Annotation of mandoc/mdoc_macro.c, Revision 1.159
1.159 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.158 2014/12/18 03:10:11 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: /*
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: {
553: struct mdoc_node *n;
554:
1.119 schwarze 555: n = mdoc->last;
1.84 schwarze 556: while (n) {
557: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 558: case REWIND_NONE:
1.150 schwarze 559: return;
1.131 schwarze 560: case REWIND_THIS:
1.124 schwarze 561: n->lastline = line -
1.150 schwarze 562: (mdoc->flags & MDOC_NEWLINE &&
563: ! (mdoc_macros[tok].flags & MDOC_EXPLICIT));
1.84 schwarze 564: break;
1.131 schwarze 565: case REWIND_FORCE:
1.137 schwarze 566: mandoc_vmsg(MANDOCERR_BLK_BROKEN, mdoc->parse,
1.131 schwarze 567: line, ppos, "%s breaks %s",
568: mdoc_macronames[tok],
569: mdoc_macronames[n->tok]);
1.98 kristaps 570: /* FALLTHROUGH */
1.131 schwarze 571: case REWIND_MORE:
1.124 schwarze 572: n->lastline = line -
1.150 schwarze 573: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.84 schwarze 574: n = n->parent;
575: continue;
1.131 schwarze 576: case REWIND_LATER:
1.119 schwarze 577: if (make_pending(n, tok, mdoc, line, ppos) ||
1.150 schwarze 578: t != MDOC_BLOCK)
579: return;
1.98 kristaps 580: /* FALLTHROUGH */
1.131 schwarze 581: case REWIND_ERROR:
1.137 schwarze 582: mandoc_msg(MANDOCERR_BLK_NOTOPEN,
583: mdoc->parse, line, ppos,
584: mdoc_macronames[tok]);
1.150 schwarze 585: return;
1.32 kristaps 586: }
1.84 schwarze 587: break;
1.1 kristaps 588: }
589: assert(n);
1.149 schwarze 590: rew_last(mdoc, n);
1.47 kristaps 591:
592: /*
1.83 schwarze 593: * The current block extends an enclosing block.
594: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 595: */
1.150 schwarze 596: while ((n = n->pending) != NULL) {
1.149 schwarze 597: rew_last(mdoc, n);
1.150 schwarze 598: if (n->type == MDOC_HEAD)
599: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
1.47 kristaps 600: }
1.1 kristaps 601: }
602:
1.105 kristaps 603: /*
604: * Allocate a word and check whether it's punctuation or not.
605: * Punctuation consists of those tokens found in mdoc_isdelim().
606: */
1.150 schwarze 607: static void
1.123 schwarze 608: dword(struct mdoc *mdoc, int line, int col, const char *p,
609: enum mdelim d, int may_append)
1.105 kristaps 610: {
1.131 schwarze 611:
1.150 schwarze 612: if (d == DELIM_MAX)
1.105 kristaps 613: d = mdoc_isdelim(p);
614:
1.123 schwarze 615: if (may_append &&
1.150 schwarze 616: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
617: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
618: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 619: mdoc_word_append(mdoc, p);
1.150 schwarze 620: return;
1.123 schwarze 621: }
622:
1.150 schwarze 623: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 624:
1.108 schwarze 625: /*
1.144 schwarze 626: * If the word consists of a bare delimiter,
627: * flag the new node accordingly,
628: * unless doing so was vetoed by the invoking macro.
629: * Always clear the veto, it is only valid for one word.
1.108 schwarze 630: */
631:
1.144 schwarze 632: if (d == DELIM_OPEN)
633: mdoc->last->flags |= MDOC_DELIMO;
634: else if (d == DELIM_CLOSE &&
635: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 636: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 637: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 638: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 639: }
1.1 kristaps 640:
1.150 schwarze 641: static void
1.119 schwarze 642: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 643: {
1.153 schwarze 644: char *p;
1.66 kristaps 645: int la;
1.1 kristaps 646:
1.150 schwarze 647: if (buf[*pos] == '\0')
648: return;
1.1 kristaps 649:
650: for (;;) {
1.66 kristaps 651: la = *pos;
1.153 schwarze 652: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 653: break;
1.123 schwarze 654: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 655:
656: /*
657: * If we encounter end-of-sentence symbols, then trigger
658: * the double-space.
659: *
1.109 kristaps 660: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 661: * the last symbol, such that `. )' will cause the
662: * correct double-spacing. However, (1) groff isn't
663: * smart enough to do this and (2) it would require
664: * knowing which symbols break this behaviour, for
1.109 kristaps 665: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 666: */
1.150 schwarze 667:
1.127 schwarze 668: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 669: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 670: }
671: }
672:
673: /*
1.153 schwarze 674: * Parse one word.
675: * If it is a macro, call it and return 1.
676: * Otherwise, allocate it and return 0.
677: */
678: static int
679: macro_or_word(MACRO_PROT_ARGS, int parsed)
680: {
681: char *p;
682: enum mdoct ntok;
683:
684: p = buf + ppos;
685: ntok = MDOC_MAX;
1.157 schwarze 686: if (*p == '"')
1.153 schwarze 687: p++;
1.157 schwarze 688: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 689: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 690:
691: if (ntok == MDOC_MAX) {
692: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
693: mdoc_macros[tok].flags & MDOC_JOIN);
694: return(0);
695: } else {
696: if (mdoc_macros[tok].fp == in_line_eoln)
697: rew_elem(mdoc, tok);
698: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
699: if (tok == MDOC_MAX)
700: append_delims(mdoc, line, pos, buf);
701: return(1);
702: }
703: }
704:
705: /*
1.131 schwarze 706: * Close out block partial/full explicit.
1.1 kristaps 707: */
1.151 schwarze 708: static void
1.1 kristaps 709: blk_exp_close(MACRO_PROT_ARGS)
710: {
1.83 schwarze 711: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 712: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 713: struct mdoc_node *later; /* A sub-block starting later. */
714: struct mdoc_node *n; /* For searching backwards. */
715:
1.131 schwarze 716: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 717: enum margserr ac;
1.83 schwarze 718: enum mdoct atok, ntok;
1.1 kristaps 719: char *p;
720:
1.119 schwarze 721: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 722:
1.1 kristaps 723: switch (tok) {
1.131 schwarze 724: case MDOC_Ec:
1.1 kristaps 725: maxargs = 1;
726: break;
1.131 schwarze 727: case MDOC_Ek:
1.125 schwarze 728: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 729: /* FALLTHROUGH */
1.1 kristaps 730: default:
731: maxargs = 0;
732: break;
733: }
734:
1.83 schwarze 735: /*
736: * Search backwards for beginnings of blocks,
737: * both of our own and of pending sub-blocks.
738: */
1.151 schwarze 739:
1.83 schwarze 740: atok = rew_alt(tok);
1.148 schwarze 741: body = endbody = later = NULL;
1.119 schwarze 742: for (n = mdoc->last; n; n = n->parent) {
1.150 schwarze 743: if (n->flags & MDOC_VALID)
1.83 schwarze 744: continue;
745:
746: /* Remember the start of our own body. */
1.151 schwarze 747:
1.150 schwarze 748: if (n->type == MDOC_BODY && atok == n->tok) {
749: if (n->end == ENDBODY_NOT)
1.83 schwarze 750: body = n;
751: continue;
752: }
753:
1.150 schwarze 754: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 755: continue;
756: if (atok == n->tok) {
757: assert(body);
758:
759: /*
760: * Found the start of our own block.
761: * When there is no pending sub block,
762: * just proceed to closing out.
763: */
1.151 schwarze 764:
1.150 schwarze 765: if (later == NULL)
1.83 schwarze 766: break;
767:
1.131 schwarze 768: /*
1.83 schwarze 769: * When there is a pending sub block,
770: * postpone closing out the current block
771: * until the rew_sub() closing out the sub-block.
772: */
1.151 schwarze 773:
1.119 schwarze 774: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 775:
776: /*
777: * Mark the place where the formatting - but not
778: * the scope - of the current block ends.
779: */
1.151 schwarze 780:
1.150 schwarze 781: mdoc_endbody_alloc(mdoc, line, ppos,
782: atok, body, ENDBODY_SPACE);
1.151 schwarze 783:
784: /*
785: * If a block closing macro taking arguments
786: * breaks another block, put the arguments
787: * into the end marker and remeber the
788: * end marker in order to close it out.
789: */
790:
1.148 schwarze 791: if (maxargs) {
792: endbody = mdoc->last;
793: mdoc->next = MDOC_NEXT_CHILD;
794: }
1.83 schwarze 795: break;
796: }
797:
798: /*
799: * When finding an open sub block, remember the last
800: * open explicit block, or, in case there are only
801: * implicit ones, the first open implicit block.
802: */
1.151 schwarze 803:
1.83 schwarze 804: if (later &&
1.150 schwarze 805: mdoc_macros[later->tok].flags & MDOC_EXPLICIT)
1.83 schwarze 806: continue;
1.150 schwarze 807: if (n->tok != MDOC_It)
1.83 schwarze 808: later = n;
809: }
1.151 schwarze 810: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1.83 schwarze 811:
1.150 schwarze 812: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
813: if (buf[*pos] != '\0')
1.136 schwarze 814: mandoc_vmsg(MANDOCERR_ARG_SKIP,
815: mdoc->parse, line, ppos,
816: "%s %s", mdoc_macronames[tok],
817: buf + *pos);
1.150 schwarze 818: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.151 schwarze 819: return;
1.1 kristaps 820: }
821:
1.148 schwarze 822: if (maxargs && endbody == NULL) {
823: if (n == NULL) {
824: /*
825: * Stray .Ec without previous .Eo:
826: * Break the output line, ignore any arguments.
827: */
1.150 schwarze 828: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 829: rew_elem(mdoc, MDOC_br);
1.150 schwarze 830: } else
831: mdoc_tail_alloc(mdoc, line, ppos, atok);
1.148 schwarze 832: }
1.1 kristaps 833:
1.148 schwarze 834: flushed = n == NULL;
835: for (j = 0; ; j++) {
1.1 kristaps 836: lastarg = *pos;
837:
838: if (j == maxargs && ! flushed) {
1.150 schwarze 839: if (endbody == NULL)
840: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
841: else
1.149 schwarze 842: rew_last(mdoc, endbody);
1.1 kristaps 843: flushed = 1;
844: }
845:
1.119 schwarze 846: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 847: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 848: break;
849:
1.155 schwarze 850: ntok = ac == ARGS_QWORD ? MDOC_MAX :
851: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 852:
1.150 schwarze 853: if (ntok == MDOC_MAX) {
854: dword(mdoc, line, lastarg, p, DELIM_MAX,
855: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 856: continue;
857: }
1.1 kristaps 858:
1.54 kristaps 859: if ( ! flushed) {
1.150 schwarze 860: if (endbody == NULL)
861: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
862: else
1.149 schwarze 863: rew_last(mdoc, endbody);
1.54 kristaps 864: flushed = 1;
865: }
1.122 schwarze 866: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 867: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 868: break;
1.1 kristaps 869: }
870:
1.149 schwarze 871: if ( ! flushed) {
1.150 schwarze 872: if (endbody == NULL)
873: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
874: else
1.149 schwarze 875: rew_last(mdoc, endbody);
876: }
1.150 schwarze 877: if (nl)
878: append_delims(mdoc, line, pos, buf);
1.1 kristaps 879: }
880:
1.151 schwarze 881: static void
1.1 kristaps 882: in_line(MACRO_PROT_ARGS)
883: {
1.144 schwarze 884: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 885: enum mdoct ntok;
1.55 kristaps 886: enum margserr ac;
1.67 schwarze 887: enum mdelim d;
1.53 kristaps 888: struct mdoc_arg *arg;
889: char *p;
1.1 kristaps 890:
1.119 schwarze 891: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 892:
1.4 kristaps 893: /*
894: * Whether we allow ignored elements (those without content,
895: * usually because of reserved words) to squeak by.
896: */
1.45 kristaps 897:
1.4 kristaps 898: switch (tok) {
1.131 schwarze 899: case MDOC_An:
1.26 kristaps 900: /* FALLTHROUGH */
1.131 schwarze 901: case MDOC_Ar:
1.4 kristaps 902: /* FALLTHROUGH */
1.131 schwarze 903: case MDOC_Fl:
1.4 kristaps 904: /* FALLTHROUGH */
1.131 schwarze 905: case MDOC_Mt:
1.12 kristaps 906: /* FALLTHROUGH */
1.131 schwarze 907: case MDOC_Nm:
1.26 kristaps 908: /* FALLTHROUGH */
1.131 schwarze 909: case MDOC_Pa:
1.4 kristaps 910: nc = 1;
911: break;
912: default:
913: nc = 0;
914: break;
915: }
916:
1.152 schwarze 917: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 918:
1.144 schwarze 919: d = DELIM_NONE;
920: firstarg = 1;
1.142 schwarze 921: mayopen = 1;
1.70 kristaps 922: for (cnt = scope = 0;; ) {
1.1 kristaps 923: la = *pos;
1.119 schwarze 924: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 925:
1.144 schwarze 926: /*
927: * At the end of a macro line,
928: * opening delimiters do not suppress spacing.
929: */
930:
931: if (ac == ARGS_EOLN) {
932: if (d == DELIM_OPEN)
933: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 934: break;
1.144 schwarze 935: }
936:
937: /*
938: * The rest of the macro line is only punctuation,
939: * to be handled by append_delims().
940: * If there were no other arguments,
941: * do not allow the first one to suppress spacing,
942: * even if it turns out to be a closing one.
943: */
944:
945: if (ac == ARGS_PUNCT) {
946: if (cnt == 0 && nc == 0)
947: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 948: break;
1.144 schwarze 949: }
1.1 kristaps 950:
1.145 schwarze 951: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 952: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 953:
1.131 schwarze 954: /*
1.4 kristaps 955: * In this case, we've located a submacro and must
956: * execute it. Close out scope, if open. If no
957: * elements have been generated, either create one (nc)
958: * or raise a warning.
959: */
1.1 kristaps 960:
1.150 schwarze 961: if (ntok != MDOC_MAX) {
1.149 schwarze 962: if (scope)
963: rew_elem(mdoc, tok);
1.150 schwarze 964: if (nc && ! cnt) {
965: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 966: rew_last(mdoc, mdoc->last);
1.150 schwarze 967: } else if ( ! nc && ! cnt) {
1.7 kristaps 968: mdoc_argv_free(arg);
1.135 schwarze 969: mandoc_msg(MANDOCERR_MACRO_EMPTY,
970: mdoc->parse, line, ppos,
971: mdoc_macronames[tok]);
1.7 kristaps 972: }
1.151 schwarze 973: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 974: if (nl)
975: append_delims(mdoc, line, pos, buf);
1.151 schwarze 976: return;
1.131 schwarze 977: }
1.1 kristaps 978:
1.131 schwarze 979: /*
1.4 kristaps 980: * Non-quote-enclosed punctuation. Set up our scope, if
981: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 982: * the word.
1.4 kristaps 983: */
1.1 kristaps 984:
1.150 schwarze 985: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 986:
1.70 kristaps 987: if (DELIM_NONE != d) {
988: /*
989: * If we encounter closing punctuation, no word
1.144 schwarze 990: * has been emitted, no scope is open, and we're
1.70 kristaps 991: * allowed to have an empty element, then start
1.142 schwarze 992: * a new scope.
1.70 kristaps 993: */
1.142 schwarze 994: if ((d == DELIM_CLOSE ||
995: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 996: !cnt && !scope && nc && mayopen) {
1.150 schwarze 997: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 998: scope = 1;
1.142 schwarze 999: cnt++;
1.150 schwarze 1000: if (tok == MDOC_Nm)
1.142 schwarze 1001: mayopen = 0;
1.70 kristaps 1002: }
1003: /*
1004: * Close out our scope, if one is open, before
1005: * any punctuation.
1006: */
1.149 schwarze 1007: if (scope)
1008: rew_elem(mdoc, tok);
1.70 kristaps 1009: scope = 0;
1.145 schwarze 1010: if (tok == MDOC_Fn)
1011: mayopen = 0;
1.142 schwarze 1012: } else if (mayopen && !scope) {
1.150 schwarze 1013: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 1014: scope = 1;
1.142 schwarze 1015: cnt++;
1.1 kristaps 1016: }
1.105 kristaps 1017:
1.150 schwarze 1018: dword(mdoc, line, la, p, d,
1019: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 1020:
1021: /*
1.144 schwarze 1022: * If the first argument is a closing delimiter,
1023: * do not suppress spacing before it.
1024: */
1025:
1026: if (firstarg && d == DELIM_CLOSE && !nc)
1027: mdoc->last->flags &= ~MDOC_DELIMC;
1028: firstarg = 0;
1029:
1030: /*
1.39 kristaps 1031: * `Fl' macros have their scope re-opened with each new
1032: * word so that the `-' can be added to each one without
1033: * having to parse out spaces.
1034: */
1.150 schwarze 1035: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1036: rew_elem(mdoc, tok);
1.70 kristaps 1037: scope = 0;
1.39 kristaps 1038: }
1.1 kristaps 1039: }
1040:
1.149 schwarze 1041: if (scope)
1042: rew_elem(mdoc, tok);
1.4 kristaps 1043:
1044: /*
1045: * If no elements have been collected and we're allowed to have
1046: * empties (nc), open a scope and close it out. Otherwise,
1047: * raise a warning.
1048: */
1.45 kristaps 1049:
1.150 schwarze 1050: if ( ! cnt) {
1051: if (nc) {
1052: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1053: rew_last(mdoc, mdoc->last);
1054: } else {
1055: mdoc_argv_free(arg);
1056: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1057: line, ppos, mdoc_macronames[tok]);
1058: }
1.7 kristaps 1059: }
1.150 schwarze 1060: if (nl)
1061: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1062: }
1063:
1.151 schwarze 1064: static void
1.1 kristaps 1065: blk_full(MACRO_PROT_ARGS)
1066: {
1.153 schwarze 1067: int la, nl, parsed;
1.1 kristaps 1068: struct mdoc_arg *arg;
1.45 kristaps 1069: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 1070: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 1071: struct mdoc_node *n;
1.59 kristaps 1072: enum margserr ac, lac;
1.1 kristaps 1073: char *p;
1074:
1.119 schwarze 1075: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1076:
1077: /* Skip items outside lists. */
1078:
1079: if (tok == MDOC_It) {
1080: for (n = mdoc->last; n; n = n->parent)
1.158 schwarze 1081: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1082: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.138 schwarze 1083: break;
1084: if (n == NULL) {
1085: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1086: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1087: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1088: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1089: return;
1.138 schwarze 1090: }
1091: }
1.63 kristaps 1092:
1.45 kristaps 1093: /* Close out prior implicit scope. */
1.19 kristaps 1094:
1.150 schwarze 1095: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1096: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1097: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1098: }
1099:
1.45 kristaps 1100: /*
1.109 kristaps 1101: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1102: * macro openings. Implicit ones first close out prior scope
1103: * (seen above). Delay opening the head until necessary to
1104: * allow leading punctuation to print. Special consideration
1105: * for `It -column', which has phrase-part syntax instead of
1106: * regular child nodes.
1107: */
1108:
1.152 schwarze 1109: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1110: mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1111: head = body = NULL;
1.115 schwarze 1112:
1113: /*
1114: * Exception: Heads of `It' macros in `-diag' lists are not
1115: * parsed, even though `It' macros in general are parsed.
1116: */
1.151 schwarze 1117:
1.153 schwarze 1118: parsed = tok != MDOC_It ||
1119: mdoc->last->parent->tok != MDOC_Bl ||
1120: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1121:
1.45 kristaps 1122: /*
1123: * The `Nd' macro has all arguments in its body: it's a hybrid
1124: * of block partial-explicit and full-implicit. Stupid.
1125: */
1.19 kristaps 1126:
1.150 schwarze 1127: if (tok == MDOC_Nd) {
1128: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1129: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1130: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1131: }
1132:
1.150 schwarze 1133: if (tok == MDOC_Bk)
1.123 schwarze 1134: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1135:
1.150 schwarze 1136: ac = ARGS_PEND;
1137: for (;;) {
1.45 kristaps 1138: la = *pos;
1.150 schwarze 1139: lac = ac;
1.119 schwarze 1140: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1141: if (ac == ARGS_PUNCT)
1.89 schwarze 1142: break;
1.150 schwarze 1143: if (ac == ARGS_EOLN) {
1144: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1145: break;
1146: /*
1147: * This is necessary: if the last token on a
1148: * line is a `Ta' or tab, then we'll get
1149: * ARGS_EOLN, so we must be smart enough to
1150: * reopen our scope if the last parse was a
1151: * phrase or partial phrase.
1152: */
1.150 schwarze 1153: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1154: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1155: break;
1.75 kristaps 1156: }
1.45 kristaps 1157:
1.131 schwarze 1158: /*
1.73 kristaps 1159: * Emit leading punctuation (i.e., punctuation before
1160: * the MDOC_HEAD) for non-phrase types.
1161: */
1.45 kristaps 1162:
1.150 schwarze 1163: if (head == NULL &&
1164: ac != ARGS_PEND &&
1165: ac != ARGS_PHRASE &&
1166: ac != ARGS_PPHRASE &&
1167: ac != ARGS_QWORD &&
1168: mdoc_isdelim(p) == DELIM_OPEN) {
1169: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1170: continue;
1171: }
1172:
1.74 kristaps 1173: /* Open a head if one hasn't been opened. */
1.45 kristaps 1174:
1.150 schwarze 1175: if (head == NULL)
1176: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1177:
1.150 schwarze 1178: if (ac == ARGS_PHRASE ||
1179: ac == ARGS_PEND ||
1180: ac == ARGS_PPHRASE) {
1.151 schwarze 1181:
1.73 kristaps 1182: /*
1.74 kristaps 1183: * If we haven't opened a body yet, rewind the
1184: * head; if we have, rewind that instead.
1185: */
1186:
1.150 schwarze 1187: rew_sub(body ? MDOC_BODY : MDOC_HEAD,
1188: mdoc, tok, line, ppos);
1189: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1190:
1191: /*
1.73 kristaps 1192: * Process phrases: set whether we're in a
1193: * partial-phrase (this effects line handling)
1194: * then call down into the phrase parser.
1195: */
1.74 kristaps 1196:
1.150 schwarze 1197: if (ac == ARGS_PPHRASE)
1.119 schwarze 1198: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1199: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1200: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1201: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1202: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1203: continue;
1204: }
1205:
1.153 schwarze 1206: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1207: break;
1.45 kristaps 1208: }
1.1 kristaps 1209:
1.150 schwarze 1210: if (head == NULL)
1211: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1212: if (nl)
1213: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1214: if (body != NULL)
1.77 kristaps 1215: goto out;
1.19 kristaps 1216:
1.47 kristaps 1217: /*
1.49 kristaps 1218: * If there is an open (i.e., unvalidated) sub-block requiring
1219: * explicit close-out, postpone switching the current block from
1220: * head to body until the rew_sub() call closing out that
1221: * sub-block.
1.47 kristaps 1222: */
1.119 schwarze 1223: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1224: if (n->type == MDOC_BLOCK &&
1225: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1226: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1227: n->pending = head;
1.151 schwarze 1228: return;
1.47 kristaps 1229: }
1230: }
1231:
1.45 kristaps 1232: /* Close out scopes to remain in a consistent state. */
1233:
1.150 schwarze 1234: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1235: mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1236: out:
1.150 schwarze 1237: if (mdoc->flags & MDOC_FREECOL) {
1238: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1239: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1240: mdoc->flags &= ~MDOC_FREECOL;
1241: }
1.1 kristaps 1242: }
1243:
1.151 schwarze 1244: static void
1.1 kristaps 1245: blk_part_imp(MACRO_PROT_ARGS)
1246: {
1.63 kristaps 1247: int la, nl;
1.55 kristaps 1248: enum margserr ac;
1.1 kristaps 1249: char *p;
1.43 kristaps 1250: struct mdoc_node *blk; /* saved block context */
1251: struct mdoc_node *body; /* saved body context */
1252: struct mdoc_node *n;
1.1 kristaps 1253:
1.119 schwarze 1254: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1255:
1.43 kristaps 1256: /*
1257: * A macro that spans to the end of the line. This is generally
1258: * (but not necessarily) called as the first macro. The block
1259: * has a head as the immediate child, which is always empty,
1260: * followed by zero or more opening punctuation nodes, then the
1261: * body (which may be empty, depending on the macro), then zero
1262: * or more closing punctuation nodes.
1263: */
1.32 kristaps 1264:
1.150 schwarze 1265: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1266: mdoc_head_alloc(mdoc, line, ppos, tok);
1267: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1.1 kristaps 1268:
1.43 kristaps 1269: /*
1270: * Open the body scope "on-demand", that is, after we've
1271: * processed all our the leading delimiters (open parenthesis,
1272: * etc.).
1273: */
1.1 kristaps 1274:
1.43 kristaps 1275: for (body = NULL; ; ) {
1.32 kristaps 1276: la = *pos;
1.119 schwarze 1277: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1278: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1279: break;
1280:
1.150 schwarze 1281: if (body == NULL && ac != ARGS_QWORD &&
1282: mdoc_isdelim(p) == DELIM_OPEN) {
1283: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1284: continue;
1.123 schwarze 1285: }
1.1 kristaps 1286:
1.150 schwarze 1287: if (body == NULL)
1288: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1289:
1.153 schwarze 1290: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1291: break;
1.1 kristaps 1292: }
1.150 schwarze 1293: if (body == NULL)
1294: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1295:
1.83 schwarze 1296: /*
1297: * If there is an open sub-block requiring explicit close-out,
1298: * postpone closing out the current block
1299: * until the rew_sub() call closing out the sub-block.
1300: */
1.151 schwarze 1301:
1.119 schwarze 1302: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1303: n = n->parent) {
1.150 schwarze 1304: if (n->type == MDOC_BLOCK &&
1305: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1306: ! (n->flags & MDOC_VALID)) {
1.119 schwarze 1307: make_pending(n, tok, mdoc, line, ppos);
1.150 schwarze 1308: mdoc_endbody_alloc(mdoc, line, ppos,
1309: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1310: return;
1.83 schwarze 1311: }
1312: }
1.134 schwarze 1313: assert(n == body);
1.150 schwarze 1314: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1315: if (nl)
1316: append_delims(mdoc, line, pos, buf);
1317: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.117 schwarze 1318:
1319: /* Move trailing .Ns out of scope. */
1320:
1321: for (n = body->child; n && n->next; n = n->next)
1322: /* Do nothing. */ ;
1.150 schwarze 1323: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1324: mdoc_node_relink(mdoc, n);
1.1 kristaps 1325: }
1326:
1.151 schwarze 1327: static void
1.1 kristaps 1328: blk_part_exp(MACRO_PROT_ARGS)
1329: {
1.60 kristaps 1330: int la, nl;
1.55 kristaps 1331: enum margserr ac;
1.43 kristaps 1332: struct mdoc_node *head; /* keep track of head */
1333: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1334: char *p;
1335:
1.119 schwarze 1336: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1337:
1.43 kristaps 1338: /*
1339: * The opening of an explicit macro having zero or more leading
1340: * punctuation nodes; a head with optional single element (the
1341: * case of `Eo'); and a body that may be empty.
1342: */
1.32 kristaps 1343:
1.150 schwarze 1344: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.43 kristaps 1345: for (head = body = NULL; ; ) {
1.32 kristaps 1346: la = *pos;
1.119 schwarze 1347: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1348: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1349: break;
1.43 kristaps 1350:
1351: /* Flush out leading punctuation. */
1352:
1.150 schwarze 1353: if (head == NULL && ac != ARGS_QWORD &&
1354: mdoc_isdelim(p) == DELIM_OPEN) {
1.43 kristaps 1355: assert(NULL == body);
1.150 schwarze 1356: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1357: continue;
1.123 schwarze 1358: }
1.43 kristaps 1359:
1.150 schwarze 1360: if (head == NULL) {
1361: assert(body == NULL);
1362: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1363: }
1364:
1.43 kristaps 1365: /*
1366: * `Eo' gobbles any data into the head, but most other
1367: * macros just immediately close out and begin the body.
1368: */
1369:
1.150 schwarze 1370: if (body == NULL) {
1.43 kristaps 1371: assert(head);
1372: /* No check whether it's a macro! */
1.150 schwarze 1373: if (tok == MDOC_Eo)
1374: dword(mdoc, line, la, p, DELIM_MAX, 0);
1375: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1376: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1377: if (tok == MDOC_Eo)
1.43 kristaps 1378: continue;
1.1 kristaps 1379: }
1.150 schwarze 1380: assert(head != NULL && body != NULL);
1.43 kristaps 1381:
1.153 schwarze 1382: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1383: break;
1.1 kristaps 1384: }
1385:
1.43 kristaps 1386: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1387:
1.150 schwarze 1388: if (head == NULL)
1389: mdoc_head_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1390:
1.150 schwarze 1391: if (body == NULL) {
1392: rew_sub(MDOC_HEAD, mdoc, tok, line, ppos);
1393: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1394: }
1.150 schwarze 1395: if (nl)
1396: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1397: }
1398:
1.151 schwarze 1399: static void
1.1 kristaps 1400: in_line_argn(MACRO_PROT_ARGS)
1401: {
1.60 kristaps 1402: int la, flushed, j, maxargs, nl;
1.55 kristaps 1403: enum margserr ac;
1.53 kristaps 1404: struct mdoc_arg *arg;
1405: char *p;
1406: enum mdoct ntok;
1.1 kristaps 1407:
1.156 schwarze 1408: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1409:
1.46 kristaps 1410: /*
1411: * A line macro that has a fixed number of arguments (maxargs).
1412: * Only open the scope once the first non-leading-punctuation is
1413: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1414: * keep it open until the maximum number of arguments are
1415: * exhausted.
1416: */
1.1 kristaps 1417:
1418: switch (tok) {
1.131 schwarze 1419: case MDOC_Ap:
1.1 kristaps 1420: /* FALLTHROUGH */
1.131 schwarze 1421: case MDOC_Ns:
1.1 kristaps 1422: /* FALLTHROUGH */
1.131 schwarze 1423: case MDOC_Ux:
1.1 kristaps 1424: maxargs = 0;
1425: break;
1.131 schwarze 1426: case MDOC_Bx:
1.101 kristaps 1427: /* FALLTHROUGH */
1.132 schwarze 1428: case MDOC_Es:
1429: /* FALLTHROUGH */
1.131 schwarze 1430: case MDOC_Xr:
1.42 kristaps 1431: maxargs = 2;
1432: break;
1.1 kristaps 1433: default:
1434: maxargs = 1;
1435: break;
1436: }
1437:
1.152 schwarze 1438: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1439:
1.156 schwarze 1440: p = NULL;
1441: flushed = j = 0;
1442: for (;;) {
1.32 kristaps 1443: la = *pos;
1.119 schwarze 1444: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 schwarze 1445: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1446: if (j < 2 && tok == MDOC_Pf)
1447: mandoc_vmsg(MANDOCERR_PF_SKIP,
1448: mdoc->parse, line, ppos, "Pf %s",
1449: p == NULL ? "at eol" : p);
1.1 kristaps 1450: break;
1.156 schwarze 1451: }
1.1 kristaps 1452:
1.150 schwarze 1453: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1454: ac != ARGS_QWORD && j == 0 &&
1455: mdoc_isdelim(p) == DELIM_OPEN) {
1456: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1457: continue;
1.150 schwarze 1458: } else if (j == 0)
1459: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1460:
1461: if (j == maxargs && ! flushed) {
1.149 schwarze 1462: rew_elem(mdoc, tok);
1.46 kristaps 1463: flushed = 1;
1464: }
1465:
1.156 schwarze 1466: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1467: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1468:
1.150 schwarze 1469: if (ntok != MDOC_MAX) {
1.149 schwarze 1470: if ( ! flushed)
1471: rew_elem(mdoc, tok);
1.1 kristaps 1472: flushed = 1;
1.151 schwarze 1473: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1474: j++;
1.1 kristaps 1475: break;
1476: }
1477:
1.150 schwarze 1478: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1479: ac != ARGS_QWORD && ! flushed &&
1480: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1481: rew_elem(mdoc, tok);
1.1 kristaps 1482: flushed = 1;
1483: }
1.42 kristaps 1484:
1.150 schwarze 1485: dword(mdoc, line, la, p, DELIM_MAX,
1486: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1487: j++;
1.1 kristaps 1488: }
1489:
1.156 schwarze 1490: if (j == 0) {
1.150 schwarze 1491: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 schwarze 1492: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1493: append_delims(mdoc, line, pos, buf);
1494: }
1.149 schwarze 1495: if ( ! flushed)
1496: rew_elem(mdoc, tok);
1.150 schwarze 1497: if (nl)
1498: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1499: }
1500:
1.151 schwarze 1501: static void
1.1 kristaps 1502: in_line_eoln(MACRO_PROT_ARGS)
1503: {
1.53 kristaps 1504: struct mdoc_arg *arg;
1.1 kristaps 1505:
1.90 schwarze 1506: if (tok == MDOC_Pp)
1.119 schwarze 1507: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1508:
1.152 schwarze 1509: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1510: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1511: if (parse_rest(mdoc, tok, line, pos, buf))
1512: return;
1513: rew_elem(mdoc, tok);
1514: }
1515:
1516: /*
1517: * The simplest argument parser available: Parse the remaining
1518: * words until the end of the phrase or line and return 0
1519: * or until the next macro, call that macro, and return 1.
1520: */
1521: static int
1522: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1523: {
1524: int la;
1.1 kristaps 1525:
1526: for (;;) {
1527: la = *pos;
1.153 schwarze 1528: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1529: return(0);
1.153 schwarze 1530: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1531: return(1);
1.1 kristaps 1532: }
1533: }
1534:
1.151 schwarze 1535: static void
1.41 kristaps 1536: ctx_synopsis(MACRO_PROT_ARGS)
1537: {
1.60 kristaps 1538:
1.151 schwarze 1539: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1540: in_line(mdoc, tok, line, ppos, pos, buf);
1541: else if (tok == MDOC_Nm)
1542: blk_full(mdoc, tok, line, ppos, pos, buf);
1543: else {
1544: assert(tok == MDOC_Vt);
1545: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1546: }
1.1 kristaps 1547: }
1548:
1.24 kristaps 1549: /*
1550: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1551: * They're unusual because they're basically free-form text until a
1552: * macro is encountered.
1553: */
1.151 schwarze 1554: static void
1.75 kristaps 1555: phrase_ta(MACRO_PROT_ARGS)
1556: {
1.121 schwarze 1557: struct mdoc_node *n;
1.75 kristaps 1558:
1.121 schwarze 1559: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1560:
1.121 schwarze 1561: n = mdoc->last;
1.159 ! schwarze 1562: while (n != NULL &&
! 1563: (n->tok != MDOC_Bl || n->flags & (MDOC_VALID | MDOC_BREAK)))
1.121 schwarze 1564: n = n->parent;
1.151 schwarze 1565: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1566: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1567: line, ppos, "Ta");
1.151 schwarze 1568: return;
1.121 schwarze 1569: }
1.75 kristaps 1570:
1.121 schwarze 1571: /* Advance to the next column. */
1.150 schwarze 1572:
1573: rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos);
1574: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1575: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1576: }
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