Annotation of mandoc/mdoc_macro.c, Revision 1.169
1.169 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.168 2015/02/02 18:26:32 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.40 kristaps 18: #include "config.h"
1.140 schwarze 19:
20: #include <sys/types.h>
1.40 kristaps 21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.106 kristaps 29: #include "mdoc.h"
1.68 kristaps 30: #include "mandoc.h"
1.1 kristaps 31: #include "libmdoc.h"
1.64 kristaps 32: #include "libmandoc.h"
1.1 kristaps 33:
1.84 schwarze 34: enum rew { /* see rew_dohalt() */
35: REWIND_NONE,
36: REWIND_THIS,
37: REWIND_MORE,
1.167 schwarze 38: REWIND_FORCE
1.51 kristaps 39: };
1.1 kristaps 40:
1.151 schwarze 41: static void blk_full(MACRO_PROT_ARGS);
42: static void blk_exp_close(MACRO_PROT_ARGS);
43: static void blk_part_exp(MACRO_PROT_ARGS);
44: static void blk_part_imp(MACRO_PROT_ARGS);
45: static void ctx_synopsis(MACRO_PROT_ARGS);
46: static void in_line_eoln(MACRO_PROT_ARGS);
47: static void in_line_argn(MACRO_PROT_ARGS);
48: static void in_line(MACRO_PROT_ARGS);
49: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 50:
1.150 schwarze 51: static void dword(struct mdoc *, int, int, const char *,
1.123 schwarze 52: enum mdelim, int);
1.150 schwarze 53: static void append_delims(struct mdoc *, int, int *, char *);
1.155 schwarze 54: static enum mdoct lookup(struct mdoc *, enum mdoct,
55: int, int, const char *);
1.153 schwarze 56: static int macro_or_word(MACRO_PROT_ARGS, int);
1.168 schwarze 57: static void make_pending(struct mdoc *, struct mdoc_node *,
58: struct mdoc_node *, int, int);
1.154 schwarze 59: static int parse_rest(struct mdoc *, enum mdoct,
60: int, int *, char *);
1.131 schwarze 61: static enum mdoct rew_alt(enum mdoct);
62: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
1.53 kristaps 63: const struct mdoc_node *);
1.149 schwarze 64: static void rew_elem(struct mdoc *, enum mdoct);
65: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.166 schwarze 66: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.150 schwarze 67: static void rew_sub(enum mdoc_type, struct mdoc *,
1.53 kristaps 68: enum mdoct, int, int);
1.1 kristaps 69:
70: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 71: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 72: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
73: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
74: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 75: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
76: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
77: { in_line_eoln, 0 }, /* Pp */
78: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
79: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 80: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 81: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 82: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 83: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
84: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 93: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
95: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 99: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 100: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 101: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
102: { blk_full, MDOC_JOIN }, /* Nd */
103: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 104: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 105: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
107: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 109: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 110: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 111: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 112: { in_line_eoln, MDOC_JOIN }, /* %A */
113: { in_line_eoln, MDOC_JOIN }, /* %B */
114: { in_line_eoln, MDOC_JOIN }, /* %D */
115: { in_line_eoln, MDOC_JOIN }, /* %I */
116: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 117: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 118: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 119: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 120: { in_line_eoln, MDOC_JOIN }, /* %R */
121: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 122: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 123: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
124: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
125: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
126: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 129: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
130: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
131: { blk_full, MDOC_EXPLICIT }, /* Bf */
132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
133: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
134: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
137: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 138: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
140: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
142: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
143: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
145: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 148: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 149: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 150: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 152: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
153: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 154: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
155: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 156: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 157: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
158: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
159: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
160: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
161: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
162: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
164: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
165: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
166: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 167: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 168: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
169: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
170: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
172: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 173: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 174: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
175: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 176: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 177: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 178: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
179: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 180: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
181: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
182: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
183: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
184: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
185: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
186: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 187: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 188: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 189: { in_line_eoln, 0 }, /* Bt */
190: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 191: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 192: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 193: { in_line, 0 }, /* Lb */
1.123 schwarze 194: { in_line_eoln, 0 }, /* Lp */
195: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
196: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
197: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
198: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
199: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
200: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
201: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
202: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 203: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
204: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 205: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 206: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 207: { in_line_eoln, 0 }, /* br */
208: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 209: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 210: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 211: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 212: };
213:
214: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
215:
216:
217: /*
218: * This is called at the end of parsing. It must traverse up the tree,
219: * closing out open [implicit] scopes. Obviously, open explicit scopes
220: * are errors.
221: */
1.151 schwarze 222: void
1.119 schwarze 223: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 224: {
225: struct mdoc_node *n;
226:
227: /* Scan for open explicit scopes. */
228:
1.151 schwarze 229: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 230: mdoc->last->parent : mdoc->last;
1.1 kristaps 231:
1.94 schwarze 232: for ( ; n; n = n->parent)
1.151 schwarze 233: if (n->type == MDOC_BLOCK &&
234: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 235: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
236: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 237:
1.32 kristaps 238: /* Rewind to the first. */
239:
1.149 schwarze 240: rew_last(mdoc, mdoc->first);
1.1 kristaps 241: }
242:
1.32 kristaps 243: /*
1.153 schwarze 244: * Look up the macro at *p called by "from",
245: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 246: */
1.53 kristaps 247: static enum mdoct
1.155 schwarze 248: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28 kristaps 249: {
1.58 kristaps 250: enum mdoct res;
1.1 kristaps 251:
1.153 schwarze 252: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
253: res = mdoc_hash_find(p);
1.155 schwarze 254: if (res != MDOC_MAX) {
255: if (mdoc_macros[res].flags & MDOC_CALLABLE)
256: return(res);
257: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
258: mandoc_msg(MANDOCERR_MACRO_CALL,
259: mdoc->parse, line, ppos, p);
260: }
1.153 schwarze 261: }
1.1 kristaps 262: return(MDOC_MAX);
263: }
264:
1.166 schwarze 265: /*
266: * Rewind up to and including a specific node.
267: */
1.149 schwarze 268: static void
1.32 kristaps 269: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 270: {
1.100 kristaps 271: struct mdoc_node *n, *np;
1.1 kristaps 272:
273: assert(to);
274: mdoc->next = MDOC_NEXT_SIBLING;
275: while (mdoc->last != to) {
1.166 schwarze 276: if ( ! (mdoc->last->flags & MDOC_VALID))
277: mdoc->last->lastline = to->lastline -
278: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.100 kristaps 279: /*
280: * Save the parent here, because we may delete the
1.119 schwarze 281: * mdoc->last node in the post-validation phase and reset
282: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 283: * out to be lost.
284: */
285: np = mdoc->last->parent;
1.149 schwarze 286: mdoc_valid_post(mdoc);
1.99 kristaps 287: n = mdoc->last;
1.100 kristaps 288: mdoc->last = np;
1.1 kristaps 289: assert(mdoc->last);
1.99 kristaps 290: mdoc->last->last = n;
1.1 kristaps 291: }
1.149 schwarze 292: mdoc_valid_post(mdoc);
1.1 kristaps 293: }
294:
1.32 kristaps 295: /*
1.166 schwarze 296: * Rewind up to a specific block, including all blocks that broke it.
297: */
298: static void
299: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
300: {
301:
302: rew_last(mdoc, n);
303:
304: if (n->type != MDOC_BLOCK)
305: return;
306:
307: while ((n = n->pending) != NULL) {
308: rew_last(mdoc, n);
309: if (n->type == MDOC_HEAD)
310: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
311: }
312: }
313:
314: /*
1.84 schwarze 315: * For a block closing macro, return the corresponding opening one.
316: * Otherwise, return the macro itself.
1.32 kristaps 317: */
1.47 kristaps 318: static enum mdoct
319: rew_alt(enum mdoct tok)
1.1 kristaps 320: {
321: switch (tok) {
1.131 schwarze 322: case MDOC_Ac:
1.1 kristaps 323: return(MDOC_Ao);
1.131 schwarze 324: case MDOC_Bc:
1.1 kristaps 325: return(MDOC_Bo);
1.131 schwarze 326: case MDOC_Brc:
1.1 kristaps 327: return(MDOC_Bro);
1.131 schwarze 328: case MDOC_Dc:
1.1 kristaps 329: return(MDOC_Do);
1.131 schwarze 330: case MDOC_Ec:
1.1 kristaps 331: return(MDOC_Eo);
1.131 schwarze 332: case MDOC_Ed:
1.1 kristaps 333: return(MDOC_Bd);
1.131 schwarze 334: case MDOC_Ef:
1.1 kristaps 335: return(MDOC_Bf);
1.131 schwarze 336: case MDOC_Ek:
1.1 kristaps 337: return(MDOC_Bk);
1.131 schwarze 338: case MDOC_El:
1.1 kristaps 339: return(MDOC_Bl);
1.131 schwarze 340: case MDOC_Fc:
1.1 kristaps 341: return(MDOC_Fo);
1.131 schwarze 342: case MDOC_Oc:
1.1 kristaps 343: return(MDOC_Oo);
1.131 schwarze 344: case MDOC_Pc:
1.1 kristaps 345: return(MDOC_Po);
1.131 schwarze 346: case MDOC_Qc:
1.1 kristaps 347: return(MDOC_Qo);
1.131 schwarze 348: case MDOC_Re:
1.1 kristaps 349: return(MDOC_Rs);
1.131 schwarze 350: case MDOC_Sc:
1.1 kristaps 351: return(MDOC_So);
1.131 schwarze 352: case MDOC_Xc:
1.1 kristaps 353: return(MDOC_Xo);
354: default:
1.84 schwarze 355: return(tok);
1.1 kristaps 356: }
357: /* NOTREACHED */
358: }
359:
1.84 schwarze 360: /*
361: * Rewinding to tok, how do we have to handle *p?
362: * REWIND_NONE: *p would delimit tok, but no tok scope is open
363: * inside *p, so there is no need to rewind anything at all.
364: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
365: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 366: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.1 kristaps 367: */
1.51 kristaps 368: static enum rew
1.131 schwarze 369: rew_dohalt(enum mdoct tok, enum mdoc_type type,
1.47 kristaps 370: const struct mdoc_node *p)
1.1 kristaps 371: {
372:
1.86 schwarze 373: /*
374: * No matching token, no delimiting block, no broken block.
375: * This can happen when full implicit macros are called for
376: * the first time but try to rewind their previous
377: * instance anyway.
378: */
1.1 kristaps 379: if (MDOC_ROOT == p->type)
1.167 schwarze 380: return(REWIND_NONE);
1.86 schwarze 381:
382: /*
1.131 schwarze 383: * When starting to rewind, skip plain text
1.86 schwarze 384: * and nodes that have already been rewound.
385: */
1.161 schwarze 386: if (p->type == MDOC_TEXT || p->flags & (MDOC_VALID | MDOC_BREAK))
1.84 schwarze 387: return(REWIND_MORE);
388:
1.86 schwarze 389: /*
390: * The easiest case: Found a matching token.
391: * This applies to both blocks and elements.
392: */
1.84 schwarze 393: tok = rew_alt(tok);
394: if (tok == p->tok)
1.167 schwarze 395: return(type == p->type ? REWIND_THIS : REWIND_MORE);
1.84 schwarze 396:
1.86 schwarze 397: /*
398: * While elements do require rewinding for themselves,
399: * they never affect rewinding of other nodes.
400: */
1.84 schwarze 401: if (MDOC_ELEM == p->type)
402: return(REWIND_MORE);
1.1 kristaps 403:
1.86 schwarze 404: /*
405: * Blocks delimited by our target token get REWIND_MORE.
1.131 schwarze 406: * Blocks delimiting our target token get REWIND_NONE.
1.86 schwarze 407: */
1.1 kristaps 408: switch (tok) {
1.131 schwarze 409: case MDOC_It:
1.1 kristaps 410: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 411: return(REWIND_NONE);
1.1 kristaps 412: break;
1.131 schwarze 413: case MDOC_Nm:
1.88 schwarze 414: return(REWIND_NONE);
1.131 schwarze 415: case MDOC_Nd:
1.19 kristaps 416: /* FALLTHROUGH */
1.131 schwarze 417: case MDOC_Ss:
1.1 kristaps 418: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 419: return(REWIND_NONE);
1.1 kristaps 420: /* FALLTHROUGH */
1.131 schwarze 421: case MDOC_Sh:
1.138 schwarze 422: if (MDOC_ROOT == p->parent->type)
423: return(REWIND_THIS);
1.84 schwarze 424: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
425: MDOC_Sh == p->tok)
426: return(REWIND_MORE);
1.1 kristaps 427: break;
428: default:
429: break;
430: }
431:
1.86 schwarze 432: /*
433: * Default block rewinding rules.
1.167 schwarze 434: * In particular, let all blocks rewind Nm children.
1.146 schwarze 435: * Do not warn again when closing a block,
436: * since closing the body already warned.
1.86 schwarze 437: */
1.167 schwarze 438: if (MDOC_Nm == p->tok ||
439: MDOC_BLOCK == type || MDOC_BLOCK == p->type)
1.86 schwarze 440: return(REWIND_MORE);
441:
442: /*
1.98 kristaps 443: * By default, closing out full blocks
1.167 schwarze 444: * forces closing of broken explicit blocks.
1.86 schwarze 445: */
1.167 schwarze 446: return (REWIND_FORCE);
1.1 kristaps 447: }
448:
1.149 schwarze 449: static void
1.47 kristaps 450: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 451: {
452: struct mdoc_node *n;
453:
454: n = mdoc->last;
455: if (MDOC_ELEM != n->type)
456: n = n->parent;
457: assert(MDOC_ELEM == n->type);
458: assert(tok == n->tok);
1.149 schwarze 459: rew_last(mdoc, n);
1.1 kristaps 460: }
461:
1.83 schwarze 462: /*
1.168 schwarze 463: * We are trying to close the block *breaker,
1.83 schwarze 464: * but the child block *broken is still open.
1.168 schwarze 465: * Thus, postpone closing the *breaker
1.167 schwarze 466: * until the rew_pending() call closing *broken.
1.83 schwarze 467: */
1.168 schwarze 468: static void
469: make_pending(struct mdoc *mdoc, struct mdoc_node *breaker,
470: struct mdoc_node *broken, int line, int ppos)
1.83 schwarze 471: {
1.168 schwarze 472: struct mdoc_node *n;
1.83 schwarze 473:
1.169 ! schwarze 474: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
! 475: "%s breaks %s", mdoc_macronames[breaker->tok],
! 476: mdoc_macronames[broken->tok]);
1.168 schwarze 477:
1.169 ! schwarze 478: /*
! 479: * If the *broken block (Z) is already broken by a block (B)
! 480: * contained in the breaker (A), make the breaker pending
! 481: * on that inner breaker (B). Graphically,
! 482: *
! 483: * breaker=[A! broken=n=[B!->A (old broken=)[Z->B B] A] Z]
! 484: *
! 485: * In these graphics, "->" indicates the "pending" pointer and
! 486: * "!" indicates the MDOC_BREAK flag. Each of the cases gets
! 487: * one additional pointer (B->A) and one additional flag (A!).
! 488: */
1.83 schwarze 489:
1.169 ! schwarze 490: for (n = broken->parent; ; n = n->parent)
! 491: if (n == broken->pending)
1.168 schwarze 492: broken = n;
1.169 ! schwarze 493: else if (n == breaker)
! 494: break;
! 495:
! 496: /*
! 497: * Found the breaker.
! 498: *
! 499: * If another, outer breaker (X) is already pending on
! 500: * the *broken block (B), we must not clobber the link
! 501: * to the outer breaker, but make it pending on the new,
! 502: * now inner breaker (A). Graphically,
! 503: *
! 504: * [X! n=breaker=[A!->X broken=[B(->X)->A X] A] B].
! 505: */
1.83 schwarze 506:
1.169 ! schwarze 507: if (broken->pending != NULL) {
! 508: n = breaker;
1.83 schwarze 509:
510: /*
1.169 ! schwarze 511: * If the inner breaker (A) is already broken, too,
! 512: * it cannot take on the outer breaker (X) but must
! 513: * hand it on to its own breakers (Y). Graphically,
! 514: *
! 515: * [X! n=[Y!->X breaker=[A!->Y Y] broken=[B(->X)->A X] A] B]
1.83 schwarze 516: */
517:
1.169 ! schwarze 518: while (n->pending)
! 519: n = n->pending;
! 520: n->pending = broken->pending;
! 521: }
! 522:
! 523: /*
! 524: * Now we have reduced the situation to the simplest case:
! 525: * breaker=[A! broken=[B->A A] B].
! 526: */
1.158 schwarze 527:
1.169 ! schwarze 528: broken->pending = breaker;
! 529: breaker->flags |= MDOC_BREAK;
! 530: if (breaker->body != NULL)
! 531: breaker->body->flags |= MDOC_BREAK;
1.83 schwarze 532: }
533:
1.150 schwarze 534: static void
1.131 schwarze 535: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 536: enum mdoct tok, int line, int ppos)
1.1 kristaps 537: {
1.160 schwarze 538: struct mdoc_node *n, *to;
1.1 kristaps 539:
1.160 schwarze 540: to = NULL;
1.119 schwarze 541: n = mdoc->last;
1.84 schwarze 542: while (n) {
543: switch (rew_dohalt(tok, t, n)) {
1.131 schwarze 544: case REWIND_NONE:
1.160 schwarze 545: if (to == NULL)
546: return;
547: n = to;
548: break;
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);
1.160 schwarze 563: to = n;
1.84 schwarze 564: n = n->parent;
565: continue;
1.32 kristaps 566: }
1.84 schwarze 567: break;
1.1 kristaps 568: }
569: assert(n);
1.166 schwarze 570: rew_pending(mdoc, n);
1.1 kristaps 571: }
572:
1.105 kristaps 573: /*
574: * Allocate a word and check whether it's punctuation or not.
575: * Punctuation consists of those tokens found in mdoc_isdelim().
576: */
1.150 schwarze 577: static void
1.123 schwarze 578: dword(struct mdoc *mdoc, int line, int col, const char *p,
579: enum mdelim d, int may_append)
1.105 kristaps 580: {
1.131 schwarze 581:
1.150 schwarze 582: if (d == DELIM_MAX)
1.105 kristaps 583: d = mdoc_isdelim(p);
584:
1.123 schwarze 585: if (may_append &&
1.150 schwarze 586: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
587: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
588: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 589: mdoc_word_append(mdoc, p);
1.150 schwarze 590: return;
1.123 schwarze 591: }
592:
1.150 schwarze 593: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 594:
1.108 schwarze 595: /*
1.144 schwarze 596: * If the word consists of a bare delimiter,
597: * flag the new node accordingly,
598: * unless doing so was vetoed by the invoking macro.
599: * Always clear the veto, it is only valid for one word.
1.108 schwarze 600: */
601:
1.144 schwarze 602: if (d == DELIM_OPEN)
603: mdoc->last->flags |= MDOC_DELIMO;
604: else if (d == DELIM_CLOSE &&
605: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 606: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 607: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 608: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 609: }
1.1 kristaps 610:
1.150 schwarze 611: static void
1.119 schwarze 612: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 613: {
1.153 schwarze 614: char *p;
1.66 kristaps 615: int la;
1.1 kristaps 616:
1.150 schwarze 617: if (buf[*pos] == '\0')
618: return;
1.1 kristaps 619:
620: for (;;) {
1.66 kristaps 621: la = *pos;
1.153 schwarze 622: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 623: break;
1.123 schwarze 624: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 625:
626: /*
627: * If we encounter end-of-sentence symbols, then trigger
628: * the double-space.
629: *
1.109 kristaps 630: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 631: * the last symbol, such that `. )' will cause the
632: * correct double-spacing. However, (1) groff isn't
633: * smart enough to do this and (2) it would require
634: * knowing which symbols break this behaviour, for
1.109 kristaps 635: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 636: */
1.150 schwarze 637:
1.127 schwarze 638: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 639: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 640: }
641: }
642:
643: /*
1.153 schwarze 644: * Parse one word.
645: * If it is a macro, call it and return 1.
646: * Otherwise, allocate it and return 0.
647: */
648: static int
649: macro_or_word(MACRO_PROT_ARGS, int parsed)
650: {
651: char *p;
652: enum mdoct ntok;
653:
654: p = buf + ppos;
655: ntok = MDOC_MAX;
1.157 schwarze 656: if (*p == '"')
1.153 schwarze 657: p++;
1.157 schwarze 658: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 659: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 660:
661: if (ntok == MDOC_MAX) {
662: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
663: mdoc_macros[tok].flags & MDOC_JOIN);
664: return(0);
665: } else {
666: if (mdoc_macros[tok].fp == in_line_eoln)
667: rew_elem(mdoc, tok);
668: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
669: if (tok == MDOC_MAX)
670: append_delims(mdoc, line, pos, buf);
671: return(1);
672: }
673: }
674:
675: /*
1.131 schwarze 676: * Close out block partial/full explicit.
1.1 kristaps 677: */
1.151 schwarze 678: static void
1.1 kristaps 679: blk_exp_close(MACRO_PROT_ARGS)
680: {
1.83 schwarze 681: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 682: struct mdoc_node *endbody; /* Our own end marker. */
1.83 schwarze 683: struct mdoc_node *later; /* A sub-block starting later. */
1.166 schwarze 684: struct mdoc_node *n; /* Search back to our block. */
1.83 schwarze 685:
1.166 schwarze 686: int have_it, j, lastarg, maxargs, nl;
1.55 kristaps 687: enum margserr ac;
1.83 schwarze 688: enum mdoct atok, ntok;
1.1 kristaps 689: char *p;
690:
1.119 schwarze 691: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 692:
1.1 kristaps 693: switch (tok) {
1.131 schwarze 694: case MDOC_Ec:
1.1 kristaps 695: maxargs = 1;
696: break;
1.131 schwarze 697: case MDOC_Ek:
1.125 schwarze 698: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 699: /* FALLTHROUGH */
1.1 kristaps 700: default:
701: maxargs = 0;
702: break;
703: }
704:
1.83 schwarze 705: /*
706: * Search backwards for beginnings of blocks,
707: * both of our own and of pending sub-blocks.
708: */
1.151 schwarze 709:
1.160 schwarze 710: have_it = 0;
1.83 schwarze 711: atok = rew_alt(tok);
1.148 schwarze 712: body = endbody = later = NULL;
1.119 schwarze 713: for (n = mdoc->last; n; n = n->parent) {
1.161 schwarze 714: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.83 schwarze 715: continue;
716:
717: /* Remember the start of our own body. */
1.151 schwarze 718:
1.150 schwarze 719: if (n->type == MDOC_BODY && atok == n->tok) {
1.166 schwarze 720: if (n->end == ENDBODY_NOT) {
1.83 schwarze 721: body = n;
1.166 schwarze 722: n->lastline = line;
723: }
1.83 schwarze 724: continue;
725: }
726:
1.150 schwarze 727: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 728: continue;
1.160 schwarze 729:
730: if (n->tok == MDOC_It) {
731: have_it = 1;
732: continue;
733: }
734:
1.83 schwarze 735: if (atok == n->tok) {
1.166 schwarze 736: n->lastline = line;
1.83 schwarze 737: assert(body);
738:
739: /*
740: * Found the start of our own block.
741: * When there is no pending sub block,
742: * just proceed to closing out.
743: */
1.151 schwarze 744:
1.160 schwarze 745: if (later == NULL ||
746: (tok == MDOC_El && !have_it))
1.83 schwarze 747: break;
748:
1.131 schwarze 749: /*
1.167 schwarze 750: * When there is a pending sub block, postpone
751: * closing out the current block until the
752: * rew_pending() closing out the sub-block.
1.83 schwarze 753: */
1.151 schwarze 754:
1.168 schwarze 755: make_pending(mdoc, n, later, line, ppos);
1.83 schwarze 756:
757: /*
758: * Mark the place where the formatting - but not
759: * the scope - of the current block ends.
760: */
1.151 schwarze 761:
1.166 schwarze 762: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 763: atok, body, ENDBODY_SPACE);
1.151 schwarze 764:
765: /*
766: * If a block closing macro taking arguments
767: * breaks another block, put the arguments
1.166 schwarze 768: * into the end marker.
1.151 schwarze 769: */
770:
1.166 schwarze 771: if (maxargs)
1.148 schwarze 772: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 773: break;
774: }
775:
776: /*
777: * When finding an open sub block, remember the last
778: * open explicit block, or, in case there are only
779: * implicit ones, the first open implicit block.
780: */
1.151 schwarze 781:
1.160 schwarze 782: if (later == NULL ||
783: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.83 schwarze 784: later = n;
785: }
1.166 schwarze 786:
787: if (body == NULL) {
788: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
789: line, ppos, mdoc_macronames[tok]);
790: if (maxargs && endbody == NULL) {
791: /*
792: * Stray .Ec without previous .Eo:
793: * Break the output line, keep the arguments.
794: */
795: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
796: rew_elem(mdoc, MDOC_br);
797: }
798: } else if (endbody == NULL) {
799: rew_last(mdoc, body);
800: if (maxargs)
801: mdoc_tail_alloc(mdoc, line, ppos, atok);
802: }
1.83 schwarze 803:
1.150 schwarze 804: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
805: if (buf[*pos] != '\0')
1.136 schwarze 806: mandoc_vmsg(MANDOCERR_ARG_SKIP,
807: mdoc->parse, line, ppos,
808: "%s %s", mdoc_macronames[tok],
809: buf + *pos);
1.167 schwarze 810: if (endbody == NULL)
811: rew_pending(mdoc, n);
1.151 schwarze 812: return;
1.1 kristaps 813: }
814:
1.166 schwarze 815: if (endbody != NULL)
816: n = endbody;
1.148 schwarze 817: for (j = 0; ; j++) {
1.1 kristaps 818: lastarg = *pos;
819:
1.166 schwarze 820: if (j == maxargs && n != NULL) {
821: rew_pending(mdoc, n);
822: n = NULL;
1.1 kristaps 823: }
824:
1.119 schwarze 825: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 826: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 827: break;
828:
1.155 schwarze 829: ntok = ac == ARGS_QWORD ? MDOC_MAX :
830: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 831:
1.150 schwarze 832: if (ntok == MDOC_MAX) {
833: dword(mdoc, line, lastarg, p, DELIM_MAX,
834: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 835: continue;
836: }
1.1 kristaps 837:
1.166 schwarze 838: if (n != NULL) {
839: rew_pending(mdoc, n);
840: n = NULL;
1.54 kristaps 841: }
1.122 schwarze 842: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 843: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 844: break;
1.1 kristaps 845: }
846:
1.166 schwarze 847: if (n != NULL)
848: rew_pending(mdoc, n);
1.150 schwarze 849: if (nl)
850: append_delims(mdoc, line, pos, buf);
1.1 kristaps 851: }
852:
1.151 schwarze 853: static void
1.1 kristaps 854: in_line(MACRO_PROT_ARGS)
855: {
1.144 schwarze 856: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 857: enum mdoct ntok;
1.55 kristaps 858: enum margserr ac;
1.67 schwarze 859: enum mdelim d;
1.53 kristaps 860: struct mdoc_arg *arg;
861: char *p;
1.1 kristaps 862:
1.119 schwarze 863: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 864:
1.4 kristaps 865: /*
866: * Whether we allow ignored elements (those without content,
867: * usually because of reserved words) to squeak by.
868: */
1.45 kristaps 869:
1.4 kristaps 870: switch (tok) {
1.131 schwarze 871: case MDOC_An:
1.26 kristaps 872: /* FALLTHROUGH */
1.131 schwarze 873: case MDOC_Ar:
1.4 kristaps 874: /* FALLTHROUGH */
1.131 schwarze 875: case MDOC_Fl:
1.4 kristaps 876: /* FALLTHROUGH */
1.131 schwarze 877: case MDOC_Mt:
1.12 kristaps 878: /* FALLTHROUGH */
1.131 schwarze 879: case MDOC_Nm:
1.26 kristaps 880: /* FALLTHROUGH */
1.131 schwarze 881: case MDOC_Pa:
1.4 kristaps 882: nc = 1;
883: break;
884: default:
885: nc = 0;
886: break;
887: }
888:
1.152 schwarze 889: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 890:
1.144 schwarze 891: d = DELIM_NONE;
892: firstarg = 1;
1.142 schwarze 893: mayopen = 1;
1.70 kristaps 894: for (cnt = scope = 0;; ) {
1.1 kristaps 895: la = *pos;
1.119 schwarze 896: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 897:
1.144 schwarze 898: /*
899: * At the end of a macro line,
900: * opening delimiters do not suppress spacing.
901: */
902:
903: if (ac == ARGS_EOLN) {
904: if (d == DELIM_OPEN)
905: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 906: break;
1.144 schwarze 907: }
908:
909: /*
910: * The rest of the macro line is only punctuation,
911: * to be handled by append_delims().
912: * If there were no other arguments,
913: * do not allow the first one to suppress spacing,
914: * even if it turns out to be a closing one.
915: */
916:
917: if (ac == ARGS_PUNCT) {
918: if (cnt == 0 && nc == 0)
919: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 920: break;
1.144 schwarze 921: }
1.1 kristaps 922:
1.145 schwarze 923: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 924: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 925:
1.131 schwarze 926: /*
1.4 kristaps 927: * In this case, we've located a submacro and must
928: * execute it. Close out scope, if open. If no
929: * elements have been generated, either create one (nc)
930: * or raise a warning.
931: */
1.1 kristaps 932:
1.150 schwarze 933: if (ntok != MDOC_MAX) {
1.149 schwarze 934: if (scope)
935: rew_elem(mdoc, tok);
1.150 schwarze 936: if (nc && ! cnt) {
937: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 938: rew_last(mdoc, mdoc->last);
1.150 schwarze 939: } else if ( ! nc && ! cnt) {
1.7 kristaps 940: mdoc_argv_free(arg);
1.135 schwarze 941: mandoc_msg(MANDOCERR_MACRO_EMPTY,
942: mdoc->parse, line, ppos,
943: mdoc_macronames[tok]);
1.7 kristaps 944: }
1.151 schwarze 945: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 946: if (nl)
947: append_delims(mdoc, line, pos, buf);
1.151 schwarze 948: return;
1.131 schwarze 949: }
1.1 kristaps 950:
1.131 schwarze 951: /*
1.4 kristaps 952: * Non-quote-enclosed punctuation. Set up our scope, if
953: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 954: * the word.
1.4 kristaps 955: */
1.1 kristaps 956:
1.150 schwarze 957: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 958:
1.70 kristaps 959: if (DELIM_NONE != d) {
960: /*
961: * If we encounter closing punctuation, no word
1.144 schwarze 962: * has been emitted, no scope is open, and we're
1.70 kristaps 963: * allowed to have an empty element, then start
1.142 schwarze 964: * a new scope.
1.70 kristaps 965: */
1.142 schwarze 966: if ((d == DELIM_CLOSE ||
967: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 968: !cnt && !scope && nc && mayopen) {
1.150 schwarze 969: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 970: scope = 1;
1.142 schwarze 971: cnt++;
1.150 schwarze 972: if (tok == MDOC_Nm)
1.142 schwarze 973: mayopen = 0;
1.70 kristaps 974: }
975: /*
976: * Close out our scope, if one is open, before
977: * any punctuation.
978: */
1.149 schwarze 979: if (scope)
980: rew_elem(mdoc, tok);
1.70 kristaps 981: scope = 0;
1.145 schwarze 982: if (tok == MDOC_Fn)
983: mayopen = 0;
1.142 schwarze 984: } else if (mayopen && !scope) {
1.150 schwarze 985: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 986: scope = 1;
1.142 schwarze 987: cnt++;
1.1 kristaps 988: }
1.105 kristaps 989:
1.150 schwarze 990: dword(mdoc, line, la, p, d,
991: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 992:
993: /*
1.144 schwarze 994: * If the first argument is a closing delimiter,
995: * do not suppress spacing before it.
996: */
997:
998: if (firstarg && d == DELIM_CLOSE && !nc)
999: mdoc->last->flags &= ~MDOC_DELIMC;
1000: firstarg = 0;
1001:
1002: /*
1.39 kristaps 1003: * `Fl' macros have their scope re-opened with each new
1004: * word so that the `-' can be added to each one without
1005: * having to parse out spaces.
1006: */
1.150 schwarze 1007: if (scope && tok == MDOC_Fl) {
1.149 schwarze 1008: rew_elem(mdoc, tok);
1.70 kristaps 1009: scope = 0;
1.39 kristaps 1010: }
1.1 kristaps 1011: }
1012:
1.149 schwarze 1013: if (scope)
1014: rew_elem(mdoc, tok);
1.4 kristaps 1015:
1016: /*
1017: * If no elements have been collected and we're allowed to have
1018: * empties (nc), open a scope and close it out. Otherwise,
1019: * raise a warning.
1020: */
1.45 kristaps 1021:
1.150 schwarze 1022: if ( ! cnt) {
1023: if (nc) {
1024: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1025: rew_last(mdoc, mdoc->last);
1026: } else {
1027: mdoc_argv_free(arg);
1028: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1029: line, ppos, mdoc_macronames[tok]);
1030: }
1.7 kristaps 1031: }
1.150 schwarze 1032: if (nl)
1033: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1034: }
1035:
1.151 schwarze 1036: static void
1.1 kristaps 1037: blk_full(MACRO_PROT_ARGS)
1038: {
1.153 schwarze 1039: int la, nl, parsed;
1.1 kristaps 1040: struct mdoc_arg *arg;
1.165 schwarze 1041: struct mdoc_node *blk; /* Our own block. */
1042: struct mdoc_node *head; /* Our own head. */
1043: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 1044: struct mdoc_node *n;
1.59 kristaps 1045: enum margserr ac, lac;
1.1 kristaps 1046: char *p;
1047:
1.119 schwarze 1048: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 1049:
1050: /* Skip items outside lists. */
1051:
1052: if (tok == MDOC_It) {
1053: for (n = mdoc->last; n; n = n->parent)
1.158 schwarze 1054: if (n->tok == MDOC_Bl && n->type == MDOC_BLOCK &&
1055: ! (n->flags & (MDOC_VALID | MDOC_BREAK)))
1.138 schwarze 1056: break;
1057: if (n == NULL) {
1058: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1059: line, ppos, "It %s", buf + *pos);
1.150 schwarze 1060: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 1061: rew_elem(mdoc, MDOC_br);
1.151 schwarze 1062: return;
1.138 schwarze 1063: }
1064: }
1.63 kristaps 1065:
1.45 kristaps 1066: /* Close out prior implicit scope. */
1.19 kristaps 1067:
1.150 schwarze 1068: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
1069: rew_sub(MDOC_BODY, mdoc, tok, line, ppos);
1070: rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos);
1.1 kristaps 1071: }
1072:
1.45 kristaps 1073: /*
1.109 kristaps 1074: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1075: * macro openings. Implicit ones first close out prior scope
1076: * (seen above). Delay opening the head until necessary to
1077: * allow leading punctuation to print. Special consideration
1078: * for `It -column', which has phrase-part syntax instead of
1079: * regular child nodes.
1080: */
1081:
1.152 schwarze 1082: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1083: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1084: head = body = NULL;
1.115 schwarze 1085:
1086: /*
1087: * Exception: Heads of `It' macros in `-diag' lists are not
1088: * parsed, even though `It' macros in general are parsed.
1089: */
1.151 schwarze 1090:
1.153 schwarze 1091: parsed = tok != MDOC_It ||
1092: mdoc->last->parent->tok != MDOC_Bl ||
1093: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1094:
1.45 kristaps 1095: /*
1096: * The `Nd' macro has all arguments in its body: it's a hybrid
1097: * of block partial-explicit and full-implicit. Stupid.
1098: */
1.19 kristaps 1099:
1.150 schwarze 1100: if (tok == MDOC_Nd) {
1101: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1102: rew_last(mdoc, head);
1.150 schwarze 1103: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1104: }
1105:
1.150 schwarze 1106: if (tok == MDOC_Bk)
1.123 schwarze 1107: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1108:
1.150 schwarze 1109: ac = ARGS_PEND;
1110: for (;;) {
1.45 kristaps 1111: la = *pos;
1.150 schwarze 1112: lac = ac;
1.119 schwarze 1113: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1114: if (ac == ARGS_PUNCT)
1.89 schwarze 1115: break;
1.150 schwarze 1116: if (ac == ARGS_EOLN) {
1117: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1118: break;
1119: /*
1120: * This is necessary: if the last token on a
1121: * line is a `Ta' or tab, then we'll get
1122: * ARGS_EOLN, so we must be smart enough to
1123: * reopen our scope if the last parse was a
1124: * phrase or partial phrase.
1125: */
1.167 schwarze 1126: if (body != NULL)
1127: rew_last(mdoc, body);
1.150 schwarze 1128: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1129: break;
1.75 kristaps 1130: }
1.45 kristaps 1131:
1.131 schwarze 1132: /*
1.73 kristaps 1133: * Emit leading punctuation (i.e., punctuation before
1134: * the MDOC_HEAD) for non-phrase types.
1135: */
1.45 kristaps 1136:
1.150 schwarze 1137: if (head == NULL &&
1138: ac != ARGS_PEND &&
1139: ac != ARGS_PHRASE &&
1140: ac != ARGS_PPHRASE &&
1141: ac != ARGS_QWORD &&
1142: mdoc_isdelim(p) == DELIM_OPEN) {
1143: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1144: continue;
1145: }
1146:
1.74 kristaps 1147: /* Open a head if one hasn't been opened. */
1.45 kristaps 1148:
1.150 schwarze 1149: if (head == NULL)
1150: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1151:
1.150 schwarze 1152: if (ac == ARGS_PHRASE ||
1153: ac == ARGS_PEND ||
1154: ac == ARGS_PPHRASE) {
1.151 schwarze 1155:
1.73 kristaps 1156: /*
1.74 kristaps 1157: * If we haven't opened a body yet, rewind the
1158: * head; if we have, rewind that instead.
1159: */
1160:
1.167 schwarze 1161: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1162: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1163:
1164: /*
1.73 kristaps 1165: * Process phrases: set whether we're in a
1166: * partial-phrase (this effects line handling)
1167: * then call down into the phrase parser.
1168: */
1.74 kristaps 1169:
1.150 schwarze 1170: if (ac == ARGS_PPHRASE)
1.119 schwarze 1171: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1172: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1173: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1174: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1175: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1176: continue;
1177: }
1178:
1.153 schwarze 1179: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1180: break;
1.45 kristaps 1181: }
1.1 kristaps 1182:
1.165 schwarze 1183: if (blk->flags & MDOC_VALID)
1184: return;
1.150 schwarze 1185: if (head == NULL)
1186: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1187: if (nl)
1188: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1189: if (body != NULL)
1.77 kristaps 1190: goto out;
1.19 kristaps 1191:
1.47 kristaps 1192: /*
1.49 kristaps 1193: * If there is an open (i.e., unvalidated) sub-block requiring
1194: * explicit close-out, postpone switching the current block from
1.167 schwarze 1195: * head to body until the rew_pending() call closing out that
1.49 kristaps 1196: * sub-block.
1.47 kristaps 1197: */
1.119 schwarze 1198: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1199: if (n->type == MDOC_BLOCK &&
1200: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1201: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1202: n->pending = head;
1.151 schwarze 1203: return;
1.47 kristaps 1204: }
1205: }
1206:
1.45 kristaps 1207: /* Close out scopes to remain in a consistent state. */
1208:
1.167 schwarze 1209: rew_last(mdoc, head);
1210: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1211: out:
1.150 schwarze 1212: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1213: rew_last(mdoc, body);
1214: rew_last(mdoc, blk);
1.150 schwarze 1215: mdoc->flags &= ~MDOC_FREECOL;
1216: }
1.1 kristaps 1217: }
1218:
1.151 schwarze 1219: static void
1.1 kristaps 1220: blk_part_imp(MACRO_PROT_ARGS)
1221: {
1.63 kristaps 1222: int la, nl;
1.55 kristaps 1223: enum margserr ac;
1.1 kristaps 1224: char *p;
1.43 kristaps 1225: struct mdoc_node *blk; /* saved block context */
1226: struct mdoc_node *body; /* saved body context */
1227: struct mdoc_node *n;
1.1 kristaps 1228:
1.119 schwarze 1229: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1230:
1.43 kristaps 1231: /*
1232: * A macro that spans to the end of the line. This is generally
1233: * (but not necessarily) called as the first macro. The block
1234: * has a head as the immediate child, which is always empty,
1235: * followed by zero or more opening punctuation nodes, then the
1236: * body (which may be empty, depending on the macro), then zero
1237: * or more closing punctuation nodes.
1238: */
1.32 kristaps 1239:
1.150 schwarze 1240: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1241: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1242:
1.43 kristaps 1243: /*
1244: * Open the body scope "on-demand", that is, after we've
1245: * processed all our the leading delimiters (open parenthesis,
1246: * etc.).
1247: */
1.1 kristaps 1248:
1.43 kristaps 1249: for (body = NULL; ; ) {
1.32 kristaps 1250: la = *pos;
1.119 schwarze 1251: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1252: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1253: break;
1254:
1.150 schwarze 1255: if (body == NULL && ac != ARGS_QWORD &&
1256: mdoc_isdelim(p) == DELIM_OPEN) {
1257: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1258: continue;
1.123 schwarze 1259: }
1.1 kristaps 1260:
1.150 schwarze 1261: if (body == NULL)
1262: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1263:
1.153 schwarze 1264: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1265: break;
1.1 kristaps 1266: }
1.150 schwarze 1267: if (body == NULL)
1268: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1269:
1.83 schwarze 1270: /*
1271: * If there is an open sub-block requiring explicit close-out,
1.167 schwarze 1272: * postpone closing out the current block until the
1273: * rew_pending() call closing out the sub-block.
1.83 schwarze 1274: */
1.151 schwarze 1275:
1.119 schwarze 1276: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1277: n = n->parent) {
1.150 schwarze 1278: if (n->type == MDOC_BLOCK &&
1279: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1280: ! (n->flags & MDOC_VALID)) {
1.168 schwarze 1281: make_pending(mdoc, blk, n, line, ppos);
1.150 schwarze 1282: mdoc_endbody_alloc(mdoc, line, ppos,
1283: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1284: return;
1.83 schwarze 1285: }
1286: }
1.134 schwarze 1287: assert(n == body);
1.164 schwarze 1288: rew_last(mdoc, body);
1.150 schwarze 1289: if (nl)
1290: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1291: rew_pending(mdoc, blk);
1.117 schwarze 1292:
1293: /* Move trailing .Ns out of scope. */
1294:
1295: for (n = body->child; n && n->next; n = n->next)
1296: /* Do nothing. */ ;
1.150 schwarze 1297: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1298: mdoc_node_relink(mdoc, n);
1.1 kristaps 1299: }
1300:
1.151 schwarze 1301: static void
1.1 kristaps 1302: blk_part_exp(MACRO_PROT_ARGS)
1303: {
1.60 kristaps 1304: int la, nl;
1.55 kristaps 1305: enum margserr ac;
1.43 kristaps 1306: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1307: char *p;
1308:
1.119 schwarze 1309: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1310:
1.43 kristaps 1311: /*
1312: * The opening of an explicit macro having zero or more leading
1313: * punctuation nodes; a head with optional single element (the
1314: * case of `Eo'); and a body that may be empty.
1315: */
1.32 kristaps 1316:
1.150 schwarze 1317: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1318: head = NULL;
1319: for (;;) {
1.32 kristaps 1320: la = *pos;
1.119 schwarze 1321: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1322: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1323: break;
1.43 kristaps 1324:
1325: /* Flush out leading punctuation. */
1326:
1.150 schwarze 1327: if (head == NULL && ac != ARGS_QWORD &&
1328: mdoc_isdelim(p) == DELIM_OPEN) {
1329: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1330: continue;
1.123 schwarze 1331: }
1.43 kristaps 1332:
1.150 schwarze 1333: if (head == NULL) {
1334: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1335: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1336: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1337: rew_last(mdoc, head);
1338: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1339: if (tok == MDOC_Eo)
1.43 kristaps 1340: continue;
1.1 kristaps 1341: }
1.43 kristaps 1342:
1.153 schwarze 1343: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1344: break;
1.1 kristaps 1345: }
1346:
1.43 kristaps 1347: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1348:
1.163 schwarze 1349: if (head == NULL) {
1350: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1351: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1352: }
1.150 schwarze 1353: if (nl)
1354: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1355: }
1356:
1.151 schwarze 1357: static void
1.1 kristaps 1358: in_line_argn(MACRO_PROT_ARGS)
1359: {
1.60 kristaps 1360: int la, flushed, j, maxargs, nl;
1.55 kristaps 1361: enum margserr ac;
1.53 kristaps 1362: struct mdoc_arg *arg;
1363: char *p;
1364: enum mdoct ntok;
1.1 kristaps 1365:
1.156 schwarze 1366: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1367:
1.46 kristaps 1368: /*
1369: * A line macro that has a fixed number of arguments (maxargs).
1370: * Only open the scope once the first non-leading-punctuation is
1371: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1372: * keep it open until the maximum number of arguments are
1373: * exhausted.
1374: */
1.1 kristaps 1375:
1376: switch (tok) {
1.131 schwarze 1377: case MDOC_Ap:
1.1 kristaps 1378: /* FALLTHROUGH */
1.131 schwarze 1379: case MDOC_Ns:
1.1 kristaps 1380: /* FALLTHROUGH */
1.131 schwarze 1381: case MDOC_Ux:
1.1 kristaps 1382: maxargs = 0;
1383: break;
1.131 schwarze 1384: case MDOC_Bx:
1.101 kristaps 1385: /* FALLTHROUGH */
1.132 schwarze 1386: case MDOC_Es:
1387: /* FALLTHROUGH */
1.131 schwarze 1388: case MDOC_Xr:
1.42 kristaps 1389: maxargs = 2;
1390: break;
1.1 kristaps 1391: default:
1392: maxargs = 1;
1393: break;
1394: }
1395:
1.152 schwarze 1396: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1397:
1.156 schwarze 1398: p = NULL;
1399: flushed = j = 0;
1400: for (;;) {
1.32 kristaps 1401: la = *pos;
1.119 schwarze 1402: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 schwarze 1403: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1404: if (j < 2 && tok == MDOC_Pf)
1405: mandoc_vmsg(MANDOCERR_PF_SKIP,
1406: mdoc->parse, line, ppos, "Pf %s",
1407: p == NULL ? "at eol" : p);
1.1 kristaps 1408: break;
1.156 schwarze 1409: }
1.1 kristaps 1410:
1.150 schwarze 1411: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1412: ac != ARGS_QWORD && j == 0 &&
1413: mdoc_isdelim(p) == DELIM_OPEN) {
1414: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1415: continue;
1.150 schwarze 1416: } else if (j == 0)
1417: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1418:
1419: if (j == maxargs && ! flushed) {
1.149 schwarze 1420: rew_elem(mdoc, tok);
1.46 kristaps 1421: flushed = 1;
1422: }
1423:
1.156 schwarze 1424: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1425: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1426:
1.150 schwarze 1427: if (ntok != MDOC_MAX) {
1.149 schwarze 1428: if ( ! flushed)
1429: rew_elem(mdoc, tok);
1.1 kristaps 1430: flushed = 1;
1.151 schwarze 1431: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1432: j++;
1.1 kristaps 1433: break;
1434: }
1435:
1.150 schwarze 1436: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1437: ac != ARGS_QWORD && ! flushed &&
1438: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1439: rew_elem(mdoc, tok);
1.1 kristaps 1440: flushed = 1;
1441: }
1.42 kristaps 1442:
1.150 schwarze 1443: dword(mdoc, line, la, p, DELIM_MAX,
1444: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1445: j++;
1.1 kristaps 1446: }
1447:
1.156 schwarze 1448: if (j == 0) {
1.150 schwarze 1449: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 schwarze 1450: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1451: append_delims(mdoc, line, pos, buf);
1452: }
1.149 schwarze 1453: if ( ! flushed)
1454: rew_elem(mdoc, tok);
1.150 schwarze 1455: if (nl)
1456: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1457: }
1458:
1.151 schwarze 1459: static void
1.1 kristaps 1460: in_line_eoln(MACRO_PROT_ARGS)
1461: {
1.53 kristaps 1462: struct mdoc_arg *arg;
1.1 kristaps 1463:
1.90 schwarze 1464: if (tok == MDOC_Pp)
1.119 schwarze 1465: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1466:
1.152 schwarze 1467: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1468: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1469: if (parse_rest(mdoc, tok, line, pos, buf))
1470: return;
1471: rew_elem(mdoc, tok);
1472: }
1473:
1474: /*
1475: * The simplest argument parser available: Parse the remaining
1476: * words until the end of the phrase or line and return 0
1477: * or until the next macro, call that macro, and return 1.
1478: */
1479: static int
1480: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1481: {
1482: int la;
1.1 kristaps 1483:
1484: for (;;) {
1485: la = *pos;
1.153 schwarze 1486: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1487: return(0);
1.153 schwarze 1488: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1489: return(1);
1.1 kristaps 1490: }
1491: }
1492:
1.151 schwarze 1493: static void
1.41 kristaps 1494: ctx_synopsis(MACRO_PROT_ARGS)
1495: {
1.60 kristaps 1496:
1.151 schwarze 1497: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1498: in_line(mdoc, tok, line, ppos, pos, buf);
1499: else if (tok == MDOC_Nm)
1500: blk_full(mdoc, tok, line, ppos, pos, buf);
1501: else {
1502: assert(tok == MDOC_Vt);
1503: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1504: }
1.1 kristaps 1505: }
1506:
1.24 kristaps 1507: /*
1508: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1509: * They're unusual because they're basically free-form text until a
1510: * macro is encountered.
1511: */
1.151 schwarze 1512: static void
1.75 kristaps 1513: phrase_ta(MACRO_PROT_ARGS)
1514: {
1.167 schwarze 1515: struct mdoc_node *body, *n;
1.75 kristaps 1516:
1.121 schwarze 1517: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1518:
1.167 schwarze 1519: body = NULL;
1520: for (n = mdoc->last; n != NULL; n = n->parent) {
1521: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1522: continue;
1523: if (n->tok == MDOC_It && n->type == MDOC_BODY)
1524: body = n;
1525: if (n->tok == MDOC_Bl)
1526: break;
1527: }
1528:
1.151 schwarze 1529: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1530: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1531: line, ppos, "Ta");
1.151 schwarze 1532: return;
1.121 schwarze 1533: }
1.75 kristaps 1534:
1.121 schwarze 1535: /* Advance to the next column. */
1.150 schwarze 1536:
1.167 schwarze 1537: rew_last(mdoc, body);
1.150 schwarze 1538: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1539: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1540: }
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