Annotation of mandoc/mdoc_macro.c, Revision 1.165
1.165 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.164 2015/02/01 23:56:37 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,
1.98 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 *);
1.155 schwarze 56: static enum mdoct lookup(struct mdoc *, enum mdoct,
57: int, int, const char *);
1.153 schwarze 58: static int macro_or_word(MACRO_PROT_ARGS, int);
1.85 schwarze 59: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 60: struct mdoc *, int, int);
1.154 schwarze 61: static int parse_rest(struct mdoc *, enum mdoct,
62: int, int *, char *);
1.131 schwarze 63: static enum mdoct rew_alt(enum mdoct);
64: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.53 kristaps 65: const struct mdoc_node *);
1.149 schwarze 66: static void rew_elem(struct mdoc *, enum mdoct);
67: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.150 schwarze 68: static void rew_sub(enum mdoc_type, struct mdoc *,
1.53 kristaps 69: enum mdoct, int, int);
1.1 kristaps 70:
71: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 72: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 73: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
74: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
75: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 76: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
77: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
78: { in_line_eoln, 0 }, /* Pp */
79: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
80: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 81: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 82: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 83: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 84: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
85: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 94: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
96: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 100: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 101: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 102: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
103: { blk_full, MDOC_JOIN }, /* Nd */
104: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 105: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 107: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
108: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 109: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 110: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 111: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 112: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 113: { in_line_eoln, MDOC_JOIN }, /* %A */
114: { in_line_eoln, MDOC_JOIN }, /* %B */
115: { in_line_eoln, MDOC_JOIN }, /* %D */
116: { in_line_eoln, MDOC_JOIN }, /* %I */
117: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 118: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 119: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 120: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 121: { in_line_eoln, MDOC_JOIN }, /* %R */
122: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 123: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 124: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
125: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
128: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 129: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 130: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
131: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
132: { blk_full, MDOC_EXPLICIT }, /* Bf */
133: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
134: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
135: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
138: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 139: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
140: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
141: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
142: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
143: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
144: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
145: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
146: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
148: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 149: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 150: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 151: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
152: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 153: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
154: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 155: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
156: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 157: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 158: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
161: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
162: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
163: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
164: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
165: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
166: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 168: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 169: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
171: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
173: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 174: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 175: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
176: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 178: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 179: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
180: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 181: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
182: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
183: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
184: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
185: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
186: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 188: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 189: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 190: { in_line_eoln, 0 }, /* Bt */
191: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 192: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 193: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 194: { in_line, 0 }, /* Lb */
1.123 schwarze 195: { in_line_eoln, 0 }, /* Lp */
196: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
197: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
198: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
199: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
200: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
201: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
202: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
203: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 204: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
205: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 206: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 207: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 208: { in_line_eoln, 0 }, /* br */
209: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 210: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 211: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 212: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 213: };
214:
215: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
216:
217:
218: /*
219: * This is called at the end of parsing. It must traverse up the tree,
220: * closing out open [implicit] scopes. Obviously, open explicit scopes
221: * are errors.
222: */
1.151 schwarze 223: void
1.119 schwarze 224: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 225: {
226: struct mdoc_node *n;
227:
228: /* Scan for open explicit scopes. */
229:
1.151 schwarze 230: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 231: mdoc->last->parent : mdoc->last;
1.1 kristaps 232:
1.94 schwarze 233: for ( ; n; n = n->parent)
1.151 schwarze 234: if (n->type == MDOC_BLOCK &&
235: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 236: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
237: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 238:
1.32 kristaps 239: /* Rewind to the first. */
240:
1.149 schwarze 241: rew_last(mdoc, mdoc->first);
1.1 kristaps 242: }
243:
1.32 kristaps 244: /*
1.153 schwarze 245: * Look up the macro at *p called by "from",
246: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 247: */
1.53 kristaps 248: static enum mdoct
1.155 schwarze 249: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28 kristaps 250: {
1.58 kristaps 251: enum mdoct res;
1.1 kristaps 252:
1.153 schwarze 253: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
254: res = mdoc_hash_find(p);
1.155 schwarze 255: if (res != MDOC_MAX) {
256: if (mdoc_macros[res].flags & MDOC_CALLABLE)
257: return(res);
258: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
259: mandoc_msg(MANDOCERR_MACRO_CALL,
260: mdoc->parse, line, ppos, p);
261: }
1.153 schwarze 262: }
1.1 kristaps 263: return(MDOC_MAX);
264: }
265:
1.149 schwarze 266: static void
1.32 kristaps 267: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 268: {
1.100 kristaps 269: struct mdoc_node *n, *np;
1.1 kristaps 270:
271: assert(to);
272: mdoc->next = MDOC_NEXT_SIBLING;
273: while (mdoc->last != to) {
1.100 kristaps 274: /*
275: * Save the parent here, because we may delete the
1.119 schwarze 276: * mdoc->last node in the post-validation phase and reset
277: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 278: * out to be lost.
279: */
280: np = mdoc->last->parent;
1.149 schwarze 281: mdoc_valid_post(mdoc);
1.99 kristaps 282: n = mdoc->last;
1.100 kristaps 283: mdoc->last = np;
1.1 kristaps 284: assert(mdoc->last);
1.99 kristaps 285: mdoc->last->last = n;
1.1 kristaps 286: }
1.149 schwarze 287: mdoc_valid_post(mdoc);
1.1 kristaps 288: }
289:
1.32 kristaps 290: /*
1.84 schwarze 291: * For a block closing macro, return the corresponding opening one.
292: * Otherwise, return the macro itself.
1.32 kristaps 293: */
1.47 kristaps 294: static enum mdoct
295: rew_alt(enum mdoct tok)
1.1 kristaps 296: {
297: switch (tok) {
1.131 schwarze 298: case MDOC_Ac:
1.1 kristaps 299: return(MDOC_Ao);
1.131 schwarze 300: case MDOC_Bc:
1.1 kristaps 301: return(MDOC_Bo);
1.131 schwarze 302: case MDOC_Brc:
1.1 kristaps 303: return(MDOC_Bro);
1.131 schwarze 304: case MDOC_Dc:
1.1 kristaps 305: return(MDOC_Do);
1.131 schwarze 306: case MDOC_Ec:
1.1 kristaps 307: return(MDOC_Eo);
1.131 schwarze 308: case MDOC_Ed:
1.1 kristaps 309: return(MDOC_Bd);
1.131 schwarze 310: case MDOC_Ef:
1.1 kristaps 311: return(MDOC_Bf);
1.131 schwarze 312: case MDOC_Ek:
1.1 kristaps 313: return(MDOC_Bk);
1.131 schwarze 314: case MDOC_El:
1.1 kristaps 315: return(MDOC_Bl);
1.131 schwarze 316: case MDOC_Fc:
1.1 kristaps 317: return(MDOC_Fo);
1.131 schwarze 318: case MDOC_Oc:
1.1 kristaps 319: return(MDOC_Oo);
1.131 schwarze 320: case MDOC_Pc:
1.1 kristaps 321: return(MDOC_Po);
1.131 schwarze 322: case MDOC_Qc:
1.1 kristaps 323: return(MDOC_Qo);
1.131 schwarze 324: case MDOC_Re:
1.1 kristaps 325: return(MDOC_Rs);
1.131 schwarze 326: case MDOC_Sc:
1.1 kristaps 327: return(MDOC_So);
1.131 schwarze 328: case MDOC_Xc:
1.1 kristaps 329: return(MDOC_Xo);
330: default:
1.84 schwarze 331: return(tok);
1.1 kristaps 332: }
333: /* NOTREACHED */
334: }
335:
1.84 schwarze 336: /*
337: * Rewinding to tok, how do we have to handle *p?
338: * REWIND_NONE: *p would delimit tok, but no tok scope is open
339: * inside *p, so there is no need to rewind anything at all.
340: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
341: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 342: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 343: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
344: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 345: */
1.51 kristaps 346: static enum rew
1.131 schwarze 347: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.47 kristaps 348: const struct mdoc_node *p)
1.1 kristaps 349: {
350:
1.86 schwarze 351: /*
352: * No matching token, no delimiting block, no broken block.
353: * This can happen when full implicit macros are called for
354: * the first time but try to rewind their previous
355: * instance anyway.
356: */
1.1 kristaps 357: if (MDOC_ROOT == p->type)
1.84 schwarze 358: return(MDOC_BLOCK == type &&
359: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
360: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 361:
362: /*
1.131 schwarze 363: * When starting to rewind, skip plain text
1.86 schwarze 364: * and nodes that have already been rewound.
365: */
1.161 schwarze 366: if (p->type == MDOC_TEXT || p->flags & (MDOC_VALID | MDOC_BREAK))
1.84 schwarze 367: return(REWIND_MORE);
368:
1.86 schwarze 369: /*
370: * The easiest case: Found a matching token.
371: * This applies to both blocks and elements.
372: */
1.84 schwarze 373: tok = rew_alt(tok);
374: if (tok == p->tok)
375: return(p->end ? REWIND_NONE :
376: type == p->type ? REWIND_THIS : REWIND_MORE);
377:
1.86 schwarze 378: /*
379: * While elements do require rewinding for themselves,
380: * they never affect rewinding of other nodes.
381: */
1.84 schwarze 382: if (MDOC_ELEM == p->type)
383: return(REWIND_MORE);
1.1 kristaps 384:
1.86 schwarze 385: /*
386: * Blocks delimited by our target token get REWIND_MORE.
1.131 schwarze 387: * Blocks delimiting our target token get REWIND_NONE.
1.86 schwarze 388: */
1.1 kristaps 389: switch (tok) {
1.131 schwarze 390: case MDOC_Bl:
1.84 schwarze 391: if (MDOC_It == p->tok)
392: return(REWIND_MORE);
1.1 kristaps 393: break;
1.131 schwarze 394: case MDOC_It:
1.1 kristaps 395: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 396: return(REWIND_NONE);
1.1 kristaps 397: break;
1.84 schwarze 398: /*
399: * XXX Badly nested block handling still fails badly
400: * when one block is breaking two blocks of the same type.
401: * This is an incomplete and extremely ugly workaround,
402: * required to let the OpenBSD tree build.
403: */
1.131 schwarze 404: case MDOC_Oo:
1.84 schwarze 405: if (MDOC_Op == p->tok)
406: return(REWIND_MORE);
1.1 kristaps 407: break;
1.131 schwarze 408: case MDOC_Nm:
1.88 schwarze 409: return(REWIND_NONE);
1.131 schwarze 410: case MDOC_Nd:
1.19 kristaps 411: /* FALLTHROUGH */
1.131 schwarze 412: case MDOC_Ss:
1.1 kristaps 413: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 414: return(REWIND_NONE);
1.1 kristaps 415: /* FALLTHROUGH */
1.131 schwarze 416: case MDOC_Sh:
1.138 schwarze 417: if (MDOC_ROOT == p->parent->type)
418: return(REWIND_THIS);
1.84 schwarze 419: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
420: MDOC_Sh == p->tok)
421: return(REWIND_MORE);
1.1 kristaps 422: break;
423: default:
424: break;
425: }
426:
1.86 schwarze 427: /*
428: * Default block rewinding rules.
1.88 schwarze 429: * In particular, always skip block end markers,
430: * and let all blocks rewind Nm children.
1.146 schwarze 431: * Do not warn again when closing a block,
432: * since closing the body already warned.
1.86 schwarze 433: */
1.88 schwarze 434: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.146 schwarze 435: MDOC_BLOCK == type || (MDOC_BLOCK == p->type &&
1.86 schwarze 436: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
437: return(REWIND_MORE);
438:
439: /*
1.98 kristaps 440: * By default, closing out full blocks
441: * forces closing of broken explicit blocks,
442: * while closing out partial blocks
443: * allows delayed rewinding by default.
1.86 schwarze 444: */
1.98 kristaps 445: return (&blk_full == mdoc_macros[tok].fp ?
446: REWIND_FORCE : REWIND_LATER);
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
466: * until the rew_sub call closing *broken.
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;
1.137 schwarze 536: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.131 schwarze 537: "%s breaks %s", mdoc_macronames[tok],
538: mdoc_macronames[broken->tok]);
1.83 schwarze 539: return(1);
540: }
541:
542: /*
543: * Found no matching block for tok.
544: * Are you trying to close a block that is not open?
545: */
546: return(0);
547: }
548:
1.150 schwarze 549: static void
1.131 schwarze 550: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 551: enum mdoct tok, int line, int ppos)
1.1 kristaps 552: {
1.160 schwarze 553: struct mdoc_node *n, *to;
1.1 kristaps 554:
1.160 schwarze 555: to = NULL;
1.119 schwarze 556: n = mdoc->last;
1.84 schwarze 557: while (n) {
558: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 559: case REWIND_NONE:
1.160 schwarze 560: if (to == NULL)
561: return;
562: n = to;
563: break;
1.131 schwarze 564: case REWIND_THIS:
1.124 schwarze 565: n->lastline = line -
1.150 schwarze 566: (mdoc->flags & MDOC_NEWLINE &&
567: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.84 schwarze 568: break;
1.131 schwarze 569: case REWIND_FORCE:
1.137 schwarze 570: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.131 schwarze 571: line, ppos, "%s breaks %s",
572: mdoc_macronames[tok],
573: mdoc_macronames[n->tok]);
1.98 kristaps 574: /* FALLTHROUGH */
1.131 schwarze 575: case REWIND_MORE:
1.124 schwarze 576: n->lastline = line -
1.150 schwarze 577: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.160 schwarze 578: to = n;
1.84 schwarze 579: n = n->parent;
580: continue;
1.131 schwarze 581: case REWIND_LATER:
1.119 schwarze 582: if (make_pending(n, tok, mdoc, line, ppos) ||
1.150 schwarze 583: t != MDOC_BLOCK)
584: return;
1.98 kristaps 585: /* FALLTHROUGH */
1.131 schwarze 586: case REWIND_ERROR:
1.137 schwarze 587: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
588: mdoc->parse, line, ppos,
589: mdoc_macronames[tok]);
1.150 schwarze 590: return;
1.32 kristaps 591: }
1.84 schwarze 592: break;
1.1 kristaps 593: }
594: assert(n);
1.149 schwarze 595: rew_last(mdoc, n);
1.47 kristaps 596:
597: /*
1.83 schwarze 598: * The current block extends an enclosing block.
599: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 600: */
1.150 schwarze 601: while ((n = n->pending) != NULL) {
1.149 schwarze 602: rew_last(mdoc, n);
1.150 schwarze 603: if (n->type == MDOC_HEAD)
604: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
1.47 kristaps 605: }
1.1 kristaps 606: }
607:
1.105 kristaps 608: /*
609: * Allocate a word and check whether it's punctuation or not.
610: * Punctuation consists of those tokens found in mdoc_isdelim().
611: */
1.150 schwarze 612: static void
1.123 schwarze 613: dword(struct mdoc *mdoc, int line, int col, const char *p,
614: enum mdelim d, int may_append)
1.105 kristaps 615: {
1.131 schwarze 616:
1.150 schwarze 617: if (d == DELIM_MAX)
1.105 kristaps 618: d = mdoc_isdelim(p);
619:
1.123 schwarze 620: if (may_append &&
1.150 schwarze 621: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
622: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
623: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 624: mdoc_word_append(mdoc, p);
1.150 schwarze 625: return;
1.123 schwarze 626: }
627:
1.150 schwarze 628: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 629:
1.108 schwarze 630: /*
1.144 schwarze 631: * If the word consists of a bare delimiter,
632: * flag the new node accordingly,
633: * unless doing so was vetoed by the invoking macro.
634: * Always clear the veto, it is only valid for one word.
1.108 schwarze 635: */
636:
1.144 schwarze 637: if (d == DELIM_OPEN)
638: mdoc->last->flags |= MDOC_DELIMO;
639: else if (d == DELIM_CLOSE &&
640: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 641: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 642: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 643: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 644: }
1.1 kristaps 645:
1.150 schwarze 646: static void
1.119 schwarze 647: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 648: {
1.153 schwarze 649: char *p;
1.66 kristaps 650: int la;
1.1 kristaps 651:
1.150 schwarze 652: if (buf[*pos] == '\0')
653: return;
1.1 kristaps 654:
655: for (;;) {
1.66 kristaps 656: la = *pos;
1.153 schwarze 657: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 658: break;
1.123 schwarze 659: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 660:
661: /*
662: * If we encounter end-of-sentence symbols, then trigger
663: * the double-space.
664: *
1.109 kristaps 665: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 666: * the last symbol, such that `. )' will cause the
667: * correct double-spacing. However, (1) groff isn't
668: * smart enough to do this and (2) it would require
669: * knowing which symbols break this behaviour, for
1.109 kristaps 670: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 671: */
1.150 schwarze 672:
1.127 schwarze 673: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 674: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 675: }
676: }
677:
678: /*
1.153 schwarze 679: * Parse one word.
680: * If it is a macro, call it and return 1.
681: * Otherwise, allocate it and return 0.
682: */
683: static int
684: macro_or_word(MACRO_PROT_ARGS, int parsed)
685: {
686: char *p;
687: enum mdoct ntok;
688:
689: p = buf + ppos;
690: ntok = MDOC_MAX;
1.157 schwarze 691: if (*p == '"')
1.153 schwarze 692: p++;
1.157 schwarze 693: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 694: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 695:
696: if (ntok == MDOC_MAX) {
697: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
698: mdoc_macros[tok].flags & MDOC_JOIN);
699: return(0);
700: } else {
701: if (mdoc_macros[tok].fp == in_line_eoln)
702: rew_elem(mdoc, tok);
703: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
704: if (tok == MDOC_MAX)
705: append_delims(mdoc, line, pos, buf);
706: return(1);
707: }
708: }
709:
710: /*
1.131 schwarze 711: * Close out block partial/full explicit.
1.1 kristaps 712: */
1.151 schwarze 713: static void
1.1 kristaps 714: blk_exp_close(MACRO_PROT_ARGS)
715: {
1.83 schwarze 716: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 717: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 718: struct mdoc_node *later; /* A sub-block starting later. */
719: struct mdoc_node *n; /* For searching backwards. */
720:
1.160 schwarze 721: int flushed, have_it, j, lastarg, maxargs, nl;
1.55 kristaps 722: enum margserr ac;
1.83 schwarze 723: enum mdoct atok, ntok;
1.1 kristaps 724: char *p;
725:
1.119 schwarze 726: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 727:
1.1 kristaps 728: switch (tok) {
1.131 schwarze 729: case MDOC_Ec:
1.1 kristaps 730: maxargs = 1;
731: break;
1.131 schwarze 732: case MDOC_Ek:
1.125 schwarze 733: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 734: /* FALLTHROUGH */
1.1 kristaps 735: default:
736: maxargs = 0;
737: break;
738: }
739:
1.83 schwarze 740: /*
741: * Search backwards for beginnings of blocks,
742: * both of our own and of pending sub-blocks.
743: */
1.151 schwarze 744:
1.160 schwarze 745: have_it = 0;
1.83 schwarze 746: atok = rew_alt(tok);
1.148 schwarze 747: body = endbody = later = NULL;
1.119 schwarze 748: for (n = mdoc->last; n; n = n->parent) {
1.161 schwarze 749: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.83 schwarze 750: continue;
751:
752: /* Remember the start of our own body. */
1.151 schwarze 753:
1.150 schwarze 754: if (n->type == MDOC_BODY && atok == n->tok) {
755: if (n->end == ENDBODY_NOT)
1.83 schwarze 756: body = n;
757: continue;
758: }
759:
1.150 schwarze 760: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 761: continue;
1.160 schwarze 762:
763: if (n->tok == MDOC_It) {
764: have_it = 1;
765: continue;
766: }
767:
1.83 schwarze 768: if (atok == n->tok) {
769: assert(body);
770:
771: /*
772: * Found the start of our own block.
773: * When there is no pending sub block,
774: * just proceed to closing out.
775: */
1.151 schwarze 776:
1.160 schwarze 777: if (later == NULL ||
778: (tok == MDOC_El && !have_it))
1.83 schwarze 779: break;
780:
1.131 schwarze 781: /*
1.83 schwarze 782: * When there is a pending sub block,
783: * postpone closing out the current block
784: * until the rew_sub() closing out the sub-block.
785: */
1.151 schwarze 786:
1.119 schwarze 787: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 788:
789: /*
790: * Mark the place where the formatting - but not
791: * the scope - of the current block ends.
792: */
1.151 schwarze 793:
1.150 schwarze 794: mdoc_endbody_alloc(mdoc, line, ppos,
795: atok, body, ENDBODY_SPACE);
1.151 schwarze 796:
797: /*
798: * If a block closing macro taking arguments
799: * breaks another block, put the arguments
800: * into the end marker and remeber the
801: * end marker in order to close it out.
802: */
803:
1.148 schwarze 804: if (maxargs) {
805: endbody = mdoc->last;
806: mdoc->next = MDOC_NEXT_CHILD;
807: }
1.83 schwarze 808: break;
809: }
810:
811: /*
812: * When finding an open sub block, remember the last
813: * open explicit block, or, in case there are only
814: * implicit ones, the first open implicit block.
815: */
1.151 schwarze 816:
1.160 schwarze 817: if (later == NULL ||
818: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.83 schwarze 819: later = n;
820: }
1.151 schwarze 821: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1.83 schwarze 822:
1.150 schwarze 823: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
824: if (buf[*pos] != '\0')
1.136 schwarze 825: mandoc_vmsg(MANDOCERR_ARG_SKIP,
826: mdoc->parse, line, ppos,
827: "%s %s", mdoc_macronames[tok],
828: buf + *pos);
1.150 schwarze 829: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.151 schwarze 830: return;
1.1 kristaps 831: }
832:
1.148 schwarze 833: if (maxargs && endbody == NULL) {
834: if (n == NULL) {
835: /*
836: * Stray .Ec without previous .Eo:
837: * Break the output line, ignore any arguments.
838: */
1.150 schwarze 839: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 840: rew_elem(mdoc, MDOC_br);
1.150 schwarze 841: } else
842: mdoc_tail_alloc(mdoc, line, ppos, atok);
1.148 schwarze 843: }
1.1 kristaps 844:
1.148 schwarze 845: flushed = n == NULL;
846: for (j = 0; ; j++) {
1.1 kristaps 847: lastarg = *pos;
848:
849: if (j == maxargs && ! flushed) {
1.150 schwarze 850: if (endbody == NULL)
851: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
852: else
1.149 schwarze 853: rew_last(mdoc, endbody);
1.1 kristaps 854: flushed = 1;
855: }
856:
1.119 schwarze 857: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 858: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 859: break;
860:
1.155 schwarze 861: ntok = ac == ARGS_QWORD ? MDOC_MAX :
862: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 863:
1.150 schwarze 864: if (ntok == MDOC_MAX) {
865: dword(mdoc, line, lastarg, p, DELIM_MAX,
866: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 867: continue;
868: }
1.1 kristaps 869:
1.54 kristaps 870: if ( ! flushed) {
1.150 schwarze 871: if (endbody == NULL)
872: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
873: else
1.149 schwarze 874: rew_last(mdoc, endbody);
1.54 kristaps 875: flushed = 1;
876: }
1.122 schwarze 877: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 878: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 879: break;
1.1 kristaps 880: }
881:
1.149 schwarze 882: if ( ! flushed) {
1.150 schwarze 883: if (endbody == NULL)
884: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
885: else
1.149 schwarze 886: rew_last(mdoc, endbody);
887: }
1.150 schwarze 888: if (nl)
889: append_delims(mdoc, line, pos, buf);
1.1 kristaps 890: }
891:
1.151 schwarze 892: static void
1.1 kristaps 893: in_line(MACRO_PROT_ARGS)
894: {
1.144 schwarze 895: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 896: enum mdoct ntok;
1.55 kristaps 897: enum margserr ac;
1.67 schwarze 898: enum mdelim d;
1.53 kristaps 899: struct mdoc_arg *arg;
900: char *p;
1.1 kristaps 901:
1.119 schwarze 902: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 903:
1.4 kristaps 904: /*
905: * Whether we allow ignored elements (those without content,
906: * usually because of reserved words) to squeak by.
907: */
1.45 kristaps 908:
1.4 kristaps 909: switch (tok) {
1.131 schwarze 910: case MDOC_An:
1.26 kristaps 911: /* FALLTHROUGH */
1.131 schwarze 912: case MDOC_Ar:
1.4 kristaps 913: /* FALLTHROUGH */
1.131 schwarze 914: case MDOC_Fl:
1.4 kristaps 915: /* FALLTHROUGH */
1.131 schwarze 916: case MDOC_Mt:
1.12 kristaps 917: /* FALLTHROUGH */
1.131 schwarze 918: case MDOC_Nm:
1.26 kristaps 919: /* FALLTHROUGH */
1.131 schwarze 920: case MDOC_Pa:
1.4 kristaps 921: nc = 1;
922: break;
923: default:
924: nc = 0;
925: break;
926: }
927:
1.152 schwarze 928: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 929:
1.144 schwarze 930: d = DELIM_NONE;
931: firstarg = 1;
1.142 schwarze 932: mayopen = 1;
1.70 kristaps 933: for (cnt = scope = 0;; ) {
1.1 kristaps 934: la = *pos;
1.119 schwarze 935: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 936:
1.144 schwarze 937: /*
938: * At the end of a macro line,
939: * opening delimiters do not suppress spacing.
940: */
941:
942: if (ac == ARGS_EOLN) {
943: if (d == DELIM_OPEN)
944: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 945: break;
1.144 schwarze 946: }
947:
948: /*
949: * The rest of the macro line is only punctuation,
950: * to be handled by append_delims().
951: * If there were no other arguments,
952: * do not allow the first one to suppress spacing,
953: * even if it turns out to be a closing one.
954: */
955:
956: if (ac == ARGS_PUNCT) {
957: if (cnt == 0 && nc == 0)
958: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 959: break;
1.144 schwarze 960: }
1.1 kristaps 961:
1.145 schwarze 962: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 963: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 964:
1.131 schwarze 965: /*
1.4 kristaps 966: * In this case, we've located a submacro and must
967: * execute it. Close out scope, if open. If no
968: * elements have been generated, either create one (nc)
969: * or raise a warning.
970: */
1.1 kristaps 971:
1.150 schwarze 972: if (ntok != MDOC_MAX) {
1.149 schwarze 973: if (scope)
974: rew_elem(mdoc, tok);
1.150 schwarze 975: if (nc && ! cnt) {
976: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 977: rew_last(mdoc, mdoc->last);
1.150 schwarze 978: } else if ( ! nc && ! cnt) {
1.7 kristaps 979: mdoc_argv_free(arg);
1.135 schwarze 980: mandoc_msg(MANDOCERR_MACRO_EMPTY,
981: mdoc->parse, line, ppos,
982: mdoc_macronames[tok]);
1.7 kristaps 983: }
1.151 schwarze 984: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 985: if (nl)
986: append_delims(mdoc, line, pos, buf);
1.151 schwarze 987: return;
1.131 schwarze 988: }
1.1 kristaps 989:
1.131 schwarze 990: /*
1.4 kristaps 991: * Non-quote-enclosed punctuation. Set up our scope, if
992: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 993: * the word.
1.4 kristaps 994: */
1.1 kristaps 995:
1.150 schwarze 996: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 997:
1.70 kristaps 998: if (DELIM_NONE != d) {
999: /*
1000: * If we encounter closing punctuation, no word
1.144 schwarze 1001: * has been emitted, no scope is open, and we're
1.70 kristaps 1002: * allowed to have an empty element, then start
1.142 schwarze 1003: * a new scope.
1.70 kristaps 1004: */
1.142 schwarze 1005: if ((d == DELIM_CLOSE ||
1006: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 1007: !cnt && !scope && nc && mayopen) {
1.150 schwarze 1008: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 1009: scope = 1;
1.142 schwarze 1010: cnt++;
1.150 schwarze 1011: if (tok == MDOC_Nm)
1.142 schwarze 1012: mayopen = 0;
1.70 kristaps 1013: }
1014: /*
1015: * Close out our scope, if one is open, before
1016: * any punctuation.
1017: */
1.149 schwarze 1018: if (scope)
1019: rew_elem(mdoc, tok);
1.70 kristaps 1020: scope = 0;
1.145 schwarze 1021: if (tok == MDOC_Fn)
1022: mayopen = 0;
1.142 schwarze 1023: } else if (mayopen && !scope) {
1.150 schwarze 1024: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 1025: scope = 1;
1.142 schwarze 1026: cnt++;
1.1 kristaps 1027: }
1.105 kristaps 1028:
1.150 schwarze 1029: dword(mdoc, line, la, p, d,
1030: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 1031:
1032: /*
1.144 schwarze 1033: * If the first argument is a closing delimiter,
1034: * do not suppress spacing before it.
1035: */
1036:
1037: if (firstarg && d == DELIM_CLOSE && !nc)
1038: mdoc->last->flags &= ~MDOC_DELIMC;
1039: firstarg = 0;
1040:
1041: /*
1.39 kristaps 1042: * `Fl' macros have their scope re-opened with each new
1043: * word so that the `-' can be added to each one without
1044: * having to parse out spaces.
1045: */
1.150 schwarze 1046: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1047: rew_elem(mdoc, tok);
1.70 kristaps 1048: scope = 0;
1.39 kristaps 1049: }
1.1 kristaps 1050: }
1051:
1.149 schwarze 1052: if (scope)
1053: rew_elem(mdoc, tok);
1.4 kristaps 1054:
1055: /*
1056: * If no elements have been collected and we're allowed to have
1057: * empties (nc), open a scope and close it out. Otherwise,
1058: * raise a warning.
1059: */
1.45 kristaps 1060:
1.150 schwarze 1061: if ( ! cnt) {
1062: if (nc) {
1063: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1064: rew_last(mdoc, mdoc->last);
1065: } else {
1066: mdoc_argv_free(arg);
1067: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1068: line, ppos, mdoc_macronames[tok]);
1069: }
1.7 kristaps 1070: }
1.150 schwarze 1071: if (nl)
1072: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1073: }
1074:
1.151 schwarze 1075: static void
1.1 kristaps 1076: blk_full(MACRO_PROT_ARGS)
1077: {
1.153 schwarze 1078: int la, nl, parsed;
1.1 kristaps 1079: struct mdoc_arg *arg;
1.165 ! schwarze 1080: struct mdoc_node *blk; /* Our own block. */
! 1081: struct mdoc_node *head; /* Our own head. */
! 1082: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 1083: struct mdoc_node *n;
1.59 kristaps 1084: enum margserr ac, lac;
1.1 kristaps 1085: char *p;
1086:
1.119 schwarze 1087: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1088:
1089: /* Skip items outside lists. */
1090:
1091: if (tok == MDOC_It) {
1092: for (n = mdoc->last; n; n = n->parent)
1.158 schwarze 1093: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1094: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.138 schwarze 1095: break;
1096: if (n == NULL) {
1097: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1098: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1099: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1100: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1101: return;
1.138 schwarze 1102: }
1103: }
1.63 kristaps 1104:
1.45 kristaps 1105: /* Close out prior implicit scope. */
1.19 kristaps 1106:
1.150 schwarze 1107: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1108: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1109: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1110: }
1111:
1.45 kristaps 1112: /*
1.109 kristaps 1113: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1114: * macro openings. Implicit ones first close out prior scope
1115: * (seen above). Delay opening the head until necessary to
1116: * allow leading punctuation to print. Special consideration
1117: * for `It -column', which has phrase-part syntax instead of
1118: * regular child nodes.
1119: */
1120:
1.152 schwarze 1121: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 ! schwarze 1122: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1123: head = body = NULL;
1.115 schwarze 1124:
1125: /*
1126: * Exception: Heads of `It' macros in `-diag' lists are not
1127: * parsed, even though `It' macros in general are parsed.
1128: */
1.151 schwarze 1129:
1.153 schwarze 1130: parsed = tok != MDOC_It ||
1131: mdoc->last->parent->tok != MDOC_Bl ||
1132: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1133:
1.45 kristaps 1134: /*
1135: * The `Nd' macro has all arguments in its body: it's a hybrid
1136: * of block partial-explicit and full-implicit. Stupid.
1137: */
1.19 kristaps 1138:
1.150 schwarze 1139: if (tok == MDOC_Nd) {
1140: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1141: rew_last(mdoc, head);
1.150 schwarze 1142: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1143: }
1144:
1.150 schwarze 1145: if (tok == MDOC_Bk)
1.123 schwarze 1146: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1147:
1.150 schwarze 1148: ac = ARGS_PEND;
1149: for (;;) {
1.45 kristaps 1150: la = *pos;
1.150 schwarze 1151: lac = ac;
1.119 schwarze 1152: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1153: if (ac == ARGS_PUNCT)
1.89 schwarze 1154: break;
1.150 schwarze 1155: if (ac == ARGS_EOLN) {
1156: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1157: break;
1158: /*
1159: * This is necessary: if the last token on a
1160: * line is a `Ta' or tab, then we'll get
1161: * ARGS_EOLN, so we must be smart enough to
1162: * reopen our scope if the last parse was a
1163: * phrase or partial phrase.
1164: */
1.150 schwarze 1165: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1166: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1167: break;
1.75 kristaps 1168: }
1.45 kristaps 1169:
1.131 schwarze 1170: /*
1.73 kristaps 1171: * Emit leading punctuation (i.e., punctuation before
1172: * the MDOC_HEAD) for non-phrase types.
1173: */
1.45 kristaps 1174:
1.150 schwarze 1175: if (head == NULL &&
1176: ac != ARGS_PEND &&
1177: ac != ARGS_PHRASE &&
1178: ac != ARGS_PPHRASE &&
1179: ac != ARGS_QWORD &&
1180: mdoc_isdelim(p) == DELIM_OPEN) {
1181: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1182: continue;
1183: }
1184:
1.74 kristaps 1185: /* Open a head if one hasn't been opened. */
1.45 kristaps 1186:
1.150 schwarze 1187: if (head == NULL)
1188: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1189:
1.150 schwarze 1190: if (ac == ARGS_PHRASE ||
1191: ac == ARGS_PEND ||
1192: ac == ARGS_PPHRASE) {
1.151 schwarze 1193:
1.73 kristaps 1194: /*
1.74 kristaps 1195: * If we haven't opened a body yet, rewind the
1196: * head; if we have, rewind that instead.
1197: */
1198:
1.150 schwarze 1199: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1200: mdoc, tok, line, ppos);
1201: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1202:
1203: /*
1.73 kristaps 1204: * Process phrases: set whether we're in a
1205: * partial-phrase (this effects line handling)
1206: * then call down into the phrase parser.
1207: */
1.74 kristaps 1208:
1.150 schwarze 1209: if (ac == ARGS_PPHRASE)
1.119 schwarze 1210: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1211: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1212: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1213: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1214: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1215: continue;
1216: }
1217:
1.153 schwarze 1218: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1219: break;
1.45 kristaps 1220: }
1.1 kristaps 1221:
1.165 ! schwarze 1222: if (blk->flags & MDOC_VALID)
! 1223: return;
1.150 schwarze 1224: if (head == NULL)
1225: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1226: if (nl)
1227: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1228: if (body != NULL)
1.77 kristaps 1229: goto out;
1.19 kristaps 1230:
1.47 kristaps 1231: /*
1.49 kristaps 1232: * If there is an open (i.e., unvalidated) sub-block requiring
1233: * explicit close-out, postpone switching the current block from
1234: * head to body until the rew_sub() call closing out that
1235: * sub-block.
1.47 kristaps 1236: */
1.119 schwarze 1237: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1238: if (n->type == MDOC_BLOCK &&
1239: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1240: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1241: n->pending = head;
1.151 schwarze 1242: return;
1.47 kristaps 1243: }
1244: }
1245:
1.45 kristaps 1246: /* Close out scopes to remain in a consistent state. */
1247:
1.150 schwarze 1248: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1249: mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1250: out:
1.150 schwarze 1251: if (mdoc->flags & MDOC_FREECOL) {
1252: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1253: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1254: mdoc->flags &= ~MDOC_FREECOL;
1255: }
1.1 kristaps 1256: }
1257:
1.151 schwarze 1258: static void
1.1 kristaps 1259: blk_part_imp(MACRO_PROT_ARGS)
1260: {
1.63 kristaps 1261: int la, nl;
1.55 kristaps 1262: enum margserr ac;
1.1 kristaps 1263: char *p;
1.43 kristaps 1264: struct mdoc_node *blk; /* saved block context */
1265: struct mdoc_node *body; /* saved body context */
1266: struct mdoc_node *n;
1.1 kristaps 1267:
1.119 schwarze 1268: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1269:
1.43 kristaps 1270: /*
1271: * A macro that spans to the end of the line. This is generally
1272: * (but not necessarily) called as the first macro. The block
1273: * has a head as the immediate child, which is always empty,
1274: * followed by zero or more opening punctuation nodes, then the
1275: * body (which may be empty, depending on the macro), then zero
1276: * or more closing punctuation nodes.
1277: */
1.32 kristaps 1278:
1.150 schwarze 1279: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1280: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1281:
1.43 kristaps 1282: /*
1283: * Open the body scope "on-demand", that is, after we've
1284: * processed all our the leading delimiters (open parenthesis,
1285: * etc.).
1286: */
1.1 kristaps 1287:
1.43 kristaps 1288: for (body = NULL; ; ) {
1.32 kristaps 1289: la = *pos;
1.119 schwarze 1290: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1291: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1292: break;
1293:
1.150 schwarze 1294: if (body == NULL && ac != ARGS_QWORD &&
1295: mdoc_isdelim(p) == DELIM_OPEN) {
1296: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1297: continue;
1.123 schwarze 1298: }
1.1 kristaps 1299:
1.150 schwarze 1300: if (body == NULL)
1301: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1302:
1.153 schwarze 1303: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1304: break;
1.1 kristaps 1305: }
1.150 schwarze 1306: if (body == NULL)
1307: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1308:
1.83 schwarze 1309: /*
1310: * If there is an open sub-block requiring explicit close-out,
1311: * postpone closing out the current block
1312: * until the rew_sub() call closing out the sub-block.
1313: */
1.151 schwarze 1314:
1.119 schwarze 1315: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1316: n = n->parent) {
1.150 schwarze 1317: if (n->type == MDOC_BLOCK &&
1318: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1319: ! (n->flags & MDOC_VALID)) {
1.119 schwarze 1320: make_pending(n, tok, mdoc, line, ppos);
1.150 schwarze 1321: mdoc_endbody_alloc(mdoc, line, ppos,
1322: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1323: return;
1.83 schwarze 1324: }
1325: }
1.134 schwarze 1326: assert(n == body);
1.164 schwarze 1327: rew_last(mdoc, body);
1.150 schwarze 1328: if (nl)
1329: append_delims(mdoc, line, pos, buf);
1.164 schwarze 1330: rew_last(mdoc, blk);
1331:
1332: /*
1333: * The current block extends an enclosing block.
1334: * Now that the current block ends, close the enclosing block, too.
1335: */
1336:
1337: while ((blk = blk->pending) != NULL) {
1338: rew_last(mdoc, blk);
1339: if (blk->type == MDOC_HEAD)
1340: mdoc_body_alloc(mdoc, blk->line, blk->pos, blk->tok);
1341: }
1.117 schwarze 1342:
1343: /* Move trailing .Ns out of scope. */
1344:
1345: for (n = body->child; n && n->next; n = n->next)
1346: /* Do nothing. */ ;
1.150 schwarze 1347: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1348: mdoc_node_relink(mdoc, n);
1.1 kristaps 1349: }
1350:
1.151 schwarze 1351: static void
1.1 kristaps 1352: blk_part_exp(MACRO_PROT_ARGS)
1353: {
1.60 kristaps 1354: int la, nl;
1.55 kristaps 1355: enum margserr ac;
1.43 kristaps 1356: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1357: char *p;
1358:
1.119 schwarze 1359: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1360:
1.43 kristaps 1361: /*
1362: * The opening of an explicit macro having zero or more leading
1363: * punctuation nodes; a head with optional single element (the
1364: * case of `Eo'); and a body that may be empty.
1365: */
1.32 kristaps 1366:
1.150 schwarze 1367: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1368: head = NULL;
1369: for (;;) {
1.32 kristaps 1370: la = *pos;
1.119 schwarze 1371: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1372: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1373: break;
1.43 kristaps 1374:
1375: /* Flush out leading punctuation. */
1376:
1.150 schwarze 1377: if (head == NULL && ac != ARGS_QWORD &&
1378: mdoc_isdelim(p) == DELIM_OPEN) {
1379: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1380: continue;
1.123 schwarze 1381: }
1.43 kristaps 1382:
1.150 schwarze 1383: if (head == NULL) {
1384: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1385: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1386: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1387: rew_last(mdoc, head);
1388: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1389: if (tok == MDOC_Eo)
1.43 kristaps 1390: continue;
1.1 kristaps 1391: }
1.43 kristaps 1392:
1.153 schwarze 1393: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1394: break;
1.1 kristaps 1395: }
1396:
1.43 kristaps 1397: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1398:
1.163 schwarze 1399: if (head == NULL) {
1400: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1401: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1402: }
1.150 schwarze 1403: if (nl)
1404: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1405: }
1406:
1.151 schwarze 1407: static void
1.1 kristaps 1408: in_line_argn(MACRO_PROT_ARGS)
1409: {
1.60 kristaps 1410: int la, flushed, j, maxargs, nl;
1.55 kristaps 1411: enum margserr ac;
1.53 kristaps 1412: struct mdoc_arg *arg;
1413: char *p;
1414: enum mdoct ntok;
1.1 kristaps 1415:
1.156 schwarze 1416: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1417:
1.46 kristaps 1418: /*
1419: * A line macro that has a fixed number of arguments (maxargs).
1420: * Only open the scope once the first non-leading-punctuation is
1421: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1422: * keep it open until the maximum number of arguments are
1423: * exhausted.
1424: */
1.1 kristaps 1425:
1426: switch (tok) {
1.131 schwarze 1427: case MDOC_Ap:
1.1 kristaps 1428: /* FALLTHROUGH */
1.131 schwarze 1429: case MDOC_Ns:
1.1 kristaps 1430: /* FALLTHROUGH */
1.131 schwarze 1431: case MDOC_Ux:
1.1 kristaps 1432: maxargs = 0;
1433: break;
1.131 schwarze 1434: case MDOC_Bx:
1.101 kristaps 1435: /* FALLTHROUGH */
1.132 schwarze 1436: case MDOC_Es:
1437: /* FALLTHROUGH */
1.131 schwarze 1438: case MDOC_Xr:
1.42 kristaps 1439: maxargs = 2;
1440: break;
1.1 kristaps 1441: default:
1442: maxargs = 1;
1443: break;
1444: }
1445:
1.152 schwarze 1446: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1447:
1.156 schwarze 1448: p = NULL;
1449: flushed = j = 0;
1450: for (;;) {
1.32 kristaps 1451: la = *pos;
1.119 schwarze 1452: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 schwarze 1453: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1454: if (j < 2 && tok == MDOC_Pf)
1455: mandoc_vmsg(MANDOCERR_PF_SKIP,
1456: mdoc->parse, line, ppos, "Pf %s",
1457: p == NULL ? "at eol" : p);
1.1 kristaps 1458: break;
1.156 schwarze 1459: }
1.1 kristaps 1460:
1.150 schwarze 1461: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1462: ac != ARGS_QWORD && j == 0 &&
1463: mdoc_isdelim(p) == DELIM_OPEN) {
1464: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1465: continue;
1.150 schwarze 1466: } else if (j == 0)
1467: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1468:
1469: if (j == maxargs && ! flushed) {
1.149 schwarze 1470: rew_elem(mdoc, tok);
1.46 kristaps 1471: flushed = 1;
1472: }
1473:
1.156 schwarze 1474: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1475: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1476:
1.150 schwarze 1477: if (ntok != MDOC_MAX) {
1.149 schwarze 1478: if ( ! flushed)
1479: rew_elem(mdoc, tok);
1.1 kristaps 1480: flushed = 1;
1.151 schwarze 1481: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1482: j++;
1.1 kristaps 1483: break;
1484: }
1485:
1.150 schwarze 1486: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1487: ac != ARGS_QWORD && ! flushed &&
1488: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1489: rew_elem(mdoc, tok);
1.1 kristaps 1490: flushed = 1;
1491: }
1.42 kristaps 1492:
1.150 schwarze 1493: dword(mdoc, line, la, p, DELIM_MAX,
1494: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1495: j++;
1.1 kristaps 1496: }
1497:
1.156 schwarze 1498: if (j == 0) {
1.150 schwarze 1499: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 schwarze 1500: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1501: append_delims(mdoc, line, pos, buf);
1502: }
1.149 schwarze 1503: if ( ! flushed)
1504: rew_elem(mdoc, tok);
1.150 schwarze 1505: if (nl)
1506: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1507: }
1508:
1.151 schwarze 1509: static void
1.1 kristaps 1510: in_line_eoln(MACRO_PROT_ARGS)
1511: {
1.53 kristaps 1512: struct mdoc_arg *arg;
1.1 kristaps 1513:
1.90 schwarze 1514: if (tok == MDOC_Pp)
1.119 schwarze 1515: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1516:
1.152 schwarze 1517: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1518: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1519: if (parse_rest(mdoc, tok, line, pos, buf))
1520: return;
1521: rew_elem(mdoc, tok);
1522: }
1523:
1524: /*
1525: * The simplest argument parser available: Parse the remaining
1526: * words until the end of the phrase or line and return 0
1527: * or until the next macro, call that macro, and return 1.
1528: */
1529: static int
1530: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1531: {
1532: int la;
1.1 kristaps 1533:
1534: for (;;) {
1535: la = *pos;
1.153 schwarze 1536: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1537: return(0);
1.153 schwarze 1538: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1539: return(1);
1.1 kristaps 1540: }
1541: }
1542:
1.151 schwarze 1543: static void
1.41 kristaps 1544: ctx_synopsis(MACRO_PROT_ARGS)
1545: {
1.60 kristaps 1546:
1.151 schwarze 1547: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1548: in_line(mdoc, tok, line, ppos, pos, buf);
1549: else if (tok == MDOC_Nm)
1550: blk_full(mdoc, tok, line, ppos, pos, buf);
1551: else {
1552: assert(tok == MDOC_Vt);
1553: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1554: }
1.1 kristaps 1555: }
1556:
1.24 kristaps 1557: /*
1558: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1559: * They're unusual because they're basically free-form text until a
1560: * macro is encountered.
1561: */
1.151 schwarze 1562: static void
1.75 kristaps 1563: phrase_ta(MACRO_PROT_ARGS)
1564: {
1.121 schwarze 1565: struct mdoc_node *n;
1.75 kristaps 1566:
1.121 schwarze 1567: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1568:
1.121 schwarze 1569: n = mdoc->last;
1.159 schwarze 1570: while (n != NULL &&
1571: (n->tok != MDOC_Bl || n->flags & (MDOC_VALID | MDOC_BREAK)))
1.121 schwarze 1572: n = n->parent;
1.151 schwarze 1573: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1574: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1575: line, ppos, "Ta");
1.151 schwarze 1576: return;
1.121 schwarze 1577: }
1.75 kristaps 1578:
1.121 schwarze 1579: /* Advance to the next column. */
1.150 schwarze 1580:
1581: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1582: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1583: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1584: }
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