Annotation of mandoc/mdoc_macro.c, Revision 1.205
1.205 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.204 2015/10/15 22:27:24 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:
1.205 ! schwarze 242: if (mdoc->flags & MDOC_PHRASEQF) {
! 243: mdoc->flags &= ~MDOC_PHRASEQF;
! 244: return TOKEN_NONE;
! 245: }
1.191 schwarze 246: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.153 schwarze 247: res = mdoc_hash_find(p);
1.191 schwarze 248: if (res != TOKEN_NONE) {
1.155 schwarze 249: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.202 schwarze 250: return res;
1.155 schwarze 251: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
252: mandoc_msg(MANDOCERR_MACRO_CALL,
253: mdoc->parse, line, ppos, p);
254: }
1.153 schwarze 255: }
1.202 schwarze 256: return TOKEN_NONE;
1.1 kristaps 257: }
258:
1.166 schwarze 259: /*
260: * Rewind up to and including a specific node.
261: */
1.149 schwarze 262: static void
1.189 schwarze 263: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 264: {
1.199 schwarze 265: struct roff_node *np;
1.1 kristaps 266:
1.186 schwarze 267: if (to->flags & MDOC_VALID)
268: return;
269:
1.1 kristaps 270: while (mdoc->last != to) {
1.100 kristaps 271: /*
272: * Save the parent here, because we may delete the
1.119 schwarze 273: * mdoc->last node in the post-validation phase and reset
274: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 275: * out to be lost.
276: */
277: np = mdoc->last->parent;
1.149 schwarze 278: mdoc_valid_post(mdoc);
1.100 kristaps 279: mdoc->last = np;
1.1 kristaps 280: assert(mdoc->last);
281: }
1.200 schwarze 282: mdoc->next = ROFF_NEXT_SIBLING;
1.149 schwarze 283: mdoc_valid_post(mdoc);
1.1 kristaps 284: }
285:
1.32 kristaps 286: /*
1.166 schwarze 287: * Rewind up to a specific block, including all blocks that broke it.
288: */
289: static void
1.189 schwarze 290: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166 schwarze 291: {
292:
1.183 schwarze 293: for (;;) {
294: rew_last(mdoc, n);
295:
1.194 schwarze 296: if (mdoc->last == n) {
297: switch (n->type) {
298: case ROFFT_HEAD:
299: roff_body_alloc(mdoc, n->line, n->pos,
300: n->tok);
301: return;
302: case ROFFT_BLOCK:
303: break;
304: default:
305: return;
306: }
307: if ( ! (n->flags & MDOC_BROKEN))
308: return;
309: } else
310: n = mdoc->last;
1.166 schwarze 311:
1.183 schwarze 312: for (;;) {
313: if ((n = n->parent) == NULL)
314: return;
315:
1.184 schwarze 316: if (n->type == ROFFT_BLOCK ||
317: n->type == ROFFT_HEAD) {
1.183 schwarze 318: if (n->flags & MDOC_ENDED)
319: break;
320: else
321: return;
322: }
323: }
1.166 schwarze 324: }
325: }
326:
327: /*
1.84 schwarze 328: * For a block closing macro, return the corresponding opening one.
329: * Otherwise, return the macro itself.
1.32 kristaps 330: */
1.185 schwarze 331: static int
332: rew_alt(int tok)
1.1 kristaps 333: {
334: switch (tok) {
1.131 schwarze 335: case MDOC_Ac:
1.202 schwarze 336: return MDOC_Ao;
1.131 schwarze 337: case MDOC_Bc:
1.202 schwarze 338: return MDOC_Bo;
1.131 schwarze 339: case MDOC_Brc:
1.202 schwarze 340: return MDOC_Bro;
1.131 schwarze 341: case MDOC_Dc:
1.202 schwarze 342: return MDOC_Do;
1.131 schwarze 343: case MDOC_Ec:
1.202 schwarze 344: return MDOC_Eo;
1.131 schwarze 345: case MDOC_Ed:
1.202 schwarze 346: return MDOC_Bd;
1.131 schwarze 347: case MDOC_Ef:
1.202 schwarze 348: return MDOC_Bf;
1.131 schwarze 349: case MDOC_Ek:
1.202 schwarze 350: return MDOC_Bk;
1.131 schwarze 351: case MDOC_El:
1.202 schwarze 352: return MDOC_Bl;
1.131 schwarze 353: case MDOC_Fc:
1.202 schwarze 354: return MDOC_Fo;
1.131 schwarze 355: case MDOC_Oc:
1.202 schwarze 356: return MDOC_Oo;
1.131 schwarze 357: case MDOC_Pc:
1.202 schwarze 358: return MDOC_Po;
1.131 schwarze 359: case MDOC_Qc:
1.202 schwarze 360: return MDOC_Qo;
1.131 schwarze 361: case MDOC_Re:
1.202 schwarze 362: return MDOC_Rs;
1.131 schwarze 363: case MDOC_Sc:
1.202 schwarze 364: return MDOC_So;
1.131 schwarze 365: case MDOC_Xc:
1.202 schwarze 366: return MDOC_Xo;
1.1 kristaps 367: default:
1.202 schwarze 368: return tok;
1.1 kristaps 369: }
370: }
371:
1.149 schwarze 372: static void
1.189 schwarze 373: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 374: {
1.185 schwarze 375: struct roff_node *n;
1.1 kristaps 376:
377: n = mdoc->last;
1.184 schwarze 378: if (n->type != ROFFT_ELEM)
1.1 kristaps 379: n = n->parent;
1.184 schwarze 380: assert(n->type == ROFFT_ELEM);
1.1 kristaps 381: assert(tok == n->tok);
1.149 schwarze 382: rew_last(mdoc, n);
1.1 kristaps 383: }
384:
1.83 schwarze 385: /*
1.187 schwarze 386: * If there is an open sub-block of the target requiring
387: * explicit close-out, postpone closing out the target until
388: * the rew_pending() call closing out the sub-block.
389: */
390: static int
1.189 schwarze 391: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187 schwarze 392: struct roff_node *target)
393: {
394: struct roff_node *n;
395: int irc;
396:
397: irc = 0;
398: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
399: if (n->flags & MDOC_ENDED) {
400: if ( ! (n->flags & MDOC_VALID))
401: n->flags |= MDOC_BROKEN;
402: continue;
403: }
404: if (n->type == ROFFT_BLOCK &&
405: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
406: irc = 1;
407: n->flags = MDOC_BROKEN;
408: if (target->type == ROFFT_HEAD)
409: target->flags = MDOC_ENDED;
410: else if ( ! (target->flags & MDOC_ENDED)) {
411: mandoc_vmsg(MANDOCERR_BLK_NEST,
412: mdoc->parse, line, ppos,
413: "%s breaks %s", mdoc_macronames[tok],
414: mdoc_macronames[n->tok]);
415: mdoc_endbody_alloc(mdoc, line, ppos,
416: tok, target, ENDBODY_NOSPACE);
417: }
418: }
419: }
1.202 schwarze 420: return irc;
1.187 schwarze 421: }
422:
423: /*
1.105 kristaps 424: * Allocate a word and check whether it's punctuation or not.
425: * Punctuation consists of those tokens found in mdoc_isdelim().
426: */
1.150 schwarze 427: static void
1.189 schwarze 428: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123 schwarze 429: enum mdelim d, int may_append)
1.105 kristaps 430: {
1.131 schwarze 431:
1.150 schwarze 432: if (d == DELIM_MAX)
1.105 kristaps 433: d = mdoc_isdelim(p);
434:
1.123 schwarze 435: if (may_append &&
1.150 schwarze 436: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 schwarze 437: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 438: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192 schwarze 439: roff_word_append(mdoc, p);
1.150 schwarze 440: return;
1.123 schwarze 441: }
442:
1.192 schwarze 443: roff_word_alloc(mdoc, line, col, p);
1.105 kristaps 444:
1.108 schwarze 445: /*
1.144 schwarze 446: * If the word consists of a bare delimiter,
447: * flag the new node accordingly,
448: * unless doing so was vetoed by the invoking macro.
449: * Always clear the veto, it is only valid for one word.
1.108 schwarze 450: */
451:
1.144 schwarze 452: if (d == DELIM_OPEN)
453: mdoc->last->flags |= MDOC_DELIMO;
454: else if (d == DELIM_CLOSE &&
455: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 456: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 457: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 458: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 459: }
1.1 kristaps 460:
1.150 schwarze 461: static void
1.189 schwarze 462: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 463: {
1.153 schwarze 464: char *p;
1.66 kristaps 465: int la;
1.1 kristaps 466:
1.150 schwarze 467: if (buf[*pos] == '\0')
468: return;
1.1 kristaps 469:
470: for (;;) {
1.66 kristaps 471: la = *pos;
1.191 schwarze 472: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
473: ARGS_EOLN)
1.1 kristaps 474: break;
1.123 schwarze 475: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 476:
477: /*
478: * If we encounter end-of-sentence symbols, then trigger
479: * the double-space.
480: *
1.109 kristaps 481: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 482: * the last symbol, such that `. )' will cause the
483: * correct double-spacing. However, (1) groff isn't
484: * smart enough to do this and (2) it would require
485: * knowing which symbols break this behaviour, for
1.109 kristaps 486: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 487: */
1.150 schwarze 488:
1.127 schwarze 489: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 490: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 491: }
492: }
493:
494: /*
1.153 schwarze 495: * Parse one word.
496: * If it is a macro, call it and return 1.
497: * Otherwise, allocate it and return 0.
498: */
499: static int
500: macro_or_word(MACRO_PROT_ARGS, int parsed)
501: {
502: char *p;
1.185 schwarze 503: int ntok;
1.153 schwarze 504:
505: p = buf + ppos;
1.191 schwarze 506: ntok = TOKEN_NONE;
1.157 schwarze 507: if (*p == '"')
1.153 schwarze 508: p++;
1.157 schwarze 509: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 510: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 511:
1.191 schwarze 512: if (ntok == TOKEN_NONE) {
513: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153 schwarze 514: mdoc_macros[tok].flags & MDOC_JOIN);
1.202 schwarze 515: return 0;
1.153 schwarze 516: } else {
517: if (mdoc_macros[tok].fp == in_line_eoln)
518: rew_elem(mdoc, tok);
519: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191 schwarze 520: if (tok == TOKEN_NONE)
1.153 schwarze 521: append_delims(mdoc, line, pos, buf);
1.202 schwarze 522: return 1;
1.153 schwarze 523: }
524: }
525:
526: /*
1.131 schwarze 527: * Close out block partial/full explicit.
1.1 kristaps 528: */
1.151 schwarze 529: static void
1.1 kristaps 530: blk_exp_close(MACRO_PROT_ARGS)
531: {
1.185 schwarze 532: struct roff_node *body; /* Our own body. */
533: struct roff_node *endbody; /* Our own end marker. */
534: struct roff_node *itblk; /* An It block starting later. */
535: struct roff_node *later; /* A sub-block starting later. */
536: struct roff_node *n; /* Search back to our block. */
1.188 schwarze 537: struct roff_node *target; /* For find_pending(). */
1.83 schwarze 538:
1.188 schwarze 539: int j, lastarg, maxargs, nl, pending;
1.55 kristaps 540: enum margserr ac;
1.185 schwarze 541: int atok, ntok;
1.1 kristaps 542: char *p;
543:
1.119 schwarze 544: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 545:
1.1 kristaps 546: switch (tok) {
1.131 schwarze 547: case MDOC_Ec:
1.1 kristaps 548: maxargs = 1;
549: break;
1.131 schwarze 550: case MDOC_Ek:
1.125 schwarze 551: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 552: /* FALLTHROUGH */
1.1 kristaps 553: default:
554: maxargs = 0;
555: break;
556: }
557:
1.83 schwarze 558: /*
559: * Search backwards for beginnings of blocks,
560: * both of our own and of pending sub-blocks.
561: */
1.151 schwarze 562:
1.83 schwarze 563: atok = rew_alt(tok);
1.171 schwarze 564: body = endbody = itblk = later = NULL;
1.119 schwarze 565: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 566: if (n->flags & MDOC_ENDED) {
567: if ( ! (n->flags & MDOC_VALID))
568: n->flags |= MDOC_BROKEN;
1.83 schwarze 569: continue;
1.183 schwarze 570: }
1.83 schwarze 571:
572: /* Remember the start of our own body. */
1.151 schwarze 573:
1.184 schwarze 574: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 575: if (n->end == ENDBODY_NOT)
1.83 schwarze 576: body = n;
577: continue;
578: }
579:
1.184 schwarze 580: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 581: continue;
1.160 schwarze 582:
583: if (n->tok == MDOC_It) {
1.171 schwarze 584: itblk = n;
1.160 schwarze 585: continue;
586: }
587:
1.83 schwarze 588: if (atok == n->tok) {
589: assert(body);
590:
591: /*
592: * Found the start of our own block.
593: * When there is no pending sub block,
594: * just proceed to closing out.
595: */
1.151 schwarze 596:
1.160 schwarze 597: if (later == NULL ||
1.171 schwarze 598: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 599: break;
600:
1.131 schwarze 601: /*
1.167 schwarze 602: * When there is a pending sub block, postpone
603: * closing out the current block until the
604: * rew_pending() closing out the sub-block.
1.83 schwarze 605: * Mark the place where the formatting - but not
606: * the scope - of the current block ends.
607: */
1.151 schwarze 608:
1.183 schwarze 609: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
610: line, ppos, "%s breaks %s",
611: mdoc_macronames[atok],
612: mdoc_macronames[later->tok]);
613:
1.166 schwarze 614: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 615: atok, body, ENDBODY_SPACE);
1.151 schwarze 616:
1.183 schwarze 617: if (tok == MDOC_El)
618: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
619:
1.151 schwarze 620: /*
621: * If a block closing macro taking arguments
622: * breaks another block, put the arguments
1.166 schwarze 623: * into the end marker.
1.151 schwarze 624: */
625:
1.166 schwarze 626: if (maxargs)
1.189 schwarze 627: mdoc->next = ROFF_NEXT_CHILD;
1.83 schwarze 628: break;
1.182 schwarze 629: }
630:
631: /* Explicit blocks close out description lines. */
632:
633: if (n->tok == MDOC_Nd) {
634: rew_last(mdoc, n);
635: continue;
1.83 schwarze 636: }
637:
1.183 schwarze 638: /* Breaking an open sub block. */
1.151 schwarze 639:
1.183 schwarze 640: n->flags |= MDOC_BROKEN;
641: if (later == NULL)
1.83 schwarze 642: later = n;
643: }
1.166 schwarze 644:
645: if (body == NULL) {
646: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
647: line, ppos, mdoc_macronames[tok]);
1.196 schwarze 648: if (later != NULL)
649: later->flags &= ~MDOC_BROKEN;
1.166 schwarze 650: if (maxargs && endbody == NULL) {
651: /*
652: * Stray .Ec without previous .Eo:
653: * Break the output line, keep the arguments.
654: */
1.193 schwarze 655: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166 schwarze 656: rew_elem(mdoc, MDOC_br);
657: }
658: } else if (endbody == NULL) {
659: rew_last(mdoc, body);
660: if (maxargs)
661: mdoc_tail_alloc(mdoc, line, ppos, atok);
662: }
1.83 schwarze 663:
1.150 schwarze 664: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
665: if (buf[*pos] != '\0')
1.136 schwarze 666: mandoc_vmsg(MANDOCERR_ARG_SKIP,
667: mdoc->parse, line, ppos,
668: "%s %s", mdoc_macronames[tok],
669: buf + *pos);
1.171 schwarze 670: if (endbody == NULL && n != NULL)
1.167 schwarze 671: rew_pending(mdoc, n);
1.151 schwarze 672: return;
1.1 kristaps 673: }
674:
1.166 schwarze 675: if (endbody != NULL)
676: n = endbody;
1.197 schwarze 677:
678: ntok = TOKEN_NONE;
1.148 schwarze 679: for (j = 0; ; j++) {
1.1 kristaps 680: lastarg = *pos;
681:
1.186 schwarze 682: if (j == maxargs && n != NULL)
683: rew_last(mdoc, n);
1.1 kristaps 684:
1.119 schwarze 685: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 686: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 687: break;
688:
1.191 schwarze 689: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155 schwarze 690: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 691:
1.191 schwarze 692: if (ntok == TOKEN_NONE) {
1.150 schwarze 693: dword(mdoc, line, lastarg, p, DELIM_MAX,
694: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 695: continue;
696: }
1.1 kristaps 697:
1.186 schwarze 698: if (n != NULL)
699: rew_last(mdoc, n);
1.122 schwarze 700: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 701: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 702: break;
1.1 kristaps 703: }
704:
1.188 schwarze 705: if (n != NULL) {
1.197 schwarze 706: if (ntok != TOKEN_NONE && n->flags & MDOC_BROKEN) {
1.188 schwarze 707: target = n;
708: do
709: target = target->parent;
710: while ( ! (target->flags & MDOC_ENDED));
711: pending = find_pending(mdoc, ntok, line, ppos,
712: target);
713: } else
714: pending = 0;
715: if ( ! pending)
716: rew_pending(mdoc, n);
717: }
1.150 schwarze 718: if (nl)
719: append_delims(mdoc, line, pos, buf);
1.1 kristaps 720: }
721:
1.151 schwarze 722: static void
1.1 kristaps 723: in_line(MACRO_PROT_ARGS)
724: {
1.144 schwarze 725: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 schwarze 726: int ntok;
1.55 kristaps 727: enum margserr ac;
1.67 schwarze 728: enum mdelim d;
1.53 kristaps 729: struct mdoc_arg *arg;
730: char *p;
1.1 kristaps 731:
1.119 schwarze 732: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 733:
1.4 kristaps 734: /*
735: * Whether we allow ignored elements (those without content,
736: * usually because of reserved words) to squeak by.
737: */
1.45 kristaps 738:
1.4 kristaps 739: switch (tok) {
1.131 schwarze 740: case MDOC_An:
741: case MDOC_Ar:
742: case MDOC_Fl:
743: case MDOC_Mt:
744: case MDOC_Nm:
745: case MDOC_Pa:
1.4 kristaps 746: nc = 1;
747: break;
748: default:
749: nc = 0;
750: break;
751: }
752:
1.152 schwarze 753: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 754:
1.144 schwarze 755: d = DELIM_NONE;
756: firstarg = 1;
1.142 schwarze 757: mayopen = 1;
1.70 kristaps 758: for (cnt = scope = 0;; ) {
1.1 kristaps 759: la = *pos;
1.119 schwarze 760: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 761:
1.144 schwarze 762: /*
763: * At the end of a macro line,
764: * opening delimiters do not suppress spacing.
765: */
766:
767: if (ac == ARGS_EOLN) {
768: if (d == DELIM_OPEN)
769: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 770: break;
1.144 schwarze 771: }
772:
773: /*
774: * The rest of the macro line is only punctuation,
775: * to be handled by append_delims().
776: * If there were no other arguments,
777: * do not allow the first one to suppress spacing,
778: * even if it turns out to be a closing one.
779: */
780:
781: if (ac == ARGS_PUNCT) {
1.176 schwarze 782: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 783: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 784: break;
1.144 schwarze 785: }
1.1 kristaps 786:
1.145 schwarze 787: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191 schwarze 788: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 789:
1.131 schwarze 790: /*
1.4 kristaps 791: * In this case, we've located a submacro and must
792: * execute it. Close out scope, if open. If no
793: * elements have been generated, either create one (nc)
794: * or raise a warning.
795: */
1.1 kristaps 796:
1.191 schwarze 797: if (ntok != TOKEN_NONE) {
1.149 schwarze 798: if (scope)
799: rew_elem(mdoc, tok);
1.150 schwarze 800: if (nc && ! cnt) {
801: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 802: rew_last(mdoc, mdoc->last);
1.150 schwarze 803: } else if ( ! nc && ! cnt) {
1.7 kristaps 804: mdoc_argv_free(arg);
1.135 schwarze 805: mandoc_msg(MANDOCERR_MACRO_EMPTY,
806: mdoc->parse, line, ppos,
807: mdoc_macronames[tok]);
1.7 kristaps 808: }
1.151 schwarze 809: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 810: if (nl)
811: append_delims(mdoc, line, pos, buf);
1.151 schwarze 812: return;
1.131 schwarze 813: }
1.1 kristaps 814:
1.131 schwarze 815: /*
1.4 kristaps 816: * Non-quote-enclosed punctuation. Set up our scope, if
817: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 818: * the word.
1.4 kristaps 819: */
1.1 kristaps 820:
1.150 schwarze 821: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 822:
1.70 kristaps 823: if (DELIM_NONE != d) {
824: /*
825: * If we encounter closing punctuation, no word
1.144 schwarze 826: * has been emitted, no scope is open, and we're
1.70 kristaps 827: * allowed to have an empty element, then start
1.142 schwarze 828: * a new scope.
1.70 kristaps 829: */
1.142 schwarze 830: if ((d == DELIM_CLOSE ||
831: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 832: !cnt && !scope && nc && mayopen) {
1.150 schwarze 833: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 834: scope = 1;
1.142 schwarze 835: cnt++;
1.150 schwarze 836: if (tok == MDOC_Nm)
1.142 schwarze 837: mayopen = 0;
1.70 kristaps 838: }
839: /*
840: * Close out our scope, if one is open, before
841: * any punctuation.
842: */
1.149 schwarze 843: if (scope)
844: rew_elem(mdoc, tok);
1.70 kristaps 845: scope = 0;
1.145 schwarze 846: if (tok == MDOC_Fn)
847: mayopen = 0;
1.142 schwarze 848: } else if (mayopen && !scope) {
1.150 schwarze 849: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 850: scope = 1;
1.142 schwarze 851: cnt++;
1.1 kristaps 852: }
1.105 kristaps 853:
1.150 schwarze 854: dword(mdoc, line, la, p, d,
855: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 856:
857: /*
1.144 schwarze 858: * If the first argument is a closing delimiter,
859: * do not suppress spacing before it.
860: */
861:
862: if (firstarg && d == DELIM_CLOSE && !nc)
863: mdoc->last->flags &= ~MDOC_DELIMC;
864: firstarg = 0;
865:
866: /*
1.39 kristaps 867: * `Fl' macros have their scope re-opened with each new
868: * word so that the `-' can be added to each one without
869: * having to parse out spaces.
870: */
1.150 schwarze 871: if (scope && tok == MDOC_Fl) {
1.149 schwarze 872: rew_elem(mdoc, tok);
1.70 kristaps 873: scope = 0;
1.39 kristaps 874: }
1.1 kristaps 875: }
876:
1.149 schwarze 877: if (scope)
878: rew_elem(mdoc, tok);
1.4 kristaps 879:
880: /*
881: * If no elements have been collected and we're allowed to have
882: * empties (nc), open a scope and close it out. Otherwise,
883: * raise a warning.
884: */
1.45 kristaps 885:
1.150 schwarze 886: if ( ! cnt) {
887: if (nc) {
888: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
889: rew_last(mdoc, mdoc->last);
890: } else {
891: mdoc_argv_free(arg);
892: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
893: line, ppos, mdoc_macronames[tok]);
894: }
1.7 kristaps 895: }
1.150 schwarze 896: if (nl)
897: append_delims(mdoc, line, pos, buf);
1.1 kristaps 898: }
899:
1.151 schwarze 900: static void
1.1 kristaps 901: blk_full(MACRO_PROT_ARGS)
902: {
1.153 schwarze 903: int la, nl, parsed;
1.1 kristaps 904: struct mdoc_arg *arg;
1.185 schwarze 905: struct roff_node *blk; /* Our own or a broken block. */
906: struct roff_node *head; /* Our own head. */
907: struct roff_node *body; /* Our own body. */
908: struct roff_node *n;
1.59 kristaps 909: enum margserr ac, lac;
1.1 kristaps 910: char *p;
911:
1.119 schwarze 912: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 913:
1.177 schwarze 914: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
915: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
916: line, ppos, mdoc_macronames[tok]);
917: return;
918: }
919:
1.171 schwarze 920: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
921:
922: /* Here, tok is one of Sh Ss Nm Nd It. */
923:
924: blk = NULL;
925: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 926: if (n->flags & MDOC_ENDED) {
927: if ( ! (n->flags & MDOC_VALID))
928: n->flags |= MDOC_BROKEN;
929: continue;
930: }
1.184 schwarze 931: if (n->type != ROFFT_BLOCK)
1.171 schwarze 932: continue;
1.183 schwarze 933:
1.171 schwarze 934: if (tok == MDOC_It && n->tok == MDOC_Bl) {
935: if (blk != NULL) {
936: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
937: mdoc->parse, line, ppos,
938: "It breaks %s",
939: mdoc_macronames[blk->tok]);
940: rew_pending(mdoc, blk);
941: }
942: break;
943: }
944:
945: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
946: switch (tok) {
947: case MDOC_Sh:
948: case MDOC_Ss:
949: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
950: mdoc->parse, line, ppos,
951: "%s breaks %s",
952: mdoc_macronames[tok],
953: mdoc_macronames[n->tok]);
954: rew_pending(mdoc, n);
1.180 schwarze 955: n = mdoc->last;
1.171 schwarze 956: continue;
957: case MDOC_It:
958: /* Delay in case it's astray. */
959: blk = n;
960: continue;
961: default:
962: break;
963: }
964: break;
965: }
966:
967: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 968:
1.171 schwarze 969: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
970: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
971: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 972: break;
1.171 schwarze 973:
974: /* Item breaking an explicit block. */
975:
976: if (blk != NULL) {
977: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
978: mdoc->parse, line, ppos,
979: "It breaks %s",
980: mdoc_macronames[blk->tok]);
981: rew_pending(mdoc, blk);
1.172 schwarze 982: blk = NULL;
1.171 schwarze 983: }
984:
985: /* Close out prior implicit scopes. */
986:
987: rew_last(mdoc, n);
988: }
989:
990: /* Skip items outside lists. */
991:
992: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 993: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
994: line, ppos, "It %s", buf + *pos);
1.193 schwarze 995: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149 schwarze 996: rew_elem(mdoc, MDOC_br);
1.151 schwarze 997: return;
1.138 schwarze 998: }
1.1 kristaps 999: }
1000:
1.45 kristaps 1001: /*
1.109 kristaps 1002: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1003: * macro openings. Implicit ones first close out prior scope
1004: * (seen above). Delay opening the head until necessary to
1005: * allow leading punctuation to print. Special consideration
1006: * for `It -column', which has phrase-part syntax instead of
1007: * regular child nodes.
1008: */
1009:
1.152 schwarze 1010: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1011: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1012: head = body = NULL;
1.115 schwarze 1013:
1014: /*
1015: * Exception: Heads of `It' macros in `-diag' lists are not
1016: * parsed, even though `It' macros in general are parsed.
1017: */
1.151 schwarze 1018:
1.153 schwarze 1019: parsed = tok != MDOC_It ||
1020: mdoc->last->parent->tok != MDOC_Bl ||
1021: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1022:
1.45 kristaps 1023: /*
1024: * The `Nd' macro has all arguments in its body: it's a hybrid
1025: * of block partial-explicit and full-implicit. Stupid.
1026: */
1.19 kristaps 1027:
1.150 schwarze 1028: if (tok == MDOC_Nd) {
1.190 schwarze 1029: head = roff_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1030: rew_last(mdoc, head);
1.190 schwarze 1031: body = roff_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1032: }
1033:
1.150 schwarze 1034: if (tok == MDOC_Bk)
1.123 schwarze 1035: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1036:
1.205 ! schwarze 1037: ac = ARGS_EOLN;
1.150 schwarze 1038: for (;;) {
1.205 ! schwarze 1039:
! 1040: /*
! 1041: * If we are right after a tab character,
! 1042: * do not parse the first word for macros.
! 1043: */
! 1044:
! 1045: if (mdoc->flags & MDOC_PHRASEQN) {
! 1046: mdoc->flags &= ~MDOC_PHRASEQN;
! 1047: mdoc->flags |= MDOC_PHRASEQF;
! 1048: }
! 1049:
1.45 kristaps 1050: la = *pos;
1.150 schwarze 1051: lac = ac;
1.119 schwarze 1052: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1053: if (ac == ARGS_EOLN) {
1.205 ! schwarze 1054: if (lac != ARGS_PHRASE ||
! 1055: ! (mdoc->flags & MDOC_PHRASEQF))
1.75 kristaps 1056: break;
1.205 ! schwarze 1057:
1.75 kristaps 1058: /*
1.205 ! schwarze 1059: * This line ends in a tab; start the next
! 1060: * column now, with a leading blank.
1.75 kristaps 1061: */
1.205 ! schwarze 1062:
1.167 schwarze 1063: if (body != NULL)
1064: rew_last(mdoc, body);
1.190 schwarze 1065: body = roff_body_alloc(mdoc, line, ppos, tok);
1.205 ! schwarze 1066: roff_word_alloc(mdoc, line, ppos, "\\&");
1.1 kristaps 1067: break;
1.75 kristaps 1068: }
1.205 ! schwarze 1069:
1.174 schwarze 1070: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1071: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1072: mdoc->parse, line, la, "%s ... %s",
1073: mdoc_macronames[tok], buf + la);
1074: break;
1075: }
1.173 schwarze 1076: if (tok == MDOC_Rs) {
1077: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1078: line, la, "Rs %s", buf + la);
1079: break;
1080: }
1081: if (ac == ARGS_PUNCT)
1082: break;
1.45 kristaps 1083:
1.131 schwarze 1084: /*
1.73 kristaps 1085: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1086: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1087: */
1.45 kristaps 1088:
1.150 schwarze 1089: if (head == NULL &&
1090: ac != ARGS_PHRASE &&
1091: ac != ARGS_QWORD &&
1092: mdoc_isdelim(p) == DELIM_OPEN) {
1093: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1094: continue;
1095: }
1096:
1.74 kristaps 1097: /* Open a head if one hasn't been opened. */
1.45 kristaps 1098:
1.150 schwarze 1099: if (head == NULL)
1.190 schwarze 1100: head = roff_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1101:
1.205 ! schwarze 1102: if (ac == ARGS_PHRASE) {
1.151 schwarze 1103:
1.73 kristaps 1104: /*
1.74 kristaps 1105: * If we haven't opened a body yet, rewind the
1106: * head; if we have, rewind that instead.
1107: */
1108:
1.167 schwarze 1109: rew_last(mdoc, body == NULL ? head : body);
1.190 schwarze 1110: body = roff_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1111:
1.205 ! schwarze 1112: /* Process to the tab or to the end of the line. */
1.74 kristaps 1113:
1.205 ! schwarze 1114: mdoc->flags |= MDOC_PHRASE;
1.191 schwarze 1115: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205 ! schwarze 1116: mdoc->flags &= ~MDOC_PHRASE;
1.204 schwarze 1117:
1118: /* There may have been `Ta' macros. */
1119:
1120: while (body->next != NULL)
1121: body = body->next;
1.1 kristaps 1122: continue;
1123: }
1124:
1.153 schwarze 1125: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1126: break;
1.45 kristaps 1127: }
1.1 kristaps 1128:
1.165 schwarze 1129: if (blk->flags & MDOC_VALID)
1130: return;
1.150 schwarze 1131: if (head == NULL)
1.190 schwarze 1132: head = roff_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1133: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1134: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1135: if (body != NULL)
1.77 kristaps 1136: goto out;
1.187 schwarze 1137: if (find_pending(mdoc, tok, line, ppos, head))
1.183 schwarze 1138: return;
1.47 kristaps 1139:
1.45 kristaps 1140: /* Close out scopes to remain in a consistent state. */
1141:
1.167 schwarze 1142: rew_last(mdoc, head);
1.190 schwarze 1143: body = roff_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1144: out:
1.150 schwarze 1145: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1146: rew_last(mdoc, body);
1147: rew_last(mdoc, blk);
1.150 schwarze 1148: mdoc->flags &= ~MDOC_FREECOL;
1149: }
1.1 kristaps 1150: }
1151:
1.151 schwarze 1152: static void
1.1 kristaps 1153: blk_part_imp(MACRO_PROT_ARGS)
1154: {
1.63 kristaps 1155: int la, nl;
1.55 kristaps 1156: enum margserr ac;
1.1 kristaps 1157: char *p;
1.185 schwarze 1158: struct roff_node *blk; /* saved block context */
1159: struct roff_node *body; /* saved body context */
1160: struct roff_node *n;
1.1 kristaps 1161:
1.119 schwarze 1162: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1163:
1.43 kristaps 1164: /*
1165: * A macro that spans to the end of the line. This is generally
1166: * (but not necessarily) called as the first macro. The block
1167: * has a head as the immediate child, which is always empty,
1168: * followed by zero or more opening punctuation nodes, then the
1169: * body (which may be empty, depending on the macro), then zero
1170: * or more closing punctuation nodes.
1171: */
1.32 kristaps 1172:
1.150 schwarze 1173: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190 schwarze 1174: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1175:
1.43 kristaps 1176: /*
1177: * Open the body scope "on-demand", that is, after we've
1178: * processed all our the leading delimiters (open parenthesis,
1179: * etc.).
1180: */
1.1 kristaps 1181:
1.43 kristaps 1182: for (body = NULL; ; ) {
1.32 kristaps 1183: la = *pos;
1.119 schwarze 1184: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1185: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1186: break;
1187:
1.150 schwarze 1188: if (body == NULL && ac != ARGS_QWORD &&
1189: mdoc_isdelim(p) == DELIM_OPEN) {
1190: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1191: continue;
1.123 schwarze 1192: }
1.1 kristaps 1193:
1.150 schwarze 1194: if (body == NULL)
1.190 schwarze 1195: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1196:
1.153 schwarze 1197: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1198: break;
1.1 kristaps 1199: }
1.150 schwarze 1200: if (body == NULL)
1.190 schwarze 1201: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1202:
1.187 schwarze 1203: if (find_pending(mdoc, tok, line, ppos, body))
1.183 schwarze 1204: return;
1205:
1.164 schwarze 1206: rew_last(mdoc, body);
1.150 schwarze 1207: if (nl)
1208: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1209: rew_pending(mdoc, blk);
1.117 schwarze 1210:
1211: /* Move trailing .Ns out of scope. */
1212:
1213: for (n = body->child; n && n->next; n = n->next)
1214: /* Do nothing. */ ;
1.150 schwarze 1215: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1216: mdoc_node_relink(mdoc, n);
1.1 kristaps 1217: }
1218:
1.151 schwarze 1219: static void
1.1 kristaps 1220: blk_part_exp(MACRO_PROT_ARGS)
1221: {
1.60 kristaps 1222: int la, nl;
1.55 kristaps 1223: enum margserr ac;
1.185 schwarze 1224: struct roff_node *head; /* keep track of head */
1.1 kristaps 1225: char *p;
1226:
1.119 schwarze 1227: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1228:
1.43 kristaps 1229: /*
1230: * The opening of an explicit macro having zero or more leading
1231: * punctuation nodes; a head with optional single element (the
1232: * case of `Eo'); and a body that may be empty.
1233: */
1.32 kristaps 1234:
1.193 schwarze 1235: roff_block_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1236: head = NULL;
1237: for (;;) {
1.32 kristaps 1238: la = *pos;
1.119 schwarze 1239: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1240: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1241: break;
1.43 kristaps 1242:
1243: /* Flush out leading punctuation. */
1244:
1.150 schwarze 1245: if (head == NULL && ac != ARGS_QWORD &&
1246: mdoc_isdelim(p) == DELIM_OPEN) {
1247: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1248: continue;
1.123 schwarze 1249: }
1.43 kristaps 1250:
1.150 schwarze 1251: if (head == NULL) {
1.190 schwarze 1252: head = roff_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1253: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1254: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1255: rew_last(mdoc, head);
1.190 schwarze 1256: roff_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1257: if (tok == MDOC_Eo)
1.43 kristaps 1258: continue;
1.1 kristaps 1259: }
1.43 kristaps 1260:
1.153 schwarze 1261: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1262: break;
1.1 kristaps 1263: }
1264:
1.43 kristaps 1265: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1266:
1.163 schwarze 1267: if (head == NULL) {
1.190 schwarze 1268: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1269: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1270: }
1.150 schwarze 1271: if (nl)
1272: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1273: }
1274:
1.151 schwarze 1275: static void
1.1 kristaps 1276: in_line_argn(MACRO_PROT_ARGS)
1277: {
1.53 kristaps 1278: struct mdoc_arg *arg;
1279: char *p;
1.181 schwarze 1280: enum margserr ac;
1.185 schwarze 1281: int ntok;
1.181 schwarze 1282: int state; /* arg#; -1: not yet open; -2: closed */
1283: int la, maxargs, nl;
1.1 kristaps 1284:
1.156 schwarze 1285: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1286:
1.46 kristaps 1287: /*
1288: * A line macro that has a fixed number of arguments (maxargs).
1289: * Only open the scope once the first non-leading-punctuation is
1290: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1291: * keep it open until the maximum number of arguments are
1292: * exhausted.
1293: */
1.1 kristaps 1294:
1295: switch (tok) {
1.131 schwarze 1296: case MDOC_Ap:
1297: case MDOC_Ns:
1298: case MDOC_Ux:
1.1 kristaps 1299: maxargs = 0;
1300: break;
1.131 schwarze 1301: case MDOC_Bx:
1.132 schwarze 1302: case MDOC_Es:
1.131 schwarze 1303: case MDOC_Xr:
1.42 kristaps 1304: maxargs = 2;
1305: break;
1.1 kristaps 1306: default:
1307: maxargs = 1;
1308: break;
1309: }
1310:
1.152 schwarze 1311: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1312:
1.181 schwarze 1313: state = -1;
1.156 schwarze 1314: p = NULL;
1315: for (;;) {
1.32 kristaps 1316: la = *pos;
1.119 schwarze 1317: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1318:
1319: if (ac == ARGS_WORD && state == -1 &&
1320: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1321: mdoc_isdelim(p) == DELIM_OPEN) {
1322: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1323: continue;
1324: }
1325:
1326: if (state == -1 && tok != MDOC_In &&
1327: tok != MDOC_St && tok != MDOC_Xr) {
1328: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1329: state = 0;
1330: }
1331:
1.156 schwarze 1332: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1333: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1334: mandoc_vmsg(MANDOCERR_PF_SKIP,
1335: mdoc->parse, line, ppos, "Pf %s",
1336: p == NULL ? "at eol" : p);
1.1 kristaps 1337: break;
1.156 schwarze 1338: }
1.1 kristaps 1339:
1.181 schwarze 1340: if (state == maxargs) {
1.149 schwarze 1341: rew_elem(mdoc, tok);
1.181 schwarze 1342: state = -2;
1.46 kristaps 1343: }
1344:
1.181 schwarze 1345: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191 schwarze 1346: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1347:
1.191 schwarze 1348: if (ntok != TOKEN_NONE) {
1.181 schwarze 1349: if (state >= 0) {
1.149 schwarze 1350: rew_elem(mdoc, tok);
1.181 schwarze 1351: state = -2;
1352: }
1.151 schwarze 1353: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1354: break;
1355: }
1356:
1.181 schwarze 1357: if (ac == ARGS_QWORD ||
1358: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1359: mdoc_isdelim(p) == DELIM_NONE) {
1360: if (state == -1) {
1361: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1362: state = 1;
1363: } else if (state >= 0)
1364: state++;
1365: } else if (state >= 0) {
1.149 schwarze 1366: rew_elem(mdoc, tok);
1.181 schwarze 1367: state = -2;
1.1 kristaps 1368: }
1.42 kristaps 1369:
1.150 schwarze 1370: dword(mdoc, line, la, p, DELIM_MAX,
1371: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1372: }
1373:
1.181 schwarze 1374: if (state == -1) {
1375: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1376: line, ppos, mdoc_macronames[tok]);
1377: return;
1.156 schwarze 1378: }
1.181 schwarze 1379:
1380: if (state == 0 && tok == MDOC_Pf)
1381: append_delims(mdoc, line, pos, buf);
1382: if (state >= 0)
1.149 schwarze 1383: rew_elem(mdoc, tok);
1.150 schwarze 1384: if (nl)
1385: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1386: }
1387:
1.151 schwarze 1388: static void
1.1 kristaps 1389: in_line_eoln(MACRO_PROT_ARGS)
1390: {
1.185 schwarze 1391: struct roff_node *n;
1.170 schwarze 1392: struct mdoc_arg *arg;
1.1 kristaps 1393:
1.170 schwarze 1394: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1395: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1396: n = mdoc->last;
1.189 schwarze 1397: if (mdoc->next == ROFF_NEXT_SIBLING)
1.170 schwarze 1398: n = n->parent;
1399: if (n->tok == MDOC_Nm)
1.198 schwarze 1400: rew_last(mdoc, n->parent);
1.178 schwarze 1401: }
1402:
1.179 schwarze 1403: if (buf[*pos] == '\0' &&
1404: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1405: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1406: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1407: return;
1.170 schwarze 1408: }
1.90 schwarze 1409:
1.152 schwarze 1410: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1411: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1412: if (parse_rest(mdoc, tok, line, pos, buf))
1413: return;
1414: rew_elem(mdoc, tok);
1415: }
1416:
1417: /*
1418: * The simplest argument parser available: Parse the remaining
1419: * words until the end of the phrase or line and return 0
1420: * or until the next macro, call that macro, and return 1.
1421: */
1422: static int
1.189 schwarze 1423: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1424: {
1425: int la;
1.1 kristaps 1426:
1427: for (;;) {
1428: la = *pos;
1.153 schwarze 1429: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202 schwarze 1430: return 0;
1.153 schwarze 1431: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202 schwarze 1432: return 1;
1.1 kristaps 1433: }
1434: }
1435:
1.151 schwarze 1436: static void
1.41 kristaps 1437: ctx_synopsis(MACRO_PROT_ARGS)
1438: {
1.60 kristaps 1439:
1.151 schwarze 1440: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1441: in_line(mdoc, tok, line, ppos, pos, buf);
1442: else if (tok == MDOC_Nm)
1443: blk_full(mdoc, tok, line, ppos, pos, buf);
1444: else {
1445: assert(tok == MDOC_Vt);
1446: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1447: }
1.1 kristaps 1448: }
1449:
1.24 kristaps 1450: /*
1451: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1452: * They're unusual because they're basically free-form text until a
1453: * macro is encountered.
1454: */
1.151 schwarze 1455: static void
1.75 kristaps 1456: phrase_ta(MACRO_PROT_ARGS)
1457: {
1.185 schwarze 1458: struct roff_node *body, *n;
1.75 kristaps 1459:
1.121 schwarze 1460: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1461:
1.167 schwarze 1462: body = NULL;
1463: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1464: if (n->flags & MDOC_ENDED)
1.167 schwarze 1465: continue;
1.184 schwarze 1466: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1467: body = n;
1468: if (n->tok == MDOC_Bl)
1469: break;
1470: }
1471:
1.151 schwarze 1472: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1473: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1474: line, ppos, "Ta");
1.151 schwarze 1475: return;
1.121 schwarze 1476: }
1.75 kristaps 1477:
1.121 schwarze 1478: /* Advance to the next column. */
1.150 schwarze 1479:
1.167 schwarze 1480: rew_last(mdoc, body);
1.190 schwarze 1481: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191 schwarze 1482: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75 kristaps 1483: }
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