Annotation of mandoc/man_term.c, Revision 1.137
1.137 ! schwarze 1: /* $Id: man_term.c,v 1.136 2013/01/05 22:19:12 schwarze Exp $ */
1.1 kristaps 2: /*
1.128 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.136 schwarze 4: * Copyright (c) 2010, 2011, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.55 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.28 kristaps 22: #include <sys/types.h>
23:
1.1 kristaps 24: #include <assert.h>
1.18 kristaps 25: #include <ctype.h>
1.1 kristaps 26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
29:
1.71 kristaps 30: #include "mandoc.h"
1.40 kristaps 31: #include "out.h"
1.36 kristaps 32: #include "man.h"
1.1 kristaps 33: #include "term.h"
1.36 kristaps 34: #include "main.h"
1.1 kristaps 35:
1.116 schwarze 36: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.18 kristaps 37:
1.24 kristaps 38: struct mtermp {
39: int fl;
1.19 kristaps 40: #define MANT_LITERAL (1 << 0)
1.116 schwarze 41: size_t lmargin[MAXMARGINS]; /* margins (incl. visible page) */
42: int lmargincur; /* index of current margin */
43: int lmarginsz; /* actual number of nested margins */
44: size_t offset; /* default offset to visible page */
1.134 schwarze 45: int pardist; /* vert. space before par., unit: [v] */
1.24 kristaps 46: };
1.19 kristaps 47:
1.1 kristaps 48: #define DECL_ARGS struct termp *p, \
1.24 kristaps 49: struct mtermp *mt, \
1.1 kristaps 50: const struct man_node *n, \
1.135 schwarze 51: const struct man_meta *meta
1.1 kristaps 52:
53: struct termact {
54: int (*pre)(DECL_ARGS);
55: void (*post)(DECL_ARGS);
1.56 kristaps 56: int flags;
57: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 58: };
59:
1.77 kristaps 60: static int a2width(const struct termp *, const char *);
61: static size_t a2height(const struct termp *, const char *);
1.39 kristaps 62:
1.52 kristaps 63: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 64: static void print_man_node(DECL_ARGS);
1.74 kristaps 65: static void print_man_head(struct termp *, const void *);
1.73 kristaps 66: static void print_man_foot(struct termp *, const void *);
1.39 kristaps 67: static void print_bvspace(struct termp *,
1.134 schwarze 68: const struct man_node *, int);
1.39 kristaps 69:
1.1 kristaps 70: static int pre_B(DECL_ARGS);
1.19 kristaps 71: static int pre_HP(DECL_ARGS);
1.1 kristaps 72: static int pre_I(DECL_ARGS);
1.4 kristaps 73: static int pre_IP(DECL_ARGS);
1.127 kristaps 74: static int pre_OP(DECL_ARGS);
1.134 schwarze 75: static int pre_PD(DECL_ARGS);
1.1 kristaps 76: static int pre_PP(DECL_ARGS);
1.26 kristaps 77: static int pre_RS(DECL_ARGS);
1.1 kristaps 78: static int pre_SH(DECL_ARGS);
79: static int pre_SS(DECL_ARGS);
80: static int pre_TP(DECL_ARGS);
1.137 ! schwarze 81: static int pre_UR(DECL_ARGS);
1.127 kristaps 82: static int pre_alternate(DECL_ARGS);
83: static int pre_ft(DECL_ARGS);
1.29 kristaps 84: static int pre_ign(DECL_ARGS);
1.83 kristaps 85: static int pre_in(DECL_ARGS);
1.84 kristaps 86: static int pre_literal(DECL_ARGS);
1.19 kristaps 87: static int pre_sp(DECL_ARGS);
1.1 kristaps 88:
1.22 kristaps 89: static void post_IP(DECL_ARGS);
1.20 kristaps 90: static void post_HP(DECL_ARGS);
1.26 kristaps 91: static void post_RS(DECL_ARGS);
1.1 kristaps 92: static void post_SH(DECL_ARGS);
93: static void post_SS(DECL_ARGS);
1.21 kristaps 94: static void post_TP(DECL_ARGS);
1.137 ! schwarze 95: static void post_UR(DECL_ARGS);
1.1 kristaps 96:
1.32 kristaps 97: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 98: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 99: { NULL, NULL, 0 }, /* TH */
100: { pre_SH, post_SH, 0 }, /* SH */
101: { pre_SS, post_SS, 0 }, /* SS */
102: { pre_TP, post_TP, 0 }, /* TP */
103: { pre_PP, NULL, 0 }, /* LP */
104: { pre_PP, NULL, 0 }, /* PP */
105: { pre_PP, NULL, 0 }, /* P */
106: { pre_IP, post_IP, 0 }, /* IP */
107: { pre_HP, post_HP, 0 }, /* HP */
108: { NULL, NULL, 0 }, /* SM */
109: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 110: { pre_alternate, NULL, 0 }, /* BI */
111: { pre_alternate, NULL, 0 }, /* IB */
112: { pre_alternate, NULL, 0 }, /* BR */
113: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 114: { NULL, NULL, 0 }, /* R */
115: { pre_B, NULL, 0 }, /* B */
116: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 117: { pre_alternate, NULL, 0 }, /* IR */
118: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 119: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 120: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 121: { pre_literal, NULL, 0 }, /* nf */
122: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 123: { NULL, NULL, 0 }, /* RE */
124: { pre_RS, post_RS, 0 }, /* RS */
125: { pre_ign, NULL, 0 }, /* DT */
126: { pre_ign, NULL, 0 }, /* UC */
1.134 schwarze 127: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.70 joerg 128: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 129: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 130: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.127 kristaps 131: { pre_OP, NULL, 0 }, /* OP */
1.129 schwarze 132: { pre_literal, NULL, 0 }, /* EX */
133: { pre_literal, NULL, 0 }, /* EE */
1.137 ! schwarze 134: { pre_UR, post_UR, 0 }, /* UR */
! 135: { NULL, NULL, 0 }, /* UE */
1.1 kristaps 136: };
137:
138:
139:
1.31 kristaps 140: void
1.36 kristaps 141: terminal_man(void *arg, const struct man *man)
1.1 kristaps 142: {
1.36 kristaps 143: struct termp *p;
144: const struct man_node *n;
1.135 schwarze 145: const struct man_meta *meta;
1.36 kristaps 146: struct mtermp mt;
147:
148: p = (struct termp *)arg;
149:
1.122 schwarze 150: if (0 == p->defindent)
151: p->defindent = 7;
152:
1.58 kristaps 153: p->overstep = 0;
1.65 joerg 154: p->maxrmargin = p->defrmargin;
1.77 kristaps 155: p->tabwidth = term_len(p, 5);
1.73 kristaps 156:
1.36 kristaps 157: if (NULL == p->symtab)
1.109 kristaps 158: p->symtab = mchars_alloc();
1.36 kristaps 159:
160: n = man_node(man);
1.135 schwarze 161: meta = man_meta(man);
1.1 kristaps 162:
1.135 schwarze 163: term_begin(p, print_man_head, print_man_foot, meta);
1.1 kristaps 164: p->flags |= TERMP_NOSPACE;
1.19 kristaps 165:
1.116 schwarze 166: memset(&mt, 0, sizeof(struct mtermp));
167:
1.122 schwarze 168: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
169: mt.offset = term_len(p, p->defindent);
1.134 schwarze 170: mt.pardist = 1;
1.24 kristaps 171:
1.36 kristaps 172: if (n->child)
1.135 schwarze 173: print_man_nodelist(p, &mt, n->child, meta);
1.73 kristaps 174:
175: term_end(p);
1.1 kristaps 176: }
177:
178:
1.77 kristaps 179: static size_t
180: a2height(const struct termp *p, const char *cp)
1.18 kristaps 181: {
1.40 kristaps 182: struct roffsu su;
1.18 kristaps 183:
1.77 kristaps 184: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 kristaps 185: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 186:
1.77 kristaps 187: return(term_vspan(p, &su));
1.18 kristaps 188: }
189:
190:
191: static int
1.77 kristaps 192: a2width(const struct termp *p, const char *cp)
1.38 kristaps 193: {
1.40 kristaps 194: struct roffsu su;
1.38 kristaps 195:
1.77 kristaps 196: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 197: return(-1);
1.40 kristaps 198:
1.77 kristaps 199: return((int)term_hspan(p, &su));
1.38 kristaps 200: }
201:
1.111 kristaps 202: /*
203: * Printing leading vertical space before a block.
204: * This is used for the paragraph macros.
205: * The rules are pretty simple, since there's very little nesting going
206: * on here. Basically, if we're the first within another block (SS/SH),
207: * then don't emit vertical space. If we are (RS), then do. If not the
208: * first, print it.
209: */
1.39 kristaps 210: static void
1.134 schwarze 211: print_bvspace(struct termp *p, const struct man_node *n, int pardist)
1.18 kristaps 212: {
1.134 schwarze 213: int i;
1.111 kristaps 214:
1.39 kristaps 215: term_newln(p);
1.101 schwarze 216:
1.111 kristaps 217: if (n->body && n->body->child)
218: if (MAN_TBL == n->body->child->type)
219: return;
220:
221: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
222: if (NULL == n->prev)
223: return;
1.18 kristaps 224:
1.134 schwarze 225: for (i = 0; i < pardist; i++)
226: term_vspace(p);
1.18 kristaps 227: }
228:
1.3 kristaps 229: /* ARGSUSED */
1.1 kristaps 230: static int
1.29 kristaps 231: pre_ign(DECL_ARGS)
232: {
233:
234: return(0);
235: }
236:
237:
238: /* ARGSUSED */
239: static int
1.1 kristaps 240: pre_I(DECL_ARGS)
241: {
242:
1.52 kristaps 243: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 244: return(1);
245: }
246:
247:
248: /* ARGSUSED */
1.3 kristaps 249: static int
1.84 kristaps 250: pre_literal(DECL_ARGS)
1.19 kristaps 251: {
252:
1.81 kristaps 253: term_newln(p);
1.88 kristaps 254:
1.129 schwarze 255: if (MAN_nf == n->tok || MAN_EX == n->tok)
1.84 kristaps 256: mt->fl |= MANT_LITERAL;
1.88 kristaps 257: else
1.84 kristaps 258: mt->fl &= ~MANT_LITERAL;
259:
1.117 schwarze 260: /*
261: * Unlike .IP and .TP, .HP does not have a HEAD.
262: * So in case a second call to term_flushln() is needed,
263: * indentation has to be set up explicitly.
264: */
265: if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
1.121 schwarze 266: p->offset = p->rmargin;
1.117 schwarze 267: p->rmargin = p->maxrmargin;
268: p->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);
269: p->flags |= TERMP_NOSPACE;
270: }
271:
1.99 schwarze 272: return(0);
1.19 kristaps 273: }
274:
275: /* ARGSUSED */
276: static int
1.134 schwarze 277: pre_PD(DECL_ARGS)
278: {
279:
280: n = n->child;
281: if (0 == n) {
282: mt->pardist = 1;
283: return(0);
284: }
285: assert(MAN_TEXT == n->type);
286: mt->pardist = atoi(n->string);
287: return(0);
288: }
289:
290: /* ARGSUSED */
291: static int
1.88 kristaps 292: pre_alternate(DECL_ARGS)
1.3 kristaps 293: {
1.88 kristaps 294: enum termfont font[2];
295: const struct man_node *nn;
296: int savelit, i;
1.3 kristaps 297:
1.88 kristaps 298: switch (n->tok) {
299: case (MAN_RB):
300: font[0] = TERMFONT_NONE;
301: font[1] = TERMFONT_BOLD;
302: break;
303: case (MAN_RI):
304: font[0] = TERMFONT_NONE;
305: font[1] = TERMFONT_UNDER;
306: break;
307: case (MAN_BR):
308: font[0] = TERMFONT_BOLD;
309: font[1] = TERMFONT_NONE;
310: break;
311: case (MAN_BI):
312: font[0] = TERMFONT_BOLD;
313: font[1] = TERMFONT_UNDER;
314: break;
315: case (MAN_IR):
316: font[0] = TERMFONT_UNDER;
317: font[1] = TERMFONT_NONE;
318: break;
319: case (MAN_IB):
320: font[0] = TERMFONT_UNDER;
321: font[1] = TERMFONT_BOLD;
322: break;
323: default:
324: abort();
325: }
1.35 kristaps 326:
1.88 kristaps 327: savelit = MANT_LITERAL & mt->fl;
328: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 329:
1.88 kristaps 330: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
331: term_fontrepl(p, font[i]);
332: if (savelit && NULL == nn->next)
333: mt->fl |= MANT_LITERAL;
1.135 schwarze 334: print_man_node(p, mt, nn, meta);
1.88 kristaps 335: if (nn->next)
1.4 kristaps 336: p->flags |= TERMP_NOSPACE;
1.3 kristaps 337: }
338:
339: return(0);
340: }
341:
342: /* ARGSUSED */
1.1 kristaps 343: static int
344: pre_B(DECL_ARGS)
345: {
346:
1.52 kristaps 347: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 348: return(1);
1.127 kristaps 349: }
350:
351: /* ARGSUSED */
352: static int
353: pre_OP(DECL_ARGS)
354: {
355:
356: term_word(p, "[");
357: p->flags |= TERMP_NOSPACE;
358:
359: if (NULL != (n = n->child)) {
360: term_fontrepl(p, TERMFONT_BOLD);
361: term_word(p, n->string);
362: }
363: if (NULL != n && NULL != n->next) {
364: term_fontrepl(p, TERMFONT_UNDER);
365: term_word(p, n->next->string);
366: }
367:
368: term_fontrepl(p, TERMFONT_NONE);
369: p->flags |= TERMP_NOSPACE;
370: term_word(p, "]");
371: return(0);
1.89 kristaps 372: }
373:
374: /* ARGSUSED */
375: static int
376: pre_ft(DECL_ARGS)
377: {
378: const char *cp;
379:
380: if (NULL == n->child) {
381: term_fontlast(p);
382: return(0);
383: }
384:
385: cp = n->child->string;
386: switch (*cp) {
387: case ('4'):
388: /* FALLTHROUGH */
389: case ('3'):
390: /* FALLTHROUGH */
391: case ('B'):
392: term_fontrepl(p, TERMFONT_BOLD);
393: break;
394: case ('2'):
395: /* FALLTHROUGH */
396: case ('I'):
397: term_fontrepl(p, TERMFONT_UNDER);
398: break;
399: case ('P'):
400: term_fontlast(p);
401: break;
402: case ('1'):
403: /* FALLTHROUGH */
404: case ('C'):
405: /* FALLTHROUGH */
406: case ('R'):
407: term_fontrepl(p, TERMFONT_NONE);
408: break;
409: default:
410: break;
411: }
412: return(0);
1.83 kristaps 413: }
414:
415: /* ARGSUSED */
416: static int
417: pre_in(DECL_ARGS)
418: {
419: int len, less;
420: size_t v;
421: const char *cp;
422:
423: term_newln(p);
424:
425: if (NULL == n->child) {
426: p->offset = mt->offset;
427: return(0);
428: }
429:
430: cp = n->child->string;
431: less = 0;
432:
433: if ('-' == *cp)
434: less = -1;
435: else if ('+' == *cp)
436: less = 1;
437: else
438: cp--;
439:
440: if ((len = a2width(p, ++cp)) < 0)
441: return(0);
442:
443: v = (size_t)len;
444:
445: if (less < 0)
446: p->offset -= p->offset > v ? v : p->offset;
447: else if (less > 0)
448: p->offset += v;
449: else
450: p->offset = v;
1.95 kristaps 451:
452: /* Don't let this creep beyond the right margin. */
453:
454: if (p->offset > p->rmargin)
455: p->offset = p->rmargin;
1.83 kristaps 456:
457: return(0);
1.1 kristaps 458: }
459:
460:
1.3 kristaps 461: /* ARGSUSED */
1.1 kristaps 462: static int
1.19 kristaps 463: pre_sp(DECL_ARGS)
464: {
1.131 schwarze 465: char *s;
1.77 kristaps 466: size_t i, len;
1.131 schwarze 467: int neg;
1.112 kristaps 468:
469: if ((NULL == n->prev && n->parent)) {
1.132 schwarze 470: switch (n->parent->tok) {
471: case (MAN_SH):
472: /* FALLTHROUGH */
473: case (MAN_SS):
474: /* FALLTHROUGH */
475: case (MAN_PP):
476: /* FALLTHROUGH */
477: case (MAN_LP):
478: /* FALLTHROUGH */
479: case (MAN_P):
480: /* FALLTHROUGH */
1.112 kristaps 481: return(0);
1.132 schwarze 482: default:
483: break;
484: }
1.112 kristaps 485: }
1.19 kristaps 486:
1.131 schwarze 487: neg = 0;
1.82 kristaps 488: switch (n->tok) {
489: case (MAN_br):
490: len = 0;
491: break;
492: default:
1.131 schwarze 493: if (NULL == n->child) {
494: len = 1;
495: break;
496: }
497: s = n->child->string;
498: if ('-' == *s) {
499: neg = 1;
500: s++;
501: }
502: len = a2height(p, s);
1.82 kristaps 503: break;
504: }
1.38 kristaps 505:
1.19 kristaps 506: if (0 == len)
507: term_newln(p);
1.131 schwarze 508: else if (neg)
509: p->skipvsp += len;
510: else
511: for (i = 0; i < len; i++)
512: term_vspace(p);
1.19 kristaps 513:
1.15 kristaps 514: return(0);
515: }
516:
517:
518: /* ARGSUSED */
519: static int
1.19 kristaps 520: pre_HP(DECL_ARGS)
521: {
1.117 schwarze 522: size_t len, one;
1.24 kristaps 523: int ival;
524: const struct man_node *nn;
1.19 kristaps 525:
1.20 kristaps 526: switch (n->type) {
527: case (MAN_BLOCK):
1.134 schwarze 528: print_bvspace(p, n, mt->pardist);
1.24 kristaps 529: return(1);
1.20 kristaps 530: case (MAN_BODY):
531: break;
532: default:
533: return(0);
534: }
535:
1.130 schwarze 536: if ( ! (MANT_LITERAL & mt->fl)) {
537: p->flags |= TERMP_NOBREAK;
538: p->flags |= TERMP_TWOSPACE;
539: }
540:
1.116 schwarze 541: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 542: ival = -1;
543:
544: /* Calculate offset. */
545:
1.39 kristaps 546: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 547: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 548: len = (size_t)ival;
549:
1.117 schwarze 550: one = term_len(p, 1);
1.121 schwarze 551: if (len < one)
1.117 schwarze 552: len = one;
1.24 kristaps 553:
1.26 kristaps 554: p->offset = mt->offset;
555: p->rmargin = mt->offset + len;
1.24 kristaps 556:
557: if (ival >= 0)
1.116 schwarze 558: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 559:
1.19 kristaps 560: return(1);
561: }
562:
563:
564: /* ARGSUSED */
1.20 kristaps 565: static void
566: post_HP(DECL_ARGS)
567: {
568:
569: switch (n->type) {
570: case (MAN_BODY):
1.136 schwarze 571: term_newln(p);
1.20 kristaps 572: p->flags &= ~TERMP_NOBREAK;
573: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 574: p->offset = mt->offset;
1.20 kristaps 575: p->rmargin = p->maxrmargin;
576: break;
577: default:
578: break;
579: }
580: }
581:
582:
583: /* ARGSUSED */
1.19 kristaps 584: static int
1.1 kristaps 585: pre_PP(DECL_ARGS)
586: {
587:
1.19 kristaps 588: switch (n->type) {
589: case (MAN_BLOCK):
1.122 schwarze 590: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.134 schwarze 591: print_bvspace(p, n, mt->pardist);
1.19 kristaps 592: break;
593: default:
1.26 kristaps 594: p->offset = mt->offset;
1.19 kristaps 595: break;
596: }
597:
1.87 kristaps 598: return(MAN_HEAD != n->type);
1.1 kristaps 599: }
600:
601:
1.3 kristaps 602: /* ARGSUSED */
1.1 kristaps 603: static int
1.4 kristaps 604: pre_IP(DECL_ARGS)
605: {
1.22 kristaps 606: const struct man_node *nn;
607: size_t len;
1.94 schwarze 608: int savelit, ival;
1.18 kristaps 609:
1.22 kristaps 610: switch (n->type) {
611: case (MAN_BODY):
612: p->flags |= TERMP_NOSPACE;
613: break;
614: case (MAN_HEAD):
615: p->flags |= TERMP_NOBREAK;
616: break;
1.23 kristaps 617: case (MAN_BLOCK):
1.134 schwarze 618: print_bvspace(p, n, mt->pardist);
1.23 kristaps 619: /* FALLTHROUGH */
1.22 kristaps 620: default:
621: return(1);
622: }
1.18 kristaps 623:
1.116 schwarze 624: len = mt->lmargin[mt->lmargincur];
1.22 kristaps 625: ival = -1;
1.4 kristaps 626:
1.94 schwarze 627: /* Calculate the offset from the optional second argument. */
1.22 kristaps 628: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 629: if (NULL != (nn = nn->next))
1.77 kristaps 630: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 631: len = (size_t)ival;
1.4 kristaps 632:
1.22 kristaps 633: switch (n->type) {
634: case (MAN_HEAD):
1.23 kristaps 635: /* Handle zero-width lengths. */
636: if (0 == len)
1.77 kristaps 637: len = term_len(p, 1);
1.23 kristaps 638:
1.26 kristaps 639: p->offset = mt->offset;
640: p->rmargin = mt->offset + len;
1.22 kristaps 641: if (ival < 0)
642: break;
1.18 kristaps 643:
1.24 kristaps 644: /* Set the saved left-margin. */
1.116 schwarze 645: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 646:
1.94 schwarze 647: savelit = MANT_LITERAL & mt->fl;
648: mt->fl &= ~MANT_LITERAL;
649:
650: if (n->child)
1.135 schwarze 651: print_man_node(p, mt, n->child, meta);
1.94 schwarze 652:
653: if (savelit)
654: mt->fl |= MANT_LITERAL;
655:
1.22 kristaps 656: return(0);
1.23 kristaps 657: case (MAN_BODY):
1.26 kristaps 658: p->offset = mt->offset + len;
1.23 kristaps 659: p->rmargin = p->maxrmargin;
660: break;
1.22 kristaps 661: default:
662: break;
1.18 kristaps 663: }
664:
1.22 kristaps 665: return(1);
666: }
1.18 kristaps 667:
668:
1.22 kristaps 669: /* ARGSUSED */
670: static void
671: post_IP(DECL_ARGS)
672: {
1.4 kristaps 673:
1.22 kristaps 674: switch (n->type) {
675: case (MAN_HEAD):
676: term_flushln(p);
677: p->flags &= ~TERMP_NOBREAK;
678: p->rmargin = p->maxrmargin;
679: break;
680: case (MAN_BODY):
1.94 schwarze 681: term_newln(p);
1.22 kristaps 682: break;
683: default:
684: break;
685: }
1.4 kristaps 686: }
687:
688:
689: /* ARGSUSED */
690: static int
1.1 kristaps 691: pre_TP(DECL_ARGS)
692: {
1.23 kristaps 693: const struct man_node *nn;
694: size_t len;
1.94 schwarze 695: int savelit, ival;
1.1 kristaps 696:
1.21 kristaps 697: switch (n->type) {
698: case (MAN_HEAD):
699: p->flags |= TERMP_NOBREAK;
700: break;
701: case (MAN_BODY):
702: p->flags |= TERMP_NOSPACE;
1.23 kristaps 703: break;
704: case (MAN_BLOCK):
1.134 schwarze 705: print_bvspace(p, n, mt->pardist);
1.23 kristaps 706: /* FALLTHROUGH */
707: default:
708: return(1);
709: }
710:
1.116 schwarze 711: len = (size_t)mt->lmargin[mt->lmargincur];
1.23 kristaps 712: ival = -1;
713:
714: /* Calculate offset. */
715:
1.116 schwarze 716: if (NULL != (nn = n->parent->head->child))
1.120 schwarze 717: if (nn->string && nn->parent->line == nn->line)
1.77 kristaps 718: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 719: len = (size_t)ival;
720:
721: switch (n->type) {
722: case (MAN_HEAD):
723: /* Handle zero-length properly. */
724: if (0 == len)
1.77 kristaps 725: len = term_len(p, 1);
1.23 kristaps 726:
1.26 kristaps 727: p->offset = mt->offset;
728: p->rmargin = mt->offset + len;
1.23 kristaps 729:
1.94 schwarze 730: savelit = MANT_LITERAL & mt->fl;
731: mt->fl &= ~MANT_LITERAL;
732:
1.23 kristaps 733: /* Don't print same-line elements. */
1.94 schwarze 734: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 735: if (nn->line > n->line)
1.135 schwarze 736: print_man_node(p, mt, nn, meta);
1.24 kristaps 737:
1.94 schwarze 738: if (savelit)
739: mt->fl |= MANT_LITERAL;
1.24 kristaps 740: if (ival >= 0)
1.116 schwarze 741: mt->lmargin[mt->lmargincur] = (size_t)ival;
1.24 kristaps 742:
1.23 kristaps 743: return(0);
744: case (MAN_BODY):
1.26 kristaps 745: p->offset = mt->offset + len;
1.23 kristaps 746: p->rmargin = p->maxrmargin;
1.130 schwarze 747: p->flags &= ~TERMP_NOBREAK;
748: p->flags &= ~TERMP_TWOSPACE;
1.21 kristaps 749: break;
750: default:
751: break;
752: }
1.16 kristaps 753:
1.21 kristaps 754: return(1);
755: }
1.1 kristaps 756:
757:
1.21 kristaps 758: /* ARGSUSED */
759: static void
760: post_TP(DECL_ARGS)
761: {
1.1 kristaps 762:
1.21 kristaps 763: switch (n->type) {
764: case (MAN_HEAD):
765: term_flushln(p);
766: break;
767: case (MAN_BODY):
1.94 schwarze 768: term_newln(p);
1.21 kristaps 769: break;
770: default:
771: break;
772: }
1.1 kristaps 773: }
774:
775:
1.3 kristaps 776: /* ARGSUSED */
1.1 kristaps 777: static int
778: pre_SS(DECL_ARGS)
779: {
1.134 schwarze 780: int i;
1.1 kristaps 781:
1.19 kristaps 782: switch (n->type) {
783: case (MAN_BLOCK):
1.113 kristaps 784: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 785: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
786: mt->offset = term_len(p, p->defindent);
1.24 kristaps 787: /* If following a prior empty `SS', no vspace. */
788: if (n->prev && MAN_SS == n->prev->tok)
789: if (NULL == n->prev->body->child)
790: break;
791: if (NULL == n->prev)
792: break;
1.134 schwarze 793: for (i = 0; i < mt->pardist; i++)
794: term_vspace(p);
1.19 kristaps 795: break;
796: case (MAN_HEAD):
1.52 kristaps 797: term_fontrepl(p, TERMFONT_BOLD);
1.133 schwarze 798: p->offset = term_len(p, 3);
1.19 kristaps 799: break;
1.24 kristaps 800: case (MAN_BODY):
1.26 kristaps 801: p->offset = mt->offset;
1.24 kristaps 802: break;
1.19 kristaps 803: default:
804: break;
805: }
806:
1.1 kristaps 807: return(1);
808: }
809:
810:
1.3 kristaps 811: /* ARGSUSED */
1.1 kristaps 812: static void
813: post_SS(DECL_ARGS)
814: {
815:
1.19 kristaps 816: switch (n->type) {
817: case (MAN_HEAD):
818: term_newln(p);
819: break;
1.24 kristaps 820: case (MAN_BODY):
821: term_newln(p);
822: break;
1.19 kristaps 823: default:
824: break;
825: }
1.1 kristaps 826: }
827:
828:
1.3 kristaps 829: /* ARGSUSED */
1.1 kristaps 830: static int
831: pre_SH(DECL_ARGS)
832: {
1.134 schwarze 833: int i;
1.22 kristaps 834:
1.19 kristaps 835: switch (n->type) {
836: case (MAN_BLOCK):
1.113 kristaps 837: mt->fl &= ~MANT_LITERAL;
1.122 schwarze 838: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
839: mt->offset = term_len(p, p->defindent);
1.22 kristaps 840: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 841: if (n->prev && MAN_SH == n->prev->tok)
842: if (NULL == n->prev->body->child)
843: break;
1.61 kristaps 844: /* If the first macro, no vspae. */
845: if (NULL == n->prev)
846: break;
1.134 schwarze 847: for (i = 0; i < mt->pardist; i++)
848: term_vspace(p);
1.19 kristaps 849: break;
850: case (MAN_HEAD):
1.52 kristaps 851: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 852: p->offset = 0;
853: break;
854: case (MAN_BODY):
1.26 kristaps 855: p->offset = mt->offset;
1.19 kristaps 856: break;
857: default:
858: break;
859: }
1.1 kristaps 860:
861: return(1);
862: }
863:
864:
1.3 kristaps 865: /* ARGSUSED */
1.1 kristaps 866: static void
867: post_SH(DECL_ARGS)
868: {
869:
1.19 kristaps 870: switch (n->type) {
871: case (MAN_HEAD):
872: term_newln(p);
873: break;
874: case (MAN_BODY):
875: term_newln(p);
876: break;
877: default:
878: break;
879: }
1.1 kristaps 880: }
881:
1.26 kristaps 882: /* ARGSUSED */
883: static int
884: pre_RS(DECL_ARGS)
885: {
1.110 kristaps 886: int ival;
887: size_t sz;
1.26 kristaps 888:
889: switch (n->type) {
890: case (MAN_BLOCK):
891: term_newln(p);
892: return(1);
893: case (MAN_HEAD):
894: return(0);
895: default:
896: break;
897: }
898:
1.122 schwarze 899: sz = term_len(p, p->defindent);
1.26 kristaps 900:
1.110 kristaps 901: if (NULL != (n = n->parent->head->child))
902: if ((ival = a2width(p, n->string)) >= 0)
903: sz = (size_t)ival;
1.26 kristaps 904:
1.110 kristaps 905: mt->offset += sz;
1.119 schwarze 906: p->rmargin = p->maxrmargin;
907: p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
1.26 kristaps 908:
1.116 schwarze 909: if (++mt->lmarginsz < MAXMARGINS)
910: mt->lmargincur = mt->lmarginsz;
911:
912: mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
1.26 kristaps 913: return(1);
914: }
915:
916: /* ARGSUSED */
917: static void
918: post_RS(DECL_ARGS)
919: {
1.110 kristaps 920: int ival;
921: size_t sz;
1.26 kristaps 922:
923: switch (n->type) {
924: case (MAN_BLOCK):
1.110 kristaps 925: return;
1.59 kristaps 926: case (MAN_HEAD):
1.110 kristaps 927: return;
1.26 kristaps 928: default:
929: term_newln(p);
930: break;
931: }
1.110 kristaps 932:
1.122 schwarze 933: sz = term_len(p, p->defindent);
1.110 kristaps 934:
935: if (NULL != (n = n->parent->head->child))
936: if ((ival = a2width(p, n->string)) >= 0)
937: sz = (size_t)ival;
938:
939: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
940: p->offset = mt->offset;
1.116 schwarze 941:
942: if (--mt->lmarginsz < MAXMARGINS)
943: mt->lmargincur = mt->lmarginsz;
1.137 ! schwarze 944: }
! 945:
! 946: /* ARGSUSED */
! 947: static int
! 948: pre_UR(DECL_ARGS)
! 949: {
! 950:
! 951: return (MAN_HEAD != n->type);
! 952: }
! 953:
! 954: /* ARGSUSED */
! 955: static void
! 956: post_UR(DECL_ARGS)
! 957: {
! 958:
! 959: if (MAN_BLOCK != n->type)
! 960: return;
! 961:
! 962: term_word(p, "<");
! 963: p->flags |= TERMP_NOSPACE;
! 964:
! 965: if (NULL != n->child->child)
! 966: print_man_node(p, mt, n->child->child, meta);
! 967:
! 968: p->flags |= TERMP_NOSPACE;
! 969: term_word(p, ">");
1.26 kristaps 970: }
971:
1.1 kristaps 972: static void
1.45 kristaps 973: print_man_node(DECL_ARGS)
1.1 kristaps 974: {
1.65 joerg 975: size_t rm, rmax;
1.54 kristaps 976: int c;
1.1 kristaps 977:
978: switch (n->type) {
979: case(MAN_TEXT):
1.97 kristaps 980: /*
981: * If we have a blank line, output a vertical space.
982: * If we have a space as the first character, break
983: * before printing the line's data.
984: */
1.96 kristaps 985: if ('\0' == *n->string) {
1.4 kristaps 986: term_vspace(p);
1.98 schwarze 987: return;
1.97 kristaps 988: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 989: term_newln(p);
1.54 kristaps 990:
1.4 kristaps 991: term_word(p, n->string);
1.130 schwarze 992: goto out;
1.52 kristaps 993:
1.102 kristaps 994: case (MAN_EQN):
1.115 kristaps 995: term_eqn(p, n->eqn);
1.97 kristaps 996: return;
1.91 kristaps 997: case (MAN_TBL):
1.97 kristaps 998: /*
999: * Tables are preceded by a newline. Then process a
1000: * table line, which will cause line termination,
1001: */
1.93 kristaps 1002: if (TBL_SPAN_FIRST & n->span->flags)
1003: term_newln(p);
1.92 kristaps 1004: term_tbl(p, n->span);
1.97 kristaps 1005: return;
1.1 kristaps 1006: default:
1007: break;
1008: }
1009:
1.97 kristaps 1010: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
1011: term_fontrepl(p, TERMFONT_NONE);
1012:
1013: c = 1;
1014: if (termacts[n->tok].pre)
1.135 schwarze 1015: c = (*termacts[n->tok].pre)(p, mt, n, meta);
1.97 kristaps 1016:
1.1 kristaps 1017: if (c && n->child)
1.135 schwarze 1018: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 1019:
1.97 kristaps 1020: if (termacts[n->tok].post)
1.135 schwarze 1021: (*termacts[n->tok].post)(p, mt, n, meta);
1.97 kristaps 1022: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
1023: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 1024:
1.130 schwarze 1025: out:
1026: /*
1027: * If we're in a literal context, make sure that words
1028: * together on the same line stay together. This is a
1029: * POST-printing call, so we check the NEXT word. Since
1030: * -man doesn't have nested macros, we don't need to be
1031: * more specific than this.
1032: */
1033: if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&
1.136 schwarze 1034: (NULL == n->next || n->next->line > n->line)) {
1.130 schwarze 1035: rm = p->rmargin;
1036: rmax = p->maxrmargin;
1037: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1038: p->flags |= TERMP_NOSPACE;
1039: if (NULL != n->string && '\0' != *n->string)
1040: term_flushln(p);
1041: else
1042: term_newln(p);
1043: if (rm < rmax && n->parent->tok == MAN_HP) {
1044: p->offset = rm;
1045: p->rmargin = rmax;
1046: } else
1047: p->rmargin = rm;
1048: p->maxrmargin = rmax;
1049: }
1.63 kristaps 1050: if (MAN_EOS & n->flags)
1051: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1052: }
1053:
1054:
1055: static void
1.52 kristaps 1056: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1057: {
1.19 kristaps 1058:
1.135 schwarze 1059: print_man_node(p, mt, n, meta);
1.1 kristaps 1060: if ( ! n->next)
1061: return;
1.135 schwarze 1062: print_man_nodelist(p, mt, n->next, meta);
1.1 kristaps 1063: }
1064:
1065:
1.31 kristaps 1066: static void
1.73 kristaps 1067: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 1068: {
1.123 schwarze 1069: char title[BUFSIZ];
1070: size_t datelen;
1.73 kristaps 1071: const struct man_meta *meta;
1072:
1073: meta = (const struct man_meta *)arg;
1.125 schwarze 1074: assert(meta->title);
1075: assert(meta->msec);
1076: assert(meta->date);
1.1 kristaps 1077:
1.52 kristaps 1078: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1079:
1.69 joerg 1080: term_vspace(p);
1.126 schwarze 1081:
1082: /*
1083: * Temporary, undocumented option to imitate mdoc(7) output.
1084: * In the bottom right corner, use the source instead of
1085: * the title.
1086: */
1087:
1088: if ( ! p->mdocstyle) {
1089: term_vspace(p);
1090: term_vspace(p);
1091: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1092: } else if (meta->source) {
1093: strlcpy(title, meta->source, BUFSIZ);
1094: } else {
1095: title[0] = '\0';
1096: }
1.125 schwarze 1097: datelen = term_strlen(p, meta->date);
1.1 kristaps 1098:
1.126 schwarze 1099: /* Bottom left corner: manual source. */
1100:
1.1 kristaps 1101: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1102: p->offset = 0;
1.123 schwarze 1103: p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;
1.1 kristaps 1104:
1105: if (meta->source)
1106: term_word(p, meta->source);
1107: term_flushln(p);
1108:
1.126 schwarze 1109: /* At the bottom in the middle: manual date. */
1110:
1.117 schwarze 1111: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1112: p->offset = p->rmargin;
1.123 schwarze 1113: p->rmargin = p->maxrmargin - term_strlen(p, title);
1114: if (p->offset + datelen >= p->rmargin)
1115: p->rmargin = p->offset + datelen;
1116:
1.125 schwarze 1117: term_word(p, meta->date);
1.123 schwarze 1118: term_flushln(p);
1119:
1.126 schwarze 1120: /* Bottom right corner: manual title and section. */
1121:
1.123 schwarze 1122: p->flags &= ~TERMP_NOBREAK;
1123: p->flags |= TERMP_NOSPACE;
1124: p->offset = p->rmargin;
1.1 kristaps 1125: p->rmargin = p->maxrmargin;
1126:
1.123 schwarze 1127: term_word(p, title);
1.1 kristaps 1128: term_flushln(p);
1129: }
1130:
1131:
1.31 kristaps 1132: static void
1.73 kristaps 1133: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 1134: {
1.46 kristaps 1135: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 1136: size_t buflen, titlen;
1.135 schwarze 1137: const struct man_meta *meta;
1.73 kristaps 1138:
1.135 schwarze 1139: meta = (const struct man_meta *)arg;
1140: assert(meta->title);
1141: assert(meta->msec);
1.1 kristaps 1142:
1.135 schwarze 1143: if (meta->vol)
1144: strlcpy(buf, meta->vol, BUFSIZ);
1.126 schwarze 1145: else
1146: buf[0] = '\0';
1.77 kristaps 1147: buflen = term_strlen(p, buf);
1.1 kristaps 1148:
1.126 schwarze 1149: /* Top left corner: manual title and section. */
1150:
1.135 schwarze 1151: snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
1.77 kristaps 1152: titlen = term_strlen(p, title);
1.1 kristaps 1153:
1.118 schwarze 1154: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.1 kristaps 1155: p->offset = 0;
1.57 kristaps 1156: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1157: (p->maxrmargin -
1158: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1159: p->maxrmargin - buflen;
1.1 kristaps 1160:
1161: term_word(p, title);
1162: term_flushln(p);
1163:
1.126 schwarze 1164: /* At the top in the middle: manual volume. */
1165:
1.117 schwarze 1166: p->flags |= TERMP_NOSPACE;
1.1 kristaps 1167: p->offset = p->rmargin;
1.57 kristaps 1168: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1169: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1170:
1171: term_word(p, buf);
1172: term_flushln(p);
1173:
1.126 schwarze 1174: /* Top right corner: title and section, again. */
1175:
1.1 kristaps 1176: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1177: if (p->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1178: p->flags |= TERMP_NOSPACE;
1.57 kristaps 1179: p->offset = p->rmargin;
1180: p->rmargin = p->maxrmargin;
1181: term_word(p, title);
1182: term_flushln(p);
1183: }
1.1 kristaps 1184:
1.118 schwarze 1185: p->flags &= ~TERMP_NOSPACE;
1186: p->offset = 0;
1.1 kristaps 1187: p->rmargin = p->maxrmargin;
1.61 kristaps 1188:
1.62 kristaps 1189: /*
1.126 schwarze 1190: * Groff prints three blank lines before the content.
1191: * Do the same, except in the temporary, undocumented
1192: * mode imitating mdoc(7) output.
1.62 kristaps 1193: */
1194:
1.61 kristaps 1195: term_vspace(p);
1.126 schwarze 1196: if ( ! p->mdocstyle) {
1197: term_vspace(p);
1198: term_vspace(p);
1199: }
1.1 kristaps 1200: }
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