Annotation of mandoc/man_term.c, Revision 1.140
1.140 ! schwarze 1: /* $Id: man_term.c,v 1.139 2013/12/22 23:34:13 schwarze Exp $ */
1.1 kristaps 2: /*
1.128 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.140 ! schwarze 4: * Copyright (c) 2010-2014 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:
1.24 kristaps 38: struct mtermp {
39: int fl;
1.19 kristaps 40: #define MANT_LITERAL (1 << 0)
1.116 schwarze 41: size_t lmargin[MAXMARGINS]; /* margins (incl. visible page) */
42: int lmargincur; /* index of current margin */
43: int lmarginsz; /* actual number of nested margins */
44: size_t offset; /* default offset to visible page */
1.134 schwarze 45: int pardist; /* vert. space before par., unit: [v] */
1.24 kristaps 46: };
1.19 kristaps 47:
1.1 kristaps 48: #define DECL_ARGS struct termp *p, \
1.24 kristaps 49: struct mtermp *mt, \
1.1 kristaps 50: const struct man_node *n, \
1.135 schwarze 51: const struct man_meta *meta
1.1 kristaps 52:
53: struct termact {
54: int (*pre)(DECL_ARGS);
55: void (*post)(DECL_ARGS);
1.56 kristaps 56: int flags;
57: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 58: };
59:
1.77 kristaps 60: static int a2width(const struct termp *, const char *);
61: static size_t a2height(const struct termp *, const char *);
1.39 kristaps 62:
1.52 kristaps 63: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 64: static void print_man_node(DECL_ARGS);
1.74 kristaps 65: static void print_man_head(struct termp *, const void *);
1.73 kristaps 66: static void print_man_foot(struct termp *, const void *);
1.39 kristaps 67: static void print_bvspace(struct termp *,
1.134 schwarze 68: const struct man_node *, int);
1.39 kristaps 69:
1.1 kristaps 70: static int pre_B(DECL_ARGS);
1.19 kristaps 71: static int pre_HP(DECL_ARGS);
1.1 kristaps 72: static int pre_I(DECL_ARGS);
1.4 kristaps 73: static int pre_IP(DECL_ARGS);
1.127 kristaps 74: static int pre_OP(DECL_ARGS);
1.134 schwarze 75: static int pre_PD(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);
1.137 schwarze 81: static int pre_UR(DECL_ARGS);
1.127 kristaps 82: static int pre_alternate(DECL_ARGS);
83: static int pre_ft(DECL_ARGS);
1.29 kristaps 84: static int pre_ign(DECL_ARGS);
1.83 kristaps 85: static int pre_in(DECL_ARGS);
1.84 kristaps 86: static int pre_literal(DECL_ARGS);
1.19 kristaps 87: static int pre_sp(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);
1.137 schwarze 95: static void post_UR(DECL_ARGS);
1.1 kristaps 96:
1.32 kristaps 97: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 98: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 99: { NULL, NULL, 0 }, /* TH */
100: { pre_SH, post_SH, 0 }, /* SH */
101: { pre_SS, post_SS, 0 }, /* SS */
102: { pre_TP, post_TP, 0 }, /* TP */
103: { pre_PP, NULL, 0 }, /* LP */
104: { pre_PP, NULL, 0 }, /* PP */
105: { pre_PP, NULL, 0 }, /* P */
106: { pre_IP, post_IP, 0 }, /* IP */
107: { pre_HP, post_HP, 0 }, /* HP */
108: { NULL, NULL, 0 }, /* SM */
109: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 110: { pre_alternate, NULL, 0 }, /* BI */
111: { pre_alternate, NULL, 0 }, /* IB */
112: { pre_alternate, NULL, 0 }, /* BR */
113: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 114: { NULL, NULL, 0 }, /* R */
115: { pre_B, NULL, 0 }, /* B */
116: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 117: { pre_alternate, NULL, 0 }, /* IR */
118: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 119: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 120: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 121: { pre_literal, NULL, 0 }, /* nf */
122: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 123: { NULL, NULL, 0 }, /* RE */
124: { pre_RS, post_RS, 0 }, /* RS */
125: { pre_ign, NULL, 0 }, /* DT */
126: { pre_ign, NULL, 0 }, /* UC */
1.134 schwarze 127: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.70 joerg 128: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 129: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 130: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.127 kristaps 131: { pre_OP, NULL, 0 }, /* OP */
1.129 schwarze 132: { pre_literal, NULL, 0 }, /* EX */
133: { pre_literal, NULL, 0 }, /* EE */
1.137 schwarze 134: { pre_UR, post_UR, 0 }, /* UR */
135: { NULL, NULL, 0 }, /* UE */
1.1 kristaps 136: };
137:
138:
139:
1.31 kristaps 140: void
1.36 kristaps 141: terminal_man(void *arg, const struct man *man)
1.1 kristaps 142: {
1.36 kristaps 143: struct termp *p;
144: const struct man_node *n;
1.135 schwarze 145: const struct man_meta *meta;
1.36 kristaps 146: struct mtermp mt;
147:
148: p = (struct termp *)arg;
149:
1.122 schwarze 150: if (0 == p->defindent)
151: p->defindent = 7;
152:
1.58 kristaps 153: p->overstep = 0;
1.65 joerg 154: p->maxrmargin = p->defrmargin;
1.77 kristaps 155: p->tabwidth = term_len(p, 5);
1.73 kristaps 156:
1.36 kristaps 157: if (NULL == p->symtab)
1.109 kristaps 158: p->symtab = mchars_alloc();
1.36 kristaps 159:
160: n = man_node(man);
1.135 schwarze 161: meta = man_meta(man);
1.1 kristaps 162:
1.135 schwarze 163: term_begin(p, print_man_head, print_man_foot, meta);
1.1 kristaps 164: p->flags |= TERMP_NOSPACE;
1.19 kristaps 165:
1.116 schwarze 166: memset(&mt, 0, sizeof(struct mtermp));
167:
1.122 schwarze 168: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
169: mt.offset = term_len(p, p->defindent);
1.134 schwarze 170: mt.pardist = 1;
1.24 kristaps 171:
1.36 kristaps 172: if (n->child)
1.135 schwarze 173: print_man_nodelist(p, &mt, n->child, meta);
1.73 kristaps 174:
175: term_end(p);
1.1 kristaps 176: }
177:
178:
1.77 kristaps 179: static size_t
180: a2height(const struct termp *p, const char *cp)
1.18 kristaps 181: {
1.40 kristaps 182: struct roffsu su;
1.18 kristaps 183:
1.77 kristaps 184: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 kristaps 185: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 186:
1.77 kristaps 187: return(term_vspan(p, &su));
1.18 kristaps 188: }
189:
190:
191: static int
1.77 kristaps 192: a2width(const struct termp *p, const char *cp)
1.38 kristaps 193: {
1.40 kristaps 194: struct roffsu su;
1.38 kristaps 195:
1.77 kristaps 196: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 197: return(-1);
1.40 kristaps 198:
1.77 kristaps 199: return((int)term_hspan(p, &su));
1.38 kristaps 200: }
201:
1.111 kristaps 202: /*
203: * Printing leading vertical space before a block.
204: * This is used for the paragraph macros.
205: * The rules are pretty simple, since there's very little nesting going
206: * on here. Basically, if we're the first within another block (SS/SH),
207: * then don't emit vertical space. If we are (RS), then do. If not the
208: * first, print it.
209: */
1.39 kristaps 210: static void
1.134 schwarze 211: print_bvspace(struct termp *p, const struct man_node *n, int pardist)
1.18 kristaps 212: {
1.134 schwarze 213: int i;
1.111 kristaps 214:
1.39 kristaps 215: term_newln(p);
1.101 schwarze 216:
1.111 kristaps 217: if (n->body && n->body->child)
218: if (MAN_TBL == n->body->child->type)
219: return;
220:
221: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
222: if (NULL == n->prev)
223: return;
1.18 kristaps 224:
1.134 schwarze 225: for (i = 0; i < pardist; i++)
226: term_vspace(p);
1.18 kristaps 227: }
228:
1.3 kristaps 229: /* ARGSUSED */
1.1 kristaps 230: static int
1.29 kristaps 231: pre_ign(DECL_ARGS)
232: {
233:
234: return(0);
235: }
236:
237:
238: /* ARGSUSED */
239: static int
1.1 kristaps 240: pre_I(DECL_ARGS)
241: {
242:
1.52 kristaps 243: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 244: return(1);
245: }
246:
247:
248: /* ARGSUSED */
1.3 kristaps 249: static int
1.84 kristaps 250: pre_literal(DECL_ARGS)
1.19 kristaps 251: {
252:
1.81 kristaps 253: term_newln(p);
1.88 kristaps 254:
1.129 schwarze 255: if (MAN_nf == n->tok || MAN_EX == n->tok)
1.84 kristaps 256: mt->fl |= MANT_LITERAL;
1.88 kristaps 257: else
1.84 kristaps 258: mt->fl &= ~MANT_LITERAL;
259:
1.117 schwarze 260: /*
261: * Unlike .IP and .TP, .HP does not have a HEAD.
262: * So in case a second call to term_flushln() is needed,
263: * indentation has to be set up explicitly.
264: */
265: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.121 schwarze 266: p->offset = p->rmargin;
1.117 schwarze 267: p->rmargin = p->maxrmargin;
1.139 schwarze 268: p->trailspace = 0;
269: p->flags &= ~TERMP_NOBREAK;
1.117 schwarze 270: p->flags |= TERMP_NOSPACE;
271: }
272:
1.99 schwarze 273: return(0);
1.19 kristaps 274: }
275:
276: /* ARGSUSED */
277: static int
1.134 schwarze 278: pre_PD(DECL_ARGS)
279: {
280:
281: n = n->child;
282: if (0 == n) {
283: mt->pardist = 1;
284: return(0);
285: }
286: assert(MAN_TEXT == n->type);
287: mt->pardist = atoi(n->string);
288: return(0);
289: }
290:
291: /* ARGSUSED */
292: static int
1.88 kristaps 293: pre_alternate(DECL_ARGS)
1.3 kristaps 294: {
1.88 kristaps 295: enum termfont font[2];
296: const struct man_node *nn;
297: int savelit, i;
1.3 kristaps 298:
1.88 kristaps 299: switch (n->tok) {
300: case (MAN_RB):
301: font[0] = TERMFONT_NONE;
302: font[1] = TERMFONT_BOLD;
303: break;
304: case (MAN_RI):
305: font[0] = TERMFONT_NONE;
306: font[1] = TERMFONT_UNDER;
307: break;
308: case (MAN_BR):
309: font[0] = TERMFONT_BOLD;
310: font[1] = TERMFONT_NONE;
311: break;
312: case (MAN_BI):
313: font[0] = TERMFONT_BOLD;
314: font[1] = TERMFONT_UNDER;
315: break;
316: case (MAN_IR):
317: font[0] = TERMFONT_UNDER;
318: font[1] = TERMFONT_NONE;
319: break;
320: case (MAN_IB):
321: font[0] = TERMFONT_UNDER;
322: font[1] = TERMFONT_BOLD;
323: break;
324: default:
325: abort();
326: }
1.35 kristaps 327:
1.88 kristaps 328: savelit = MANT_LITERAL & mt->fl;
329: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 330:
1.88 kristaps 331: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
332: term_fontrepl(p, font[i]);
333: if (savelit && NULL == nn->next)
334: mt->fl |= MANT_LITERAL;
1.135 schwarze 335: print_man_node(p, mt, nn, meta);
1.88 kristaps 336: if (nn->next)
1.4 kristaps 337: p->flags |= TERMP_NOSPACE;
1.3 kristaps 338: }
339:
340: return(0);
341: }
342:
343: /* ARGSUSED */
1.1 kristaps 344: static int
345: pre_B(DECL_ARGS)
346: {
347:
1.52 kristaps 348: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 349: return(1);
1.127 kristaps 350: }
351:
352: /* ARGSUSED */
353: static int
354: pre_OP(DECL_ARGS)
355: {
356:
357: term_word(p, "[");
358: p->flags |= TERMP_NOSPACE;
359:
360: if (NULL != (n = n->child)) {
361: term_fontrepl(p, TERMFONT_BOLD);
362: term_word(p, n->string);
363: }
364: if (NULL != n && NULL != n->next) {
365: term_fontrepl(p, TERMFONT_UNDER);
366: term_word(p, n->next->string);
367: }
368:
369: term_fontrepl(p, TERMFONT_NONE);
370: p->flags |= TERMP_NOSPACE;
371: term_word(p, "]");
372: return(0);
1.89 kristaps 373: }
374:
375: /* ARGSUSED */
376: static int
377: pre_ft(DECL_ARGS)
378: {
379: const char *cp;
380:
381: if (NULL == n->child) {
382: term_fontlast(p);
383: return(0);
384: }
385:
386: cp = n->child->string;
387: switch (*cp) {
388: case ('4'):
389: /* FALLTHROUGH */
390: case ('3'):
391: /* FALLTHROUGH */
392: case ('B'):
393: term_fontrepl(p, TERMFONT_BOLD);
394: break;
395: case ('2'):
396: /* FALLTHROUGH */
397: case ('I'):
398: term_fontrepl(p, TERMFONT_UNDER);
399: break;
400: case ('P'):
401: term_fontlast(p);
402: break;
403: case ('1'):
404: /* FALLTHROUGH */
405: case ('C'):
406: /* FALLTHROUGH */
407: case ('R'):
408: term_fontrepl(p, TERMFONT_NONE);
409: break;
410: default:
411: break;
412: }
413: return(0);
1.83 kristaps 414: }
415:
416: /* ARGSUSED */
417: static int
418: pre_in(DECL_ARGS)
419: {
420: int len, less;
421: size_t v;
422: const char *cp;
423:
424: term_newln(p);
425:
426: if (NULL == n->child) {
427: p->offset = mt->offset;
428: return(0);
429: }
430:
431: cp = n->child->string;
432: less = 0;
433:
434: if ('-' == *cp)
435: less = -1;
436: else if ('+' == *cp)
437: less = 1;
438: else
439: cp--;
440:
441: if ((len = a2width(p, ++cp)) < 0)
442: return(0);
443:
444: v = (size_t)len;
445:
446: if (less < 0)
447: p->offset -= p->offset > v ? v : p->offset;
448: else if (less > 0)
449: p->offset += v;
450: else
451: p->offset = v;
1.95 kristaps 452:
453: /* Don't let this creep beyond the right margin. */
454:
455: if (p->offset > p->rmargin)
456: p->offset = p->rmargin;
1.83 kristaps 457:
458: return(0);
1.1 kristaps 459: }
460:
461:
1.3 kristaps 462: /* ARGSUSED */
1.1 kristaps 463: static int
1.19 kristaps 464: pre_sp(DECL_ARGS)
465: {
1.131 schwarze 466: char *s;
1.77 kristaps 467: size_t i, len;
1.131 schwarze 468: int neg;
1.112 kristaps 469:
470: if ((NULL == n->prev && n->parent)) {
1.132 schwarze 471: switch (n->parent->tok) {
472: case (MAN_SH):
473: /* FALLTHROUGH */
474: case (MAN_SS):
475: /* FALLTHROUGH */
476: case (MAN_PP):
477: /* FALLTHROUGH */
478: case (MAN_LP):
479: /* FALLTHROUGH */
480: case (MAN_P):
481: /* FALLTHROUGH */
1.112 kristaps 482: return(0);
1.132 schwarze 483: default:
484: break;
485: }
1.112 kristaps 486: }
1.19 kristaps 487:
1.131 schwarze 488: neg = 0;
1.82 kristaps 489: switch (n->tok) {
490: case (MAN_br):
491: len = 0;
492: break;
493: default:
1.131 schwarze 494: if (NULL == n->child) {
495: len = 1;
496: break;
497: }
498: s = n->child->string;
499: if ('-' == *s) {
500: neg = 1;
501: s++;
502: }
503: len = a2height(p, s);
1.82 kristaps 504: break;
505: }
1.38 kristaps 506:
1.19 kristaps 507: if (0 == len)
508: term_newln(p);
1.131 schwarze 509: else if (neg)
510: p->skipvsp += len;
511: else
512: for (i = 0; i < len; i++)
513: term_vspace(p);
1.19 kristaps 514:
1.15 kristaps 515: return(0);
516: }
517:
518:
519: /* ARGSUSED */
520: static int
1.19 kristaps 521: pre_HP(DECL_ARGS)
522: {
1.117 schwarze 523: size_t len, one;
1.24 kristaps 524: int ival;
525: const struct man_node *nn;
1.19 kristaps 526:
1.20 kristaps 527: switch (n->type) {
528: case (MAN_BLOCK):
1.134 schwarze 529: print_bvspace(p, n, mt->pardist);
1.24 kristaps 530: return(1);
1.20 kristaps 531: case (MAN_BODY):
532: break;
533: default:
534: return(0);
535: }
536:
1.130 schwarze 537: if ( ! (MANT_LITERAL & mt->fl)) {
538: p->flags |= TERMP_NOBREAK;
1.139 schwarze 539: p->trailspace = 2;
1.130 schwarze 540: }
541:
1.116 schwarze 542: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 543: ival = -1;
544:
545: /* Calculate offset. */
546:
1.39 kristaps 547: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 548: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 549: len = (size_t)ival;
550:
1.117 schwarze 551: one = term_len(p, 1);
1.121 schwarze 552: if (len < one)
1.117 schwarze 553: len = one;
1.24 kristaps 554:
1.26 kristaps 555: p->offset = mt->offset;
556: p->rmargin = mt->offset + len;
1.24 kristaps 557:
558: if (ival >= 0)
1.116 schwarze 559: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 560:
1.19 kristaps 561: return(1);
562: }
563:
564:
565: /* ARGSUSED */
1.20 kristaps 566: static void
567: post_HP(DECL_ARGS)
568: {
569:
570: switch (n->type) {
571: case (MAN_BODY):
1.136 schwarze 572: term_newln(p);
1.20 kristaps 573: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 574: p->trailspace = 0;
1.26 kristaps 575: p->offset = mt->offset;
1.20 kristaps 576: p->rmargin = p->maxrmargin;
577: break;
578: default:
579: break;
580: }
581: }
582:
583:
584: /* ARGSUSED */
1.19 kristaps 585: static int
1.1 kristaps 586: pre_PP(DECL_ARGS)
587: {
588:
1.19 kristaps 589: switch (n->type) {
590: case (MAN_BLOCK):
1.122 schwarze 591: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.134 schwarze 592: print_bvspace(p, n, mt->pardist);
1.19 kristaps 593: break;
594: default:
1.26 kristaps 595: p->offset = mt->offset;
1.19 kristaps 596: break;
597: }
598:
1.87 kristaps 599: return(MAN_HEAD != n->type);
1.1 kristaps 600: }
601:
602:
1.3 kristaps 603: /* ARGSUSED */
1.1 kristaps 604: static int
1.4 kristaps 605: pre_IP(DECL_ARGS)
606: {
1.22 kristaps 607: const struct man_node *nn;
608: size_t len;
1.94 schwarze 609: int savelit, ival;
1.18 kristaps 610:
1.22 kristaps 611: switch (n->type) {
612: case (MAN_BODY):
613: p->flags |= TERMP_NOSPACE;
614: break;
615: case (MAN_HEAD):
616: p->flags |= TERMP_NOBREAK;
1.139 schwarze 617: p->trailspace = 1;
1.22 kristaps 618: break;
1.23 kristaps 619: case (MAN_BLOCK):
1.134 schwarze 620: print_bvspace(p, n, mt->pardist);
1.23 kristaps 621: /* FALLTHROUGH */
1.22 kristaps 622: default:
623: return(1);
624: }
1.18 kristaps 625:
1.116 schwarze 626: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 627: ival = -1;
1.4 kristaps 628:
1.94 schwarze 629: /* Calculate the offset from the optional second argument. */
1.22 kristaps 630: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 631: if (NULL != (nn = nn->next))
1.77 kristaps 632: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 633: len = (size_t)ival;
1.4 kristaps 634:
1.22 kristaps 635: switch (n->type) {
636: case (MAN_HEAD):
1.23 kristaps 637: /* Handle zero-width lengths. */
638: if (0 == len)
1.77 kristaps 639: len = term_len(p, 1);
1.23 kristaps 640:
1.26 kristaps 641: p->offset = mt->offset;
642: p->rmargin = mt->offset + len;
1.22 kristaps 643: if (ival < 0)
644: break;
1.18 kristaps 645:
1.24 kristaps 646: /* Set the saved left-margin. */
1.116 schwarze 647: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 648:
1.94 schwarze 649: savelit = MANT_LITERAL & mt->fl;
650: mt->fl &= ~MANT_LITERAL;
651:
652: if (n->child)
1.135 schwarze 653: print_man_node(p, mt, n->child, meta);
1.94 schwarze 654:
655: if (savelit)
656: mt->fl |= MANT_LITERAL;
657:
1.22 kristaps 658: return(0);
1.23 kristaps 659: case (MAN_BODY):
1.26 kristaps 660: p->offset = mt->offset + len;
1.140 ! schwarze 661: p->rmargin = p->maxrmargin > p->offset ?
! 662: p->maxrmargin : p->offset;
1.23 kristaps 663: break;
1.22 kristaps 664: default:
665: break;
1.18 kristaps 666: }
667:
1.22 kristaps 668: return(1);
669: }
1.18 kristaps 670:
671:
1.22 kristaps 672: /* ARGSUSED */
673: static void
674: post_IP(DECL_ARGS)
675: {
1.4 kristaps 676:
1.22 kristaps 677: switch (n->type) {
678: case (MAN_HEAD):
679: term_flushln(p);
680: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 681: p->trailspace = 0;
1.22 kristaps 682: p->rmargin = p->maxrmargin;
683: break;
684: case (MAN_BODY):
1.94 schwarze 685: term_newln(p);
1.138 schwarze 686: p->offset = mt->offset;
1.22 kristaps 687: break;
688: default:
689: break;
690: }
1.4 kristaps 691: }
692:
693:
694: /* ARGSUSED */
695: static int
1.1 kristaps 696: pre_TP(DECL_ARGS)
697: {
1.23 kristaps 698: const struct man_node *nn;
699: size_t len;
1.94 schwarze 700: int savelit, ival;
1.1 kristaps 701:
1.21 kristaps 702: switch (n->type) {
703: case (MAN_HEAD):
704: p->flags |= TERMP_NOBREAK;
1.139 schwarze 705: p->trailspace = 1;
1.21 kristaps 706: break;
707: case (MAN_BODY):
708: p->flags |= TERMP_NOSPACE;
1.23 kristaps 709: break;
710: case (MAN_BLOCK):
1.134 schwarze 711: print_bvspace(p, n, mt->pardist);
1.23 kristaps 712: /* FALLTHROUGH */
713: default:
714: return(1);
715: }
716:
1.116 schwarze 717: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 718: ival = -1;
719:
720: /* Calculate offset. */
721:
1.116 schwarze 722: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 723: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 724: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 725: len = (size_t)ival;
726:
727: switch (n->type) {
728: case (MAN_HEAD):
729: /* Handle zero-length properly. */
730: if (0 == len)
1.77 kristaps 731: len = term_len(p, 1);
1.23 kristaps 732:
1.26 kristaps 733: p->offset = mt->offset;
734: p->rmargin = mt->offset + len;
1.23 kristaps 735:
1.94 schwarze 736: savelit = MANT_LITERAL & mt->fl;
737: mt->fl &= ~MANT_LITERAL;
738:
1.23 kristaps 739: /* Don't print same-line elements. */
1.94 schwarze 740: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 741: if (nn->line > n->line)
1.135 schwarze 742: print_man_node(p, mt, nn, meta);
1.24 kristaps 743:
1.94 schwarze 744: if (savelit)
745: mt->fl |= MANT_LITERAL;
1.24 kristaps 746: if (ival >= 0)
1.116 schwarze 747: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 748:
1.23 kristaps 749: return(0);
750: case (MAN_BODY):
1.26 kristaps 751: p->offset = mt->offset + len;
1.140 ! schwarze 752: p->rmargin = p->maxrmargin > p->offset ?
! 753: p->maxrmargin : p->offset;
1.139 schwarze 754: p->trailspace = 0;
1.130 schwarze 755: p->flags &= ~TERMP_NOBREAK;
1.21 kristaps 756: break;
757: default:
758: break;
759: }
1.16 kristaps 760:
1.21 kristaps 761: return(1);
762: }
1.1 kristaps 763:
764:
1.21 kristaps 765: /* ARGSUSED */
766: static void
767: post_TP(DECL_ARGS)
768: {
1.1 kristaps 769:
1.21 kristaps 770: switch (n->type) {
771: case (MAN_HEAD):
772: term_flushln(p);
773: break;
774: case (MAN_BODY):
1.94 schwarze 775: term_newln(p);
1.138 schwarze 776: p->offset = mt->offset;
1.21 kristaps 777: break;
778: default:
779: break;
780: }
1.1 kristaps 781: }
782:
783:
1.3 kristaps 784: /* ARGSUSED */
1.1 kristaps 785: static int
786: pre_SS(DECL_ARGS)
787: {
1.134 schwarze 788: int i;
1.1 kristaps 789:
1.19 kristaps 790: switch (n->type) {
791: case (MAN_BLOCK):
1.113 kristaps 792: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 793: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
794: mt->offset = term_len(p, p->defindent);
1.24 kristaps 795: /* If following a prior empty `SS', no vspace. */
796: if (n->prev && MAN_SS == n->prev->tok)
797: if (NULL == n->prev->body->child)
798: break;
799: if (NULL == n->prev)
800: break;
1.134 schwarze 801: for (i = 0; i < mt->pardist; i++)
802: term_vspace(p);
1.19 kristaps 803: break;
804: case (MAN_HEAD):
1.52 kristaps 805: term_fontrepl(p, TERMFONT_BOLD);
1.133 schwarze 806: p->offset = term_len(p, 3);
1.19 kristaps 807: break;
1.24 kristaps 808: case (MAN_BODY):
1.26 kristaps 809: p->offset = mt->offset;
1.24 kristaps 810: break;
1.19 kristaps 811: default:
812: break;
813: }
814:
1.1 kristaps 815: return(1);
816: }
817:
818:
1.3 kristaps 819: /* ARGSUSED */
1.1 kristaps 820: static void
821: post_SS(DECL_ARGS)
822: {
823:
1.19 kristaps 824: switch (n->type) {
825: case (MAN_HEAD):
826: term_newln(p);
827: break;
1.24 kristaps 828: case (MAN_BODY):
829: term_newln(p);
830: break;
1.19 kristaps 831: default:
832: break;
833: }
1.1 kristaps 834: }
835:
836:
1.3 kristaps 837: /* ARGSUSED */
1.1 kristaps 838: static int
839: pre_SH(DECL_ARGS)
840: {
1.134 schwarze 841: int i;
1.22 kristaps 842:
1.19 kristaps 843: switch (n->type) {
844: case (MAN_BLOCK):
1.113 kristaps 845: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 846: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
847: mt->offset = term_len(p, p->defindent);
1.22 kristaps 848: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 849: if (n->prev && MAN_SH == n->prev->tok)
850: if (NULL == n->prev->body->child)
851: break;
1.61 kristaps 852: /* If the first macro, no vspae. */
853: if (NULL == n->prev)
854: break;
1.134 schwarze 855: for (i = 0; i < mt->pardist; i++)
856: term_vspace(p);
1.19 kristaps 857: break;
858: case (MAN_HEAD):
1.52 kristaps 859: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 860: p->offset = 0;
861: break;
862: case (MAN_BODY):
1.26 kristaps 863: p->offset = mt->offset;
1.19 kristaps 864: break;
865: default:
866: break;
867: }
1.1 kristaps 868:
869: return(1);
870: }
871:
872:
1.3 kristaps 873: /* ARGSUSED */
1.1 kristaps 874: static void
875: post_SH(DECL_ARGS)
876: {
877:
1.19 kristaps 878: switch (n->type) {
879: case (MAN_HEAD):
880: term_newln(p);
881: break;
882: case (MAN_BODY):
883: term_newln(p);
884: break;
885: default:
886: break;
887: }
1.1 kristaps 888: }
889:
1.26 kristaps 890: /* ARGSUSED */
891: static int
892: pre_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):
899: term_newln(p);
900: return(1);
901: case (MAN_HEAD):
902: return(0);
903: default:
904: break;
905: }
906:
1.122 schwarze 907: sz = term_len(p, p->defindent);
1.26 kristaps 908:
1.110 kristaps 909: if (NULL != (n = n->parent->head->child))
910: if ((ival = a2width(p, n->string)) >= 0)
911: sz = (size_t)ival;
1.26 kristaps 912:
1.110 kristaps 913: mt->offset += sz;
1.140 ! schwarze 914: p->offset = mt->offset;
! 915: p->rmargin = p->maxrmargin > p->offset ?
! 916: p->maxrmargin : p->offset;
1.26 kristaps 917:
1.116 schwarze 918: if (++mt->lmarginsz < MAXMARGINS)
919: mt->lmargincur = mt->lmarginsz;
920:
921: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 922: return(1);
923: }
924:
925: /* ARGSUSED */
926: static void
927: post_RS(DECL_ARGS)
928: {
1.110 kristaps 929: int ival;
930: size_t sz;
1.26 kristaps 931:
932: switch (n->type) {
933: case (MAN_BLOCK):
1.110 kristaps 934: return;
1.59 kristaps 935: case (MAN_HEAD):
1.110 kristaps 936: return;
1.26 kristaps 937: default:
938: term_newln(p);
939: break;
940: }
1.110 kristaps 941:
1.122 schwarze 942: sz = term_len(p, p->defindent);
1.110 kristaps 943:
944: if (NULL != (n = n->parent->head->child))
945: if ((ival = a2width(p, n->string)) >= 0)
946: sz = (size_t)ival;
947:
948: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
949: p->offset = mt->offset;
1.116 schwarze 950:
951: if (--mt->lmarginsz < MAXMARGINS)
952: mt->lmargincur = mt->lmarginsz;
1.137 schwarze 953: }
954:
955: /* ARGSUSED */
956: static int
957: pre_UR(DECL_ARGS)
958: {
959:
960: return (MAN_HEAD != n->type);
961: }
962:
963: /* ARGSUSED */
964: static void
965: post_UR(DECL_ARGS)
966: {
967:
968: if (MAN_BLOCK != n->type)
969: return;
970:
971: term_word(p, "<");
972: p->flags |= TERMP_NOSPACE;
973:
974: if (NULL != n->child->child)
975: print_man_node(p, mt, n->child->child, meta);
976:
977: p->flags |= TERMP_NOSPACE;
978: term_word(p, ">");
1.26 kristaps 979: }
980:
1.1 kristaps 981: static void
1.45 kristaps 982: print_man_node(DECL_ARGS)
1.1 kristaps 983: {
1.65 joerg 984: size_t rm, rmax;
1.54 kristaps 985: int c;
1.1 kristaps 986:
987: switch (n->type) {
988: case(MAN_TEXT):
1.97 kristaps 989: /*
990: * If we have a blank line, output a vertical space.
991: * If we have a space as the first character, break
992: * before printing the line's data.
993: */
1.96 kristaps 994: if ('\0' == *n->string) {
1.4 kristaps 995: term_vspace(p);
1.98 schwarze 996: return;
1.97 kristaps 997: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 998: term_newln(p);
1.54 kristaps 999:
1.4 kristaps 1000: term_word(p, n->string);
1.130 schwarze 1001: goto out;
1.52 kristaps 1002:
1.102 kristaps 1003: case (MAN_EQN):
1.115 kristaps 1004: term_eqn(p, n->eqn);
1.97 kristaps 1005: return;
1.91 kristaps 1006: case (MAN_TBL):
1.97 kristaps 1007: /*
1008: * Tables are preceded by a newline. Then process a
1009: * table line, which will cause line termination,
1010: */
1.93 kristaps 1011: if (TBL_SPAN_FIRST & n->span->flags)
1012: term_newln(p);
1.92 kristaps 1013: term_tbl(p, n->span);
1.97 kristaps 1014: return;
1.1 kristaps 1015: default:
1016: break;
1017: }
1018:
1.97 kristaps 1019: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
1020: term_fontrepl(p, TERMFONT_NONE);
1021:
1022: c = 1;
1023: if (termacts[n->tok].pre)
1.135 schwarze 1024: c = (*termacts[n->tok].pre)(p, mt, n, meta);
1.97 kristaps 1025:
1.1 kristaps 1026: if (c && n->child)
1.135 schwarze 1027: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 1028:
1.97 kristaps 1029: if (termacts[n->tok].post)
1.135 schwarze 1030: (*termacts[n->tok].post)(p, mt, n, meta);
1.97 kristaps 1031: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
1032: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 1033:
1.130 schwarze 1034: out:
1035: /*
1036: * If we're in a literal context, make sure that words
1037: * together on the same line stay together. This is a
1038: * POST-printing call, so we check the NEXT word. Since
1039: * -man doesn't have nested macros, we don't need to be
1040: * more specific than this.
1041: */
1042: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
1.136 schwarze 1043: (NULL == n->next || n->next->line > n->line)) {
1.130 schwarze 1044: rm = p->rmargin;
1045: rmax = p->maxrmargin;
1046: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1047: p->flags |= TERMP_NOSPACE;
1048: if (NULL != n->string && '\0' != *n->string)
1049: term_flushln(p);
1050: else
1051: term_newln(p);
1052: if (rm < rmax && n->parent->tok == MAN_HP) {
1053: p->offset = rm;
1054: p->rmargin = rmax;
1055: } else
1056: p->rmargin = rm;
1057: p->maxrmargin = rmax;
1058: }
1.63 kristaps 1059: if (MAN_EOS & n->flags)
1060: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1061: }
1062:
1063:
1064: static void
1.52 kristaps 1065: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1066: {
1.19 kristaps 1067:
1.135 schwarze 1068: print_man_node(p, mt, n, meta);
1.1 kristaps 1069: if ( ! n->next)
1070: return;
1.135 schwarze 1071: print_man_nodelist(p, mt, n->next, meta);
1.1 kristaps 1072: }
1073:
1074:
1.31 kristaps 1075: static void
1.73 kristaps 1076: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 1077: {
1.123 schwarze 1078: char title[BUFSIZ];
1079: size_t datelen;
1.73 kristaps 1080: const struct man_meta *meta;
1081:
1082: meta = (const struct man_meta *)arg;
1.125 schwarze 1083: assert(meta->title);
1084: assert(meta->msec);
1085: assert(meta->date);
1.1 kristaps 1086:
1.52 kristaps 1087: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1088:
1.69 joerg 1089: term_vspace(p);
1.126 schwarze 1090:
1091: /*
1092: * Temporary, undocumented option to imitate mdoc(7) output.
1093: * In the bottom right corner, use the source instead of
1094: * the title.
1095: */
1096:
1097: if ( ! p->mdocstyle) {
1098: term_vspace(p);
1099: term_vspace(p);
1100: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1101: } else if (meta->source) {
1102: strlcpy(title, meta->source, BUFSIZ);
1103: } else {
1104: title[0] = '\0';
1105: }
1.125 schwarze 1106: datelen = term_strlen(p, meta->date);
1.1 kristaps 1107:
1.126 schwarze 1108: /* Bottom left corner: manual source. */
1109:
1.1 kristaps 1110: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.139 schwarze 1111: p->trailspace = 1;
1.1 kristaps 1112: p->offset = 0;
1.123 schwarze 1113: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1114:
1115: if (meta->source)
1116: term_word(p, meta->source);
1117: term_flushln(p);
1118:
1.126 schwarze 1119: /* At the bottom in the middle: manual date. */
1120:
1.117 schwarze 1121: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1122: p->offset = p->rmargin;
1.123 schwarze 1123: p->rmargin = p->maxrmargin - term_strlen(p, title);
1124: if (p->offset + datelen >= p->rmargin)
1125: p->rmargin = p->offset + datelen;
1126:
1.125 schwarze 1127: term_word(p, meta->date);
1.123 schwarze 1128: term_flushln(p);
1129:
1.126 schwarze 1130: /* Bottom right corner: manual title and section. */
1131:
1.123 schwarze 1132: p->flags &= ~TERMP_NOBREAK;
1133: p->flags |= TERMP_NOSPACE;
1.139 schwarze 1134: p->trailspace = 0;
1.123 schwarze 1135: p->offset = p->rmargin;
1.1 kristaps 1136: p->rmargin = p->maxrmargin;
1137:
1.123 schwarze 1138: term_word(p, title);
1.1 kristaps 1139: term_flushln(p);
1140: }
1141:
1142:
1.31 kristaps 1143: static void
1.73 kristaps 1144: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1145: {
1.46 kristaps 1146: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1147: size_t buflen, titlen;
1.135 schwarze 1148: const struct man_meta *meta;
1.73 kristaps 1149:
1.135 schwarze 1150: meta = (const struct man_meta *)arg;
1151: assert(meta->title);
1152: assert(meta->msec);
1.1 kristaps 1153:
1.135 schwarze 1154: if (meta->vol)
1155: strlcpy(buf, meta->vol, BUFSIZ);
1.126 schwarze 1156: else
1157: buf[0] = '\0';
1.77 kristaps 1158: buflen = term_strlen(p, buf);
1.1 kristaps 1159:
1.126 schwarze 1160: /* Top left corner: manual title and section. */
1161:
1.135 schwarze 1162: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1.77 kristaps 1163: titlen = term_strlen(p, title);
1.1 kristaps 1164:
1.118 schwarze 1165: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.139 schwarze 1166: p->trailspace = 1;
1.1 kristaps 1167: p->offset = 0;
1.57 kristaps 1168: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1169: (p->maxrmargin -
1170: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1171: p->maxrmargin - buflen;
1.1 kristaps 1172:
1173: term_word(p, title);
1174: term_flushln(p);
1175:
1.126 schwarze 1176: /* At the top in the middle: manual volume. */
1177:
1.117 schwarze 1178: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1179: p->offset = p->rmargin;
1.57 kristaps 1180: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1181: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1182:
1183: term_word(p, buf);
1184: term_flushln(p);
1185:
1.126 schwarze 1186: /* Top right corner: title and section, again. */
1187:
1.1 kristaps 1188: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 1189: p->trailspace = 0;
1.57 kristaps 1190: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1191: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1192: p->offset = p->rmargin;
1193: p->rmargin = p->maxrmargin;
1194: term_word(p, title);
1195: term_flushln(p);
1196: }
1.1 kristaps 1197:
1.118 schwarze 1198: p->flags &= ~TERMP_NOSPACE;
1199: p->offset = 0;
1.1 kristaps 1200: p->rmargin = p->maxrmargin;
1.61 kristaps 1201:
1.62 kristaps 1202: /*
1.126 schwarze 1203: * Groff prints three blank lines before the content.
1204: * Do the same, except in the temporary, undocumented
1205: * mode imitating mdoc(7) output.
1.62 kristaps 1206: */
1207:
1.61 kristaps 1208: term_vspace(p);
1.126 schwarze 1209: if ( ! p->mdocstyle) {
1210: term_vspace(p);
1211: term_vspace(p);
1212: }
1.1 kristaps 1213: }
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