Annotation of mandoc/mdoc_macro.c, Revision 1.168
1.168 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.167 2015/02/02 15:02:49 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 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: *
1.8 kristaps 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: */
1.40 kristaps 18: #include "config.h"
1.140 schwarze 19:
20: #include <sys/types.h>
1.40 kristaps 21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.106 kristaps 29: #include "mdoc.h"
1.68 kristaps 30: #include "mandoc.h"
1.1 kristaps 31: #include "libmdoc.h"
1.64 kristaps 32: #include "libmandoc.h"
1.1 kristaps 33:
1.84 schwarze 34: enum rew { /* see rew_dohalt() */
35: REWIND_NONE,
36: REWIND_THIS,
37: REWIND_MORE,
1.167 schwarze 38: REWIND_FORCE
1.51 kristaps 39: };
1.1 kristaps 40:
1.151 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);
1.53 kristaps 50:
1.150 schwarze 51: static void dword(struct mdoc *, int, int, const char *,
1.123 schwarze 52: enum mdelim, int);
1.150 schwarze 53: static void append_delims(struct mdoc *, int, int *, char *);
1.155 schwarze 54: static enum mdoct lookup(struct mdoc *, enum mdoct,
55: int, int, const char *);
1.153 schwarze 56: static int macro_or_word(MACRO_PROT_ARGS, int);
1.168 ! schwarze 57: static void make_pending(struct mdoc *, struct mdoc_node *,
! 58: struct mdoc_node *, int, int);
1.154 schwarze 59: static int parse_rest(struct mdoc *, enum mdoct,
60: int, int *, char *);
1.131 schwarze 61: static enum mdoct rew_alt(enum mdoct);
62: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.53 kristaps 63: const struct mdoc_node *);
1.149 schwarze 64: static void rew_elem(struct mdoc *, enum mdoct);
65: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.166 schwarze 66: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.150 schwarze 67: static void rew_sub(enum mdoc_type, struct mdoc *,
1.53 kristaps 68: enum mdoct, int, int);
1.1 kristaps 69:
70: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 71: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 72: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
73: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
74: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 75: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
76: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
77: { in_line_eoln, 0 }, /* Pp */
78: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
79: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 80: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 81: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 82: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 83: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
84: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 93: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
95: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 99: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 100: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 101: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
102: { blk_full, MDOC_JOIN }, /* Nd */
103: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 104: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 105: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
107: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 109: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 110: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 111: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 112: { in_line_eoln, MDOC_JOIN }, /* %A */
113: { in_line_eoln, MDOC_JOIN }, /* %B */
114: { in_line_eoln, MDOC_JOIN }, /* %D */
115: { in_line_eoln, MDOC_JOIN }, /* %I */
116: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 117: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 118: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 119: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 120: { in_line_eoln, MDOC_JOIN }, /* %R */
121: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 122: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 123: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
124: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
125: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
126: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 129: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
130: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
131: { blk_full, MDOC_EXPLICIT }, /* Bf */
132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
133: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
134: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
137: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 138: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
140: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
142: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
143: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
145: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 148: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 149: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 150: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 152: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
153: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 154: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
155: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 156: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 157: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
158: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
159: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
160: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
161: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
162: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
164: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
165: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
166: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 167: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 168: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
169: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
170: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
172: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 173: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 174: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
175: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 176: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 177: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 178: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
179: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 180: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
181: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
182: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
183: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
184: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
185: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
186: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 187: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 188: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 189: { in_line_eoln, 0 }, /* Bt */
190: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 191: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 192: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 193: { in_line, 0 }, /* Lb */
1.123 schwarze 194: { in_line_eoln, 0 }, /* Lp */
195: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
196: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
197: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
198: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
199: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
200: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
201: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
202: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 203: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
204: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 205: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 206: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 207: { in_line_eoln, 0 }, /* br */
208: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 209: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 210: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 211: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 212: };
213:
214: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
215:
216:
217: /*
218: * This is called at the end of parsing. It must traverse up the tree,
219: * closing out open [implicit] scopes. Obviously, open explicit scopes
220: * are errors.
221: */
1.151 schwarze 222: void
1.119 schwarze 223: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 224: {
225: struct mdoc_node *n;
226:
227: /* Scan for open explicit scopes. */
228:
1.151 schwarze 229: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 230: mdoc->last->parent : mdoc->last;
1.1 kristaps 231:
1.94 schwarze 232: for ( ; n; n = n->parent)
1.151 schwarze 233: if (n->type == MDOC_BLOCK &&
234: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 235: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
236: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 237:
1.32 kristaps 238: /* Rewind to the first. */
239:
1.149 schwarze 240: rew_last(mdoc, mdoc->first);
1.1 kristaps 241: }
242:
1.32 kristaps 243: /*
1.153 schwarze 244: * Look up the macro at *p called by "from",
245: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 246: */
1.53 kristaps 247: static enum mdoct
1.155 schwarze 248: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28 kristaps 249: {
1.58 kristaps 250: enum mdoct res;
1.1 kristaps 251:
1.153 schwarze 252: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
253: res = mdoc_hash_find(p);
1.155 schwarze 254: if (res != MDOC_MAX) {
255: if (mdoc_macros[res].flags & MDOC_CALLABLE)
256: return(res);
257: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
258: mandoc_msg(MANDOCERR_MACRO_CALL,
259: mdoc->parse, line, ppos, p);
260: }
1.153 schwarze 261: }
1.1 kristaps 262: return(MDOC_MAX);
263: }
264:
1.166 schwarze 265: /*
266: * Rewind up to and including a specific node.
267: */
1.149 schwarze 268: static void
1.32 kristaps 269: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 270: {
1.100 kristaps 271: struct mdoc_node *n, *np;
1.1 kristaps 272:
273: assert(to);
274: mdoc->next = MDOC_NEXT_SIBLING;
275: while (mdoc->last != to) {
1.166 schwarze 276: if ( ! (mdoc->last->flags & MDOC_VALID))
277: mdoc->last->lastline = to->lastline -
278: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.100 kristaps 279: /*
280: * Save the parent here, because we may delete the
1.119 schwarze 281: * mdoc->last node in the post-validation phase and reset
282: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 283: * out to be lost.
284: */
285: np = mdoc->last->parent;
1.149 schwarze 286: mdoc_valid_post(mdoc);
1.99 kristaps 287: n = mdoc->last;
1.100 kristaps 288: mdoc->last = np;
1.1 kristaps 289: assert(mdoc->last);
1.99 kristaps 290: mdoc->last->last = n;
1.1 kristaps 291: }
1.149 schwarze 292: mdoc_valid_post(mdoc);
1.1 kristaps 293: }
294:
1.32 kristaps 295: /*
1.166 schwarze 296: * Rewind up to a specific block, including all blocks that broke it.
297: */
298: static void
299: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
300: {
301:
302: rew_last(mdoc, n);
303:
304: if (n->type != MDOC_BLOCK)
305: return;
306:
307: while ((n = n->pending) != NULL) {
308: rew_last(mdoc, n);
309: if (n->type == MDOC_HEAD)
310: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
311: }
312: }
313:
314: /*
1.84 schwarze 315: * For a block closing macro, return the corresponding opening one.
316: * Otherwise, return the macro itself.
1.32 kristaps 317: */
1.47 kristaps 318: static enum mdoct
319: rew_alt(enum mdoct tok)
1.1 kristaps 320: {
321: switch (tok) {
1.131 schwarze 322: case MDOC_Ac:
1.1 kristaps 323: return(MDOC_Ao);
1.131 schwarze 324: case MDOC_Bc:
1.1 kristaps 325: return(MDOC_Bo);
1.131 schwarze 326: case MDOC_Brc:
1.1 kristaps 327: return(MDOC_Bro);
1.131 schwarze 328: case MDOC_Dc:
1.1 kristaps 329: return(MDOC_Do);
1.131 schwarze 330: case MDOC_Ec:
1.1 kristaps 331: return(MDOC_Eo);
1.131 schwarze 332: case MDOC_Ed:
1.1 kristaps 333: return(MDOC_Bd);
1.131 schwarze 334: case MDOC_Ef:
1.1 kristaps 335: return(MDOC_Bf);
1.131 schwarze 336: case MDOC_Ek:
1.1 kristaps 337: return(MDOC_Bk);
1.131 schwarze 338: case MDOC_El:
1.1 kristaps 339: return(MDOC_Bl);
1.131 schwarze 340: case MDOC_Fc:
1.1 kristaps 341: return(MDOC_Fo);
1.131 schwarze 342: case MDOC_Oc:
1.1 kristaps 343: return(MDOC_Oo);
1.131 schwarze 344: case MDOC_Pc:
1.1 kristaps 345: return(MDOC_Po);
1.131 schwarze 346: case MDOC_Qc:
1.1 kristaps 347: return(MDOC_Qo);
1.131 schwarze 348: case MDOC_Re:
1.1 kristaps 349: return(MDOC_Rs);
1.131 schwarze 350: case MDOC_Sc:
1.1 kristaps 351: return(MDOC_So);
1.131 schwarze 352: case MDOC_Xc:
1.1 kristaps 353: return(MDOC_Xo);
354: default:
1.84 schwarze 355: return(tok);
1.1 kristaps 356: }
357: /* NOTREACHED */
358: }
359:
1.84 schwarze 360: /*
361: * Rewinding to tok, how do we have to handle *p?
362: * REWIND_NONE: *p would delimit tok, but no tok scope is open
363: * inside *p, so there is no need to rewind anything at all.
364: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
365: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 366: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.1 kristaps 367: */
1.51 kristaps 368: static enum rew
1.131 schwarze 369: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.47 kristaps 370: const struct mdoc_node *p)
1.1 kristaps 371: {
372:
1.86 schwarze 373: /*
374: * No matching token, no delimiting block, no broken block.
375: * This can happen when full implicit macros are called for
376: * the first time but try to rewind their previous
377: * instance anyway.
378: */
1.1 kristaps 379: if (MDOC_ROOT == p->type)
1.167 schwarze 380: return(REWIND_NONE);
1.86 schwarze 381:
382: /*
1.131 schwarze 383: * When starting to rewind, skip plain text
1.86 schwarze 384: * and nodes that have already been rewound.
385: */
1.161 schwarze 386: if (p->type == MDOC_TEXT || p->flags & (MDOC_VALID | MDOC_BREAK))
1.84 schwarze 387: return(REWIND_MORE);
388:
1.86 schwarze 389: /*
390: * The easiest case: Found a matching token.
391: * This applies to both blocks and elements.
392: */
1.84 schwarze 393: tok = rew_alt(tok);
394: if (tok == p->tok)
1.167 schwarze 395: return(type == p->type ? REWIND_THIS : REWIND_MORE);
1.84 schwarze 396:
1.86 schwarze 397: /*
398: * While elements do require rewinding for themselves,
399: * they never affect rewinding of other nodes.
400: */
1.84 schwarze 401: if (MDOC_ELEM == p->type)
402: return(REWIND_MORE);
1.1 kristaps 403:
1.86 schwarze 404: /*
405: * Blocks delimited by our target token get REWIND_MORE.
1.131 schwarze 406: * Blocks delimiting our target token get REWIND_NONE.
1.86 schwarze 407: */
1.1 kristaps 408: switch (tok) {
1.131 schwarze 409: case MDOC_It:
1.1 kristaps 410: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 411: return(REWIND_NONE);
1.1 kristaps 412: break;
1.131 schwarze 413: case MDOC_Nm:
1.88 schwarze 414: return(REWIND_NONE);
1.131 schwarze 415: case MDOC_Nd:
1.19 kristaps 416: /* FALLTHROUGH */
1.131 schwarze 417: case MDOC_Ss:
1.1 kristaps 418: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 419: return(REWIND_NONE);
1.1 kristaps 420: /* FALLTHROUGH */
1.131 schwarze 421: case MDOC_Sh:
1.138 schwarze 422: if (MDOC_ROOT == p->parent->type)
423: return(REWIND_THIS);
1.84 schwarze 424: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
425: MDOC_Sh == p->tok)
426: return(REWIND_MORE);
1.1 kristaps 427: break;
428: default:
429: break;
430: }
431:
1.86 schwarze 432: /*
433: * Default block rewinding rules.
1.167 schwarze 434: * In particular, let all blocks rewind Nm children.
1.146 schwarze 435: * Do not warn again when closing a block,
436: * since closing the body already warned.
1.86 schwarze 437: */
1.167 schwarze 438: if (MDOC_Nm == p->tok ||
439: MDOC_BLOCK == type || MDOC_BLOCK == p->type)
1.86 schwarze 440: return(REWIND_MORE);
441:
442: /*
1.98 kristaps 443: * By default, closing out full blocks
1.167 schwarze 444: * forces closing of broken explicit blocks.
1.86 schwarze 445: */
1.167 schwarze 446: return (REWIND_FORCE);
1.1 kristaps 447: }
448:
1.149 schwarze 449: static void
1.47 kristaps 450: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 451: {
452: struct mdoc_node *n;
453:
454: n = mdoc->last;
455: if (MDOC_ELEM != n->type)
456: n = n->parent;
457: assert(MDOC_ELEM == n->type);
458: assert(tok == n->tok);
1.149 schwarze 459: rew_last(mdoc, n);
1.1 kristaps 460: }
461:
1.83 schwarze 462: /*
1.168 ! schwarze 463: * We are trying to close the block *breaker,
1.83 schwarze 464: * but the child block *broken is still open.
1.168 ! schwarze 465: * Thus, postpone closing the *breaker
1.167 schwarze 466: * until the rew_pending() call closing *broken.
1.83 schwarze 467: */
1.168 ! schwarze 468: static void
! 469: make_pending(struct mdoc *mdoc, struct mdoc_node *breaker,
! 470: struct mdoc_node *broken, int line, int ppos)
1.83 schwarze 471: {
1.168 ! schwarze 472: struct mdoc_node *n;
1.83 schwarze 473:
1.168 ! schwarze 474: /* Iterate backwards, searching for the breaker. */
! 475:
! 476: for (n = broken->parent; ; n = n->parent) {
1.83 schwarze 477:
478: /*
1.158 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).
1.168 ! schwarze 482: * Graphically, [A n=[B! broken=[Z->B B] tok=A] Z]
! 483: * becomes [A broken=[B! [Z->B B] tok=A] Z]
1.158 schwarze 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!).
1.83 schwarze 489: */
1.168 ! schwarze 490: if (n == broken->pending) {
! 491: broken = n;
1.83 schwarze 492: continue;
493: }
494:
1.168 ! schwarze 495: if (n != breaker)
1.83 schwarze 496: continue;
497:
498: /*
499: * Found the breaker.
1.158 schwarze 500: * If another, outer breaker (X) is already pending on
501: * the *broken block (B), we must not clobber the link
1.83 schwarze 502: * to the outer breaker, but make it pending on the
1.158 schwarze 503: * new, now inner breaker (A).
504: * Graphically, [X! breaker=[A broken=[B->X X] tok=A] B]
505: * becomes [X! breaker=[A->X broken=[B X] tok=A] B]
506: * and finally [X! [A!->X [B->A X] A] B].
1.83 schwarze 507: */
508: if (broken->pending) {
509: struct mdoc_node *taker;
510:
511: /*
1.158 schwarze 512: * If the inner breaker (A) is already broken,
513: * too, it cannot take on the outer breaker (X)
514: * but must hand it on to its own breakers (Y):
515: * [X! [Y! breaker=[A->Y Y] broken=[B->X X] tok=A] B]
516: * [X! take=[Y!->X brea=[A->Y Y] brok=[B X] tok=A] B]
517: * and finally [X! [Y!->X [A!->Y Y] [B->A X] A] B].
1.83 schwarze 518: */
519: taker = breaker;
520: while (taker->pending)
521: taker = taker->pending;
522: taker->pending = broken->pending;
523: }
1.158 schwarze 524:
525: /*
526: * Now we have reduced the situation to the simplest
527: * case, which is just breaker=[A broken=[B tok=A] B]
528: * and becomes [A! [B->A A] B].
529: */
1.83 schwarze 530: broken->pending = breaker;
1.158 schwarze 531: breaker->flags |= MDOC_BREAK;
1.166 schwarze 532: if (breaker->body != NULL)
533: breaker->body->flags |= MDOC_BREAK;
1.137 schwarze 534: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.168 ! schwarze 535: "%s breaks %s", mdoc_macronames[breaker->tok],
1.131 schwarze 536: mdoc_macronames[broken->tok]);
1.168 ! schwarze 537: return;
1.83 schwarze 538: }
539: }
540:
1.150 schwarze 541: static void
1.131 schwarze 542: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 543: enum mdoct tok, int line, int ppos)
1.1 kristaps 544: {
1.160 schwarze 545: struct mdoc_node *n, *to;
1.1 kristaps 546:
1.160 schwarze 547: to = NULL;
1.119 schwarze 548: n = mdoc->last;
1.84 schwarze 549: while (n) {
550: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 551: case REWIND_NONE:
1.160 schwarze 552: if (to == NULL)
553: return;
554: n = to;
555: break;
1.131 schwarze 556: case REWIND_THIS:
1.124 schwarze 557: n->lastline = line -
1.150 schwarze 558: (mdoc->flags & MDOC_NEWLINE &&
559: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.84 schwarze 560: break;
1.131 schwarze 561: case REWIND_FORCE:
1.137 schwarze 562: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.131 schwarze 563: line, ppos, "%s breaks %s",
564: mdoc_macronames[tok],
565: mdoc_macronames[n->tok]);
1.98 kristaps 566: /* FALLTHROUGH */
1.131 schwarze 567: case REWIND_MORE:
1.124 schwarze 568: n->lastline = line -
1.150 schwarze 569: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.160 schwarze 570: to = n;
1.84 schwarze 571: n = n->parent;
572: continue;
1.32 kristaps 573: }
1.84 schwarze 574: break;
1.1 kristaps 575: }
576: assert(n);
1.166 schwarze 577: rew_pending(mdoc, n);
1.1 kristaps 578: }
579:
1.105 kristaps 580: /*
581: * Allocate a word and check whether it's punctuation or not.
582: * Punctuation consists of those tokens found in mdoc_isdelim().
583: */
1.150 schwarze 584: static void
1.123 schwarze 585: dword(struct mdoc *mdoc, int line, int col, const char *p,
586: enum mdelim d, int may_append)
1.105 kristaps 587: {
1.131 schwarze 588:
1.150 schwarze 589: if (d == DELIM_MAX)
1.105 kristaps 590: d = mdoc_isdelim(p);
591:
1.123 schwarze 592: if (may_append &&
1.150 schwarze 593: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
594: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
595: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 596: mdoc_word_append(mdoc, p);
1.150 schwarze 597: return;
1.123 schwarze 598: }
599:
1.150 schwarze 600: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 601:
1.108 schwarze 602: /*
1.144 schwarze 603: * If the word consists of a bare delimiter,
604: * flag the new node accordingly,
605: * unless doing so was vetoed by the invoking macro.
606: * Always clear the veto, it is only valid for one word.
1.108 schwarze 607: */
608:
1.144 schwarze 609: if (d == DELIM_OPEN)
610: mdoc->last->flags |= MDOC_DELIMO;
611: else if (d == DELIM_CLOSE &&
612: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 613: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 614: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 615: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 616: }
1.1 kristaps 617:
1.150 schwarze 618: static void
1.119 schwarze 619: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 620: {
1.153 schwarze 621: char *p;
1.66 kristaps 622: int la;
1.1 kristaps 623:
1.150 schwarze 624: if (buf[*pos] == '\0')
625: return;
1.1 kristaps 626:
627: for (;;) {
1.66 kristaps 628: la = *pos;
1.153 schwarze 629: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 630: break;
1.123 schwarze 631: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 632:
633: /*
634: * If we encounter end-of-sentence symbols, then trigger
635: * the double-space.
636: *
1.109 kristaps 637: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 638: * the last symbol, such that `. )' will cause the
639: * correct double-spacing. However, (1) groff isn't
640: * smart enough to do this and (2) it would require
641: * knowing which symbols break this behaviour, for
1.109 kristaps 642: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 643: */
1.150 schwarze 644:
1.127 schwarze 645: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 646: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 647: }
648: }
649:
650: /*
1.153 schwarze 651: * Parse one word.
652: * If it is a macro, call it and return 1.
653: * Otherwise, allocate it and return 0.
654: */
655: static int
656: macro_or_word(MACRO_PROT_ARGS, int parsed)
657: {
658: char *p;
659: enum mdoct ntok;
660:
661: p = buf + ppos;
662: ntok = MDOC_MAX;
1.157 schwarze 663: if (*p == '"')
1.153 schwarze 664: p++;
1.157 schwarze 665: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 666: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 667:
668: if (ntok == MDOC_MAX) {
669: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
670: mdoc_macros[tok].flags & MDOC_JOIN);
671: return(0);
672: } else {
673: if (mdoc_macros[tok].fp == in_line_eoln)
674: rew_elem(mdoc, tok);
675: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
676: if (tok == MDOC_MAX)
677: append_delims(mdoc, line, pos, buf);
678: return(1);
679: }
680: }
681:
682: /*
1.131 schwarze 683: * Close out block partial/full explicit.
1.1 kristaps 684: */
1.151 schwarze 685: static void
1.1 kristaps 686: blk_exp_close(MACRO_PROT_ARGS)
687: {
1.83 schwarze 688: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 689: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 690: struct mdoc_node *later; /* A sub-block starting later. */
1.166 schwarze 691: struct mdoc_node *n; /* Search back to our block. */
1.83 schwarze 692:
1.166 schwarze 693: int have_it, j, lastarg, maxargs, nl;
1.55 kristaps 694: enum margserr ac;
1.83 schwarze 695: enum mdoct atok, ntok;
1.1 kristaps 696: char *p;
697:
1.119 schwarze 698: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 699:
1.1 kristaps 700: switch (tok) {
1.131 schwarze 701: case MDOC_Ec:
1.1 kristaps 702: maxargs = 1;
703: break;
1.131 schwarze 704: case MDOC_Ek:
1.125 schwarze 705: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 706: /* FALLTHROUGH */
1.1 kristaps 707: default:
708: maxargs = 0;
709: break;
710: }
711:
1.83 schwarze 712: /*
713: * Search backwards for beginnings of blocks,
714: * both of our own and of pending sub-blocks.
715: */
1.151 schwarze 716:
1.160 schwarze 717: have_it = 0;
1.83 schwarze 718: atok = rew_alt(tok);
1.148 schwarze 719: body = endbody = later = NULL;
1.119 schwarze 720: for (n = mdoc->last; n; n = n->parent) {
1.161 schwarze 721: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.83 schwarze 722: continue;
723:
724: /* Remember the start of our own body. */
1.151 schwarze 725:
1.150 schwarze 726: if (n->type == MDOC_BODY && atok == n->tok) {
1.166 schwarze 727: if (n->end == ENDBODY_NOT) {
1.83 schwarze 728: body = n;
1.166 schwarze 729: n->lastline = line;
730: }
1.83 schwarze 731: continue;
732: }
733:
1.150 schwarze 734: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 735: continue;
1.160 schwarze 736:
737: if (n->tok == MDOC_It) {
738: have_it = 1;
739: continue;
740: }
741:
1.83 schwarze 742: if (atok == n->tok) {
1.166 schwarze 743: n->lastline = line;
1.83 schwarze 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: */
1.151 schwarze 751:
1.160 schwarze 752: if (later == NULL ||
753: (tok == MDOC_El && !have_it))
1.83 schwarze 754: break;
755:
1.131 schwarze 756: /*
1.167 schwarze 757: * When there is a pending sub block, postpone
758: * closing out the current block until the
759: * rew_pending() closing out the sub-block.
1.83 schwarze 760: */
1.151 schwarze 761:
1.168 ! schwarze 762: make_pending(mdoc, n, later, line, ppos);
1.83 schwarze 763:
764: /*
765: * Mark the place where the formatting - but not
766: * the scope - of the current block ends.
767: */
1.151 schwarze 768:
1.166 schwarze 769: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 770: atok, body, ENDBODY_SPACE);
1.151 schwarze 771:
772: /*
773: * If a block closing macro taking arguments
774: * breaks another block, put the arguments
1.166 schwarze 775: * into the end marker.
1.151 schwarze 776: */
777:
1.166 schwarze 778: if (maxargs)
1.148 schwarze 779: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 780: break;
781: }
782:
783: /*
784: * When finding an open sub block, remember the last
785: * open explicit block, or, in case there are only
786: * implicit ones, the first open implicit block.
787: */
1.151 schwarze 788:
1.160 schwarze 789: if (later == NULL ||
790: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.83 schwarze 791: later = n;
792: }
1.166 schwarze 793:
794: if (body == NULL) {
795: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
796: line, ppos, mdoc_macronames[tok]);
797: if (maxargs && endbody == NULL) {
798: /*
799: * Stray .Ec without previous .Eo:
800: * Break the output line, keep the arguments.
801: */
802: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
803: rew_elem(mdoc, MDOC_br);
804: }
805: } else if (endbody == NULL) {
806: rew_last(mdoc, body);
807: if (maxargs)
808: mdoc_tail_alloc(mdoc, line, ppos, atok);
809: }
1.83 schwarze 810:
1.150 schwarze 811: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
812: if (buf[*pos] != '\0')
1.136 schwarze 813: mandoc_vmsg(MANDOCERR_ARG_SKIP,
814: mdoc->parse, line, ppos,
815: "%s %s", mdoc_macronames[tok],
816: buf + *pos);
1.167 schwarze 817: if (endbody == NULL)
818: rew_pending(mdoc, n);
1.151 schwarze 819: return;
1.1 kristaps 820: }
821:
1.166 schwarze 822: if (endbody != NULL)
823: n = endbody;
1.148 schwarze 824: for (j = 0; ; j++) {
1.1 kristaps 825: lastarg = *pos;
826:
1.166 schwarze 827: if (j == maxargs && n != NULL) {
828: rew_pending(mdoc, n);
829: n = NULL;
1.1 kristaps 830: }
831:
1.119 schwarze 832: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 833: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 834: break;
835:
1.155 schwarze 836: ntok = ac == ARGS_QWORD ? MDOC_MAX :
837: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 838:
1.150 schwarze 839: if (ntok == MDOC_MAX) {
840: dword(mdoc, line, lastarg, p, DELIM_MAX,
841: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 842: continue;
843: }
1.1 kristaps 844:
1.166 schwarze 845: if (n != NULL) {
846: rew_pending(mdoc, n);
847: n = NULL;
1.54 kristaps 848: }
1.122 schwarze 849: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 850: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 851: break;
1.1 kristaps 852: }
853:
1.166 schwarze 854: if (n != NULL)
855: rew_pending(mdoc, n);
1.150 schwarze 856: if (nl)
857: append_delims(mdoc, line, pos, buf);
1.1 kristaps 858: }
859:
1.151 schwarze 860: static void
1.1 kristaps 861: in_line(MACRO_PROT_ARGS)
862: {
1.144 schwarze 863: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 864: enum mdoct ntok;
1.55 kristaps 865: enum margserr ac;
1.67 schwarze 866: enum mdelim d;
1.53 kristaps 867: struct mdoc_arg *arg;
868: char *p;
1.1 kristaps 869:
1.119 schwarze 870: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 871:
1.4 kristaps 872: /*
873: * Whether we allow ignored elements (those without content,
874: * usually because of reserved words) to squeak by.
875: */
1.45 kristaps 876:
1.4 kristaps 877: switch (tok) {
1.131 schwarze 878: case MDOC_An:
1.26 kristaps 879: /* FALLTHROUGH */
1.131 schwarze 880: case MDOC_Ar:
1.4 kristaps 881: /* FALLTHROUGH */
1.131 schwarze 882: case MDOC_Fl:
1.4 kristaps 883: /* FALLTHROUGH */
1.131 schwarze 884: case MDOC_Mt:
1.12 kristaps 885: /* FALLTHROUGH */
1.131 schwarze 886: case MDOC_Nm:
1.26 kristaps 887: /* FALLTHROUGH */
1.131 schwarze 888: case MDOC_Pa:
1.4 kristaps 889: nc = 1;
890: break;
891: default:
892: nc = 0;
893: break;
894: }
895:
1.152 schwarze 896: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 897:
1.144 schwarze 898: d = DELIM_NONE;
899: firstarg = 1;
1.142 schwarze 900: mayopen = 1;
1.70 kristaps 901: for (cnt = scope = 0;; ) {
1.1 kristaps 902: la = *pos;
1.119 schwarze 903: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 904:
1.144 schwarze 905: /*
906: * At the end of a macro line,
907: * opening delimiters do not suppress spacing.
908: */
909:
910: if (ac == ARGS_EOLN) {
911: if (d == DELIM_OPEN)
912: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 913: break;
1.144 schwarze 914: }
915:
916: /*
917: * The rest of the macro line is only punctuation,
918: * to be handled by append_delims().
919: * If there were no other arguments,
920: * do not allow the first one to suppress spacing,
921: * even if it turns out to be a closing one.
922: */
923:
924: if (ac == ARGS_PUNCT) {
925: if (cnt == 0 && nc == 0)
926: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 927: break;
1.144 schwarze 928: }
1.1 kristaps 929:
1.145 schwarze 930: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 931: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 932:
1.131 schwarze 933: /*
1.4 kristaps 934: * In this case, we've located a submacro and must
935: * execute it. Close out scope, if open. If no
936: * elements have been generated, either create one (nc)
937: * or raise a warning.
938: */
1.1 kristaps 939:
1.150 schwarze 940: if (ntok != MDOC_MAX) {
1.149 schwarze 941: if (scope)
942: rew_elem(mdoc, tok);
1.150 schwarze 943: if (nc && ! cnt) {
944: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 945: rew_last(mdoc, mdoc->last);
1.150 schwarze 946: } else if ( ! nc && ! cnt) {
1.7 kristaps 947: mdoc_argv_free(arg);
1.135 schwarze 948: mandoc_msg(MANDOCERR_MACRO_EMPTY,
949: mdoc->parse, line, ppos,
950: mdoc_macronames[tok]);
1.7 kristaps 951: }
1.151 schwarze 952: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 953: if (nl)
954: append_delims(mdoc, line, pos, buf);
1.151 schwarze 955: return;
1.131 schwarze 956: }
1.1 kristaps 957:
1.131 schwarze 958: /*
1.4 kristaps 959: * Non-quote-enclosed punctuation. Set up our scope, if
960: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 961: * the word.
1.4 kristaps 962: */
1.1 kristaps 963:
1.150 schwarze 964: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 965:
1.70 kristaps 966: if (DELIM_NONE != d) {
967: /*
968: * If we encounter closing punctuation, no word
1.144 schwarze 969: * has been emitted, no scope is open, and we're
1.70 kristaps 970: * allowed to have an empty element, then start
1.142 schwarze 971: * a new scope.
1.70 kristaps 972: */
1.142 schwarze 973: if ((d == DELIM_CLOSE ||
974: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 975: !cnt && !scope && nc && mayopen) {
1.150 schwarze 976: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 977: scope = 1;
1.142 schwarze 978: cnt++;
1.150 schwarze 979: if (tok == MDOC_Nm)
1.142 schwarze 980: mayopen = 0;
1.70 kristaps 981: }
982: /*
983: * Close out our scope, if one is open, before
984: * any punctuation.
985: */
1.149 schwarze 986: if (scope)
987: rew_elem(mdoc, tok);
1.70 kristaps 988: scope = 0;
1.145 schwarze 989: if (tok == MDOC_Fn)
990: mayopen = 0;
1.142 schwarze 991: } else if (mayopen && !scope) {
1.150 schwarze 992: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 993: scope = 1;
1.142 schwarze 994: cnt++;
1.1 kristaps 995: }
1.105 kristaps 996:
1.150 schwarze 997: dword(mdoc, line, la, p, d,
998: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 999:
1000: /*
1.144 schwarze 1001: * If the first argument is a closing delimiter,
1002: * do not suppress spacing before it.
1003: */
1004:
1005: if (firstarg && d == DELIM_CLOSE && !nc)
1006: mdoc->last->flags &= ~MDOC_DELIMC;
1007: firstarg = 0;
1008:
1009: /*
1.39 kristaps 1010: * `Fl' macros have their scope re-opened with each new
1011: * word so that the `-' can be added to each one without
1012: * having to parse out spaces.
1013: */
1.150 schwarze 1014: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1015: rew_elem(mdoc, tok);
1.70 kristaps 1016: scope = 0;
1.39 kristaps 1017: }
1.1 kristaps 1018: }
1019:
1.149 schwarze 1020: if (scope)
1021: rew_elem(mdoc, tok);
1.4 kristaps 1022:
1023: /*
1024: * If no elements have been collected and we're allowed to have
1025: * empties (nc), open a scope and close it out. Otherwise,
1026: * raise a warning.
1027: */
1.45 kristaps 1028:
1.150 schwarze 1029: if ( ! cnt) {
1030: if (nc) {
1031: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1032: rew_last(mdoc, mdoc->last);
1033: } else {
1034: mdoc_argv_free(arg);
1035: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1036: line, ppos, mdoc_macronames[tok]);
1037: }
1.7 kristaps 1038: }
1.150 schwarze 1039: if (nl)
1040: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1041: }
1042:
1.151 schwarze 1043: static void
1.1 kristaps 1044: blk_full(MACRO_PROT_ARGS)
1045: {
1.153 schwarze 1046: int la, nl, parsed;
1.1 kristaps 1047: struct mdoc_arg *arg;
1.165 schwarze 1048: struct mdoc_node *blk; /* Our own block. */
1049: struct mdoc_node *head; /* Our own head. */
1050: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 1051: struct mdoc_node *n;
1.59 kristaps 1052: enum margserr ac, lac;
1.1 kristaps 1053: char *p;
1054:
1.119 schwarze 1055: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1056:
1057: /* Skip items outside lists. */
1058:
1059: if (tok == MDOC_It) {
1060: for (n = mdoc->last; n; n = n->parent)
1.158 schwarze 1061: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1062: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.138 schwarze 1063: break;
1064: if (n == NULL) {
1065: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1066: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1067: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1068: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1069: return;
1.138 schwarze 1070: }
1071: }
1.63 kristaps 1072:
1.45 kristaps 1073: /* Close out prior implicit scope. */
1.19 kristaps 1074:
1.150 schwarze 1075: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1076: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1077: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1078: }
1079:
1.45 kristaps 1080: /*
1.109 kristaps 1081: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1082: * macro openings. Implicit ones first close out prior scope
1083: * (seen above). Delay opening the head until necessary to
1084: * allow leading punctuation to print. Special consideration
1085: * for `It -column', which has phrase-part syntax instead of
1086: * regular child nodes.
1087: */
1088:
1.152 schwarze 1089: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1090: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1091: head = body = NULL;
1.115 schwarze 1092:
1093: /*
1094: * Exception: Heads of `It' macros in `-diag' lists are not
1095: * parsed, even though `It' macros in general are parsed.
1096: */
1.151 schwarze 1097:
1.153 schwarze 1098: parsed = tok != MDOC_It ||
1099: mdoc->last->parent->tok != MDOC_Bl ||
1100: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1101:
1.45 kristaps 1102: /*
1103: * The `Nd' macro has all arguments in its body: it's a hybrid
1104: * of block partial-explicit and full-implicit. Stupid.
1105: */
1.19 kristaps 1106:
1.150 schwarze 1107: if (tok == MDOC_Nd) {
1108: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1109: rew_last(mdoc, head);
1.150 schwarze 1110: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1111: }
1112:
1.150 schwarze 1113: if (tok == MDOC_Bk)
1.123 schwarze 1114: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1115:
1.150 schwarze 1116: ac = ARGS_PEND;
1117: for (;;) {
1.45 kristaps 1118: la = *pos;
1.150 schwarze 1119: lac = ac;
1.119 schwarze 1120: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1121: if (ac == ARGS_PUNCT)
1.89 schwarze 1122: break;
1.150 schwarze 1123: if (ac == ARGS_EOLN) {
1124: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1125: break;
1126: /*
1127: * This is necessary: if the last token on a
1128: * line is a `Ta' or tab, then we'll get
1129: * ARGS_EOLN, so we must be smart enough to
1130: * reopen our scope if the last parse was a
1131: * phrase or partial phrase.
1132: */
1.167 schwarze 1133: if (body != NULL)
1134: rew_last(mdoc, body);
1.150 schwarze 1135: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1136: break;
1.75 kristaps 1137: }
1.45 kristaps 1138:
1.131 schwarze 1139: /*
1.73 kristaps 1140: * Emit leading punctuation (i.e., punctuation before
1141: * the MDOC_HEAD) for non-phrase types.
1142: */
1.45 kristaps 1143:
1.150 schwarze 1144: if (head == NULL &&
1145: ac != ARGS_PEND &&
1146: ac != ARGS_PHRASE &&
1147: ac != ARGS_PPHRASE &&
1148: ac != ARGS_QWORD &&
1149: mdoc_isdelim(p) == DELIM_OPEN) {
1150: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1151: continue;
1152: }
1153:
1.74 kristaps 1154: /* Open a head if one hasn't been opened. */
1.45 kristaps 1155:
1.150 schwarze 1156: if (head == NULL)
1157: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1158:
1.150 schwarze 1159: if (ac == ARGS_PHRASE ||
1160: ac == ARGS_PEND ||
1161: ac == ARGS_PPHRASE) {
1.151 schwarze 1162:
1.73 kristaps 1163: /*
1.74 kristaps 1164: * If we haven't opened a body yet, rewind the
1165: * head; if we have, rewind that instead.
1166: */
1167:
1.167 schwarze 1168: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1169: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1170:
1171: /*
1.73 kristaps 1172: * Process phrases: set whether we're in a
1173: * partial-phrase (this effects line handling)
1174: * then call down into the phrase parser.
1175: */
1.74 kristaps 1176:
1.150 schwarze 1177: if (ac == ARGS_PPHRASE)
1.119 schwarze 1178: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1179: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1180: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1181: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1182: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1183: continue;
1184: }
1185:
1.153 schwarze 1186: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1187: break;
1.45 kristaps 1188: }
1.1 kristaps 1189:
1.165 schwarze 1190: if (blk->flags & MDOC_VALID)
1191: return;
1.150 schwarze 1192: if (head == NULL)
1193: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1194: if (nl)
1195: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1196: if (body != NULL)
1.77 kristaps 1197: goto out;
1.19 kristaps 1198:
1.47 kristaps 1199: /*
1.49 kristaps 1200: * If there is an open (i.e., unvalidated) sub-block requiring
1201: * explicit close-out, postpone switching the current block from
1.167 schwarze 1202: * head to body until the rew_pending() call closing out that
1.49 kristaps 1203: * sub-block.
1.47 kristaps 1204: */
1.119 schwarze 1205: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1206: if (n->type == MDOC_BLOCK &&
1207: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1208: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1209: n->pending = head;
1.151 schwarze 1210: return;
1.47 kristaps 1211: }
1212: }
1213:
1.45 kristaps 1214: /* Close out scopes to remain in a consistent state. */
1215:
1.167 schwarze 1216: rew_last(mdoc, head);
1217: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1218: out:
1.150 schwarze 1219: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1220: rew_last(mdoc, body);
1221: rew_last(mdoc, blk);
1.150 schwarze 1222: mdoc->flags &= ~MDOC_FREECOL;
1223: }
1.1 kristaps 1224: }
1225:
1.151 schwarze 1226: static void
1.1 kristaps 1227: blk_part_imp(MACRO_PROT_ARGS)
1228: {
1.63 kristaps 1229: int la, nl;
1.55 kristaps 1230: enum margserr ac;
1.1 kristaps 1231: char *p;
1.43 kristaps 1232: struct mdoc_node *blk; /* saved block context */
1233: struct mdoc_node *body; /* saved body context */
1234: struct mdoc_node *n;
1.1 kristaps 1235:
1.119 schwarze 1236: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1237:
1.43 kristaps 1238: /*
1239: * A macro that spans to the end of the line. This is generally
1240: * (but not necessarily) called as the first macro. The block
1241: * has a head as the immediate child, which is always empty,
1242: * followed by zero or more opening punctuation nodes, then the
1243: * body (which may be empty, depending on the macro), then zero
1244: * or more closing punctuation nodes.
1245: */
1.32 kristaps 1246:
1.150 schwarze 1247: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1248: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1249:
1.43 kristaps 1250: /*
1251: * Open the body scope "on-demand", that is, after we've
1252: * processed all our the leading delimiters (open parenthesis,
1253: * etc.).
1254: */
1.1 kristaps 1255:
1.43 kristaps 1256: for (body = NULL; ; ) {
1.32 kristaps 1257: la = *pos;
1.119 schwarze 1258: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1259: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1260: break;
1261:
1.150 schwarze 1262: if (body == NULL && ac != ARGS_QWORD &&
1263: mdoc_isdelim(p) == DELIM_OPEN) {
1264: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1265: continue;
1.123 schwarze 1266: }
1.1 kristaps 1267:
1.150 schwarze 1268: if (body == NULL)
1269: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1270:
1.153 schwarze 1271: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1272: break;
1.1 kristaps 1273: }
1.150 schwarze 1274: if (body == NULL)
1275: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1276:
1.83 schwarze 1277: /*
1278: * If there is an open sub-block requiring explicit close-out,
1.167 schwarze 1279: * postpone closing out the current block until the
1280: * rew_pending() call closing out the sub-block.
1.83 schwarze 1281: */
1.151 schwarze 1282:
1.119 schwarze 1283: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1284: n = n->parent) {
1.150 schwarze 1285: if (n->type == MDOC_BLOCK &&
1286: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1287: ! (n->flags & MDOC_VALID)) {
1.168 ! schwarze 1288: make_pending(mdoc, blk, n, line, ppos);
1.150 schwarze 1289: mdoc_endbody_alloc(mdoc, line, ppos,
1290: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1291: return;
1.83 schwarze 1292: }
1293: }
1.134 schwarze 1294: assert(n == body);
1.164 schwarze 1295: rew_last(mdoc, body);
1.150 schwarze 1296: if (nl)
1297: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1298: rew_pending(mdoc, blk);
1.117 schwarze 1299:
1300: /* Move trailing .Ns out of scope. */
1301:
1302: for (n = body->child; n && n->next; n = n->next)
1303: /* Do nothing. */ ;
1.150 schwarze 1304: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1305: mdoc_node_relink(mdoc, n);
1.1 kristaps 1306: }
1307:
1.151 schwarze 1308: static void
1.1 kristaps 1309: blk_part_exp(MACRO_PROT_ARGS)
1310: {
1.60 kristaps 1311: int la, nl;
1.55 kristaps 1312: enum margserr ac;
1.43 kristaps 1313: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1314: char *p;
1315:
1.119 schwarze 1316: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1317:
1.43 kristaps 1318: /*
1319: * The opening of an explicit macro having zero or more leading
1320: * punctuation nodes; a head with optional single element (the
1321: * case of `Eo'); and a body that may be empty.
1322: */
1.32 kristaps 1323:
1.150 schwarze 1324: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1325: head = NULL;
1326: for (;;) {
1.32 kristaps 1327: la = *pos;
1.119 schwarze 1328: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1329: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1330: break;
1.43 kristaps 1331:
1332: /* Flush out leading punctuation. */
1333:
1.150 schwarze 1334: if (head == NULL && ac != ARGS_QWORD &&
1335: mdoc_isdelim(p) == DELIM_OPEN) {
1336: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1337: continue;
1.123 schwarze 1338: }
1.43 kristaps 1339:
1.150 schwarze 1340: if (head == NULL) {
1341: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1342: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1343: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1344: rew_last(mdoc, head);
1345: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1346: if (tok == MDOC_Eo)
1.43 kristaps 1347: continue;
1.1 kristaps 1348: }
1.43 kristaps 1349:
1.153 schwarze 1350: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1351: break;
1.1 kristaps 1352: }
1353:
1.43 kristaps 1354: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1355:
1.163 schwarze 1356: if (head == NULL) {
1357: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1358: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1359: }
1.150 schwarze 1360: if (nl)
1361: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1362: }
1363:
1.151 schwarze 1364: static void
1.1 kristaps 1365: in_line_argn(MACRO_PROT_ARGS)
1366: {
1.60 kristaps 1367: int la, flushed, j, maxargs, nl;
1.55 kristaps 1368: enum margserr ac;
1.53 kristaps 1369: struct mdoc_arg *arg;
1370: char *p;
1371: enum mdoct ntok;
1.1 kristaps 1372:
1.156 schwarze 1373: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1374:
1.46 kristaps 1375: /*
1376: * A line macro that has a fixed number of arguments (maxargs).
1377: * Only open the scope once the first non-leading-punctuation is
1378: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1379: * keep it open until the maximum number of arguments are
1380: * exhausted.
1381: */
1.1 kristaps 1382:
1383: switch (tok) {
1.131 schwarze 1384: case MDOC_Ap:
1.1 kristaps 1385: /* FALLTHROUGH */
1.131 schwarze 1386: case MDOC_Ns:
1.1 kristaps 1387: /* FALLTHROUGH */
1.131 schwarze 1388: case MDOC_Ux:
1.1 kristaps 1389: maxargs = 0;
1390: break;
1.131 schwarze 1391: case MDOC_Bx:
1.101 kristaps 1392: /* FALLTHROUGH */
1.132 schwarze 1393: case MDOC_Es:
1394: /* FALLTHROUGH */
1.131 schwarze 1395: case MDOC_Xr:
1.42 kristaps 1396: maxargs = 2;
1397: break;
1.1 kristaps 1398: default:
1399: maxargs = 1;
1400: break;
1401: }
1402:
1.152 schwarze 1403: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1404:
1.156 schwarze 1405: p = NULL;
1406: flushed = j = 0;
1407: for (;;) {
1.32 kristaps 1408: la = *pos;
1.119 schwarze 1409: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 schwarze 1410: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1411: if (j < 2 && tok == MDOC_Pf)
1412: mandoc_vmsg(MANDOCERR_PF_SKIP,
1413: mdoc->parse, line, ppos, "Pf %s",
1414: p == NULL ? "at eol" : p);
1.1 kristaps 1415: break;
1.156 schwarze 1416: }
1.1 kristaps 1417:
1.150 schwarze 1418: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1419: ac != ARGS_QWORD && j == 0 &&
1420: mdoc_isdelim(p) == DELIM_OPEN) {
1421: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1422: continue;
1.150 schwarze 1423: } else if (j == 0)
1424: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1425:
1426: if (j == maxargs && ! flushed) {
1.149 schwarze 1427: rew_elem(mdoc, tok);
1.46 kristaps 1428: flushed = 1;
1429: }
1430:
1.156 schwarze 1431: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1432: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1433:
1.150 schwarze 1434: if (ntok != MDOC_MAX) {
1.149 schwarze 1435: if ( ! flushed)
1436: rew_elem(mdoc, tok);
1.1 kristaps 1437: flushed = 1;
1.151 schwarze 1438: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1439: j++;
1.1 kristaps 1440: break;
1441: }
1442:
1.150 schwarze 1443: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1444: ac != ARGS_QWORD && ! flushed &&
1445: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1446: rew_elem(mdoc, tok);
1.1 kristaps 1447: flushed = 1;
1448: }
1.42 kristaps 1449:
1.150 schwarze 1450: dword(mdoc, line, la, p, DELIM_MAX,
1451: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1452: j++;
1.1 kristaps 1453: }
1454:
1.156 schwarze 1455: if (j == 0) {
1.150 schwarze 1456: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 schwarze 1457: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1458: append_delims(mdoc, line, pos, buf);
1459: }
1.149 schwarze 1460: if ( ! flushed)
1461: rew_elem(mdoc, tok);
1.150 schwarze 1462: if (nl)
1463: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1464: }
1465:
1.151 schwarze 1466: static void
1.1 kristaps 1467: in_line_eoln(MACRO_PROT_ARGS)
1468: {
1.53 kristaps 1469: struct mdoc_arg *arg;
1.1 kristaps 1470:
1.90 schwarze 1471: if (tok == MDOC_Pp)
1.119 schwarze 1472: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1473:
1.152 schwarze 1474: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1475: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1476: if (parse_rest(mdoc, tok, line, pos, buf))
1477: return;
1478: rew_elem(mdoc, tok);
1479: }
1480:
1481: /*
1482: * The simplest argument parser available: Parse the remaining
1483: * words until the end of the phrase or line and return 0
1484: * or until the next macro, call that macro, and return 1.
1485: */
1486: static int
1487: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1488: {
1489: int la;
1.1 kristaps 1490:
1491: for (;;) {
1492: la = *pos;
1.153 schwarze 1493: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1494: return(0);
1.153 schwarze 1495: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1496: return(1);
1.1 kristaps 1497: }
1498: }
1499:
1.151 schwarze 1500: static void
1.41 kristaps 1501: ctx_synopsis(MACRO_PROT_ARGS)
1502: {
1.60 kristaps 1503:
1.151 schwarze 1504: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1505: in_line(mdoc, tok, line, ppos, pos, buf);
1506: else if (tok == MDOC_Nm)
1507: blk_full(mdoc, tok, line, ppos, pos, buf);
1508: else {
1509: assert(tok == MDOC_Vt);
1510: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1511: }
1.1 kristaps 1512: }
1513:
1.24 kristaps 1514: /*
1515: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1516: * They're unusual because they're basically free-form text until a
1517: * macro is encountered.
1518: */
1.151 schwarze 1519: static void
1.75 kristaps 1520: phrase_ta(MACRO_PROT_ARGS)
1521: {
1.167 schwarze 1522: struct mdoc_node *body, *n;
1.75 kristaps 1523:
1.121 schwarze 1524: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1525:
1.167 schwarze 1526: body = NULL;
1527: for (n = mdoc->last; n != NULL; n = n->parent) {
1528: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1529: continue;
1530: if (n->tok == MDOC_It && n->type == MDOC_BODY)
1531: body = n;
1532: if (n->tok == MDOC_Bl)
1533: break;
1534: }
1535:
1.151 schwarze 1536: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1537: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1538: line, ppos, "Ta");
1.151 schwarze 1539: return;
1.121 schwarze 1540: }
1.75 kristaps 1541:
1.121 schwarze 1542: /* Advance to the next column. */
1.150 schwarze 1543:
1.167 schwarze 1544: rew_last(mdoc, body);
1.150 schwarze 1545: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1546: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1547: }
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