Annotation of src/usr.bin/mandoc/man_term.c, Revision 1.77
1.77 ! schwarze 1: /* $Id: man_term.c,v 1.76 2011/09/21 09:57:11 schwarze Exp $ */
1.1 kristaps 2: /*
1.58 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.57 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
1.2 schwarze 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: *
1.2 schwarze 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: */
1.13 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
1.11 schwarze 21: #include <ctype.h>
1.1 kristaps 22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <string.h>
25:
1.37 schwarze 26: #include "mandoc.h"
1.18 schwarze 27: #include "out.h"
28: #include "man.h"
1.1 kristaps 29: #include "term.h"
1.18 schwarze 30: #include "main.h"
1.10 schwarze 31:
1.70 schwarze 32: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.1 kristaps 33:
1.19 schwarze 34: /* FIXME: have PD set the default vspace width. */
35:
1.11 schwarze 36: struct mtermp {
37: int fl;
38: #define MANT_LITERAL (1 << 0)
1.70 schwarze 39: size_t lmargin[MAXMARGINS]; /* margins (incl. visible page) */
40: int lmargincur; /* index of current margin */
41: int lmarginsz; /* actual number of nested margins */
42: size_t offset; /* default offset to visible page */
1.11 schwarze 43: };
44:
1.1 kristaps 45: #define DECL_ARGS struct termp *p, \
1.11 schwarze 46: struct mtermp *mt, \
1.1 kristaps 47: const struct man_node *n, \
48: const struct man_meta *m
49:
50: struct termact {
51: int (*pre)(DECL_ARGS);
52: void (*post)(DECL_ARGS);
1.26 schwarze 53: int flags;
54: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 55: };
56:
1.42 schwarze 57: static int a2width(const struct termp *, const char *);
58: static size_t a2height(const struct termp *, const char *);
1.18 schwarze 59:
1.21 schwarze 60: static void print_man_nodelist(DECL_ARGS);
1.19 schwarze 61: static void print_man_node(DECL_ARGS);
1.41 schwarze 62: static void print_man_head(struct termp *, const void *);
63: static void print_man_foot(struct termp *, const void *);
1.18 schwarze 64: static void print_bvspace(struct termp *,
65: const struct man_node *);
66:
1.51 schwarze 67: static int pre_alternate(DECL_ARGS);
1.1 kristaps 68: static int pre_B(DECL_ARGS);
1.11 schwarze 69: static int pre_HP(DECL_ARGS);
1.1 kristaps 70: static int pre_I(DECL_ARGS);
71: static int pre_IP(DECL_ARGS);
72: static int pre_PP(DECL_ARGS);
1.13 schwarze 73: static int pre_RS(DECL_ARGS);
1.1 kristaps 74: static int pre_SH(DECL_ARGS);
75: static int pre_SS(DECL_ARGS);
76: static int pre_TP(DECL_ARGS);
1.14 schwarze 77: static int pre_ign(DECL_ARGS);
1.45 schwarze 78: static int pre_in(DECL_ARGS);
79: static int pre_literal(DECL_ARGS);
1.11 schwarze 80: static int pre_sp(DECL_ARGS);
1.52 schwarze 81: static int pre_ft(DECL_ARGS);
1.1 kristaps 82:
1.11 schwarze 83: static void post_IP(DECL_ARGS);
84: static void post_HP(DECL_ARGS);
1.13 schwarze 85: static void post_RS(DECL_ARGS);
1.1 kristaps 86: static void post_SH(DECL_ARGS);
87: static void post_SS(DECL_ARGS);
1.11 schwarze 88: static void post_TP(DECL_ARGS);
1.1 kristaps 89:
1.17 schwarze 90: static const struct termact termacts[MAN_MAX] = {
1.45 schwarze 91: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.26 schwarze 92: { NULL, NULL, 0 }, /* TH */
93: { pre_SH, post_SH, 0 }, /* SH */
94: { pre_SS, post_SS, 0 }, /* SS */
95: { pre_TP, post_TP, 0 }, /* TP */
96: { pre_PP, NULL, 0 }, /* LP */
97: { pre_PP, NULL, 0 }, /* PP */
98: { pre_PP, NULL, 0 }, /* P */
99: { pre_IP, post_IP, 0 }, /* IP */
100: { pre_HP, post_HP, 0 }, /* HP */
101: { NULL, NULL, 0 }, /* SM */
102: { pre_B, NULL, 0 }, /* SB */
1.51 schwarze 103: { pre_alternate, NULL, 0 }, /* BI */
104: { pre_alternate, NULL, 0 }, /* IB */
105: { pre_alternate, NULL, 0 }, /* BR */
106: { pre_alternate, NULL, 0 }, /* RB */
1.26 schwarze 107: { NULL, NULL, 0 }, /* R */
108: { pre_B, NULL, 0 }, /* B */
109: { pre_I, NULL, 0 }, /* I */
1.51 schwarze 110: { pre_alternate, NULL, 0 }, /* IR */
111: { pre_alternate, NULL, 0 }, /* RI */
1.62 schwarze 112: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.26 schwarze 113: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.45 schwarze 114: { pre_literal, NULL, 0 }, /* nf */
115: { pre_literal, NULL, 0 }, /* fi */
1.26 schwarze 116: { NULL, NULL, 0 }, /* RE */
117: { pre_RS, post_RS, 0 }, /* RS */
118: { pre_ign, NULL, 0 }, /* DT */
119: { pre_ign, NULL, 0 }, /* UC */
120: { pre_ign, NULL, 0 }, /* PD */
1.36 schwarze 121: { pre_ign, NULL, 0 }, /* AT */
1.45 schwarze 122: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.52 schwarze 123: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.1 kristaps 124: };
1.11 schwarze 125:
1.1 kristaps 126:
127:
1.16 schwarze 128: void
1.18 schwarze 129: terminal_man(void *arg, const struct man *man)
1.1 kristaps 130: {
1.18 schwarze 131: struct termp *p;
132: const struct man_node *n;
133: const struct man_meta *m;
134: struct mtermp mt;
135:
136: p = (struct termp *)arg;
137:
1.77 ! schwarze 138: if (0 == p->defindent)
! 139: p->defindent = 7;
! 140:
1.39 schwarze 141: p->overstep = 0;
1.32 schwarze 142: p->maxrmargin = p->defrmargin;
1.42 schwarze 143: p->tabwidth = term_len(p, 5);
1.27 schwarze 144:
1.18 schwarze 145: if (NULL == p->symtab)
1.68 schwarze 146: p->symtab = mchars_alloc();
1.18 schwarze 147:
148: n = man_node(man);
149: m = man_meta(man);
1.1 kristaps 150:
1.41 schwarze 151: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 152: p->flags |= TERMP_NOSPACE;
1.11 schwarze 153:
1.70 schwarze 154: memset(&mt, 0, sizeof(struct mtermp));
155:
1.77 ! schwarze 156: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
! 157: mt.offset = term_len(p, p->defindent);
1.11 schwarze 158:
1.18 schwarze 159: if (n->child)
1.21 schwarze 160: print_man_nodelist(p, &mt, n->child, m);
1.41 schwarze 161:
162: term_end(p);
1.1 kristaps 163: }
164:
165:
1.42 schwarze 166: static size_t
167: a2height(const struct termp *p, const char *cp)
1.11 schwarze 168: {
1.18 schwarze 169: struct roffsu su;
1.11 schwarze 170:
1.42 schwarze 171: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.69 schwarze 172: SCALE_VS_INIT(&su, atoi(cp));
1.11 schwarze 173:
1.42 schwarze 174: return(term_vspan(p, &su));
1.11 schwarze 175: }
176:
177:
178: static int
1.42 schwarze 179: a2width(const struct termp *p, const char *cp)
1.11 schwarze 180: {
1.18 schwarze 181: struct roffsu su;
1.11 schwarze 182:
1.42 schwarze 183: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.18 schwarze 184: return(-1);
185:
1.42 schwarze 186: return((int)term_hspan(p, &su));
1.18 schwarze 187: }
1.11 schwarze 188:
1.69 schwarze 189: /*
190: * Printing leading vertical space before a block.
191: * This is used for the paragraph macros.
192: * The rules are pretty simple, since there's very little nesting going
193: * on here. Basically, if we're the first within another block (SS/SH),
194: * then don't emit vertical space. If we are (RS), then do. If not the
195: * first, print it.
196: */
1.18 schwarze 197: static void
198: print_bvspace(struct termp *p, const struct man_node *n)
199: {
1.69 schwarze 200:
1.18 schwarze 201: term_newln(p);
1.64 schwarze 202:
1.69 schwarze 203: if (n->body && n->body->child)
204: if (MAN_TBL == n->body->child->type)
205: return;
1.11 schwarze 206:
1.69 schwarze 207: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
208: if (NULL == n->prev)
209: return;
1.11 schwarze 210:
1.18 schwarze 211: term_vspace(p);
1.14 schwarze 212: }
213:
214: /* ARGSUSED */
215: static int
216: pre_ign(DECL_ARGS)
217: {
218:
219: return(0);
1.11 schwarze 220: }
221:
222:
1.1 kristaps 223: /* ARGSUSED */
224: static int
225: pre_I(DECL_ARGS)
226: {
227:
1.21 schwarze 228: term_fontrepl(p, TERMFONT_UNDER);
1.1 kristaps 229: return(1);
230: }
231:
232:
233: /* ARGSUSED */
1.11 schwarze 234: static int
1.45 schwarze 235: pre_literal(DECL_ARGS)
1.11 schwarze 236: {
237:
1.45 schwarze 238: term_newln(p);
1.53 schwarze 239:
240: if (MAN_nf == n->tok)
1.45 schwarze 241: mt->fl |= MANT_LITERAL;
1.53 schwarze 242: else
1.45 schwarze 243: mt->fl &= ~MANT_LITERAL;
244:
1.72 schwarze 245: /*
246: * Unlike .IP and .TP, .HP does not have a HEAD.
247: * So in case a second call to term_flushln() is needed,
248: * indentation has to be set up explicitly.
249: */
250: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.76 schwarze 251: p->offset = p->rmargin;
1.72 schwarze 252: p->rmargin = p->maxrmargin;
253: p->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);
254: p->flags |= TERMP_NOSPACE;
255: }
256:
1.62 schwarze 257: return(0);
1.11 schwarze 258: }
259:
260: /* ARGSUSED */
261: static int
1.51 schwarze 262: pre_alternate(DECL_ARGS)
1.1 kristaps 263: {
1.51 schwarze 264: enum termfont font[2];
265: const struct man_node *nn;
266: int savelit, i;
1.1 kristaps 267:
1.51 schwarze 268: switch (n->tok) {
269: case (MAN_RB):
270: font[0] = TERMFONT_NONE;
271: font[1] = TERMFONT_BOLD;
272: break;
273: case (MAN_RI):
274: font[0] = TERMFONT_NONE;
275: font[1] = TERMFONT_UNDER;
276: break;
277: case (MAN_BR):
278: font[0] = TERMFONT_BOLD;
279: font[1] = TERMFONT_NONE;
280: break;
281: case (MAN_BI):
282: font[0] = TERMFONT_BOLD;
283: font[1] = TERMFONT_UNDER;
284: break;
285: case (MAN_IR):
286: font[0] = TERMFONT_UNDER;
287: font[1] = TERMFONT_NONE;
288: break;
289: case (MAN_IB):
290: font[0] = TERMFONT_UNDER;
291: font[1] = TERMFONT_BOLD;
292: break;
293: default:
294: abort();
295: }
1.17 schwarze 296:
1.51 schwarze 297: savelit = MANT_LITERAL & mt->fl;
298: mt->fl &= ~MANT_LITERAL;
1.17 schwarze 299:
1.51 schwarze 300: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
301: term_fontrepl(p, font[i]);
302: if (savelit && NULL == nn->next)
303: mt->fl |= MANT_LITERAL;
1.19 schwarze 304: print_man_node(p, mt, nn, m);
1.51 schwarze 305: if (nn->next)
1.1 kristaps 306: p->flags |= TERMP_NOSPACE;
307: }
1.17 schwarze 308:
1.1 kristaps 309: return(0);
310: }
311:
312: /* ARGSUSED */
313: static int
314: pre_B(DECL_ARGS)
315: {
316:
1.21 schwarze 317: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 318: return(1);
1.52 schwarze 319: }
320:
321: /* ARGSUSED */
322: static int
323: pre_ft(DECL_ARGS)
324: {
325: const char *cp;
326:
327: if (NULL == n->child) {
328: term_fontlast(p);
329: return(0);
330: }
331:
332: cp = n->child->string;
333: switch (*cp) {
334: case ('4'):
335: /* FALLTHROUGH */
336: case ('3'):
337: /* FALLTHROUGH */
338: case ('B'):
339: term_fontrepl(p, TERMFONT_BOLD);
340: break;
341: case ('2'):
342: /* FALLTHROUGH */
343: case ('I'):
344: term_fontrepl(p, TERMFONT_UNDER);
345: break;
346: case ('P'):
347: term_fontlast(p);
348: break;
349: case ('1'):
350: /* FALLTHROUGH */
351: case ('C'):
352: /* FALLTHROUGH */
353: case ('R'):
354: term_fontrepl(p, TERMFONT_NONE);
355: break;
356: default:
357: break;
358: }
359: return(0);
1.1 kristaps 360: }
361:
362: /* ARGSUSED */
363: static int
1.45 schwarze 364: pre_in(DECL_ARGS)
1.11 schwarze 365: {
1.45 schwarze 366: int len, less;
367: size_t v;
368: const char *cp;
369:
370: term_newln(p);
371:
372: if (NULL == n->child) {
373: p->offset = mt->offset;
374: return(0);
375: }
1.11 schwarze 376:
1.45 schwarze 377: cp = n->child->string;
378: less = 0;
1.11 schwarze 379:
1.45 schwarze 380: if ('-' == *cp)
381: less = -1;
382: else if ('+' == *cp)
383: less = 1;
384: else
385: cp--;
386:
387: if ((len = a2width(p, ++cp)) < 0)
388: return(0);
389:
390: v = (size_t)len;
391:
392: if (less < 0)
393: p->offset -= p->offset > v ? v : p->offset;
394: else if (less > 0)
395: p->offset += v;
396: else
397: p->offset = v;
1.59 schwarze 398:
399: /* Don't let this creep beyond the right margin. */
400:
401: if (p->offset > p->rmargin)
402: p->offset = p->rmargin;
1.11 schwarze 403:
404: return(0);
405: }
406:
407:
408: /* ARGSUSED */
409: static int
1.45 schwarze 410: pre_sp(DECL_ARGS)
1.8 schwarze 411: {
1.45 schwarze 412: size_t i, len;
413:
1.69 schwarze 414: if ((NULL == n->prev && n->parent)) {
415: if (MAN_SS == n->parent->tok)
416: return(0);
417: if (MAN_SH == n->parent->tok)
418: return(0);
419: }
420:
1.45 schwarze 421: switch (n->tok) {
422: case (MAN_br):
423: len = 0;
424: break;
425: default:
426: len = n->child ? a2height(p, n->child->string) : 1;
427: break;
428: }
429:
430: if (0 == len)
431: term_newln(p);
432: for (i = 0; i < len; i++)
433: term_vspace(p);
1.8 schwarze 434:
435: return(0);
436: }
437:
438:
439: /* ARGSUSED */
440: static int
1.11 schwarze 441: pre_HP(DECL_ARGS)
442: {
1.72 schwarze 443: size_t len, one;
1.11 schwarze 444: int ival;
445: const struct man_node *nn;
446:
447: switch (n->type) {
448: case (MAN_BLOCK):
1.18 schwarze 449: print_bvspace(p, n);
1.11 schwarze 450: return(1);
451: case (MAN_BODY):
452: p->flags |= TERMP_NOBREAK;
453: p->flags |= TERMP_TWOSPACE;
454: break;
455: default:
456: return(0);
457: }
458:
1.70 schwarze 459: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 460: ival = -1;
461:
462: /* Calculate offset. */
463:
464: if (NULL != (nn = n->parent->head->child))
1.42 schwarze 465: if ((ival = a2width(p, nn->string)) >= 0)
1.11 schwarze 466: len = (size_t)ival;
467:
1.72 schwarze 468: one = term_len(p, 1);
1.76 schwarze 469: if (len < one)
1.72 schwarze 470: len = one;
1.11 schwarze 471:
1.13 schwarze 472: p->offset = mt->offset;
473: p->rmargin = mt->offset + len;
1.11 schwarze 474:
475: if (ival >= 0)
1.70 schwarze 476: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.11 schwarze 477:
478: return(1);
479: }
480:
481:
482: /* ARGSUSED */
483: static void
484: post_HP(DECL_ARGS)
485: {
486:
487: switch (n->type) {
488: case (MAN_BLOCK):
489: term_flushln(p);
490: break;
491: case (MAN_BODY):
492: term_flushln(p);
493: p->flags &= ~TERMP_NOBREAK;
494: p->flags &= ~TERMP_TWOSPACE;
1.13 schwarze 495: p->offset = mt->offset;
1.11 schwarze 496: p->rmargin = p->maxrmargin;
497: break;
498: default:
499: break;
500: }
501: }
502:
503:
504: /* ARGSUSED */
505: static int
1.1 kristaps 506: pre_PP(DECL_ARGS)
507: {
508:
1.11 schwarze 509: switch (n->type) {
510: case (MAN_BLOCK):
1.77 ! schwarze 511: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.18 schwarze 512: print_bvspace(p, n);
1.11 schwarze 513: break;
514: default:
1.13 schwarze 515: p->offset = mt->offset;
1.11 schwarze 516: break;
517: }
518:
1.54 schwarze 519: return(MAN_HEAD != n->type);
1.1 kristaps 520: }
521:
522:
523: /* ARGSUSED */
524: static int
525: pre_IP(DECL_ARGS)
526: {
1.11 schwarze 527: const struct man_node *nn;
528: size_t len;
1.57 schwarze 529: int savelit, ival;
1.11 schwarze 530:
531: switch (n->type) {
532: case (MAN_BODY):
533: p->flags |= TERMP_NOSPACE;
534: break;
535: case (MAN_HEAD):
536: p->flags |= TERMP_NOBREAK;
537: break;
538: case (MAN_BLOCK):
1.18 schwarze 539: print_bvspace(p, n);
1.11 schwarze 540: /* FALLTHROUGH */
541: default:
542: return(1);
543: }
544:
1.70 schwarze 545: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 546: ival = -1;
547:
1.57 schwarze 548: /* Calculate the offset from the optional second argument. */
1.11 schwarze 549: if (NULL != (nn = n->parent->head->child))
1.57 schwarze 550: if (NULL != (nn = nn->next))
1.42 schwarze 551: if ((ival = a2width(p, nn->string)) >= 0)
1.11 schwarze 552: len = (size_t)ival;
553:
554: switch (n->type) {
555: case (MAN_HEAD):
556: /* Handle zero-width lengths. */
557: if (0 == len)
1.42 schwarze 558: len = term_len(p, 1);
1.11 schwarze 559:
1.13 schwarze 560: p->offset = mt->offset;
561: p->rmargin = mt->offset + len;
1.11 schwarze 562: if (ival < 0)
563: break;
564:
565: /* Set the saved left-margin. */
1.70 schwarze 566: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.1 kristaps 567:
1.57 schwarze 568: savelit = MANT_LITERAL & mt->fl;
569: mt->fl &= ~MANT_LITERAL;
570:
571: if (n->child)
572: print_man_node(p, mt, n->child, m);
573:
574: if (savelit)
575: mt->fl |= MANT_LITERAL;
576:
1.11 schwarze 577: return(0);
578: case (MAN_BODY):
1.13 schwarze 579: p->offset = mt->offset + len;
1.11 schwarze 580: p->rmargin = p->maxrmargin;
581: break;
582: default:
583: break;
584: }
1.1 kristaps 585:
1.11 schwarze 586: return(1);
587: }
1.1 kristaps 588:
589:
1.11 schwarze 590: /* ARGSUSED */
591: static void
592: post_IP(DECL_ARGS)
593: {
1.4 schwarze 594:
1.11 schwarze 595: switch (n->type) {
596: case (MAN_HEAD):
597: term_flushln(p);
598: p->flags &= ~TERMP_NOBREAK;
599: p->rmargin = p->maxrmargin;
600: break;
601: case (MAN_BODY):
1.57 schwarze 602: term_newln(p);
1.11 schwarze 603: break;
604: default:
605: break;
606: }
1.1 kristaps 607: }
608:
609:
610: /* ARGSUSED */
611: static int
612: pre_TP(DECL_ARGS)
613: {
1.11 schwarze 614: const struct man_node *nn;
615: size_t len;
1.57 schwarze 616: int savelit, ival;
1.11 schwarze 617:
618: switch (n->type) {
619: case (MAN_HEAD):
620: p->flags |= TERMP_NOBREAK;
621: break;
622: case (MAN_BODY):
623: p->flags |= TERMP_NOSPACE;
624: break;
625: case (MAN_BLOCK):
1.18 schwarze 626: print_bvspace(p, n);
1.11 schwarze 627: /* FALLTHROUGH */
628: default:
629: return(1);
630: }
631:
1.70 schwarze 632: len = (size_t)mt->lmargin[mt->lmargincur];
1.11 schwarze 633: ival = -1;
634:
635: /* Calculate offset. */
1.1 kristaps 636:
1.70 schwarze 637: if (NULL != (nn = n->parent->head->child))
1.75 schwarze 638: if (nn->string && nn->parent->line == nn->line)
1.42 schwarze 639: if ((ival = a2width(p, nn->string)) >= 0)
1.11 schwarze 640: len = (size_t)ival;
1.8 schwarze 641:
1.11 schwarze 642: switch (n->type) {
643: case (MAN_HEAD):
644: /* Handle zero-length properly. */
645: if (0 == len)
1.42 schwarze 646: len = term_len(p, 1);
1.11 schwarze 647:
1.13 schwarze 648: p->offset = mt->offset;
649: p->rmargin = mt->offset + len;
1.11 schwarze 650:
1.57 schwarze 651: savelit = MANT_LITERAL & mt->fl;
652: mt->fl &= ~MANT_LITERAL;
653:
1.11 schwarze 654: /* Don't print same-line elements. */
1.57 schwarze 655: for (nn = n->child; nn; nn = nn->next)
1.11 schwarze 656: if (nn->line > n->line)
1.19 schwarze 657: print_man_node(p, mt, nn, m);
1.11 schwarze 658:
1.57 schwarze 659: if (savelit)
660: mt->fl |= MANT_LITERAL;
1.11 schwarze 661: if (ival >= 0)
1.70 schwarze 662: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.11 schwarze 663:
664: return(0);
665: case (MAN_BODY):
1.13 schwarze 666: p->offset = mt->offset + len;
1.11 schwarze 667: p->rmargin = p->maxrmargin;
668: break;
669: default:
670: break;
671: }
1.1 kristaps 672:
1.11 schwarze 673: return(1);
674: }
1.1 kristaps 675:
676:
1.11 schwarze 677: /* ARGSUSED */
678: static void
679: post_TP(DECL_ARGS)
680: {
1.1 kristaps 681:
1.11 schwarze 682: switch (n->type) {
683: case (MAN_HEAD):
684: term_flushln(p);
685: p->flags &= ~TERMP_NOBREAK;
686: p->flags &= ~TERMP_TWOSPACE;
687: p->rmargin = p->maxrmargin;
688: break;
689: case (MAN_BODY):
1.57 schwarze 690: term_newln(p);
1.11 schwarze 691: break;
692: default:
693: break;
694: }
1.1 kristaps 695: }
696:
697:
698: /* ARGSUSED */
699: static int
700: pre_SS(DECL_ARGS)
701: {
702:
1.11 schwarze 703: switch (n->type) {
704: case (MAN_BLOCK):
1.69 schwarze 705: mt->fl &= ~MANT_LITERAL;
1.77 ! schwarze 706: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
! 707: mt->offset = term_len(p, p->defindent);
1.11 schwarze 708: /* If following a prior empty `SS', no vspace. */
709: if (n->prev && MAN_SS == n->prev->tok)
710: if (NULL == n->prev->body->child)
711: break;
712: if (NULL == n->prev)
713: break;
714: term_vspace(p);
715: break;
716: case (MAN_HEAD):
1.21 schwarze 717: term_fontrepl(p, TERMFONT_BOLD);
1.77 ! schwarze 718: p->offset = term_len(p, p->defindent/2);
1.11 schwarze 719: break;
720: case (MAN_BODY):
1.13 schwarze 721: p->offset = mt->offset;
1.11 schwarze 722: break;
723: default:
724: break;
725: }
726:
1.1 kristaps 727: return(1);
728: }
729:
730:
731: /* ARGSUSED */
732: static void
733: post_SS(DECL_ARGS)
734: {
735:
1.11 schwarze 736: switch (n->type) {
737: case (MAN_HEAD):
738: term_newln(p);
739: break;
740: case (MAN_BODY):
741: term_newln(p);
742: break;
743: default:
744: break;
745: }
1.1 kristaps 746: }
747:
748:
749: /* ARGSUSED */
750: static int
751: pre_SH(DECL_ARGS)
752: {
753:
1.11 schwarze 754: switch (n->type) {
755: case (MAN_BLOCK):
1.69 schwarze 756: mt->fl &= ~MANT_LITERAL;
1.77 ! schwarze 757: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
! 758: mt->offset = term_len(p, p->defindent);
1.11 schwarze 759: /* If following a prior empty `SH', no vspace. */
760: if (n->prev && MAN_SH == n->prev->tok)
761: if (NULL == n->prev->body->child)
762: break;
1.29 schwarze 763: /* If the first macro, no vspae. */
764: if (NULL == n->prev)
765: break;
1.11 schwarze 766: term_vspace(p);
767: break;
768: case (MAN_HEAD):
1.21 schwarze 769: term_fontrepl(p, TERMFONT_BOLD);
1.11 schwarze 770: p->offset = 0;
771: break;
772: case (MAN_BODY):
1.13 schwarze 773: p->offset = mt->offset;
1.11 schwarze 774: break;
775: default:
776: break;
777: }
778:
1.1 kristaps 779: return(1);
780: }
781:
782:
783: /* ARGSUSED */
784: static void
785: post_SH(DECL_ARGS)
786: {
787:
1.11 schwarze 788: switch (n->type) {
789: case (MAN_HEAD):
790: term_newln(p);
791: break;
792: case (MAN_BODY):
793: term_newln(p);
794: break;
795: default:
1.13 schwarze 796: break;
797: }
798: }
799:
800: /* ARGSUSED */
801: static int
802: pre_RS(DECL_ARGS)
803: {
1.69 schwarze 804: int ival;
805: size_t sz;
1.13 schwarze 806:
807: switch (n->type) {
808: case (MAN_BLOCK):
809: term_newln(p);
810: return(1);
811: case (MAN_HEAD):
812: return(0);
813: default:
814: break;
815: }
816:
1.77 ! schwarze 817: sz = term_len(p, p->defindent);
1.13 schwarze 818:
1.69 schwarze 819: if (NULL != (n = n->parent->head->child))
820: if ((ival = a2width(p, n->string)) >= 0)
821: sz = (size_t)ival;
1.13 schwarze 822:
1.69 schwarze 823: mt->offset += sz;
1.74 schwarze 824: p->rmargin = p->maxrmargin;
825: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.13 schwarze 826:
1.70 schwarze 827: if (++mt->lmarginsz < MAXMARGINS)
828: mt->lmargincur = mt->lmarginsz;
829:
830: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.13 schwarze 831: return(1);
832: }
833:
834: /* ARGSUSED */
835: static void
836: post_RS(DECL_ARGS)
837: {
1.69 schwarze 838: int ival;
839: size_t sz;
1.13 schwarze 840:
841: switch (n->type) {
842: case (MAN_BLOCK):
1.69 schwarze 843: return;
1.27 schwarze 844: case (MAN_HEAD):
1.69 schwarze 845: return;
1.13 schwarze 846: default:
847: term_newln(p);
1.11 schwarze 848: break;
849: }
1.69 schwarze 850:
1.77 ! schwarze 851: sz = term_len(p, p->defindent);
1.69 schwarze 852:
853: if (NULL != (n = n->parent->head->child))
854: if ((ival = a2width(p, n->string)) >= 0)
855: sz = (size_t)ival;
856:
857: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
858: p->offset = mt->offset;
1.70 schwarze 859:
860: if (--mt->lmarginsz < MAXMARGINS)
861: mt->lmargincur = mt->lmarginsz;
1.47 schwarze 862: }
863:
1.1 kristaps 864: static void
1.19 schwarze 865: print_man_node(DECL_ARGS)
1.1 kristaps 866: {
1.32 schwarze 867: size_t rm, rmax;
1.21 schwarze 868: int c;
1.1 kristaps 869:
870: switch (n->type) {
871: case(MAN_TEXT):
1.61 schwarze 872: /*
873: * If we have a blank line, output a vertical space.
874: * If we have a space as the first character, break
875: * before printing the line's data.
876: */
1.60 schwarze 877: if ('\0' == *n->string) {
1.1 kristaps 878: term_vspace(p);
1.61 schwarze 879: return;
880: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.60 schwarze 881: term_newln(p);
1.21 schwarze 882:
1.1 kristaps 883: term_word(p, n->string);
1.21 schwarze 884:
1.61 schwarze 885: /*
886: * If we're in a literal context, make sure that words
887: * togehter on the same line stay together. This is a
888: * POST-printing call, so we check the NEXT word. Since
889: * -man doesn't have nested macros, we don't need to be
890: * more specific than this.
891: */
1.72 schwarze 892: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
1.61 schwarze 893: (NULL == n->next ||
894: n->next->line > n->line)) {
1.32 schwarze 895: rm = p->rmargin;
896: rmax = p->maxrmargin;
1.29 schwarze 897: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.11 schwarze 898: p->flags |= TERMP_NOSPACE;
899: term_flushln(p);
1.32 schwarze 900: p->rmargin = rm;
901: p->maxrmargin = rmax;
1.11 schwarze 902: }
1.63 schwarze 903:
904: if (MAN_EOS & n->flags)
905: p->flags |= TERMP_SENTENCE;
1.66 schwarze 906: return;
907: case (MAN_EQN):
1.71 schwarze 908: term_eqn(p, n->eqn);
1.61 schwarze 909: return;
1.58 schwarze 910: case (MAN_TBL):
1.61 schwarze 911: /*
912: * Tables are preceded by a newline. Then process a
913: * table line, which will cause line termination,
914: */
1.58 schwarze 915: if (TBL_SPAN_FIRST & n->span->flags)
916: term_newln(p);
917: term_tbl(p, n->span);
1.61 schwarze 918: return;
1.1 kristaps 919: default:
920: break;
921: }
922:
1.61 schwarze 923: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
924: term_fontrepl(p, TERMFONT_NONE);
925:
926: c = 1;
927: if (termacts[n->tok].pre)
928: c = (*termacts[n->tok].pre)(p, mt, n, m);
929:
1.1 kristaps 930: if (c && n->child)
1.21 schwarze 931: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 932:
1.61 schwarze 933: if (termacts[n->tok].post)
934: (*termacts[n->tok].post)(p, mt, n, m);
935: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
936: term_fontrepl(p, TERMFONT_NONE);
1.30 schwarze 937:
938: if (MAN_EOS & n->flags)
939: p->flags |= TERMP_SENTENCE;
1.1 kristaps 940: }
941:
942:
943: static void
1.21 schwarze 944: print_man_nodelist(DECL_ARGS)
1.1 kristaps 945: {
1.11 schwarze 946:
1.19 schwarze 947: print_man_node(p, mt, n, m);
1.1 kristaps 948: if ( ! n->next)
949: return;
1.21 schwarze 950: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 951: }
952:
953:
954: static void
1.41 schwarze 955: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 956: {
1.41 schwarze 957: const struct man_meta *meta;
958:
959: meta = (const struct man_meta *)arg;
1.21 schwarze 960:
961: term_fontrepl(p, TERMFONT_NONE);
1.1 kristaps 962:
1.38 schwarze 963: term_vspace(p);
964: term_vspace(p);
1.1 kristaps 965: term_vspace(p);
966:
967: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.65 schwarze 968: p->rmargin = p->maxrmargin - term_strlen(p, meta->date);
1.1 kristaps 969: p->offset = 0;
1.46 schwarze 970:
971: /* term_strlen() can return zero. */
972: if (p->rmargin == p->maxrmargin)
973: p->rmargin--;
1.1 kristaps 974:
975: if (meta->source)
976: term_word(p, meta->source);
977: if (meta->source)
978: term_word(p, "");
979: term_flushln(p);
980:
1.72 schwarze 981: p->flags |= TERMP_NOSPACE;
1.1 kristaps 982: p->offset = p->rmargin;
983: p->rmargin = p->maxrmargin;
984: p->flags &= ~TERMP_NOBREAK;
985:
1.65 schwarze 986: term_word(p, meta->date);
1.1 kristaps 987: term_flushln(p);
988: }
989:
990:
991: static void
1.41 schwarze 992: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 993: {
1.20 schwarze 994: char buf[BUFSIZ], title[BUFSIZ];
1.25 schwarze 995: size_t buflen, titlen;
1.41 schwarze 996: const struct man_meta *m;
997:
998: m = (const struct man_meta *)arg;
1.1 kristaps 999:
1.29 schwarze 1000: /*
1001: * Note that old groff would spit out some spaces before the
1002: * header. We discontinue this strange behaviour, but at one
1003: * point we did so here.
1004: */
1005:
1.73 schwarze 1006: p->offset = 0;
1.1 kristaps 1007: p->rmargin = p->maxrmargin;
1.27 schwarze 1008:
1.20 schwarze 1009: buf[0] = title[0] = '\0';
1.1 kristaps 1010:
1.20 schwarze 1011: if (m->vol)
1012: strlcpy(buf, m->vol, BUFSIZ);
1.42 schwarze 1013: buflen = term_strlen(p, buf);
1.1 kristaps 1014:
1.31 schwarze 1015: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.42 schwarze 1016: titlen = term_strlen(p, title);
1.1 kristaps 1017:
1.73 schwarze 1018: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1019: p->offset = 0;
1.25 schwarze 1020: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.42 schwarze 1021: (p->maxrmargin -
1022: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.25 schwarze 1023: p->maxrmargin - buflen;
1.1 kristaps 1024:
1025: term_word(p, title);
1026: term_flushln(p);
1027:
1.72 schwarze 1028: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1029: p->offset = p->rmargin;
1.25 schwarze 1030: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1031: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1032:
1033: term_word(p, buf);
1034: term_flushln(p);
1035:
1036: p->flags &= ~TERMP_NOBREAK;
1.25 schwarze 1037: if (p->rmargin + titlen <= p->maxrmargin) {
1.72 schwarze 1038: p->flags |= TERMP_NOSPACE;
1.25 schwarze 1039: p->offset = p->rmargin;
1040: p->rmargin = p->maxrmargin;
1041: term_word(p, title);
1042: term_flushln(p);
1043: }
1.1 kristaps 1044:
1.73 schwarze 1045: p->flags &= ~TERMP_NOSPACE;
1046: p->offset = 0;
1.1 kristaps 1047: p->rmargin = p->maxrmargin;
1.29 schwarze 1048:
1049: /*
1050: * Groff likes to have some leading spaces before content. Well
1051: * that's fine by me.
1052: */
1053:
1054: term_vspace(p);
1055: term_vspace(p);
1056: term_vspace(p);
1.1 kristaps 1057: }
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