Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.113
1.113 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.112 2014/11/30 05:28:00 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: /*
479: * If the *broken block had already been broken before
480: * and we encounter its breaker, make the tok block
481: * pending on the inner breaker.
482: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
483: * becomes "[A broken=[B [C->B B] tok=A] C]"
484: * and finally "[A [B->A [C->B B] A] C]".
485: */
486: if (breaker == broken->pending) {
487: broken = breaker;
488: continue;
489: }
490:
1.48 schwarze 491: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 492: continue;
493: if (MDOC_BODY == broken->type)
494: broken = broken->parent;
495:
496: /*
497: * Found the breaker.
498: * If another, outer breaker is already pending on
499: * the *broken block, we must not clobber the link
500: * to the outer breaker, but make it pending on the
501: * new, now inner breaker.
502: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
503: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
504: * and finally "[A [B->A [C->B A] B] C]".
505: */
506: if (broken->pending) {
507: struct mdoc_node *taker;
508:
509: /*
510: * If the breaker had also been broken before,
511: * it cannot take on the outer breaker itself,
512: * but must hand it on to its own breakers.
513: * Graphically, this is the following situation:
514: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
515: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
516: */
517: taker = breaker;
518: while (taker->pending)
519: taker = taker->pending;
520: taker->pending = broken->pending;
521: }
522: broken->pending = breaker;
1.94 schwarze 523: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.88 schwarze 524: "%s breaks %s", mdoc_macronames[tok],
525: mdoc_macronames[broken->tok]);
1.47 schwarze 526: return(1);
527: }
528:
529: /*
530: * Found no matching block for tok.
531: * Are you trying to close a block that is not open?
532: */
533: return(0);
534: }
535:
1.106 schwarze 536: static void
1.88 schwarze 537: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.34 schwarze 538: enum mdoct tok, int line, int ppos)
1.1 kristaps 539: {
540: struct mdoc_node *n;
541:
1.76 schwarze 542: n = mdoc->last;
1.48 schwarze 543: while (n) {
544: switch (rew_dohalt(tok, t, n)) {
1.88 schwarze 545: case REWIND_NONE:
1.106 schwarze 546: return;
1.88 schwarze 547: case REWIND_THIS:
1.81 schwarze 548: n->lastline = line -
1.106 schwarze 549: (mdoc->flags & MDOC_NEWLINE &&
550: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.48 schwarze 551: break;
1.88 schwarze 552: case REWIND_FORCE:
1.94 schwarze 553: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.88 schwarze 554: line, ppos, "%s breaks %s",
555: mdoc_macronames[tok],
556: mdoc_macronames[n->tok]);
1.59 schwarze 557: /* FALLTHROUGH */
1.88 schwarze 558: case REWIND_MORE:
1.81 schwarze 559: n->lastline = line -
1.106 schwarze 560: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.48 schwarze 561: n = n->parent;
562: continue;
1.88 schwarze 563: case REWIND_LATER:
1.76 schwarze 564: if (make_pending(n, tok, mdoc, line, ppos) ||
1.106 schwarze 565: t != MDOC_BLOCK)
566: return;
1.59 schwarze 567: /* FALLTHROUGH */
1.88 schwarze 568: case REWIND_ERROR:
1.94 schwarze 569: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
570: mdoc->parse, line, ppos,
571: mdoc_macronames[tok]);
1.106 schwarze 572: return;
1.22 schwarze 573: }
1.48 schwarze 574: break;
1.1 kristaps 575: }
576: assert(n);
1.105 schwarze 577: rew_last(mdoc, n);
1.29 schwarze 578:
579: /*
1.47 schwarze 580: * The current block extends an enclosing block.
581: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 582: */
1.106 schwarze 583: while ((n = n->pending) != NULL) {
1.105 schwarze 584: rew_last(mdoc, n);
1.106 schwarze 585: if (n->type == MDOC_HEAD)
586: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
1.29 schwarze 587: }
1.1 kristaps 588: }
589:
1.66 schwarze 590: /*
591: * Allocate a word and check whether it's punctuation or not.
592: * Punctuation consists of those tokens found in mdoc_isdelim().
593: */
1.106 schwarze 594: static void
1.80 schwarze 595: dword(struct mdoc *mdoc, int line, int col, const char *p,
596: enum mdelim d, int may_append)
1.66 schwarze 597: {
1.88 schwarze 598:
1.106 schwarze 599: if (d == DELIM_MAX)
1.66 schwarze 600: d = mdoc_isdelim(p);
601:
1.80 schwarze 602: if (may_append &&
1.106 schwarze 603: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
604: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
605: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 606: mdoc_word_append(mdoc, p);
1.106 schwarze 607: return;
1.80 schwarze 608: }
609:
1.106 schwarze 610: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 611:
1.71 schwarze 612: /*
1.100 schwarze 613: * If the word consists of a bare delimiter,
614: * flag the new node accordingly,
615: * unless doing so was vetoed by the invoking macro.
616: * Always clear the veto, it is only valid for one word.
1.71 schwarze 617: */
618:
1.100 schwarze 619: if (d == DELIM_OPEN)
620: mdoc->last->flags |= MDOC_DELIMO;
621: else if (d == DELIM_CLOSE &&
622: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 623: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 624: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 625: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 626: }
1.1 kristaps 627:
1.106 schwarze 628: static void
1.76 schwarze 629: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 630: {
1.109 schwarze 631: char *p;
1.42 schwarze 632: int la;
1.1 kristaps 633:
1.106 schwarze 634: if (buf[*pos] == '\0')
635: return;
1.1 kristaps 636:
637: for (;;) {
1.42 schwarze 638: la = *pos;
1.109 schwarze 639: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 640: break;
1.80 schwarze 641: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 642:
1.42 schwarze 643: /*
644: * If we encounter end-of-sentence symbols, then trigger
645: * the double-space.
646: *
1.68 schwarze 647: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 648: * the last symbol, such that `. )' will cause the
649: * correct double-spacing. However, (1) groff isn't
650: * smart enough to do this and (2) it would require
651: * knowing which symbols break this behaviour, for
1.68 schwarze 652: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 653: */
1.106 schwarze 654:
1.84 schwarze 655: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 656: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 657: }
658: }
659:
660: /*
1.109 schwarze 661: * Parse one word.
662: * If it is a macro, call it and return 1.
663: * Otherwise, allocate it and return 0.
664: */
665: static int
666: macro_or_word(MACRO_PROT_ARGS, int parsed)
667: {
668: char *p;
669: enum mdoct ntok;
670:
671: p = buf + ppos;
672: ntok = MDOC_MAX;
1.113 ! schwarze 673: if (*p == '"')
1.109 schwarze 674: p++;
1.113 ! schwarze 675: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 676: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 677:
678: if (ntok == MDOC_MAX) {
679: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
680: mdoc_macros[tok].flags & MDOC_JOIN);
681: return(0);
682: } else {
683: if (mdoc_macros[tok].fp == in_line_eoln)
684: rew_elem(mdoc, tok);
685: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
686: if (tok == MDOC_MAX)
687: append_delims(mdoc, line, pos, buf);
688: return(1);
689: }
690: }
691:
692: /*
1.88 schwarze 693: * Close out block partial/full explicit.
1.1 kristaps 694: */
1.107 schwarze 695: static void
1.1 kristaps 696: blk_exp_close(MACRO_PROT_ARGS)
697: {
1.47 schwarze 698: struct mdoc_node *body; /* Our own body. */
1.104 schwarze 699: struct mdoc_node *endbody; /* Our own end marker. */
1.47 schwarze 700: struct mdoc_node *later; /* A sub-block starting later. */
701: struct mdoc_node *n; /* For searching backwards. */
702:
1.88 schwarze 703: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 704: enum margserr ac;
1.47 schwarze 705: enum mdoct atok, ntok;
1.1 kristaps 706: char *p;
707:
1.76 schwarze 708: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 709:
1.1 kristaps 710: switch (tok) {
1.88 schwarze 711: case MDOC_Ec:
1.1 kristaps 712: maxargs = 1;
713: break;
1.88 schwarze 714: case MDOC_Ek:
1.82 schwarze 715: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 716: /* FALLTHROUGH */
1.1 kristaps 717: default:
718: maxargs = 0;
719: break;
720: }
721:
1.47 schwarze 722: /*
723: * Search backwards for beginnings of blocks,
724: * both of our own and of pending sub-blocks.
725: */
1.107 schwarze 726:
1.47 schwarze 727: atok = rew_alt(tok);
1.104 schwarze 728: body = endbody = later = NULL;
1.76 schwarze 729: for (n = mdoc->last; n; n = n->parent) {
1.106 schwarze 730: if (n->flags & MDOC_VALID)
1.47 schwarze 731: continue;
732:
733: /* Remember the start of our own body. */
1.107 schwarze 734:
1.106 schwarze 735: if (n->type == MDOC_BODY && atok == n->tok) {
736: if (n->end == ENDBODY_NOT)
1.47 schwarze 737: body = n;
738: continue;
739: }
740:
1.106 schwarze 741: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 742: continue;
743: if (atok == n->tok) {
744: assert(body);
745:
746: /*
747: * Found the start of our own block.
748: * When there is no pending sub block,
749: * just proceed to closing out.
750: */
1.107 schwarze 751:
1.106 schwarze 752: if (later == NULL)
1.47 schwarze 753: break;
754:
1.88 schwarze 755: /*
1.47 schwarze 756: * When there is a pending sub block,
757: * postpone closing out the current block
758: * until the rew_sub() closing out the sub-block.
759: */
1.107 schwarze 760:
1.76 schwarze 761: make_pending(later, tok, mdoc, line, ppos);
1.47 schwarze 762:
763: /*
764: * Mark the place where the formatting - but not
765: * the scope - of the current block ends.
766: */
1.107 schwarze 767:
1.106 schwarze 768: mdoc_endbody_alloc(mdoc, line, ppos,
769: atok, body, ENDBODY_SPACE);
1.107 schwarze 770:
771: /*
772: * If a block closing macro taking arguments
773: * breaks another block, put the arguments
774: * into the end marker and remeber the
775: * end marker in order to close it out.
776: */
777:
1.104 schwarze 778: if (maxargs) {
779: endbody = mdoc->last;
780: mdoc->next = MDOC_NEXT_CHILD;
781: }
1.47 schwarze 782: break;
783: }
784:
785: /*
786: * When finding an open sub block, remember the last
787: * open explicit block, or, in case there are only
788: * implicit ones, the first open implicit block.
789: */
1.107 schwarze 790:
1.47 schwarze 791: if (later &&
1.106 schwarze 792: mdoc_macros[later->tok].flags & MDOC_EXPLICIT)
1.47 schwarze 793: continue;
1.106 schwarze 794: if (n->tok != MDOC_It)
1.47 schwarze 795: later = n;
796: }
1.107 schwarze 797: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1.47 schwarze 798:
1.106 schwarze 799: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
800: if (buf[*pos] != '\0')
1.93 schwarze 801: mandoc_vmsg(MANDOCERR_ARG_SKIP,
802: mdoc->parse, line, ppos,
803: "%s %s", mdoc_macronames[tok],
804: buf + *pos);
1.106 schwarze 805: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.107 schwarze 806: return;
1.1 kristaps 807: }
808:
1.104 schwarze 809: if (maxargs && endbody == NULL) {
810: if (n == NULL) {
811: /*
812: * Stray .Ec without previous .Eo:
813: * Break the output line, ignore any arguments.
814: */
1.106 schwarze 815: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 816: rew_elem(mdoc, MDOC_br);
1.106 schwarze 817: } else
818: mdoc_tail_alloc(mdoc, line, ppos, atok);
1.104 schwarze 819: }
1.1 kristaps 820:
1.104 schwarze 821: flushed = n == NULL;
822: for (j = 0; ; j++) {
1.1 kristaps 823: lastarg = *pos;
824:
825: if (j == maxargs && ! flushed) {
1.106 schwarze 826: if (endbody == NULL)
827: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
828: else
1.105 schwarze 829: rew_last(mdoc, endbody);
1.1 kristaps 830: flushed = 1;
831: }
832:
1.76 schwarze 833: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 834: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 835: break;
836:
1.111 schwarze 837: ntok = ac == ARGS_QWORD ? MDOC_MAX :
838: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 839:
1.106 schwarze 840: if (ntok == MDOC_MAX) {
841: dword(mdoc, line, lastarg, p, DELIM_MAX,
842: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 843: continue;
844: }
1.1 kristaps 845:
1.36 schwarze 846: if ( ! flushed) {
1.106 schwarze 847: if (endbody == NULL)
848: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
849: else
1.105 schwarze 850: rew_last(mdoc, endbody);
1.36 schwarze 851: flushed = 1;
852: }
1.79 schwarze 853: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 854: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 855: break;
1.1 kristaps 856: }
857:
1.105 schwarze 858: if ( ! flushed) {
1.106 schwarze 859: if (endbody == NULL)
860: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
861: else
1.105 schwarze 862: rew_last(mdoc, endbody);
863: }
1.106 schwarze 864: if (nl)
865: append_delims(mdoc, line, pos, buf);
1.1 kristaps 866: }
867:
1.107 schwarze 868: static void
1.1 kristaps 869: in_line(MACRO_PROT_ARGS)
870: {
1.100 schwarze 871: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.36 schwarze 872: enum mdoct ntok;
873: enum margserr ac;
1.40 schwarze 874: enum mdelim d;
1.36 schwarze 875: struct mdoc_arg *arg;
876: char *p;
1.1 kristaps 877:
1.76 schwarze 878: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 879:
1.1 kristaps 880: /*
881: * Whether we allow ignored elements (those without content,
882: * usually because of reserved words) to squeak by.
883: */
1.32 schwarze 884:
1.1 kristaps 885: switch (tok) {
1.88 schwarze 886: case MDOC_An:
1.19 schwarze 887: /* FALLTHROUGH */
1.88 schwarze 888: case MDOC_Ar:
1.1 kristaps 889: /* FALLTHROUGH */
1.88 schwarze 890: case MDOC_Fl:
1.1 kristaps 891: /* FALLTHROUGH */
1.88 schwarze 892: case MDOC_Mt:
1.18 schwarze 893: /* FALLTHROUGH */
1.88 schwarze 894: case MDOC_Nm:
1.19 schwarze 895: /* FALLTHROUGH */
1.88 schwarze 896: case MDOC_Pa:
1.1 kristaps 897: nc = 1;
898: break;
899: default:
900: nc = 0;
901: break;
902: }
903:
1.108 schwarze 904: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 905:
1.100 schwarze 906: d = DELIM_NONE;
907: firstarg = 1;
1.98 schwarze 908: mayopen = 1;
1.45 schwarze 909: for (cnt = scope = 0;; ) {
1.1 kristaps 910: la = *pos;
1.76 schwarze 911: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 912:
1.100 schwarze 913: /*
914: * At the end of a macro line,
915: * opening delimiters do not suppress spacing.
916: */
917:
918: if (ac == ARGS_EOLN) {
919: if (d == DELIM_OPEN)
920: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 921: break;
1.100 schwarze 922: }
923:
924: /*
925: * The rest of the macro line is only punctuation,
926: * to be handled by append_delims().
927: * If there were no other arguments,
928: * do not allow the first one to suppress spacing,
929: * even if it turns out to be a closing one.
930: */
931:
932: if (ac == ARGS_PUNCT) {
933: if (cnt == 0 && nc == 0)
934: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 935: break;
1.100 schwarze 936: }
1.1 kristaps 937:
1.101 schwarze 938: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 939: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 940:
1.88 schwarze 941: /*
1.1 kristaps 942: * In this case, we've located a submacro and must
943: * execute it. Close out scope, if open. If no
944: * elements have been generated, either create one (nc)
945: * or raise a warning.
946: */
947:
1.106 schwarze 948: if (ntok != MDOC_MAX) {
1.105 schwarze 949: if (scope)
950: rew_elem(mdoc, tok);
1.106 schwarze 951: if (nc && ! cnt) {
952: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 953: rew_last(mdoc, mdoc->last);
1.106 schwarze 954: } else if ( ! nc && ! cnt) {
1.1 kristaps 955: mdoc_argv_free(arg);
1.92 schwarze 956: mandoc_msg(MANDOCERR_MACRO_EMPTY,
957: mdoc->parse, line, ppos,
958: mdoc_macronames[tok]);
1.1 kristaps 959: }
1.107 schwarze 960: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 961: if (nl)
962: append_delims(mdoc, line, pos, buf);
1.107 schwarze 963: return;
1.88 schwarze 964: }
1.1 kristaps 965:
1.88 schwarze 966: /*
1.1 kristaps 967: * Non-quote-enclosed punctuation. Set up our scope, if
968: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 969: * the word.
1.1 kristaps 970: */
971:
1.106 schwarze 972: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 973:
1.45 schwarze 974: if (DELIM_NONE != d) {
975: /*
976: * If we encounter closing punctuation, no word
1.100 schwarze 977: * has been emitted, no scope is open, and we're
1.45 schwarze 978: * allowed to have an empty element, then start
1.98 schwarze 979: * a new scope.
1.45 schwarze 980: */
1.98 schwarze 981: if ((d == DELIM_CLOSE ||
982: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 983: !cnt && !scope && nc && mayopen) {
1.106 schwarze 984: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 985: scope = 1;
1.98 schwarze 986: cnt++;
1.106 schwarze 987: if (tok == MDOC_Nm)
1.98 schwarze 988: mayopen = 0;
1.45 schwarze 989: }
990: /*
991: * Close out our scope, if one is open, before
992: * any punctuation.
993: */
1.105 schwarze 994: if (scope)
995: rew_elem(mdoc, tok);
1.45 schwarze 996: scope = 0;
1.101 schwarze 997: if (tok == MDOC_Fn)
998: mayopen = 0;
1.98 schwarze 999: } else if (mayopen && !scope) {
1.106 schwarze 1000: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 1001: scope = 1;
1.98 schwarze 1002: cnt++;
1.1 kristaps 1003: }
1.66 schwarze 1004:
1.106 schwarze 1005: dword(mdoc, line, la, p, d,
1006: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 1007:
1008: /*
1.100 schwarze 1009: * If the first argument is a closing delimiter,
1010: * do not suppress spacing before it.
1011: */
1012:
1013: if (firstarg && d == DELIM_CLOSE && !nc)
1014: mdoc->last->flags &= ~MDOC_DELIMC;
1015: firstarg = 0;
1016:
1017: /*
1.27 schwarze 1018: * `Fl' macros have their scope re-opened with each new
1019: * word so that the `-' can be added to each one without
1020: * having to parse out spaces.
1021: */
1.106 schwarze 1022: if (scope && tok == MDOC_Fl) {
1.105 schwarze 1023: rew_elem(mdoc, tok);
1.45 schwarze 1024: scope = 0;
1.27 schwarze 1025: }
1.1 kristaps 1026: }
1027:
1.105 schwarze 1028: if (scope)
1029: rew_elem(mdoc, tok);
1.1 kristaps 1030:
1031: /*
1032: * If no elements have been collected and we're allowed to have
1033: * empties (nc), open a scope and close it out. Otherwise,
1034: * raise a warning.
1035: */
1.32 schwarze 1036:
1.106 schwarze 1037: if ( ! cnt) {
1038: if (nc) {
1039: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1040: rew_last(mdoc, mdoc->last);
1041: } else {
1042: mdoc_argv_free(arg);
1043: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1044: line, ppos, mdoc_macronames[tok]);
1045: }
1.1 kristaps 1046: }
1.106 schwarze 1047: if (nl)
1048: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1049: }
1050:
1.107 schwarze 1051: static void
1.1 kristaps 1052: blk_full(MACRO_PROT_ARGS)
1053: {
1.109 schwarze 1054: int la, nl, parsed;
1.1 kristaps 1055: struct mdoc_arg *arg;
1.32 schwarze 1056: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 1057: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 1058: struct mdoc_node *n;
1.37 schwarze 1059: enum margserr ac, lac;
1.1 kristaps 1060: char *p;
1061:
1.76 schwarze 1062: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 1063:
1064: /* Skip items outside lists. */
1065:
1066: if (tok == MDOC_It) {
1067: for (n = mdoc->last; n; n = n->parent)
1.97 schwarze 1068: if (n->tok == MDOC_Bl &&
1069: ! (n->flags & MDOC_VALID))
1.95 schwarze 1070: break;
1071: if (n == NULL) {
1072: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1073: line, ppos, "It %s", buf + *pos);
1.106 schwarze 1074: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 1075: rew_elem(mdoc, MDOC_br);
1.107 schwarze 1076: return;
1.95 schwarze 1077: }
1078: }
1.43 schwarze 1079:
1.32 schwarze 1080: /* Close out prior implicit scope. */
1.12 schwarze 1081:
1.106 schwarze 1082: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1083: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1084: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1085: }
1086:
1.32 schwarze 1087: /*
1.68 schwarze 1088: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1089: * macro openings. Implicit ones first close out prior scope
1090: * (seen above). Delay opening the head until necessary to
1091: * allow leading punctuation to print. Special consideration
1092: * for `It -column', which has phrase-part syntax instead of
1093: * regular child nodes.
1094: */
1095:
1.108 schwarze 1096: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1097: mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1098: head = body = NULL;
1.1 kristaps 1099:
1.32 schwarze 1100: /*
1.73 schwarze 1101: * Exception: Heads of `It' macros in `-diag' lists are not
1102: * parsed, even though `It' macros in general are parsed.
1103: */
1.107 schwarze 1104:
1.109 schwarze 1105: parsed = tok != MDOC_It ||
1106: mdoc->last->parent->tok != MDOC_Bl ||
1107: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1108:
1109: /*
1.32 schwarze 1110: * The `Nd' macro has all arguments in its body: it's a hybrid
1111: * of block partial-explicit and full-implicit. Stupid.
1112: */
1.12 schwarze 1113:
1.106 schwarze 1114: if (tok == MDOC_Nd) {
1115: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1116: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1117: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1118: }
1119:
1.106 schwarze 1120: if (tok == MDOC_Bk)
1.80 schwarze 1121: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1122:
1.106 schwarze 1123: ac = ARGS_PEND;
1124: for (;;) {
1.32 schwarze 1125: la = *pos;
1.106 schwarze 1126: lac = ac;
1.76 schwarze 1127: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1128: if (ac == ARGS_PUNCT)
1.52 schwarze 1129: break;
1.106 schwarze 1130: if (ac == ARGS_EOLN) {
1131: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1132: break;
1133: /*
1134: * This is necessary: if the last token on a
1135: * line is a `Ta' or tab, then we'll get
1136: * ARGS_EOLN, so we must be smart enough to
1137: * reopen our scope if the last parse was a
1138: * phrase or partial phrase.
1139: */
1.106 schwarze 1140: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1141: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1142: break;
1.41 schwarze 1143: }
1144:
1.88 schwarze 1145: /*
1.46 schwarze 1146: * Emit leading punctuation (i.e., punctuation before
1147: * the MDOC_HEAD) for non-phrase types.
1148: */
1.32 schwarze 1149:
1.106 schwarze 1150: if (head == NULL &&
1151: ac != ARGS_PEND &&
1152: ac != ARGS_PHRASE &&
1153: ac != ARGS_PPHRASE &&
1154: ac != ARGS_QWORD &&
1155: mdoc_isdelim(p) == DELIM_OPEN) {
1156: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1157: continue;
1158: }
1159:
1.46 schwarze 1160: /* Open a head if one hasn't been opened. */
1.32 schwarze 1161:
1.106 schwarze 1162: if (head == NULL)
1163: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1164:
1.106 schwarze 1165: if (ac == ARGS_PHRASE ||
1166: ac == ARGS_PEND ||
1167: ac == ARGS_PPHRASE) {
1.107 schwarze 1168:
1.46 schwarze 1169: /*
1170: * If we haven't opened a body yet, rewind the
1171: * head; if we have, rewind that instead.
1172: */
1173:
1.106 schwarze 1174: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1175: mdoc, tok, line, ppos);
1176: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1177:
1178: /*
1179: * Process phrases: set whether we're in a
1180: * partial-phrase (this effects line handling)
1181: * then call down into the phrase parser.
1182: */
1183:
1.106 schwarze 1184: if (ac == ARGS_PPHRASE)
1.76 schwarze 1185: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1186: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1187: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1188: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1189: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1190: continue;
1191: }
1192:
1.109 schwarze 1193: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1194: break;
1.32 schwarze 1195: }
1.1 kristaps 1196:
1.106 schwarze 1197: if (head == NULL)
1198: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1199: if (nl)
1200: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1201: if (body != NULL)
1.46 schwarze 1202: goto out;
1.29 schwarze 1203:
1204: /*
1.34 schwarze 1205: * If there is an open (i.e., unvalidated) sub-block requiring
1206: * explicit close-out, postpone switching the current block from
1207: * head to body until the rew_sub() call closing out that
1208: * sub-block.
1.29 schwarze 1209: */
1.76 schwarze 1210: for (n = mdoc->last; n && n != head; n = n->parent) {
1.107 schwarze 1211: if (n->type == MDOC_BLOCK &&
1212: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1213: ! (n->flags & MDOC_VALID)) {
1.29 schwarze 1214: n->pending = head;
1.107 schwarze 1215: return;
1.29 schwarze 1216: }
1217: }
1.54 schwarze 1218:
1.32 schwarze 1219: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1220:
1.106 schwarze 1221: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1222: mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1223: out:
1.106 schwarze 1224: if (mdoc->flags & MDOC_FREECOL) {
1225: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1226: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1227: mdoc->flags &= ~MDOC_FREECOL;
1228: }
1.1 kristaps 1229: }
1230:
1.107 schwarze 1231: static void
1.1 kristaps 1232: blk_part_imp(MACRO_PROT_ARGS)
1233: {
1.43 schwarze 1234: int la, nl;
1.36 schwarze 1235: enum margserr ac;
1.1 kristaps 1236: char *p;
1.32 schwarze 1237: struct mdoc_node *blk; /* saved block context */
1238: struct mdoc_node *body; /* saved body context */
1239: struct mdoc_node *n;
1.1 kristaps 1240:
1.76 schwarze 1241: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1242:
1.32 schwarze 1243: /*
1244: * A macro that spans to the end of the line. This is generally
1245: * (but not necessarily) called as the first macro. The block
1246: * has a head as the immediate child, which is always empty,
1247: * followed by zero or more opening punctuation nodes, then the
1248: * body (which may be empty, depending on the macro), then zero
1249: * or more closing punctuation nodes.
1250: */
1.22 schwarze 1251:
1.106 schwarze 1252: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1253: mdoc_head_alloc(mdoc, line, ppos, tok);
1254: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1.1 kristaps 1255:
1.32 schwarze 1256: /*
1257: * Open the body scope "on-demand", that is, after we've
1258: * processed all our the leading delimiters (open parenthesis,
1259: * etc.).
1260: */
1.1 kristaps 1261:
1.32 schwarze 1262: for (body = NULL; ; ) {
1.22 schwarze 1263: la = *pos;
1.76 schwarze 1264: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1265: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1266: break;
1267:
1.106 schwarze 1268: if (body == NULL && ac != ARGS_QWORD &&
1269: mdoc_isdelim(p) == DELIM_OPEN) {
1270: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1271: continue;
1.80 schwarze 1272: }
1.1 kristaps 1273:
1.106 schwarze 1274: if (body == NULL)
1275: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1276:
1.109 schwarze 1277: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1278: break;
1.32 schwarze 1279: }
1.106 schwarze 1280: if (body == NULL)
1281: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1282:
1.47 schwarze 1283: /*
1284: * If there is an open sub-block requiring explicit close-out,
1285: * postpone closing out the current block
1286: * until the rew_sub() call closing out the sub-block.
1287: */
1.107 schwarze 1288:
1.76 schwarze 1289: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1290: n = n->parent) {
1.106 schwarze 1291: if (n->type == MDOC_BLOCK &&
1292: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1293: ! (n->flags & MDOC_VALID)) {
1.76 schwarze 1294: make_pending(n, tok, mdoc, line, ppos);
1.106 schwarze 1295: mdoc_endbody_alloc(mdoc, line, ppos,
1296: tok, body, ENDBODY_NOSPACE);
1.107 schwarze 1297: return;
1.47 schwarze 1298: }
1299: }
1.91 schwarze 1300: assert(n == body);
1.106 schwarze 1301: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1302: if (nl)
1303: append_delims(mdoc, line, pos, buf);
1304: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.74 schwarze 1305:
1306: /* Move trailing .Ns out of scope. */
1307:
1308: for (n = body->child; n && n->next; n = n->next)
1309: /* Do nothing. */ ;
1.106 schwarze 1310: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1311: mdoc_node_relink(mdoc, n);
1.1 kristaps 1312: }
1313:
1.107 schwarze 1314: static void
1.1 kristaps 1315: blk_part_exp(MACRO_PROT_ARGS)
1316: {
1.37 schwarze 1317: int la, nl;
1.36 schwarze 1318: enum margserr ac;
1.32 schwarze 1319: struct mdoc_node *head; /* keep track of head */
1320: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1321: char *p;
1322:
1.76 schwarze 1323: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1324:
1.32 schwarze 1325: /*
1326: * The opening of an explicit macro having zero or more leading
1327: * punctuation nodes; a head with optional single element (the
1328: * case of `Eo'); and a body that may be empty.
1329: */
1.22 schwarze 1330:
1.106 schwarze 1331: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.32 schwarze 1332: for (head = body = NULL; ; ) {
1.22 schwarze 1333: la = *pos;
1.76 schwarze 1334: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1335: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1336: break;
1337:
1.32 schwarze 1338: /* Flush out leading punctuation. */
1339:
1.106 schwarze 1340: if (head == NULL && ac != ARGS_QWORD &&
1341: mdoc_isdelim(p) == DELIM_OPEN) {
1.32 schwarze 1342: assert(NULL == body);
1.106 schwarze 1343: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1344: continue;
1.80 schwarze 1345: }
1.32 schwarze 1346:
1.106 schwarze 1347: if (head == NULL) {
1348: assert(body == NULL);
1349: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1350: }
1351:
1.32 schwarze 1352: /*
1353: * `Eo' gobbles any data into the head, but most other
1354: * macros just immediately close out and begin the body.
1355: */
1356:
1.106 schwarze 1357: if (body == NULL) {
1.32 schwarze 1358: assert(head);
1359: /* No check whether it's a macro! */
1.106 schwarze 1360: if (tok == MDOC_Eo)
1361: dword(mdoc, line, la, p, DELIM_MAX, 0);
1362: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1363: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1364: if (tok == MDOC_Eo)
1.32 schwarze 1365: continue;
1366: }
1.106 schwarze 1367: assert(head != NULL && body != NULL);
1.32 schwarze 1368:
1.109 schwarze 1369: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1370: break;
1.1 kristaps 1371: }
1372:
1.32 schwarze 1373: /* Clean-up to leave in a consistent state. */
1374:
1.106 schwarze 1375: if (head == NULL)
1376: mdoc_head_alloc(mdoc, line, ppos, tok);
1.22 schwarze 1377:
1.106 schwarze 1378: if (body == NULL) {
1379: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1380: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1381: }
1.106 schwarze 1382: if (nl)
1383: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1384: }
1385:
1.107 schwarze 1386: static void
1.1 kristaps 1387: in_line_argn(MACRO_PROT_ARGS)
1388: {
1.37 schwarze 1389: int la, flushed, j, maxargs, nl;
1.36 schwarze 1390: enum margserr ac;
1391: struct mdoc_arg *arg;
1392: char *p;
1393: enum mdoct ntok;
1.1 kristaps 1394:
1.112 schwarze 1395: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1396:
1.32 schwarze 1397: /*
1398: * A line macro that has a fixed number of arguments (maxargs).
1399: * Only open the scope once the first non-leading-punctuation is
1400: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1401: * keep it open until the maximum number of arguments are
1402: * exhausted.
1403: */
1.1 kristaps 1404:
1405: switch (tok) {
1.88 schwarze 1406: case MDOC_Ap:
1.1 kristaps 1407: /* FALLTHROUGH */
1.88 schwarze 1408: case MDOC_Ns:
1.1 kristaps 1409: /* FALLTHROUGH */
1.88 schwarze 1410: case MDOC_Ux:
1.1 kristaps 1411: maxargs = 0;
1412: break;
1.88 schwarze 1413: case MDOC_Bx:
1.64 schwarze 1414: /* FALLTHROUGH */
1.89 schwarze 1415: case MDOC_Es:
1416: /* FALLTHROUGH */
1.88 schwarze 1417: case MDOC_Xr:
1.28 schwarze 1418: maxargs = 2;
1419: break;
1.1 kristaps 1420: default:
1421: maxargs = 1;
1422: break;
1423: }
1424:
1.108 schwarze 1425: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1426:
1.112 schwarze 1427: p = NULL;
1428: flushed = j = 0;
1429: for (;;) {
1.22 schwarze 1430: la = *pos;
1.76 schwarze 1431: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.112 schwarze 1432: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1433: if (j < 2 && tok == MDOC_Pf)
1434: mandoc_vmsg(MANDOCERR_PF_SKIP,
1435: mdoc->parse, line, ppos, "Pf %s",
1436: p == NULL ? "at eol" : p);
1.1 kristaps 1437: break;
1.112 schwarze 1438: }
1.1 kristaps 1439:
1.106 schwarze 1440: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1441: ac != ARGS_QWORD && j == 0 &&
1442: mdoc_isdelim(p) == DELIM_OPEN) {
1443: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1444: continue;
1.106 schwarze 1445: } else if (j == 0)
1446: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.32 schwarze 1447:
1448: if (j == maxargs && ! flushed) {
1.105 schwarze 1449: rew_elem(mdoc, tok);
1.32 schwarze 1450: flushed = 1;
1451: }
1452:
1.112 schwarze 1453: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1454: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1455:
1.106 schwarze 1456: if (ntok != MDOC_MAX) {
1.105 schwarze 1457: if ( ! flushed)
1458: rew_elem(mdoc, tok);
1.1 kristaps 1459: flushed = 1;
1.107 schwarze 1460: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.32 schwarze 1461: j++;
1.1 kristaps 1462: break;
1463: }
1464:
1.106 schwarze 1465: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1466: ac != ARGS_QWORD && ! flushed &&
1467: mdoc_isdelim(p) != DELIM_NONE) {
1.105 schwarze 1468: rew_elem(mdoc, tok);
1.1 kristaps 1469: flushed = 1;
1.28 schwarze 1470: }
1471:
1.106 schwarze 1472: dword(mdoc, line, la, p, DELIM_MAX,
1473: MDOC_JOIN & mdoc_macros[tok].flags);
1.32 schwarze 1474: j++;
1.1 kristaps 1475: }
1476:
1.112 schwarze 1477: if (j == 0) {
1.106 schwarze 1478: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.112 schwarze 1479: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1480: append_delims(mdoc, line, pos, buf);
1481: }
1.105 schwarze 1482: if ( ! flushed)
1483: rew_elem(mdoc, tok);
1.106 schwarze 1484: if (nl)
1485: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1486: }
1487:
1.107 schwarze 1488: static void
1.1 kristaps 1489: in_line_eoln(MACRO_PROT_ARGS)
1490: {
1.36 schwarze 1491: struct mdoc_arg *arg;
1.1 kristaps 1492:
1.53 schwarze 1493: if (tok == MDOC_Pp)
1.76 schwarze 1494: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.53 schwarze 1495:
1.108 schwarze 1496: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1497: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1498: if (parse_rest(mdoc, tok, line, pos, buf))
1499: return;
1500: rew_elem(mdoc, tok);
1501: }
1502:
1503: /*
1504: * The simplest argument parser available: Parse the remaining
1505: * words until the end of the phrase or line and return 0
1506: * or until the next macro, call that macro, and return 1.
1507: */
1508: static int
1509: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1510: {
1511: int la;
1.1 kristaps 1512:
1513: for (;;) {
1514: la = *pos;
1.109 schwarze 1515: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1516: return(0);
1.109 schwarze 1517: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1518: return(1);
1.1 kristaps 1519: }
1.28 schwarze 1520: }
1521:
1.107 schwarze 1522: static void
1.28 schwarze 1523: ctx_synopsis(MACRO_PROT_ARGS)
1524: {
1.37 schwarze 1525:
1.107 schwarze 1526: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1527: in_line(mdoc, tok, line, ppos, pos, buf);
1528: else if (tok == MDOC_Nm)
1529: blk_full(mdoc, tok, line, ppos, pos, buf);
1530: else {
1531: assert(tok == MDOC_Vt);
1532: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1533: }
1.1 kristaps 1534: }
1535:
1.17 schwarze 1536: /*
1537: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1538: * They're unusual because they're basically free-form text until a
1539: * macro is encountered.
1540: */
1.107 schwarze 1541: static void
1.46 schwarze 1542: phrase_ta(MACRO_PROT_ARGS)
1543: {
1.78 schwarze 1544: struct mdoc_node *n;
1.46 schwarze 1545:
1.78 schwarze 1546: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1547:
1.78 schwarze 1548: n = mdoc->last;
1.107 schwarze 1549: while (n != NULL && n->tok != MDOC_Bl)
1.78 schwarze 1550: n = n->parent;
1.107 schwarze 1551: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1552: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1553: line, ppos, "Ta");
1.107 schwarze 1554: return;
1.78 schwarze 1555: }
1.46 schwarze 1556:
1.78 schwarze 1557: /* Advance to the next column. */
1.106 schwarze 1558:
1559: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1560: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1561: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1562: }
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