Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.114
1.114 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.113 2014/12/13 13:13:26 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.99 schwarze 4: * Copyright (c) 2010, 2012, 2013, 2014 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: */
1.48 schwarze 364: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
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: {
551: struct mdoc_node *n;
552:
1.76 schwarze 553: n = mdoc->last;
1.48 schwarze 554: while (n) {
555: switch (rew_dohalt(tok, t, n)) {
1.88 schwarze 556: case REWIND_NONE:
1.106 schwarze 557: return;
1.88 schwarze 558: case REWIND_THIS:
1.81 schwarze 559: n->lastline = line -
1.106 schwarze 560: (mdoc->flags & MDOC_NEWLINE &&
561: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.48 schwarze 562: break;
1.88 schwarze 563: case REWIND_FORCE:
1.94 schwarze 564: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.88 schwarze 565: line, ppos, "%s breaks %s",
566: mdoc_macronames[tok],
567: mdoc_macronames[n->tok]);
1.59 schwarze 568: /* FALLTHROUGH */
1.88 schwarze 569: case REWIND_MORE:
1.81 schwarze 570: n->lastline = line -
1.106 schwarze 571: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.48 schwarze 572: n = n->parent;
573: continue;
1.88 schwarze 574: case REWIND_LATER:
1.76 schwarze 575: if (make_pending(n, tok, mdoc, line, ppos) ||
1.106 schwarze 576: t != MDOC_BLOCK)
577: return;
1.59 schwarze 578: /* FALLTHROUGH */
1.88 schwarze 579: case REWIND_ERROR:
1.94 schwarze 580: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
581: mdoc->parse, line, ppos,
582: mdoc_macronames[tok]);
1.106 schwarze 583: return;
1.22 schwarze 584: }
1.48 schwarze 585: break;
1.1 kristaps 586: }
587: assert(n);
1.105 schwarze 588: rew_last(mdoc, n);
1.29 schwarze 589:
590: /*
1.47 schwarze 591: * The current block extends an enclosing block.
592: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 593: */
1.106 schwarze 594: while ((n = n->pending) != NULL) {
1.105 schwarze 595: rew_last(mdoc, n);
1.106 schwarze 596: if (n->type == MDOC_HEAD)
597: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
1.29 schwarze 598: }
1.1 kristaps 599: }
600:
1.66 schwarze 601: /*
602: * Allocate a word and check whether it's punctuation or not.
603: * Punctuation consists of those tokens found in mdoc_isdelim().
604: */
1.106 schwarze 605: static void
1.80 schwarze 606: dword(struct mdoc *mdoc, int line, int col, const char *p,
607: enum mdelim d, int may_append)
1.66 schwarze 608: {
1.88 schwarze 609:
1.106 schwarze 610: if (d == DELIM_MAX)
1.66 schwarze 611: d = mdoc_isdelim(p);
612:
1.80 schwarze 613: if (may_append &&
1.106 schwarze 614: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
615: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
616: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 617: mdoc_word_append(mdoc, p);
1.106 schwarze 618: return;
1.80 schwarze 619: }
620:
1.106 schwarze 621: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 622:
1.71 schwarze 623: /*
1.100 schwarze 624: * If the word consists of a bare delimiter,
625: * flag the new node accordingly,
626: * unless doing so was vetoed by the invoking macro.
627: * Always clear the veto, it is only valid for one word.
1.71 schwarze 628: */
629:
1.100 schwarze 630: if (d == DELIM_OPEN)
631: mdoc->last->flags |= MDOC_DELIMO;
632: else if (d == DELIM_CLOSE &&
633: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 634: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 635: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 636: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 637: }
1.1 kristaps 638:
1.106 schwarze 639: static void
1.76 schwarze 640: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 641: {
1.109 schwarze 642: char *p;
1.42 schwarze 643: int la;
1.1 kristaps 644:
1.106 schwarze 645: if (buf[*pos] == '\0')
646: return;
1.1 kristaps 647:
648: for (;;) {
1.42 schwarze 649: la = *pos;
1.109 schwarze 650: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 651: break;
1.80 schwarze 652: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 653:
1.42 schwarze 654: /*
655: * If we encounter end-of-sentence symbols, then trigger
656: * the double-space.
657: *
1.68 schwarze 658: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 659: * the last symbol, such that `. )' will cause the
660: * correct double-spacing. However, (1) groff isn't
661: * smart enough to do this and (2) it would require
662: * knowing which symbols break this behaviour, for
1.68 schwarze 663: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 664: */
1.106 schwarze 665:
1.84 schwarze 666: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 667: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 668: }
669: }
670:
671: /*
1.109 schwarze 672: * Parse one word.
673: * If it is a macro, call it and return 1.
674: * Otherwise, allocate it and return 0.
675: */
676: static int
677: macro_or_word(MACRO_PROT_ARGS, int parsed)
678: {
679: char *p;
680: enum mdoct ntok;
681:
682: p = buf + ppos;
683: ntok = MDOC_MAX;
1.113 schwarze 684: if (*p == '"')
1.109 schwarze 685: p++;
1.113 schwarze 686: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 687: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 688:
689: if (ntok == MDOC_MAX) {
690: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
691: mdoc_macros[tok].flags & MDOC_JOIN);
692: return(0);
693: } else {
694: if (mdoc_macros[tok].fp == in_line_eoln)
695: rew_elem(mdoc, tok);
696: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
697: if (tok == MDOC_MAX)
698: append_delims(mdoc, line, pos, buf);
699: return(1);
700: }
701: }
702:
703: /*
1.88 schwarze 704: * Close out block partial/full explicit.
1.1 kristaps 705: */
1.107 schwarze 706: static void
1.1 kristaps 707: blk_exp_close(MACRO_PROT_ARGS)
708: {
1.47 schwarze 709: struct mdoc_node *body; /* Our own body. */
1.104 schwarze 710: struct mdoc_node *endbody; /* Our own end marker. */
1.47 schwarze 711: struct mdoc_node *later; /* A sub-block starting later. */
712: struct mdoc_node *n; /* For searching backwards. */
713:
1.88 schwarze 714: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 715: enum margserr ac;
1.47 schwarze 716: enum mdoct atok, ntok;
1.1 kristaps 717: char *p;
718:
1.76 schwarze 719: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 720:
1.1 kristaps 721: switch (tok) {
1.88 schwarze 722: case MDOC_Ec:
1.1 kristaps 723: maxargs = 1;
724: break;
1.88 schwarze 725: case MDOC_Ek:
1.82 schwarze 726: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 727: /* FALLTHROUGH */
1.1 kristaps 728: default:
729: maxargs = 0;
730: break;
731: }
732:
1.47 schwarze 733: /*
734: * Search backwards for beginnings of blocks,
735: * both of our own and of pending sub-blocks.
736: */
1.107 schwarze 737:
1.47 schwarze 738: atok = rew_alt(tok);
1.104 schwarze 739: body = endbody = later = NULL;
1.76 schwarze 740: for (n = mdoc->last; n; n = n->parent) {
1.106 schwarze 741: if (n->flags & MDOC_VALID)
1.47 schwarze 742: continue;
743:
744: /* Remember the start of our own body. */
1.107 schwarze 745:
1.106 schwarze 746: if (n->type == MDOC_BODY && atok == n->tok) {
747: if (n->end == ENDBODY_NOT)
1.47 schwarze 748: body = n;
749: continue;
750: }
751:
1.106 schwarze 752: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 753: continue;
754: if (atok == n->tok) {
755: assert(body);
756:
757: /*
758: * Found the start of our own block.
759: * When there is no pending sub block,
760: * just proceed to closing out.
761: */
1.107 schwarze 762:
1.106 schwarze 763: if (later == NULL)
1.47 schwarze 764: break;
765:
1.88 schwarze 766: /*
1.47 schwarze 767: * When there is a pending sub block,
768: * postpone closing out the current block
769: * until the rew_sub() closing out the sub-block.
770: */
1.107 schwarze 771:
1.76 schwarze 772: make_pending(later, tok, mdoc, line, ppos);
1.47 schwarze 773:
774: /*
775: * Mark the place where the formatting - but not
776: * the scope - of the current block ends.
777: */
1.107 schwarze 778:
1.106 schwarze 779: mdoc_endbody_alloc(mdoc, line, ppos,
780: atok, body, ENDBODY_SPACE);
1.107 schwarze 781:
782: /*
783: * If a block closing macro taking arguments
784: * breaks another block, put the arguments
785: * into the end marker and remeber the
786: * end marker in order to close it out.
787: */
788:
1.104 schwarze 789: if (maxargs) {
790: endbody = mdoc->last;
791: mdoc->next = MDOC_NEXT_CHILD;
792: }
1.47 schwarze 793: break;
794: }
795:
796: /*
797: * When finding an open sub block, remember the last
798: * open explicit block, or, in case there are only
799: * implicit ones, the first open implicit block.
800: */
1.107 schwarze 801:
1.47 schwarze 802: if (later &&
1.106 schwarze 803: mdoc_macros[later->tok].flags & MDOC_EXPLICIT)
1.47 schwarze 804: continue;
1.106 schwarze 805: if (n->tok != MDOC_It)
1.47 schwarze 806: later = n;
807: }
1.107 schwarze 808: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1.47 schwarze 809:
1.106 schwarze 810: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
811: if (buf[*pos] != '\0')
1.93 schwarze 812: mandoc_vmsg(MANDOCERR_ARG_SKIP,
813: mdoc->parse, line, ppos,
814: "%s %s", mdoc_macronames[tok],
815: buf + *pos);
1.106 schwarze 816: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.107 schwarze 817: return;
1.1 kristaps 818: }
819:
1.104 schwarze 820: if (maxargs && endbody == NULL) {
821: if (n == NULL) {
822: /*
823: * Stray .Ec without previous .Eo:
824: * Break the output line, ignore any arguments.
825: */
1.106 schwarze 826: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 827: rew_elem(mdoc, MDOC_br);
1.106 schwarze 828: } else
829: mdoc_tail_alloc(mdoc, line, ppos, atok);
1.104 schwarze 830: }
1.1 kristaps 831:
1.104 schwarze 832: flushed = n == NULL;
833: for (j = 0; ; j++) {
1.1 kristaps 834: lastarg = *pos;
835:
836: if (j == maxargs && ! flushed) {
1.106 schwarze 837: if (endbody == NULL)
838: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
839: else
1.105 schwarze 840: rew_last(mdoc, endbody);
1.1 kristaps 841: flushed = 1;
842: }
843:
1.76 schwarze 844: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 845: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 846: break;
847:
1.111 schwarze 848: ntok = ac == ARGS_QWORD ? MDOC_MAX :
849: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 850:
1.106 schwarze 851: if (ntok == MDOC_MAX) {
852: dword(mdoc, line, lastarg, p, DELIM_MAX,
853: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 854: continue;
855: }
1.1 kristaps 856:
1.36 schwarze 857: if ( ! flushed) {
1.106 schwarze 858: if (endbody == NULL)
859: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
860: else
1.105 schwarze 861: rew_last(mdoc, endbody);
1.36 schwarze 862: flushed = 1;
863: }
1.79 schwarze 864: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 865: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 866: break;
1.1 kristaps 867: }
868:
1.105 schwarze 869: if ( ! flushed) {
1.106 schwarze 870: if (endbody == NULL)
871: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
872: else
1.105 schwarze 873: rew_last(mdoc, endbody);
874: }
1.106 schwarze 875: if (nl)
876: append_delims(mdoc, line, pos, buf);
1.1 kristaps 877: }
878:
1.107 schwarze 879: static void
1.1 kristaps 880: in_line(MACRO_PROT_ARGS)
881: {
1.100 schwarze 882: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.36 schwarze 883: enum mdoct ntok;
884: enum margserr ac;
1.40 schwarze 885: enum mdelim d;
1.36 schwarze 886: struct mdoc_arg *arg;
887: char *p;
1.1 kristaps 888:
1.76 schwarze 889: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 890:
1.1 kristaps 891: /*
892: * Whether we allow ignored elements (those without content,
893: * usually because of reserved words) to squeak by.
894: */
1.32 schwarze 895:
1.1 kristaps 896: switch (tok) {
1.88 schwarze 897: case MDOC_An:
1.19 schwarze 898: /* FALLTHROUGH */
1.88 schwarze 899: case MDOC_Ar:
1.1 kristaps 900: /* FALLTHROUGH */
1.88 schwarze 901: case MDOC_Fl:
1.1 kristaps 902: /* FALLTHROUGH */
1.88 schwarze 903: case MDOC_Mt:
1.18 schwarze 904: /* FALLTHROUGH */
1.88 schwarze 905: case MDOC_Nm:
1.19 schwarze 906: /* FALLTHROUGH */
1.88 schwarze 907: case MDOC_Pa:
1.1 kristaps 908: nc = 1;
909: break;
910: default:
911: nc = 0;
912: break;
913: }
914:
1.108 schwarze 915: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 916:
1.100 schwarze 917: d = DELIM_NONE;
918: firstarg = 1;
1.98 schwarze 919: mayopen = 1;
1.45 schwarze 920: for (cnt = scope = 0;; ) {
1.1 kristaps 921: la = *pos;
1.76 schwarze 922: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 923:
1.100 schwarze 924: /*
925: * At the end of a macro line,
926: * opening delimiters do not suppress spacing.
927: */
928:
929: if (ac == ARGS_EOLN) {
930: if (d == DELIM_OPEN)
931: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 932: break;
1.100 schwarze 933: }
934:
935: /*
936: * The rest of the macro line is only punctuation,
937: * to be handled by append_delims().
938: * If there were no other arguments,
939: * do not allow the first one to suppress spacing,
940: * even if it turns out to be a closing one.
941: */
942:
943: if (ac == ARGS_PUNCT) {
944: if (cnt == 0 && nc == 0)
945: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 946: break;
1.100 schwarze 947: }
1.1 kristaps 948:
1.101 schwarze 949: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 950: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 951:
1.88 schwarze 952: /*
1.1 kristaps 953: * In this case, we've located a submacro and must
954: * execute it. Close out scope, if open. If no
955: * elements have been generated, either create one (nc)
956: * or raise a warning.
957: */
958:
1.106 schwarze 959: if (ntok != MDOC_MAX) {
1.105 schwarze 960: if (scope)
961: rew_elem(mdoc, tok);
1.106 schwarze 962: if (nc && ! cnt) {
963: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 964: rew_last(mdoc, mdoc->last);
1.106 schwarze 965: } else if ( ! nc && ! cnt) {
1.1 kristaps 966: mdoc_argv_free(arg);
1.92 schwarze 967: mandoc_msg(MANDOCERR_MACRO_EMPTY,
968: mdoc->parse, line, ppos,
969: mdoc_macronames[tok]);
1.1 kristaps 970: }
1.107 schwarze 971: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 972: if (nl)
973: append_delims(mdoc, line, pos, buf);
1.107 schwarze 974: return;
1.88 schwarze 975: }
1.1 kristaps 976:
1.88 schwarze 977: /*
1.1 kristaps 978: * Non-quote-enclosed punctuation. Set up our scope, if
979: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 980: * the word.
1.1 kristaps 981: */
982:
1.106 schwarze 983: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 984:
1.45 schwarze 985: if (DELIM_NONE != d) {
986: /*
987: * If we encounter closing punctuation, no word
1.100 schwarze 988: * has been emitted, no scope is open, and we're
1.45 schwarze 989: * allowed to have an empty element, then start
1.98 schwarze 990: * a new scope.
1.45 schwarze 991: */
1.98 schwarze 992: if ((d == DELIM_CLOSE ||
993: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 994: !cnt && !scope && nc && mayopen) {
1.106 schwarze 995: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 996: scope = 1;
1.98 schwarze 997: cnt++;
1.106 schwarze 998: if (tok == MDOC_Nm)
1.98 schwarze 999: mayopen = 0;
1.45 schwarze 1000: }
1001: /*
1002: * Close out our scope, if one is open, before
1003: * any punctuation.
1004: */
1.105 schwarze 1005: if (scope)
1006: rew_elem(mdoc, tok);
1.45 schwarze 1007: scope = 0;
1.101 schwarze 1008: if (tok == MDOC_Fn)
1009: mayopen = 0;
1.98 schwarze 1010: } else if (mayopen && !scope) {
1.106 schwarze 1011: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 1012: scope = 1;
1.98 schwarze 1013: cnt++;
1.1 kristaps 1014: }
1.66 schwarze 1015:
1.106 schwarze 1016: dword(mdoc, line, la, p, d,
1017: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 1018:
1019: /*
1.100 schwarze 1020: * If the first argument is a closing delimiter,
1021: * do not suppress spacing before it.
1022: */
1023:
1024: if (firstarg && d == DELIM_CLOSE && !nc)
1025: mdoc->last->flags &= ~MDOC_DELIMC;
1026: firstarg = 0;
1027:
1028: /*
1.27 schwarze 1029: * `Fl' macros have their scope re-opened with each new
1030: * word so that the `-' can be added to each one without
1031: * having to parse out spaces.
1032: */
1.106 schwarze 1033: if (scope && tok == MDOC_Fl) {
1.105 schwarze 1034: rew_elem(mdoc, tok);
1.45 schwarze 1035: scope = 0;
1.27 schwarze 1036: }
1.1 kristaps 1037: }
1038:
1.105 schwarze 1039: if (scope)
1040: rew_elem(mdoc, tok);
1.1 kristaps 1041:
1042: /*
1043: * If no elements have been collected and we're allowed to have
1044: * empties (nc), open a scope and close it out. Otherwise,
1045: * raise a warning.
1046: */
1.32 schwarze 1047:
1.106 schwarze 1048: if ( ! cnt) {
1049: if (nc) {
1050: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1051: rew_last(mdoc, mdoc->last);
1052: } else {
1053: mdoc_argv_free(arg);
1054: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1055: line, ppos, mdoc_macronames[tok]);
1056: }
1.1 kristaps 1057: }
1.106 schwarze 1058: if (nl)
1059: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1060: }
1061:
1.107 schwarze 1062: static void
1.1 kristaps 1063: blk_full(MACRO_PROT_ARGS)
1064: {
1.109 schwarze 1065: int la, nl, parsed;
1.1 kristaps 1066: struct mdoc_arg *arg;
1.32 schwarze 1067: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 1068: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 1069: struct mdoc_node *n;
1.37 schwarze 1070: enum margserr ac, lac;
1.1 kristaps 1071: char *p;
1072:
1.76 schwarze 1073: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 1074:
1075: /* Skip items outside lists. */
1076:
1077: if (tok == MDOC_It) {
1078: for (n = mdoc->last; n; n = n->parent)
1.114 ! schwarze 1079: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
! 1080: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.95 schwarze 1081: break;
1082: if (n == NULL) {
1083: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1084: line, ppos, "It %s", buf + *pos);
1.106 schwarze 1085: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 1086: rew_elem(mdoc, MDOC_br);
1.107 schwarze 1087: return;
1.95 schwarze 1088: }
1089: }
1.43 schwarze 1090:
1.32 schwarze 1091: /* Close out prior implicit scope. */
1.12 schwarze 1092:
1.106 schwarze 1093: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1094: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1095: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1096: }
1097:
1.32 schwarze 1098: /*
1.68 schwarze 1099: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1100: * macro openings. Implicit ones first close out prior scope
1101: * (seen above). Delay opening the head until necessary to
1102: * allow leading punctuation to print. Special consideration
1103: * for `It -column', which has phrase-part syntax instead of
1104: * regular child nodes.
1105: */
1106:
1.108 schwarze 1107: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1108: mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1109: head = body = NULL;
1.1 kristaps 1110:
1.32 schwarze 1111: /*
1.73 schwarze 1112: * Exception: Heads of `It' macros in `-diag' lists are not
1113: * parsed, even though `It' macros in general are parsed.
1114: */
1.107 schwarze 1115:
1.109 schwarze 1116: parsed = tok != MDOC_It ||
1117: mdoc->last->parent->tok != MDOC_Bl ||
1118: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1119:
1120: /*
1.32 schwarze 1121: * The `Nd' macro has all arguments in its body: it's a hybrid
1122: * of block partial-explicit and full-implicit. Stupid.
1123: */
1.12 schwarze 1124:
1.106 schwarze 1125: if (tok == MDOC_Nd) {
1126: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1127: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1128: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1129: }
1130:
1.106 schwarze 1131: if (tok == MDOC_Bk)
1.80 schwarze 1132: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1133:
1.106 schwarze 1134: ac = ARGS_PEND;
1135: for (;;) {
1.32 schwarze 1136: la = *pos;
1.106 schwarze 1137: lac = ac;
1.76 schwarze 1138: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1139: if (ac == ARGS_PUNCT)
1.52 schwarze 1140: break;
1.106 schwarze 1141: if (ac == ARGS_EOLN) {
1142: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1143: break;
1144: /*
1145: * This is necessary: if the last token on a
1146: * line is a `Ta' or tab, then we'll get
1147: * ARGS_EOLN, so we must be smart enough to
1148: * reopen our scope if the last parse was a
1149: * phrase or partial phrase.
1150: */
1.106 schwarze 1151: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1152: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1153: break;
1.41 schwarze 1154: }
1155:
1.88 schwarze 1156: /*
1.46 schwarze 1157: * Emit leading punctuation (i.e., punctuation before
1158: * the MDOC_HEAD) for non-phrase types.
1159: */
1.32 schwarze 1160:
1.106 schwarze 1161: if (head == NULL &&
1162: ac != ARGS_PEND &&
1163: ac != ARGS_PHRASE &&
1164: ac != ARGS_PPHRASE &&
1165: ac != ARGS_QWORD &&
1166: mdoc_isdelim(p) == DELIM_OPEN) {
1167: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1168: continue;
1169: }
1170:
1.46 schwarze 1171: /* Open a head if one hasn't been opened. */
1.32 schwarze 1172:
1.106 schwarze 1173: if (head == NULL)
1174: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1175:
1.106 schwarze 1176: if (ac == ARGS_PHRASE ||
1177: ac == ARGS_PEND ||
1178: ac == ARGS_PPHRASE) {
1.107 schwarze 1179:
1.46 schwarze 1180: /*
1181: * If we haven't opened a body yet, rewind the
1182: * head; if we have, rewind that instead.
1183: */
1184:
1.106 schwarze 1185: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1186: mdoc, tok, line, ppos);
1187: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1188:
1189: /*
1190: * Process phrases: set whether we're in a
1191: * partial-phrase (this effects line handling)
1192: * then call down into the phrase parser.
1193: */
1194:
1.106 schwarze 1195: if (ac == ARGS_PPHRASE)
1.76 schwarze 1196: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1197: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1198: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1199: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1200: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1201: continue;
1202: }
1203:
1.109 schwarze 1204: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1205: break;
1.32 schwarze 1206: }
1.1 kristaps 1207:
1.106 schwarze 1208: if (head == NULL)
1209: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1210: if (nl)
1211: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1212: if (body != NULL)
1.46 schwarze 1213: goto out;
1.29 schwarze 1214:
1215: /*
1.34 schwarze 1216: * If there is an open (i.e., unvalidated) sub-block requiring
1217: * explicit close-out, postpone switching the current block from
1218: * head to body until the rew_sub() call closing out that
1219: * sub-block.
1.29 schwarze 1220: */
1.76 schwarze 1221: for (n = mdoc->last; n && n != head; n = n->parent) {
1.107 schwarze 1222: if (n->type == MDOC_BLOCK &&
1223: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1224: ! (n->flags & MDOC_VALID)) {
1.29 schwarze 1225: n->pending = head;
1.107 schwarze 1226: return;
1.29 schwarze 1227: }
1228: }
1.54 schwarze 1229:
1.32 schwarze 1230: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1231:
1.106 schwarze 1232: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1233: mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1234: out:
1.106 schwarze 1235: if (mdoc->flags & MDOC_FREECOL) {
1236: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1237: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1238: mdoc->flags &= ~MDOC_FREECOL;
1239: }
1.1 kristaps 1240: }
1241:
1.107 schwarze 1242: static void
1.1 kristaps 1243: blk_part_imp(MACRO_PROT_ARGS)
1244: {
1.43 schwarze 1245: int la, nl;
1.36 schwarze 1246: enum margserr ac;
1.1 kristaps 1247: char *p;
1.32 schwarze 1248: struct mdoc_node *blk; /* saved block context */
1249: struct mdoc_node *body; /* saved body context */
1250: struct mdoc_node *n;
1.1 kristaps 1251:
1.76 schwarze 1252: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1253:
1.32 schwarze 1254: /*
1255: * A macro that spans to the end of the line. This is generally
1256: * (but not necessarily) called as the first macro. The block
1257: * has a head as the immediate child, which is always empty,
1258: * followed by zero or more opening punctuation nodes, then the
1259: * body (which may be empty, depending on the macro), then zero
1260: * or more closing punctuation nodes.
1261: */
1.22 schwarze 1262:
1.106 schwarze 1263: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1264: mdoc_head_alloc(mdoc, line, ppos, tok);
1265: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1.1 kristaps 1266:
1.32 schwarze 1267: /*
1268: * Open the body scope "on-demand", that is, after we've
1269: * processed all our the leading delimiters (open parenthesis,
1270: * etc.).
1271: */
1.1 kristaps 1272:
1.32 schwarze 1273: for (body = NULL; ; ) {
1.22 schwarze 1274: la = *pos;
1.76 schwarze 1275: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1276: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1277: break;
1278:
1.106 schwarze 1279: if (body == NULL && ac != ARGS_QWORD &&
1280: mdoc_isdelim(p) == DELIM_OPEN) {
1281: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1282: continue;
1.80 schwarze 1283: }
1.1 kristaps 1284:
1.106 schwarze 1285: if (body == NULL)
1286: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1287:
1.109 schwarze 1288: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1289: break;
1.32 schwarze 1290: }
1.106 schwarze 1291: if (body == NULL)
1292: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1293:
1.47 schwarze 1294: /*
1295: * If there is an open sub-block requiring explicit close-out,
1296: * postpone closing out the current block
1297: * until the rew_sub() call closing out the sub-block.
1298: */
1.107 schwarze 1299:
1.76 schwarze 1300: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1301: n = n->parent) {
1.106 schwarze 1302: if (n->type == MDOC_BLOCK &&
1303: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1304: ! (n->flags & MDOC_VALID)) {
1.76 schwarze 1305: make_pending(n, tok, mdoc, line, ppos);
1.106 schwarze 1306: mdoc_endbody_alloc(mdoc, line, ppos,
1307: tok, body, ENDBODY_NOSPACE);
1.107 schwarze 1308: return;
1.47 schwarze 1309: }
1310: }
1.91 schwarze 1311: assert(n == body);
1.106 schwarze 1312: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1313: if (nl)
1314: append_delims(mdoc, line, pos, buf);
1315: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.74 schwarze 1316:
1317: /* Move trailing .Ns out of scope. */
1318:
1319: for (n = body->child; n && n->next; n = n->next)
1320: /* Do nothing. */ ;
1.106 schwarze 1321: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1322: mdoc_node_relink(mdoc, n);
1.1 kristaps 1323: }
1324:
1.107 schwarze 1325: static void
1.1 kristaps 1326: blk_part_exp(MACRO_PROT_ARGS)
1327: {
1.37 schwarze 1328: int la, nl;
1.36 schwarze 1329: enum margserr ac;
1.32 schwarze 1330: struct mdoc_node *head; /* keep track of head */
1331: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1332: char *p;
1333:
1.76 schwarze 1334: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1335:
1.32 schwarze 1336: /*
1337: * The opening of an explicit macro having zero or more leading
1338: * punctuation nodes; a head with optional single element (the
1339: * case of `Eo'); and a body that may be empty.
1340: */
1.22 schwarze 1341:
1.106 schwarze 1342: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.32 schwarze 1343: for (head = body = NULL; ; ) {
1.22 schwarze 1344: la = *pos;
1.76 schwarze 1345: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1346: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1347: break;
1348:
1.32 schwarze 1349: /* Flush out leading punctuation. */
1350:
1.106 schwarze 1351: if (head == NULL && ac != ARGS_QWORD &&
1352: mdoc_isdelim(p) == DELIM_OPEN) {
1.32 schwarze 1353: assert(NULL == body);
1.106 schwarze 1354: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1355: continue;
1.80 schwarze 1356: }
1.32 schwarze 1357:
1.106 schwarze 1358: if (head == NULL) {
1359: assert(body == NULL);
1360: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1361: }
1362:
1.32 schwarze 1363: /*
1364: * `Eo' gobbles any data into the head, but most other
1365: * macros just immediately close out and begin the body.
1366: */
1367:
1.106 schwarze 1368: if (body == NULL) {
1.32 schwarze 1369: assert(head);
1370: /* No check whether it's a macro! */
1.106 schwarze 1371: if (tok == MDOC_Eo)
1372: dword(mdoc, line, la, p, DELIM_MAX, 0);
1373: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1374: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1375: if (tok == MDOC_Eo)
1.32 schwarze 1376: continue;
1377: }
1.106 schwarze 1378: assert(head != NULL && body != NULL);
1.32 schwarze 1379:
1.109 schwarze 1380: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1381: break;
1.1 kristaps 1382: }
1383:
1.32 schwarze 1384: /* Clean-up to leave in a consistent state. */
1385:
1.106 schwarze 1386: if (head == NULL)
1387: mdoc_head_alloc(mdoc, line, ppos, tok);
1.22 schwarze 1388:
1.106 schwarze 1389: if (body == NULL) {
1390: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1391: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1392: }
1.106 schwarze 1393: if (nl)
1394: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1395: }
1396:
1.107 schwarze 1397: static void
1.1 kristaps 1398: in_line_argn(MACRO_PROT_ARGS)
1399: {
1.37 schwarze 1400: int la, flushed, j, maxargs, nl;
1.36 schwarze 1401: enum margserr ac;
1402: struct mdoc_arg *arg;
1403: char *p;
1404: enum mdoct ntok;
1.1 kristaps 1405:
1.112 schwarze 1406: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1407:
1.32 schwarze 1408: /*
1409: * A line macro that has a fixed number of arguments (maxargs).
1410: * Only open the scope once the first non-leading-punctuation is
1411: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1412: * keep it open until the maximum number of arguments are
1413: * exhausted.
1414: */
1.1 kristaps 1415:
1416: switch (tok) {
1.88 schwarze 1417: case MDOC_Ap:
1.1 kristaps 1418: /* FALLTHROUGH */
1.88 schwarze 1419: case MDOC_Ns:
1.1 kristaps 1420: /* FALLTHROUGH */
1.88 schwarze 1421: case MDOC_Ux:
1.1 kristaps 1422: maxargs = 0;
1423: break;
1.88 schwarze 1424: case MDOC_Bx:
1.64 schwarze 1425: /* FALLTHROUGH */
1.89 schwarze 1426: case MDOC_Es:
1427: /* FALLTHROUGH */
1.88 schwarze 1428: case MDOC_Xr:
1.28 schwarze 1429: maxargs = 2;
1430: break;
1.1 kristaps 1431: default:
1432: maxargs = 1;
1433: break;
1434: }
1435:
1.108 schwarze 1436: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1437:
1.112 schwarze 1438: p = NULL;
1439: flushed = j = 0;
1440: for (;;) {
1.22 schwarze 1441: la = *pos;
1.76 schwarze 1442: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.112 schwarze 1443: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1444: if (j < 2 && tok == MDOC_Pf)
1445: mandoc_vmsg(MANDOCERR_PF_SKIP,
1446: mdoc->parse, line, ppos, "Pf %s",
1447: p == NULL ? "at eol" : p);
1.1 kristaps 1448: break;
1.112 schwarze 1449: }
1.1 kristaps 1450:
1.106 schwarze 1451: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1452: ac != ARGS_QWORD && j == 0 &&
1453: mdoc_isdelim(p) == DELIM_OPEN) {
1454: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1455: continue;
1.106 schwarze 1456: } else if (j == 0)
1457: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.32 schwarze 1458:
1459: if (j == maxargs && ! flushed) {
1.105 schwarze 1460: rew_elem(mdoc, tok);
1.32 schwarze 1461: flushed = 1;
1462: }
1463:
1.112 schwarze 1464: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1465: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1466:
1.106 schwarze 1467: if (ntok != MDOC_MAX) {
1.105 schwarze 1468: if ( ! flushed)
1469: rew_elem(mdoc, tok);
1.1 kristaps 1470: flushed = 1;
1.107 schwarze 1471: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.32 schwarze 1472: j++;
1.1 kristaps 1473: break;
1474: }
1475:
1.106 schwarze 1476: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1477: ac != ARGS_QWORD && ! flushed &&
1478: mdoc_isdelim(p) != DELIM_NONE) {
1.105 schwarze 1479: rew_elem(mdoc, tok);
1.1 kristaps 1480: flushed = 1;
1.28 schwarze 1481: }
1482:
1.106 schwarze 1483: dword(mdoc, line, la, p, DELIM_MAX,
1484: MDOC_JOIN & mdoc_macros[tok].flags);
1.32 schwarze 1485: j++;
1.1 kristaps 1486: }
1487:
1.112 schwarze 1488: if (j == 0) {
1.106 schwarze 1489: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.112 schwarze 1490: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1491: append_delims(mdoc, line, pos, buf);
1492: }
1.105 schwarze 1493: if ( ! flushed)
1494: rew_elem(mdoc, tok);
1.106 schwarze 1495: if (nl)
1496: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1497: }
1498:
1.107 schwarze 1499: static void
1.1 kristaps 1500: in_line_eoln(MACRO_PROT_ARGS)
1501: {
1.36 schwarze 1502: struct mdoc_arg *arg;
1.1 kristaps 1503:
1.53 schwarze 1504: if (tok == MDOC_Pp)
1.76 schwarze 1505: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.53 schwarze 1506:
1.108 schwarze 1507: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1508: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1509: if (parse_rest(mdoc, tok, line, pos, buf))
1510: return;
1511: rew_elem(mdoc, tok);
1512: }
1513:
1514: /*
1515: * The simplest argument parser available: Parse the remaining
1516: * words until the end of the phrase or line and return 0
1517: * or until the next macro, call that macro, and return 1.
1518: */
1519: static int
1520: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1521: {
1522: int la;
1.1 kristaps 1523:
1524: for (;;) {
1525: la = *pos;
1.109 schwarze 1526: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1527: return(0);
1.109 schwarze 1528: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1529: return(1);
1.1 kristaps 1530: }
1.28 schwarze 1531: }
1532:
1.107 schwarze 1533: static void
1.28 schwarze 1534: ctx_synopsis(MACRO_PROT_ARGS)
1535: {
1.37 schwarze 1536:
1.107 schwarze 1537: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1538: in_line(mdoc, tok, line, ppos, pos, buf);
1539: else if (tok == MDOC_Nm)
1540: blk_full(mdoc, tok, line, ppos, pos, buf);
1541: else {
1542: assert(tok == MDOC_Vt);
1543: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1544: }
1.1 kristaps 1545: }
1546:
1.17 schwarze 1547: /*
1548: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1549: * They're unusual because they're basically free-form text until a
1550: * macro is encountered.
1551: */
1.107 schwarze 1552: static void
1.46 schwarze 1553: phrase_ta(MACRO_PROT_ARGS)
1554: {
1.78 schwarze 1555: struct mdoc_node *n;
1.46 schwarze 1556:
1.78 schwarze 1557: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1558:
1.78 schwarze 1559: n = mdoc->last;
1.107 schwarze 1560: while (n != NULL && n->tok != MDOC_Bl)
1.78 schwarze 1561: n = n->parent;
1.107 schwarze 1562: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1563: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1564: line, ppos, "Ta");
1.107 schwarze 1565: return;
1.78 schwarze 1566: }
1.46 schwarze 1567:
1.78 schwarze 1568: /* Advance to the next column. */
1.106 schwarze 1569:
1570: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1571: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1572: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1573: }
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