Annotation of mandoc/man_term.c, Revision 1.111
1.111 ! kristaps 1: /* $Id: man_term.c,v 1.110 2011/06/18 17:36:52 kristaps Exp $ */
1.1 kristaps 2: /*
1.98 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.94 schwarze 4: * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.55 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.28 kristaps 22: #include <sys/types.h>
23:
1.1 kristaps 24: #include <assert.h>
1.18 kristaps 25: #include <ctype.h>
1.1 kristaps 26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
29:
1.71 kristaps 30: #include "mandoc.h"
1.40 kristaps 31: #include "out.h"
1.36 kristaps 32: #include "man.h"
1.1 kristaps 33: #include "term.h"
1.36 kristaps 34: #include "main.h"
1.1 kristaps 35:
1.18 kristaps 36: #define INDENT 7
37: #define HALFINDENT 3
38:
1.44 kristaps 39: /* FIXME: have PD set the default vspace width. */
40:
1.24 kristaps 41: struct mtermp {
42: int fl;
1.19 kristaps 43: #define MANT_LITERAL (1 << 0)
1.26 kristaps 44: /*
45: * Default amount to indent the left margin after leading text
46: * has been printed (e.g., `HP' left-indent, `TP' and `IP' body
47: * indent). This needs to be saved because `HP' and so on, if
48: * not having a specified value, must default.
49: *
50: * Note that this is the indentation AFTER the left offset, so
51: * the total offset is usually offset + lmargin.
52: */
53: size_t lmargin;
54: /*
55: * The default offset, i.e., the amount between any text and the
56: * page boundary.
57: */
58: size_t offset;
1.24 kristaps 59: };
1.19 kristaps 60:
1.1 kristaps 61: #define DECL_ARGS struct termp *p, \
1.24 kristaps 62: struct mtermp *mt, \
1.1 kristaps 63: const struct man_node *n, \
64: const struct man_meta *m
65:
66: struct termact {
67: int (*pre)(DECL_ARGS);
68: void (*post)(DECL_ARGS);
1.56 kristaps 69: int flags;
70: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 71: };
72:
1.77 kristaps 73: static int a2width(const struct termp *, const char *);
74: static size_t a2height(const struct termp *, const char *);
1.39 kristaps 75:
1.52 kristaps 76: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 77: static void print_man_node(DECL_ARGS);
1.74 kristaps 78: static void print_man_head(struct termp *, const void *);
1.73 kristaps 79: static void print_man_foot(struct termp *, const void *);
1.39 kristaps 80: static void print_bvspace(struct termp *,
81: const struct man_node *);
82:
1.88 kristaps 83: static int pre_alternate(DECL_ARGS);
1.1 kristaps 84: static int pre_B(DECL_ARGS);
1.19 kristaps 85: static int pre_HP(DECL_ARGS);
1.1 kristaps 86: static int pre_I(DECL_ARGS);
1.4 kristaps 87: static int pre_IP(DECL_ARGS);
1.1 kristaps 88: static int pre_PP(DECL_ARGS);
1.26 kristaps 89: static int pre_RS(DECL_ARGS);
1.1 kristaps 90: static int pre_SH(DECL_ARGS);
91: static int pre_SS(DECL_ARGS);
92: static int pre_TP(DECL_ARGS);
1.29 kristaps 93: static int pre_ign(DECL_ARGS);
1.83 kristaps 94: static int pre_in(DECL_ARGS);
1.84 kristaps 95: static int pre_literal(DECL_ARGS);
1.19 kristaps 96: static int pre_sp(DECL_ARGS);
1.89 kristaps 97: static int pre_ft(DECL_ARGS);
1.1 kristaps 98:
1.22 kristaps 99: static void post_IP(DECL_ARGS);
1.20 kristaps 100: static void post_HP(DECL_ARGS);
1.26 kristaps 101: static void post_RS(DECL_ARGS);
1.1 kristaps 102: static void post_SH(DECL_ARGS);
103: static void post_SS(DECL_ARGS);
1.21 kristaps 104: static void post_TP(DECL_ARGS);
1.1 kristaps 105:
1.32 kristaps 106: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 107: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 108: { NULL, NULL, 0 }, /* TH */
109: { pre_SH, post_SH, 0 }, /* SH */
110: { pre_SS, post_SS, 0 }, /* SS */
111: { pre_TP, post_TP, 0 }, /* TP */
112: { pre_PP, NULL, 0 }, /* LP */
113: { pre_PP, NULL, 0 }, /* PP */
114: { pre_PP, NULL, 0 }, /* P */
115: { pre_IP, post_IP, 0 }, /* IP */
116: { pre_HP, post_HP, 0 }, /* HP */
117: { NULL, NULL, 0 }, /* SM */
118: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 119: { pre_alternate, NULL, 0 }, /* BI */
120: { pre_alternate, NULL, 0 }, /* IB */
121: { pre_alternate, NULL, 0 }, /* BR */
122: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 123: { NULL, NULL, 0 }, /* R */
124: { pre_B, NULL, 0 }, /* B */
125: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 126: { pre_alternate, NULL, 0 }, /* IR */
127: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 128: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 129: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 130: { pre_literal, NULL, 0 }, /* nf */
131: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 132: { NULL, NULL, 0 }, /* RE */
133: { pre_RS, post_RS, 0 }, /* RS */
134: { pre_ign, NULL, 0 }, /* DT */
135: { pre_ign, NULL, 0 }, /* UC */
136: { pre_ign, NULL, 0 }, /* PD */
1.70 joerg 137: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 138: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 139: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.1 kristaps 140: };
141:
142:
143:
1.31 kristaps 144: void
1.36 kristaps 145: terminal_man(void *arg, const struct man *man)
1.1 kristaps 146: {
1.36 kristaps 147: struct termp *p;
148: const struct man_node *n;
149: const struct man_meta *m;
150: struct mtermp mt;
151:
152: p = (struct termp *)arg;
153:
1.58 kristaps 154: p->overstep = 0;
1.65 joerg 155: p->maxrmargin = p->defrmargin;
1.77 kristaps 156: p->tabwidth = term_len(p, 5);
1.73 kristaps 157:
1.36 kristaps 158: if (NULL == p->symtab)
1.109 kristaps 159: p->symtab = mchars_alloc();
1.36 kristaps 160:
161: n = man_node(man);
162: m = man_meta(man);
1.1 kristaps 163:
1.75 schwarze 164: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 165: p->flags |= TERMP_NOSPACE;
1.19 kristaps 166:
1.24 kristaps 167: mt.fl = 0;
1.77 kristaps 168: mt.lmargin = term_len(p, INDENT);
169: mt.offset = term_len(p, INDENT);
1.24 kristaps 170:
1.36 kristaps 171: if (n->child)
1.52 kristaps 172: print_man_nodelist(p, &mt, n->child, m);
1.73 kristaps 173:
174: term_end(p);
1.1 kristaps 175: }
176:
177:
1.77 kristaps 178: static size_t
179: a2height(const struct termp *p, const char *cp)
1.18 kristaps 180: {
1.40 kristaps 181: struct roffsu su;
1.18 kristaps 182:
1.77 kristaps 183: if ( ! a2roffsu(cp, &su, SCALE_VS))
184: SCALE_VS_INIT(&su, term_strlen(p, cp));
1.18 kristaps 185:
1.77 kristaps 186: return(term_vspan(p, &su));
1.18 kristaps 187: }
188:
189:
190: static int
1.77 kristaps 191: a2width(const struct termp *p, const char *cp)
1.38 kristaps 192: {
1.40 kristaps 193: struct roffsu su;
1.38 kristaps 194:
1.77 kristaps 195: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 196: return(-1);
1.40 kristaps 197:
1.77 kristaps 198: return((int)term_hspan(p, &su));
1.38 kristaps 199: }
200:
1.111 ! kristaps 201: /*
! 202: * Printing leading vertical space before a block.
! 203: * This is used for the paragraph macros.
! 204: * The rules are pretty simple, since there's very little nesting going
! 205: * on here. Basically, if we're the first within another block (SS/SH),
! 206: * then don't emit vertical space. If we are (RS), then do. If not the
! 207: * first, print it.
! 208: */
1.39 kristaps 209: static void
210: print_bvspace(struct termp *p, const struct man_node *n)
1.18 kristaps 211: {
1.111 ! kristaps 212:
1.39 kristaps 213: term_newln(p);
1.101 schwarze 214:
1.111 ! kristaps 215: if (n->body && n->body->child)
! 216: if (MAN_TBL == n->body->child->type)
! 217: return;
! 218:
! 219: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
! 220: if (NULL == n->prev)
! 221: return;
1.18 kristaps 222:
1.39 kristaps 223: term_vspace(p);
1.18 kristaps 224: }
225:
1.3 kristaps 226: /* ARGSUSED */
1.1 kristaps 227: static int
1.29 kristaps 228: pre_ign(DECL_ARGS)
229: {
230:
231: return(0);
232: }
233:
234:
235: /* ARGSUSED */
236: static int
1.1 kristaps 237: pre_I(DECL_ARGS)
238: {
239:
1.52 kristaps 240: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 241: return(1);
242: }
243:
244:
245: /* ARGSUSED */
1.3 kristaps 246: static int
1.84 kristaps 247: pre_literal(DECL_ARGS)
1.19 kristaps 248: {
249:
1.81 kristaps 250: term_newln(p);
1.88 kristaps 251:
252: if (MAN_nf == n->tok)
1.84 kristaps 253: mt->fl |= MANT_LITERAL;
1.88 kristaps 254: else
1.84 kristaps 255: mt->fl &= ~MANT_LITERAL;
256:
1.99 schwarze 257: return(0);
1.19 kristaps 258: }
259:
260: /* ARGSUSED */
261: static int
1.88 kristaps 262: pre_alternate(DECL_ARGS)
1.3 kristaps 263: {
1.88 kristaps 264: enum termfont font[2];
265: const struct man_node *nn;
266: int savelit, i;
1.3 kristaps 267:
1.88 kristaps 268: switch (n->tok) {
269: case (MAN_RB):
270: font[0] = TERMFONT_NONE;
271: font[1] = TERMFONT_BOLD;
272: break;
273: case (MAN_RI):
274: font[0] = TERMFONT_NONE;
275: font[1] = TERMFONT_UNDER;
276: break;
277: case (MAN_BR):
278: font[0] = TERMFONT_BOLD;
279: font[1] = TERMFONT_NONE;
280: break;
281: case (MAN_BI):
282: font[0] = TERMFONT_BOLD;
283: font[1] = TERMFONT_UNDER;
284: break;
285: case (MAN_IR):
286: font[0] = TERMFONT_UNDER;
287: font[1] = TERMFONT_NONE;
288: break;
289: case (MAN_IB):
290: font[0] = TERMFONT_UNDER;
291: font[1] = TERMFONT_BOLD;
292: break;
293: default:
294: abort();
295: }
1.35 kristaps 296:
1.88 kristaps 297: savelit = MANT_LITERAL & mt->fl;
298: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 299:
1.88 kristaps 300: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
301: term_fontrepl(p, font[i]);
302: if (savelit && NULL == nn->next)
303: mt->fl |= MANT_LITERAL;
1.45 kristaps 304: print_man_node(p, mt, nn, m);
1.88 kristaps 305: if (nn->next)
1.4 kristaps 306: p->flags |= TERMP_NOSPACE;
1.3 kristaps 307: }
308:
309: return(0);
310: }
311:
312: /* ARGSUSED */
1.1 kristaps 313: static int
314: pre_B(DECL_ARGS)
315: {
316:
1.52 kristaps 317: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 318: return(1);
1.89 kristaps 319: }
320:
321: /* ARGSUSED */
322: static int
323: pre_ft(DECL_ARGS)
324: {
325: const char *cp;
326:
327: if (NULL == n->child) {
328: term_fontlast(p);
329: return(0);
330: }
331:
332: cp = n->child->string;
333: switch (*cp) {
334: case ('4'):
335: /* FALLTHROUGH */
336: case ('3'):
337: /* FALLTHROUGH */
338: case ('B'):
339: term_fontrepl(p, TERMFONT_BOLD);
340: break;
341: case ('2'):
342: /* FALLTHROUGH */
343: case ('I'):
344: term_fontrepl(p, TERMFONT_UNDER);
345: break;
346: case ('P'):
347: term_fontlast(p);
348: break;
349: case ('1'):
350: /* FALLTHROUGH */
351: case ('C'):
352: /* FALLTHROUGH */
353: case ('R'):
354: term_fontrepl(p, TERMFONT_NONE);
355: break;
356: default:
357: break;
358: }
359: return(0);
1.83 kristaps 360: }
361:
362: /* ARGSUSED */
363: static int
364: pre_in(DECL_ARGS)
365: {
366: int len, less;
367: size_t v;
368: const char *cp;
369:
370: term_newln(p);
371:
372: if (NULL == n->child) {
373: p->offset = mt->offset;
374: return(0);
375: }
376:
377: cp = n->child->string;
378: less = 0;
379:
380: if ('-' == *cp)
381: less = -1;
382: else if ('+' == *cp)
383: less = 1;
384: else
385: cp--;
386:
387: if ((len = a2width(p, ++cp)) < 0)
388: return(0);
389:
390: v = (size_t)len;
391:
392: if (less < 0)
393: p->offset -= p->offset > v ? v : p->offset;
394: else if (less > 0)
395: p->offset += v;
396: else
397: p->offset = v;
1.95 kristaps 398:
399: /* Don't let this creep beyond the right margin. */
400:
401: if (p->offset > p->rmargin)
402: p->offset = p->rmargin;
1.83 kristaps 403:
404: return(0);
1.1 kristaps 405: }
406:
407:
1.3 kristaps 408: /* ARGSUSED */
1.1 kristaps 409: static int
1.19 kristaps 410: pre_sp(DECL_ARGS)
411: {
1.77 kristaps 412: size_t i, len;
1.19 kristaps 413:
1.82 kristaps 414: switch (n->tok) {
415: case (MAN_br):
416: len = 0;
417: break;
418: default:
419: len = n->child ? a2height(p, n->child->string) : 1;
420: break;
421: }
1.38 kristaps 422:
1.19 kristaps 423: if (0 == len)
424: term_newln(p);
1.82 kristaps 425: for (i = 0; i < len; i++)
1.19 kristaps 426: term_vspace(p);
427:
1.15 kristaps 428: return(0);
429: }
430:
431:
432: /* ARGSUSED */
433: static int
1.19 kristaps 434: pre_HP(DECL_ARGS)
435: {
1.24 kristaps 436: size_t len;
437: int ival;
438: const struct man_node *nn;
1.19 kristaps 439:
1.20 kristaps 440: switch (n->type) {
441: case (MAN_BLOCK):
1.39 kristaps 442: print_bvspace(p, n);
1.24 kristaps 443: return(1);
1.20 kristaps 444: case (MAN_BODY):
445: p->flags |= TERMP_NOBREAK;
446: p->flags |= TERMP_TWOSPACE;
447: break;
448: default:
449: return(0);
450: }
451:
1.26 kristaps 452: len = mt->lmargin;
1.24 kristaps 453: ival = -1;
454:
455: /* Calculate offset. */
456:
1.39 kristaps 457: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 458: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 459: len = (size_t)ival;
460:
461: if (0 == len)
1.77 kristaps 462: len = term_len(p, 1);
1.24 kristaps 463:
1.26 kristaps 464: p->offset = mt->offset;
465: p->rmargin = mt->offset + len;
1.24 kristaps 466:
467: if (ival >= 0)
1.26 kristaps 468: mt->lmargin = (size_t)ival;
1.24 kristaps 469:
1.19 kristaps 470: return(1);
471: }
472:
473:
474: /* ARGSUSED */
1.20 kristaps 475: static void
476: post_HP(DECL_ARGS)
477: {
478:
479: switch (n->type) {
1.24 kristaps 480: case (MAN_BLOCK):
481: term_flushln(p);
482: break;
1.20 kristaps 483: case (MAN_BODY):
484: term_flushln(p);
485: p->flags &= ~TERMP_NOBREAK;
486: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 487: p->offset = mt->offset;
1.20 kristaps 488: p->rmargin = p->maxrmargin;
489: break;
490: default:
491: break;
492: }
493: }
494:
495:
496: /* ARGSUSED */
1.19 kristaps 497: static int
1.1 kristaps 498: pre_PP(DECL_ARGS)
499: {
500:
1.19 kristaps 501: switch (n->type) {
502: case (MAN_BLOCK):
1.77 kristaps 503: mt->lmargin = term_len(p, INDENT);
1.39 kristaps 504: print_bvspace(p, n);
1.19 kristaps 505: break;
506: default:
1.26 kristaps 507: p->offset = mt->offset;
1.19 kristaps 508: break;
509: }
510:
1.87 kristaps 511: return(MAN_HEAD != n->type);
1.1 kristaps 512: }
513:
514:
1.3 kristaps 515: /* ARGSUSED */
1.1 kristaps 516: static int
1.4 kristaps 517: pre_IP(DECL_ARGS)
518: {
1.22 kristaps 519: const struct man_node *nn;
520: size_t len;
1.94 schwarze 521: int savelit, ival;
1.18 kristaps 522:
1.22 kristaps 523: switch (n->type) {
524: case (MAN_BODY):
525: p->flags |= TERMP_NOLPAD;
526: p->flags |= TERMP_NOSPACE;
527: break;
528: case (MAN_HEAD):
529: p->flags |= TERMP_NOBREAK;
530: break;
1.23 kristaps 531: case (MAN_BLOCK):
1.39 kristaps 532: print_bvspace(p, n);
1.23 kristaps 533: /* FALLTHROUGH */
1.22 kristaps 534: default:
535: return(1);
536: }
1.18 kristaps 537:
1.26 kristaps 538: len = mt->lmargin;
1.22 kristaps 539: ival = -1;
1.4 kristaps 540:
1.94 schwarze 541: /* Calculate the offset from the optional second argument. */
1.22 kristaps 542: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 543: if (NULL != (nn = nn->next))
1.77 kristaps 544: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 545: len = (size_t)ival;
1.4 kristaps 546:
1.22 kristaps 547: switch (n->type) {
548: case (MAN_HEAD):
1.23 kristaps 549: /* Handle zero-width lengths. */
550: if (0 == len)
1.77 kristaps 551: len = term_len(p, 1);
1.23 kristaps 552:
1.26 kristaps 553: p->offset = mt->offset;
554: p->rmargin = mt->offset + len;
1.22 kristaps 555: if (ival < 0)
556: break;
1.18 kristaps 557:
1.24 kristaps 558: /* Set the saved left-margin. */
1.26 kristaps 559: mt->lmargin = (size_t)ival;
1.24 kristaps 560:
1.94 schwarze 561: savelit = MANT_LITERAL & mt->fl;
562: mt->fl &= ~MANT_LITERAL;
563:
564: if (n->child)
565: print_man_node(p, mt, n->child, m);
566:
567: if (savelit)
568: mt->fl |= MANT_LITERAL;
569:
1.22 kristaps 570: return(0);
1.23 kristaps 571: case (MAN_BODY):
1.26 kristaps 572: p->offset = mt->offset + len;
1.23 kristaps 573: p->rmargin = p->maxrmargin;
574: break;
1.22 kristaps 575: default:
576: break;
1.18 kristaps 577: }
578:
1.22 kristaps 579: return(1);
580: }
1.18 kristaps 581:
582:
1.22 kristaps 583: /* ARGSUSED */
584: static void
585: post_IP(DECL_ARGS)
586: {
1.4 kristaps 587:
1.22 kristaps 588: switch (n->type) {
589: case (MAN_HEAD):
590: term_flushln(p);
591: p->flags &= ~TERMP_NOBREAK;
592: p->rmargin = p->maxrmargin;
593: break;
594: case (MAN_BODY):
1.94 schwarze 595: term_newln(p);
1.22 kristaps 596: p->flags &= ~TERMP_NOLPAD;
597: break;
598: default:
599: break;
600: }
1.4 kristaps 601: }
602:
603:
604: /* ARGSUSED */
605: static int
1.1 kristaps 606: pre_TP(DECL_ARGS)
607: {
1.23 kristaps 608: const struct man_node *nn;
609: size_t len;
1.94 schwarze 610: int savelit, ival;
1.1 kristaps 611:
1.21 kristaps 612: switch (n->type) {
613: case (MAN_HEAD):
614: p->flags |= TERMP_NOBREAK;
615: break;
616: case (MAN_BODY):
617: p->flags |= TERMP_NOLPAD;
618: p->flags |= TERMP_NOSPACE;
1.23 kristaps 619: break;
620: case (MAN_BLOCK):
1.39 kristaps 621: print_bvspace(p, n);
1.23 kristaps 622: /* FALLTHROUGH */
623: default:
624: return(1);
625: }
626:
1.24 kristaps 627: len = (size_t)mt->lmargin;
1.23 kristaps 628: ival = -1;
629:
630: /* Calculate offset. */
631:
1.56 kristaps 632: if (NULL != (nn = n->parent->head->child)) {
633: while (nn && MAN_TEXT != nn->type)
634: nn = nn->next;
635: if (nn && nn->next)
1.77 kristaps 636: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 637: len = (size_t)ival;
1.56 kristaps 638: }
1.23 kristaps 639:
640: switch (n->type) {
641: case (MAN_HEAD):
642: /* Handle zero-length properly. */
643: if (0 == len)
1.77 kristaps 644: len = term_len(p, 1);
1.23 kristaps 645:
1.26 kristaps 646: p->offset = mt->offset;
647: p->rmargin = mt->offset + len;
1.23 kristaps 648:
1.94 schwarze 649: savelit = MANT_LITERAL & mt->fl;
650: mt->fl &= ~MANT_LITERAL;
651:
1.23 kristaps 652: /* Don't print same-line elements. */
1.94 schwarze 653: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 654: if (nn->line > n->line)
1.45 kristaps 655: print_man_node(p, mt, nn, m);
1.24 kristaps 656:
1.94 schwarze 657: if (savelit)
658: mt->fl |= MANT_LITERAL;
659:
1.24 kristaps 660: if (ival >= 0)
1.26 kristaps 661: mt->lmargin = (size_t)ival;
1.24 kristaps 662:
1.23 kristaps 663: return(0);
664: case (MAN_BODY):
1.26 kristaps 665: p->offset = mt->offset + len;
1.23 kristaps 666: p->rmargin = p->maxrmargin;
1.21 kristaps 667: break;
668: default:
669: break;
670: }
1.16 kristaps 671:
1.21 kristaps 672: return(1);
673: }
1.1 kristaps 674:
675:
1.21 kristaps 676: /* ARGSUSED */
677: static void
678: post_TP(DECL_ARGS)
679: {
1.1 kristaps 680:
1.21 kristaps 681: switch (n->type) {
682: case (MAN_HEAD):
683: term_flushln(p);
684: p->flags &= ~TERMP_NOBREAK;
685: p->flags &= ~TERMP_TWOSPACE;
686: p->rmargin = p->maxrmargin;
687: break;
688: case (MAN_BODY):
1.94 schwarze 689: term_newln(p);
1.21 kristaps 690: p->flags &= ~TERMP_NOLPAD;
691: break;
692: default:
693: break;
694: }
1.1 kristaps 695: }
696:
697:
1.3 kristaps 698: /* ARGSUSED */
1.1 kristaps 699: static int
700: pre_SS(DECL_ARGS)
701: {
702:
1.19 kristaps 703: switch (n->type) {
704: case (MAN_BLOCK):
1.77 kristaps 705: mt->lmargin = term_len(p, INDENT);
706: mt->offset = term_len(p, INDENT);
1.24 kristaps 707: /* If following a prior empty `SS', no vspace. */
708: if (n->prev && MAN_SS == n->prev->tok)
709: if (NULL == n->prev->body->child)
710: break;
711: if (NULL == n->prev)
712: break;
713: term_vspace(p);
1.19 kristaps 714: break;
715: case (MAN_HEAD):
1.52 kristaps 716: term_fontrepl(p, TERMFONT_BOLD);
1.77 kristaps 717: p->offset = term_len(p, HALFINDENT);
1.19 kristaps 718: break;
1.24 kristaps 719: case (MAN_BODY):
1.26 kristaps 720: p->offset = mt->offset;
1.24 kristaps 721: break;
1.19 kristaps 722: default:
723: break;
724: }
725:
1.1 kristaps 726: return(1);
727: }
728:
729:
1.3 kristaps 730: /* ARGSUSED */
1.1 kristaps 731: static void
732: post_SS(DECL_ARGS)
733: {
734:
1.19 kristaps 735: switch (n->type) {
736: case (MAN_HEAD):
737: term_newln(p);
738: break;
1.24 kristaps 739: case (MAN_BODY):
740: term_newln(p);
741: break;
1.19 kristaps 742: default:
743: break;
744: }
1.1 kristaps 745: }
746:
747:
1.3 kristaps 748: /* ARGSUSED */
1.1 kristaps 749: static int
750: pre_SH(DECL_ARGS)
751: {
1.22 kristaps 752:
1.19 kristaps 753: switch (n->type) {
754: case (MAN_BLOCK):
1.77 kristaps 755: mt->lmargin = term_len(p, INDENT);
756: mt->offset = term_len(p, INDENT);
1.22 kristaps 757: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 758: if (n->prev && MAN_SH == n->prev->tok)
759: if (NULL == n->prev->body->child)
760: break;
1.61 kristaps 761: /* If the first macro, no vspae. */
762: if (NULL == n->prev)
763: break;
1.19 kristaps 764: term_vspace(p);
765: break;
766: case (MAN_HEAD):
1.52 kristaps 767: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 768: p->offset = 0;
769: break;
770: case (MAN_BODY):
1.26 kristaps 771: p->offset = mt->offset;
1.19 kristaps 772: break;
773: default:
774: break;
775: }
1.1 kristaps 776:
777: return(1);
778: }
779:
780:
1.3 kristaps 781: /* ARGSUSED */
1.1 kristaps 782: static void
783: post_SH(DECL_ARGS)
784: {
785:
1.19 kristaps 786: switch (n->type) {
787: case (MAN_HEAD):
788: term_newln(p);
789: break;
790: case (MAN_BODY):
791: term_newln(p);
792: break;
793: default:
794: break;
795: }
1.1 kristaps 796: }
797:
1.26 kristaps 798: /* ARGSUSED */
799: static int
800: pre_RS(DECL_ARGS)
801: {
1.110 kristaps 802: int ival;
803: size_t sz;
1.26 kristaps 804:
805: switch (n->type) {
806: case (MAN_BLOCK):
807: term_newln(p);
808: return(1);
809: case (MAN_HEAD):
810: return(0);
811: default:
812: break;
813: }
814:
1.110 kristaps 815: sz = term_len(p, INDENT);
1.26 kristaps 816:
1.110 kristaps 817: if (NULL != (n = n->parent->head->child))
818: if ((ival = a2width(p, n->string)) >= 0)
819: sz = (size_t)ival;
1.26 kristaps 820:
1.110 kristaps 821: mt->offset += sz;
1.26 kristaps 822: p->offset = mt->offset;
823:
824: return(1);
825: }
826:
827: /* ARGSUSED */
828: static void
829: post_RS(DECL_ARGS)
830: {
1.110 kristaps 831: int ival;
832: size_t sz;
1.26 kristaps 833:
834: switch (n->type) {
835: case (MAN_BLOCK):
1.110 kristaps 836: return;
1.59 kristaps 837: case (MAN_HEAD):
1.110 kristaps 838: return;
1.26 kristaps 839: default:
840: term_newln(p);
841: break;
842: }
1.110 kristaps 843:
844: sz = term_len(p, INDENT);
845:
846: if (NULL != (n = n->parent->head->child))
847: if ((ival = a2width(p, n->string)) >= 0)
848: sz = (size_t)ival;
849:
850: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
851: p->offset = mt->offset;
1.26 kristaps 852: }
853:
1.1 kristaps 854: static void
1.45 kristaps 855: print_man_node(DECL_ARGS)
1.1 kristaps 856: {
1.65 joerg 857: size_t rm, rmax;
1.54 kristaps 858: int c;
1.1 kristaps 859:
860: switch (n->type) {
861: case(MAN_TEXT):
1.97 kristaps 862: /*
863: * If we have a blank line, output a vertical space.
864: * If we have a space as the first character, break
865: * before printing the line's data.
866: */
1.96 kristaps 867: if ('\0' == *n->string) {
1.4 kristaps 868: term_vspace(p);
1.98 schwarze 869: return;
1.97 kristaps 870: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 871: term_newln(p);
1.54 kristaps 872:
1.4 kristaps 873: term_word(p, n->string);
1.52 kristaps 874:
1.97 kristaps 875: /*
876: * If we're in a literal context, make sure that words
877: * togehter on the same line stay together. This is a
878: * POST-printing call, so we check the NEXT word. Since
879: * -man doesn't have nested macros, we don't need to be
880: * more specific than this.
881: */
882: if (MANT_LITERAL & mt->fl &&
883: (NULL == n->next ||
884: n->next->line > n->line)) {
1.65 joerg 885: rm = p->rmargin;
886: rmax = p->maxrmargin;
1.60 kristaps 887: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.19 kristaps 888: p->flags |= TERMP_NOSPACE;
889: term_flushln(p);
1.94 schwarze 890: p->flags &= ~TERMP_NOLPAD;
1.65 joerg 891: p->rmargin = rm;
892: p->maxrmargin = rmax;
1.19 kristaps 893: }
1.100 schwarze 894:
895: if (MAN_EOS & n->flags)
896: p->flags |= TERMP_SENTENCE;
1.102 kristaps 897: return;
898: case (MAN_EQN):
1.103 kristaps 899: term_word(p, n->eqn->data);
1.97 kristaps 900: return;
1.91 kristaps 901: case (MAN_TBL):
1.97 kristaps 902: /*
903: * Tables are preceded by a newline. Then process a
904: * table line, which will cause line termination,
905: */
1.93 kristaps 906: if (TBL_SPAN_FIRST & n->span->flags)
907: term_newln(p);
1.92 kristaps 908: term_tbl(p, n->span);
1.97 kristaps 909: return;
1.1 kristaps 910: default:
911: break;
912: }
913:
1.97 kristaps 914: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
915: term_fontrepl(p, TERMFONT_NONE);
916:
917: c = 1;
918: if (termacts[n->tok].pre)
919: c = (*termacts[n->tok].pre)(p, mt, n, m);
920:
1.1 kristaps 921: if (c && n->child)
1.52 kristaps 922: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 923:
1.97 kristaps 924: if (termacts[n->tok].post)
925: (*termacts[n->tok].post)(p, mt, n, m);
926: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
927: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 928:
929: if (MAN_EOS & n->flags)
930: p->flags |= TERMP_SENTENCE;
1.1 kristaps 931: }
932:
933:
934: static void
1.52 kristaps 935: print_man_nodelist(DECL_ARGS)
1.1 kristaps 936: {
1.19 kristaps 937:
1.45 kristaps 938: print_man_node(p, mt, n, m);
1.1 kristaps 939: if ( ! n->next)
940: return;
1.52 kristaps 941: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 942: }
943:
944:
1.31 kristaps 945: static void
1.73 kristaps 946: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 947: {
1.73 kristaps 948: const struct man_meta *meta;
949:
950: meta = (const struct man_meta *)arg;
1.1 kristaps 951:
1.52 kristaps 952: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 953:
1.69 joerg 954: term_vspace(p);
955: term_vspace(p);
1.1 kristaps 956: term_vspace(p);
957:
958: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.104 schwarze 959: p->rmargin = p->maxrmargin - term_strlen(p, meta->date);
1.1 kristaps 960: p->offset = 0;
1.85 kristaps 961:
962: /* term_strlen() can return zero. */
963: if (p->rmargin == p->maxrmargin)
964: p->rmargin--;
1.1 kristaps 965:
966: if (meta->source)
967: term_word(p, meta->source);
968: if (meta->source)
969: term_word(p, "");
970: term_flushln(p);
971:
972: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
973: p->offset = p->rmargin;
974: p->rmargin = p->maxrmargin;
975: p->flags &= ~TERMP_NOBREAK;
976:
1.104 schwarze 977: term_word(p, meta->date);
1.1 kristaps 978: term_flushln(p);
979: }
980:
981:
1.31 kristaps 982: static void
1.73 kristaps 983: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 984: {
1.46 kristaps 985: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 986: size_t buflen, titlen;
1.73 kristaps 987: const struct man_meta *m;
988:
989: m = (const struct man_meta *)arg;
1.1 kristaps 990:
1.62 kristaps 991: /*
992: * Note that old groff would spit out some spaces before the
993: * header. We discontinue this strange behaviour, but at one
994: * point we did so here.
995: */
996:
1.1 kristaps 997: p->rmargin = p->maxrmargin;
1.58 kristaps 998:
1.1 kristaps 999: p->offset = 0;
1.46 kristaps 1000: buf[0] = title[0] = '\0';
1.1 kristaps 1001:
1.46 kristaps 1002: if (m->vol)
1003: strlcpy(buf, m->vol, BUFSIZ);
1.77 kristaps 1004: buflen = term_strlen(p, buf);
1.1 kristaps 1005:
1.64 kristaps 1006: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.77 kristaps 1007: titlen = term_strlen(p, title);
1.1 kristaps 1008:
1009: p->offset = 0;
1.57 kristaps 1010: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1011: (p->maxrmargin -
1012: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1013: p->maxrmargin - buflen;
1.1 kristaps 1014: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1015:
1016: term_word(p, title);
1017: term_flushln(p);
1018:
1019: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1020: p->offset = p->rmargin;
1.57 kristaps 1021: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1022: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1023:
1024: term_word(p, buf);
1025: term_flushln(p);
1026:
1027: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1028: if (p->rmargin + titlen <= p->maxrmargin) {
1029: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1030: p->offset = p->rmargin;
1031: p->rmargin = p->maxrmargin;
1032: term_word(p, title);
1033: term_flushln(p);
1034: }
1.1 kristaps 1035:
1036: p->rmargin = p->maxrmargin;
1037: p->offset = 0;
1038: p->flags &= ~TERMP_NOSPACE;
1.61 kristaps 1039:
1.62 kristaps 1040: /*
1041: * Groff likes to have some leading spaces before content. Well
1042: * that's fine by me.
1043: */
1044:
1.61 kristaps 1045: term_vspace(p);
1046: term_vspace(p);
1047: term_vspace(p);
1.1 kristaps 1048: }
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