Annotation of mandoc/mdoc_macro.c, Revision 1.167
1.167 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.166 2015/02/02 04:26:44 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);
1.85 schwarze 57: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 58: struct mdoc *, 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: /*
463: * We are trying to close a block identified by tok,
464: * but the child block *broken is still open.
465: * Thus, postpone closing the tok block
1.167 ! schwarze 466: * until the rew_pending() call closing *broken.
1.83 schwarze 467: */
468: static int
469: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.119 schwarze 470: struct mdoc *mdoc, int line, int ppos)
1.83 schwarze 471: {
472: struct mdoc_node *breaker;
473:
474: /*
475: * Iterate backwards, searching for the block matching tok,
476: * that is, the block breaking the *broken block.
477: */
478: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
479:
480: /*
1.158 schwarze 481: * If the *broken block (Z) is already broken and we
482: * encounter its breaker (B), make the tok block (A)
483: * pending on that inner breaker (B).
484: * Graphically, [A breaker=[B! broken=[Z->B B] tok=A] Z]
485: * becomes breaker=[A broken=[B! [Z->B B] tok=A] Z]
486: * and finally [A! [B!->A [Z->B B] A] Z].
487: * In these graphics, "->" indicates the "pending"
488: * pointer and "!" indicates the MDOC_BREAK flag.
489: * Each of the cases gets one additional pointer (B->A)
490: * and one additional flag (A!).
1.83 schwarze 491: */
492: if (breaker == broken->pending) {
493: broken = breaker;
494: continue;
495: }
496:
1.84 schwarze 497: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 498: continue;
499: if (MDOC_BODY == broken->type)
500: broken = broken->parent;
501:
502: /*
503: * Found the breaker.
1.158 schwarze 504: * If another, outer breaker (X) is already pending on
505: * the *broken block (B), we must not clobber the link
1.83 schwarze 506: * to the outer breaker, but make it pending on the
1.158 schwarze 507: * new, now inner breaker (A).
508: * Graphically, [X! breaker=[A broken=[B->X X] tok=A] B]
509: * becomes [X! breaker=[A->X broken=[B X] tok=A] B]
510: * and finally [X! [A!->X [B->A X] A] B].
1.83 schwarze 511: */
512: if (broken->pending) {
513: struct mdoc_node *taker;
514:
515: /*
1.158 schwarze 516: * If the inner breaker (A) is already broken,
517: * too, it cannot take on the outer breaker (X)
518: * but must hand it on to its own breakers (Y):
519: * [X! [Y! breaker=[A->Y Y] broken=[B->X X] tok=A] B]
520: * [X! take=[Y!->X brea=[A->Y Y] brok=[B X] tok=A] B]
521: * and finally [X! [Y!->X [A!->Y Y] [B->A X] A] B].
1.83 schwarze 522: */
523: taker = breaker;
524: while (taker->pending)
525: taker = taker->pending;
526: taker->pending = broken->pending;
527: }
1.158 schwarze 528:
529: /*
530: * Now we have reduced the situation to the simplest
531: * case, which is just breaker=[A broken=[B tok=A] B]
532: * and becomes [A! [B->A A] B].
533: */
1.83 schwarze 534: broken->pending = breaker;
1.158 schwarze 535: breaker->flags |= MDOC_BREAK;
1.166 schwarze 536: if (breaker->body != NULL)
537: breaker->body->flags |= MDOC_BREAK;
1.137 schwarze 538: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.131 schwarze 539: "%s breaks %s", mdoc_macronames[tok],
540: mdoc_macronames[broken->tok]);
1.83 schwarze 541: return(1);
542: }
543:
544: /*
545: * Found no matching block for tok.
546: * Are you trying to close a block that is not open?
547: */
548: return(0);
549: }
550:
1.150 schwarze 551: static void
1.131 schwarze 552: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 553: enum mdoct tok, int line, int ppos)
1.1 kristaps 554: {
1.160 schwarze 555: struct mdoc_node *n, *to;
1.1 kristaps 556:
1.160 schwarze 557: to = NULL;
1.119 schwarze 558: n = mdoc->last;
1.84 schwarze 559: while (n) {
560: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 561: case REWIND_NONE:
1.160 schwarze 562: if (to == NULL)
563: return;
564: n = to;
565: break;
1.131 schwarze 566: case REWIND_THIS:
1.124 schwarze 567: n->lastline = line -
1.150 schwarze 568: (mdoc->flags & MDOC_NEWLINE &&
569: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.84 schwarze 570: break;
1.131 schwarze 571: case REWIND_FORCE:
1.137 schwarze 572: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.131 schwarze 573: line, ppos, "%s breaks %s",
574: mdoc_macronames[tok],
575: mdoc_macronames[n->tok]);
1.98 kristaps 576: /* FALLTHROUGH */
1.131 schwarze 577: case REWIND_MORE:
1.124 schwarze 578: n->lastline = line -
1.150 schwarze 579: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.160 schwarze 580: to = n;
1.84 schwarze 581: n = n->parent;
582: continue;
1.32 kristaps 583: }
1.84 schwarze 584: break;
1.1 kristaps 585: }
586: assert(n);
1.166 schwarze 587: rew_pending(mdoc, n);
1.1 kristaps 588: }
589:
1.105 kristaps 590: /*
591: * Allocate a word and check whether it's punctuation or not.
592: * Punctuation consists of those tokens found in mdoc_isdelim().
593: */
1.150 schwarze 594: static void
1.123 schwarze 595: dword(struct mdoc *mdoc, int line, int col, const char *p,
596: enum mdelim d, int may_append)
1.105 kristaps 597: {
1.131 schwarze 598:
1.150 schwarze 599: if (d == DELIM_MAX)
1.105 kristaps 600: d = mdoc_isdelim(p);
601:
1.123 schwarze 602: if (may_append &&
1.150 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) {
1.123 schwarze 606: mdoc_word_append(mdoc, p);
1.150 schwarze 607: return;
1.123 schwarze 608: }
609:
1.150 schwarze 610: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 611:
1.108 schwarze 612: /*
1.144 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.
1.108 schwarze 617: */
618:
1.144 schwarze 619: if (d == DELIM_OPEN)
620: mdoc->last->flags |= MDOC_DELIMO;
621: else if (d == DELIM_CLOSE &&
622: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 623: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 624: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 625: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 626: }
1.1 kristaps 627:
1.150 schwarze 628: static void
1.119 schwarze 629: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 630: {
1.153 schwarze 631: char *p;
1.66 kristaps 632: int la;
1.1 kristaps 633:
1.150 schwarze 634: if (buf[*pos] == '\0')
635: return;
1.1 kristaps 636:
637: for (;;) {
1.66 kristaps 638: la = *pos;
1.153 schwarze 639: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 640: break;
1.123 schwarze 641: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 642:
643: /*
644: * If we encounter end-of-sentence symbols, then trigger
645: * the double-space.
646: *
1.109 kristaps 647: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 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
1.109 kristaps 652: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 653: */
1.150 schwarze 654:
1.127 schwarze 655: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 656: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 657: }
658: }
659:
660: /*
1.153 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;
1.157 schwarze 673: if (*p == '"')
1.153 schwarze 674: p++;
1.157 schwarze 675: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 676: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 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: /*
1.131 schwarze 693: * Close out block partial/full explicit.
1.1 kristaps 694: */
1.151 schwarze 695: static void
1.1 kristaps 696: blk_exp_close(MACRO_PROT_ARGS)
697: {
1.83 schwarze 698: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 699: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 700: struct mdoc_node *later; /* A sub-block starting later. */
1.166 schwarze 701: struct mdoc_node *n; /* Search back to our block. */
1.83 schwarze 702:
1.166 schwarze 703: int have_it, j, lastarg, maxargs, nl;
1.55 kristaps 704: enum margserr ac;
1.83 schwarze 705: enum mdoct atok, ntok;
1.1 kristaps 706: char *p;
707:
1.119 schwarze 708: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 709:
1.1 kristaps 710: switch (tok) {
1.131 schwarze 711: case MDOC_Ec:
1.1 kristaps 712: maxargs = 1;
713: break;
1.131 schwarze 714: case MDOC_Ek:
1.125 schwarze 715: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 716: /* FALLTHROUGH */
1.1 kristaps 717: default:
718: maxargs = 0;
719: break;
720: }
721:
1.83 schwarze 722: /*
723: * Search backwards for beginnings of blocks,
724: * both of our own and of pending sub-blocks.
725: */
1.151 schwarze 726:
1.160 schwarze 727: have_it = 0;
1.83 schwarze 728: atok = rew_alt(tok);
1.148 schwarze 729: body = endbody = later = NULL;
1.119 schwarze 730: for (n = mdoc->last; n; n = n->parent) {
1.161 schwarze 731: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.83 schwarze 732: continue;
733:
734: /* Remember the start of our own body. */
1.151 schwarze 735:
1.150 schwarze 736: if (n->type == MDOC_BODY && atok == n->tok) {
1.166 schwarze 737: if (n->end == ENDBODY_NOT) {
1.83 schwarze 738: body = n;
1.166 schwarze 739: n->lastline = line;
740: }
1.83 schwarze 741: continue;
742: }
743:
1.150 schwarze 744: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 745: continue;
1.160 schwarze 746:
747: if (n->tok == MDOC_It) {
748: have_it = 1;
749: continue;
750: }
751:
1.83 schwarze 752: if (atok == n->tok) {
1.166 schwarze 753: n->lastline = line;
1.83 schwarze 754: assert(body);
755:
756: /*
757: * Found the start of our own block.
758: * When there is no pending sub block,
759: * just proceed to closing out.
760: */
1.151 schwarze 761:
1.160 schwarze 762: if (later == NULL ||
763: (tok == MDOC_El && !have_it))
1.83 schwarze 764: break;
765:
1.131 schwarze 766: /*
1.167 ! schwarze 767: * When there is a pending sub block, postpone
! 768: * closing out the current block until the
! 769: * rew_pending() closing out the sub-block.
1.83 schwarze 770: */
1.151 schwarze 771:
1.119 schwarze 772: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 773:
774: /*
775: * Mark the place where the formatting - but not
776: * the scope - of the current block ends.
777: */
1.151 schwarze 778:
1.166 schwarze 779: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 780: atok, body, ENDBODY_SPACE);
1.151 schwarze 781:
782: /*
783: * If a block closing macro taking arguments
784: * breaks another block, put the arguments
1.166 schwarze 785: * into the end marker.
1.151 schwarze 786: */
787:
1.166 schwarze 788: if (maxargs)
1.148 schwarze 789: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 790: break;
791: }
792:
793: /*
794: * When finding an open sub block, remember the last
795: * open explicit block, or, in case there are only
796: * implicit ones, the first open implicit block.
797: */
1.151 schwarze 798:
1.160 schwarze 799: if (later == NULL ||
800: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.83 schwarze 801: later = n;
802: }
1.166 schwarze 803:
804: if (body == NULL) {
805: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
806: line, ppos, mdoc_macronames[tok]);
807: if (maxargs && endbody == NULL) {
808: /*
809: * Stray .Ec without previous .Eo:
810: * Break the output line, keep the arguments.
811: */
812: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
813: rew_elem(mdoc, MDOC_br);
814: }
815: } else if (endbody == NULL) {
816: rew_last(mdoc, body);
817: if (maxargs)
818: mdoc_tail_alloc(mdoc, line, ppos, atok);
819: }
1.83 schwarze 820:
1.150 schwarze 821: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
822: if (buf[*pos] != '\0')
1.136 schwarze 823: mandoc_vmsg(MANDOCERR_ARG_SKIP,
824: mdoc->parse, line, ppos,
825: "%s %s", mdoc_macronames[tok],
826: buf + *pos);
1.167 ! schwarze 827: if (endbody == NULL)
! 828: rew_pending(mdoc, n);
1.151 schwarze 829: return;
1.1 kristaps 830: }
831:
1.166 schwarze 832: if (endbody != NULL)
833: n = endbody;
1.148 schwarze 834: for (j = 0; ; j++) {
1.1 kristaps 835: lastarg = *pos;
836:
1.166 schwarze 837: if (j == maxargs && n != NULL) {
838: rew_pending(mdoc, n);
839: n = NULL;
1.1 kristaps 840: }
841:
1.119 schwarze 842: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 843: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 844: break;
845:
1.155 schwarze 846: ntok = ac == ARGS_QWORD ? MDOC_MAX :
847: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 848:
1.150 schwarze 849: if (ntok == MDOC_MAX) {
850: dword(mdoc, line, lastarg, p, DELIM_MAX,
851: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 852: continue;
853: }
1.1 kristaps 854:
1.166 schwarze 855: if (n != NULL) {
856: rew_pending(mdoc, n);
857: n = NULL;
1.54 kristaps 858: }
1.122 schwarze 859: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 860: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 861: break;
1.1 kristaps 862: }
863:
1.166 schwarze 864: if (n != NULL)
865: rew_pending(mdoc, n);
1.150 schwarze 866: if (nl)
867: append_delims(mdoc, line, pos, buf);
1.1 kristaps 868: }
869:
1.151 schwarze 870: static void
1.1 kristaps 871: in_line(MACRO_PROT_ARGS)
872: {
1.144 schwarze 873: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 874: enum mdoct ntok;
1.55 kristaps 875: enum margserr ac;
1.67 schwarze 876: enum mdelim d;
1.53 kristaps 877: struct mdoc_arg *arg;
878: char *p;
1.1 kristaps 879:
1.119 schwarze 880: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 881:
1.4 kristaps 882: /*
883: * Whether we allow ignored elements (those without content,
884: * usually because of reserved words) to squeak by.
885: */
1.45 kristaps 886:
1.4 kristaps 887: switch (tok) {
1.131 schwarze 888: case MDOC_An:
1.26 kristaps 889: /* FALLTHROUGH */
1.131 schwarze 890: case MDOC_Ar:
1.4 kristaps 891: /* FALLTHROUGH */
1.131 schwarze 892: case MDOC_Fl:
1.4 kristaps 893: /* FALLTHROUGH */
1.131 schwarze 894: case MDOC_Mt:
1.12 kristaps 895: /* FALLTHROUGH */
1.131 schwarze 896: case MDOC_Nm:
1.26 kristaps 897: /* FALLTHROUGH */
1.131 schwarze 898: case MDOC_Pa:
1.4 kristaps 899: nc = 1;
900: break;
901: default:
902: nc = 0;
903: break;
904: }
905:
1.152 schwarze 906: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 907:
1.144 schwarze 908: d = DELIM_NONE;
909: firstarg = 1;
1.142 schwarze 910: mayopen = 1;
1.70 kristaps 911: for (cnt = scope = 0;; ) {
1.1 kristaps 912: la = *pos;
1.119 schwarze 913: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 914:
1.144 schwarze 915: /*
916: * At the end of a macro line,
917: * opening delimiters do not suppress spacing.
918: */
919:
920: if (ac == ARGS_EOLN) {
921: if (d == DELIM_OPEN)
922: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 923: break;
1.144 schwarze 924: }
925:
926: /*
927: * The rest of the macro line is only punctuation,
928: * to be handled by append_delims().
929: * If there were no other arguments,
930: * do not allow the first one to suppress spacing,
931: * even if it turns out to be a closing one.
932: */
933:
934: if (ac == ARGS_PUNCT) {
935: if (cnt == 0 && nc == 0)
936: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 937: break;
1.144 schwarze 938: }
1.1 kristaps 939:
1.145 schwarze 940: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 941: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 942:
1.131 schwarze 943: /*
1.4 kristaps 944: * In this case, we've located a submacro and must
945: * execute it. Close out scope, if open. If no
946: * elements have been generated, either create one (nc)
947: * or raise a warning.
948: */
1.1 kristaps 949:
1.150 schwarze 950: if (ntok != MDOC_MAX) {
1.149 schwarze 951: if (scope)
952: rew_elem(mdoc, tok);
1.150 schwarze 953: if (nc && ! cnt) {
954: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 955: rew_last(mdoc, mdoc->last);
1.150 schwarze 956: } else if ( ! nc && ! cnt) {
1.7 kristaps 957: mdoc_argv_free(arg);
1.135 schwarze 958: mandoc_msg(MANDOCERR_MACRO_EMPTY,
959: mdoc->parse, line, ppos,
960: mdoc_macronames[tok]);
1.7 kristaps 961: }
1.151 schwarze 962: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 963: if (nl)
964: append_delims(mdoc, line, pos, buf);
1.151 schwarze 965: return;
1.131 schwarze 966: }
1.1 kristaps 967:
1.131 schwarze 968: /*
1.4 kristaps 969: * Non-quote-enclosed punctuation. Set up our scope, if
970: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 971: * the word.
1.4 kristaps 972: */
1.1 kristaps 973:
1.150 schwarze 974: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 975:
1.70 kristaps 976: if (DELIM_NONE != d) {
977: /*
978: * If we encounter closing punctuation, no word
1.144 schwarze 979: * has been emitted, no scope is open, and we're
1.70 kristaps 980: * allowed to have an empty element, then start
1.142 schwarze 981: * a new scope.
1.70 kristaps 982: */
1.142 schwarze 983: if ((d == DELIM_CLOSE ||
984: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 985: !cnt && !scope && nc && mayopen) {
1.150 schwarze 986: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 987: scope = 1;
1.142 schwarze 988: cnt++;
1.150 schwarze 989: if (tok == MDOC_Nm)
1.142 schwarze 990: mayopen = 0;
1.70 kristaps 991: }
992: /*
993: * Close out our scope, if one is open, before
994: * any punctuation.
995: */
1.149 schwarze 996: if (scope)
997: rew_elem(mdoc, tok);
1.70 kristaps 998: scope = 0;
1.145 schwarze 999: if (tok == MDOC_Fn)
1000: mayopen = 0;
1.142 schwarze 1001: } else if (mayopen && !scope) {
1.150 schwarze 1002: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 1003: scope = 1;
1.142 schwarze 1004: cnt++;
1.1 kristaps 1005: }
1.105 kristaps 1006:
1.150 schwarze 1007: dword(mdoc, line, la, p, d,
1008: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 1009:
1010: /*
1.144 schwarze 1011: * If the first argument is a closing delimiter,
1012: * do not suppress spacing before it.
1013: */
1014:
1015: if (firstarg && d == DELIM_CLOSE && !nc)
1016: mdoc->last->flags &= ~MDOC_DELIMC;
1017: firstarg = 0;
1018:
1019: /*
1.39 kristaps 1020: * `Fl' macros have their scope re-opened with each new
1021: * word so that the `-' can be added to each one without
1022: * having to parse out spaces.
1023: */
1.150 schwarze 1024: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1025: rew_elem(mdoc, tok);
1.70 kristaps 1026: scope = 0;
1.39 kristaps 1027: }
1.1 kristaps 1028: }
1029:
1.149 schwarze 1030: if (scope)
1031: rew_elem(mdoc, tok);
1.4 kristaps 1032:
1033: /*
1034: * If no elements have been collected and we're allowed to have
1035: * empties (nc), open a scope and close it out. Otherwise,
1036: * raise a warning.
1037: */
1.45 kristaps 1038:
1.150 schwarze 1039: if ( ! cnt) {
1040: if (nc) {
1041: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1042: rew_last(mdoc, mdoc->last);
1043: } else {
1044: mdoc_argv_free(arg);
1045: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1046: line, ppos, mdoc_macronames[tok]);
1047: }
1.7 kristaps 1048: }
1.150 schwarze 1049: if (nl)
1050: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1051: }
1052:
1.151 schwarze 1053: static void
1.1 kristaps 1054: blk_full(MACRO_PROT_ARGS)
1055: {
1.153 schwarze 1056: int la, nl, parsed;
1.1 kristaps 1057: struct mdoc_arg *arg;
1.165 schwarze 1058: struct mdoc_node *blk; /* Our own block. */
1059: struct mdoc_node *head; /* Our own head. */
1060: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 1061: struct mdoc_node *n;
1.59 kristaps 1062: enum margserr ac, lac;
1.1 kristaps 1063: char *p;
1064:
1.119 schwarze 1065: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1066:
1067: /* Skip items outside lists. */
1068:
1069: if (tok == MDOC_It) {
1070: for (n = mdoc->last; n; n = n->parent)
1.158 schwarze 1071: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1072: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.138 schwarze 1073: break;
1074: if (n == NULL) {
1075: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1076: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1077: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1078: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1079: return;
1.138 schwarze 1080: }
1081: }
1.63 kristaps 1082:
1.45 kristaps 1083: /* Close out prior implicit scope. */
1.19 kristaps 1084:
1.150 schwarze 1085: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1086: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1087: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1088: }
1089:
1.45 kristaps 1090: /*
1.109 kristaps 1091: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1092: * macro openings. Implicit ones first close out prior scope
1093: * (seen above). Delay opening the head until necessary to
1094: * allow leading punctuation to print. Special consideration
1095: * for `It -column', which has phrase-part syntax instead of
1096: * regular child nodes.
1097: */
1098:
1.152 schwarze 1099: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1100: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1101: head = body = NULL;
1.115 schwarze 1102:
1103: /*
1104: * Exception: Heads of `It' macros in `-diag' lists are not
1105: * parsed, even though `It' macros in general are parsed.
1106: */
1.151 schwarze 1107:
1.153 schwarze 1108: parsed = tok != MDOC_It ||
1109: mdoc->last->parent->tok != MDOC_Bl ||
1110: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1111:
1.45 kristaps 1112: /*
1113: * The `Nd' macro has all arguments in its body: it's a hybrid
1114: * of block partial-explicit and full-implicit. Stupid.
1115: */
1.19 kristaps 1116:
1.150 schwarze 1117: if (tok == MDOC_Nd) {
1118: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1119: rew_last(mdoc, head);
1.150 schwarze 1120: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1121: }
1122:
1.150 schwarze 1123: if (tok == MDOC_Bk)
1.123 schwarze 1124: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1125:
1.150 schwarze 1126: ac = ARGS_PEND;
1127: for (;;) {
1.45 kristaps 1128: la = *pos;
1.150 schwarze 1129: lac = ac;
1.119 schwarze 1130: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1131: if (ac == ARGS_PUNCT)
1.89 schwarze 1132: break;
1.150 schwarze 1133: if (ac == ARGS_EOLN) {
1134: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1135: break;
1136: /*
1137: * This is necessary: if the last token on a
1138: * line is a `Ta' or tab, then we'll get
1139: * ARGS_EOLN, so we must be smart enough to
1140: * reopen our scope if the last parse was a
1141: * phrase or partial phrase.
1142: */
1.167 ! schwarze 1143: if (body != NULL)
! 1144: rew_last(mdoc, body);
1.150 schwarze 1145: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1146: break;
1.75 kristaps 1147: }
1.45 kristaps 1148:
1.131 schwarze 1149: /*
1.73 kristaps 1150: * Emit leading punctuation (i.e., punctuation before
1151: * the MDOC_HEAD) for non-phrase types.
1152: */
1.45 kristaps 1153:
1.150 schwarze 1154: if (head == NULL &&
1155: ac != ARGS_PEND &&
1156: ac != ARGS_PHRASE &&
1157: ac != ARGS_PPHRASE &&
1158: ac != ARGS_QWORD &&
1159: mdoc_isdelim(p) == DELIM_OPEN) {
1160: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1161: continue;
1162: }
1163:
1.74 kristaps 1164: /* Open a head if one hasn't been opened. */
1.45 kristaps 1165:
1.150 schwarze 1166: if (head == NULL)
1167: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1168:
1.150 schwarze 1169: if (ac == ARGS_PHRASE ||
1170: ac == ARGS_PEND ||
1171: ac == ARGS_PPHRASE) {
1.151 schwarze 1172:
1.73 kristaps 1173: /*
1.74 kristaps 1174: * If we haven't opened a body yet, rewind the
1175: * head; if we have, rewind that instead.
1176: */
1177:
1.167 ! schwarze 1178: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1179: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1180:
1181: /*
1.73 kristaps 1182: * Process phrases: set whether we're in a
1183: * partial-phrase (this effects line handling)
1184: * then call down into the phrase parser.
1185: */
1.74 kristaps 1186:
1.150 schwarze 1187: if (ac == ARGS_PPHRASE)
1.119 schwarze 1188: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1189: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1190: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1191: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1192: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1193: continue;
1194: }
1195:
1.153 schwarze 1196: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1197: break;
1.45 kristaps 1198: }
1.1 kristaps 1199:
1.165 schwarze 1200: if (blk->flags & MDOC_VALID)
1201: return;
1.150 schwarze 1202: if (head == NULL)
1203: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1204: if (nl)
1205: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1206: if (body != NULL)
1.77 kristaps 1207: goto out;
1.19 kristaps 1208:
1.47 kristaps 1209: /*
1.49 kristaps 1210: * If there is an open (i.e., unvalidated) sub-block requiring
1211: * explicit close-out, postpone switching the current block from
1.167 ! schwarze 1212: * head to body until the rew_pending() call closing out that
1.49 kristaps 1213: * sub-block.
1.47 kristaps 1214: */
1.119 schwarze 1215: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1216: if (n->type == MDOC_BLOCK &&
1217: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1218: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1219: n->pending = head;
1.151 schwarze 1220: return;
1.47 kristaps 1221: }
1222: }
1223:
1.45 kristaps 1224: /* Close out scopes to remain in a consistent state. */
1225:
1.167 ! schwarze 1226: rew_last(mdoc, head);
! 1227: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1228: out:
1.150 schwarze 1229: if (mdoc->flags & MDOC_FREECOL) {
1.167 ! schwarze 1230: rew_last(mdoc, body);
! 1231: rew_last(mdoc, blk);
1.150 schwarze 1232: mdoc->flags &= ~MDOC_FREECOL;
1233: }
1.1 kristaps 1234: }
1235:
1.151 schwarze 1236: static void
1.1 kristaps 1237: blk_part_imp(MACRO_PROT_ARGS)
1238: {
1.63 kristaps 1239: int la, nl;
1.55 kristaps 1240: enum margserr ac;
1.1 kristaps 1241: char *p;
1.43 kristaps 1242: struct mdoc_node *blk; /* saved block context */
1243: struct mdoc_node *body; /* saved body context */
1244: struct mdoc_node *n;
1.1 kristaps 1245:
1.119 schwarze 1246: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1247:
1.43 kristaps 1248: /*
1249: * A macro that spans to the end of the line. This is generally
1250: * (but not necessarily) called as the first macro. The block
1251: * has a head as the immediate child, which is always empty,
1252: * followed by zero or more opening punctuation nodes, then the
1253: * body (which may be empty, depending on the macro), then zero
1254: * or more closing punctuation nodes.
1255: */
1.32 kristaps 1256:
1.150 schwarze 1257: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1258: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1259:
1.43 kristaps 1260: /*
1261: * Open the body scope "on-demand", that is, after we've
1262: * processed all our the leading delimiters (open parenthesis,
1263: * etc.).
1264: */
1.1 kristaps 1265:
1.43 kristaps 1266: for (body = NULL; ; ) {
1.32 kristaps 1267: la = *pos;
1.119 schwarze 1268: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1269: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1270: break;
1271:
1.150 schwarze 1272: if (body == NULL && ac != ARGS_QWORD &&
1273: mdoc_isdelim(p) == DELIM_OPEN) {
1274: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1275: continue;
1.123 schwarze 1276: }
1.1 kristaps 1277:
1.150 schwarze 1278: if (body == NULL)
1279: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1280:
1.153 schwarze 1281: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1282: break;
1.1 kristaps 1283: }
1.150 schwarze 1284: if (body == NULL)
1285: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1286:
1.83 schwarze 1287: /*
1288: * If there is an open sub-block requiring explicit close-out,
1.167 ! schwarze 1289: * postpone closing out the current block until the
! 1290: * rew_pending() call closing out the sub-block.
1.83 schwarze 1291: */
1.151 schwarze 1292:
1.119 schwarze 1293: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1294: n = n->parent) {
1.150 schwarze 1295: if (n->type == MDOC_BLOCK &&
1296: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1297: ! (n->flags & MDOC_VALID)) {
1.119 schwarze 1298: make_pending(n, tok, mdoc, line, ppos);
1.150 schwarze 1299: mdoc_endbody_alloc(mdoc, line, ppos,
1300: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1301: return;
1.83 schwarze 1302: }
1303: }
1.134 schwarze 1304: assert(n == body);
1.164 schwarze 1305: rew_last(mdoc, body);
1.150 schwarze 1306: if (nl)
1307: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1308: rew_pending(mdoc, blk);
1.117 schwarze 1309:
1310: /* Move trailing .Ns out of scope. */
1311:
1312: for (n = body->child; n && n->next; n = n->next)
1313: /* Do nothing. */ ;
1.150 schwarze 1314: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1315: mdoc_node_relink(mdoc, n);
1.1 kristaps 1316: }
1317:
1.151 schwarze 1318: static void
1.1 kristaps 1319: blk_part_exp(MACRO_PROT_ARGS)
1320: {
1.60 kristaps 1321: int la, nl;
1.55 kristaps 1322: enum margserr ac;
1.43 kristaps 1323: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1324: char *p;
1325:
1.119 schwarze 1326: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1327:
1.43 kristaps 1328: /*
1329: * The opening of an explicit macro having zero or more leading
1330: * punctuation nodes; a head with optional single element (the
1331: * case of `Eo'); and a body that may be empty.
1332: */
1.32 kristaps 1333:
1.150 schwarze 1334: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1335: head = NULL;
1336: for (;;) {
1.32 kristaps 1337: la = *pos;
1.119 schwarze 1338: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1339: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1340: break;
1.43 kristaps 1341:
1342: /* Flush out leading punctuation. */
1343:
1.150 schwarze 1344: if (head == NULL && ac != ARGS_QWORD &&
1345: mdoc_isdelim(p) == DELIM_OPEN) {
1346: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1347: continue;
1.123 schwarze 1348: }
1.43 kristaps 1349:
1.150 schwarze 1350: if (head == NULL) {
1351: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1352: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1353: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1354: rew_last(mdoc, head);
1355: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1356: if (tok == MDOC_Eo)
1.43 kristaps 1357: continue;
1.1 kristaps 1358: }
1.43 kristaps 1359:
1.153 schwarze 1360: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1361: break;
1.1 kristaps 1362: }
1363:
1.43 kristaps 1364: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1365:
1.163 schwarze 1366: if (head == NULL) {
1367: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1368: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1369: }
1.150 schwarze 1370: if (nl)
1371: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1372: }
1373:
1.151 schwarze 1374: static void
1.1 kristaps 1375: in_line_argn(MACRO_PROT_ARGS)
1376: {
1.60 kristaps 1377: int la, flushed, j, maxargs, nl;
1.55 kristaps 1378: enum margserr ac;
1.53 kristaps 1379: struct mdoc_arg *arg;
1380: char *p;
1381: enum mdoct ntok;
1.1 kristaps 1382:
1.156 schwarze 1383: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1384:
1.46 kristaps 1385: /*
1386: * A line macro that has a fixed number of arguments (maxargs).
1387: * Only open the scope once the first non-leading-punctuation is
1388: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1389: * keep it open until the maximum number of arguments are
1390: * exhausted.
1391: */
1.1 kristaps 1392:
1393: switch (tok) {
1.131 schwarze 1394: case MDOC_Ap:
1.1 kristaps 1395: /* FALLTHROUGH */
1.131 schwarze 1396: case MDOC_Ns:
1.1 kristaps 1397: /* FALLTHROUGH */
1.131 schwarze 1398: case MDOC_Ux:
1.1 kristaps 1399: maxargs = 0;
1400: break;
1.131 schwarze 1401: case MDOC_Bx:
1.101 kristaps 1402: /* FALLTHROUGH */
1.132 schwarze 1403: case MDOC_Es:
1404: /* FALLTHROUGH */
1.131 schwarze 1405: case MDOC_Xr:
1.42 kristaps 1406: maxargs = 2;
1407: break;
1.1 kristaps 1408: default:
1409: maxargs = 1;
1410: break;
1411: }
1412:
1.152 schwarze 1413: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1414:
1.156 schwarze 1415: p = NULL;
1416: flushed = j = 0;
1417: for (;;) {
1.32 kristaps 1418: la = *pos;
1.119 schwarze 1419: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 schwarze 1420: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1421: if (j < 2 && tok == MDOC_Pf)
1422: mandoc_vmsg(MANDOCERR_PF_SKIP,
1423: mdoc->parse, line, ppos, "Pf %s",
1424: p == NULL ? "at eol" : p);
1.1 kristaps 1425: break;
1.156 schwarze 1426: }
1.1 kristaps 1427:
1.150 schwarze 1428: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1429: ac != ARGS_QWORD && j == 0 &&
1430: mdoc_isdelim(p) == DELIM_OPEN) {
1431: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1432: continue;
1.150 schwarze 1433: } else if (j == 0)
1434: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1435:
1436: if (j == maxargs && ! flushed) {
1.149 schwarze 1437: rew_elem(mdoc, tok);
1.46 kristaps 1438: flushed = 1;
1439: }
1440:
1.156 schwarze 1441: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1442: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1443:
1.150 schwarze 1444: if (ntok != MDOC_MAX) {
1.149 schwarze 1445: if ( ! flushed)
1446: rew_elem(mdoc, tok);
1.1 kristaps 1447: flushed = 1;
1.151 schwarze 1448: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1449: j++;
1.1 kristaps 1450: break;
1451: }
1452:
1.150 schwarze 1453: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1454: ac != ARGS_QWORD && ! flushed &&
1455: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1456: rew_elem(mdoc, tok);
1.1 kristaps 1457: flushed = 1;
1458: }
1.42 kristaps 1459:
1.150 schwarze 1460: dword(mdoc, line, la, p, DELIM_MAX,
1461: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1462: j++;
1.1 kristaps 1463: }
1464:
1.156 schwarze 1465: if (j == 0) {
1.150 schwarze 1466: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 schwarze 1467: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1468: append_delims(mdoc, line, pos, buf);
1469: }
1.149 schwarze 1470: if ( ! flushed)
1471: rew_elem(mdoc, tok);
1.150 schwarze 1472: if (nl)
1473: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1474: }
1475:
1.151 schwarze 1476: static void
1.1 kristaps 1477: in_line_eoln(MACRO_PROT_ARGS)
1478: {
1.53 kristaps 1479: struct mdoc_arg *arg;
1.1 kristaps 1480:
1.90 schwarze 1481: if (tok == MDOC_Pp)
1.119 schwarze 1482: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1483:
1.152 schwarze 1484: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1485: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1486: if (parse_rest(mdoc, tok, line, pos, buf))
1487: return;
1488: rew_elem(mdoc, tok);
1489: }
1490:
1491: /*
1492: * The simplest argument parser available: Parse the remaining
1493: * words until the end of the phrase or line and return 0
1494: * or until the next macro, call that macro, and return 1.
1495: */
1496: static int
1497: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1498: {
1499: int la;
1.1 kristaps 1500:
1501: for (;;) {
1502: la = *pos;
1.153 schwarze 1503: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1504: return(0);
1.153 schwarze 1505: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1506: return(1);
1.1 kristaps 1507: }
1508: }
1509:
1.151 schwarze 1510: static void
1.41 kristaps 1511: ctx_synopsis(MACRO_PROT_ARGS)
1512: {
1.60 kristaps 1513:
1.151 schwarze 1514: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1515: in_line(mdoc, tok, line, ppos, pos, buf);
1516: else if (tok == MDOC_Nm)
1517: blk_full(mdoc, tok, line, ppos, pos, buf);
1518: else {
1519: assert(tok == MDOC_Vt);
1520: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1521: }
1.1 kristaps 1522: }
1523:
1.24 kristaps 1524: /*
1525: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1526: * They're unusual because they're basically free-form text until a
1527: * macro is encountered.
1528: */
1.151 schwarze 1529: static void
1.75 kristaps 1530: phrase_ta(MACRO_PROT_ARGS)
1531: {
1.167 ! schwarze 1532: struct mdoc_node *body, *n;
1.75 kristaps 1533:
1.121 schwarze 1534: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1535:
1.167 ! schwarze 1536: body = NULL;
! 1537: for (n = mdoc->last; n != NULL; n = n->parent) {
! 1538: if (n->flags & (MDOC_VALID | MDOC_BREAK))
! 1539: continue;
! 1540: if (n->tok == MDOC_It && n->type == MDOC_BODY)
! 1541: body = n;
! 1542: if (n->tok == MDOC_Bl)
! 1543: break;
! 1544: }
! 1545:
1.151 schwarze 1546: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1547: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1548: line, ppos, "Ta");
1.151 schwarze 1549: return;
1.121 schwarze 1550: }
1.75 kristaps 1551:
1.121 schwarze 1552: /* Advance to the next column. */
1.150 schwarze 1553:
1.167 ! schwarze 1554: rew_last(mdoc, body);
1.150 schwarze 1555: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1556: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1557: }
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