Annotation of src/usr.bin/mandoc/man_term.c, Revision 1.183
1.183 ! schwarze 1: /* $OpenBSD: man_term.c,v 1.182 2019/06/27 12:19:39 schwarze Exp $ */
1.1 kristaps 2: /*
1.84 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.179 schwarze 4: * Copyright (c) 2010-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.124 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.
1.1 kristaps 17: */
1.13 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
1.11 schwarze 21: #include <ctype.h>
1.117 schwarze 22: #include <limits.h>
1.1 kristaps 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
26:
1.124 schwarze 27: #include "mandoc_aux.h"
28: #include "roff.h"
29: #include "man.h"
1.18 schwarze 30: #include "out.h"
1.1 kristaps 31: #include "term.h"
1.18 schwarze 32: #include "main.h"
1.10 schwarze 33:
1.70 schwarze 34: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.1 kristaps 35:
1.11 schwarze 36: struct mtermp {
1.116 schwarze 37: int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */
1.70 schwarze 38: int lmargincur; /* index of current margin */
39: int lmarginsz; /* actual number of nested margins */
40: size_t offset; /* default offset to visible page */
1.88 schwarze 41: int pardist; /* vert. space before par., unit: [v] */
1.11 schwarze 42: };
43:
1.100 schwarze 44: #define DECL_ARGS struct termp *p, \
1.11 schwarze 45: struct mtermp *mt, \
1.125 schwarze 46: struct roff_node *n, \
1.126 schwarze 47: const struct roff_meta *meta
1.1 kristaps 48:
1.167 schwarze 49: struct man_term_act {
1.1 kristaps 50: int (*pre)(DECL_ARGS);
51: void (*post)(DECL_ARGS);
1.26 schwarze 52: int flags;
53: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 54: };
55:
1.21 schwarze 56: static void print_man_nodelist(DECL_ARGS);
1.19 schwarze 57: static void print_man_node(DECL_ARGS);
1.126 schwarze 58: static void print_man_head(struct termp *,
59: const struct roff_meta *);
60: static void print_man_foot(struct termp *,
61: const struct roff_meta *);
1.100 schwarze 62: static void print_bvspace(struct termp *,
1.125 schwarze 63: const struct roff_node *, int);
1.18 schwarze 64:
1.1 kristaps 65: static int pre_B(DECL_ARGS);
1.152 schwarze 66: static int pre_DT(DECL_ARGS);
1.11 schwarze 67: static int pre_HP(DECL_ARGS);
1.1 kristaps 68: static int pre_I(DECL_ARGS);
69: static int pre_IP(DECL_ARGS);
1.82 schwarze 70: static int pre_OP(DECL_ARGS);
1.88 schwarze 71: static int pre_PD(DECL_ARGS);
1.1 kristaps 72: static int pre_PP(DECL_ARGS);
1.13 schwarze 73: static int pre_RS(DECL_ARGS);
1.1 kristaps 74: static int pre_SH(DECL_ARGS);
75: static int pre_SS(DECL_ARGS);
1.168 schwarze 76: static int pre_SY(DECL_ARGS);
1.1 kristaps 77: static int pre_TP(DECL_ARGS);
1.91 schwarze 78: static int pre_UR(DECL_ARGS);
1.174 schwarze 79: static int pre_abort(DECL_ARGS);
1.82 schwarze 80: static int pre_alternate(DECL_ARGS);
1.14 schwarze 81: static int pre_ign(DECL_ARGS);
1.45 schwarze 82: static int pre_in(DECL_ARGS);
83: static int pre_literal(DECL_ARGS);
1.1 kristaps 84:
1.11 schwarze 85: static void post_IP(DECL_ARGS);
86: static void post_HP(DECL_ARGS);
1.13 schwarze 87: static void post_RS(DECL_ARGS);
1.1 kristaps 88: static void post_SH(DECL_ARGS);
1.168 schwarze 89: static void post_SY(DECL_ARGS);
1.11 schwarze 90: static void post_TP(DECL_ARGS);
1.91 schwarze 91: static void post_UR(DECL_ARGS);
1.1 kristaps 92:
1.167 schwarze 93: static const struct man_term_act man_term_acts[MAN_MAX - MAN_TH] = {
1.26 schwarze 94: { NULL, NULL, 0 }, /* TH */
95: { pre_SH, post_SH, 0 }, /* SH */
1.180 schwarze 96: { pre_SS, post_SH, 0 }, /* SS */
1.26 schwarze 97: { pre_TP, post_TP, 0 }, /* TP */
1.166 schwarze 98: { pre_TP, post_TP, 0 }, /* TQ */
1.174 schwarze 99: { pre_abort, NULL, 0 }, /* LP */
1.26 schwarze 100: { pre_PP, NULL, 0 }, /* PP */
1.174 schwarze 101: { pre_abort, NULL, 0 }, /* P */
1.26 schwarze 102: { pre_IP, post_IP, 0 }, /* IP */
1.100 schwarze 103: { pre_HP, post_HP, 0 }, /* HP */
1.26 schwarze 104: { NULL, NULL, 0 }, /* SM */
105: { pre_B, NULL, 0 }, /* SB */
1.51 schwarze 106: { pre_alternate, NULL, 0 }, /* BI */
107: { pre_alternate, NULL, 0 }, /* IB */
108: { pre_alternate, NULL, 0 }, /* BR */
109: { pre_alternate, NULL, 0 }, /* RB */
1.26 schwarze 110: { NULL, NULL, 0 }, /* R */
111: { pre_B, NULL, 0 }, /* B */
112: { pre_I, NULL, 0 }, /* I */
1.51 schwarze 113: { pre_alternate, NULL, 0 }, /* IR */
114: { pre_alternate, NULL, 0 }, /* RI */
1.26 schwarze 115: { NULL, NULL, 0 }, /* RE */
116: { pre_RS, post_RS, 0 }, /* RS */
1.152 schwarze 117: { pre_DT, NULL, 0 }, /* DT */
1.111 schwarze 118: { pre_ign, NULL, MAN_NOTEXT }, /* UC */
1.88 schwarze 119: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.36 schwarze 120: { pre_ign, NULL, 0 }, /* AT */
1.45 schwarze 121: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.168 schwarze 122: { pre_SY, post_SY, 0 }, /* SY */
123: { NULL, NULL, 0 }, /* YS */
1.82 schwarze 124: { pre_OP, NULL, 0 }, /* OP */
1.83 schwarze 125: { pre_literal, NULL, 0 }, /* EX */
126: { pre_literal, NULL, 0 }, /* EE */
1.91 schwarze 127: { pre_UR, post_UR, 0 }, /* UR */
128: { NULL, NULL, 0 }, /* UE */
1.161 bentley 129: { pre_UR, post_UR, 0 }, /* MT */
130: { NULL, NULL, 0 }, /* ME */
1.1 kristaps 131: };
1.167 schwarze 132: static const struct man_term_act *man_term_act(enum roff_tok);
1.11 schwarze 133:
1.1 kristaps 134:
1.167 schwarze 135: static const struct man_term_act *
136: man_term_act(enum roff_tok tok)
137: {
138: assert(tok >= MAN_TH && tok <= MAN_MAX);
139: return man_term_acts + (tok - MAN_TH);
140: }
141:
1.16 schwarze 142: void
1.176 schwarze 143: terminal_man(void *arg, const struct roff_meta *man)
1.1 kristaps 144: {
1.180 schwarze 145: struct mtermp mt;
1.18 schwarze 146: struct termp *p;
1.182 schwarze 147: struct roff_node *n, *nc, *nn;
1.142 schwarze 148: size_t save_defindent;
1.18 schwarze 149:
150: p = (struct termp *)arg;
1.159 schwarze 151: save_defindent = p->defindent;
152: if (p->synopsisonly == 0 && p->defindent == 0)
153: p->defindent = 7;
1.156 schwarze 154: p->tcol->rmargin = p->maxrmargin = p->defrmargin;
1.151 schwarze 155: term_tab_set(p, NULL);
156: term_tab_set(p, "T");
157: term_tab_set(p, ".5i");
1.18 schwarze 158:
1.180 schwarze 159: memset(&mt, 0, sizeof(mt));
1.77 schwarze 160: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
161: mt.offset = term_len(p, p->defindent);
1.88 schwarze 162: mt.pardist = 1;
1.11 schwarze 163:
1.134 schwarze 164: n = man->first->child;
1.104 schwarze 165: if (p->synopsisonly) {
1.182 schwarze 166: for (nn = NULL; n != NULL; n = n->next) {
167: if (n->tok != MAN_SH)
168: continue;
169: nc = n->child->child;
170: if (nc->type != ROFFT_TEXT)
171: continue;
172: if (strcmp(nc->string, "SYNOPSIS") == 0)
1.104 schwarze 173: break;
1.182 schwarze 174: if (nn == NULL && strcmp(nc->string, "NAME") == 0)
175: nn = n;
1.104 schwarze 176: }
1.182 schwarze 177: if (n == NULL)
178: n = nn;
179: p->flags |= TERMP_NOSPACE;
180: if (n != NULL && (n = n->child->next->child) != NULL)
181: print_man_nodelist(p, &mt, n, man);
182: term_newln(p);
1.104 schwarze 183: } else {
1.176 schwarze 184: term_begin(p, print_man_head, print_man_foot, man);
1.104 schwarze 185: p->flags |= TERMP_NOSPACE;
186: if (n != NULL)
1.176 schwarze 187: print_man_nodelist(p, &mt, n, man);
1.104 schwarze 188: term_end(p);
189: }
1.159 schwarze 190: p->defindent = save_defindent;
1.1 kristaps 191: }
192:
1.69 schwarze 193: /*
194: * Printing leading vertical space before a block.
195: * This is used for the paragraph macros.
196: * The rules are pretty simple, since there's very little nesting going
197: * on here. Basically, if we're the first within another block (SS/SH),
198: * then don't emit vertical space. If we are (RS), then do. If not the
199: * first, print it.
200: */
1.18 schwarze 201: static void
1.125 schwarze 202: print_bvspace(struct termp *p, const struct roff_node *n, int pardist)
1.18 schwarze 203: {
1.88 schwarze 204: int i;
1.69 schwarze 205:
1.18 schwarze 206: term_newln(p);
1.64 schwarze 207:
1.180 schwarze 208: if (n->body != NULL && n->body->child != NULL)
1.124 schwarze 209: if (n->body->child->type == ROFFT_TBL)
1.69 schwarze 210: return;
1.11 schwarze 211:
1.124 schwarze 212: if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)
1.180 schwarze 213: if (n->prev == NULL)
1.69 schwarze 214: return;
1.11 schwarze 215:
1.88 schwarze 216: for (i = 0; i < pardist; i++)
217: term_vspace(p);
1.14 schwarze 218: }
219:
1.174 schwarze 220:
221: static int
222: pre_abort(DECL_ARGS)
223: {
224: abort();
225: }
1.100 schwarze 226:
1.14 schwarze 227: static int
228: pre_ign(DECL_ARGS)
229: {
1.138 schwarze 230: return 0;
1.11 schwarze 231: }
232:
1.1 kristaps 233: static int
234: pre_I(DECL_ARGS)
235: {
1.21 schwarze 236: term_fontrepl(p, TERMFONT_UNDER);
1.138 schwarze 237: return 1;
1.1 kristaps 238: }
239:
1.11 schwarze 240: static int
1.45 schwarze 241: pre_literal(DECL_ARGS)
1.11 schwarze 242: {
1.45 schwarze 243: term_newln(p);
1.53 schwarze 244:
1.72 schwarze 245: /*
246: * Unlike .IP and .TP, .HP does not have a HEAD.
247: * So in case a second call to term_flushln() is needed,
248: * indentation has to be set up explicitly.
249: */
1.156 schwarze 250: if (n->parent->tok == MAN_HP && p->tcol->rmargin < p->maxrmargin) {
251: p->tcol->offset = p->tcol->rmargin;
252: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 253: p->trailspace = 0;
1.99 schwarze 254: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.72 schwarze 255: p->flags |= TERMP_NOSPACE;
256: }
1.138 schwarze 257: return 0;
1.11 schwarze 258: }
259:
260: static int
1.88 schwarze 261: pre_PD(DECL_ARGS)
262: {
1.113 schwarze 263: struct roffsu su;
1.88 schwarze 264:
265: n = n->child;
1.113 schwarze 266: if (n == NULL) {
1.88 schwarze 267: mt->pardist = 1;
1.138 schwarze 268: return 0;
1.88 schwarze 269: }
1.124 schwarze 270: assert(n->type == ROFFT_TEXT);
1.157 schwarze 271: if (a2roffsu(n->string, &su, SCALE_VS) != NULL)
1.113 schwarze 272: mt->pardist = term_vspan(p, &su);
1.138 schwarze 273: return 0;
1.88 schwarze 274: }
275:
276: static int
1.51 schwarze 277: pre_alternate(DECL_ARGS)
1.1 kristaps 278: {
1.51 schwarze 279: enum termfont font[2];
1.125 schwarze 280: struct roff_node *nn;
1.178 schwarze 281: int i;
1.1 kristaps 282:
1.51 schwarze 283: switch (n->tok) {
1.100 schwarze 284: case MAN_RB:
1.51 schwarze 285: font[0] = TERMFONT_NONE;
286: font[1] = TERMFONT_BOLD;
287: break;
1.100 schwarze 288: case MAN_RI:
1.51 schwarze 289: font[0] = TERMFONT_NONE;
290: font[1] = TERMFONT_UNDER;
291: break;
1.100 schwarze 292: case MAN_BR:
1.51 schwarze 293: font[0] = TERMFONT_BOLD;
294: font[1] = TERMFONT_NONE;
295: break;
1.100 schwarze 296: case MAN_BI:
1.51 schwarze 297: font[0] = TERMFONT_BOLD;
298: font[1] = TERMFONT_UNDER;
299: break;
1.100 schwarze 300: case MAN_IR:
1.51 schwarze 301: font[0] = TERMFONT_UNDER;
302: font[1] = TERMFONT_NONE;
303: break;
1.100 schwarze 304: case MAN_IB:
1.51 schwarze 305: font[0] = TERMFONT_UNDER;
306: font[1] = TERMFONT_BOLD;
307: break;
308: default:
309: abort();
310: }
1.178 schwarze 311: for (i = 0, nn = n->child; nn != NULL; nn = nn->next, i = 1 - i) {
1.51 schwarze 312: term_fontrepl(p, font[i]);
1.132 schwarze 313: assert(nn->type == ROFFT_TEXT);
314: term_word(p, nn->string);
1.141 schwarze 315: if (nn->flags & NODE_EOS)
1.183 ! schwarze 316: p->flags |= TERMP_SENTENCE;
1.180 schwarze 317: if (nn->next != NULL)
1.1 kristaps 318: p->flags |= TERMP_NOSPACE;
319: }
1.138 schwarze 320: return 0;
1.1 kristaps 321: }
322:
323: static int
324: pre_B(DECL_ARGS)
325: {
1.21 schwarze 326: term_fontrepl(p, TERMFONT_BOLD);
1.138 schwarze 327: return 1;
1.82 schwarze 328: }
329:
330: static int
331: pre_OP(DECL_ARGS)
332: {
333: term_word(p, "[");
1.169 schwarze 334: p->flags |= TERMP_KEEP | TERMP_NOSPACE;
1.82 schwarze 335:
1.180 schwarze 336: if ((n = n->child) != NULL) {
1.82 schwarze 337: term_fontrepl(p, TERMFONT_BOLD);
338: term_word(p, n->string);
339: }
1.180 schwarze 340: if (n != NULL && n->next != NULL) {
1.82 schwarze 341: term_fontrepl(p, TERMFONT_UNDER);
342: term_word(p, n->next->string);
343: }
344: term_fontrepl(p, TERMFONT_NONE);
1.169 schwarze 345: p->flags &= ~TERMP_KEEP;
1.82 schwarze 346: p->flags |= TERMP_NOSPACE;
347: term_word(p, "]");
1.138 schwarze 348: return 0;
1.1 kristaps 349: }
350:
351: static int
1.45 schwarze 352: pre_in(DECL_ARGS)
1.11 schwarze 353: {
1.116 schwarze 354: struct roffsu su;
355: const char *cp;
1.45 schwarze 356: size_t v;
1.116 schwarze 357: int less;
1.45 schwarze 358:
359: term_newln(p);
360:
1.156 schwarze 361: if (n->child == NULL) {
362: p->tcol->offset = mt->offset;
1.138 schwarze 363: return 0;
1.45 schwarze 364: }
1.11 schwarze 365:
1.45 schwarze 366: cp = n->child->string;
367: less = 0;
1.11 schwarze 368:
1.180 schwarze 369: if (*cp == '-')
1.45 schwarze 370: less = -1;
1.180 schwarze 371: else if (*cp == '+')
1.45 schwarze 372: less = 1;
373: else
374: cp--;
375:
1.157 schwarze 376: if (a2roffsu(++cp, &su, SCALE_EN) == NULL)
1.138 schwarze 377: return 0;
1.45 schwarze 378:
1.158 schwarze 379: v = term_hen(p, &su);
1.45 schwarze 380:
381: if (less < 0)
1.156 schwarze 382: p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset;
1.45 schwarze 383: else if (less > 0)
1.156 schwarze 384: p->tcol->offset += v;
1.100 schwarze 385: else
1.156 schwarze 386: p->tcol->offset = v;
387: if (p->tcol->offset > SHRT_MAX)
388: p->tcol->offset = term_len(p, p->defindent);
1.8 schwarze 389:
1.152 schwarze 390: return 0;
391: }
392:
393: static int
394: pre_DT(DECL_ARGS)
395: {
396: term_tab_set(p, NULL);
397: term_tab_set(p, "T");
398: term_tab_set(p, ".5i");
1.138 schwarze 399: return 0;
1.8 schwarze 400: }
401:
402: static int
1.11 schwarze 403: pre_HP(DECL_ARGS)
404: {
1.116 schwarze 405: struct roffsu su;
1.125 schwarze 406: const struct roff_node *nn;
1.116 schwarze 407: int len;
1.11 schwarze 408:
409: switch (n->type) {
1.124 schwarze 410: case ROFFT_BLOCK:
1.88 schwarze 411: print_bvspace(p, n, mt->pardist);
1.138 schwarze 412: return 1;
1.180 schwarze 413: case ROFFT_HEAD:
414: return 0;
1.124 schwarze 415: case ROFFT_BODY:
1.11 schwarze 416: break;
417: default:
1.180 schwarze 418: abort();
1.11 schwarze 419: }
420:
1.179 schwarze 421: if (n->child == NULL)
422: return 0;
423:
424: if ((n->child->flags & NODE_NOFILL) == 0) {
1.99 schwarze 425: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.93 schwarze 426: p->trailspace = 2;
1.84 schwarze 427: }
428:
1.11 schwarze 429: /* Calculate offset. */
430:
1.116 schwarze 431: if ((nn = n->parent->head->child) != NULL &&
1.157 schwarze 432: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 433: len = term_hen(p, &su);
1.117 schwarze 434: if (len < 0 && (size_t)(-len) > mt->offset)
435: len = -mt->offset;
436: else if (len > SHRT_MAX)
437: len = term_len(p, p->defindent);
1.116 schwarze 438: mt->lmargin[mt->lmargincur] = len;
439: } else
440: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 441:
1.156 schwarze 442: p->tcol->offset = mt->offset;
443: p->tcol->rmargin = mt->offset + len;
1.138 schwarze 444: return 1;
1.11 schwarze 445: }
446:
447: static void
448: post_HP(DECL_ARGS)
449: {
450: switch (n->type) {
1.180 schwarze 451: case ROFFT_BLOCK:
452: case ROFFT_HEAD:
453: break;
1.124 schwarze 454: case ROFFT_BODY:
1.90 schwarze 455: term_newln(p);
1.127 schwarze 456:
457: /*
458: * Compatibility with a groff bug.
459: * The .HP macro uses the undocumented .tag request
460: * which causes a line break and cancels no-space
461: * mode even if there isn't any output.
462: */
463:
464: if (n->child == NULL)
465: term_vspace(p);
466:
1.99 schwarze 467: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.93 schwarze 468: p->trailspace = 0;
1.156 schwarze 469: p->tcol->offset = mt->offset;
470: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 471: break;
472: default:
1.180 schwarze 473: abort();
1.11 schwarze 474: }
475: }
476:
477: static int
1.1 kristaps 478: pre_PP(DECL_ARGS)
479: {
1.11 schwarze 480: switch (n->type) {
1.124 schwarze 481: case ROFFT_BLOCK:
1.77 schwarze 482: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.88 schwarze 483: print_bvspace(p, n, mt->pardist);
1.11 schwarze 484: break;
1.180 schwarze 485: case ROFFT_HEAD:
486: return 0;
487: case ROFFT_BODY:
1.156 schwarze 488: p->tcol->offset = mt->offset;
1.11 schwarze 489: break;
1.180 schwarze 490: default:
491: abort();
1.11 schwarze 492: }
1.180 schwarze 493: return 1;
1.1 kristaps 494: }
495:
496: static int
497: pre_IP(DECL_ARGS)
498: {
1.116 schwarze 499: struct roffsu su;
1.125 schwarze 500: const struct roff_node *nn;
1.178 schwarze 501: int len;
1.11 schwarze 502:
503: switch (n->type) {
1.180 schwarze 504: case ROFFT_BLOCK:
505: print_bvspace(p, n, mt->pardist);
506: return 1;
1.124 schwarze 507: case ROFFT_HEAD:
1.11 schwarze 508: p->flags |= TERMP_NOBREAK;
1.93 schwarze 509: p->trailspace = 1;
1.11 schwarze 510: break;
1.180 schwarze 511: case ROFFT_BODY:
512: p->flags |= TERMP_NOSPACE;
513: break;
1.11 schwarze 514: default:
1.180 schwarze 515: abort();
1.11 schwarze 516: }
517:
1.57 schwarze 518: /* Calculate the offset from the optional second argument. */
1.116 schwarze 519: if ((nn = n->parent->head->child) != NULL &&
520: (nn = nn->next) != NULL &&
1.157 schwarze 521: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 522: len = term_hen(p, &su);
1.116 schwarze 523: if (len < 0 && (size_t)(-len) > mt->offset)
524: len = -mt->offset;
1.117 schwarze 525: else if (len > SHRT_MAX)
526: len = term_len(p, p->defindent);
527: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 528: } else
529: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 530:
531: switch (n->type) {
1.124 schwarze 532: case ROFFT_HEAD:
1.156 schwarze 533: p->tcol->offset = mt->offset;
534: p->tcol->rmargin = mt->offset + len;
1.180 schwarze 535: if (n->child != NULL)
1.89 schwarze 536: print_man_node(p, mt, n->child, meta);
1.138 schwarze 537: return 0;
1.124 schwarze 538: case ROFFT_BODY:
1.156 schwarze 539: p->tcol->offset = mt->offset + len;
540: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 541: break;
542: default:
1.180 schwarze 543: abort();
1.11 schwarze 544: }
1.138 schwarze 545: return 1;
1.11 schwarze 546: }
1.1 kristaps 547:
1.11 schwarze 548: static void
549: post_IP(DECL_ARGS)
550: {
551: switch (n->type) {
1.180 schwarze 552: case ROFFT_BLOCK:
553: break;
1.124 schwarze 554: case ROFFT_HEAD:
1.11 schwarze 555: term_flushln(p);
556: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 557: p->trailspace = 0;
1.156 schwarze 558: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 559: break;
1.124 schwarze 560: case ROFFT_BODY:
1.57 schwarze 561: term_newln(p);
1.156 schwarze 562: p->tcol->offset = mt->offset;
1.11 schwarze 563: break;
564: default:
1.180 schwarze 565: abort();
1.11 schwarze 566: }
1.1 kristaps 567: }
568:
569: static int
570: pre_TP(DECL_ARGS)
571: {
1.116 schwarze 572: struct roffsu su;
1.125 schwarze 573: struct roff_node *nn;
1.178 schwarze 574: int len;
1.11 schwarze 575:
576: switch (n->type) {
1.180 schwarze 577: case ROFFT_BLOCK:
578: if (n->tok == MAN_TP)
579: print_bvspace(p, n, mt->pardist);
580: return 1;
1.124 schwarze 581: case ROFFT_HEAD:
1.137 schwarze 582: p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
1.93 schwarze 583: p->trailspace = 1;
1.11 schwarze 584: break;
1.124 schwarze 585: case ROFFT_BODY:
1.11 schwarze 586: p->flags |= TERMP_NOSPACE;
587: break;
588: default:
1.180 schwarze 589: abort();
1.11 schwarze 590: }
591:
592: /* Calculate offset. */
1.1 kristaps 593:
1.116 schwarze 594: if ((nn = n->parent->head->child) != NULL &&
1.141 schwarze 595: nn->string != NULL && ! (NODE_LINE & nn->flags) &&
1.157 schwarze 596: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 597: len = term_hen(p, &su);
1.116 schwarze 598: if (len < 0 && (size_t)(-len) > mt->offset)
599: len = -mt->offset;
1.117 schwarze 600: else if (len > SHRT_MAX)
601: len = term_len(p, p->defindent);
602: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 603: } else
604: len = mt->lmargin[mt->lmargincur];
1.8 schwarze 605:
1.11 schwarze 606: switch (n->type) {
1.124 schwarze 607: case ROFFT_HEAD:
1.156 schwarze 608: p->tcol->offset = mt->offset;
609: p->tcol->rmargin = mt->offset + len;
1.11 schwarze 610:
611: /* Don't print same-line elements. */
1.95 schwarze 612: nn = n->child;
1.180 schwarze 613: while (nn != NULL && (nn->flags & NODE_LINE) == 0)
1.95 schwarze 614: nn = nn->next;
615:
1.180 schwarze 616: while (nn != NULL) {
1.95 schwarze 617: print_man_node(p, mt, nn, meta);
618: nn = nn->next;
619: }
1.138 schwarze 620: return 0;
1.124 schwarze 621: case ROFFT_BODY:
1.156 schwarze 622: p->tcol->offset = mt->offset + len;
623: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 624: p->trailspace = 0;
1.137 schwarze 625: p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
1.11 schwarze 626: break;
627: default:
1.180 schwarze 628: abort();
1.11 schwarze 629: }
1.138 schwarze 630: return 1;
1.11 schwarze 631: }
1.1 kristaps 632:
1.11 schwarze 633: static void
634: post_TP(DECL_ARGS)
635: {
636: switch (n->type) {
1.180 schwarze 637: case ROFFT_BLOCK:
638: break;
1.124 schwarze 639: case ROFFT_HEAD:
1.11 schwarze 640: term_flushln(p);
641: break;
1.124 schwarze 642: case ROFFT_BODY:
1.57 schwarze 643: term_newln(p);
1.156 schwarze 644: p->tcol->offset = mt->offset;
1.11 schwarze 645: break;
646: default:
1.180 schwarze 647: abort();
1.11 schwarze 648: }
1.1 kristaps 649: }
650:
651: static int
652: pre_SS(DECL_ARGS)
653: {
1.88 schwarze 654: int i;
1.1 kristaps 655:
1.11 schwarze 656: switch (n->type) {
1.124 schwarze 657: case ROFFT_BLOCK:
1.77 schwarze 658: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
659: mt->offset = term_len(p, p->defindent);
1.111 schwarze 660:
661: /*
662: * No vertical space before the first subsection
663: * and after an empty subsection.
664: */
665:
666: do {
667: n = n->prev;
1.162 schwarze 668: } while (n != NULL && n->tok >= MAN_TH &&
1.167 schwarze 669: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.163 schwarze 670: if (n == NULL || n->type == ROFFT_COMMENT ||
671: (n->tok == MAN_SS && n->body->child == NULL))
1.11 schwarze 672: break;
1.111 schwarze 673:
1.88 schwarze 674: for (i = 0; i < mt->pardist; i++)
675: term_vspace(p);
1.11 schwarze 676: break;
1.124 schwarze 677: case ROFFT_HEAD:
1.21 schwarze 678: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 679: p->tcol->offset = term_len(p, 3);
680: p->tcol->rmargin = mt->offset;
1.129 schwarze 681: p->trailspace = mt->offset;
682: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 683: break;
1.124 schwarze 684: case ROFFT_BODY:
1.156 schwarze 685: p->tcol->offset = mt->offset;
686: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 687: p->trailspace = 0;
688: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 689: break;
690: default:
691: break;
692: }
1.138 schwarze 693: return 1;
1.1 kristaps 694: }
695:
696: static int
697: pre_SH(DECL_ARGS)
698: {
1.88 schwarze 699: int i;
1.1 kristaps 700:
1.11 schwarze 701: switch (n->type) {
1.124 schwarze 702: case ROFFT_BLOCK:
1.77 schwarze 703: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
704: mt->offset = term_len(p, p->defindent);
1.111 schwarze 705:
706: /*
707: * No vertical space before the first section
708: * and after an empty section.
709: */
710:
711: do {
712: n = n->prev;
1.162 schwarze 713: } while (n != NULL && n->tok >= MAN_TH &&
1.167 schwarze 714: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.163 schwarze 715: if (n == NULL || n->type == ROFFT_COMMENT ||
716: (n->tok == MAN_SH && n->body->child == NULL))
1.29 schwarze 717: break;
1.111 schwarze 718:
1.88 schwarze 719: for (i = 0; i < mt->pardist; i++)
720: term_vspace(p);
1.11 schwarze 721: break;
1.124 schwarze 722: case ROFFT_HEAD:
1.21 schwarze 723: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 724: p->tcol->offset = 0;
725: p->tcol->rmargin = mt->offset;
1.129 schwarze 726: p->trailspace = mt->offset;
727: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 728: break;
1.124 schwarze 729: case ROFFT_BODY:
1.156 schwarze 730: p->tcol->offset = mt->offset;
731: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 732: p->trailspace = 0;
733: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 734: break;
735: default:
1.180 schwarze 736: abort();
1.11 schwarze 737: }
1.138 schwarze 738: return 1;
1.1 kristaps 739: }
740:
741: static void
742: post_SH(DECL_ARGS)
743: {
1.11 schwarze 744: switch (n->type) {
1.180 schwarze 745: case ROFFT_BLOCK:
746: break;
1.124 schwarze 747: case ROFFT_HEAD:
748: case ROFFT_BODY:
1.11 schwarze 749: term_newln(p);
750: break;
751: default:
1.180 schwarze 752: abort();
1.13 schwarze 753: }
754: }
755:
756: static int
757: pre_RS(DECL_ARGS)
758: {
1.116 schwarze 759: struct roffsu su;
1.13 schwarze 760:
761: switch (n->type) {
1.124 schwarze 762: case ROFFT_BLOCK:
1.13 schwarze 763: term_newln(p);
1.138 schwarze 764: return 1;
1.124 schwarze 765: case ROFFT_HEAD:
1.138 schwarze 766: return 0;
1.180 schwarze 767: case ROFFT_BODY:
768: break;
1.13 schwarze 769: default:
1.180 schwarze 770: abort();
1.13 schwarze 771: }
772:
1.118 schwarze 773: n = n->parent->head;
774: n->aux = SHRT_MAX + 1;
1.130 schwarze 775: if (n->child == NULL)
776: n->aux = mt->lmargin[mt->lmargincur];
1.157 schwarze 777: else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
1.158 schwarze 778: n->aux = term_hen(p, &su);
1.118 schwarze 779: if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
780: n->aux = -mt->offset;
781: else if (n->aux > SHRT_MAX)
782: n->aux = term_len(p, p->defindent);
1.13 schwarze 783:
1.118 schwarze 784: mt->offset += n->aux;
1.156 schwarze 785: p->tcol->offset = mt->offset;
786: p->tcol->rmargin = p->maxrmargin;
1.13 schwarze 787:
1.70 schwarze 788: if (++mt->lmarginsz < MAXMARGINS)
789: mt->lmargincur = mt->lmarginsz;
790:
1.131 schwarze 791: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.138 schwarze 792: return 1;
1.13 schwarze 793: }
794:
795: static void
796: post_RS(DECL_ARGS)
797: {
798: switch (n->type) {
1.124 schwarze 799: case ROFFT_BLOCK:
800: case ROFFT_HEAD:
1.69 schwarze 801: return;
1.180 schwarze 802: case ROFFT_BODY:
803: break;
1.13 schwarze 804: default:
1.180 schwarze 805: abort();
1.11 schwarze 806: }
1.180 schwarze 807: term_newln(p);
1.118 schwarze 808: mt->offset -= n->parent->head->aux;
1.156 schwarze 809: p->tcol->offset = mt->offset;
1.70 schwarze 810: if (--mt->lmarginsz < MAXMARGINS)
811: mt->lmargincur = mt->lmarginsz;
1.168 schwarze 812: }
813:
814: static int
815: pre_SY(DECL_ARGS)
816: {
817: const struct roff_node *nn;
818: int len;
819:
820: switch (n->type) {
821: case ROFFT_BLOCK:
1.170 schwarze 822: if (n->prev == NULL || n->prev->tok != MAN_SY)
823: print_bvspace(p, n, mt->pardist);
1.168 schwarze 824: return 1;
825: case ROFFT_HEAD:
826: case ROFFT_BODY:
827: break;
828: default:
829: abort();
830: }
831:
832: nn = n->parent->head->child;
1.172 schwarze 833: len = nn == NULL ? 1 : term_strlen(p, nn->string) + 1;
1.168 schwarze 834:
835: switch (n->type) {
836: case ROFFT_HEAD:
837: p->tcol->offset = mt->offset;
838: p->tcol->rmargin = mt->offset + len;
1.181 schwarze 839: if (n->next->child == NULL ||
840: (n->next->child->flags & NODE_NOFILL) == 0)
841: p->flags |= TERMP_NOBREAK;
1.168 schwarze 842: term_fontrepl(p, TERMFONT_BOLD);
843: break;
844: case ROFFT_BODY:
845: mt->lmargin[mt->lmargincur] = len;
846: p->tcol->offset = mt->offset + len;
847: p->tcol->rmargin = p->maxrmargin;
848: p->flags |= TERMP_NOSPACE;
849: break;
850: default:
851: abort();
852: }
853: return 1;
854: }
855:
856: static void
857: post_SY(DECL_ARGS)
858: {
859: switch (n->type) {
1.180 schwarze 860: case ROFFT_BLOCK:
861: break;
1.168 schwarze 862: case ROFFT_HEAD:
863: term_flushln(p);
864: p->flags &= ~TERMP_NOBREAK;
865: break;
866: case ROFFT_BODY:
867: term_newln(p);
868: p->tcol->offset = mt->offset;
869: break;
870: default:
1.180 schwarze 871: abort();
1.168 schwarze 872: }
1.91 schwarze 873: }
874:
875: static int
876: pre_UR(DECL_ARGS)
877: {
1.138 schwarze 878: return n->type != ROFFT_HEAD;
1.91 schwarze 879: }
880:
881: static void
882: post_UR(DECL_ARGS)
883: {
1.124 schwarze 884: if (n->type != ROFFT_BLOCK)
1.91 schwarze 885: return;
886:
887: term_word(p, "<");
888: p->flags |= TERMP_NOSPACE;
889:
1.180 schwarze 890: if (n->child->child != NULL)
1.91 schwarze 891: print_man_node(p, mt, n->child->child, meta);
892:
893: p->flags |= TERMP_NOSPACE;
894: term_word(p, ">");
1.47 schwarze 895: }
896:
1.1 kristaps 897: static void
1.19 schwarze 898: print_man_node(DECL_ARGS)
1.1 kristaps 899: {
1.167 schwarze 900: const struct man_term_act *act;
901: int c;
1.1 kristaps 902:
903: switch (n->type) {
1.124 schwarze 904: case ROFFT_TEXT:
1.61 schwarze 905: /*
906: * If we have a blank line, output a vertical space.
907: * If we have a space as the first character, break
908: * before printing the line's data.
909: */
1.153 schwarze 910: if (*n->string == '\0') {
1.160 schwarze 911: if (p->flags & TERMP_NONEWLINE)
912: term_newln(p);
913: else
914: term_vspace(p);
1.61 schwarze 915: return;
1.153 schwarze 916: } else if (*n->string == ' ' && n->flags & NODE_LINE &&
917: (p->flags & TERMP_NONEWLINE) == 0)
1.60 schwarze 918: term_newln(p);
1.165 schwarze 919: else if (n->flags & NODE_DELIMC)
920: p->flags |= TERMP_NOSPACE;
1.21 schwarze 921:
1.1 kristaps 922: term_word(p, n->string);
1.84 schwarze 923: goto out;
1.163 schwarze 924: case ROFFT_COMMENT:
925: return;
1.124 schwarze 926: case ROFFT_EQN:
1.141 schwarze 927: if ( ! (n->flags & NODE_LINE))
1.105 schwarze 928: p->flags |= TERMP_NOSPACE;
1.71 schwarze 929: term_eqn(p, n->eqn);
1.141 schwarze 930: if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.106 schwarze 931: p->flags |= TERMP_NOSPACE;
1.61 schwarze 932: return;
1.124 schwarze 933: case ROFFT_TBL:
1.122 schwarze 934: if (p->tbl.cols == NULL)
935: term_vspace(p);
1.58 schwarze 936: term_tbl(p, n->span);
1.61 schwarze 937: return;
1.1 kristaps 938: default:
939: break;
940: }
1.177 schwarze 941:
1.146 schwarze 942: if (n->tok < ROFF_MAX) {
1.147 schwarze 943: roff_term_pre(p, n);
1.146 schwarze 944: return;
945: }
946:
1.167 schwarze 947: act = man_term_act(n->tok);
1.173 schwarze 948: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 949: term_fontrepl(p, TERMFONT_NONE);
950:
951: c = 1;
1.167 schwarze 952: if (act->pre != NULL)
953: c = (*act->pre)(p, mt, n, meta);
1.61 schwarze 954:
1.180 schwarze 955: if (c && n->child != NULL)
1.89 schwarze 956: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 957:
1.167 schwarze 958: if (act->post != NULL)
959: (*act->post)(p, mt, n, meta);
1.173 schwarze 960: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 961: term_fontrepl(p, TERMFONT_NONE);
1.30 schwarze 962:
1.84 schwarze 963: out:
964: /*
965: * If we're in a literal context, make sure that words
966: * together on the same line stay together. This is a
967: * POST-printing call, so we check the NEXT word. Since
968: * -man doesn't have nested macros, we don't need to be
969: * more specific than this.
970: */
1.178 schwarze 971: if (n->flags & NODE_NOFILL &&
1.110 schwarze 972: ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&
1.141 schwarze 973: (n->next == NULL || n->next->flags & NODE_LINE)) {
1.155 schwarze 974: p->flags |= TERMP_BRNEVER | TERMP_NOSPACE;
1.110 schwarze 975: if (n->string != NULL && *n->string != '\0')
1.84 schwarze 976: term_flushln(p);
977: else
978: term_newln(p);
1.155 schwarze 979: p->flags &= ~TERMP_BRNEVER;
1.156 schwarze 980: if (p->tcol->rmargin < p->maxrmargin &&
981: n->parent->tok == MAN_HP) {
982: p->tcol->offset = p->tcol->rmargin;
983: p->tcol->rmargin = p->maxrmargin;
1.155 schwarze 984: }
1.84 schwarze 985: }
1.180 schwarze 986: if (n->flags & NODE_EOS)
1.30 schwarze 987: p->flags |= TERMP_SENTENCE;
1.1 kristaps 988: }
989:
990: static void
1.21 schwarze 991: print_man_nodelist(DECL_ARGS)
1.1 kristaps 992: {
1.121 schwarze 993: while (n != NULL) {
994: print_man_node(p, mt, n, meta);
995: n = n->next;
996: }
1.1 kristaps 997: }
998:
999: static void
1.126 schwarze 1000: print_man_foot(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1001: {
1.101 schwarze 1002: char *title;
1.109 schwarze 1003: size_t datelen, titlen;
1.41 schwarze 1004:
1.80 schwarze 1005: assert(meta->title);
1006: assert(meta->msec);
1007: assert(meta->date);
1.21 schwarze 1008:
1009: term_fontrepl(p, TERMFONT_NONE);
1.1 kristaps 1010:
1.103 schwarze 1011: if (meta->hasbody)
1012: term_vspace(p);
1.81 schwarze 1013:
1014: /*
1015: * Temporary, undocumented option to imitate mdoc(7) output.
1.126 schwarze 1016: * In the bottom right corner, use the operating system
1017: * instead of the title.
1.81 schwarze 1018: */
1019:
1.79 schwarze 1020: if ( ! p->mdocstyle) {
1.103 schwarze 1021: if (meta->hasbody) {
1022: term_vspace(p);
1023: term_vspace(p);
1024: }
1.101 schwarze 1025: mandoc_asprintf(&title, "%s(%s)",
1026: meta->title, meta->msec);
1.180 schwarze 1027: } else if (meta->os != NULL) {
1.126 schwarze 1028: title = mandoc_strdup(meta->os);
1.79 schwarze 1029: } else {
1.101 schwarze 1030: title = mandoc_strdup("");
1.79 schwarze 1031: }
1.78 schwarze 1032: datelen = term_strlen(p, meta->date);
1.1 kristaps 1033:
1.126 schwarze 1034: /* Bottom left corner: operating system. */
1.81 schwarze 1035:
1.1 kristaps 1036: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.93 schwarze 1037: p->trailspace = 1;
1.156 schwarze 1038: p->tcol->offset = 0;
1039: p->tcol->rmargin = p->maxrmargin > datelen ?
1.109 schwarze 1040: (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
1.1 kristaps 1041:
1.126 schwarze 1042: if (meta->os)
1043: term_word(p, meta->os);
1.1 kristaps 1044: term_flushln(p);
1045:
1.81 schwarze 1046: /* At the bottom in the middle: manual date. */
1047:
1.156 schwarze 1048: p->tcol->offset = p->tcol->rmargin;
1.109 schwarze 1049: titlen = term_strlen(p, title);
1.156 schwarze 1050: p->tcol->rmargin = p->maxrmargin > titlen ?
1051: p->maxrmargin - titlen : 0;
1.72 schwarze 1052: p->flags |= TERMP_NOSPACE;
1.78 schwarze 1053:
1054: term_word(p, meta->date);
1055: term_flushln(p);
1056:
1.81 schwarze 1057: /* Bottom right corner: manual title and section. */
1058:
1.78 schwarze 1059: p->flags &= ~TERMP_NOBREAK;
1060: p->flags |= TERMP_NOSPACE;
1.93 schwarze 1061: p->trailspace = 0;
1.156 schwarze 1062: p->tcol->offset = p->tcol->rmargin;
1063: p->tcol->rmargin = p->maxrmargin;
1.1 kristaps 1064:
1.78 schwarze 1065: term_word(p, title);
1.1 kristaps 1066: term_flushln(p);
1.164 schwarze 1067:
1068: /*
1069: * Reset the terminal state for more output after the footer:
1070: * Some output modes, in particular PostScript and PDF, print
1071: * the header and the footer into a buffer such that it can be
1072: * reused for multiple output pages, then go on to format the
1073: * main text.
1074: */
1075:
1076: p->tcol->offset = 0;
1077: p->flags = 0;
1078:
1.101 schwarze 1079: free(title);
1.1 kristaps 1080: }
1081:
1082: static void
1.126 schwarze 1083: print_man_head(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1084: {
1.102 schwarze 1085: const char *volume;
1.101 schwarze 1086: char *title;
1.102 schwarze 1087: size_t vollen, titlen;
1.41 schwarze 1088:
1.89 schwarze 1089: assert(meta->title);
1090: assert(meta->msec);
1.1 kristaps 1091:
1.102 schwarze 1092: volume = NULL == meta->vol ? "" : meta->vol;
1093: vollen = term_strlen(p, volume);
1.1 kristaps 1094:
1.81 schwarze 1095: /* Top left corner: manual title and section. */
1096:
1.101 schwarze 1097: mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.42 schwarze 1098: titlen = term_strlen(p, title);
1.1 kristaps 1099:
1.73 schwarze 1100: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.93 schwarze 1101: p->trailspace = 1;
1.156 schwarze 1102: p->tcol->offset = 0;
1103: p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
1.102 schwarze 1104: (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.109 schwarze 1105: vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
1.1 kristaps 1106:
1107: term_word(p, title);
1108: term_flushln(p);
1109:
1.81 schwarze 1110: /* At the top in the middle: manual volume. */
1111:
1.72 schwarze 1112: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1113: p->tcol->offset = p->tcol->rmargin;
1114: p->tcol->rmargin = p->tcol->offset + vollen + titlen <
1115: p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1116:
1.102 schwarze 1117: term_word(p, volume);
1.1 kristaps 1118: term_flushln(p);
1119:
1.81 schwarze 1120: /* Top right corner: title and section, again. */
1121:
1.1 kristaps 1122: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 1123: p->trailspace = 0;
1.156 schwarze 1124: if (p->tcol->rmargin + titlen <= p->maxrmargin) {
1.72 schwarze 1125: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1126: p->tcol->offset = p->tcol->rmargin;
1127: p->tcol->rmargin = p->maxrmargin;
1.25 schwarze 1128: term_word(p, title);
1129: term_flushln(p);
1130: }
1.1 kristaps 1131:
1.73 schwarze 1132: p->flags &= ~TERMP_NOSPACE;
1.156 schwarze 1133: p->tcol->offset = 0;
1134: p->tcol->rmargin = p->maxrmargin;
1.29 schwarze 1135:
1.100 schwarze 1136: /*
1.81 schwarze 1137: * Groff prints three blank lines before the content.
1138: * Do the same, except in the temporary, undocumented
1139: * mode imitating mdoc(7) output.
1.29 schwarze 1140: */
1141:
1142: term_vspace(p);
1.79 schwarze 1143: if ( ! p->mdocstyle) {
1144: term_vspace(p);
1145: term_vspace(p);
1146: }
1.101 schwarze 1147: free(title);
1.1 kristaps 1148: }
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