Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.120
1.120 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.119 2015/02/01 17:30:34 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 *);
1.106 schwarze 66: static void rew_sub(enum mdoc_type, struct mdoc *,
1.36 schwarze 67: enum mdoct, int, int);
1.1 kristaps 68:
69: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 70: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 71: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
72: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
73: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 74: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
75: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
76: { in_line_eoln, 0 }, /* Pp */
77: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
78: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 79: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 80: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 81: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 82: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
83: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 92: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
94: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 98: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 100: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
101: { blk_full, MDOC_JOIN }, /* Nd */
102: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 103: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 104: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 105: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
106: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 107: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 108: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 109: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 110: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 111: { in_line_eoln, MDOC_JOIN }, /* %A */
112: { in_line_eoln, MDOC_JOIN }, /* %B */
113: { in_line_eoln, MDOC_JOIN }, /* %D */
114: { in_line_eoln, MDOC_JOIN }, /* %I */
115: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 116: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 117: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 118: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 119: { in_line_eoln, MDOC_JOIN }, /* %R */
120: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 121: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 122: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
123: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
124: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
125: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
126: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 127: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 128: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
130: { blk_full, MDOC_EXPLICIT }, /* Bf */
131: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
132: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
133: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 134: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
136: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 137: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
138: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
139: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
140: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
141: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
142: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
143: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
144: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 145: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 147: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 148: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 149: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
150: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 151: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
152: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 153: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
154: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 155: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 156: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
158: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
159: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
160: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
161: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
162: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
163: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
164: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 166: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 167: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
168: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
169: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
171: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 172: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 173: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
174: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 175: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 176: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 177: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
178: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 179: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
180: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
181: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
182: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
183: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
184: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
185: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 186: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 187: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 188: { in_line_eoln, 0 }, /* Bt */
189: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 190: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 191: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 192: { in_line, 0 }, /* Lb */
1.80 schwarze 193: { in_line_eoln, 0 }, /* Lp */
194: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
195: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
196: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
197: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
198: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
199: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
200: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
201: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 202: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
203: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 204: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 205: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 206: { in_line_eoln, 0 }, /* br */
207: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 208: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 209: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 210: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 211: };
212:
213: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
214:
215:
216: /*
217: * This is called at the end of parsing. It must traverse up the tree,
218: * closing out open [implicit] scopes. Obviously, open explicit scopes
219: * are errors.
220: */
1.107 schwarze 221: void
1.76 schwarze 222: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 223: {
224: struct mdoc_node *n;
225:
226: /* Scan for open explicit scopes. */
227:
1.107 schwarze 228: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 229: mdoc->last->parent : mdoc->last;
1.1 kristaps 230:
1.56 schwarze 231: for ( ; n; n = n->parent)
1.107 schwarze 232: if (n->type == MDOC_BLOCK &&
233: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 234: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
235: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 236:
1.22 schwarze 237: /* Rewind to the first. */
238:
1.105 schwarze 239: rew_last(mdoc, mdoc->first);
1.1 kristaps 240: }
241:
1.22 schwarze 242: /*
1.109 schwarze 243: * Look up the macro at *p called by "from",
244: * or as a line macro if from == MDOC_MAX.
1.22 schwarze 245: */
1.36 schwarze 246: static enum mdoct
1.111 schwarze 247: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.21 schwarze 248: {
1.36 schwarze 249: enum mdoct res;
1.1 kristaps 250:
1.109 schwarze 251: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
252: res = mdoc_hash_find(p);
1.111 schwarze 253: if (res != MDOC_MAX) {
254: if (mdoc_macros[res].flags & MDOC_CALLABLE)
255: return(res);
256: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
257: mandoc_msg(MANDOCERR_MACRO_CALL,
258: mdoc->parse, line, ppos, p);
259: }
1.109 schwarze 260: }
1.1 kristaps 261: return(MDOC_MAX);
262: }
263:
1.105 schwarze 264: static void
1.22 schwarze 265: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 266: {
1.63 schwarze 267: struct mdoc_node *n, *np;
1.1 kristaps 268:
269: assert(to);
270: mdoc->next = MDOC_NEXT_SIBLING;
271: while (mdoc->last != to) {
1.63 schwarze 272: /*
273: * Save the parent here, because we may delete the
1.76 schwarze 274: * mdoc->last node in the post-validation phase and reset
275: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 276: * out to be lost.
277: */
278: np = mdoc->last->parent;
1.105 schwarze 279: mdoc_valid_post(mdoc);
1.61 schwarze 280: n = mdoc->last;
1.63 schwarze 281: mdoc->last = np;
1.1 kristaps 282: assert(mdoc->last);
1.61 schwarze 283: mdoc->last->last = n;
1.1 kristaps 284: }
1.105 schwarze 285: mdoc_valid_post(mdoc);
1.1 kristaps 286: }
287:
1.22 schwarze 288: /*
1.48 schwarze 289: * For a block closing macro, return the corresponding opening one.
290: * Otherwise, return the macro itself.
1.22 schwarze 291: */
1.34 schwarze 292: static enum mdoct
293: rew_alt(enum mdoct tok)
1.1 kristaps 294: {
295: switch (tok) {
1.88 schwarze 296: case MDOC_Ac:
1.1 kristaps 297: return(MDOC_Ao);
1.88 schwarze 298: case MDOC_Bc:
1.1 kristaps 299: return(MDOC_Bo);
1.88 schwarze 300: case MDOC_Brc:
1.1 kristaps 301: return(MDOC_Bro);
1.88 schwarze 302: case MDOC_Dc:
1.1 kristaps 303: return(MDOC_Do);
1.88 schwarze 304: case MDOC_Ec:
1.1 kristaps 305: return(MDOC_Eo);
1.88 schwarze 306: case MDOC_Ed:
1.1 kristaps 307: return(MDOC_Bd);
1.88 schwarze 308: case MDOC_Ef:
1.1 kristaps 309: return(MDOC_Bf);
1.88 schwarze 310: case MDOC_Ek:
1.1 kristaps 311: return(MDOC_Bk);
1.88 schwarze 312: case MDOC_El:
1.1 kristaps 313: return(MDOC_Bl);
1.88 schwarze 314: case MDOC_Fc:
1.1 kristaps 315: return(MDOC_Fo);
1.88 schwarze 316: case MDOC_Oc:
1.1 kristaps 317: return(MDOC_Oo);
1.88 schwarze 318: case MDOC_Pc:
1.1 kristaps 319: return(MDOC_Po);
1.88 schwarze 320: case MDOC_Qc:
1.1 kristaps 321: return(MDOC_Qo);
1.88 schwarze 322: case MDOC_Re:
1.1 kristaps 323: return(MDOC_Rs);
1.88 schwarze 324: case MDOC_Sc:
1.1 kristaps 325: return(MDOC_So);
1.88 schwarze 326: case MDOC_Xc:
1.1 kristaps 327: return(MDOC_Xo);
328: default:
1.48 schwarze 329: return(tok);
1.1 kristaps 330: }
331: /* NOTREACHED */
332: }
333:
1.48 schwarze 334: /*
335: * Rewinding to tok, how do we have to handle *p?
336: * REWIND_NONE: *p would delimit tok, but no tok scope is open
337: * inside *p, so there is no need to rewind anything at all.
338: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
339: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 schwarze 340: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 341: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
342: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 343: */
1.35 schwarze 344: static enum rew
1.88 schwarze 345: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.34 schwarze 346: const struct mdoc_node *p)
1.1 kristaps 347: {
348:
1.50 schwarze 349: /*
350: * No matching token, no delimiting block, no broken block.
351: * This can happen when full implicit macros are called for
352: * the first time but try to rewind their previous
353: * instance anyway.
354: */
1.1 kristaps 355: if (MDOC_ROOT == p->type)
1.48 schwarze 356: return(MDOC_BLOCK == type &&
357: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
358: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 359:
360: /*
1.88 schwarze 361: * When starting to rewind, skip plain text
1.50 schwarze 362: * and nodes that have already been rewound.
363: */
1.117 schwarze 364: if (p->type == MDOC_TEXT || p->flags & (MDOC_VALID | MDOC_BREAK))
1.48 schwarze 365: return(REWIND_MORE);
366:
1.50 schwarze 367: /*
368: * The easiest case: Found a matching token.
369: * This applies to both blocks and elements.
370: */
1.48 schwarze 371: tok = rew_alt(tok);
372: if (tok == p->tok)
373: return(p->end ? REWIND_NONE :
374: type == p->type ? REWIND_THIS : REWIND_MORE);
375:
1.50 schwarze 376: /*
377: * While elements do require rewinding for themselves,
378: * they never affect rewinding of other nodes.
379: */
1.48 schwarze 380: if (MDOC_ELEM == p->type)
381: return(REWIND_MORE);
1.1 kristaps 382:
1.50 schwarze 383: /*
384: * Blocks delimited by our target token get REWIND_MORE.
1.88 schwarze 385: * Blocks delimiting our target token get REWIND_NONE.
1.50 schwarze 386: */
1.1 kristaps 387: switch (tok) {
1.88 schwarze 388: case MDOC_Bl:
1.48 schwarze 389: if (MDOC_It == p->tok)
390: return(REWIND_MORE);
1.1 kristaps 391: break;
1.88 schwarze 392: case MDOC_It:
1.1 kristaps 393: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 394: return(REWIND_NONE);
1.1 kristaps 395: break;
1.48 schwarze 396: /*
397: * XXX Badly nested block handling still fails badly
398: * when one block is breaking two blocks of the same type.
399: * This is an incomplete and extremely ugly workaround,
400: * required to let the OpenBSD tree build.
401: */
1.88 schwarze 402: case MDOC_Oo:
1.48 schwarze 403: if (MDOC_Op == p->tok)
404: return(REWIND_MORE);
1.1 kristaps 405: break;
1.88 schwarze 406: case MDOC_Nm:
1.51 schwarze 407: return(REWIND_NONE);
1.88 schwarze 408: case MDOC_Nd:
1.12 schwarze 409: /* FALLTHROUGH */
1.88 schwarze 410: case MDOC_Ss:
1.1 kristaps 411: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 412: return(REWIND_NONE);
1.1 kristaps 413: /* FALLTHROUGH */
1.88 schwarze 414: case MDOC_Sh:
1.95 schwarze 415: if (MDOC_ROOT == p->parent->type)
416: return(REWIND_THIS);
1.48 schwarze 417: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
418: MDOC_Sh == p->tok)
419: return(REWIND_MORE);
1.1 kristaps 420: break;
421: default:
422: break;
423: }
424:
1.50 schwarze 425: /*
426: * Default block rewinding rules.
1.51 schwarze 427: * In particular, always skip block end markers,
428: * and let all blocks rewind Nm children.
1.102 schwarze 429: * Do not warn again when closing a block,
430: * since closing the body already warned.
1.50 schwarze 431: */
1.54 schwarze 432: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.102 schwarze 433: MDOC_BLOCK == type || (MDOC_BLOCK == p->type &&
1.50 schwarze 434: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
435: return(REWIND_MORE);
436:
437: /*
1.59 schwarze 438: * By default, closing out full blocks
439: * forces closing of broken explicit blocks,
440: * while closing out partial blocks
441: * allows delayed rewinding by default.
1.50 schwarze 442: */
1.59 schwarze 443: return (&blk_full == mdoc_macros[tok].fp ?
444: REWIND_FORCE : REWIND_LATER);
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
464: * until the rew_sub call closing *broken.
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;
1.94 schwarze 534: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.88 schwarze 535: "%s breaks %s", mdoc_macronames[tok],
536: mdoc_macronames[broken->tok]);
1.47 schwarze 537: return(1);
538: }
539:
540: /*
541: * Found no matching block for tok.
542: * Are you trying to close a block that is not open?
543: */
544: return(0);
545: }
546:
1.106 schwarze 547: static void
1.88 schwarze 548: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.34 schwarze 549: enum mdoct tok, int line, int ppos)
1.1 kristaps 550: {
1.116 schwarze 551: struct mdoc_node *n, *to;
1.1 kristaps 552:
1.116 schwarze 553: to = NULL;
1.76 schwarze 554: n = mdoc->last;
1.48 schwarze 555: while (n) {
556: switch (rew_dohalt(tok, t, n)) {
1.88 schwarze 557: case REWIND_NONE:
1.116 schwarze 558: if (to == NULL)
559: return;
560: n = to;
561: break;
1.88 schwarze 562: case REWIND_THIS:
1.81 schwarze 563: n->lastline = line -
1.106 schwarze 564: (mdoc->flags & MDOC_NEWLINE &&
565: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.48 schwarze 566: break;
1.88 schwarze 567: case REWIND_FORCE:
1.94 schwarze 568: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.88 schwarze 569: line, ppos, "%s breaks %s",
570: mdoc_macronames[tok],
571: mdoc_macronames[n->tok]);
1.59 schwarze 572: /* FALLTHROUGH */
1.88 schwarze 573: case REWIND_MORE:
1.81 schwarze 574: n->lastline = line -
1.106 schwarze 575: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.116 schwarze 576: to = n;
1.48 schwarze 577: n = n->parent;
578: continue;
1.88 schwarze 579: case REWIND_LATER:
1.76 schwarze 580: if (make_pending(n, tok, mdoc, line, ppos) ||
1.106 schwarze 581: t != MDOC_BLOCK)
582: return;
1.59 schwarze 583: /* FALLTHROUGH */
1.88 schwarze 584: case REWIND_ERROR:
1.94 schwarze 585: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
586: mdoc->parse, line, ppos,
587: mdoc_macronames[tok]);
1.106 schwarze 588: return;
1.22 schwarze 589: }
1.48 schwarze 590: break;
1.1 kristaps 591: }
592: assert(n);
1.105 schwarze 593: rew_last(mdoc, n);
1.29 schwarze 594:
595: /*
1.47 schwarze 596: * The current block extends an enclosing block.
597: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 598: */
1.106 schwarze 599: while ((n = n->pending) != NULL) {
1.105 schwarze 600: rew_last(mdoc, n);
1.106 schwarze 601: if (n->type == MDOC_HEAD)
602: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
1.29 schwarze 603: }
1.1 kristaps 604: }
605:
1.66 schwarze 606: /*
607: * Allocate a word and check whether it's punctuation or not.
608: * Punctuation consists of those tokens found in mdoc_isdelim().
609: */
1.106 schwarze 610: static void
1.80 schwarze 611: dword(struct mdoc *mdoc, int line, int col, const char *p,
612: enum mdelim d, int may_append)
1.66 schwarze 613: {
1.88 schwarze 614:
1.106 schwarze 615: if (d == DELIM_MAX)
1.66 schwarze 616: d = mdoc_isdelim(p);
617:
1.80 schwarze 618: if (may_append &&
1.106 schwarze 619: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
620: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
621: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 622: mdoc_word_append(mdoc, p);
1.106 schwarze 623: return;
1.80 schwarze 624: }
625:
1.106 schwarze 626: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 627:
1.71 schwarze 628: /*
1.100 schwarze 629: * If the word consists of a bare delimiter,
630: * flag the new node accordingly,
631: * unless doing so was vetoed by the invoking macro.
632: * Always clear the veto, it is only valid for one word.
1.71 schwarze 633: */
634:
1.100 schwarze 635: if (d == DELIM_OPEN)
636: mdoc->last->flags |= MDOC_DELIMO;
637: else if (d == DELIM_CLOSE &&
638: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 639: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 640: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 641: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 642: }
1.1 kristaps 643:
1.106 schwarze 644: static void
1.76 schwarze 645: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 646: {
1.109 schwarze 647: char *p;
1.42 schwarze 648: int la;
1.1 kristaps 649:
1.106 schwarze 650: if (buf[*pos] == '\0')
651: return;
1.1 kristaps 652:
653: for (;;) {
1.42 schwarze 654: la = *pos;
1.109 schwarze 655: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 656: break;
1.80 schwarze 657: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 658:
1.42 schwarze 659: /*
660: * If we encounter end-of-sentence symbols, then trigger
661: * the double-space.
662: *
1.68 schwarze 663: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 664: * the last symbol, such that `. )' will cause the
665: * correct double-spacing. However, (1) groff isn't
666: * smart enough to do this and (2) it would require
667: * knowing which symbols break this behaviour, for
1.68 schwarze 668: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 669: */
1.106 schwarze 670:
1.84 schwarze 671: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 672: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 673: }
674: }
675:
676: /*
1.109 schwarze 677: * Parse one word.
678: * If it is a macro, call it and return 1.
679: * Otherwise, allocate it and return 0.
680: */
681: static int
682: macro_or_word(MACRO_PROT_ARGS, int parsed)
683: {
684: char *p;
685: enum mdoct ntok;
686:
687: p = buf + ppos;
688: ntok = MDOC_MAX;
1.113 schwarze 689: if (*p == '"')
1.109 schwarze 690: p++;
1.113 schwarze 691: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 692: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 693:
694: if (ntok == MDOC_MAX) {
695: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
696: mdoc_macros[tok].flags & MDOC_JOIN);
697: return(0);
698: } else {
699: if (mdoc_macros[tok].fp == in_line_eoln)
700: rew_elem(mdoc, tok);
701: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
702: if (tok == MDOC_MAX)
703: append_delims(mdoc, line, pos, buf);
704: return(1);
705: }
706: }
707:
708: /*
1.88 schwarze 709: * Close out block partial/full explicit.
1.1 kristaps 710: */
1.107 schwarze 711: static void
1.1 kristaps 712: blk_exp_close(MACRO_PROT_ARGS)
713: {
1.47 schwarze 714: struct mdoc_node *body; /* Our own body. */
1.104 schwarze 715: struct mdoc_node *endbody; /* Our own end marker. */
1.47 schwarze 716: struct mdoc_node *later; /* A sub-block starting later. */
717: struct mdoc_node *n; /* For searching backwards. */
718:
1.116 schwarze 719: int flushed, have_it, j, lastarg, maxargs, nl;
1.36 schwarze 720: enum margserr ac;
1.47 schwarze 721: enum mdoct atok, ntok;
1.1 kristaps 722: char *p;
723:
1.76 schwarze 724: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 725:
1.1 kristaps 726: switch (tok) {
1.88 schwarze 727: case MDOC_Ec:
1.1 kristaps 728: maxargs = 1;
729: break;
1.88 schwarze 730: case MDOC_Ek:
1.82 schwarze 731: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 732: /* FALLTHROUGH */
1.1 kristaps 733: default:
734: maxargs = 0;
735: break;
736: }
737:
1.47 schwarze 738: /*
739: * Search backwards for beginnings of blocks,
740: * both of our own and of pending sub-blocks.
741: */
1.107 schwarze 742:
1.116 schwarze 743: have_it = 0;
1.47 schwarze 744: atok = rew_alt(tok);
1.104 schwarze 745: body = endbody = later = NULL;
1.76 schwarze 746: for (n = mdoc->last; n; n = n->parent) {
1.117 schwarze 747: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.47 schwarze 748: continue;
749:
750: /* Remember the start of our own body. */
1.107 schwarze 751:
1.106 schwarze 752: if (n->type == MDOC_BODY && atok == n->tok) {
753: if (n->end == ENDBODY_NOT)
1.47 schwarze 754: body = n;
755: continue;
756: }
757:
1.106 schwarze 758: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 759: continue;
1.116 schwarze 760:
761: if (n->tok == MDOC_It) {
762: have_it = 1;
763: continue;
764: }
765:
1.47 schwarze 766: if (atok == n->tok) {
767: assert(body);
768:
769: /*
770: * Found the start of our own block.
771: * When there is no pending sub block,
772: * just proceed to closing out.
773: */
1.107 schwarze 774:
1.116 schwarze 775: if (later == NULL ||
776: (tok == MDOC_El && !have_it))
1.47 schwarze 777: break;
778:
1.88 schwarze 779: /*
1.47 schwarze 780: * When there is a pending sub block,
781: * postpone closing out the current block
782: * until the rew_sub() closing out the sub-block.
783: */
1.107 schwarze 784:
1.76 schwarze 785: make_pending(later, tok, mdoc, line, ppos);
1.47 schwarze 786:
787: /*
788: * Mark the place where the formatting - but not
789: * the scope - of the current block ends.
790: */
1.107 schwarze 791:
1.106 schwarze 792: mdoc_endbody_alloc(mdoc, line, ppos,
793: atok, body, ENDBODY_SPACE);
1.107 schwarze 794:
795: /*
796: * If a block closing macro taking arguments
797: * breaks another block, put the arguments
798: * into the end marker and remeber the
799: * end marker in order to close it out.
800: */
801:
1.104 schwarze 802: if (maxargs) {
803: endbody = mdoc->last;
804: mdoc->next = MDOC_NEXT_CHILD;
805: }
1.47 schwarze 806: break;
807: }
808:
809: /*
810: * When finding an open sub block, remember the last
811: * open explicit block, or, in case there are only
812: * implicit ones, the first open implicit block.
813: */
1.107 schwarze 814:
1.116 schwarze 815: if (later == NULL ||
816: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.47 schwarze 817: later = n;
818: }
1.107 schwarze 819: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1.47 schwarze 820:
1.106 schwarze 821: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
822: if (buf[*pos] != '\0')
1.93 schwarze 823: mandoc_vmsg(MANDOCERR_ARG_SKIP,
824: mdoc->parse, line, ppos,
825: "%s %s", mdoc_macronames[tok],
826: buf + *pos);
1.106 schwarze 827: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.107 schwarze 828: return;
1.1 kristaps 829: }
830:
1.104 schwarze 831: if (maxargs && endbody == NULL) {
832: if (n == NULL) {
833: /*
834: * Stray .Ec without previous .Eo:
835: * Break the output line, ignore any arguments.
836: */
1.106 schwarze 837: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 838: rew_elem(mdoc, MDOC_br);
1.106 schwarze 839: } else
840: mdoc_tail_alloc(mdoc, line, ppos, atok);
1.104 schwarze 841: }
1.1 kristaps 842:
1.104 schwarze 843: flushed = n == NULL;
844: for (j = 0; ; j++) {
1.1 kristaps 845: lastarg = *pos;
846:
847: if (j == maxargs && ! flushed) {
1.106 schwarze 848: if (endbody == NULL)
849: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
850: else
1.105 schwarze 851: rew_last(mdoc, endbody);
1.1 kristaps 852: flushed = 1;
853: }
854:
1.76 schwarze 855: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 856: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 857: break;
858:
1.111 schwarze 859: ntok = ac == ARGS_QWORD ? MDOC_MAX :
860: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 861:
1.106 schwarze 862: if (ntok == MDOC_MAX) {
863: dword(mdoc, line, lastarg, p, DELIM_MAX,
864: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 865: continue;
866: }
1.1 kristaps 867:
1.36 schwarze 868: if ( ! flushed) {
1.106 schwarze 869: if (endbody == NULL)
870: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
871: else
1.105 schwarze 872: rew_last(mdoc, endbody);
1.36 schwarze 873: flushed = 1;
874: }
1.79 schwarze 875: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 876: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 877: break;
1.1 kristaps 878: }
879:
1.105 schwarze 880: if ( ! flushed) {
1.106 schwarze 881: if (endbody == NULL)
882: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
883: else
1.105 schwarze 884: rew_last(mdoc, endbody);
885: }
1.106 schwarze 886: if (nl)
887: append_delims(mdoc, line, pos, buf);
1.1 kristaps 888: }
889:
1.107 schwarze 890: static void
1.1 kristaps 891: in_line(MACRO_PROT_ARGS)
892: {
1.100 schwarze 893: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.36 schwarze 894: enum mdoct ntok;
895: enum margserr ac;
1.40 schwarze 896: enum mdelim d;
1.36 schwarze 897: struct mdoc_arg *arg;
898: char *p;
1.1 kristaps 899:
1.76 schwarze 900: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 901:
1.1 kristaps 902: /*
903: * Whether we allow ignored elements (those without content,
904: * usually because of reserved words) to squeak by.
905: */
1.32 schwarze 906:
1.1 kristaps 907: switch (tok) {
1.88 schwarze 908: case MDOC_An:
1.19 schwarze 909: /* FALLTHROUGH */
1.88 schwarze 910: case MDOC_Ar:
1.1 kristaps 911: /* FALLTHROUGH */
1.88 schwarze 912: case MDOC_Fl:
1.1 kristaps 913: /* FALLTHROUGH */
1.88 schwarze 914: case MDOC_Mt:
1.18 schwarze 915: /* FALLTHROUGH */
1.88 schwarze 916: case MDOC_Nm:
1.19 schwarze 917: /* FALLTHROUGH */
1.88 schwarze 918: case MDOC_Pa:
1.1 kristaps 919: nc = 1;
920: break;
921: default:
922: nc = 0;
923: break;
924: }
925:
1.108 schwarze 926: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 927:
1.100 schwarze 928: d = DELIM_NONE;
929: firstarg = 1;
1.98 schwarze 930: mayopen = 1;
1.45 schwarze 931: for (cnt = scope = 0;; ) {
1.1 kristaps 932: la = *pos;
1.76 schwarze 933: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 934:
1.100 schwarze 935: /*
936: * At the end of a macro line,
937: * opening delimiters do not suppress spacing.
938: */
939:
940: if (ac == ARGS_EOLN) {
941: if (d == DELIM_OPEN)
942: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 943: break;
1.100 schwarze 944: }
945:
946: /*
947: * The rest of the macro line is only punctuation,
948: * to be handled by append_delims().
949: * If there were no other arguments,
950: * do not allow the first one to suppress spacing,
951: * even if it turns out to be a closing one.
952: */
953:
954: if (ac == ARGS_PUNCT) {
955: if (cnt == 0 && nc == 0)
956: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 957: break;
1.100 schwarze 958: }
1.1 kristaps 959:
1.101 schwarze 960: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 961: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 962:
1.88 schwarze 963: /*
1.1 kristaps 964: * In this case, we've located a submacro and must
965: * execute it. Close out scope, if open. If no
966: * elements have been generated, either create one (nc)
967: * or raise a warning.
968: */
969:
1.106 schwarze 970: if (ntok != MDOC_MAX) {
1.105 schwarze 971: if (scope)
972: rew_elem(mdoc, tok);
1.106 schwarze 973: if (nc && ! cnt) {
974: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 975: rew_last(mdoc, mdoc->last);
1.106 schwarze 976: } else if ( ! nc && ! cnt) {
1.1 kristaps 977: mdoc_argv_free(arg);
1.92 schwarze 978: mandoc_msg(MANDOCERR_MACRO_EMPTY,
979: mdoc->parse, line, ppos,
980: mdoc_macronames[tok]);
1.1 kristaps 981: }
1.107 schwarze 982: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 983: if (nl)
984: append_delims(mdoc, line, pos, buf);
1.107 schwarze 985: return;
1.88 schwarze 986: }
1.1 kristaps 987:
1.88 schwarze 988: /*
1.1 kristaps 989: * Non-quote-enclosed punctuation. Set up our scope, if
990: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 991: * the word.
1.1 kristaps 992: */
993:
1.106 schwarze 994: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 995:
1.45 schwarze 996: if (DELIM_NONE != d) {
997: /*
998: * If we encounter closing punctuation, no word
1.100 schwarze 999: * has been emitted, no scope is open, and we're
1.45 schwarze 1000: * allowed to have an empty element, then start
1.98 schwarze 1001: * a new scope.
1.45 schwarze 1002: */
1.98 schwarze 1003: if ((d == DELIM_CLOSE ||
1004: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 1005: !cnt && !scope && nc && mayopen) {
1.106 schwarze 1006: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 1007: scope = 1;
1.98 schwarze 1008: cnt++;
1.106 schwarze 1009: if (tok == MDOC_Nm)
1.98 schwarze 1010: mayopen = 0;
1.45 schwarze 1011: }
1012: /*
1013: * Close out our scope, if one is open, before
1014: * any punctuation.
1015: */
1.105 schwarze 1016: if (scope)
1017: rew_elem(mdoc, tok);
1.45 schwarze 1018: scope = 0;
1.101 schwarze 1019: if (tok == MDOC_Fn)
1020: mayopen = 0;
1.98 schwarze 1021: } else if (mayopen && !scope) {
1.106 schwarze 1022: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 1023: scope = 1;
1.98 schwarze 1024: cnt++;
1.1 kristaps 1025: }
1.66 schwarze 1026:
1.106 schwarze 1027: dword(mdoc, line, la, p, d,
1028: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 1029:
1030: /*
1.100 schwarze 1031: * If the first argument is a closing delimiter,
1032: * do not suppress spacing before it.
1033: */
1034:
1035: if (firstarg && d == DELIM_CLOSE && !nc)
1036: mdoc->last->flags &= ~MDOC_DELIMC;
1037: firstarg = 0;
1038:
1039: /*
1.27 schwarze 1040: * `Fl' macros have their scope re-opened with each new
1041: * word so that the `-' can be added to each one without
1042: * having to parse out spaces.
1043: */
1.106 schwarze 1044: if (scope && tok == MDOC_Fl) {
1.105 schwarze 1045: rew_elem(mdoc, tok);
1.45 schwarze 1046: scope = 0;
1.27 schwarze 1047: }
1.1 kristaps 1048: }
1049:
1.105 schwarze 1050: if (scope)
1051: rew_elem(mdoc, tok);
1.1 kristaps 1052:
1053: /*
1054: * If no elements have been collected and we're allowed to have
1055: * empties (nc), open a scope and close it out. Otherwise,
1056: * raise a warning.
1057: */
1.32 schwarze 1058:
1.106 schwarze 1059: if ( ! cnt) {
1060: if (nc) {
1061: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1062: rew_last(mdoc, mdoc->last);
1063: } else {
1064: mdoc_argv_free(arg);
1065: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1066: line, ppos, mdoc_macronames[tok]);
1067: }
1.1 kristaps 1068: }
1.106 schwarze 1069: if (nl)
1070: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1071: }
1072:
1.107 schwarze 1073: static void
1.1 kristaps 1074: blk_full(MACRO_PROT_ARGS)
1075: {
1.109 schwarze 1076: int la, nl, parsed;
1.1 kristaps 1077: struct mdoc_arg *arg;
1.32 schwarze 1078: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 1079: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 1080: struct mdoc_node *n;
1.37 schwarze 1081: enum margserr ac, lac;
1.1 kristaps 1082: char *p;
1083:
1.76 schwarze 1084: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 1085:
1086: /* Skip items outside lists. */
1087:
1088: if (tok == MDOC_It) {
1089: for (n = mdoc->last; n; n = n->parent)
1.114 schwarze 1090: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1091: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.95 schwarze 1092: break;
1093: if (n == NULL) {
1094: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1095: line, ppos, "It %s", buf + *pos);
1.106 schwarze 1096: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 1097: rew_elem(mdoc, MDOC_br);
1.107 schwarze 1098: return;
1.95 schwarze 1099: }
1100: }
1.43 schwarze 1101:
1.32 schwarze 1102: /* Close out prior implicit scope. */
1.12 schwarze 1103:
1.106 schwarze 1104: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1105: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1106: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1107: }
1108:
1.32 schwarze 1109: /*
1.68 schwarze 1110: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1111: * macro openings. Implicit ones first close out prior scope
1112: * (seen above). Delay opening the head until necessary to
1113: * allow leading punctuation to print. Special consideration
1114: * for `It -column', which has phrase-part syntax instead of
1115: * regular child nodes.
1116: */
1117:
1.108 schwarze 1118: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1119: mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1120: head = body = NULL;
1.1 kristaps 1121:
1.32 schwarze 1122: /*
1.73 schwarze 1123: * Exception: Heads of `It' macros in `-diag' lists are not
1124: * parsed, even though `It' macros in general are parsed.
1125: */
1.107 schwarze 1126:
1.109 schwarze 1127: parsed = tok != MDOC_It ||
1128: mdoc->last->parent->tok != MDOC_Bl ||
1129: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1130:
1131: /*
1.32 schwarze 1132: * The `Nd' macro has all arguments in its body: it's a hybrid
1133: * of block partial-explicit and full-implicit. Stupid.
1134: */
1.12 schwarze 1135:
1.106 schwarze 1136: if (tok == MDOC_Nd) {
1137: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1138: rew_last(mdoc, head);
1.106 schwarze 1139: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1140: }
1141:
1.106 schwarze 1142: if (tok == MDOC_Bk)
1.80 schwarze 1143: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1144:
1.106 schwarze 1145: ac = ARGS_PEND;
1146: for (;;) {
1.32 schwarze 1147: la = *pos;
1.106 schwarze 1148: lac = ac;
1.76 schwarze 1149: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1150: if (ac == ARGS_PUNCT)
1.52 schwarze 1151: break;
1.106 schwarze 1152: if (ac == ARGS_EOLN) {
1153: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1154: break;
1155: /*
1156: * This is necessary: if the last token on a
1157: * line is a `Ta' or tab, then we'll get
1158: * ARGS_EOLN, so we must be smart enough to
1159: * reopen our scope if the last parse was a
1160: * phrase or partial phrase.
1161: */
1.106 schwarze 1162: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1163: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1164: break;
1.41 schwarze 1165: }
1166:
1.88 schwarze 1167: /*
1.46 schwarze 1168: * Emit leading punctuation (i.e., punctuation before
1169: * the MDOC_HEAD) for non-phrase types.
1170: */
1.32 schwarze 1171:
1.106 schwarze 1172: if (head == NULL &&
1173: ac != ARGS_PEND &&
1174: ac != ARGS_PHRASE &&
1175: ac != ARGS_PPHRASE &&
1176: ac != ARGS_QWORD &&
1177: mdoc_isdelim(p) == DELIM_OPEN) {
1178: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1179: continue;
1180: }
1181:
1.46 schwarze 1182: /* Open a head if one hasn't been opened. */
1.32 schwarze 1183:
1.106 schwarze 1184: if (head == NULL)
1185: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1186:
1.106 schwarze 1187: if (ac == ARGS_PHRASE ||
1188: ac == ARGS_PEND ||
1189: ac == ARGS_PPHRASE) {
1.107 schwarze 1190:
1.46 schwarze 1191: /*
1192: * If we haven't opened a body yet, rewind the
1193: * head; if we have, rewind that instead.
1194: */
1195:
1.106 schwarze 1196: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1197: mdoc, tok, line, ppos);
1198: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1199:
1200: /*
1201: * Process phrases: set whether we're in a
1202: * partial-phrase (this effects line handling)
1203: * then call down into the phrase parser.
1204: */
1205:
1.106 schwarze 1206: if (ac == ARGS_PPHRASE)
1.76 schwarze 1207: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1208: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1209: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1210: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1211: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1212: continue;
1213: }
1214:
1.109 schwarze 1215: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1216: break;
1.32 schwarze 1217: }
1.1 kristaps 1218:
1.106 schwarze 1219: if (head == NULL)
1220: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1221: if (nl)
1222: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1223: if (body != NULL)
1.46 schwarze 1224: goto out;
1.29 schwarze 1225:
1226: /*
1.34 schwarze 1227: * If there is an open (i.e., unvalidated) sub-block requiring
1228: * explicit close-out, postpone switching the current block from
1229: * head to body until the rew_sub() call closing out that
1230: * sub-block.
1.29 schwarze 1231: */
1.76 schwarze 1232: for (n = mdoc->last; n && n != head; n = n->parent) {
1.107 schwarze 1233: if (n->type == MDOC_BLOCK &&
1234: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1235: ! (n->flags & MDOC_VALID)) {
1.29 schwarze 1236: n->pending = head;
1.107 schwarze 1237: return;
1.29 schwarze 1238: }
1239: }
1.54 schwarze 1240:
1.32 schwarze 1241: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1242:
1.106 schwarze 1243: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1244: mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1245: out:
1.106 schwarze 1246: if (mdoc->flags & MDOC_FREECOL) {
1247: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1248: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1249: mdoc->flags &= ~MDOC_FREECOL;
1250: }
1.1 kristaps 1251: }
1252:
1.107 schwarze 1253: static void
1.1 kristaps 1254: blk_part_imp(MACRO_PROT_ARGS)
1255: {
1.43 schwarze 1256: int la, nl;
1.36 schwarze 1257: enum margserr ac;
1.1 kristaps 1258: char *p;
1.32 schwarze 1259: struct mdoc_node *blk; /* saved block context */
1260: struct mdoc_node *body; /* saved body context */
1261: struct mdoc_node *n;
1.1 kristaps 1262:
1.76 schwarze 1263: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1264:
1.32 schwarze 1265: /*
1266: * A macro that spans to the end of the line. This is generally
1267: * (but not necessarily) called as the first macro. The block
1268: * has a head as the immediate child, which is always empty,
1269: * followed by zero or more opening punctuation nodes, then the
1270: * body (which may be empty, depending on the macro), then zero
1271: * or more closing punctuation nodes.
1272: */
1.22 schwarze 1273:
1.106 schwarze 1274: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.118 schwarze 1275: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1276:
1.32 schwarze 1277: /*
1278: * Open the body scope "on-demand", that is, after we've
1279: * processed all our the leading delimiters (open parenthesis,
1280: * etc.).
1281: */
1.1 kristaps 1282:
1.32 schwarze 1283: for (body = NULL; ; ) {
1.22 schwarze 1284: la = *pos;
1.76 schwarze 1285: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1286: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1287: break;
1288:
1.106 schwarze 1289: if (body == NULL && ac != ARGS_QWORD &&
1290: mdoc_isdelim(p) == DELIM_OPEN) {
1291: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1292: continue;
1.80 schwarze 1293: }
1.1 kristaps 1294:
1.106 schwarze 1295: if (body == NULL)
1296: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1297:
1.109 schwarze 1298: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1299: break;
1.32 schwarze 1300: }
1.106 schwarze 1301: if (body == NULL)
1302: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1303:
1.47 schwarze 1304: /*
1305: * If there is an open sub-block requiring explicit close-out,
1306: * postpone closing out the current block
1307: * until the rew_sub() call closing out the sub-block.
1308: */
1.107 schwarze 1309:
1.76 schwarze 1310: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1311: n = n->parent) {
1.106 schwarze 1312: if (n->type == MDOC_BLOCK &&
1313: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1314: ! (n->flags & MDOC_VALID)) {
1.76 schwarze 1315: make_pending(n, tok, mdoc, line, ppos);
1.106 schwarze 1316: mdoc_endbody_alloc(mdoc, line, ppos,
1317: tok, body, ENDBODY_NOSPACE);
1.107 schwarze 1318: return;
1.47 schwarze 1319: }
1320: }
1.91 schwarze 1321: assert(n == body);
1.120 ! schwarze 1322: rew_last(mdoc, body);
1.106 schwarze 1323: if (nl)
1324: append_delims(mdoc, line, pos, buf);
1.120 ! schwarze 1325: rew_last(mdoc, blk);
! 1326:
! 1327: /*
! 1328: * The current block extends an enclosing block.
! 1329: * Now that the current block ends, close the enclosing block, too.
! 1330: */
! 1331:
! 1332: while ((blk = blk->pending) != NULL) {
! 1333: rew_last(mdoc, blk);
! 1334: if (blk->type == MDOC_HEAD)
! 1335: mdoc_body_alloc(mdoc, blk->line, blk->pos, blk->tok);
! 1336: }
1.74 schwarze 1337:
1338: /* Move trailing .Ns out of scope. */
1339:
1340: for (n = body->child; n && n->next; n = n->next)
1341: /* Do nothing. */ ;
1.106 schwarze 1342: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1343: mdoc_node_relink(mdoc, n);
1.1 kristaps 1344: }
1345:
1.107 schwarze 1346: static void
1.1 kristaps 1347: blk_part_exp(MACRO_PROT_ARGS)
1348: {
1.37 schwarze 1349: int la, nl;
1.36 schwarze 1350: enum margserr ac;
1.32 schwarze 1351: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1352: char *p;
1353:
1.76 schwarze 1354: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1355:
1.32 schwarze 1356: /*
1357: * The opening of an explicit macro having zero or more leading
1358: * punctuation nodes; a head with optional single element (the
1359: * case of `Eo'); and a body that may be empty.
1360: */
1.22 schwarze 1361:
1.106 schwarze 1362: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1363: head = NULL;
1364: for (;;) {
1.22 schwarze 1365: la = *pos;
1.76 schwarze 1366: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1367: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1368: break;
1369:
1.32 schwarze 1370: /* Flush out leading punctuation. */
1371:
1.106 schwarze 1372: if (head == NULL && ac != ARGS_QWORD &&
1373: mdoc_isdelim(p) == DELIM_OPEN) {
1374: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1375: continue;
1.80 schwarze 1376: }
1.32 schwarze 1377:
1.106 schwarze 1378: if (head == NULL) {
1379: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1380: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1381: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1382: rew_last(mdoc, head);
1383: mdoc_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1384: if (tok == MDOC_Eo)
1.32 schwarze 1385: continue;
1386: }
1387:
1.109 schwarze 1388: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1389: break;
1.1 kristaps 1390: }
1391:
1.32 schwarze 1392: /* Clean-up to leave in a consistent state. */
1393:
1.119 schwarze 1394: if (head == NULL) {
1395: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.106 schwarze 1396: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1397: }
1.106 schwarze 1398: if (nl)
1399: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1400: }
1401:
1.107 schwarze 1402: static void
1.1 kristaps 1403: in_line_argn(MACRO_PROT_ARGS)
1404: {
1.37 schwarze 1405: int la, flushed, j, maxargs, nl;
1.36 schwarze 1406: enum margserr ac;
1407: struct mdoc_arg *arg;
1408: char *p;
1409: enum mdoct ntok;
1.1 kristaps 1410:
1.112 schwarze 1411: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1412:
1.32 schwarze 1413: /*
1414: * A line macro that has a fixed number of arguments (maxargs).
1415: * Only open the scope once the first non-leading-punctuation is
1416: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1417: * keep it open until the maximum number of arguments are
1418: * exhausted.
1419: */
1.1 kristaps 1420:
1421: switch (tok) {
1.88 schwarze 1422: case MDOC_Ap:
1.1 kristaps 1423: /* FALLTHROUGH */
1.88 schwarze 1424: case MDOC_Ns:
1.1 kristaps 1425: /* FALLTHROUGH */
1.88 schwarze 1426: case MDOC_Ux:
1.1 kristaps 1427: maxargs = 0;
1428: break;
1.88 schwarze 1429: case MDOC_Bx:
1.64 schwarze 1430: /* FALLTHROUGH */
1.89 schwarze 1431: case MDOC_Es:
1432: /* FALLTHROUGH */
1.88 schwarze 1433: case MDOC_Xr:
1.28 schwarze 1434: maxargs = 2;
1435: break;
1.1 kristaps 1436: default:
1437: maxargs = 1;
1438: break;
1439: }
1440:
1.108 schwarze 1441: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1442:
1.112 schwarze 1443: p = NULL;
1444: flushed = j = 0;
1445: for (;;) {
1.22 schwarze 1446: la = *pos;
1.76 schwarze 1447: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.112 schwarze 1448: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1449: if (j < 2 && tok == MDOC_Pf)
1450: mandoc_vmsg(MANDOCERR_PF_SKIP,
1451: mdoc->parse, line, ppos, "Pf %s",
1452: p == NULL ? "at eol" : p);
1.1 kristaps 1453: break;
1.112 schwarze 1454: }
1.1 kristaps 1455:
1.106 schwarze 1456: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1457: ac != ARGS_QWORD && j == 0 &&
1458: mdoc_isdelim(p) == DELIM_OPEN) {
1459: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1460: continue;
1.106 schwarze 1461: } else if (j == 0)
1462: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.32 schwarze 1463:
1464: if (j == maxargs && ! flushed) {
1.105 schwarze 1465: rew_elem(mdoc, tok);
1.32 schwarze 1466: flushed = 1;
1467: }
1468:
1.112 schwarze 1469: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1470: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1471:
1.106 schwarze 1472: if (ntok != MDOC_MAX) {
1.105 schwarze 1473: if ( ! flushed)
1474: rew_elem(mdoc, tok);
1.1 kristaps 1475: flushed = 1;
1.107 schwarze 1476: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.32 schwarze 1477: j++;
1.1 kristaps 1478: break;
1479: }
1480:
1.106 schwarze 1481: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1482: ac != ARGS_QWORD && ! flushed &&
1483: mdoc_isdelim(p) != DELIM_NONE) {
1.105 schwarze 1484: rew_elem(mdoc, tok);
1.1 kristaps 1485: flushed = 1;
1.28 schwarze 1486: }
1487:
1.106 schwarze 1488: dword(mdoc, line, la, p, DELIM_MAX,
1489: MDOC_JOIN & mdoc_macros[tok].flags);
1.32 schwarze 1490: j++;
1.1 kristaps 1491: }
1492:
1.112 schwarze 1493: if (j == 0) {
1.106 schwarze 1494: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.112 schwarze 1495: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1496: append_delims(mdoc, line, pos, buf);
1497: }
1.105 schwarze 1498: if ( ! flushed)
1499: rew_elem(mdoc, tok);
1.106 schwarze 1500: if (nl)
1501: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1502: }
1503:
1.107 schwarze 1504: static void
1.1 kristaps 1505: in_line_eoln(MACRO_PROT_ARGS)
1506: {
1.36 schwarze 1507: struct mdoc_arg *arg;
1.1 kristaps 1508:
1.53 schwarze 1509: if (tok == MDOC_Pp)
1.76 schwarze 1510: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.53 schwarze 1511:
1.108 schwarze 1512: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1513: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1514: if (parse_rest(mdoc, tok, line, pos, buf))
1515: return;
1516: rew_elem(mdoc, tok);
1517: }
1518:
1519: /*
1520: * The simplest argument parser available: Parse the remaining
1521: * words until the end of the phrase or line and return 0
1522: * or until the next macro, call that macro, and return 1.
1523: */
1524: static int
1525: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1526: {
1527: int la;
1.1 kristaps 1528:
1529: for (;;) {
1530: la = *pos;
1.109 schwarze 1531: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1532: return(0);
1.109 schwarze 1533: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1534: return(1);
1.1 kristaps 1535: }
1.28 schwarze 1536: }
1537:
1.107 schwarze 1538: static void
1.28 schwarze 1539: ctx_synopsis(MACRO_PROT_ARGS)
1540: {
1.37 schwarze 1541:
1.107 schwarze 1542: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1543: in_line(mdoc, tok, line, ppos, pos, buf);
1544: else if (tok == MDOC_Nm)
1545: blk_full(mdoc, tok, line, ppos, pos, buf);
1546: else {
1547: assert(tok == MDOC_Vt);
1548: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1549: }
1.1 kristaps 1550: }
1551:
1.17 schwarze 1552: /*
1553: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1554: * They're unusual because they're basically free-form text until a
1555: * macro is encountered.
1556: */
1.107 schwarze 1557: static void
1.46 schwarze 1558: phrase_ta(MACRO_PROT_ARGS)
1559: {
1.78 schwarze 1560: struct mdoc_node *n;
1.46 schwarze 1561:
1.78 schwarze 1562: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1563:
1.78 schwarze 1564: n = mdoc->last;
1.115 schwarze 1565: while (n != NULL &&
1566: (n->tok != MDOC_Bl || n->flags & (MDOC_VALID | MDOC_BREAK)))
1.78 schwarze 1567: n = n->parent;
1.107 schwarze 1568: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1569: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1570: line, ppos, "Ta");
1.107 schwarze 1571: return;
1.78 schwarze 1572: }
1.46 schwarze 1573:
1.78 schwarze 1574: /* Advance to the next column. */
1.106 schwarze 1575:
1576: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1577: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1578: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1579: }
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