Annotation of mandoc/mdoc_macro.c, Revision 1.166
1.166 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.165 2015/02/02 04:04:45 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 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: #include "config.h"
1.140 schwarze 19:
20: #include <sys/types.h>
1.40 kristaps 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:
1.151 schwarze 43: static void blk_full(MACRO_PROT_ARGS);
44: static void blk_exp_close(MACRO_PROT_ARGS);
45: static void blk_part_exp(MACRO_PROT_ARGS);
46: static void blk_part_imp(MACRO_PROT_ARGS);
47: static void ctx_synopsis(MACRO_PROT_ARGS);
48: static void in_line_eoln(MACRO_PROT_ARGS);
49: static void in_line_argn(MACRO_PROT_ARGS);
50: static void in_line(MACRO_PROT_ARGS);
51: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 52:
1.150 schwarze 53: static void dword(struct mdoc *, int, int, const char *,
1.123 schwarze 54: enum mdelim, int);
1.150 schwarze 55: static void append_delims(struct mdoc *, int, int *, char *);
1.155 schwarze 56: static enum mdoct lookup(struct mdoc *, enum mdoct,
57: int, int, const char *);
1.153 schwarze 58: static int macro_or_word(MACRO_PROT_ARGS, int);
1.85 schwarze 59: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 60: struct mdoc *, int, int);
1.154 schwarze 61: static int parse_rest(struct mdoc *, enum mdoct,
62: int, int *, char *);
1.131 schwarze 63: static enum mdoct rew_alt(enum mdoct);
64: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.53 kristaps 65: const struct mdoc_node *);
1.149 schwarze 66: static void rew_elem(struct mdoc *, enum mdoct);
67: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.166 ! schwarze 68: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.150 schwarze 69: static void rew_sub(enum mdoc_type, struct mdoc *,
1.53 kristaps 70: enum mdoct, int, int);
1.1 kristaps 71:
72: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 73: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 74: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
75: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
76: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 77: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
78: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
79: { in_line_eoln, 0 }, /* Pp */
80: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
81: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 82: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 83: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 84: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 85: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
86: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 90: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 95: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
97: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 101: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 102: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 103: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
104: { blk_full, MDOC_JOIN }, /* Nd */
105: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 106: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 107: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 108: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
109: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 110: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 111: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 112: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 113: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 114: { in_line_eoln, MDOC_JOIN }, /* %A */
115: { in_line_eoln, MDOC_JOIN }, /* %B */
116: { in_line_eoln, MDOC_JOIN }, /* %D */
117: { in_line_eoln, MDOC_JOIN }, /* %I */
118: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 119: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 120: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 121: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 122: { in_line_eoln, MDOC_JOIN }, /* %R */
123: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 124: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 125: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
126: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
127: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
128: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
129: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 130: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 131: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
132: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
133: { blk_full, MDOC_EXPLICIT }, /* Bf */
134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
135: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
136: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
139: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 140: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
142: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
143: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
144: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
145: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
146: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
147: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 148: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
149: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 150: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 151: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 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 */
1.147 schwarze 175: { in_line_argn, 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 */
1.143 schwarze 213: { in_line_eoln, MDOC_PROLOGUE }, /* 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: */
1.151 schwarze 224: void
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:
1.151 schwarze 231: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 232: mdoc->last->parent : mdoc->last;
1.1 kristaps 233:
1.94 schwarze 234: for ( ; n; n = n->parent)
1.151 schwarze 235: if (n->type == MDOC_BLOCK &&
236: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 237: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
238: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 239:
1.32 kristaps 240: /* Rewind to the first. */
241:
1.149 schwarze 242: rew_last(mdoc, mdoc->first);
1.1 kristaps 243: }
244:
1.32 kristaps 245: /*
1.153 schwarze 246: * Look up the macro at *p called by "from",
247: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 248: */
1.53 kristaps 249: static enum mdoct
1.155 schwarze 250: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28 kristaps 251: {
1.58 kristaps 252: enum mdoct res;
1.1 kristaps 253:
1.153 schwarze 254: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
255: res = mdoc_hash_find(p);
1.155 schwarze 256: if (res != MDOC_MAX) {
257: if (mdoc_macros[res].flags & MDOC_CALLABLE)
258: return(res);
259: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
260: mandoc_msg(MANDOCERR_MACRO_CALL,
261: mdoc->parse, line, ppos, p);
262: }
1.153 schwarze 263: }
1.1 kristaps 264: return(MDOC_MAX);
265: }
266:
1.166 ! schwarze 267: /*
! 268: * Rewind up to and including a specific node.
! 269: */
1.149 schwarze 270: static void
1.32 kristaps 271: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 272: {
1.100 kristaps 273: struct mdoc_node *n, *np;
1.1 kristaps 274:
275: assert(to);
276: mdoc->next = MDOC_NEXT_SIBLING;
277: while (mdoc->last != to) {
1.166 ! schwarze 278: if ( ! (mdoc->last->flags & MDOC_VALID))
! 279: mdoc->last->lastline = to->lastline -
! 280: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
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;
1.149 schwarze 288: mdoc_valid_post(mdoc);
1.99 kristaps 289: n = mdoc->last;
1.100 kristaps 290: mdoc->last = np;
1.1 kristaps 291: assert(mdoc->last);
1.99 kristaps 292: mdoc->last->last = n;
1.1 kristaps 293: }
1.149 schwarze 294: mdoc_valid_post(mdoc);
1.1 kristaps 295: }
296:
1.32 kristaps 297: /*
1.166 ! schwarze 298: * Rewind up to a specific block, including all blocks that broke it.
! 299: */
! 300: static void
! 301: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
! 302: {
! 303:
! 304: rew_last(mdoc, n);
! 305:
! 306: if (n->type != MDOC_BLOCK)
! 307: return;
! 308:
! 309: while ((n = n->pending) != NULL) {
! 310: rew_last(mdoc, n);
! 311: if (n->type == MDOC_HEAD)
! 312: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
! 313: }
! 314: }
! 315:
! 316: /*
1.84 schwarze 317: * For a block closing macro, return the corresponding opening one.
318: * Otherwise, return the macro itself.
1.32 kristaps 319: */
1.47 kristaps 320: static enum mdoct
321: rew_alt(enum mdoct tok)
1.1 kristaps 322: {
323: switch (tok) {
1.131 schwarze 324: case MDOC_Ac:
1.1 kristaps 325: return(MDOC_Ao);
1.131 schwarze 326: case MDOC_Bc:
1.1 kristaps 327: return(MDOC_Bo);
1.131 schwarze 328: case MDOC_Brc:
1.1 kristaps 329: return(MDOC_Bro);
1.131 schwarze 330: case MDOC_Dc:
1.1 kristaps 331: return(MDOC_Do);
1.131 schwarze 332: case MDOC_Ec:
1.1 kristaps 333: return(MDOC_Eo);
1.131 schwarze 334: case MDOC_Ed:
1.1 kristaps 335: return(MDOC_Bd);
1.131 schwarze 336: case MDOC_Ef:
1.1 kristaps 337: return(MDOC_Bf);
1.131 schwarze 338: case MDOC_Ek:
1.1 kristaps 339: return(MDOC_Bk);
1.131 schwarze 340: case MDOC_El:
1.1 kristaps 341: return(MDOC_Bl);
1.131 schwarze 342: case MDOC_Fc:
1.1 kristaps 343: return(MDOC_Fo);
1.131 schwarze 344: case MDOC_Oc:
1.1 kristaps 345: return(MDOC_Oo);
1.131 schwarze 346: case MDOC_Pc:
1.1 kristaps 347: return(MDOC_Po);
1.131 schwarze 348: case MDOC_Qc:
1.1 kristaps 349: return(MDOC_Qo);
1.131 schwarze 350: case MDOC_Re:
1.1 kristaps 351: return(MDOC_Rs);
1.131 schwarze 352: case MDOC_Sc:
1.1 kristaps 353: return(MDOC_So);
1.131 schwarze 354: case MDOC_Xc:
1.1 kristaps 355: return(MDOC_Xo);
356: default:
1.84 schwarze 357: return(tok);
1.1 kristaps 358: }
359: /* NOTREACHED */
360: }
361:
1.84 schwarze 362: /*
363: * Rewinding to tok, how do we have to handle *p?
364: * REWIND_NONE: *p would delimit tok, but no tok scope is open
365: * inside *p, so there is no need to rewind anything at all.
366: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
367: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 368: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 369: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
370: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 371: */
1.51 kristaps 372: static enum rew
1.131 schwarze 373: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.47 kristaps 374: const struct mdoc_node *p)
1.1 kristaps 375: {
376:
1.86 schwarze 377: /*
378: * No matching token, no delimiting block, no broken block.
379: * This can happen when full implicit macros are called for
380: * the first time but try to rewind their previous
381: * instance anyway.
382: */
1.1 kristaps 383: if (MDOC_ROOT == p->type)
1.84 schwarze 384: return(MDOC_BLOCK == type &&
385: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
386: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 387:
388: /*
1.131 schwarze 389: * When starting to rewind, skip plain text
1.86 schwarze 390: * and nodes that have already been rewound.
391: */
1.161 schwarze 392: if (p->type == MDOC_TEXT || p->flags & (MDOC_VALID | MDOC_BREAK))
1.84 schwarze 393: return(REWIND_MORE);
394:
1.86 schwarze 395: /*
396: * The easiest case: Found a matching token.
397: * This applies to both blocks and elements.
398: */
1.84 schwarze 399: tok = rew_alt(tok);
400: if (tok == p->tok)
401: return(p->end ? REWIND_NONE :
402: type == p->type ? REWIND_THIS : REWIND_MORE);
403:
1.86 schwarze 404: /*
405: * While elements do require rewinding for themselves,
406: * they never affect rewinding of other nodes.
407: */
1.84 schwarze 408: if (MDOC_ELEM == p->type)
409: return(REWIND_MORE);
1.1 kristaps 410:
1.86 schwarze 411: /*
412: * Blocks delimited by our target token get REWIND_MORE.
1.131 schwarze 413: * Blocks delimiting our target token get REWIND_NONE.
1.86 schwarze 414: */
1.1 kristaps 415: switch (tok) {
1.131 schwarze 416: case MDOC_Bl:
1.84 schwarze 417: if (MDOC_It == p->tok)
418: return(REWIND_MORE);
1.1 kristaps 419: break;
1.131 schwarze 420: case MDOC_It:
1.1 kristaps 421: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 422: return(REWIND_NONE);
1.1 kristaps 423: break;
1.84 schwarze 424: /*
425: * XXX Badly nested block handling still fails badly
426: * when one block is breaking two blocks of the same type.
427: * This is an incomplete and extremely ugly workaround,
428: * required to let the OpenBSD tree build.
429: */
1.131 schwarze 430: case MDOC_Oo:
1.84 schwarze 431: if (MDOC_Op == p->tok)
432: return(REWIND_MORE);
1.1 kristaps 433: break;
1.131 schwarze 434: case MDOC_Nm:
1.88 schwarze 435: return(REWIND_NONE);
1.131 schwarze 436: case MDOC_Nd:
1.19 kristaps 437: /* FALLTHROUGH */
1.131 schwarze 438: case MDOC_Ss:
1.1 kristaps 439: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 440: return(REWIND_NONE);
1.1 kristaps 441: /* FALLTHROUGH */
1.131 schwarze 442: case MDOC_Sh:
1.138 schwarze 443: if (MDOC_ROOT == p->parent->type)
444: return(REWIND_THIS);
1.84 schwarze 445: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
446: MDOC_Sh == p->tok)
447: return(REWIND_MORE);
1.1 kristaps 448: break;
449: default:
450: break;
451: }
452:
1.86 schwarze 453: /*
454: * Default block rewinding rules.
1.88 schwarze 455: * In particular, always skip block end markers,
456: * and let all blocks rewind Nm children.
1.146 schwarze 457: * Do not warn again when closing a block,
458: * since closing the body already warned.
1.86 schwarze 459: */
1.88 schwarze 460: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.146 schwarze 461: MDOC_BLOCK == type || (MDOC_BLOCK == p->type &&
1.86 schwarze 462: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
463: return(REWIND_MORE);
464:
465: /*
1.98 kristaps 466: * By default, closing out full blocks
467: * forces closing of broken explicit blocks,
468: * while closing out partial blocks
469: * allows delayed rewinding by default.
1.86 schwarze 470: */
1.98 kristaps 471: return (&blk_full == mdoc_macros[tok].fp ?
472: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 473: }
474:
1.149 schwarze 475: static void
1.47 kristaps 476: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 477: {
478: struct mdoc_node *n;
479:
480: n = mdoc->last;
481: if (MDOC_ELEM != n->type)
482: n = n->parent;
483: assert(MDOC_ELEM == n->type);
484: assert(tok == n->tok);
1.149 schwarze 485: rew_last(mdoc, n);
1.1 kristaps 486: }
487:
1.83 schwarze 488: /*
489: * We are trying to close a block identified by tok,
490: * but the child block *broken is still open.
491: * Thus, postpone closing the tok block
492: * until the rew_sub call closing *broken.
493: */
494: static int
495: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.119 schwarze 496: struct mdoc *mdoc, int line, int ppos)
1.83 schwarze 497: {
498: struct mdoc_node *breaker;
499:
500: /*
501: * Iterate backwards, searching for the block matching tok,
502: * that is, the block breaking the *broken block.
503: */
504: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
505:
506: /*
1.158 schwarze 507: * If the *broken block (Z) is already broken and we
508: * encounter its breaker (B), make the tok block (A)
509: * pending on that inner breaker (B).
510: * Graphically, [A breaker=[B! broken=[Z->B B] tok=A] Z]
511: * becomes breaker=[A broken=[B! [Z->B B] tok=A] Z]
512: * and finally [A! [B!->A [Z->B B] A] Z].
513: * In these graphics, "->" indicates the "pending"
514: * pointer and "!" indicates the MDOC_BREAK flag.
515: * Each of the cases gets one additional pointer (B->A)
516: * and one additional flag (A!).
1.83 schwarze 517: */
518: if (breaker == broken->pending) {
519: broken = breaker;
520: continue;
521: }
522:
1.84 schwarze 523: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 524: continue;
525: if (MDOC_BODY == broken->type)
526: broken = broken->parent;
527:
528: /*
529: * Found the breaker.
1.158 schwarze 530: * If another, outer breaker (X) is already pending on
531: * the *broken block (B), we must not clobber the link
1.83 schwarze 532: * to the outer breaker, but make it pending on the
1.158 schwarze 533: * new, now inner breaker (A).
534: * Graphically, [X! breaker=[A broken=[B->X X] tok=A] B]
535: * becomes [X! breaker=[A->X broken=[B X] tok=A] B]
536: * and finally [X! [A!->X [B->A X] A] B].
1.83 schwarze 537: */
538: if (broken->pending) {
539: struct mdoc_node *taker;
540:
541: /*
1.158 schwarze 542: * If the inner breaker (A) is already broken,
543: * too, it cannot take on the outer breaker (X)
544: * but must hand it on to its own breakers (Y):
545: * [X! [Y! breaker=[A->Y Y] broken=[B->X X] tok=A] B]
546: * [X! take=[Y!->X brea=[A->Y Y] brok=[B X] tok=A] B]
547: * and finally [X! [Y!->X [A!->Y Y] [B->A X] A] B].
1.83 schwarze 548: */
549: taker = breaker;
550: while (taker->pending)
551: taker = taker->pending;
552: taker->pending = broken->pending;
553: }
1.158 schwarze 554:
555: /*
556: * Now we have reduced the situation to the simplest
557: * case, which is just breaker=[A broken=[B tok=A] B]
558: * and becomes [A! [B->A A] B].
559: */
1.83 schwarze 560: broken->pending = breaker;
1.158 schwarze 561: breaker->flags |= MDOC_BREAK;
1.166 ! schwarze 562: if (breaker->body != NULL)
! 563: breaker->body->flags |= MDOC_BREAK;
1.137 schwarze 564: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.131 schwarze 565: "%s breaks %s", mdoc_macronames[tok],
566: mdoc_macronames[broken->tok]);
1.83 schwarze 567: return(1);
568: }
569:
570: /*
571: * Found no matching block for tok.
572: * Are you trying to close a block that is not open?
573: */
574: return(0);
575: }
576:
1.150 schwarze 577: static void
1.131 schwarze 578: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 579: enum mdoct tok, int line, int ppos)
1.1 kristaps 580: {
1.160 schwarze 581: struct mdoc_node *n, *to;
1.1 kristaps 582:
1.160 schwarze 583: to = NULL;
1.119 schwarze 584: n = mdoc->last;
1.84 schwarze 585: while (n) {
586: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 587: case REWIND_NONE:
1.160 schwarze 588: if (to == NULL)
589: return;
590: n = to;
591: break;
1.131 schwarze 592: case REWIND_THIS:
1.124 schwarze 593: n->lastline = line -
1.150 schwarze 594: (mdoc->flags & MDOC_NEWLINE &&
595: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.84 schwarze 596: break;
1.131 schwarze 597: case REWIND_FORCE:
1.137 schwarze 598: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.131 schwarze 599: line, ppos, "%s breaks %s",
600: mdoc_macronames[tok],
601: mdoc_macronames[n->tok]);
1.98 kristaps 602: /* FALLTHROUGH */
1.131 schwarze 603: case REWIND_MORE:
1.124 schwarze 604: n->lastline = line -
1.150 schwarze 605: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.160 schwarze 606: to = n;
1.84 schwarze 607: n = n->parent;
608: continue;
1.131 schwarze 609: case REWIND_LATER:
1.119 schwarze 610: if (make_pending(n, tok, mdoc, line, ppos) ||
1.150 schwarze 611: t != MDOC_BLOCK)
612: return;
1.98 kristaps 613: /* FALLTHROUGH */
1.131 schwarze 614: case REWIND_ERROR:
1.137 schwarze 615: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
616: mdoc->parse, line, ppos,
617: mdoc_macronames[tok]);
1.150 schwarze 618: return;
1.32 kristaps 619: }
1.84 schwarze 620: break;
1.1 kristaps 621: }
622: assert(n);
1.166 ! schwarze 623: rew_pending(mdoc, n);
1.1 kristaps 624: }
625:
1.105 kristaps 626: /*
627: * Allocate a word and check whether it's punctuation or not.
628: * Punctuation consists of those tokens found in mdoc_isdelim().
629: */
1.150 schwarze 630: static void
1.123 schwarze 631: dword(struct mdoc *mdoc, int line, int col, const char *p,
632: enum mdelim d, int may_append)
1.105 kristaps 633: {
1.131 schwarze 634:
1.150 schwarze 635: if (d == DELIM_MAX)
1.105 kristaps 636: d = mdoc_isdelim(p);
637:
1.123 schwarze 638: if (may_append &&
1.150 schwarze 639: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
640: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
641: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 642: mdoc_word_append(mdoc, p);
1.150 schwarze 643: return;
1.123 schwarze 644: }
645:
1.150 schwarze 646: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 647:
1.108 schwarze 648: /*
1.144 schwarze 649: * If the word consists of a bare delimiter,
650: * flag the new node accordingly,
651: * unless doing so was vetoed by the invoking macro.
652: * Always clear the veto, it is only valid for one word.
1.108 schwarze 653: */
654:
1.144 schwarze 655: if (d == DELIM_OPEN)
656: mdoc->last->flags |= MDOC_DELIMO;
657: else if (d == DELIM_CLOSE &&
658: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 659: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 660: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 661: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 662: }
1.1 kristaps 663:
1.150 schwarze 664: static void
1.119 schwarze 665: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 666: {
1.153 schwarze 667: char *p;
1.66 kristaps 668: int la;
1.1 kristaps 669:
1.150 schwarze 670: if (buf[*pos] == '\0')
671: return;
1.1 kristaps 672:
673: for (;;) {
1.66 kristaps 674: la = *pos;
1.153 schwarze 675: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 676: break;
1.123 schwarze 677: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 678:
679: /*
680: * If we encounter end-of-sentence symbols, then trigger
681: * the double-space.
682: *
1.109 kristaps 683: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 684: * the last symbol, such that `. )' will cause the
685: * correct double-spacing. However, (1) groff isn't
686: * smart enough to do this and (2) it would require
687: * knowing which symbols break this behaviour, for
1.109 kristaps 688: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 689: */
1.150 schwarze 690:
1.127 schwarze 691: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 692: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 693: }
694: }
695:
696: /*
1.153 schwarze 697: * Parse one word.
698: * If it is a macro, call it and return 1.
699: * Otherwise, allocate it and return 0.
700: */
701: static int
702: macro_or_word(MACRO_PROT_ARGS, int parsed)
703: {
704: char *p;
705: enum mdoct ntok;
706:
707: p = buf + ppos;
708: ntok = MDOC_MAX;
1.157 schwarze 709: if (*p == '"')
1.153 schwarze 710: p++;
1.157 schwarze 711: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 712: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 713:
714: if (ntok == MDOC_MAX) {
715: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
716: mdoc_macros[tok].flags & MDOC_JOIN);
717: return(0);
718: } else {
719: if (mdoc_macros[tok].fp == in_line_eoln)
720: rew_elem(mdoc, tok);
721: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
722: if (tok == MDOC_MAX)
723: append_delims(mdoc, line, pos, buf);
724: return(1);
725: }
726: }
727:
728: /*
1.131 schwarze 729: * Close out block partial/full explicit.
1.1 kristaps 730: */
1.151 schwarze 731: static void
1.1 kristaps 732: blk_exp_close(MACRO_PROT_ARGS)
733: {
1.83 schwarze 734: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 735: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 736: struct mdoc_node *later; /* A sub-block starting later. */
1.166 ! schwarze 737: struct mdoc_node *n; /* Search back to our block. */
1.83 schwarze 738:
1.166 ! schwarze 739: int have_it, j, lastarg, maxargs, nl;
1.55 kristaps 740: enum margserr ac;
1.83 schwarze 741: enum mdoct atok, ntok;
1.1 kristaps 742: char *p;
743:
1.119 schwarze 744: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 745:
1.1 kristaps 746: switch (tok) {
1.131 schwarze 747: case MDOC_Ec:
1.1 kristaps 748: maxargs = 1;
749: break;
1.131 schwarze 750: case MDOC_Ek:
1.125 schwarze 751: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 752: /* FALLTHROUGH */
1.1 kristaps 753: default:
754: maxargs = 0;
755: break;
756: }
757:
1.83 schwarze 758: /*
759: * Search backwards for beginnings of blocks,
760: * both of our own and of pending sub-blocks.
761: */
1.151 schwarze 762:
1.160 schwarze 763: have_it = 0;
1.83 schwarze 764: atok = rew_alt(tok);
1.148 schwarze 765: body = endbody = later = NULL;
1.119 schwarze 766: for (n = mdoc->last; n; n = n->parent) {
1.161 schwarze 767: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.83 schwarze 768: continue;
769:
770: /* Remember the start of our own body. */
1.151 schwarze 771:
1.150 schwarze 772: if (n->type == MDOC_BODY && atok == n->tok) {
1.166 ! schwarze 773: if (n->end == ENDBODY_NOT) {
1.83 schwarze 774: body = n;
1.166 ! schwarze 775: n->lastline = line;
! 776: }
1.83 schwarze 777: continue;
778: }
779:
1.150 schwarze 780: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 781: continue;
1.160 schwarze 782:
783: if (n->tok == MDOC_It) {
784: have_it = 1;
785: continue;
786: }
787:
1.83 schwarze 788: if (atok == n->tok) {
1.166 ! schwarze 789: n->lastline = line;
1.83 schwarze 790: assert(body);
791:
792: /*
793: * Found the start of our own block.
794: * When there is no pending sub block,
795: * just proceed to closing out.
796: */
1.151 schwarze 797:
1.160 schwarze 798: if (later == NULL ||
799: (tok == MDOC_El && !have_it))
1.83 schwarze 800: break;
801:
1.131 schwarze 802: /*
1.83 schwarze 803: * When there is a pending sub block,
804: * postpone closing out the current block
805: * until the rew_sub() closing out the sub-block.
806: */
1.151 schwarze 807:
1.119 schwarze 808: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 809:
810: /*
811: * Mark the place where the formatting - but not
812: * the scope - of the current block ends.
813: */
1.151 schwarze 814:
1.166 ! schwarze 815: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 816: atok, body, ENDBODY_SPACE);
1.151 schwarze 817:
818: /*
819: * If a block closing macro taking arguments
820: * breaks another block, put the arguments
1.166 ! schwarze 821: * into the end marker.
1.151 schwarze 822: */
823:
1.166 ! schwarze 824: if (maxargs)
1.148 schwarze 825: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 826: break;
827: }
828:
829: /*
830: * When finding an open sub block, remember the last
831: * open explicit block, or, in case there are only
832: * implicit ones, the first open implicit block.
833: */
1.151 schwarze 834:
1.160 schwarze 835: if (later == NULL ||
836: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.83 schwarze 837: later = n;
838: }
1.166 ! schwarze 839:
! 840: if (body == NULL) {
! 841: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
! 842: line, ppos, mdoc_macronames[tok]);
! 843: if (maxargs && endbody == NULL) {
! 844: /*
! 845: * Stray .Ec without previous .Eo:
! 846: * Break the output line, keep the arguments.
! 847: */
! 848: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
! 849: rew_elem(mdoc, MDOC_br);
! 850: }
! 851: } else if (endbody == NULL) {
! 852: rew_last(mdoc, body);
! 853: if (maxargs)
! 854: mdoc_tail_alloc(mdoc, line, ppos, atok);
! 855: }
1.83 schwarze 856:
1.150 schwarze 857: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
858: if (buf[*pos] != '\0')
1.136 schwarze 859: mandoc_vmsg(MANDOCERR_ARG_SKIP,
860: mdoc->parse, line, ppos,
861: "%s %s", mdoc_macronames[tok],
862: buf + *pos);
1.150 schwarze 863: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.151 schwarze 864: return;
1.1 kristaps 865: }
866:
1.166 ! schwarze 867: if (endbody != NULL)
! 868: n = endbody;
1.148 schwarze 869: for (j = 0; ; j++) {
1.1 kristaps 870: lastarg = *pos;
871:
1.166 ! schwarze 872: if (j == maxargs && n != NULL) {
! 873: rew_pending(mdoc, n);
! 874: n = NULL;
1.1 kristaps 875: }
876:
1.119 schwarze 877: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 878: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 879: break;
880:
1.155 schwarze 881: ntok = ac == ARGS_QWORD ? MDOC_MAX :
882: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 883:
1.150 schwarze 884: if (ntok == MDOC_MAX) {
885: dword(mdoc, line, lastarg, p, DELIM_MAX,
886: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 887: continue;
888: }
1.1 kristaps 889:
1.166 ! schwarze 890: if (n != NULL) {
! 891: rew_pending(mdoc, n);
! 892: n = NULL;
1.54 kristaps 893: }
1.122 schwarze 894: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 895: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 896: break;
1.1 kristaps 897: }
898:
1.166 ! schwarze 899: if (n != NULL)
! 900: rew_pending(mdoc, n);
1.150 schwarze 901: if (nl)
902: append_delims(mdoc, line, pos, buf);
1.1 kristaps 903: }
904:
1.151 schwarze 905: static void
1.1 kristaps 906: in_line(MACRO_PROT_ARGS)
907: {
1.144 schwarze 908: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 909: enum mdoct ntok;
1.55 kristaps 910: enum margserr ac;
1.67 schwarze 911: enum mdelim d;
1.53 kristaps 912: struct mdoc_arg *arg;
913: char *p;
1.1 kristaps 914:
1.119 schwarze 915: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 916:
1.4 kristaps 917: /*
918: * Whether we allow ignored elements (those without content,
919: * usually because of reserved words) to squeak by.
920: */
1.45 kristaps 921:
1.4 kristaps 922: switch (tok) {
1.131 schwarze 923: case MDOC_An:
1.26 kristaps 924: /* FALLTHROUGH */
1.131 schwarze 925: case MDOC_Ar:
1.4 kristaps 926: /* FALLTHROUGH */
1.131 schwarze 927: case MDOC_Fl:
1.4 kristaps 928: /* FALLTHROUGH */
1.131 schwarze 929: case MDOC_Mt:
1.12 kristaps 930: /* FALLTHROUGH */
1.131 schwarze 931: case MDOC_Nm:
1.26 kristaps 932: /* FALLTHROUGH */
1.131 schwarze 933: case MDOC_Pa:
1.4 kristaps 934: nc = 1;
935: break;
936: default:
937: nc = 0;
938: break;
939: }
940:
1.152 schwarze 941: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 942:
1.144 schwarze 943: d = DELIM_NONE;
944: firstarg = 1;
1.142 schwarze 945: mayopen = 1;
1.70 kristaps 946: for (cnt = scope = 0;; ) {
1.1 kristaps 947: la = *pos;
1.119 schwarze 948: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 949:
1.144 schwarze 950: /*
951: * At the end of a macro line,
952: * opening delimiters do not suppress spacing.
953: */
954:
955: if (ac == ARGS_EOLN) {
956: if (d == DELIM_OPEN)
957: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 958: break;
1.144 schwarze 959: }
960:
961: /*
962: * The rest of the macro line is only punctuation,
963: * to be handled by append_delims().
964: * If there were no other arguments,
965: * do not allow the first one to suppress spacing,
966: * even if it turns out to be a closing one.
967: */
968:
969: if (ac == ARGS_PUNCT) {
970: if (cnt == 0 && nc == 0)
971: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 972: break;
1.144 schwarze 973: }
1.1 kristaps 974:
1.145 schwarze 975: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 976: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 977:
1.131 schwarze 978: /*
1.4 kristaps 979: * In this case, we've located a submacro and must
980: * execute it. Close out scope, if open. If no
981: * elements have been generated, either create one (nc)
982: * or raise a warning.
983: */
1.1 kristaps 984:
1.150 schwarze 985: if (ntok != MDOC_MAX) {
1.149 schwarze 986: if (scope)
987: rew_elem(mdoc, tok);
1.150 schwarze 988: if (nc && ! cnt) {
989: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 990: rew_last(mdoc, mdoc->last);
1.150 schwarze 991: } else if ( ! nc && ! cnt) {
1.7 kristaps 992: mdoc_argv_free(arg);
1.135 schwarze 993: mandoc_msg(MANDOCERR_MACRO_EMPTY,
994: mdoc->parse, line, ppos,
995: mdoc_macronames[tok]);
1.7 kristaps 996: }
1.151 schwarze 997: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 998: if (nl)
999: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1000: return;
1.131 schwarze 1001: }
1.1 kristaps 1002:
1.131 schwarze 1003: /*
1.4 kristaps 1004: * Non-quote-enclosed punctuation. Set up our scope, if
1005: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 1006: * the word.
1.4 kristaps 1007: */
1.1 kristaps 1008:
1.150 schwarze 1009: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 1010:
1.70 kristaps 1011: if (DELIM_NONE != d) {
1012: /*
1013: * If we encounter closing punctuation, no word
1.144 schwarze 1014: * has been emitted, no scope is open, and we're
1.70 kristaps 1015: * allowed to have an empty element, then start
1.142 schwarze 1016: * a new scope.
1.70 kristaps 1017: */
1.142 schwarze 1018: if ((d == DELIM_CLOSE ||
1019: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 1020: !cnt && !scope && nc && mayopen) {
1.150 schwarze 1021: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 1022: scope = 1;
1.142 schwarze 1023: cnt++;
1.150 schwarze 1024: if (tok == MDOC_Nm)
1.142 schwarze 1025: mayopen = 0;
1.70 kristaps 1026: }
1027: /*
1028: * Close out our scope, if one is open, before
1029: * any punctuation.
1030: */
1.149 schwarze 1031: if (scope)
1032: rew_elem(mdoc, tok);
1.70 kristaps 1033: scope = 0;
1.145 schwarze 1034: if (tok == MDOC_Fn)
1035: mayopen = 0;
1.142 schwarze 1036: } else if (mayopen && !scope) {
1.150 schwarze 1037: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 1038: scope = 1;
1.142 schwarze 1039: cnt++;
1.1 kristaps 1040: }
1.105 kristaps 1041:
1.150 schwarze 1042: dword(mdoc, line, la, p, d,
1043: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 1044:
1045: /*
1.144 schwarze 1046: * If the first argument is a closing delimiter,
1047: * do not suppress spacing before it.
1048: */
1049:
1050: if (firstarg && d == DELIM_CLOSE && !nc)
1051: mdoc->last->flags &= ~MDOC_DELIMC;
1052: firstarg = 0;
1053:
1054: /*
1.39 kristaps 1055: * `Fl' macros have their scope re-opened with each new
1056: * word so that the `-' can be added to each one without
1057: * having to parse out spaces.
1058: */
1.150 schwarze 1059: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1060: rew_elem(mdoc, tok);
1.70 kristaps 1061: scope = 0;
1.39 kristaps 1062: }
1.1 kristaps 1063: }
1064:
1.149 schwarze 1065: if (scope)
1066: rew_elem(mdoc, tok);
1.4 kristaps 1067:
1068: /*
1069: * If no elements have been collected and we're allowed to have
1070: * empties (nc), open a scope and close it out. Otherwise,
1071: * raise a warning.
1072: */
1.45 kristaps 1073:
1.150 schwarze 1074: if ( ! cnt) {
1075: if (nc) {
1076: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1077: rew_last(mdoc, mdoc->last);
1078: } else {
1079: mdoc_argv_free(arg);
1080: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1081: line, ppos, mdoc_macronames[tok]);
1082: }
1.7 kristaps 1083: }
1.150 schwarze 1084: if (nl)
1085: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1086: }
1087:
1.151 schwarze 1088: static void
1.1 kristaps 1089: blk_full(MACRO_PROT_ARGS)
1090: {
1.153 schwarze 1091: int la, nl, parsed;
1.1 kristaps 1092: struct mdoc_arg *arg;
1.165 schwarze 1093: struct mdoc_node *blk; /* Our own block. */
1094: struct mdoc_node *head; /* Our own head. */
1095: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 1096: struct mdoc_node *n;
1.59 kristaps 1097: enum margserr ac, lac;
1.1 kristaps 1098: char *p;
1099:
1.119 schwarze 1100: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1101:
1102: /* Skip items outside lists. */
1103:
1104: if (tok == MDOC_It) {
1105: for (n = mdoc->last; n; n = n->parent)
1.158 schwarze 1106: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1107: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.138 schwarze 1108: break;
1109: if (n == NULL) {
1110: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1111: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1112: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1113: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1114: return;
1.138 schwarze 1115: }
1116: }
1.63 kristaps 1117:
1.45 kristaps 1118: /* Close out prior implicit scope. */
1.19 kristaps 1119:
1.150 schwarze 1120: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1121: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1122: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1123: }
1124:
1.45 kristaps 1125: /*
1.109 kristaps 1126: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1127: * macro openings. Implicit ones first close out prior scope
1128: * (seen above). Delay opening the head until necessary to
1129: * allow leading punctuation to print. Special consideration
1130: * for `It -column', which has phrase-part syntax instead of
1131: * regular child nodes.
1132: */
1133:
1.152 schwarze 1134: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1135: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1136: head = body = NULL;
1.115 schwarze 1137:
1138: /*
1139: * Exception: Heads of `It' macros in `-diag' lists are not
1140: * parsed, even though `It' macros in general are parsed.
1141: */
1.151 schwarze 1142:
1.153 schwarze 1143: parsed = tok != MDOC_It ||
1144: mdoc->last->parent->tok != MDOC_Bl ||
1145: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1146:
1.45 kristaps 1147: /*
1148: * The `Nd' macro has all arguments in its body: it's a hybrid
1149: * of block partial-explicit and full-implicit. Stupid.
1150: */
1.19 kristaps 1151:
1.150 schwarze 1152: if (tok == MDOC_Nd) {
1153: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1154: rew_last(mdoc, head);
1.150 schwarze 1155: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1156: }
1157:
1.150 schwarze 1158: if (tok == MDOC_Bk)
1.123 schwarze 1159: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1160:
1.150 schwarze 1161: ac = ARGS_PEND;
1162: for (;;) {
1.45 kristaps 1163: la = *pos;
1.150 schwarze 1164: lac = ac;
1.119 schwarze 1165: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1166: if (ac == ARGS_PUNCT)
1.89 schwarze 1167: break;
1.150 schwarze 1168: if (ac == ARGS_EOLN) {
1169: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1170: break;
1171: /*
1172: * This is necessary: if the last token on a
1173: * line is a `Ta' or tab, then we'll get
1174: * ARGS_EOLN, so we must be smart enough to
1175: * reopen our scope if the last parse was a
1176: * phrase or partial phrase.
1177: */
1.150 schwarze 1178: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1179: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1180: break;
1.75 kristaps 1181: }
1.45 kristaps 1182:
1.131 schwarze 1183: /*
1.73 kristaps 1184: * Emit leading punctuation (i.e., punctuation before
1185: * the MDOC_HEAD) for non-phrase types.
1186: */
1.45 kristaps 1187:
1.150 schwarze 1188: if (head == NULL &&
1189: ac != ARGS_PEND &&
1190: ac != ARGS_PHRASE &&
1191: ac != ARGS_PPHRASE &&
1192: ac != ARGS_QWORD &&
1193: mdoc_isdelim(p) == DELIM_OPEN) {
1194: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1195: continue;
1196: }
1197:
1.74 kristaps 1198: /* Open a head if one hasn't been opened. */
1.45 kristaps 1199:
1.150 schwarze 1200: if (head == NULL)
1201: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1202:
1.150 schwarze 1203: if (ac == ARGS_PHRASE ||
1204: ac == ARGS_PEND ||
1205: ac == ARGS_PPHRASE) {
1.151 schwarze 1206:
1.73 kristaps 1207: /*
1.74 kristaps 1208: * If we haven't opened a body yet, rewind the
1209: * head; if we have, rewind that instead.
1210: */
1211:
1.150 schwarze 1212: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1213: mdoc, tok, line, ppos);
1214: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1215:
1216: /*
1.73 kristaps 1217: * Process phrases: set whether we're in a
1218: * partial-phrase (this effects line handling)
1219: * then call down into the phrase parser.
1220: */
1.74 kristaps 1221:
1.150 schwarze 1222: if (ac == ARGS_PPHRASE)
1.119 schwarze 1223: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1224: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1225: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1226: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1227: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1228: continue;
1229: }
1230:
1.153 schwarze 1231: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1232: break;
1.45 kristaps 1233: }
1.1 kristaps 1234:
1.165 schwarze 1235: if (blk->flags & MDOC_VALID)
1236: return;
1.150 schwarze 1237: if (head == NULL)
1238: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1239: if (nl)
1240: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1241: if (body != NULL)
1.77 kristaps 1242: goto out;
1.19 kristaps 1243:
1.47 kristaps 1244: /*
1.49 kristaps 1245: * If there is an open (i.e., unvalidated) sub-block requiring
1246: * explicit close-out, postpone switching the current block from
1247: * head to body until the rew_sub() call closing out that
1248: * sub-block.
1.47 kristaps 1249: */
1.119 schwarze 1250: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1251: if (n->type == MDOC_BLOCK &&
1252: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1253: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1254: n->pending = head;
1.151 schwarze 1255: return;
1.47 kristaps 1256: }
1257: }
1258:
1.45 kristaps 1259: /* Close out scopes to remain in a consistent state. */
1260:
1.150 schwarze 1261: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1262: mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1263: out:
1.150 schwarze 1264: if (mdoc->flags & MDOC_FREECOL) {
1265: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1266: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1267: mdoc->flags &= ~MDOC_FREECOL;
1268: }
1.1 kristaps 1269: }
1270:
1.151 schwarze 1271: static void
1.1 kristaps 1272: blk_part_imp(MACRO_PROT_ARGS)
1273: {
1.63 kristaps 1274: int la, nl;
1.55 kristaps 1275: enum margserr ac;
1.1 kristaps 1276: char *p;
1.43 kristaps 1277: struct mdoc_node *blk; /* saved block context */
1278: struct mdoc_node *body; /* saved body context */
1279: struct mdoc_node *n;
1.1 kristaps 1280:
1.119 schwarze 1281: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1282:
1.43 kristaps 1283: /*
1284: * A macro that spans to the end of the line. This is generally
1285: * (but not necessarily) called as the first macro. The block
1286: * has a head as the immediate child, which is always empty,
1287: * followed by zero or more opening punctuation nodes, then the
1288: * body (which may be empty, depending on the macro), then zero
1289: * or more closing punctuation nodes.
1290: */
1.32 kristaps 1291:
1.150 schwarze 1292: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1293: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1294:
1.43 kristaps 1295: /*
1296: * Open the body scope "on-demand", that is, after we've
1297: * processed all our the leading delimiters (open parenthesis,
1298: * etc.).
1299: */
1.1 kristaps 1300:
1.43 kristaps 1301: for (body = NULL; ; ) {
1.32 kristaps 1302: la = *pos;
1.119 schwarze 1303: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1304: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1305: break;
1306:
1.150 schwarze 1307: if (body == NULL && ac != ARGS_QWORD &&
1308: mdoc_isdelim(p) == DELIM_OPEN) {
1309: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1310: continue;
1.123 schwarze 1311: }
1.1 kristaps 1312:
1.150 schwarze 1313: if (body == NULL)
1314: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1315:
1.153 schwarze 1316: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1317: break;
1.1 kristaps 1318: }
1.150 schwarze 1319: if (body == NULL)
1320: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1321:
1.83 schwarze 1322: /*
1323: * If there is an open sub-block requiring explicit close-out,
1324: * postpone closing out the current block
1325: * until the rew_sub() call closing out the sub-block.
1326: */
1.151 schwarze 1327:
1.119 schwarze 1328: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1329: n = n->parent) {
1.150 schwarze 1330: if (n->type == MDOC_BLOCK &&
1331: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1332: ! (n->flags & MDOC_VALID)) {
1.119 schwarze 1333: make_pending(n, tok, mdoc, line, ppos);
1.150 schwarze 1334: mdoc_endbody_alloc(mdoc, line, ppos,
1335: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1336: return;
1.83 schwarze 1337: }
1338: }
1.134 schwarze 1339: assert(n == body);
1.164 schwarze 1340: rew_last(mdoc, body);
1.150 schwarze 1341: if (nl)
1342: append_delims(mdoc, line, pos, buf);
1.166 ! schwarze 1343: rew_pending(mdoc, blk);
1.117 schwarze 1344:
1345: /* Move trailing .Ns out of scope. */
1346:
1347: for (n = body->child; n && n->next; n = n->next)
1348: /* Do nothing. */ ;
1.150 schwarze 1349: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1350: mdoc_node_relink(mdoc, n);
1.1 kristaps 1351: }
1352:
1.151 schwarze 1353: static void
1.1 kristaps 1354: blk_part_exp(MACRO_PROT_ARGS)
1355: {
1.60 kristaps 1356: int la, nl;
1.55 kristaps 1357: enum margserr ac;
1.43 kristaps 1358: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1359: char *p;
1360:
1.119 schwarze 1361: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1362:
1.43 kristaps 1363: /*
1364: * The opening of an explicit macro having zero or more leading
1365: * punctuation nodes; a head with optional single element (the
1366: * case of `Eo'); and a body that may be empty.
1367: */
1.32 kristaps 1368:
1.150 schwarze 1369: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1370: head = NULL;
1371: for (;;) {
1.32 kristaps 1372: la = *pos;
1.119 schwarze 1373: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1374: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1375: break;
1.43 kristaps 1376:
1377: /* Flush out leading punctuation. */
1378:
1.150 schwarze 1379: if (head == NULL && ac != ARGS_QWORD &&
1380: mdoc_isdelim(p) == DELIM_OPEN) {
1381: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1382: continue;
1.123 schwarze 1383: }
1.43 kristaps 1384:
1.150 schwarze 1385: if (head == NULL) {
1386: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1387: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1388: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1389: rew_last(mdoc, head);
1390: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1391: if (tok == MDOC_Eo)
1.43 kristaps 1392: continue;
1.1 kristaps 1393: }
1.43 kristaps 1394:
1.153 schwarze 1395: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1396: break;
1.1 kristaps 1397: }
1398:
1.43 kristaps 1399: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1400:
1.163 schwarze 1401: if (head == NULL) {
1402: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1403: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1404: }
1.150 schwarze 1405: if (nl)
1406: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1407: }
1408:
1.151 schwarze 1409: static void
1.1 kristaps 1410: in_line_argn(MACRO_PROT_ARGS)
1411: {
1.60 kristaps 1412: int la, flushed, j, maxargs, nl;
1.55 kristaps 1413: enum margserr ac;
1.53 kristaps 1414: struct mdoc_arg *arg;
1415: char *p;
1416: enum mdoct ntok;
1.1 kristaps 1417:
1.156 schwarze 1418: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1419:
1.46 kristaps 1420: /*
1421: * A line macro that has a fixed number of arguments (maxargs).
1422: * Only open the scope once the first non-leading-punctuation is
1423: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1424: * keep it open until the maximum number of arguments are
1425: * exhausted.
1426: */
1.1 kristaps 1427:
1428: switch (tok) {
1.131 schwarze 1429: case MDOC_Ap:
1.1 kristaps 1430: /* FALLTHROUGH */
1.131 schwarze 1431: case MDOC_Ns:
1.1 kristaps 1432: /* FALLTHROUGH */
1.131 schwarze 1433: case MDOC_Ux:
1.1 kristaps 1434: maxargs = 0;
1435: break;
1.131 schwarze 1436: case MDOC_Bx:
1.101 kristaps 1437: /* FALLTHROUGH */
1.132 schwarze 1438: case MDOC_Es:
1439: /* FALLTHROUGH */
1.131 schwarze 1440: case MDOC_Xr:
1.42 kristaps 1441: maxargs = 2;
1442: break;
1.1 kristaps 1443: default:
1444: maxargs = 1;
1445: break;
1446: }
1447:
1.152 schwarze 1448: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1449:
1.156 schwarze 1450: p = NULL;
1451: flushed = j = 0;
1452: for (;;) {
1.32 kristaps 1453: la = *pos;
1.119 schwarze 1454: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 schwarze 1455: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1456: if (j < 2 && tok == MDOC_Pf)
1457: mandoc_vmsg(MANDOCERR_PF_SKIP,
1458: mdoc->parse, line, ppos, "Pf %s",
1459: p == NULL ? "at eol" : p);
1.1 kristaps 1460: break;
1.156 schwarze 1461: }
1.1 kristaps 1462:
1.150 schwarze 1463: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1464: ac != ARGS_QWORD && j == 0 &&
1465: mdoc_isdelim(p) == DELIM_OPEN) {
1466: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1467: continue;
1.150 schwarze 1468: } else if (j == 0)
1469: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1470:
1471: if (j == maxargs && ! flushed) {
1.149 schwarze 1472: rew_elem(mdoc, tok);
1.46 kristaps 1473: flushed = 1;
1474: }
1475:
1.156 schwarze 1476: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1477: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1478:
1.150 schwarze 1479: if (ntok != MDOC_MAX) {
1.149 schwarze 1480: if ( ! flushed)
1481: rew_elem(mdoc, tok);
1.1 kristaps 1482: flushed = 1;
1.151 schwarze 1483: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1484: j++;
1.1 kristaps 1485: break;
1486: }
1487:
1.150 schwarze 1488: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1489: ac != ARGS_QWORD && ! flushed &&
1490: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1491: rew_elem(mdoc, tok);
1.1 kristaps 1492: flushed = 1;
1493: }
1.42 kristaps 1494:
1.150 schwarze 1495: dword(mdoc, line, la, p, DELIM_MAX,
1496: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1497: j++;
1.1 kristaps 1498: }
1499:
1.156 schwarze 1500: if (j == 0) {
1.150 schwarze 1501: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 schwarze 1502: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1503: append_delims(mdoc, line, pos, buf);
1504: }
1.149 schwarze 1505: if ( ! flushed)
1506: rew_elem(mdoc, tok);
1.150 schwarze 1507: if (nl)
1508: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1509: }
1510:
1.151 schwarze 1511: static void
1.1 kristaps 1512: in_line_eoln(MACRO_PROT_ARGS)
1513: {
1.53 kristaps 1514: struct mdoc_arg *arg;
1.1 kristaps 1515:
1.90 schwarze 1516: if (tok == MDOC_Pp)
1.119 schwarze 1517: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1518:
1.152 schwarze 1519: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1520: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1521: if (parse_rest(mdoc, tok, line, pos, buf))
1522: return;
1523: rew_elem(mdoc, tok);
1524: }
1525:
1526: /*
1527: * The simplest argument parser available: Parse the remaining
1528: * words until the end of the phrase or line and return 0
1529: * or until the next macro, call that macro, and return 1.
1530: */
1531: static int
1532: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1533: {
1534: int la;
1.1 kristaps 1535:
1536: for (;;) {
1537: la = *pos;
1.153 schwarze 1538: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1539: return(0);
1.153 schwarze 1540: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1541: return(1);
1.1 kristaps 1542: }
1543: }
1544:
1.151 schwarze 1545: static void
1.41 kristaps 1546: ctx_synopsis(MACRO_PROT_ARGS)
1547: {
1.60 kristaps 1548:
1.151 schwarze 1549: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1550: in_line(mdoc, tok, line, ppos, pos, buf);
1551: else if (tok == MDOC_Nm)
1552: blk_full(mdoc, tok, line, ppos, pos, buf);
1553: else {
1554: assert(tok == MDOC_Vt);
1555: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1556: }
1.1 kristaps 1557: }
1558:
1.24 kristaps 1559: /*
1560: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1561: * They're unusual because they're basically free-form text until a
1562: * macro is encountered.
1563: */
1.151 schwarze 1564: static void
1.75 kristaps 1565: phrase_ta(MACRO_PROT_ARGS)
1566: {
1.121 schwarze 1567: struct mdoc_node *n;
1.75 kristaps 1568:
1.121 schwarze 1569: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1570:
1.121 schwarze 1571: n = mdoc->last;
1.159 schwarze 1572: while (n != NULL &&
1573: (n->tok != MDOC_Bl || n->flags & (MDOC_VALID | MDOC_BREAK)))
1.121 schwarze 1574: n = n->parent;
1.151 schwarze 1575: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1576: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1577: line, ppos, "Ta");
1.151 schwarze 1578: return;
1.121 schwarze 1579: }
1.75 kristaps 1580:
1.121 schwarze 1581: /* Advance to the next column. */
1.150 schwarze 1582:
1583: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1584: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1585: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1586: }
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