Annotation of src/usr.bin/mandoc/man_term.c, Revision 1.69
1.69 ! schwarze 1: /* $Id: man_term.c,v 1.68 2011/05/29 21:22:18 schwarze Exp $ */
1.1 kristaps 2: /*
1.58 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.57 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
1.2 schwarze 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: *
1.2 schwarze 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: */
1.13 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
1.11 schwarze 21: #include <ctype.h>
1.1 kristaps 22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <string.h>
25:
1.37 schwarze 26: #include "mandoc.h"
1.18 schwarze 27: #include "out.h"
28: #include "man.h"
1.1 kristaps 29: #include "term.h"
1.18 schwarze 30: #include "main.h"
1.10 schwarze 31:
32: #define INDENT 7
33: #define HALFINDENT 3
1.1 kristaps 34:
1.19 schwarze 35: /* FIXME: have PD set the default vspace width. */
36:
1.11 schwarze 37: struct mtermp {
38: int fl;
39: #define MANT_LITERAL (1 << 0)
1.13 schwarze 40: /*
41: * Default amount to indent the left margin after leading text
42: * has been printed (e.g., `HP' left-indent, `TP' and `IP' body
43: * indent). This needs to be saved because `HP' and so on, if
44: * not having a specified value, must default.
45: *
46: * Note that this is the indentation AFTER the left offset, so
47: * the total offset is usually offset + lmargin.
48: */
49: size_t lmargin;
50: /*
51: * The default offset, i.e., the amount between any text and the
52: * page boundary.
53: */
54: size_t offset;
1.11 schwarze 55: };
56:
1.1 kristaps 57: #define DECL_ARGS struct termp *p, \
1.11 schwarze 58: struct mtermp *mt, \
1.1 kristaps 59: const struct man_node *n, \
60: const struct man_meta *m
61:
62: struct termact {
63: int (*pre)(DECL_ARGS);
64: void (*post)(DECL_ARGS);
1.26 schwarze 65: int flags;
66: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 67: };
68:
1.42 schwarze 69: static int a2width(const struct termp *, const char *);
70: static size_t a2height(const struct termp *, const char *);
1.18 schwarze 71:
1.21 schwarze 72: static void print_man_nodelist(DECL_ARGS);
1.19 schwarze 73: static void print_man_node(DECL_ARGS);
1.41 schwarze 74: static void print_man_head(struct termp *, const void *);
75: static void print_man_foot(struct termp *, const void *);
1.18 schwarze 76: static void print_bvspace(struct termp *,
77: const struct man_node *);
78:
1.51 schwarze 79: static int pre_alternate(DECL_ARGS);
1.1 kristaps 80: static int pre_B(DECL_ARGS);
1.11 schwarze 81: static int pre_HP(DECL_ARGS);
1.1 kristaps 82: static int pre_I(DECL_ARGS);
83: static int pre_IP(DECL_ARGS);
84: static int pre_PP(DECL_ARGS);
1.13 schwarze 85: static int pre_RS(DECL_ARGS);
1.1 kristaps 86: static int pre_SH(DECL_ARGS);
87: static int pre_SS(DECL_ARGS);
88: static int pre_TP(DECL_ARGS);
1.14 schwarze 89: static int pre_ign(DECL_ARGS);
1.45 schwarze 90: static int pre_in(DECL_ARGS);
91: static int pre_literal(DECL_ARGS);
1.11 schwarze 92: static int pre_sp(DECL_ARGS);
1.52 schwarze 93: static int pre_ft(DECL_ARGS);
1.1 kristaps 94:
1.11 schwarze 95: static void post_IP(DECL_ARGS);
96: static void post_HP(DECL_ARGS);
1.13 schwarze 97: static void post_RS(DECL_ARGS);
1.1 kristaps 98: static void post_SH(DECL_ARGS);
99: static void post_SS(DECL_ARGS);
1.11 schwarze 100: static void post_TP(DECL_ARGS);
1.1 kristaps 101:
1.17 schwarze 102: static const struct termact termacts[MAN_MAX] = {
1.45 schwarze 103: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.26 schwarze 104: { NULL, NULL, 0 }, /* TH */
105: { pre_SH, post_SH, 0 }, /* SH */
106: { pre_SS, post_SS, 0 }, /* SS */
107: { pre_TP, post_TP, 0 }, /* TP */
108: { pre_PP, NULL, 0 }, /* LP */
109: { pre_PP, NULL, 0 }, /* PP */
110: { pre_PP, NULL, 0 }, /* P */
111: { pre_IP, post_IP, 0 }, /* IP */
112: { pre_HP, post_HP, 0 }, /* HP */
113: { NULL, NULL, 0 }, /* SM */
114: { pre_B, NULL, 0 }, /* SB */
1.51 schwarze 115: { pre_alternate, NULL, 0 }, /* BI */
116: { pre_alternate, NULL, 0 }, /* IB */
117: { pre_alternate, NULL, 0 }, /* BR */
118: { pre_alternate, NULL, 0 }, /* RB */
1.26 schwarze 119: { NULL, NULL, 0 }, /* R */
120: { pre_B, NULL, 0 }, /* B */
121: { pre_I, NULL, 0 }, /* I */
1.51 schwarze 122: { pre_alternate, NULL, 0 }, /* IR */
123: { pre_alternate, NULL, 0 }, /* RI */
1.62 schwarze 124: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.26 schwarze 125: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.45 schwarze 126: { pre_literal, NULL, 0 }, /* nf */
127: { pre_literal, NULL, 0 }, /* fi */
1.26 schwarze 128: { NULL, NULL, 0 }, /* RE */
129: { pre_RS, post_RS, 0 }, /* RS */
130: { pre_ign, NULL, 0 }, /* DT */
131: { pre_ign, NULL, 0 }, /* UC */
132: { pre_ign, NULL, 0 }, /* PD */
1.36 schwarze 133: { pre_ign, NULL, 0 }, /* AT */
1.45 schwarze 134: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.52 schwarze 135: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.1 kristaps 136: };
1.11 schwarze 137:
1.1 kristaps 138:
139:
1.16 schwarze 140: void
1.18 schwarze 141: terminal_man(void *arg, const struct man *man)
1.1 kristaps 142: {
1.18 schwarze 143: struct termp *p;
144: const struct man_node *n;
145: const struct man_meta *m;
146: struct mtermp mt;
147:
148: p = (struct termp *)arg;
149:
1.39 schwarze 150: p->overstep = 0;
1.32 schwarze 151: p->maxrmargin = p->defrmargin;
1.42 schwarze 152: p->tabwidth = term_len(p, 5);
1.27 schwarze 153:
1.18 schwarze 154: if (NULL == p->symtab)
1.68 schwarze 155: p->symtab = mchars_alloc();
1.18 schwarze 156:
157: n = man_node(man);
158: m = man_meta(man);
1.1 kristaps 159:
1.41 schwarze 160: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 161: p->flags |= TERMP_NOSPACE;
1.11 schwarze 162:
163: mt.fl = 0;
1.42 schwarze 164: mt.lmargin = term_len(p, INDENT);
165: mt.offset = term_len(p, INDENT);
1.11 schwarze 166:
1.18 schwarze 167: if (n->child)
1.21 schwarze 168: print_man_nodelist(p, &mt, n->child, m);
1.41 schwarze 169:
170: term_end(p);
1.1 kristaps 171: }
172:
173:
1.42 schwarze 174: static size_t
175: a2height(const struct termp *p, const char *cp)
1.11 schwarze 176: {
1.18 schwarze 177: struct roffsu su;
1.11 schwarze 178:
1.42 schwarze 179: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.69 ! schwarze 180: SCALE_VS_INIT(&su, atoi(cp));
1.11 schwarze 181:
1.42 schwarze 182: return(term_vspan(p, &su));
1.11 schwarze 183: }
184:
185:
186: static int
1.42 schwarze 187: a2width(const struct termp *p, const char *cp)
1.11 schwarze 188: {
1.18 schwarze 189: struct roffsu su;
1.11 schwarze 190:
1.42 schwarze 191: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.18 schwarze 192: return(-1);
193:
1.42 schwarze 194: return((int)term_hspan(p, &su));
1.18 schwarze 195: }
1.11 schwarze 196:
1.69 ! schwarze 197: /*
! 198: * Printing leading vertical space before a block.
! 199: * This is used for the paragraph macros.
! 200: * The rules are pretty simple, since there's very little nesting going
! 201: * on here. Basically, if we're the first within another block (SS/SH),
! 202: * then don't emit vertical space. If we are (RS), then do. If not the
! 203: * first, print it.
! 204: */
1.18 schwarze 205: static void
206: print_bvspace(struct termp *p, const struct man_node *n)
207: {
1.69 ! schwarze 208:
1.18 schwarze 209: term_newln(p);
1.64 schwarze 210:
1.69 ! schwarze 211: if (n->body && n->body->child)
! 212: if (MAN_TBL == n->body->child->type)
! 213: return;
1.11 schwarze 214:
1.69 ! schwarze 215: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
! 216: if (NULL == n->prev)
! 217: return;
1.11 schwarze 218:
1.18 schwarze 219: term_vspace(p);
1.14 schwarze 220: }
221:
222: /* ARGSUSED */
223: static int
224: pre_ign(DECL_ARGS)
225: {
226:
227: return(0);
1.11 schwarze 228: }
229:
230:
1.1 kristaps 231: /* ARGSUSED */
232: static int
233: pre_I(DECL_ARGS)
234: {
235:
1.21 schwarze 236: term_fontrepl(p, TERMFONT_UNDER);
1.1 kristaps 237: return(1);
238: }
239:
240:
241: /* ARGSUSED */
1.11 schwarze 242: static int
1.45 schwarze 243: pre_literal(DECL_ARGS)
1.11 schwarze 244: {
245:
1.45 schwarze 246: term_newln(p);
1.53 schwarze 247:
248: if (MAN_nf == n->tok)
1.45 schwarze 249: mt->fl |= MANT_LITERAL;
1.53 schwarze 250: else
1.45 schwarze 251: mt->fl &= ~MANT_LITERAL;
252:
1.62 schwarze 253: return(0);
1.11 schwarze 254: }
255:
256: /* ARGSUSED */
257: static int
1.51 schwarze 258: pre_alternate(DECL_ARGS)
1.1 kristaps 259: {
1.51 schwarze 260: enum termfont font[2];
261: const struct man_node *nn;
262: int savelit, i;
1.1 kristaps 263:
1.51 schwarze 264: switch (n->tok) {
265: case (MAN_RB):
266: font[0] = TERMFONT_NONE;
267: font[1] = TERMFONT_BOLD;
268: break;
269: case (MAN_RI):
270: font[0] = TERMFONT_NONE;
271: font[1] = TERMFONT_UNDER;
272: break;
273: case (MAN_BR):
274: font[0] = TERMFONT_BOLD;
275: font[1] = TERMFONT_NONE;
276: break;
277: case (MAN_BI):
278: font[0] = TERMFONT_BOLD;
279: font[1] = TERMFONT_UNDER;
280: break;
281: case (MAN_IR):
282: font[0] = TERMFONT_UNDER;
283: font[1] = TERMFONT_NONE;
284: break;
285: case (MAN_IB):
286: font[0] = TERMFONT_UNDER;
287: font[1] = TERMFONT_BOLD;
288: break;
289: default:
290: abort();
291: }
1.17 schwarze 292:
1.51 schwarze 293: savelit = MANT_LITERAL & mt->fl;
294: mt->fl &= ~MANT_LITERAL;
1.17 schwarze 295:
1.51 schwarze 296: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
297: term_fontrepl(p, font[i]);
298: if (savelit && NULL == nn->next)
299: mt->fl |= MANT_LITERAL;
1.19 schwarze 300: print_man_node(p, mt, nn, m);
1.51 schwarze 301: if (nn->next)
1.1 kristaps 302: p->flags |= TERMP_NOSPACE;
303: }
1.17 schwarze 304:
1.1 kristaps 305: return(0);
306: }
307:
308: /* ARGSUSED */
309: static int
310: pre_B(DECL_ARGS)
311: {
312:
1.21 schwarze 313: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 314: return(1);
1.52 schwarze 315: }
316:
317: /* ARGSUSED */
318: static int
319: pre_ft(DECL_ARGS)
320: {
321: const char *cp;
322:
323: if (NULL == n->child) {
324: term_fontlast(p);
325: return(0);
326: }
327:
328: cp = n->child->string;
329: switch (*cp) {
330: case ('4'):
331: /* FALLTHROUGH */
332: case ('3'):
333: /* FALLTHROUGH */
334: case ('B'):
335: term_fontrepl(p, TERMFONT_BOLD);
336: break;
337: case ('2'):
338: /* FALLTHROUGH */
339: case ('I'):
340: term_fontrepl(p, TERMFONT_UNDER);
341: break;
342: case ('P'):
343: term_fontlast(p);
344: break;
345: case ('1'):
346: /* FALLTHROUGH */
347: case ('C'):
348: /* FALLTHROUGH */
349: case ('R'):
350: term_fontrepl(p, TERMFONT_NONE);
351: break;
352: default:
353: break;
354: }
355: return(0);
1.1 kristaps 356: }
357:
358: /* ARGSUSED */
359: static int
1.45 schwarze 360: pre_in(DECL_ARGS)
1.11 schwarze 361: {
1.45 schwarze 362: int len, less;
363: size_t v;
364: const char *cp;
365:
366: term_newln(p);
367:
368: if (NULL == n->child) {
369: p->offset = mt->offset;
370: return(0);
371: }
1.11 schwarze 372:
1.45 schwarze 373: cp = n->child->string;
374: less = 0;
1.11 schwarze 375:
1.45 schwarze 376: if ('-' == *cp)
377: less = -1;
378: else if ('+' == *cp)
379: less = 1;
380: else
381: cp--;
382:
383: if ((len = a2width(p, ++cp)) < 0)
384: return(0);
385:
386: v = (size_t)len;
387:
388: if (less < 0)
389: p->offset -= p->offset > v ? v : p->offset;
390: else if (less > 0)
391: p->offset += v;
392: else
393: p->offset = v;
1.59 schwarze 394:
395: /* Don't let this creep beyond the right margin. */
396:
397: if (p->offset > p->rmargin)
398: p->offset = p->rmargin;
1.11 schwarze 399:
400: return(0);
401: }
402:
403:
404: /* ARGSUSED */
405: static int
1.45 schwarze 406: pre_sp(DECL_ARGS)
1.8 schwarze 407: {
1.45 schwarze 408: size_t i, len;
409:
1.69 ! schwarze 410: if ((NULL == n->prev && n->parent)) {
! 411: if (MAN_SS == n->parent->tok)
! 412: return(0);
! 413: if (MAN_SH == n->parent->tok)
! 414: return(0);
! 415: }
! 416:
1.45 schwarze 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: }
425:
426: if (0 == len)
427: term_newln(p);
428: for (i = 0; i < len; i++)
429: term_vspace(p);
1.8 schwarze 430:
431: return(0);
432: }
433:
434:
435: /* ARGSUSED */
436: static int
1.11 schwarze 437: pre_HP(DECL_ARGS)
438: {
439: size_t len;
440: int ival;
441: const struct man_node *nn;
442:
443: switch (n->type) {
444: case (MAN_BLOCK):
1.18 schwarze 445: print_bvspace(p, n);
1.11 schwarze 446: return(1);
447: case (MAN_BODY):
448: p->flags |= TERMP_NOBREAK;
449: p->flags |= TERMP_TWOSPACE;
450: break;
451: default:
452: return(0);
453: }
454:
1.13 schwarze 455: len = mt->lmargin;
1.11 schwarze 456: ival = -1;
457:
458: /* Calculate offset. */
459:
460: if (NULL != (nn = n->parent->head->child))
1.42 schwarze 461: if ((ival = a2width(p, nn->string)) >= 0)
1.11 schwarze 462: len = (size_t)ival;
463:
464: if (0 == len)
1.42 schwarze 465: len = term_len(p, 1);
1.11 schwarze 466:
1.13 schwarze 467: p->offset = mt->offset;
468: p->rmargin = mt->offset + len;
1.11 schwarze 469:
470: if (ival >= 0)
1.13 schwarze 471: mt->lmargin = (size_t)ival;
1.11 schwarze 472:
473: return(1);
474: }
475:
476:
477: /* ARGSUSED */
478: static void
479: post_HP(DECL_ARGS)
480: {
481:
482: switch (n->type) {
483: case (MAN_BLOCK):
484: term_flushln(p);
485: break;
486: case (MAN_BODY):
487: term_flushln(p);
488: p->flags &= ~TERMP_NOBREAK;
489: p->flags &= ~TERMP_TWOSPACE;
1.13 schwarze 490: p->offset = mt->offset;
1.11 schwarze 491: p->rmargin = p->maxrmargin;
492: break;
493: default:
494: break;
495: }
496: }
497:
498:
499: /* ARGSUSED */
500: static int
1.1 kristaps 501: pre_PP(DECL_ARGS)
502: {
503:
1.11 schwarze 504: switch (n->type) {
505: case (MAN_BLOCK):
1.42 schwarze 506: mt->lmargin = term_len(p, INDENT);
1.18 schwarze 507: print_bvspace(p, n);
1.11 schwarze 508: break;
509: default:
1.13 schwarze 510: p->offset = mt->offset;
1.11 schwarze 511: break;
512: }
513:
1.54 schwarze 514: return(MAN_HEAD != n->type);
1.1 kristaps 515: }
516:
517:
518: /* ARGSUSED */
519: static int
520: pre_IP(DECL_ARGS)
521: {
1.11 schwarze 522: const struct man_node *nn;
523: size_t len;
1.57 schwarze 524: int savelit, ival;
1.11 schwarze 525:
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;
534: case (MAN_BLOCK):
1.18 schwarze 535: print_bvspace(p, n);
1.11 schwarze 536: /* FALLTHROUGH */
537: default:
538: return(1);
539: }
540:
1.13 schwarze 541: len = mt->lmargin;
1.11 schwarze 542: ival = -1;
543:
1.57 schwarze 544: /* Calculate the offset from the optional second argument. */
1.11 schwarze 545: if (NULL != (nn = n->parent->head->child))
1.57 schwarze 546: if (NULL != (nn = nn->next))
1.42 schwarze 547: if ((ival = a2width(p, nn->string)) >= 0)
1.11 schwarze 548: len = (size_t)ival;
549:
550: switch (n->type) {
551: case (MAN_HEAD):
552: /* Handle zero-width lengths. */
553: if (0 == len)
1.42 schwarze 554: len = term_len(p, 1);
1.11 schwarze 555:
1.13 schwarze 556: p->offset = mt->offset;
557: p->rmargin = mt->offset + len;
1.11 schwarze 558: if (ival < 0)
559: break;
560:
561: /* Set the saved left-margin. */
1.13 schwarze 562: mt->lmargin = (size_t)ival;
1.1 kristaps 563:
1.57 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:
1.11 schwarze 573: return(0);
574: case (MAN_BODY):
1.13 schwarze 575: p->offset = mt->offset + len;
1.11 schwarze 576: p->rmargin = p->maxrmargin;
577: break;
578: default:
579: break;
580: }
1.1 kristaps 581:
1.11 schwarze 582: return(1);
583: }
1.1 kristaps 584:
585:
1.11 schwarze 586: /* ARGSUSED */
587: static void
588: post_IP(DECL_ARGS)
589: {
1.4 schwarze 590:
1.11 schwarze 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):
1.57 schwarze 598: term_newln(p);
1.11 schwarze 599: p->flags &= ~TERMP_NOLPAD;
600: break;
601: default:
602: break;
603: }
1.1 kristaps 604: }
605:
606:
607: /* ARGSUSED */
608: static int
609: pre_TP(DECL_ARGS)
610: {
1.11 schwarze 611: const struct man_node *nn;
612: size_t len;
1.57 schwarze 613: int savelit, ival;
1.11 schwarze 614:
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;
622: break;
623: case (MAN_BLOCK):
1.18 schwarze 624: print_bvspace(p, n);
1.11 schwarze 625: /* FALLTHROUGH */
626: default:
627: return(1);
628: }
629:
630: len = (size_t)mt->lmargin;
631: ival = -1;
632:
633: /* Calculate offset. */
1.1 kristaps 634:
1.22 schwarze 635: if (NULL != (nn = n->parent->head->child)) {
636: while (nn && MAN_TEXT != nn->type)
637: nn = nn->next;
638: if (nn && nn->next)
1.42 schwarze 639: if ((ival = a2width(p, nn->string)) >= 0)
1.11 schwarze 640: len = (size_t)ival;
1.22 schwarze 641: }
1.8 schwarze 642:
1.11 schwarze 643: switch (n->type) {
644: case (MAN_HEAD):
645: /* Handle zero-length properly. */
646: if (0 == len)
1.42 schwarze 647: len = term_len(p, 1);
1.11 schwarze 648:
1.13 schwarze 649: p->offset = mt->offset;
650: p->rmargin = mt->offset + len;
1.11 schwarze 651:
1.57 schwarze 652: savelit = MANT_LITERAL & mt->fl;
653: mt->fl &= ~MANT_LITERAL;
654:
1.11 schwarze 655: /* Don't print same-line elements. */
1.57 schwarze 656: for (nn = n->child; nn; nn = nn->next)
1.11 schwarze 657: if (nn->line > n->line)
1.19 schwarze 658: print_man_node(p, mt, nn, m);
1.11 schwarze 659:
1.57 schwarze 660: if (savelit)
661: mt->fl |= MANT_LITERAL;
662:
1.11 schwarze 663: if (ival >= 0)
1.13 schwarze 664: mt->lmargin = (size_t)ival;
1.11 schwarze 665:
666: return(0);
667: case (MAN_BODY):
1.13 schwarze 668: p->offset = mt->offset + len;
1.11 schwarze 669: p->rmargin = p->maxrmargin;
670: break;
671: default:
672: break;
673: }
1.1 kristaps 674:
1.11 schwarze 675: return(1);
676: }
1.1 kristaps 677:
678:
1.11 schwarze 679: /* ARGSUSED */
680: static void
681: post_TP(DECL_ARGS)
682: {
1.1 kristaps 683:
1.11 schwarze 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):
1.57 schwarze 692: term_newln(p);
1.11 schwarze 693: p->flags &= ~TERMP_NOLPAD;
694: break;
695: default:
696: break;
697: }
1.1 kristaps 698: }
699:
700:
701: /* ARGSUSED */
702: static int
703: pre_SS(DECL_ARGS)
704: {
705:
1.11 schwarze 706: switch (n->type) {
707: case (MAN_BLOCK):
1.69 ! schwarze 708: mt->fl &= ~MANT_LITERAL;
1.42 schwarze 709: mt->lmargin = term_len(p, INDENT);
710: mt->offset = term_len(p, INDENT);
1.11 schwarze 711: /* If following a prior empty `SS', no vspace. */
712: if (n->prev && MAN_SS == n->prev->tok)
713: if (NULL == n->prev->body->child)
714: break;
715: if (NULL == n->prev)
716: break;
717: term_vspace(p);
718: break;
719: case (MAN_HEAD):
1.21 schwarze 720: term_fontrepl(p, TERMFONT_BOLD);
1.42 schwarze 721: p->offset = term_len(p, HALFINDENT);
1.11 schwarze 722: break;
723: case (MAN_BODY):
1.13 schwarze 724: p->offset = mt->offset;
1.11 schwarze 725: break;
726: default:
727: break;
728: }
729:
1.1 kristaps 730: return(1);
731: }
732:
733:
734: /* ARGSUSED */
735: static void
736: post_SS(DECL_ARGS)
737: {
738:
1.11 schwarze 739: switch (n->type) {
740: case (MAN_HEAD):
741: term_newln(p);
742: break;
743: case (MAN_BODY):
744: term_newln(p);
745: break;
746: default:
747: break;
748: }
1.1 kristaps 749: }
750:
751:
752: /* ARGSUSED */
753: static int
754: pre_SH(DECL_ARGS)
755: {
756:
1.11 schwarze 757: switch (n->type) {
758: case (MAN_BLOCK):
1.69 ! schwarze 759: mt->fl &= ~MANT_LITERAL;
1.42 schwarze 760: mt->lmargin = term_len(p, INDENT);
761: mt->offset = term_len(p, INDENT);
1.11 schwarze 762: /* If following a prior empty `SH', no vspace. */
763: if (n->prev && MAN_SH == n->prev->tok)
764: if (NULL == n->prev->body->child)
765: break;
1.29 schwarze 766: /* If the first macro, no vspae. */
767: if (NULL == n->prev)
768: break;
1.11 schwarze 769: term_vspace(p);
770: break;
771: case (MAN_HEAD):
1.21 schwarze 772: term_fontrepl(p, TERMFONT_BOLD);
1.11 schwarze 773: p->offset = 0;
774: break;
775: case (MAN_BODY):
1.13 schwarze 776: p->offset = mt->offset;
1.11 schwarze 777: break;
778: default:
779: break;
780: }
781:
1.1 kristaps 782: return(1);
783: }
784:
785:
786: /* ARGSUSED */
787: static void
788: post_SH(DECL_ARGS)
789: {
790:
1.11 schwarze 791: switch (n->type) {
792: case (MAN_HEAD):
793: term_newln(p);
794: break;
795: case (MAN_BODY):
796: term_newln(p);
797: break;
798: default:
1.13 schwarze 799: break;
800: }
801: }
802:
803: /* ARGSUSED */
804: static int
805: pre_RS(DECL_ARGS)
806: {
1.69 ! schwarze 807: int ival;
! 808: size_t sz;
1.13 schwarze 809:
810: switch (n->type) {
811: case (MAN_BLOCK):
812: term_newln(p);
813: return(1);
814: case (MAN_HEAD):
815: return(0);
816: default:
817: break;
818: }
819:
1.69 ! schwarze 820: sz = term_len(p, INDENT);
1.13 schwarze 821:
1.69 ! schwarze 822: if (NULL != (n = n->parent->head->child))
! 823: if ((ival = a2width(p, n->string)) >= 0)
! 824: sz = (size_t)ival;
1.13 schwarze 825:
1.69 ! schwarze 826: mt->offset += sz;
1.13 schwarze 827: p->offset = mt->offset;
828:
829: return(1);
830: }
831:
832: /* ARGSUSED */
833: static void
834: post_RS(DECL_ARGS)
835: {
1.69 ! schwarze 836: int ival;
! 837: size_t sz;
1.13 schwarze 838:
839: switch (n->type) {
840: case (MAN_BLOCK):
1.69 ! schwarze 841: return;
1.27 schwarze 842: case (MAN_HEAD):
1.69 ! schwarze 843: return;
1.13 schwarze 844: default:
845: term_newln(p);
1.11 schwarze 846: break;
847: }
1.69 ! schwarze 848:
! 849: sz = term_len(p, INDENT);
! 850:
! 851: if (NULL != (n = n->parent->head->child))
! 852: if ((ival = a2width(p, n->string)) >= 0)
! 853: sz = (size_t)ival;
! 854:
! 855: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
! 856: p->offset = mt->offset;
1.47 schwarze 857: }
858:
1.1 kristaps 859: static void
1.19 schwarze 860: print_man_node(DECL_ARGS)
1.1 kristaps 861: {
1.32 schwarze 862: size_t rm, rmax;
1.21 schwarze 863: int c;
1.1 kristaps 864:
865: switch (n->type) {
866: case(MAN_TEXT):
1.61 schwarze 867: /*
868: * If we have a blank line, output a vertical space.
869: * If we have a space as the first character, break
870: * before printing the line's data.
871: */
1.60 schwarze 872: if ('\0' == *n->string) {
1.1 kristaps 873: term_vspace(p);
1.61 schwarze 874: return;
875: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.60 schwarze 876: term_newln(p);
1.21 schwarze 877:
1.1 kristaps 878: term_word(p, n->string);
1.21 schwarze 879:
1.61 schwarze 880: /*
881: * If we're in a literal context, make sure that words
882: * togehter on the same line stay together. This is a
883: * POST-printing call, so we check the NEXT word. Since
884: * -man doesn't have nested macros, we don't need to be
885: * more specific than this.
886: */
887: if (MANT_LITERAL & mt->fl &&
888: (NULL == n->next ||
889: n->next->line > n->line)) {
1.32 schwarze 890: rm = p->rmargin;
891: rmax = p->maxrmargin;
1.29 schwarze 892: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.11 schwarze 893: p->flags |= TERMP_NOSPACE;
894: term_flushln(p);
1.57 schwarze 895: p->flags &= ~TERMP_NOLPAD;
1.32 schwarze 896: p->rmargin = rm;
897: p->maxrmargin = rmax;
1.11 schwarze 898: }
1.63 schwarze 899:
900: if (MAN_EOS & n->flags)
901: p->flags |= TERMP_SENTENCE;
1.66 schwarze 902: return;
903: case (MAN_EQN):
904: term_word(p, n->eqn->data);
1.61 schwarze 905: return;
1.58 schwarze 906: case (MAN_TBL):
1.61 schwarze 907: /*
908: * Tables are preceded by a newline. Then process a
909: * table line, which will cause line termination,
910: */
1.58 schwarze 911: if (TBL_SPAN_FIRST & n->span->flags)
912: term_newln(p);
913: term_tbl(p, n->span);
1.61 schwarze 914: return;
1.1 kristaps 915: default:
916: break;
917: }
918:
1.61 schwarze 919: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
920: term_fontrepl(p, TERMFONT_NONE);
921:
922: c = 1;
923: if (termacts[n->tok].pre)
924: c = (*termacts[n->tok].pre)(p, mt, n, m);
925:
1.1 kristaps 926: if (c && n->child)
1.21 schwarze 927: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 928:
1.61 schwarze 929: if (termacts[n->tok].post)
930: (*termacts[n->tok].post)(p, mt, n, m);
931: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
932: term_fontrepl(p, TERMFONT_NONE);
1.30 schwarze 933:
934: if (MAN_EOS & n->flags)
935: p->flags |= TERMP_SENTENCE;
1.1 kristaps 936: }
937:
938:
939: static void
1.21 schwarze 940: print_man_nodelist(DECL_ARGS)
1.1 kristaps 941: {
1.11 schwarze 942:
1.19 schwarze 943: print_man_node(p, mt, n, m);
1.1 kristaps 944: if ( ! n->next)
945: return;
1.21 schwarze 946: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 947: }
948:
949:
950: static void
1.41 schwarze 951: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 952: {
1.41 schwarze 953: const struct man_meta *meta;
954:
955: meta = (const struct man_meta *)arg;
1.21 schwarze 956:
957: term_fontrepl(p, TERMFONT_NONE);
1.1 kristaps 958:
1.38 schwarze 959: term_vspace(p);
960: term_vspace(p);
1.1 kristaps 961: term_vspace(p);
962:
963: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.65 schwarze 964: p->rmargin = p->maxrmargin - term_strlen(p, meta->date);
1.1 kristaps 965: p->offset = 0;
1.46 schwarze 966:
967: /* term_strlen() can return zero. */
968: if (p->rmargin == p->maxrmargin)
969: p->rmargin--;
1.1 kristaps 970:
971: if (meta->source)
972: term_word(p, meta->source);
973: if (meta->source)
974: term_word(p, "");
975: term_flushln(p);
976:
977: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
978: p->offset = p->rmargin;
979: p->rmargin = p->maxrmargin;
980: p->flags &= ~TERMP_NOBREAK;
981:
1.65 schwarze 982: term_word(p, meta->date);
1.1 kristaps 983: term_flushln(p);
984: }
985:
986:
987: static void
1.41 schwarze 988: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 989: {
1.20 schwarze 990: char buf[BUFSIZ], title[BUFSIZ];
1.25 schwarze 991: size_t buflen, titlen;
1.41 schwarze 992: const struct man_meta *m;
993:
994: m = (const struct man_meta *)arg;
1.1 kristaps 995:
1.29 schwarze 996: /*
997: * Note that old groff would spit out some spaces before the
998: * header. We discontinue this strange behaviour, but at one
999: * point we did so here.
1000: */
1001:
1.1 kristaps 1002: p->rmargin = p->maxrmargin;
1.27 schwarze 1003:
1.1 kristaps 1004: p->offset = 0;
1.20 schwarze 1005: buf[0] = title[0] = '\0';
1.1 kristaps 1006:
1.20 schwarze 1007: if (m->vol)
1008: strlcpy(buf, m->vol, BUFSIZ);
1.42 schwarze 1009: buflen = term_strlen(p, buf);
1.1 kristaps 1010:
1.31 schwarze 1011: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.42 schwarze 1012: titlen = term_strlen(p, title);
1.1 kristaps 1013:
1014: p->offset = 0;
1.25 schwarze 1015: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.42 schwarze 1016: (p->maxrmargin -
1017: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.25 schwarze 1018: p->maxrmargin - buflen;
1.1 kristaps 1019: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1020:
1021: term_word(p, title);
1022: term_flushln(p);
1023:
1024: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1025: p->offset = p->rmargin;
1.25 schwarze 1026: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1027: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1028:
1029: term_word(p, buf);
1030: term_flushln(p);
1031:
1032: p->flags &= ~TERMP_NOBREAK;
1.25 schwarze 1033: if (p->rmargin + titlen <= p->maxrmargin) {
1034: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1035: p->offset = p->rmargin;
1036: p->rmargin = p->maxrmargin;
1037: term_word(p, title);
1038: term_flushln(p);
1039: }
1.1 kristaps 1040:
1041: p->rmargin = p->maxrmargin;
1042: p->offset = 0;
1043: p->flags &= ~TERMP_NOSPACE;
1.29 schwarze 1044:
1045: /*
1046: * Groff likes to have some leading spaces before content. Well
1047: * that's fine by me.
1048: */
1049:
1050: term_vspace(p);
1051: term_vspace(p);
1052: term_vspace(p);
1.1 kristaps 1053: }
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