Pf */
1.29 kristaps 174: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
1.19 kristaps 175: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
1.29 kristaps 176: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
1.19 kristaps 177: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
1.29 kristaps 178: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
1.19 kristaps 179: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
1.29 kristaps 180: { macro_scoped_close, MDOC_EXPLICIT }, /* Re */
1.13 kristaps 181: { macro_scoped, MDOC_EXPLICIT }, /* Rs */
1.29 kristaps 182: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
183: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
1.19 kristaps 184: { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
1.13 kristaps 185: { macro_constant, 0 }, /* Sm */
1.19 kristaps 186: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
187: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
188: { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
189: { macro_constant_delimited, MDOC_PARSED }, /* Ux */
1.29 kristaps 190: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
191: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.19 kristaps 192: /* XXX - .Fo supposed to be (but isn't) callable. */
1.43 ! kristaps 193: { macro_scoped, MDOC_EXPLICIT }, /* Fo */
1.19 kristaps 194: /* XXX - .Fc supposed to be (but isn't) callable. */
1.43 ! kristaps 195: { macro_scoped_close, MDOC_EXPLICIT }, /* Fc */
1.29 kristaps 196: { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
197: { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
1.17 kristaps 198: { macro_scoped, MDOC_EXPLICIT }, /* Bk */
1.29 kristaps 199: { macro_scoped_close, MDOC_EXPLICIT }, /* Ek */
1.9 kristaps 200: { macro_constant, 0 }, /* Bt */
1.10 kristaps 201: { macro_constant, 0 }, /* Hf */
1.12 kristaps 202: { macro_obsolete, 0 }, /* Fr */
1.9 kristaps 203: { macro_constant, 0 }, /* Ud */
1.1 kristaps 204: };
205:
206: const char * const *mdoc_macronames = __mdoc_macronames;
207: const char * const *mdoc_argnames = __mdoc_argnames;
208: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
209:
210: static struct mdoc_arg *argdup(size_t, const struct mdoc_arg *);
211: static void argfree(size_t, struct mdoc_arg *);
212: static void argcpy(struct mdoc_arg *,
213: const struct mdoc_arg *);
214:
1.23 kristaps 215: static int mdoc_node_append(struct mdoc *,
1.1 kristaps 216: struct mdoc_node *);
217: static void mdoc_elem_free(struct mdoc_elem *);
218: static void mdoc_text_free(struct mdoc_text *);
219:
220:
221: const struct mdoc_node *
1.37 kristaps 222: mdoc_node(struct mdoc *mdoc)
1.1 kristaps 223: {
224:
225: return(mdoc->first);
226: }
227:
228:
1.37 kristaps 229: const struct mdoc_meta *
230: mdoc_meta(struct mdoc *mdoc)
231: {
232:
233: return(&mdoc->meta);
234: }
235:
236:
1.1 kristaps 237: void
1.38 kristaps 238: mdoc_free(struct mdoc *mdoc)
1.34 kristaps 239: {
240:
1.38 kristaps 241: if (mdoc->first)
242: mdoc_node_freelist(mdoc->first);
243: if (mdoc->htab)
244: mdoc_tokhash_free(mdoc->htab);
1.34 kristaps 245: if (mdoc->meta.title)
246: free(mdoc->meta.title);
247: if (mdoc->meta.os)
248: free(mdoc->meta.os);
249: if (mdoc->meta.name)
250: free(mdoc->meta.name);
251:
1.1 kristaps 252: free(mdoc);
253: }
254:
255:
256: struct mdoc *
257: mdoc_alloc(void *data, const struct mdoc_cb *cb)
258: {
259: struct mdoc *p;
260:
261: p = xcalloc(1, sizeof(struct mdoc));
262:
263: p->data = data;
1.33 kristaps 264: if (cb)
265: (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
1.1 kristaps 266:
1.25 kristaps 267: p->last = xcalloc(1, sizeof(struct mdoc_node));
268: p->last->type = MDOC_ROOT;
269: p->first = p->last;
270:
271: p->next = MDOC_NEXT_CHILD;
1.4 kristaps 272: p->htab = mdoc_tokhash_alloc();
1.25 kristaps 273:
1.1 kristaps 274: return(p);
275: }
276:
277:
278: int
1.20 kristaps 279: mdoc_endparse(struct mdoc *mdoc)
280: {
281:
282: if (MDOC_HALT & mdoc->flags)
283: return(0);
284: if (NULL == mdoc->first)
285: return(1);
286:
287: assert(mdoc->last);
288: if ( ! macro_end(mdoc)) {
289: mdoc->flags |= MDOC_HALT;
290: return(0);
291: }
292: return(1);
293: }
294:
295:
296: int
297: mdoc_parseln(struct mdoc *mdoc, int line, char *buf)
1.1 kristaps 298: {
299: int c, i;
300: char tmp[5];
301:
1.20 kristaps 302: if (MDOC_HALT & mdoc->flags)
303: return(0);
304:
1.39 kristaps 305: mdoc->linetok = 0;
306:
1.5 kristaps 307: if ('.' != *buf) {
1.39 kristaps 308: if ( ! (MDOC_BODYPARSE & mdoc->flags))
309: return(mdoc_perr(mdoc, line, 0, "text disallowed"));
310: if ( ! mdoc_word_alloc(mdoc, line, 0, buf))
311: return(0);
312: mdoc->next = MDOC_NEXT_SIBLING;
313: return(1);
1.1 kristaps 314: }
315:
316: if (buf[1] && '\\' == buf[1])
317: if (buf[2] && '\"' == buf[2])
318: return(1);
319:
320: i = 1;
1.42 kristaps 321: while (buf[i] && ! isspace((int)buf[i]) && i < (int)sizeof(tmp))
1.1 kristaps 322: i++;
323:
1.20 kristaps 324: if (i == (int)sizeof(tmp)) {
325: mdoc->flags |= MDOC_HALT;
1.31 kristaps 326: return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20 kristaps 327: } else if (i <= 2) {
328: mdoc->flags |= MDOC_HALT;
1.31 kristaps 329: return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20 kristaps 330: }
1.1 kristaps 331:
332: i--;
333:
1.2 kristaps 334: (void)memcpy(tmp, buf + 1, (size_t)i);
1.1 kristaps 335: tmp[i++] = 0;
336:
1.20 kristaps 337: if (MDOC_MAX == (c = mdoc_find(mdoc, tmp))) {
338: mdoc->flags |= MDOC_HALT;
1.31 kristaps 339: return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20 kristaps 340: }
1.1 kristaps 341:
1.42 kristaps 342: while (buf[i] && isspace((int)buf[i]))
1.1 kristaps 343: i++;
344:
1.21 kristaps 345: if ( ! mdoc_macro(mdoc, c, line, 1, &i, buf)) {
1.20 kristaps 346: mdoc->flags |= MDOC_HALT;
347: return(0);
348: }
349: return(1);
1.1 kristaps 350: }
351:
352:
353: void
1.31 kristaps 354: mdoc_vmsg(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...)
1.1 kristaps 355: {
1.31 kristaps 356: char buf[256];
1.23 kristaps 357: va_list ap;
1.1 kristaps 358:
359: if (NULL == mdoc->cb.mdoc_msg)
360: return;
361:
362: va_start(ap, fmt);
1.31 kristaps 363: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
1.1 kristaps 364: va_end(ap);
1.31 kristaps 365: (*mdoc->cb.mdoc_msg)(mdoc->data, ln, pos, buf);
1.1 kristaps 366: }
367:
368:
369: int
1.31 kristaps 370: mdoc_verr(struct mdoc *mdoc, int ln, int pos,
371: const char *fmt, ...)
1.1 kristaps 372: {
1.31 kristaps 373: char buf[256];
374: va_list ap;
1.1 kristaps 375:
376: if (NULL == mdoc->cb.mdoc_err)
377: return(0);
1.31 kristaps 378:
379: va_start(ap, fmt);
380: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
381: va_end(ap);
382: return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf));
1.1 kristaps 383: }
384:
385:
386: int
1.31 kristaps 387: mdoc_vwarn(struct mdoc *mdoc, int ln, int pos,
388: enum mdoc_warn type, const char *fmt, ...)
1.1 kristaps 389: {
1.31 kristaps 390: char buf[256];
391: va_list ap;
1.1 kristaps 392:
393: if (NULL == mdoc->cb.mdoc_warn)
394: return(0);
1.31 kristaps 395:
396: va_start(ap, fmt);
397: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
398: va_end(ap);
399: return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, type, buf));
1.1 kristaps 400: }
401:
402:
403: int
1.21 kristaps 404: mdoc_macro(struct mdoc *mdoc, int tok,
1.23 kristaps 405: int ln, int ppos, int *pos, char *buf)
1.1 kristaps 406: {
407:
1.31 kristaps 408: assert(mdoc_macros[tok].fp);
409:
1.17 kristaps 410: if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.39 kristaps 411: ! (MDOC_BODYPARSE & mdoc->flags))
412: return(mdoc_perr(mdoc, ln, ppos, "macro disallowed: not in document body"));
1.23 kristaps 413: if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
1.31 kristaps 414: return(mdoc_perr(mdoc, ln, ppos, "macro not callable"));
1.23 kristaps 415: return((*mdoc_macros[tok].fp)(mdoc, tok, ln, ppos, pos, buf));
1.1 kristaps 416: }
417:
418:
1.23 kristaps 419: static int
420: mdoc_node_append(struct mdoc *mdoc, struct mdoc_node *p)
1.1 kristaps 421: {
1.30 kristaps 422: const char *nn, *nt, *on, *ot, *act;
1.1 kristaps 423:
1.25 kristaps 424: assert(mdoc->last);
425: assert(mdoc->first);
426: assert(MDOC_ROOT != p->type);
1.1 kristaps 427:
1.39 kristaps 428: /* See if we exceed the suggest line-max. */
429:
430: switch (p->type) {
431: case (MDOC_TEXT):
432: /* FALLTHROUGH */
433: case (MDOC_ELEM):
434: /* FALLTHROUGH */
435: case (MDOC_BLOCK):
436: mdoc->linetok++;
437: break;
438: default:
439: break;
440: }
441:
1.40 kristaps 442: /* This sort-of works (re-opening of text macros...). */
1.39 kristaps 443: if (mdoc->linetok > MDOC_LINEARG_SOFTMAX)
444: if ( ! mdoc_nwarn(mdoc, p, WARN_COMPAT,
445: "suggested %d tokens per line exceeded (has %d)",
446: MDOC_LINEARG_SOFTMAX, mdoc->linetok))
447: return(0);
448:
1.27 kristaps 449: if (MDOC_TEXT == mdoc->last->type)
450: on = "<text>";
451: else if (MDOC_ROOT == mdoc->last->type)
452: on = "<root>";
453: else
454: on = mdoc_macronames[mdoc->last->tok];
455:
1.30 kristaps 456: if (MDOC_TEXT == p->type)
457: nn = "<text>";
458: else if (MDOC_ROOT == p->type)
459: nn = "<root>";
460: else
461: nn = mdoc_macronames[p->tok];
462:
463: ot = mdoc_type2a(mdoc->last->type);
464: nt = mdoc_type2a(p->type);
1.1 kristaps 465:
1.13 kristaps 466: switch (mdoc->next) {
467: case (MDOC_NEXT_SIBLING):
1.6 kristaps 468: mdoc->last->next = p;
469: p->prev = mdoc->last;
1.13 kristaps 470: p->parent = mdoc->last->parent;
1.6 kristaps 471: act = "sibling";
1.1 kristaps 472: break;
1.13 kristaps 473: case (MDOC_NEXT_CHILD):
474: mdoc->last->child = p;
1.1 kristaps 475: p->parent = mdoc->last;
476: act = "child";
477: break;
478: default:
1.13 kristaps 479: abort();
480: /* NOTREACHED */
1.1 kristaps 481: }
482:
1.23 kristaps 483: if ( ! mdoc_valid_pre(mdoc, p))
484: return(0);
1.27 kristaps 485:
486: switch (p->type) {
487: case (MDOC_HEAD):
488: assert(MDOC_BLOCK == p->parent->type);
489: p->parent->data.block.head = p;
490: break;
491: case (MDOC_TAIL):
492: assert(MDOC_BLOCK == p->parent->type);
493: p->parent->data.block.tail = p;
494: break;
495: case (MDOC_BODY):
496: assert(MDOC_BLOCK == p->parent->type);
497: p->parent->data.block.body = p;
498: break;
499: default:
500: break;
501: }
502:
1.1 kristaps 503: mdoc->last = p;
1.30 kristaps 504: mdoc_msg(mdoc, "parse: %s `%s' %s of %s `%s'",
505: nt, nn, act, ot, on);
1.23 kristaps 506: return(1);
1.1 kristaps 507: }
508:
509:
1.23 kristaps 510: int
1.22 kristaps 511: mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.17 kristaps 512: {
513: struct mdoc_node *p;
514:
515: assert(mdoc->first);
516: assert(mdoc->last);
517:
518: p = xcalloc(1, sizeof(struct mdoc_node));
519:
1.22 kristaps 520: p->line = line;
521: p->pos = pos;
1.17 kristaps 522: p->type = MDOC_TAIL;
1.27 kristaps 523: p->tok = tok;
1.17 kristaps 524:
1.23 kristaps 525: return(mdoc_node_append(mdoc, p));
1.17 kristaps 526: }
527:
528:
1.23 kristaps 529: int
1.22 kristaps 530: mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1 kristaps 531: {
532: struct mdoc_node *p;
533:
534: assert(mdoc->first);
535: assert(mdoc->last);
536:
537: p = xcalloc(1, sizeof(struct mdoc_node));
1.13 kristaps 538:
1.22 kristaps 539: p->line = line;
540: p->pos = pos;
1.1 kristaps 541: p->type = MDOC_HEAD;
1.27 kristaps 542: p->tok = tok;
1.1 kristaps 543:
1.23 kristaps 544: return(mdoc_node_append(mdoc, p));
1.1 kristaps 545: }
546:
547:
1.23 kristaps 548: int
1.22 kristaps 549: mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1 kristaps 550: {
551: struct mdoc_node *p;
552:
553: assert(mdoc->first);
554: assert(mdoc->last);
555:
556: p = xcalloc(1, sizeof(struct mdoc_node));
557:
1.22 kristaps 558: p->line = line;
559: p->pos = pos;
1.1 kristaps 560: p->type = MDOC_BODY;
1.27 kristaps 561: p->tok = tok;
1.1 kristaps 562:
1.23 kristaps 563: return(mdoc_node_append(mdoc, p));
1.1 kristaps 564: }
565:
566:
1.23 kristaps 567: int
1.25 kristaps 568: mdoc_root_alloc(struct mdoc *mdoc)
569: {
570: struct mdoc_node *p;
571:
572: p = xcalloc(1, sizeof(struct mdoc_node));
573:
574: p->type = MDOC_ROOT;
575:
576: return(mdoc_node_append(mdoc, p));
577: }
578:
579:
580: int
1.22 kristaps 581: mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
582: int tok, size_t argsz, const struct mdoc_arg *args)
1.1 kristaps 583: {
584: struct mdoc_node *p;
585:
586: p = xcalloc(1, sizeof(struct mdoc_node));
587:
1.22 kristaps 588: p->pos = pos;
589: p->line = line;
1.1 kristaps 590: p->type = MDOC_BLOCK;
1.27 kristaps 591: p->tok = tok;
1.1 kristaps 592: p->data.block.argc = argsz;
593: p->data.block.argv = argdup(argsz, args);
594:
1.23 kristaps 595: return(mdoc_node_append(mdoc, p));
1.1 kristaps 596: }
597:
598:
1.23 kristaps 599: int
1.22 kristaps 600: mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
601: int tok, size_t argsz, const struct mdoc_arg *args)
1.1 kristaps 602: {
603: struct mdoc_node *p;
604:
605: p = xcalloc(1, sizeof(struct mdoc_node));
1.22 kristaps 606:
607: p->line = line;
608: p->pos = pos;
1.1 kristaps 609: p->type = MDOC_ELEM;
1.27 kristaps 610: p->tok = tok;
1.1 kristaps 611: p->data.elem.argc = argsz;
612: p->data.elem.argv = argdup(argsz, args);
613:
1.23 kristaps 614: return(mdoc_node_append(mdoc, p));
1.1 kristaps 615: }
616:
617:
1.23 kristaps 618: int
1.22 kristaps 619: mdoc_word_alloc(struct mdoc *mdoc,
620: int line, int pos, const char *word)
1.1 kristaps 621: {
622: struct mdoc_node *p;
623:
624: p = xcalloc(1, sizeof(struct mdoc_node));
1.22 kristaps 625: p->line = line;
626: p->pos = pos;
1.1 kristaps 627: p->type = MDOC_TEXT;
628: p->data.text.string = xstrdup(word);
629:
1.23 kristaps 630: return(mdoc_node_append(mdoc, p));
1.1 kristaps 631: }
632:
633:
634: static void
635: argfree(size_t sz, struct mdoc_arg *p)
636: {
1.2 kristaps 637: int i, j;
1.1 kristaps 638:
639: if (0 == sz)
640: return;
641:
642: assert(p);
1.2 kristaps 643: /* LINTED */
644: for (i = 0; i < (int)sz; i++)
1.1 kristaps 645: if (p[i].sz > 0) {
646: assert(p[i].value);
1.2 kristaps 647: /* LINTED */
648: for (j = 0; j < (int)p[i].sz; j++)
1.1 kristaps 649: free(p[i].value[j]);
1.19 kristaps 650: free(p[i].value);
1.1 kristaps 651: }
652: free(p);
653: }
654:
655:
656: static void
657: mdoc_elem_free(struct mdoc_elem *p)
658: {
659:
660: argfree(p->argc, p->argv);
661: }
662:
663:
664: static void
665: mdoc_block_free(struct mdoc_block *p)
666: {
667:
668: argfree(p->argc, p->argv);
669: }
670:
671:
672: static void
673: mdoc_text_free(struct mdoc_text *p)
674: {
675:
676: if (p->string)
677: free(p->string);
678: }
679:
680:
681: void
682: mdoc_node_free(struct mdoc_node *p)
683: {
684:
685: switch (p->type) {
686: case (MDOC_TEXT):
687: mdoc_text_free(&p->data.text);
688: break;
689: case (MDOC_ELEM):
690: mdoc_elem_free(&p->data.elem);
691: break;
692: case (MDOC_BLOCK):
693: mdoc_block_free(&p->data.block);
694: break;
695: default:
696: break;
697: }
698:
699: free(p);
700: }
701:
702:
1.37 kristaps 703: void
1.1 kristaps 704: mdoc_node_freelist(struct mdoc_node *p)
705: {
706:
707: if (p->child)
708: mdoc_node_freelist(p->child);
709: if (p->next)
710: mdoc_node_freelist(p->next);
711:
712: mdoc_node_free(p);
713: }
714:
715:
716: int
717: mdoc_find(const struct mdoc *mdoc, const char *key)
718: {
719:
1.4 kristaps 720: return(mdoc_tokhash_find(mdoc->htab, key));
1.1 kristaps 721: }
722:
723:
724: static void
725: argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
726: {
1.2 kristaps 727: int i;
1.1 kristaps 728:
1.26 kristaps 729: dst->line = src->line;
730: dst->pos = src->pos;
1.1 kristaps 731: dst->arg = src->arg;
732: if (0 == (dst->sz = src->sz))
733: return;
734: dst->value = xcalloc(dst->sz, sizeof(char *));
1.2 kristaps 735: for (i = 0; i < (int)dst->sz; i++)
1.1 kristaps 736: dst->value[i] = xstrdup(src->value[i]);
737: }
738:
739:
740: static struct mdoc_arg *
741: argdup(size_t argsz, const struct mdoc_arg *args)
742: {
743: struct mdoc_arg *pp;
1.2 kristaps 744: int i;
1.1 kristaps 745:
746: if (0 == argsz)
747: return(NULL);
748:
749: pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
1.2 kristaps 750: for (i = 0; i < (int)argsz; i++)
1.1 kristaps 751: argcpy(&pp[i], &args[i]);
752:
753: return(pp);
754: }
755:
1.35 kristaps 756:
1.36 kristaps 757: /* FIXME: deprecate. */
1.35 kristaps 758: char *
759: mdoc_node2a(struct mdoc_node *node)
760: {
761: static char buf[64];
762:
763: assert(node);
764:
765: buf[0] = 0;
766: (void)xstrlcat(buf, mdoc_type2a(node->type), 64);
767: if (MDOC_ROOT == node->type)
768: return(buf);
769: (void)xstrlcat(buf, " `", 64);
770: if (MDOC_TEXT == node->type)
771: (void)xstrlcat(buf, node->data.text.string, 64);
772: else
773: (void)xstrlcat(buf, mdoc_macronames[node->tok], 64);
1.36 kristaps 774: (void)xstrlcat(buf, "'", 64);
1.35 kristaps 775:
776: return(buf);
777: }
778:
779:
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