Annotation of mandoc/man_term.c, Revision 1.145
1.145 ! schwarze 1: /* $Id: man_term.c,v 1.144 2014/03/30 21:28:01 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);
1.143 schwarze 87: static int pre_ll(DECL_ARGS);
1.19 kristaps 88: static int pre_sp(DECL_ARGS);
1.1 kristaps 89:
1.22 kristaps 90: static void post_IP(DECL_ARGS);
1.20 kristaps 91: static void post_HP(DECL_ARGS);
1.26 kristaps 92: static void post_RS(DECL_ARGS);
1.1 kristaps 93: static void post_SH(DECL_ARGS);
94: static void post_SS(DECL_ARGS);
1.21 kristaps 95: static void post_TP(DECL_ARGS);
1.137 schwarze 96: static void post_UR(DECL_ARGS);
1.1 kristaps 97:
1.32 kristaps 98: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 99: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 100: { NULL, NULL, 0 }, /* TH */
101: { pre_SH, post_SH, 0 }, /* SH */
102: { pre_SS, post_SS, 0 }, /* SS */
103: { pre_TP, post_TP, 0 }, /* TP */
104: { pre_PP, NULL, 0 }, /* LP */
105: { pre_PP, NULL, 0 }, /* PP */
106: { pre_PP, NULL, 0 }, /* P */
107: { pre_IP, post_IP, 0 }, /* IP */
108: { pre_HP, post_HP, 0 }, /* HP */
109: { NULL, NULL, 0 }, /* SM */
110: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 111: { pre_alternate, NULL, 0 }, /* BI */
112: { pre_alternate, NULL, 0 }, /* IB */
113: { pre_alternate, NULL, 0 }, /* BR */
114: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 115: { NULL, NULL, 0 }, /* R */
116: { pre_B, NULL, 0 }, /* B */
117: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 118: { pre_alternate, NULL, 0 }, /* IR */
119: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 120: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 121: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 122: { pre_literal, NULL, 0 }, /* nf */
123: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 124: { NULL, NULL, 0 }, /* RE */
125: { pre_RS, post_RS, 0 }, /* RS */
126: { pre_ign, NULL, 0 }, /* DT */
127: { pre_ign, NULL, 0 }, /* UC */
1.134 schwarze 128: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.70 joerg 129: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 130: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 131: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.127 kristaps 132: { pre_OP, NULL, 0 }, /* OP */
1.129 schwarze 133: { pre_literal, NULL, 0 }, /* EX */
134: { pre_literal, NULL, 0 }, /* EE */
1.137 schwarze 135: { pre_UR, post_UR, 0 }, /* UR */
136: { NULL, NULL, 0 }, /* UE */
1.143 schwarze 137: { pre_ll, NULL, MAN_NOTEXT }, /* ll */
1.1 kristaps 138: };
139:
140:
141:
1.31 kristaps 142: void
1.36 kristaps 143: terminal_man(void *arg, const struct man *man)
1.1 kristaps 144: {
1.36 kristaps 145: struct termp *p;
146: const struct man_node *n;
1.135 schwarze 147: const struct man_meta *meta;
1.36 kristaps 148: struct mtermp mt;
149:
150: p = (struct termp *)arg;
151:
1.122 schwarze 152: if (0 == p->defindent)
153: p->defindent = 7;
154:
1.58 kristaps 155: p->overstep = 0;
1.65 joerg 156: p->maxrmargin = p->defrmargin;
1.77 kristaps 157: p->tabwidth = term_len(p, 5);
1.73 kristaps 158:
1.36 kristaps 159: if (NULL == p->symtab)
1.109 kristaps 160: p->symtab = mchars_alloc();
1.36 kristaps 161:
162: n = man_node(man);
1.135 schwarze 163: meta = man_meta(man);
1.1 kristaps 164:
1.135 schwarze 165: term_begin(p, print_man_head, print_man_foot, meta);
1.1 kristaps 166: p->flags |= TERMP_NOSPACE;
1.19 kristaps 167:
1.116 schwarze 168: memset(&mt, 0, sizeof(struct mtermp));
169:
1.122 schwarze 170: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
171: mt.offset = term_len(p, p->defindent);
1.134 schwarze 172: mt.pardist = 1;
1.24 kristaps 173:
1.36 kristaps 174: if (n->child)
1.135 schwarze 175: print_man_nodelist(p, &mt, n->child, meta);
1.73 kristaps 176:
177: term_end(p);
1.1 kristaps 178: }
179:
180:
1.77 kristaps 181: static size_t
182: a2height(const struct termp *p, const char *cp)
1.18 kristaps 183: {
1.40 kristaps 184: struct roffsu su;
1.18 kristaps 185:
1.77 kristaps 186: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 kristaps 187: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 188:
1.77 kristaps 189: return(term_vspan(p, &su));
1.18 kristaps 190: }
191:
192:
193: static int
1.77 kristaps 194: a2width(const struct termp *p, const char *cp)
1.38 kristaps 195: {
1.40 kristaps 196: struct roffsu su;
1.38 kristaps 197:
1.77 kristaps 198: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 199: return(-1);
1.40 kristaps 200:
1.77 kristaps 201: return((int)term_hspan(p, &su));
1.38 kristaps 202: }
203:
1.111 kristaps 204: /*
205: * Printing leading vertical space before a block.
206: * This is used for the paragraph macros.
207: * The rules are pretty simple, since there's very little nesting going
208: * on here. Basically, if we're the first within another block (SS/SH),
209: * then don't emit vertical space. If we are (RS), then do. If not the
210: * first, print it.
211: */
1.39 kristaps 212: static void
1.134 schwarze 213: print_bvspace(struct termp *p, const struct man_node *n, int pardist)
1.18 kristaps 214: {
1.134 schwarze 215: int i;
1.111 kristaps 216:
1.39 kristaps 217: term_newln(p);
1.101 schwarze 218:
1.111 kristaps 219: if (n->body && n->body->child)
220: if (MAN_TBL == n->body->child->type)
221: return;
222:
223: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
224: if (NULL == n->prev)
225: return;
1.18 kristaps 226:
1.134 schwarze 227: for (i = 0; i < pardist; i++)
228: term_vspace(p);
1.18 kristaps 229: }
230:
1.3 kristaps 231: /* ARGSUSED */
1.1 kristaps 232: static int
1.29 kristaps 233: pre_ign(DECL_ARGS)
234: {
235:
1.143 schwarze 236: return(0);
237: }
238:
239:
240: /* ARGSUSED */
241: static int
242: pre_ll(DECL_ARGS)
243: {
244:
1.144 schwarze 245: term_setwidth(p, n->nchild ? n->child->string : NULL);
1.29 kristaps 246: return(0);
247: }
248:
249:
250: /* ARGSUSED */
251: static int
1.1 kristaps 252: pre_I(DECL_ARGS)
253: {
254:
1.52 kristaps 255: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 256: return(1);
257: }
258:
259:
260: /* ARGSUSED */
1.3 kristaps 261: static int
1.84 kristaps 262: pre_literal(DECL_ARGS)
1.19 kristaps 263: {
264:
1.81 kristaps 265: term_newln(p);
1.88 kristaps 266:
1.129 schwarze 267: if (MAN_nf == n->tok || MAN_EX == n->tok)
1.84 kristaps 268: mt->fl |= MANT_LITERAL;
1.88 kristaps 269: else
1.84 kristaps 270: mt->fl &= ~MANT_LITERAL;
271:
1.117 schwarze 272: /*
273: * Unlike .IP and .TP, .HP does not have a HEAD.
274: * So in case a second call to term_flushln() is needed,
275: * indentation has to be set up explicitly.
276: */
277: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.121 schwarze 278: p->offset = p->rmargin;
1.117 schwarze 279: p->rmargin = p->maxrmargin;
1.139 schwarze 280: p->trailspace = 0;
1.145 ! schwarze 281: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.117 schwarze 282: p->flags |= TERMP_NOSPACE;
283: }
284:
1.99 schwarze 285: return(0);
1.19 kristaps 286: }
287:
288: /* ARGSUSED */
289: static int
1.134 schwarze 290: pre_PD(DECL_ARGS)
291: {
292:
293: n = n->child;
294: if (0 == n) {
295: mt->pardist = 1;
296: return(0);
297: }
298: assert(MAN_TEXT == n->type);
299: mt->pardist = atoi(n->string);
300: return(0);
301: }
302:
303: /* ARGSUSED */
304: static int
1.88 kristaps 305: pre_alternate(DECL_ARGS)
1.3 kristaps 306: {
1.88 kristaps 307: enum termfont font[2];
308: const struct man_node *nn;
309: int savelit, i;
1.3 kristaps 310:
1.88 kristaps 311: switch (n->tok) {
312: case (MAN_RB):
313: font[0] = TERMFONT_NONE;
314: font[1] = TERMFONT_BOLD;
315: break;
316: case (MAN_RI):
317: font[0] = TERMFONT_NONE;
318: font[1] = TERMFONT_UNDER;
319: break;
320: case (MAN_BR):
321: font[0] = TERMFONT_BOLD;
322: font[1] = TERMFONT_NONE;
323: break;
324: case (MAN_BI):
325: font[0] = TERMFONT_BOLD;
326: font[1] = TERMFONT_UNDER;
327: break;
328: case (MAN_IR):
329: font[0] = TERMFONT_UNDER;
330: font[1] = TERMFONT_NONE;
331: break;
332: case (MAN_IB):
333: font[0] = TERMFONT_UNDER;
334: font[1] = TERMFONT_BOLD;
335: break;
336: default:
337: abort();
338: }
1.35 kristaps 339:
1.88 kristaps 340: savelit = MANT_LITERAL & mt->fl;
341: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 342:
1.88 kristaps 343: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
344: term_fontrepl(p, font[i]);
345: if (savelit && NULL == nn->next)
346: mt->fl |= MANT_LITERAL;
1.135 schwarze 347: print_man_node(p, mt, nn, meta);
1.88 kristaps 348: if (nn->next)
1.4 kristaps 349: p->flags |= TERMP_NOSPACE;
1.3 kristaps 350: }
351:
352: return(0);
353: }
354:
355: /* ARGSUSED */
1.1 kristaps 356: static int
357: pre_B(DECL_ARGS)
358: {
359:
1.52 kristaps 360: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 361: return(1);
1.127 kristaps 362: }
363:
364: /* ARGSUSED */
365: static int
366: pre_OP(DECL_ARGS)
367: {
368:
369: term_word(p, "[");
370: p->flags |= TERMP_NOSPACE;
371:
372: if (NULL != (n = n->child)) {
373: term_fontrepl(p, TERMFONT_BOLD);
374: term_word(p, n->string);
375: }
376: if (NULL != n && NULL != n->next) {
377: term_fontrepl(p, TERMFONT_UNDER);
378: term_word(p, n->next->string);
379: }
380:
381: term_fontrepl(p, TERMFONT_NONE);
382: p->flags |= TERMP_NOSPACE;
383: term_word(p, "]");
384: return(0);
1.89 kristaps 385: }
386:
387: /* ARGSUSED */
388: static int
389: pre_ft(DECL_ARGS)
390: {
391: const char *cp;
392:
393: if (NULL == n->child) {
394: term_fontlast(p);
395: return(0);
396: }
397:
398: cp = n->child->string;
399: switch (*cp) {
400: case ('4'):
401: /* FALLTHROUGH */
402: case ('3'):
403: /* FALLTHROUGH */
404: case ('B'):
405: term_fontrepl(p, TERMFONT_BOLD);
406: break;
407: case ('2'):
408: /* FALLTHROUGH */
409: case ('I'):
410: term_fontrepl(p, TERMFONT_UNDER);
411: break;
412: case ('P'):
413: term_fontlast(p);
414: break;
415: case ('1'):
416: /* FALLTHROUGH */
417: case ('C'):
418: /* FALLTHROUGH */
419: case ('R'):
420: term_fontrepl(p, TERMFONT_NONE);
421: break;
422: default:
423: break;
424: }
425: return(0);
1.83 kristaps 426: }
427:
428: /* ARGSUSED */
429: static int
430: pre_in(DECL_ARGS)
431: {
432: int len, less;
433: size_t v;
434: const char *cp;
435:
436: term_newln(p);
437:
438: if (NULL == n->child) {
439: p->offset = mt->offset;
440: return(0);
441: }
442:
443: cp = n->child->string;
444: less = 0;
445:
446: if ('-' == *cp)
447: less = -1;
448: else if ('+' == *cp)
449: less = 1;
450: else
451: cp--;
452:
453: if ((len = a2width(p, ++cp)) < 0)
454: return(0);
455:
456: v = (size_t)len;
457:
458: if (less < 0)
459: p->offset -= p->offset > v ? v : p->offset;
460: else if (less > 0)
461: p->offset += v;
462: else
463: p->offset = v;
1.95 kristaps 464:
465: /* Don't let this creep beyond the right margin. */
466:
467: if (p->offset > p->rmargin)
468: p->offset = p->rmargin;
1.83 kristaps 469:
470: return(0);
1.1 kristaps 471: }
472:
473:
1.3 kristaps 474: /* ARGSUSED */
1.1 kristaps 475: static int
1.19 kristaps 476: pre_sp(DECL_ARGS)
477: {
1.131 schwarze 478: char *s;
1.77 kristaps 479: size_t i, len;
1.131 schwarze 480: int neg;
1.112 kristaps 481:
482: if ((NULL == n->prev && n->parent)) {
1.132 schwarze 483: switch (n->parent->tok) {
484: case (MAN_SH):
485: /* FALLTHROUGH */
486: case (MAN_SS):
487: /* FALLTHROUGH */
488: case (MAN_PP):
489: /* FALLTHROUGH */
490: case (MAN_LP):
491: /* FALLTHROUGH */
492: case (MAN_P):
493: /* FALLTHROUGH */
1.112 kristaps 494: return(0);
1.132 schwarze 495: default:
496: break;
497: }
1.112 kristaps 498: }
1.19 kristaps 499:
1.131 schwarze 500: neg = 0;
1.82 kristaps 501: switch (n->tok) {
502: case (MAN_br):
503: len = 0;
504: break;
505: default:
1.131 schwarze 506: if (NULL == n->child) {
507: len = 1;
508: break;
509: }
510: s = n->child->string;
511: if ('-' == *s) {
512: neg = 1;
513: s++;
514: }
515: len = a2height(p, s);
1.82 kristaps 516: break;
517: }
1.38 kristaps 518:
1.19 kristaps 519: if (0 == len)
520: term_newln(p);
1.131 schwarze 521: else if (neg)
522: p->skipvsp += len;
523: else
524: for (i = 0; i < len; i++)
525: term_vspace(p);
1.19 kristaps 526:
1.15 kristaps 527: return(0);
528: }
529:
530:
531: /* ARGSUSED */
532: static int
1.19 kristaps 533: pre_HP(DECL_ARGS)
534: {
1.117 schwarze 535: size_t len, one;
1.24 kristaps 536: int ival;
537: const struct man_node *nn;
1.19 kristaps 538:
1.20 kristaps 539: switch (n->type) {
540: case (MAN_BLOCK):
1.134 schwarze 541: print_bvspace(p, n, mt->pardist);
1.24 kristaps 542: return(1);
1.20 kristaps 543: case (MAN_BODY):
544: break;
545: default:
546: return(0);
547: }
548:
1.130 schwarze 549: if ( ! (MANT_LITERAL & mt->fl)) {
1.145 ! schwarze 550: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.139 schwarze 551: p->trailspace = 2;
1.130 schwarze 552: }
553:
1.116 schwarze 554: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 555: ival = -1;
556:
557: /* Calculate offset. */
558:
1.39 kristaps 559: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 560: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 561: len = (size_t)ival;
562:
1.117 schwarze 563: one = term_len(p, 1);
1.121 schwarze 564: if (len < one)
1.117 schwarze 565: len = one;
1.24 kristaps 566:
1.26 kristaps 567: p->offset = mt->offset;
568: p->rmargin = mt->offset + len;
1.24 kristaps 569:
570: if (ival >= 0)
1.116 schwarze 571: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 572:
1.19 kristaps 573: return(1);
574: }
575:
576:
577: /* ARGSUSED */
1.20 kristaps 578: static void
579: post_HP(DECL_ARGS)
580: {
581:
582: switch (n->type) {
583: case (MAN_BODY):
1.136 schwarze 584: term_newln(p);
1.145 ! schwarze 585: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.139 schwarze 586: p->trailspace = 0;
1.26 kristaps 587: p->offset = mt->offset;
1.20 kristaps 588: p->rmargin = p->maxrmargin;
589: break;
590: default:
591: break;
592: }
593: }
594:
595:
596: /* ARGSUSED */
1.19 kristaps 597: static int
1.1 kristaps 598: pre_PP(DECL_ARGS)
599: {
600:
1.19 kristaps 601: switch (n->type) {
602: case (MAN_BLOCK):
1.122 schwarze 603: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.134 schwarze 604: print_bvspace(p, n, mt->pardist);
1.19 kristaps 605: break;
606: default:
1.26 kristaps 607: p->offset = mt->offset;
1.19 kristaps 608: break;
609: }
610:
1.87 kristaps 611: return(MAN_HEAD != n->type);
1.1 kristaps 612: }
613:
614:
1.3 kristaps 615: /* ARGSUSED */
1.1 kristaps 616: static int
1.4 kristaps 617: pre_IP(DECL_ARGS)
618: {
1.22 kristaps 619: const struct man_node *nn;
620: size_t len;
1.94 schwarze 621: int savelit, ival;
1.18 kristaps 622:
1.22 kristaps 623: switch (n->type) {
624: case (MAN_BODY):
625: p->flags |= TERMP_NOSPACE;
626: break;
627: case (MAN_HEAD):
628: p->flags |= TERMP_NOBREAK;
1.139 schwarze 629: p->trailspace = 1;
1.22 kristaps 630: break;
1.23 kristaps 631: case (MAN_BLOCK):
1.134 schwarze 632: print_bvspace(p, n, mt->pardist);
1.23 kristaps 633: /* FALLTHROUGH */
1.22 kristaps 634: default:
635: return(1);
636: }
1.18 kristaps 637:
1.116 schwarze 638: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 639: ival = -1;
1.4 kristaps 640:
1.94 schwarze 641: /* Calculate the offset from the optional second argument. */
1.22 kristaps 642: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 643: if (NULL != (nn = nn->next))
1.77 kristaps 644: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 645: len = (size_t)ival;
1.4 kristaps 646:
1.22 kristaps 647: switch (n->type) {
648: case (MAN_HEAD):
1.23 kristaps 649: /* Handle zero-width lengths. */
650: if (0 == len)
1.77 kristaps 651: len = term_len(p, 1);
1.23 kristaps 652:
1.26 kristaps 653: p->offset = mt->offset;
654: p->rmargin = mt->offset + len;
1.22 kristaps 655: if (ival < 0)
656: break;
1.18 kristaps 657:
1.24 kristaps 658: /* Set the saved left-margin. */
1.116 schwarze 659: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 660:
1.94 schwarze 661: savelit = MANT_LITERAL & mt->fl;
662: mt->fl &= ~MANT_LITERAL;
663:
664: if (n->child)
1.135 schwarze 665: print_man_node(p, mt, n->child, meta);
1.94 schwarze 666:
667: if (savelit)
668: mt->fl |= MANT_LITERAL;
669:
1.22 kristaps 670: return(0);
1.23 kristaps 671: case (MAN_BODY):
1.26 kristaps 672: p->offset = mt->offset + len;
1.140 schwarze 673: p->rmargin = p->maxrmargin > p->offset ?
674: p->maxrmargin : p->offset;
1.23 kristaps 675: break;
1.22 kristaps 676: default:
677: break;
1.18 kristaps 678: }
679:
1.22 kristaps 680: return(1);
681: }
1.18 kristaps 682:
683:
1.22 kristaps 684: /* ARGSUSED */
685: static void
686: post_IP(DECL_ARGS)
687: {
1.4 kristaps 688:
1.22 kristaps 689: switch (n->type) {
690: case (MAN_HEAD):
691: term_flushln(p);
692: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 693: p->trailspace = 0;
1.22 kristaps 694: p->rmargin = p->maxrmargin;
695: break;
696: case (MAN_BODY):
1.94 schwarze 697: term_newln(p);
1.138 schwarze 698: p->offset = mt->offset;
1.22 kristaps 699: break;
700: default:
701: break;
702: }
1.4 kristaps 703: }
704:
705:
706: /* ARGSUSED */
707: static int
1.1 kristaps 708: pre_TP(DECL_ARGS)
709: {
1.23 kristaps 710: const struct man_node *nn;
711: size_t len;
1.94 schwarze 712: int savelit, ival;
1.1 kristaps 713:
1.21 kristaps 714: switch (n->type) {
715: case (MAN_HEAD):
716: p->flags |= TERMP_NOBREAK;
1.139 schwarze 717: p->trailspace = 1;
1.21 kristaps 718: break;
719: case (MAN_BODY):
720: p->flags |= TERMP_NOSPACE;
1.23 kristaps 721: break;
722: case (MAN_BLOCK):
1.134 schwarze 723: print_bvspace(p, n, mt->pardist);
1.23 kristaps 724: /* FALLTHROUGH */
725: default:
726: return(1);
727: }
728:
1.116 schwarze 729: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 730: ival = -1;
731:
732: /* Calculate offset. */
733:
1.116 schwarze 734: if (NULL != (nn = n->parent->head->child))
1.141 schwarze 735: if (nn->string && 0 == (MAN_LINE & nn->flags))
1.77 kristaps 736: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 737: len = (size_t)ival;
738:
739: switch (n->type) {
740: case (MAN_HEAD):
741: /* Handle zero-length properly. */
742: if (0 == len)
1.77 kristaps 743: len = term_len(p, 1);
1.23 kristaps 744:
1.26 kristaps 745: p->offset = mt->offset;
746: p->rmargin = mt->offset + len;
1.23 kristaps 747:
1.94 schwarze 748: savelit = MANT_LITERAL & mt->fl;
749: mt->fl &= ~MANT_LITERAL;
750:
1.23 kristaps 751: /* Don't print same-line elements. */
1.141 schwarze 752: nn = n->child;
753: while (NULL != nn && 0 == (MAN_LINE & nn->flags))
754: nn = nn->next;
755:
756: while (NULL != nn) {
757: print_man_node(p, mt, nn, meta);
758: nn = nn->next;
759: }
1.24 kristaps 760:
1.94 schwarze 761: if (savelit)
762: mt->fl |= MANT_LITERAL;
1.24 kristaps 763: if (ival >= 0)
1.116 schwarze 764: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 765:
1.23 kristaps 766: return(0);
767: case (MAN_BODY):
1.26 kristaps 768: p->offset = mt->offset + len;
1.140 schwarze 769: p->rmargin = p->maxrmargin > p->offset ?
770: p->maxrmargin : p->offset;
1.139 schwarze 771: p->trailspace = 0;
1.130 schwarze 772: p->flags &= ~TERMP_NOBREAK;
1.21 kristaps 773: break;
774: default:
775: break;
776: }
1.16 kristaps 777:
1.21 kristaps 778: return(1);
779: }
1.1 kristaps 780:
781:
1.21 kristaps 782: /* ARGSUSED */
783: static void
784: post_TP(DECL_ARGS)
785: {
1.1 kristaps 786:
1.21 kristaps 787: switch (n->type) {
788: case (MAN_HEAD):
789: term_flushln(p);
790: break;
791: case (MAN_BODY):
1.94 schwarze 792: term_newln(p);
1.138 schwarze 793: p->offset = mt->offset;
1.21 kristaps 794: break;
795: default:
796: break;
797: }
1.1 kristaps 798: }
799:
800:
1.3 kristaps 801: /* ARGSUSED */
1.1 kristaps 802: static int
803: pre_SS(DECL_ARGS)
804: {
1.134 schwarze 805: int i;
1.1 kristaps 806:
1.19 kristaps 807: switch (n->type) {
808: case (MAN_BLOCK):
1.113 kristaps 809: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 810: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
811: mt->offset = term_len(p, p->defindent);
1.24 kristaps 812: /* If following a prior empty `SS', no vspace. */
813: if (n->prev && MAN_SS == n->prev->tok)
814: if (NULL == n->prev->body->child)
815: break;
816: if (NULL == n->prev)
817: break;
1.134 schwarze 818: for (i = 0; i < mt->pardist; i++)
819: term_vspace(p);
1.19 kristaps 820: break;
821: case (MAN_HEAD):
1.52 kristaps 822: term_fontrepl(p, TERMFONT_BOLD);
1.133 schwarze 823: p->offset = term_len(p, 3);
1.19 kristaps 824: break;
1.24 kristaps 825: case (MAN_BODY):
1.26 kristaps 826: p->offset = mt->offset;
1.24 kristaps 827: break;
1.19 kristaps 828: default:
829: break;
830: }
831:
1.1 kristaps 832: return(1);
833: }
834:
835:
1.3 kristaps 836: /* ARGSUSED */
1.1 kristaps 837: static void
838: post_SS(DECL_ARGS)
839: {
840:
1.19 kristaps 841: switch (n->type) {
842: case (MAN_HEAD):
843: term_newln(p);
844: break;
1.24 kristaps 845: case (MAN_BODY):
846: term_newln(p);
847: break;
1.19 kristaps 848: default:
849: break;
850: }
1.1 kristaps 851: }
852:
853:
1.3 kristaps 854: /* ARGSUSED */
1.1 kristaps 855: static int
856: pre_SH(DECL_ARGS)
857: {
1.134 schwarze 858: int i;
1.22 kristaps 859:
1.19 kristaps 860: switch (n->type) {
861: case (MAN_BLOCK):
1.113 kristaps 862: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 863: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
864: mt->offset = term_len(p, p->defindent);
1.22 kristaps 865: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 866: if (n->prev && MAN_SH == n->prev->tok)
867: if (NULL == n->prev->body->child)
868: break;
1.61 kristaps 869: /* If the first macro, no vspae. */
870: if (NULL == n->prev)
871: break;
1.134 schwarze 872: for (i = 0; i < mt->pardist; i++)
873: term_vspace(p);
1.19 kristaps 874: break;
875: case (MAN_HEAD):
1.52 kristaps 876: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 877: p->offset = 0;
878: break;
879: case (MAN_BODY):
1.26 kristaps 880: p->offset = mt->offset;
1.19 kristaps 881: break;
882: default:
883: break;
884: }
1.1 kristaps 885:
886: return(1);
887: }
888:
889:
1.3 kristaps 890: /* ARGSUSED */
1.1 kristaps 891: static void
892: post_SH(DECL_ARGS)
893: {
894:
1.19 kristaps 895: switch (n->type) {
896: case (MAN_HEAD):
897: term_newln(p);
898: break;
899: case (MAN_BODY):
900: term_newln(p);
901: break;
902: default:
903: break;
904: }
1.1 kristaps 905: }
906:
1.26 kristaps 907: /* ARGSUSED */
908: static int
909: pre_RS(DECL_ARGS)
910: {
1.110 kristaps 911: int ival;
912: size_t sz;
1.26 kristaps 913:
914: switch (n->type) {
915: case (MAN_BLOCK):
916: term_newln(p);
917: return(1);
918: case (MAN_HEAD):
919: return(0);
920: default:
921: break;
922: }
923:
1.122 schwarze 924: sz = term_len(p, p->defindent);
1.26 kristaps 925:
1.110 kristaps 926: if (NULL != (n = n->parent->head->child))
927: if ((ival = a2width(p, n->string)) >= 0)
928: sz = (size_t)ival;
1.26 kristaps 929:
1.110 kristaps 930: mt->offset += sz;
1.140 schwarze 931: p->offset = mt->offset;
932: p->rmargin = p->maxrmargin > p->offset ?
933: p->maxrmargin : p->offset;
1.26 kristaps 934:
1.116 schwarze 935: if (++mt->lmarginsz < MAXMARGINS)
936: mt->lmargincur = mt->lmarginsz;
937:
938: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 939: return(1);
940: }
941:
942: /* ARGSUSED */
943: static void
944: post_RS(DECL_ARGS)
945: {
1.110 kristaps 946: int ival;
947: size_t sz;
1.26 kristaps 948:
949: switch (n->type) {
950: case (MAN_BLOCK):
1.110 kristaps 951: return;
1.59 kristaps 952: case (MAN_HEAD):
1.110 kristaps 953: return;
1.26 kristaps 954: default:
955: term_newln(p);
956: break;
957: }
1.110 kristaps 958:
1.122 schwarze 959: sz = term_len(p, p->defindent);
1.110 kristaps 960:
961: if (NULL != (n = n->parent->head->child))
962: if ((ival = a2width(p, n->string)) >= 0)
963: sz = (size_t)ival;
964:
965: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
966: p->offset = mt->offset;
1.116 schwarze 967:
968: if (--mt->lmarginsz < MAXMARGINS)
969: mt->lmargincur = mt->lmarginsz;
1.137 schwarze 970: }
971:
972: /* ARGSUSED */
973: static int
974: pre_UR(DECL_ARGS)
975: {
976:
977: return (MAN_HEAD != n->type);
978: }
979:
980: /* ARGSUSED */
981: static void
982: post_UR(DECL_ARGS)
983: {
984:
985: if (MAN_BLOCK != n->type)
986: return;
987:
988: term_word(p, "<");
989: p->flags |= TERMP_NOSPACE;
990:
991: if (NULL != n->child->child)
992: print_man_node(p, mt, n->child->child, meta);
993:
994: p->flags |= TERMP_NOSPACE;
995: term_word(p, ">");
1.26 kristaps 996: }
997:
1.1 kristaps 998: static void
1.45 kristaps 999: print_man_node(DECL_ARGS)
1.1 kristaps 1000: {
1.65 joerg 1001: size_t rm, rmax;
1.54 kristaps 1002: int c;
1.1 kristaps 1003:
1004: switch (n->type) {
1005: case(MAN_TEXT):
1.97 kristaps 1006: /*
1007: * If we have a blank line, output a vertical space.
1008: * If we have a space as the first character, break
1009: * before printing the line's data.
1010: */
1.96 kristaps 1011: if ('\0' == *n->string) {
1.4 kristaps 1012: term_vspace(p);
1.98 schwarze 1013: return;
1.97 kristaps 1014: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 1015: term_newln(p);
1.54 kristaps 1016:
1.4 kristaps 1017: term_word(p, n->string);
1.130 schwarze 1018: goto out;
1.52 kristaps 1019:
1.102 kristaps 1020: case (MAN_EQN):
1.115 kristaps 1021: term_eqn(p, n->eqn);
1.97 kristaps 1022: return;
1.91 kristaps 1023: case (MAN_TBL):
1.97 kristaps 1024: /*
1025: * Tables are preceded by a newline. Then process a
1026: * table line, which will cause line termination,
1027: */
1.93 kristaps 1028: if (TBL_SPAN_FIRST & n->span->flags)
1029: term_newln(p);
1.92 kristaps 1030: term_tbl(p, n->span);
1.97 kristaps 1031: return;
1.1 kristaps 1032: default:
1033: break;
1034: }
1035:
1.97 kristaps 1036: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
1037: term_fontrepl(p, TERMFONT_NONE);
1038:
1039: c = 1;
1040: if (termacts[n->tok].pre)
1.135 schwarze 1041: c = (*termacts[n->tok].pre)(p, mt, n, meta);
1.97 kristaps 1042:
1.1 kristaps 1043: if (c && n->child)
1.135 schwarze 1044: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 1045:
1.97 kristaps 1046: if (termacts[n->tok].post)
1.135 schwarze 1047: (*termacts[n->tok].post)(p, mt, n, meta);
1.97 kristaps 1048: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
1049: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 1050:
1.130 schwarze 1051: out:
1052: /*
1053: * If we're in a literal context, make sure that words
1054: * together on the same line stay together. This is a
1055: * POST-printing call, so we check the NEXT word. Since
1056: * -man doesn't have nested macros, we don't need to be
1057: * more specific than this.
1058: */
1059: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
1.142 schwarze 1060: (NULL == n->next || MAN_LINE & n->next->flags)) {
1.130 schwarze 1061: rm = p->rmargin;
1062: rmax = p->maxrmargin;
1063: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1064: p->flags |= TERMP_NOSPACE;
1065: if (NULL != n->string && '\0' != *n->string)
1066: term_flushln(p);
1067: else
1068: term_newln(p);
1069: if (rm < rmax && n->parent->tok == MAN_HP) {
1070: p->offset = rm;
1071: p->rmargin = rmax;
1072: } else
1073: p->rmargin = rm;
1074: p->maxrmargin = rmax;
1075: }
1.63 kristaps 1076: if (MAN_EOS & n->flags)
1077: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1078: }
1079:
1080:
1081: static void
1.52 kristaps 1082: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1083: {
1.19 kristaps 1084:
1.135 schwarze 1085: print_man_node(p, mt, n, meta);
1.1 kristaps 1086: if ( ! n->next)
1087: return;
1.135 schwarze 1088: print_man_nodelist(p, mt, n->next, meta);
1.1 kristaps 1089: }
1090:
1091:
1.31 kristaps 1092: static void
1.73 kristaps 1093: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 1094: {
1.123 schwarze 1095: char title[BUFSIZ];
1096: size_t datelen;
1.73 kristaps 1097: const struct man_meta *meta;
1098:
1099: meta = (const struct man_meta *)arg;
1.125 schwarze 1100: assert(meta->title);
1101: assert(meta->msec);
1102: assert(meta->date);
1.1 kristaps 1103:
1.52 kristaps 1104: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1105:
1.69 joerg 1106: term_vspace(p);
1.126 schwarze 1107:
1108: /*
1109: * Temporary, undocumented option to imitate mdoc(7) output.
1110: * In the bottom right corner, use the source instead of
1111: * the title.
1112: */
1113:
1114: if ( ! p->mdocstyle) {
1115: term_vspace(p);
1116: term_vspace(p);
1117: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1118: } else if (meta->source) {
1119: strlcpy(title, meta->source, BUFSIZ);
1120: } else {
1121: title[0] = '\0';
1122: }
1.125 schwarze 1123: datelen = term_strlen(p, meta->date);
1.1 kristaps 1124:
1.126 schwarze 1125: /* Bottom left corner: manual source. */
1126:
1.1 kristaps 1127: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.139 schwarze 1128: p->trailspace = 1;
1.1 kristaps 1129: p->offset = 0;
1.123 schwarze 1130: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1131:
1132: if (meta->source)
1133: term_word(p, meta->source);
1134: term_flushln(p);
1135:
1.126 schwarze 1136: /* At the bottom in the middle: manual date. */
1137:
1.117 schwarze 1138: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1139: p->offset = p->rmargin;
1.123 schwarze 1140: p->rmargin = p->maxrmargin - term_strlen(p, title);
1141: if (p->offset + datelen >= p->rmargin)
1142: p->rmargin = p->offset + datelen;
1143:
1.125 schwarze 1144: term_word(p, meta->date);
1.123 schwarze 1145: term_flushln(p);
1146:
1.126 schwarze 1147: /* Bottom right corner: manual title and section. */
1148:
1.123 schwarze 1149: p->flags &= ~TERMP_NOBREAK;
1150: p->flags |= TERMP_NOSPACE;
1.139 schwarze 1151: p->trailspace = 0;
1.123 schwarze 1152: p->offset = p->rmargin;
1.1 kristaps 1153: p->rmargin = p->maxrmargin;
1154:
1.123 schwarze 1155: term_word(p, title);
1.1 kristaps 1156: term_flushln(p);
1157: }
1158:
1159:
1.31 kristaps 1160: static void
1.73 kristaps 1161: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1162: {
1.46 kristaps 1163: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1164: size_t buflen, titlen;
1.135 schwarze 1165: const struct man_meta *meta;
1.73 kristaps 1166:
1.135 schwarze 1167: meta = (const struct man_meta *)arg;
1168: assert(meta->title);
1169: assert(meta->msec);
1.1 kristaps 1170:
1.135 schwarze 1171: if (meta->vol)
1172: strlcpy(buf, meta->vol, BUFSIZ);
1.126 schwarze 1173: else
1174: buf[0] = '\0';
1.77 kristaps 1175: buflen = term_strlen(p, buf);
1.1 kristaps 1176:
1.126 schwarze 1177: /* Top left corner: manual title and section. */
1178:
1.135 schwarze 1179: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1.77 kristaps 1180: titlen = term_strlen(p, title);
1.1 kristaps 1181:
1.118 schwarze 1182: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.139 schwarze 1183: p->trailspace = 1;
1.1 kristaps 1184: p->offset = 0;
1.57 kristaps 1185: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1186: (p->maxrmargin -
1187: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1188: p->maxrmargin - buflen;
1.1 kristaps 1189:
1190: term_word(p, title);
1191: term_flushln(p);
1192:
1.126 schwarze 1193: /* At the top in the middle: manual volume. */
1194:
1.117 schwarze 1195: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1196: p->offset = p->rmargin;
1.57 kristaps 1197: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1198: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1199:
1200: term_word(p, buf);
1201: term_flushln(p);
1202:
1.126 schwarze 1203: /* Top right corner: title and section, again. */
1204:
1.1 kristaps 1205: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 1206: p->trailspace = 0;
1.57 kristaps 1207: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1208: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1209: p->offset = p->rmargin;
1210: p->rmargin = p->maxrmargin;
1211: term_word(p, title);
1212: term_flushln(p);
1213: }
1.1 kristaps 1214:
1.118 schwarze 1215: p->flags &= ~TERMP_NOSPACE;
1216: p->offset = 0;
1.1 kristaps 1217: p->rmargin = p->maxrmargin;
1.61 kristaps 1218:
1.62 kristaps 1219: /*
1.126 schwarze 1220: * Groff prints three blank lines before the content.
1221: * Do the same, except in the temporary, undocumented
1222: * mode imitating mdoc(7) output.
1.62 kristaps 1223: */
1224:
1.61 kristaps 1225: term_vspace(p);
1.126 schwarze 1226: if ( ! p->mdocstyle) {
1227: term_vspace(p);
1228: term_vspace(p);
1229: }
1.1 kristaps 1230: }
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