Annotation of mandoc/man_term.c, Revision 1.131
1.131 ! schwarze 1: /* $Id: man_term.c,v 1.130 2012/07/10 19:54:11 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: {
1.131 ! schwarze 443: char *s;
1.77 kristaps 444: size_t i, len;
1.131 ! schwarze 445: int neg;
1.112 kristaps 446:
447: if ((NULL == n->prev && n->parent)) {
448: if (MAN_SS == n->parent->tok)
449: return(0);
450: if (MAN_SH == n->parent->tok)
451: return(0);
452: }
1.19 kristaps 453:
1.131 ! schwarze 454: neg = 0;
1.82 kristaps 455: switch (n->tok) {
456: case (MAN_br):
457: len = 0;
458: break;
459: default:
1.131 ! schwarze 460: if (NULL == n->child) {
! 461: len = 1;
! 462: break;
! 463: }
! 464: s = n->child->string;
! 465: if ('-' == *s) {
! 466: neg = 1;
! 467: s++;
! 468: }
! 469: len = a2height(p, s);
1.82 kristaps 470: break;
471: }
1.38 kristaps 472:
1.19 kristaps 473: if (0 == len)
474: term_newln(p);
1.131 ! schwarze 475: else if (neg)
! 476: p->skipvsp += len;
! 477: else
! 478: for (i = 0; i < len; i++)
! 479: term_vspace(p);
1.19 kristaps 480:
1.15 kristaps 481: return(0);
482: }
483:
484:
485: /* ARGSUSED */
486: static int
1.19 kristaps 487: pre_HP(DECL_ARGS)
488: {
1.117 schwarze 489: size_t len, one;
1.24 kristaps 490: int ival;
491: const struct man_node *nn;
1.19 kristaps 492:
1.20 kristaps 493: switch (n->type) {
494: case (MAN_BLOCK):
1.39 kristaps 495: print_bvspace(p, n);
1.24 kristaps 496: return(1);
1.20 kristaps 497: case (MAN_BODY):
498: break;
499: default:
500: return(0);
501: }
502:
1.130 schwarze 503: if ( ! (MANT_LITERAL & mt->fl)) {
504: p->flags |= TERMP_NOBREAK;
505: p->flags |= TERMP_TWOSPACE;
506: }
507:
1.116 schwarze 508: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 509: ival = -1;
510:
511: /* Calculate offset. */
512:
1.39 kristaps 513: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 514: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 515: len = (size_t)ival;
516:
1.117 schwarze 517: one = term_len(p, 1);
1.121 schwarze 518: if (len < one)
1.117 schwarze 519: len = one;
1.24 kristaps 520:
1.26 kristaps 521: p->offset = mt->offset;
522: p->rmargin = mt->offset + len;
1.24 kristaps 523:
524: if (ival >= 0)
1.116 schwarze 525: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 526:
1.19 kristaps 527: return(1);
528: }
529:
530:
531: /* ARGSUSED */
1.20 kristaps 532: static void
533: post_HP(DECL_ARGS)
534: {
535:
536: switch (n->type) {
537: case (MAN_BODY):
538: term_flushln(p);
539: p->flags &= ~TERMP_NOBREAK;
540: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 541: p->offset = mt->offset;
1.20 kristaps 542: p->rmargin = p->maxrmargin;
543: break;
544: default:
545: break;
546: }
547: }
548:
549:
550: /* ARGSUSED */
1.19 kristaps 551: static int
1.1 kristaps 552: pre_PP(DECL_ARGS)
553: {
554:
1.19 kristaps 555: switch (n->type) {
556: case (MAN_BLOCK):
1.122 schwarze 557: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.39 kristaps 558: print_bvspace(p, n);
1.19 kristaps 559: break;
560: default:
1.26 kristaps 561: p->offset = mt->offset;
1.19 kristaps 562: break;
563: }
564:
1.87 kristaps 565: return(MAN_HEAD != n->type);
1.1 kristaps 566: }
567:
568:
1.3 kristaps 569: /* ARGSUSED */
1.1 kristaps 570: static int
1.4 kristaps 571: pre_IP(DECL_ARGS)
572: {
1.22 kristaps 573: const struct man_node *nn;
574: size_t len;
1.94 schwarze 575: int savelit, ival;
1.18 kristaps 576:
1.22 kristaps 577: switch (n->type) {
578: case (MAN_BODY):
579: p->flags |= TERMP_NOSPACE;
580: break;
581: case (MAN_HEAD):
582: p->flags |= TERMP_NOBREAK;
583: break;
1.23 kristaps 584: case (MAN_BLOCK):
1.39 kristaps 585: print_bvspace(p, n);
1.23 kristaps 586: /* FALLTHROUGH */
1.22 kristaps 587: default:
588: return(1);
589: }
1.18 kristaps 590:
1.116 schwarze 591: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 592: ival = -1;
1.4 kristaps 593:
1.94 schwarze 594: /* Calculate the offset from the optional second argument. */
1.22 kristaps 595: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 596: if (NULL != (nn = nn->next))
1.77 kristaps 597: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 598: len = (size_t)ival;
1.4 kristaps 599:
1.22 kristaps 600: switch (n->type) {
601: case (MAN_HEAD):
1.23 kristaps 602: /* Handle zero-width lengths. */
603: if (0 == len)
1.77 kristaps 604: len = term_len(p, 1);
1.23 kristaps 605:
1.26 kristaps 606: p->offset = mt->offset;
607: p->rmargin = mt->offset + len;
1.22 kristaps 608: if (ival < 0)
609: break;
1.18 kristaps 610:
1.24 kristaps 611: /* Set the saved left-margin. */
1.116 schwarze 612: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 613:
1.94 schwarze 614: savelit = MANT_LITERAL & mt->fl;
615: mt->fl &= ~MANT_LITERAL;
616:
617: if (n->child)
618: print_man_node(p, mt, n->child, m);
619:
620: if (savelit)
621: mt->fl |= MANT_LITERAL;
622:
1.22 kristaps 623: return(0);
1.23 kristaps 624: case (MAN_BODY):
1.26 kristaps 625: p->offset = mt->offset + len;
1.23 kristaps 626: p->rmargin = p->maxrmargin;
627: break;
1.22 kristaps 628: default:
629: break;
1.18 kristaps 630: }
631:
1.22 kristaps 632: return(1);
633: }
1.18 kristaps 634:
635:
1.22 kristaps 636: /* ARGSUSED */
637: static void
638: post_IP(DECL_ARGS)
639: {
1.4 kristaps 640:
1.22 kristaps 641: switch (n->type) {
642: case (MAN_HEAD):
643: term_flushln(p);
644: p->flags &= ~TERMP_NOBREAK;
645: p->rmargin = p->maxrmargin;
646: break;
647: case (MAN_BODY):
1.94 schwarze 648: term_newln(p);
1.22 kristaps 649: break;
650: default:
651: break;
652: }
1.4 kristaps 653: }
654:
655:
656: /* ARGSUSED */
657: static int
1.1 kristaps 658: pre_TP(DECL_ARGS)
659: {
1.23 kristaps 660: const struct man_node *nn;
661: size_t len;
1.94 schwarze 662: int savelit, ival;
1.1 kristaps 663:
1.21 kristaps 664: switch (n->type) {
665: case (MAN_HEAD):
666: p->flags |= TERMP_NOBREAK;
667: break;
668: case (MAN_BODY):
669: p->flags |= TERMP_NOSPACE;
1.23 kristaps 670: break;
671: case (MAN_BLOCK):
1.39 kristaps 672: print_bvspace(p, n);
1.23 kristaps 673: /* FALLTHROUGH */
674: default:
675: return(1);
676: }
677:
1.116 schwarze 678: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 679: ival = -1;
680:
681: /* Calculate offset. */
682:
1.116 schwarze 683: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 684: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 685: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 686: len = (size_t)ival;
687:
688: switch (n->type) {
689: case (MAN_HEAD):
690: /* Handle zero-length properly. */
691: if (0 == len)
1.77 kristaps 692: len = term_len(p, 1);
1.23 kristaps 693:
1.26 kristaps 694: p->offset = mt->offset;
695: p->rmargin = mt->offset + len;
1.23 kristaps 696:
1.94 schwarze 697: savelit = MANT_LITERAL & mt->fl;
698: mt->fl &= ~MANT_LITERAL;
699:
1.23 kristaps 700: /* Don't print same-line elements. */
1.94 schwarze 701: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 702: if (nn->line > n->line)
1.45 kristaps 703: print_man_node(p, mt, nn, m);
1.24 kristaps 704:
1.94 schwarze 705: if (savelit)
706: mt->fl |= MANT_LITERAL;
1.24 kristaps 707: if (ival >= 0)
1.116 schwarze 708: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 709:
1.23 kristaps 710: return(0);
711: case (MAN_BODY):
1.26 kristaps 712: p->offset = mt->offset + len;
1.23 kristaps 713: p->rmargin = p->maxrmargin;
1.130 schwarze 714: p->flags &= ~TERMP_NOBREAK;
715: p->flags &= ~TERMP_TWOSPACE;
1.21 kristaps 716: break;
717: default:
718: break;
719: }
1.16 kristaps 720:
1.21 kristaps 721: return(1);
722: }
1.1 kristaps 723:
724:
1.21 kristaps 725: /* ARGSUSED */
726: static void
727: post_TP(DECL_ARGS)
728: {
1.1 kristaps 729:
1.21 kristaps 730: switch (n->type) {
731: case (MAN_HEAD):
732: term_flushln(p);
733: break;
734: case (MAN_BODY):
1.94 schwarze 735: term_newln(p);
1.21 kristaps 736: break;
737: default:
738: break;
739: }
1.1 kristaps 740: }
741:
742:
1.3 kristaps 743: /* ARGSUSED */
1.1 kristaps 744: static int
745: pre_SS(DECL_ARGS)
746: {
747:
1.19 kristaps 748: switch (n->type) {
749: case (MAN_BLOCK):
1.113 kristaps 750: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 751: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
752: mt->offset = term_len(p, p->defindent);
1.24 kristaps 753: /* If following a prior empty `SS', no vspace. */
754: if (n->prev && MAN_SS == n->prev->tok)
755: if (NULL == n->prev->body->child)
756: break;
757: if (NULL == n->prev)
758: break;
759: term_vspace(p);
1.19 kristaps 760: break;
761: case (MAN_HEAD):
1.52 kristaps 762: term_fontrepl(p, TERMFONT_BOLD);
1.122 schwarze 763: p->offset = term_len(p, p->defindent/2);
1.19 kristaps 764: break;
1.24 kristaps 765: case (MAN_BODY):
1.26 kristaps 766: p->offset = mt->offset;
1.24 kristaps 767: break;
1.19 kristaps 768: default:
769: break;
770: }
771:
1.1 kristaps 772: return(1);
773: }
774:
775:
1.3 kristaps 776: /* ARGSUSED */
1.1 kristaps 777: static void
778: post_SS(DECL_ARGS)
779: {
780:
1.19 kristaps 781: switch (n->type) {
782: case (MAN_HEAD):
783: term_newln(p);
784: break;
1.24 kristaps 785: case (MAN_BODY):
786: term_newln(p);
787: break;
1.19 kristaps 788: default:
789: break;
790: }
1.1 kristaps 791: }
792:
793:
1.3 kristaps 794: /* ARGSUSED */
1.1 kristaps 795: static int
796: pre_SH(DECL_ARGS)
797: {
1.22 kristaps 798:
1.19 kristaps 799: switch (n->type) {
800: case (MAN_BLOCK):
1.113 kristaps 801: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 802: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
803: mt->offset = term_len(p, p->defindent);
1.22 kristaps 804: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 805: if (n->prev && MAN_SH == n->prev->tok)
806: if (NULL == n->prev->body->child)
807: break;
1.61 kristaps 808: /* If the first macro, no vspae. */
809: if (NULL == n->prev)
810: break;
1.19 kristaps 811: term_vspace(p);
812: break;
813: case (MAN_HEAD):
1.52 kristaps 814: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 815: p->offset = 0;
816: break;
817: case (MAN_BODY):
1.26 kristaps 818: p->offset = mt->offset;
1.19 kristaps 819: break;
820: default:
821: break;
822: }
1.1 kristaps 823:
824: return(1);
825: }
826:
827:
1.3 kristaps 828: /* ARGSUSED */
1.1 kristaps 829: static void
830: post_SH(DECL_ARGS)
831: {
832:
1.19 kristaps 833: switch (n->type) {
834: case (MAN_HEAD):
835: term_newln(p);
836: break;
837: case (MAN_BODY):
838: term_newln(p);
839: break;
840: default:
841: break;
842: }
1.1 kristaps 843: }
844:
1.26 kristaps 845: /* ARGSUSED */
846: static int
847: pre_RS(DECL_ARGS)
848: {
1.110 kristaps 849: int ival;
850: size_t sz;
1.26 kristaps 851:
852: switch (n->type) {
853: case (MAN_BLOCK):
854: term_newln(p);
855: return(1);
856: case (MAN_HEAD):
857: return(0);
858: default:
859: break;
860: }
861:
1.122 schwarze 862: sz = term_len(p, p->defindent);
1.26 kristaps 863:
1.110 kristaps 864: if (NULL != (n = n->parent->head->child))
865: if ((ival = a2width(p, n->string)) >= 0)
866: sz = (size_t)ival;
1.26 kristaps 867:
1.110 kristaps 868: mt->offset += sz;
1.119 schwarze 869: p->rmargin = p->maxrmargin;
870: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.26 kristaps 871:
1.116 schwarze 872: if (++mt->lmarginsz < MAXMARGINS)
873: mt->lmargincur = mt->lmarginsz;
874:
875: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 876: return(1);
877: }
878:
879: /* ARGSUSED */
880: static void
881: post_RS(DECL_ARGS)
882: {
1.110 kristaps 883: int ival;
884: size_t sz;
1.26 kristaps 885:
886: switch (n->type) {
887: case (MAN_BLOCK):
1.110 kristaps 888: return;
1.59 kristaps 889: case (MAN_HEAD):
1.110 kristaps 890: return;
1.26 kristaps 891: default:
892: term_newln(p);
893: break;
894: }
1.110 kristaps 895:
1.122 schwarze 896: sz = term_len(p, p->defindent);
1.110 kristaps 897:
898: if (NULL != (n = n->parent->head->child))
899: if ((ival = a2width(p, n->string)) >= 0)
900: sz = (size_t)ival;
901:
902: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
903: p->offset = mt->offset;
1.116 schwarze 904:
905: if (--mt->lmarginsz < MAXMARGINS)
906: mt->lmargincur = mt->lmarginsz;
1.26 kristaps 907: }
908:
1.1 kristaps 909: static void
1.45 kristaps 910: print_man_node(DECL_ARGS)
1.1 kristaps 911: {
1.65 joerg 912: size_t rm, rmax;
1.54 kristaps 913: int c;
1.1 kristaps 914:
915: switch (n->type) {
916: case(MAN_TEXT):
1.97 kristaps 917: /*
918: * If we have a blank line, output a vertical space.
919: * If we have a space as the first character, break
920: * before printing the line's data.
921: */
1.96 kristaps 922: if ('\0' == *n->string) {
1.4 kristaps 923: term_vspace(p);
1.98 schwarze 924: return;
1.97 kristaps 925: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 926: term_newln(p);
1.54 kristaps 927:
1.4 kristaps 928: term_word(p, n->string);
1.130 schwarze 929: goto out;
1.52 kristaps 930:
1.102 kristaps 931: case (MAN_EQN):
1.115 kristaps 932: term_eqn(p, n->eqn);
1.97 kristaps 933: return;
1.91 kristaps 934: case (MAN_TBL):
1.97 kristaps 935: /*
936: * Tables are preceded by a newline. Then process a
937: * table line, which will cause line termination,
938: */
1.93 kristaps 939: if (TBL_SPAN_FIRST & n->span->flags)
940: term_newln(p);
1.92 kristaps 941: term_tbl(p, n->span);
1.97 kristaps 942: return;
1.1 kristaps 943: default:
944: break;
945: }
946:
1.97 kristaps 947: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
948: term_fontrepl(p, TERMFONT_NONE);
949:
950: c = 1;
951: if (termacts[n->tok].pre)
952: c = (*termacts[n->tok].pre)(p, mt, n, m);
953:
1.1 kristaps 954: if (c && n->child)
1.52 kristaps 955: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 956:
1.97 kristaps 957: if (termacts[n->tok].post)
958: (*termacts[n->tok].post)(p, mt, n, m);
959: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
960: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 961:
1.130 schwarze 962: out:
963: /*
964: * If we're in a literal context, make sure that words
965: * together on the same line stay together. This is a
966: * POST-printing call, so we check the NEXT word. Since
967: * -man doesn't have nested macros, we don't need to be
968: * more specific than this.
969: */
970: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
971: NULL != n->next && n->next->line > n->line) {
972: rm = p->rmargin;
973: rmax = p->maxrmargin;
974: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
975: p->flags |= TERMP_NOSPACE;
976: if (NULL != n->string && '\0' != *n->string)
977: term_flushln(p);
978: else
979: term_newln(p);
980: if (rm < rmax && n->parent->tok == MAN_HP) {
981: p->offset = rm;
982: p->rmargin = rmax;
983: } else
984: p->rmargin = rm;
985: p->maxrmargin = rmax;
986: }
1.63 kristaps 987: if (MAN_EOS & n->flags)
988: p->flags |= TERMP_SENTENCE;
1.1 kristaps 989: }
990:
991:
992: static void
1.52 kristaps 993: print_man_nodelist(DECL_ARGS)
1.1 kristaps 994: {
1.19 kristaps 995:
1.45 kristaps 996: print_man_node(p, mt, n, m);
1.1 kristaps 997: if ( ! n->next)
998: return;
1.52 kristaps 999: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 1000: }
1001:
1002:
1.31 kristaps 1003: static void
1.73 kristaps 1004: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 1005: {
1.123 schwarze 1006: char title[BUFSIZ];
1007: size_t datelen;
1.73 kristaps 1008: const struct man_meta *meta;
1009:
1010: meta = (const struct man_meta *)arg;
1.125 schwarze 1011: assert(meta->title);
1012: assert(meta->msec);
1013: assert(meta->date);
1.1 kristaps 1014:
1.52 kristaps 1015: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1016:
1.69 joerg 1017: term_vspace(p);
1.126 schwarze 1018:
1019: /*
1020: * Temporary, undocumented option to imitate mdoc(7) output.
1021: * In the bottom right corner, use the source instead of
1022: * the title.
1023: */
1024:
1025: if ( ! p->mdocstyle) {
1026: term_vspace(p);
1027: term_vspace(p);
1028: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1029: } else if (meta->source) {
1030: strlcpy(title, meta->source, BUFSIZ);
1031: } else {
1032: title[0] = '\0';
1033: }
1.125 schwarze 1034: datelen = term_strlen(p, meta->date);
1.1 kristaps 1035:
1.126 schwarze 1036: /* Bottom left corner: manual source. */
1037:
1.1 kristaps 1038: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1039: p->offset = 0;
1.123 schwarze 1040: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1041:
1042: if (meta->source)
1043: term_word(p, meta->source);
1044: term_flushln(p);
1045:
1.126 schwarze 1046: /* At the bottom in the middle: manual date. */
1047:
1.117 schwarze 1048: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1049: p->offset = p->rmargin;
1.123 schwarze 1050: p->rmargin = p->maxrmargin - term_strlen(p, title);
1051: if (p->offset + datelen >= p->rmargin)
1052: p->rmargin = p->offset + datelen;
1053:
1.125 schwarze 1054: term_word(p, meta->date);
1.123 schwarze 1055: term_flushln(p);
1056:
1.126 schwarze 1057: /* Bottom right corner: manual title and section. */
1058:
1.123 schwarze 1059: p->flags &= ~TERMP_NOBREAK;
1060: p->flags |= TERMP_NOSPACE;
1061: p->offset = p->rmargin;
1.1 kristaps 1062: p->rmargin = p->maxrmargin;
1063:
1.123 schwarze 1064: term_word(p, title);
1.1 kristaps 1065: term_flushln(p);
1066: }
1067:
1068:
1.31 kristaps 1069: static void
1.73 kristaps 1070: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1071: {
1.46 kristaps 1072: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1073: size_t buflen, titlen;
1.73 kristaps 1074: const struct man_meta *m;
1075:
1076: m = (const struct man_meta *)arg;
1.125 schwarze 1077: assert(m->title);
1078: assert(m->msec);
1.1 kristaps 1079:
1.46 kristaps 1080: if (m->vol)
1081: strlcpy(buf, m->vol, BUFSIZ);
1.126 schwarze 1082: else
1083: buf[0] = '\0';
1.77 kristaps 1084: buflen = term_strlen(p, buf);
1.1 kristaps 1085:
1.126 schwarze 1086: /* Top left corner: manual title and section. */
1087:
1.125 schwarze 1088: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.77 kristaps 1089: titlen = term_strlen(p, title);
1.1 kristaps 1090:
1.118 schwarze 1091: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1092: p->offset = 0;
1.57 kristaps 1093: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1094: (p->maxrmargin -
1095: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1096: p->maxrmargin - buflen;
1.1 kristaps 1097:
1098: term_word(p, title);
1099: term_flushln(p);
1100:
1.126 schwarze 1101: /* At the top in the middle: manual volume. */
1102:
1.117 schwarze 1103: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1104: p->offset = p->rmargin;
1.57 kristaps 1105: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1106: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1107:
1108: term_word(p, buf);
1109: term_flushln(p);
1110:
1.126 schwarze 1111: /* Top right corner: title and section, again. */
1112:
1.1 kristaps 1113: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1114: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1115: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1116: p->offset = p->rmargin;
1117: p->rmargin = p->maxrmargin;
1118: term_word(p, title);
1119: term_flushln(p);
1120: }
1.1 kristaps 1121:
1.118 schwarze 1122: p->flags &= ~TERMP_NOSPACE;
1123: p->offset = 0;
1.1 kristaps 1124: p->rmargin = p->maxrmargin;
1.61 kristaps 1125:
1.62 kristaps 1126: /*
1.126 schwarze 1127: * Groff prints three blank lines before the content.
1128: * Do the same, except in the temporary, undocumented
1129: * mode imitating mdoc(7) output.
1.62 kristaps 1130: */
1131:
1.61 kristaps 1132: term_vspace(p);
1.126 schwarze 1133: if ( ! p->mdocstyle) {
1134: term_vspace(p);
1135: term_vspace(p);
1136: }
1.1 kristaps 1137: }
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