Annotation of mandoc/man_term.c, Revision 1.107
1.107 ! kristaps 1: /* $Id: man_term.c,v 1.106 2011/04/29 22:18:12 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)
159: switch (p->enc) {
160: case (TERMENC_ASCII):
1.107 ! kristaps 161: p->symtab = mchars_init();
1.36 kristaps 162: break;
163: default:
164: abort();
165: /* NOTREACHED */
166: }
167:
168: n = man_node(man);
169: m = man_meta(man);
1.1 kristaps 170:
1.75 schwarze 171: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 172: p->flags |= TERMP_NOSPACE;
1.19 kristaps 173:
1.24 kristaps 174: mt.fl = 0;
1.77 kristaps 175: mt.lmargin = term_len(p, INDENT);
176: mt.offset = term_len(p, INDENT);
1.24 kristaps 177:
1.36 kristaps 178: if (n->child)
1.52 kristaps 179: print_man_nodelist(p, &mt, n->child, m);
1.73 kristaps 180:
181: term_end(p);
1.1 kristaps 182: }
183:
184:
1.77 kristaps 185: static size_t
186: a2height(const struct termp *p, const char *cp)
1.18 kristaps 187: {
1.40 kristaps 188: struct roffsu su;
1.18 kristaps 189:
1.77 kristaps 190: if ( ! a2roffsu(cp, &su, SCALE_VS))
191: SCALE_VS_INIT(&su, term_strlen(p, cp));
1.18 kristaps 192:
1.77 kristaps 193: return(term_vspan(p, &su));
1.18 kristaps 194: }
195:
196:
197: static int
1.77 kristaps 198: a2width(const struct termp *p, const char *cp)
1.38 kristaps 199: {
1.40 kristaps 200: struct roffsu su;
1.38 kristaps 201:
1.77 kristaps 202: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 203: return(-1);
1.40 kristaps 204:
1.77 kristaps 205: return((int)term_hspan(p, &su));
1.38 kristaps 206: }
207:
208:
1.39 kristaps 209: static void
210: print_bvspace(struct termp *p, const struct man_node *n)
1.18 kristaps 211: {
1.39 kristaps 212: term_newln(p);
1.101 schwarze 213:
214: if (n->body && n->body->child && MAN_TBL == n->body->child->type)
215: return;
1.18 kristaps 216:
1.39 kristaps 217: if (NULL == n->prev)
218: return;
1.18 kristaps 219:
1.39 kristaps 220: if (MAN_SS == n->prev->tok)
221: return;
222: if (MAN_SH == n->prev->tok)
223: return;
1.18 kristaps 224:
1.39 kristaps 225: term_vspace(p);
1.18 kristaps 226: }
227:
228:
1.3 kristaps 229: /* ARGSUSED */
1.1 kristaps 230: static int
1.29 kristaps 231: pre_ign(DECL_ARGS)
232: {
233:
234: return(0);
235: }
236:
237:
238: /* ARGSUSED */
239: static int
1.1 kristaps 240: pre_I(DECL_ARGS)
241: {
242:
1.52 kristaps 243: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 244: return(1);
245: }
246:
247:
248: /* ARGSUSED */
1.3 kristaps 249: static int
1.84 kristaps 250: pre_literal(DECL_ARGS)
1.19 kristaps 251: {
252:
1.81 kristaps 253: term_newln(p);
1.88 kristaps 254:
255: if (MAN_nf == n->tok)
1.84 kristaps 256: mt->fl |= MANT_LITERAL;
1.88 kristaps 257: else
1.84 kristaps 258: mt->fl &= ~MANT_LITERAL;
259:
1.99 schwarze 260: return(0);
1.19 kristaps 261: }
262:
263: /* ARGSUSED */
264: static int
1.88 kristaps 265: pre_alternate(DECL_ARGS)
1.3 kristaps 266: {
1.88 kristaps 267: enum termfont font[2];
268: const struct man_node *nn;
269: int savelit, i;
1.3 kristaps 270:
1.88 kristaps 271: switch (n->tok) {
272: case (MAN_RB):
273: font[0] = TERMFONT_NONE;
274: font[1] = TERMFONT_BOLD;
275: break;
276: case (MAN_RI):
277: font[0] = TERMFONT_NONE;
278: font[1] = TERMFONT_UNDER;
279: break;
280: case (MAN_BR):
281: font[0] = TERMFONT_BOLD;
282: font[1] = TERMFONT_NONE;
283: break;
284: case (MAN_BI):
285: font[0] = TERMFONT_BOLD;
286: font[1] = TERMFONT_UNDER;
287: break;
288: case (MAN_IR):
289: font[0] = TERMFONT_UNDER;
290: font[1] = TERMFONT_NONE;
291: break;
292: case (MAN_IB):
293: font[0] = TERMFONT_UNDER;
294: font[1] = TERMFONT_BOLD;
295: break;
296: default:
297: abort();
298: }
1.35 kristaps 299:
1.88 kristaps 300: savelit = MANT_LITERAL & mt->fl;
301: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 302:
1.88 kristaps 303: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
304: term_fontrepl(p, font[i]);
305: if (savelit && NULL == nn->next)
306: mt->fl |= MANT_LITERAL;
1.45 kristaps 307: print_man_node(p, mt, nn, m);
1.88 kristaps 308: if (nn->next)
1.4 kristaps 309: p->flags |= TERMP_NOSPACE;
1.3 kristaps 310: }
311:
312: return(0);
313: }
314:
315: /* ARGSUSED */
1.1 kristaps 316: static int
317: pre_B(DECL_ARGS)
318: {
319:
1.52 kristaps 320: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 321: return(1);
1.89 kristaps 322: }
323:
324: /* ARGSUSED */
325: static int
326: pre_ft(DECL_ARGS)
327: {
328: const char *cp;
329:
330: if (NULL == n->child) {
331: term_fontlast(p);
332: return(0);
333: }
334:
335: cp = n->child->string;
336: switch (*cp) {
337: case ('4'):
338: /* FALLTHROUGH */
339: case ('3'):
340: /* FALLTHROUGH */
341: case ('B'):
342: term_fontrepl(p, TERMFONT_BOLD);
343: break;
344: case ('2'):
345: /* FALLTHROUGH */
346: case ('I'):
347: term_fontrepl(p, TERMFONT_UNDER);
348: break;
349: case ('P'):
350: term_fontlast(p);
351: break;
352: case ('1'):
353: /* FALLTHROUGH */
354: case ('C'):
355: /* FALLTHROUGH */
356: case ('R'):
357: term_fontrepl(p, TERMFONT_NONE);
358: break;
359: default:
360: break;
361: }
362: return(0);
1.83 kristaps 363: }
364:
365: /* ARGSUSED */
366: static int
367: pre_in(DECL_ARGS)
368: {
369: int len, less;
370: size_t v;
371: const char *cp;
372:
373: term_newln(p);
374:
375: if (NULL == n->child) {
376: p->offset = mt->offset;
377: return(0);
378: }
379:
380: cp = n->child->string;
381: less = 0;
382:
383: if ('-' == *cp)
384: less = -1;
385: else if ('+' == *cp)
386: less = 1;
387: else
388: cp--;
389:
390: if ((len = a2width(p, ++cp)) < 0)
391: return(0);
392:
393: v = (size_t)len;
394:
395: if (less < 0)
396: p->offset -= p->offset > v ? v : p->offset;
397: else if (less > 0)
398: p->offset += v;
399: else
400: p->offset = v;
1.95 kristaps 401:
402: /* Don't let this creep beyond the right margin. */
403:
404: if (p->offset > p->rmargin)
405: p->offset = p->rmargin;
1.83 kristaps 406:
407: return(0);
1.1 kristaps 408: }
409:
410:
1.3 kristaps 411: /* ARGSUSED */
1.1 kristaps 412: static int
1.19 kristaps 413: pre_sp(DECL_ARGS)
414: {
1.77 kristaps 415: size_t i, len;
1.19 kristaps 416:
1.82 kristaps 417: switch (n->tok) {
418: case (MAN_br):
419: len = 0;
420: break;
421: default:
422: len = n->child ? a2height(p, n->child->string) : 1;
423: break;
424: }
1.38 kristaps 425:
1.19 kristaps 426: if (0 == len)
427: term_newln(p);
1.82 kristaps 428: for (i = 0; i < len; i++)
1.19 kristaps 429: term_vspace(p);
430:
1.15 kristaps 431: return(0);
432: }
433:
434:
435: /* ARGSUSED */
436: static int
1.19 kristaps 437: pre_HP(DECL_ARGS)
438: {
1.24 kristaps 439: size_t len;
440: int ival;
441: const struct man_node *nn;
1.19 kristaps 442:
1.20 kristaps 443: switch (n->type) {
444: case (MAN_BLOCK):
1.39 kristaps 445: print_bvspace(p, n);
1.24 kristaps 446: return(1);
1.20 kristaps 447: case (MAN_BODY):
448: p->flags |= TERMP_NOBREAK;
449: p->flags |= TERMP_TWOSPACE;
450: break;
451: default:
452: return(0);
453: }
454:
1.26 kristaps 455: len = mt->lmargin;
1.24 kristaps 456: ival = -1;
457:
458: /* Calculate offset. */
459:
1.39 kristaps 460: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 461: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 462: len = (size_t)ival;
463:
464: if (0 == len)
1.77 kristaps 465: len = term_len(p, 1);
1.24 kristaps 466:
1.26 kristaps 467: p->offset = mt->offset;
468: p->rmargin = mt->offset + len;
1.24 kristaps 469:
470: if (ival >= 0)
1.26 kristaps 471: mt->lmargin = (size_t)ival;
1.24 kristaps 472:
1.19 kristaps 473: return(1);
474: }
475:
476:
477: /* ARGSUSED */
1.20 kristaps 478: static void
479: post_HP(DECL_ARGS)
480: {
481:
482: switch (n->type) {
1.24 kristaps 483: case (MAN_BLOCK):
484: term_flushln(p);
485: break;
1.20 kristaps 486: case (MAN_BODY):
487: term_flushln(p);
488: p->flags &= ~TERMP_NOBREAK;
489: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 490: p->offset = mt->offset;
1.20 kristaps 491: p->rmargin = p->maxrmargin;
492: break;
493: default:
494: break;
495: }
496: }
497:
498:
499: /* ARGSUSED */
1.19 kristaps 500: static int
1.1 kristaps 501: pre_PP(DECL_ARGS)
502: {
503:
1.19 kristaps 504: switch (n->type) {
505: case (MAN_BLOCK):
1.77 kristaps 506: mt->lmargin = term_len(p, INDENT);
1.39 kristaps 507: print_bvspace(p, n);
1.19 kristaps 508: break;
509: default:
1.26 kristaps 510: p->offset = mt->offset;
1.19 kristaps 511: break;
512: }
513:
1.87 kristaps 514: return(MAN_HEAD != n->type);
1.1 kristaps 515: }
516:
517:
1.3 kristaps 518: /* ARGSUSED */
1.1 kristaps 519: static int
1.4 kristaps 520: pre_IP(DECL_ARGS)
521: {
1.22 kristaps 522: const struct man_node *nn;
523: size_t len;
1.94 schwarze 524: int savelit, ival;
1.18 kristaps 525:
1.22 kristaps 526: switch (n->type) {
527: case (MAN_BODY):
528: p->flags |= TERMP_NOLPAD;
529: p->flags |= TERMP_NOSPACE;
530: break;
531: case (MAN_HEAD):
532: p->flags |= TERMP_NOBREAK;
533: break;
1.23 kristaps 534: case (MAN_BLOCK):
1.39 kristaps 535: print_bvspace(p, n);
1.23 kristaps 536: /* FALLTHROUGH */
1.22 kristaps 537: default:
538: return(1);
539: }
1.18 kristaps 540:
1.26 kristaps 541: len = mt->lmargin;
1.22 kristaps 542: ival = -1;
1.4 kristaps 543:
1.94 schwarze 544: /* Calculate the offset from the optional second argument. */
1.22 kristaps 545: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 546: if (NULL != (nn = nn->next))
1.77 kristaps 547: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 548: len = (size_t)ival;
1.4 kristaps 549:
1.22 kristaps 550: switch (n->type) {
551: case (MAN_HEAD):
1.23 kristaps 552: /* Handle zero-width lengths. */
553: if (0 == len)
1.77 kristaps 554: len = term_len(p, 1);
1.23 kristaps 555:
1.26 kristaps 556: p->offset = mt->offset;
557: p->rmargin = mt->offset + len;
1.22 kristaps 558: if (ival < 0)
559: break;
1.18 kristaps 560:
1.24 kristaps 561: /* Set the saved left-margin. */
1.26 kristaps 562: mt->lmargin = (size_t)ival;
1.24 kristaps 563:
1.94 schwarze 564: savelit = MANT_LITERAL & mt->fl;
565: mt->fl &= ~MANT_LITERAL;
566:
567: if (n->child)
568: print_man_node(p, mt, n->child, m);
569:
570: if (savelit)
571: mt->fl |= MANT_LITERAL;
572:
1.22 kristaps 573: return(0);
1.23 kristaps 574: case (MAN_BODY):
1.26 kristaps 575: p->offset = mt->offset + len;
1.23 kristaps 576: p->rmargin = p->maxrmargin;
577: break;
1.22 kristaps 578: default:
579: break;
1.18 kristaps 580: }
581:
1.22 kristaps 582: return(1);
583: }
1.18 kristaps 584:
585:
1.22 kristaps 586: /* ARGSUSED */
587: static void
588: post_IP(DECL_ARGS)
589: {
1.4 kristaps 590:
1.22 kristaps 591: switch (n->type) {
592: case (MAN_HEAD):
593: term_flushln(p);
594: p->flags &= ~TERMP_NOBREAK;
595: p->rmargin = p->maxrmargin;
596: break;
597: case (MAN_BODY):
1.94 schwarze 598: term_newln(p);
1.22 kristaps 599: p->flags &= ~TERMP_NOLPAD;
600: break;
601: default:
602: break;
603: }
1.4 kristaps 604: }
605:
606:
607: /* ARGSUSED */
608: static int
1.1 kristaps 609: pre_TP(DECL_ARGS)
610: {
1.23 kristaps 611: const struct man_node *nn;
612: size_t len;
1.94 schwarze 613: int savelit, ival;
1.1 kristaps 614:
1.21 kristaps 615: switch (n->type) {
616: case (MAN_HEAD):
617: p->flags |= TERMP_NOBREAK;
618: break;
619: case (MAN_BODY):
620: p->flags |= TERMP_NOLPAD;
621: p->flags |= TERMP_NOSPACE;
1.23 kristaps 622: break;
623: case (MAN_BLOCK):
1.39 kristaps 624: print_bvspace(p, n);
1.23 kristaps 625: /* FALLTHROUGH */
626: default:
627: return(1);
628: }
629:
1.24 kristaps 630: len = (size_t)mt->lmargin;
1.23 kristaps 631: ival = -1;
632:
633: /* Calculate offset. */
634:
1.56 kristaps 635: if (NULL != (nn = n->parent->head->child)) {
636: while (nn && MAN_TEXT != nn->type)
637: nn = nn->next;
638: if (nn && nn->next)
1.77 kristaps 639: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 640: len = (size_t)ival;
1.56 kristaps 641: }
1.23 kristaps 642:
643: switch (n->type) {
644: case (MAN_HEAD):
645: /* Handle zero-length properly. */
646: if (0 == len)
1.77 kristaps 647: len = term_len(p, 1);
1.23 kristaps 648:
1.26 kristaps 649: p->offset = mt->offset;
650: p->rmargin = mt->offset + len;
1.23 kristaps 651:
1.94 schwarze 652: savelit = MANT_LITERAL & mt->fl;
653: mt->fl &= ~MANT_LITERAL;
654:
1.23 kristaps 655: /* Don't print same-line elements. */
1.94 schwarze 656: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 657: if (nn->line > n->line)
1.45 kristaps 658: print_man_node(p, mt, nn, m);
1.24 kristaps 659:
1.94 schwarze 660: if (savelit)
661: mt->fl |= MANT_LITERAL;
662:
1.24 kristaps 663: if (ival >= 0)
1.26 kristaps 664: mt->lmargin = (size_t)ival;
1.24 kristaps 665:
1.23 kristaps 666: return(0);
667: case (MAN_BODY):
1.26 kristaps 668: p->offset = mt->offset + len;
1.23 kristaps 669: p->rmargin = p->maxrmargin;
1.21 kristaps 670: break;
671: default:
672: break;
673: }
1.16 kristaps 674:
1.21 kristaps 675: return(1);
676: }
1.1 kristaps 677:
678:
1.21 kristaps 679: /* ARGSUSED */
680: static void
681: post_TP(DECL_ARGS)
682: {
1.1 kristaps 683:
1.21 kristaps 684: switch (n->type) {
685: case (MAN_HEAD):
686: term_flushln(p);
687: p->flags &= ~TERMP_NOBREAK;
688: p->flags &= ~TERMP_TWOSPACE;
689: p->rmargin = p->maxrmargin;
690: break;
691: case (MAN_BODY):
1.94 schwarze 692: term_newln(p);
1.21 kristaps 693: p->flags &= ~TERMP_NOLPAD;
694: break;
695: default:
696: break;
697: }
1.1 kristaps 698: }
699:
700:
1.3 kristaps 701: /* ARGSUSED */
1.1 kristaps 702: static int
703: pre_SS(DECL_ARGS)
704: {
705:
1.19 kristaps 706: switch (n->type) {
707: case (MAN_BLOCK):
1.77 kristaps 708: mt->lmargin = term_len(p, INDENT);
709: mt->offset = term_len(p, INDENT);
1.24 kristaps 710: /* If following a prior empty `SS', no vspace. */
711: if (n->prev && MAN_SS == n->prev->tok)
712: if (NULL == n->prev->body->child)
713: break;
714: if (NULL == n->prev)
715: break;
716: term_vspace(p);
1.19 kristaps 717: break;
718: case (MAN_HEAD):
1.52 kristaps 719: term_fontrepl(p, TERMFONT_BOLD);
1.77 kristaps 720: p->offset = term_len(p, HALFINDENT);
1.19 kristaps 721: break;
1.24 kristaps 722: case (MAN_BODY):
1.26 kristaps 723: p->offset = mt->offset;
1.24 kristaps 724: break;
1.19 kristaps 725: default:
726: break;
727: }
728:
1.1 kristaps 729: return(1);
730: }
731:
732:
1.3 kristaps 733: /* ARGSUSED */
1.1 kristaps 734: static void
735: post_SS(DECL_ARGS)
736: {
737:
1.19 kristaps 738: switch (n->type) {
739: case (MAN_HEAD):
740: term_newln(p);
741: break;
1.24 kristaps 742: case (MAN_BODY):
743: term_newln(p);
744: break;
1.19 kristaps 745: default:
746: break;
747: }
1.1 kristaps 748: }
749:
750:
1.3 kristaps 751: /* ARGSUSED */
1.1 kristaps 752: static int
753: pre_SH(DECL_ARGS)
754: {
1.22 kristaps 755:
1.19 kristaps 756: switch (n->type) {
757: case (MAN_BLOCK):
1.77 kristaps 758: mt->lmargin = term_len(p, INDENT);
759: mt->offset = term_len(p, INDENT);
1.22 kristaps 760: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 761: if (n->prev && MAN_SH == n->prev->tok)
762: if (NULL == n->prev->body->child)
763: break;
1.61 kristaps 764: /* If the first macro, no vspae. */
765: if (NULL == n->prev)
766: break;
1.19 kristaps 767: term_vspace(p);
768: break;
769: case (MAN_HEAD):
1.52 kristaps 770: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 771: p->offset = 0;
772: break;
773: case (MAN_BODY):
1.26 kristaps 774: p->offset = mt->offset;
1.19 kristaps 775: break;
776: default:
777: break;
778: }
1.1 kristaps 779:
780: return(1);
781: }
782:
783:
1.3 kristaps 784: /* ARGSUSED */
1.1 kristaps 785: static void
786: post_SH(DECL_ARGS)
787: {
788:
1.19 kristaps 789: switch (n->type) {
790: case (MAN_HEAD):
791: term_newln(p);
792: break;
793: case (MAN_BODY):
794: term_newln(p);
795: break;
796: default:
797: break;
798: }
1.1 kristaps 799: }
800:
801:
1.26 kristaps 802: /* ARGSUSED */
803: static int
804: pre_RS(DECL_ARGS)
805: {
806: const struct man_node *nn;
807: int ival;
808:
809: switch (n->type) {
810: case (MAN_BLOCK):
811: term_newln(p);
812: return(1);
813: case (MAN_HEAD):
814: return(0);
815: default:
816: break;
817: }
818:
819: if (NULL == (nn = n->parent->head->child)) {
1.77 kristaps 820: mt->offset = mt->lmargin + term_len(p, INDENT);
1.26 kristaps 821: p->offset = mt->offset;
822: return(1);
823: }
824:
1.77 kristaps 825: if ((ival = a2width(p, nn->string)) < 0)
1.26 kristaps 826: return(1);
827:
1.77 kristaps 828: mt->offset = term_len(p, INDENT) + (size_t)ival;
1.26 kristaps 829: p->offset = mt->offset;
830:
831: return(1);
832: }
833:
834:
835: /* ARGSUSED */
836: static void
837: post_RS(DECL_ARGS)
838: {
839:
840: switch (n->type) {
841: case (MAN_BLOCK):
1.77 kristaps 842: mt->offset = mt->lmargin = term_len(p, INDENT);
1.59 kristaps 843: break;
844: case (MAN_HEAD):
1.26 kristaps 845: break;
846: default:
847: term_newln(p);
1.77 kristaps 848: p->offset = term_len(p, INDENT);
1.26 kristaps 849: break;
850: }
851: }
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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