Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.123
1.123 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.122 2015/02/02 04:26:03 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,
1.123 ! schwarze 36: REWIND_FORCE
1.35 schwarze 37: };
1.1 kristaps 38:
1.107 schwarze 39: static void blk_full(MACRO_PROT_ARGS);
40: static void blk_exp_close(MACRO_PROT_ARGS);
41: static void blk_part_exp(MACRO_PROT_ARGS);
42: static void blk_part_imp(MACRO_PROT_ARGS);
43: static void ctx_synopsis(MACRO_PROT_ARGS);
44: static void in_line_eoln(MACRO_PROT_ARGS);
45: static void in_line_argn(MACRO_PROT_ARGS);
46: static void in_line(MACRO_PROT_ARGS);
47: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 48:
1.106 schwarze 49: static void dword(struct mdoc *, int, int, const char *,
1.80 schwarze 50: enum mdelim, int);
1.106 schwarze 51: static void append_delims(struct mdoc *, int, int *, char *);
1.111 schwarze 52: static enum mdoct lookup(struct mdoc *, enum mdoct,
53: int, int, const char *);
1.109 schwarze 54: static int macro_or_word(MACRO_PROT_ARGS, int);
1.49 schwarze 55: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 56: struct mdoc *, int, int);
1.110 schwarze 57: static int parse_rest(struct mdoc *, enum mdoct,
58: int, int *, char *);
1.88 schwarze 59: static enum mdoct rew_alt(enum mdoct);
60: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.36 schwarze 61: const struct mdoc_node *);
1.105 schwarze 62: static void rew_elem(struct mdoc *, enum mdoct);
63: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.122 schwarze 64: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.106 schwarze 65: static void rew_sub(enum mdoc_type, struct mdoc *,
1.36 schwarze 66: enum mdoct, int, int);
1.1 kristaps 67:
68: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 69: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 70: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
71: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
72: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 73: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
74: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
75: { in_line_eoln, 0 }, /* Pp */
76: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
77: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 78: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 79: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 80: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 81: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
82: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 86: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 91: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
93: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 97: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 99: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
100: { blk_full, MDOC_JOIN }, /* Nd */
101: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 102: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 104: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
105: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 106: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 107: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 108: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 109: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 110: { in_line_eoln, MDOC_JOIN }, /* %A */
111: { in_line_eoln, MDOC_JOIN }, /* %B */
112: { in_line_eoln, MDOC_JOIN }, /* %D */
113: { in_line_eoln, MDOC_JOIN }, /* %I */
114: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 115: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 116: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 117: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 118: { in_line_eoln, MDOC_JOIN }, /* %R */
119: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 120: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 121: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
122: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
123: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
124: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
125: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 127: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
128: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
129: { blk_full, MDOC_EXPLICIT }, /* Bf */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
131: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
132: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 133: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
134: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
135: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 136: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
137: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
138: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
140: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
141: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
142: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
143: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 144: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 146: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 147: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 148: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 150: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
151: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 152: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
153: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 154: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 155: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
156: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
157: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
158: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
161: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
162: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
163: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
164: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 165: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 166: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
167: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
168: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
169: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
170: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 171: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 172: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
173: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 174: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 175: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 176: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
177: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 178: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
179: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
180: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
181: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
182: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
183: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
184: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 185: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 186: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 187: { in_line_eoln, 0 }, /* Bt */
188: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 189: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 190: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 191: { in_line, 0 }, /* Lb */
1.80 schwarze 192: { in_line_eoln, 0 }, /* Lp */
193: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
194: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
195: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
196: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
197: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
198: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
199: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
200: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 201: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
202: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 203: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 204: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 205: { in_line_eoln, 0 }, /* br */
206: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 207: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 208: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 209: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 210: };
211:
212: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
213:
214:
215: /*
216: * This is called at the end of parsing. It must traverse up the tree,
217: * closing out open [implicit] scopes. Obviously, open explicit scopes
218: * are errors.
219: */
1.107 schwarze 220: void
1.76 schwarze 221: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 222: {
223: struct mdoc_node *n;
224:
225: /* Scan for open explicit scopes. */
226:
1.107 schwarze 227: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 228: mdoc->last->parent : mdoc->last;
1.1 kristaps 229:
1.56 schwarze 230: for ( ; n; n = n->parent)
1.107 schwarze 231: if (n->type == MDOC_BLOCK &&
232: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 233: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
234: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 235:
1.22 schwarze 236: /* Rewind to the first. */
237:
1.105 schwarze 238: rew_last(mdoc, mdoc->first);
1.1 kristaps 239: }
240:
1.22 schwarze 241: /*
1.109 schwarze 242: * Look up the macro at *p called by "from",
243: * or as a line macro if from == MDOC_MAX.
1.22 schwarze 244: */
1.36 schwarze 245: static enum mdoct
1.111 schwarze 246: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.21 schwarze 247: {
1.36 schwarze 248: enum mdoct res;
1.1 kristaps 249:
1.109 schwarze 250: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
251: res = mdoc_hash_find(p);
1.111 schwarze 252: if (res != MDOC_MAX) {
253: if (mdoc_macros[res].flags & MDOC_CALLABLE)
254: return(res);
255: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
256: mandoc_msg(MANDOCERR_MACRO_CALL,
257: mdoc->parse, line, ppos, p);
258: }
1.109 schwarze 259: }
1.1 kristaps 260: return(MDOC_MAX);
261: }
262:
1.122 schwarze 263: /*
264: * Rewind up to and including a specific node.
265: */
1.105 schwarze 266: static void
1.22 schwarze 267: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 268: {
1.63 schwarze 269: struct mdoc_node *n, *np;
1.1 kristaps 270:
271: assert(to);
272: mdoc->next = MDOC_NEXT_SIBLING;
273: while (mdoc->last != to) {
1.122 schwarze 274: if ( ! (mdoc->last->flags & MDOC_VALID))
275: mdoc->last->lastline = to->lastline -
276: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.63 schwarze 277: /*
278: * Save the parent here, because we may delete the
1.76 schwarze 279: * mdoc->last node in the post-validation phase and reset
280: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 281: * out to be lost.
282: */
283: np = mdoc->last->parent;
1.105 schwarze 284: mdoc_valid_post(mdoc);
1.61 schwarze 285: n = mdoc->last;
1.63 schwarze 286: mdoc->last = np;
1.1 kristaps 287: assert(mdoc->last);
1.61 schwarze 288: mdoc->last->last = n;
1.1 kristaps 289: }
1.105 schwarze 290: mdoc_valid_post(mdoc);
1.1 kristaps 291: }
292:
1.22 schwarze 293: /*
1.122 schwarze 294: * Rewind up to a specific block, including all blocks that broke it.
295: */
296: static void
297: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
298: {
299:
300: rew_last(mdoc, n);
301:
302: if (n->type != MDOC_BLOCK)
303: return;
304:
305: while ((n = n->pending) != NULL) {
306: rew_last(mdoc, n);
307: if (n->type == MDOC_HEAD)
308: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
309: }
310: }
311:
312: /*
1.48 schwarze 313: * For a block closing macro, return the corresponding opening one.
314: * Otherwise, return the macro itself.
1.22 schwarze 315: */
1.34 schwarze 316: static enum mdoct
317: rew_alt(enum mdoct tok)
1.1 kristaps 318: {
319: switch (tok) {
1.88 schwarze 320: case MDOC_Ac:
1.1 kristaps 321: return(MDOC_Ao);
1.88 schwarze 322: case MDOC_Bc:
1.1 kristaps 323: return(MDOC_Bo);
1.88 schwarze 324: case MDOC_Brc:
1.1 kristaps 325: return(MDOC_Bro);
1.88 schwarze 326: case MDOC_Dc:
1.1 kristaps 327: return(MDOC_Do);
1.88 schwarze 328: case MDOC_Ec:
1.1 kristaps 329: return(MDOC_Eo);
1.88 schwarze 330: case MDOC_Ed:
1.1 kristaps 331: return(MDOC_Bd);
1.88 schwarze 332: case MDOC_Ef:
1.1 kristaps 333: return(MDOC_Bf);
1.88 schwarze 334: case MDOC_Ek:
1.1 kristaps 335: return(MDOC_Bk);
1.88 schwarze 336: case MDOC_El:
1.1 kristaps 337: return(MDOC_Bl);
1.88 schwarze 338: case MDOC_Fc:
1.1 kristaps 339: return(MDOC_Fo);
1.88 schwarze 340: case MDOC_Oc:
1.1 kristaps 341: return(MDOC_Oo);
1.88 schwarze 342: case MDOC_Pc:
1.1 kristaps 343: return(MDOC_Po);
1.88 schwarze 344: case MDOC_Qc:
1.1 kristaps 345: return(MDOC_Qo);
1.88 schwarze 346: case MDOC_Re:
1.1 kristaps 347: return(MDOC_Rs);
1.88 schwarze 348: case MDOC_Sc:
1.1 kristaps 349: return(MDOC_So);
1.88 schwarze 350: case MDOC_Xc:
1.1 kristaps 351: return(MDOC_Xo);
352: default:
1.48 schwarze 353: return(tok);
1.1 kristaps 354: }
355: /* NOTREACHED */
356: }
357:
1.48 schwarze 358: /*
359: * Rewinding to tok, how do we have to handle *p?
360: * REWIND_NONE: *p would delimit tok, but no tok scope is open
361: * inside *p, so there is no need to rewind anything at all.
362: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
363: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 schwarze 364: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.1 kristaps 365: */
1.35 schwarze 366: static enum rew
1.88 schwarze 367: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.34 schwarze 368: const struct mdoc_node *p)
1.1 kristaps 369: {
370:
1.50 schwarze 371: /*
372: * No matching token, no delimiting block, no broken block.
373: * This can happen when full implicit macros are called for
374: * the first time but try to rewind their previous
375: * instance anyway.
376: */
1.1 kristaps 377: if (MDOC_ROOT == p->type)
1.123 ! schwarze 378: return(REWIND_NONE);
1.50 schwarze 379:
380: /*
1.88 schwarze 381: * When starting to rewind, skip plain text
1.50 schwarze 382: * and nodes that have already been rewound.
383: */
1.117 schwarze 384: if (p->type == MDOC_TEXT || p->flags & (MDOC_VALID | MDOC_BREAK))
1.48 schwarze 385: return(REWIND_MORE);
386:
1.50 schwarze 387: /*
388: * The easiest case: Found a matching token.
389: * This applies to both blocks and elements.
390: */
1.48 schwarze 391: tok = rew_alt(tok);
392: if (tok == p->tok)
1.123 ! schwarze 393: return(type == p->type ? REWIND_THIS : REWIND_MORE);
1.48 schwarze 394:
1.50 schwarze 395: /*
396: * While elements do require rewinding for themselves,
397: * they never affect rewinding of other nodes.
398: */
1.48 schwarze 399: if (MDOC_ELEM == p->type)
400: return(REWIND_MORE);
1.1 kristaps 401:
1.50 schwarze 402: /*
403: * Blocks delimited by our target token get REWIND_MORE.
1.88 schwarze 404: * Blocks delimiting our target token get REWIND_NONE.
1.50 schwarze 405: */
1.1 kristaps 406: switch (tok) {
1.88 schwarze 407: case MDOC_It:
1.1 kristaps 408: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 409: return(REWIND_NONE);
1.1 kristaps 410: break;
1.88 schwarze 411: case MDOC_Nm:
1.51 schwarze 412: return(REWIND_NONE);
1.88 schwarze 413: case MDOC_Nd:
1.12 schwarze 414: /* FALLTHROUGH */
1.88 schwarze 415: case MDOC_Ss:
1.1 kristaps 416: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 417: return(REWIND_NONE);
1.1 kristaps 418: /* FALLTHROUGH */
1.88 schwarze 419: case MDOC_Sh:
1.95 schwarze 420: if (MDOC_ROOT == p->parent->type)
421: return(REWIND_THIS);
1.48 schwarze 422: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
423: MDOC_Sh == p->tok)
424: return(REWIND_MORE);
1.1 kristaps 425: break;
426: default:
427: break;
428: }
429:
1.50 schwarze 430: /*
431: * Default block rewinding rules.
1.123 ! schwarze 432: * In particular, let all blocks rewind Nm children.
1.102 schwarze 433: * Do not warn again when closing a block,
434: * since closing the body already warned.
1.50 schwarze 435: */
1.123 ! schwarze 436: if (MDOC_Nm == p->tok ||
! 437: MDOC_BLOCK == type || MDOC_BLOCK == p->type)
1.50 schwarze 438: return(REWIND_MORE);
439:
440: /*
1.59 schwarze 441: * By default, closing out full blocks
1.123 ! schwarze 442: * forces closing of broken explicit blocks.
1.50 schwarze 443: */
1.123 ! schwarze 444: return (REWIND_FORCE);
1.1 kristaps 445: }
446:
1.105 schwarze 447: static void
1.34 schwarze 448: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 449: {
450: struct mdoc_node *n;
451:
452: n = mdoc->last;
453: if (MDOC_ELEM != n->type)
454: n = n->parent;
455: assert(MDOC_ELEM == n->type);
456: assert(tok == n->tok);
1.105 schwarze 457: rew_last(mdoc, n);
1.1 kristaps 458: }
459:
1.47 schwarze 460: /*
461: * We are trying to close a block identified by tok,
462: * but the child block *broken is still open.
463: * Thus, postpone closing the tok block
1.123 ! schwarze 464: * until the rew_pending() call closing *broken.
1.47 schwarze 465: */
466: static int
467: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.76 schwarze 468: struct mdoc *mdoc, int line, int ppos)
1.47 schwarze 469: {
470: struct mdoc_node *breaker;
471:
472: /*
473: * Iterate backwards, searching for the block matching tok,
474: * that is, the block breaking the *broken block.
475: */
476: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
477:
478: /*
1.114 schwarze 479: * If the *broken block (Z) is already broken and we
480: * encounter its breaker (B), make the tok block (A)
481: * pending on that inner breaker (B).
482: * Graphically, [A breaker=[B! broken=[Z->B B] tok=A] Z]
483: * becomes breaker=[A broken=[B! [Z->B B] tok=A] Z]
484: * and finally [A! [B!->A [Z->B B] A] Z].
485: * In these graphics, "->" indicates the "pending"
486: * pointer and "!" indicates the MDOC_BREAK flag.
487: * Each of the cases gets one additional pointer (B->A)
488: * and one additional flag (A!).
1.47 schwarze 489: */
490: if (breaker == broken->pending) {
491: broken = breaker;
492: continue;
493: }
494:
1.48 schwarze 495: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 496: continue;
497: if (MDOC_BODY == broken->type)
498: broken = broken->parent;
499:
500: /*
501: * Found the breaker.
1.114 schwarze 502: * If another, outer breaker (X) is already pending on
503: * the *broken block (B), we must not clobber the link
1.47 schwarze 504: * to the outer breaker, but make it pending on the
1.114 schwarze 505: * new, now inner breaker (A).
506: * Graphically, [X! breaker=[A broken=[B->X X] tok=A] B]
507: * becomes [X! breaker=[A->X broken=[B X] tok=A] B]
508: * and finally [X! [A!->X [B->A X] A] B].
1.47 schwarze 509: */
510: if (broken->pending) {
511: struct mdoc_node *taker;
512:
513: /*
1.114 schwarze 514: * If the inner breaker (A) is already broken,
515: * too, it cannot take on the outer breaker (X)
516: * but must hand it on to its own breakers (Y):
517: * [X! [Y! breaker=[A->Y Y] broken=[B->X X] tok=A] B]
518: * [X! take=[Y!->X brea=[A->Y Y] brok=[B X] tok=A] B]
519: * and finally [X! [Y!->X [A!->Y Y] [B->A X] A] B].
1.47 schwarze 520: */
521: taker = breaker;
522: while (taker->pending)
523: taker = taker->pending;
524: taker->pending = broken->pending;
525: }
1.114 schwarze 526:
527: /*
528: * Now we have reduced the situation to the simplest
529: * case, which is just breaker=[A broken=[B tok=A] B]
530: * and becomes [A! [B->A A] B].
531: */
1.47 schwarze 532: broken->pending = breaker;
1.114 schwarze 533: breaker->flags |= MDOC_BREAK;
1.122 schwarze 534: if (breaker->body != NULL)
535: breaker->body->flags |= MDOC_BREAK;
1.94 schwarze 536: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.88 schwarze 537: "%s breaks %s", mdoc_macronames[tok],
538: mdoc_macronames[broken->tok]);
1.47 schwarze 539: return(1);
540: }
541:
542: /*
543: * Found no matching block for tok.
544: * Are you trying to close a block that is not open?
545: */
546: return(0);
547: }
548:
1.106 schwarze 549: static void
1.88 schwarze 550: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.34 schwarze 551: enum mdoct tok, int line, int ppos)
1.1 kristaps 552: {
1.116 schwarze 553: struct mdoc_node *n, *to;
1.1 kristaps 554:
1.116 schwarze 555: to = NULL;
1.76 schwarze 556: n = mdoc->last;
1.48 schwarze 557: while (n) {
558: switch (rew_dohalt(tok, t, n)) {
1.88 schwarze 559: case REWIND_NONE:
1.116 schwarze 560: if (to == NULL)
561: return;
562: n = to;
563: break;
1.88 schwarze 564: case REWIND_THIS:
1.81 schwarze 565: n->lastline = line -
1.106 schwarze 566: (mdoc->flags & MDOC_NEWLINE &&
567: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.48 schwarze 568: break;
1.88 schwarze 569: case REWIND_FORCE:
1.94 schwarze 570: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.88 schwarze 571: line, ppos, "%s breaks %s",
572: mdoc_macronames[tok],
573: mdoc_macronames[n->tok]);
1.59 schwarze 574: /* FALLTHROUGH */
1.88 schwarze 575: case REWIND_MORE:
1.81 schwarze 576: n->lastline = line -
1.106 schwarze 577: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.116 schwarze 578: to = n;
1.48 schwarze 579: n = n->parent;
580: continue;
1.22 schwarze 581: }
1.48 schwarze 582: break;
1.1 kristaps 583: }
584: assert(n);
1.122 schwarze 585: rew_pending(mdoc, n);
1.1 kristaps 586: }
587:
1.66 schwarze 588: /*
589: * Allocate a word and check whether it's punctuation or not.
590: * Punctuation consists of those tokens found in mdoc_isdelim().
591: */
1.106 schwarze 592: static void
1.80 schwarze 593: dword(struct mdoc *mdoc, int line, int col, const char *p,
594: enum mdelim d, int may_append)
1.66 schwarze 595: {
1.88 schwarze 596:
1.106 schwarze 597: if (d == DELIM_MAX)
1.66 schwarze 598: d = mdoc_isdelim(p);
599:
1.80 schwarze 600: if (may_append &&
1.106 schwarze 601: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
602: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
603: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 604: mdoc_word_append(mdoc, p);
1.106 schwarze 605: return;
1.80 schwarze 606: }
607:
1.106 schwarze 608: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 609:
1.71 schwarze 610: /*
1.100 schwarze 611: * If the word consists of a bare delimiter,
612: * flag the new node accordingly,
613: * unless doing so was vetoed by the invoking macro.
614: * Always clear the veto, it is only valid for one word.
1.71 schwarze 615: */
616:
1.100 schwarze 617: if (d == DELIM_OPEN)
618: mdoc->last->flags |= MDOC_DELIMO;
619: else if (d == DELIM_CLOSE &&
620: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 621: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 622: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 623: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 624: }
1.1 kristaps 625:
1.106 schwarze 626: static void
1.76 schwarze 627: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 628: {
1.109 schwarze 629: char *p;
1.42 schwarze 630: int la;
1.1 kristaps 631:
1.106 schwarze 632: if (buf[*pos] == '\0')
633: return;
1.1 kristaps 634:
635: for (;;) {
1.42 schwarze 636: la = *pos;
1.109 schwarze 637: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 638: break;
1.80 schwarze 639: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 640:
1.42 schwarze 641: /*
642: * If we encounter end-of-sentence symbols, then trigger
643: * the double-space.
644: *
1.68 schwarze 645: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 646: * the last symbol, such that `. )' will cause the
647: * correct double-spacing. However, (1) groff isn't
648: * smart enough to do this and (2) it would require
649: * knowing which symbols break this behaviour, for
1.68 schwarze 650: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 651: */
1.106 schwarze 652:
1.84 schwarze 653: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 654: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 655: }
656: }
657:
658: /*
1.109 schwarze 659: * Parse one word.
660: * If it is a macro, call it and return 1.
661: * Otherwise, allocate it and return 0.
662: */
663: static int
664: macro_or_word(MACRO_PROT_ARGS, int parsed)
665: {
666: char *p;
667: enum mdoct ntok;
668:
669: p = buf + ppos;
670: ntok = MDOC_MAX;
1.113 schwarze 671: if (*p == '"')
1.109 schwarze 672: p++;
1.113 schwarze 673: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 674: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 675:
676: if (ntok == MDOC_MAX) {
677: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
678: mdoc_macros[tok].flags & MDOC_JOIN);
679: return(0);
680: } else {
681: if (mdoc_macros[tok].fp == in_line_eoln)
682: rew_elem(mdoc, tok);
683: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
684: if (tok == MDOC_MAX)
685: append_delims(mdoc, line, pos, buf);
686: return(1);
687: }
688: }
689:
690: /*
1.88 schwarze 691: * Close out block partial/full explicit.
1.1 kristaps 692: */
1.107 schwarze 693: static void
1.1 kristaps 694: blk_exp_close(MACRO_PROT_ARGS)
695: {
1.47 schwarze 696: struct mdoc_node *body; /* Our own body. */
1.104 schwarze 697: struct mdoc_node *endbody; /* Our own end marker. */
1.47 schwarze 698: struct mdoc_node *later; /* A sub-block starting later. */
1.122 schwarze 699: struct mdoc_node *n; /* Search back to our block. */
1.47 schwarze 700:
1.122 schwarze 701: int have_it, j, lastarg, maxargs, nl;
1.36 schwarze 702: enum margserr ac;
1.47 schwarze 703: enum mdoct atok, ntok;
1.1 kristaps 704: char *p;
705:
1.76 schwarze 706: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 707:
1.1 kristaps 708: switch (tok) {
1.88 schwarze 709: case MDOC_Ec:
1.1 kristaps 710: maxargs = 1;
711: break;
1.88 schwarze 712: case MDOC_Ek:
1.82 schwarze 713: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 714: /* FALLTHROUGH */
1.1 kristaps 715: default:
716: maxargs = 0;
717: break;
718: }
719:
1.47 schwarze 720: /*
721: * Search backwards for beginnings of blocks,
722: * both of our own and of pending sub-blocks.
723: */
1.107 schwarze 724:
1.116 schwarze 725: have_it = 0;
1.47 schwarze 726: atok = rew_alt(tok);
1.104 schwarze 727: body = endbody = later = NULL;
1.76 schwarze 728: for (n = mdoc->last; n; n = n->parent) {
1.117 schwarze 729: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.47 schwarze 730: continue;
731:
732: /* Remember the start of our own body. */
1.107 schwarze 733:
1.106 schwarze 734: if (n->type == MDOC_BODY && atok == n->tok) {
1.122 schwarze 735: if (n->end == ENDBODY_NOT) {
1.47 schwarze 736: body = n;
1.122 schwarze 737: n->lastline = line;
738: }
1.47 schwarze 739: continue;
740: }
741:
1.106 schwarze 742: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 743: continue;
1.116 schwarze 744:
745: if (n->tok == MDOC_It) {
746: have_it = 1;
747: continue;
748: }
749:
1.47 schwarze 750: if (atok == n->tok) {
1.122 schwarze 751: n->lastline = line;
1.47 schwarze 752: assert(body);
753:
754: /*
755: * Found the start of our own block.
756: * When there is no pending sub block,
757: * just proceed to closing out.
758: */
1.107 schwarze 759:
1.116 schwarze 760: if (later == NULL ||
761: (tok == MDOC_El && !have_it))
1.47 schwarze 762: break;
763:
1.88 schwarze 764: /*
1.123 ! schwarze 765: * When there is a pending sub block, postpone
! 766: * closing out the current block until the
! 767: * rew_pending() closing out the sub-block.
1.47 schwarze 768: */
1.107 schwarze 769:
1.76 schwarze 770: make_pending(later, tok, mdoc, line, ppos);
1.47 schwarze 771:
772: /*
773: * Mark the place where the formatting - but not
774: * the scope - of the current block ends.
775: */
1.107 schwarze 776:
1.122 schwarze 777: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 778: atok, body, ENDBODY_SPACE);
1.107 schwarze 779:
780: /*
781: * If a block closing macro taking arguments
782: * breaks another block, put the arguments
1.122 schwarze 783: * into the end marker.
1.107 schwarze 784: */
785:
1.122 schwarze 786: if (maxargs)
1.104 schwarze 787: mdoc->next = MDOC_NEXT_CHILD;
1.47 schwarze 788: break;
789: }
790:
791: /*
792: * When finding an open sub block, remember the last
793: * open explicit block, or, in case there are only
794: * implicit ones, the first open implicit block.
795: */
1.107 schwarze 796:
1.116 schwarze 797: if (later == NULL ||
798: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.47 schwarze 799: later = n;
800: }
1.122 schwarze 801:
802: if (body == NULL) {
803: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
804: line, ppos, mdoc_macronames[tok]);
805: if (maxargs && endbody == NULL) {
806: /*
807: * Stray .Ec without previous .Eo:
808: * Break the output line, keep the arguments.
809: */
810: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
811: rew_elem(mdoc, MDOC_br);
812: }
813: } else if (endbody == NULL) {
814: rew_last(mdoc, body);
815: if (maxargs)
816: mdoc_tail_alloc(mdoc, line, ppos, atok);
817: }
1.47 schwarze 818:
1.106 schwarze 819: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
820: if (buf[*pos] != '\0')
1.93 schwarze 821: mandoc_vmsg(MANDOCERR_ARG_SKIP,
822: mdoc->parse, line, ppos,
823: "%s %s", mdoc_macronames[tok],
824: buf + *pos);
1.123 ! schwarze 825: if (endbody == NULL)
! 826: rew_pending(mdoc, n);
1.107 schwarze 827: return;
1.1 kristaps 828: }
829:
1.122 schwarze 830: if (endbody != NULL)
831: n = endbody;
1.104 schwarze 832: for (j = 0; ; j++) {
1.1 kristaps 833: lastarg = *pos;
834:
1.122 schwarze 835: if (j == maxargs && n != NULL) {
836: rew_pending(mdoc, n);
837: n = NULL;
1.1 kristaps 838: }
839:
1.76 schwarze 840: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 841: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 842: break;
843:
1.111 schwarze 844: ntok = ac == ARGS_QWORD ? MDOC_MAX :
845: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 846:
1.106 schwarze 847: if (ntok == MDOC_MAX) {
848: dword(mdoc, line, lastarg, p, DELIM_MAX,
849: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 850: continue;
851: }
1.1 kristaps 852:
1.122 schwarze 853: if (n != NULL) {
854: rew_pending(mdoc, n);
855: n = NULL;
1.36 schwarze 856: }
1.79 schwarze 857: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 858: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 859: break;
1.1 kristaps 860: }
861:
1.122 schwarze 862: if (n != NULL)
863: rew_pending(mdoc, n);
1.106 schwarze 864: if (nl)
865: append_delims(mdoc, line, pos, buf);
1.1 kristaps 866: }
867:
1.107 schwarze 868: static void
1.1 kristaps 869: in_line(MACRO_PROT_ARGS)
870: {
1.100 schwarze 871: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.36 schwarze 872: enum mdoct ntok;
873: enum margserr ac;
1.40 schwarze 874: enum mdelim d;
1.36 schwarze 875: struct mdoc_arg *arg;
876: char *p;
1.1 kristaps 877:
1.76 schwarze 878: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 879:
1.1 kristaps 880: /*
881: * Whether we allow ignored elements (those without content,
882: * usually because of reserved words) to squeak by.
883: */
1.32 schwarze 884:
1.1 kristaps 885: switch (tok) {
1.88 schwarze 886: case MDOC_An:
1.19 schwarze 887: /* FALLTHROUGH */
1.88 schwarze 888: case MDOC_Ar:
1.1 kristaps 889: /* FALLTHROUGH */
1.88 schwarze 890: case MDOC_Fl:
1.1 kristaps 891: /* FALLTHROUGH */
1.88 schwarze 892: case MDOC_Mt:
1.18 schwarze 893: /* FALLTHROUGH */
1.88 schwarze 894: case MDOC_Nm:
1.19 schwarze 895: /* FALLTHROUGH */
1.88 schwarze 896: case MDOC_Pa:
1.1 kristaps 897: nc = 1;
898: break;
899: default:
900: nc = 0;
901: break;
902: }
903:
1.108 schwarze 904: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 905:
1.100 schwarze 906: d = DELIM_NONE;
907: firstarg = 1;
1.98 schwarze 908: mayopen = 1;
1.45 schwarze 909: for (cnt = scope = 0;; ) {
1.1 kristaps 910: la = *pos;
1.76 schwarze 911: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 912:
1.100 schwarze 913: /*
914: * At the end of a macro line,
915: * opening delimiters do not suppress spacing.
916: */
917:
918: if (ac == ARGS_EOLN) {
919: if (d == DELIM_OPEN)
920: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 921: break;
1.100 schwarze 922: }
923:
924: /*
925: * The rest of the macro line is only punctuation,
926: * to be handled by append_delims().
927: * If there were no other arguments,
928: * do not allow the first one to suppress spacing,
929: * even if it turns out to be a closing one.
930: */
931:
932: if (ac == ARGS_PUNCT) {
933: if (cnt == 0 && nc == 0)
934: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 935: break;
1.100 schwarze 936: }
1.1 kristaps 937:
1.101 schwarze 938: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 939: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 940:
1.88 schwarze 941: /*
1.1 kristaps 942: * In this case, we've located a submacro and must
943: * execute it. Close out scope, if open. If no
944: * elements have been generated, either create one (nc)
945: * or raise a warning.
946: */
947:
1.106 schwarze 948: if (ntok != MDOC_MAX) {
1.105 schwarze 949: if (scope)
950: rew_elem(mdoc, tok);
1.106 schwarze 951: if (nc && ! cnt) {
952: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 953: rew_last(mdoc, mdoc->last);
1.106 schwarze 954: } else if ( ! nc && ! cnt) {
1.1 kristaps 955: mdoc_argv_free(arg);
1.92 schwarze 956: mandoc_msg(MANDOCERR_MACRO_EMPTY,
957: mdoc->parse, line, ppos,
958: mdoc_macronames[tok]);
1.1 kristaps 959: }
1.107 schwarze 960: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 961: if (nl)
962: append_delims(mdoc, line, pos, buf);
1.107 schwarze 963: return;
1.88 schwarze 964: }
1.1 kristaps 965:
1.88 schwarze 966: /*
1.1 kristaps 967: * Non-quote-enclosed punctuation. Set up our scope, if
968: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 969: * the word.
1.1 kristaps 970: */
971:
1.106 schwarze 972: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 973:
1.45 schwarze 974: if (DELIM_NONE != d) {
975: /*
976: * If we encounter closing punctuation, no word
1.100 schwarze 977: * has been emitted, no scope is open, and we're
1.45 schwarze 978: * allowed to have an empty element, then start
1.98 schwarze 979: * a new scope.
1.45 schwarze 980: */
1.98 schwarze 981: if ((d == DELIM_CLOSE ||
982: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 983: !cnt && !scope && nc && mayopen) {
1.106 schwarze 984: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 985: scope = 1;
1.98 schwarze 986: cnt++;
1.106 schwarze 987: if (tok == MDOC_Nm)
1.98 schwarze 988: mayopen = 0;
1.45 schwarze 989: }
990: /*
991: * Close out our scope, if one is open, before
992: * any punctuation.
993: */
1.105 schwarze 994: if (scope)
995: rew_elem(mdoc, tok);
1.45 schwarze 996: scope = 0;
1.101 schwarze 997: if (tok == MDOC_Fn)
998: mayopen = 0;
1.98 schwarze 999: } else if (mayopen && !scope) {
1.106 schwarze 1000: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 1001: scope = 1;
1.98 schwarze 1002: cnt++;
1.1 kristaps 1003: }
1.66 schwarze 1004:
1.106 schwarze 1005: dword(mdoc, line, la, p, d,
1006: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 1007:
1008: /*
1.100 schwarze 1009: * If the first argument is a closing delimiter,
1010: * do not suppress spacing before it.
1011: */
1012:
1013: if (firstarg && d == DELIM_CLOSE && !nc)
1014: mdoc->last->flags &= ~MDOC_DELIMC;
1015: firstarg = 0;
1016:
1017: /*
1.27 schwarze 1018: * `Fl' macros have their scope re-opened with each new
1019: * word so that the `-' can be added to each one without
1020: * having to parse out spaces.
1021: */
1.106 schwarze 1022: if (scope && tok == MDOC_Fl) {
1.105 schwarze 1023: rew_elem(mdoc, tok);
1.45 schwarze 1024: scope = 0;
1.27 schwarze 1025: }
1.1 kristaps 1026: }
1027:
1.105 schwarze 1028: if (scope)
1029: rew_elem(mdoc, tok);
1.1 kristaps 1030:
1031: /*
1032: * If no elements have been collected and we're allowed to have
1033: * empties (nc), open a scope and close it out. Otherwise,
1034: * raise a warning.
1035: */
1.32 schwarze 1036:
1.106 schwarze 1037: if ( ! cnt) {
1038: if (nc) {
1039: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1040: rew_last(mdoc, mdoc->last);
1041: } else {
1042: mdoc_argv_free(arg);
1043: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1044: line, ppos, mdoc_macronames[tok]);
1045: }
1.1 kristaps 1046: }
1.106 schwarze 1047: if (nl)
1048: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1049: }
1050:
1.107 schwarze 1051: static void
1.1 kristaps 1052: blk_full(MACRO_PROT_ARGS)
1053: {
1.109 schwarze 1054: int la, nl, parsed;
1.1 kristaps 1055: struct mdoc_arg *arg;
1.121 schwarze 1056: struct mdoc_node *blk; /* Our own block. */
1057: struct mdoc_node *head; /* Our own head. */
1058: struct mdoc_node *body; /* Our own body. */
1.32 schwarze 1059: struct mdoc_node *n;
1.37 schwarze 1060: enum margserr ac, lac;
1.1 kristaps 1061: char *p;
1062:
1.76 schwarze 1063: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 1064:
1065: /* Skip items outside lists. */
1066:
1067: if (tok == MDOC_It) {
1068: for (n = mdoc->last; n; n = n->parent)
1.114 schwarze 1069: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1070: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.95 schwarze 1071: break;
1072: if (n == NULL) {
1073: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1074: line, ppos, "It %s", buf + *pos);
1.106 schwarze 1075: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 1076: rew_elem(mdoc, MDOC_br);
1.107 schwarze 1077: return;
1.95 schwarze 1078: }
1079: }
1.43 schwarze 1080:
1.32 schwarze 1081: /* Close out prior implicit scope. */
1.12 schwarze 1082:
1.106 schwarze 1083: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1084: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1085: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1086: }
1087:
1.32 schwarze 1088: /*
1.68 schwarze 1089: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1090: * macro openings. Implicit ones first close out prior scope
1091: * (seen above). Delay opening the head until necessary to
1092: * allow leading punctuation to print. Special consideration
1093: * for `It -column', which has phrase-part syntax instead of
1094: * regular child nodes.
1095: */
1096:
1.108 schwarze 1097: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1098: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1099: head = body = NULL;
1.1 kristaps 1100:
1.32 schwarze 1101: /*
1.73 schwarze 1102: * Exception: Heads of `It' macros in `-diag' lists are not
1103: * parsed, even though `It' macros in general are parsed.
1104: */
1.107 schwarze 1105:
1.109 schwarze 1106: parsed = tok != MDOC_It ||
1107: mdoc->last->parent->tok != MDOC_Bl ||
1108: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1109:
1110: /*
1.32 schwarze 1111: * The `Nd' macro has all arguments in its body: it's a hybrid
1112: * of block partial-explicit and full-implicit. Stupid.
1113: */
1.12 schwarze 1114:
1.106 schwarze 1115: if (tok == MDOC_Nd) {
1116: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1117: rew_last(mdoc, head);
1.106 schwarze 1118: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1119: }
1120:
1.106 schwarze 1121: if (tok == MDOC_Bk)
1.80 schwarze 1122: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1123:
1.106 schwarze 1124: ac = ARGS_PEND;
1125: for (;;) {
1.32 schwarze 1126: la = *pos;
1.106 schwarze 1127: lac = ac;
1.76 schwarze 1128: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1129: if (ac == ARGS_PUNCT)
1.52 schwarze 1130: break;
1.106 schwarze 1131: if (ac == ARGS_EOLN) {
1132: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1133: break;
1134: /*
1135: * This is necessary: if the last token on a
1136: * line is a `Ta' or tab, then we'll get
1137: * ARGS_EOLN, so we must be smart enough to
1138: * reopen our scope if the last parse was a
1139: * phrase or partial phrase.
1140: */
1.123 ! schwarze 1141: if (body != NULL)
! 1142: rew_last(mdoc, body);
1.106 schwarze 1143: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1144: break;
1.41 schwarze 1145: }
1146:
1.88 schwarze 1147: /*
1.46 schwarze 1148: * Emit leading punctuation (i.e., punctuation before
1149: * the MDOC_HEAD) for non-phrase types.
1150: */
1.32 schwarze 1151:
1.106 schwarze 1152: if (head == NULL &&
1153: ac != ARGS_PEND &&
1154: ac != ARGS_PHRASE &&
1155: ac != ARGS_PPHRASE &&
1156: ac != ARGS_QWORD &&
1157: mdoc_isdelim(p) == DELIM_OPEN) {
1158: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1159: continue;
1160: }
1161:
1.46 schwarze 1162: /* Open a head if one hasn't been opened. */
1.32 schwarze 1163:
1.106 schwarze 1164: if (head == NULL)
1165: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1166:
1.106 schwarze 1167: if (ac == ARGS_PHRASE ||
1168: ac == ARGS_PEND ||
1169: ac == ARGS_PPHRASE) {
1.107 schwarze 1170:
1.46 schwarze 1171: /*
1172: * If we haven't opened a body yet, rewind the
1173: * head; if we have, rewind that instead.
1174: */
1175:
1.123 ! schwarze 1176: rew_last(mdoc, body == NULL ? head : body);
1.106 schwarze 1177: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1178:
1179: /*
1180: * Process phrases: set whether we're in a
1181: * partial-phrase (this effects line handling)
1182: * then call down into the phrase parser.
1183: */
1184:
1.106 schwarze 1185: if (ac == ARGS_PPHRASE)
1.76 schwarze 1186: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1187: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1188: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1189: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1190: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1191: continue;
1192: }
1193:
1.109 schwarze 1194: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1195: break;
1.32 schwarze 1196: }
1.1 kristaps 1197:
1.121 schwarze 1198: if (blk->flags & MDOC_VALID)
1199: return;
1.106 schwarze 1200: if (head == NULL)
1201: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1202: if (nl)
1203: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1204: if (body != NULL)
1.46 schwarze 1205: goto out;
1.29 schwarze 1206:
1207: /*
1.34 schwarze 1208: * If there is an open (i.e., unvalidated) sub-block requiring
1209: * explicit close-out, postpone switching the current block from
1.123 ! schwarze 1210: * head to body until the rew_pending() call closing out that
1.34 schwarze 1211: * sub-block.
1.29 schwarze 1212: */
1.76 schwarze 1213: for (n = mdoc->last; n && n != head; n = n->parent) {
1.107 schwarze 1214: if (n->type == MDOC_BLOCK &&
1215: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1216: ! (n->flags & MDOC_VALID)) {
1.29 schwarze 1217: n->pending = head;
1.107 schwarze 1218: return;
1.29 schwarze 1219: }
1220: }
1.54 schwarze 1221:
1.32 schwarze 1222: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1223:
1.123 ! schwarze 1224: rew_last(mdoc, head);
! 1225: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1226: out:
1.106 schwarze 1227: if (mdoc->flags & MDOC_FREECOL) {
1.123 ! schwarze 1228: rew_last(mdoc, body);
! 1229: rew_last(mdoc, blk);
1.106 schwarze 1230: mdoc->flags &= ~MDOC_FREECOL;
1231: }
1.1 kristaps 1232: }
1233:
1.107 schwarze 1234: static void
1.1 kristaps 1235: blk_part_imp(MACRO_PROT_ARGS)
1236: {
1.43 schwarze 1237: int la, nl;
1.36 schwarze 1238: enum margserr ac;
1.1 kristaps 1239: char *p;
1.32 schwarze 1240: struct mdoc_node *blk; /* saved block context */
1241: struct mdoc_node *body; /* saved body context */
1242: struct mdoc_node *n;
1.1 kristaps 1243:
1.76 schwarze 1244: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1245:
1.32 schwarze 1246: /*
1247: * A macro that spans to the end of the line. This is generally
1248: * (but not necessarily) called as the first macro. The block
1249: * has a head as the immediate child, which is always empty,
1250: * followed by zero or more opening punctuation nodes, then the
1251: * body (which may be empty, depending on the macro), then zero
1252: * or more closing punctuation nodes.
1253: */
1.22 schwarze 1254:
1.106 schwarze 1255: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.118 schwarze 1256: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1257:
1.32 schwarze 1258: /*
1259: * Open the body scope "on-demand", that is, after we've
1260: * processed all our the leading delimiters (open parenthesis,
1261: * etc.).
1262: */
1.1 kristaps 1263:
1.32 schwarze 1264: for (body = NULL; ; ) {
1.22 schwarze 1265: la = *pos;
1.76 schwarze 1266: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1267: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1268: break;
1269:
1.106 schwarze 1270: if (body == NULL && ac != ARGS_QWORD &&
1271: mdoc_isdelim(p) == DELIM_OPEN) {
1272: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1273: continue;
1.80 schwarze 1274: }
1.1 kristaps 1275:
1.106 schwarze 1276: if (body == NULL)
1277: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1278:
1.109 schwarze 1279: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1280: break;
1.32 schwarze 1281: }
1.106 schwarze 1282: if (body == NULL)
1283: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1284:
1.47 schwarze 1285: /*
1286: * If there is an open sub-block requiring explicit close-out,
1.123 ! schwarze 1287: * postpone closing out the current block until the
! 1288: * rew_pending() call closing out the sub-block.
1.47 schwarze 1289: */
1.107 schwarze 1290:
1.76 schwarze 1291: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1292: n = n->parent) {
1.106 schwarze 1293: if (n->type == MDOC_BLOCK &&
1294: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1295: ! (n->flags & MDOC_VALID)) {
1.76 schwarze 1296: make_pending(n, tok, mdoc, line, ppos);
1.106 schwarze 1297: mdoc_endbody_alloc(mdoc, line, ppos,
1298: tok, body, ENDBODY_NOSPACE);
1.107 schwarze 1299: return;
1.47 schwarze 1300: }
1301: }
1.91 schwarze 1302: assert(n == body);
1.120 schwarze 1303: rew_last(mdoc, body);
1.106 schwarze 1304: if (nl)
1305: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1306: rew_pending(mdoc, blk);
1.74 schwarze 1307:
1308: /* Move trailing .Ns out of scope. */
1309:
1310: for (n = body->child; n && n->next; n = n->next)
1311: /* Do nothing. */ ;
1.106 schwarze 1312: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1313: mdoc_node_relink(mdoc, n);
1.1 kristaps 1314: }
1315:
1.107 schwarze 1316: static void
1.1 kristaps 1317: blk_part_exp(MACRO_PROT_ARGS)
1318: {
1.37 schwarze 1319: int la, nl;
1.36 schwarze 1320: enum margserr ac;
1.32 schwarze 1321: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1322: char *p;
1323:
1.76 schwarze 1324: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1325:
1.32 schwarze 1326: /*
1327: * The opening of an explicit macro having zero or more leading
1328: * punctuation nodes; a head with optional single element (the
1329: * case of `Eo'); and a body that may be empty.
1330: */
1.22 schwarze 1331:
1.106 schwarze 1332: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1333: head = NULL;
1334: for (;;) {
1.22 schwarze 1335: la = *pos;
1.76 schwarze 1336: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1337: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1338: break;
1339:
1.32 schwarze 1340: /* Flush out leading punctuation. */
1341:
1.106 schwarze 1342: if (head == NULL && ac != ARGS_QWORD &&
1343: mdoc_isdelim(p) == DELIM_OPEN) {
1344: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1345: continue;
1.80 schwarze 1346: }
1.32 schwarze 1347:
1.106 schwarze 1348: if (head == NULL) {
1349: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1350: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1351: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1352: rew_last(mdoc, head);
1353: mdoc_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1354: if (tok == MDOC_Eo)
1.32 schwarze 1355: continue;
1356: }
1357:
1.109 schwarze 1358: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1359: break;
1.1 kristaps 1360: }
1361:
1.32 schwarze 1362: /* Clean-up to leave in a consistent state. */
1363:
1.119 schwarze 1364: if (head == NULL) {
1365: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.106 schwarze 1366: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1367: }
1.106 schwarze 1368: if (nl)
1369: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1370: }
1371:
1.107 schwarze 1372: static void
1.1 kristaps 1373: in_line_argn(MACRO_PROT_ARGS)
1374: {
1.37 schwarze 1375: int la, flushed, j, maxargs, nl;
1.36 schwarze 1376: enum margserr ac;
1377: struct mdoc_arg *arg;
1378: char *p;
1379: enum mdoct ntok;
1.1 kristaps 1380:
1.112 schwarze 1381: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1382:
1.32 schwarze 1383: /*
1384: * A line macro that has a fixed number of arguments (maxargs).
1385: * Only open the scope once the first non-leading-punctuation is
1386: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1387: * keep it open until the maximum number of arguments are
1388: * exhausted.
1389: */
1.1 kristaps 1390:
1391: switch (tok) {
1.88 schwarze 1392: case MDOC_Ap:
1.1 kristaps 1393: /* FALLTHROUGH */
1.88 schwarze 1394: case MDOC_Ns:
1.1 kristaps 1395: /* FALLTHROUGH */
1.88 schwarze 1396: case MDOC_Ux:
1.1 kristaps 1397: maxargs = 0;
1398: break;
1.88 schwarze 1399: case MDOC_Bx:
1.64 schwarze 1400: /* FALLTHROUGH */
1.89 schwarze 1401: case MDOC_Es:
1402: /* FALLTHROUGH */
1.88 schwarze 1403: case MDOC_Xr:
1.28 schwarze 1404: maxargs = 2;
1405: break;
1.1 kristaps 1406: default:
1407: maxargs = 1;
1408: break;
1409: }
1410:
1.108 schwarze 1411: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1412:
1.112 schwarze 1413: p = NULL;
1414: flushed = j = 0;
1415: for (;;) {
1.22 schwarze 1416: la = *pos;
1.76 schwarze 1417: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.112 schwarze 1418: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1419: if (j < 2 && tok == MDOC_Pf)
1420: mandoc_vmsg(MANDOCERR_PF_SKIP,
1421: mdoc->parse, line, ppos, "Pf %s",
1422: p == NULL ? "at eol" : p);
1.1 kristaps 1423: break;
1.112 schwarze 1424: }
1.1 kristaps 1425:
1.106 schwarze 1426: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1427: ac != ARGS_QWORD && j == 0 &&
1428: mdoc_isdelim(p) == DELIM_OPEN) {
1429: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1430: continue;
1.106 schwarze 1431: } else if (j == 0)
1432: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.32 schwarze 1433:
1434: if (j == maxargs && ! flushed) {
1.105 schwarze 1435: rew_elem(mdoc, tok);
1.32 schwarze 1436: flushed = 1;
1437: }
1438:
1.112 schwarze 1439: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1440: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1441:
1.106 schwarze 1442: if (ntok != MDOC_MAX) {
1.105 schwarze 1443: if ( ! flushed)
1444: rew_elem(mdoc, tok);
1.1 kristaps 1445: flushed = 1;
1.107 schwarze 1446: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.32 schwarze 1447: j++;
1.1 kristaps 1448: break;
1449: }
1450:
1.106 schwarze 1451: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1452: ac != ARGS_QWORD && ! flushed &&
1453: mdoc_isdelim(p) != DELIM_NONE) {
1.105 schwarze 1454: rew_elem(mdoc, tok);
1.1 kristaps 1455: flushed = 1;
1.28 schwarze 1456: }
1457:
1.106 schwarze 1458: dword(mdoc, line, la, p, DELIM_MAX,
1459: MDOC_JOIN & mdoc_macros[tok].flags);
1.32 schwarze 1460: j++;
1.1 kristaps 1461: }
1462:
1.112 schwarze 1463: if (j == 0) {
1.106 schwarze 1464: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.112 schwarze 1465: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1466: append_delims(mdoc, line, pos, buf);
1467: }
1.105 schwarze 1468: if ( ! flushed)
1469: rew_elem(mdoc, tok);
1.106 schwarze 1470: if (nl)
1471: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1472: }
1473:
1.107 schwarze 1474: static void
1.1 kristaps 1475: in_line_eoln(MACRO_PROT_ARGS)
1476: {
1.36 schwarze 1477: struct mdoc_arg *arg;
1.1 kristaps 1478:
1.53 schwarze 1479: if (tok == MDOC_Pp)
1.76 schwarze 1480: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.53 schwarze 1481:
1.108 schwarze 1482: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1483: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1484: if (parse_rest(mdoc, tok, line, pos, buf))
1485: return;
1486: rew_elem(mdoc, tok);
1487: }
1488:
1489: /*
1490: * The simplest argument parser available: Parse the remaining
1491: * words until the end of the phrase or line and return 0
1492: * or until the next macro, call that macro, and return 1.
1493: */
1494: static int
1495: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1496: {
1497: int la;
1.1 kristaps 1498:
1499: for (;;) {
1500: la = *pos;
1.109 schwarze 1501: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1502: return(0);
1.109 schwarze 1503: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1504: return(1);
1.1 kristaps 1505: }
1.28 schwarze 1506: }
1507:
1.107 schwarze 1508: static void
1.28 schwarze 1509: ctx_synopsis(MACRO_PROT_ARGS)
1510: {
1.37 schwarze 1511:
1.107 schwarze 1512: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1513: in_line(mdoc, tok, line, ppos, pos, buf);
1514: else if (tok == MDOC_Nm)
1515: blk_full(mdoc, tok, line, ppos, pos, buf);
1516: else {
1517: assert(tok == MDOC_Vt);
1518: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1519: }
1.1 kristaps 1520: }
1521:
1.17 schwarze 1522: /*
1523: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1524: * They're unusual because they're basically free-form text until a
1525: * macro is encountered.
1526: */
1.107 schwarze 1527: static void
1.46 schwarze 1528: phrase_ta(MACRO_PROT_ARGS)
1529: {
1.123 ! schwarze 1530: struct mdoc_node *body, *n;
1.46 schwarze 1531:
1.78 schwarze 1532: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1533:
1.123 ! schwarze 1534: body = NULL;
! 1535: for (n = mdoc->last; n != NULL; n = n->parent) {
! 1536: if (n->flags & (MDOC_VALID | MDOC_BREAK))
! 1537: continue;
! 1538: if (n->tok == MDOC_It && n->type == MDOC_BODY)
! 1539: body = n;
! 1540: if (n->tok == MDOC_Bl)
! 1541: break;
! 1542: }
! 1543:
1.107 schwarze 1544: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1545: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1546: line, ppos, "Ta");
1.107 schwarze 1547: return;
1.78 schwarze 1548: }
1.46 schwarze 1549:
1.78 schwarze 1550: /* Advance to the next column. */
1.106 schwarze 1551:
1.123 ! schwarze 1552: rew_last(mdoc, body);
1.106 schwarze 1553: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1554: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1555: }
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