Annotation of mandoc/man_term.c, Revision 1.132
1.132 ! schwarze 1: /* $Id: man_term.c,v 1.131 2012/07/13 14:19:49 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)) {
1.132 ! schwarze 448: switch (n->parent->tok) {
! 449: case (MAN_SH):
! 450: /* FALLTHROUGH */
! 451: case (MAN_SS):
! 452: /* FALLTHROUGH */
! 453: case (MAN_PP):
! 454: /* FALLTHROUGH */
! 455: case (MAN_LP):
! 456: /* FALLTHROUGH */
! 457: case (MAN_P):
! 458: /* FALLTHROUGH */
1.112 kristaps 459: return(0);
1.132 ! schwarze 460: default:
! 461: break;
! 462: }
1.112 kristaps 463: }
1.19 kristaps 464:
1.131 schwarze 465: neg = 0;
1.82 kristaps 466: switch (n->tok) {
467: case (MAN_br):
468: len = 0;
469: break;
470: default:
1.131 schwarze 471: if (NULL == n->child) {
472: len = 1;
473: break;
474: }
475: s = n->child->string;
476: if ('-' == *s) {
477: neg = 1;
478: s++;
479: }
480: len = a2height(p, s);
1.82 kristaps 481: break;
482: }
1.38 kristaps 483:
1.19 kristaps 484: if (0 == len)
485: term_newln(p);
1.131 schwarze 486: else if (neg)
487: p->skipvsp += len;
488: else
489: for (i = 0; i < len; i++)
490: term_vspace(p);
1.19 kristaps 491:
1.15 kristaps 492: return(0);
493: }
494:
495:
496: /* ARGSUSED */
497: static int
1.19 kristaps 498: pre_HP(DECL_ARGS)
499: {
1.117 schwarze 500: size_t len, one;
1.24 kristaps 501: int ival;
502: const struct man_node *nn;
1.19 kristaps 503:
1.20 kristaps 504: switch (n->type) {
505: case (MAN_BLOCK):
1.39 kristaps 506: print_bvspace(p, n);
1.24 kristaps 507: return(1);
1.20 kristaps 508: case (MAN_BODY):
509: break;
510: default:
511: return(0);
512: }
513:
1.130 schwarze 514: if ( ! (MANT_LITERAL & mt->fl)) {
515: p->flags |= TERMP_NOBREAK;
516: p->flags |= TERMP_TWOSPACE;
517: }
518:
1.116 schwarze 519: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 520: ival = -1;
521:
522: /* Calculate offset. */
523:
1.39 kristaps 524: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 525: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 526: len = (size_t)ival;
527:
1.117 schwarze 528: one = term_len(p, 1);
1.121 schwarze 529: if (len < one)
1.117 schwarze 530: len = one;
1.24 kristaps 531:
1.26 kristaps 532: p->offset = mt->offset;
533: p->rmargin = mt->offset + len;
1.24 kristaps 534:
535: if (ival >= 0)
1.116 schwarze 536: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 537:
1.19 kristaps 538: return(1);
539: }
540:
541:
542: /* ARGSUSED */
1.20 kristaps 543: static void
544: post_HP(DECL_ARGS)
545: {
546:
547: switch (n->type) {
548: case (MAN_BODY):
549: term_flushln(p);
550: p->flags &= ~TERMP_NOBREAK;
551: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 552: p->offset = mt->offset;
1.20 kristaps 553: p->rmargin = p->maxrmargin;
554: break;
555: default:
556: break;
557: }
558: }
559:
560:
561: /* ARGSUSED */
1.19 kristaps 562: static int
1.1 kristaps 563: pre_PP(DECL_ARGS)
564: {
565:
1.19 kristaps 566: switch (n->type) {
567: case (MAN_BLOCK):
1.122 schwarze 568: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.39 kristaps 569: print_bvspace(p, n);
1.19 kristaps 570: break;
571: default:
1.26 kristaps 572: p->offset = mt->offset;
1.19 kristaps 573: break;
574: }
575:
1.87 kristaps 576: return(MAN_HEAD != n->type);
1.1 kristaps 577: }
578:
579:
1.3 kristaps 580: /* ARGSUSED */
1.1 kristaps 581: static int
1.4 kristaps 582: pre_IP(DECL_ARGS)
583: {
1.22 kristaps 584: const struct man_node *nn;
585: size_t len;
1.94 schwarze 586: int savelit, ival;
1.18 kristaps 587:
1.22 kristaps 588: switch (n->type) {
589: case (MAN_BODY):
590: p->flags |= TERMP_NOSPACE;
591: break;
592: case (MAN_HEAD):
593: p->flags |= TERMP_NOBREAK;
594: break;
1.23 kristaps 595: case (MAN_BLOCK):
1.39 kristaps 596: print_bvspace(p, n);
1.23 kristaps 597: /* FALLTHROUGH */
1.22 kristaps 598: default:
599: return(1);
600: }
1.18 kristaps 601:
1.116 schwarze 602: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 603: ival = -1;
1.4 kristaps 604:
1.94 schwarze 605: /* Calculate the offset from the optional second argument. */
1.22 kristaps 606: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 607: if (NULL != (nn = nn->next))
1.77 kristaps 608: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 609: len = (size_t)ival;
1.4 kristaps 610:
1.22 kristaps 611: switch (n->type) {
612: case (MAN_HEAD):
1.23 kristaps 613: /* Handle zero-width lengths. */
614: if (0 == len)
1.77 kristaps 615: len = term_len(p, 1);
1.23 kristaps 616:
1.26 kristaps 617: p->offset = mt->offset;
618: p->rmargin = mt->offset + len;
1.22 kristaps 619: if (ival < 0)
620: break;
1.18 kristaps 621:
1.24 kristaps 622: /* Set the saved left-margin. */
1.116 schwarze 623: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 624:
1.94 schwarze 625: savelit = MANT_LITERAL & mt->fl;
626: mt->fl &= ~MANT_LITERAL;
627:
628: if (n->child)
629: print_man_node(p, mt, n->child, m);
630:
631: if (savelit)
632: mt->fl |= MANT_LITERAL;
633:
1.22 kristaps 634: return(0);
1.23 kristaps 635: case (MAN_BODY):
1.26 kristaps 636: p->offset = mt->offset + len;
1.23 kristaps 637: p->rmargin = p->maxrmargin;
638: break;
1.22 kristaps 639: default:
640: break;
1.18 kristaps 641: }
642:
1.22 kristaps 643: return(1);
644: }
1.18 kristaps 645:
646:
1.22 kristaps 647: /* ARGSUSED */
648: static void
649: post_IP(DECL_ARGS)
650: {
1.4 kristaps 651:
1.22 kristaps 652: switch (n->type) {
653: case (MAN_HEAD):
654: term_flushln(p);
655: p->flags &= ~TERMP_NOBREAK;
656: p->rmargin = p->maxrmargin;
657: break;
658: case (MAN_BODY):
1.94 schwarze 659: term_newln(p);
1.22 kristaps 660: break;
661: default:
662: break;
663: }
1.4 kristaps 664: }
665:
666:
667: /* ARGSUSED */
668: static int
1.1 kristaps 669: pre_TP(DECL_ARGS)
670: {
1.23 kristaps 671: const struct man_node *nn;
672: size_t len;
1.94 schwarze 673: int savelit, ival;
1.1 kristaps 674:
1.21 kristaps 675: switch (n->type) {
676: case (MAN_HEAD):
677: p->flags |= TERMP_NOBREAK;
678: break;
679: case (MAN_BODY):
680: p->flags |= TERMP_NOSPACE;
1.23 kristaps 681: break;
682: case (MAN_BLOCK):
1.39 kristaps 683: print_bvspace(p, n);
1.23 kristaps 684: /* FALLTHROUGH */
685: default:
686: return(1);
687: }
688:
1.116 schwarze 689: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 690: ival = -1;
691:
692: /* Calculate offset. */
693:
1.116 schwarze 694: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 695: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 696: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 697: len = (size_t)ival;
698:
699: switch (n->type) {
700: case (MAN_HEAD):
701: /* Handle zero-length properly. */
702: if (0 == len)
1.77 kristaps 703: len = term_len(p, 1);
1.23 kristaps 704:
1.26 kristaps 705: p->offset = mt->offset;
706: p->rmargin = mt->offset + len;
1.23 kristaps 707:
1.94 schwarze 708: savelit = MANT_LITERAL & mt->fl;
709: mt->fl &= ~MANT_LITERAL;
710:
1.23 kristaps 711: /* Don't print same-line elements. */
1.94 schwarze 712: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 713: if (nn->line > n->line)
1.45 kristaps 714: print_man_node(p, mt, nn, m);
1.24 kristaps 715:
1.94 schwarze 716: if (savelit)
717: mt->fl |= MANT_LITERAL;
1.24 kristaps 718: if (ival >= 0)
1.116 schwarze 719: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 720:
1.23 kristaps 721: return(0);
722: case (MAN_BODY):
1.26 kristaps 723: p->offset = mt->offset + len;
1.23 kristaps 724: p->rmargin = p->maxrmargin;
1.130 schwarze 725: p->flags &= ~TERMP_NOBREAK;
726: p->flags &= ~TERMP_TWOSPACE;
1.21 kristaps 727: break;
728: default:
729: break;
730: }
1.16 kristaps 731:
1.21 kristaps 732: return(1);
733: }
1.1 kristaps 734:
735:
1.21 kristaps 736: /* ARGSUSED */
737: static void
738: post_TP(DECL_ARGS)
739: {
1.1 kristaps 740:
1.21 kristaps 741: switch (n->type) {
742: case (MAN_HEAD):
743: term_flushln(p);
744: break;
745: case (MAN_BODY):
1.94 schwarze 746: term_newln(p);
1.21 kristaps 747: break;
748: default:
749: break;
750: }
1.1 kristaps 751: }
752:
753:
1.3 kristaps 754: /* ARGSUSED */
1.1 kristaps 755: static int
756: pre_SS(DECL_ARGS)
757: {
758:
1.19 kristaps 759: switch (n->type) {
760: case (MAN_BLOCK):
1.113 kristaps 761: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 762: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
763: mt->offset = term_len(p, p->defindent);
1.24 kristaps 764: /* If following a prior empty `SS', no vspace. */
765: if (n->prev && MAN_SS == n->prev->tok)
766: if (NULL == n->prev->body->child)
767: break;
768: if (NULL == n->prev)
769: break;
770: term_vspace(p);
1.19 kristaps 771: break;
772: case (MAN_HEAD):
1.52 kristaps 773: term_fontrepl(p, TERMFONT_BOLD);
1.122 schwarze 774: p->offset = term_len(p, p->defindent/2);
1.19 kristaps 775: break;
1.24 kristaps 776: case (MAN_BODY):
1.26 kristaps 777: p->offset = mt->offset;
1.24 kristaps 778: break;
1.19 kristaps 779: default:
780: break;
781: }
782:
1.1 kristaps 783: return(1);
784: }
785:
786:
1.3 kristaps 787: /* ARGSUSED */
1.1 kristaps 788: static void
789: post_SS(DECL_ARGS)
790: {
791:
1.19 kristaps 792: switch (n->type) {
793: case (MAN_HEAD):
794: term_newln(p);
795: break;
1.24 kristaps 796: case (MAN_BODY):
797: term_newln(p);
798: break;
1.19 kristaps 799: default:
800: break;
801: }
1.1 kristaps 802: }
803:
804:
1.3 kristaps 805: /* ARGSUSED */
1.1 kristaps 806: static int
807: pre_SH(DECL_ARGS)
808: {
1.22 kristaps 809:
1.19 kristaps 810: switch (n->type) {
811: case (MAN_BLOCK):
1.113 kristaps 812: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 813: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
814: mt->offset = term_len(p, p->defindent);
1.22 kristaps 815: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 816: if (n->prev && MAN_SH == n->prev->tok)
817: if (NULL == n->prev->body->child)
818: break;
1.61 kristaps 819: /* If the first macro, no vspae. */
820: if (NULL == n->prev)
821: break;
1.19 kristaps 822: term_vspace(p);
823: break;
824: case (MAN_HEAD):
1.52 kristaps 825: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 826: p->offset = 0;
827: break;
828: case (MAN_BODY):
1.26 kristaps 829: p->offset = mt->offset;
1.19 kristaps 830: break;
831: default:
832: break;
833: }
1.1 kristaps 834:
835: return(1);
836: }
837:
838:
1.3 kristaps 839: /* ARGSUSED */
1.1 kristaps 840: static void
841: post_SH(DECL_ARGS)
842: {
843:
1.19 kristaps 844: switch (n->type) {
845: case (MAN_HEAD):
846: term_newln(p);
847: break;
848: case (MAN_BODY):
849: term_newln(p);
850: break;
851: default:
852: break;
853: }
1.1 kristaps 854: }
855:
1.26 kristaps 856: /* ARGSUSED */
857: static int
858: pre_RS(DECL_ARGS)
859: {
1.110 kristaps 860: int ival;
861: size_t sz;
1.26 kristaps 862:
863: switch (n->type) {
864: case (MAN_BLOCK):
865: term_newln(p);
866: return(1);
867: case (MAN_HEAD):
868: return(0);
869: default:
870: break;
871: }
872:
1.122 schwarze 873: sz = term_len(p, p->defindent);
1.26 kristaps 874:
1.110 kristaps 875: if (NULL != (n = n->parent->head->child))
876: if ((ival = a2width(p, n->string)) >= 0)
877: sz = (size_t)ival;
1.26 kristaps 878:
1.110 kristaps 879: mt->offset += sz;
1.119 schwarze 880: p->rmargin = p->maxrmargin;
881: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.26 kristaps 882:
1.116 schwarze 883: if (++mt->lmarginsz < MAXMARGINS)
884: mt->lmargincur = mt->lmarginsz;
885:
886: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 887: return(1);
888: }
889:
890: /* ARGSUSED */
891: static void
892: post_RS(DECL_ARGS)
893: {
1.110 kristaps 894: int ival;
895: size_t sz;
1.26 kristaps 896:
897: switch (n->type) {
898: case (MAN_BLOCK):
1.110 kristaps 899: return;
1.59 kristaps 900: case (MAN_HEAD):
1.110 kristaps 901: return;
1.26 kristaps 902: default:
903: term_newln(p);
904: break;
905: }
1.110 kristaps 906:
1.122 schwarze 907: sz = term_len(p, p->defindent);
1.110 kristaps 908:
909: if (NULL != (n = n->parent->head->child))
910: if ((ival = a2width(p, n->string)) >= 0)
911: sz = (size_t)ival;
912:
913: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
914: p->offset = mt->offset;
1.116 schwarze 915:
916: if (--mt->lmarginsz < MAXMARGINS)
917: mt->lmargincur = mt->lmarginsz;
1.26 kristaps 918: }
919:
1.1 kristaps 920: static void
1.45 kristaps 921: print_man_node(DECL_ARGS)
1.1 kristaps 922: {
1.65 joerg 923: size_t rm, rmax;
1.54 kristaps 924: int c;
1.1 kristaps 925:
926: switch (n->type) {
927: case(MAN_TEXT):
1.97 kristaps 928: /*
929: * If we have a blank line, output a vertical space.
930: * If we have a space as the first character, break
931: * before printing the line's data.
932: */
1.96 kristaps 933: if ('\0' == *n->string) {
1.4 kristaps 934: term_vspace(p);
1.98 schwarze 935: return;
1.97 kristaps 936: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 937: term_newln(p);
1.54 kristaps 938:
1.4 kristaps 939: term_word(p, n->string);
1.130 schwarze 940: goto out;
1.52 kristaps 941:
1.102 kristaps 942: case (MAN_EQN):
1.115 kristaps 943: term_eqn(p, n->eqn);
1.97 kristaps 944: return;
1.91 kristaps 945: case (MAN_TBL):
1.97 kristaps 946: /*
947: * Tables are preceded by a newline. Then process a
948: * table line, which will cause line termination,
949: */
1.93 kristaps 950: if (TBL_SPAN_FIRST & n->span->flags)
951: term_newln(p);
1.92 kristaps 952: term_tbl(p, n->span);
1.97 kristaps 953: return;
1.1 kristaps 954: default:
955: break;
956: }
957:
1.97 kristaps 958: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
959: term_fontrepl(p, TERMFONT_NONE);
960:
961: c = 1;
962: if (termacts[n->tok].pre)
963: c = (*termacts[n->tok].pre)(p, mt, n, m);
964:
1.1 kristaps 965: if (c && n->child)
1.52 kristaps 966: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 967:
1.97 kristaps 968: if (termacts[n->tok].post)
969: (*termacts[n->tok].post)(p, mt, n, m);
970: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
971: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 972:
1.130 schwarze 973: out:
974: /*
975: * If we're in a literal context, make sure that words
976: * together on the same line stay together. This is a
977: * POST-printing call, so we check the NEXT word. Since
978: * -man doesn't have nested macros, we don't need to be
979: * more specific than this.
980: */
981: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
982: NULL != n->next && n->next->line > n->line) {
983: rm = p->rmargin;
984: rmax = p->maxrmargin;
985: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
986: p->flags |= TERMP_NOSPACE;
987: if (NULL != n->string && '\0' != *n->string)
988: term_flushln(p);
989: else
990: term_newln(p);
991: if (rm < rmax && n->parent->tok == MAN_HP) {
992: p->offset = rm;
993: p->rmargin = rmax;
994: } else
995: p->rmargin = rm;
996: p->maxrmargin = rmax;
997: }
1.63 kristaps 998: if (MAN_EOS & n->flags)
999: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1000: }
1001:
1002:
1003: static void
1.52 kristaps 1004: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1005: {
1.19 kristaps 1006:
1.45 kristaps 1007: print_man_node(p, mt, n, m);
1.1 kristaps 1008: if ( ! n->next)
1009: return;
1.52 kristaps 1010: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 1011: }
1012:
1013:
1.31 kristaps 1014: static void
1.73 kristaps 1015: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 1016: {
1.123 schwarze 1017: char title[BUFSIZ];
1018: size_t datelen;
1.73 kristaps 1019: const struct man_meta *meta;
1020:
1021: meta = (const struct man_meta *)arg;
1.125 schwarze 1022: assert(meta->title);
1023: assert(meta->msec);
1024: assert(meta->date);
1.1 kristaps 1025:
1.52 kristaps 1026: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1027:
1.69 joerg 1028: term_vspace(p);
1.126 schwarze 1029:
1030: /*
1031: * Temporary, undocumented option to imitate mdoc(7) output.
1032: * In the bottom right corner, use the source instead of
1033: * the title.
1034: */
1035:
1036: if ( ! p->mdocstyle) {
1037: term_vspace(p);
1038: term_vspace(p);
1039: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1040: } else if (meta->source) {
1041: strlcpy(title, meta->source, BUFSIZ);
1042: } else {
1043: title[0] = '\0';
1044: }
1.125 schwarze 1045: datelen = term_strlen(p, meta->date);
1.1 kristaps 1046:
1.126 schwarze 1047: /* Bottom left corner: manual source. */
1048:
1.1 kristaps 1049: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1050: p->offset = 0;
1.123 schwarze 1051: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1052:
1053: if (meta->source)
1054: term_word(p, meta->source);
1055: term_flushln(p);
1056:
1.126 schwarze 1057: /* At the bottom in the middle: manual date. */
1058:
1.117 schwarze 1059: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1060: p->offset = p->rmargin;
1.123 schwarze 1061: p->rmargin = p->maxrmargin - term_strlen(p, title);
1062: if (p->offset + datelen >= p->rmargin)
1063: p->rmargin = p->offset + datelen;
1064:
1.125 schwarze 1065: term_word(p, meta->date);
1.123 schwarze 1066: term_flushln(p);
1067:
1.126 schwarze 1068: /* Bottom right corner: manual title and section. */
1069:
1.123 schwarze 1070: p->flags &= ~TERMP_NOBREAK;
1071: p->flags |= TERMP_NOSPACE;
1072: p->offset = p->rmargin;
1.1 kristaps 1073: p->rmargin = p->maxrmargin;
1074:
1.123 schwarze 1075: term_word(p, title);
1.1 kristaps 1076: term_flushln(p);
1077: }
1078:
1079:
1.31 kristaps 1080: static void
1.73 kristaps 1081: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1082: {
1.46 kristaps 1083: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1084: size_t buflen, titlen;
1.73 kristaps 1085: const struct man_meta *m;
1086:
1087: m = (const struct man_meta *)arg;
1.125 schwarze 1088: assert(m->title);
1089: assert(m->msec);
1.1 kristaps 1090:
1.46 kristaps 1091: if (m->vol)
1092: strlcpy(buf, m->vol, BUFSIZ);
1.126 schwarze 1093: else
1094: buf[0] = '\0';
1.77 kristaps 1095: buflen = term_strlen(p, buf);
1.1 kristaps 1096:
1.126 schwarze 1097: /* Top left corner: manual title and section. */
1098:
1.125 schwarze 1099: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.77 kristaps 1100: titlen = term_strlen(p, title);
1.1 kristaps 1101:
1.118 schwarze 1102: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1103: p->offset = 0;
1.57 kristaps 1104: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1105: (p->maxrmargin -
1106: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1107: p->maxrmargin - buflen;
1.1 kristaps 1108:
1109: term_word(p, title);
1110: term_flushln(p);
1111:
1.126 schwarze 1112: /* At the top in the middle: manual volume. */
1113:
1.117 schwarze 1114: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1115: p->offset = p->rmargin;
1.57 kristaps 1116: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1117: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1118:
1119: term_word(p, buf);
1120: term_flushln(p);
1121:
1.126 schwarze 1122: /* Top right corner: title and section, again. */
1123:
1.1 kristaps 1124: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1125: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1126: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1127: p->offset = p->rmargin;
1128: p->rmargin = p->maxrmargin;
1129: term_word(p, title);
1130: term_flushln(p);
1131: }
1.1 kristaps 1132:
1.118 schwarze 1133: p->flags &= ~TERMP_NOSPACE;
1134: p->offset = 0;
1.1 kristaps 1135: p->rmargin = p->maxrmargin;
1.61 kristaps 1136:
1.62 kristaps 1137: /*
1.126 schwarze 1138: * Groff prints three blank lines before the content.
1139: * Do the same, except in the temporary, undocumented
1140: * mode imitating mdoc(7) output.
1.62 kristaps 1141: */
1142:
1.61 kristaps 1143: term_vspace(p);
1.126 schwarze 1144: if ( ! p->mdocstyle) {
1145: term_vspace(p);
1146: term_vspace(p);
1147: }
1.1 kristaps 1148: }
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