Annotation of mandoc/man_term.c, Revision 1.121
1.121 ! schwarze 1: /* $Id: man_term.c,v 1.120 2011/09/20 14:20:48 schwarze Exp $ */
1.1 kristaps 2: /*
1.98 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 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 INDENT 7 /* fixed-width char full-indent */
37: #define HALFINDENT 3 /* fixed-width char half-indent */
38: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.18 kristaps 39:
1.44 kristaps 40: /* FIXME: have PD set the default vspace width. */
41:
1.24 kristaps 42: struct mtermp {
43: int fl;
1.19 kristaps 44: #define MANT_LITERAL (1 << 0)
1.116 schwarze 45: size_t lmargin[MAXMARGINS]; /* margins (incl. visible page) */
46: int lmargincur; /* index of current margin */
47: int lmarginsz; /* actual number of nested margins */
48: size_t offset; /* default offset to visible page */
1.24 kristaps 49: };
1.19 kristaps 50:
1.1 kristaps 51: #define DECL_ARGS struct termp *p, \
1.24 kristaps 52: struct mtermp *mt, \
1.1 kristaps 53: const struct man_node *n, \
54: const struct man_meta *m
55:
56: struct termact {
57: int (*pre)(DECL_ARGS);
58: void (*post)(DECL_ARGS);
1.56 kristaps 59: int flags;
60: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 61: };
62:
1.77 kristaps 63: static int a2width(const struct termp *, const char *);
64: static size_t a2height(const struct termp *, const char *);
1.39 kristaps 65:
1.52 kristaps 66: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 67: static void print_man_node(DECL_ARGS);
1.74 kristaps 68: static void print_man_head(struct termp *, const void *);
1.73 kristaps 69: static void print_man_foot(struct termp *, const void *);
1.39 kristaps 70: static void print_bvspace(struct termp *,
71: const struct man_node *);
72:
1.88 kristaps 73: static int pre_alternate(DECL_ARGS);
1.1 kristaps 74: static int pre_B(DECL_ARGS);
1.19 kristaps 75: static int pre_HP(DECL_ARGS);
1.1 kristaps 76: static int pre_I(DECL_ARGS);
1.4 kristaps 77: static int pre_IP(DECL_ARGS);
1.1 kristaps 78: static int pre_PP(DECL_ARGS);
1.26 kristaps 79: static int pre_RS(DECL_ARGS);
1.1 kristaps 80: static int pre_SH(DECL_ARGS);
81: static int pre_SS(DECL_ARGS);
82: static int pre_TP(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);
1.89 kristaps 87: static int pre_ft(DECL_ARGS);
1.1 kristaps 88:
1.22 kristaps 89: static void post_IP(DECL_ARGS);
1.20 kristaps 90: static void post_HP(DECL_ARGS);
1.26 kristaps 91: static void post_RS(DECL_ARGS);
1.1 kristaps 92: static void post_SH(DECL_ARGS);
93: static void post_SS(DECL_ARGS);
1.21 kristaps 94: static void post_TP(DECL_ARGS);
1.1 kristaps 95:
1.32 kristaps 96: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 97: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 98: { NULL, NULL, 0 }, /* TH */
99: { pre_SH, post_SH, 0 }, /* SH */
100: { pre_SS, post_SS, 0 }, /* SS */
101: { pre_TP, post_TP, 0 }, /* TP */
102: { pre_PP, NULL, 0 }, /* LP */
103: { pre_PP, NULL, 0 }, /* PP */
104: { pre_PP, NULL, 0 }, /* P */
105: { pre_IP, post_IP, 0 }, /* IP */
106: { pre_HP, post_HP, 0 }, /* HP */
107: { NULL, NULL, 0 }, /* SM */
108: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 109: { pre_alternate, NULL, 0 }, /* BI */
110: { pre_alternate, NULL, 0 }, /* IB */
111: { pre_alternate, NULL, 0 }, /* BR */
112: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 113: { NULL, NULL, 0 }, /* R */
114: { pre_B, NULL, 0 }, /* B */
115: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 116: { pre_alternate, NULL, 0 }, /* IR */
117: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 118: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 119: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 120: { pre_literal, NULL, 0 }, /* nf */
121: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 122: { NULL, NULL, 0 }, /* RE */
123: { pre_RS, post_RS, 0 }, /* RS */
124: { pre_ign, NULL, 0 }, /* DT */
125: { pre_ign, NULL, 0 }, /* UC */
126: { pre_ign, NULL, 0 }, /* PD */
1.70 joerg 127: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 128: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 129: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
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:
1.58 kristaps 144: p->overstep = 0;
1.65 joerg 145: p->maxrmargin = p->defrmargin;
1.77 kristaps 146: p->tabwidth = term_len(p, 5);
1.73 kristaps 147:
1.36 kristaps 148: if (NULL == p->symtab)
1.109 kristaps 149: p->symtab = mchars_alloc();
1.36 kristaps 150:
151: n = man_node(man);
152: m = man_meta(man);
1.1 kristaps 153:
1.75 schwarze 154: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 155: p->flags |= TERMP_NOSPACE;
1.19 kristaps 156:
1.116 schwarze 157: memset(&mt, 0, sizeof(struct mtermp));
158:
159: mt.lmargin[mt.lmargincur] = term_len(p, INDENT);
1.77 kristaps 160: mt.offset = term_len(p, INDENT);
1.24 kristaps 161:
1.36 kristaps 162: if (n->child)
1.52 kristaps 163: print_man_nodelist(p, &mt, n->child, m);
1.73 kristaps 164:
165: term_end(p);
1.1 kristaps 166: }
167:
168:
1.77 kristaps 169: static size_t
170: a2height(const struct termp *p, const char *cp)
1.18 kristaps 171: {
1.40 kristaps 172: struct roffsu su;
1.18 kristaps 173:
1.77 kristaps 174: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 kristaps 175: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 176:
1.77 kristaps 177: return(term_vspan(p, &su));
1.18 kristaps 178: }
179:
180:
181: static int
1.77 kristaps 182: a2width(const struct termp *p, const char *cp)
1.38 kristaps 183: {
1.40 kristaps 184: struct roffsu su;
1.38 kristaps 185:
1.77 kristaps 186: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 187: return(-1);
1.40 kristaps 188:
1.77 kristaps 189: return((int)term_hspan(p, &su));
1.38 kristaps 190: }
191:
1.111 kristaps 192: /*
193: * Printing leading vertical space before a block.
194: * This is used for the paragraph macros.
195: * The rules are pretty simple, since there's very little nesting going
196: * on here. Basically, if we're the first within another block (SS/SH),
197: * then don't emit vertical space. If we are (RS), then do. If not the
198: * first, print it.
199: */
1.39 kristaps 200: static void
201: print_bvspace(struct termp *p, const struct man_node *n)
1.18 kristaps 202: {
1.111 kristaps 203:
1.39 kristaps 204: term_newln(p);
1.101 schwarze 205:
1.111 kristaps 206: if (n->body && n->body->child)
207: if (MAN_TBL == n->body->child->type)
208: return;
209:
210: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
211: if (NULL == n->prev)
212: return;
1.18 kristaps 213:
1.39 kristaps 214: term_vspace(p);
1.18 kristaps 215: }
216:
1.3 kristaps 217: /* ARGSUSED */
1.1 kristaps 218: static int
1.29 kristaps 219: pre_ign(DECL_ARGS)
220: {
221:
222: return(0);
223: }
224:
225:
226: /* ARGSUSED */
227: static int
1.1 kristaps 228: pre_I(DECL_ARGS)
229: {
230:
1.52 kristaps 231: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 232: return(1);
233: }
234:
235:
236: /* ARGSUSED */
1.3 kristaps 237: static int
1.84 kristaps 238: pre_literal(DECL_ARGS)
1.19 kristaps 239: {
240:
1.81 kristaps 241: term_newln(p);
1.88 kristaps 242:
243: if (MAN_nf == n->tok)
1.84 kristaps 244: mt->fl |= MANT_LITERAL;
1.88 kristaps 245: else
1.84 kristaps 246: mt->fl &= ~MANT_LITERAL;
247:
1.117 schwarze 248: /*
249: * Unlike .IP and .TP, .HP does not have a HEAD.
250: * So in case a second call to term_flushln() is needed,
251: * indentation has to be set up explicitly.
252: */
253: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.121 ! schwarze 254: p->offset = p->rmargin;
1.117 schwarze 255: p->rmargin = p->maxrmargin;
256: p->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);
257: p->flags |= TERMP_NOSPACE;
258: }
259:
1.99 schwarze 260: return(0);
1.19 kristaps 261: }
262:
263: /* ARGSUSED */
264: static int
1.88 kristaps 265: pre_alternate(DECL_ARGS)
1.3 kristaps 266: {
1.88 kristaps 267: enum termfont font[2];
268: const struct man_node *nn;
269: int savelit, i;
1.3 kristaps 270:
1.88 kristaps 271: switch (n->tok) {
272: case (MAN_RB):
273: font[0] = TERMFONT_NONE;
274: font[1] = TERMFONT_BOLD;
275: break;
276: case (MAN_RI):
277: font[0] = TERMFONT_NONE;
278: font[1] = TERMFONT_UNDER;
279: break;
280: case (MAN_BR):
281: font[0] = TERMFONT_BOLD;
282: font[1] = TERMFONT_NONE;
283: break;
284: case (MAN_BI):
285: font[0] = TERMFONT_BOLD;
286: font[1] = TERMFONT_UNDER;
287: break;
288: case (MAN_IR):
289: font[0] = TERMFONT_UNDER;
290: font[1] = TERMFONT_NONE;
291: break;
292: case (MAN_IB):
293: font[0] = TERMFONT_UNDER;
294: font[1] = TERMFONT_BOLD;
295: break;
296: default:
297: abort();
298: }
1.35 kristaps 299:
1.88 kristaps 300: savelit = MANT_LITERAL & mt->fl;
301: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 302:
1.88 kristaps 303: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
304: term_fontrepl(p, font[i]);
305: if (savelit && NULL == nn->next)
306: mt->fl |= MANT_LITERAL;
1.45 kristaps 307: print_man_node(p, mt, nn, m);
1.88 kristaps 308: if (nn->next)
1.4 kristaps 309: p->flags |= TERMP_NOSPACE;
1.3 kristaps 310: }
311:
312: return(0);
313: }
314:
315: /* ARGSUSED */
1.1 kristaps 316: static int
317: pre_B(DECL_ARGS)
318: {
319:
1.52 kristaps 320: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 321: return(1);
1.89 kristaps 322: }
323:
324: /* ARGSUSED */
325: static int
326: pre_ft(DECL_ARGS)
327: {
328: const char *cp;
329:
330: if (NULL == n->child) {
331: term_fontlast(p);
332: return(0);
333: }
334:
335: cp = n->child->string;
336: switch (*cp) {
337: case ('4'):
338: /* FALLTHROUGH */
339: case ('3'):
340: /* FALLTHROUGH */
341: case ('B'):
342: term_fontrepl(p, TERMFONT_BOLD);
343: break;
344: case ('2'):
345: /* FALLTHROUGH */
346: case ('I'):
347: term_fontrepl(p, TERMFONT_UNDER);
348: break;
349: case ('P'):
350: term_fontlast(p);
351: break;
352: case ('1'):
353: /* FALLTHROUGH */
354: case ('C'):
355: /* FALLTHROUGH */
356: case ('R'):
357: term_fontrepl(p, TERMFONT_NONE);
358: break;
359: default:
360: break;
361: }
362: return(0);
1.83 kristaps 363: }
364:
365: /* ARGSUSED */
366: static int
367: pre_in(DECL_ARGS)
368: {
369: int len, less;
370: size_t v;
371: const char *cp;
372:
373: term_newln(p);
374:
375: if (NULL == n->child) {
376: p->offset = mt->offset;
377: return(0);
378: }
379:
380: cp = n->child->string;
381: less = 0;
382:
383: if ('-' == *cp)
384: less = -1;
385: else if ('+' == *cp)
386: less = 1;
387: else
388: cp--;
389:
390: if ((len = a2width(p, ++cp)) < 0)
391: return(0);
392:
393: v = (size_t)len;
394:
395: if (less < 0)
396: p->offset -= p->offset > v ? v : p->offset;
397: else if (less > 0)
398: p->offset += v;
399: else
400: p->offset = v;
1.95 kristaps 401:
402: /* Don't let this creep beyond the right margin. */
403:
404: if (p->offset > p->rmargin)
405: p->offset = p->rmargin;
1.83 kristaps 406:
407: return(0);
1.1 kristaps 408: }
409:
410:
1.3 kristaps 411: /* ARGSUSED */
1.1 kristaps 412: static int
1.19 kristaps 413: pre_sp(DECL_ARGS)
414: {
1.77 kristaps 415: size_t i, len;
1.112 kristaps 416:
417: if ((NULL == n->prev && n->parent)) {
418: if (MAN_SS == n->parent->tok)
419: return(0);
420: if (MAN_SH == n->parent->tok)
421: return(0);
422: }
1.19 kristaps 423:
1.82 kristaps 424: switch (n->tok) {
425: case (MAN_br):
426: len = 0;
427: break;
428: default:
429: len = n->child ? a2height(p, n->child->string) : 1;
430: break;
431: }
1.38 kristaps 432:
1.19 kristaps 433: if (0 == len)
434: term_newln(p);
1.82 kristaps 435: for (i = 0; i < len; i++)
1.19 kristaps 436: term_vspace(p);
437:
1.15 kristaps 438: return(0);
439: }
440:
441:
442: /* ARGSUSED */
443: static int
1.19 kristaps 444: pre_HP(DECL_ARGS)
445: {
1.117 schwarze 446: size_t len, one;
1.24 kristaps 447: int ival;
448: const struct man_node *nn;
1.19 kristaps 449:
1.20 kristaps 450: switch (n->type) {
451: case (MAN_BLOCK):
1.39 kristaps 452: print_bvspace(p, n);
1.24 kristaps 453: return(1);
1.20 kristaps 454: case (MAN_BODY):
455: p->flags |= TERMP_NOBREAK;
456: p->flags |= TERMP_TWOSPACE;
457: break;
458: default:
459: return(0);
460: }
461:
1.116 schwarze 462: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 463: ival = -1;
464:
465: /* Calculate offset. */
466:
1.39 kristaps 467: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 468: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 469: len = (size_t)ival;
470:
1.117 schwarze 471: one = term_len(p, 1);
1.121 ! schwarze 472: if (len < one)
1.117 schwarze 473: len = one;
1.24 kristaps 474:
1.26 kristaps 475: p->offset = mt->offset;
476: p->rmargin = mt->offset + len;
1.24 kristaps 477:
478: if (ival >= 0)
1.116 schwarze 479: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 480:
1.19 kristaps 481: return(1);
482: }
483:
484:
485: /* ARGSUSED */
1.20 kristaps 486: static void
487: post_HP(DECL_ARGS)
488: {
489:
490: switch (n->type) {
1.24 kristaps 491: case (MAN_BLOCK):
492: term_flushln(p);
493: break;
1.20 kristaps 494: case (MAN_BODY):
495: term_flushln(p);
496: p->flags &= ~TERMP_NOBREAK;
497: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 498: p->offset = mt->offset;
1.20 kristaps 499: p->rmargin = p->maxrmargin;
500: break;
501: default:
502: break;
503: }
504: }
505:
506:
507: /* ARGSUSED */
1.19 kristaps 508: static int
1.1 kristaps 509: pre_PP(DECL_ARGS)
510: {
511:
1.19 kristaps 512: switch (n->type) {
513: case (MAN_BLOCK):
1.116 schwarze 514: mt->lmargin[mt->lmargincur] = term_len(p, INDENT);
1.39 kristaps 515: print_bvspace(p, n);
1.19 kristaps 516: break;
517: default:
1.26 kristaps 518: p->offset = mt->offset;
1.19 kristaps 519: break;
520: }
521:
1.87 kristaps 522: return(MAN_HEAD != n->type);
1.1 kristaps 523: }
524:
525:
1.3 kristaps 526: /* ARGSUSED */
1.1 kristaps 527: static int
1.4 kristaps 528: pre_IP(DECL_ARGS)
529: {
1.22 kristaps 530: const struct man_node *nn;
531: size_t len;
1.94 schwarze 532: int savelit, ival;
1.18 kristaps 533:
1.22 kristaps 534: switch (n->type) {
535: case (MAN_BODY):
536: p->flags |= TERMP_NOSPACE;
537: break;
538: case (MAN_HEAD):
539: p->flags |= TERMP_NOBREAK;
540: break;
1.23 kristaps 541: case (MAN_BLOCK):
1.39 kristaps 542: print_bvspace(p, n);
1.23 kristaps 543: /* FALLTHROUGH */
1.22 kristaps 544: default:
545: return(1);
546: }
1.18 kristaps 547:
1.116 schwarze 548: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 549: ival = -1;
1.4 kristaps 550:
1.94 schwarze 551: /* Calculate the offset from the optional second argument. */
1.22 kristaps 552: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 553: if (NULL != (nn = nn->next))
1.77 kristaps 554: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 555: len = (size_t)ival;
1.4 kristaps 556:
1.22 kristaps 557: switch (n->type) {
558: case (MAN_HEAD):
1.23 kristaps 559: /* Handle zero-width lengths. */
560: if (0 == len)
1.77 kristaps 561: len = term_len(p, 1);
1.23 kristaps 562:
1.26 kristaps 563: p->offset = mt->offset;
564: p->rmargin = mt->offset + len;
1.22 kristaps 565: if (ival < 0)
566: break;
1.18 kristaps 567:
1.24 kristaps 568: /* Set the saved left-margin. */
1.116 schwarze 569: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 570:
1.94 schwarze 571: savelit = MANT_LITERAL & mt->fl;
572: mt->fl &= ~MANT_LITERAL;
573:
574: if (n->child)
575: print_man_node(p, mt, n->child, m);
576:
577: if (savelit)
578: mt->fl |= MANT_LITERAL;
579:
1.22 kristaps 580: return(0);
1.23 kristaps 581: case (MAN_BODY):
1.26 kristaps 582: p->offset = mt->offset + len;
1.23 kristaps 583: p->rmargin = p->maxrmargin;
584: break;
1.22 kristaps 585: default:
586: break;
1.18 kristaps 587: }
588:
1.22 kristaps 589: return(1);
590: }
1.18 kristaps 591:
592:
1.22 kristaps 593: /* ARGSUSED */
594: static void
595: post_IP(DECL_ARGS)
596: {
1.4 kristaps 597:
1.22 kristaps 598: switch (n->type) {
599: case (MAN_HEAD):
600: term_flushln(p);
601: p->flags &= ~TERMP_NOBREAK;
602: p->rmargin = p->maxrmargin;
603: break;
604: case (MAN_BODY):
1.94 schwarze 605: term_newln(p);
1.22 kristaps 606: break;
607: default:
608: break;
609: }
1.4 kristaps 610: }
611:
612:
613: /* ARGSUSED */
614: static int
1.1 kristaps 615: pre_TP(DECL_ARGS)
616: {
1.23 kristaps 617: const struct man_node *nn;
618: size_t len;
1.94 schwarze 619: int savelit, ival;
1.1 kristaps 620:
1.21 kristaps 621: switch (n->type) {
622: case (MAN_HEAD):
623: p->flags |= TERMP_NOBREAK;
624: break;
625: case (MAN_BODY):
626: p->flags |= TERMP_NOSPACE;
1.23 kristaps 627: break;
628: case (MAN_BLOCK):
1.39 kristaps 629: print_bvspace(p, n);
1.23 kristaps 630: /* FALLTHROUGH */
631: default:
632: return(1);
633: }
634:
1.116 schwarze 635: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 636: ival = -1;
637:
638: /* Calculate offset. */
639:
1.116 schwarze 640: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 641: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 642: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 643: len = (size_t)ival;
644:
645: switch (n->type) {
646: case (MAN_HEAD):
647: /* Handle zero-length properly. */
648: if (0 == len)
1.77 kristaps 649: len = term_len(p, 1);
1.23 kristaps 650:
1.26 kristaps 651: p->offset = mt->offset;
652: p->rmargin = mt->offset + len;
1.23 kristaps 653:
1.94 schwarze 654: savelit = MANT_LITERAL & mt->fl;
655: mt->fl &= ~MANT_LITERAL;
656:
1.23 kristaps 657: /* Don't print same-line elements. */
1.94 schwarze 658: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 659: if (nn->line > n->line)
1.45 kristaps 660: print_man_node(p, mt, nn, m);
1.24 kristaps 661:
1.94 schwarze 662: if (savelit)
663: mt->fl |= MANT_LITERAL;
1.24 kristaps 664: if (ival >= 0)
1.116 schwarze 665: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 666:
1.23 kristaps 667: return(0);
668: case (MAN_BODY):
1.26 kristaps 669: p->offset = mt->offset + len;
1.23 kristaps 670: p->rmargin = p->maxrmargin;
1.21 kristaps 671: break;
672: default:
673: break;
674: }
1.16 kristaps 675:
1.21 kristaps 676: return(1);
677: }
1.1 kristaps 678:
679:
1.21 kristaps 680: /* ARGSUSED */
681: static void
682: post_TP(DECL_ARGS)
683: {
1.1 kristaps 684:
1.21 kristaps 685: switch (n->type) {
686: case (MAN_HEAD):
687: term_flushln(p);
688: p->flags &= ~TERMP_NOBREAK;
689: p->flags &= ~TERMP_TWOSPACE;
690: p->rmargin = p->maxrmargin;
691: break;
692: case (MAN_BODY):
1.94 schwarze 693: term_newln(p);
1.21 kristaps 694: break;
695: default:
696: break;
697: }
1.1 kristaps 698: }
699:
700:
1.3 kristaps 701: /* ARGSUSED */
1.1 kristaps 702: static int
703: pre_SS(DECL_ARGS)
704: {
705:
1.19 kristaps 706: switch (n->type) {
707: case (MAN_BLOCK):
1.113 kristaps 708: mt->fl &= ~MANT_LITERAL;
1.116 schwarze 709: mt->lmargin[mt->lmargincur] = term_len(p, INDENT);
1.77 kristaps 710: mt->offset = term_len(p, INDENT);
1.24 kristaps 711: /* If following a prior empty `SS', no vspace. */
712: if (n->prev && MAN_SS == n->prev->tok)
713: if (NULL == n->prev->body->child)
714: break;
715: if (NULL == n->prev)
716: break;
717: term_vspace(p);
1.19 kristaps 718: break;
719: case (MAN_HEAD):
1.52 kristaps 720: term_fontrepl(p, TERMFONT_BOLD);
1.77 kristaps 721: p->offset = term_len(p, HALFINDENT);
1.19 kristaps 722: break;
1.24 kristaps 723: case (MAN_BODY):
1.26 kristaps 724: p->offset = mt->offset;
1.24 kristaps 725: break;
1.19 kristaps 726: default:
727: break;
728: }
729:
1.1 kristaps 730: return(1);
731: }
732:
733:
1.3 kristaps 734: /* ARGSUSED */
1.1 kristaps 735: static void
736: post_SS(DECL_ARGS)
737: {
738:
1.19 kristaps 739: switch (n->type) {
740: case (MAN_HEAD):
741: term_newln(p);
742: break;
1.24 kristaps 743: case (MAN_BODY):
744: term_newln(p);
745: break;
1.19 kristaps 746: default:
747: break;
748: }
1.1 kristaps 749: }
750:
751:
1.3 kristaps 752: /* ARGSUSED */
1.1 kristaps 753: static int
754: pre_SH(DECL_ARGS)
755: {
1.22 kristaps 756:
1.19 kristaps 757: switch (n->type) {
758: case (MAN_BLOCK):
1.113 kristaps 759: mt->fl &= ~MANT_LITERAL;
1.116 schwarze 760: mt->lmargin[mt->lmargincur] = term_len(p, INDENT);
1.77 kristaps 761: mt->offset = term_len(p, INDENT);
1.22 kristaps 762: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 763: if (n->prev && MAN_SH == n->prev->tok)
764: if (NULL == n->prev->body->child)
765: break;
1.61 kristaps 766: /* If the first macro, no vspae. */
767: if (NULL == n->prev)
768: break;
1.19 kristaps 769: term_vspace(p);
770: break;
771: case (MAN_HEAD):
1.52 kristaps 772: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 773: p->offset = 0;
774: break;
775: case (MAN_BODY):
1.26 kristaps 776: p->offset = mt->offset;
1.19 kristaps 777: break;
778: default:
779: break;
780: }
1.1 kristaps 781:
782: return(1);
783: }
784:
785:
1.3 kristaps 786: /* ARGSUSED */
1.1 kristaps 787: static void
788: post_SH(DECL_ARGS)
789: {
790:
1.19 kristaps 791: switch (n->type) {
792: case (MAN_HEAD):
793: term_newln(p);
794: break;
795: case (MAN_BODY):
796: term_newln(p);
797: break;
798: default:
799: break;
800: }
1.1 kristaps 801: }
802:
1.26 kristaps 803: /* ARGSUSED */
804: static int
805: pre_RS(DECL_ARGS)
806: {
1.110 kristaps 807: int ival;
808: size_t sz;
1.26 kristaps 809:
810: switch (n->type) {
811: case (MAN_BLOCK):
812: term_newln(p);
813: return(1);
814: case (MAN_HEAD):
815: return(0);
816: default:
817: break;
818: }
819:
1.110 kristaps 820: sz = term_len(p, INDENT);
1.26 kristaps 821:
1.110 kristaps 822: if (NULL != (n = n->parent->head->child))
823: if ((ival = a2width(p, n->string)) >= 0)
824: sz = (size_t)ival;
1.26 kristaps 825:
1.110 kristaps 826: mt->offset += sz;
1.119 schwarze 827: p->rmargin = p->maxrmargin;
828: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.26 kristaps 829:
1.116 schwarze 830: if (++mt->lmarginsz < MAXMARGINS)
831: mt->lmargincur = mt->lmarginsz;
832:
833: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 834: return(1);
835: }
836:
837: /* ARGSUSED */
838: static void
839: post_RS(DECL_ARGS)
840: {
1.110 kristaps 841: int ival;
842: size_t sz;
1.26 kristaps 843:
844: switch (n->type) {
845: case (MAN_BLOCK):
1.110 kristaps 846: return;
1.59 kristaps 847: case (MAN_HEAD):
1.110 kristaps 848: return;
1.26 kristaps 849: default:
850: term_newln(p);
851: break;
852: }
1.110 kristaps 853:
854: sz = term_len(p, INDENT);
855:
856: if (NULL != (n = n->parent->head->child))
857: if ((ival = a2width(p, n->string)) >= 0)
858: sz = (size_t)ival;
859:
860: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
861: p->offset = mt->offset;
1.116 schwarze 862:
863: if (--mt->lmarginsz < MAXMARGINS)
864: mt->lmargincur = mt->lmarginsz;
1.26 kristaps 865: }
866:
1.1 kristaps 867: static void
1.45 kristaps 868: print_man_node(DECL_ARGS)
1.1 kristaps 869: {
1.65 joerg 870: size_t rm, rmax;
1.54 kristaps 871: int c;
1.1 kristaps 872:
873: switch (n->type) {
874: case(MAN_TEXT):
1.97 kristaps 875: /*
876: * If we have a blank line, output a vertical space.
877: * If we have a space as the first character, break
878: * before printing the line's data.
879: */
1.96 kristaps 880: if ('\0' == *n->string) {
1.4 kristaps 881: term_vspace(p);
1.98 schwarze 882: return;
1.97 kristaps 883: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 884: term_newln(p);
1.54 kristaps 885:
1.4 kristaps 886: term_word(p, n->string);
1.52 kristaps 887:
1.97 kristaps 888: /*
889: * If we're in a literal context, make sure that words
890: * togehter on the same line stay together. This is a
891: * POST-printing call, so we check the NEXT word. Since
892: * -man doesn't have nested macros, we don't need to be
893: * more specific than this.
894: */
1.117 schwarze 895: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
1.97 kristaps 896: (NULL == n->next ||
897: n->next->line > n->line)) {
1.65 joerg 898: rm = p->rmargin;
899: rmax = p->maxrmargin;
1.60 kristaps 900: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.19 kristaps 901: p->flags |= TERMP_NOSPACE;
902: term_flushln(p);
1.65 joerg 903: p->rmargin = rm;
904: p->maxrmargin = rmax;
1.19 kristaps 905: }
1.100 schwarze 906:
907: if (MAN_EOS & n->flags)
908: p->flags |= TERMP_SENTENCE;
1.102 kristaps 909: return;
910: case (MAN_EQN):
1.115 kristaps 911: term_eqn(p, n->eqn);
1.97 kristaps 912: return;
1.91 kristaps 913: case (MAN_TBL):
1.97 kristaps 914: /*
915: * Tables are preceded by a newline. Then process a
916: * table line, which will cause line termination,
917: */
1.93 kristaps 918: if (TBL_SPAN_FIRST & n->span->flags)
919: term_newln(p);
1.92 kristaps 920: term_tbl(p, n->span);
1.97 kristaps 921: return;
1.1 kristaps 922: default:
923: break;
924: }
925:
1.97 kristaps 926: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
927: term_fontrepl(p, TERMFONT_NONE);
928:
929: c = 1;
930: if (termacts[n->tok].pre)
931: c = (*termacts[n->tok].pre)(p, mt, n, m);
932:
1.1 kristaps 933: if (c && n->child)
1.52 kristaps 934: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 935:
1.97 kristaps 936: if (termacts[n->tok].post)
937: (*termacts[n->tok].post)(p, mt, n, m);
938: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
939: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 940:
941: if (MAN_EOS & n->flags)
942: p->flags |= TERMP_SENTENCE;
1.1 kristaps 943: }
944:
945:
946: static void
1.52 kristaps 947: print_man_nodelist(DECL_ARGS)
1.1 kristaps 948: {
1.19 kristaps 949:
1.45 kristaps 950: print_man_node(p, mt, n, m);
1.1 kristaps 951: if ( ! n->next)
952: return;
1.52 kristaps 953: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 954: }
955:
956:
1.31 kristaps 957: static void
1.73 kristaps 958: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 959: {
1.73 kristaps 960: const struct man_meta *meta;
961:
962: meta = (const struct man_meta *)arg;
1.1 kristaps 963:
1.52 kristaps 964: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 965:
1.69 joerg 966: term_vspace(p);
967: term_vspace(p);
1.1 kristaps 968: term_vspace(p);
969:
970: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.104 schwarze 971: p->rmargin = p->maxrmargin - term_strlen(p, meta->date);
1.1 kristaps 972: p->offset = 0;
1.85 kristaps 973:
974: /* term_strlen() can return zero. */
975: if (p->rmargin == p->maxrmargin)
976: p->rmargin--;
1.1 kristaps 977:
978: if (meta->source)
979: term_word(p, meta->source);
980: if (meta->source)
981: term_word(p, "");
982: term_flushln(p);
983:
1.117 schwarze 984: p->flags |= TERMP_NOSPACE;
1.1 kristaps 985: p->offset = p->rmargin;
986: p->rmargin = p->maxrmargin;
987: p->flags &= ~TERMP_NOBREAK;
988:
1.104 schwarze 989: term_word(p, meta->date);
1.1 kristaps 990: term_flushln(p);
991: }
992:
993:
1.31 kristaps 994: static void
1.73 kristaps 995: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 996: {
1.46 kristaps 997: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 998: size_t buflen, titlen;
1.73 kristaps 999: const struct man_meta *m;
1000:
1001: m = (const struct man_meta *)arg;
1.1 kristaps 1002:
1.62 kristaps 1003: /*
1004: * Note that old groff would spit out some spaces before the
1005: * header. We discontinue this strange behaviour, but at one
1006: * point we did so here.
1007: */
1008:
1.118 schwarze 1009: p->offset = 0;
1.1 kristaps 1010: p->rmargin = p->maxrmargin;
1.58 kristaps 1011:
1.46 kristaps 1012: buf[0] = title[0] = '\0';
1.1 kristaps 1013:
1.46 kristaps 1014: if (m->vol)
1015: strlcpy(buf, m->vol, BUFSIZ);
1.77 kristaps 1016: buflen = term_strlen(p, buf);
1.1 kristaps 1017:
1.64 kristaps 1018: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.77 kristaps 1019: titlen = term_strlen(p, title);
1.1 kristaps 1020:
1.118 schwarze 1021: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1022: p->offset = 0;
1.57 kristaps 1023: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1024: (p->maxrmargin -
1025: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1026: p->maxrmargin - buflen;
1.1 kristaps 1027:
1028: term_word(p, title);
1029: term_flushln(p);
1030:
1.117 schwarze 1031: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1032: p->offset = p->rmargin;
1.57 kristaps 1033: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1034: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1035:
1036: term_word(p, buf);
1037: term_flushln(p);
1038:
1039: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1040: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1041: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1042: p->offset = p->rmargin;
1043: p->rmargin = p->maxrmargin;
1044: term_word(p, title);
1045: term_flushln(p);
1046: }
1.1 kristaps 1047:
1.118 schwarze 1048: p->flags &= ~TERMP_NOSPACE;
1049: p->offset = 0;
1.1 kristaps 1050: p->rmargin = p->maxrmargin;
1.61 kristaps 1051:
1.62 kristaps 1052: /*
1053: * Groff likes to have some leading spaces before content. Well
1054: * that's fine by me.
1055: */
1056:
1.61 kristaps 1057: term_vspace(p);
1058: term_vspace(p);
1059: term_vspace(p);
1.1 kristaps 1060: }
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