Annotation of mandoc/man_term.c, Revision 1.130
1.130 ! schwarze 1: /* $Id: man_term.c,v 1.129 2012/06/02 20:16:23 schwarze Exp $ */
1.1 kristaps 2: /*
1.128 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.130 ! schwarze 4: * Copyright (c) 2010, 2011, 2012 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:
1.116 schwarze 36: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.18 kristaps 37:
1.44 kristaps 38: /* FIXME: have PD set the default vspace width. */
39:
1.24 kristaps 40: struct mtermp {
41: int fl;
1.19 kristaps 42: #define MANT_LITERAL (1 << 0)
1.116 schwarze 43: size_t lmargin[MAXMARGINS]; /* margins (incl. visible page) */
44: int lmargincur; /* index of current margin */
45: int lmarginsz; /* actual number of nested margins */
46: size_t offset; /* default offset to visible page */
1.24 kristaps 47: };
1.19 kristaps 48:
1.1 kristaps 49: #define DECL_ARGS struct termp *p, \
1.24 kristaps 50: struct mtermp *mt, \
1.1 kristaps 51: const struct man_node *n, \
52: const struct man_meta *m
53:
54: struct termact {
55: int (*pre)(DECL_ARGS);
56: void (*post)(DECL_ARGS);
1.56 kristaps 57: int flags;
58: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 59: };
60:
1.77 kristaps 61: static int a2width(const struct termp *, const char *);
62: static size_t a2height(const struct termp *, const char *);
1.39 kristaps 63:
1.52 kristaps 64: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 65: static void print_man_node(DECL_ARGS);
1.74 kristaps 66: static void print_man_head(struct termp *, const void *);
1.73 kristaps 67: static void print_man_foot(struct termp *, const void *);
1.39 kristaps 68: static void print_bvspace(struct termp *,
69: const struct man_node *);
70:
1.1 kristaps 71: static int pre_B(DECL_ARGS);
1.19 kristaps 72: static int pre_HP(DECL_ARGS);
1.1 kristaps 73: static int pre_I(DECL_ARGS);
1.4 kristaps 74: static int pre_IP(DECL_ARGS);
1.127 kristaps 75: static int pre_OP(DECL_ARGS);
1.1 kristaps 76: static int pre_PP(DECL_ARGS);
1.26 kristaps 77: static int pre_RS(DECL_ARGS);
1.1 kristaps 78: static int pre_SH(DECL_ARGS);
79: static int pre_SS(DECL_ARGS);
80: static int pre_TP(DECL_ARGS);
1.127 kristaps 81: static int pre_alternate(DECL_ARGS);
82: static int pre_ft(DECL_ARGS);
1.29 kristaps 83: static int pre_ign(DECL_ARGS);
1.83 kristaps 84: static int pre_in(DECL_ARGS);
1.84 kristaps 85: static int pre_literal(DECL_ARGS);
1.19 kristaps 86: static int pre_sp(DECL_ARGS);
1.1 kristaps 87:
1.22 kristaps 88: static void post_IP(DECL_ARGS);
1.20 kristaps 89: static void post_HP(DECL_ARGS);
1.26 kristaps 90: static void post_RS(DECL_ARGS);
1.1 kristaps 91: static void post_SH(DECL_ARGS);
92: static void post_SS(DECL_ARGS);
1.21 kristaps 93: static void post_TP(DECL_ARGS);
1.1 kristaps 94:
1.32 kristaps 95: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 96: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 97: { NULL, NULL, 0 }, /* TH */
98: { pre_SH, post_SH, 0 }, /* SH */
99: { pre_SS, post_SS, 0 }, /* SS */
100: { pre_TP, post_TP, 0 }, /* TP */
101: { pre_PP, NULL, 0 }, /* LP */
102: { pre_PP, NULL, 0 }, /* PP */
103: { pre_PP, NULL, 0 }, /* P */
104: { pre_IP, post_IP, 0 }, /* IP */
105: { pre_HP, post_HP, 0 }, /* HP */
106: { NULL, NULL, 0 }, /* SM */
107: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 108: { pre_alternate, NULL, 0 }, /* BI */
109: { pre_alternate, NULL, 0 }, /* IB */
110: { pre_alternate, NULL, 0 }, /* BR */
111: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 112: { NULL, NULL, 0 }, /* R */
113: { pre_B, NULL, 0 }, /* B */
114: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 115: { pre_alternate, NULL, 0 }, /* IR */
116: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 117: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 118: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 119: { pre_literal, NULL, 0 }, /* nf */
120: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 121: { NULL, NULL, 0 }, /* RE */
122: { pre_RS, post_RS, 0 }, /* RS */
123: { pre_ign, NULL, 0 }, /* DT */
124: { pre_ign, NULL, 0 }, /* UC */
125: { pre_ign, NULL, 0 }, /* PD */
1.70 joerg 126: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 127: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 128: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.127 kristaps 129: { pre_OP, NULL, 0 }, /* OP */
1.129 schwarze 130: { pre_literal, NULL, 0 }, /* EX */
131: { pre_literal, NULL, 0 }, /* EE */
1.1 kristaps 132: };
133:
134:
135:
1.31 kristaps 136: void
1.36 kristaps 137: terminal_man(void *arg, const struct man *man)
1.1 kristaps 138: {
1.36 kristaps 139: struct termp *p;
140: const struct man_node *n;
141: const struct man_meta *m;
142: struct mtermp mt;
143:
144: p = (struct termp *)arg;
145:
1.122 schwarze 146: if (0 == p->defindent)
147: p->defindent = 7;
148:
1.58 kristaps 149: p->overstep = 0;
1.65 joerg 150: p->maxrmargin = p->defrmargin;
1.77 kristaps 151: p->tabwidth = term_len(p, 5);
1.73 kristaps 152:
1.36 kristaps 153: if (NULL == p->symtab)
1.109 kristaps 154: p->symtab = mchars_alloc();
1.36 kristaps 155:
156: n = man_node(man);
157: m = man_meta(man);
1.1 kristaps 158:
1.75 schwarze 159: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 160: p->flags |= TERMP_NOSPACE;
1.19 kristaps 161:
1.116 schwarze 162: memset(&mt, 0, sizeof(struct mtermp));
163:
1.122 schwarze 164: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
165: mt.offset = term_len(p, p->defindent);
1.24 kristaps 166:
1.36 kristaps 167: if (n->child)
1.52 kristaps 168: print_man_nodelist(p, &mt, n->child, m);
1.73 kristaps 169:
170: term_end(p);
1.1 kristaps 171: }
172:
173:
1.77 kristaps 174: static size_t
175: a2height(const struct termp *p, const char *cp)
1.18 kristaps 176: {
1.40 kristaps 177: struct roffsu su;
1.18 kristaps 178:
1.77 kristaps 179: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 kristaps 180: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 181:
1.77 kristaps 182: return(term_vspan(p, &su));
1.18 kristaps 183: }
184:
185:
186: static int
1.77 kristaps 187: a2width(const struct termp *p, const char *cp)
1.38 kristaps 188: {
1.40 kristaps 189: struct roffsu su;
1.38 kristaps 190:
1.77 kristaps 191: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 192: return(-1);
1.40 kristaps 193:
1.77 kristaps 194: return((int)term_hspan(p, &su));
1.38 kristaps 195: }
196:
1.111 kristaps 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: */
1.39 kristaps 205: static void
206: print_bvspace(struct termp *p, const struct man_node *n)
1.18 kristaps 207: {
1.111 kristaps 208:
1.39 kristaps 209: term_newln(p);
1.101 schwarze 210:
1.111 kristaps 211: if (n->body && n->body->child)
212: if (MAN_TBL == n->body->child->type)
213: return;
214:
215: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
216: if (NULL == n->prev)
217: return;
1.18 kristaps 218:
1.39 kristaps 219: term_vspace(p);
1.18 kristaps 220: }
221:
1.3 kristaps 222: /* ARGSUSED */
1.1 kristaps 223: static int
1.29 kristaps 224: pre_ign(DECL_ARGS)
225: {
226:
227: return(0);
228: }
229:
230:
231: /* ARGSUSED */
232: static int
1.1 kristaps 233: pre_I(DECL_ARGS)
234: {
235:
1.52 kristaps 236: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 237: return(1);
238: }
239:
240:
241: /* ARGSUSED */
1.3 kristaps 242: static int
1.84 kristaps 243: pre_literal(DECL_ARGS)
1.19 kristaps 244: {
245:
1.81 kristaps 246: term_newln(p);
1.88 kristaps 247:
1.129 schwarze 248: if (MAN_nf == n->tok || MAN_EX == n->tok)
1.84 kristaps 249: mt->fl |= MANT_LITERAL;
1.88 kristaps 250: else
1.84 kristaps 251: mt->fl &= ~MANT_LITERAL;
252:
1.117 schwarze 253: /*
254: * Unlike .IP and .TP, .HP does not have a HEAD.
255: * So in case a second call to term_flushln() is needed,
256: * indentation has to be set up explicitly.
257: */
258: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.121 schwarze 259: p->offset = p->rmargin;
1.117 schwarze 260: p->rmargin = p->maxrmargin;
261: p->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);
262: p->flags |= TERMP_NOSPACE;
263: }
264:
1.99 schwarze 265: return(0);
1.19 kristaps 266: }
267:
268: /* ARGSUSED */
269: static int
1.88 kristaps 270: pre_alternate(DECL_ARGS)
1.3 kristaps 271: {
1.88 kristaps 272: enum termfont font[2];
273: const struct man_node *nn;
274: int savelit, i;
1.3 kristaps 275:
1.88 kristaps 276: switch (n->tok) {
277: case (MAN_RB):
278: font[0] = TERMFONT_NONE;
279: font[1] = TERMFONT_BOLD;
280: break;
281: case (MAN_RI):
282: font[0] = TERMFONT_NONE;
283: font[1] = TERMFONT_UNDER;
284: break;
285: case (MAN_BR):
286: font[0] = TERMFONT_BOLD;
287: font[1] = TERMFONT_NONE;
288: break;
289: case (MAN_BI):
290: font[0] = TERMFONT_BOLD;
291: font[1] = TERMFONT_UNDER;
292: break;
293: case (MAN_IR):
294: font[0] = TERMFONT_UNDER;
295: font[1] = TERMFONT_NONE;
296: break;
297: case (MAN_IB):
298: font[0] = TERMFONT_UNDER;
299: font[1] = TERMFONT_BOLD;
300: break;
301: default:
302: abort();
303: }
1.35 kristaps 304:
1.88 kristaps 305: savelit = MANT_LITERAL & mt->fl;
306: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 307:
1.88 kristaps 308: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
309: term_fontrepl(p, font[i]);
310: if (savelit && NULL == nn->next)
311: mt->fl |= MANT_LITERAL;
1.45 kristaps 312: print_man_node(p, mt, nn, m);
1.88 kristaps 313: if (nn->next)
1.4 kristaps 314: p->flags |= TERMP_NOSPACE;
1.3 kristaps 315: }
316:
317: return(0);
318: }
319:
320: /* ARGSUSED */
1.1 kristaps 321: static int
322: pre_B(DECL_ARGS)
323: {
324:
1.52 kristaps 325: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 326: return(1);
1.127 kristaps 327: }
328:
329: /* ARGSUSED */
330: static int
331: pre_OP(DECL_ARGS)
332: {
333:
334: term_word(p, "[");
335: p->flags |= TERMP_NOSPACE;
336:
337: if (NULL != (n = n->child)) {
338: term_fontrepl(p, TERMFONT_BOLD);
339: term_word(p, n->string);
340: }
341: if (NULL != n && NULL != n->next) {
342: term_fontrepl(p, TERMFONT_UNDER);
343: term_word(p, n->next->string);
344: }
345:
346: term_fontrepl(p, TERMFONT_NONE);
347: p->flags |= TERMP_NOSPACE;
348: term_word(p, "]");
349: return(0);
1.89 kristaps 350: }
351:
352: /* ARGSUSED */
353: static int
354: pre_ft(DECL_ARGS)
355: {
356: const char *cp;
357:
358: if (NULL == n->child) {
359: term_fontlast(p);
360: return(0);
361: }
362:
363: cp = n->child->string;
364: switch (*cp) {
365: case ('4'):
366: /* FALLTHROUGH */
367: case ('3'):
368: /* FALLTHROUGH */
369: case ('B'):
370: term_fontrepl(p, TERMFONT_BOLD);
371: break;
372: case ('2'):
373: /* FALLTHROUGH */
374: case ('I'):
375: term_fontrepl(p, TERMFONT_UNDER);
376: break;
377: case ('P'):
378: term_fontlast(p);
379: break;
380: case ('1'):
381: /* FALLTHROUGH */
382: case ('C'):
383: /* FALLTHROUGH */
384: case ('R'):
385: term_fontrepl(p, TERMFONT_NONE);
386: break;
387: default:
388: break;
389: }
390: return(0);
1.83 kristaps 391: }
392:
393: /* ARGSUSED */
394: static int
395: pre_in(DECL_ARGS)
396: {
397: int len, less;
398: size_t v;
399: const char *cp;
400:
401: term_newln(p);
402:
403: if (NULL == n->child) {
404: p->offset = mt->offset;
405: return(0);
406: }
407:
408: cp = n->child->string;
409: less = 0;
410:
411: if ('-' == *cp)
412: less = -1;
413: else if ('+' == *cp)
414: less = 1;
415: else
416: cp--;
417:
418: if ((len = a2width(p, ++cp)) < 0)
419: return(0);
420:
421: v = (size_t)len;
422:
423: if (less < 0)
424: p->offset -= p->offset > v ? v : p->offset;
425: else if (less > 0)
426: p->offset += v;
427: else
428: p->offset = v;
1.95 kristaps 429:
430: /* Don't let this creep beyond the right margin. */
431:
432: if (p->offset > p->rmargin)
433: p->offset = p->rmargin;
1.83 kristaps 434:
435: return(0);
1.1 kristaps 436: }
437:
438:
1.3 kristaps 439: /* ARGSUSED */
1.1 kristaps 440: static int
1.19 kristaps 441: pre_sp(DECL_ARGS)
442: {
1.77 kristaps 443: size_t i, len;
1.112 kristaps 444:
445: if ((NULL == n->prev && n->parent)) {
446: if (MAN_SS == n->parent->tok)
447: return(0);
448: if (MAN_SH == n->parent->tok)
449: return(0);
450: }
1.19 kristaps 451:
1.82 kristaps 452: switch (n->tok) {
453: case (MAN_br):
454: len = 0;
455: break;
456: default:
457: len = n->child ? a2height(p, n->child->string) : 1;
458: break;
459: }
1.38 kristaps 460:
1.19 kristaps 461: if (0 == len)
462: term_newln(p);
1.82 kristaps 463: for (i = 0; i < len; i++)
1.19 kristaps 464: term_vspace(p);
465:
1.15 kristaps 466: return(0);
467: }
468:
469:
470: /* ARGSUSED */
471: static int
1.19 kristaps 472: pre_HP(DECL_ARGS)
473: {
1.117 schwarze 474: size_t len, one;
1.24 kristaps 475: int ival;
476: const struct man_node *nn;
1.19 kristaps 477:
1.20 kristaps 478: switch (n->type) {
479: case (MAN_BLOCK):
1.39 kristaps 480: print_bvspace(p, n);
1.24 kristaps 481: return(1);
1.20 kristaps 482: case (MAN_BODY):
483: break;
484: default:
485: return(0);
486: }
487:
1.130 ! schwarze 488: if ( ! (MANT_LITERAL & mt->fl)) {
! 489: p->flags |= TERMP_NOBREAK;
! 490: p->flags |= TERMP_TWOSPACE;
! 491: }
! 492:
1.116 schwarze 493: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 494: ival = -1;
495:
496: /* Calculate offset. */
497:
1.39 kristaps 498: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 499: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 500: len = (size_t)ival;
501:
1.117 schwarze 502: one = term_len(p, 1);
1.121 schwarze 503: if (len < one)
1.117 schwarze 504: len = one;
1.24 kristaps 505:
1.26 kristaps 506: p->offset = mt->offset;
507: p->rmargin = mt->offset + len;
1.24 kristaps 508:
509: if (ival >= 0)
1.116 schwarze 510: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 511:
1.19 kristaps 512: return(1);
513: }
514:
515:
516: /* ARGSUSED */
1.20 kristaps 517: static void
518: post_HP(DECL_ARGS)
519: {
520:
521: switch (n->type) {
522: case (MAN_BODY):
523: term_flushln(p);
524: p->flags &= ~TERMP_NOBREAK;
525: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 526: p->offset = mt->offset;
1.20 kristaps 527: p->rmargin = p->maxrmargin;
528: break;
529: default:
530: break;
531: }
532: }
533:
534:
535: /* ARGSUSED */
1.19 kristaps 536: static int
1.1 kristaps 537: pre_PP(DECL_ARGS)
538: {
539:
1.19 kristaps 540: switch (n->type) {
541: case (MAN_BLOCK):
1.122 schwarze 542: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.39 kristaps 543: print_bvspace(p, n);
1.19 kristaps 544: break;
545: default:
1.26 kristaps 546: p->offset = mt->offset;
1.19 kristaps 547: break;
548: }
549:
1.87 kristaps 550: return(MAN_HEAD != n->type);
1.1 kristaps 551: }
552:
553:
1.3 kristaps 554: /* ARGSUSED */
1.1 kristaps 555: static int
1.4 kristaps 556: pre_IP(DECL_ARGS)
557: {
1.22 kristaps 558: const struct man_node *nn;
559: size_t len;
1.94 schwarze 560: int savelit, ival;
1.18 kristaps 561:
1.22 kristaps 562: switch (n->type) {
563: case (MAN_BODY):
564: p->flags |= TERMP_NOSPACE;
565: break;
566: case (MAN_HEAD):
567: p->flags |= TERMP_NOBREAK;
568: break;
1.23 kristaps 569: case (MAN_BLOCK):
1.39 kristaps 570: print_bvspace(p, n);
1.23 kristaps 571: /* FALLTHROUGH */
1.22 kristaps 572: default:
573: return(1);
574: }
1.18 kristaps 575:
1.116 schwarze 576: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 577: ival = -1;
1.4 kristaps 578:
1.94 schwarze 579: /* Calculate the offset from the optional second argument. */
1.22 kristaps 580: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 581: if (NULL != (nn = nn->next))
1.77 kristaps 582: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 583: len = (size_t)ival;
1.4 kristaps 584:
1.22 kristaps 585: switch (n->type) {
586: case (MAN_HEAD):
1.23 kristaps 587: /* Handle zero-width lengths. */
588: if (0 == len)
1.77 kristaps 589: len = term_len(p, 1);
1.23 kristaps 590:
1.26 kristaps 591: p->offset = mt->offset;
592: p->rmargin = mt->offset + len;
1.22 kristaps 593: if (ival < 0)
594: break;
1.18 kristaps 595:
1.24 kristaps 596: /* Set the saved left-margin. */
1.116 schwarze 597: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 598:
1.94 schwarze 599: savelit = MANT_LITERAL & mt->fl;
600: mt->fl &= ~MANT_LITERAL;
601:
602: if (n->child)
603: print_man_node(p, mt, n->child, m);
604:
605: if (savelit)
606: mt->fl |= MANT_LITERAL;
607:
1.22 kristaps 608: return(0);
1.23 kristaps 609: case (MAN_BODY):
1.26 kristaps 610: p->offset = mt->offset + len;
1.23 kristaps 611: p->rmargin = p->maxrmargin;
612: break;
1.22 kristaps 613: default:
614: break;
1.18 kristaps 615: }
616:
1.22 kristaps 617: return(1);
618: }
1.18 kristaps 619:
620:
1.22 kristaps 621: /* ARGSUSED */
622: static void
623: post_IP(DECL_ARGS)
624: {
1.4 kristaps 625:
1.22 kristaps 626: switch (n->type) {
627: case (MAN_HEAD):
628: term_flushln(p);
629: p->flags &= ~TERMP_NOBREAK;
630: p->rmargin = p->maxrmargin;
631: break;
632: case (MAN_BODY):
1.94 schwarze 633: term_newln(p);
1.22 kristaps 634: break;
635: default:
636: break;
637: }
1.4 kristaps 638: }
639:
640:
641: /* ARGSUSED */
642: static int
1.1 kristaps 643: pre_TP(DECL_ARGS)
644: {
1.23 kristaps 645: const struct man_node *nn;
646: size_t len;
1.94 schwarze 647: int savelit, ival;
1.1 kristaps 648:
1.21 kristaps 649: switch (n->type) {
650: case (MAN_HEAD):
651: p->flags |= TERMP_NOBREAK;
652: break;
653: case (MAN_BODY):
654: p->flags |= TERMP_NOSPACE;
1.23 kristaps 655: break;
656: case (MAN_BLOCK):
1.39 kristaps 657: print_bvspace(p, n);
1.23 kristaps 658: /* FALLTHROUGH */
659: default:
660: return(1);
661: }
662:
1.116 schwarze 663: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 664: ival = -1;
665:
666: /* Calculate offset. */
667:
1.116 schwarze 668: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 669: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 670: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 671: len = (size_t)ival;
672:
673: switch (n->type) {
674: case (MAN_HEAD):
675: /* Handle zero-length properly. */
676: if (0 == len)
1.77 kristaps 677: len = term_len(p, 1);
1.23 kristaps 678:
1.26 kristaps 679: p->offset = mt->offset;
680: p->rmargin = mt->offset + len;
1.23 kristaps 681:
1.94 schwarze 682: savelit = MANT_LITERAL & mt->fl;
683: mt->fl &= ~MANT_LITERAL;
684:
1.23 kristaps 685: /* Don't print same-line elements. */
1.94 schwarze 686: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 687: if (nn->line > n->line)
1.45 kristaps 688: print_man_node(p, mt, nn, m);
1.24 kristaps 689:
1.94 schwarze 690: if (savelit)
691: mt->fl |= MANT_LITERAL;
1.24 kristaps 692: if (ival >= 0)
1.116 schwarze 693: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 694:
1.23 kristaps 695: return(0);
696: case (MAN_BODY):
1.26 kristaps 697: p->offset = mt->offset + len;
1.23 kristaps 698: p->rmargin = p->maxrmargin;
1.130 ! schwarze 699: p->flags &= ~TERMP_NOBREAK;
! 700: p->flags &= ~TERMP_TWOSPACE;
1.21 kristaps 701: break;
702: default:
703: break;
704: }
1.16 kristaps 705:
1.21 kristaps 706: return(1);
707: }
1.1 kristaps 708:
709:
1.21 kristaps 710: /* ARGSUSED */
711: static void
712: post_TP(DECL_ARGS)
713: {
1.1 kristaps 714:
1.21 kristaps 715: switch (n->type) {
716: case (MAN_HEAD):
717: term_flushln(p);
718: break;
719: case (MAN_BODY):
1.94 schwarze 720: term_newln(p);
1.21 kristaps 721: break;
722: default:
723: break;
724: }
1.1 kristaps 725: }
726:
727:
1.3 kristaps 728: /* ARGSUSED */
1.1 kristaps 729: static int
730: pre_SS(DECL_ARGS)
731: {
732:
1.19 kristaps 733: switch (n->type) {
734: case (MAN_BLOCK):
1.113 kristaps 735: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 736: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
737: mt->offset = term_len(p, p->defindent);
1.24 kristaps 738: /* If following a prior empty `SS', no vspace. */
739: if (n->prev && MAN_SS == n->prev->tok)
740: if (NULL == n->prev->body->child)
741: break;
742: if (NULL == n->prev)
743: break;
744: term_vspace(p);
1.19 kristaps 745: break;
746: case (MAN_HEAD):
1.52 kristaps 747: term_fontrepl(p, TERMFONT_BOLD);
1.122 schwarze 748: p->offset = term_len(p, p->defindent/2);
1.19 kristaps 749: break;
1.24 kristaps 750: case (MAN_BODY):
1.26 kristaps 751: p->offset = mt->offset;
1.24 kristaps 752: break;
1.19 kristaps 753: default:
754: break;
755: }
756:
1.1 kristaps 757: return(1);
758: }
759:
760:
1.3 kristaps 761: /* ARGSUSED */
1.1 kristaps 762: static void
763: post_SS(DECL_ARGS)
764: {
765:
1.19 kristaps 766: switch (n->type) {
767: case (MAN_HEAD):
768: term_newln(p);
769: break;
1.24 kristaps 770: case (MAN_BODY):
771: term_newln(p);
772: break;
1.19 kristaps 773: default:
774: break;
775: }
1.1 kristaps 776: }
777:
778:
1.3 kristaps 779: /* ARGSUSED */
1.1 kristaps 780: static int
781: pre_SH(DECL_ARGS)
782: {
1.22 kristaps 783:
1.19 kristaps 784: switch (n->type) {
785: case (MAN_BLOCK):
1.113 kristaps 786: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 787: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
788: mt->offset = term_len(p, p->defindent);
1.22 kristaps 789: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 790: if (n->prev && MAN_SH == n->prev->tok)
791: if (NULL == n->prev->body->child)
792: break;
1.61 kristaps 793: /* If the first macro, no vspae. */
794: if (NULL == n->prev)
795: break;
1.19 kristaps 796: term_vspace(p);
797: break;
798: case (MAN_HEAD):
1.52 kristaps 799: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 800: p->offset = 0;
801: break;
802: case (MAN_BODY):
1.26 kristaps 803: p->offset = mt->offset;
1.19 kristaps 804: break;
805: default:
806: break;
807: }
1.1 kristaps 808:
809: return(1);
810: }
811:
812:
1.3 kristaps 813: /* ARGSUSED */
1.1 kristaps 814: static void
815: post_SH(DECL_ARGS)
816: {
817:
1.19 kristaps 818: switch (n->type) {
819: case (MAN_HEAD):
820: term_newln(p);
821: break;
822: case (MAN_BODY):
823: term_newln(p);
824: break;
825: default:
826: break;
827: }
1.1 kristaps 828: }
829:
1.26 kristaps 830: /* ARGSUSED */
831: static int
832: pre_RS(DECL_ARGS)
833: {
1.110 kristaps 834: int ival;
835: size_t sz;
1.26 kristaps 836:
837: switch (n->type) {
838: case (MAN_BLOCK):
839: term_newln(p);
840: return(1);
841: case (MAN_HEAD):
842: return(0);
843: default:
844: break;
845: }
846:
1.122 schwarze 847: sz = term_len(p, p->defindent);
1.26 kristaps 848:
1.110 kristaps 849: if (NULL != (n = n->parent->head->child))
850: if ((ival = a2width(p, n->string)) >= 0)
851: sz = (size_t)ival;
1.26 kristaps 852:
1.110 kristaps 853: mt->offset += sz;
1.119 schwarze 854: p->rmargin = p->maxrmargin;
855: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.26 kristaps 856:
1.116 schwarze 857: if (++mt->lmarginsz < MAXMARGINS)
858: mt->lmargincur = mt->lmarginsz;
859:
860: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 861: return(1);
862: }
863:
864: /* ARGSUSED */
865: static void
866: post_RS(DECL_ARGS)
867: {
1.110 kristaps 868: int ival;
869: size_t sz;
1.26 kristaps 870:
871: switch (n->type) {
872: case (MAN_BLOCK):
1.110 kristaps 873: return;
1.59 kristaps 874: case (MAN_HEAD):
1.110 kristaps 875: return;
1.26 kristaps 876: default:
877: term_newln(p);
878: break;
879: }
1.110 kristaps 880:
1.122 schwarze 881: sz = term_len(p, p->defindent);
1.110 kristaps 882:
883: if (NULL != (n = n->parent->head->child))
884: if ((ival = a2width(p, n->string)) >= 0)
885: sz = (size_t)ival;
886:
887: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
888: p->offset = mt->offset;
1.116 schwarze 889:
890: if (--mt->lmarginsz < MAXMARGINS)
891: mt->lmargincur = mt->lmarginsz;
1.26 kristaps 892: }
893:
1.1 kristaps 894: static void
1.45 kristaps 895: print_man_node(DECL_ARGS)
1.1 kristaps 896: {
1.65 joerg 897: size_t rm, rmax;
1.54 kristaps 898: int c;
1.1 kristaps 899:
900: switch (n->type) {
901: case(MAN_TEXT):
1.97 kristaps 902: /*
903: * If we have a blank line, output a vertical space.
904: * If we have a space as the first character, break
905: * before printing the line's data.
906: */
1.96 kristaps 907: if ('\0' == *n->string) {
1.4 kristaps 908: term_vspace(p);
1.98 schwarze 909: return;
1.97 kristaps 910: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 911: term_newln(p);
1.54 kristaps 912:
1.4 kristaps 913: term_word(p, n->string);
1.130 ! schwarze 914: goto out;
1.52 kristaps 915:
1.102 kristaps 916: case (MAN_EQN):
1.115 kristaps 917: term_eqn(p, n->eqn);
1.97 kristaps 918: return;
1.91 kristaps 919: case (MAN_TBL):
1.97 kristaps 920: /*
921: * Tables are preceded by a newline. Then process a
922: * table line, which will cause line termination,
923: */
1.93 kristaps 924: if (TBL_SPAN_FIRST & n->span->flags)
925: term_newln(p);
1.92 kristaps 926: term_tbl(p, n->span);
1.97 kristaps 927: return;
1.1 kristaps 928: default:
929: break;
930: }
931:
1.97 kristaps 932: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
933: term_fontrepl(p, TERMFONT_NONE);
934:
935: c = 1;
936: if (termacts[n->tok].pre)
937: c = (*termacts[n->tok].pre)(p, mt, n, m);
938:
1.1 kristaps 939: if (c && n->child)
1.52 kristaps 940: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 941:
1.97 kristaps 942: if (termacts[n->tok].post)
943: (*termacts[n->tok].post)(p, mt, n, m);
944: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
945: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 946:
1.130 ! schwarze 947: out:
! 948: /*
! 949: * If we're in a literal context, make sure that words
! 950: * together on the same line stay together. This is a
! 951: * POST-printing call, so we check the NEXT word. Since
! 952: * -man doesn't have nested macros, we don't need to be
! 953: * more specific than this.
! 954: */
! 955: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
! 956: NULL != n->next && n->next->line > n->line) {
! 957: rm = p->rmargin;
! 958: rmax = p->maxrmargin;
! 959: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
! 960: p->flags |= TERMP_NOSPACE;
! 961: if (NULL != n->string && '\0' != *n->string)
! 962: term_flushln(p);
! 963: else
! 964: term_newln(p);
! 965: if (rm < rmax && n->parent->tok == MAN_HP) {
! 966: p->offset = rm;
! 967: p->rmargin = rmax;
! 968: } else
! 969: p->rmargin = rm;
! 970: p->maxrmargin = rmax;
! 971: }
1.63 kristaps 972: if (MAN_EOS & n->flags)
973: p->flags |= TERMP_SENTENCE;
1.1 kristaps 974: }
975:
976:
977: static void
1.52 kristaps 978: print_man_nodelist(DECL_ARGS)
1.1 kristaps 979: {
1.19 kristaps 980:
1.45 kristaps 981: print_man_node(p, mt, n, m);
1.1 kristaps 982: if ( ! n->next)
983: return;
1.52 kristaps 984: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 985: }
986:
987:
1.31 kristaps 988: static void
1.73 kristaps 989: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 990: {
1.123 schwarze 991: char title[BUFSIZ];
992: size_t datelen;
1.73 kristaps 993: const struct man_meta *meta;
994:
995: meta = (const struct man_meta *)arg;
1.125 schwarze 996: assert(meta->title);
997: assert(meta->msec);
998: assert(meta->date);
1.1 kristaps 999:
1.52 kristaps 1000: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1001:
1.69 joerg 1002: term_vspace(p);
1.126 schwarze 1003:
1004: /*
1005: * Temporary, undocumented option to imitate mdoc(7) output.
1006: * In the bottom right corner, use the source instead of
1007: * the title.
1008: */
1009:
1010: if ( ! p->mdocstyle) {
1011: term_vspace(p);
1012: term_vspace(p);
1013: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1014: } else if (meta->source) {
1015: strlcpy(title, meta->source, BUFSIZ);
1016: } else {
1017: title[0] = '\0';
1018: }
1.125 schwarze 1019: datelen = term_strlen(p, meta->date);
1.1 kristaps 1020:
1.126 schwarze 1021: /* Bottom left corner: manual source. */
1022:
1.1 kristaps 1023: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1024: p->offset = 0;
1.123 schwarze 1025: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1026:
1027: if (meta->source)
1028: term_word(p, meta->source);
1029: term_flushln(p);
1030:
1.126 schwarze 1031: /* At the bottom in the middle: manual date. */
1032:
1.117 schwarze 1033: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1034: p->offset = p->rmargin;
1.123 schwarze 1035: p->rmargin = p->maxrmargin - term_strlen(p, title);
1036: if (p->offset + datelen >= p->rmargin)
1037: p->rmargin = p->offset + datelen;
1038:
1.125 schwarze 1039: term_word(p, meta->date);
1.123 schwarze 1040: term_flushln(p);
1041:
1.126 schwarze 1042: /* Bottom right corner: manual title and section. */
1043:
1.123 schwarze 1044: p->flags &= ~TERMP_NOBREAK;
1045: p->flags |= TERMP_NOSPACE;
1046: p->offset = p->rmargin;
1.1 kristaps 1047: p->rmargin = p->maxrmargin;
1048:
1.123 schwarze 1049: term_word(p, title);
1.1 kristaps 1050: term_flushln(p);
1051: }
1052:
1053:
1.31 kristaps 1054: static void
1.73 kristaps 1055: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1056: {
1.46 kristaps 1057: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1058: size_t buflen, titlen;
1.73 kristaps 1059: const struct man_meta *m;
1060:
1061: m = (const struct man_meta *)arg;
1.125 schwarze 1062: assert(m->title);
1063: assert(m->msec);
1.1 kristaps 1064:
1.46 kristaps 1065: if (m->vol)
1066: strlcpy(buf, m->vol, BUFSIZ);
1.126 schwarze 1067: else
1068: buf[0] = '\0';
1.77 kristaps 1069: buflen = term_strlen(p, buf);
1.1 kristaps 1070:
1.126 schwarze 1071: /* Top left corner: manual title and section. */
1072:
1.125 schwarze 1073: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.77 kristaps 1074: titlen = term_strlen(p, title);
1.1 kristaps 1075:
1.118 schwarze 1076: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1077: p->offset = 0;
1.57 kristaps 1078: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1079: (p->maxrmargin -
1080: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1081: p->maxrmargin - buflen;
1.1 kristaps 1082:
1083: term_word(p, title);
1084: term_flushln(p);
1085:
1.126 schwarze 1086: /* At the top in the middle: manual volume. */
1087:
1.117 schwarze 1088: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1089: p->offset = p->rmargin;
1.57 kristaps 1090: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1091: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1092:
1093: term_word(p, buf);
1094: term_flushln(p);
1095:
1.126 schwarze 1096: /* Top right corner: title and section, again. */
1097:
1.1 kristaps 1098: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1099: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1100: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1101: p->offset = p->rmargin;
1102: p->rmargin = p->maxrmargin;
1103: term_word(p, title);
1104: term_flushln(p);
1105: }
1.1 kristaps 1106:
1.118 schwarze 1107: p->flags &= ~TERMP_NOSPACE;
1108: p->offset = 0;
1.1 kristaps 1109: p->rmargin = p->maxrmargin;
1.61 kristaps 1110:
1.62 kristaps 1111: /*
1.126 schwarze 1112: * Groff prints three blank lines before the content.
1113: * Do the same, except in the temporary, undocumented
1114: * mode imitating mdoc(7) output.
1.62 kristaps 1115: */
1116:
1.61 kristaps 1117: term_vspace(p);
1.126 schwarze 1118: if ( ! p->mdocstyle) {
1119: term_vspace(p);
1120: term_vspace(p);
1121: }
1.1 kristaps 1122: }
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