Annotation of mandoc/mdoc_macro.c, Revision 1.156
1.156 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.155 2014/11/30 02:36:38 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 *);
1.155 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: */
1.84 schwarze 366: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
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: /*
481: * If the *broken block had already been broken before
482: * and we encounter its breaker, make the tok block
483: * pending on the inner breaker.
484: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
485: * becomes "[A broken=[B [C->B B] tok=A] C]"
486: * and finally "[A [B->A [C->B B] A] C]".
487: */
488: if (breaker == broken->pending) {
489: broken = breaker;
490: continue;
491: }
492:
1.84 schwarze 493: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 494: continue;
495: if (MDOC_BODY == broken->type)
496: broken = broken->parent;
497:
498: /*
499: * Found the breaker.
500: * If another, outer breaker is already pending on
501: * the *broken block, we must not clobber the link
502: * to the outer breaker, but make it pending on the
503: * new, now inner breaker.
504: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
505: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
506: * and finally "[A [B->A [C->B A] B] C]".
507: */
508: if (broken->pending) {
509: struct mdoc_node *taker;
510:
511: /*
512: * If the breaker had also been broken before,
513: * it cannot take on the outer breaker itself,
514: * but must hand it on to its own breakers.
515: * Graphically, this is the following situation:
516: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
517: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
518: */
519: taker = breaker;
520: while (taker->pending)
521: taker = taker->pending;
522: taker->pending = broken->pending;
523: }
524: broken->pending = breaker;
1.137 schwarze 525: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
1.131 schwarze 526: "%s breaks %s", mdoc_macronames[tok],
527: mdoc_macronames[broken->tok]);
1.83 schwarze 528: return(1);
529: }
530:
531: /*
532: * Found no matching block for tok.
533: * Are you trying to close a block that is not open?
534: */
535: return(0);
536: }
537:
1.150 schwarze 538: static void
1.131 schwarze 539: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 540: enum mdoct tok, int line, int ppos)
1.1 kristaps 541: {
542: struct mdoc_node *n;
543:
1.119 schwarze 544: n = mdoc->last;
1.84 schwarze 545: while (n) {
546: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 547: case REWIND_NONE:
1.150 schwarze 548: return;
1.131 schwarze 549: case REWIND_THIS:
1.124 schwarze 550: n->lastline = line -
1.150 schwarze 551: (mdoc->flags & MDOC_NEWLINE &&
552: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.84 schwarze 553: break;
1.131 schwarze 554: case REWIND_FORCE:
1.137 schwarze 555: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.131 schwarze 556: line, ppos, "%s breaks %s",
557: mdoc_macronames[tok],
558: mdoc_macronames[n->tok]);
1.98 kristaps 559: /* FALLTHROUGH */
1.131 schwarze 560: case REWIND_MORE:
1.124 schwarze 561: n->lastline = line -
1.150 schwarze 562: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.84 schwarze 563: n = n->parent;
564: continue;
1.131 schwarze 565: case REWIND_LATER:
1.119 schwarze 566: if (make_pending(n, tok, mdoc, line, ppos) ||
1.150 schwarze 567: t != MDOC_BLOCK)
568: return;
1.98 kristaps 569: /* FALLTHROUGH */
1.131 schwarze 570: case REWIND_ERROR:
1.137 schwarze 571: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
572: mdoc->parse, line, ppos,
573: mdoc_macronames[tok]);
1.150 schwarze 574: return;
1.32 kristaps 575: }
1.84 schwarze 576: break;
1.1 kristaps 577: }
578: assert(n);
1.149 schwarze 579: rew_last(mdoc, n);
1.47 kristaps 580:
581: /*
1.83 schwarze 582: * The current block extends an enclosing block.
583: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 584: */
1.150 schwarze 585: while ((n = n->pending) != NULL) {
1.149 schwarze 586: rew_last(mdoc, n);
1.150 schwarze 587: if (n->type == MDOC_HEAD)
588: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
1.47 kristaps 589: }
1.1 kristaps 590: }
591:
1.105 kristaps 592: /*
593: * Allocate a word and check whether it's punctuation or not.
594: * Punctuation consists of those tokens found in mdoc_isdelim().
595: */
1.150 schwarze 596: static void
1.123 schwarze 597: dword(struct mdoc *mdoc, int line, int col, const char *p,
598: enum mdelim d, int may_append)
1.105 kristaps 599: {
1.131 schwarze 600:
1.150 schwarze 601: if (d == DELIM_MAX)
1.105 kristaps 602: d = mdoc_isdelim(p);
603:
1.123 schwarze 604: if (may_append &&
1.150 schwarze 605: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
606: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
607: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 608: mdoc_word_append(mdoc, p);
1.150 schwarze 609: return;
1.123 schwarze 610: }
611:
1.150 schwarze 612: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 613:
1.108 schwarze 614: /*
1.144 schwarze 615: * If the word consists of a bare delimiter,
616: * flag the new node accordingly,
617: * unless doing so was vetoed by the invoking macro.
618: * Always clear the veto, it is only valid for one word.
1.108 schwarze 619: */
620:
1.144 schwarze 621: if (d == DELIM_OPEN)
622: mdoc->last->flags |= MDOC_DELIMO;
623: else if (d == DELIM_CLOSE &&
624: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 625: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 626: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 627: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 628: }
1.1 kristaps 629:
1.150 schwarze 630: static void
1.119 schwarze 631: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 632: {
1.153 schwarze 633: char *p;
1.66 kristaps 634: int la;
1.1 kristaps 635:
1.150 schwarze 636: if (buf[*pos] == '\0')
637: return;
1.1 kristaps 638:
639: for (;;) {
1.66 kristaps 640: la = *pos;
1.153 schwarze 641: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 642: break;
1.123 schwarze 643: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 644:
645: /*
646: * If we encounter end-of-sentence symbols, then trigger
647: * the double-space.
648: *
1.109 kristaps 649: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 650: * the last symbol, such that `. )' will cause the
651: * correct double-spacing. However, (1) groff isn't
652: * smart enough to do this and (2) it would require
653: * knowing which symbols break this behaviour, for
1.109 kristaps 654: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 655: */
1.150 schwarze 656:
1.127 schwarze 657: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 658: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 659: }
660: }
661:
662: /*
1.153 schwarze 663: * Parse one word.
664: * If it is a macro, call it and return 1.
665: * Otherwise, allocate it and return 0.
666: */
667: static int
668: macro_or_word(MACRO_PROT_ARGS, int parsed)
669: {
670: char *p;
671: enum mdoct ntok;
672:
673: p = buf + ppos;
674: ntok = MDOC_MAX;
675: if (mdoc->flags & MDOC_PHRASELIT)
676: /* nothing */;
677: else if (*p == '"')
678: p++;
679: else if (parsed)
1.155 schwarze 680: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 681:
682: if (ntok == MDOC_MAX) {
683: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
684: mdoc_macros[tok].flags & MDOC_JOIN);
685: return(0);
686: } else {
687: if (mdoc_macros[tok].fp == in_line_eoln)
688: rew_elem(mdoc, tok);
689: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
690: if (tok == MDOC_MAX)
691: append_delims(mdoc, line, pos, buf);
692: return(1);
693: }
694: }
695:
696: /*
1.131 schwarze 697: * Close out block partial/full explicit.
1.1 kristaps 698: */
1.151 schwarze 699: static void
1.1 kristaps 700: blk_exp_close(MACRO_PROT_ARGS)
701: {
1.83 schwarze 702: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 703: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 704: struct mdoc_node *later; /* A sub-block starting later. */
705: struct mdoc_node *n; /* For searching backwards. */
706:
1.131 schwarze 707: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 708: enum margserr ac;
1.83 schwarze 709: enum mdoct atok, ntok;
1.1 kristaps 710: char *p;
711:
1.119 schwarze 712: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 713:
1.1 kristaps 714: switch (tok) {
1.131 schwarze 715: case MDOC_Ec:
1.1 kristaps 716: maxargs = 1;
717: break;
1.131 schwarze 718: case MDOC_Ek:
1.125 schwarze 719: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 720: /* FALLTHROUGH */
1.1 kristaps 721: default:
722: maxargs = 0;
723: break;
724: }
725:
1.83 schwarze 726: /*
727: * Search backwards for beginnings of blocks,
728: * both of our own and of pending sub-blocks.
729: */
1.151 schwarze 730:
1.83 schwarze 731: atok = rew_alt(tok);
1.148 schwarze 732: body = endbody = later = NULL;
1.119 schwarze 733: for (n = mdoc->last; n; n = n->parent) {
1.150 schwarze 734: if (n->flags & MDOC_VALID)
1.83 schwarze 735: continue;
736:
737: /* Remember the start of our own body. */
1.151 schwarze 738:
1.150 schwarze 739: if (n->type == MDOC_BODY && atok == n->tok) {
740: if (n->end == ENDBODY_NOT)
1.83 schwarze 741: body = n;
742: continue;
743: }
744:
1.150 schwarze 745: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 746: continue;
747: if (atok == n->tok) {
748: assert(body);
749:
750: /*
751: * Found the start of our own block.
752: * When there is no pending sub block,
753: * just proceed to closing out.
754: */
1.151 schwarze 755:
1.150 schwarze 756: if (later == NULL)
1.83 schwarze 757: break;
758:
1.131 schwarze 759: /*
1.83 schwarze 760: * When there is a pending sub block,
761: * postpone closing out the current block
762: * until the rew_sub() closing out the sub-block.
763: */
1.151 schwarze 764:
1.119 schwarze 765: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 766:
767: /*
768: * Mark the place where the formatting - but not
769: * the scope - of the current block ends.
770: */
1.151 schwarze 771:
1.150 schwarze 772: mdoc_endbody_alloc(mdoc, line, ppos,
773: atok, body, ENDBODY_SPACE);
1.151 schwarze 774:
775: /*
776: * If a block closing macro taking arguments
777: * breaks another block, put the arguments
778: * into the end marker and remeber the
779: * end marker in order to close it out.
780: */
781:
1.148 schwarze 782: if (maxargs) {
783: endbody = mdoc->last;
784: mdoc->next = MDOC_NEXT_CHILD;
785: }
1.83 schwarze 786: break;
787: }
788:
789: /*
790: * When finding an open sub block, remember the last
791: * open explicit block, or, in case there are only
792: * implicit ones, the first open implicit block.
793: */
1.151 schwarze 794:
1.83 schwarze 795: if (later &&
1.150 schwarze 796: mdoc_macros[later->tok].flags & MDOC_EXPLICIT)
1.83 schwarze 797: continue;
1.150 schwarze 798: if (n->tok != MDOC_It)
1.83 schwarze 799: later = n;
800: }
1.151 schwarze 801: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1.83 schwarze 802:
1.150 schwarze 803: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
804: if (buf[*pos] != '\0')
1.136 schwarze 805: mandoc_vmsg(MANDOCERR_ARG_SKIP,
806: mdoc->parse, line, ppos,
807: "%s %s", mdoc_macronames[tok],
808: buf + *pos);
1.150 schwarze 809: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.151 schwarze 810: return;
1.1 kristaps 811: }
812:
1.148 schwarze 813: if (maxargs && endbody == NULL) {
814: if (n == NULL) {
815: /*
816: * Stray .Ec without previous .Eo:
817: * Break the output line, ignore any arguments.
818: */
1.150 schwarze 819: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 820: rew_elem(mdoc, MDOC_br);
1.150 schwarze 821: } else
822: mdoc_tail_alloc(mdoc, line, ppos, atok);
1.148 schwarze 823: }
1.1 kristaps 824:
1.148 schwarze 825: flushed = n == NULL;
826: for (j = 0; ; j++) {
1.1 kristaps 827: lastarg = *pos;
828:
829: if (j == maxargs && ! flushed) {
1.150 schwarze 830: if (endbody == NULL)
831: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
832: else
1.149 schwarze 833: rew_last(mdoc, endbody);
1.1 kristaps 834: flushed = 1;
835: }
836:
1.119 schwarze 837: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 838: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 839: break;
840:
1.155 schwarze 841: ntok = ac == ARGS_QWORD ? MDOC_MAX :
842: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 843:
1.150 schwarze 844: if (ntok == MDOC_MAX) {
845: dword(mdoc, line, lastarg, p, DELIM_MAX,
846: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 847: continue;
848: }
1.1 kristaps 849:
1.54 kristaps 850: if ( ! flushed) {
1.150 schwarze 851: if (endbody == NULL)
852: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
853: else
1.149 schwarze 854: rew_last(mdoc, endbody);
1.54 kristaps 855: flushed = 1;
856: }
1.122 schwarze 857: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 858: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 859: break;
1.1 kristaps 860: }
861:
1.149 schwarze 862: if ( ! flushed) {
1.150 schwarze 863: if (endbody == NULL)
864: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
865: else
1.149 schwarze 866: rew_last(mdoc, endbody);
867: }
1.150 schwarze 868: if (nl)
869: append_delims(mdoc, line, pos, buf);
1.1 kristaps 870: }
871:
1.151 schwarze 872: static void
1.1 kristaps 873: in_line(MACRO_PROT_ARGS)
874: {
1.144 schwarze 875: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 876: enum mdoct ntok;
1.55 kristaps 877: enum margserr ac;
1.67 schwarze 878: enum mdelim d;
1.53 kristaps 879: struct mdoc_arg *arg;
880: char *p;
1.1 kristaps 881:
1.119 schwarze 882: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 883:
1.4 kristaps 884: /*
885: * Whether we allow ignored elements (those without content,
886: * usually because of reserved words) to squeak by.
887: */
1.45 kristaps 888:
1.4 kristaps 889: switch (tok) {
1.131 schwarze 890: case MDOC_An:
1.26 kristaps 891: /* FALLTHROUGH */
1.131 schwarze 892: case MDOC_Ar:
1.4 kristaps 893: /* FALLTHROUGH */
1.131 schwarze 894: case MDOC_Fl:
1.4 kristaps 895: /* FALLTHROUGH */
1.131 schwarze 896: case MDOC_Mt:
1.12 kristaps 897: /* FALLTHROUGH */
1.131 schwarze 898: case MDOC_Nm:
1.26 kristaps 899: /* FALLTHROUGH */
1.131 schwarze 900: case MDOC_Pa:
1.4 kristaps 901: nc = 1;
902: break;
903: default:
904: nc = 0;
905: break;
906: }
907:
1.152 schwarze 908: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 909:
1.144 schwarze 910: d = DELIM_NONE;
911: firstarg = 1;
1.142 schwarze 912: mayopen = 1;
1.70 kristaps 913: for (cnt = scope = 0;; ) {
1.1 kristaps 914: la = *pos;
1.119 schwarze 915: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 916:
1.144 schwarze 917: /*
918: * At the end of a macro line,
919: * opening delimiters do not suppress spacing.
920: */
921:
922: if (ac == ARGS_EOLN) {
923: if (d == DELIM_OPEN)
924: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 925: break;
1.144 schwarze 926: }
927:
928: /*
929: * The rest of the macro line is only punctuation,
930: * to be handled by append_delims().
931: * If there were no other arguments,
932: * do not allow the first one to suppress spacing,
933: * even if it turns out to be a closing one.
934: */
935:
936: if (ac == ARGS_PUNCT) {
937: if (cnt == 0 && nc == 0)
938: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 939: break;
1.144 schwarze 940: }
1.1 kristaps 941:
1.145 schwarze 942: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 943: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 944:
1.131 schwarze 945: /*
1.4 kristaps 946: * In this case, we've located a submacro and must
947: * execute it. Close out scope, if open. If no
948: * elements have been generated, either create one (nc)
949: * or raise a warning.
950: */
1.1 kristaps 951:
1.150 schwarze 952: if (ntok != MDOC_MAX) {
1.149 schwarze 953: if (scope)
954: rew_elem(mdoc, tok);
1.150 schwarze 955: if (nc && ! cnt) {
956: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 957: rew_last(mdoc, mdoc->last);
1.150 schwarze 958: } else if ( ! nc && ! cnt) {
1.7 kristaps 959: mdoc_argv_free(arg);
1.135 schwarze 960: mandoc_msg(MANDOCERR_MACRO_EMPTY,
961: mdoc->parse, line, ppos,
962: mdoc_macronames[tok]);
1.7 kristaps 963: }
1.151 schwarze 964: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 965: if (nl)
966: append_delims(mdoc, line, pos, buf);
1.151 schwarze 967: return;
1.131 schwarze 968: }
1.1 kristaps 969:
1.131 schwarze 970: /*
1.4 kristaps 971: * Non-quote-enclosed punctuation. Set up our scope, if
972: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 973: * the word.
1.4 kristaps 974: */
1.1 kristaps 975:
1.150 schwarze 976: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 977:
1.70 kristaps 978: if (DELIM_NONE != d) {
979: /*
980: * If we encounter closing punctuation, no word
1.144 schwarze 981: * has been emitted, no scope is open, and we're
1.70 kristaps 982: * allowed to have an empty element, then start
1.142 schwarze 983: * a new scope.
1.70 kristaps 984: */
1.142 schwarze 985: if ((d == DELIM_CLOSE ||
986: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 987: !cnt && !scope && nc && mayopen) {
1.150 schwarze 988: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 989: scope = 1;
1.142 schwarze 990: cnt++;
1.150 schwarze 991: if (tok == MDOC_Nm)
1.142 schwarze 992: mayopen = 0;
1.70 kristaps 993: }
994: /*
995: * Close out our scope, if one is open, before
996: * any punctuation.
997: */
1.149 schwarze 998: if (scope)
999: rew_elem(mdoc, tok);
1.70 kristaps 1000: scope = 0;
1.145 schwarze 1001: if (tok == MDOC_Fn)
1002: mayopen = 0;
1.142 schwarze 1003: } else if (mayopen && !scope) {
1.150 schwarze 1004: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 1005: scope = 1;
1.142 schwarze 1006: cnt++;
1.1 kristaps 1007: }
1.105 kristaps 1008:
1.150 schwarze 1009: dword(mdoc, line, la, p, d,
1010: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 1011:
1012: /*
1.144 schwarze 1013: * If the first argument is a closing delimiter,
1014: * do not suppress spacing before it.
1015: */
1016:
1017: if (firstarg && d == DELIM_CLOSE && !nc)
1018: mdoc->last->flags &= ~MDOC_DELIMC;
1019: firstarg = 0;
1020:
1021: /*
1.39 kristaps 1022: * `Fl' macros have their scope re-opened with each new
1023: * word so that the `-' can be added to each one without
1024: * having to parse out spaces.
1025: */
1.150 schwarze 1026: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1027: rew_elem(mdoc, tok);
1.70 kristaps 1028: scope = 0;
1.39 kristaps 1029: }
1.1 kristaps 1030: }
1031:
1.149 schwarze 1032: if (scope)
1033: rew_elem(mdoc, tok);
1.4 kristaps 1034:
1035: /*
1036: * If no elements have been collected and we're allowed to have
1037: * empties (nc), open a scope and close it out. Otherwise,
1038: * raise a warning.
1039: */
1.45 kristaps 1040:
1.150 schwarze 1041: if ( ! cnt) {
1042: if (nc) {
1043: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1044: rew_last(mdoc, mdoc->last);
1045: } else {
1046: mdoc_argv_free(arg);
1047: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1048: line, ppos, mdoc_macronames[tok]);
1049: }
1.7 kristaps 1050: }
1.150 schwarze 1051: if (nl)
1052: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1053: }
1054:
1.151 schwarze 1055: static void
1.1 kristaps 1056: blk_full(MACRO_PROT_ARGS)
1057: {
1.153 schwarze 1058: int la, nl, parsed;
1.1 kristaps 1059: struct mdoc_arg *arg;
1.45 kristaps 1060: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 1061: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 1062: struct mdoc_node *n;
1.59 kristaps 1063: enum margserr ac, lac;
1.1 kristaps 1064: char *p;
1065:
1.119 schwarze 1066: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1067:
1068: /* Skip items outside lists. */
1069:
1070: if (tok == MDOC_It) {
1071: for (n = mdoc->last; n; n = n->parent)
1.141 schwarze 1072: if (n->tok == MDOC_Bl &&
1073: ! (n->flags & MDOC_VALID))
1.138 schwarze 1074: break;
1075: if (n == NULL) {
1076: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1077: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1078: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1079: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1080: return;
1.138 schwarze 1081: }
1082: }
1.63 kristaps 1083:
1.45 kristaps 1084: /* Close out prior implicit scope. */
1.19 kristaps 1085:
1.150 schwarze 1086: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1087: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1088: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1089: }
1090:
1.45 kristaps 1091: /*
1.109 kristaps 1092: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1093: * macro openings. Implicit ones first close out prior scope
1094: * (seen above). Delay opening the head until necessary to
1095: * allow leading punctuation to print. Special consideration
1096: * for `It -column', which has phrase-part syntax instead of
1097: * regular child nodes.
1098: */
1099:
1.152 schwarze 1100: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1101: mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1102: head = body = NULL;
1.115 schwarze 1103:
1104: /*
1105: * Exception: Heads of `It' macros in `-diag' lists are not
1106: * parsed, even though `It' macros in general are parsed.
1107: */
1.151 schwarze 1108:
1.153 schwarze 1109: parsed = tok != MDOC_It ||
1110: mdoc->last->parent->tok != MDOC_Bl ||
1111: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1112:
1.45 kristaps 1113: /*
1114: * The `Nd' macro has all arguments in its body: it's a hybrid
1115: * of block partial-explicit and full-implicit. Stupid.
1116: */
1.19 kristaps 1117:
1.150 schwarze 1118: if (tok == MDOC_Nd) {
1119: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1120: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1121: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1122: }
1123:
1.150 schwarze 1124: if (tok == MDOC_Bk)
1.123 schwarze 1125: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1126:
1.150 schwarze 1127: ac = ARGS_PEND;
1128: for (;;) {
1.45 kristaps 1129: la = *pos;
1.150 schwarze 1130: lac = ac;
1.119 schwarze 1131: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1132: if (ac == ARGS_PUNCT)
1.89 schwarze 1133: break;
1.150 schwarze 1134: if (ac == ARGS_EOLN) {
1135: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1136: break;
1137: /*
1138: * This is necessary: if the last token on a
1139: * line is a `Ta' or tab, then we'll get
1140: * ARGS_EOLN, so we must be smart enough to
1141: * reopen our scope if the last parse was a
1142: * phrase or partial phrase.
1143: */
1.150 schwarze 1144: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1145: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1146: break;
1.75 kristaps 1147: }
1.45 kristaps 1148:
1.131 schwarze 1149: /*
1.73 kristaps 1150: * Emit leading punctuation (i.e., punctuation before
1151: * the MDOC_HEAD) for non-phrase types.
1152: */
1.45 kristaps 1153:
1.150 schwarze 1154: if (head == NULL &&
1155: ac != ARGS_PEND &&
1156: ac != ARGS_PHRASE &&
1157: ac != ARGS_PPHRASE &&
1158: ac != ARGS_QWORD &&
1159: mdoc_isdelim(p) == DELIM_OPEN) {
1160: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1161: continue;
1162: }
1163:
1.74 kristaps 1164: /* Open a head if one hasn't been opened. */
1.45 kristaps 1165:
1.150 schwarze 1166: if (head == NULL)
1167: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1168:
1.150 schwarze 1169: if (ac == ARGS_PHRASE ||
1170: ac == ARGS_PEND ||
1171: ac == ARGS_PPHRASE) {
1.151 schwarze 1172:
1.73 kristaps 1173: /*
1.74 kristaps 1174: * If we haven't opened a body yet, rewind the
1175: * head; if we have, rewind that instead.
1176: */
1177:
1.150 schwarze 1178: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1179: mdoc, tok, line, ppos);
1180: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1181:
1182: /*
1.73 kristaps 1183: * Process phrases: set whether we're in a
1184: * partial-phrase (this effects line handling)
1185: * then call down into the phrase parser.
1186: */
1.74 kristaps 1187:
1.150 schwarze 1188: if (ac == ARGS_PPHRASE)
1.119 schwarze 1189: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1190: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1191: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1192: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1193: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1194: continue;
1195: }
1196:
1.153 schwarze 1197: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1198: break;
1.45 kristaps 1199: }
1.1 kristaps 1200:
1.150 schwarze 1201: if (head == NULL)
1202: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1203: if (nl)
1204: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1205: if (body != NULL)
1.77 kristaps 1206: goto out;
1.19 kristaps 1207:
1.47 kristaps 1208: /*
1.49 kristaps 1209: * If there is an open (i.e., unvalidated) sub-block requiring
1210: * explicit close-out, postpone switching the current block from
1211: * head to body until the rew_sub() call closing out that
1212: * sub-block.
1.47 kristaps 1213: */
1.119 schwarze 1214: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1215: if (n->type == MDOC_BLOCK &&
1216: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1217: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1218: n->pending = head;
1.151 schwarze 1219: return;
1.47 kristaps 1220: }
1221: }
1222:
1.45 kristaps 1223: /* Close out scopes to remain in a consistent state. */
1224:
1.150 schwarze 1225: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1226: mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1227: out:
1.150 schwarze 1228: if (mdoc->flags & MDOC_FREECOL) {
1229: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1230: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1231: mdoc->flags &= ~MDOC_FREECOL;
1232: }
1.1 kristaps 1233: }
1234:
1.151 schwarze 1235: static void
1.1 kristaps 1236: blk_part_imp(MACRO_PROT_ARGS)
1237: {
1.63 kristaps 1238: int la, nl;
1.55 kristaps 1239: enum margserr ac;
1.1 kristaps 1240: char *p;
1.43 kristaps 1241: struct mdoc_node *blk; /* saved block context */
1242: struct mdoc_node *body; /* saved body context */
1243: struct mdoc_node *n;
1.1 kristaps 1244:
1.119 schwarze 1245: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1246:
1.43 kristaps 1247: /*
1248: * A macro that spans to the end of the line. This is generally
1249: * (but not necessarily) called as the first macro. The block
1250: * has a head as the immediate child, which is always empty,
1251: * followed by zero or more opening punctuation nodes, then the
1252: * body (which may be empty, depending on the macro), then zero
1253: * or more closing punctuation nodes.
1254: */
1.32 kristaps 1255:
1.150 schwarze 1256: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1257: mdoc_head_alloc(mdoc, line, ppos, tok);
1258: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1.1 kristaps 1259:
1.43 kristaps 1260: /*
1261: * Open the body scope "on-demand", that is, after we've
1262: * processed all our the leading delimiters (open parenthesis,
1263: * etc.).
1264: */
1.1 kristaps 1265:
1.43 kristaps 1266: for (body = NULL; ; ) {
1.32 kristaps 1267: la = *pos;
1.119 schwarze 1268: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1269: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1270: break;
1271:
1.150 schwarze 1272: if (body == NULL && ac != ARGS_QWORD &&
1273: mdoc_isdelim(p) == DELIM_OPEN) {
1274: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1275: continue;
1.123 schwarze 1276: }
1.1 kristaps 1277:
1.150 schwarze 1278: if (body == NULL)
1279: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1280:
1.153 schwarze 1281: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1282: break;
1.1 kristaps 1283: }
1.150 schwarze 1284: if (body == NULL)
1285: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1286:
1.83 schwarze 1287: /*
1288: * If there is an open sub-block requiring explicit close-out,
1289: * postpone closing out the current block
1290: * until the rew_sub() call closing out the sub-block.
1291: */
1.151 schwarze 1292:
1.119 schwarze 1293: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1294: n = n->parent) {
1.150 schwarze 1295: if (n->type == MDOC_BLOCK &&
1296: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1297: ! (n->flags & MDOC_VALID)) {
1.119 schwarze 1298: make_pending(n, tok, mdoc, line, ppos);
1.150 schwarze 1299: mdoc_endbody_alloc(mdoc, line, ppos,
1300: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1301: return;
1.83 schwarze 1302: }
1303: }
1.134 schwarze 1304: assert(n == body);
1.150 schwarze 1305: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1306: if (nl)
1307: append_delims(mdoc, line, pos, buf);
1308: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.117 schwarze 1309:
1310: /* Move trailing .Ns out of scope. */
1311:
1312: for (n = body->child; n && n->next; n = n->next)
1313: /* Do nothing. */ ;
1.150 schwarze 1314: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1315: mdoc_node_relink(mdoc, n);
1.1 kristaps 1316: }
1317:
1.151 schwarze 1318: static void
1.1 kristaps 1319: blk_part_exp(MACRO_PROT_ARGS)
1320: {
1.60 kristaps 1321: int la, nl;
1.55 kristaps 1322: enum margserr ac;
1.43 kristaps 1323: struct mdoc_node *head; /* keep track of head */
1324: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1325: char *p;
1326:
1.119 schwarze 1327: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1328:
1.43 kristaps 1329: /*
1330: * The opening of an explicit macro having zero or more leading
1331: * punctuation nodes; a head with optional single element (the
1332: * case of `Eo'); and a body that may be empty.
1333: */
1.32 kristaps 1334:
1.150 schwarze 1335: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.43 kristaps 1336: for (head = body = NULL; ; ) {
1.32 kristaps 1337: la = *pos;
1.119 schwarze 1338: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1339: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1340: break;
1.43 kristaps 1341:
1342: /* Flush out leading punctuation. */
1343:
1.150 schwarze 1344: if (head == NULL && ac != ARGS_QWORD &&
1345: mdoc_isdelim(p) == DELIM_OPEN) {
1.43 kristaps 1346: assert(NULL == body);
1.150 schwarze 1347: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1348: continue;
1.123 schwarze 1349: }
1.43 kristaps 1350:
1.150 schwarze 1351: if (head == NULL) {
1352: assert(body == NULL);
1353: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1354: }
1355:
1.43 kristaps 1356: /*
1357: * `Eo' gobbles any data into the head, but most other
1358: * macros just immediately close out and begin the body.
1359: */
1360:
1.150 schwarze 1361: if (body == NULL) {
1.43 kristaps 1362: assert(head);
1363: /* No check whether it's a macro! */
1.150 schwarze 1364: if (tok == MDOC_Eo)
1365: dword(mdoc, line, la, p, DELIM_MAX, 0);
1366: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1367: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1368: if (tok == MDOC_Eo)
1.43 kristaps 1369: continue;
1.1 kristaps 1370: }
1.150 schwarze 1371: assert(head != NULL && body != NULL);
1.43 kristaps 1372:
1.153 schwarze 1373: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1374: break;
1.1 kristaps 1375: }
1376:
1.43 kristaps 1377: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1378:
1.150 schwarze 1379: if (head == NULL)
1380: mdoc_head_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1381:
1.150 schwarze 1382: if (body == NULL) {
1383: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1384: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1385: }
1.150 schwarze 1386: if (nl)
1387: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1388: }
1389:
1.151 schwarze 1390: static void
1.1 kristaps 1391: in_line_argn(MACRO_PROT_ARGS)
1392: {
1.60 kristaps 1393: int la, flushed, j, maxargs, nl;
1.55 kristaps 1394: enum margserr ac;
1.53 kristaps 1395: struct mdoc_arg *arg;
1396: char *p;
1397: enum mdoct ntok;
1.1 kristaps 1398:
1.156 ! schwarze 1399: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1400:
1.46 kristaps 1401: /*
1402: * A line macro that has a fixed number of arguments (maxargs).
1403: * Only open the scope once the first non-leading-punctuation is
1404: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1405: * keep it open until the maximum number of arguments are
1406: * exhausted.
1407: */
1.1 kristaps 1408:
1409: switch (tok) {
1.131 schwarze 1410: case MDOC_Ap:
1.1 kristaps 1411: /* FALLTHROUGH */
1.131 schwarze 1412: case MDOC_Ns:
1.1 kristaps 1413: /* FALLTHROUGH */
1.131 schwarze 1414: case MDOC_Ux:
1.1 kristaps 1415: maxargs = 0;
1416: break;
1.131 schwarze 1417: case MDOC_Bx:
1.101 kristaps 1418: /* FALLTHROUGH */
1.132 schwarze 1419: case MDOC_Es:
1420: /* FALLTHROUGH */
1.131 schwarze 1421: case MDOC_Xr:
1.42 kristaps 1422: maxargs = 2;
1423: break;
1.1 kristaps 1424: default:
1425: maxargs = 1;
1426: break;
1427: }
1428:
1.152 schwarze 1429: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1430:
1.156 ! schwarze 1431: p = NULL;
! 1432: flushed = j = 0;
! 1433: for (;;) {
1.32 kristaps 1434: la = *pos;
1.119 schwarze 1435: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 ! schwarze 1436: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
! 1437: if (j < 2 && tok == MDOC_Pf)
! 1438: mandoc_vmsg(MANDOCERR_PF_SKIP,
! 1439: mdoc->parse, line, ppos, "Pf %s",
! 1440: p == NULL ? "at eol" : p);
1.1 kristaps 1441: break;
1.156 ! schwarze 1442: }
1.1 kristaps 1443:
1.150 schwarze 1444: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1445: ac != ARGS_QWORD && j == 0 &&
1446: mdoc_isdelim(p) == DELIM_OPEN) {
1447: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1448: continue;
1.150 schwarze 1449: } else if (j == 0)
1450: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1451:
1452: if (j == maxargs && ! flushed) {
1.149 schwarze 1453: rew_elem(mdoc, tok);
1.46 kristaps 1454: flushed = 1;
1455: }
1456:
1.156 ! schwarze 1457: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
! 1458: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1459:
1.150 schwarze 1460: if (ntok != MDOC_MAX) {
1.149 schwarze 1461: if ( ! flushed)
1462: rew_elem(mdoc, tok);
1.1 kristaps 1463: flushed = 1;
1.151 schwarze 1464: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1465: j++;
1.1 kristaps 1466: break;
1467: }
1468:
1.150 schwarze 1469: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1470: ac != ARGS_QWORD && ! flushed &&
1471: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1472: rew_elem(mdoc, tok);
1.1 kristaps 1473: flushed = 1;
1474: }
1.42 kristaps 1475:
1.150 schwarze 1476: dword(mdoc, line, la, p, DELIM_MAX,
1477: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1478: j++;
1.1 kristaps 1479: }
1480:
1.156 ! schwarze 1481: if (j == 0) {
1.150 schwarze 1482: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 ! schwarze 1483: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
! 1484: append_delims(mdoc, line, pos, buf);
! 1485: }
1.149 schwarze 1486: if ( ! flushed)
1487: rew_elem(mdoc, tok);
1.150 schwarze 1488: if (nl)
1489: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1490: }
1491:
1.151 schwarze 1492: static void
1.1 kristaps 1493: in_line_eoln(MACRO_PROT_ARGS)
1494: {
1.53 kristaps 1495: struct mdoc_arg *arg;
1.1 kristaps 1496:
1.90 schwarze 1497: if (tok == MDOC_Pp)
1.119 schwarze 1498: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1499:
1.152 schwarze 1500: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1501: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1502: if (parse_rest(mdoc, tok, line, pos, buf))
1503: return;
1504: rew_elem(mdoc, tok);
1505: }
1506:
1507: /*
1508: * The simplest argument parser available: Parse the remaining
1509: * words until the end of the phrase or line and return 0
1510: * or until the next macro, call that macro, and return 1.
1511: */
1512: static int
1513: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1514: {
1515: int la;
1.1 kristaps 1516:
1517: for (;;) {
1518: la = *pos;
1.153 schwarze 1519: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1520: return(0);
1.153 schwarze 1521: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1522: return(1);
1.1 kristaps 1523: }
1524: }
1525:
1.151 schwarze 1526: static void
1.41 kristaps 1527: ctx_synopsis(MACRO_PROT_ARGS)
1528: {
1.60 kristaps 1529:
1.151 schwarze 1530: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1531: in_line(mdoc, tok, line, ppos, pos, buf);
1532: else if (tok == MDOC_Nm)
1533: blk_full(mdoc, tok, line, ppos, pos, buf);
1534: else {
1535: assert(tok == MDOC_Vt);
1536: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1537: }
1.1 kristaps 1538: }
1539:
1.24 kristaps 1540: /*
1541: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1542: * They're unusual because they're basically free-form text until a
1543: * macro is encountered.
1544: */
1.151 schwarze 1545: static void
1.75 kristaps 1546: phrase_ta(MACRO_PROT_ARGS)
1547: {
1.121 schwarze 1548: struct mdoc_node *n;
1.75 kristaps 1549:
1.121 schwarze 1550: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1551:
1.121 schwarze 1552: n = mdoc->last;
1.151 schwarze 1553: while (n != NULL && n->tok != MDOC_Bl)
1.121 schwarze 1554: n = n->parent;
1.151 schwarze 1555: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1556: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1557: line, ppos, "Ta");
1.151 schwarze 1558: return;
1.121 schwarze 1559: }
1.75 kristaps 1560:
1.121 schwarze 1561: /* Advance to the next column. */
1.150 schwarze 1562:
1563: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1564: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1565: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1566: }
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