Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.96
1.96 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.95 2014/08/08 15:26:28 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.80 schwarze 4: * Copyright (c) 2010, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 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: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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: */
18: #include <assert.h>
19: #include <ctype.h>
20: #include <stdlib.h>
21: #include <stdio.h>
22: #include <string.h>
1.26 schwarze 23: #include <time.h>
1.1 kristaps 24:
1.66 schwarze 25: #include "mdoc.h"
1.44 schwarze 26: #include "mandoc.h"
1.1 kristaps 27: #include "libmdoc.h"
1.39 schwarze 28: #include "libmandoc.h"
1.1 kristaps 29:
1.48 schwarze 30: enum rew { /* see rew_dohalt() */
31: REWIND_NONE,
32: REWIND_THIS,
33: REWIND_MORE,
1.59 schwarze 34: REWIND_FORCE,
1.48 schwarze 35: REWIND_LATER,
1.54 schwarze 36: REWIND_ERROR
1.35 schwarze 37: };
1.1 kristaps 38:
1.88 schwarze 39: static int blk_full(MACRO_PROT_ARGS);
40: static int blk_exp_close(MACRO_PROT_ARGS);
41: static int blk_part_exp(MACRO_PROT_ARGS);
42: static int blk_part_imp(MACRO_PROT_ARGS);
43: static int ctx_synopsis(MACRO_PROT_ARGS);
44: static int in_line_eoln(MACRO_PROT_ARGS);
45: static int in_line_argn(MACRO_PROT_ARGS);
46: static int in_line(MACRO_PROT_ARGS);
47: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 48:
1.80 schwarze 49: static int dword(struct mdoc *, int, int, const char *,
50: enum mdelim, int);
1.88 schwarze 51: static int append_delims(struct mdoc *,
1.36 schwarze 52: int, int *, char *);
53: static enum mdoct lookup(enum mdoct, const char *);
54: static enum mdoct lookup_raw(const char *);
1.49 schwarze 55: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 56: struct mdoc *, int, int);
1.88 schwarze 57: static int phrase(struct mdoc *, int, int, char *);
58: static enum mdoct rew_alt(enum mdoct);
59: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.36 schwarze 60: const struct mdoc_node *);
1.88 schwarze 61: static int rew_elem(struct mdoc *, enum mdoct);
62: static int rew_last(struct mdoc *,
1.36 schwarze 63: const struct mdoc_node *);
1.88 schwarze 64: static int rew_sub(enum mdoc_type, struct mdoc *,
1.36 schwarze 65: enum mdoct, int, int);
1.1 kristaps 66:
67: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 68: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 69: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
70: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
71: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 72: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
73: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
74: { in_line_eoln, 0 }, /* Pp */
75: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
76: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 77: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 78: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 79: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 80: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
81: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
83: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 90: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
92: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 96: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 98: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
99: { blk_full, MDOC_JOIN }, /* Nd */
100: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 101: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 102: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
104: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 105: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 107: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 109: { in_line_eoln, MDOC_JOIN }, /* %A */
110: { in_line_eoln, MDOC_JOIN }, /* %B */
111: { in_line_eoln, MDOC_JOIN }, /* %D */
112: { in_line_eoln, MDOC_JOIN }, /* %I */
113: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 114: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 115: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 116: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 117: { in_line_eoln, MDOC_JOIN }, /* %R */
118: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 119: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 120: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
121: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
122: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
123: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 126: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
128: { blk_full, MDOC_EXPLICIT }, /* Bf */
129: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
130: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
131: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 132: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
133: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
134: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 135: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
136: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
137: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
138: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
139: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
140: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
141: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
142: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 143: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 145: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.80 schwarze 146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
147: MDOC_IGNDELIM | MDOC_JOIN }, /* No */
148: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 150: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
151: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 152: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
153: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 154: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 155: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
156: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
157: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
158: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
161: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
162: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
163: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
164: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 165: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 166: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
167: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
168: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
169: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
170: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.1 kristaps 171: { in_line_eoln, 0 }, /* Sm */
1.80 schwarze 172: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
173: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 174: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 175: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 176: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
177: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 178: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
179: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
180: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
181: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
182: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
183: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
184: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 185: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 186: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 187: { in_line_eoln, 0 }, /* Bt */
188: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 189: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 190: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 191: { in_line, 0 }, /* Lb */
1.80 schwarze 192: { in_line_eoln, 0 }, /* Lp */
193: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
194: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
195: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
196: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
197: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
198: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
199: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
200: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 201: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
202: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 203: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 204: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 205: { in_line_eoln, 0 }, /* br */
206: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 207: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 208: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.87 schwarze 209: { in_line_eoln, 0 }, /* ll */
1.1 kristaps 210: };
211:
212: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
213:
214:
215: /*
216: * This is called at the end of parsing. It must traverse up the tree,
217: * closing out open [implicit] scopes. Obviously, open explicit scopes
218: * are errors.
219: */
220: int
1.76 schwarze 221: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 222: {
223: struct mdoc_node *n;
224:
225: /* Scan for open explicit scopes. */
226:
1.76 schwarze 227: n = MDOC_VALID & mdoc->last->flags ?
1.88 schwarze 228: mdoc->last->parent : mdoc->last;
1.1 kristaps 229:
1.56 schwarze 230: for ( ; n; n = n->parent)
231: if (MDOC_BLOCK == n->type &&
232: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
1.94 schwarze 233: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
234: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 235:
1.22 schwarze 236: /* Rewind to the first. */
237:
1.76 schwarze 238: return(rew_last(mdoc, mdoc->first));
1.1 kristaps 239: }
240:
1.22 schwarze 241: /*
242: * Look up a macro from within a subsequent context.
243: */
1.36 schwarze 244: static enum mdoct
245: lookup(enum mdoct from, const char *p)
1.21 schwarze 246: {
247:
248: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
249: return(MDOC_MAX);
1.24 schwarze 250: return(lookup_raw(p));
1.21 schwarze 251: }
252:
1.22 schwarze 253: /*
254: * Lookup a macro following the initial line macro.
255: */
1.36 schwarze 256: static enum mdoct
1.24 schwarze 257: lookup_raw(const char *p)
1.1 kristaps 258: {
1.36 schwarze 259: enum mdoct res;
1.1 kristaps 260:
1.24 schwarze 261: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 262: return(MDOC_MAX);
263: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 264: return(res);
265: return(MDOC_MAX);
266: }
267:
268: static int
1.22 schwarze 269: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 270: {
1.63 schwarze 271: struct mdoc_node *n, *np;
1.1 kristaps 272:
273: assert(to);
274: mdoc->next = MDOC_NEXT_SIBLING;
275:
1.88 schwarze 276:
1.1 kristaps 277: while (mdoc->last != to) {
1.63 schwarze 278: /*
279: * Save the parent here, because we may delete the
1.76 schwarze 280: * mdoc->last node in the post-validation phase and reset
281: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 282: * out to be lost.
283: */
284: np = mdoc->last->parent;
1.1 kristaps 285: if ( ! mdoc_valid_post(mdoc))
286: return(0);
1.61 schwarze 287: n = mdoc->last;
1.63 schwarze 288: mdoc->last = np;
1.1 kristaps 289: assert(mdoc->last);
1.61 schwarze 290: mdoc->last->last = n;
1.1 kristaps 291: }
292:
1.60 schwarze 293: return(mdoc_valid_post(mdoc));
1.1 kristaps 294: }
295:
1.22 schwarze 296: /*
1.48 schwarze 297: * For a block closing macro, return the corresponding opening one.
298: * Otherwise, return the macro itself.
1.22 schwarze 299: */
1.34 schwarze 300: static enum mdoct
301: rew_alt(enum mdoct tok)
1.1 kristaps 302: {
303: switch (tok) {
1.88 schwarze 304: case MDOC_Ac:
1.1 kristaps 305: return(MDOC_Ao);
1.88 schwarze 306: case MDOC_Bc:
1.1 kristaps 307: return(MDOC_Bo);
1.88 schwarze 308: case MDOC_Brc:
1.1 kristaps 309: return(MDOC_Bro);
1.88 schwarze 310: case MDOC_Dc:
1.1 kristaps 311: return(MDOC_Do);
1.88 schwarze 312: case MDOC_Ec:
1.1 kristaps 313: return(MDOC_Eo);
1.88 schwarze 314: case MDOC_Ed:
1.1 kristaps 315: return(MDOC_Bd);
1.88 schwarze 316: case MDOC_Ef:
1.1 kristaps 317: return(MDOC_Bf);
1.88 schwarze 318: case MDOC_Ek:
1.1 kristaps 319: return(MDOC_Bk);
1.88 schwarze 320: case MDOC_El:
1.1 kristaps 321: return(MDOC_Bl);
1.88 schwarze 322: case MDOC_Fc:
1.1 kristaps 323: return(MDOC_Fo);
1.88 schwarze 324: case MDOC_Oc:
1.1 kristaps 325: return(MDOC_Oo);
1.88 schwarze 326: case MDOC_Pc:
1.1 kristaps 327: return(MDOC_Po);
1.88 schwarze 328: case MDOC_Qc:
1.1 kristaps 329: return(MDOC_Qo);
1.88 schwarze 330: case MDOC_Re:
1.1 kristaps 331: return(MDOC_Rs);
1.88 schwarze 332: case MDOC_Sc:
1.1 kristaps 333: return(MDOC_So);
1.88 schwarze 334: case MDOC_Xc:
1.1 kristaps 335: return(MDOC_Xo);
336: default:
1.48 schwarze 337: return(tok);
1.1 kristaps 338: }
339: /* NOTREACHED */
340: }
341:
1.48 schwarze 342: /*
343: * Rewinding to tok, how do we have to handle *p?
344: * REWIND_NONE: *p would delimit tok, but no tok scope is open
345: * inside *p, so there is no need to rewind anything at all.
346: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
347: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 schwarze 348: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 349: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
350: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 351: */
1.35 schwarze 352: static enum rew
1.88 schwarze 353: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.34 schwarze 354: const struct mdoc_node *p)
1.1 kristaps 355: {
356:
1.50 schwarze 357: /*
358: * No matching token, no delimiting block, no broken block.
359: * This can happen when full implicit macros are called for
360: * the first time but try to rewind their previous
361: * instance anyway.
362: */
1.1 kristaps 363: if (MDOC_ROOT == p->type)
1.48 schwarze 364: return(MDOC_BLOCK == type &&
365: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
366: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 367:
368: /*
1.88 schwarze 369: * When starting to rewind, skip plain text
1.50 schwarze 370: * and nodes that have already been rewound.
371: */
1.48 schwarze 372: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
373: return(REWIND_MORE);
374:
1.50 schwarze 375: /*
376: * The easiest case: Found a matching token.
377: * This applies to both blocks and elements.
378: */
1.48 schwarze 379: tok = rew_alt(tok);
380: if (tok == p->tok)
381: return(p->end ? REWIND_NONE :
382: type == p->type ? REWIND_THIS : REWIND_MORE);
383:
1.50 schwarze 384: /*
385: * While elements do require rewinding for themselves,
386: * they never affect rewinding of other nodes.
387: */
1.48 schwarze 388: if (MDOC_ELEM == p->type)
389: return(REWIND_MORE);
1.1 kristaps 390:
1.50 schwarze 391: /*
392: * Blocks delimited by our target token get REWIND_MORE.
1.88 schwarze 393: * Blocks delimiting our target token get REWIND_NONE.
1.50 schwarze 394: */
1.1 kristaps 395: switch (tok) {
1.88 schwarze 396: case MDOC_Bl:
1.48 schwarze 397: if (MDOC_It == p->tok)
398: return(REWIND_MORE);
1.1 kristaps 399: break;
1.88 schwarze 400: case MDOC_It:
1.1 kristaps 401: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 402: return(REWIND_NONE);
1.1 kristaps 403: break;
1.48 schwarze 404: /*
405: * XXX Badly nested block handling still fails badly
406: * when one block is breaking two blocks of the same type.
407: * This is an incomplete and extremely ugly workaround,
408: * required to let the OpenBSD tree build.
409: */
1.88 schwarze 410: case MDOC_Oo:
1.48 schwarze 411: if (MDOC_Op == p->tok)
412: return(REWIND_MORE);
1.1 kristaps 413: break;
1.88 schwarze 414: case MDOC_Nm:
1.51 schwarze 415: return(REWIND_NONE);
1.88 schwarze 416: case MDOC_Nd:
1.12 schwarze 417: /* FALLTHROUGH */
1.88 schwarze 418: case MDOC_Ss:
1.1 kristaps 419: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 420: return(REWIND_NONE);
1.1 kristaps 421: /* FALLTHROUGH */
1.88 schwarze 422: case MDOC_Sh:
1.95 schwarze 423: if (MDOC_ROOT == p->parent->type)
424: return(REWIND_THIS);
1.48 schwarze 425: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
426: MDOC_Sh == p->tok)
427: return(REWIND_MORE);
1.1 kristaps 428: break;
429: default:
430: break;
431: }
432:
1.50 schwarze 433: /*
434: * Default block rewinding rules.
1.51 schwarze 435: * In particular, always skip block end markers,
436: * and let all blocks rewind Nm children.
1.50 schwarze 437: */
1.54 schwarze 438: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 439: (MDOC_BLOCK == p->type &&
1.50 schwarze 440: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
441: return(REWIND_MORE);
442:
443: /*
1.59 schwarze 444: * By default, closing out full blocks
445: * forces closing of broken explicit blocks,
446: * while closing out partial blocks
447: * allows delayed rewinding by default.
1.50 schwarze 448: */
1.59 schwarze 449: return (&blk_full == mdoc_macros[tok].fp ?
450: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 451: }
452:
453: static int
1.34 schwarze 454: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 455: {
456: struct mdoc_node *n;
457:
458: n = mdoc->last;
459: if (MDOC_ELEM != n->type)
460: n = n->parent;
461: assert(MDOC_ELEM == n->type);
462: assert(tok == n->tok);
463:
464: return(rew_last(mdoc, n));
465: }
466:
1.47 schwarze 467: /*
468: * We are trying to close a block identified by tok,
469: * but the child block *broken is still open.
470: * Thus, postpone closing the tok block
471: * until the rew_sub call closing *broken.
472: */
473: static int
474: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.76 schwarze 475: struct mdoc *mdoc, int line, int ppos)
1.47 schwarze 476: {
477: struct mdoc_node *breaker;
478:
479: /*
480: * Iterate backwards, searching for the block matching tok,
481: * that is, the block breaking the *broken block.
482: */
483: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
484:
485: /*
486: * If the *broken block had already been broken before
487: * and we encounter its breaker, make the tok block
488: * pending on the inner breaker.
489: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
490: * becomes "[A broken=[B [C->B B] tok=A] C]"
491: * and finally "[A [B->A [C->B B] A] C]".
492: */
493: if (breaker == broken->pending) {
494: broken = breaker;
495: continue;
496: }
497:
1.48 schwarze 498: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 499: continue;
500: if (MDOC_BODY == broken->type)
501: broken = broken->parent;
502:
503: /*
504: * Found the breaker.
505: * If another, outer breaker is already pending on
506: * the *broken block, we must not clobber the link
507: * to the outer breaker, but make it pending on the
508: * new, now inner breaker.
509: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
510: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
511: * and finally "[A [B->A [C->B A] B] C]".
512: */
513: if (broken->pending) {
514: struct mdoc_node *taker;
515:
516: /*
517: * If the breaker had also been broken before,
518: * it cannot take on the outer breaker itself,
519: * but must hand it on to its own breakers.
520: * Graphically, this is the following situation:
521: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
522: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
523: */
524: taker = breaker;
525: while (taker->pending)
526: taker = taker->pending;
527: taker->pending = broken->pending;
528: }
529: broken->pending = breaker;
1.94 schwarze 530: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.88 schwarze 531: "%s breaks %s", mdoc_macronames[tok],
532: mdoc_macronames[broken->tok]);
1.47 schwarze 533: return(1);
534: }
535:
536: /*
537: * Found no matching block for tok.
538: * Are you trying to close a block that is not open?
539: */
540: return(0);
541: }
542:
1.1 kristaps 543: static int
1.88 schwarze 544: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.34 schwarze 545: enum mdoct tok, int line, int ppos)
1.1 kristaps 546: {
547: struct mdoc_node *n;
548:
1.76 schwarze 549: n = mdoc->last;
1.48 schwarze 550: while (n) {
551: switch (rew_dohalt(tok, t, n)) {
1.88 schwarze 552: case REWIND_NONE:
1.48 schwarze 553: return(1);
1.88 schwarze 554: case REWIND_THIS:
1.81 schwarze 555: n->lastline = line -
556: (MDOC_NEWLINE & mdoc->flags &&
557: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags));
1.48 schwarze 558: break;
1.88 schwarze 559: case REWIND_FORCE:
1.94 schwarze 560: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.88 schwarze 561: line, ppos, "%s breaks %s",
562: mdoc_macronames[tok],
563: mdoc_macronames[n->tok]);
1.59 schwarze 564: /* FALLTHROUGH */
1.88 schwarze 565: case REWIND_MORE:
1.81 schwarze 566: n->lastline = line -
567: (MDOC_NEWLINE & mdoc->flags ? 1 : 0);
1.48 schwarze 568: n = n->parent;
569: continue;
1.88 schwarze 570: case REWIND_LATER:
1.76 schwarze 571: if (make_pending(n, tok, mdoc, line, ppos) ||
1.59 schwarze 572: MDOC_BLOCK != t)
573: return(1);
574: /* FALLTHROUGH */
1.88 schwarze 575: case REWIND_ERROR:
1.94 schwarze 576: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
577: mdoc->parse, line, ppos,
578: mdoc_macronames[tok]);
1.59 schwarze 579: return(1);
1.22 schwarze 580: }
1.48 schwarze 581: break;
1.1 kristaps 582: }
583:
584: assert(n);
1.76 schwarze 585: if ( ! rew_last(mdoc, n))
1.29 schwarze 586: return(0);
587:
588: /*
1.47 schwarze 589: * The current block extends an enclosing block.
590: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 591: */
1.47 schwarze 592: while (NULL != (n = n->pending)) {
1.76 schwarze 593: if ( ! rew_last(mdoc, n))
1.29 schwarze 594: return(0);
1.47 schwarze 595: if (MDOC_HEAD == n->type &&
1.76 schwarze 596: ! mdoc_body_alloc(mdoc, n->line, n->pos, n->tok))
1.29 schwarze 597: return(0);
598: }
1.54 schwarze 599:
1.29 schwarze 600: return(1);
1.1 kristaps 601: }
602:
1.66 schwarze 603: /*
604: * Allocate a word and check whether it's punctuation or not.
605: * Punctuation consists of those tokens found in mdoc_isdelim().
606: */
607: static int
1.80 schwarze 608: dword(struct mdoc *mdoc, int line, int col, const char *p,
609: enum mdelim d, int may_append)
1.66 schwarze 610: {
1.88 schwarze 611:
1.66 schwarze 612: if (DELIM_MAX == d)
613: d = mdoc_isdelim(p);
614:
1.80 schwarze 615: if (may_append &&
616: ! ((MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF) & mdoc->flags) &&
617: DELIM_NONE == d && MDOC_TEXT == mdoc->last->type &&
618: DELIM_NONE == mdoc_isdelim(mdoc->last->string)) {
619: mdoc_word_append(mdoc, p);
620: return(1);
621: }
622:
1.76 schwarze 623: if ( ! mdoc_word_alloc(mdoc, line, col, p))
1.66 schwarze 624: return(0);
625:
626: if (DELIM_OPEN == d)
1.76 schwarze 627: mdoc->last->flags |= MDOC_DELIMO;
1.71 schwarze 628:
629: /*
630: * Closing delimiters only suppress the preceding space
631: * when they follow something, not when they start a new
632: * block or element, and not when they follow `No'.
633: *
634: * XXX Explicitly special-casing MDOC_No here feels
635: * like a layering violation. Find a better way
636: * and solve this in the code related to `No'!
637: */
638:
1.76 schwarze 639: else if (DELIM_CLOSE == d && mdoc->last->prev &&
1.88 schwarze 640: mdoc->last->prev->tok != MDOC_No &&
641: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 642: mdoc->last->flags |= MDOC_DELIMC;
1.66 schwarze 643:
644: return(1);
645: }
1.1 kristaps 646:
647: static int
1.76 schwarze 648: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 649: {
1.42 schwarze 650: int la;
1.36 schwarze 651: enum margserr ac;
1.1 kristaps 652: char *p;
653:
1.42 schwarze 654: if ('\0' == buf[*pos])
1.1 kristaps 655: return(1);
656:
657: for (;;) {
1.42 schwarze 658: la = *pos;
1.76 schwarze 659: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.1 kristaps 660:
1.36 schwarze 661: if (ARGS_ERROR == ac)
1.1 kristaps 662: return(0);
1.36 schwarze 663: else if (ARGS_EOLN == ac)
1.1 kristaps 664: break;
1.42 schwarze 665:
1.80 schwarze 666: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 667:
1.42 schwarze 668: /*
669: * If we encounter end-of-sentence symbols, then trigger
670: * the double-space.
671: *
1.68 schwarze 672: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 673: * the last symbol, such that `. )' will cause the
674: * correct double-spacing. However, (1) groff isn't
675: * smart enough to do this and (2) it would require
676: * knowing which symbols break this behaviour, for
1.68 schwarze 677: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 678: */
1.84 schwarze 679: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 680: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 681: }
682:
683: return(1);
684: }
685:
686: /*
1.88 schwarze 687: * Close out block partial/full explicit.
1.1 kristaps 688: */
689: static int
690: blk_exp_close(MACRO_PROT_ARGS)
691: {
1.47 schwarze 692: struct mdoc_node *body; /* Our own body. */
693: struct mdoc_node *later; /* A sub-block starting later. */
694: struct mdoc_node *n; /* For searching backwards. */
695:
1.88 schwarze 696: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 697: enum margserr ac;
1.47 schwarze 698: enum mdoct atok, ntok;
1.1 kristaps 699: char *p;
700:
1.76 schwarze 701: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 702:
1.1 kristaps 703: switch (tok) {
1.88 schwarze 704: case MDOC_Ec:
1.1 kristaps 705: maxargs = 1;
706: break;
1.88 schwarze 707: case MDOC_Ek:
1.82 schwarze 708: mdoc->flags &= ~MDOC_KEEP;
1.1 kristaps 709: default:
710: maxargs = 0;
711: break;
712: }
713:
1.47 schwarze 714: /*
715: * Search backwards for beginnings of blocks,
716: * both of our own and of pending sub-blocks.
717: */
718: atok = rew_alt(tok);
719: body = later = NULL;
1.76 schwarze 720: for (n = mdoc->last; n; n = n->parent) {
1.47 schwarze 721: if (MDOC_VALID & n->flags)
722: continue;
723:
724: /* Remember the start of our own body. */
725: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 726: if (ENDBODY_NOT == n->end)
1.47 schwarze 727: body = n;
728: continue;
729: }
730:
1.51 schwarze 731: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 732: continue;
733: if (atok == n->tok) {
734: assert(body);
735:
736: /*
737: * Found the start of our own block.
738: * When there is no pending sub block,
739: * just proceed to closing out.
740: */
741: if (NULL == later)
742: break;
743:
1.88 schwarze 744: /*
1.47 schwarze 745: * When there is a pending sub block,
746: * postpone closing out the current block
747: * until the rew_sub() closing out the sub-block.
748: */
1.76 schwarze 749: make_pending(later, tok, mdoc, line, ppos);
1.47 schwarze 750:
751: /*
752: * Mark the place where the formatting - but not
753: * the scope - of the current block ends.
754: */
1.76 schwarze 755: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.47 schwarze 756: atok, body, ENDBODY_SPACE))
757: return(0);
758: break;
759: }
760:
761: /*
762: * When finding an open sub block, remember the last
763: * open explicit block, or, in case there are only
764: * implicit ones, the first open implicit block.
765: */
766: if (later &&
767: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
768: continue;
1.75 schwarze 769: if (MDOC_It != n->tok)
1.47 schwarze 770: later = n;
771: }
772:
1.93 schwarze 773: if ( ! (MDOC_PARSED & mdoc_macros[tok].flags)) {
774: if ('\0' != buf[*pos])
775: mandoc_vmsg(MANDOCERR_ARG_SKIP,
776: mdoc->parse, line, ppos,
777: "%s %s", mdoc_macronames[tok],
778: buf + *pos);
1.76 schwarze 779: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.14 schwarze 780: return(0);
1.76 schwarze 781: return(rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos));
1.1 kristaps 782: }
783:
1.76 schwarze 784: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 785: return(0);
786:
1.88 schwarze 787: if (NULL == later && maxargs > 0)
1.76 schwarze 788: if ( ! mdoc_tail_alloc(mdoc, line, ppos, rew_alt(tok)))
1.1 kristaps 789: return(0);
790:
1.20 schwarze 791: for (flushed = j = 0; ; j++) {
1.1 kristaps 792: lastarg = *pos;
793:
794: if (j == maxargs && ! flushed) {
1.76 schwarze 795: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 796: return(0);
797: flushed = 1;
798: }
799:
1.76 schwarze 800: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 801:
1.36 schwarze 802: if (ARGS_ERROR == ac)
1.1 kristaps 803: return(0);
1.36 schwarze 804: if (ARGS_PUNCT == ac)
1.1 kristaps 805: break;
1.36 schwarze 806: if (ARGS_EOLN == ac)
1.1 kristaps 807: break;
808:
1.36 schwarze 809: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
810:
811: if (MDOC_MAX == ntok) {
1.80 schwarze 812: if ( ! dword(mdoc, line, lastarg, p, DELIM_MAX,
813: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 814: return(0);
1.36 schwarze 815: continue;
816: }
1.1 kristaps 817:
1.36 schwarze 818: if ( ! flushed) {
1.76 schwarze 819: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.36 schwarze 820: return(0);
821: flushed = 1;
822: }
1.79 schwarze 823:
824: mdoc->flags &= ~MDOC_NEWLINE;
825:
1.76 schwarze 826: if ( ! mdoc_macro(mdoc, ntok, line, lastarg, pos, buf))
1.1 kristaps 827: return(0);
1.36 schwarze 828: break;
1.1 kristaps 829: }
830:
1.76 schwarze 831: if ( ! flushed && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 832: return(0);
833:
1.37 schwarze 834: if ( ! nl)
1.1 kristaps 835: return(1);
1.76 schwarze 836: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 837: }
838:
839: static int
840: in_line(MACRO_PROT_ARGS)
841: {
1.45 schwarze 842: int la, scope, cnt, nc, nl;
1.36 schwarze 843: enum margverr av;
844: enum mdoct ntok;
845: enum margserr ac;
1.40 schwarze 846: enum mdelim d;
1.36 schwarze 847: struct mdoc_arg *arg;
848: char *p;
1.1 kristaps 849:
1.76 schwarze 850: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 851:
1.1 kristaps 852: /*
853: * Whether we allow ignored elements (those without content,
854: * usually because of reserved words) to squeak by.
855: */
1.32 schwarze 856:
1.1 kristaps 857: switch (tok) {
1.88 schwarze 858: case MDOC_An:
1.19 schwarze 859: /* FALLTHROUGH */
1.88 schwarze 860: case MDOC_Ar:
1.1 kristaps 861: /* FALLTHROUGH */
1.88 schwarze 862: case MDOC_Fl:
1.1 kristaps 863: /* FALLTHROUGH */
1.88 schwarze 864: case MDOC_Mt:
1.18 schwarze 865: /* FALLTHROUGH */
1.88 schwarze 866: case MDOC_Nm:
1.19 schwarze 867: /* FALLTHROUGH */
1.88 schwarze 868: case MDOC_Pa:
1.1 kristaps 869: nc = 1;
870: break;
871: default:
872: nc = 0;
873: break;
874: }
875:
1.20 schwarze 876: for (arg = NULL;; ) {
1.1 kristaps 877: la = *pos;
1.76 schwarze 878: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 879:
1.36 schwarze 880: if (ARGV_WORD == av) {
1.1 kristaps 881: *pos = la;
882: break;
1.88 schwarze 883: }
1.36 schwarze 884: if (ARGV_EOLN == av)
1.1 kristaps 885: break;
1.36 schwarze 886: if (ARGV_ARG == av)
1.1 kristaps 887: continue;
888:
889: mdoc_argv_free(arg);
890: return(0);
891: }
892:
1.45 schwarze 893: for (cnt = scope = 0;; ) {
1.1 kristaps 894: la = *pos;
1.76 schwarze 895: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 896:
1.36 schwarze 897: if (ARGS_ERROR == ac)
1.1 kristaps 898: return(0);
1.36 schwarze 899: if (ARGS_EOLN == ac)
1.1 kristaps 900: break;
1.36 schwarze 901: if (ARGS_PUNCT == ac)
1.1 kristaps 902: break;
903:
1.36 schwarze 904: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 905:
1.88 schwarze 906: /*
1.1 kristaps 907: * In this case, we've located a submacro and must
908: * execute it. Close out scope, if open. If no
909: * elements have been generated, either create one (nc)
910: * or raise a warning.
911: */
912:
1.36 schwarze 913: if (MDOC_MAX != ntok) {
1.76 schwarze 914: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 915: return(0);
916: if (nc && 0 == cnt) {
1.88 schwarze 917: if ( ! mdoc_elem_alloc(mdoc,
918: line, ppos, tok, arg))
1.1 kristaps 919: return(0);
1.76 schwarze 920: if ( ! rew_last(mdoc, mdoc->last))
1.3 schwarze 921: return(0);
1.1 kristaps 922: } else if ( ! nc && 0 == cnt) {
923: mdoc_argv_free(arg);
1.92 schwarze 924: mandoc_msg(MANDOCERR_MACRO_EMPTY,
925: mdoc->parse, line, ppos,
926: mdoc_macronames[tok]);
1.1 kristaps 927: }
1.65 schwarze 928:
1.76 schwarze 929: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 930: return(0);
1.37 schwarze 931: if ( ! nl)
1.1 kristaps 932: return(1);
1.76 schwarze 933: return(append_delims(mdoc, line, pos, buf));
1.88 schwarze 934: }
1.1 kristaps 935:
1.88 schwarze 936: /*
1.1 kristaps 937: * Non-quote-enclosed punctuation. Set up our scope, if
938: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 939: * the word.
1.1 kristaps 940: */
941:
1.66 schwarze 942: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 943:
1.45 schwarze 944: if (DELIM_NONE != d) {
945: /*
946: * If we encounter closing punctuation, no word
947: * has been omitted, no scope is open, and we're
948: * allowed to have an empty element, then start
949: * a new scope. `Ar', `Fl', and `Li', only do
950: * this once per invocation. There may be more
951: * of these (all of them?).
952: */
1.88 schwarze 953: if (0 == cnt && (nc || MDOC_Li == tok) &&
954: DELIM_CLOSE == d && ! scope) {
955: if ( ! mdoc_elem_alloc(mdoc,
956: line, ppos, tok, arg))
1.45 schwarze 957: return(0);
1.88 schwarze 958: if (MDOC_Ar == tok || MDOC_Li == tok ||
959: MDOC_Fl == tok)
1.45 schwarze 960: cnt++;
961: scope = 1;
962: }
963: /*
964: * Close out our scope, if one is open, before
965: * any punctuation.
966: */
1.76 schwarze 967: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 968: return(0);
1.45 schwarze 969: scope = 0;
970: } else if ( ! scope) {
1.76 schwarze 971: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 972: return(0);
1.45 schwarze 973: scope = 1;
1.1 kristaps 974: }
975:
1.40 schwarze 976: if (DELIM_NONE == d)
1.1 kristaps 977: cnt++;
1.66 schwarze 978:
1.80 schwarze 979: if ( ! dword(mdoc, line, la, p, d,
980: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 981: return(0);
1.27 schwarze 982:
983: /*
984: * `Fl' macros have their scope re-opened with each new
985: * word so that the `-' can be added to each one without
986: * having to parse out spaces.
987: */
1.45 schwarze 988: if (scope && MDOC_Fl == tok) {
1.76 schwarze 989: if ( ! rew_elem(mdoc, tok))
1.27 schwarze 990: return(0);
1.45 schwarze 991: scope = 0;
1.27 schwarze 992: }
1.1 kristaps 993: }
994:
1.76 schwarze 995: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 996: return(0);
997:
998: /*
999: * If no elements have been collected and we're allowed to have
1000: * empties (nc), open a scope and close it out. Otherwise,
1001: * raise a warning.
1002: */
1.32 schwarze 1003:
1.1 kristaps 1004: if (nc && 0 == cnt) {
1.76 schwarze 1005: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1006: return(0);
1.76 schwarze 1007: if ( ! rew_last(mdoc, mdoc->last))
1.3 schwarze 1008: return(0);
1009: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 1010: mdoc_argv_free(arg);
1.92 schwarze 1011: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1012: line, ppos, mdoc_macronames[tok]);
1.1 kristaps 1013: }
1014:
1.37 schwarze 1015: if ( ! nl)
1.1 kristaps 1016: return(1);
1.76 schwarze 1017: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1018: }
1019:
1020: static int
1021: blk_full(MACRO_PROT_ARGS)
1022: {
1.73 schwarze 1023: int la, nl, nparsed;
1.1 kristaps 1024: struct mdoc_arg *arg;
1.32 schwarze 1025: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 1026: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 1027: struct mdoc_node *n;
1.46 schwarze 1028: enum mdoc_type mtt;
1.36 schwarze 1029: enum mdoct ntok;
1.37 schwarze 1030: enum margserr ac, lac;
1.36 schwarze 1031: enum margverr av;
1.1 kristaps 1032: char *p;
1033:
1.76 schwarze 1034: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 1035:
1036: /* Skip items outside lists. */
1037:
1038: if (tok == MDOC_It) {
1039: for (n = mdoc->last; n; n = n->parent)
1040: if (n->tok == MDOC_Bl)
1041: break;
1042: if (n == NULL) {
1043: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1044: line, ppos, "It %s", buf + *pos);
1045: if ( ! mdoc_elem_alloc(mdoc, line, ppos,
1046: MDOC_br, NULL))
1047: return(0);
1048: return(rew_elem(mdoc, MDOC_br));
1049: }
1050: }
1.43 schwarze 1051:
1.32 schwarze 1052: /* Close out prior implicit scope. */
1.12 schwarze 1053:
1.1 kristaps 1054: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.76 schwarze 1055: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 1056: return(0);
1.76 schwarze 1057: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1058: return(0);
1059: }
1060:
1.32 schwarze 1061: /*
1.68 schwarze 1062: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1063: * macro openings. Implicit ones first close out prior scope
1064: * (seen above). Delay opening the head until necessary to
1065: * allow leading punctuation to print. Special consideration
1066: * for `It -column', which has phrase-part syntax instead of
1067: * regular child nodes.
1068: */
1069:
1.1 kristaps 1070: for (arg = NULL;; ) {
1.32 schwarze 1071: la = *pos;
1.76 schwarze 1072: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1073:
1.36 schwarze 1074: if (ARGV_WORD == av) {
1.32 schwarze 1075: *pos = la;
1.1 kristaps 1076: break;
1.88 schwarze 1077: }
1.1 kristaps 1078:
1.36 schwarze 1079: if (ARGV_EOLN == av)
1.1 kristaps 1080: break;
1.36 schwarze 1081: if (ARGV_ARG == av)
1.1 kristaps 1082: continue;
1083:
1084: mdoc_argv_free(arg);
1085: return(0);
1086: }
1087:
1.76 schwarze 1088: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1089: return(0);
1090:
1.34 schwarze 1091: head = body = NULL;
1.1 kristaps 1092:
1.32 schwarze 1093: /*
1.73 schwarze 1094: * Exception: Heads of `It' macros in `-diag' lists are not
1095: * parsed, even though `It' macros in general are parsed.
1096: */
1097: nparsed = MDOC_It == tok &&
1.88 schwarze 1098: MDOC_Bl == mdoc->last->parent->tok &&
1099: LIST_diag == mdoc->last->parent->norm->Bl.type;
1.73 schwarze 1100:
1101: /*
1.32 schwarze 1102: * The `Nd' macro has all arguments in its body: it's a hybrid
1103: * of block partial-explicit and full-implicit. Stupid.
1104: */
1.12 schwarze 1105:
1.32 schwarze 1106: if (MDOC_Nd == tok) {
1.76 schwarze 1107: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.32 schwarze 1108: return(0);
1.76 schwarze 1109: head = mdoc->last;
1110: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.12 schwarze 1111: return(0);
1.76 schwarze 1112: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.12 schwarze 1113: return(0);
1.76 schwarze 1114: body = mdoc->last;
1.80 schwarze 1115: }
1116:
1117: if (MDOC_Bk == tok)
1118: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1119:
1.37 schwarze 1120: ac = ARGS_ERROR;
1121:
1.41 schwarze 1122: for ( ; ; ) {
1.32 schwarze 1123: la = *pos;
1.46 schwarze 1124: /* Initialise last-phrase-type with ARGS_PEND. */
1125: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.76 schwarze 1126: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.52 schwarze 1127:
1128: if (ARGS_PUNCT == ac)
1129: break;
1.1 kristaps 1130:
1.36 schwarze 1131: if (ARGS_ERROR == ac)
1.1 kristaps 1132: return(0);
1.46 schwarze 1133:
1134: if (ARGS_EOLN == ac) {
1135: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1136: break;
1137: /*
1138: * This is necessary: if the last token on a
1139: * line is a `Ta' or tab, then we'll get
1140: * ARGS_EOLN, so we must be smart enough to
1141: * reopen our scope if the last parse was a
1142: * phrase or partial phrase.
1143: */
1.76 schwarze 1144: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.46 schwarze 1145: return(0);
1.76 schwarze 1146: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.46 schwarze 1147: return(0);
1.76 schwarze 1148: body = mdoc->last;
1.1 kristaps 1149: break;
1.41 schwarze 1150: }
1151:
1.88 schwarze 1152: /*
1.46 schwarze 1153: * Emit leading punctuation (i.e., punctuation before
1154: * the MDOC_HEAD) for non-phrase types.
1155: */
1.32 schwarze 1156:
1.88 schwarze 1157: if (NULL == head &&
1158: ARGS_PEND != ac &&
1159: ARGS_PHRASE != ac &&
1160: ARGS_PPHRASE != ac &&
1161: ARGS_QWORD != ac &&
1162: DELIM_OPEN == mdoc_isdelim(p)) {
1.80 schwarze 1163: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.32 schwarze 1164: return(0);
1165: continue;
1166: }
1167:
1.46 schwarze 1168: /* Open a head if one hasn't been opened. */
1.32 schwarze 1169:
1.46 schwarze 1170: if (NULL == head) {
1.76 schwarze 1171: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1172: return(0);
1.76 schwarze 1173: head = mdoc->last;
1.32 schwarze 1174: }
1175:
1.88 schwarze 1176: if (ARGS_PHRASE == ac ||
1177: ARGS_PEND == ac ||
1178: ARGS_PPHRASE == ac) {
1.46 schwarze 1179: /*
1180: * If we haven't opened a body yet, rewind the
1181: * head; if we have, rewind that instead.
1182: */
1183:
1184: mtt = body ? MDOC_BODY : MDOC_HEAD;
1.76 schwarze 1185: if ( ! rew_sub(mtt, mdoc, tok, line, ppos))
1.46 schwarze 1186: return(0);
1.88 schwarze 1187:
1.46 schwarze 1188: /* Then allocate our body context. */
1189:
1.76 schwarze 1190: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.46 schwarze 1191: return(0);
1.76 schwarze 1192: body = mdoc->last;
1.46 schwarze 1193:
1194: /*
1195: * Process phrases: set whether we're in a
1196: * partial-phrase (this effects line handling)
1197: * then call down into the phrase parser.
1198: */
1199:
1.41 schwarze 1200: if (ARGS_PPHRASE == ac)
1.76 schwarze 1201: mdoc->flags |= MDOC_PPHRASE;
1.46 schwarze 1202: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1.76 schwarze 1203: mdoc->flags |= MDOC_PPHRASE;
1.46 schwarze 1204:
1.76 schwarze 1205: if ( ! phrase(mdoc, line, la, buf))
1.1 kristaps 1206: return(0);
1.46 schwarze 1207:
1.76 schwarze 1208: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1209: continue;
1210: }
1211:
1.88 schwarze 1212: ntok = nparsed || ARGS_QWORD == ac ?
1213: MDOC_MAX : lookup(tok, p);
1.36 schwarze 1214:
1215: if (MDOC_MAX == ntok) {
1.80 schwarze 1216: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1217: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 1218: return(0);
1.36 schwarze 1219: continue;
1.32 schwarze 1220: }
1.36 schwarze 1221:
1.76 schwarze 1222: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.32 schwarze 1223: return(0);
1.36 schwarze 1224: break;
1.32 schwarze 1225: }
1.1 kristaps 1226:
1.32 schwarze 1227: if (NULL == head) {
1.76 schwarze 1228: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1229: return(0);
1.76 schwarze 1230: head = mdoc->last;
1.1 kristaps 1231: }
1.88 schwarze 1232:
1.76 schwarze 1233: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1234: return(0);
1.12 schwarze 1235:
1.34 schwarze 1236: /* If we've already opened our body, exit now. */
1.32 schwarze 1237:
1.34 schwarze 1238: if (NULL != body)
1.46 schwarze 1239: goto out;
1.29 schwarze 1240:
1241: /*
1.34 schwarze 1242: * If there is an open (i.e., unvalidated) sub-block requiring
1243: * explicit close-out, postpone switching the current block from
1244: * head to body until the rew_sub() call closing out that
1245: * sub-block.
1.29 schwarze 1246: */
1.76 schwarze 1247: for (n = mdoc->last; n && n != head; n = n->parent) {
1.88 schwarze 1248: if (MDOC_BLOCK == n->type &&
1249: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1250: ! (MDOC_VALID & n->flags)) {
1.29 schwarze 1251: n->pending = head;
1252: return(1);
1253: }
1254: }
1.54 schwarze 1255:
1.32 schwarze 1256: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1257:
1.76 schwarze 1258: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1259: return(0);
1.76 schwarze 1260: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1261: return(0);
1262:
1.46 schwarze 1263: out:
1.76 schwarze 1264: if ( ! (MDOC_FREECOL & mdoc->flags))
1.46 schwarze 1265: return(1);
1266:
1.76 schwarze 1267: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.46 schwarze 1268: return(0);
1.76 schwarze 1269: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.46 schwarze 1270: return(0);
1271:
1.76 schwarze 1272: mdoc->flags &= ~MDOC_FREECOL;
1.1 kristaps 1273: return(1);
1274: }
1275:
1276: static int
1277: blk_part_imp(MACRO_PROT_ARGS)
1278: {
1.43 schwarze 1279: int la, nl;
1.36 schwarze 1280: enum mdoct ntok;
1281: enum margserr ac;
1.1 kristaps 1282: char *p;
1.32 schwarze 1283: struct mdoc_node *blk; /* saved block context */
1284: struct mdoc_node *body; /* saved body context */
1285: struct mdoc_node *n;
1.1 kristaps 1286:
1.76 schwarze 1287: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1288:
1.32 schwarze 1289: /*
1290: * A macro that spans to the end of the line. This is generally
1291: * (but not necessarily) called as the first macro. The block
1292: * has a head as the immediate child, which is always empty,
1293: * followed by zero or more opening punctuation nodes, then the
1294: * body (which may be empty, depending on the macro), then zero
1295: * or more closing punctuation nodes.
1296: */
1.22 schwarze 1297:
1.76 schwarze 1298: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.22 schwarze 1299: return(0);
1.32 schwarze 1300:
1.76 schwarze 1301: blk = mdoc->last;
1.32 schwarze 1302:
1.76 schwarze 1303: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1304: return(0);
1.76 schwarze 1305: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1306: return(0);
1307:
1.32 schwarze 1308: /*
1309: * Open the body scope "on-demand", that is, after we've
1310: * processed all our the leading delimiters (open parenthesis,
1311: * etc.).
1312: */
1.1 kristaps 1313:
1.32 schwarze 1314: for (body = NULL; ; ) {
1.22 schwarze 1315: la = *pos;
1.76 schwarze 1316: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.32 schwarze 1317:
1.36 schwarze 1318: if (ARGS_ERROR == ac)
1.1 kristaps 1319: return(0);
1.36 schwarze 1320: if (ARGS_EOLN == ac)
1.32 schwarze 1321: break;
1.36 schwarze 1322: if (ARGS_PUNCT == ac)
1.1 kristaps 1323: break;
1324:
1.36 schwarze 1325: if (NULL == body && ARGS_QWORD != ac &&
1.88 schwarze 1326: DELIM_OPEN == mdoc_isdelim(p)) {
1.80 schwarze 1327: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.1 kristaps 1328: return(0);
1329: continue;
1.80 schwarze 1330: }
1.1 kristaps 1331:
1.32 schwarze 1332: if (NULL == body) {
1.76 schwarze 1333: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.32 schwarze 1334: return(0);
1.76 schwarze 1335: body = mdoc->last;
1.32 schwarze 1336: }
1337:
1.36 schwarze 1338: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1339:
1340: if (MDOC_MAX == ntok) {
1.80 schwarze 1341: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1342: MDOC_JOIN & mdoc_macros[tok].flags))
1.32 schwarze 1343: return(0);
1.36 schwarze 1344: continue;
1345: }
1.32 schwarze 1346:
1.76 schwarze 1347: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.32 schwarze 1348: return(0);
1.36 schwarze 1349: break;
1.32 schwarze 1350: }
1351:
1352: /* Clean-ups to leave in a consistent state. */
1353:
1354: if (NULL == body) {
1.76 schwarze 1355: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1356: return(0);
1.76 schwarze 1357: body = mdoc->last;
1.1 kristaps 1358: }
1359:
1.47 schwarze 1360: /*
1361: * If there is an open sub-block requiring explicit close-out,
1362: * postpone closing out the current block
1363: * until the rew_sub() call closing out the sub-block.
1364: */
1.76 schwarze 1365: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1366: n = n->parent) {
1.47 schwarze 1367: if (MDOC_BLOCK == n->type &&
1368: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1369: ! (MDOC_VALID & n->flags)) {
1.76 schwarze 1370: make_pending(n, tok, mdoc, line, ppos);
1371: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.47 schwarze 1372: tok, body, ENDBODY_NOSPACE))
1373: return(0);
1374: return(1);
1375: }
1376: }
1.91 schwarze 1377: assert(n == body);
1.47 schwarze 1378:
1.91 schwarze 1379: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.22 schwarze 1380: return(0);
1.1 kristaps 1381:
1.22 schwarze 1382: /* Standard appending of delimiters. */
1.1 kristaps 1383:
1.76 schwarze 1384: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1385: return(0);
1386:
1.22 schwarze 1387: /* Rewind scope, if applicable. */
1.1 kristaps 1388:
1.91 schwarze 1389: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1390: return(0);
1.74 schwarze 1391:
1392: /* Move trailing .Ns out of scope. */
1393:
1394: for (n = body->child; n && n->next; n = n->next)
1395: /* Do nothing. */ ;
1396: if (n && MDOC_Ns == n->tok)
1.76 schwarze 1397: mdoc_node_relink(mdoc, n);
1.1 kristaps 1398:
1399: return(1);
1400: }
1401:
1402: static int
1403: blk_part_exp(MACRO_PROT_ARGS)
1404: {
1.37 schwarze 1405: int la, nl;
1.36 schwarze 1406: enum margserr ac;
1.32 schwarze 1407: struct mdoc_node *head; /* keep track of head */
1408: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1409: char *p;
1.36 schwarze 1410: enum mdoct ntok;
1.1 kristaps 1411:
1.76 schwarze 1412: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1413:
1.32 schwarze 1414: /*
1415: * The opening of an explicit macro having zero or more leading
1416: * punctuation nodes; a head with optional single element (the
1417: * case of `Eo'); and a body that may be empty.
1418: */
1.22 schwarze 1419:
1.76 schwarze 1420: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.88 schwarze 1421: return(0);
1.22 schwarze 1422:
1.32 schwarze 1423: for (head = body = NULL; ; ) {
1.22 schwarze 1424: la = *pos;
1.76 schwarze 1425: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1426:
1.36 schwarze 1427: if (ARGS_ERROR == ac)
1.1 kristaps 1428: return(0);
1.36 schwarze 1429: if (ARGS_PUNCT == ac)
1.1 kristaps 1430: break;
1.36 schwarze 1431: if (ARGS_EOLN == ac)
1.1 kristaps 1432: break;
1433:
1.32 schwarze 1434: /* Flush out leading punctuation. */
1435:
1.36 schwarze 1436: if (NULL == head && ARGS_QWORD != ac &&
1.88 schwarze 1437: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1438: assert(NULL == body);
1.80 schwarze 1439: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.32 schwarze 1440: return(0);
1441: continue;
1.80 schwarze 1442: }
1.32 schwarze 1443:
1444: if (NULL == head) {
1445: assert(NULL == body);
1.76 schwarze 1446: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1447: return(0);
1.76 schwarze 1448: head = mdoc->last;
1.1 kristaps 1449: }
1450:
1.32 schwarze 1451: /*
1452: * `Eo' gobbles any data into the head, but most other
1453: * macros just immediately close out and begin the body.
1454: */
1455:
1456: if (NULL == body) {
1457: assert(head);
1458: /* No check whether it's a macro! */
1459: if (MDOC_Eo == tok)
1.80 schwarze 1460: if ( ! dword(mdoc, line, la, p, DELIM_MAX, 0))
1.32 schwarze 1461: return(0);
1462:
1.76 schwarze 1463: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1464: return(0);
1.76 schwarze 1465: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1466: return(0);
1.76 schwarze 1467: body = mdoc->last;
1.32 schwarze 1468:
1469: if (MDOC_Eo == tok)
1470: continue;
1471: }
1472:
1473: assert(NULL != head && NULL != body);
1474:
1.36 schwarze 1475: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1476:
1477: if (MDOC_MAX == ntok) {
1.80 schwarze 1478: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1479: MDOC_JOIN & mdoc_macros[tok].flags))
1.32 schwarze 1480: return(0);
1.36 schwarze 1481: continue;
1.1 kristaps 1482: }
1.32 schwarze 1483:
1.76 schwarze 1484: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1485: return(0);
1.36 schwarze 1486: break;
1.1 kristaps 1487: }
1488:
1.32 schwarze 1489: /* Clean-up to leave in a consistent state. */
1490:
1.70 schwarze 1491: if (NULL == head)
1.76 schwarze 1492: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.32 schwarze 1493: return(0);
1.22 schwarze 1494:
1.32 schwarze 1495: if (NULL == body) {
1.76 schwarze 1496: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1497: return(0);
1.76 schwarze 1498: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1499: return(0);
1500: }
1501:
1.22 schwarze 1502: /* Standard appending of delimiters. */
1503:
1.37 schwarze 1504: if ( ! nl)
1.1 kristaps 1505: return(1);
1.76 schwarze 1506: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1507: }
1508:
1509: static int
1510: in_line_argn(MACRO_PROT_ARGS)
1511: {
1.37 schwarze 1512: int la, flushed, j, maxargs, nl;
1.36 schwarze 1513: enum margserr ac;
1514: enum margverr av;
1515: struct mdoc_arg *arg;
1516: char *p;
1517: enum mdoct ntok;
1.1 kristaps 1518:
1.76 schwarze 1519: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1520:
1.32 schwarze 1521: /*
1522: * A line macro that has a fixed number of arguments (maxargs).
1523: * Only open the scope once the first non-leading-punctuation is
1524: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1525: * keep it open until the maximum number of arguments are
1526: * exhausted.
1527: */
1.1 kristaps 1528:
1529: switch (tok) {
1.88 schwarze 1530: case MDOC_Ap:
1.1 kristaps 1531: /* FALLTHROUGH */
1.88 schwarze 1532: case MDOC_No:
1.1 kristaps 1533: /* FALLTHROUGH */
1.88 schwarze 1534: case MDOC_Ns:
1.1 kristaps 1535: /* FALLTHROUGH */
1.88 schwarze 1536: case MDOC_Ux:
1.1 kristaps 1537: maxargs = 0;
1538: break;
1.88 schwarze 1539: case MDOC_Bx:
1.64 schwarze 1540: /* FALLTHROUGH */
1.89 schwarze 1541: case MDOC_Es:
1542: /* FALLTHROUGH */
1.88 schwarze 1543: case MDOC_Xr:
1.28 schwarze 1544: maxargs = 2;
1545: break;
1.1 kristaps 1546: default:
1547: maxargs = 1;
1548: break;
1549: }
1550:
1.32 schwarze 1551: for (arg = NULL; ; ) {
1.22 schwarze 1552: la = *pos;
1.76 schwarze 1553: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1554:
1.36 schwarze 1555: if (ARGV_WORD == av) {
1.22 schwarze 1556: *pos = la;
1.1 kristaps 1557: break;
1.88 schwarze 1558: }
1.1 kristaps 1559:
1.36 schwarze 1560: if (ARGV_EOLN == av)
1.1 kristaps 1561: break;
1.36 schwarze 1562: if (ARGV_ARG == av)
1.1 kristaps 1563: continue;
1564:
1565: mdoc_argv_free(arg);
1566: return(0);
1567: }
1568:
1.32 schwarze 1569: for (flushed = j = 0; ; ) {
1.22 schwarze 1570: la = *pos;
1.76 schwarze 1571: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1572:
1.36 schwarze 1573: if (ARGS_ERROR == ac)
1.1 kristaps 1574: return(0);
1.36 schwarze 1575: if (ARGS_PUNCT == ac)
1.1 kristaps 1576: break;
1.36 schwarze 1577: if (ARGS_EOLN == ac)
1.1 kristaps 1578: break;
1579:
1.88 schwarze 1580: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1581: ARGS_QWORD != ac && 0 == j &&
1582: DELIM_OPEN == mdoc_isdelim(p)) {
1.80 schwarze 1583: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.32 schwarze 1584: return(0);
1585: continue;
1.40 schwarze 1586: } else if (0 == j)
1.90 schwarze 1587: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.32 schwarze 1588: return(0);
1589:
1590: if (j == maxargs && ! flushed) {
1.76 schwarze 1591: if ( ! rew_elem(mdoc, tok))
1.32 schwarze 1592: return(0);
1593: flushed = 1;
1594: }
1595:
1.36 schwarze 1596: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1597:
1598: if (MDOC_MAX != ntok) {
1.76 schwarze 1599: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1600: return(0);
1601: flushed = 1;
1.76 schwarze 1602: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1603: return(0);
1.32 schwarze 1604: j++;
1.1 kristaps 1605: break;
1606: }
1607:
1608: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.88 schwarze 1609: ARGS_QWORD != ac &&
1610: ! flushed &&
1611: DELIM_NONE != mdoc_isdelim(p)) {
1.76 schwarze 1612: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1613: return(0);
1614: flushed = 1;
1.28 schwarze 1615: }
1616:
1.80 schwarze 1617: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1618: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 1619: return(0);
1.32 schwarze 1620: j++;
1.1 kristaps 1621: }
1622:
1.90 schwarze 1623: if (0 == j && ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.32 schwarze 1624: return(0);
1625:
1626: /* Close out in a consistent state. */
1.22 schwarze 1627:
1.76 schwarze 1628: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1629: return(0);
1.37 schwarze 1630: if ( ! nl)
1.1 kristaps 1631: return(1);
1.76 schwarze 1632: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1633: }
1634:
1635: static int
1636: in_line_eoln(MACRO_PROT_ARGS)
1637: {
1.36 schwarze 1638: int la;
1639: enum margserr ac;
1640: enum margverr av;
1641: struct mdoc_arg *arg;
1642: char *p;
1643: enum mdoct ntok;
1.1 kristaps 1644:
1645: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1646:
1.53 schwarze 1647: if (tok == MDOC_Pp)
1.76 schwarze 1648: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.53 schwarze 1649:
1.22 schwarze 1650: /* Parse macro arguments. */
1.1 kristaps 1651:
1.22 schwarze 1652: for (arg = NULL; ; ) {
1.1 kristaps 1653: la = *pos;
1.76 schwarze 1654: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1655:
1.36 schwarze 1656: if (ARGV_WORD == av) {
1.1 kristaps 1657: *pos = la;
1658: break;
1659: }
1.88 schwarze 1660: if (ARGV_EOLN == av)
1.1 kristaps 1661: break;
1.36 schwarze 1662: if (ARGV_ARG == av)
1.1 kristaps 1663: continue;
1664:
1665: mdoc_argv_free(arg);
1666: return(0);
1667: }
1668:
1.22 schwarze 1669: /* Open element scope. */
1670:
1.76 schwarze 1671: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1672: return(0);
1673:
1.22 schwarze 1674: /* Parse argument terms. */
1.1 kristaps 1675:
1676: for (;;) {
1677: la = *pos;
1.76 schwarze 1678: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1679:
1.36 schwarze 1680: if (ARGS_ERROR == ac)
1.1 kristaps 1681: return(0);
1.36 schwarze 1682: if (ARGS_EOLN == ac)
1.1 kristaps 1683: break;
1684:
1.36 schwarze 1685: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1686:
1.36 schwarze 1687: if (MDOC_MAX == ntok) {
1.80 schwarze 1688: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1689: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 1690: return(0);
1.36 schwarze 1691: continue;
1692: }
1.1 kristaps 1693:
1.76 schwarze 1694: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1695: return(0);
1.76 schwarze 1696: return(mdoc_macro(mdoc, ntok, line, la, pos, buf));
1.1 kristaps 1697: }
1698:
1.22 schwarze 1699: /* Close out (no delimiters). */
1700:
1.76 schwarze 1701: return(rew_elem(mdoc, tok));
1.28 schwarze 1702: }
1703:
1704: static int
1705: ctx_synopsis(MACRO_PROT_ARGS)
1706: {
1.37 schwarze 1707: int nl;
1708:
1.76 schwarze 1709: nl = MDOC_NEWLINE & mdoc->flags;
1.28 schwarze 1710:
1711: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.76 schwarze 1712: if ( ! (MDOC_SYNOPSIS & mdoc->flags))
1713: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.28 schwarze 1714:
1715: /* If we're a nested call, same place. */
1.37 schwarze 1716: if ( ! nl)
1.76 schwarze 1717: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.28 schwarze 1718:
1719: /*
1720: * XXX: this will open a block scope; however, if later we end
1721: * up formatting the block scope, then child nodes will inherit
1722: * the formatting. Be careful.
1723: */
1.51 schwarze 1724: if (MDOC_Nm == tok)
1.76 schwarze 1725: return(blk_full(mdoc, tok, line, ppos, pos, buf));
1.51 schwarze 1726: assert(MDOC_Vt == tok);
1.76 schwarze 1727: return(blk_part_imp(mdoc, tok, line, ppos, pos, buf));
1.1 kristaps 1728: }
1729:
1.17 schwarze 1730: /*
1731: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1732: * They're unusual because they're basically free-form text until a
1733: * macro is encountered.
1734: */
1.1 kristaps 1735: static int
1.76 schwarze 1736: phrase(struct mdoc *mdoc, int line, int ppos, char *buf)
1.1 kristaps 1737: {
1.36 schwarze 1738: int la, pos;
1.46 schwarze 1739: enum margserr ac;
1.36 schwarze 1740: enum mdoct ntok;
1741: char *p;
1.1 kristaps 1742:
1.17 schwarze 1743: for (pos = ppos; ; ) {
1744: la = pos;
1.1 kristaps 1745:
1.76 schwarze 1746: ac = mdoc_zargs(mdoc, line, &pos, buf, &p);
1.1 kristaps 1747:
1.46 schwarze 1748: if (ARGS_ERROR == ac)
1.17 schwarze 1749: return(0);
1.46 schwarze 1750: if (ARGS_EOLN == ac)
1.17 schwarze 1751: break;
1.1 kristaps 1752:
1.46 schwarze 1753: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1754:
1.36 schwarze 1755: if (MDOC_MAX == ntok) {
1.80 schwarze 1756: if ( ! dword(mdoc, line, la, p, DELIM_MAX, 1))
1.1 kristaps 1757: return(0);
1.36 schwarze 1758: continue;
1759: }
1.1 kristaps 1760:
1.76 schwarze 1761: if ( ! mdoc_macro(mdoc, ntok, line, la, &pos, buf))
1.1 kristaps 1762: return(0);
1.76 schwarze 1763: return(append_delims(mdoc, line, &pos, buf));
1.1 kristaps 1764: }
1765:
1766: return(1);
1767: }
1.17 schwarze 1768:
1.46 schwarze 1769: static int
1770: phrase_ta(MACRO_PROT_ARGS)
1771: {
1.78 schwarze 1772: struct mdoc_node *n;
1.46 schwarze 1773: int la;
1774: enum mdoct ntok;
1775: enum margserr ac;
1776: char *p;
1777:
1.78 schwarze 1778: /* Make sure we are in a column list or ignore this macro. */
1779: n = mdoc->last;
1780: while (NULL != n && MDOC_Bl != n->tok)
1781: n = n->parent;
1782: if (NULL == n || LIST_column != n->norm->Bl.type) {
1.94 schwarze 1783: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 ! schwarze 1784: line, ppos, "Ta");
1.78 schwarze 1785: return(1);
1786: }
1.46 schwarze 1787:
1.78 schwarze 1788: /* Advance to the next column. */
1.76 schwarze 1789: if ( ! rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos))
1.46 schwarze 1790: return(0);
1.76 schwarze 1791: if ( ! mdoc_body_alloc(mdoc, line, ppos, MDOC_It))
1.46 schwarze 1792: return(0);
1793:
1794: for (;;) {
1795: la = *pos;
1.76 schwarze 1796: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.46 schwarze 1797:
1798: if (ARGS_ERROR == ac)
1799: return(0);
1800: if (ARGS_EOLN == ac)
1801: break;
1802:
1803: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1804:
1805: if (MDOC_MAX == ntok) {
1.80 schwarze 1806: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1807: MDOC_JOIN & mdoc_macros[tok].flags))
1.46 schwarze 1808: return(0);
1809: continue;
1810: }
1811:
1.76 schwarze 1812: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.46 schwarze 1813: return(0);
1.76 schwarze 1814: return(append_delims(mdoc, line, pos, buf));
1.46 schwarze 1815: }
1816:
1817: return(1);
1818: }
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