Annotation of mandoc/mdoc_macro.c, Revision 1.154
1.154 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.153 2014/11/29 03:37:44 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.143 schwarze 4: * Copyright (c) 2010, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 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,
1.98 kristaps 38: REWIND_FORCE,
1.84 schwarze 39: REWIND_LATER,
1.91 kristaps 40: REWIND_ERROR
1.51 kristaps 41: };
1.1 kristaps 42:
1.151 schwarze 43: static void blk_full(MACRO_PROT_ARGS);
44: static void blk_exp_close(MACRO_PROT_ARGS);
45: static void blk_part_exp(MACRO_PROT_ARGS);
46: static void blk_part_imp(MACRO_PROT_ARGS);
47: static void ctx_synopsis(MACRO_PROT_ARGS);
48: static void in_line_eoln(MACRO_PROT_ARGS);
49: static void in_line_argn(MACRO_PROT_ARGS);
50: static void in_line(MACRO_PROT_ARGS);
51: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 52:
1.150 schwarze 53: static void dword(struct mdoc *, int, int, const char *,
1.123 schwarze 54: enum mdelim, int);
1.150 schwarze 55: static void append_delims(struct mdoc *, int, int *, char *);
1.58 kristaps 56: static enum mdoct lookup(enum mdoct, const char *);
1.153 schwarze 57: static int macro_or_word(MACRO_PROT_ARGS, int);
1.85 schwarze 58: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 59: struct mdoc *, int, int);
1.154 ! schwarze 60: static int parse_rest(struct mdoc *, enum mdoct,
! 61: int, int *, char *);
1.131 schwarze 62: static enum mdoct rew_alt(enum mdoct);
63: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.53 kristaps 64: const struct mdoc_node *);
1.149 schwarze 65: static void rew_elem(struct mdoc *, enum mdoct);
66: static void rew_last(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
1.58 kristaps 248: lookup(enum mdoct from, 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);
254: if (res != MDOC_MAX && mdoc_macros[res].flags & MDOC_CALLABLE)
255: return(res);
256: }
1.1 kristaps 257: return(MDOC_MAX);
258: }
259:
1.149 schwarze 260: static void
1.32 kristaps 261: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 262: {
1.100 kristaps 263: struct mdoc_node *n, *np;
1.1 kristaps 264:
265: assert(to);
266: mdoc->next = MDOC_NEXT_SIBLING;
267: while (mdoc->last != to) {
1.100 kristaps 268: /*
269: * Save the parent here, because we may delete the
1.119 schwarze 270: * mdoc->last node in the post-validation phase and reset
271: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 272: * out to be lost.
273: */
274: np = mdoc->last->parent;
1.149 schwarze 275: mdoc_valid_post(mdoc);
1.99 kristaps 276: n = mdoc->last;
1.100 kristaps 277: mdoc->last = np;
1.1 kristaps 278: assert(mdoc->last);
1.99 kristaps 279: mdoc->last->last = n;
1.1 kristaps 280: }
1.149 schwarze 281: mdoc_valid_post(mdoc);
1.1 kristaps 282: }
283:
1.32 kristaps 284: /*
1.84 schwarze 285: * For a block closing macro, return the corresponding opening one.
286: * Otherwise, return the macro itself.
1.32 kristaps 287: */
1.47 kristaps 288: static enum mdoct
289: rew_alt(enum mdoct tok)
1.1 kristaps 290: {
291: switch (tok) {
1.131 schwarze 292: case MDOC_Ac:
1.1 kristaps 293: return(MDOC_Ao);
1.131 schwarze 294: case MDOC_Bc:
1.1 kristaps 295: return(MDOC_Bo);
1.131 schwarze 296: case MDOC_Brc:
1.1 kristaps 297: return(MDOC_Bro);
1.131 schwarze 298: case MDOC_Dc:
1.1 kristaps 299: return(MDOC_Do);
1.131 schwarze 300: case MDOC_Ec:
1.1 kristaps 301: return(MDOC_Eo);
1.131 schwarze 302: case MDOC_Ed:
1.1 kristaps 303: return(MDOC_Bd);
1.131 schwarze 304: case MDOC_Ef:
1.1 kristaps 305: return(MDOC_Bf);
1.131 schwarze 306: case MDOC_Ek:
1.1 kristaps 307: return(MDOC_Bk);
1.131 schwarze 308: case MDOC_El:
1.1 kristaps 309: return(MDOC_Bl);
1.131 schwarze 310: case MDOC_Fc:
1.1 kristaps 311: return(MDOC_Fo);
1.131 schwarze 312: case MDOC_Oc:
1.1 kristaps 313: return(MDOC_Oo);
1.131 schwarze 314: case MDOC_Pc:
1.1 kristaps 315: return(MDOC_Po);
1.131 schwarze 316: case MDOC_Qc:
1.1 kristaps 317: return(MDOC_Qo);
1.131 schwarze 318: case MDOC_Re:
1.1 kristaps 319: return(MDOC_Rs);
1.131 schwarze 320: case MDOC_Sc:
1.1 kristaps 321: return(MDOC_So);
1.131 schwarze 322: case MDOC_Xc:
1.1 kristaps 323: return(MDOC_Xo);
324: default:
1.84 schwarze 325: return(tok);
1.1 kristaps 326: }
327: /* NOTREACHED */
328: }
329:
1.84 schwarze 330: /*
331: * Rewinding to tok, how do we have to handle *p?
332: * REWIND_NONE: *p would delimit tok, but no tok scope is open
333: * inside *p, so there is no need to rewind anything at all.
334: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
335: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 336: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 337: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
338: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 339: */
1.51 kristaps 340: static enum rew
1.131 schwarze 341: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.47 kristaps 342: const struct mdoc_node *p)
1.1 kristaps 343: {
344:
1.86 schwarze 345: /*
346: * No matching token, no delimiting block, no broken block.
347: * This can happen when full implicit macros are called for
348: * the first time but try to rewind their previous
349: * instance anyway.
350: */
1.1 kristaps 351: if (MDOC_ROOT == p->type)
1.84 schwarze 352: return(MDOC_BLOCK == type &&
353: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
354: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 355:
356: /*
1.131 schwarze 357: * When starting to rewind, skip plain text
1.86 schwarze 358: * and nodes that have already been rewound.
359: */
1.84 schwarze 360: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
361: return(REWIND_MORE);
362:
1.86 schwarze 363: /*
364: * The easiest case: Found a matching token.
365: * This applies to both blocks and elements.
366: */
1.84 schwarze 367: tok = rew_alt(tok);
368: if (tok == p->tok)
369: return(p->end ? REWIND_NONE :
370: type == p->type ? REWIND_THIS : REWIND_MORE);
371:
1.86 schwarze 372: /*
373: * While elements do require rewinding for themselves,
374: * they never affect rewinding of other nodes.
375: */
1.84 schwarze 376: if (MDOC_ELEM == p->type)
377: return(REWIND_MORE);
1.1 kristaps 378:
1.86 schwarze 379: /*
380: * Blocks delimited by our target token get REWIND_MORE.
1.131 schwarze 381: * Blocks delimiting our target token get REWIND_NONE.
1.86 schwarze 382: */
1.1 kristaps 383: switch (tok) {
1.131 schwarze 384: case MDOC_Bl:
1.84 schwarze 385: if (MDOC_It == p->tok)
386: return(REWIND_MORE);
1.1 kristaps 387: break;
1.131 schwarze 388: case MDOC_It:
1.1 kristaps 389: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 390: return(REWIND_NONE);
1.1 kristaps 391: break;
1.84 schwarze 392: /*
393: * XXX Badly nested block handling still fails badly
394: * when one block is breaking two blocks of the same type.
395: * This is an incomplete and extremely ugly workaround,
396: * required to let the OpenBSD tree build.
397: */
1.131 schwarze 398: case MDOC_Oo:
1.84 schwarze 399: if (MDOC_Op == p->tok)
400: return(REWIND_MORE);
1.1 kristaps 401: break;
1.131 schwarze 402: case MDOC_Nm:
1.88 schwarze 403: return(REWIND_NONE);
1.131 schwarze 404: case MDOC_Nd:
1.19 kristaps 405: /* FALLTHROUGH */
1.131 schwarze 406: case MDOC_Ss:
1.1 kristaps 407: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 408: return(REWIND_NONE);
1.1 kristaps 409: /* FALLTHROUGH */
1.131 schwarze 410: case MDOC_Sh:
1.138 schwarze 411: if (MDOC_ROOT == p->parent->type)
412: return(REWIND_THIS);
1.84 schwarze 413: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
414: MDOC_Sh == p->tok)
415: return(REWIND_MORE);
1.1 kristaps 416: break;
417: default:
418: break;
419: }
420:
1.86 schwarze 421: /*
422: * Default block rewinding rules.
1.88 schwarze 423: * In particular, always skip block end markers,
424: * and let all blocks rewind Nm children.
1.146 schwarze 425: * Do not warn again when closing a block,
426: * since closing the body already warned.
1.86 schwarze 427: */
1.88 schwarze 428: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.146 schwarze 429: MDOC_BLOCK == type || (MDOC_BLOCK == p->type &&
1.86 schwarze 430: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
431: return(REWIND_MORE);
432:
433: /*
1.98 kristaps 434: * By default, closing out full blocks
435: * forces closing of broken explicit blocks,
436: * while closing out partial blocks
437: * allows delayed rewinding by default.
1.86 schwarze 438: */
1.98 kristaps 439: return (&blk_full == mdoc_macros[tok].fp ?
440: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 441: }
442:
1.149 schwarze 443: static void
1.47 kristaps 444: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 445: {
446: struct mdoc_node *n;
447:
448: n = mdoc->last;
449: if (MDOC_ELEM != n->type)
450: n = n->parent;
451: assert(MDOC_ELEM == n->type);
452: assert(tok == n->tok);
1.149 schwarze 453: rew_last(mdoc, n);
1.1 kristaps 454: }
455:
1.83 schwarze 456: /*
457: * We are trying to close a block identified by tok,
458: * but the child block *broken is still open.
459: * Thus, postpone closing the tok block
460: * until the rew_sub call closing *broken.
461: */
462: static int
463: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.119 schwarze 464: struct mdoc *mdoc, int line, int ppos)
1.83 schwarze 465: {
466: struct mdoc_node *breaker;
467:
468: /*
469: * Iterate backwards, searching for the block matching tok,
470: * that is, the block breaking the *broken block.
471: */
472: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
473:
474: /*
475: * If the *broken block had already been broken before
476: * and we encounter its breaker, make the tok block
477: * pending on the inner breaker.
478: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
479: * becomes "[A broken=[B [C->B B] tok=A] C]"
480: * and finally "[A [B->A [C->B B] A] C]".
481: */
482: if (breaker == broken->pending) {
483: broken = breaker;
484: continue;
485: }
486:
1.84 schwarze 487: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 488: continue;
489: if (MDOC_BODY == broken->type)
490: broken = broken->parent;
491:
492: /*
493: * Found the breaker.
494: * If another, outer breaker is already pending on
495: * the *broken block, we must not clobber the link
496: * to the outer breaker, but make it pending on the
497: * new, now inner breaker.
498: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
499: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
500: * and finally "[A [B->A [C->B A] B] C]".
501: */
502: if (broken->pending) {
503: struct mdoc_node *taker;
504:
505: /*
506: * If the breaker had also been broken before,
507: * it cannot take on the outer breaker itself,
508: * but must hand it on to its own breakers.
509: * Graphically, this is the following situation:
510: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
511: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
512: */
513: taker = breaker;
514: while (taker->pending)
515: taker = taker->pending;
516: taker->pending = broken->pending;
517: }
518: broken->pending = breaker;
1.137 schwarze 519: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.131 schwarze 520: "%s breaks %s", mdoc_macronames[tok],
521: mdoc_macronames[broken->tok]);
1.83 schwarze 522: return(1);
523: }
524:
525: /*
526: * Found no matching block for tok.
527: * Are you trying to close a block that is not open?
528: */
529: return(0);
530: }
531:
1.150 schwarze 532: static void
1.131 schwarze 533: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 534: enum mdoct tok, int line, int ppos)
1.1 kristaps 535: {
536: struct mdoc_node *n;
537:
1.119 schwarze 538: n = mdoc->last;
1.84 schwarze 539: while (n) {
540: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 541: case REWIND_NONE:
1.150 schwarze 542: return;
1.131 schwarze 543: case REWIND_THIS:
1.124 schwarze 544: n->lastline = line -
1.150 schwarze 545: (mdoc->flags & MDOC_NEWLINE &&
546: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.84 schwarze 547: break;
1.131 schwarze 548: case REWIND_FORCE:
1.137 schwarze 549: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.131 schwarze 550: line, ppos, "%s breaks %s",
551: mdoc_macronames[tok],
552: mdoc_macronames[n->tok]);
1.98 kristaps 553: /* FALLTHROUGH */
1.131 schwarze 554: case REWIND_MORE:
1.124 schwarze 555: n->lastline = line -
1.150 schwarze 556: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.84 schwarze 557: n = n->parent;
558: continue;
1.131 schwarze 559: case REWIND_LATER:
1.119 schwarze 560: if (make_pending(n, tok, mdoc, line, ppos) ||
1.150 schwarze 561: t != MDOC_BLOCK)
562: return;
1.98 kristaps 563: /* FALLTHROUGH */
1.131 schwarze 564: case REWIND_ERROR:
1.137 schwarze 565: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
566: mdoc->parse, line, ppos,
567: mdoc_macronames[tok]);
1.150 schwarze 568: return;
1.32 kristaps 569: }
1.84 schwarze 570: break;
1.1 kristaps 571: }
572: assert(n);
1.149 schwarze 573: rew_last(mdoc, n);
1.47 kristaps 574:
575: /*
1.83 schwarze 576: * The current block extends an enclosing block.
577: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 578: */
1.150 schwarze 579: while ((n = n->pending) != NULL) {
1.149 schwarze 580: rew_last(mdoc, n);
1.150 schwarze 581: if (n->type == MDOC_HEAD)
582: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
1.47 kristaps 583: }
1.1 kristaps 584: }
585:
1.105 kristaps 586: /*
587: * Allocate a word and check whether it's punctuation or not.
588: * Punctuation consists of those tokens found in mdoc_isdelim().
589: */
1.150 schwarze 590: static void
1.123 schwarze 591: dword(struct mdoc *mdoc, int line, int col, const char *p,
592: enum mdelim d, int may_append)
1.105 kristaps 593: {
1.131 schwarze 594:
1.150 schwarze 595: if (d == DELIM_MAX)
1.105 kristaps 596: d = mdoc_isdelim(p);
597:
1.123 schwarze 598: if (may_append &&
1.150 schwarze 599: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
600: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
601: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 602: mdoc_word_append(mdoc, p);
1.150 schwarze 603: return;
1.123 schwarze 604: }
605:
1.150 schwarze 606: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 607:
1.108 schwarze 608: /*
1.144 schwarze 609: * If the word consists of a bare delimiter,
610: * flag the new node accordingly,
611: * unless doing so was vetoed by the invoking macro.
612: * Always clear the veto, it is only valid for one word.
1.108 schwarze 613: */
614:
1.144 schwarze 615: if (d == DELIM_OPEN)
616: mdoc->last->flags |= MDOC_DELIMO;
617: else if (d == DELIM_CLOSE &&
618: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 619: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 620: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 621: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 622: }
1.1 kristaps 623:
1.150 schwarze 624: static void
1.119 schwarze 625: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 626: {
1.153 schwarze 627: char *p;
1.66 kristaps 628: int la;
1.1 kristaps 629:
1.150 schwarze 630: if (buf[*pos] == '\0')
631: return;
1.1 kristaps 632:
633: for (;;) {
1.66 kristaps 634: la = *pos;
1.153 schwarze 635: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 636: break;
1.123 schwarze 637: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 638:
639: /*
640: * If we encounter end-of-sentence symbols, then trigger
641: * the double-space.
642: *
1.109 kristaps 643: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 644: * the last symbol, such that `. )' will cause the
645: * correct double-spacing. However, (1) groff isn't
646: * smart enough to do this and (2) it would require
647: * knowing which symbols break this behaviour, for
1.109 kristaps 648: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 649: */
1.150 schwarze 650:
1.127 schwarze 651: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 652: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 653: }
654: }
655:
656: /*
1.153 schwarze 657: * Parse one word.
658: * If it is a macro, call it and return 1.
659: * Otherwise, allocate it and return 0.
660: */
661: static int
662: macro_or_word(MACRO_PROT_ARGS, int parsed)
663: {
664: char *p;
665: enum mdoct ntok;
666:
667: p = buf + ppos;
668: ntok = MDOC_MAX;
669: if (mdoc->flags & MDOC_PHRASELIT)
670: /* nothing */;
671: else if (*p == '"')
672: p++;
673: else if (parsed)
674: ntok = lookup(tok, p);
675:
676: if (ntok == MDOC_MAX) {
677: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
678: mdoc_macros[tok].flags & MDOC_JOIN);
679: return(0);
680: } else {
681: if (mdoc_macros[tok].fp == in_line_eoln)
682: rew_elem(mdoc, tok);
683: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
684: if (tok == MDOC_MAX)
685: append_delims(mdoc, line, pos, buf);
686: return(1);
687: }
688: }
689:
690: /*
1.131 schwarze 691: * Close out block partial/full explicit.
1.1 kristaps 692: */
1.151 schwarze 693: static void
1.1 kristaps 694: blk_exp_close(MACRO_PROT_ARGS)
695: {
1.83 schwarze 696: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 697: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 698: struct mdoc_node *later; /* A sub-block starting later. */
699: struct mdoc_node *n; /* For searching backwards. */
700:
1.131 schwarze 701: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 702: enum margserr ac;
1.83 schwarze 703: enum mdoct atok, ntok;
1.1 kristaps 704: char *p;
705:
1.119 schwarze 706: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 707:
1.1 kristaps 708: switch (tok) {
1.131 schwarze 709: case MDOC_Ec:
1.1 kristaps 710: maxargs = 1;
711: break;
1.131 schwarze 712: case MDOC_Ek:
1.125 schwarze 713: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 714: /* FALLTHROUGH */
1.1 kristaps 715: default:
716: maxargs = 0;
717: break;
718: }
719:
1.83 schwarze 720: /*
721: * Search backwards for beginnings of blocks,
722: * both of our own and of pending sub-blocks.
723: */
1.151 schwarze 724:
1.83 schwarze 725: atok = rew_alt(tok);
1.148 schwarze 726: body = endbody = later = NULL;
1.119 schwarze 727: for (n = mdoc->last; n; n = n->parent) {
1.150 schwarze 728: if (n->flags & MDOC_VALID)
1.83 schwarze 729: continue;
730:
731: /* Remember the start of our own body. */
1.151 schwarze 732:
1.150 schwarze 733: if (n->type == MDOC_BODY && atok == n->tok) {
734: if (n->end == ENDBODY_NOT)
1.83 schwarze 735: body = n;
736: continue;
737: }
738:
1.150 schwarze 739: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 740: continue;
741: if (atok == n->tok) {
742: assert(body);
743:
744: /*
745: * Found the start of our own block.
746: * When there is no pending sub block,
747: * just proceed to closing out.
748: */
1.151 schwarze 749:
1.150 schwarze 750: if (later == NULL)
1.83 schwarze 751: break;
752:
1.131 schwarze 753: /*
1.83 schwarze 754: * When there is a pending sub block,
755: * postpone closing out the current block
756: * until the rew_sub() closing out the sub-block.
757: */
1.151 schwarze 758:
1.119 schwarze 759: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 760:
761: /*
762: * Mark the place where the formatting - but not
763: * the scope - of the current block ends.
764: */
1.151 schwarze 765:
1.150 schwarze 766: mdoc_endbody_alloc(mdoc, line, ppos,
767: atok, body, ENDBODY_SPACE);
1.151 schwarze 768:
769: /*
770: * If a block closing macro taking arguments
771: * breaks another block, put the arguments
772: * into the end marker and remeber the
773: * end marker in order to close it out.
774: */
775:
1.148 schwarze 776: if (maxargs) {
777: endbody = mdoc->last;
778: mdoc->next = MDOC_NEXT_CHILD;
779: }
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:
1.83 schwarze 789: if (later &&
1.150 schwarze 790: mdoc_macros[later->tok].flags & MDOC_EXPLICIT)
1.83 schwarze 791: continue;
1.150 schwarze 792: if (n->tok != MDOC_It)
1.83 schwarze 793: later = n;
794: }
1.151 schwarze 795: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1.83 schwarze 796:
1.150 schwarze 797: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
798: if (buf[*pos] != '\0')
1.136 schwarze 799: mandoc_vmsg(MANDOCERR_ARG_SKIP,
800: mdoc->parse, line, ppos,
801: "%s %s", mdoc_macronames[tok],
802: buf + *pos);
1.150 schwarze 803: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.151 schwarze 804: return;
1.1 kristaps 805: }
806:
1.148 schwarze 807: if (maxargs && endbody == NULL) {
808: if (n == NULL) {
809: /*
810: * Stray .Ec without previous .Eo:
811: * Break the output line, ignore any arguments.
812: */
1.150 schwarze 813: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 814: rew_elem(mdoc, MDOC_br);
1.150 schwarze 815: } else
816: mdoc_tail_alloc(mdoc, line, ppos, atok);
1.148 schwarze 817: }
1.1 kristaps 818:
1.148 schwarze 819: flushed = n == NULL;
820: for (j = 0; ; j++) {
1.1 kristaps 821: lastarg = *pos;
822:
823: if (j == maxargs && ! flushed) {
1.150 schwarze 824: if (endbody == NULL)
825: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
826: else
1.149 schwarze 827: rew_last(mdoc, endbody);
1.1 kristaps 828: flushed = 1;
829: }
830:
1.119 schwarze 831: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 832: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 833: break;
834:
1.150 schwarze 835: ntok = ac == ARGS_QWORD ? MDOC_MAX : lookup(tok, p);
1.54 kristaps 836:
1.150 schwarze 837: if (ntok == MDOC_MAX) {
838: dword(mdoc, line, lastarg, p, DELIM_MAX,
839: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 840: continue;
841: }
1.1 kristaps 842:
1.54 kristaps 843: if ( ! flushed) {
1.150 schwarze 844: if (endbody == NULL)
845: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
846: else
1.149 schwarze 847: rew_last(mdoc, endbody);
1.54 kristaps 848: flushed = 1;
849: }
1.122 schwarze 850: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 851: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 852: break;
1.1 kristaps 853: }
854:
1.149 schwarze 855: if ( ! flushed) {
1.150 schwarze 856: if (endbody == NULL)
857: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
858: else
1.149 schwarze 859: rew_last(mdoc, endbody);
860: }
1.150 schwarze 861: if (nl)
862: append_delims(mdoc, line, pos, buf);
1.1 kristaps 863: }
864:
1.151 schwarze 865: static void
1.1 kristaps 866: in_line(MACRO_PROT_ARGS)
867: {
1.144 schwarze 868: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 869: enum mdoct ntok;
1.55 kristaps 870: enum margserr ac;
1.67 schwarze 871: enum mdelim d;
1.53 kristaps 872: struct mdoc_arg *arg;
873: char *p;
1.1 kristaps 874:
1.119 schwarze 875: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 876:
1.4 kristaps 877: /*
878: * Whether we allow ignored elements (those without content,
879: * usually because of reserved words) to squeak by.
880: */
1.45 kristaps 881:
1.4 kristaps 882: switch (tok) {
1.131 schwarze 883: case MDOC_An:
1.26 kristaps 884: /* FALLTHROUGH */
1.131 schwarze 885: case MDOC_Ar:
1.4 kristaps 886: /* FALLTHROUGH */
1.131 schwarze 887: case MDOC_Fl:
1.4 kristaps 888: /* FALLTHROUGH */
1.131 schwarze 889: case MDOC_Mt:
1.12 kristaps 890: /* FALLTHROUGH */
1.131 schwarze 891: case MDOC_Nm:
1.26 kristaps 892: /* FALLTHROUGH */
1.131 schwarze 893: case MDOC_Pa:
1.4 kristaps 894: nc = 1;
895: break;
896: default:
897: nc = 0;
898: break;
899: }
900:
1.152 schwarze 901: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 902:
1.144 schwarze 903: d = DELIM_NONE;
904: firstarg = 1;
1.142 schwarze 905: mayopen = 1;
1.70 kristaps 906: for (cnt = scope = 0;; ) {
1.1 kristaps 907: la = *pos;
1.119 schwarze 908: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 909:
1.144 schwarze 910: /*
911: * At the end of a macro line,
912: * opening delimiters do not suppress spacing.
913: */
914:
915: if (ac == ARGS_EOLN) {
916: if (d == DELIM_OPEN)
917: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 918: break;
1.144 schwarze 919: }
920:
921: /*
922: * The rest of the macro line is only punctuation,
923: * to be handled by append_delims().
924: * If there were no other arguments,
925: * do not allow the first one to suppress spacing,
926: * even if it turns out to be a closing one.
927: */
928:
929: if (ac == ARGS_PUNCT) {
930: if (cnt == 0 && nc == 0)
931: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 932: break;
1.144 schwarze 933: }
1.1 kristaps 934:
1.145 schwarze 935: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
936: MDOC_MAX : lookup(tok, p);
1.1 kristaps 937:
1.131 schwarze 938: /*
1.4 kristaps 939: * In this case, we've located a submacro and must
940: * execute it. Close out scope, if open. If no
941: * elements have been generated, either create one (nc)
942: * or raise a warning.
943: */
1.1 kristaps 944:
1.150 schwarze 945: if (ntok != MDOC_MAX) {
1.149 schwarze 946: if (scope)
947: rew_elem(mdoc, tok);
1.150 schwarze 948: if (nc && ! cnt) {
949: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 950: rew_last(mdoc, mdoc->last);
1.150 schwarze 951: } else if ( ! nc && ! cnt) {
1.7 kristaps 952: mdoc_argv_free(arg);
1.135 schwarze 953: mandoc_msg(MANDOCERR_MACRO_EMPTY,
954: mdoc->parse, line, ppos,
955: mdoc_macronames[tok]);
1.7 kristaps 956: }
1.151 schwarze 957: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 958: if (nl)
959: append_delims(mdoc, line, pos, buf);
1.151 schwarze 960: return;
1.131 schwarze 961: }
1.1 kristaps 962:
1.131 schwarze 963: /*
1.4 kristaps 964: * Non-quote-enclosed punctuation. Set up our scope, if
965: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 966: * the word.
1.4 kristaps 967: */
1.1 kristaps 968:
1.150 schwarze 969: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 970:
1.70 kristaps 971: if (DELIM_NONE != d) {
972: /*
973: * If we encounter closing punctuation, no word
1.144 schwarze 974: * has been emitted, no scope is open, and we're
1.70 kristaps 975: * allowed to have an empty element, then start
1.142 schwarze 976: * a new scope.
1.70 kristaps 977: */
1.142 schwarze 978: if ((d == DELIM_CLOSE ||
979: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 980: !cnt && !scope && nc && mayopen) {
1.150 schwarze 981: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 982: scope = 1;
1.142 schwarze 983: cnt++;
1.150 schwarze 984: if (tok == MDOC_Nm)
1.142 schwarze 985: mayopen = 0;
1.70 kristaps 986: }
987: /*
988: * Close out our scope, if one is open, before
989: * any punctuation.
990: */
1.149 schwarze 991: if (scope)
992: rew_elem(mdoc, tok);
1.70 kristaps 993: scope = 0;
1.145 schwarze 994: if (tok == MDOC_Fn)
995: mayopen = 0;
1.142 schwarze 996: } else if (mayopen && !scope) {
1.150 schwarze 997: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 998: scope = 1;
1.142 schwarze 999: cnt++;
1.1 kristaps 1000: }
1.105 kristaps 1001:
1.150 schwarze 1002: dword(mdoc, line, la, p, d,
1003: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 1004:
1005: /*
1.144 schwarze 1006: * If the first argument is a closing delimiter,
1007: * do not suppress spacing before it.
1008: */
1009:
1010: if (firstarg && d == DELIM_CLOSE && !nc)
1011: mdoc->last->flags &= ~MDOC_DELIMC;
1012: firstarg = 0;
1013:
1014: /*
1.39 kristaps 1015: * `Fl' macros have their scope re-opened with each new
1016: * word so that the `-' can be added to each one without
1017: * having to parse out spaces.
1018: */
1.150 schwarze 1019: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1020: rew_elem(mdoc, tok);
1.70 kristaps 1021: scope = 0;
1.39 kristaps 1022: }
1.1 kristaps 1023: }
1024:
1.149 schwarze 1025: if (scope)
1026: rew_elem(mdoc, tok);
1.4 kristaps 1027:
1028: /*
1029: * If no elements have been collected and we're allowed to have
1030: * empties (nc), open a scope and close it out. Otherwise,
1031: * raise a warning.
1032: */
1.45 kristaps 1033:
1.150 schwarze 1034: if ( ! cnt) {
1035: if (nc) {
1036: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1037: rew_last(mdoc, mdoc->last);
1038: } else {
1039: mdoc_argv_free(arg);
1040: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1041: line, ppos, mdoc_macronames[tok]);
1042: }
1.7 kristaps 1043: }
1.150 schwarze 1044: if (nl)
1045: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1046: }
1047:
1.151 schwarze 1048: static void
1.1 kristaps 1049: blk_full(MACRO_PROT_ARGS)
1050: {
1.153 schwarze 1051: int la, nl, parsed;
1.1 kristaps 1052: struct mdoc_arg *arg;
1.45 kristaps 1053: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 1054: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 1055: struct mdoc_node *n;
1.59 kristaps 1056: enum margserr ac, lac;
1.1 kristaps 1057: char *p;
1058:
1.119 schwarze 1059: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1060:
1061: /* Skip items outside lists. */
1062:
1063: if (tok == MDOC_It) {
1064: for (n = mdoc->last; n; n = n->parent)
1.141 schwarze 1065: if (n->tok == MDOC_Bl &&
1066: ! (n->flags & MDOC_VALID))
1.138 schwarze 1067: break;
1068: if (n == NULL) {
1069: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1070: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1071: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1072: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1073: return;
1.138 schwarze 1074: }
1075: }
1.63 kristaps 1076:
1.45 kristaps 1077: /* Close out prior implicit scope. */
1.19 kristaps 1078:
1.150 schwarze 1079: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1080: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1081: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1082: }
1083:
1.45 kristaps 1084: /*
1.109 kristaps 1085: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1086: * macro openings. Implicit ones first close out prior scope
1087: * (seen above). Delay opening the head until necessary to
1088: * allow leading punctuation to print. Special consideration
1089: * for `It -column', which has phrase-part syntax instead of
1090: * regular child nodes.
1091: */
1092:
1.152 schwarze 1093: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1094: mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1095: head = body = NULL;
1.115 schwarze 1096:
1097: /*
1098: * Exception: Heads of `It' macros in `-diag' lists are not
1099: * parsed, even though `It' macros in general are parsed.
1100: */
1.151 schwarze 1101:
1.153 schwarze 1102: parsed = tok != MDOC_It ||
1103: mdoc->last->parent->tok != MDOC_Bl ||
1104: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1105:
1.45 kristaps 1106: /*
1107: * The `Nd' macro has all arguments in its body: it's a hybrid
1108: * of block partial-explicit and full-implicit. Stupid.
1109: */
1.19 kristaps 1110:
1.150 schwarze 1111: if (tok == MDOC_Nd) {
1112: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1113: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1114: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1115: }
1116:
1.150 schwarze 1117: if (tok == MDOC_Bk)
1.123 schwarze 1118: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1119:
1.150 schwarze 1120: ac = ARGS_PEND;
1121: for (;;) {
1.45 kristaps 1122: la = *pos;
1.150 schwarze 1123: lac = ac;
1.119 schwarze 1124: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1125: if (ac == ARGS_PUNCT)
1.89 schwarze 1126: break;
1.150 schwarze 1127: if (ac == ARGS_EOLN) {
1128: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1129: break;
1130: /*
1131: * This is necessary: if the last token on a
1132: * line is a `Ta' or tab, then we'll get
1133: * ARGS_EOLN, so we must be smart enough to
1134: * reopen our scope if the last parse was a
1135: * phrase or partial phrase.
1136: */
1.150 schwarze 1137: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1138: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1139: break;
1.75 kristaps 1140: }
1.45 kristaps 1141:
1.131 schwarze 1142: /*
1.73 kristaps 1143: * Emit leading punctuation (i.e., punctuation before
1144: * the MDOC_HEAD) for non-phrase types.
1145: */
1.45 kristaps 1146:
1.150 schwarze 1147: if (head == NULL &&
1148: ac != ARGS_PEND &&
1149: ac != ARGS_PHRASE &&
1150: ac != ARGS_PPHRASE &&
1151: ac != ARGS_QWORD &&
1152: mdoc_isdelim(p) == DELIM_OPEN) {
1153: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1154: continue;
1155: }
1156:
1.74 kristaps 1157: /* Open a head if one hasn't been opened. */
1.45 kristaps 1158:
1.150 schwarze 1159: if (head == NULL)
1160: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1161:
1.150 schwarze 1162: if (ac == ARGS_PHRASE ||
1163: ac == ARGS_PEND ||
1164: ac == ARGS_PPHRASE) {
1.151 schwarze 1165:
1.73 kristaps 1166: /*
1.74 kristaps 1167: * If we haven't opened a body yet, rewind the
1168: * head; if we have, rewind that instead.
1169: */
1170:
1.150 schwarze 1171: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1172: mdoc, tok, line, ppos);
1173: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1174:
1175: /*
1.73 kristaps 1176: * Process phrases: set whether we're in a
1177: * partial-phrase (this effects line handling)
1178: * then call down into the phrase parser.
1179: */
1.74 kristaps 1180:
1.150 schwarze 1181: if (ac == ARGS_PPHRASE)
1.119 schwarze 1182: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1183: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1184: mdoc->flags |= MDOC_PPHRASE;
1.154 ! schwarze 1185: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1186: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1187: continue;
1188: }
1189:
1.153 schwarze 1190: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1191: break;
1.45 kristaps 1192: }
1.1 kristaps 1193:
1.150 schwarze 1194: if (head == NULL)
1195: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1196: if (nl)
1197: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1198: if (body != NULL)
1.77 kristaps 1199: goto out;
1.19 kristaps 1200:
1.47 kristaps 1201: /*
1.49 kristaps 1202: * If there is an open (i.e., unvalidated) sub-block requiring
1203: * explicit close-out, postpone switching the current block from
1204: * head to body until the rew_sub() call closing out that
1205: * sub-block.
1.47 kristaps 1206: */
1.119 schwarze 1207: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1208: if (n->type == MDOC_BLOCK &&
1209: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1210: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1211: n->pending = head;
1.151 schwarze 1212: return;
1.47 kristaps 1213: }
1214: }
1215:
1.45 kristaps 1216: /* Close out scopes to remain in a consistent state. */
1217:
1.150 schwarze 1218: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1219: mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1220: out:
1.150 schwarze 1221: if (mdoc->flags & MDOC_FREECOL) {
1222: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1223: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1224: mdoc->flags &= ~MDOC_FREECOL;
1225: }
1.1 kristaps 1226: }
1227:
1.151 schwarze 1228: static void
1.1 kristaps 1229: blk_part_imp(MACRO_PROT_ARGS)
1230: {
1.63 kristaps 1231: int la, nl;
1.55 kristaps 1232: enum margserr ac;
1.1 kristaps 1233: char *p;
1.43 kristaps 1234: struct mdoc_node *blk; /* saved block context */
1235: struct mdoc_node *body; /* saved body context */
1236: struct mdoc_node *n;
1.1 kristaps 1237:
1.119 schwarze 1238: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1239:
1.43 kristaps 1240: /*
1241: * A macro that spans to the end of the line. This is generally
1242: * (but not necessarily) called as the first macro. The block
1243: * has a head as the immediate child, which is always empty,
1244: * followed by zero or more opening punctuation nodes, then the
1245: * body (which may be empty, depending on the macro), then zero
1246: * or more closing punctuation nodes.
1247: */
1.32 kristaps 1248:
1.150 schwarze 1249: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1250: mdoc_head_alloc(mdoc, line, ppos, tok);
1251: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1.1 kristaps 1252:
1.43 kristaps 1253: /*
1254: * Open the body scope "on-demand", that is, after we've
1255: * processed all our the leading delimiters (open parenthesis,
1256: * etc.).
1257: */
1.1 kristaps 1258:
1.43 kristaps 1259: for (body = NULL; ; ) {
1.32 kristaps 1260: la = *pos;
1.119 schwarze 1261: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1262: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1263: break;
1264:
1.150 schwarze 1265: if (body == NULL && ac != ARGS_QWORD &&
1266: mdoc_isdelim(p) == DELIM_OPEN) {
1267: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1268: continue;
1.123 schwarze 1269: }
1.1 kristaps 1270:
1.150 schwarze 1271: if (body == NULL)
1272: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1273:
1.153 schwarze 1274: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1275: break;
1.1 kristaps 1276: }
1.150 schwarze 1277: if (body == NULL)
1278: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1279:
1.83 schwarze 1280: /*
1281: * If there is an open sub-block requiring explicit close-out,
1282: * postpone closing out the current block
1283: * until the rew_sub() call closing out the sub-block.
1284: */
1.151 schwarze 1285:
1.119 schwarze 1286: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1287: n = n->parent) {
1.150 schwarze 1288: if (n->type == MDOC_BLOCK &&
1289: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1290: ! (n->flags & MDOC_VALID)) {
1.119 schwarze 1291: make_pending(n, tok, mdoc, line, ppos);
1.150 schwarze 1292: mdoc_endbody_alloc(mdoc, line, ppos,
1293: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1294: return;
1.83 schwarze 1295: }
1296: }
1.134 schwarze 1297: assert(n == body);
1.150 schwarze 1298: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1299: if (nl)
1300: append_delims(mdoc, line, pos, buf);
1301: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.117 schwarze 1302:
1303: /* Move trailing .Ns out of scope. */
1304:
1305: for (n = body->child; n && n->next; n = n->next)
1306: /* Do nothing. */ ;
1.150 schwarze 1307: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1308: mdoc_node_relink(mdoc, n);
1.1 kristaps 1309: }
1310:
1.151 schwarze 1311: static void
1.1 kristaps 1312: blk_part_exp(MACRO_PROT_ARGS)
1313: {
1.60 kristaps 1314: int la, nl;
1.55 kristaps 1315: enum margserr ac;
1.43 kristaps 1316: struct mdoc_node *head; /* keep track of head */
1317: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1318: char *p;
1319:
1.119 schwarze 1320: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1321:
1.43 kristaps 1322: /*
1323: * The opening of an explicit macro having zero or more leading
1324: * punctuation nodes; a head with optional single element (the
1325: * case of `Eo'); and a body that may be empty.
1326: */
1.32 kristaps 1327:
1.150 schwarze 1328: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.43 kristaps 1329: for (head = body = NULL; ; ) {
1.32 kristaps 1330: la = *pos;
1.119 schwarze 1331: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1332: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1333: break;
1.43 kristaps 1334:
1335: /* Flush out leading punctuation. */
1336:
1.150 schwarze 1337: if (head == NULL && ac != ARGS_QWORD &&
1338: mdoc_isdelim(p) == DELIM_OPEN) {
1.43 kristaps 1339: assert(NULL == body);
1.150 schwarze 1340: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1341: continue;
1.123 schwarze 1342: }
1.43 kristaps 1343:
1.150 schwarze 1344: if (head == NULL) {
1345: assert(body == NULL);
1346: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1347: }
1348:
1.43 kristaps 1349: /*
1350: * `Eo' gobbles any data into the head, but most other
1351: * macros just immediately close out and begin the body.
1352: */
1353:
1.150 schwarze 1354: if (body == NULL) {
1.43 kristaps 1355: assert(head);
1356: /* No check whether it's a macro! */
1.150 schwarze 1357: if (tok == MDOC_Eo)
1358: dword(mdoc, line, la, p, DELIM_MAX, 0);
1359: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1360: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1361: if (tok == MDOC_Eo)
1.43 kristaps 1362: continue;
1.1 kristaps 1363: }
1.150 schwarze 1364: assert(head != NULL && body != NULL);
1.43 kristaps 1365:
1.153 schwarze 1366: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1367: break;
1.1 kristaps 1368: }
1369:
1.43 kristaps 1370: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1371:
1.150 schwarze 1372: if (head == NULL)
1373: mdoc_head_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1374:
1.150 schwarze 1375: if (body == NULL) {
1376: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1377: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1378: }
1.150 schwarze 1379: if (nl)
1380: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1381: }
1382:
1.151 schwarze 1383: static void
1.1 kristaps 1384: in_line_argn(MACRO_PROT_ARGS)
1385: {
1.60 kristaps 1386: int la, flushed, j, maxargs, nl;
1.55 kristaps 1387: enum margserr ac;
1.53 kristaps 1388: struct mdoc_arg *arg;
1389: char *p;
1390: enum mdoct ntok;
1.1 kristaps 1391:
1.119 schwarze 1392: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1393:
1.46 kristaps 1394: /*
1395: * A line macro that has a fixed number of arguments (maxargs).
1396: * Only open the scope once the first non-leading-punctuation is
1397: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1398: * keep it open until the maximum number of arguments are
1399: * exhausted.
1400: */
1.1 kristaps 1401:
1402: switch (tok) {
1.131 schwarze 1403: case MDOC_Ap:
1.1 kristaps 1404: /* FALLTHROUGH */
1.131 schwarze 1405: case MDOC_Ns:
1.1 kristaps 1406: /* FALLTHROUGH */
1.131 schwarze 1407: case MDOC_Ux:
1.1 kristaps 1408: maxargs = 0;
1409: break;
1.131 schwarze 1410: case MDOC_Bx:
1.101 kristaps 1411: /* FALLTHROUGH */
1.132 schwarze 1412: case MDOC_Es:
1413: /* FALLTHROUGH */
1.131 schwarze 1414: case MDOC_Xr:
1.42 kristaps 1415: maxargs = 2;
1416: break;
1.1 kristaps 1417: default:
1418: maxargs = 1;
1419: break;
1420: }
1421:
1.152 schwarze 1422: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1423:
1.46 kristaps 1424: for (flushed = j = 0; ; ) {
1.32 kristaps 1425: la = *pos;
1.119 schwarze 1426: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1427: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1428: break;
1429:
1.150 schwarze 1430: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1431: ac != ARGS_QWORD && j == 0 &&
1432: mdoc_isdelim(p) == DELIM_OPEN) {
1433: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1434: continue;
1.150 schwarze 1435: } else if (j == 0)
1436: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1437:
1438: if (j == maxargs && ! flushed) {
1.149 schwarze 1439: rew_elem(mdoc, tok);
1.46 kristaps 1440: flushed = 1;
1441: }
1442:
1.150 schwarze 1443: ntok = ac == ARGS_QWORD ? MDOC_MAX : lookup(tok, p);
1.54 kristaps 1444:
1.150 schwarze 1445: if (ntok != MDOC_MAX) {
1.149 schwarze 1446: if ( ! flushed)
1447: rew_elem(mdoc, tok);
1.1 kristaps 1448: flushed = 1;
1.151 schwarze 1449: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1450: j++;
1.1 kristaps 1451: break;
1452: }
1453:
1.150 schwarze 1454: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1455: ac != ARGS_QWORD && ! flushed &&
1456: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1457: rew_elem(mdoc, tok);
1.1 kristaps 1458: flushed = 1;
1459: }
1.42 kristaps 1460:
1.150 schwarze 1461: dword(mdoc, line, la, p, DELIM_MAX,
1462: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1463: j++;
1.1 kristaps 1464: }
1465:
1.150 schwarze 1466: if (j == 0)
1467: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 1468: if ( ! flushed)
1469: rew_elem(mdoc, tok);
1.150 schwarze 1470: if (nl)
1471: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1472: }
1473:
1.151 schwarze 1474: static void
1.1 kristaps 1475: in_line_eoln(MACRO_PROT_ARGS)
1476: {
1.53 kristaps 1477: struct mdoc_arg *arg;
1.1 kristaps 1478:
1.90 schwarze 1479: if (tok == MDOC_Pp)
1.119 schwarze 1480: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1481:
1.152 schwarze 1482: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1483: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 ! schwarze 1484: if (parse_rest(mdoc, tok, line, pos, buf))
! 1485: return;
! 1486: rew_elem(mdoc, tok);
! 1487: }
! 1488:
! 1489: /*
! 1490: * The simplest argument parser available: Parse the remaining
! 1491: * words until the end of the phrase or line and return 0
! 1492: * or until the next macro, call that macro, and return 1.
! 1493: */
! 1494: static int
! 1495: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
! 1496: {
! 1497: int la;
1.1 kristaps 1498:
1499: for (;;) {
1500: la = *pos;
1.153 schwarze 1501: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 ! schwarze 1502: return(0);
1.153 schwarze 1503: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 ! schwarze 1504: return(1);
1.1 kristaps 1505: }
1506: }
1507:
1.151 schwarze 1508: static void
1.41 kristaps 1509: ctx_synopsis(MACRO_PROT_ARGS)
1510: {
1.60 kristaps 1511:
1.151 schwarze 1512: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1513: in_line(mdoc, tok, line, ppos, pos, buf);
1514: else if (tok == MDOC_Nm)
1515: blk_full(mdoc, tok, line, ppos, pos, buf);
1516: else {
1517: assert(tok == MDOC_Vt);
1518: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1519: }
1.1 kristaps 1520: }
1521:
1.24 kristaps 1522: /*
1523: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1524: * They're unusual because they're basically free-form text until a
1525: * macro is encountered.
1526: */
1.151 schwarze 1527: static void
1.75 kristaps 1528: phrase_ta(MACRO_PROT_ARGS)
1529: {
1.121 schwarze 1530: struct mdoc_node *n;
1.75 kristaps 1531:
1.121 schwarze 1532: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1533:
1.121 schwarze 1534: n = mdoc->last;
1.151 schwarze 1535: while (n != NULL && n->tok != MDOC_Bl)
1.121 schwarze 1536: n = n->parent;
1.151 schwarze 1537: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1538: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1539: line, ppos, "Ta");
1.151 schwarze 1540: return;
1.121 schwarze 1541: }
1.75 kristaps 1542:
1.121 schwarze 1543: /* Advance to the next column. */
1.150 schwarze 1544:
1545: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1546: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 ! schwarze 1547: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1548: }
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