Annotation of mandoc/man_term.c, Revision 1.228
1.228 ! schwarze 1: /* $Id: man_term.c,v 1.227 2019/01/05 01:29:32 schwarze Exp $ */
1.1 kristaps 2: /*
1.128 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.226 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
1.8 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: *
1.171 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.171 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8 kristaps 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: #include "config.h"
19:
1.28 kristaps 20: #include <sys/types.h>
21:
1.1 kristaps 22: #include <assert.h>
1.18 kristaps 23: #include <ctype.h>
1.164 schwarze 24: #include <limits.h>
1.1 kristaps 25: #include <stdio.h>
26: #include <stdlib.h>
27: #include <string.h>
28:
1.171 schwarze 29: #include "mandoc_aux.h"
30: #include "roff.h"
31: #include "man.h"
1.40 kristaps 32: #include "out.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 {
1.163 schwarze 39: int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */
1.116 schwarze 40: int lmargincur; /* index of current margin */
41: int lmarginsz; /* actual number of nested margins */
42: size_t offset; /* default offset to visible page */
1.134 schwarze 43: int pardist; /* vert. space before par., unit: [v] */
1.24 kristaps 44: };
1.19 kristaps 45:
1.146 schwarze 46: #define DECL_ARGS struct termp *p, \
1.24 kristaps 47: struct mtermp *mt, \
1.172 schwarze 48: struct roff_node *n, \
1.173 schwarze 49: const struct roff_meta *meta
1.1 kristaps 50:
1.214 schwarze 51: struct man_term_act {
1.1 kristaps 52: int (*pre)(DECL_ARGS);
53: void (*post)(DECL_ARGS);
1.56 kristaps 54: int flags;
55: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 56: };
57:
1.52 kristaps 58: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 59: static void print_man_node(DECL_ARGS);
1.173 schwarze 60: static void print_man_head(struct termp *,
61: const struct roff_meta *);
62: static void print_man_foot(struct termp *,
63: const struct roff_meta *);
1.146 schwarze 64: static void print_bvspace(struct termp *,
1.172 schwarze 65: const struct roff_node *, int);
1.39 kristaps 66:
1.1 kristaps 67: static int pre_B(DECL_ARGS);
1.199 schwarze 68: static int pre_DT(DECL_ARGS);
1.19 kristaps 69: static int pre_HP(DECL_ARGS);
1.1 kristaps 70: static int pre_I(DECL_ARGS);
1.4 kristaps 71: static int pre_IP(DECL_ARGS);
1.127 kristaps 72: static int pre_OP(DECL_ARGS);
1.134 schwarze 73: static int pre_PD(DECL_ARGS);
1.1 kristaps 74: static int pre_PP(DECL_ARGS);
1.26 kristaps 75: static int pre_RS(DECL_ARGS);
1.1 kristaps 76: static int pre_SH(DECL_ARGS);
77: static int pre_SS(DECL_ARGS);
1.215 schwarze 78: static int pre_SY(DECL_ARGS);
1.1 kristaps 79: static int pre_TP(DECL_ARGS);
1.137 schwarze 80: static int pre_UR(DECL_ARGS);
1.221 schwarze 81: static int pre_abort(DECL_ARGS);
1.127 kristaps 82: static int pre_alternate(DECL_ARGS);
1.29 kristaps 83: static int pre_ign(DECL_ARGS);
1.83 kristaps 84: static int pre_in(DECL_ARGS);
1.84 kristaps 85: static int pre_literal(DECL_ARGS);
1.1 kristaps 86:
1.22 kristaps 87: static void post_IP(DECL_ARGS);
1.20 kristaps 88: static void post_HP(DECL_ARGS);
1.26 kristaps 89: static void post_RS(DECL_ARGS);
1.1 kristaps 90: static void post_SH(DECL_ARGS);
1.215 schwarze 91: static void post_SY(DECL_ARGS);
1.21 kristaps 92: static void post_TP(DECL_ARGS);
1.137 schwarze 93: static void post_UR(DECL_ARGS);
1.1 kristaps 94:
1.214 schwarze 95: static const struct man_term_act man_term_acts[MAN_MAX - MAN_TH] = {
1.56 kristaps 96: { NULL, NULL, 0 }, /* TH */
97: { pre_SH, post_SH, 0 }, /* SH */
1.227 schwarze 98: { pre_SS, post_SH, 0 }, /* SS */
1.56 kristaps 99: { pre_TP, post_TP, 0 }, /* TP */
1.213 schwarze 100: { pre_TP, post_TP, 0 }, /* TQ */
1.221 schwarze 101: { pre_abort, NULL, 0 }, /* LP */
1.56 kristaps 102: { pre_PP, NULL, 0 }, /* PP */
1.221 schwarze 103: { pre_abort, NULL, 0 }, /* P */
1.56 kristaps 104: { pre_IP, post_IP, 0 }, /* IP */
1.146 schwarze 105: { pre_HP, post_HP, 0 }, /* HP */
1.56 kristaps 106: { NULL, NULL, 0 }, /* SM */
107: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 108: { pre_alternate, NULL, 0 }, /* BI */
109: { pre_alternate, NULL, 0 }, /* IB */
110: { pre_alternate, NULL, 0 }, /* BR */
111: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 112: { NULL, NULL, 0 }, /* R */
113: { pre_B, NULL, 0 }, /* B */
114: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 115: { pre_alternate, NULL, 0 }, /* IR */
116: { pre_alternate, NULL, 0 }, /* RI */
1.56 kristaps 117: { NULL, NULL, 0 }, /* RE */
118: { pre_RS, post_RS, 0 }, /* RS */
1.199 schwarze 119: { pre_DT, NULL, 0 }, /* DT */
1.158 schwarze 120: { pre_ign, NULL, MAN_NOTEXT }, /* UC */
1.134 schwarze 121: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.70 joerg 122: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 123: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.215 schwarze 124: { pre_SY, post_SY, 0 }, /* SY */
125: { NULL, NULL, 0 }, /* YS */
1.127 kristaps 126: { pre_OP, NULL, 0 }, /* OP */
1.129 schwarze 127: { pre_literal, NULL, 0 }, /* EX */
128: { pre_literal, NULL, 0 }, /* EE */
1.137 schwarze 129: { pre_UR, post_UR, 0 }, /* UR */
130: { NULL, NULL, 0 }, /* UE */
1.208 schwarze 131: { pre_UR, post_UR, 0 }, /* MT */
132: { NULL, NULL, 0 }, /* ME */
1.1 kristaps 133: };
1.214 schwarze 134: static const struct man_term_act *man_term_act(enum roff_tok);
1.1 kristaps 135:
136:
1.214 schwarze 137: static const struct man_term_act *
138: man_term_act(enum roff_tok tok)
139: {
140: assert(tok >= MAN_TH && tok <= MAN_MAX);
141: return man_term_acts + (tok - MAN_TH);
142: }
143:
1.31 kristaps 144: void
1.223 schwarze 145: terminal_man(void *arg, const struct roff_meta *man)
1.1 kristaps 146: {
1.227 schwarze 147: struct mtermp mt;
1.36 kristaps 148: struct termp *p;
1.172 schwarze 149: struct roff_node *n;
1.189 schwarze 150: size_t save_defindent;
1.36 kristaps 151:
152: p = (struct termp *)arg;
1.206 schwarze 153: save_defindent = p->defindent;
154: if (p->synopsisonly == 0 && p->defindent == 0)
155: p->defindent = 7;
1.203 schwarze 156: p->tcol->rmargin = p->maxrmargin = p->defrmargin;
1.198 schwarze 157: term_tab_set(p, NULL);
158: term_tab_set(p, "T");
159: term_tab_set(p, ".5i");
1.36 kristaps 160:
1.227 schwarze 161: memset(&mt, 0, sizeof(mt));
1.122 schwarze 162: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
163: mt.offset = term_len(p, p->defindent);
1.134 schwarze 164: mt.pardist = 1;
1.24 kristaps 165:
1.181 schwarze 166: n = man->first->child;
1.151 schwarze 167: if (p->synopsisonly) {
168: while (n != NULL) {
169: if (n->tok == MAN_SH &&
1.171 schwarze 170: n->child->child->type == ROFFT_TEXT &&
1.151 schwarze 171: !strcmp(n->child->child->string, "SYNOPSIS")) {
172: if (n->child->next->child != NULL)
173: print_man_nodelist(p, &mt,
1.223 schwarze 174: n->child->next->child, man);
1.151 schwarze 175: term_newln(p);
176: break;
177: }
178: n = n->next;
179: }
180: } else {
1.223 schwarze 181: term_begin(p, print_man_head, print_man_foot, man);
1.151 schwarze 182: p->flags |= TERMP_NOSPACE;
183: if (n != NULL)
1.223 schwarze 184: print_man_nodelist(p, &mt, n, man);
1.151 schwarze 185: term_end(p);
186: }
1.206 schwarze 187: p->defindent = save_defindent;
1.1 kristaps 188: }
189:
1.111 kristaps 190: /*
191: * Printing leading vertical space before a block.
192: * This is used for the paragraph macros.
193: * The rules are pretty simple, since there's very little nesting going
194: * on here. Basically, if we're the first within another block (SS/SH),
195: * then don't emit vertical space. If we are (RS), then do. If not the
196: * first, print it.
197: */
1.39 kristaps 198: static void
1.172 schwarze 199: print_bvspace(struct termp *p, const struct roff_node *n, int pardist)
1.18 kristaps 200: {
1.134 schwarze 201: int i;
1.111 kristaps 202:
1.39 kristaps 203: term_newln(p);
1.101 schwarze 204:
1.227 schwarze 205: if (n->body != NULL && n->body->child != NULL)
1.171 schwarze 206: if (n->body->child->type == ROFFT_TBL)
1.111 kristaps 207: return;
208:
1.171 schwarze 209: if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)
1.227 schwarze 210: if (n->prev == NULL)
1.111 kristaps 211: return;
1.18 kristaps 212:
1.134 schwarze 213: for (i = 0; i < pardist; i++)
214: term_vspace(p);
1.18 kristaps 215: }
216:
1.221 schwarze 217:
218: static int
219: pre_abort(DECL_ARGS)
220: {
221: abort();
222: }
1.146 schwarze 223:
1.1 kristaps 224: static int
1.29 kristaps 225: pre_ign(DECL_ARGS)
226: {
1.185 schwarze 227: return 0;
1.29 kristaps 228: }
229:
230: static int
1.1 kristaps 231: pre_I(DECL_ARGS)
232: {
1.52 kristaps 233: term_fontrepl(p, TERMFONT_UNDER);
1.185 schwarze 234: return 1;
1.19 kristaps 235: }
236:
1.3 kristaps 237: static int
1.84 kristaps 238: pre_literal(DECL_ARGS)
1.19 kristaps 239: {
1.81 kristaps 240: term_newln(p);
1.88 kristaps 241:
1.117 schwarze 242: /*
243: * Unlike .IP and .TP, .HP does not have a HEAD.
244: * So in case a second call to term_flushln() is needed,
245: * indentation has to be set up explicitly.
246: */
1.203 schwarze 247: if (n->parent->tok == MAN_HP && p->tcol->rmargin < p->maxrmargin) {
248: p->tcol->offset = p->tcol->rmargin;
249: p->tcol->rmargin = p->maxrmargin;
1.139 schwarze 250: p->trailspace = 0;
1.145 schwarze 251: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.117 schwarze 252: p->flags |= TERMP_NOSPACE;
253: }
1.185 schwarze 254: return 0;
1.19 kristaps 255: }
256:
257: static int
1.134 schwarze 258: pre_PD(DECL_ARGS)
259: {
1.160 schwarze 260: struct roffsu su;
1.134 schwarze 261:
262: n = n->child;
1.160 schwarze 263: if (n == NULL) {
1.134 schwarze 264: mt->pardist = 1;
1.185 schwarze 265: return 0;
1.134 schwarze 266: }
1.171 schwarze 267: assert(n->type == ROFFT_TEXT);
1.204 schwarze 268: if (a2roffsu(n->string, &su, SCALE_VS) != NULL)
1.160 schwarze 269: mt->pardist = term_vspan(p, &su);
1.185 schwarze 270: return 0;
1.134 schwarze 271: }
272:
273: static int
1.88 kristaps 274: pre_alternate(DECL_ARGS)
1.3 kristaps 275: {
1.88 kristaps 276: enum termfont font[2];
1.172 schwarze 277: struct roff_node *nn;
1.225 schwarze 278: int i;
1.3 kristaps 279:
1.88 kristaps 280: switch (n->tok) {
1.146 schwarze 281: case MAN_RB:
1.88 kristaps 282: font[0] = TERMFONT_NONE;
283: font[1] = TERMFONT_BOLD;
284: break;
1.146 schwarze 285: case MAN_RI:
1.88 kristaps 286: font[0] = TERMFONT_NONE;
287: font[1] = TERMFONT_UNDER;
288: break;
1.146 schwarze 289: case MAN_BR:
1.88 kristaps 290: font[0] = TERMFONT_BOLD;
291: font[1] = TERMFONT_NONE;
292: break;
1.146 schwarze 293: case MAN_BI:
1.88 kristaps 294: font[0] = TERMFONT_BOLD;
295: font[1] = TERMFONT_UNDER;
296: break;
1.146 schwarze 297: case MAN_IR:
1.88 kristaps 298: font[0] = TERMFONT_UNDER;
299: font[1] = TERMFONT_NONE;
300: break;
1.146 schwarze 301: case MAN_IB:
1.88 kristaps 302: font[0] = TERMFONT_UNDER;
303: font[1] = TERMFONT_BOLD;
304: break;
305: default:
306: abort();
307: }
1.225 schwarze 308: for (i = 0, nn = n->child; nn != NULL; nn = nn->next, i = 1 - i) {
1.88 kristaps 309: term_fontrepl(p, font[i]);
1.179 schwarze 310: assert(nn->type == ROFFT_TEXT);
311: term_word(p, nn->string);
1.188 schwarze 312: if (nn->flags & NODE_EOS)
1.179 schwarze 313: p->flags |= TERMP_SENTENCE;
1.227 schwarze 314: if (nn->next != NULL)
1.4 kristaps 315: p->flags |= TERMP_NOSPACE;
1.3 kristaps 316: }
1.185 schwarze 317: return 0;
1.3 kristaps 318: }
319:
1.1 kristaps 320: static int
321: pre_B(DECL_ARGS)
322: {
1.52 kristaps 323: term_fontrepl(p, TERMFONT_BOLD);
1.185 schwarze 324: return 1;
1.127 kristaps 325: }
326:
327: static int
328: pre_OP(DECL_ARGS)
329: {
330: term_word(p, "[");
1.216 schwarze 331: p->flags |= TERMP_KEEP | TERMP_NOSPACE;
1.127 kristaps 332:
1.227 schwarze 333: if ((n = n->child) != NULL) {
1.127 kristaps 334: term_fontrepl(p, TERMFONT_BOLD);
335: term_word(p, n->string);
336: }
1.227 schwarze 337: if (n != NULL && n->next != NULL) {
1.127 kristaps 338: term_fontrepl(p, TERMFONT_UNDER);
339: term_word(p, n->next->string);
340: }
341: term_fontrepl(p, TERMFONT_NONE);
1.216 schwarze 342: p->flags &= ~TERMP_KEEP;
1.127 kristaps 343: p->flags |= TERMP_NOSPACE;
344: term_word(p, "]");
1.185 schwarze 345: return 0;
1.83 kristaps 346: }
347:
348: static int
349: pre_in(DECL_ARGS)
350: {
1.163 schwarze 351: struct roffsu su;
352: const char *cp;
1.83 kristaps 353: size_t v;
1.163 schwarze 354: int less;
1.83 kristaps 355:
356: term_newln(p);
357:
1.203 schwarze 358: if (n->child == NULL) {
359: p->tcol->offset = mt->offset;
1.185 schwarze 360: return 0;
1.83 kristaps 361: }
362:
363: cp = n->child->string;
364: less = 0;
365:
1.227 schwarze 366: if (*cp == '-')
1.83 kristaps 367: less = -1;
1.227 schwarze 368: else if (*cp == '+')
1.83 kristaps 369: less = 1;
370: else
371: cp--;
372:
1.204 schwarze 373: if (a2roffsu(++cp, &su, SCALE_EN) == NULL)
1.185 schwarze 374: return 0;
1.83 kristaps 375:
1.205 schwarze 376: v = term_hen(p, &su);
1.83 kristaps 377:
378: if (less < 0)
1.203 schwarze 379: p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset;
1.83 kristaps 380: else if (less > 0)
1.203 schwarze 381: p->tcol->offset += v;
1.146 schwarze 382: else
1.203 schwarze 383: p->tcol->offset = v;
384: if (p->tcol->offset > SHRT_MAX)
385: p->tcol->offset = term_len(p, p->defindent);
1.19 kristaps 386:
1.199 schwarze 387: return 0;
388: }
389:
390: static int
391: pre_DT(DECL_ARGS)
392: {
393: term_tab_set(p, NULL);
394: term_tab_set(p, "T");
395: term_tab_set(p, ".5i");
1.185 schwarze 396: return 0;
1.15 kristaps 397: }
398:
399: static int
1.19 kristaps 400: pre_HP(DECL_ARGS)
401: {
1.163 schwarze 402: struct roffsu su;
1.172 schwarze 403: const struct roff_node *nn;
1.163 schwarze 404: int len;
1.19 kristaps 405:
1.20 kristaps 406: switch (n->type) {
1.171 schwarze 407: case ROFFT_BLOCK:
1.134 schwarze 408: print_bvspace(p, n, mt->pardist);
1.185 schwarze 409: return 1;
1.227 schwarze 410: case ROFFT_HEAD:
411: return 0;
1.171 schwarze 412: case ROFFT_BODY:
1.20 kristaps 413: break;
414: default:
1.227 schwarze 415: abort();
1.20 kristaps 416: }
417:
1.226 schwarze 418: if (n->child == NULL)
419: return 0;
420:
421: if ((n->child->flags & NODE_NOFILL) == 0) {
1.145 schwarze 422: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.139 schwarze 423: p->trailspace = 2;
1.130 schwarze 424: }
425:
1.24 kristaps 426: /* Calculate offset. */
427:
1.163 schwarze 428: if ((nn = n->parent->head->child) != NULL &&
1.204 schwarze 429: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.205 schwarze 430: len = term_hen(p, &su);
1.164 schwarze 431: if (len < 0 && (size_t)(-len) > mt->offset)
432: len = -mt->offset;
433: else if (len > SHRT_MAX)
434: len = term_len(p, p->defindent);
1.163 schwarze 435: mt->lmargin[mt->lmargincur] = len;
436: } else
437: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 438:
1.203 schwarze 439: p->tcol->offset = mt->offset;
440: p->tcol->rmargin = mt->offset + len;
1.185 schwarze 441: return 1;
1.19 kristaps 442: }
443:
1.20 kristaps 444: static void
445: post_HP(DECL_ARGS)
446: {
447: switch (n->type) {
1.227 schwarze 448: case ROFFT_BLOCK:
449: case ROFFT_HEAD:
450: break;
1.171 schwarze 451: case ROFFT_BODY:
1.136 schwarze 452: term_newln(p);
1.174 schwarze 453:
454: /*
455: * Compatibility with a groff bug.
456: * The .HP macro uses the undocumented .tag request
457: * which causes a line break and cancels no-space
458: * mode even if there isn't any output.
459: */
460:
461: if (n->child == NULL)
462: term_vspace(p);
463:
1.145 schwarze 464: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.139 schwarze 465: p->trailspace = 0;
1.203 schwarze 466: p->tcol->offset = mt->offset;
467: p->tcol->rmargin = p->maxrmargin;
1.20 kristaps 468: break;
469: default:
1.227 schwarze 470: abort();
1.20 kristaps 471: }
472: }
473:
1.19 kristaps 474: static int
1.1 kristaps 475: pre_PP(DECL_ARGS)
476: {
1.19 kristaps 477: switch (n->type) {
1.171 schwarze 478: case ROFFT_BLOCK:
1.122 schwarze 479: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.134 schwarze 480: print_bvspace(p, n, mt->pardist);
1.19 kristaps 481: break;
1.227 schwarze 482: case ROFFT_HEAD:
483: return 0;
484: case ROFFT_BODY:
1.203 schwarze 485: p->tcol->offset = mt->offset;
1.19 kristaps 486: break;
1.227 schwarze 487: default:
488: abort();
1.19 kristaps 489: }
1.227 schwarze 490: return 1;
1.1 kristaps 491: }
492:
493: static int
1.4 kristaps 494: pre_IP(DECL_ARGS)
495: {
1.163 schwarze 496: struct roffsu su;
1.172 schwarze 497: const struct roff_node *nn;
1.225 schwarze 498: int len;
1.18 kristaps 499:
1.22 kristaps 500: switch (n->type) {
1.227 schwarze 501: case ROFFT_BLOCK:
502: print_bvspace(p, n, mt->pardist);
503: return 1;
1.171 schwarze 504: case ROFFT_HEAD:
1.22 kristaps 505: p->flags |= TERMP_NOBREAK;
1.139 schwarze 506: p->trailspace = 1;
1.22 kristaps 507: break;
1.227 schwarze 508: case ROFFT_BODY:
509: p->flags |= TERMP_NOSPACE;
510: break;
1.22 kristaps 511: default:
1.227 schwarze 512: abort();
1.22 kristaps 513: }
1.18 kristaps 514:
1.94 schwarze 515: /* Calculate the offset from the optional second argument. */
1.163 schwarze 516: if ((nn = n->parent->head->child) != NULL &&
517: (nn = nn->next) != NULL &&
1.204 schwarze 518: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.205 schwarze 519: len = term_hen(p, &su);
1.163 schwarze 520: if (len < 0 && (size_t)(-len) > mt->offset)
521: len = -mt->offset;
1.164 schwarze 522: else if (len > SHRT_MAX)
523: len = term_len(p, p->defindent);
524: mt->lmargin[mt->lmargincur] = len;
1.163 schwarze 525: } else
526: len = mt->lmargin[mt->lmargincur];
1.4 kristaps 527:
1.22 kristaps 528: switch (n->type) {
1.171 schwarze 529: case ROFFT_HEAD:
1.203 schwarze 530: p->tcol->offset = mt->offset;
531: p->tcol->rmargin = mt->offset + len;
1.227 schwarze 532: if (n->child != NULL)
1.135 schwarze 533: print_man_node(p, mt, n->child, meta);
1.185 schwarze 534: return 0;
1.171 schwarze 535: case ROFFT_BODY:
1.203 schwarze 536: p->tcol->offset = mt->offset + len;
537: p->tcol->rmargin = p->maxrmargin;
1.23 kristaps 538: break;
1.22 kristaps 539: default:
1.227 schwarze 540: abort();
1.18 kristaps 541: }
1.185 schwarze 542: return 1;
1.22 kristaps 543: }
1.18 kristaps 544:
1.22 kristaps 545: static void
546: post_IP(DECL_ARGS)
547: {
548: switch (n->type) {
1.227 schwarze 549: case ROFFT_BLOCK:
550: break;
1.171 schwarze 551: case ROFFT_HEAD:
1.22 kristaps 552: term_flushln(p);
553: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 554: p->trailspace = 0;
1.203 schwarze 555: p->tcol->rmargin = p->maxrmargin;
1.22 kristaps 556: break;
1.171 schwarze 557: case ROFFT_BODY:
1.94 schwarze 558: term_newln(p);
1.203 schwarze 559: p->tcol->offset = mt->offset;
1.22 kristaps 560: break;
561: default:
1.227 schwarze 562: abort();
1.22 kristaps 563: }
1.4 kristaps 564: }
565:
566: static int
1.1 kristaps 567: pre_TP(DECL_ARGS)
568: {
1.163 schwarze 569: struct roffsu su;
1.172 schwarze 570: struct roff_node *nn;
1.225 schwarze 571: int len;
1.1 kristaps 572:
1.21 kristaps 573: switch (n->type) {
1.227 schwarze 574: case ROFFT_BLOCK:
575: if (n->tok == MAN_TP)
576: print_bvspace(p, n, mt->pardist);
577: return 1;
1.171 schwarze 578: case ROFFT_HEAD:
1.184 schwarze 579: p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
1.139 schwarze 580: p->trailspace = 1;
1.21 kristaps 581: break;
1.171 schwarze 582: case ROFFT_BODY:
1.21 kristaps 583: p->flags |= TERMP_NOSPACE;
1.23 kristaps 584: break;
585: default:
1.227 schwarze 586: abort();
1.23 kristaps 587: }
588:
589: /* Calculate offset. */
590:
1.163 schwarze 591: if ((nn = n->parent->head->child) != NULL &&
1.188 schwarze 592: nn->string != NULL && ! (NODE_LINE & nn->flags) &&
1.204 schwarze 593: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.205 schwarze 594: len = term_hen(p, &su);
1.163 schwarze 595: if (len < 0 && (size_t)(-len) > mt->offset)
596: len = -mt->offset;
1.164 schwarze 597: else if (len > SHRT_MAX)
598: len = term_len(p, p->defindent);
599: mt->lmargin[mt->lmargincur] = len;
1.163 schwarze 600: } else
601: len = mt->lmargin[mt->lmargincur];
1.23 kristaps 602:
603: switch (n->type) {
1.171 schwarze 604: case ROFFT_HEAD:
1.203 schwarze 605: p->tcol->offset = mt->offset;
606: p->tcol->rmargin = mt->offset + len;
1.23 kristaps 607:
608: /* Don't print same-line elements. */
1.141 schwarze 609: nn = n->child;
1.227 schwarze 610: while (nn != NULL && (nn->flags & NODE_LINE) == 0)
1.141 schwarze 611: nn = nn->next;
612:
1.227 schwarze 613: while (nn != NULL) {
1.141 schwarze 614: print_man_node(p, mt, nn, meta);
615: nn = nn->next;
616: }
1.185 schwarze 617: return 0;
1.171 schwarze 618: case ROFFT_BODY:
1.203 schwarze 619: p->tcol->offset = mt->offset + len;
620: p->tcol->rmargin = p->maxrmargin;
1.139 schwarze 621: p->trailspace = 0;
1.184 schwarze 622: p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
1.21 kristaps 623: break;
624: default:
1.227 schwarze 625: abort();
1.21 kristaps 626: }
1.185 schwarze 627: return 1;
1.21 kristaps 628: }
1.1 kristaps 629:
1.21 kristaps 630: static void
631: post_TP(DECL_ARGS)
632: {
633: switch (n->type) {
1.227 schwarze 634: case ROFFT_BLOCK:
635: break;
1.171 schwarze 636: case ROFFT_HEAD:
1.21 kristaps 637: term_flushln(p);
638: break;
1.171 schwarze 639: case ROFFT_BODY:
1.94 schwarze 640: term_newln(p);
1.203 schwarze 641: p->tcol->offset = mt->offset;
1.21 kristaps 642: break;
643: default:
1.227 schwarze 644: abort();
1.21 kristaps 645: }
1.1 kristaps 646: }
647:
648: static int
649: pre_SS(DECL_ARGS)
650: {
1.134 schwarze 651: int i;
1.1 kristaps 652:
1.19 kristaps 653: switch (n->type) {
1.171 schwarze 654: case ROFFT_BLOCK:
1.122 schwarze 655: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
656: mt->offset = term_len(p, p->defindent);
1.158 schwarze 657:
658: /*
659: * No vertical space before the first subsection
660: * and after an empty subsection.
661: */
662:
663: do {
664: n = n->prev;
1.209 schwarze 665: } while (n != NULL && n->tok >= MAN_TH &&
1.214 schwarze 666: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.210 schwarze 667: if (n == NULL || n->type == ROFFT_COMMENT ||
668: (n->tok == MAN_SS && n->body->child == NULL))
1.24 kristaps 669: break;
1.158 schwarze 670:
1.134 schwarze 671: for (i = 0; i < mt->pardist; i++)
672: term_vspace(p);
1.19 kristaps 673: break;
1.171 schwarze 674: case ROFFT_HEAD:
1.52 kristaps 675: term_fontrepl(p, TERMFONT_BOLD);
1.203 schwarze 676: p->tcol->offset = term_len(p, 3);
677: p->tcol->rmargin = mt->offset;
1.176 schwarze 678: p->trailspace = mt->offset;
679: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.19 kristaps 680: break;
1.171 schwarze 681: case ROFFT_BODY:
1.203 schwarze 682: p->tcol->offset = mt->offset;
683: p->tcol->rmargin = p->maxrmargin;
1.176 schwarze 684: p->trailspace = 0;
685: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.24 kristaps 686: break;
1.19 kristaps 687: default:
688: break;
689: }
1.185 schwarze 690: return 1;
1.1 kristaps 691: }
692:
693: static int
694: pre_SH(DECL_ARGS)
695: {
1.134 schwarze 696: int i;
1.22 kristaps 697:
1.19 kristaps 698: switch (n->type) {
1.171 schwarze 699: case ROFFT_BLOCK:
1.122 schwarze 700: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
701: mt->offset = term_len(p, p->defindent);
1.158 schwarze 702:
703: /*
704: * No vertical space before the first section
705: * and after an empty section.
706: */
707:
708: do {
709: n = n->prev;
1.209 schwarze 710: } while (n != NULL && n->tok >= MAN_TH &&
1.214 schwarze 711: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.210 schwarze 712: if (n == NULL || n->type == ROFFT_COMMENT ||
713: (n->tok == MAN_SH && n->body->child == NULL))
1.61 kristaps 714: break;
1.158 schwarze 715:
1.134 schwarze 716: for (i = 0; i < mt->pardist; i++)
717: term_vspace(p);
1.19 kristaps 718: break;
1.171 schwarze 719: case ROFFT_HEAD:
1.52 kristaps 720: term_fontrepl(p, TERMFONT_BOLD);
1.203 schwarze 721: p->tcol->offset = 0;
722: p->tcol->rmargin = mt->offset;
1.176 schwarze 723: p->trailspace = mt->offset;
724: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.19 kristaps 725: break;
1.171 schwarze 726: case ROFFT_BODY:
1.203 schwarze 727: p->tcol->offset = mt->offset;
728: p->tcol->rmargin = p->maxrmargin;
1.176 schwarze 729: p->trailspace = 0;
730: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.19 kristaps 731: break;
732: default:
1.227 schwarze 733: abort();
1.19 kristaps 734: }
1.185 schwarze 735: return 1;
1.1 kristaps 736: }
737:
738: static void
739: post_SH(DECL_ARGS)
740: {
1.19 kristaps 741: switch (n->type) {
1.227 schwarze 742: case ROFFT_BLOCK:
743: break;
1.171 schwarze 744: case ROFFT_HEAD:
745: case ROFFT_BODY:
1.19 kristaps 746: term_newln(p);
747: break;
748: default:
1.227 schwarze 749: abort();
1.19 kristaps 750: }
1.1 kristaps 751: }
752:
1.26 kristaps 753: static int
754: pre_RS(DECL_ARGS)
755: {
1.163 schwarze 756: struct roffsu su;
1.26 kristaps 757:
758: switch (n->type) {
1.171 schwarze 759: case ROFFT_BLOCK:
1.26 kristaps 760: term_newln(p);
1.185 schwarze 761: return 1;
1.171 schwarze 762: case ROFFT_HEAD:
1.185 schwarze 763: return 0;
1.227 schwarze 764: case ROFFT_BODY:
765: break;
1.26 kristaps 766: default:
1.227 schwarze 767: abort();
1.26 kristaps 768: }
769:
1.165 schwarze 770: n = n->parent->head;
771: n->aux = SHRT_MAX + 1;
1.177 schwarze 772: if (n->child == NULL)
773: n->aux = mt->lmargin[mt->lmargincur];
1.204 schwarze 774: else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
1.205 schwarze 775: n->aux = term_hen(p, &su);
1.165 schwarze 776: if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
777: n->aux = -mt->offset;
778: else if (n->aux > SHRT_MAX)
779: n->aux = term_len(p, p->defindent);
1.26 kristaps 780:
1.165 schwarze 781: mt->offset += n->aux;
1.203 schwarze 782: p->tcol->offset = mt->offset;
783: p->tcol->rmargin = p->maxrmargin;
1.26 kristaps 784:
1.116 schwarze 785: if (++mt->lmarginsz < MAXMARGINS)
786: mt->lmargincur = mt->lmarginsz;
787:
1.178 schwarze 788: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.185 schwarze 789: return 1;
1.26 kristaps 790: }
791:
792: static void
793: post_RS(DECL_ARGS)
794: {
795: switch (n->type) {
1.171 schwarze 796: case ROFFT_BLOCK:
797: case ROFFT_HEAD:
1.110 kristaps 798: return;
1.227 schwarze 799: case ROFFT_BODY:
800: break;
1.26 kristaps 801: default:
1.227 schwarze 802: abort();
1.26 kristaps 803: }
1.227 schwarze 804: term_newln(p);
1.165 schwarze 805: mt->offset -= n->parent->head->aux;
1.203 schwarze 806: p->tcol->offset = mt->offset;
1.116 schwarze 807: if (--mt->lmarginsz < MAXMARGINS)
808: mt->lmargincur = mt->lmarginsz;
1.215 schwarze 809: }
810:
811: static int
812: pre_SY(DECL_ARGS)
813: {
814: const struct roff_node *nn;
815: int len;
816:
817: switch (n->type) {
818: case ROFFT_BLOCK:
1.217 schwarze 819: if (n->prev == NULL || n->prev->tok != MAN_SY)
820: print_bvspace(p, n, mt->pardist);
1.215 schwarze 821: return 1;
822: case ROFFT_HEAD:
823: case ROFFT_BODY:
824: break;
825: default:
826: abort();
827: }
828:
829: nn = n->parent->head->child;
1.219 schwarze 830: len = nn == NULL ? 1 : term_strlen(p, nn->string) + 1;
1.215 schwarze 831:
832: switch (n->type) {
833: case ROFFT_HEAD:
834: p->tcol->offset = mt->offset;
835: p->tcol->rmargin = mt->offset + len;
1.228 ! schwarze 836: if (n->next->child == NULL ||
! 837: (n->next->child->flags & NODE_NOFILL) == 0)
! 838: p->flags |= TERMP_NOBREAK;
1.215 schwarze 839: term_fontrepl(p, TERMFONT_BOLD);
840: break;
841: case ROFFT_BODY:
842: mt->lmargin[mt->lmargincur] = len;
843: p->tcol->offset = mt->offset + len;
844: p->tcol->rmargin = p->maxrmargin;
845: p->flags |= TERMP_NOSPACE;
846: break;
847: default:
848: abort();
849: }
850: return 1;
851: }
852:
853: static void
854: post_SY(DECL_ARGS)
855: {
856: switch (n->type) {
1.227 schwarze 857: case ROFFT_BLOCK:
858: break;
1.215 schwarze 859: case ROFFT_HEAD:
860: term_flushln(p);
861: p->flags &= ~TERMP_NOBREAK;
862: break;
863: case ROFFT_BODY:
864: term_newln(p);
865: p->tcol->offset = mt->offset;
866: break;
867: default:
1.227 schwarze 868: abort();
1.215 schwarze 869: }
1.137 schwarze 870: }
871:
872: static int
873: pre_UR(DECL_ARGS)
874: {
1.185 schwarze 875: return n->type != ROFFT_HEAD;
1.137 schwarze 876: }
877:
878: static void
879: post_UR(DECL_ARGS)
880: {
1.171 schwarze 881: if (n->type != ROFFT_BLOCK)
1.137 schwarze 882: return;
883:
884: term_word(p, "<");
885: p->flags |= TERMP_NOSPACE;
886:
1.227 schwarze 887: if (n->child->child != NULL)
1.137 schwarze 888: print_man_node(p, mt, n->child->child, meta);
889:
890: p->flags |= TERMP_NOSPACE;
891: term_word(p, ">");
1.26 kristaps 892: }
893:
1.1 kristaps 894: static void
1.45 kristaps 895: print_man_node(DECL_ARGS)
1.1 kristaps 896: {
1.214 schwarze 897: const struct man_term_act *act;
898: int c;
1.1 kristaps 899:
900: switch (n->type) {
1.171 schwarze 901: case ROFFT_TEXT:
1.97 kristaps 902: /*
903: * If we have a blank line, output a vertical space.
904: * If we have a space as the first character, break
905: * before printing the line's data.
906: */
1.200 schwarze 907: if (*n->string == '\0') {
1.207 schwarze 908: if (p->flags & TERMP_NONEWLINE)
909: term_newln(p);
910: else
911: term_vspace(p);
1.98 schwarze 912: return;
1.200 schwarze 913: } else if (*n->string == ' ' && n->flags & NODE_LINE &&
914: (p->flags & TERMP_NONEWLINE) == 0)
1.96 kristaps 915: term_newln(p);
1.212 schwarze 916: else if (n->flags & NODE_DELIMC)
917: p->flags |= TERMP_NOSPACE;
1.54 kristaps 918:
1.4 kristaps 919: term_word(p, n->string);
1.130 schwarze 920: goto out;
1.210 schwarze 921: case ROFFT_COMMENT:
922: return;
1.171 schwarze 923: case ROFFT_EQN:
1.188 schwarze 924: if ( ! (n->flags & NODE_LINE))
1.152 schwarze 925: p->flags |= TERMP_NOSPACE;
1.115 kristaps 926: term_eqn(p, n->eqn);
1.188 schwarze 927: if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.153 schwarze 928: p->flags |= TERMP_NOSPACE;
1.97 kristaps 929: return;
1.171 schwarze 930: case ROFFT_TBL:
1.169 schwarze 931: if (p->tbl.cols == NULL)
932: term_vspace(p);
1.92 kristaps 933: term_tbl(p, n->span);
1.97 kristaps 934: return;
1.1 kristaps 935: default:
936: break;
937: }
1.224 schwarze 938:
1.193 schwarze 939: if (n->tok < ROFF_MAX) {
1.194 schwarze 940: roff_term_pre(p, n);
1.193 schwarze 941: return;
942: }
943:
1.214 schwarze 944: act = man_term_act(n->tok);
1.220 schwarze 945: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.97 kristaps 946: term_fontrepl(p, TERMFONT_NONE);
947:
948: c = 1;
1.214 schwarze 949: if (act->pre != NULL)
950: c = (*act->pre)(p, mt, n, meta);
1.97 kristaps 951:
1.227 schwarze 952: if (c && n->child != NULL)
1.135 schwarze 953: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 954:
1.214 schwarze 955: if (act->post != NULL)
956: (*act->post)(p, mt, n, meta);
1.220 schwarze 957: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.97 kristaps 958: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 959:
1.130 schwarze 960: out:
961: /*
962: * If we're in a literal context, make sure that words
963: * together on the same line stay together. This is a
964: * POST-printing call, so we check the NEXT word. Since
965: * -man doesn't have nested macros, we don't need to be
966: * more specific than this.
967: */
1.225 schwarze 968: if (n->flags & NODE_NOFILL &&
1.157 schwarze 969: ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&
1.188 schwarze 970: (n->next == NULL || n->next->flags & NODE_LINE)) {
1.202 schwarze 971: p->flags |= TERMP_BRNEVER | TERMP_NOSPACE;
1.157 schwarze 972: if (n->string != NULL && *n->string != '\0')
1.130 schwarze 973: term_flushln(p);
974: else
975: term_newln(p);
1.202 schwarze 976: p->flags &= ~TERMP_BRNEVER;
1.203 schwarze 977: if (p->tcol->rmargin < p->maxrmargin &&
978: n->parent->tok == MAN_HP) {
979: p->tcol->offset = p->tcol->rmargin;
980: p->tcol->rmargin = p->maxrmargin;
1.202 schwarze 981: }
1.130 schwarze 982: }
1.227 schwarze 983: if (n->flags & NODE_EOS)
1.63 kristaps 984: p->flags |= TERMP_SENTENCE;
1.1 kristaps 985: }
986:
987: static void
1.52 kristaps 988: print_man_nodelist(DECL_ARGS)
1.1 kristaps 989: {
1.168 schwarze 990: while (n != NULL) {
991: print_man_node(p, mt, n, meta);
992: n = n->next;
993: }
1.1 kristaps 994: }
995:
1.31 kristaps 996: static void
1.173 schwarze 997: print_man_foot(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 998: {
1.147 schwarze 999: char *title;
1.156 schwarze 1000: size_t datelen, titlen;
1.73 kristaps 1001:
1.125 schwarze 1002: assert(meta->title);
1003: assert(meta->msec);
1004: assert(meta->date);
1.1 kristaps 1005:
1.52 kristaps 1006: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1007:
1.149 schwarze 1008: if (meta->hasbody)
1009: term_vspace(p);
1.126 schwarze 1010:
1011: /*
1012: * Temporary, undocumented option to imitate mdoc(7) output.
1.173 schwarze 1013: * In the bottom right corner, use the operating system
1014: * instead of the title.
1.126 schwarze 1015: */
1016:
1017: if ( ! p->mdocstyle) {
1.149 schwarze 1018: if (meta->hasbody) {
1019: term_vspace(p);
1020: term_vspace(p);
1021: }
1.147 schwarze 1022: mandoc_asprintf(&title, "%s(%s)",
1023: meta->title, meta->msec);
1.227 schwarze 1024: } else if (meta->os != NULL) {
1.173 schwarze 1025: title = mandoc_strdup(meta->os);
1.126 schwarze 1026: } else {
1.147 schwarze 1027: title = mandoc_strdup("");
1.126 schwarze 1028: }
1.125 schwarze 1029: datelen = term_strlen(p, meta->date);
1.1 kristaps 1030:
1.173 schwarze 1031: /* Bottom left corner: operating system. */
1.126 schwarze 1032:
1.1 kristaps 1033: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.139 schwarze 1034: p->trailspace = 1;
1.203 schwarze 1035: p->tcol->offset = 0;
1036: p->tcol->rmargin = p->maxrmargin > datelen ?
1.156 schwarze 1037: (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
1.1 kristaps 1038:
1.173 schwarze 1039: if (meta->os)
1040: term_word(p, meta->os);
1.1 kristaps 1041: term_flushln(p);
1042:
1.126 schwarze 1043: /* At the bottom in the middle: manual date. */
1044:
1.203 schwarze 1045: p->tcol->offset = p->tcol->rmargin;
1.156 schwarze 1046: titlen = term_strlen(p, title);
1.203 schwarze 1047: p->tcol->rmargin = p->maxrmargin > titlen ?
1048: p->maxrmargin - titlen : 0;
1.117 schwarze 1049: p->flags |= TERMP_NOSPACE;
1.123 schwarze 1050:
1.125 schwarze 1051: term_word(p, meta->date);
1.123 schwarze 1052: term_flushln(p);
1053:
1.126 schwarze 1054: /* Bottom right corner: manual title and section. */
1055:
1.123 schwarze 1056: p->flags &= ~TERMP_NOBREAK;
1057: p->flags |= TERMP_NOSPACE;
1.139 schwarze 1058: p->trailspace = 0;
1.203 schwarze 1059: p->tcol->offset = p->tcol->rmargin;
1060: p->tcol->rmargin = p->maxrmargin;
1.1 kristaps 1061:
1.123 schwarze 1062: term_word(p, title);
1.1 kristaps 1063: term_flushln(p);
1.211 schwarze 1064:
1065: /*
1066: * Reset the terminal state for more output after the footer:
1067: * Some output modes, in particular PostScript and PDF, print
1068: * the header and the footer into a buffer such that it can be
1069: * reused for multiple output pages, then go on to format the
1070: * main text.
1071: */
1072:
1073: p->tcol->offset = 0;
1074: p->flags = 0;
1075:
1.147 schwarze 1076: free(title);
1.1 kristaps 1077: }
1078:
1.31 kristaps 1079: static void
1.173 schwarze 1080: print_man_head(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1081: {
1.148 schwarze 1082: const char *volume;
1.147 schwarze 1083: char *title;
1.148 schwarze 1084: size_t vollen, titlen;
1.73 kristaps 1085:
1.135 schwarze 1086: assert(meta->title);
1087: assert(meta->msec);
1.1 kristaps 1088:
1.148 schwarze 1089: volume = NULL == meta->vol ? "" : meta->vol;
1090: vollen = term_strlen(p, volume);
1.1 kristaps 1091:
1.126 schwarze 1092: /* Top left corner: manual title and section. */
1093:
1.147 schwarze 1094: mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.77 kristaps 1095: titlen = term_strlen(p, title);
1.1 kristaps 1096:
1.118 schwarze 1097: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.139 schwarze 1098: p->trailspace = 1;
1.203 schwarze 1099: p->tcol->offset = 0;
1100: p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
1.148 schwarze 1101: (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.156 schwarze 1102: vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
1.1 kristaps 1103:
1104: term_word(p, title);
1105: term_flushln(p);
1106:
1.126 schwarze 1107: /* At the top in the middle: manual volume. */
1108:
1.117 schwarze 1109: p->flags |= TERMP_NOSPACE;
1.203 schwarze 1110: p->tcol->offset = p->tcol->rmargin;
1111: p->tcol->rmargin = p->tcol->offset + vollen + titlen <
1112: p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1113:
1.148 schwarze 1114: term_word(p, volume);
1.1 kristaps 1115: term_flushln(p);
1116:
1.126 schwarze 1117: /* Top right corner: title and section, again. */
1118:
1.1 kristaps 1119: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 1120: p->trailspace = 0;
1.203 schwarze 1121: if (p->tcol->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1122: p->flags |= TERMP_NOSPACE;
1.203 schwarze 1123: p->tcol->offset = p->tcol->rmargin;
1124: p->tcol->rmargin = p->maxrmargin;
1.57 kristaps 1125: term_word(p, title);
1126: term_flushln(p);
1127: }
1.1 kristaps 1128:
1.118 schwarze 1129: p->flags &= ~TERMP_NOSPACE;
1.203 schwarze 1130: p->tcol->offset = 0;
1131: p->tcol->rmargin = p->maxrmargin;
1.61 kristaps 1132:
1.146 schwarze 1133: /*
1.126 schwarze 1134: * Groff prints three blank lines before the content.
1135: * Do the same, except in the temporary, undocumented
1136: * mode imitating mdoc(7) output.
1.62 kristaps 1137: */
1138:
1.61 kristaps 1139: term_vspace(p);
1.126 schwarze 1140: if ( ! p->mdocstyle) {
1141: term_vspace(p);
1142: term_vspace(p);
1143: }
1.147 schwarze 1144: free(title);
1.1 kristaps 1145: }
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