Annotation of mandoc/man_term.c, Revision 1.135
1.135 ! schwarze 1: /* $Id: man_term.c,v 1.134 2012/07/29 12:35:42 schwarze Exp $ */
1.1 kristaps 2: /*
1.128 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.130 schwarze 4: * Copyright (c) 2010, 2011, 2012 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);
1.127 kristaps 81: static int pre_alternate(DECL_ARGS);
82: static int pre_ft(DECL_ARGS);
1.29 kristaps 83: static int pre_ign(DECL_ARGS);
1.83 kristaps 84: static int pre_in(DECL_ARGS);
1.84 kristaps 85: static int pre_literal(DECL_ARGS);
1.19 kristaps 86: static int pre_sp(DECL_ARGS);
1.1 kristaps 87:
1.22 kristaps 88: static void post_IP(DECL_ARGS);
1.20 kristaps 89: static void post_HP(DECL_ARGS);
1.26 kristaps 90: static void post_RS(DECL_ARGS);
1.1 kristaps 91: static void post_SH(DECL_ARGS);
92: static void post_SS(DECL_ARGS);
1.21 kristaps 93: static void post_TP(DECL_ARGS);
1.1 kristaps 94:
1.32 kristaps 95: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 96: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 97: { NULL, NULL, 0 }, /* TH */
98: { pre_SH, post_SH, 0 }, /* SH */
99: { pre_SS, post_SS, 0 }, /* SS */
100: { pre_TP, post_TP, 0 }, /* TP */
101: { pre_PP, NULL, 0 }, /* LP */
102: { pre_PP, NULL, 0 }, /* PP */
103: { pre_PP, NULL, 0 }, /* P */
104: { pre_IP, post_IP, 0 }, /* IP */
105: { pre_HP, post_HP, 0 }, /* HP */
106: { NULL, NULL, 0 }, /* SM */
107: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 108: { pre_alternate, NULL, 0 }, /* BI */
109: { pre_alternate, NULL, 0 }, /* IB */
110: { pre_alternate, NULL, 0 }, /* BR */
111: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 112: { NULL, NULL, 0 }, /* R */
113: { pre_B, NULL, 0 }, /* B */
114: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 115: { pre_alternate, NULL, 0 }, /* IR */
116: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 117: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 118: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 119: { pre_literal, NULL, 0 }, /* nf */
120: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 121: { NULL, NULL, 0 }, /* RE */
122: { pre_RS, post_RS, 0 }, /* RS */
123: { pre_ign, NULL, 0 }, /* DT */
124: { pre_ign, NULL, 0 }, /* UC */
1.134 schwarze 125: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.70 joerg 126: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 127: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 128: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.127 kristaps 129: { pre_OP, NULL, 0 }, /* OP */
1.129 schwarze 130: { pre_literal, NULL, 0 }, /* EX */
131: { pre_literal, NULL, 0 }, /* EE */
1.1 kristaps 132: };
133:
134:
135:
1.31 kristaps 136: void
1.36 kristaps 137: terminal_man(void *arg, const struct man *man)
1.1 kristaps 138: {
1.36 kristaps 139: struct termp *p;
140: const struct man_node *n;
1.135 ! schwarze 141: const struct man_meta *meta;
1.36 kristaps 142: struct mtermp mt;
143:
144: p = (struct termp *)arg;
145:
1.122 schwarze 146: if (0 == p->defindent)
147: p->defindent = 7;
148:
1.58 kristaps 149: p->overstep = 0;
1.65 joerg 150: p->maxrmargin = p->defrmargin;
1.77 kristaps 151: p->tabwidth = term_len(p, 5);
1.73 kristaps 152:
1.36 kristaps 153: if (NULL == p->symtab)
1.109 kristaps 154: p->symtab = mchars_alloc();
1.36 kristaps 155:
156: n = man_node(man);
1.135 ! schwarze 157: meta = man_meta(man);
1.1 kristaps 158:
1.135 ! schwarze 159: term_begin(p, print_man_head, print_man_foot, meta);
1.1 kristaps 160: p->flags |= TERMP_NOSPACE;
1.19 kristaps 161:
1.116 schwarze 162: memset(&mt, 0, sizeof(struct mtermp));
163:
1.122 schwarze 164: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
165: mt.offset = term_len(p, p->defindent);
1.134 schwarze 166: mt.pardist = 1;
1.24 kristaps 167:
1.36 kristaps 168: if (n->child)
1.135 ! schwarze 169: print_man_nodelist(p, &mt, n->child, meta);
1.73 kristaps 170:
171: term_end(p);
1.1 kristaps 172: }
173:
174:
1.77 kristaps 175: static size_t
176: a2height(const struct termp *p, const char *cp)
1.18 kristaps 177: {
1.40 kristaps 178: struct roffsu su;
1.18 kristaps 179:
1.77 kristaps 180: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 kristaps 181: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 182:
1.77 kristaps 183: return(term_vspan(p, &su));
1.18 kristaps 184: }
185:
186:
187: static int
1.77 kristaps 188: a2width(const struct termp *p, const char *cp)
1.38 kristaps 189: {
1.40 kristaps 190: struct roffsu su;
1.38 kristaps 191:
1.77 kristaps 192: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 193: return(-1);
1.40 kristaps 194:
1.77 kristaps 195: return((int)term_hspan(p, &su));
1.38 kristaps 196: }
197:
1.111 kristaps 198: /*
199: * Printing leading vertical space before a block.
200: * This is used for the paragraph macros.
201: * The rules are pretty simple, since there's very little nesting going
202: * on here. Basically, if we're the first within another block (SS/SH),
203: * then don't emit vertical space. If we are (RS), then do. If not the
204: * first, print it.
205: */
1.39 kristaps 206: static void
1.134 schwarze 207: print_bvspace(struct termp *p, const struct man_node *n, int pardist)
1.18 kristaps 208: {
1.134 schwarze 209: int i;
1.111 kristaps 210:
1.39 kristaps 211: term_newln(p);
1.101 schwarze 212:
1.111 kristaps 213: if (n->body && n->body->child)
214: if (MAN_TBL == n->body->child->type)
215: return;
216:
217: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
218: if (NULL == n->prev)
219: return;
1.18 kristaps 220:
1.134 schwarze 221: for (i = 0; i < pardist; i++)
222: term_vspace(p);
1.18 kristaps 223: }
224:
1.3 kristaps 225: /* ARGSUSED */
1.1 kristaps 226: static int
1.29 kristaps 227: pre_ign(DECL_ARGS)
228: {
229:
230: return(0);
231: }
232:
233:
234: /* ARGSUSED */
235: static int
1.1 kristaps 236: pre_I(DECL_ARGS)
237: {
238:
1.52 kristaps 239: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 240: return(1);
241: }
242:
243:
244: /* ARGSUSED */
1.3 kristaps 245: static int
1.84 kristaps 246: pre_literal(DECL_ARGS)
1.19 kristaps 247: {
248:
1.81 kristaps 249: term_newln(p);
1.88 kristaps 250:
1.129 schwarze 251: if (MAN_nf == n->tok || MAN_EX == n->tok)
1.84 kristaps 252: mt->fl |= MANT_LITERAL;
1.88 kristaps 253: else
1.84 kristaps 254: mt->fl &= ~MANT_LITERAL;
255:
1.117 schwarze 256: /*
257: * Unlike .IP and .TP, .HP does not have a HEAD.
258: * So in case a second call to term_flushln() is needed,
259: * indentation has to be set up explicitly.
260: */
261: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.121 schwarze 262: p->offset = p->rmargin;
1.117 schwarze 263: p->rmargin = p->maxrmargin;
264: p->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);
265: p->flags |= TERMP_NOSPACE;
266: }
267:
1.99 schwarze 268: return(0);
1.19 kristaps 269: }
270:
271: /* ARGSUSED */
272: static int
1.134 schwarze 273: pre_PD(DECL_ARGS)
274: {
275:
276: n = n->child;
277: if (0 == n) {
278: mt->pardist = 1;
279: return(0);
280: }
281: assert(MAN_TEXT == n->type);
282: mt->pardist = atoi(n->string);
283: return(0);
284: }
285:
286: /* ARGSUSED */
287: static int
1.88 kristaps 288: pre_alternate(DECL_ARGS)
1.3 kristaps 289: {
1.88 kristaps 290: enum termfont font[2];
291: const struct man_node *nn;
292: int savelit, i;
1.3 kristaps 293:
1.88 kristaps 294: switch (n->tok) {
295: case (MAN_RB):
296: font[0] = TERMFONT_NONE;
297: font[1] = TERMFONT_BOLD;
298: break;
299: case (MAN_RI):
300: font[0] = TERMFONT_NONE;
301: font[1] = TERMFONT_UNDER;
302: break;
303: case (MAN_BR):
304: font[0] = TERMFONT_BOLD;
305: font[1] = TERMFONT_NONE;
306: break;
307: case (MAN_BI):
308: font[0] = TERMFONT_BOLD;
309: font[1] = TERMFONT_UNDER;
310: break;
311: case (MAN_IR):
312: font[0] = TERMFONT_UNDER;
313: font[1] = TERMFONT_NONE;
314: break;
315: case (MAN_IB):
316: font[0] = TERMFONT_UNDER;
317: font[1] = TERMFONT_BOLD;
318: break;
319: default:
320: abort();
321: }
1.35 kristaps 322:
1.88 kristaps 323: savelit = MANT_LITERAL & mt->fl;
324: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 325:
1.88 kristaps 326: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
327: term_fontrepl(p, font[i]);
328: if (savelit && NULL == nn->next)
329: mt->fl |= MANT_LITERAL;
1.135 ! schwarze 330: print_man_node(p, mt, nn, meta);
1.88 kristaps 331: if (nn->next)
1.4 kristaps 332: p->flags |= TERMP_NOSPACE;
1.3 kristaps 333: }
334:
335: return(0);
336: }
337:
338: /* ARGSUSED */
1.1 kristaps 339: static int
340: pre_B(DECL_ARGS)
341: {
342:
1.52 kristaps 343: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 344: return(1);
1.127 kristaps 345: }
346:
347: /* ARGSUSED */
348: static int
349: pre_OP(DECL_ARGS)
350: {
351:
352: term_word(p, "[");
353: p->flags |= TERMP_NOSPACE;
354:
355: if (NULL != (n = n->child)) {
356: term_fontrepl(p, TERMFONT_BOLD);
357: term_word(p, n->string);
358: }
359: if (NULL != n && NULL != n->next) {
360: term_fontrepl(p, TERMFONT_UNDER);
361: term_word(p, n->next->string);
362: }
363:
364: term_fontrepl(p, TERMFONT_NONE);
365: p->flags |= TERMP_NOSPACE;
366: term_word(p, "]");
367: return(0);
1.89 kristaps 368: }
369:
370: /* ARGSUSED */
371: static int
372: pre_ft(DECL_ARGS)
373: {
374: const char *cp;
375:
376: if (NULL == n->child) {
377: term_fontlast(p);
378: return(0);
379: }
380:
381: cp = n->child->string;
382: switch (*cp) {
383: case ('4'):
384: /* FALLTHROUGH */
385: case ('3'):
386: /* FALLTHROUGH */
387: case ('B'):
388: term_fontrepl(p, TERMFONT_BOLD);
389: break;
390: case ('2'):
391: /* FALLTHROUGH */
392: case ('I'):
393: term_fontrepl(p, TERMFONT_UNDER);
394: break;
395: case ('P'):
396: term_fontlast(p);
397: break;
398: case ('1'):
399: /* FALLTHROUGH */
400: case ('C'):
401: /* FALLTHROUGH */
402: case ('R'):
403: term_fontrepl(p, TERMFONT_NONE);
404: break;
405: default:
406: break;
407: }
408: return(0);
1.83 kristaps 409: }
410:
411: /* ARGSUSED */
412: static int
413: pre_in(DECL_ARGS)
414: {
415: int len, less;
416: size_t v;
417: const char *cp;
418:
419: term_newln(p);
420:
421: if (NULL == n->child) {
422: p->offset = mt->offset;
423: return(0);
424: }
425:
426: cp = n->child->string;
427: less = 0;
428:
429: if ('-' == *cp)
430: less = -1;
431: else if ('+' == *cp)
432: less = 1;
433: else
434: cp--;
435:
436: if ((len = a2width(p, ++cp)) < 0)
437: return(0);
438:
439: v = (size_t)len;
440:
441: if (less < 0)
442: p->offset -= p->offset > v ? v : p->offset;
443: else if (less > 0)
444: p->offset += v;
445: else
446: p->offset = v;
1.95 kristaps 447:
448: /* Don't let this creep beyond the right margin. */
449:
450: if (p->offset > p->rmargin)
451: p->offset = p->rmargin;
1.83 kristaps 452:
453: return(0);
1.1 kristaps 454: }
455:
456:
1.3 kristaps 457: /* ARGSUSED */
1.1 kristaps 458: static int
1.19 kristaps 459: pre_sp(DECL_ARGS)
460: {
1.131 schwarze 461: char *s;
1.77 kristaps 462: size_t i, len;
1.131 schwarze 463: int neg;
1.112 kristaps 464:
465: if ((NULL == n->prev && n->parent)) {
1.132 schwarze 466: switch (n->parent->tok) {
467: case (MAN_SH):
468: /* FALLTHROUGH */
469: case (MAN_SS):
470: /* FALLTHROUGH */
471: case (MAN_PP):
472: /* FALLTHROUGH */
473: case (MAN_LP):
474: /* FALLTHROUGH */
475: case (MAN_P):
476: /* FALLTHROUGH */
1.112 kristaps 477: return(0);
1.132 schwarze 478: default:
479: break;
480: }
1.112 kristaps 481: }
1.19 kristaps 482:
1.131 schwarze 483: neg = 0;
1.82 kristaps 484: switch (n->tok) {
485: case (MAN_br):
486: len = 0;
487: break;
488: default:
1.131 schwarze 489: if (NULL == n->child) {
490: len = 1;
491: break;
492: }
493: s = n->child->string;
494: if ('-' == *s) {
495: neg = 1;
496: s++;
497: }
498: len = a2height(p, s);
1.82 kristaps 499: break;
500: }
1.38 kristaps 501:
1.19 kristaps 502: if (0 == len)
503: term_newln(p);
1.131 schwarze 504: else if (neg)
505: p->skipvsp += len;
506: else
507: for (i = 0; i < len; i++)
508: term_vspace(p);
1.19 kristaps 509:
1.15 kristaps 510: return(0);
511: }
512:
513:
514: /* ARGSUSED */
515: static int
1.19 kristaps 516: pre_HP(DECL_ARGS)
517: {
1.117 schwarze 518: size_t len, one;
1.24 kristaps 519: int ival;
520: const struct man_node *nn;
1.19 kristaps 521:
1.20 kristaps 522: switch (n->type) {
523: case (MAN_BLOCK):
1.134 schwarze 524: print_bvspace(p, n, mt->pardist);
1.24 kristaps 525: return(1);
1.20 kristaps 526: case (MAN_BODY):
527: break;
528: default:
529: return(0);
530: }
531:
1.130 schwarze 532: if ( ! (MANT_LITERAL & mt->fl)) {
533: p->flags |= TERMP_NOBREAK;
534: p->flags |= TERMP_TWOSPACE;
535: }
536:
1.116 schwarze 537: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 538: ival = -1;
539:
540: /* Calculate offset. */
541:
1.39 kristaps 542: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 543: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 544: len = (size_t)ival;
545:
1.117 schwarze 546: one = term_len(p, 1);
1.121 schwarze 547: if (len < one)
1.117 schwarze 548: len = one;
1.24 kristaps 549:
1.26 kristaps 550: p->offset = mt->offset;
551: p->rmargin = mt->offset + len;
1.24 kristaps 552:
553: if (ival >= 0)
1.116 schwarze 554: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 555:
1.19 kristaps 556: return(1);
557: }
558:
559:
560: /* ARGSUSED */
1.20 kristaps 561: static void
562: post_HP(DECL_ARGS)
563: {
564:
565: switch (n->type) {
566: case (MAN_BODY):
567: term_flushln(p);
568: p->flags &= ~TERMP_NOBREAK;
569: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 570: p->offset = mt->offset;
1.20 kristaps 571: p->rmargin = p->maxrmargin;
572: break;
573: default:
574: break;
575: }
576: }
577:
578:
579: /* ARGSUSED */
1.19 kristaps 580: static int
1.1 kristaps 581: pre_PP(DECL_ARGS)
582: {
583:
1.19 kristaps 584: switch (n->type) {
585: case (MAN_BLOCK):
1.122 schwarze 586: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.134 schwarze 587: print_bvspace(p, n, mt->pardist);
1.19 kristaps 588: break;
589: default:
1.26 kristaps 590: p->offset = mt->offset;
1.19 kristaps 591: break;
592: }
593:
1.87 kristaps 594: return(MAN_HEAD != n->type);
1.1 kristaps 595: }
596:
597:
1.3 kristaps 598: /* ARGSUSED */
1.1 kristaps 599: static int
1.4 kristaps 600: pre_IP(DECL_ARGS)
601: {
1.22 kristaps 602: const struct man_node *nn;
603: size_t len;
1.94 schwarze 604: int savelit, ival;
1.18 kristaps 605:
1.22 kristaps 606: switch (n->type) {
607: case (MAN_BODY):
608: p->flags |= TERMP_NOSPACE;
609: break;
610: case (MAN_HEAD):
611: p->flags |= TERMP_NOBREAK;
612: break;
1.23 kristaps 613: case (MAN_BLOCK):
1.134 schwarze 614: print_bvspace(p, n, mt->pardist);
1.23 kristaps 615: /* FALLTHROUGH */
1.22 kristaps 616: default:
617: return(1);
618: }
1.18 kristaps 619:
1.116 schwarze 620: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 621: ival = -1;
1.4 kristaps 622:
1.94 schwarze 623: /* Calculate the offset from the optional second argument. */
1.22 kristaps 624: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 625: if (NULL != (nn = nn->next))
1.77 kristaps 626: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 627: len = (size_t)ival;
1.4 kristaps 628:
1.22 kristaps 629: switch (n->type) {
630: case (MAN_HEAD):
1.23 kristaps 631: /* Handle zero-width lengths. */
632: if (0 == len)
1.77 kristaps 633: len = term_len(p, 1);
1.23 kristaps 634:
1.26 kristaps 635: p->offset = mt->offset;
636: p->rmargin = mt->offset + len;
1.22 kristaps 637: if (ival < 0)
638: break;
1.18 kristaps 639:
1.24 kristaps 640: /* Set the saved left-margin. */
1.116 schwarze 641: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 642:
1.94 schwarze 643: savelit = MANT_LITERAL & mt->fl;
644: mt->fl &= ~MANT_LITERAL;
645:
646: if (n->child)
1.135 ! schwarze 647: print_man_node(p, mt, n->child, meta);
1.94 schwarze 648:
649: if (savelit)
650: mt->fl |= MANT_LITERAL;
651:
1.22 kristaps 652: return(0);
1.23 kristaps 653: case (MAN_BODY):
1.26 kristaps 654: p->offset = mt->offset + len;
1.23 kristaps 655: p->rmargin = p->maxrmargin;
656: break;
1.22 kristaps 657: default:
658: break;
1.18 kristaps 659: }
660:
1.22 kristaps 661: return(1);
662: }
1.18 kristaps 663:
664:
1.22 kristaps 665: /* ARGSUSED */
666: static void
667: post_IP(DECL_ARGS)
668: {
1.4 kristaps 669:
1.22 kristaps 670: switch (n->type) {
671: case (MAN_HEAD):
672: term_flushln(p);
673: p->flags &= ~TERMP_NOBREAK;
674: p->rmargin = p->maxrmargin;
675: break;
676: case (MAN_BODY):
1.94 schwarze 677: term_newln(p);
1.22 kristaps 678: break;
679: default:
680: break;
681: }
1.4 kristaps 682: }
683:
684:
685: /* ARGSUSED */
686: static int
1.1 kristaps 687: pre_TP(DECL_ARGS)
688: {
1.23 kristaps 689: const struct man_node *nn;
690: size_t len;
1.94 schwarze 691: int savelit, ival;
1.1 kristaps 692:
1.21 kristaps 693: switch (n->type) {
694: case (MAN_HEAD):
695: p->flags |= TERMP_NOBREAK;
696: break;
697: case (MAN_BODY):
698: p->flags |= TERMP_NOSPACE;
1.23 kristaps 699: break;
700: case (MAN_BLOCK):
1.134 schwarze 701: print_bvspace(p, n, mt->pardist);
1.23 kristaps 702: /* FALLTHROUGH */
703: default:
704: return(1);
705: }
706:
1.116 schwarze 707: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 708: ival = -1;
709:
710: /* Calculate offset. */
711:
1.116 schwarze 712: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 713: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 714: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 715: len = (size_t)ival;
716:
717: switch (n->type) {
718: case (MAN_HEAD):
719: /* Handle zero-length properly. */
720: if (0 == len)
1.77 kristaps 721: len = term_len(p, 1);
1.23 kristaps 722:
1.26 kristaps 723: p->offset = mt->offset;
724: p->rmargin = mt->offset + len;
1.23 kristaps 725:
1.94 schwarze 726: savelit = MANT_LITERAL & mt->fl;
727: mt->fl &= ~MANT_LITERAL;
728:
1.23 kristaps 729: /* Don't print same-line elements. */
1.94 schwarze 730: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 731: if (nn->line > n->line)
1.135 ! schwarze 732: print_man_node(p, mt, nn, meta);
1.24 kristaps 733:
1.94 schwarze 734: if (savelit)
735: mt->fl |= MANT_LITERAL;
1.24 kristaps 736: if (ival >= 0)
1.116 schwarze 737: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 738:
1.23 kristaps 739: return(0);
740: case (MAN_BODY):
1.26 kristaps 741: p->offset = mt->offset + len;
1.23 kristaps 742: p->rmargin = p->maxrmargin;
1.130 schwarze 743: p->flags &= ~TERMP_NOBREAK;
744: p->flags &= ~TERMP_TWOSPACE;
1.21 kristaps 745: break;
746: default:
747: break;
748: }
1.16 kristaps 749:
1.21 kristaps 750: return(1);
751: }
1.1 kristaps 752:
753:
1.21 kristaps 754: /* ARGSUSED */
755: static void
756: post_TP(DECL_ARGS)
757: {
1.1 kristaps 758:
1.21 kristaps 759: switch (n->type) {
760: case (MAN_HEAD):
761: term_flushln(p);
762: break;
763: case (MAN_BODY):
1.94 schwarze 764: term_newln(p);
1.21 kristaps 765: break;
766: default:
767: break;
768: }
1.1 kristaps 769: }
770:
771:
1.3 kristaps 772: /* ARGSUSED */
1.1 kristaps 773: static int
774: pre_SS(DECL_ARGS)
775: {
1.134 schwarze 776: int i;
1.1 kristaps 777:
1.19 kristaps 778: switch (n->type) {
779: case (MAN_BLOCK):
1.113 kristaps 780: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 781: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
782: mt->offset = term_len(p, p->defindent);
1.24 kristaps 783: /* If following a prior empty `SS', no vspace. */
784: if (n->prev && MAN_SS == n->prev->tok)
785: if (NULL == n->prev->body->child)
786: break;
787: if (NULL == n->prev)
788: break;
1.134 schwarze 789: for (i = 0; i < mt->pardist; i++)
790: term_vspace(p);
1.19 kristaps 791: break;
792: case (MAN_HEAD):
1.52 kristaps 793: term_fontrepl(p, TERMFONT_BOLD);
1.133 schwarze 794: p->offset = term_len(p, 3);
1.19 kristaps 795: break;
1.24 kristaps 796: case (MAN_BODY):
1.26 kristaps 797: p->offset = mt->offset;
1.24 kristaps 798: break;
1.19 kristaps 799: default:
800: break;
801: }
802:
1.1 kristaps 803: return(1);
804: }
805:
806:
1.3 kristaps 807: /* ARGSUSED */
1.1 kristaps 808: static void
809: post_SS(DECL_ARGS)
810: {
811:
1.19 kristaps 812: switch (n->type) {
813: case (MAN_HEAD):
814: term_newln(p);
815: break;
1.24 kristaps 816: case (MAN_BODY):
817: term_newln(p);
818: break;
1.19 kristaps 819: default:
820: break;
821: }
1.1 kristaps 822: }
823:
824:
1.3 kristaps 825: /* ARGSUSED */
1.1 kristaps 826: static int
827: pre_SH(DECL_ARGS)
828: {
1.134 schwarze 829: int i;
1.22 kristaps 830:
1.19 kristaps 831: switch (n->type) {
832: case (MAN_BLOCK):
1.113 kristaps 833: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 834: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
835: mt->offset = term_len(p, p->defindent);
1.22 kristaps 836: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 837: if (n->prev && MAN_SH == n->prev->tok)
838: if (NULL == n->prev->body->child)
839: break;
1.61 kristaps 840: /* If the first macro, no vspae. */
841: if (NULL == n->prev)
842: break;
1.134 schwarze 843: for (i = 0; i < mt->pardist; i++)
844: term_vspace(p);
1.19 kristaps 845: break;
846: case (MAN_HEAD):
1.52 kristaps 847: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 848: p->offset = 0;
849: break;
850: case (MAN_BODY):
1.26 kristaps 851: p->offset = mt->offset;
1.19 kristaps 852: break;
853: default:
854: break;
855: }
1.1 kristaps 856:
857: return(1);
858: }
859:
860:
1.3 kristaps 861: /* ARGSUSED */
1.1 kristaps 862: static void
863: post_SH(DECL_ARGS)
864: {
865:
1.19 kristaps 866: switch (n->type) {
867: case (MAN_HEAD):
868: term_newln(p);
869: break;
870: case (MAN_BODY):
871: term_newln(p);
872: break;
873: default:
874: break;
875: }
1.1 kristaps 876: }
877:
1.26 kristaps 878: /* ARGSUSED */
879: static int
880: pre_RS(DECL_ARGS)
881: {
1.110 kristaps 882: int ival;
883: size_t sz;
1.26 kristaps 884:
885: switch (n->type) {
886: case (MAN_BLOCK):
887: term_newln(p);
888: return(1);
889: case (MAN_HEAD):
890: return(0);
891: default:
892: break;
893: }
894:
1.122 schwarze 895: sz = term_len(p, p->defindent);
1.26 kristaps 896:
1.110 kristaps 897: if (NULL != (n = n->parent->head->child))
898: if ((ival = a2width(p, n->string)) >= 0)
899: sz = (size_t)ival;
1.26 kristaps 900:
1.110 kristaps 901: mt->offset += sz;
1.119 schwarze 902: p->rmargin = p->maxrmargin;
903: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.26 kristaps 904:
1.116 schwarze 905: if (++mt->lmarginsz < MAXMARGINS)
906: mt->lmargincur = mt->lmarginsz;
907:
908: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 909: return(1);
910: }
911:
912: /* ARGSUSED */
913: static void
914: post_RS(DECL_ARGS)
915: {
1.110 kristaps 916: int ival;
917: size_t sz;
1.26 kristaps 918:
919: switch (n->type) {
920: case (MAN_BLOCK):
1.110 kristaps 921: return;
1.59 kristaps 922: case (MAN_HEAD):
1.110 kristaps 923: return;
1.26 kristaps 924: default:
925: term_newln(p);
926: break;
927: }
1.110 kristaps 928:
1.122 schwarze 929: sz = term_len(p, p->defindent);
1.110 kristaps 930:
931: if (NULL != (n = n->parent->head->child))
932: if ((ival = a2width(p, n->string)) >= 0)
933: sz = (size_t)ival;
934:
935: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
936: p->offset = mt->offset;
1.116 schwarze 937:
938: if (--mt->lmarginsz < MAXMARGINS)
939: mt->lmargincur = mt->lmarginsz;
1.26 kristaps 940: }
941:
1.1 kristaps 942: static void
1.45 kristaps 943: print_man_node(DECL_ARGS)
1.1 kristaps 944: {
1.65 joerg 945: size_t rm, rmax;
1.54 kristaps 946: int c;
1.1 kristaps 947:
948: switch (n->type) {
949: case(MAN_TEXT):
1.97 kristaps 950: /*
951: * If we have a blank line, output a vertical space.
952: * If we have a space as the first character, break
953: * before printing the line's data.
954: */
1.96 kristaps 955: if ('\0' == *n->string) {
1.4 kristaps 956: term_vspace(p);
1.98 schwarze 957: return;
1.97 kristaps 958: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 959: term_newln(p);
1.54 kristaps 960:
1.4 kristaps 961: term_word(p, n->string);
1.130 schwarze 962: goto out;
1.52 kristaps 963:
1.102 kristaps 964: case (MAN_EQN):
1.115 kristaps 965: term_eqn(p, n->eqn);
1.97 kristaps 966: return;
1.91 kristaps 967: case (MAN_TBL):
1.97 kristaps 968: /*
969: * Tables are preceded by a newline. Then process a
970: * table line, which will cause line termination,
971: */
1.93 kristaps 972: if (TBL_SPAN_FIRST & n->span->flags)
973: term_newln(p);
1.92 kristaps 974: term_tbl(p, n->span);
1.97 kristaps 975: return;
1.1 kristaps 976: default:
977: break;
978: }
979:
1.97 kristaps 980: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
981: term_fontrepl(p, TERMFONT_NONE);
982:
983: c = 1;
984: if (termacts[n->tok].pre)
1.135 ! schwarze 985: c = (*termacts[n->tok].pre)(p, mt, n, meta);
1.97 kristaps 986:
1.1 kristaps 987: if (c && n->child)
1.135 ! schwarze 988: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 989:
1.97 kristaps 990: if (termacts[n->tok].post)
1.135 ! schwarze 991: (*termacts[n->tok].post)(p, mt, n, meta);
1.97 kristaps 992: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
993: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 994:
1.130 schwarze 995: out:
996: /*
997: * If we're in a literal context, make sure that words
998: * together on the same line stay together. This is a
999: * POST-printing call, so we check the NEXT word. Since
1000: * -man doesn't have nested macros, we don't need to be
1001: * more specific than this.
1002: */
1003: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
1004: NULL != n->next && n->next->line > n->line) {
1005: rm = p->rmargin;
1006: rmax = p->maxrmargin;
1007: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1008: p->flags |= TERMP_NOSPACE;
1009: if (NULL != n->string && '\0' != *n->string)
1010: term_flushln(p);
1011: else
1012: term_newln(p);
1013: if (rm < rmax && n->parent->tok == MAN_HP) {
1014: p->offset = rm;
1015: p->rmargin = rmax;
1016: } else
1017: p->rmargin = rm;
1018: p->maxrmargin = rmax;
1019: }
1.63 kristaps 1020: if (MAN_EOS & n->flags)
1021: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1022: }
1023:
1024:
1025: static void
1.52 kristaps 1026: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1027: {
1.19 kristaps 1028:
1.135 ! schwarze 1029: print_man_node(p, mt, n, meta);
1.1 kristaps 1030: if ( ! n->next)
1031: return;
1.135 ! schwarze 1032: print_man_nodelist(p, mt, n->next, meta);
1.1 kristaps 1033: }
1034:
1035:
1.31 kristaps 1036: static void
1.73 kristaps 1037: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 1038: {
1.123 schwarze 1039: char title[BUFSIZ];
1040: size_t datelen;
1.73 kristaps 1041: const struct man_meta *meta;
1042:
1043: meta = (const struct man_meta *)arg;
1.125 schwarze 1044: assert(meta->title);
1045: assert(meta->msec);
1046: assert(meta->date);
1.1 kristaps 1047:
1.52 kristaps 1048: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1049:
1.69 joerg 1050: term_vspace(p);
1.126 schwarze 1051:
1052: /*
1053: * Temporary, undocumented option to imitate mdoc(7) output.
1054: * In the bottom right corner, use the source instead of
1055: * the title.
1056: */
1057:
1058: if ( ! p->mdocstyle) {
1059: term_vspace(p);
1060: term_vspace(p);
1061: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1062: } else if (meta->source) {
1063: strlcpy(title, meta->source, BUFSIZ);
1064: } else {
1065: title[0] = '\0';
1066: }
1.125 schwarze 1067: datelen = term_strlen(p, meta->date);
1.1 kristaps 1068:
1.126 schwarze 1069: /* Bottom left corner: manual source. */
1070:
1.1 kristaps 1071: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1072: p->offset = 0;
1.123 schwarze 1073: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1074:
1075: if (meta->source)
1076: term_word(p, meta->source);
1077: term_flushln(p);
1078:
1.126 schwarze 1079: /* At the bottom in the middle: manual date. */
1080:
1.117 schwarze 1081: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1082: p->offset = p->rmargin;
1.123 schwarze 1083: p->rmargin = p->maxrmargin - term_strlen(p, title);
1084: if (p->offset + datelen >= p->rmargin)
1085: p->rmargin = p->offset + datelen;
1086:
1.125 schwarze 1087: term_word(p, meta->date);
1.123 schwarze 1088: term_flushln(p);
1089:
1.126 schwarze 1090: /* Bottom right corner: manual title and section. */
1091:
1.123 schwarze 1092: p->flags &= ~TERMP_NOBREAK;
1093: p->flags |= TERMP_NOSPACE;
1094: p->offset = p->rmargin;
1.1 kristaps 1095: p->rmargin = p->maxrmargin;
1096:
1.123 schwarze 1097: term_word(p, title);
1.1 kristaps 1098: term_flushln(p);
1099: }
1100:
1101:
1.31 kristaps 1102: static void
1.73 kristaps 1103: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1104: {
1.46 kristaps 1105: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1106: size_t buflen, titlen;
1.135 ! schwarze 1107: const struct man_meta *meta;
1.73 kristaps 1108:
1.135 ! schwarze 1109: meta = (const struct man_meta *)arg;
! 1110: assert(meta->title);
! 1111: assert(meta->msec);
1.1 kristaps 1112:
1.135 ! schwarze 1113: if (meta->vol)
! 1114: strlcpy(buf, meta->vol, BUFSIZ);
1.126 schwarze 1115: else
1116: buf[0] = '\0';
1.77 kristaps 1117: buflen = term_strlen(p, buf);
1.1 kristaps 1118:
1.126 schwarze 1119: /* Top left corner: manual title and section. */
1120:
1.135 ! schwarze 1121: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1.77 kristaps 1122: titlen = term_strlen(p, title);
1.1 kristaps 1123:
1.118 schwarze 1124: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1125: p->offset = 0;
1.57 kristaps 1126: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1127: (p->maxrmargin -
1128: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1129: p->maxrmargin - buflen;
1.1 kristaps 1130:
1131: term_word(p, title);
1132: term_flushln(p);
1133:
1.126 schwarze 1134: /* At the top in the middle: manual volume. */
1135:
1.117 schwarze 1136: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1137: p->offset = p->rmargin;
1.57 kristaps 1138: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1139: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1140:
1141: term_word(p, buf);
1142: term_flushln(p);
1143:
1.126 schwarze 1144: /* Top right corner: title and section, again. */
1145:
1.1 kristaps 1146: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1147: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1148: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1149: p->offset = p->rmargin;
1150: p->rmargin = p->maxrmargin;
1151: term_word(p, title);
1152: term_flushln(p);
1153: }
1.1 kristaps 1154:
1.118 schwarze 1155: p->flags &= ~TERMP_NOSPACE;
1156: p->offset = 0;
1.1 kristaps 1157: p->rmargin = p->maxrmargin;
1.61 kristaps 1158:
1.62 kristaps 1159: /*
1.126 schwarze 1160: * Groff prints three blank lines before the content.
1161: * Do the same, except in the temporary, undocumented
1162: * mode imitating mdoc(7) output.
1.62 kristaps 1163: */
1164:
1.61 kristaps 1165: term_vspace(p);
1.126 schwarze 1166: if ( ! p->mdocstyle) {
1167: term_vspace(p);
1168: term_vspace(p);
1169: }
1.1 kristaps 1170: }
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