Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.122
1.122 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.121 2015/02/02 04:04:18 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.118 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
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.100 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
21: #include <ctype.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
1.26 schwarze 25: #include <time.h>
1.1 kristaps 26:
1.66 schwarze 27: #include "mdoc.h"
1.44 schwarze 28: #include "mandoc.h"
1.1 kristaps 29: #include "libmdoc.h"
1.39 schwarze 30: #include "libmandoc.h"
1.1 kristaps 31:
1.48 schwarze 32: enum rew { /* see rew_dohalt() */
33: REWIND_NONE,
34: REWIND_THIS,
35: REWIND_MORE,
1.59 schwarze 36: REWIND_FORCE,
1.48 schwarze 37: REWIND_LATER,
1.54 schwarze 38: REWIND_ERROR
1.35 schwarze 39: };
1.1 kristaps 40:
1.107 schwarze 41: static void blk_full(MACRO_PROT_ARGS);
42: static void blk_exp_close(MACRO_PROT_ARGS);
43: static void blk_part_exp(MACRO_PROT_ARGS);
44: static void blk_part_imp(MACRO_PROT_ARGS);
45: static void ctx_synopsis(MACRO_PROT_ARGS);
46: static void in_line_eoln(MACRO_PROT_ARGS);
47: static void in_line_argn(MACRO_PROT_ARGS);
48: static void in_line(MACRO_PROT_ARGS);
49: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 50:
1.106 schwarze 51: static void dword(struct mdoc *, int, int, const char *,
1.80 schwarze 52: enum mdelim, int);
1.106 schwarze 53: static void append_delims(struct mdoc *, int, int *, char *);
1.111 schwarze 54: static enum mdoct lookup(struct mdoc *, enum mdoct,
55: int, int, const char *);
1.109 schwarze 56: static int macro_or_word(MACRO_PROT_ARGS, int);
1.49 schwarze 57: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 58: struct mdoc *, int, int);
1.110 schwarze 59: static int parse_rest(struct mdoc *, enum mdoct,
60: int, int *, char *);
1.88 schwarze 61: static enum mdoct rew_alt(enum mdoct);
62: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.36 schwarze 63: const struct mdoc_node *);
1.105 schwarze 64: static void rew_elem(struct mdoc *, enum mdoct);
65: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.122 ! schwarze 66: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.106 schwarze 67: static void rew_sub(enum mdoc_type, struct mdoc *,
1.36 schwarze 68: enum mdoct, int, int);
1.1 kristaps 69:
70: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 71: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 72: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
73: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
74: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 75: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
76: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
77: { in_line_eoln, 0 }, /* Pp */
78: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
79: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 80: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 81: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 82: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 83: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
84: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 93: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
95: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 99: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 100: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 101: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
102: { blk_full, MDOC_JOIN }, /* Nd */
103: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 104: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 105: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
107: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 109: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 110: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 111: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 112: { in_line_eoln, MDOC_JOIN }, /* %A */
113: { in_line_eoln, MDOC_JOIN }, /* %B */
114: { in_line_eoln, MDOC_JOIN }, /* %D */
115: { in_line_eoln, MDOC_JOIN }, /* %I */
116: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 117: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 118: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 119: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 120: { in_line_eoln, MDOC_JOIN }, /* %R */
121: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 122: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 123: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
124: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
125: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
126: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 129: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
130: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
131: { blk_full, MDOC_EXPLICIT }, /* Bf */
132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
133: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
134: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
137: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 138: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
140: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
142: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
143: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
145: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 148: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 149: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 150: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 152: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
153: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 154: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
155: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 156: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 157: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
158: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
159: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
160: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
161: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
162: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
164: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
165: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
166: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 167: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 168: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
169: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
170: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
172: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 173: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 174: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
175: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 176: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 177: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 178: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
179: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 180: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
181: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
182: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
183: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
184: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
185: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
186: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 187: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 188: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 189: { in_line_eoln, 0 }, /* Bt */
190: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 191: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 192: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 193: { in_line, 0 }, /* Lb */
1.80 schwarze 194: { in_line_eoln, 0 }, /* Lp */
195: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
196: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
197: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
198: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
199: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
200: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
201: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
202: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 203: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
204: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 205: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 206: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 207: { in_line_eoln, 0 }, /* br */
208: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 209: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 210: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 211: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 212: };
213:
214: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
215:
216:
217: /*
218: * This is called at the end of parsing. It must traverse up the tree,
219: * closing out open [implicit] scopes. Obviously, open explicit scopes
220: * are errors.
221: */
1.107 schwarze 222: void
1.76 schwarze 223: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 224: {
225: struct mdoc_node *n;
226:
227: /* Scan for open explicit scopes. */
228:
1.107 schwarze 229: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 230: mdoc->last->parent : mdoc->last;
1.1 kristaps 231:
1.56 schwarze 232: for ( ; n; n = n->parent)
1.107 schwarze 233: if (n->type == MDOC_BLOCK &&
234: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 235: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
236: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 237:
1.22 schwarze 238: /* Rewind to the first. */
239:
1.105 schwarze 240: rew_last(mdoc, mdoc->first);
1.1 kristaps 241: }
242:
1.22 schwarze 243: /*
1.109 schwarze 244: * Look up the macro at *p called by "from",
245: * or as a line macro if from == MDOC_MAX.
1.22 schwarze 246: */
1.36 schwarze 247: static enum mdoct
1.111 schwarze 248: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.21 schwarze 249: {
1.36 schwarze 250: enum mdoct res;
1.1 kristaps 251:
1.109 schwarze 252: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
253: res = mdoc_hash_find(p);
1.111 schwarze 254: if (res != MDOC_MAX) {
255: if (mdoc_macros[res].flags & MDOC_CALLABLE)
256: return(res);
257: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
258: mandoc_msg(MANDOCERR_MACRO_CALL,
259: mdoc->parse, line, ppos, p);
260: }
1.109 schwarze 261: }
1.1 kristaps 262: return(MDOC_MAX);
263: }
264:
1.122 ! schwarze 265: /*
! 266: * Rewind up to and including a specific node.
! 267: */
1.105 schwarze 268: static void
1.22 schwarze 269: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 270: {
1.63 schwarze 271: struct mdoc_node *n, *np;
1.1 kristaps 272:
273: assert(to);
274: mdoc->next = MDOC_NEXT_SIBLING;
275: while (mdoc->last != to) {
1.122 ! schwarze 276: if ( ! (mdoc->last->flags & MDOC_VALID))
! 277: mdoc->last->lastline = to->lastline -
! 278: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.63 schwarze 279: /*
280: * Save the parent here, because we may delete the
1.76 schwarze 281: * mdoc->last node in the post-validation phase and reset
282: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 283: * out to be lost.
284: */
285: np = mdoc->last->parent;
1.105 schwarze 286: mdoc_valid_post(mdoc);
1.61 schwarze 287: n = mdoc->last;
1.63 schwarze 288: mdoc->last = np;
1.1 kristaps 289: assert(mdoc->last);
1.61 schwarze 290: mdoc->last->last = n;
1.1 kristaps 291: }
1.105 schwarze 292: mdoc_valid_post(mdoc);
1.1 kristaps 293: }
294:
1.22 schwarze 295: /*
1.122 ! schwarze 296: * Rewind up to a specific block, including all blocks that broke it.
! 297: */
! 298: static void
! 299: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
! 300: {
! 301:
! 302: rew_last(mdoc, n);
! 303:
! 304: if (n->type != MDOC_BLOCK)
! 305: return;
! 306:
! 307: while ((n = n->pending) != NULL) {
! 308: rew_last(mdoc, n);
! 309: if (n->type == MDOC_HEAD)
! 310: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
! 311: }
! 312: }
! 313:
! 314: /*
1.48 schwarze 315: * For a block closing macro, return the corresponding opening one.
316: * Otherwise, return the macro itself.
1.22 schwarze 317: */
1.34 schwarze 318: static enum mdoct
319: rew_alt(enum mdoct tok)
1.1 kristaps 320: {
321: switch (tok) {
1.88 schwarze 322: case MDOC_Ac:
1.1 kristaps 323: return(MDOC_Ao);
1.88 schwarze 324: case MDOC_Bc:
1.1 kristaps 325: return(MDOC_Bo);
1.88 schwarze 326: case MDOC_Brc:
1.1 kristaps 327: return(MDOC_Bro);
1.88 schwarze 328: case MDOC_Dc:
1.1 kristaps 329: return(MDOC_Do);
1.88 schwarze 330: case MDOC_Ec:
1.1 kristaps 331: return(MDOC_Eo);
1.88 schwarze 332: case MDOC_Ed:
1.1 kristaps 333: return(MDOC_Bd);
1.88 schwarze 334: case MDOC_Ef:
1.1 kristaps 335: return(MDOC_Bf);
1.88 schwarze 336: case MDOC_Ek:
1.1 kristaps 337: return(MDOC_Bk);
1.88 schwarze 338: case MDOC_El:
1.1 kristaps 339: return(MDOC_Bl);
1.88 schwarze 340: case MDOC_Fc:
1.1 kristaps 341: return(MDOC_Fo);
1.88 schwarze 342: case MDOC_Oc:
1.1 kristaps 343: return(MDOC_Oo);
1.88 schwarze 344: case MDOC_Pc:
1.1 kristaps 345: return(MDOC_Po);
1.88 schwarze 346: case MDOC_Qc:
1.1 kristaps 347: return(MDOC_Qo);
1.88 schwarze 348: case MDOC_Re:
1.1 kristaps 349: return(MDOC_Rs);
1.88 schwarze 350: case MDOC_Sc:
1.1 kristaps 351: return(MDOC_So);
1.88 schwarze 352: case MDOC_Xc:
1.1 kristaps 353: return(MDOC_Xo);
354: default:
1.48 schwarze 355: return(tok);
1.1 kristaps 356: }
357: /* NOTREACHED */
358: }
359:
1.48 schwarze 360: /*
361: * Rewinding to tok, how do we have to handle *p?
362: * REWIND_NONE: *p would delimit tok, but no tok scope is open
363: * inside *p, so there is no need to rewind anything at all.
364: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
365: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 schwarze 366: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 367: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
368: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 369: */
1.35 schwarze 370: static enum rew
1.88 schwarze 371: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.34 schwarze 372: const struct mdoc_node *p)
1.1 kristaps 373: {
374:
1.50 schwarze 375: /*
376: * No matching token, no delimiting block, no broken block.
377: * This can happen when full implicit macros are called for
378: * the first time but try to rewind their previous
379: * instance anyway.
380: */
1.1 kristaps 381: if (MDOC_ROOT == p->type)
1.48 schwarze 382: return(MDOC_BLOCK == type &&
383: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
384: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 385:
386: /*
1.88 schwarze 387: * When starting to rewind, skip plain text
1.50 schwarze 388: * and nodes that have already been rewound.
389: */
1.117 schwarze 390: if (p->type == MDOC_TEXT || p->flags & (MDOC_VALID | MDOC_BREAK))
1.48 schwarze 391: return(REWIND_MORE);
392:
1.50 schwarze 393: /*
394: * The easiest case: Found a matching token.
395: * This applies to both blocks and elements.
396: */
1.48 schwarze 397: tok = rew_alt(tok);
398: if (tok == p->tok)
399: return(p->end ? REWIND_NONE :
400: type == p->type ? REWIND_THIS : REWIND_MORE);
401:
1.50 schwarze 402: /*
403: * While elements do require rewinding for themselves,
404: * they never affect rewinding of other nodes.
405: */
1.48 schwarze 406: if (MDOC_ELEM == p->type)
407: return(REWIND_MORE);
1.1 kristaps 408:
1.50 schwarze 409: /*
410: * Blocks delimited by our target token get REWIND_MORE.
1.88 schwarze 411: * Blocks delimiting our target token get REWIND_NONE.
1.50 schwarze 412: */
1.1 kristaps 413: switch (tok) {
1.88 schwarze 414: case MDOC_Bl:
1.48 schwarze 415: if (MDOC_It == p->tok)
416: return(REWIND_MORE);
1.1 kristaps 417: break;
1.88 schwarze 418: case MDOC_It:
1.1 kristaps 419: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 420: return(REWIND_NONE);
1.1 kristaps 421: break;
1.48 schwarze 422: /*
423: * XXX Badly nested block handling still fails badly
424: * when one block is breaking two blocks of the same type.
425: * This is an incomplete and extremely ugly workaround,
426: * required to let the OpenBSD tree build.
427: */
1.88 schwarze 428: case MDOC_Oo:
1.48 schwarze 429: if (MDOC_Op == p->tok)
430: return(REWIND_MORE);
1.1 kristaps 431: break;
1.88 schwarze 432: case MDOC_Nm:
1.51 schwarze 433: return(REWIND_NONE);
1.88 schwarze 434: case MDOC_Nd:
1.12 schwarze 435: /* FALLTHROUGH */
1.88 schwarze 436: case MDOC_Ss:
1.1 kristaps 437: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 438: return(REWIND_NONE);
1.1 kristaps 439: /* FALLTHROUGH */
1.88 schwarze 440: case MDOC_Sh:
1.95 schwarze 441: if (MDOC_ROOT == p->parent->type)
442: return(REWIND_THIS);
1.48 schwarze 443: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
444: MDOC_Sh == p->tok)
445: return(REWIND_MORE);
1.1 kristaps 446: break;
447: default:
448: break;
449: }
450:
1.50 schwarze 451: /*
452: * Default block rewinding rules.
1.51 schwarze 453: * In particular, always skip block end markers,
454: * and let all blocks rewind Nm children.
1.102 schwarze 455: * Do not warn again when closing a block,
456: * since closing the body already warned.
1.50 schwarze 457: */
1.54 schwarze 458: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.102 schwarze 459: MDOC_BLOCK == type || (MDOC_BLOCK == p->type &&
1.50 schwarze 460: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
461: return(REWIND_MORE);
462:
463: /*
1.59 schwarze 464: * By default, closing out full blocks
465: * forces closing of broken explicit blocks,
466: * while closing out partial blocks
467: * allows delayed rewinding by default.
1.50 schwarze 468: */
1.59 schwarze 469: return (&blk_full == mdoc_macros[tok].fp ?
470: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 471: }
472:
1.105 schwarze 473: static void
1.34 schwarze 474: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 475: {
476: struct mdoc_node *n;
477:
478: n = mdoc->last;
479: if (MDOC_ELEM != n->type)
480: n = n->parent;
481: assert(MDOC_ELEM == n->type);
482: assert(tok == n->tok);
1.105 schwarze 483: rew_last(mdoc, n);
1.1 kristaps 484: }
485:
1.47 schwarze 486: /*
487: * We are trying to close a block identified by tok,
488: * but the child block *broken is still open.
489: * Thus, postpone closing the tok block
490: * until the rew_sub call closing *broken.
491: */
492: static int
493: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.76 schwarze 494: struct mdoc *mdoc, int line, int ppos)
1.47 schwarze 495: {
496: struct mdoc_node *breaker;
497:
498: /*
499: * Iterate backwards, searching for the block matching tok,
500: * that is, the block breaking the *broken block.
501: */
502: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
503:
504: /*
1.114 schwarze 505: * If the *broken block (Z) is already broken and we
506: * encounter its breaker (B), make the tok block (A)
507: * pending on that inner breaker (B).
508: * Graphically, [A breaker=[B! broken=[Z->B B] tok=A] Z]
509: * becomes breaker=[A broken=[B! [Z->B B] tok=A] Z]
510: * and finally [A! [B!->A [Z->B B] A] Z].
511: * In these graphics, "->" indicates the "pending"
512: * pointer and "!" indicates the MDOC_BREAK flag.
513: * Each of the cases gets one additional pointer (B->A)
514: * and one additional flag (A!).
1.47 schwarze 515: */
516: if (breaker == broken->pending) {
517: broken = breaker;
518: continue;
519: }
520:
1.48 schwarze 521: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 522: continue;
523: if (MDOC_BODY == broken->type)
524: broken = broken->parent;
525:
526: /*
527: * Found the breaker.
1.114 schwarze 528: * If another, outer breaker (X) is already pending on
529: * the *broken block (B), we must not clobber the link
1.47 schwarze 530: * to the outer breaker, but make it pending on the
1.114 schwarze 531: * new, now inner breaker (A).
532: * Graphically, [X! breaker=[A broken=[B->X X] tok=A] B]
533: * becomes [X! breaker=[A->X broken=[B X] tok=A] B]
534: * and finally [X! [A!->X [B->A X] A] B].
1.47 schwarze 535: */
536: if (broken->pending) {
537: struct mdoc_node *taker;
538:
539: /*
1.114 schwarze 540: * If the inner breaker (A) is already broken,
541: * too, it cannot take on the outer breaker (X)
542: * but must hand it on to its own breakers (Y):
543: * [X! [Y! breaker=[A->Y Y] broken=[B->X X] tok=A] B]
544: * [X! take=[Y!->X brea=[A->Y Y] brok=[B X] tok=A] B]
545: * and finally [X! [Y!->X [A!->Y Y] [B->A X] A] B].
1.47 schwarze 546: */
547: taker = breaker;
548: while (taker->pending)
549: taker = taker->pending;
550: taker->pending = broken->pending;
551: }
1.114 schwarze 552:
553: /*
554: * Now we have reduced the situation to the simplest
555: * case, which is just breaker=[A broken=[B tok=A] B]
556: * and becomes [A! [B->A A] B].
557: */
1.47 schwarze 558: broken->pending = breaker;
1.114 schwarze 559: breaker->flags |= MDOC_BREAK;
1.122 ! schwarze 560: if (breaker->body != NULL)
! 561: breaker->body->flags |= MDOC_BREAK;
1.94 schwarze 562: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.88 schwarze 563: "%s breaks %s", mdoc_macronames[tok],
564: mdoc_macronames[broken->tok]);
1.47 schwarze 565: return(1);
566: }
567:
568: /*
569: * Found no matching block for tok.
570: * Are you trying to close a block that is not open?
571: */
572: return(0);
573: }
574:
1.106 schwarze 575: static void
1.88 schwarze 576: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.34 schwarze 577: enum mdoct tok, int line, int ppos)
1.1 kristaps 578: {
1.116 schwarze 579: struct mdoc_node *n, *to;
1.1 kristaps 580:
1.116 schwarze 581: to = NULL;
1.76 schwarze 582: n = mdoc->last;
1.48 schwarze 583: while (n) {
584: switch (rew_dohalt(tok, t, n)) {
1.88 schwarze 585: case REWIND_NONE:
1.116 schwarze 586: if (to == NULL)
587: return;
588: n = to;
589: break;
1.88 schwarze 590: case REWIND_THIS:
1.81 schwarze 591: n->lastline = line -
1.106 schwarze 592: (mdoc->flags & MDOC_NEWLINE &&
593: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.48 schwarze 594: break;
1.88 schwarze 595: case REWIND_FORCE:
1.94 schwarze 596: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.88 schwarze 597: line, ppos, "%s breaks %s",
598: mdoc_macronames[tok],
599: mdoc_macronames[n->tok]);
1.59 schwarze 600: /* FALLTHROUGH */
1.88 schwarze 601: case REWIND_MORE:
1.81 schwarze 602: n->lastline = line -
1.106 schwarze 603: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.116 schwarze 604: to = n;
1.48 schwarze 605: n = n->parent;
606: continue;
1.88 schwarze 607: case REWIND_LATER:
1.76 schwarze 608: if (make_pending(n, tok, mdoc, line, ppos) ||
1.106 schwarze 609: t != MDOC_BLOCK)
610: return;
1.59 schwarze 611: /* FALLTHROUGH */
1.88 schwarze 612: case REWIND_ERROR:
1.94 schwarze 613: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
614: mdoc->parse, line, ppos,
615: mdoc_macronames[tok]);
1.106 schwarze 616: return;
1.22 schwarze 617: }
1.48 schwarze 618: break;
1.1 kristaps 619: }
620: assert(n);
1.122 ! schwarze 621: rew_pending(mdoc, n);
1.1 kristaps 622: }
623:
1.66 schwarze 624: /*
625: * Allocate a word and check whether it's punctuation or not.
626: * Punctuation consists of those tokens found in mdoc_isdelim().
627: */
1.106 schwarze 628: static void
1.80 schwarze 629: dword(struct mdoc *mdoc, int line, int col, const char *p,
630: enum mdelim d, int may_append)
1.66 schwarze 631: {
1.88 schwarze 632:
1.106 schwarze 633: if (d == DELIM_MAX)
1.66 schwarze 634: d = mdoc_isdelim(p);
635:
1.80 schwarze 636: if (may_append &&
1.106 schwarze 637: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
638: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
639: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 640: mdoc_word_append(mdoc, p);
1.106 schwarze 641: return;
1.80 schwarze 642: }
643:
1.106 schwarze 644: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 645:
1.71 schwarze 646: /*
1.100 schwarze 647: * If the word consists of a bare delimiter,
648: * flag the new node accordingly,
649: * unless doing so was vetoed by the invoking macro.
650: * Always clear the veto, it is only valid for one word.
1.71 schwarze 651: */
652:
1.100 schwarze 653: if (d == DELIM_OPEN)
654: mdoc->last->flags |= MDOC_DELIMO;
655: else if (d == DELIM_CLOSE &&
656: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 657: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 658: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 659: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 660: }
1.1 kristaps 661:
1.106 schwarze 662: static void
1.76 schwarze 663: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 664: {
1.109 schwarze 665: char *p;
1.42 schwarze 666: int la;
1.1 kristaps 667:
1.106 schwarze 668: if (buf[*pos] == '\0')
669: return;
1.1 kristaps 670:
671: for (;;) {
1.42 schwarze 672: la = *pos;
1.109 schwarze 673: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 674: break;
1.80 schwarze 675: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 676:
1.42 schwarze 677: /*
678: * If we encounter end-of-sentence symbols, then trigger
679: * the double-space.
680: *
1.68 schwarze 681: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 682: * the last symbol, such that `. )' will cause the
683: * correct double-spacing. However, (1) groff isn't
684: * smart enough to do this and (2) it would require
685: * knowing which symbols break this behaviour, for
1.68 schwarze 686: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 687: */
1.106 schwarze 688:
1.84 schwarze 689: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 690: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 691: }
692: }
693:
694: /*
1.109 schwarze 695: * Parse one word.
696: * If it is a macro, call it and return 1.
697: * Otherwise, allocate it and return 0.
698: */
699: static int
700: macro_or_word(MACRO_PROT_ARGS, int parsed)
701: {
702: char *p;
703: enum mdoct ntok;
704:
705: p = buf + ppos;
706: ntok = MDOC_MAX;
1.113 schwarze 707: if (*p == '"')
1.109 schwarze 708: p++;
1.113 schwarze 709: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 710: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 711:
712: if (ntok == MDOC_MAX) {
713: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
714: mdoc_macros[tok].flags & MDOC_JOIN);
715: return(0);
716: } else {
717: if (mdoc_macros[tok].fp == in_line_eoln)
718: rew_elem(mdoc, tok);
719: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
720: if (tok == MDOC_MAX)
721: append_delims(mdoc, line, pos, buf);
722: return(1);
723: }
724: }
725:
726: /*
1.88 schwarze 727: * Close out block partial/full explicit.
1.1 kristaps 728: */
1.107 schwarze 729: static void
1.1 kristaps 730: blk_exp_close(MACRO_PROT_ARGS)
731: {
1.47 schwarze 732: struct mdoc_node *body; /* Our own body. */
1.104 schwarze 733: struct mdoc_node *endbody; /* Our own end marker. */
1.47 schwarze 734: struct mdoc_node *later; /* A sub-block starting later. */
1.122 ! schwarze 735: struct mdoc_node *n; /* Search back to our block. */
1.47 schwarze 736:
1.122 ! schwarze 737: int have_it, j, lastarg, maxargs, nl;
1.36 schwarze 738: enum margserr ac;
1.47 schwarze 739: enum mdoct atok, ntok;
1.1 kristaps 740: char *p;
741:
1.76 schwarze 742: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 743:
1.1 kristaps 744: switch (tok) {
1.88 schwarze 745: case MDOC_Ec:
1.1 kristaps 746: maxargs = 1;
747: break;
1.88 schwarze 748: case MDOC_Ek:
1.82 schwarze 749: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 750: /* FALLTHROUGH */
1.1 kristaps 751: default:
752: maxargs = 0;
753: break;
754: }
755:
1.47 schwarze 756: /*
757: * Search backwards for beginnings of blocks,
758: * both of our own and of pending sub-blocks.
759: */
1.107 schwarze 760:
1.116 schwarze 761: have_it = 0;
1.47 schwarze 762: atok = rew_alt(tok);
1.104 schwarze 763: body = endbody = later = NULL;
1.76 schwarze 764: for (n = mdoc->last; n; n = n->parent) {
1.117 schwarze 765: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.47 schwarze 766: continue;
767:
768: /* Remember the start of our own body. */
1.107 schwarze 769:
1.106 schwarze 770: if (n->type == MDOC_BODY && atok == n->tok) {
1.122 ! schwarze 771: if (n->end == ENDBODY_NOT) {
1.47 schwarze 772: body = n;
1.122 ! schwarze 773: n->lastline = line;
! 774: }
1.47 schwarze 775: continue;
776: }
777:
1.106 schwarze 778: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 779: continue;
1.116 schwarze 780:
781: if (n->tok == MDOC_It) {
782: have_it = 1;
783: continue;
784: }
785:
1.47 schwarze 786: if (atok == n->tok) {
1.122 ! schwarze 787: n->lastline = line;
1.47 schwarze 788: assert(body);
789:
790: /*
791: * Found the start of our own block.
792: * When there is no pending sub block,
793: * just proceed to closing out.
794: */
1.107 schwarze 795:
1.116 schwarze 796: if (later == NULL ||
797: (tok == MDOC_El && !have_it))
1.47 schwarze 798: break;
799:
1.88 schwarze 800: /*
1.47 schwarze 801: * When there is a pending sub block,
802: * postpone closing out the current block
803: * until the rew_sub() closing out the sub-block.
804: */
1.107 schwarze 805:
1.76 schwarze 806: make_pending(later, tok, mdoc, line, ppos);
1.47 schwarze 807:
808: /*
809: * Mark the place where the formatting - but not
810: * the scope - of the current block ends.
811: */
1.107 schwarze 812:
1.122 ! schwarze 813: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 814: atok, body, ENDBODY_SPACE);
1.107 schwarze 815:
816: /*
817: * If a block closing macro taking arguments
818: * breaks another block, put the arguments
1.122 ! schwarze 819: * into the end marker.
1.107 schwarze 820: */
821:
1.122 ! schwarze 822: if (maxargs)
1.104 schwarze 823: mdoc->next = MDOC_NEXT_CHILD;
1.47 schwarze 824: break;
825: }
826:
827: /*
828: * When finding an open sub block, remember the last
829: * open explicit block, or, in case there are only
830: * implicit ones, the first open implicit block.
831: */
1.107 schwarze 832:
1.116 schwarze 833: if (later == NULL ||
834: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.47 schwarze 835: later = n;
836: }
1.122 ! schwarze 837:
! 838: if (body == NULL) {
! 839: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
! 840: line, ppos, mdoc_macronames[tok]);
! 841: if (maxargs && endbody == NULL) {
! 842: /*
! 843: * Stray .Ec without previous .Eo:
! 844: * Break the output line, keep the arguments.
! 845: */
! 846: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
! 847: rew_elem(mdoc, MDOC_br);
! 848: }
! 849: } else if (endbody == NULL) {
! 850: rew_last(mdoc, body);
! 851: if (maxargs)
! 852: mdoc_tail_alloc(mdoc, line, ppos, atok);
! 853: }
1.47 schwarze 854:
1.106 schwarze 855: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
856: if (buf[*pos] != '\0')
1.93 schwarze 857: mandoc_vmsg(MANDOCERR_ARG_SKIP,
858: mdoc->parse, line, ppos,
859: "%s %s", mdoc_macronames[tok],
860: buf + *pos);
1.106 schwarze 861: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.107 schwarze 862: return;
1.1 kristaps 863: }
864:
1.122 ! schwarze 865: if (endbody != NULL)
! 866: n = endbody;
1.104 schwarze 867: for (j = 0; ; j++) {
1.1 kristaps 868: lastarg = *pos;
869:
1.122 ! schwarze 870: if (j == maxargs && n != NULL) {
! 871: rew_pending(mdoc, n);
! 872: n = NULL;
1.1 kristaps 873: }
874:
1.76 schwarze 875: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 876: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 877: break;
878:
1.111 schwarze 879: ntok = ac == ARGS_QWORD ? MDOC_MAX :
880: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 881:
1.106 schwarze 882: if (ntok == MDOC_MAX) {
883: dword(mdoc, line, lastarg, p, DELIM_MAX,
884: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 885: continue;
886: }
1.1 kristaps 887:
1.122 ! schwarze 888: if (n != NULL) {
! 889: rew_pending(mdoc, n);
! 890: n = NULL;
1.36 schwarze 891: }
1.79 schwarze 892: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 893: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 894: break;
1.1 kristaps 895: }
896:
1.122 ! schwarze 897: if (n != NULL)
! 898: rew_pending(mdoc, n);
1.106 schwarze 899: if (nl)
900: append_delims(mdoc, line, pos, buf);
1.1 kristaps 901: }
902:
1.107 schwarze 903: static void
1.1 kristaps 904: in_line(MACRO_PROT_ARGS)
905: {
1.100 schwarze 906: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.36 schwarze 907: enum mdoct ntok;
908: enum margserr ac;
1.40 schwarze 909: enum mdelim d;
1.36 schwarze 910: struct mdoc_arg *arg;
911: char *p;
1.1 kristaps 912:
1.76 schwarze 913: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 914:
1.1 kristaps 915: /*
916: * Whether we allow ignored elements (those without content,
917: * usually because of reserved words) to squeak by.
918: */
1.32 schwarze 919:
1.1 kristaps 920: switch (tok) {
1.88 schwarze 921: case MDOC_An:
1.19 schwarze 922: /* FALLTHROUGH */
1.88 schwarze 923: case MDOC_Ar:
1.1 kristaps 924: /* FALLTHROUGH */
1.88 schwarze 925: case MDOC_Fl:
1.1 kristaps 926: /* FALLTHROUGH */
1.88 schwarze 927: case MDOC_Mt:
1.18 schwarze 928: /* FALLTHROUGH */
1.88 schwarze 929: case MDOC_Nm:
1.19 schwarze 930: /* FALLTHROUGH */
1.88 schwarze 931: case MDOC_Pa:
1.1 kristaps 932: nc = 1;
933: break;
934: default:
935: nc = 0;
936: break;
937: }
938:
1.108 schwarze 939: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 940:
1.100 schwarze 941: d = DELIM_NONE;
942: firstarg = 1;
1.98 schwarze 943: mayopen = 1;
1.45 schwarze 944: for (cnt = scope = 0;; ) {
1.1 kristaps 945: la = *pos;
1.76 schwarze 946: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 947:
1.100 schwarze 948: /*
949: * At the end of a macro line,
950: * opening delimiters do not suppress spacing.
951: */
952:
953: if (ac == ARGS_EOLN) {
954: if (d == DELIM_OPEN)
955: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 956: break;
1.100 schwarze 957: }
958:
959: /*
960: * The rest of the macro line is only punctuation,
961: * to be handled by append_delims().
962: * If there were no other arguments,
963: * do not allow the first one to suppress spacing,
964: * even if it turns out to be a closing one.
965: */
966:
967: if (ac == ARGS_PUNCT) {
968: if (cnt == 0 && nc == 0)
969: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 970: break;
1.100 schwarze 971: }
1.1 kristaps 972:
1.101 schwarze 973: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 974: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 975:
1.88 schwarze 976: /*
1.1 kristaps 977: * In this case, we've located a submacro and must
978: * execute it. Close out scope, if open. If no
979: * elements have been generated, either create one (nc)
980: * or raise a warning.
981: */
982:
1.106 schwarze 983: if (ntok != MDOC_MAX) {
1.105 schwarze 984: if (scope)
985: rew_elem(mdoc, tok);
1.106 schwarze 986: if (nc && ! cnt) {
987: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 988: rew_last(mdoc, mdoc->last);
1.106 schwarze 989: } else if ( ! nc && ! cnt) {
1.1 kristaps 990: mdoc_argv_free(arg);
1.92 schwarze 991: mandoc_msg(MANDOCERR_MACRO_EMPTY,
992: mdoc->parse, line, ppos,
993: mdoc_macronames[tok]);
1.1 kristaps 994: }
1.107 schwarze 995: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 996: if (nl)
997: append_delims(mdoc, line, pos, buf);
1.107 schwarze 998: return;
1.88 schwarze 999: }
1.1 kristaps 1000:
1.88 schwarze 1001: /*
1.1 kristaps 1002: * Non-quote-enclosed punctuation. Set up our scope, if
1003: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 1004: * the word.
1.1 kristaps 1005: */
1006:
1.106 schwarze 1007: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 1008:
1.45 schwarze 1009: if (DELIM_NONE != d) {
1010: /*
1011: * If we encounter closing punctuation, no word
1.100 schwarze 1012: * has been emitted, no scope is open, and we're
1.45 schwarze 1013: * allowed to have an empty element, then start
1.98 schwarze 1014: * a new scope.
1.45 schwarze 1015: */
1.98 schwarze 1016: if ((d == DELIM_CLOSE ||
1017: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 1018: !cnt && !scope && nc && mayopen) {
1.106 schwarze 1019: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 1020: scope = 1;
1.98 schwarze 1021: cnt++;
1.106 schwarze 1022: if (tok == MDOC_Nm)
1.98 schwarze 1023: mayopen = 0;
1.45 schwarze 1024: }
1025: /*
1026: * Close out our scope, if one is open, before
1027: * any punctuation.
1028: */
1.105 schwarze 1029: if (scope)
1030: rew_elem(mdoc, tok);
1.45 schwarze 1031: scope = 0;
1.101 schwarze 1032: if (tok == MDOC_Fn)
1033: mayopen = 0;
1.98 schwarze 1034: } else if (mayopen && !scope) {
1.106 schwarze 1035: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 1036: scope = 1;
1.98 schwarze 1037: cnt++;
1.1 kristaps 1038: }
1.66 schwarze 1039:
1.106 schwarze 1040: dword(mdoc, line, la, p, d,
1041: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 1042:
1043: /*
1.100 schwarze 1044: * If the first argument is a closing delimiter,
1045: * do not suppress spacing before it.
1046: */
1047:
1048: if (firstarg && d == DELIM_CLOSE && !nc)
1049: mdoc->last->flags &= ~MDOC_DELIMC;
1050: firstarg = 0;
1051:
1052: /*
1.27 schwarze 1053: * `Fl' macros have their scope re-opened with each new
1054: * word so that the `-' can be added to each one without
1055: * having to parse out spaces.
1056: */
1.106 schwarze 1057: if (scope && tok == MDOC_Fl) {
1.105 schwarze 1058: rew_elem(mdoc, tok);
1.45 schwarze 1059: scope = 0;
1.27 schwarze 1060: }
1.1 kristaps 1061: }
1062:
1.105 schwarze 1063: if (scope)
1064: rew_elem(mdoc, tok);
1.1 kristaps 1065:
1066: /*
1067: * If no elements have been collected and we're allowed to have
1068: * empties (nc), open a scope and close it out. Otherwise,
1069: * raise a warning.
1070: */
1.32 schwarze 1071:
1.106 schwarze 1072: if ( ! cnt) {
1073: if (nc) {
1074: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1075: rew_last(mdoc, mdoc->last);
1076: } else {
1077: mdoc_argv_free(arg);
1078: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1079: line, ppos, mdoc_macronames[tok]);
1080: }
1.1 kristaps 1081: }
1.106 schwarze 1082: if (nl)
1083: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1084: }
1085:
1.107 schwarze 1086: static void
1.1 kristaps 1087: blk_full(MACRO_PROT_ARGS)
1088: {
1.109 schwarze 1089: int la, nl, parsed;
1.1 kristaps 1090: struct mdoc_arg *arg;
1.121 schwarze 1091: struct mdoc_node *blk; /* Our own block. */
1092: struct mdoc_node *head; /* Our own head. */
1093: struct mdoc_node *body; /* Our own body. */
1.32 schwarze 1094: struct mdoc_node *n;
1.37 schwarze 1095: enum margserr ac, lac;
1.1 kristaps 1096: char *p;
1097:
1.76 schwarze 1098: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 1099:
1100: /* Skip items outside lists. */
1101:
1102: if (tok == MDOC_It) {
1103: for (n = mdoc->last; n; n = n->parent)
1.114 schwarze 1104: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1105: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.95 schwarze 1106: break;
1107: if (n == NULL) {
1108: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1109: line, ppos, "It %s", buf + *pos);
1.106 schwarze 1110: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 1111: rew_elem(mdoc, MDOC_br);
1.107 schwarze 1112: return;
1.95 schwarze 1113: }
1114: }
1.43 schwarze 1115:
1.32 schwarze 1116: /* Close out prior implicit scope. */
1.12 schwarze 1117:
1.106 schwarze 1118: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1119: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1120: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1121: }
1122:
1.32 schwarze 1123: /*
1.68 schwarze 1124: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1125: * macro openings. Implicit ones first close out prior scope
1126: * (seen above). Delay opening the head until necessary to
1127: * allow leading punctuation to print. Special consideration
1128: * for `It -column', which has phrase-part syntax instead of
1129: * regular child nodes.
1130: */
1131:
1.108 schwarze 1132: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1133: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1134: head = body = NULL;
1.1 kristaps 1135:
1.32 schwarze 1136: /*
1.73 schwarze 1137: * Exception: Heads of `It' macros in `-diag' lists are not
1138: * parsed, even though `It' macros in general are parsed.
1139: */
1.107 schwarze 1140:
1.109 schwarze 1141: parsed = tok != MDOC_It ||
1142: mdoc->last->parent->tok != MDOC_Bl ||
1143: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1144:
1145: /*
1.32 schwarze 1146: * The `Nd' macro has all arguments in its body: it's a hybrid
1147: * of block partial-explicit and full-implicit. Stupid.
1148: */
1.12 schwarze 1149:
1.106 schwarze 1150: if (tok == MDOC_Nd) {
1151: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1152: rew_last(mdoc, head);
1.106 schwarze 1153: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1154: }
1155:
1.106 schwarze 1156: if (tok == MDOC_Bk)
1.80 schwarze 1157: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1158:
1.106 schwarze 1159: ac = ARGS_PEND;
1160: for (;;) {
1.32 schwarze 1161: la = *pos;
1.106 schwarze 1162: lac = ac;
1.76 schwarze 1163: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1164: if (ac == ARGS_PUNCT)
1.52 schwarze 1165: break;
1.106 schwarze 1166: if (ac == ARGS_EOLN) {
1167: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1168: break;
1169: /*
1170: * This is necessary: if the last token on a
1171: * line is a `Ta' or tab, then we'll get
1172: * ARGS_EOLN, so we must be smart enough to
1173: * reopen our scope if the last parse was a
1174: * phrase or partial phrase.
1175: */
1.106 schwarze 1176: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1177: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1178: break;
1.41 schwarze 1179: }
1180:
1.88 schwarze 1181: /*
1.46 schwarze 1182: * Emit leading punctuation (i.e., punctuation before
1183: * the MDOC_HEAD) for non-phrase types.
1184: */
1.32 schwarze 1185:
1.106 schwarze 1186: if (head == NULL &&
1187: ac != ARGS_PEND &&
1188: ac != ARGS_PHRASE &&
1189: ac != ARGS_PPHRASE &&
1190: ac != ARGS_QWORD &&
1191: mdoc_isdelim(p) == DELIM_OPEN) {
1192: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1193: continue;
1194: }
1195:
1.46 schwarze 1196: /* Open a head if one hasn't been opened. */
1.32 schwarze 1197:
1.106 schwarze 1198: if (head == NULL)
1199: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1200:
1.106 schwarze 1201: if (ac == ARGS_PHRASE ||
1202: ac == ARGS_PEND ||
1203: ac == ARGS_PPHRASE) {
1.107 schwarze 1204:
1.46 schwarze 1205: /*
1206: * If we haven't opened a body yet, rewind the
1207: * head; if we have, rewind that instead.
1208: */
1209:
1.106 schwarze 1210: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1211: mdoc, tok, line, ppos);
1212: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1213:
1214: /*
1215: * Process phrases: set whether we're in a
1216: * partial-phrase (this effects line handling)
1217: * then call down into the phrase parser.
1218: */
1219:
1.106 schwarze 1220: if (ac == ARGS_PPHRASE)
1.76 schwarze 1221: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1222: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1223: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1224: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1225: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1226: continue;
1227: }
1228:
1.109 schwarze 1229: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1230: break;
1.32 schwarze 1231: }
1.1 kristaps 1232:
1.121 schwarze 1233: if (blk->flags & MDOC_VALID)
1234: return;
1.106 schwarze 1235: if (head == NULL)
1236: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1237: if (nl)
1238: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1239: if (body != NULL)
1.46 schwarze 1240: goto out;
1.29 schwarze 1241:
1242: /*
1.34 schwarze 1243: * If there is an open (i.e., unvalidated) sub-block requiring
1244: * explicit close-out, postpone switching the current block from
1245: * head to body until the rew_sub() call closing out that
1246: * sub-block.
1.29 schwarze 1247: */
1.76 schwarze 1248: for (n = mdoc->last; n && n != head; n = n->parent) {
1.107 schwarze 1249: if (n->type == MDOC_BLOCK &&
1250: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1251: ! (n->flags & MDOC_VALID)) {
1.29 schwarze 1252: n->pending = head;
1.107 schwarze 1253: return;
1.29 schwarze 1254: }
1255: }
1.54 schwarze 1256:
1.32 schwarze 1257: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1258:
1.106 schwarze 1259: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1260: mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1261: out:
1.106 schwarze 1262: if (mdoc->flags & MDOC_FREECOL) {
1263: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1264: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1265: mdoc->flags &= ~MDOC_FREECOL;
1266: }
1.1 kristaps 1267: }
1268:
1.107 schwarze 1269: static void
1.1 kristaps 1270: blk_part_imp(MACRO_PROT_ARGS)
1271: {
1.43 schwarze 1272: int la, nl;
1.36 schwarze 1273: enum margserr ac;
1.1 kristaps 1274: char *p;
1.32 schwarze 1275: struct mdoc_node *blk; /* saved block context */
1276: struct mdoc_node *body; /* saved body context */
1277: struct mdoc_node *n;
1.1 kristaps 1278:
1.76 schwarze 1279: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1280:
1.32 schwarze 1281: /*
1282: * A macro that spans to the end of the line. This is generally
1283: * (but not necessarily) called as the first macro. The block
1284: * has a head as the immediate child, which is always empty,
1285: * followed by zero or more opening punctuation nodes, then the
1286: * body (which may be empty, depending on the macro), then zero
1287: * or more closing punctuation nodes.
1288: */
1.22 schwarze 1289:
1.106 schwarze 1290: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.118 schwarze 1291: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1292:
1.32 schwarze 1293: /*
1294: * Open the body scope "on-demand", that is, after we've
1295: * processed all our the leading delimiters (open parenthesis,
1296: * etc.).
1297: */
1.1 kristaps 1298:
1.32 schwarze 1299: for (body = NULL; ; ) {
1.22 schwarze 1300: la = *pos;
1.76 schwarze 1301: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1302: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1303: break;
1304:
1.106 schwarze 1305: if (body == NULL && ac != ARGS_QWORD &&
1306: mdoc_isdelim(p) == DELIM_OPEN) {
1307: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1308: continue;
1.80 schwarze 1309: }
1.1 kristaps 1310:
1.106 schwarze 1311: if (body == NULL)
1312: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1313:
1.109 schwarze 1314: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1315: break;
1.32 schwarze 1316: }
1.106 schwarze 1317: if (body == NULL)
1318: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1319:
1.47 schwarze 1320: /*
1321: * If there is an open sub-block requiring explicit close-out,
1322: * postpone closing out the current block
1323: * until the rew_sub() call closing out the sub-block.
1324: */
1.107 schwarze 1325:
1.76 schwarze 1326: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1327: n = n->parent) {
1.106 schwarze 1328: if (n->type == MDOC_BLOCK &&
1329: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1330: ! (n->flags & MDOC_VALID)) {
1.76 schwarze 1331: make_pending(n, tok, mdoc, line, ppos);
1.106 schwarze 1332: mdoc_endbody_alloc(mdoc, line, ppos,
1333: tok, body, ENDBODY_NOSPACE);
1.107 schwarze 1334: return;
1.47 schwarze 1335: }
1336: }
1.91 schwarze 1337: assert(n == body);
1.120 schwarze 1338: rew_last(mdoc, body);
1.106 schwarze 1339: if (nl)
1340: append_delims(mdoc, line, pos, buf);
1.122 ! schwarze 1341: rew_pending(mdoc, blk);
1.74 schwarze 1342:
1343: /* Move trailing .Ns out of scope. */
1344:
1345: for (n = body->child; n && n->next; n = n->next)
1346: /* Do nothing. */ ;
1.106 schwarze 1347: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1348: mdoc_node_relink(mdoc, n);
1.1 kristaps 1349: }
1350:
1.107 schwarze 1351: static void
1.1 kristaps 1352: blk_part_exp(MACRO_PROT_ARGS)
1353: {
1.37 schwarze 1354: int la, nl;
1.36 schwarze 1355: enum margserr ac;
1.32 schwarze 1356: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1357: char *p;
1358:
1.76 schwarze 1359: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1360:
1.32 schwarze 1361: /*
1362: * The opening of an explicit macro having zero or more leading
1363: * punctuation nodes; a head with optional single element (the
1364: * case of `Eo'); and a body that may be empty.
1365: */
1.22 schwarze 1366:
1.106 schwarze 1367: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1368: head = NULL;
1369: for (;;) {
1.22 schwarze 1370: la = *pos;
1.76 schwarze 1371: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1372: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1373: break;
1374:
1.32 schwarze 1375: /* Flush out leading punctuation. */
1376:
1.106 schwarze 1377: if (head == NULL && ac != ARGS_QWORD &&
1378: mdoc_isdelim(p) == DELIM_OPEN) {
1379: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1380: continue;
1.80 schwarze 1381: }
1.32 schwarze 1382:
1.106 schwarze 1383: if (head == NULL) {
1384: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1385: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1386: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1387: rew_last(mdoc, head);
1388: mdoc_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1389: if (tok == MDOC_Eo)
1.32 schwarze 1390: continue;
1391: }
1392:
1.109 schwarze 1393: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1394: break;
1.1 kristaps 1395: }
1396:
1.32 schwarze 1397: /* Clean-up to leave in a consistent state. */
1398:
1.119 schwarze 1399: if (head == NULL) {
1400: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.106 schwarze 1401: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1402: }
1.106 schwarze 1403: if (nl)
1404: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1405: }
1406:
1.107 schwarze 1407: static void
1.1 kristaps 1408: in_line_argn(MACRO_PROT_ARGS)
1409: {
1.37 schwarze 1410: int la, flushed, j, maxargs, nl;
1.36 schwarze 1411: enum margserr ac;
1412: struct mdoc_arg *arg;
1413: char *p;
1414: enum mdoct ntok;
1.1 kristaps 1415:
1.112 schwarze 1416: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1417:
1.32 schwarze 1418: /*
1419: * A line macro that has a fixed number of arguments (maxargs).
1420: * Only open the scope once the first non-leading-punctuation is
1421: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1422: * keep it open until the maximum number of arguments are
1423: * exhausted.
1424: */
1.1 kristaps 1425:
1426: switch (tok) {
1.88 schwarze 1427: case MDOC_Ap:
1.1 kristaps 1428: /* FALLTHROUGH */
1.88 schwarze 1429: case MDOC_Ns:
1.1 kristaps 1430: /* FALLTHROUGH */
1.88 schwarze 1431: case MDOC_Ux:
1.1 kristaps 1432: maxargs = 0;
1433: break;
1.88 schwarze 1434: case MDOC_Bx:
1.64 schwarze 1435: /* FALLTHROUGH */
1.89 schwarze 1436: case MDOC_Es:
1437: /* FALLTHROUGH */
1.88 schwarze 1438: case MDOC_Xr:
1.28 schwarze 1439: maxargs = 2;
1440: break;
1.1 kristaps 1441: default:
1442: maxargs = 1;
1443: break;
1444: }
1445:
1.108 schwarze 1446: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1447:
1.112 schwarze 1448: p = NULL;
1449: flushed = j = 0;
1450: for (;;) {
1.22 schwarze 1451: la = *pos;
1.76 schwarze 1452: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.112 schwarze 1453: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1454: if (j < 2 && tok == MDOC_Pf)
1455: mandoc_vmsg(MANDOCERR_PF_SKIP,
1456: mdoc->parse, line, ppos, "Pf %s",
1457: p == NULL ? "at eol" : p);
1.1 kristaps 1458: break;
1.112 schwarze 1459: }
1.1 kristaps 1460:
1.106 schwarze 1461: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1462: ac != ARGS_QWORD && j == 0 &&
1463: mdoc_isdelim(p) == DELIM_OPEN) {
1464: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1465: continue;
1.106 schwarze 1466: } else if (j == 0)
1467: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.32 schwarze 1468:
1469: if (j == maxargs && ! flushed) {
1.105 schwarze 1470: rew_elem(mdoc, tok);
1.32 schwarze 1471: flushed = 1;
1472: }
1473:
1.112 schwarze 1474: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1475: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1476:
1.106 schwarze 1477: if (ntok != MDOC_MAX) {
1.105 schwarze 1478: if ( ! flushed)
1479: rew_elem(mdoc, tok);
1.1 kristaps 1480: flushed = 1;
1.107 schwarze 1481: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.32 schwarze 1482: j++;
1.1 kristaps 1483: break;
1484: }
1485:
1.106 schwarze 1486: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1487: ac != ARGS_QWORD && ! flushed &&
1488: mdoc_isdelim(p) != DELIM_NONE) {
1.105 schwarze 1489: rew_elem(mdoc, tok);
1.1 kristaps 1490: flushed = 1;
1.28 schwarze 1491: }
1492:
1.106 schwarze 1493: dword(mdoc, line, la, p, DELIM_MAX,
1494: MDOC_JOIN & mdoc_macros[tok].flags);
1.32 schwarze 1495: j++;
1.1 kristaps 1496: }
1497:
1.112 schwarze 1498: if (j == 0) {
1.106 schwarze 1499: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.112 schwarze 1500: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1501: append_delims(mdoc, line, pos, buf);
1502: }
1.105 schwarze 1503: if ( ! flushed)
1504: rew_elem(mdoc, tok);
1.106 schwarze 1505: if (nl)
1506: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1507: }
1508:
1.107 schwarze 1509: static void
1.1 kristaps 1510: in_line_eoln(MACRO_PROT_ARGS)
1511: {
1.36 schwarze 1512: struct mdoc_arg *arg;
1.1 kristaps 1513:
1.53 schwarze 1514: if (tok == MDOC_Pp)
1.76 schwarze 1515: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.53 schwarze 1516:
1.108 schwarze 1517: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1518: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1519: if (parse_rest(mdoc, tok, line, pos, buf))
1520: return;
1521: rew_elem(mdoc, tok);
1522: }
1523:
1524: /*
1525: * The simplest argument parser available: Parse the remaining
1526: * words until the end of the phrase or line and return 0
1527: * or until the next macro, call that macro, and return 1.
1528: */
1529: static int
1530: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1531: {
1532: int la;
1.1 kristaps 1533:
1534: for (;;) {
1535: la = *pos;
1.109 schwarze 1536: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1537: return(0);
1.109 schwarze 1538: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1539: return(1);
1.1 kristaps 1540: }
1.28 schwarze 1541: }
1542:
1.107 schwarze 1543: static void
1.28 schwarze 1544: ctx_synopsis(MACRO_PROT_ARGS)
1545: {
1.37 schwarze 1546:
1.107 schwarze 1547: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1548: in_line(mdoc, tok, line, ppos, pos, buf);
1549: else if (tok == MDOC_Nm)
1550: blk_full(mdoc, tok, line, ppos, pos, buf);
1551: else {
1552: assert(tok == MDOC_Vt);
1553: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1554: }
1.1 kristaps 1555: }
1556:
1.17 schwarze 1557: /*
1558: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1559: * They're unusual because they're basically free-form text until a
1560: * macro is encountered.
1561: */
1.107 schwarze 1562: static void
1.46 schwarze 1563: phrase_ta(MACRO_PROT_ARGS)
1564: {
1.78 schwarze 1565: struct mdoc_node *n;
1.46 schwarze 1566:
1.78 schwarze 1567: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1568:
1.78 schwarze 1569: n = mdoc->last;
1.115 schwarze 1570: while (n != NULL &&
1571: (n->tok != MDOC_Bl || n->flags & (MDOC_VALID | MDOC_BREAK)))
1.78 schwarze 1572: n = n->parent;
1.107 schwarze 1573: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1574: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1575: line, ppos, "Ta");
1.107 schwarze 1576: return;
1.78 schwarze 1577: }
1.46 schwarze 1578:
1.78 schwarze 1579: /* Advance to the next column. */
1.106 schwarze 1580:
1581: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1582: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1583: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1584: }
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