Annotation of mandoc/mdoc_macro.c, Revision 1.135
1.135 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.134 2014/07/02 11:43:20 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.123 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
1.8 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: *
1.8 kristaps 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: */
1.40 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.106 kristaps 29: #include "mdoc.h"
1.68 kristaps 30: #include "mandoc.h"
1.1 kristaps 31: #include "libmdoc.h"
1.64 kristaps 32: #include "libmandoc.h"
1.1 kristaps 33:
1.84 schwarze 34: enum rew { /* see rew_dohalt() */
35: REWIND_NONE,
36: REWIND_THIS,
37: REWIND_MORE,
1.98 kristaps 38: REWIND_FORCE,
1.84 schwarze 39: REWIND_LATER,
1.91 kristaps 40: REWIND_ERROR
1.51 kristaps 41: };
1.1 kristaps 42:
1.131 schwarze 43: static int blk_full(MACRO_PROT_ARGS);
44: static int blk_exp_close(MACRO_PROT_ARGS);
45: static int blk_part_exp(MACRO_PROT_ARGS);
46: static int blk_part_imp(MACRO_PROT_ARGS);
47: static int ctx_synopsis(MACRO_PROT_ARGS);
48: static int in_line_eoln(MACRO_PROT_ARGS);
49: static int in_line_argn(MACRO_PROT_ARGS);
50: static int in_line(MACRO_PROT_ARGS);
51: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 52:
1.123 schwarze 53: static int dword(struct mdoc *, int, int, const char *,
54: enum mdelim, int);
1.131 schwarze 55: static int append_delims(struct mdoc *,
1.53 kristaps 56: int, int *, char *);
1.58 kristaps 57: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 58: static enum mdoct lookup_raw(const char *);
1.85 schwarze 59: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 60: struct mdoc *, int, int);
1.131 schwarze 61: static int phrase(struct mdoc *, int, int, char *);
62: static enum mdoct rew_alt(enum mdoct);
63: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.53 kristaps 64: const struct mdoc_node *);
1.131 schwarze 65: static int rew_elem(struct mdoc *, enum mdoct);
66: static int rew_last(struct mdoc *,
1.53 kristaps 67: const struct mdoc_node *);
1.131 schwarze 68: static int rew_sub(enum mdoc_type, struct mdoc *,
1.53 kristaps 69: enum mdoct, int, int);
1.1 kristaps 70:
71: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 72: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 73: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
74: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
75: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 76: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
77: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
78: { in_line_eoln, 0 }, /* Pp */
79: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
80: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 81: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 82: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 83: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 84: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
85: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 94: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
96: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 100: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 101: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 102: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
103: { blk_full, MDOC_JOIN }, /* Nd */
104: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 105: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 107: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
108: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 109: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 110: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 111: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 112: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 113: { in_line_eoln, MDOC_JOIN }, /* %A */
114: { in_line_eoln, MDOC_JOIN }, /* %B */
115: { in_line_eoln, MDOC_JOIN }, /* %D */
116: { in_line_eoln, MDOC_JOIN }, /* %I */
117: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 118: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 119: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 120: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 121: { in_line_eoln, MDOC_JOIN }, /* %R */
122: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 123: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 124: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
125: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
128: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 129: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 130: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
131: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
132: { blk_full, MDOC_EXPLICIT }, /* Bf */
133: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
134: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
135: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
138: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 139: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
140: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
141: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
142: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
143: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
144: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
145: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
146: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
148: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 149: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.123 schwarze 150: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_IGNDELIM | MDOC_JOIN }, /* No */
152: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
153: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 154: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
155: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 156: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 158: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 159: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
160: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
161: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
162: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
163: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
164: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
165: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
166: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
167: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
168: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 169: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 170: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
172: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
173: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
174: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.1 kristaps 175: { in_line_eoln, 0 }, /* Sm */
1.123 schwarze 176: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
177: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 178: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 179: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 180: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
181: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 182: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
183: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
184: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
185: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
186: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
187: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
188: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 189: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 190: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 191: { in_line_eoln, 0 }, /* Bt */
192: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 193: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 194: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 195: { in_line, 0 }, /* Lb */
1.123 schwarze 196: { in_line_eoln, 0 }, /* Lp */
197: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
198: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
199: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
200: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
201: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
202: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
203: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
204: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 205: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
206: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 207: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 208: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 209: { in_line_eoln, 0 }, /* br */
210: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 211: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 212: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.130 schwarze 213: { in_line_eoln, 0 }, /* ll */
1.1 kristaps 214: };
215:
216: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
217:
218:
219: /*
220: * This is called at the end of parsing. It must traverse up the tree,
221: * closing out open [implicit] scopes. Obviously, open explicit scopes
222: * are errors.
223: */
224: int
1.119 schwarze 225: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 226: {
227: struct mdoc_node *n;
228:
229: /* Scan for open explicit scopes. */
230:
1.119 schwarze 231: n = MDOC_VALID & mdoc->last->flags ?
1.131 schwarze 232: mdoc->last->parent : mdoc->last;
1.1 kristaps 233:
1.94 schwarze 234: for ( ; n; n = n->parent)
235: if (MDOC_BLOCK == n->type &&
236: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
1.119 schwarze 237: mdoc_nmsg(mdoc, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 238:
1.32 kristaps 239: /* Rewind to the first. */
240:
1.119 schwarze 241: return(rew_last(mdoc, mdoc->first));
1.1 kristaps 242: }
243:
1.32 kristaps 244: /*
245: * Look up a macro from within a subsequent context.
246: */
1.53 kristaps 247: static enum mdoct
1.58 kristaps 248: lookup(enum mdoct from, const char *p)
1.28 kristaps 249: {
250:
251: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
252: return(MDOC_MAX);
1.35 kristaps 253: return(lookup_raw(p));
1.28 kristaps 254: }
255:
1.32 kristaps 256: /*
257: * Lookup a macro following the initial line macro.
258: */
1.53 kristaps 259: static enum mdoct
1.35 kristaps 260: lookup_raw(const char *p)
1.1 kristaps 261: {
1.58 kristaps 262: enum mdoct res;
1.1 kristaps 263:
1.34 kristaps 264: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 265: return(MDOC_MAX);
266: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 267: return(res);
268: return(MDOC_MAX);
269: }
270:
271: static int
1.32 kristaps 272: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 273: {
1.100 kristaps 274: struct mdoc_node *n, *np;
1.1 kristaps 275:
276: assert(to);
277: mdoc->next = MDOC_NEXT_SIBLING;
278:
1.131 schwarze 279:
1.1 kristaps 280: while (mdoc->last != to) {
1.100 kristaps 281: /*
282: * Save the parent here, because we may delete the
1.119 schwarze 283: * mdoc->last node in the post-validation phase and reset
284: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 285: * out to be lost.
286: */
287: np = mdoc->last->parent;
1.1 kristaps 288: if ( ! mdoc_valid_post(mdoc))
289: return(0);
1.99 kristaps 290: n = mdoc->last;
1.100 kristaps 291: mdoc->last = np;
1.1 kristaps 292: assert(mdoc->last);
1.99 kristaps 293: mdoc->last->last = n;
1.1 kristaps 294: }
295:
1.97 kristaps 296: return(mdoc_valid_post(mdoc));
1.1 kristaps 297: }
298:
1.32 kristaps 299: /*
1.84 schwarze 300: * For a block closing macro, return the corresponding opening one.
301: * Otherwise, return the macro itself.
1.32 kristaps 302: */
1.47 kristaps 303: static enum mdoct
304: rew_alt(enum mdoct tok)
1.1 kristaps 305: {
306: switch (tok) {
1.131 schwarze 307: case MDOC_Ac:
1.1 kristaps 308: return(MDOC_Ao);
1.131 schwarze 309: case MDOC_Bc:
1.1 kristaps 310: return(MDOC_Bo);
1.131 schwarze 311: case MDOC_Brc:
1.1 kristaps 312: return(MDOC_Bro);
1.131 schwarze 313: case MDOC_Dc:
1.1 kristaps 314: return(MDOC_Do);
1.131 schwarze 315: case MDOC_Ec:
1.1 kristaps 316: return(MDOC_Eo);
1.131 schwarze 317: case MDOC_Ed:
1.1 kristaps 318: return(MDOC_Bd);
1.131 schwarze 319: case MDOC_Ef:
1.1 kristaps 320: return(MDOC_Bf);
1.131 schwarze 321: case MDOC_Ek:
1.1 kristaps 322: return(MDOC_Bk);
1.131 schwarze 323: case MDOC_El:
1.1 kristaps 324: return(MDOC_Bl);
1.131 schwarze 325: case MDOC_Fc:
1.1 kristaps 326: return(MDOC_Fo);
1.131 schwarze 327: case MDOC_Oc:
1.1 kristaps 328: return(MDOC_Oo);
1.131 schwarze 329: case MDOC_Pc:
1.1 kristaps 330: return(MDOC_Po);
1.131 schwarze 331: case MDOC_Qc:
1.1 kristaps 332: return(MDOC_Qo);
1.131 schwarze 333: case MDOC_Re:
1.1 kristaps 334: return(MDOC_Rs);
1.131 schwarze 335: case MDOC_Sc:
1.1 kristaps 336: return(MDOC_So);
1.131 schwarze 337: case MDOC_Xc:
1.1 kristaps 338: return(MDOC_Xo);
339: default:
1.84 schwarze 340: return(tok);
1.1 kristaps 341: }
342: /* NOTREACHED */
343: }
344:
1.84 schwarze 345: /*
346: * Rewinding to tok, how do we have to handle *p?
347: * REWIND_NONE: *p would delimit tok, but no tok scope is open
348: * inside *p, so there is no need to rewind anything at all.
349: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
350: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 351: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 352: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
353: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 354: */
1.51 kristaps 355: static enum rew
1.131 schwarze 356: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.47 kristaps 357: const struct mdoc_node *p)
1.1 kristaps 358: {
359:
1.86 schwarze 360: /*
361: * No matching token, no delimiting block, no broken block.
362: * This can happen when full implicit macros are called for
363: * the first time but try to rewind their previous
364: * instance anyway.
365: */
1.1 kristaps 366: if (MDOC_ROOT == p->type)
1.84 schwarze 367: return(MDOC_BLOCK == type &&
368: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
369: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 370:
371: /*
1.131 schwarze 372: * When starting to rewind, skip plain text
1.86 schwarze 373: * and nodes that have already been rewound.
374: */
1.84 schwarze 375: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
376: return(REWIND_MORE);
377:
1.86 schwarze 378: /*
379: * The easiest case: Found a matching token.
380: * This applies to both blocks and elements.
381: */
1.84 schwarze 382: tok = rew_alt(tok);
383: if (tok == p->tok)
384: return(p->end ? REWIND_NONE :
385: type == p->type ? REWIND_THIS : REWIND_MORE);
386:
1.86 schwarze 387: /*
388: * While elements do require rewinding for themselves,
389: * they never affect rewinding of other nodes.
390: */
1.84 schwarze 391: if (MDOC_ELEM == p->type)
392: return(REWIND_MORE);
1.1 kristaps 393:
1.86 schwarze 394: /*
395: * Blocks delimited by our target token get REWIND_MORE.
1.131 schwarze 396: * Blocks delimiting our target token get REWIND_NONE.
1.86 schwarze 397: */
1.1 kristaps 398: switch (tok) {
1.131 schwarze 399: case MDOC_Bl:
1.84 schwarze 400: if (MDOC_It == p->tok)
401: return(REWIND_MORE);
1.1 kristaps 402: break;
1.131 schwarze 403: case MDOC_It:
1.1 kristaps 404: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 405: return(REWIND_NONE);
1.1 kristaps 406: break;
1.84 schwarze 407: /*
408: * XXX Badly nested block handling still fails badly
409: * when one block is breaking two blocks of the same type.
410: * This is an incomplete and extremely ugly workaround,
411: * required to let the OpenBSD tree build.
412: */
1.131 schwarze 413: case MDOC_Oo:
1.84 schwarze 414: if (MDOC_Op == p->tok)
415: return(REWIND_MORE);
1.1 kristaps 416: break;
1.131 schwarze 417: case MDOC_Nm:
1.88 schwarze 418: return(REWIND_NONE);
1.131 schwarze 419: case MDOC_Nd:
1.19 kristaps 420: /* FALLTHROUGH */
1.131 schwarze 421: case MDOC_Ss:
1.1 kristaps 422: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 423: return(REWIND_NONE);
1.1 kristaps 424: /* FALLTHROUGH */
1.131 schwarze 425: case MDOC_Sh:
1.84 schwarze 426: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
427: MDOC_Sh == p->tok)
428: return(REWIND_MORE);
1.1 kristaps 429: break;
430: default:
431: break;
432: }
433:
1.86 schwarze 434: /*
435: * Default block rewinding rules.
1.88 schwarze 436: * In particular, always skip block end markers,
437: * and let all blocks rewind Nm children.
1.86 schwarze 438: */
1.88 schwarze 439: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
440: (MDOC_BLOCK == p->type &&
1.86 schwarze 441: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
442: return(REWIND_MORE);
443:
444: /*
1.98 kristaps 445: * By default, closing out full blocks
446: * forces closing of broken explicit blocks,
447: * while closing out partial blocks
448: * allows delayed rewinding by default.
1.86 schwarze 449: */
1.98 kristaps 450: return (&blk_full == mdoc_macros[tok].fp ?
451: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 452: }
453:
454: static int
1.47 kristaps 455: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 456: {
457: struct mdoc_node *n;
458:
459: n = mdoc->last;
460: if (MDOC_ELEM != n->type)
461: n = n->parent;
462: assert(MDOC_ELEM == n->type);
463: assert(tok == n->tok);
464:
465: return(rew_last(mdoc, n));
466: }
467:
1.83 schwarze 468: /*
469: * We are trying to close a block identified by tok,
470: * but the child block *broken is still open.
471: * Thus, postpone closing the tok block
472: * until the rew_sub call closing *broken.
473: */
474: static int
475: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.119 schwarze 476: struct mdoc *mdoc, int line, int ppos)
1.83 schwarze 477: {
478: struct mdoc_node *breaker;
479:
480: /*
481: * Iterate backwards, searching for the block matching tok,
482: * that is, the block breaking the *broken block.
483: */
484: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
485:
486: /*
487: * If the *broken block had already been broken before
488: * and we encounter its breaker, make the tok block
489: * pending on the inner breaker.
490: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
491: * becomes "[A broken=[B [C->B B] tok=A] C]"
492: * and finally "[A [B->A [C->B B] A] C]".
493: */
494: if (breaker == broken->pending) {
495: broken = breaker;
496: continue;
497: }
498:
1.84 schwarze 499: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 500: continue;
501: if (MDOC_BODY == broken->type)
502: broken = broken->parent;
503:
504: /*
505: * Found the breaker.
506: * If another, outer breaker is already pending on
507: * the *broken block, we must not clobber the link
508: * to the outer breaker, but make it pending on the
509: * new, now inner breaker.
510: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
511: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
512: * and finally "[A [B->A [C->B A] B] C]".
513: */
514: if (broken->pending) {
515: struct mdoc_node *taker;
516:
517: /*
518: * If the breaker had also been broken before,
519: * it cannot take on the outer breaker itself,
520: * but must hand it on to its own breakers.
521: * Graphically, this is the following situation:
522: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
523: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
524: */
525: taker = breaker;
526: while (taker->pending)
527: taker = taker->pending;
528: taker->pending = broken->pending;
529: }
530: broken->pending = breaker;
1.134 schwarze 531: mandoc_vmsg(MANDOCERR_BLOCK_NEST, mdoc->parse, line, ppos,
1.131 schwarze 532: "%s breaks %s", mdoc_macronames[tok],
533: mdoc_macronames[broken->tok]);
1.83 schwarze 534: return(1);
535: }
536:
537: /*
538: * Found no matching block for tok.
539: * Are you trying to close a block that is not open?
540: */
541: return(0);
542: }
543:
1.1 kristaps 544: static int
1.131 schwarze 545: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 546: enum mdoct tok, int line, int ppos)
1.1 kristaps 547: {
548: struct mdoc_node *n;
549:
1.119 schwarze 550: n = mdoc->last;
1.84 schwarze 551: while (n) {
552: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 553: case REWIND_NONE:
1.84 schwarze 554: return(1);
1.131 schwarze 555: case REWIND_THIS:
1.124 schwarze 556: n->lastline = line -
557: (MDOC_NEWLINE & mdoc->flags &&
558: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags));
1.84 schwarze 559: break;
1.131 schwarze 560: case REWIND_FORCE:
561: mandoc_vmsg(MANDOCERR_SCOPEBROKEN, mdoc->parse,
562: line, ppos, "%s breaks %s",
563: mdoc_macronames[tok],
564: mdoc_macronames[n->tok]);
1.98 kristaps 565: /* FALLTHROUGH */
1.131 schwarze 566: case REWIND_MORE:
1.124 schwarze 567: n->lastline = line -
568: (MDOC_NEWLINE & mdoc->flags ? 1 : 0);
1.84 schwarze 569: n = n->parent;
570: continue;
1.131 schwarze 571: case REWIND_LATER:
1.119 schwarze 572: if (make_pending(n, tok, mdoc, line, ppos) ||
1.98 kristaps 573: MDOC_BLOCK != t)
574: return(1);
575: /* FALLTHROUGH */
1.131 schwarze 576: case REWIND_ERROR:
1.119 schwarze 577: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_NOSCOPE);
1.98 kristaps 578: return(1);
1.32 kristaps 579: }
1.84 schwarze 580: break;
1.1 kristaps 581: }
582:
583: assert(n);
1.119 schwarze 584: if ( ! rew_last(mdoc, n))
1.47 kristaps 585: return(0);
586:
587: /*
1.83 schwarze 588: * The current block extends an enclosing block.
589: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 590: */
1.83 schwarze 591: while (NULL != (n = n->pending)) {
1.119 schwarze 592: if ( ! rew_last(mdoc, n))
1.47 kristaps 593: return(0);
1.83 schwarze 594: if (MDOC_HEAD == n->type &&
1.119 schwarze 595: ! mdoc_body_alloc(mdoc, n->line, n->pos, n->tok))
1.47 kristaps 596: return(0);
597: }
598:
599: return(1);
1.1 kristaps 600: }
601:
1.105 kristaps 602: /*
603: * Allocate a word and check whether it's punctuation or not.
604: * Punctuation consists of those tokens found in mdoc_isdelim().
605: */
606: static int
1.123 schwarze 607: dword(struct mdoc *mdoc, int line, int col, const char *p,
608: enum mdelim d, int may_append)
1.105 kristaps 609: {
1.131 schwarze 610:
1.105 kristaps 611: if (DELIM_MAX == d)
612: d = mdoc_isdelim(p);
613:
1.123 schwarze 614: if (may_append &&
615: ! ((MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF) & mdoc->flags) &&
616: DELIM_NONE == d && MDOC_TEXT == mdoc->last->type &&
617: DELIM_NONE == mdoc_isdelim(mdoc->last->string)) {
618: mdoc_word_append(mdoc, p);
619: return(1);
620: }
621:
1.119 schwarze 622: if ( ! mdoc_word_alloc(mdoc, line, col, p))
1.105 kristaps 623: return(0);
624:
625: if (DELIM_OPEN == d)
1.119 schwarze 626: mdoc->last->flags |= MDOC_DELIMO;
1.108 schwarze 627:
628: /*
629: * Closing delimiters only suppress the preceding space
630: * when they follow something, not when they start a new
631: * block or element, and not when they follow `No'.
632: *
633: * XXX Explicitly special-casing MDOC_No here feels
634: * like a layering violation. Find a better way
635: * and solve this in the code related to `No'!
636: */
637:
1.119 schwarze 638: else if (DELIM_CLOSE == d && mdoc->last->prev &&
1.131 schwarze 639: mdoc->last->prev->tok != MDOC_No &&
640: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 641: mdoc->last->flags |= MDOC_DELIMC;
1.105 kristaps 642:
643: return(1);
644: }
1.1 kristaps 645:
646: static int
1.119 schwarze 647: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 648: {
1.66 kristaps 649: int la;
1.55 kristaps 650: enum margserr ac;
1.1 kristaps 651: char *p;
652:
1.66 kristaps 653: if ('\0' == buf[*pos])
1.1 kristaps 654: return(1);
655:
656: for (;;) {
1.66 kristaps 657: la = *pos;
1.119 schwarze 658: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.1 kristaps 659:
1.53 kristaps 660: if (ARGS_ERROR == ac)
1.1 kristaps 661: return(0);
1.53 kristaps 662: else if (ARGS_EOLN == ac)
1.1 kristaps 663: break;
1.66 kristaps 664:
1.123 schwarze 665: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 666:
667: /*
668: * If we encounter end-of-sentence symbols, then trigger
669: * the double-space.
670: *
1.109 kristaps 671: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 672: * the last symbol, such that `. )' will cause the
673: * correct double-spacing. However, (1) groff isn't
674: * smart enough to do this and (2) it would require
675: * knowing which symbols break this behaviour, for
1.109 kristaps 676: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 677: */
1.127 schwarze 678: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 679: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 680: }
681:
682: return(1);
683: }
684:
685: /*
1.131 schwarze 686: * Close out block partial/full explicit.
1.1 kristaps 687: */
688: static int
689: blk_exp_close(MACRO_PROT_ARGS)
690: {
1.83 schwarze 691: struct mdoc_node *body; /* Our own body. */
692: struct mdoc_node *later; /* A sub-block starting later. */
693: struct mdoc_node *n; /* For searching backwards. */
694:
1.131 schwarze 695: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 696: enum margserr ac;
1.83 schwarze 697: enum mdoct atok, ntok;
1.1 kristaps 698: char *p;
699:
1.119 schwarze 700: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 701:
1.1 kristaps 702: switch (tok) {
1.131 schwarze 703: case MDOC_Ec:
1.1 kristaps 704: maxargs = 1;
705: break;
1.131 schwarze 706: case MDOC_Ek:
1.125 schwarze 707: mdoc->flags &= ~MDOC_KEEP;
1.1 kristaps 708: default:
709: maxargs = 0;
710: break;
711: }
712:
1.83 schwarze 713: /*
714: * Search backwards for beginnings of blocks,
715: * both of our own and of pending sub-blocks.
716: */
717: atok = rew_alt(tok);
718: body = later = NULL;
1.119 schwarze 719: for (n = mdoc->last; n; n = n->parent) {
1.83 schwarze 720: if (MDOC_VALID & n->flags)
721: continue;
722:
723: /* Remember the start of our own body. */
724: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 725: if (ENDBODY_NOT == n->end)
1.83 schwarze 726: body = n;
727: continue;
728: }
729:
1.88 schwarze 730: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 731: continue;
732: if (atok == n->tok) {
733: assert(body);
734:
735: /*
736: * Found the start of our own block.
737: * When there is no pending sub block,
738: * just proceed to closing out.
739: */
740: if (NULL == later)
741: break;
742:
1.131 schwarze 743: /*
1.83 schwarze 744: * When there is a pending sub block,
745: * postpone closing out the current block
746: * until the rew_sub() closing out the sub-block.
747: */
1.119 schwarze 748: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 749:
750: /*
751: * Mark the place where the formatting - but not
752: * the scope - of the current block ends.
753: */
1.119 schwarze 754: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.83 schwarze 755: atok, body, ENDBODY_SPACE))
756: return(0);
757: break;
758: }
759:
760: /*
761: * When finding an open sub block, remember the last
762: * open explicit block, or, in case there are only
763: * implicit ones, the first open implicit block.
764: */
765: if (later &&
766: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
767: continue;
1.118 schwarze 768: if (MDOC_It != n->tok)
1.83 schwarze 769: later = n;
770: }
771:
1.1 kristaps 772: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 773: /* FIXME: do this in validate */
1.131 schwarze 774: if (buf[*pos])
1.119 schwarze 775: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_ARGSLOST);
1.22 kristaps 776:
1.119 schwarze 777: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.22 kristaps 778: return(0);
1.119 schwarze 779: return(rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos));
1.1 kristaps 780: }
781:
1.119 schwarze 782: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 783: return(0);
784:
1.131 schwarze 785: if (NULL == later && maxargs > 0)
1.119 schwarze 786: if ( ! mdoc_tail_alloc(mdoc, line, ppos, rew_alt(tok)))
1.1 kristaps 787: return(0);
788:
1.27 kristaps 789: for (flushed = j = 0; ; j++) {
1.1 kristaps 790: lastarg = *pos;
791:
792: if (j == maxargs && ! flushed) {
1.119 schwarze 793: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 794: return(0);
795: flushed = 1;
796: }
797:
1.119 schwarze 798: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 799:
1.53 kristaps 800: if (ARGS_ERROR == ac)
1.1 kristaps 801: return(0);
1.53 kristaps 802: if (ARGS_PUNCT == ac)
1.1 kristaps 803: break;
1.53 kristaps 804: if (ARGS_EOLN == ac)
1.1 kristaps 805: break;
806:
1.54 kristaps 807: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
808:
809: if (MDOC_MAX == ntok) {
1.123 schwarze 810: if ( ! dword(mdoc, line, lastarg, p, DELIM_MAX,
811: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 812: return(0);
1.54 kristaps 813: continue;
814: }
1.1 kristaps 815:
1.54 kristaps 816: if ( ! flushed) {
1.119 schwarze 817: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.54 kristaps 818: return(0);
819: flushed = 1;
820: }
1.122 schwarze 821:
822: mdoc->flags &= ~MDOC_NEWLINE;
823:
1.119 schwarze 824: if ( ! mdoc_macro(mdoc, ntok, line, lastarg, pos, buf))
1.1 kristaps 825: return(0);
1.54 kristaps 826: break;
1.1 kristaps 827: }
828:
1.119 schwarze 829: if ( ! flushed && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 830: return(0);
831:
1.60 kristaps 832: if ( ! nl)
1.1 kristaps 833: return(1);
1.119 schwarze 834: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 835: }
836:
837: static int
838: in_line(MACRO_PROT_ARGS)
839: {
1.70 kristaps 840: int la, scope, cnt, nc, nl;
1.56 kristaps 841: enum margverr av;
1.53 kristaps 842: enum mdoct ntok;
1.55 kristaps 843: enum margserr ac;
1.67 schwarze 844: enum mdelim d;
1.53 kristaps 845: struct mdoc_arg *arg;
846: char *p;
1.1 kristaps 847:
1.119 schwarze 848: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 849:
1.4 kristaps 850: /*
851: * Whether we allow ignored elements (those without content,
852: * usually because of reserved words) to squeak by.
853: */
1.45 kristaps 854:
1.4 kristaps 855: switch (tok) {
1.131 schwarze 856: case MDOC_An:
1.26 kristaps 857: /* FALLTHROUGH */
1.131 schwarze 858: case MDOC_Ar:
1.4 kristaps 859: /* FALLTHROUGH */
1.131 schwarze 860: case MDOC_Fl:
1.4 kristaps 861: /* FALLTHROUGH */
1.131 schwarze 862: case MDOC_Mt:
1.12 kristaps 863: /* FALLTHROUGH */
1.131 schwarze 864: case MDOC_Nm:
1.26 kristaps 865: /* FALLTHROUGH */
1.131 schwarze 866: case MDOC_Pa:
1.4 kristaps 867: nc = 1;
868: break;
869: default:
870: nc = 0;
871: break;
872: }
873:
1.27 kristaps 874: for (arg = NULL;; ) {
1.1 kristaps 875: la = *pos;
1.119 schwarze 876: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 877:
1.56 kristaps 878: if (ARGV_WORD == av) {
1.1 kristaps 879: *pos = la;
880: break;
1.131 schwarze 881: }
1.56 kristaps 882: if (ARGV_EOLN == av)
1.1 kristaps 883: break;
1.56 kristaps 884: if (ARGV_ARG == av)
1.1 kristaps 885: continue;
886:
887: mdoc_argv_free(arg);
888: return(0);
889: }
890:
1.70 kristaps 891: for (cnt = scope = 0;; ) {
1.1 kristaps 892: la = *pos;
1.119 schwarze 893: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 894:
1.53 kristaps 895: if (ARGS_ERROR == ac)
1.1 kristaps 896: return(0);
1.53 kristaps 897: if (ARGS_EOLN == ac)
1.1 kristaps 898: break;
1.53 kristaps 899: if (ARGS_PUNCT == ac)
1.1 kristaps 900: break;
901:
1.53 kristaps 902: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 903:
1.131 schwarze 904: /*
1.4 kristaps 905: * In this case, we've located a submacro and must
906: * execute it. Close out scope, if open. If no
907: * elements have been generated, either create one (nc)
908: * or raise a warning.
909: */
1.1 kristaps 910:
1.53 kristaps 911: if (MDOC_MAX != ntok) {
1.119 schwarze 912: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 913: return(0);
1.4 kristaps 914: if (nc && 0 == cnt) {
1.131 schwarze 915: if ( ! mdoc_elem_alloc(mdoc,
916: line, ppos, tok, arg))
1.3 kristaps 917: return(0);
1.119 schwarze 918: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 919: return(0);
1.7 kristaps 920: } else if ( ! nc && 0 == cnt) {
921: mdoc_argv_free(arg);
1.135 ! schwarze 922: mandoc_msg(MANDOCERR_MACRO_EMPTY,
! 923: mdoc->parse, line, ppos,
! 924: mdoc_macronames[tok]);
1.7 kristaps 925: }
1.103 kristaps 926:
1.119 schwarze 927: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 928: return(0);
1.60 kristaps 929: if ( ! nl)
1.1 kristaps 930: return(1);
1.119 schwarze 931: return(append_delims(mdoc, line, pos, buf));
1.131 schwarze 932: }
1.1 kristaps 933:
1.131 schwarze 934: /*
1.4 kristaps 935: * Non-quote-enclosed punctuation. Set up our scope, if
936: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 937: * the word.
1.4 kristaps 938: */
1.1 kristaps 939:
1.105 kristaps 940: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 941:
1.70 kristaps 942: if (DELIM_NONE != d) {
943: /*
944: * If we encounter closing punctuation, no word
945: * has been omitted, no scope is open, and we're
946: * allowed to have an empty element, then start
947: * a new scope. `Ar', `Fl', and `Li', only do
948: * this once per invocation. There may be more
949: * of these (all of them?).
950: */
1.131 schwarze 951: if (0 == cnt && (nc || MDOC_Li == tok) &&
952: DELIM_CLOSE == d && ! scope) {
953: if ( ! mdoc_elem_alloc(mdoc,
954: line, ppos, tok, arg))
1.70 kristaps 955: return(0);
1.131 schwarze 956: if (MDOC_Ar == tok || MDOC_Li == tok ||
957: MDOC_Fl == tok)
1.70 kristaps 958: cnt++;
959: scope = 1;
960: }
961: /*
962: * Close out our scope, if one is open, before
963: * any punctuation.
964: */
1.119 schwarze 965: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 966: return(0);
1.70 kristaps 967: scope = 0;
968: } else if ( ! scope) {
1.119 schwarze 969: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 970: return(0);
1.70 kristaps 971: scope = 1;
1.1 kristaps 972: }
973:
1.67 schwarze 974: if (DELIM_NONE == d)
1.3 kristaps 975: cnt++;
1.105 kristaps 976:
1.123 schwarze 977: if ( ! dword(mdoc, line, la, p, d,
978: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 979: return(0);
1.39 kristaps 980:
981: /*
982: * `Fl' macros have their scope re-opened with each new
983: * word so that the `-' can be added to each one without
984: * having to parse out spaces.
985: */
1.70 kristaps 986: if (scope && MDOC_Fl == tok) {
1.119 schwarze 987: if ( ! rew_elem(mdoc, tok))
1.39 kristaps 988: return(0);
1.70 kristaps 989: scope = 0;
1.39 kristaps 990: }
1.1 kristaps 991: }
992:
1.119 schwarze 993: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 994: return(0);
1.4 kristaps 995:
996: /*
997: * If no elements have been collected and we're allowed to have
998: * empties (nc), open a scope and close it out. Otherwise,
999: * raise a warning.
1000: */
1.45 kristaps 1001:
1.4 kristaps 1002: if (nc && 0 == cnt) {
1.119 schwarze 1003: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.3 kristaps 1004: return(0);
1.119 schwarze 1005: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 1006: return(0);
1.7 kristaps 1007: } else if ( ! nc && 0 == cnt) {
1008: mdoc_argv_free(arg);
1.135 ! schwarze 1009: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
! 1010: line, ppos, mdoc_macronames[tok]);
1.7 kristaps 1011: }
1.4 kristaps 1012:
1.60 kristaps 1013: if ( ! nl)
1.1 kristaps 1014: return(1);
1.119 schwarze 1015: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1016: }
1017:
1018: static int
1019: blk_full(MACRO_PROT_ARGS)
1020: {
1.114 kristaps 1021: int la, nl, nparsed;
1.1 kristaps 1022: struct mdoc_arg *arg;
1.45 kristaps 1023: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 1024: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 1025: struct mdoc_node *n;
1.74 kristaps 1026: enum mdoc_type mtt;
1.53 kristaps 1027: enum mdoct ntok;
1.59 kristaps 1028: enum margserr ac, lac;
1.56 kristaps 1029: enum margverr av;
1.1 kristaps 1030: char *p;
1031:
1.119 schwarze 1032: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1033:
1.45 kristaps 1034: /* Close out prior implicit scope. */
1.19 kristaps 1035:
1.1 kristaps 1036: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.119 schwarze 1037: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 1038: return(0);
1.119 schwarze 1039: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1040: return(0);
1041: }
1042:
1.45 kristaps 1043: /*
1.109 kristaps 1044: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1045: * macro openings. Implicit ones first close out prior scope
1046: * (seen above). Delay opening the head until necessary to
1047: * allow leading punctuation to print. Special consideration
1048: * for `It -column', which has phrase-part syntax instead of
1049: * regular child nodes.
1050: */
1051:
1.1 kristaps 1052: for (arg = NULL;; ) {
1.45 kristaps 1053: la = *pos;
1.119 schwarze 1054: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1055:
1.56 kristaps 1056: if (ARGV_WORD == av) {
1.45 kristaps 1057: *pos = la;
1.1 kristaps 1058: break;
1.131 schwarze 1059: }
1.1 kristaps 1060:
1.56 kristaps 1061: if (ARGV_EOLN == av)
1.1 kristaps 1062: break;
1.56 kristaps 1063: if (ARGV_ARG == av)
1.1 kristaps 1064: continue;
1065:
1066: mdoc_argv_free(arg);
1067: return(0);
1068: }
1069:
1.119 schwarze 1070: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1071: return(0);
1072:
1.49 kristaps 1073: head = body = NULL;
1.115 schwarze 1074:
1075: /*
1076: * Exception: Heads of `It' macros in `-diag' lists are not
1077: * parsed, even though `It' macros in general are parsed.
1078: */
1079: nparsed = MDOC_It == tok &&
1.131 schwarze 1080: MDOC_Bl == mdoc->last->parent->tok &&
1081: LIST_diag == mdoc->last->parent->norm->Bl.type;
1.1 kristaps 1082:
1.45 kristaps 1083: /*
1084: * The `Nd' macro has all arguments in its body: it's a hybrid
1085: * of block partial-explicit and full-implicit. Stupid.
1086: */
1.19 kristaps 1087:
1.45 kristaps 1088: if (MDOC_Nd == tok) {
1.119 schwarze 1089: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1090: return(0);
1.119 schwarze 1091: head = mdoc->last;
1092: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.19 kristaps 1093: return(0);
1.119 schwarze 1094: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.19 kristaps 1095: return(0);
1.119 schwarze 1096: body = mdoc->last;
1.123 schwarze 1097: }
1098:
1099: if (MDOC_Bk == tok)
1100: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1101:
1.59 kristaps 1102: ac = ARGS_ERROR;
1103:
1.62 kristaps 1104: for ( ; ; ) {
1.45 kristaps 1105: la = *pos;
1.75 kristaps 1106: /* Initialise last-phrase-type with ARGS_PEND. */
1107: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.119 schwarze 1108: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.89 schwarze 1109:
1110: if (ARGS_PUNCT == ac)
1111: break;
1.1 kristaps 1112:
1.53 kristaps 1113: if (ARGS_ERROR == ac)
1.1 kristaps 1114: return(0);
1.75 kristaps 1115:
1116: if (ARGS_EOLN == ac) {
1117: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1118: break;
1119: /*
1120: * This is necessary: if the last token on a
1121: * line is a `Ta' or tab, then we'll get
1122: * ARGS_EOLN, so we must be smart enough to
1123: * reopen our scope if the last parse was a
1124: * phrase or partial phrase.
1125: */
1.119 schwarze 1126: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.75 kristaps 1127: return(0);
1.119 schwarze 1128: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.75 kristaps 1129: return(0);
1.119 schwarze 1130: body = mdoc->last;
1.1 kristaps 1131: break;
1.75 kristaps 1132: }
1.45 kristaps 1133:
1.131 schwarze 1134: /*
1.73 kristaps 1135: * Emit leading punctuation (i.e., punctuation before
1136: * the MDOC_HEAD) for non-phrase types.
1137: */
1.45 kristaps 1138:
1.131 schwarze 1139: if (NULL == head &&
1140: ARGS_PEND != ac &&
1141: ARGS_PHRASE != ac &&
1142: ARGS_PPHRASE != ac &&
1143: ARGS_QWORD != ac &&
1144: DELIM_OPEN == mdoc_isdelim(p)) {
1.123 schwarze 1145: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.45 kristaps 1146: return(0);
1147: continue;
1148: }
1149:
1.74 kristaps 1150: /* Open a head if one hasn't been opened. */
1.45 kristaps 1151:
1.74 kristaps 1152: if (NULL == head) {
1.119 schwarze 1153: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1154: return(0);
1.119 schwarze 1155: head = mdoc->last;
1.45 kristaps 1156: }
1157:
1.131 schwarze 1158: if (ARGS_PHRASE == ac ||
1159: ARGS_PEND == ac ||
1160: ARGS_PPHRASE == ac) {
1.73 kristaps 1161: /*
1.74 kristaps 1162: * If we haven't opened a body yet, rewind the
1163: * head; if we have, rewind that instead.
1164: */
1165:
1166: mtt = body ? MDOC_BODY : MDOC_HEAD;
1.119 schwarze 1167: if ( ! rew_sub(mtt, mdoc, tok, line, ppos))
1.74 kristaps 1168: return(0);
1.131 schwarze 1169:
1.74 kristaps 1170: /* Then allocate our body context. */
1171:
1.119 schwarze 1172: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.74 kristaps 1173: return(0);
1.119 schwarze 1174: body = mdoc->last;
1.74 kristaps 1175:
1176: /*
1.73 kristaps 1177: * Process phrases: set whether we're in a
1178: * partial-phrase (this effects line handling)
1179: * then call down into the phrase parser.
1180: */
1.74 kristaps 1181:
1.65 kristaps 1182: if (ARGS_PPHRASE == ac)
1.119 schwarze 1183: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1184: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1.119 schwarze 1185: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1186:
1.119 schwarze 1187: if ( ! phrase(mdoc, line, la, buf))
1.1 kristaps 1188: return(0);
1.71 kristaps 1189:
1.119 schwarze 1190: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1191: continue;
1192: }
1193:
1.131 schwarze 1194: ntok = nparsed || ARGS_QWORD == ac ?
1195: MDOC_MAX : lookup(tok, p);
1.54 kristaps 1196:
1197: if (MDOC_MAX == ntok) {
1.123 schwarze 1198: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1199: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 1200: return(0);
1.53 kristaps 1201: continue;
1.45 kristaps 1202: }
1.53 kristaps 1203:
1.119 schwarze 1204: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.45 kristaps 1205: return(0);
1.53 kristaps 1206: break;
1.45 kristaps 1207: }
1.1 kristaps 1208:
1.45 kristaps 1209: if (NULL == head) {
1.119 schwarze 1210: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1211: return(0);
1.119 schwarze 1212: head = mdoc->last;
1.1 kristaps 1213: }
1.131 schwarze 1214:
1.119 schwarze 1215: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1216: return(0);
1.19 kristaps 1217:
1.49 kristaps 1218: /* If we've already opened our body, exit now. */
1.45 kristaps 1219:
1.49 kristaps 1220: if (NULL != body)
1.77 kristaps 1221: goto out;
1.19 kristaps 1222:
1.47 kristaps 1223: /*
1.49 kristaps 1224: * If there is an open (i.e., unvalidated) sub-block requiring
1225: * explicit close-out, postpone switching the current block from
1226: * head to body until the rew_sub() call closing out that
1227: * sub-block.
1.47 kristaps 1228: */
1.119 schwarze 1229: for (n = mdoc->last; n && n != head; n = n->parent) {
1.131 schwarze 1230: if (MDOC_BLOCK == n->type &&
1231: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1232: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1233: n->pending = head;
1234: return(1);
1235: }
1236: }
1237:
1.45 kristaps 1238: /* Close out scopes to remain in a consistent state. */
1239:
1.119 schwarze 1240: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1241: return(0);
1.119 schwarze 1242: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1243: return(0);
1244:
1.77 kristaps 1245: out:
1.119 schwarze 1246: if ( ! (MDOC_FREECOL & mdoc->flags))
1.77 kristaps 1247: return(1);
1248:
1.119 schwarze 1249: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.77 kristaps 1250: return(0);
1.119 schwarze 1251: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.77 kristaps 1252: return(0);
1253:
1.119 schwarze 1254: mdoc->flags &= ~MDOC_FREECOL;
1.1 kristaps 1255: return(1);
1256: }
1257:
1258: static int
1259: blk_part_imp(MACRO_PROT_ARGS)
1260: {
1.63 kristaps 1261: int la, nl;
1.53 kristaps 1262: enum mdoct ntok;
1.55 kristaps 1263: enum margserr ac;
1.1 kristaps 1264: char *p;
1.43 kristaps 1265: struct mdoc_node *blk; /* saved block context */
1266: struct mdoc_node *body; /* saved body context */
1267: struct mdoc_node *n;
1.1 kristaps 1268:
1.119 schwarze 1269: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1270:
1.43 kristaps 1271: /*
1272: * A macro that spans to the end of the line. This is generally
1273: * (but not necessarily) called as the first macro. The block
1274: * has a head as the immediate child, which is always empty,
1275: * followed by zero or more opening punctuation nodes, then the
1276: * body (which may be empty, depending on the macro), then zero
1277: * or more closing punctuation nodes.
1278: */
1.32 kristaps 1279:
1.119 schwarze 1280: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.32 kristaps 1281: return(0);
1.43 kristaps 1282:
1.119 schwarze 1283: blk = mdoc->last;
1.43 kristaps 1284:
1.119 schwarze 1285: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1286: return(0);
1.119 schwarze 1287: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1288: return(0);
1289:
1.43 kristaps 1290: /*
1291: * Open the body scope "on-demand", that is, after we've
1292: * processed all our the leading delimiters (open parenthesis,
1293: * etc.).
1294: */
1.1 kristaps 1295:
1.43 kristaps 1296: for (body = NULL; ; ) {
1.32 kristaps 1297: la = *pos;
1.119 schwarze 1298: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.43 kristaps 1299:
1.53 kristaps 1300: if (ARGS_ERROR == ac)
1.1 kristaps 1301: return(0);
1.53 kristaps 1302: if (ARGS_EOLN == ac)
1.43 kristaps 1303: break;
1.53 kristaps 1304: if (ARGS_PUNCT == ac)
1.1 kristaps 1305: break;
1306:
1.53 kristaps 1307: if (NULL == body && ARGS_QWORD != ac &&
1.131 schwarze 1308: DELIM_OPEN == mdoc_isdelim(p)) {
1.123 schwarze 1309: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.1 kristaps 1310: return(0);
1311: continue;
1.123 schwarze 1312: }
1.1 kristaps 1313:
1.43 kristaps 1314: if (NULL == body) {
1.119 schwarze 1315: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1316: return(0);
1.119 schwarze 1317: body = mdoc->last;
1.43 kristaps 1318: }
1319:
1.54 kristaps 1320: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1321:
1322: if (MDOC_MAX == ntok) {
1.123 schwarze 1323: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1324: MDOC_JOIN & mdoc_macros[tok].flags))
1.43 kristaps 1325: return(0);
1.53 kristaps 1326: continue;
1327: }
1.43 kristaps 1328:
1.119 schwarze 1329: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1330: return(0);
1.53 kristaps 1331: break;
1.1 kristaps 1332: }
1333:
1.43 kristaps 1334: /* Clean-ups to leave in a consistent state. */
1335:
1.44 kristaps 1336: if (NULL == body) {
1.119 schwarze 1337: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.44 kristaps 1338: return(0);
1.119 schwarze 1339: body = mdoc->last;
1.44 kristaps 1340: }
1.43 kristaps 1341:
1.83 schwarze 1342: /*
1343: * If there is an open sub-block requiring explicit close-out,
1344: * postpone closing out the current block
1345: * until the rew_sub() call closing out the sub-block.
1346: */
1.119 schwarze 1347: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1348: n = n->parent) {
1.83 schwarze 1349: if (MDOC_BLOCK == n->type &&
1350: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1351: ! (MDOC_VALID & n->flags)) {
1.119 schwarze 1352: make_pending(n, tok, mdoc, line, ppos);
1353: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.83 schwarze 1354: tok, body, ENDBODY_NOSPACE))
1355: return(0);
1356: return(1);
1357: }
1358: }
1.134 schwarze 1359: assert(n == body);
1.83 schwarze 1360:
1.134 schwarze 1361: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.32 kristaps 1362: return(0);
1.1 kristaps 1363:
1.32 kristaps 1364: /* Standard appending of delimiters. */
1.1 kristaps 1365:
1.119 schwarze 1366: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1367: return(0);
1368:
1.32 kristaps 1369: /* Rewind scope, if applicable. */
1.1 kristaps 1370:
1.134 schwarze 1371: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1372: return(0);
1.117 schwarze 1373:
1374: /* Move trailing .Ns out of scope. */
1375:
1376: for (n = body->child; n && n->next; n = n->next)
1377: /* Do nothing. */ ;
1378: if (n && MDOC_Ns == n->tok)
1.119 schwarze 1379: mdoc_node_relink(mdoc, n);
1.1 kristaps 1380:
1381: return(1);
1382: }
1383:
1384: static int
1385: blk_part_exp(MACRO_PROT_ARGS)
1386: {
1.60 kristaps 1387: int la, nl;
1.55 kristaps 1388: enum margserr ac;
1.43 kristaps 1389: struct mdoc_node *head; /* keep track of head */
1390: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1391: char *p;
1.53 kristaps 1392: enum mdoct ntok;
1.1 kristaps 1393:
1.119 schwarze 1394: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1395:
1.43 kristaps 1396: /*
1397: * The opening of an explicit macro having zero or more leading
1398: * punctuation nodes; a head with optional single element (the
1399: * case of `Eo'); and a body that may be empty.
1400: */
1.32 kristaps 1401:
1.119 schwarze 1402: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.131 schwarze 1403: return(0);
1.32 kristaps 1404:
1.43 kristaps 1405: for (head = body = NULL; ; ) {
1.32 kristaps 1406: la = *pos;
1.119 schwarze 1407: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1408:
1.53 kristaps 1409: if (ARGS_ERROR == ac)
1.1 kristaps 1410: return(0);
1.53 kristaps 1411: if (ARGS_PUNCT == ac)
1.1 kristaps 1412: break;
1.53 kristaps 1413: if (ARGS_EOLN == ac)
1.1 kristaps 1414: break;
1.43 kristaps 1415:
1416: /* Flush out leading punctuation. */
1417:
1.53 kristaps 1418: if (NULL == head && ARGS_QWORD != ac &&
1.131 schwarze 1419: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1420: assert(NULL == body);
1.123 schwarze 1421: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.43 kristaps 1422: return(0);
1423: continue;
1.123 schwarze 1424: }
1.43 kristaps 1425:
1426: if (NULL == head) {
1427: assert(NULL == body);
1.119 schwarze 1428: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1429: return(0);
1.119 schwarze 1430: head = mdoc->last;
1.1 kristaps 1431: }
1432:
1.43 kristaps 1433: /*
1434: * `Eo' gobbles any data into the head, but most other
1435: * macros just immediately close out and begin the body.
1436: */
1437:
1438: if (NULL == body) {
1439: assert(head);
1440: /* No check whether it's a macro! */
1441: if (MDOC_Eo == tok)
1.123 schwarze 1442: if ( ! dword(mdoc, line, la, p, DELIM_MAX, 0))
1.43 kristaps 1443: return(0);
1444:
1.119 schwarze 1445: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1446: return(0);
1.119 schwarze 1447: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1448: return(0);
1.119 schwarze 1449: body = mdoc->last;
1.43 kristaps 1450:
1451: if (MDOC_Eo == tok)
1452: continue;
1.1 kristaps 1453: }
1.43 kristaps 1454:
1455: assert(NULL != head && NULL != body);
1456:
1.54 kristaps 1457: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1458:
1459: if (MDOC_MAX == ntok) {
1.123 schwarze 1460: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1461: MDOC_JOIN & mdoc_macros[tok].flags))
1.43 kristaps 1462: return(0);
1.53 kristaps 1463: continue;
1.43 kristaps 1464: }
1465:
1.119 schwarze 1466: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1467: return(0);
1.53 kristaps 1468: break;
1.1 kristaps 1469: }
1470:
1.43 kristaps 1471: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1472:
1.112 schwarze 1473: if (NULL == head)
1.119 schwarze 1474: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1475: return(0);
1476:
1477: if (NULL == body) {
1.119 schwarze 1478: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1479: return(0);
1.119 schwarze 1480: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1481: return(0);
1482: }
1483:
1.32 kristaps 1484: /* Standard appending of delimiters. */
1485:
1.60 kristaps 1486: if ( ! nl)
1.1 kristaps 1487: return(1);
1.119 schwarze 1488: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1489: }
1490:
1491: static int
1492: in_line_argn(MACRO_PROT_ARGS)
1493: {
1.60 kristaps 1494: int la, flushed, j, maxargs, nl;
1.55 kristaps 1495: enum margserr ac;
1.56 kristaps 1496: enum margverr av;
1.53 kristaps 1497: struct mdoc_arg *arg;
1498: char *p;
1499: enum mdoct ntok;
1.1 kristaps 1500:
1.119 schwarze 1501: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1502:
1.46 kristaps 1503: /*
1504: * A line macro that has a fixed number of arguments (maxargs).
1505: * Only open the scope once the first non-leading-punctuation is
1506: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1507: * keep it open until the maximum number of arguments are
1508: * exhausted.
1509: */
1.1 kristaps 1510:
1511: switch (tok) {
1.131 schwarze 1512: case MDOC_Ap:
1.1 kristaps 1513: /* FALLTHROUGH */
1.131 schwarze 1514: case MDOC_No:
1.1 kristaps 1515: /* FALLTHROUGH */
1.131 schwarze 1516: case MDOC_Ns:
1.1 kristaps 1517: /* FALLTHROUGH */
1.131 schwarze 1518: case MDOC_Ux:
1.1 kristaps 1519: maxargs = 0;
1520: break;
1.131 schwarze 1521: case MDOC_Bx:
1.101 kristaps 1522: /* FALLTHROUGH */
1.132 schwarze 1523: case MDOC_Es:
1524: /* FALLTHROUGH */
1.131 schwarze 1525: case MDOC_Xr:
1.42 kristaps 1526: maxargs = 2;
1527: break;
1.1 kristaps 1528: default:
1529: maxargs = 1;
1530: break;
1531: }
1532:
1.46 kristaps 1533: for (arg = NULL; ; ) {
1.32 kristaps 1534: la = *pos;
1.119 schwarze 1535: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1536:
1.56 kristaps 1537: if (ARGV_WORD == av) {
1.32 kristaps 1538: *pos = la;
1.1 kristaps 1539: break;
1.131 schwarze 1540: }
1.1 kristaps 1541:
1.56 kristaps 1542: if (ARGV_EOLN == av)
1.1 kristaps 1543: break;
1.56 kristaps 1544: if (ARGV_ARG == av)
1.1 kristaps 1545: continue;
1546:
1547: mdoc_argv_free(arg);
1548: return(0);
1549: }
1550:
1.46 kristaps 1551: for (flushed = j = 0; ; ) {
1.32 kristaps 1552: la = *pos;
1.119 schwarze 1553: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1554:
1.53 kristaps 1555: if (ARGS_ERROR == ac)
1.1 kristaps 1556: return(0);
1.53 kristaps 1557: if (ARGS_PUNCT == ac)
1.1 kristaps 1558: break;
1.53 kristaps 1559: if (ARGS_EOLN == ac)
1.1 kristaps 1560: break;
1561:
1.131 schwarze 1562: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1563: ARGS_QWORD != ac && 0 == j &&
1564: DELIM_OPEN == mdoc_isdelim(p)) {
1.123 schwarze 1565: if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
1.46 kristaps 1566: return(0);
1567: continue;
1568: } else if (0 == j)
1.133 schwarze 1569: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.46 kristaps 1570: return(0);
1571:
1572: if (j == maxargs && ! flushed) {
1.119 schwarze 1573: if ( ! rew_elem(mdoc, tok))
1.46 kristaps 1574: return(0);
1575: flushed = 1;
1576: }
1577:
1.54 kristaps 1578: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1579:
1580: if (MDOC_MAX != ntok) {
1.119 schwarze 1581: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1582: return(0);
1583: flushed = 1;
1.119 schwarze 1584: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1585: return(0);
1.46 kristaps 1586: j++;
1.1 kristaps 1587: break;
1588: }
1589:
1590: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.131 schwarze 1591: ARGS_QWORD != ac &&
1592: ! flushed &&
1593: DELIM_NONE != mdoc_isdelim(p)) {
1.119 schwarze 1594: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1595: return(0);
1596: flushed = 1;
1597: }
1.42 kristaps 1598:
1.123 schwarze 1599: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1600: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 1601: return(0);
1.46 kristaps 1602: j++;
1.1 kristaps 1603: }
1604:
1.133 schwarze 1605: if (0 == j && ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.46 kristaps 1606: return(0);
1607:
1608: /* Close out in a consistent state. */
1.32 kristaps 1609:
1.119 schwarze 1610: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1611: return(0);
1.60 kristaps 1612: if ( ! nl)
1.1 kristaps 1613: return(1);
1.119 schwarze 1614: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1615: }
1616:
1617: static int
1618: in_line_eoln(MACRO_PROT_ARGS)
1619: {
1.56 kristaps 1620: int la;
1.55 kristaps 1621: enum margserr ac;
1.56 kristaps 1622: enum margverr av;
1.53 kristaps 1623: struct mdoc_arg *arg;
1624: char *p;
1625: enum mdoct ntok;
1.1 kristaps 1626:
1627: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1628:
1.90 schwarze 1629: if (tok == MDOC_Pp)
1.119 schwarze 1630: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1631:
1.32 kristaps 1632: /* Parse macro arguments. */
1.1 kristaps 1633:
1.32 kristaps 1634: for (arg = NULL; ; ) {
1.1 kristaps 1635: la = *pos;
1.119 schwarze 1636: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1637:
1.56 kristaps 1638: if (ARGV_WORD == av) {
1.1 kristaps 1639: *pos = la;
1640: break;
1641: }
1.131 schwarze 1642: if (ARGV_EOLN == av)
1.1 kristaps 1643: break;
1.56 kristaps 1644: if (ARGV_ARG == av)
1.1 kristaps 1645: continue;
1646:
1647: mdoc_argv_free(arg);
1648: return(0);
1649: }
1650:
1.32 kristaps 1651: /* Open element scope. */
1652:
1.119 schwarze 1653: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1654: return(0);
1655:
1.32 kristaps 1656: /* Parse argument terms. */
1.1 kristaps 1657:
1658: for (;;) {
1659: la = *pos;
1.119 schwarze 1660: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1661:
1.53 kristaps 1662: if (ARGS_ERROR == ac)
1.1 kristaps 1663: return(0);
1.53 kristaps 1664: if (ARGS_EOLN == ac)
1.1 kristaps 1665: break;
1666:
1.53 kristaps 1667: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1668:
1.53 kristaps 1669: if (MDOC_MAX == ntok) {
1.123 schwarze 1670: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1671: MDOC_JOIN & mdoc_macros[tok].flags))
1.1 kristaps 1672: return(0);
1.53 kristaps 1673: continue;
1674: }
1.1 kristaps 1675:
1.119 schwarze 1676: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1677: return(0);
1.119 schwarze 1678: return(mdoc_macro(mdoc, ntok, line, la, pos, buf));
1.1 kristaps 1679: }
1680:
1.32 kristaps 1681: /* Close out (no delimiters). */
1682:
1.119 schwarze 1683: return(rew_elem(mdoc, tok));
1.1 kristaps 1684: }
1685:
1686: static int
1.41 kristaps 1687: ctx_synopsis(MACRO_PROT_ARGS)
1688: {
1.60 kristaps 1689: int nl;
1690:
1.119 schwarze 1691: nl = MDOC_NEWLINE & mdoc->flags;
1.41 kristaps 1692:
1693: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.119 schwarze 1694: if ( ! (MDOC_SYNOPSIS & mdoc->flags))
1695: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1696:
1697: /* If we're a nested call, same place. */
1.60 kristaps 1698: if ( ! nl)
1.119 schwarze 1699: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1700:
1701: /*
1702: * XXX: this will open a block scope; however, if later we end
1703: * up formatting the block scope, then child nodes will inherit
1704: * the formatting. Be careful.
1705: */
1.88 schwarze 1706: if (MDOC_Nm == tok)
1.119 schwarze 1707: return(blk_full(mdoc, tok, line, ppos, pos, buf));
1.88 schwarze 1708: assert(MDOC_Vt == tok);
1.119 schwarze 1709: return(blk_part_imp(mdoc, tok, line, ppos, pos, buf));
1.1 kristaps 1710: }
1711:
1.24 kristaps 1712: /*
1713: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1714: * They're unusual because they're basically free-form text until a
1715: * macro is encountered.
1716: */
1.1 kristaps 1717: static int
1.119 schwarze 1718: phrase(struct mdoc *mdoc, int line, int ppos, char *buf)
1.1 kristaps 1719: {
1.53 kristaps 1720: int la, pos;
1.75 kristaps 1721: enum margserr ac;
1.53 kristaps 1722: enum mdoct ntok;
1723: char *p;
1.1 kristaps 1724:
1.24 kristaps 1725: for (pos = ppos; ; ) {
1726: la = pos;
1.1 kristaps 1727:
1.119 schwarze 1728: ac = mdoc_zargs(mdoc, line, &pos, buf, &p);
1.1 kristaps 1729:
1.75 kristaps 1730: if (ARGS_ERROR == ac)
1.24 kristaps 1731: return(0);
1.75 kristaps 1732: if (ARGS_EOLN == ac)
1.24 kristaps 1733: break;
1.1 kristaps 1734:
1.75 kristaps 1735: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1736:
1.53 kristaps 1737: if (MDOC_MAX == ntok) {
1.123 schwarze 1738: if ( ! dword(mdoc, line, la, p, DELIM_MAX, 1))
1.1 kristaps 1739: return(0);
1.53 kristaps 1740: continue;
1741: }
1.1 kristaps 1742:
1.119 schwarze 1743: if ( ! mdoc_macro(mdoc, ntok, line, la, &pos, buf))
1.1 kristaps 1744: return(0);
1.119 schwarze 1745: return(append_delims(mdoc, line, &pos, buf));
1.1 kristaps 1746: }
1747:
1748: return(1);
1749: }
1.24 kristaps 1750:
1.75 kristaps 1751: static int
1752: phrase_ta(MACRO_PROT_ARGS)
1753: {
1.121 schwarze 1754: struct mdoc_node *n;
1.75 kristaps 1755: int la;
1756: enum mdoct ntok;
1757: enum margserr ac;
1758: char *p;
1759:
1.121 schwarze 1760: /* Make sure we are in a column list or ignore this macro. */
1761: n = mdoc->last;
1762: while (NULL != n && MDOC_Bl != n->tok)
1763: n = n->parent;
1764: if (NULL == n || LIST_column != n->norm->Bl.type) {
1765: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_STRAYTA);
1766: return(1);
1767: }
1.75 kristaps 1768:
1.121 schwarze 1769: /* Advance to the next column. */
1.119 schwarze 1770: if ( ! rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos))
1.75 kristaps 1771: return(0);
1.119 schwarze 1772: if ( ! mdoc_body_alloc(mdoc, line, ppos, MDOC_It))
1.75 kristaps 1773: return(0);
1774:
1775: for (;;) {
1776: la = *pos;
1.119 schwarze 1777: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.75 kristaps 1778:
1779: if (ARGS_ERROR == ac)
1780: return(0);
1781: if (ARGS_EOLN == ac)
1782: break;
1783:
1784: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1785:
1786: if (MDOC_MAX == ntok) {
1.123 schwarze 1787: if ( ! dword(mdoc, line, la, p, DELIM_MAX,
1788: MDOC_JOIN & mdoc_macros[tok].flags))
1.75 kristaps 1789: return(0);
1790: continue;
1791: }
1792:
1.119 schwarze 1793: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.75 kristaps 1794: return(0);
1.119 schwarze 1795: return(append_delims(mdoc, line, pos, buf));
1.75 kristaps 1796: }
1797:
1798: return(1);
1799: }
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