Annotation of mandoc/man_term.c, Revision 1.128
1.128 ! schwarze 1: /* $Id: man_term.c,v 1.127 2012/01/03 15:16:24 kristaps Exp $ */
1.1 kristaps 2: /*
1.128 ! schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.94 schwarze 4: * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.55 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.28 kristaps 22: #include <sys/types.h>
23:
1.1 kristaps 24: #include <assert.h>
1.18 kristaps 25: #include <ctype.h>
1.1 kristaps 26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
29:
1.71 kristaps 30: #include "mandoc.h"
1.40 kristaps 31: #include "out.h"
1.36 kristaps 32: #include "man.h"
1.1 kristaps 33: #include "term.h"
1.36 kristaps 34: #include "main.h"
1.1 kristaps 35:
1.116 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 */
1.1 kristaps 130: };
131:
132:
133:
1.31 kristaps 134: void
1.36 kristaps 135: terminal_man(void *arg, const struct man *man)
1.1 kristaps 136: {
1.36 kristaps 137: struct termp *p;
138: const struct man_node *n;
139: const struct man_meta *m;
140: struct mtermp mt;
141:
142: p = (struct termp *)arg;
143:
1.122 schwarze 144: if (0 == p->defindent)
145: p->defindent = 7;
146:
1.58 kristaps 147: p->overstep = 0;
1.65 joerg 148: p->maxrmargin = p->defrmargin;
1.77 kristaps 149: p->tabwidth = term_len(p, 5);
1.73 kristaps 150:
1.36 kristaps 151: if (NULL == p->symtab)
1.109 kristaps 152: p->symtab = mchars_alloc();
1.36 kristaps 153:
154: n = man_node(man);
155: m = man_meta(man);
1.1 kristaps 156:
1.75 schwarze 157: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 158: p->flags |= TERMP_NOSPACE;
1.19 kristaps 159:
1.116 schwarze 160: memset(&mt, 0, sizeof(struct mtermp));
161:
1.122 schwarze 162: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
163: mt.offset = term_len(p, p->defindent);
1.24 kristaps 164:
1.36 kristaps 165: if (n->child)
1.52 kristaps 166: print_man_nodelist(p, &mt, n->child, m);
1.73 kristaps 167:
168: term_end(p);
1.1 kristaps 169: }
170:
171:
1.77 kristaps 172: static size_t
173: a2height(const struct termp *p, const char *cp)
1.18 kristaps 174: {
1.40 kristaps 175: struct roffsu su;
1.18 kristaps 176:
1.77 kristaps 177: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 kristaps 178: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 179:
1.77 kristaps 180: return(term_vspan(p, &su));
1.18 kristaps 181: }
182:
183:
184: static int
1.77 kristaps 185: a2width(const struct termp *p, const char *cp)
1.38 kristaps 186: {
1.40 kristaps 187: struct roffsu su;
1.38 kristaps 188:
1.77 kristaps 189: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 190: return(-1);
1.40 kristaps 191:
1.77 kristaps 192: return((int)term_hspan(p, &su));
1.38 kristaps 193: }
194:
1.111 kristaps 195: /*
196: * Printing leading vertical space before a block.
197: * This is used for the paragraph macros.
198: * The rules are pretty simple, since there's very little nesting going
199: * on here. Basically, if we're the first within another block (SS/SH),
200: * then don't emit vertical space. If we are (RS), then do. If not the
201: * first, print it.
202: */
1.39 kristaps 203: static void
204: print_bvspace(struct termp *p, const struct man_node *n)
1.18 kristaps 205: {
1.111 kristaps 206:
1.39 kristaps 207: term_newln(p);
1.101 schwarze 208:
1.111 kristaps 209: if (n->body && n->body->child)
210: if (MAN_TBL == n->body->child->type)
211: return;
212:
213: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
214: if (NULL == n->prev)
215: return;
1.18 kristaps 216:
1.39 kristaps 217: term_vspace(p);
1.18 kristaps 218: }
219:
1.3 kristaps 220: /* ARGSUSED */
1.1 kristaps 221: static int
1.29 kristaps 222: pre_ign(DECL_ARGS)
223: {
224:
225: return(0);
226: }
227:
228:
229: /* ARGSUSED */
230: static int
1.1 kristaps 231: pre_I(DECL_ARGS)
232: {
233:
1.52 kristaps 234: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 235: return(1);
236: }
237:
238:
239: /* ARGSUSED */
1.3 kristaps 240: static int
1.84 kristaps 241: pre_literal(DECL_ARGS)
1.19 kristaps 242: {
243:
1.81 kristaps 244: term_newln(p);
1.88 kristaps 245:
246: if (MAN_nf == n->tok)
1.84 kristaps 247: mt->fl |= MANT_LITERAL;
1.88 kristaps 248: else
1.84 kristaps 249: mt->fl &= ~MANT_LITERAL;
250:
1.117 schwarze 251: /*
252: * Unlike .IP and .TP, .HP does not have a HEAD.
253: * So in case a second call to term_flushln() is needed,
254: * indentation has to be set up explicitly.
255: */
256: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.121 schwarze 257: p->offset = p->rmargin;
1.117 schwarze 258: p->rmargin = p->maxrmargin;
259: p->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);
260: p->flags |= TERMP_NOSPACE;
261: }
262:
1.99 schwarze 263: return(0);
1.19 kristaps 264: }
265:
266: /* ARGSUSED */
267: static int
1.88 kristaps 268: pre_alternate(DECL_ARGS)
1.3 kristaps 269: {
1.88 kristaps 270: enum termfont font[2];
271: const struct man_node *nn;
272: int savelit, i;
1.3 kristaps 273:
1.88 kristaps 274: switch (n->tok) {
275: case (MAN_RB):
276: font[0] = TERMFONT_NONE;
277: font[1] = TERMFONT_BOLD;
278: break;
279: case (MAN_RI):
280: font[0] = TERMFONT_NONE;
281: font[1] = TERMFONT_UNDER;
282: break;
283: case (MAN_BR):
284: font[0] = TERMFONT_BOLD;
285: font[1] = TERMFONT_NONE;
286: break;
287: case (MAN_BI):
288: font[0] = TERMFONT_BOLD;
289: font[1] = TERMFONT_UNDER;
290: break;
291: case (MAN_IR):
292: font[0] = TERMFONT_UNDER;
293: font[1] = TERMFONT_NONE;
294: break;
295: case (MAN_IB):
296: font[0] = TERMFONT_UNDER;
297: font[1] = TERMFONT_BOLD;
298: break;
299: default:
300: abort();
301: }
1.35 kristaps 302:
1.88 kristaps 303: savelit = MANT_LITERAL & mt->fl;
304: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 305:
1.88 kristaps 306: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
307: term_fontrepl(p, font[i]);
308: if (savelit && NULL == nn->next)
309: mt->fl |= MANT_LITERAL;
1.45 kristaps 310: print_man_node(p, mt, nn, m);
1.88 kristaps 311: if (nn->next)
1.4 kristaps 312: p->flags |= TERMP_NOSPACE;
1.3 kristaps 313: }
314:
315: return(0);
316: }
317:
318: /* ARGSUSED */
1.1 kristaps 319: static int
320: pre_B(DECL_ARGS)
321: {
322:
1.52 kristaps 323: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 324: return(1);
1.127 kristaps 325: }
326:
327: /* ARGSUSED */
328: static int
329: pre_OP(DECL_ARGS)
330: {
331:
332: term_word(p, "[");
333: p->flags |= TERMP_NOSPACE;
334:
335: if (NULL != (n = n->child)) {
336: term_fontrepl(p, TERMFONT_BOLD);
337: term_word(p, n->string);
338: }
339: if (NULL != n && NULL != n->next) {
340: term_fontrepl(p, TERMFONT_UNDER);
341: term_word(p, n->next->string);
342: }
343:
344: term_fontrepl(p, TERMFONT_NONE);
345: p->flags |= TERMP_NOSPACE;
346: term_word(p, "]");
347: return(0);
1.89 kristaps 348: }
349:
350: /* ARGSUSED */
351: static int
352: pre_ft(DECL_ARGS)
353: {
354: const char *cp;
355:
356: if (NULL == n->child) {
357: term_fontlast(p);
358: return(0);
359: }
360:
361: cp = n->child->string;
362: switch (*cp) {
363: case ('4'):
364: /* FALLTHROUGH */
365: case ('3'):
366: /* FALLTHROUGH */
367: case ('B'):
368: term_fontrepl(p, TERMFONT_BOLD);
369: break;
370: case ('2'):
371: /* FALLTHROUGH */
372: case ('I'):
373: term_fontrepl(p, TERMFONT_UNDER);
374: break;
375: case ('P'):
376: term_fontlast(p);
377: break;
378: case ('1'):
379: /* FALLTHROUGH */
380: case ('C'):
381: /* FALLTHROUGH */
382: case ('R'):
383: term_fontrepl(p, TERMFONT_NONE);
384: break;
385: default:
386: break;
387: }
388: return(0);
1.83 kristaps 389: }
390:
391: /* ARGSUSED */
392: static int
393: pre_in(DECL_ARGS)
394: {
395: int len, less;
396: size_t v;
397: const char *cp;
398:
399: term_newln(p);
400:
401: if (NULL == n->child) {
402: p->offset = mt->offset;
403: return(0);
404: }
405:
406: cp = n->child->string;
407: less = 0;
408:
409: if ('-' == *cp)
410: less = -1;
411: else if ('+' == *cp)
412: less = 1;
413: else
414: cp--;
415:
416: if ((len = a2width(p, ++cp)) < 0)
417: return(0);
418:
419: v = (size_t)len;
420:
421: if (less < 0)
422: p->offset -= p->offset > v ? v : p->offset;
423: else if (less > 0)
424: p->offset += v;
425: else
426: p->offset = v;
1.95 kristaps 427:
428: /* Don't let this creep beyond the right margin. */
429:
430: if (p->offset > p->rmargin)
431: p->offset = p->rmargin;
1.83 kristaps 432:
433: return(0);
1.1 kristaps 434: }
435:
436:
1.3 kristaps 437: /* ARGSUSED */
1.1 kristaps 438: static int
1.19 kristaps 439: pre_sp(DECL_ARGS)
440: {
1.77 kristaps 441: size_t i, len;
1.112 kristaps 442:
443: if ((NULL == n->prev && n->parent)) {
444: if (MAN_SS == n->parent->tok)
445: return(0);
446: if (MAN_SH == n->parent->tok)
447: return(0);
448: }
1.19 kristaps 449:
1.82 kristaps 450: switch (n->tok) {
451: case (MAN_br):
452: len = 0;
453: break;
454: default:
455: len = n->child ? a2height(p, n->child->string) : 1;
456: break;
457: }
1.38 kristaps 458:
1.19 kristaps 459: if (0 == len)
460: term_newln(p);
1.82 kristaps 461: for (i = 0; i < len; i++)
1.19 kristaps 462: term_vspace(p);
463:
1.15 kristaps 464: return(0);
465: }
466:
467:
468: /* ARGSUSED */
469: static int
1.19 kristaps 470: pre_HP(DECL_ARGS)
471: {
1.117 schwarze 472: size_t len, one;
1.24 kristaps 473: int ival;
474: const struct man_node *nn;
1.19 kristaps 475:
1.20 kristaps 476: switch (n->type) {
477: case (MAN_BLOCK):
1.39 kristaps 478: print_bvspace(p, n);
1.24 kristaps 479: return(1);
1.20 kristaps 480: case (MAN_BODY):
481: p->flags |= TERMP_NOBREAK;
482: p->flags |= TERMP_TWOSPACE;
483: break;
484: default:
485: return(0);
486: }
487:
1.116 schwarze 488: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 489: ival = -1;
490:
491: /* Calculate offset. */
492:
1.39 kristaps 493: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 494: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 495: len = (size_t)ival;
496:
1.117 schwarze 497: one = term_len(p, 1);
1.121 schwarze 498: if (len < one)
1.117 schwarze 499: len = one;
1.24 kristaps 500:
1.26 kristaps 501: p->offset = mt->offset;
502: p->rmargin = mt->offset + len;
1.24 kristaps 503:
504: if (ival >= 0)
1.116 schwarze 505: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 506:
1.19 kristaps 507: return(1);
508: }
509:
510:
511: /* ARGSUSED */
1.20 kristaps 512: static void
513: post_HP(DECL_ARGS)
514: {
515:
516: switch (n->type) {
1.24 kristaps 517: case (MAN_BLOCK):
518: term_flushln(p);
519: break;
1.20 kristaps 520: case (MAN_BODY):
521: term_flushln(p);
522: p->flags &= ~TERMP_NOBREAK;
523: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 524: p->offset = mt->offset;
1.20 kristaps 525: p->rmargin = p->maxrmargin;
526: break;
527: default:
528: break;
529: }
530: }
531:
532:
533: /* ARGSUSED */
1.19 kristaps 534: static int
1.1 kristaps 535: pre_PP(DECL_ARGS)
536: {
537:
1.19 kristaps 538: switch (n->type) {
539: case (MAN_BLOCK):
1.122 schwarze 540: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.39 kristaps 541: print_bvspace(p, n);
1.19 kristaps 542: break;
543: default:
1.26 kristaps 544: p->offset = mt->offset;
1.19 kristaps 545: break;
546: }
547:
1.87 kristaps 548: return(MAN_HEAD != n->type);
1.1 kristaps 549: }
550:
551:
1.3 kristaps 552: /* ARGSUSED */
1.1 kristaps 553: static int
1.4 kristaps 554: pre_IP(DECL_ARGS)
555: {
1.22 kristaps 556: const struct man_node *nn;
557: size_t len;
1.94 schwarze 558: int savelit, ival;
1.18 kristaps 559:
1.22 kristaps 560: switch (n->type) {
561: case (MAN_BODY):
562: p->flags |= TERMP_NOSPACE;
563: break;
564: case (MAN_HEAD):
565: p->flags |= TERMP_NOBREAK;
566: break;
1.23 kristaps 567: case (MAN_BLOCK):
1.39 kristaps 568: print_bvspace(p, n);
1.23 kristaps 569: /* FALLTHROUGH */
1.22 kristaps 570: default:
571: return(1);
572: }
1.18 kristaps 573:
1.116 schwarze 574: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 575: ival = -1;
1.4 kristaps 576:
1.94 schwarze 577: /* Calculate the offset from the optional second argument. */
1.22 kristaps 578: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 579: if (NULL != (nn = nn->next))
1.77 kristaps 580: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 581: len = (size_t)ival;
1.4 kristaps 582:
1.22 kristaps 583: switch (n->type) {
584: case (MAN_HEAD):
1.23 kristaps 585: /* Handle zero-width lengths. */
586: if (0 == len)
1.77 kristaps 587: len = term_len(p, 1);
1.23 kristaps 588:
1.26 kristaps 589: p->offset = mt->offset;
590: p->rmargin = mt->offset + len;
1.22 kristaps 591: if (ival < 0)
592: break;
1.18 kristaps 593:
1.24 kristaps 594: /* Set the saved left-margin. */
1.116 schwarze 595: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 596:
1.94 schwarze 597: savelit = MANT_LITERAL & mt->fl;
598: mt->fl &= ~MANT_LITERAL;
599:
600: if (n->child)
601: print_man_node(p, mt, n->child, m);
602:
603: if (savelit)
604: mt->fl |= MANT_LITERAL;
605:
1.22 kristaps 606: return(0);
1.23 kristaps 607: case (MAN_BODY):
1.26 kristaps 608: p->offset = mt->offset + len;
1.23 kristaps 609: p->rmargin = p->maxrmargin;
610: break;
1.22 kristaps 611: default:
612: break;
1.18 kristaps 613: }
614:
1.22 kristaps 615: return(1);
616: }
1.18 kristaps 617:
618:
1.22 kristaps 619: /* ARGSUSED */
620: static void
621: post_IP(DECL_ARGS)
622: {
1.4 kristaps 623:
1.22 kristaps 624: switch (n->type) {
625: case (MAN_HEAD):
626: term_flushln(p);
627: p->flags &= ~TERMP_NOBREAK;
628: p->rmargin = p->maxrmargin;
629: break;
630: case (MAN_BODY):
1.94 schwarze 631: term_newln(p);
1.22 kristaps 632: break;
633: default:
634: break;
635: }
1.4 kristaps 636: }
637:
638:
639: /* ARGSUSED */
640: static int
1.1 kristaps 641: pre_TP(DECL_ARGS)
642: {
1.23 kristaps 643: const struct man_node *nn;
644: size_t len;
1.94 schwarze 645: int savelit, ival;
1.1 kristaps 646:
1.21 kristaps 647: switch (n->type) {
648: case (MAN_HEAD):
649: p->flags |= TERMP_NOBREAK;
650: break;
651: case (MAN_BODY):
652: p->flags |= TERMP_NOSPACE;
1.23 kristaps 653: break;
654: case (MAN_BLOCK):
1.39 kristaps 655: print_bvspace(p, n);
1.23 kristaps 656: /* FALLTHROUGH */
657: default:
658: return(1);
659: }
660:
1.116 schwarze 661: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 662: ival = -1;
663:
664: /* Calculate offset. */
665:
1.116 schwarze 666: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 667: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 668: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 669: len = (size_t)ival;
670:
671: switch (n->type) {
672: case (MAN_HEAD):
673: /* Handle zero-length properly. */
674: if (0 == len)
1.77 kristaps 675: len = term_len(p, 1);
1.23 kristaps 676:
1.26 kristaps 677: p->offset = mt->offset;
678: p->rmargin = mt->offset + len;
1.23 kristaps 679:
1.94 schwarze 680: savelit = MANT_LITERAL & mt->fl;
681: mt->fl &= ~MANT_LITERAL;
682:
1.23 kristaps 683: /* Don't print same-line elements. */
1.94 schwarze 684: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 685: if (nn->line > n->line)
1.45 kristaps 686: print_man_node(p, mt, nn, m);
1.24 kristaps 687:
1.94 schwarze 688: if (savelit)
689: mt->fl |= MANT_LITERAL;
1.24 kristaps 690: if (ival >= 0)
1.116 schwarze 691: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 692:
1.23 kristaps 693: return(0);
694: case (MAN_BODY):
1.26 kristaps 695: p->offset = mt->offset + len;
1.23 kristaps 696: p->rmargin = p->maxrmargin;
1.21 kristaps 697: break;
698: default:
699: break;
700: }
1.16 kristaps 701:
1.21 kristaps 702: return(1);
703: }
1.1 kristaps 704:
705:
1.21 kristaps 706: /* ARGSUSED */
707: static void
708: post_TP(DECL_ARGS)
709: {
1.1 kristaps 710:
1.21 kristaps 711: switch (n->type) {
712: case (MAN_HEAD):
713: term_flushln(p);
714: p->flags &= ~TERMP_NOBREAK;
715: p->flags &= ~TERMP_TWOSPACE;
716: p->rmargin = p->maxrmargin;
717: break;
718: case (MAN_BODY):
1.94 schwarze 719: term_newln(p);
1.21 kristaps 720: break;
721: default:
722: break;
723: }
1.1 kristaps 724: }
725:
726:
1.3 kristaps 727: /* ARGSUSED */
1.1 kristaps 728: static int
729: pre_SS(DECL_ARGS)
730: {
731:
1.19 kristaps 732: switch (n->type) {
733: case (MAN_BLOCK):
1.113 kristaps 734: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 735: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
736: mt->offset = term_len(p, p->defindent);
1.24 kristaps 737: /* If following a prior empty `SS', no vspace. */
738: if (n->prev && MAN_SS == n->prev->tok)
739: if (NULL == n->prev->body->child)
740: break;
741: if (NULL == n->prev)
742: break;
743: term_vspace(p);
1.19 kristaps 744: break;
745: case (MAN_HEAD):
1.52 kristaps 746: term_fontrepl(p, TERMFONT_BOLD);
1.122 schwarze 747: p->offset = term_len(p, p->defindent/2);
1.19 kristaps 748: break;
1.24 kristaps 749: case (MAN_BODY):
1.26 kristaps 750: p->offset = mt->offset;
1.24 kristaps 751: break;
1.19 kristaps 752: default:
753: break;
754: }
755:
1.1 kristaps 756: return(1);
757: }
758:
759:
1.3 kristaps 760: /* ARGSUSED */
1.1 kristaps 761: static void
762: post_SS(DECL_ARGS)
763: {
764:
1.19 kristaps 765: switch (n->type) {
766: case (MAN_HEAD):
767: term_newln(p);
768: break;
1.24 kristaps 769: case (MAN_BODY):
770: term_newln(p);
771: break;
1.19 kristaps 772: default:
773: break;
774: }
1.1 kristaps 775: }
776:
777:
1.3 kristaps 778: /* ARGSUSED */
1.1 kristaps 779: static int
780: pre_SH(DECL_ARGS)
781: {
1.22 kristaps 782:
1.19 kristaps 783: switch (n->type) {
784: case (MAN_BLOCK):
1.113 kristaps 785: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 786: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
787: mt->offset = term_len(p, p->defindent);
1.22 kristaps 788: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 789: if (n->prev && MAN_SH == n->prev->tok)
790: if (NULL == n->prev->body->child)
791: break;
1.61 kristaps 792: /* If the first macro, no vspae. */
793: if (NULL == n->prev)
794: break;
1.19 kristaps 795: term_vspace(p);
796: break;
797: case (MAN_HEAD):
1.52 kristaps 798: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 799: p->offset = 0;
800: break;
801: case (MAN_BODY):
1.26 kristaps 802: p->offset = mt->offset;
1.19 kristaps 803: break;
804: default:
805: break;
806: }
1.1 kristaps 807:
808: return(1);
809: }
810:
811:
1.3 kristaps 812: /* ARGSUSED */
1.1 kristaps 813: static void
814: post_SH(DECL_ARGS)
815: {
816:
1.19 kristaps 817: switch (n->type) {
818: case (MAN_HEAD):
819: term_newln(p);
820: break;
821: case (MAN_BODY):
822: term_newln(p);
823: break;
824: default:
825: break;
826: }
1.1 kristaps 827: }
828:
1.26 kristaps 829: /* ARGSUSED */
830: static int
831: pre_RS(DECL_ARGS)
832: {
1.110 kristaps 833: int ival;
834: size_t sz;
1.26 kristaps 835:
836: switch (n->type) {
837: case (MAN_BLOCK):
838: term_newln(p);
839: return(1);
840: case (MAN_HEAD):
841: return(0);
842: default:
843: break;
844: }
845:
1.122 schwarze 846: sz = term_len(p, p->defindent);
1.26 kristaps 847:
1.110 kristaps 848: if (NULL != (n = n->parent->head->child))
849: if ((ival = a2width(p, n->string)) >= 0)
850: sz = (size_t)ival;
1.26 kristaps 851:
1.110 kristaps 852: mt->offset += sz;
1.119 schwarze 853: p->rmargin = p->maxrmargin;
854: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.26 kristaps 855:
1.116 schwarze 856: if (++mt->lmarginsz < MAXMARGINS)
857: mt->lmargincur = mt->lmarginsz;
858:
859: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 860: return(1);
861: }
862:
863: /* ARGSUSED */
864: static void
865: post_RS(DECL_ARGS)
866: {
1.110 kristaps 867: int ival;
868: size_t sz;
1.26 kristaps 869:
870: switch (n->type) {
871: case (MAN_BLOCK):
1.110 kristaps 872: return;
1.59 kristaps 873: case (MAN_HEAD):
1.110 kristaps 874: return;
1.26 kristaps 875: default:
876: term_newln(p);
877: break;
878: }
1.110 kristaps 879:
1.122 schwarze 880: sz = term_len(p, p->defindent);
1.110 kristaps 881:
882: if (NULL != (n = n->parent->head->child))
883: if ((ival = a2width(p, n->string)) >= 0)
884: sz = (size_t)ival;
885:
886: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
887: p->offset = mt->offset;
1.116 schwarze 888:
889: if (--mt->lmarginsz < MAXMARGINS)
890: mt->lmargincur = mt->lmarginsz;
1.26 kristaps 891: }
892:
1.1 kristaps 893: static void
1.45 kristaps 894: print_man_node(DECL_ARGS)
1.1 kristaps 895: {
1.65 joerg 896: size_t rm, rmax;
1.54 kristaps 897: int c;
1.1 kristaps 898:
899: switch (n->type) {
900: case(MAN_TEXT):
1.97 kristaps 901: /*
902: * If we have a blank line, output a vertical space.
903: * If we have a space as the first character, break
904: * before printing the line's data.
905: */
1.96 kristaps 906: if ('\0' == *n->string) {
1.4 kristaps 907: term_vspace(p);
1.98 schwarze 908: return;
1.97 kristaps 909: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 910: term_newln(p);
1.54 kristaps 911:
1.4 kristaps 912: term_word(p, n->string);
1.52 kristaps 913:
1.97 kristaps 914: /*
915: * If we're in a literal context, make sure that words
916: * togehter on the same line stay together. This is a
917: * POST-printing call, so we check the NEXT word. Since
918: * -man doesn't have nested macros, we don't need to be
919: * more specific than this.
920: */
1.117 schwarze 921: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
1.97 kristaps 922: (NULL == n->next ||
923: n->next->line > n->line)) {
1.65 joerg 924: rm = p->rmargin;
925: rmax = p->maxrmargin;
1.60 kristaps 926: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.19 kristaps 927: p->flags |= TERMP_NOSPACE;
928: term_flushln(p);
1.65 joerg 929: p->rmargin = rm;
930: p->maxrmargin = rmax;
1.19 kristaps 931: }
1.100 schwarze 932:
933: if (MAN_EOS & n->flags)
934: p->flags |= TERMP_SENTENCE;
1.102 kristaps 935: return;
936: case (MAN_EQN):
1.115 kristaps 937: term_eqn(p, n->eqn);
1.97 kristaps 938: return;
1.91 kristaps 939: case (MAN_TBL):
1.97 kristaps 940: /*
941: * Tables are preceded by a newline. Then process a
942: * table line, which will cause line termination,
943: */
1.93 kristaps 944: if (TBL_SPAN_FIRST & n->span->flags)
945: term_newln(p);
1.92 kristaps 946: term_tbl(p, n->span);
1.97 kristaps 947: return;
1.1 kristaps 948: default:
949: break;
950: }
951:
1.97 kristaps 952: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
953: term_fontrepl(p, TERMFONT_NONE);
954:
955: c = 1;
956: if (termacts[n->tok].pre)
957: c = (*termacts[n->tok].pre)(p, mt, n, m);
958:
1.1 kristaps 959: if (c && n->child)
1.52 kristaps 960: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 961:
1.97 kristaps 962: if (termacts[n->tok].post)
963: (*termacts[n->tok].post)(p, mt, n, m);
964: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
965: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 966:
967: if (MAN_EOS & n->flags)
968: p->flags |= TERMP_SENTENCE;
1.1 kristaps 969: }
970:
971:
972: static void
1.52 kristaps 973: print_man_nodelist(DECL_ARGS)
1.1 kristaps 974: {
1.19 kristaps 975:
1.45 kristaps 976: print_man_node(p, mt, n, m);
1.1 kristaps 977: if ( ! n->next)
978: return;
1.52 kristaps 979: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 980: }
981:
982:
1.31 kristaps 983: static void
1.73 kristaps 984: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 985: {
1.123 schwarze 986: char title[BUFSIZ];
987: size_t datelen;
1.73 kristaps 988: const struct man_meta *meta;
989:
990: meta = (const struct man_meta *)arg;
1.125 schwarze 991: assert(meta->title);
992: assert(meta->msec);
993: assert(meta->date);
1.1 kristaps 994:
1.52 kristaps 995: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 996:
1.69 joerg 997: term_vspace(p);
1.126 schwarze 998:
999: /*
1000: * Temporary, undocumented option to imitate mdoc(7) output.
1001: * In the bottom right corner, use the source instead of
1002: * the title.
1003: */
1004:
1005: if ( ! p->mdocstyle) {
1006: term_vspace(p);
1007: term_vspace(p);
1008: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1009: } else if (meta->source) {
1010: strlcpy(title, meta->source, BUFSIZ);
1011: } else {
1012: title[0] = '\0';
1013: }
1.125 schwarze 1014: datelen = term_strlen(p, meta->date);
1.1 kristaps 1015:
1.126 schwarze 1016: /* Bottom left corner: manual source. */
1017:
1.1 kristaps 1018: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1019: p->offset = 0;
1.123 schwarze 1020: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1021:
1022: if (meta->source)
1023: term_word(p, meta->source);
1024: term_flushln(p);
1025:
1.126 schwarze 1026: /* At the bottom in the middle: manual date. */
1027:
1.117 schwarze 1028: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1029: p->offset = p->rmargin;
1.123 schwarze 1030: p->rmargin = p->maxrmargin - term_strlen(p, title);
1031: if (p->offset + datelen >= p->rmargin)
1032: p->rmargin = p->offset + datelen;
1033:
1.125 schwarze 1034: term_word(p, meta->date);
1.123 schwarze 1035: term_flushln(p);
1036:
1.126 schwarze 1037: /* Bottom right corner: manual title and section. */
1038:
1.123 schwarze 1039: p->flags &= ~TERMP_NOBREAK;
1040: p->flags |= TERMP_NOSPACE;
1041: p->offset = p->rmargin;
1.1 kristaps 1042: p->rmargin = p->maxrmargin;
1043:
1.123 schwarze 1044: term_word(p, title);
1.1 kristaps 1045: term_flushln(p);
1046: }
1047:
1048:
1.31 kristaps 1049: static void
1.73 kristaps 1050: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1051: {
1.46 kristaps 1052: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1053: size_t buflen, titlen;
1.73 kristaps 1054: const struct man_meta *m;
1055:
1056: m = (const struct man_meta *)arg;
1.125 schwarze 1057: assert(m->title);
1058: assert(m->msec);
1.1 kristaps 1059:
1.46 kristaps 1060: if (m->vol)
1061: strlcpy(buf, m->vol, BUFSIZ);
1.126 schwarze 1062: else
1063: buf[0] = '\0';
1.77 kristaps 1064: buflen = term_strlen(p, buf);
1.1 kristaps 1065:
1.126 schwarze 1066: /* Top left corner: manual title and section. */
1067:
1.125 schwarze 1068: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.77 kristaps 1069: titlen = term_strlen(p, title);
1.1 kristaps 1070:
1.118 schwarze 1071: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1072: p->offset = 0;
1.57 kristaps 1073: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1074: (p->maxrmargin -
1075: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1076: p->maxrmargin - buflen;
1.1 kristaps 1077:
1078: term_word(p, title);
1079: term_flushln(p);
1080:
1.126 schwarze 1081: /* At the top in the middle: manual volume. */
1082:
1.117 schwarze 1083: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1084: p->offset = p->rmargin;
1.57 kristaps 1085: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1086: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1087:
1088: term_word(p, buf);
1089: term_flushln(p);
1090:
1.126 schwarze 1091: /* Top right corner: title and section, again. */
1092:
1.1 kristaps 1093: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1094: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1095: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1096: p->offset = p->rmargin;
1097: p->rmargin = p->maxrmargin;
1098: term_word(p, title);
1099: term_flushln(p);
1100: }
1.1 kristaps 1101:
1.118 schwarze 1102: p->flags &= ~TERMP_NOSPACE;
1103: p->offset = 0;
1.1 kristaps 1104: p->rmargin = p->maxrmargin;
1.61 kristaps 1105:
1.62 kristaps 1106: /*
1.126 schwarze 1107: * Groff prints three blank lines before the content.
1108: * Do the same, except in the temporary, undocumented
1109: * mode imitating mdoc(7) output.
1.62 kristaps 1110: */
1111:
1.61 kristaps 1112: term_vspace(p);
1.126 schwarze 1113: if ( ! p->mdocstyle) {
1114: term_vspace(p);
1115: term_vspace(p);
1116: }
1.1 kristaps 1117: }
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