Annotation of src/usr.bin/mandoc/man_term.c, Revision 1.197
1.197 ! schwarze 1: /* $OpenBSD: man_term.c,v 1.196 2023/10/24 20:30:49 schwarze Exp $ */
1.1 kristaps 2: /*
1.196 schwarze 3: * Copyright (c) 2010-15,2017-20,2022-23 Ingo Schwarze <schwarze@openbsd.org>
1.84 schwarze 4: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
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: *
1.124 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.124 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 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.
1.188 schwarze 17: *
18: * Plain text formatter for man(7), used by mandoc(1)
19: * for ASCII, UTF-8, PostScript, and PDF output.
1.1 kristaps 20: */
1.13 schwarze 21: #include <sys/types.h>
22:
1.1 kristaps 23: #include <assert.h>
1.11 schwarze 24: #include <ctype.h>
1.117 schwarze 25: #include <limits.h>
1.1 kristaps 26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
29:
1.124 schwarze 30: #include "mandoc_aux.h"
1.184 schwarze 31: #include "mandoc.h"
1.124 schwarze 32: #include "roff.h"
33: #include "man.h"
1.18 schwarze 34: #include "out.h"
1.1 kristaps 35: #include "term.h"
1.188 schwarze 36: #include "term_tag.h"
1.18 schwarze 37: #include "main.h"
1.10 schwarze 38:
1.70 schwarze 39: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.1 kristaps 40:
1.11 schwarze 41: struct mtermp {
1.116 schwarze 42: int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */
1.70 schwarze 43: int lmargincur; /* index of current margin */
44: int lmarginsz; /* actual number of nested margins */
45: size_t offset; /* default offset to visible page */
1.88 schwarze 46: int pardist; /* vert. space before par., unit: [v] */
1.11 schwarze 47: };
48:
1.100 schwarze 49: #define DECL_ARGS struct termp *p, \
1.11 schwarze 50: struct mtermp *mt, \
1.125 schwarze 51: struct roff_node *n, \
1.126 schwarze 52: const struct roff_meta *meta
1.1 kristaps 53:
1.167 schwarze 54: struct man_term_act {
1.1 kristaps 55: int (*pre)(DECL_ARGS);
56: void (*post)(DECL_ARGS);
1.26 schwarze 57: int flags;
58: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 59: };
60:
1.21 schwarze 61: static void print_man_nodelist(DECL_ARGS);
1.19 schwarze 62: static void print_man_node(DECL_ARGS);
1.126 schwarze 63: static void print_man_head(struct termp *,
64: const struct roff_meta *);
65: static void print_man_foot(struct termp *,
66: const struct roff_meta *);
1.100 schwarze 67: static void print_bvspace(struct termp *,
1.187 schwarze 68: struct roff_node *, int);
1.18 schwarze 69:
1.1 kristaps 70: static int pre_B(DECL_ARGS);
1.152 schwarze 71: static int pre_DT(DECL_ARGS);
1.11 schwarze 72: static int pre_HP(DECL_ARGS);
1.1 kristaps 73: static int pre_I(DECL_ARGS);
74: static int pre_IP(DECL_ARGS);
1.196 schwarze 75: static int pre_MR(DECL_ARGS);
1.82 schwarze 76: static int pre_OP(DECL_ARGS);
1.88 schwarze 77: static int pre_PD(DECL_ARGS);
1.1 kristaps 78: static int pre_PP(DECL_ARGS);
1.13 schwarze 79: static int pre_RS(DECL_ARGS);
1.1 kristaps 80: static int pre_SH(DECL_ARGS);
81: static int pre_SS(DECL_ARGS);
1.168 schwarze 82: static int pre_SY(DECL_ARGS);
1.1 kristaps 83: static int pre_TP(DECL_ARGS);
1.91 schwarze 84: static int pre_UR(DECL_ARGS);
1.82 schwarze 85: static int pre_alternate(DECL_ARGS);
1.14 schwarze 86: static int pre_ign(DECL_ARGS);
1.45 schwarze 87: static int pre_in(DECL_ARGS);
88: static int pre_literal(DECL_ARGS);
1.1 kristaps 89:
1.11 schwarze 90: static void post_IP(DECL_ARGS);
91: static void post_HP(DECL_ARGS);
1.13 schwarze 92: static void post_RS(DECL_ARGS);
1.1 kristaps 93: static void post_SH(DECL_ARGS);
1.168 schwarze 94: static void post_SY(DECL_ARGS);
1.11 schwarze 95: static void post_TP(DECL_ARGS);
1.91 schwarze 96: static void post_UR(DECL_ARGS);
1.1 kristaps 97:
1.167 schwarze 98: static const struct man_term_act man_term_acts[MAN_MAX - MAN_TH] = {
1.26 schwarze 99: { NULL, NULL, 0 }, /* TH */
100: { pre_SH, post_SH, 0 }, /* SH */
1.180 schwarze 101: { pre_SS, post_SH, 0 }, /* SS */
1.26 schwarze 102: { pre_TP, post_TP, 0 }, /* TP */
1.166 schwarze 103: { pre_TP, post_TP, 0 }, /* TQ */
1.195 schwarze 104: { pre_PP, NULL, 0 }, /* LP */
1.26 schwarze 105: { pre_PP, NULL, 0 }, /* PP */
1.195 schwarze 106: { pre_PP, NULL, 0 }, /* P */
1.26 schwarze 107: { pre_IP, post_IP, 0 }, /* IP */
1.100 schwarze 108: { pre_HP, post_HP, 0 }, /* HP */
1.26 schwarze 109: { NULL, NULL, 0 }, /* SM */
110: { pre_B, NULL, 0 }, /* SB */
1.51 schwarze 111: { pre_alternate, NULL, 0 }, /* BI */
112: { pre_alternate, NULL, 0 }, /* IB */
113: { pre_alternate, NULL, 0 }, /* BR */
114: { pre_alternate, NULL, 0 }, /* RB */
1.26 schwarze 115: { NULL, NULL, 0 }, /* R */
116: { pre_B, NULL, 0 }, /* B */
117: { pre_I, NULL, 0 }, /* I */
1.51 schwarze 118: { pre_alternate, NULL, 0 }, /* IR */
119: { pre_alternate, NULL, 0 }, /* RI */
1.26 schwarze 120: { NULL, NULL, 0 }, /* RE */
121: { pre_RS, post_RS, 0 }, /* RS */
1.190 schwarze 122: { pre_DT, NULL, MAN_NOTEXT }, /* DT */
1.111 schwarze 123: { pre_ign, NULL, MAN_NOTEXT }, /* UC */
1.88 schwarze 124: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.190 schwarze 125: { pre_ign, NULL, MAN_NOTEXT }, /* AT */
1.45 schwarze 126: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.168 schwarze 127: { pre_SY, post_SY, 0 }, /* SY */
128: { NULL, NULL, 0 }, /* YS */
1.82 schwarze 129: { pre_OP, NULL, 0 }, /* OP */
1.83 schwarze 130: { pre_literal, NULL, 0 }, /* EX */
131: { pre_literal, NULL, 0 }, /* EE */
1.91 schwarze 132: { pre_UR, post_UR, 0 }, /* UR */
133: { NULL, NULL, 0 }, /* UE */
1.161 bentley 134: { pre_UR, post_UR, 0 }, /* MT */
135: { NULL, NULL, 0 }, /* ME */
1.196 schwarze 136: { pre_MR, NULL, 0 }, /* MR */
1.1 kristaps 137: };
1.167 schwarze 138: static const struct man_term_act *man_term_act(enum roff_tok);
1.11 schwarze 139:
1.1 kristaps 140:
1.167 schwarze 141: static const struct man_term_act *
142: man_term_act(enum roff_tok tok)
143: {
144: assert(tok >= MAN_TH && tok <= MAN_MAX);
145: return man_term_acts + (tok - MAN_TH);
146: }
147:
1.16 schwarze 148: void
1.176 schwarze 149: terminal_man(void *arg, const struct roff_meta *man)
1.1 kristaps 150: {
1.180 schwarze 151: struct mtermp mt;
1.18 schwarze 152: struct termp *p;
1.182 schwarze 153: struct roff_node *n, *nc, *nn;
1.18 schwarze 154:
155: p = (struct termp *)arg;
1.156 schwarze 156: p->tcol->rmargin = p->maxrmargin = p->defrmargin;
1.151 schwarze 157: term_tab_set(p, NULL);
158: term_tab_set(p, "T");
159: term_tab_set(p, ".5i");
1.18 schwarze 160:
1.180 schwarze 161: memset(&mt, 0, sizeof(mt));
1.197 ! schwarze 162: mt.lmargin[mt.lmargincur] = term_len(p, 7);
1.77 schwarze 163: mt.offset = term_len(p, p->defindent);
1.88 schwarze 164: mt.pardist = 1;
1.11 schwarze 165:
1.134 schwarze 166: n = man->first->child;
1.104 schwarze 167: if (p->synopsisonly) {
1.182 schwarze 168: for (nn = NULL; n != NULL; n = n->next) {
169: if (n->tok != MAN_SH)
170: continue;
171: nc = n->child->child;
172: if (nc->type != ROFFT_TEXT)
173: continue;
174: if (strcmp(nc->string, "SYNOPSIS") == 0)
1.104 schwarze 175: break;
1.182 schwarze 176: if (nn == NULL && strcmp(nc->string, "NAME") == 0)
177: nn = n;
1.104 schwarze 178: }
1.182 schwarze 179: if (n == NULL)
180: n = nn;
181: p->flags |= TERMP_NOSPACE;
182: if (n != NULL && (n = n->child->next->child) != NULL)
183: print_man_nodelist(p, &mt, n, man);
184: term_newln(p);
1.104 schwarze 185: } else {
1.176 schwarze 186: term_begin(p, print_man_head, print_man_foot, man);
1.104 schwarze 187: p->flags |= TERMP_NOSPACE;
188: if (n != NULL)
1.176 schwarze 189: print_man_nodelist(p, &mt, n, man);
1.104 schwarze 190: term_end(p);
191: }
1.1 kristaps 192: }
193:
1.69 schwarze 194: /*
195: * Printing leading vertical space before a block.
196: * This is used for the paragraph macros.
197: * The rules are pretty simple, since there's very little nesting going
198: * on here. Basically, if we're the first within another block (SS/SH),
199: * then don't emit vertical space. If we are (RS), then do. If not the
200: * first, print it.
201: */
1.18 schwarze 202: static void
1.187 schwarze 203: print_bvspace(struct termp *p, struct roff_node *n, int pardist)
1.18 schwarze 204: {
1.187 schwarze 205: struct roff_node *nch;
206: int i;
1.69 schwarze 207:
1.18 schwarze 208: term_newln(p);
1.64 schwarze 209:
1.187 schwarze 210: if (n->body != NULL &&
211: (nch = roff_node_child(n->body)) != NULL &&
212: nch->type == ROFFT_TBL)
213: return;
214:
215: if (n->parent->tok != MAN_RS && roff_node_prev(n) == NULL)
216: return;
1.11 schwarze 217:
1.88 schwarze 218: for (i = 0; i < pardist; i++)
219: term_vspace(p);
1.174 schwarze 220: }
1.100 schwarze 221:
1.14 schwarze 222: static int
223: pre_ign(DECL_ARGS)
224: {
1.138 schwarze 225: return 0;
1.11 schwarze 226: }
227:
1.1 kristaps 228: static int
229: pre_I(DECL_ARGS)
230: {
1.21 schwarze 231: term_fontrepl(p, TERMFONT_UNDER);
1.138 schwarze 232: return 1;
1.1 kristaps 233: }
234:
1.11 schwarze 235: static int
1.45 schwarze 236: pre_literal(DECL_ARGS)
1.11 schwarze 237: {
1.45 schwarze 238: term_newln(p);
1.53 schwarze 239:
1.72 schwarze 240: /*
241: * Unlike .IP and .TP, .HP does not have a HEAD.
242: * So in case a second call to term_flushln() is needed,
243: * indentation has to be set up explicitly.
244: */
1.156 schwarze 245: if (n->parent->tok == MAN_HP && p->tcol->rmargin < p->maxrmargin) {
246: p->tcol->offset = p->tcol->rmargin;
247: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 248: p->trailspace = 0;
1.99 schwarze 249: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.72 schwarze 250: p->flags |= TERMP_NOSPACE;
251: }
1.138 schwarze 252: return 0;
1.11 schwarze 253: }
254:
255: static int
1.88 schwarze 256: pre_PD(DECL_ARGS)
257: {
1.113 schwarze 258: struct roffsu su;
1.88 schwarze 259:
260: n = n->child;
1.113 schwarze 261: if (n == NULL) {
1.88 schwarze 262: mt->pardist = 1;
1.138 schwarze 263: return 0;
1.88 schwarze 264: }
1.124 schwarze 265: assert(n->type == ROFFT_TEXT);
1.157 schwarze 266: if (a2roffsu(n->string, &su, SCALE_VS) != NULL)
1.113 schwarze 267: mt->pardist = term_vspan(p, &su);
1.138 schwarze 268: return 0;
1.88 schwarze 269: }
270:
271: static int
1.51 schwarze 272: pre_alternate(DECL_ARGS)
1.1 kristaps 273: {
1.51 schwarze 274: enum termfont font[2];
1.125 schwarze 275: struct roff_node *nn;
1.178 schwarze 276: int i;
1.1 kristaps 277:
1.51 schwarze 278: switch (n->tok) {
1.100 schwarze 279: case MAN_RB:
1.51 schwarze 280: font[0] = TERMFONT_NONE;
281: font[1] = TERMFONT_BOLD;
282: break;
1.100 schwarze 283: case MAN_RI:
1.51 schwarze 284: font[0] = TERMFONT_NONE;
285: font[1] = TERMFONT_UNDER;
286: break;
1.100 schwarze 287: case MAN_BR:
1.51 schwarze 288: font[0] = TERMFONT_BOLD;
289: font[1] = TERMFONT_NONE;
290: break;
1.100 schwarze 291: case MAN_BI:
1.51 schwarze 292: font[0] = TERMFONT_BOLD;
293: font[1] = TERMFONT_UNDER;
294: break;
1.100 schwarze 295: case MAN_IR:
1.51 schwarze 296: font[0] = TERMFONT_UNDER;
297: font[1] = TERMFONT_NONE;
298: break;
1.100 schwarze 299: case MAN_IB:
1.51 schwarze 300: font[0] = TERMFONT_UNDER;
301: font[1] = TERMFONT_BOLD;
302: break;
303: default:
304: abort();
305: }
1.178 schwarze 306: for (i = 0, nn = n->child; nn != NULL; nn = nn->next, i = 1 - i) {
1.51 schwarze 307: term_fontrepl(p, font[i]);
1.132 schwarze 308: assert(nn->type == ROFFT_TEXT);
309: term_word(p, nn->string);
1.141 schwarze 310: if (nn->flags & NODE_EOS)
1.183 schwarze 311: p->flags |= TERMP_SENTENCE;
1.180 schwarze 312: if (nn->next != NULL)
1.1 kristaps 313: p->flags |= TERMP_NOSPACE;
314: }
1.138 schwarze 315: return 0;
1.1 kristaps 316: }
317:
318: static int
319: pre_B(DECL_ARGS)
320: {
1.21 schwarze 321: term_fontrepl(p, TERMFONT_BOLD);
1.138 schwarze 322: return 1;
1.196 schwarze 323: }
324:
325: static int
326: pre_MR(DECL_ARGS)
327: {
328: term_fontrepl(p, TERMFONT_NONE);
329: n = n->child;
330: if (n != NULL) {
331: term_word(p, n->string); /* name */
332: p->flags |= TERMP_NOSPACE;
333: }
334: term_word(p, "(");
335: p->flags |= TERMP_NOSPACE;
336: if (n != NULL && (n = n->next) != NULL) {
337: term_word(p, n->string); /* section */
338: p->flags |= TERMP_NOSPACE;
339: }
340: term_word(p, ")");
341: if (n != NULL && (n = n->next) != NULL) {
342: p->flags |= TERMP_NOSPACE;
343: term_word(p, n->string); /* suffix */
344: }
345: return 0;
1.82 schwarze 346: }
347:
348: static int
349: pre_OP(DECL_ARGS)
350: {
351: term_word(p, "[");
1.169 schwarze 352: p->flags |= TERMP_KEEP | TERMP_NOSPACE;
1.82 schwarze 353:
1.180 schwarze 354: if ((n = n->child) != NULL) {
1.82 schwarze 355: term_fontrepl(p, TERMFONT_BOLD);
356: term_word(p, n->string);
357: }
1.180 schwarze 358: if (n != NULL && n->next != NULL) {
1.82 schwarze 359: term_fontrepl(p, TERMFONT_UNDER);
360: term_word(p, n->next->string);
361: }
362: term_fontrepl(p, TERMFONT_NONE);
1.169 schwarze 363: p->flags &= ~TERMP_KEEP;
1.82 schwarze 364: p->flags |= TERMP_NOSPACE;
365: term_word(p, "]");
1.138 schwarze 366: return 0;
1.1 kristaps 367: }
368:
369: static int
1.45 schwarze 370: pre_in(DECL_ARGS)
1.11 schwarze 371: {
1.116 schwarze 372: struct roffsu su;
373: const char *cp;
1.45 schwarze 374: size_t v;
1.116 schwarze 375: int less;
1.45 schwarze 376:
377: term_newln(p);
378:
1.156 schwarze 379: if (n->child == NULL) {
380: p->tcol->offset = mt->offset;
1.138 schwarze 381: return 0;
1.45 schwarze 382: }
1.11 schwarze 383:
1.45 schwarze 384: cp = n->child->string;
385: less = 0;
1.11 schwarze 386:
1.180 schwarze 387: if (*cp == '-')
1.45 schwarze 388: less = -1;
1.180 schwarze 389: else if (*cp == '+')
1.45 schwarze 390: less = 1;
391: else
392: cp--;
393:
1.157 schwarze 394: if (a2roffsu(++cp, &su, SCALE_EN) == NULL)
1.138 schwarze 395: return 0;
1.45 schwarze 396:
1.158 schwarze 397: v = term_hen(p, &su);
1.45 schwarze 398:
399: if (less < 0)
1.156 schwarze 400: p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset;
1.45 schwarze 401: else if (less > 0)
1.156 schwarze 402: p->tcol->offset += v;
1.100 schwarze 403: else
1.156 schwarze 404: p->tcol->offset = v;
405: if (p->tcol->offset > SHRT_MAX)
406: p->tcol->offset = term_len(p, p->defindent);
1.8 schwarze 407:
1.152 schwarze 408: return 0;
409: }
410:
411: static int
412: pre_DT(DECL_ARGS)
413: {
414: term_tab_set(p, NULL);
415: term_tab_set(p, "T");
416: term_tab_set(p, ".5i");
1.138 schwarze 417: return 0;
1.8 schwarze 418: }
419:
420: static int
1.11 schwarze 421: pre_HP(DECL_ARGS)
422: {
1.116 schwarze 423: struct roffsu su;
1.125 schwarze 424: const struct roff_node *nn;
1.116 schwarze 425: int len;
1.11 schwarze 426:
427: switch (n->type) {
1.124 schwarze 428: case ROFFT_BLOCK:
1.88 schwarze 429: print_bvspace(p, n, mt->pardist);
1.138 schwarze 430: return 1;
1.180 schwarze 431: case ROFFT_HEAD:
432: return 0;
1.124 schwarze 433: case ROFFT_BODY:
1.11 schwarze 434: break;
435: default:
1.180 schwarze 436: abort();
1.11 schwarze 437: }
438:
1.179 schwarze 439: if (n->child == NULL)
440: return 0;
441:
442: if ((n->child->flags & NODE_NOFILL) == 0) {
1.99 schwarze 443: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.93 schwarze 444: p->trailspace = 2;
1.84 schwarze 445: }
446:
1.11 schwarze 447: /* Calculate offset. */
448:
1.116 schwarze 449: if ((nn = n->parent->head->child) != NULL &&
1.157 schwarze 450: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 451: len = term_hen(p, &su);
1.117 schwarze 452: if (len < 0 && (size_t)(-len) > mt->offset)
453: len = -mt->offset;
454: else if (len > SHRT_MAX)
455: len = term_len(p, p->defindent);
1.116 schwarze 456: mt->lmargin[mt->lmargincur] = len;
457: } else
458: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 459:
1.156 schwarze 460: p->tcol->offset = mt->offset;
461: p->tcol->rmargin = mt->offset + len;
1.138 schwarze 462: return 1;
1.11 schwarze 463: }
464:
465: static void
466: post_HP(DECL_ARGS)
467: {
468: switch (n->type) {
1.180 schwarze 469: case ROFFT_BLOCK:
470: case ROFFT_HEAD:
471: break;
1.124 schwarze 472: case ROFFT_BODY:
1.90 schwarze 473: term_newln(p);
1.127 schwarze 474:
475: /*
476: * Compatibility with a groff bug.
477: * The .HP macro uses the undocumented .tag request
478: * which causes a line break and cancels no-space
479: * mode even if there isn't any output.
480: */
481:
482: if (n->child == NULL)
483: term_vspace(p);
484:
1.99 schwarze 485: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.93 schwarze 486: p->trailspace = 0;
1.156 schwarze 487: p->tcol->offset = mt->offset;
488: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 489: break;
490: default:
1.180 schwarze 491: abort();
1.11 schwarze 492: }
493: }
494:
495: static int
1.1 kristaps 496: pre_PP(DECL_ARGS)
497: {
1.11 schwarze 498: switch (n->type) {
1.124 schwarze 499: case ROFFT_BLOCK:
1.197 ! schwarze 500: mt->lmargin[mt->lmargincur] = term_len(p, 7);
1.88 schwarze 501: print_bvspace(p, n, mt->pardist);
1.11 schwarze 502: break;
1.180 schwarze 503: case ROFFT_HEAD:
504: return 0;
505: case ROFFT_BODY:
1.156 schwarze 506: p->tcol->offset = mt->offset;
1.11 schwarze 507: break;
1.180 schwarze 508: default:
509: abort();
1.11 schwarze 510: }
1.180 schwarze 511: return 1;
1.1 kristaps 512: }
513:
514: static int
515: pre_IP(DECL_ARGS)
516: {
1.116 schwarze 517: struct roffsu su;
1.125 schwarze 518: const struct roff_node *nn;
1.178 schwarze 519: int len;
1.11 schwarze 520:
521: switch (n->type) {
1.180 schwarze 522: case ROFFT_BLOCK:
523: print_bvspace(p, n, mt->pardist);
524: return 1;
1.124 schwarze 525: case ROFFT_HEAD:
1.11 schwarze 526: p->flags |= TERMP_NOBREAK;
1.93 schwarze 527: p->trailspace = 1;
1.11 schwarze 528: break;
1.180 schwarze 529: case ROFFT_BODY:
1.192 schwarze 530: p->flags |= TERMP_NOSPACE | TERMP_NONEWLINE;
1.180 schwarze 531: break;
1.11 schwarze 532: default:
1.180 schwarze 533: abort();
1.11 schwarze 534: }
535:
1.57 schwarze 536: /* Calculate the offset from the optional second argument. */
1.116 schwarze 537: if ((nn = n->parent->head->child) != NULL &&
538: (nn = nn->next) != NULL &&
1.157 schwarze 539: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 540: len = term_hen(p, &su);
1.116 schwarze 541: if (len < 0 && (size_t)(-len) > mt->offset)
542: len = -mt->offset;
1.117 schwarze 543: else if (len > SHRT_MAX)
544: len = term_len(p, p->defindent);
545: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 546: } else
547: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 548:
549: switch (n->type) {
1.124 schwarze 550: case ROFFT_HEAD:
1.156 schwarze 551: p->tcol->offset = mt->offset;
552: p->tcol->rmargin = mt->offset + len;
1.188 schwarze 553: if (n->child != NULL)
1.89 schwarze 554: print_man_node(p, mt, n->child, meta);
1.138 schwarze 555: return 0;
1.124 schwarze 556: case ROFFT_BODY:
1.156 schwarze 557: p->tcol->offset = mt->offset + len;
558: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 559: break;
560: default:
1.180 schwarze 561: abort();
1.11 schwarze 562: }
1.138 schwarze 563: return 1;
1.11 schwarze 564: }
1.1 kristaps 565:
1.11 schwarze 566: static void
567: post_IP(DECL_ARGS)
568: {
569: switch (n->type) {
1.180 schwarze 570: case ROFFT_BLOCK:
571: break;
1.124 schwarze 572: case ROFFT_HEAD:
1.11 schwarze 573: term_flushln(p);
574: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 575: p->trailspace = 0;
1.156 schwarze 576: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 577: break;
1.124 schwarze 578: case ROFFT_BODY:
1.57 schwarze 579: term_newln(p);
1.156 schwarze 580: p->tcol->offset = mt->offset;
1.11 schwarze 581: break;
582: default:
1.180 schwarze 583: abort();
1.11 schwarze 584: }
1.1 kristaps 585: }
586:
587: static int
588: pre_TP(DECL_ARGS)
589: {
1.116 schwarze 590: struct roffsu su;
1.125 schwarze 591: struct roff_node *nn;
1.178 schwarze 592: int len;
1.11 schwarze 593:
594: switch (n->type) {
1.180 schwarze 595: case ROFFT_BLOCK:
596: if (n->tok == MAN_TP)
597: print_bvspace(p, n, mt->pardist);
598: return 1;
1.124 schwarze 599: case ROFFT_HEAD:
1.137 schwarze 600: p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
1.93 schwarze 601: p->trailspace = 1;
1.11 schwarze 602: break;
1.124 schwarze 603: case ROFFT_BODY:
1.192 schwarze 604: p->flags |= TERMP_NOSPACE | TERMP_NONEWLINE;
1.11 schwarze 605: break;
606: default:
1.180 schwarze 607: abort();
1.11 schwarze 608: }
609:
610: /* Calculate offset. */
1.1 kristaps 611:
1.116 schwarze 612: if ((nn = n->parent->head->child) != NULL &&
1.141 schwarze 613: nn->string != NULL && ! (NODE_LINE & nn->flags) &&
1.157 schwarze 614: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 615: len = term_hen(p, &su);
1.116 schwarze 616: if (len < 0 && (size_t)(-len) > mt->offset)
617: len = -mt->offset;
1.117 schwarze 618: else if (len > SHRT_MAX)
619: len = term_len(p, p->defindent);
620: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 621: } else
622: len = mt->lmargin[mt->lmargincur];
1.8 schwarze 623:
1.11 schwarze 624: switch (n->type) {
1.124 schwarze 625: case ROFFT_HEAD:
1.156 schwarze 626: p->tcol->offset = mt->offset;
627: p->tcol->rmargin = mt->offset + len;
1.11 schwarze 628:
629: /* Don't print same-line elements. */
1.95 schwarze 630: nn = n->child;
1.180 schwarze 631: while (nn != NULL && (nn->flags & NODE_LINE) == 0)
1.95 schwarze 632: nn = nn->next;
1.185 schwarze 633:
1.180 schwarze 634: while (nn != NULL) {
1.95 schwarze 635: print_man_node(p, mt, nn, meta);
636: nn = nn->next;
637: }
1.138 schwarze 638: return 0;
1.124 schwarze 639: case ROFFT_BODY:
1.156 schwarze 640: p->tcol->offset = mt->offset + len;
641: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 642: p->trailspace = 0;
1.137 schwarze 643: p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
1.11 schwarze 644: break;
645: default:
1.180 schwarze 646: abort();
1.11 schwarze 647: }
1.138 schwarze 648: return 1;
1.11 schwarze 649: }
1.1 kristaps 650:
1.11 schwarze 651: static void
652: post_TP(DECL_ARGS)
653: {
654: switch (n->type) {
1.180 schwarze 655: case ROFFT_BLOCK:
656: break;
1.124 schwarze 657: case ROFFT_HEAD:
1.11 schwarze 658: term_flushln(p);
659: break;
1.124 schwarze 660: case ROFFT_BODY:
1.57 schwarze 661: term_newln(p);
1.156 schwarze 662: p->tcol->offset = mt->offset;
1.11 schwarze 663: break;
664: default:
1.180 schwarze 665: abort();
1.11 schwarze 666: }
1.1 kristaps 667: }
668:
669: static int
670: pre_SS(DECL_ARGS)
671: {
1.88 schwarze 672: int i;
1.1 kristaps 673:
1.11 schwarze 674: switch (n->type) {
1.124 schwarze 675: case ROFFT_BLOCK:
1.197 ! schwarze 676: mt->lmargin[mt->lmargincur] = term_len(p, 7);
1.77 schwarze 677: mt->offset = term_len(p, p->defindent);
1.111 schwarze 678:
679: /*
680: * No vertical space before the first subsection
681: * and after an empty subsection.
682: */
683:
1.187 schwarze 684: if ((n = roff_node_prev(n)) == NULL ||
685: (n->tok == MAN_SS && roff_node_child(n->body) == NULL))
1.11 schwarze 686: break;
1.111 schwarze 687:
1.88 schwarze 688: for (i = 0; i < mt->pardist; i++)
689: term_vspace(p);
1.11 schwarze 690: break;
1.124 schwarze 691: case ROFFT_HEAD:
1.21 schwarze 692: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 693: p->tcol->offset = term_len(p, 3);
694: p->tcol->rmargin = mt->offset;
1.129 schwarze 695: p->trailspace = mt->offset;
696: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 697: break;
1.124 schwarze 698: case ROFFT_BODY:
1.156 schwarze 699: p->tcol->offset = mt->offset;
700: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 701: p->trailspace = 0;
702: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 703: break;
704: default:
705: break;
706: }
1.138 schwarze 707: return 1;
1.1 kristaps 708: }
709:
710: static int
711: pre_SH(DECL_ARGS)
712: {
1.88 schwarze 713: int i;
1.1 kristaps 714:
1.11 schwarze 715: switch (n->type) {
1.124 schwarze 716: case ROFFT_BLOCK:
1.197 ! schwarze 717: mt->lmargin[mt->lmargincur] = term_len(p, 7);
1.77 schwarze 718: mt->offset = term_len(p, p->defindent);
1.111 schwarze 719:
720: /*
721: * No vertical space before the first section
722: * and after an empty section.
723: */
724:
1.187 schwarze 725: if ((n = roff_node_prev(n)) == NULL ||
726: (n->tok == MAN_SH && roff_node_child(n->body) == NULL))
1.29 schwarze 727: break;
1.111 schwarze 728:
1.88 schwarze 729: for (i = 0; i < mt->pardist; i++)
730: term_vspace(p);
1.11 schwarze 731: break;
1.124 schwarze 732: case ROFFT_HEAD:
1.21 schwarze 733: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 734: p->tcol->offset = 0;
735: p->tcol->rmargin = mt->offset;
1.129 schwarze 736: p->trailspace = mt->offset;
737: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 738: break;
1.124 schwarze 739: case ROFFT_BODY:
1.156 schwarze 740: p->tcol->offset = mt->offset;
741: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 742: p->trailspace = 0;
743: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 744: break;
745: default:
1.180 schwarze 746: abort();
1.11 schwarze 747: }
1.138 schwarze 748: return 1;
1.1 kristaps 749: }
750:
751: static void
752: post_SH(DECL_ARGS)
753: {
1.11 schwarze 754: switch (n->type) {
1.180 schwarze 755: case ROFFT_BLOCK:
756: break;
1.124 schwarze 757: case ROFFT_HEAD:
758: case ROFFT_BODY:
1.11 schwarze 759: term_newln(p);
760: break;
761: default:
1.180 schwarze 762: abort();
1.13 schwarze 763: }
764: }
765:
766: static int
767: pre_RS(DECL_ARGS)
768: {
1.116 schwarze 769: struct roffsu su;
1.13 schwarze 770:
771: switch (n->type) {
1.124 schwarze 772: case ROFFT_BLOCK:
1.13 schwarze 773: term_newln(p);
1.138 schwarze 774: return 1;
1.124 schwarze 775: case ROFFT_HEAD:
1.138 schwarze 776: return 0;
1.180 schwarze 777: case ROFFT_BODY:
778: break;
1.13 schwarze 779: default:
1.180 schwarze 780: abort();
1.13 schwarze 781: }
782:
1.118 schwarze 783: n = n->parent->head;
784: n->aux = SHRT_MAX + 1;
1.130 schwarze 785: if (n->child == NULL)
786: n->aux = mt->lmargin[mt->lmargincur];
1.157 schwarze 787: else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
1.158 schwarze 788: n->aux = term_hen(p, &su);
1.118 schwarze 789: if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
790: n->aux = -mt->offset;
791: else if (n->aux > SHRT_MAX)
792: n->aux = term_len(p, p->defindent);
1.13 schwarze 793:
1.118 schwarze 794: mt->offset += n->aux;
1.156 schwarze 795: p->tcol->offset = mt->offset;
796: p->tcol->rmargin = p->maxrmargin;
1.13 schwarze 797:
1.70 schwarze 798: if (++mt->lmarginsz < MAXMARGINS)
799: mt->lmargincur = mt->lmarginsz;
800:
1.197 ! schwarze 801: mt->lmargin[mt->lmargincur] = term_len(p, 7);
1.138 schwarze 802: return 1;
1.13 schwarze 803: }
804:
805: static void
806: post_RS(DECL_ARGS)
807: {
808: switch (n->type) {
1.124 schwarze 809: case ROFFT_BLOCK:
810: case ROFFT_HEAD:
1.69 schwarze 811: return;
1.180 schwarze 812: case ROFFT_BODY:
813: break;
1.13 schwarze 814: default:
1.180 schwarze 815: abort();
1.11 schwarze 816: }
1.180 schwarze 817: term_newln(p);
1.118 schwarze 818: mt->offset -= n->parent->head->aux;
1.156 schwarze 819: p->tcol->offset = mt->offset;
1.70 schwarze 820: if (--mt->lmarginsz < MAXMARGINS)
821: mt->lmargincur = mt->lmarginsz;
1.168 schwarze 822: }
823:
824: static int
825: pre_SY(DECL_ARGS)
826: {
827: const struct roff_node *nn;
828: int len;
829:
830: switch (n->type) {
831: case ROFFT_BLOCK:
1.187 schwarze 832: if ((nn = roff_node_prev(n)) == NULL || nn->tok != MAN_SY)
1.170 schwarze 833: print_bvspace(p, n, mt->pardist);
1.168 schwarze 834: return 1;
835: case ROFFT_HEAD:
836: case ROFFT_BODY:
837: break;
838: default:
839: abort();
840: }
841:
842: nn = n->parent->head->child;
1.172 schwarze 843: len = nn == NULL ? 1 : term_strlen(p, nn->string) + 1;
1.168 schwarze 844:
845: switch (n->type) {
846: case ROFFT_HEAD:
847: p->tcol->offset = mt->offset;
848: p->tcol->rmargin = mt->offset + len;
1.181 schwarze 849: if (n->next->child == NULL ||
850: (n->next->child->flags & NODE_NOFILL) == 0)
851: p->flags |= TERMP_NOBREAK;
1.168 schwarze 852: term_fontrepl(p, TERMFONT_BOLD);
853: break;
854: case ROFFT_BODY:
855: mt->lmargin[mt->lmargincur] = len;
856: p->tcol->offset = mt->offset + len;
857: p->tcol->rmargin = p->maxrmargin;
858: p->flags |= TERMP_NOSPACE;
859: break;
860: default:
861: abort();
862: }
863: return 1;
864: }
865:
866: static void
867: post_SY(DECL_ARGS)
868: {
869: switch (n->type) {
1.180 schwarze 870: case ROFFT_BLOCK:
871: break;
1.168 schwarze 872: case ROFFT_HEAD:
873: term_flushln(p);
874: p->flags &= ~TERMP_NOBREAK;
875: break;
876: case ROFFT_BODY:
877: term_newln(p);
878: p->tcol->offset = mt->offset;
879: break;
880: default:
1.180 schwarze 881: abort();
1.168 schwarze 882: }
1.91 schwarze 883: }
884:
885: static int
886: pre_UR(DECL_ARGS)
887: {
1.138 schwarze 888: return n->type != ROFFT_HEAD;
1.91 schwarze 889: }
890:
891: static void
892: post_UR(DECL_ARGS)
893: {
1.124 schwarze 894: if (n->type != ROFFT_BLOCK)
1.91 schwarze 895: return;
896:
897: term_word(p, "<");
898: p->flags |= TERMP_NOSPACE;
899:
1.180 schwarze 900: if (n->child->child != NULL)
1.91 schwarze 901: print_man_node(p, mt, n->child->child, meta);
902:
903: p->flags |= TERMP_NOSPACE;
904: term_word(p, ">");
1.47 schwarze 905: }
906:
1.1 kristaps 907: static void
1.19 schwarze 908: print_man_node(DECL_ARGS)
1.1 kristaps 909: {
1.167 schwarze 910: const struct man_term_act *act;
911: int c;
1.1 kristaps 912:
1.192 schwarze 913: /*
914: * In no-fill mode, break the output line at the beginning
915: * of new input lines except after \c, and nowhere else.
916: */
917:
918: if (n->flags & NODE_NOFILL) {
919: if (n->flags & NODE_LINE &&
920: (p->flags & TERMP_NONEWLINE) == 0)
921: term_newln(p);
922: p->flags |= TERMP_BRNEVER;
1.193 schwarze 923: } else {
924: if (n->flags & NODE_LINE)
925: term_tab_ref(p);
1.192 schwarze 926: p->flags &= ~TERMP_BRNEVER;
1.193 schwarze 927: }
1.192 schwarze 928:
1.188 schwarze 929: if (n->flags & NODE_ID)
930: term_tag_write(n, p->line);
931:
1.1 kristaps 932: switch (n->type) {
1.124 schwarze 933: case ROFFT_TEXT:
1.61 schwarze 934: /*
935: * If we have a blank line, output a vertical space.
936: * If we have a space as the first character, break
937: * before printing the line's data.
938: */
1.153 schwarze 939: if (*n->string == '\0') {
1.160 schwarze 940: if (p->flags & TERMP_NONEWLINE)
941: term_newln(p);
942: else
943: term_vspace(p);
1.61 schwarze 944: return;
1.153 schwarze 945: } else if (*n->string == ' ' && n->flags & NODE_LINE &&
946: (p->flags & TERMP_NONEWLINE) == 0)
1.60 schwarze 947: term_newln(p);
1.165 schwarze 948: else if (n->flags & NODE_DELIMC)
949: p->flags |= TERMP_NOSPACE;
1.21 schwarze 950:
1.1 kristaps 951: term_word(p, n->string);
1.84 schwarze 952: goto out;
1.163 schwarze 953: case ROFFT_COMMENT:
954: return;
1.124 schwarze 955: case ROFFT_EQN:
1.141 schwarze 956: if ( ! (n->flags & NODE_LINE))
1.105 schwarze 957: p->flags |= TERMP_NOSPACE;
1.71 schwarze 958: term_eqn(p, n->eqn);
1.141 schwarze 959: if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.106 schwarze 960: p->flags |= TERMP_NOSPACE;
1.61 schwarze 961: return;
1.124 schwarze 962: case ROFFT_TBL:
1.122 schwarze 963: if (p->tbl.cols == NULL)
1.194 schwarze 964: term_newln(p);
1.58 schwarze 965: term_tbl(p, n->span);
1.61 schwarze 966: return;
1.1 kristaps 967: default:
968: break;
969: }
1.177 schwarze 970:
1.146 schwarze 971: if (n->tok < ROFF_MAX) {
1.147 schwarze 972: roff_term_pre(p, n);
1.146 schwarze 973: return;
974: }
975:
1.167 schwarze 976: act = man_term_act(n->tok);
1.173 schwarze 977: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 978: term_fontrepl(p, TERMFONT_NONE);
979:
980: c = 1;
1.167 schwarze 981: if (act->pre != NULL)
982: c = (*act->pre)(p, mt, n, meta);
1.61 schwarze 983:
1.180 schwarze 984: if (c && n->child != NULL)
1.89 schwarze 985: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 986:
1.167 schwarze 987: if (act->post != NULL)
988: (*act->post)(p, mt, n, meta);
1.173 schwarze 989: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 990: term_fontrepl(p, TERMFONT_NONE);
1.30 schwarze 991:
1.84 schwarze 992: out:
1.192 schwarze 993: if (n->parent->tok == MAN_HP && n->parent->type == ROFFT_BODY &&
994: n->prev == NULL && n->flags & NODE_NOFILL) {
995: term_newln(p);
996: p->tcol->offset = p->tcol->rmargin;
997: p->tcol->rmargin = p->maxrmargin;
1.84 schwarze 998: }
1.180 schwarze 999: if (n->flags & NODE_EOS)
1.30 schwarze 1000: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1001: }
1002:
1003: static void
1.21 schwarze 1004: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1005: {
1.121 schwarze 1006: while (n != NULL) {
1007: print_man_node(p, mt, n, meta);
1008: n = n->next;
1009: }
1.1 kristaps 1010: }
1011:
1012: static void
1.126 schwarze 1013: print_man_foot(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1014: {
1.101 schwarze 1015: char *title;
1.109 schwarze 1016: size_t datelen, titlen;
1.41 schwarze 1017:
1.80 schwarze 1018: assert(meta->title);
1019: assert(meta->msec);
1020: assert(meta->date);
1.21 schwarze 1021:
1022: term_fontrepl(p, TERMFONT_NONE);
1.1 kristaps 1023:
1.103 schwarze 1024: if (meta->hasbody)
1025: term_vspace(p);
1.81 schwarze 1026:
1027: /*
1028: * Temporary, undocumented option to imitate mdoc(7) output.
1.126 schwarze 1029: * In the bottom right corner, use the operating system
1030: * instead of the title.
1.81 schwarze 1031: */
1032:
1.79 schwarze 1033: if ( ! p->mdocstyle) {
1.101 schwarze 1034: mandoc_asprintf(&title, "%s(%s)",
1035: meta->title, meta->msec);
1.180 schwarze 1036: } else if (meta->os != NULL) {
1.126 schwarze 1037: title = mandoc_strdup(meta->os);
1.79 schwarze 1038: } else {
1.101 schwarze 1039: title = mandoc_strdup("");
1.79 schwarze 1040: }
1.78 schwarze 1041: datelen = term_strlen(p, meta->date);
1.1 kristaps 1042:
1.126 schwarze 1043: /* Bottom left corner: operating system. */
1.81 schwarze 1044:
1.1 kristaps 1045: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.93 schwarze 1046: p->trailspace = 1;
1.156 schwarze 1047: p->tcol->offset = 0;
1048: p->tcol->rmargin = p->maxrmargin > datelen ?
1.109 schwarze 1049: (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
1.1 kristaps 1050:
1.126 schwarze 1051: if (meta->os)
1052: term_word(p, meta->os);
1.1 kristaps 1053: term_flushln(p);
1054:
1.81 schwarze 1055: /* At the bottom in the middle: manual date. */
1056:
1.156 schwarze 1057: p->tcol->offset = p->tcol->rmargin;
1.109 schwarze 1058: titlen = term_strlen(p, title);
1.156 schwarze 1059: p->tcol->rmargin = p->maxrmargin > titlen ?
1060: p->maxrmargin - titlen : 0;
1.72 schwarze 1061: p->flags |= TERMP_NOSPACE;
1.78 schwarze 1062:
1063: term_word(p, meta->date);
1064: term_flushln(p);
1065:
1.81 schwarze 1066: /* Bottom right corner: manual title and section. */
1067:
1.78 schwarze 1068: p->flags &= ~TERMP_NOBREAK;
1069: p->flags |= TERMP_NOSPACE;
1.93 schwarze 1070: p->trailspace = 0;
1.156 schwarze 1071: p->tcol->offset = p->tcol->rmargin;
1072: p->tcol->rmargin = p->maxrmargin;
1.1 kristaps 1073:
1.78 schwarze 1074: term_word(p, title);
1.1 kristaps 1075: term_flushln(p);
1.164 schwarze 1076:
1077: /*
1078: * Reset the terminal state for more output after the footer:
1079: * Some output modes, in particular PostScript and PDF, print
1080: * the header and the footer into a buffer such that it can be
1081: * reused for multiple output pages, then go on to format the
1082: * main text.
1083: */
1084:
1085: p->tcol->offset = 0;
1086: p->flags = 0;
1087:
1.101 schwarze 1088: free(title);
1.1 kristaps 1089: }
1090:
1091: static void
1.126 schwarze 1092: print_man_head(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1093: {
1.102 schwarze 1094: const char *volume;
1.101 schwarze 1095: char *title;
1.102 schwarze 1096: size_t vollen, titlen;
1.41 schwarze 1097:
1.89 schwarze 1098: assert(meta->title);
1099: assert(meta->msec);
1.1 kristaps 1100:
1.102 schwarze 1101: volume = NULL == meta->vol ? "" : meta->vol;
1102: vollen = term_strlen(p, volume);
1.1 kristaps 1103:
1.81 schwarze 1104: /* Top left corner: manual title and section. */
1105:
1.101 schwarze 1106: mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.42 schwarze 1107: titlen = term_strlen(p, title);
1.1 kristaps 1108:
1.73 schwarze 1109: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.93 schwarze 1110: p->trailspace = 1;
1.156 schwarze 1111: p->tcol->offset = 0;
1112: p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
1.102 schwarze 1113: (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.109 schwarze 1114: vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
1.1 kristaps 1115:
1116: term_word(p, title);
1117: term_flushln(p);
1118:
1.81 schwarze 1119: /* At the top in the middle: manual volume. */
1120:
1.72 schwarze 1121: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1122: p->tcol->offset = p->tcol->rmargin;
1123: p->tcol->rmargin = p->tcol->offset + vollen + titlen <
1124: p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1125:
1.102 schwarze 1126: term_word(p, volume);
1.1 kristaps 1127: term_flushln(p);
1128:
1.81 schwarze 1129: /* Top right corner: title and section, again. */
1130:
1.1 kristaps 1131: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 1132: p->trailspace = 0;
1.156 schwarze 1133: if (p->tcol->rmargin + titlen <= p->maxrmargin) {
1.72 schwarze 1134: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1135: p->tcol->offset = p->tcol->rmargin;
1136: p->tcol->rmargin = p->maxrmargin;
1.25 schwarze 1137: term_word(p, title);
1138: term_flushln(p);
1139: }
1.1 kristaps 1140:
1.73 schwarze 1141: p->flags &= ~TERMP_NOSPACE;
1.156 schwarze 1142: p->tcol->offset = 0;
1143: p->tcol->rmargin = p->maxrmargin;
1.29 schwarze 1144:
1.100 schwarze 1145: /*
1.81 schwarze 1146: * Groff prints three blank lines before the content.
1147: * Do the same, except in the temporary, undocumented
1148: * mode imitating mdoc(7) output.
1.29 schwarze 1149: */
1150:
1151: term_vspace(p);
1.101 schwarze 1152: free(title);
1.1 kristaps 1153: }
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