Annotation of mandoc/mdoc_macro.c, Revision 1.202
1.202 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.201 2015/09/26 00:54:04 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: *
1.184 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8 kristaps 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:
1.184 schwarze 29: #include "mandoc.h"
30: #include "roff.h"
1.106 kristaps 31: #include "mdoc.h"
1.184 schwarze 32: #include "libmandoc.h"
1.190 schwarze 33: #include "roff_int.h"
1.1 kristaps 34: #include "libmdoc.h"
35:
1.151 schwarze 36: static void blk_full(MACRO_PROT_ARGS);
37: static void blk_exp_close(MACRO_PROT_ARGS);
38: static void blk_part_exp(MACRO_PROT_ARGS);
39: static void blk_part_imp(MACRO_PROT_ARGS);
40: static void ctx_synopsis(MACRO_PROT_ARGS);
41: static void in_line_eoln(MACRO_PROT_ARGS);
42: static void in_line_argn(MACRO_PROT_ARGS);
43: static void in_line(MACRO_PROT_ARGS);
44: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 45:
1.189 schwarze 46: static void append_delims(struct roff_man *, int, int *, char *);
47: static void dword(struct roff_man *, int, int, const char *,
1.187 schwarze 48: enum mdelim, int);
1.189 schwarze 49: static int find_pending(struct roff_man *, int, int, int,
1.187 schwarze 50: struct roff_node *);
1.189 schwarze 51: static int lookup(struct roff_man *, int, int, int, const char *);
1.153 schwarze 52: static int macro_or_word(MACRO_PROT_ARGS, int);
1.189 schwarze 53: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.185 schwarze 54: static int rew_alt(int);
1.189 schwarze 55: static void rew_elem(struct roff_man *, int);
56: static void rew_last(struct roff_man *, const struct roff_node *);
57: static void rew_pending(struct roff_man *,
58: const struct roff_node *);
1.1 kristaps 59:
60: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 61: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 62: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
63: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
64: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 65: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
66: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
67: { in_line_eoln, 0 }, /* Pp */
68: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
69: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 72: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 73: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
74: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 83: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
85: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 90: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
92: { blk_full, MDOC_JOIN }, /* Nd */
93: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 94: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
97: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 100: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 101: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 102: { in_line_eoln, MDOC_JOIN }, /* %A */
103: { in_line_eoln, MDOC_JOIN }, /* %B */
104: { in_line_eoln, MDOC_JOIN }, /* %D */
105: { in_line_eoln, MDOC_JOIN }, /* %I */
106: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 110: { in_line_eoln, MDOC_JOIN }, /* %R */
111: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 112: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 113: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
115: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
116: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
117: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 118: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 119: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
120: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
121: { blk_full, MDOC_EXPLICIT }, /* Bf */
122: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
123: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
127: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 128: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
131: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
132: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
133: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
134: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
135: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 136: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 138: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 139: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 144: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
145: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
148: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
150: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
153: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
154: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
155: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
156: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 157: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 158: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
160: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
161: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
162: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 163: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 164: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
165: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 166: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 167: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 168: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
169: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 170: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
171: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
173: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
175: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
176: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 177: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 178: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 179: { in_line_eoln, 0 }, /* Bt */
180: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 181: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 182: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 183: { in_line, 0 }, /* Lb */
1.123 schwarze 184: { in_line_eoln, 0 }, /* Lp */
185: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
186: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
187: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
188: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
190: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
191: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
192: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
194: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 195: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 196: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 197: { in_line_eoln, 0 }, /* br */
198: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 199: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 200: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 201: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 202: };
203:
204: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
205:
206:
207: /*
208: * This is called at the end of parsing. It must traverse up the tree,
209: * closing out open [implicit] scopes. Obviously, open explicit scopes
210: * are errors.
211: */
1.151 schwarze 212: void
1.195 schwarze 213: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 214: {
1.185 schwarze 215: struct roff_node *n;
1.1 kristaps 216:
217: /* Scan for open explicit scopes. */
218:
1.151 schwarze 219: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 220: mdoc->last->parent : mdoc->last;
1.1 kristaps 221:
1.94 schwarze 222: for ( ; n; n = n->parent)
1.184 schwarze 223: if (n->type == ROFFT_BLOCK &&
1.151 schwarze 224: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 225: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
226: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 227:
1.32 kristaps 228: /* Rewind to the first. */
229:
1.149 schwarze 230: rew_last(mdoc, mdoc->first);
1.1 kristaps 231: }
232:
1.32 kristaps 233: /*
1.153 schwarze 234: * Look up the macro at *p called by "from",
1.191 schwarze 235: * or as a line macro if from == TOKEN_NONE.
1.32 kristaps 236: */
1.185 schwarze 237: static int
1.189 schwarze 238: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28 kristaps 239: {
1.185 schwarze 240: int res;
1.1 kristaps 241:
1.191 schwarze 242: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.153 schwarze 243: res = mdoc_hash_find(p);
1.191 schwarze 244: if (res != TOKEN_NONE) {
1.155 schwarze 245: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.202 ! schwarze 246: return res;
1.155 schwarze 247: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
248: mandoc_msg(MANDOCERR_MACRO_CALL,
249: mdoc->parse, line, ppos, p);
250: }
1.153 schwarze 251: }
1.202 ! schwarze 252: return TOKEN_NONE;
1.1 kristaps 253: }
254:
1.166 schwarze 255: /*
256: * Rewind up to and including a specific node.
257: */
1.149 schwarze 258: static void
1.189 schwarze 259: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 260: {
1.199 schwarze 261: struct roff_node *np;
1.1 kristaps 262:
1.186 schwarze 263: if (to->flags & MDOC_VALID)
264: return;
265:
1.1 kristaps 266: while (mdoc->last != to) {
1.100 kristaps 267: /*
268: * Save the parent here, because we may delete the
1.119 schwarze 269: * mdoc->last node in the post-validation phase and reset
270: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 271: * out to be lost.
272: */
273: np = mdoc->last->parent;
1.149 schwarze 274: mdoc_valid_post(mdoc);
1.100 kristaps 275: mdoc->last = np;
1.1 kristaps 276: assert(mdoc->last);
277: }
1.200 schwarze 278: mdoc->next = ROFF_NEXT_SIBLING;
1.149 schwarze 279: mdoc_valid_post(mdoc);
1.1 kristaps 280: }
281:
1.32 kristaps 282: /*
1.166 schwarze 283: * Rewind up to a specific block, including all blocks that broke it.
284: */
285: static void
1.189 schwarze 286: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166 schwarze 287: {
288:
1.183 schwarze 289: for (;;) {
290: rew_last(mdoc, n);
291:
1.194 schwarze 292: if (mdoc->last == n) {
293: switch (n->type) {
294: case ROFFT_HEAD:
295: roff_body_alloc(mdoc, n->line, n->pos,
296: n->tok);
297: return;
298: case ROFFT_BLOCK:
299: break;
300: default:
301: return;
302: }
303: if ( ! (n->flags & MDOC_BROKEN))
304: return;
305: } else
306: n = mdoc->last;
1.166 schwarze 307:
1.183 schwarze 308: for (;;) {
309: if ((n = n->parent) == NULL)
310: return;
311:
1.184 schwarze 312: if (n->type == ROFFT_BLOCK ||
313: n->type == ROFFT_HEAD) {
1.183 schwarze 314: if (n->flags & MDOC_ENDED)
315: break;
316: else
317: return;
318: }
319: }
1.166 schwarze 320: }
321: }
322:
323: /*
1.84 schwarze 324: * For a block closing macro, return the corresponding opening one.
325: * Otherwise, return the macro itself.
1.32 kristaps 326: */
1.185 schwarze 327: static int
328: rew_alt(int tok)
1.1 kristaps 329: {
330: switch (tok) {
1.131 schwarze 331: case MDOC_Ac:
1.202 ! schwarze 332: return MDOC_Ao;
1.131 schwarze 333: case MDOC_Bc:
1.202 ! schwarze 334: return MDOC_Bo;
1.131 schwarze 335: case MDOC_Brc:
1.202 ! schwarze 336: return MDOC_Bro;
1.131 schwarze 337: case MDOC_Dc:
1.202 ! schwarze 338: return MDOC_Do;
1.131 schwarze 339: case MDOC_Ec:
1.202 ! schwarze 340: return MDOC_Eo;
1.131 schwarze 341: case MDOC_Ed:
1.202 ! schwarze 342: return MDOC_Bd;
1.131 schwarze 343: case MDOC_Ef:
1.202 ! schwarze 344: return MDOC_Bf;
1.131 schwarze 345: case MDOC_Ek:
1.202 ! schwarze 346: return MDOC_Bk;
1.131 schwarze 347: case MDOC_El:
1.202 ! schwarze 348: return MDOC_Bl;
1.131 schwarze 349: case MDOC_Fc:
1.202 ! schwarze 350: return MDOC_Fo;
1.131 schwarze 351: case MDOC_Oc:
1.202 ! schwarze 352: return MDOC_Oo;
1.131 schwarze 353: case MDOC_Pc:
1.202 ! schwarze 354: return MDOC_Po;
1.131 schwarze 355: case MDOC_Qc:
1.202 ! schwarze 356: return MDOC_Qo;
1.131 schwarze 357: case MDOC_Re:
1.202 ! schwarze 358: return MDOC_Rs;
1.131 schwarze 359: case MDOC_Sc:
1.202 ! schwarze 360: return MDOC_So;
1.131 schwarze 361: case MDOC_Xc:
1.202 ! schwarze 362: return MDOC_Xo;
1.1 kristaps 363: default:
1.202 ! schwarze 364: return tok;
1.1 kristaps 365: }
366: }
367:
1.149 schwarze 368: static void
1.189 schwarze 369: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 370: {
1.185 schwarze 371: struct roff_node *n;
1.1 kristaps 372:
373: n = mdoc->last;
1.184 schwarze 374: if (n->type != ROFFT_ELEM)
1.1 kristaps 375: n = n->parent;
1.184 schwarze 376: assert(n->type == ROFFT_ELEM);
1.1 kristaps 377: assert(tok == n->tok);
1.149 schwarze 378: rew_last(mdoc, n);
1.1 kristaps 379: }
380:
1.83 schwarze 381: /*
1.187 schwarze 382: * If there is an open sub-block of the target requiring
383: * explicit close-out, postpone closing out the target until
384: * the rew_pending() call closing out the sub-block.
385: */
386: static int
1.189 schwarze 387: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187 schwarze 388: struct roff_node *target)
389: {
390: struct roff_node *n;
391: int irc;
392:
393: irc = 0;
394: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
395: if (n->flags & MDOC_ENDED) {
396: if ( ! (n->flags & MDOC_VALID))
397: n->flags |= MDOC_BROKEN;
398: continue;
399: }
400: if (n->type == ROFFT_BLOCK &&
401: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
402: irc = 1;
403: n->flags = MDOC_BROKEN;
404: if (target->type == ROFFT_HEAD)
405: target->flags = MDOC_ENDED;
406: else if ( ! (target->flags & MDOC_ENDED)) {
407: mandoc_vmsg(MANDOCERR_BLK_NEST,
408: mdoc->parse, line, ppos,
409: "%s breaks %s", mdoc_macronames[tok],
410: mdoc_macronames[n->tok]);
411: mdoc_endbody_alloc(mdoc, line, ppos,
412: tok, target, ENDBODY_NOSPACE);
413: }
414: }
415: }
1.202 ! schwarze 416: return irc;
1.187 schwarze 417: }
418:
419: /*
1.105 kristaps 420: * Allocate a word and check whether it's punctuation or not.
421: * Punctuation consists of those tokens found in mdoc_isdelim().
422: */
1.150 schwarze 423: static void
1.189 schwarze 424: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123 schwarze 425: enum mdelim d, int may_append)
1.105 kristaps 426: {
1.131 schwarze 427:
1.150 schwarze 428: if (d == DELIM_MAX)
1.105 kristaps 429: d = mdoc_isdelim(p);
430:
1.123 schwarze 431: if (may_append &&
1.150 schwarze 432: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 schwarze 433: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 434: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192 schwarze 435: roff_word_append(mdoc, p);
1.150 schwarze 436: return;
1.123 schwarze 437: }
438:
1.192 schwarze 439: roff_word_alloc(mdoc, line, col, p);
1.105 kristaps 440:
1.108 schwarze 441: /*
1.144 schwarze 442: * If the word consists of a bare delimiter,
443: * flag the new node accordingly,
444: * unless doing so was vetoed by the invoking macro.
445: * Always clear the veto, it is only valid for one word.
1.108 schwarze 446: */
447:
1.144 schwarze 448: if (d == DELIM_OPEN)
449: mdoc->last->flags |= MDOC_DELIMO;
450: else if (d == DELIM_CLOSE &&
451: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 452: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 453: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 454: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 455: }
1.1 kristaps 456:
1.150 schwarze 457: static void
1.189 schwarze 458: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 459: {
1.153 schwarze 460: char *p;
1.66 kristaps 461: int la;
1.1 kristaps 462:
1.150 schwarze 463: if (buf[*pos] == '\0')
464: return;
1.1 kristaps 465:
466: for (;;) {
1.66 kristaps 467: la = *pos;
1.191 schwarze 468: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
469: ARGS_EOLN)
1.1 kristaps 470: break;
1.123 schwarze 471: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 472:
473: /*
474: * If we encounter end-of-sentence symbols, then trigger
475: * the double-space.
476: *
1.109 kristaps 477: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 478: * the last symbol, such that `. )' will cause the
479: * correct double-spacing. However, (1) groff isn't
480: * smart enough to do this and (2) it would require
481: * knowing which symbols break this behaviour, for
1.109 kristaps 482: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 483: */
1.150 schwarze 484:
1.127 schwarze 485: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 486: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 487: }
488: }
489:
490: /*
1.153 schwarze 491: * Parse one word.
492: * If it is a macro, call it and return 1.
493: * Otherwise, allocate it and return 0.
494: */
495: static int
496: macro_or_word(MACRO_PROT_ARGS, int parsed)
497: {
498: char *p;
1.185 schwarze 499: int ntok;
1.153 schwarze 500:
501: p = buf + ppos;
1.191 schwarze 502: ntok = TOKEN_NONE;
1.157 schwarze 503: if (*p == '"')
1.153 schwarze 504: p++;
1.157 schwarze 505: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 506: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 507:
1.191 schwarze 508: if (ntok == TOKEN_NONE) {
509: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153 schwarze 510: mdoc_macros[tok].flags & MDOC_JOIN);
1.202 ! schwarze 511: return 0;
1.153 schwarze 512: } else {
513: if (mdoc_macros[tok].fp == in_line_eoln)
514: rew_elem(mdoc, tok);
515: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191 schwarze 516: if (tok == TOKEN_NONE)
1.153 schwarze 517: append_delims(mdoc, line, pos, buf);
1.202 ! schwarze 518: return 1;
1.153 schwarze 519: }
520: }
521:
522: /*
1.131 schwarze 523: * Close out block partial/full explicit.
1.1 kristaps 524: */
1.151 schwarze 525: static void
1.1 kristaps 526: blk_exp_close(MACRO_PROT_ARGS)
527: {
1.185 schwarze 528: struct roff_node *body; /* Our own body. */
529: struct roff_node *endbody; /* Our own end marker. */
530: struct roff_node *itblk; /* An It block starting later. */
531: struct roff_node *later; /* A sub-block starting later. */
532: struct roff_node *n; /* Search back to our block. */
1.188 schwarze 533: struct roff_node *target; /* For find_pending(). */
1.83 schwarze 534:
1.188 schwarze 535: int j, lastarg, maxargs, nl, pending;
1.55 kristaps 536: enum margserr ac;
1.185 schwarze 537: int atok, ntok;
1.1 kristaps 538: char *p;
539:
1.119 schwarze 540: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 541:
1.1 kristaps 542: switch (tok) {
1.131 schwarze 543: case MDOC_Ec:
1.1 kristaps 544: maxargs = 1;
545: break;
1.131 schwarze 546: case MDOC_Ek:
1.125 schwarze 547: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 548: /* FALLTHROUGH */
1.1 kristaps 549: default:
550: maxargs = 0;
551: break;
552: }
553:
1.83 schwarze 554: /*
555: * Search backwards for beginnings of blocks,
556: * both of our own and of pending sub-blocks.
557: */
1.151 schwarze 558:
1.83 schwarze 559: atok = rew_alt(tok);
1.171 schwarze 560: body = endbody = itblk = later = NULL;
1.119 schwarze 561: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 562: if (n->flags & MDOC_ENDED) {
563: if ( ! (n->flags & MDOC_VALID))
564: n->flags |= MDOC_BROKEN;
1.83 schwarze 565: continue;
1.183 schwarze 566: }
1.83 schwarze 567:
568: /* Remember the start of our own body. */
1.151 schwarze 569:
1.184 schwarze 570: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 571: if (n->end == ENDBODY_NOT)
1.83 schwarze 572: body = n;
573: continue;
574: }
575:
1.184 schwarze 576: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 577: continue;
1.160 schwarze 578:
579: if (n->tok == MDOC_It) {
1.171 schwarze 580: itblk = n;
1.160 schwarze 581: continue;
582: }
583:
1.83 schwarze 584: if (atok == n->tok) {
585: assert(body);
586:
587: /*
588: * Found the start of our own block.
589: * When there is no pending sub block,
590: * just proceed to closing out.
591: */
1.151 schwarze 592:
1.160 schwarze 593: if (later == NULL ||
1.171 schwarze 594: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 595: break;
596:
1.131 schwarze 597: /*
1.167 schwarze 598: * When there is a pending sub block, postpone
599: * closing out the current block until the
600: * rew_pending() closing out the sub-block.
1.83 schwarze 601: * Mark the place where the formatting - but not
602: * the scope - of the current block ends.
603: */
1.151 schwarze 604:
1.183 schwarze 605: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
606: line, ppos, "%s breaks %s",
607: mdoc_macronames[atok],
608: mdoc_macronames[later->tok]);
609:
1.166 schwarze 610: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 611: atok, body, ENDBODY_SPACE);
1.151 schwarze 612:
1.183 schwarze 613: if (tok == MDOC_El)
614: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
615:
1.151 schwarze 616: /*
617: * If a block closing macro taking arguments
618: * breaks another block, put the arguments
1.166 schwarze 619: * into the end marker.
1.151 schwarze 620: */
621:
1.166 schwarze 622: if (maxargs)
1.189 schwarze 623: mdoc->next = ROFF_NEXT_CHILD;
1.83 schwarze 624: break;
1.182 schwarze 625: }
626:
627: /* Explicit blocks close out description lines. */
628:
629: if (n->tok == MDOC_Nd) {
630: rew_last(mdoc, n);
631: continue;
1.83 schwarze 632: }
633:
1.183 schwarze 634: /* Breaking an open sub block. */
1.151 schwarze 635:
1.183 schwarze 636: n->flags |= MDOC_BROKEN;
637: if (later == NULL)
1.83 schwarze 638: later = n;
639: }
1.166 schwarze 640:
641: if (body == NULL) {
642: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
643: line, ppos, mdoc_macronames[tok]);
1.196 schwarze 644: if (later != NULL)
645: later->flags &= ~MDOC_BROKEN;
1.166 schwarze 646: if (maxargs && endbody == NULL) {
647: /*
648: * Stray .Ec without previous .Eo:
649: * Break the output line, keep the arguments.
650: */
1.193 schwarze 651: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166 schwarze 652: rew_elem(mdoc, MDOC_br);
653: }
654: } else if (endbody == NULL) {
655: rew_last(mdoc, body);
656: if (maxargs)
657: mdoc_tail_alloc(mdoc, line, ppos, atok);
658: }
1.83 schwarze 659:
1.150 schwarze 660: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
661: if (buf[*pos] != '\0')
1.136 schwarze 662: mandoc_vmsg(MANDOCERR_ARG_SKIP,
663: mdoc->parse, line, ppos,
664: "%s %s", mdoc_macronames[tok],
665: buf + *pos);
1.171 schwarze 666: if (endbody == NULL && n != NULL)
1.167 schwarze 667: rew_pending(mdoc, n);
1.151 schwarze 668: return;
1.1 kristaps 669: }
670:
1.166 schwarze 671: if (endbody != NULL)
672: n = endbody;
1.197 schwarze 673:
674: ntok = TOKEN_NONE;
1.148 schwarze 675: for (j = 0; ; j++) {
1.1 kristaps 676: lastarg = *pos;
677:
1.186 schwarze 678: if (j == maxargs && n != NULL)
679: rew_last(mdoc, n);
1.1 kristaps 680:
1.119 schwarze 681: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 682: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 683: break;
684:
1.191 schwarze 685: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155 schwarze 686: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 687:
1.191 schwarze 688: if (ntok == TOKEN_NONE) {
1.150 schwarze 689: dword(mdoc, line, lastarg, p, DELIM_MAX,
690: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 691: continue;
692: }
1.1 kristaps 693:
1.186 schwarze 694: if (n != NULL)
695: rew_last(mdoc, n);
1.122 schwarze 696: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 697: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 698: break;
1.1 kristaps 699: }
700:
1.188 schwarze 701: if (n != NULL) {
1.197 schwarze 702: if (ntok != TOKEN_NONE && n->flags & MDOC_BROKEN) {
1.188 schwarze 703: target = n;
704: do
705: target = target->parent;
706: while ( ! (target->flags & MDOC_ENDED));
707: pending = find_pending(mdoc, ntok, line, ppos,
708: target);
709: } else
710: pending = 0;
711: if ( ! pending)
712: rew_pending(mdoc, n);
713: }
1.150 schwarze 714: if (nl)
715: append_delims(mdoc, line, pos, buf);
1.1 kristaps 716: }
717:
1.151 schwarze 718: static void
1.1 kristaps 719: in_line(MACRO_PROT_ARGS)
720: {
1.144 schwarze 721: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 schwarze 722: int ntok;
1.55 kristaps 723: enum margserr ac;
1.67 schwarze 724: enum mdelim d;
1.53 kristaps 725: struct mdoc_arg *arg;
726: char *p;
1.1 kristaps 727:
1.119 schwarze 728: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 729:
1.4 kristaps 730: /*
731: * Whether we allow ignored elements (those without content,
732: * usually because of reserved words) to squeak by.
733: */
1.45 kristaps 734:
1.4 kristaps 735: switch (tok) {
1.131 schwarze 736: case MDOC_An:
1.26 kristaps 737: /* FALLTHROUGH */
1.131 schwarze 738: case MDOC_Ar:
1.4 kristaps 739: /* FALLTHROUGH */
1.131 schwarze 740: case MDOC_Fl:
1.4 kristaps 741: /* FALLTHROUGH */
1.131 schwarze 742: case MDOC_Mt:
1.12 kristaps 743: /* FALLTHROUGH */
1.131 schwarze 744: case MDOC_Nm:
1.26 kristaps 745: /* FALLTHROUGH */
1.131 schwarze 746: case MDOC_Pa:
1.4 kristaps 747: nc = 1;
748: break;
749: default:
750: nc = 0;
751: break;
752: }
753:
1.152 schwarze 754: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 755:
1.144 schwarze 756: d = DELIM_NONE;
757: firstarg = 1;
1.142 schwarze 758: mayopen = 1;
1.70 kristaps 759: for (cnt = scope = 0;; ) {
1.1 kristaps 760: la = *pos;
1.119 schwarze 761: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 762:
1.144 schwarze 763: /*
764: * At the end of a macro line,
765: * opening delimiters do not suppress spacing.
766: */
767:
768: if (ac == ARGS_EOLN) {
769: if (d == DELIM_OPEN)
770: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 771: break;
1.144 schwarze 772: }
773:
774: /*
775: * The rest of the macro line is only punctuation,
776: * to be handled by append_delims().
777: * If there were no other arguments,
778: * do not allow the first one to suppress spacing,
779: * even if it turns out to be a closing one.
780: */
781:
782: if (ac == ARGS_PUNCT) {
1.176 schwarze 783: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 784: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 785: break;
1.144 schwarze 786: }
1.1 kristaps 787:
1.145 schwarze 788: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191 schwarze 789: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 790:
1.131 schwarze 791: /*
1.4 kristaps 792: * In this case, we've located a submacro and must
793: * execute it. Close out scope, if open. If no
794: * elements have been generated, either create one (nc)
795: * or raise a warning.
796: */
1.1 kristaps 797:
1.191 schwarze 798: if (ntok != TOKEN_NONE) {
1.149 schwarze 799: if (scope)
800: rew_elem(mdoc, tok);
1.150 schwarze 801: if (nc && ! cnt) {
802: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 803: rew_last(mdoc, mdoc->last);
1.150 schwarze 804: } else if ( ! nc && ! cnt) {
1.7 kristaps 805: mdoc_argv_free(arg);
1.135 schwarze 806: mandoc_msg(MANDOCERR_MACRO_EMPTY,
807: mdoc->parse, line, ppos,
808: mdoc_macronames[tok]);
1.7 kristaps 809: }
1.151 schwarze 810: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 811: if (nl)
812: append_delims(mdoc, line, pos, buf);
1.151 schwarze 813: return;
1.131 schwarze 814: }
1.1 kristaps 815:
1.131 schwarze 816: /*
1.4 kristaps 817: * Non-quote-enclosed punctuation. Set up our scope, if
818: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 819: * the word.
1.4 kristaps 820: */
1.1 kristaps 821:
1.150 schwarze 822: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 823:
1.70 kristaps 824: if (DELIM_NONE != d) {
825: /*
826: * If we encounter closing punctuation, no word
1.144 schwarze 827: * has been emitted, no scope is open, and we're
1.70 kristaps 828: * allowed to have an empty element, then start
1.142 schwarze 829: * a new scope.
1.70 kristaps 830: */
1.142 schwarze 831: if ((d == DELIM_CLOSE ||
832: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 833: !cnt && !scope && nc && mayopen) {
1.150 schwarze 834: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 835: scope = 1;
1.142 schwarze 836: cnt++;
1.150 schwarze 837: if (tok == MDOC_Nm)
1.142 schwarze 838: mayopen = 0;
1.70 kristaps 839: }
840: /*
841: * Close out our scope, if one is open, before
842: * any punctuation.
843: */
1.149 schwarze 844: if (scope)
845: rew_elem(mdoc, tok);
1.70 kristaps 846: scope = 0;
1.145 schwarze 847: if (tok == MDOC_Fn)
848: mayopen = 0;
1.142 schwarze 849: } else if (mayopen && !scope) {
1.150 schwarze 850: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 851: scope = 1;
1.142 schwarze 852: cnt++;
1.1 kristaps 853: }
1.105 kristaps 854:
1.150 schwarze 855: dword(mdoc, line, la, p, d,
856: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 857:
858: /*
1.144 schwarze 859: * If the first argument is a closing delimiter,
860: * do not suppress spacing before it.
861: */
862:
863: if (firstarg && d == DELIM_CLOSE && !nc)
864: mdoc->last->flags &= ~MDOC_DELIMC;
865: firstarg = 0;
866:
867: /*
1.39 kristaps 868: * `Fl' macros have their scope re-opened with each new
869: * word so that the `-' can be added to each one without
870: * having to parse out spaces.
871: */
1.150 schwarze 872: if (scope && tok == MDOC_Fl) {
1.149 schwarze 873: rew_elem(mdoc, tok);
1.70 kristaps 874: scope = 0;
1.39 kristaps 875: }
1.1 kristaps 876: }
877:
1.149 schwarze 878: if (scope)
879: rew_elem(mdoc, tok);
1.4 kristaps 880:
881: /*
882: * If no elements have been collected and we're allowed to have
883: * empties (nc), open a scope and close it out. Otherwise,
884: * raise a warning.
885: */
1.45 kristaps 886:
1.150 schwarze 887: if ( ! cnt) {
888: if (nc) {
889: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
890: rew_last(mdoc, mdoc->last);
891: } else {
892: mdoc_argv_free(arg);
893: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
894: line, ppos, mdoc_macronames[tok]);
895: }
1.7 kristaps 896: }
1.150 schwarze 897: if (nl)
898: append_delims(mdoc, line, pos, buf);
1.1 kristaps 899: }
900:
1.151 schwarze 901: static void
1.1 kristaps 902: blk_full(MACRO_PROT_ARGS)
903: {
1.153 schwarze 904: int la, nl, parsed;
1.1 kristaps 905: struct mdoc_arg *arg;
1.185 schwarze 906: struct roff_node *blk; /* Our own or a broken block. */
907: struct roff_node *head; /* Our own head. */
908: struct roff_node *body; /* Our own body. */
909: struct roff_node *n;
1.59 kristaps 910: enum margserr ac, lac;
1.1 kristaps 911: char *p;
912:
1.119 schwarze 913: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 914:
1.177 schwarze 915: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
916: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
917: line, ppos, mdoc_macronames[tok]);
918: return;
919: }
920:
1.171 schwarze 921: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
922:
923: /* Here, tok is one of Sh Ss Nm Nd It. */
924:
925: blk = NULL;
926: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 927: if (n->flags & MDOC_ENDED) {
928: if ( ! (n->flags & MDOC_VALID))
929: n->flags |= MDOC_BROKEN;
930: continue;
931: }
1.184 schwarze 932: if (n->type != ROFFT_BLOCK)
1.171 schwarze 933: continue;
1.183 schwarze 934:
1.171 schwarze 935: if (tok == MDOC_It && n->tok == MDOC_Bl) {
936: if (blk != NULL) {
937: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
938: mdoc->parse, line, ppos,
939: "It breaks %s",
940: mdoc_macronames[blk->tok]);
941: rew_pending(mdoc, blk);
942: }
943: break;
944: }
945:
946: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
947: switch (tok) {
948: case MDOC_Sh:
949: /* FALLTHROUGH */
950: case MDOC_Ss:
951: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
952: mdoc->parse, line, ppos,
953: "%s breaks %s",
954: mdoc_macronames[tok],
955: mdoc_macronames[n->tok]);
956: rew_pending(mdoc, n);
1.180 schwarze 957: n = mdoc->last;
1.171 schwarze 958: continue;
959: case MDOC_It:
960: /* Delay in case it's astray. */
961: blk = n;
962: continue;
963: default:
964: break;
965: }
966: break;
967: }
968:
969: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 970:
1.171 schwarze 971: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
972: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
973: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 974: break;
1.171 schwarze 975:
976: /* Item breaking an explicit block. */
977:
978: if (blk != NULL) {
979: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
980: mdoc->parse, line, ppos,
981: "It breaks %s",
982: mdoc_macronames[blk->tok]);
983: rew_pending(mdoc, blk);
1.172 schwarze 984: blk = NULL;
1.171 schwarze 985: }
986:
987: /* Close out prior implicit scopes. */
988:
989: rew_last(mdoc, n);
990: }
991:
992: /* Skip items outside lists. */
993:
994: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 995: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
996: line, ppos, "It %s", buf + *pos);
1.193 schwarze 997: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149 schwarze 998: rew_elem(mdoc, MDOC_br);
1.151 schwarze 999: return;
1.138 schwarze 1000: }
1.1 kristaps 1001: }
1002:
1.45 kristaps 1003: /*
1.109 kristaps 1004: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1005: * macro openings. Implicit ones first close out prior scope
1006: * (seen above). Delay opening the head until necessary to
1007: * allow leading punctuation to print. Special consideration
1008: * for `It -column', which has phrase-part syntax instead of
1009: * regular child nodes.
1010: */
1011:
1.152 schwarze 1012: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1013: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1014: head = body = NULL;
1.115 schwarze 1015:
1016: /*
1017: * Exception: Heads of `It' macros in `-diag' lists are not
1018: * parsed, even though `It' macros in general are parsed.
1019: */
1.151 schwarze 1020:
1.153 schwarze 1021: parsed = tok != MDOC_It ||
1022: mdoc->last->parent->tok != MDOC_Bl ||
1023: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1024:
1.45 kristaps 1025: /*
1026: * The `Nd' macro has all arguments in its body: it's a hybrid
1027: * of block partial-explicit and full-implicit. Stupid.
1028: */
1.19 kristaps 1029:
1.150 schwarze 1030: if (tok == MDOC_Nd) {
1.190 schwarze 1031: head = roff_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1032: rew_last(mdoc, head);
1.190 schwarze 1033: body = roff_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1034: }
1035:
1.150 schwarze 1036: if (tok == MDOC_Bk)
1.123 schwarze 1037: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1038:
1.150 schwarze 1039: ac = ARGS_PEND;
1040: for (;;) {
1.45 kristaps 1041: la = *pos;
1.150 schwarze 1042: lac = ac;
1.119 schwarze 1043: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1044: if (ac == ARGS_EOLN) {
1045: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1046: break;
1047: /*
1048: * This is necessary: if the last token on a
1049: * line is a `Ta' or tab, then we'll get
1050: * ARGS_EOLN, so we must be smart enough to
1051: * reopen our scope if the last parse was a
1052: * phrase or partial phrase.
1053: */
1.167 schwarze 1054: if (body != NULL)
1055: rew_last(mdoc, body);
1.190 schwarze 1056: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1057: break;
1.75 kristaps 1058: }
1.174 schwarze 1059: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1060: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1061: mdoc->parse, line, la, "%s ... %s",
1062: mdoc_macronames[tok], buf + la);
1063: break;
1064: }
1.173 schwarze 1065: if (tok == MDOC_Rs) {
1066: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1067: line, la, "Rs %s", buf + la);
1068: break;
1069: }
1070: if (ac == ARGS_PUNCT)
1071: break;
1.45 kristaps 1072:
1.131 schwarze 1073: /*
1.73 kristaps 1074: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1075: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1076: */
1.45 kristaps 1077:
1.150 schwarze 1078: if (head == NULL &&
1079: ac != ARGS_PEND &&
1080: ac != ARGS_PHRASE &&
1081: ac != ARGS_PPHRASE &&
1082: ac != ARGS_QWORD &&
1083: mdoc_isdelim(p) == DELIM_OPEN) {
1084: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1085: continue;
1086: }
1087:
1.74 kristaps 1088: /* Open a head if one hasn't been opened. */
1.45 kristaps 1089:
1.150 schwarze 1090: if (head == NULL)
1.190 schwarze 1091: head = roff_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1092:
1.150 schwarze 1093: if (ac == ARGS_PHRASE ||
1094: ac == ARGS_PEND ||
1095: ac == ARGS_PPHRASE) {
1.151 schwarze 1096:
1.73 kristaps 1097: /*
1.74 kristaps 1098: * If we haven't opened a body yet, rewind the
1099: * head; if we have, rewind that instead.
1100: */
1101:
1.167 schwarze 1102: rew_last(mdoc, body == NULL ? head : body);
1.190 schwarze 1103: body = roff_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1104:
1105: /*
1.73 kristaps 1106: * Process phrases: set whether we're in a
1107: * partial-phrase (this effects line handling)
1108: * then call down into the phrase parser.
1109: */
1.74 kristaps 1110:
1.150 schwarze 1111: if (ac == ARGS_PPHRASE)
1.119 schwarze 1112: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1113: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1114: mdoc->flags |= MDOC_PPHRASE;
1.191 schwarze 1115: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.119 schwarze 1116: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1117: continue;
1118: }
1119:
1.153 schwarze 1120: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1121: break;
1.45 kristaps 1122: }
1.1 kristaps 1123:
1.165 schwarze 1124: if (blk->flags & MDOC_VALID)
1125: return;
1.150 schwarze 1126: if (head == NULL)
1.190 schwarze 1127: head = roff_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1128: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1129: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1130: if (body != NULL)
1.77 kristaps 1131: goto out;
1.187 schwarze 1132: if (find_pending(mdoc, tok, line, ppos, head))
1.183 schwarze 1133: return;
1.47 kristaps 1134:
1.45 kristaps 1135: /* Close out scopes to remain in a consistent state. */
1136:
1.167 schwarze 1137: rew_last(mdoc, head);
1.190 schwarze 1138: body = roff_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1139: out:
1.150 schwarze 1140: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1141: rew_last(mdoc, body);
1142: rew_last(mdoc, blk);
1.150 schwarze 1143: mdoc->flags &= ~MDOC_FREECOL;
1144: }
1.1 kristaps 1145: }
1146:
1.151 schwarze 1147: static void
1.1 kristaps 1148: blk_part_imp(MACRO_PROT_ARGS)
1149: {
1.63 kristaps 1150: int la, nl;
1.55 kristaps 1151: enum margserr ac;
1.1 kristaps 1152: char *p;
1.185 schwarze 1153: struct roff_node *blk; /* saved block context */
1154: struct roff_node *body; /* saved body context */
1155: struct roff_node *n;
1.1 kristaps 1156:
1.119 schwarze 1157: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1158:
1.43 kristaps 1159: /*
1160: * A macro that spans to the end of the line. This is generally
1161: * (but not necessarily) called as the first macro. The block
1162: * has a head as the immediate child, which is always empty,
1163: * followed by zero or more opening punctuation nodes, then the
1164: * body (which may be empty, depending on the macro), then zero
1165: * or more closing punctuation nodes.
1166: */
1.32 kristaps 1167:
1.150 schwarze 1168: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190 schwarze 1169: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1170:
1.43 kristaps 1171: /*
1172: * Open the body scope "on-demand", that is, after we've
1173: * processed all our the leading delimiters (open parenthesis,
1174: * etc.).
1175: */
1.1 kristaps 1176:
1.43 kristaps 1177: for (body = NULL; ; ) {
1.32 kristaps 1178: la = *pos;
1.119 schwarze 1179: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1180: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1181: break;
1182:
1.150 schwarze 1183: if (body == NULL && ac != ARGS_QWORD &&
1184: mdoc_isdelim(p) == DELIM_OPEN) {
1185: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1186: continue;
1.123 schwarze 1187: }
1.1 kristaps 1188:
1.150 schwarze 1189: if (body == NULL)
1.190 schwarze 1190: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1191:
1.153 schwarze 1192: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1193: break;
1.1 kristaps 1194: }
1.150 schwarze 1195: if (body == NULL)
1.190 schwarze 1196: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1197:
1.187 schwarze 1198: if (find_pending(mdoc, tok, line, ppos, body))
1.183 schwarze 1199: return;
1200:
1.164 schwarze 1201: rew_last(mdoc, body);
1.150 schwarze 1202: if (nl)
1203: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1204: rew_pending(mdoc, blk);
1.117 schwarze 1205:
1206: /* Move trailing .Ns out of scope. */
1207:
1208: for (n = body->child; n && n->next; n = n->next)
1209: /* Do nothing. */ ;
1.150 schwarze 1210: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1211: mdoc_node_relink(mdoc, n);
1.1 kristaps 1212: }
1213:
1.151 schwarze 1214: static void
1.1 kristaps 1215: blk_part_exp(MACRO_PROT_ARGS)
1216: {
1.60 kristaps 1217: int la, nl;
1.55 kristaps 1218: enum margserr ac;
1.185 schwarze 1219: struct roff_node *head; /* keep track of head */
1.1 kristaps 1220: char *p;
1221:
1.119 schwarze 1222: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1223:
1.43 kristaps 1224: /*
1225: * The opening of an explicit macro having zero or more leading
1226: * punctuation nodes; a head with optional single element (the
1227: * case of `Eo'); and a body that may be empty.
1228: */
1.32 kristaps 1229:
1.193 schwarze 1230: roff_block_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1231: head = NULL;
1232: for (;;) {
1.32 kristaps 1233: la = *pos;
1.119 schwarze 1234: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1235: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1236: break;
1.43 kristaps 1237:
1238: /* Flush out leading punctuation. */
1239:
1.150 schwarze 1240: if (head == NULL && ac != ARGS_QWORD &&
1241: mdoc_isdelim(p) == DELIM_OPEN) {
1242: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1243: continue;
1.123 schwarze 1244: }
1.43 kristaps 1245:
1.150 schwarze 1246: if (head == NULL) {
1.190 schwarze 1247: head = roff_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1248: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1249: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1250: rew_last(mdoc, head);
1.190 schwarze 1251: roff_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1252: if (tok == MDOC_Eo)
1.43 kristaps 1253: continue;
1.1 kristaps 1254: }
1.43 kristaps 1255:
1.153 schwarze 1256: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1257: break;
1.1 kristaps 1258: }
1259:
1.43 kristaps 1260: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1261:
1.163 schwarze 1262: if (head == NULL) {
1.190 schwarze 1263: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1264: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1265: }
1.150 schwarze 1266: if (nl)
1267: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1268: }
1269:
1.151 schwarze 1270: static void
1.1 kristaps 1271: in_line_argn(MACRO_PROT_ARGS)
1272: {
1.53 kristaps 1273: struct mdoc_arg *arg;
1274: char *p;
1.181 schwarze 1275: enum margserr ac;
1.185 schwarze 1276: int ntok;
1.181 schwarze 1277: int state; /* arg#; -1: not yet open; -2: closed */
1278: int la, maxargs, nl;
1.1 kristaps 1279:
1.156 schwarze 1280: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1281:
1.46 kristaps 1282: /*
1283: * A line macro that has a fixed number of arguments (maxargs).
1284: * Only open the scope once the first non-leading-punctuation is
1285: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1286: * keep it open until the maximum number of arguments are
1287: * exhausted.
1288: */
1.1 kristaps 1289:
1290: switch (tok) {
1.131 schwarze 1291: case MDOC_Ap:
1.1 kristaps 1292: /* FALLTHROUGH */
1.131 schwarze 1293: case MDOC_Ns:
1.1 kristaps 1294: /* FALLTHROUGH */
1.131 schwarze 1295: case MDOC_Ux:
1.1 kristaps 1296: maxargs = 0;
1297: break;
1.131 schwarze 1298: case MDOC_Bx:
1.101 kristaps 1299: /* FALLTHROUGH */
1.132 schwarze 1300: case MDOC_Es:
1301: /* FALLTHROUGH */
1.131 schwarze 1302: case MDOC_Xr:
1.42 kristaps 1303: maxargs = 2;
1304: break;
1.1 kristaps 1305: default:
1306: maxargs = 1;
1307: break;
1308: }
1309:
1.152 schwarze 1310: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1311:
1.181 schwarze 1312: state = -1;
1.156 schwarze 1313: p = NULL;
1314: for (;;) {
1.32 kristaps 1315: la = *pos;
1.119 schwarze 1316: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1317:
1318: if (ac == ARGS_WORD && state == -1 &&
1319: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1320: mdoc_isdelim(p) == DELIM_OPEN) {
1321: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1322: continue;
1323: }
1324:
1325: if (state == -1 && tok != MDOC_In &&
1326: tok != MDOC_St && tok != MDOC_Xr) {
1327: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1328: state = 0;
1329: }
1330:
1.156 schwarze 1331: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1332: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1333: mandoc_vmsg(MANDOCERR_PF_SKIP,
1334: mdoc->parse, line, ppos, "Pf %s",
1335: p == NULL ? "at eol" : p);
1.1 kristaps 1336: break;
1.156 schwarze 1337: }
1.1 kristaps 1338:
1.181 schwarze 1339: if (state == maxargs) {
1.149 schwarze 1340: rew_elem(mdoc, tok);
1.181 schwarze 1341: state = -2;
1.46 kristaps 1342: }
1343:
1.181 schwarze 1344: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191 schwarze 1345: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1346:
1.191 schwarze 1347: if (ntok != TOKEN_NONE) {
1.181 schwarze 1348: if (state >= 0) {
1.149 schwarze 1349: rew_elem(mdoc, tok);
1.181 schwarze 1350: state = -2;
1351: }
1.151 schwarze 1352: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1353: break;
1354: }
1355:
1.181 schwarze 1356: if (ac == ARGS_QWORD ||
1357: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1358: mdoc_isdelim(p) == DELIM_NONE) {
1359: if (state == -1) {
1360: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1361: state = 1;
1362: } else if (state >= 0)
1363: state++;
1364: } else if (state >= 0) {
1.149 schwarze 1365: rew_elem(mdoc, tok);
1.181 schwarze 1366: state = -2;
1.1 kristaps 1367: }
1.42 kristaps 1368:
1.150 schwarze 1369: dword(mdoc, line, la, p, DELIM_MAX,
1370: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1371: }
1372:
1.181 schwarze 1373: if (state == -1) {
1374: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1375: line, ppos, mdoc_macronames[tok]);
1376: return;
1.156 schwarze 1377: }
1.181 schwarze 1378:
1379: if (state == 0 && tok == MDOC_Pf)
1380: append_delims(mdoc, line, pos, buf);
1381: if (state >= 0)
1.149 schwarze 1382: rew_elem(mdoc, tok);
1.150 schwarze 1383: if (nl)
1384: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1385: }
1386:
1.151 schwarze 1387: static void
1.1 kristaps 1388: in_line_eoln(MACRO_PROT_ARGS)
1389: {
1.185 schwarze 1390: struct roff_node *n;
1.170 schwarze 1391: struct mdoc_arg *arg;
1.1 kristaps 1392:
1.170 schwarze 1393: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1394: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1395: n = mdoc->last;
1.189 schwarze 1396: if (mdoc->next == ROFF_NEXT_SIBLING)
1.170 schwarze 1397: n = n->parent;
1398: if (n->tok == MDOC_Nm)
1.198 schwarze 1399: rew_last(mdoc, n->parent);
1.178 schwarze 1400: }
1401:
1.179 schwarze 1402: if (buf[*pos] == '\0' &&
1403: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1404: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1405: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1406: return;
1.170 schwarze 1407: }
1.90 schwarze 1408:
1.152 schwarze 1409: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1410: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1411: if (parse_rest(mdoc, tok, line, pos, buf))
1412: return;
1413: rew_elem(mdoc, tok);
1414: }
1415:
1416: /*
1417: * The simplest argument parser available: Parse the remaining
1418: * words until the end of the phrase or line and return 0
1419: * or until the next macro, call that macro, and return 1.
1420: */
1421: static int
1.189 schwarze 1422: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1423: {
1424: int la;
1.1 kristaps 1425:
1426: for (;;) {
1427: la = *pos;
1.153 schwarze 1428: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202 ! schwarze 1429: return 0;
1.153 schwarze 1430: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202 ! schwarze 1431: return 1;
1.1 kristaps 1432: }
1433: }
1434:
1.151 schwarze 1435: static void
1.41 kristaps 1436: ctx_synopsis(MACRO_PROT_ARGS)
1437: {
1.60 kristaps 1438:
1.151 schwarze 1439: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1440: in_line(mdoc, tok, line, ppos, pos, buf);
1441: else if (tok == MDOC_Nm)
1442: blk_full(mdoc, tok, line, ppos, pos, buf);
1443: else {
1444: assert(tok == MDOC_Vt);
1445: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1446: }
1.1 kristaps 1447: }
1448:
1.24 kristaps 1449: /*
1450: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1451: * They're unusual because they're basically free-form text until a
1452: * macro is encountered.
1453: */
1.151 schwarze 1454: static void
1.75 kristaps 1455: phrase_ta(MACRO_PROT_ARGS)
1456: {
1.185 schwarze 1457: struct roff_node *body, *n;
1.75 kristaps 1458:
1.121 schwarze 1459: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1460:
1.167 schwarze 1461: body = NULL;
1462: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1463: if (n->flags & MDOC_ENDED)
1.167 schwarze 1464: continue;
1.184 schwarze 1465: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1466: body = n;
1467: if (n->tok == MDOC_Bl)
1468: break;
1469: }
1470:
1.151 schwarze 1471: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1472: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1473: line, ppos, "Ta");
1.151 schwarze 1474: return;
1.121 schwarze 1475: }
1.75 kristaps 1476:
1.121 schwarze 1477: /* Advance to the next column. */
1.150 schwarze 1478:
1.167 schwarze 1479: rew_last(mdoc, body);
1.190 schwarze 1480: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191 schwarze 1481: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75 kristaps 1482: }
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