Annotation of mandoc/mdoc.c, Revision 1.243
1.243 ! schwarze 1: /* $Id: mdoc.c,v 1.242 2015/04/18 16:06:40 schwarze Exp $ */
1.1 kristaps 2: /*
1.182 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.237 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.75 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.241 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.75 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.241 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.75 kristaps 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.114 kristaps 18: #include "config.h"
19:
1.106 kristaps 20: #include <sys/types.h>
21:
1.1 kristaps 22: #include <assert.h>
1.211 schwarze 23: #include <ctype.h>
1.1 kristaps 24: #include <stdarg.h>
1.73 kristaps 25: #include <stdio.h>
1.1 kristaps 26: #include <stdlib.h>
27: #include <string.h>
1.120 kristaps 28: #include <time.h>
1.1 kristaps 29:
1.239 schwarze 30: #include "mandoc_aux.h"
31: #include "mandoc.h"
32: #include "roff.h"
1.187 kristaps 33: #include "mdoc.h"
1.239 schwarze 34: #include "libmandoc.h"
1.70 kristaps 35: #include "libmdoc.h"
1.1 kristaps 36:
1.216 schwarze 37: const char *const __mdoc_macronames[MDOC_MAX + 1] = {
1.82 kristaps 38: "Ap", "Dd", "Dt", "Os",
1.1 kristaps 39: "Sh", "Ss", "Pp", "D1",
40: "Dl", "Bd", "Ed", "Bl",
41: "El", "It", "Ad", "An",
42: "Ar", "Cd", "Cm", "Dv",
43: "Er", "Ev", "Ex", "Fa",
44: "Fd", "Fl", "Fn", "Ft",
45: "Ic", "In", "Li", "Nd",
46: "Nm", "Op", "Ot", "Pa",
47: "Rv", "St", "Va", "Vt",
1.114 kristaps 48: "Xr", "%A", "%B", "%D",
49: "%I", "%J", "%N", "%O",
50: "%P", "%R", "%T", "%V",
1.1 kristaps 51: "Ac", "Ao", "Aq", "At",
52: "Bc", "Bf", "Bo", "Bq",
53: "Bsx", "Bx", "Db", "Dc",
54: "Do", "Dq", "Ec", "Ef",
55: "Em", "Eo", "Fx", "Ms",
56: "No", "Ns", "Nx", "Ox",
57: "Pc", "Pf", "Po", "Pq",
58: "Qc", "Ql", "Qo", "Qq",
59: "Re", "Rs", "Sc", "So",
60: "Sq", "Sm", "Sx", "Sy",
61: "Tn", "Ux", "Xc", "Xo",
62: "Fo", "Fc", "Oo", "Oc",
63: "Bk", "Ek", "Bt", "Hf",
1.82 kristaps 64: "Fr", "Ud", "Lb", "Lp",
65: "Lk", "Mt", "Brq", "Bro",
1.114 kristaps 66: "Brc", "%C", "Es", "En",
67: "Dx", "%Q", "br", "sp",
1.216 schwarze 68: "%U", "Ta", "ll", "text",
1.1 kristaps 69: };
70:
1.213 schwarze 71: const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
1.1 kristaps 72: "split", "nosplit", "ragged",
1.213 schwarze 73: "unfilled", "literal", "file",
74: "offset", "bullet", "dash",
75: "hyphen", "item", "enum",
76: "tag", "diag", "hang",
77: "ohang", "inset", "column",
78: "width", "compact", "std",
1.52 kristaps 79: "filled", "words", "emphasis",
1.108 kristaps 80: "symbolic", "nested", "centered"
1.1 kristaps 81: };
82:
83: const char * const *mdoc_macronames = __mdoc_macronames;
84: const char * const *mdoc_argnames = __mdoc_argnames;
85:
1.240 schwarze 86: static void mdoc_node_free(struct roff_node *);
1.242 schwarze 87: static void mdoc_node_unlink(struct roff_man *,
1.240 schwarze 88: struct roff_node *);
1.242 schwarze 89: static void mdoc_free1(struct roff_man *);
90: static void mdoc_alloc1(struct roff_man *);
91: static struct roff_node *node_alloc(struct roff_man *, int, int,
1.240 schwarze 92: int, enum roff_type);
1.242 schwarze 93: static void node_append(struct roff_man *, struct roff_node *);
94: static int mdoc_ptext(struct roff_man *, int, char *, int);
95: static int mdoc_pmacro(struct roff_man *, int, char *, int);
1.88 kristaps 96:
1.213 schwarze 97:
1.240 schwarze 98: const struct roff_node *
1.242 schwarze 99: mdoc_node(const struct roff_man *mdoc)
1.1 kristaps 100: {
101:
1.203 schwarze 102: return(mdoc->first);
1.1 kristaps 103: }
104:
1.241 schwarze 105: const struct roff_meta *
1.242 schwarze 106: mdoc_meta(const struct roff_man *mdoc)
1.37 kristaps 107: {
108:
1.203 schwarze 109: return(&mdoc->meta);
1.37 kristaps 110: }
111:
1.85 kristaps 112: /*
113: * Frees volatile resources (parse tree, meta-data, fields).
114: */
1.73 kristaps 115: static void
1.242 schwarze 116: mdoc_free1(struct roff_man *mdoc)
1.67 kristaps 117: {
118:
119: if (mdoc->first)
1.121 kristaps 120: mdoc_node_delete(mdoc, mdoc->first);
1.223 schwarze 121: free(mdoc->meta.msec);
122: free(mdoc->meta.vol);
123: free(mdoc->meta.arch);
124: free(mdoc->meta.date);
125: free(mdoc->meta.title);
126: free(mdoc->meta.os);
127: free(mdoc->meta.name);
1.73 kristaps 128: }
129:
1.85 kristaps 130: /*
131: * Allocate all volatile resources (parse tree, meta-data, fields).
132: */
1.113 kristaps 133: static void
1.242 schwarze 134: mdoc_alloc1(struct roff_man *mdoc)
1.73 kristaps 135: {
1.67 kristaps 136:
1.241 schwarze 137: memset(&mdoc->meta, 0, sizeof(mdoc->meta));
1.243 ! schwarze 138: mdoc->macroset = MACROSET_MDOC;
1.67 kristaps 139: mdoc->flags = 0;
1.85 kristaps 140: mdoc->lastnamed = mdoc->lastsec = SEC_NONE;
1.240 schwarze 141: mdoc->last = mandoc_calloc(1, sizeof(*mdoc->last));
1.70 kristaps 142: mdoc->first = mdoc->last;
1.239 schwarze 143: mdoc->last->type = ROFFT_ROOT;
1.196 schwarze 144: mdoc->last->tok = MDOC_MAX;
1.242 schwarze 145: mdoc->next = ROFF_NEXT_CHILD;
1.73 kristaps 146: }
147:
148: /*
1.85 kristaps 149: * Free up volatile resources (see mdoc_free1()) then re-initialises the
150: * data with mdoc_alloc1(). After invocation, parse data has been reset
151: * and the parser is ready for re-invocation on a new tree; however,
152: * cross-parse non-volatile data is kept intact.
1.73 kristaps 153: */
1.113 kristaps 154: void
1.242 schwarze 155: mdoc_reset(struct roff_man *mdoc)
1.73 kristaps 156: {
157:
158: mdoc_free1(mdoc);
1.113 kristaps 159: mdoc_alloc1(mdoc);
1.67 kristaps 160: }
161:
1.68 kristaps 162: /*
1.85 kristaps 163: * Completely free up all volatile and non-volatile parse resources.
164: * After invocation, the pointer is no longer usable.
1.68 kristaps 165: */
1.67 kristaps 166: void
1.242 schwarze 167: mdoc_free(struct roff_man *mdoc)
1.34 kristaps 168: {
169:
1.73 kristaps 170: mdoc_free1(mdoc);
1.1 kristaps 171: free(mdoc);
172: }
173:
1.85 kristaps 174: /*
1.213 schwarze 175: * Allocate volatile and non-volatile parse resources.
1.85 kristaps 176: */
1.242 schwarze 177: struct roff_man *
1.208 schwarze 178: mdoc_alloc(struct roff *roff, struct mparse *parse,
1.220 schwarze 179: const char *defos, int quick)
1.1 kristaps 180: {
1.242 schwarze 181: struct roff_man *p;
1.1 kristaps 182:
1.242 schwarze 183: p = mandoc_calloc(1, sizeof(*p));
1.113 kristaps 184:
1.185 kristaps 185: p->parse = parse;
1.197 schwarze 186: p->defos = defos;
1.208 schwarze 187: p->quick = quick;
1.189 kristaps 188: p->roff = roff;
1.73 kristaps 189:
1.113 kristaps 190: mdoc_hash_init();
191: mdoc_alloc1(p);
192: return(p);
1.1 kristaps 193: }
194:
1.234 schwarze 195: void
1.242 schwarze 196: mdoc_endparse(struct roff_man *mdoc)
1.20 kristaps 197: {
198:
1.232 schwarze 199: mdoc_macroend(mdoc);
1.181 kristaps 200: }
201:
1.233 schwarze 202: void
1.242 schwarze 203: mdoc_addeqn(struct roff_man *mdoc, const struct eqn *ep)
1.181 kristaps 204: {
1.240 schwarze 205: struct roff_node *n;
1.181 kristaps 206:
1.239 schwarze 207: n = node_alloc(mdoc, ep->ln, ep->pos, MDOC_MAX, ROFFT_EQN);
1.181 kristaps 208: n->eqn = ep;
1.227 schwarze 209: if (ep->ln > mdoc->last->line)
210: n->flags |= MDOC_LINE;
1.230 schwarze 211: node_append(mdoc, n);
1.242 schwarze 212: mdoc->next = ROFF_NEXT_SIBLING;
1.20 kristaps 213: }
214:
1.233 schwarze 215: void
1.242 schwarze 216: mdoc_addspan(struct roff_man *mdoc, const struct tbl_span *sp)
1.175 kristaps 217: {
1.240 schwarze 218: struct roff_node *n;
1.175 kristaps 219:
1.239 schwarze 220: n = node_alloc(mdoc, sp->line, 0, MDOC_MAX, ROFFT_TBL);
1.180 kristaps 221: n->span = sp;
1.230 schwarze 222: node_append(mdoc, n);
1.242 schwarze 223: mdoc->next = ROFF_NEXT_SIBLING;
1.175 kristaps 224: }
225:
1.50 kristaps 226: /*
1.53 kristaps 227: * Main parse routine. Parses a single line -- really just hands off to
1.123 kristaps 228: * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
1.50 kristaps 229: */
1.20 kristaps 230: int
1.242 schwarze 231: mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs)
1.1 kristaps 232: {
233:
1.239 schwarze 234: if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line)
1.228 schwarze 235: mdoc->flags |= MDOC_NEWLINE;
1.153 schwarze 236:
237: /*
238: * Let the roff nS register switch SYNOPSIS mode early,
239: * such that the parser knows at all times
240: * whether this mode is on or off.
241: * Note that this mode is also switched by the Sh macro.
242: */
1.204 schwarze 243: if (roff_getreg(mdoc->roff, "nS"))
244: mdoc->flags |= MDOC_SYNOPSIS;
245: else
246: mdoc->flags &= ~MDOC_SYNOPSIS;
1.153 schwarze 247:
1.203 schwarze 248: return(roff_getcontrol(mdoc->roff, buf, &offs) ?
1.213 schwarze 249: mdoc_pmacro(mdoc, ln, buf, offs) :
250: mdoc_ptext(mdoc, ln, buf, offs));
1.1 kristaps 251: }
252:
1.232 schwarze 253: void
1.148 kristaps 254: mdoc_macro(MACRO_PROT_ARGS)
1.88 kristaps 255: {
1.122 kristaps 256: assert(tok < MDOC_MAX);
257:
1.223 schwarze 258: if (mdoc->flags & MDOC_PBODY) {
259: if (tok == MDOC_Dt) {
260: mandoc_vmsg(MANDOCERR_DT_LATE,
261: mdoc->parse, line, ppos,
262: "Dt %s", buf + *pos);
1.232 schwarze 263: return;
1.223 schwarze 264: }
265: } else if ( ! (mdoc_macros[tok].flags & MDOC_PROLOGUE)) {
266: if (mdoc->meta.title == NULL) {
267: mandoc_vmsg(MANDOCERR_DT_NOTITLE,
268: mdoc->parse, line, ppos, "%s %s",
269: mdoc_macronames[tok], buf + *pos);
270: mdoc->meta.title = mandoc_strdup("UNTITLED");
271: }
1.203 schwarze 272: if (NULL == mdoc->meta.vol)
273: mdoc->meta.vol = mandoc_strdup("LOCAL");
274: mdoc->flags |= MDOC_PBODY;
1.120 kristaps 275: }
1.232 schwarze 276: (*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf);
1.73 kristaps 277: }
278:
279:
1.230 schwarze 280: static void
1.242 schwarze 281: node_append(struct roff_man *mdoc, struct roff_node *p)
1.1 kristaps 282: {
283:
1.25 kristaps 284: assert(mdoc->last);
285: assert(mdoc->first);
1.239 schwarze 286: assert(p->type != ROFFT_ROOT);
1.1 kristaps 287:
1.13 kristaps 288: switch (mdoc->next) {
1.242 schwarze 289: case ROFF_NEXT_SIBLING:
1.6 kristaps 290: mdoc->last->next = p;
291: p->prev = mdoc->last;
1.13 kristaps 292: p->parent = mdoc->last->parent;
1.1 kristaps 293: break;
1.242 schwarze 294: case ROFF_NEXT_CHILD:
1.13 kristaps 295: mdoc->last->child = p;
1.1 kristaps 296: p->parent = mdoc->last;
297: break;
298: default:
1.13 kristaps 299: abort();
300: /* NOTREACHED */
1.1 kristaps 301: }
302:
1.86 kristaps 303: p->parent->nchild++;
304:
1.172 kristaps 305: /*
306: * Copy over the normalised-data pointer of our parent. Not
307: * everybody has one, but copying a null pointer is fine.
308: */
309:
310: switch (p->type) {
1.239 schwarze 311: case ROFFT_BODY:
1.202 schwarze 312: if (ENDBODY_NOT != p->end)
313: break;
1.172 kristaps 314: /* FALLTHROUGH */
1.239 schwarze 315: case ROFFT_TAIL:
1.172 kristaps 316: /* FALLTHROUGH */
1.239 schwarze 317: case ROFFT_HEAD:
1.172 kristaps 318: p->norm = p->parent->norm;
319: break;
320: default:
321: break;
322: }
323:
1.230 schwarze 324: mdoc_valid_pre(mdoc, p);
1.27 kristaps 325:
326: switch (p->type) {
1.239 schwarze 327: case ROFFT_HEAD:
328: assert(p->parent->type == ROFFT_BLOCK);
1.53 kristaps 329: p->parent->head = p;
1.27 kristaps 330: break;
1.239 schwarze 331: case ROFFT_TAIL:
332: assert(p->parent->type == ROFFT_BLOCK);
1.53 kristaps 333: p->parent->tail = p;
1.27 kristaps 334: break;
1.239 schwarze 335: case ROFFT_BODY:
1.152 schwarze 336: if (p->end)
337: break;
1.239 schwarze 338: assert(p->parent->type == ROFFT_BLOCK);
1.53 kristaps 339: p->parent->body = p;
1.27 kristaps 340: break;
341: default:
342: break;
343: }
344:
1.1 kristaps 345: mdoc->last = p;
1.71 kristaps 346:
347: switch (p->type) {
1.239 schwarze 348: case ROFFT_TBL:
1.176 kristaps 349: /* FALLTHROUGH */
1.239 schwarze 350: case ROFFT_TEXT:
1.230 schwarze 351: mdoc_valid_post(mdoc);
1.71 kristaps 352: break;
353: default:
354: break;
355: }
1.1 kristaps 356: }
357:
1.240 schwarze 358: static struct roff_node *
1.242 schwarze 359: node_alloc(struct roff_man *mdoc, int line, int pos,
1.240 schwarze 360: int tok, enum roff_type type)
1.45 kristaps 361: {
1.240 schwarze 362: struct roff_node *p;
1.46 kristaps 363:
1.240 schwarze 364: p = mandoc_calloc(1, sizeof(*p));
1.203 schwarze 365: p->sec = mdoc->lastsec;
1.73 kristaps 366: p->line = line;
367: p->pos = pos;
368: p->tok = tok;
1.118 kristaps 369: p->type = type;
1.150 kristaps 370:
371: /* Flag analysis. */
372:
1.203 schwarze 373: if (MDOC_SYNOPSIS & mdoc->flags)
1.153 schwarze 374: p->flags |= MDOC_SYNPRETTY;
375: else
376: p->flags &= ~MDOC_SYNPRETTY;
1.203 schwarze 377: if (MDOC_NEWLINE & mdoc->flags)
1.130 kristaps 378: p->flags |= MDOC_LINE;
1.203 schwarze 379: mdoc->flags &= ~MDOC_NEWLINE;
1.150 kristaps 380:
1.46 kristaps 381: return(p);
1.45 kristaps 382: }
383:
1.231 schwarze 384: void
1.242 schwarze 385: mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, int tok)
1.17 kristaps 386: {
1.240 schwarze 387: struct roff_node *p;
1.17 kristaps 388:
1.239 schwarze 389: p = node_alloc(mdoc, line, pos, tok, ROFFT_TAIL);
1.230 schwarze 390: node_append(mdoc, p);
1.242 schwarze 391: mdoc->next = ROFF_NEXT_CHILD;
1.17 kristaps 392: }
393:
1.240 schwarze 394: struct roff_node *
1.242 schwarze 395: mdoc_head_alloc(struct roff_man *mdoc, int line, int pos, int tok)
1.1 kristaps 396: {
1.240 schwarze 397: struct roff_node *p;
1.1 kristaps 398:
1.203 schwarze 399: assert(mdoc->first);
400: assert(mdoc->last);
1.239 schwarze 401: p = node_alloc(mdoc, line, pos, tok, ROFFT_HEAD);
1.230 schwarze 402: node_append(mdoc, p);
1.242 schwarze 403: mdoc->next = ROFF_NEXT_CHILD;
1.231 schwarze 404: return(p);
1.1 kristaps 405: }
406:
1.240 schwarze 407: struct roff_node *
1.242 schwarze 408: mdoc_body_alloc(struct roff_man *mdoc, int line, int pos, int tok)
1.1 kristaps 409: {
1.240 schwarze 410: struct roff_node *p;
1.1 kristaps 411:
1.239 schwarze 412: p = node_alloc(mdoc, line, pos, tok, ROFFT_BODY);
1.230 schwarze 413: node_append(mdoc, p);
1.242 schwarze 414: mdoc->next = ROFF_NEXT_CHILD;
1.231 schwarze 415: return(p);
1.152 schwarze 416: }
417:
1.240 schwarze 418: struct roff_node *
1.242 schwarze 419: mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos, int tok,
1.240 schwarze 420: struct roff_node *body, enum mdoc_endbody end)
1.152 schwarze 421: {
1.240 schwarze 422: struct roff_node *p;
1.152 schwarze 423:
1.237 schwarze 424: body->flags |= MDOC_ENDED;
425: body->parent->flags |= MDOC_ENDED;
1.239 schwarze 426: p = node_alloc(mdoc, line, pos, tok, ROFFT_BODY);
1.237 schwarze 427: p->body = body;
1.202 schwarze 428: p->norm = body->norm;
1.152 schwarze 429: p->end = end;
1.230 schwarze 430: node_append(mdoc, p);
1.242 schwarze 431: mdoc->next = ROFF_NEXT_SIBLING;
1.235 schwarze 432: return(p);
1.1 kristaps 433: }
434:
1.240 schwarze 435: struct roff_node *
1.242 schwarze 436: mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
1.240 schwarze 437: int tok, struct mdoc_arg *args)
1.1 kristaps 438: {
1.240 schwarze 439: struct roff_node *p;
1.1 kristaps 440:
1.239 schwarze 441: p = node_alloc(mdoc, line, pos, tok, ROFFT_BLOCK);
1.77 kristaps 442: p->args = args;
443: if (p->args)
1.53 kristaps 444: (args->refcnt)++;
1.172 kristaps 445:
446: switch (tok) {
1.213 schwarze 447: case MDOC_Bd:
1.172 kristaps 448: /* FALLTHROUGH */
1.213 schwarze 449: case MDOC_Bf:
1.172 kristaps 450: /* FALLTHROUGH */
1.213 schwarze 451: case MDOC_Bl:
1.217 schwarze 452: /* FALLTHROUGH */
453: case MDOC_En:
1.173 kristaps 454: /* FALLTHROUGH */
1.213 schwarze 455: case MDOC_Rs:
1.172 kristaps 456: p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
457: break;
458: default:
459: break;
460: }
1.230 schwarze 461: node_append(mdoc, p);
1.242 schwarze 462: mdoc->next = ROFF_NEXT_CHILD;
1.231 schwarze 463: return(p);
1.1 kristaps 464: }
465:
1.231 schwarze 466: void
1.242 schwarze 467: mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
1.240 schwarze 468: int tok, struct mdoc_arg *args)
1.1 kristaps 469: {
1.240 schwarze 470: struct roff_node *p;
1.1 kristaps 471:
1.239 schwarze 472: p = node_alloc(mdoc, line, pos, tok, ROFFT_ELEM);
1.77 kristaps 473: p->args = args;
474: if (p->args)
1.53 kristaps 475: (args->refcnt)++;
1.172 kristaps 476:
477: switch (tok) {
1.213 schwarze 478: case MDOC_An:
1.172 kristaps 479: p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
480: break;
481: default:
482: break;
483: }
1.230 schwarze 484: node_append(mdoc, p);
1.242 schwarze 485: mdoc->next = ROFF_NEXT_CHILD;
1.175 kristaps 486: }
1.1 kristaps 487:
1.231 schwarze 488: void
1.242 schwarze 489: mdoc_word_alloc(struct roff_man *mdoc, int line, int pos, const char *p)
1.1 kristaps 490: {
1.240 schwarze 491: struct roff_node *n;
1.1 kristaps 492:
1.239 schwarze 493: n = node_alloc(mdoc, line, pos, MDOC_MAX, ROFFT_TEXT);
1.203 schwarze 494: n->string = roff_strdup(mdoc->roff, p);
1.230 schwarze 495: node_append(mdoc, n);
1.242 schwarze 496: mdoc->next = ROFF_NEXT_SIBLING;
1.91 kristaps 497: }
498:
1.205 schwarze 499: void
1.242 schwarze 500: mdoc_word_append(struct roff_man *mdoc, const char *p)
1.205 schwarze 501: {
1.240 schwarze 502: struct roff_node *n;
1.205 schwarze 503: char *addstr, *newstr;
504:
505: n = mdoc->last;
506: addstr = roff_strdup(mdoc->roff, p);
1.210 schwarze 507: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
1.205 schwarze 508: free(addstr);
509: free(n->string);
510: n->string = newstr;
1.242 schwarze 511: mdoc->next = ROFF_NEXT_SIBLING;
1.205 schwarze 512: }
1.91 kristaps 513:
1.155 kristaps 514: static void
1.240 schwarze 515: mdoc_node_free(struct roff_node *p)
1.1 kristaps 516: {
517:
1.239 schwarze 518: if (p->type == ROFFT_BLOCK || p->type == ROFFT_ELEM)
1.171 kristaps 519: free(p->norm);
1.53 kristaps 520: if (p->string)
521: free(p->string);
522: if (p->args)
523: mdoc_argv_free(p->args);
1.1 kristaps 524: free(p);
525: }
526:
1.121 kristaps 527: static void
1.242 schwarze 528: mdoc_node_unlink(struct roff_man *mdoc, struct roff_node *n)
1.121 kristaps 529: {
530:
531: /* Adjust siblings. */
532:
533: if (n->prev)
534: n->prev->next = n->next;
535: if (n->next)
536: n->next->prev = n->prev;
537:
538: /* Adjust parent. */
539:
540: if (n->parent) {
541: n->parent->nchild--;
542: if (n->parent->child == n)
543: n->parent->child = n->prev ? n->prev : n->next;
1.169 kristaps 544: if (n->parent->last == n)
545: n->parent->last = n->prev ? n->prev : NULL;
1.121 kristaps 546: }
547:
548: /* Adjust parse point, if applicable. */
549:
1.203 schwarze 550: if (mdoc && mdoc->last == n) {
1.121 kristaps 551: if (n->prev) {
1.203 schwarze 552: mdoc->last = n->prev;
1.242 schwarze 553: mdoc->next = ROFF_NEXT_SIBLING;
1.121 kristaps 554: } else {
1.203 schwarze 555: mdoc->last = n->parent;
1.242 schwarze 556: mdoc->next = ROFF_NEXT_CHILD;
1.121 kristaps 557: }
558: }
559:
1.203 schwarze 560: if (mdoc && mdoc->first == n)
561: mdoc->first = NULL;
1.121 kristaps 562: }
563:
1.53 kristaps 564: void
1.242 schwarze 565: mdoc_node_delete(struct roff_man *mdoc, struct roff_node *p)
1.1 kristaps 566: {
567:
1.121 kristaps 568: while (p->child) {
569: assert(p->nchild);
1.203 schwarze 570: mdoc_node_delete(mdoc, p->child);
1.121 kristaps 571: }
572: assert(0 == p->nchild);
1.1 kristaps 573:
1.203 schwarze 574: mdoc_node_unlink(mdoc, p);
1.53 kristaps 575: mdoc_node_free(p);
1.201 schwarze 576: }
577:
1.231 schwarze 578: void
1.242 schwarze 579: mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p)
1.201 schwarze 580: {
581:
1.203 schwarze 582: mdoc_node_unlink(mdoc, p);
1.230 schwarze 583: node_append(mdoc, p);
1.1 kristaps 584: }
585:
1.53 kristaps 586: /*
587: * Parse free-form text, that is, a line that does not begin with the
588: * control character.
589: */
590: static int
1.242 schwarze 591: mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)
1.1 kristaps 592: {
1.240 schwarze 593: struct roff_node *n;
1.142 kristaps 594: char *c, *ws, *end;
595:
1.203 schwarze 596: assert(mdoc->last);
597: n = mdoc->last;
1.142 kristaps 598:
599: /*
1.144 kristaps 600: * Divert directly to list processing if we're encountering a
1.239 schwarze 601: * columnar ROFFT_BLOCK with or without a prior ROFFT_BLOCK entry
602: * (a ROFFT_BODY means it's already open, in which case we should
1.144 kristaps 603: * process within its context in the normal way).
1.142 kristaps 604: */
605:
1.239 schwarze 606: if (n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
1.238 schwarze 607: n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) {
1.144 kristaps 608: /* `Bl' is open without any children. */
1.203 schwarze 609: mdoc->flags |= MDOC_FREECOL;
1.232 schwarze 610: mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
611: return(1);
1.142 kristaps 612: }
613:
1.239 schwarze 614: if (n->tok == MDOC_It && n->type == ROFFT_BLOCK &&
1.213 schwarze 615: NULL != n->parent &&
616: MDOC_Bl == n->parent->tok &&
617: LIST_column == n->parent->norm->Bl.type) {
1.144 kristaps 618: /* `Bl' has block-level `It' children. */
1.203 schwarze 619: mdoc->flags |= MDOC_FREECOL;
1.232 schwarze 620: mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
621: return(1);
1.142 kristaps 622: }
1.124 kristaps 623:
1.137 schwarze 624: /*
625: * Search for the beginning of unescaped trailing whitespace (ws)
626: * and for the first character not to be output (end).
627: */
1.139 kristaps 628:
629: /* FIXME: replace with strcspn(). */
1.137 schwarze 630: ws = NULL;
631: for (c = end = buf + offs; *c; c++) {
632: switch (*c) {
633: case ' ':
634: if (NULL == ws)
635: ws = c;
636: continue;
637: case '\t':
638: /*
639: * Always warn about trailing tabs,
640: * even outside literal context,
641: * where they should be put on the next line.
642: */
643: if (NULL == ws)
644: ws = c;
645: /*
646: * Strip trailing tabs in literal context only;
647: * outside, they affect the next line.
648: */
1.203 schwarze 649: if (MDOC_LITERAL & mdoc->flags)
1.137 schwarze 650: continue;
651: break;
652: case '\\':
653: /* Skip the escaped character, too, if any. */
654: if (c[1])
655: c++;
656: /* FALLTHROUGH */
657: default:
658: ws = NULL;
659: break;
660: }
661: end = c + 1;
662: }
663: *end = '\0';
1.91 kristaps 664:
1.137 schwarze 665: if (ws)
1.218 schwarze 666: mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
667: line, (int)(ws-buf), NULL);
1.115 kristaps 668:
1.231 schwarze 669: if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) {
1.218 schwarze 670: mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
671: line, (int)(c - buf), NULL);
1.124 kristaps 672:
1.119 kristaps 673: /*
1.165 schwarze 674: * Insert a `sp' in the case of a blank line. Technically,
1.124 kristaps 675: * blank lines aren't allowed, but enough manuals assume this
676: * behaviour that we want to work around it.
1.119 kristaps 677: */
1.231 schwarze 678: mdoc_elem_alloc(mdoc, line, offs, MDOC_sp, NULL);
1.242 schwarze 679: mdoc->next = ROFF_NEXT_SIBLING;
1.230 schwarze 680: mdoc_valid_post(mdoc);
681: return(1);
1.119 kristaps 682: }
1.68 kristaps 683:
1.231 schwarze 684: mdoc_word_alloc(mdoc, line, offs, buf+offs);
1.91 kristaps 685:
1.231 schwarze 686: if (mdoc->flags & MDOC_LITERAL)
1.137 schwarze 687: return(1);
1.128 kristaps 688:
689: /*
690: * End-of-sentence check. If the last character is an unescaped
691: * EOS character, then flag the node as being the end of a
692: * sentence. The front-end will know how to interpret this.
693: */
1.132 kristaps 694:
1.137 schwarze 695: assert(buf < end);
696:
1.207 schwarze 697: if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
1.203 schwarze 698: mdoc->last->flags |= MDOC_EOS;
1.128 kristaps 699: return(1);
1.1 kristaps 700: }
701:
1.53 kristaps 702: /*
703: * Parse a macro line, that is, a line beginning with the control
704: * character.
705: */
1.155 kristaps 706: static int
1.242 schwarze 707: mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs)
1.1 kristaps 708: {
1.240 schwarze 709: struct roff_node *n;
1.229 schwarze 710: const char *cp;
1.240 schwarze 711: int tok;
1.188 kristaps 712: int i, sv;
1.144 kristaps 713: char mac[5];
1.63 kristaps 714:
1.188 kristaps 715: sv = offs;
1.130 kristaps 716:
1.213 schwarze 717: /*
1.162 schwarze 718: * Copy the first word into a nil-terminated buffer.
1.229 schwarze 719: * Stop when a space, tab, escape, or eoln is encountered.
1.160 kristaps 720: */
1.1 kristaps 721:
1.188 kristaps 722: i = 0;
1.229 schwarze 723: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.188 kristaps 724: mac[i++] = buf[offs++];
725:
726: mac[i] = '\0';
727:
1.214 schwarze 728: tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : MDOC_MAX;
1.1 kristaps 729:
1.229 schwarze 730: if (tok == MDOC_MAX) {
1.222 schwarze 731: mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
732: ln, sv, buf + sv - 1);
1.58 kristaps 733: return(1);
1.53 kristaps 734: }
1.1 kristaps 735:
1.229 schwarze 736: /* Skip a leading escape sequence or tab. */
1.160 kristaps 737:
1.229 schwarze 738: switch (buf[offs]) {
739: case '\\':
740: cp = buf + offs + 1;
741: mandoc_escape(&cp, NULL, NULL);
742: offs = cp - buf;
743: break;
744: case '\t':
1.188 kristaps 745: offs++;
1.229 schwarze 746: break;
747: default:
748: break;
749: }
1.160 kristaps 750:
751: /* Jump to the next non-whitespace word. */
1.1 kristaps 752:
1.188 kristaps 753: while (buf[offs] && ' ' == buf[offs])
754: offs++;
1.1 kristaps 755:
1.213 schwarze 756: /*
1.125 kristaps 757: * Trailing whitespace. Note that tabs are allowed to be passed
758: * into the parser as "text", so we only warn about spaces here.
759: */
1.115 kristaps 760:
1.188 kristaps 761: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.218 schwarze 762: mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
763: ln, offs - 1, NULL);
1.115 kristaps 764:
1.144 kristaps 765: /*
766: * If an initial macro or a list invocation, divert directly
767: * into macro processing.
768: */
769:
1.232 schwarze 770: if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok) {
771: mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
772: return(1);
773: }
1.144 kristaps 774:
1.203 schwarze 775: n = mdoc->last;
776: assert(mdoc->last);
1.144 kristaps 777:
778: /*
779: * If the first macro of a `Bl -column', open an `It' block
780: * context around the parsed macro.
781: */
782:
1.239 schwarze 783: if (n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
1.238 schwarze 784: n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) {
1.203 schwarze 785: mdoc->flags |= MDOC_FREECOL;
1.232 schwarze 786: mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
787: return(1);
1.144 kristaps 788: }
789:
790: /*
791: * If we're following a block-level `It' within a `Bl -column'
792: * context (perhaps opened in the above block or in ptext()),
793: * then open an `It' block context around the parsed macro.
1.98 kristaps 794: */
1.144 kristaps 795:
1.239 schwarze 796: if (n->tok == MDOC_It && n->type == ROFFT_BLOCK &&
1.213 schwarze 797: NULL != n->parent &&
798: MDOC_Bl == n->parent->tok &&
799: LIST_column == n->parent->norm->Bl.type) {
1.203 schwarze 800: mdoc->flags |= MDOC_FREECOL;
1.232 schwarze 801: mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
802: return(1);
1.144 kristaps 803: }
804:
805: /* Normal processing of a macro. */
806:
1.232 schwarze 807: mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
1.208 schwarze 808:
809: /* In quick mode (for mandocdb), abort after the NAME section. */
810:
811: if (mdoc->quick && MDOC_Sh == tok &&
812: SEC_NAME != mdoc->last->sec)
813: return(2);
1.1 kristaps 814:
1.53 kristaps 815: return(1);
1.1 kristaps 816: }
1.100 kristaps 817:
1.186 kristaps 818: enum mdelim
819: mdoc_isdelim(const char *p)
820: {
821:
822: if ('\0' == p[0])
823: return(DELIM_NONE);
824:
825: if ('\0' == p[1])
826: switch (p[0]) {
1.213 schwarze 827: case '(':
1.186 kristaps 828: /* FALLTHROUGH */
1.213 schwarze 829: case '[':
1.186 kristaps 830: return(DELIM_OPEN);
1.213 schwarze 831: case '|':
1.186 kristaps 832: return(DELIM_MIDDLE);
1.213 schwarze 833: case '.':
1.186 kristaps 834: /* FALLTHROUGH */
1.213 schwarze 835: case ',':
1.186 kristaps 836: /* FALLTHROUGH */
1.213 schwarze 837: case ';':
1.186 kristaps 838: /* FALLTHROUGH */
1.213 schwarze 839: case ':':
1.186 kristaps 840: /* FALLTHROUGH */
1.213 schwarze 841: case '?':
1.186 kristaps 842: /* FALLTHROUGH */
1.213 schwarze 843: case '!':
1.186 kristaps 844: /* FALLTHROUGH */
1.213 schwarze 845: case ')':
1.186 kristaps 846: /* FALLTHROUGH */
1.213 schwarze 847: case ']':
1.186 kristaps 848: return(DELIM_CLOSE);
849: default:
850: return(DELIM_NONE);
851: }
852:
853: if ('\\' != p[0])
854: return(DELIM_NONE);
1.100 kristaps 855:
1.186 kristaps 856: if (0 == strcmp(p + 1, "."))
857: return(DELIM_CLOSE);
1.200 schwarze 858: if (0 == strcmp(p + 1, "fR|\\fP"))
1.186 kristaps 859: return(DELIM_MIDDLE);
860:
861: return(DELIM_NONE);
1.211 schwarze 862: }
863:
864: void
1.240 schwarze 865: mdoc_deroff(char **dest, const struct roff_node *n)
1.211 schwarze 866: {
867: char *cp;
868: size_t sz;
869:
1.239 schwarze 870: if (n->type != ROFFT_TEXT) {
1.211 schwarze 871: for (n = n->child; n; n = n->next)
872: mdoc_deroff(dest, n);
873: return;
874: }
875:
876: /* Skip leading whitespace. */
877:
878: for (cp = n->string; '\0' != *cp; cp++)
879: if (0 == isspace((unsigned char)*cp))
880: break;
881:
882: /* Skip trailing whitespace. */
883:
884: for (sz = strlen(cp); sz; sz--)
885: if (0 == isspace((unsigned char)cp[sz-1]))
886: break;
887:
888: /* Skip empty strings. */
889:
890: if (0 == sz)
891: return;
892:
893: if (NULL == *dest) {
894: *dest = mandoc_strndup(cp, sz);
895: return;
896: }
897:
898: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
899: free(*dest);
900: *dest = cp;
1.186 kristaps 901: }
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