Annotation of src/usr.bin/mandoc/man_term.c, Revision 1.196
1.196 ! schwarze 1: /* $OpenBSD: man_term.c,v 1.195 2023/04/28 20:14:19 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;
1.142 schwarze 154: size_t save_defindent;
1.18 schwarze 155:
156: p = (struct termp *)arg;
1.159 schwarze 157: save_defindent = p->defindent;
158: if (p->synopsisonly == 0 && p->defindent == 0)
159: p->defindent = 7;
1.156 schwarze 160: p->tcol->rmargin = p->maxrmargin = p->defrmargin;
1.151 schwarze 161: term_tab_set(p, NULL);
162: term_tab_set(p, "T");
163: term_tab_set(p, ".5i");
1.18 schwarze 164:
1.180 schwarze 165: memset(&mt, 0, sizeof(mt));
1.77 schwarze 166: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
167: mt.offset = term_len(p, p->defindent);
1.88 schwarze 168: mt.pardist = 1;
1.11 schwarze 169:
1.134 schwarze 170: n = man->first->child;
1.104 schwarze 171: if (p->synopsisonly) {
1.182 schwarze 172: for (nn = NULL; n != NULL; n = n->next) {
173: if (n->tok != MAN_SH)
174: continue;
175: nc = n->child->child;
176: if (nc->type != ROFFT_TEXT)
177: continue;
178: if (strcmp(nc->string, "SYNOPSIS") == 0)
1.104 schwarze 179: break;
1.182 schwarze 180: if (nn == NULL && strcmp(nc->string, "NAME") == 0)
181: nn = n;
1.104 schwarze 182: }
1.182 schwarze 183: if (n == NULL)
184: n = nn;
185: p->flags |= TERMP_NOSPACE;
186: if (n != NULL && (n = n->child->next->child) != NULL)
187: print_man_nodelist(p, &mt, n, man);
188: term_newln(p);
1.104 schwarze 189: } else {
1.176 schwarze 190: term_begin(p, print_man_head, print_man_foot, man);
1.104 schwarze 191: p->flags |= TERMP_NOSPACE;
192: if (n != NULL)
1.176 schwarze 193: print_man_nodelist(p, &mt, n, man);
1.104 schwarze 194: term_end(p);
195: }
1.159 schwarze 196: p->defindent = save_defindent;
1.1 kristaps 197: }
198:
1.69 schwarze 199: /*
200: * Printing leading vertical space before a block.
201: * This is used for the paragraph macros.
202: * The rules are pretty simple, since there's very little nesting going
203: * on here. Basically, if we're the first within another block (SS/SH),
204: * then don't emit vertical space. If we are (RS), then do. If not the
205: * first, print it.
206: */
1.18 schwarze 207: static void
1.187 schwarze 208: print_bvspace(struct termp *p, struct roff_node *n, int pardist)
1.18 schwarze 209: {
1.187 schwarze 210: struct roff_node *nch;
211: int i;
1.69 schwarze 212:
1.18 schwarze 213: term_newln(p);
1.64 schwarze 214:
1.187 schwarze 215: if (n->body != NULL &&
216: (nch = roff_node_child(n->body)) != NULL &&
217: nch->type == ROFFT_TBL)
218: return;
219:
220: if (n->parent->tok != MAN_RS && roff_node_prev(n) == NULL)
221: return;
1.11 schwarze 222:
1.88 schwarze 223: for (i = 0; i < pardist; i++)
224: term_vspace(p);
1.174 schwarze 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;
1.196 ! schwarze 328: }
! 329:
! 330: static int
! 331: pre_MR(DECL_ARGS)
! 332: {
! 333: term_fontrepl(p, TERMFONT_NONE);
! 334: n = n->child;
! 335: if (n != NULL) {
! 336: term_word(p, n->string); /* name */
! 337: p->flags |= TERMP_NOSPACE;
! 338: }
! 339: term_word(p, "(");
! 340: p->flags |= TERMP_NOSPACE;
! 341: if (n != NULL && (n = n->next) != NULL) {
! 342: term_word(p, n->string); /* section */
! 343: p->flags |= TERMP_NOSPACE;
! 344: }
! 345: term_word(p, ")");
! 346: if (n != NULL && (n = n->next) != NULL) {
! 347: p->flags |= TERMP_NOSPACE;
! 348: term_word(p, n->string); /* suffix */
! 349: }
! 350: return 0;
1.82 schwarze 351: }
352:
353: static int
354: pre_OP(DECL_ARGS)
355: {
356: term_word(p, "[");
1.169 schwarze 357: p->flags |= TERMP_KEEP | TERMP_NOSPACE;
1.82 schwarze 358:
1.180 schwarze 359: if ((n = n->child) != NULL) {
1.82 schwarze 360: term_fontrepl(p, TERMFONT_BOLD);
361: term_word(p, n->string);
362: }
1.180 schwarze 363: if (n != NULL && n->next != NULL) {
1.82 schwarze 364: term_fontrepl(p, TERMFONT_UNDER);
365: term_word(p, n->next->string);
366: }
367: term_fontrepl(p, TERMFONT_NONE);
1.169 schwarze 368: p->flags &= ~TERMP_KEEP;
1.82 schwarze 369: p->flags |= TERMP_NOSPACE;
370: term_word(p, "]");
1.138 schwarze 371: return 0;
1.1 kristaps 372: }
373:
374: static int
1.45 schwarze 375: pre_in(DECL_ARGS)
1.11 schwarze 376: {
1.116 schwarze 377: struct roffsu su;
378: const char *cp;
1.45 schwarze 379: size_t v;
1.116 schwarze 380: int less;
1.45 schwarze 381:
382: term_newln(p);
383:
1.156 schwarze 384: if (n->child == NULL) {
385: p->tcol->offset = mt->offset;
1.138 schwarze 386: return 0;
1.45 schwarze 387: }
1.11 schwarze 388:
1.45 schwarze 389: cp = n->child->string;
390: less = 0;
1.11 schwarze 391:
1.180 schwarze 392: if (*cp == '-')
1.45 schwarze 393: less = -1;
1.180 schwarze 394: else if (*cp == '+')
1.45 schwarze 395: less = 1;
396: else
397: cp--;
398:
1.157 schwarze 399: if (a2roffsu(++cp, &su, SCALE_EN) == NULL)
1.138 schwarze 400: return 0;
1.45 schwarze 401:
1.158 schwarze 402: v = term_hen(p, &su);
1.45 schwarze 403:
404: if (less < 0)
1.156 schwarze 405: p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset;
1.45 schwarze 406: else if (less > 0)
1.156 schwarze 407: p->tcol->offset += v;
1.100 schwarze 408: else
1.156 schwarze 409: p->tcol->offset = v;
410: if (p->tcol->offset > SHRT_MAX)
411: p->tcol->offset = term_len(p, p->defindent);
1.8 schwarze 412:
1.152 schwarze 413: return 0;
414: }
415:
416: static int
417: pre_DT(DECL_ARGS)
418: {
419: term_tab_set(p, NULL);
420: term_tab_set(p, "T");
421: term_tab_set(p, ".5i");
1.138 schwarze 422: return 0;
1.8 schwarze 423: }
424:
425: static int
1.11 schwarze 426: pre_HP(DECL_ARGS)
427: {
1.116 schwarze 428: struct roffsu su;
1.125 schwarze 429: const struct roff_node *nn;
1.116 schwarze 430: int len;
1.11 schwarze 431:
432: switch (n->type) {
1.124 schwarze 433: case ROFFT_BLOCK:
1.88 schwarze 434: print_bvspace(p, n, mt->pardist);
1.138 schwarze 435: return 1;
1.180 schwarze 436: case ROFFT_HEAD:
437: return 0;
1.124 schwarze 438: case ROFFT_BODY:
1.11 schwarze 439: break;
440: default:
1.180 schwarze 441: abort();
1.11 schwarze 442: }
443:
1.179 schwarze 444: if (n->child == NULL)
445: return 0;
446:
447: if ((n->child->flags & NODE_NOFILL) == 0) {
1.99 schwarze 448: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.93 schwarze 449: p->trailspace = 2;
1.84 schwarze 450: }
451:
1.11 schwarze 452: /* Calculate offset. */
453:
1.116 schwarze 454: if ((nn = n->parent->head->child) != NULL &&
1.157 schwarze 455: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 456: len = term_hen(p, &su);
1.117 schwarze 457: if (len < 0 && (size_t)(-len) > mt->offset)
458: len = -mt->offset;
459: else if (len > SHRT_MAX)
460: len = term_len(p, p->defindent);
1.116 schwarze 461: mt->lmargin[mt->lmargincur] = len;
462: } else
463: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 464:
1.156 schwarze 465: p->tcol->offset = mt->offset;
466: p->tcol->rmargin = mt->offset + len;
1.138 schwarze 467: return 1;
1.11 schwarze 468: }
469:
470: static void
471: post_HP(DECL_ARGS)
472: {
473: switch (n->type) {
1.180 schwarze 474: case ROFFT_BLOCK:
475: case ROFFT_HEAD:
476: break;
1.124 schwarze 477: case ROFFT_BODY:
1.90 schwarze 478: term_newln(p);
1.127 schwarze 479:
480: /*
481: * Compatibility with a groff bug.
482: * The .HP macro uses the undocumented .tag request
483: * which causes a line break and cancels no-space
484: * mode even if there isn't any output.
485: */
486:
487: if (n->child == NULL)
488: term_vspace(p);
489:
1.99 schwarze 490: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.93 schwarze 491: p->trailspace = 0;
1.156 schwarze 492: p->tcol->offset = mt->offset;
493: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 494: break;
495: default:
1.180 schwarze 496: abort();
1.11 schwarze 497: }
498: }
499:
500: static int
1.1 kristaps 501: pre_PP(DECL_ARGS)
502: {
1.11 schwarze 503: switch (n->type) {
1.124 schwarze 504: case ROFFT_BLOCK:
1.77 schwarze 505: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.88 schwarze 506: print_bvspace(p, n, mt->pardist);
1.11 schwarze 507: break;
1.180 schwarze 508: case ROFFT_HEAD:
509: return 0;
510: case ROFFT_BODY:
1.156 schwarze 511: p->tcol->offset = mt->offset;
1.11 schwarze 512: break;
1.180 schwarze 513: default:
514: abort();
1.11 schwarze 515: }
1.180 schwarze 516: return 1;
1.1 kristaps 517: }
518:
519: static int
520: pre_IP(DECL_ARGS)
521: {
1.116 schwarze 522: struct roffsu su;
1.125 schwarze 523: const struct roff_node *nn;
1.178 schwarze 524: int len;
1.11 schwarze 525:
526: switch (n->type) {
1.180 schwarze 527: case ROFFT_BLOCK:
528: print_bvspace(p, n, mt->pardist);
529: return 1;
1.124 schwarze 530: case ROFFT_HEAD:
1.11 schwarze 531: p->flags |= TERMP_NOBREAK;
1.93 schwarze 532: p->trailspace = 1;
1.11 schwarze 533: break;
1.180 schwarze 534: case ROFFT_BODY:
1.192 schwarze 535: p->flags |= TERMP_NOSPACE | TERMP_NONEWLINE;
1.180 schwarze 536: break;
1.11 schwarze 537: default:
1.180 schwarze 538: abort();
1.11 schwarze 539: }
540:
1.57 schwarze 541: /* Calculate the offset from the optional second argument. */
1.116 schwarze 542: if ((nn = n->parent->head->child) != NULL &&
543: (nn = nn->next) != NULL &&
1.157 schwarze 544: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 545: len = term_hen(p, &su);
1.116 schwarze 546: if (len < 0 && (size_t)(-len) > mt->offset)
547: len = -mt->offset;
1.117 schwarze 548: else if (len > SHRT_MAX)
549: len = term_len(p, p->defindent);
550: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 551: } else
552: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 553:
554: switch (n->type) {
1.124 schwarze 555: case ROFFT_HEAD:
1.156 schwarze 556: p->tcol->offset = mt->offset;
557: p->tcol->rmargin = mt->offset + len;
1.188 schwarze 558: if (n->child != NULL)
1.89 schwarze 559: print_man_node(p, mt, n->child, meta);
1.138 schwarze 560: return 0;
1.124 schwarze 561: case ROFFT_BODY:
1.156 schwarze 562: p->tcol->offset = mt->offset + len;
563: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 564: break;
565: default:
1.180 schwarze 566: abort();
1.11 schwarze 567: }
1.138 schwarze 568: return 1;
1.11 schwarze 569: }
1.1 kristaps 570:
1.11 schwarze 571: static void
572: post_IP(DECL_ARGS)
573: {
574: switch (n->type) {
1.180 schwarze 575: case ROFFT_BLOCK:
576: break;
1.124 schwarze 577: case ROFFT_HEAD:
1.11 schwarze 578: term_flushln(p);
579: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 580: p->trailspace = 0;
1.156 schwarze 581: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 582: break;
1.124 schwarze 583: case ROFFT_BODY:
1.57 schwarze 584: term_newln(p);
1.156 schwarze 585: p->tcol->offset = mt->offset;
1.11 schwarze 586: break;
587: default:
1.180 schwarze 588: abort();
1.11 schwarze 589: }
1.1 kristaps 590: }
591:
592: static int
593: pre_TP(DECL_ARGS)
594: {
1.116 schwarze 595: struct roffsu su;
1.125 schwarze 596: struct roff_node *nn;
1.178 schwarze 597: int len;
1.11 schwarze 598:
599: switch (n->type) {
1.180 schwarze 600: case ROFFT_BLOCK:
601: if (n->tok == MAN_TP)
602: print_bvspace(p, n, mt->pardist);
603: return 1;
1.124 schwarze 604: case ROFFT_HEAD:
1.137 schwarze 605: p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
1.93 schwarze 606: p->trailspace = 1;
1.11 schwarze 607: break;
1.124 schwarze 608: case ROFFT_BODY:
1.192 schwarze 609: p->flags |= TERMP_NOSPACE | TERMP_NONEWLINE;
1.11 schwarze 610: break;
611: default:
1.180 schwarze 612: abort();
1.11 schwarze 613: }
614:
615: /* Calculate offset. */
1.1 kristaps 616:
1.116 schwarze 617: if ((nn = n->parent->head->child) != NULL &&
1.141 schwarze 618: nn->string != NULL && ! (NODE_LINE & nn->flags) &&
1.157 schwarze 619: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 620: len = term_hen(p, &su);
1.116 schwarze 621: if (len < 0 && (size_t)(-len) > mt->offset)
622: len = -mt->offset;
1.117 schwarze 623: else if (len > SHRT_MAX)
624: len = term_len(p, p->defindent);
625: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 626: } else
627: len = mt->lmargin[mt->lmargincur];
1.8 schwarze 628:
1.11 schwarze 629: switch (n->type) {
1.124 schwarze 630: case ROFFT_HEAD:
1.156 schwarze 631: p->tcol->offset = mt->offset;
632: p->tcol->rmargin = mt->offset + len;
1.11 schwarze 633:
634: /* Don't print same-line elements. */
1.95 schwarze 635: nn = n->child;
1.180 schwarze 636: while (nn != NULL && (nn->flags & NODE_LINE) == 0)
1.95 schwarze 637: nn = nn->next;
1.185 schwarze 638:
1.180 schwarze 639: while (nn != NULL) {
1.95 schwarze 640: print_man_node(p, mt, nn, meta);
641: nn = nn->next;
642: }
1.138 schwarze 643: return 0;
1.124 schwarze 644: case ROFFT_BODY:
1.156 schwarze 645: p->tcol->offset = mt->offset + len;
646: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 647: p->trailspace = 0;
1.137 schwarze 648: p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
1.11 schwarze 649: break;
650: default:
1.180 schwarze 651: abort();
1.11 schwarze 652: }
1.138 schwarze 653: return 1;
1.11 schwarze 654: }
1.1 kristaps 655:
1.11 schwarze 656: static void
657: post_TP(DECL_ARGS)
658: {
659: switch (n->type) {
1.180 schwarze 660: case ROFFT_BLOCK:
661: break;
1.124 schwarze 662: case ROFFT_HEAD:
1.11 schwarze 663: term_flushln(p);
664: break;
1.124 schwarze 665: case ROFFT_BODY:
1.57 schwarze 666: term_newln(p);
1.156 schwarze 667: p->tcol->offset = mt->offset;
1.11 schwarze 668: break;
669: default:
1.180 schwarze 670: abort();
1.11 schwarze 671: }
1.1 kristaps 672: }
673:
674: static int
675: pre_SS(DECL_ARGS)
676: {
1.88 schwarze 677: int i;
1.1 kristaps 678:
1.11 schwarze 679: switch (n->type) {
1.124 schwarze 680: case ROFFT_BLOCK:
1.77 schwarze 681: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
682: mt->offset = term_len(p, p->defindent);
1.111 schwarze 683:
684: /*
685: * No vertical space before the first subsection
686: * and after an empty subsection.
687: */
688:
1.187 schwarze 689: if ((n = roff_node_prev(n)) == NULL ||
690: (n->tok == MAN_SS && roff_node_child(n->body) == NULL))
1.11 schwarze 691: break;
1.111 schwarze 692:
1.88 schwarze 693: for (i = 0; i < mt->pardist; i++)
694: term_vspace(p);
1.11 schwarze 695: break;
1.124 schwarze 696: case ROFFT_HEAD:
1.21 schwarze 697: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 698: p->tcol->offset = term_len(p, 3);
699: p->tcol->rmargin = mt->offset;
1.129 schwarze 700: p->trailspace = mt->offset;
701: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 702: break;
1.124 schwarze 703: case ROFFT_BODY:
1.156 schwarze 704: p->tcol->offset = mt->offset;
705: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 706: p->trailspace = 0;
707: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 708: break;
709: default:
710: break;
711: }
1.138 schwarze 712: return 1;
1.1 kristaps 713: }
714:
715: static int
716: pre_SH(DECL_ARGS)
717: {
1.88 schwarze 718: int i;
1.1 kristaps 719:
1.11 schwarze 720: switch (n->type) {
1.124 schwarze 721: case ROFFT_BLOCK:
1.77 schwarze 722: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
723: mt->offset = term_len(p, p->defindent);
1.111 schwarze 724:
725: /*
726: * No vertical space before the first section
727: * and after an empty section.
728: */
729:
1.187 schwarze 730: if ((n = roff_node_prev(n)) == NULL ||
731: (n->tok == MAN_SH && roff_node_child(n->body) == NULL))
1.29 schwarze 732: break;
1.111 schwarze 733:
1.88 schwarze 734: for (i = 0; i < mt->pardist; i++)
735: term_vspace(p);
1.11 schwarze 736: break;
1.124 schwarze 737: case ROFFT_HEAD:
1.21 schwarze 738: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 739: p->tcol->offset = 0;
740: p->tcol->rmargin = mt->offset;
1.129 schwarze 741: p->trailspace = mt->offset;
742: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 743: break;
1.124 schwarze 744: case ROFFT_BODY:
1.156 schwarze 745: p->tcol->offset = mt->offset;
746: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 747: p->trailspace = 0;
748: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 749: break;
750: default:
1.180 schwarze 751: abort();
1.11 schwarze 752: }
1.138 schwarze 753: return 1;
1.1 kristaps 754: }
755:
756: static void
757: post_SH(DECL_ARGS)
758: {
1.11 schwarze 759: switch (n->type) {
1.180 schwarze 760: case ROFFT_BLOCK:
761: break;
1.124 schwarze 762: case ROFFT_HEAD:
763: case ROFFT_BODY:
1.11 schwarze 764: term_newln(p);
765: break;
766: default:
1.180 schwarze 767: abort();
1.13 schwarze 768: }
769: }
770:
771: static int
772: pre_RS(DECL_ARGS)
773: {
1.116 schwarze 774: struct roffsu su;
1.13 schwarze 775:
776: switch (n->type) {
1.124 schwarze 777: case ROFFT_BLOCK:
1.13 schwarze 778: term_newln(p);
1.138 schwarze 779: return 1;
1.124 schwarze 780: case ROFFT_HEAD:
1.138 schwarze 781: return 0;
1.180 schwarze 782: case ROFFT_BODY:
783: break;
1.13 schwarze 784: default:
1.180 schwarze 785: abort();
1.13 schwarze 786: }
787:
1.118 schwarze 788: n = n->parent->head;
789: n->aux = SHRT_MAX + 1;
1.130 schwarze 790: if (n->child == NULL)
791: n->aux = mt->lmargin[mt->lmargincur];
1.157 schwarze 792: else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
1.158 schwarze 793: n->aux = term_hen(p, &su);
1.118 schwarze 794: if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
795: n->aux = -mt->offset;
796: else if (n->aux > SHRT_MAX)
797: n->aux = term_len(p, p->defindent);
1.13 schwarze 798:
1.118 schwarze 799: mt->offset += n->aux;
1.156 schwarze 800: p->tcol->offset = mt->offset;
801: p->tcol->rmargin = p->maxrmargin;
1.13 schwarze 802:
1.70 schwarze 803: if (++mt->lmarginsz < MAXMARGINS)
804: mt->lmargincur = mt->lmarginsz;
805:
1.131 schwarze 806: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.138 schwarze 807: return 1;
1.13 schwarze 808: }
809:
810: static void
811: post_RS(DECL_ARGS)
812: {
813: switch (n->type) {
1.124 schwarze 814: case ROFFT_BLOCK:
815: case ROFFT_HEAD:
1.69 schwarze 816: return;
1.180 schwarze 817: case ROFFT_BODY:
818: break;
1.13 schwarze 819: default:
1.180 schwarze 820: abort();
1.11 schwarze 821: }
1.180 schwarze 822: term_newln(p);
1.118 schwarze 823: mt->offset -= n->parent->head->aux;
1.156 schwarze 824: p->tcol->offset = mt->offset;
1.70 schwarze 825: if (--mt->lmarginsz < MAXMARGINS)
826: mt->lmargincur = mt->lmarginsz;
1.168 schwarze 827: }
828:
829: static int
830: pre_SY(DECL_ARGS)
831: {
832: const struct roff_node *nn;
833: int len;
834:
835: switch (n->type) {
836: case ROFFT_BLOCK:
1.187 schwarze 837: if ((nn = roff_node_prev(n)) == NULL || nn->tok != MAN_SY)
1.170 schwarze 838: print_bvspace(p, n, mt->pardist);
1.168 schwarze 839: return 1;
840: case ROFFT_HEAD:
841: case ROFFT_BODY:
842: break;
843: default:
844: abort();
845: }
846:
847: nn = n->parent->head->child;
1.172 schwarze 848: len = nn == NULL ? 1 : term_strlen(p, nn->string) + 1;
1.168 schwarze 849:
850: switch (n->type) {
851: case ROFFT_HEAD:
852: p->tcol->offset = mt->offset;
853: p->tcol->rmargin = mt->offset + len;
1.181 schwarze 854: if (n->next->child == NULL ||
855: (n->next->child->flags & NODE_NOFILL) == 0)
856: p->flags |= TERMP_NOBREAK;
1.168 schwarze 857: term_fontrepl(p, TERMFONT_BOLD);
858: break;
859: case ROFFT_BODY:
860: mt->lmargin[mt->lmargincur] = len;
861: p->tcol->offset = mt->offset + len;
862: p->tcol->rmargin = p->maxrmargin;
863: p->flags |= TERMP_NOSPACE;
864: break;
865: default:
866: abort();
867: }
868: return 1;
869: }
870:
871: static void
872: post_SY(DECL_ARGS)
873: {
874: switch (n->type) {
1.180 schwarze 875: case ROFFT_BLOCK:
876: break;
1.168 schwarze 877: case ROFFT_HEAD:
878: term_flushln(p);
879: p->flags &= ~TERMP_NOBREAK;
880: break;
881: case ROFFT_BODY:
882: term_newln(p);
883: p->tcol->offset = mt->offset;
884: break;
885: default:
1.180 schwarze 886: abort();
1.168 schwarze 887: }
1.91 schwarze 888: }
889:
890: static int
891: pre_UR(DECL_ARGS)
892: {
1.138 schwarze 893: return n->type != ROFFT_HEAD;
1.91 schwarze 894: }
895:
896: static void
897: post_UR(DECL_ARGS)
898: {
1.124 schwarze 899: if (n->type != ROFFT_BLOCK)
1.91 schwarze 900: return;
901:
902: term_word(p, "<");
903: p->flags |= TERMP_NOSPACE;
904:
1.180 schwarze 905: if (n->child->child != NULL)
1.91 schwarze 906: print_man_node(p, mt, n->child->child, meta);
907:
908: p->flags |= TERMP_NOSPACE;
909: term_word(p, ">");
1.47 schwarze 910: }
911:
1.1 kristaps 912: static void
1.19 schwarze 913: print_man_node(DECL_ARGS)
1.1 kristaps 914: {
1.167 schwarze 915: const struct man_term_act *act;
916: int c;
1.1 kristaps 917:
1.192 schwarze 918: /*
919: * In no-fill mode, break the output line at the beginning
920: * of new input lines except after \c, and nowhere else.
921: */
922:
923: if (n->flags & NODE_NOFILL) {
924: if (n->flags & NODE_LINE &&
925: (p->flags & TERMP_NONEWLINE) == 0)
926: term_newln(p);
927: p->flags |= TERMP_BRNEVER;
1.193 schwarze 928: } else {
929: if (n->flags & NODE_LINE)
930: term_tab_ref(p);
1.192 schwarze 931: p->flags &= ~TERMP_BRNEVER;
1.193 schwarze 932: }
1.192 schwarze 933:
1.188 schwarze 934: if (n->flags & NODE_ID)
935: term_tag_write(n, p->line);
936:
1.1 kristaps 937: switch (n->type) {
1.124 schwarze 938: case ROFFT_TEXT:
1.61 schwarze 939: /*
940: * If we have a blank line, output a vertical space.
941: * If we have a space as the first character, break
942: * before printing the line's data.
943: */
1.153 schwarze 944: if (*n->string == '\0') {
1.160 schwarze 945: if (p->flags & TERMP_NONEWLINE)
946: term_newln(p);
947: else
948: term_vspace(p);
1.61 schwarze 949: return;
1.153 schwarze 950: } else if (*n->string == ' ' && n->flags & NODE_LINE &&
951: (p->flags & TERMP_NONEWLINE) == 0)
1.60 schwarze 952: term_newln(p);
1.165 schwarze 953: else if (n->flags & NODE_DELIMC)
954: p->flags |= TERMP_NOSPACE;
1.21 schwarze 955:
1.1 kristaps 956: term_word(p, n->string);
1.84 schwarze 957: goto out;
1.163 schwarze 958: case ROFFT_COMMENT:
959: return;
1.124 schwarze 960: case ROFFT_EQN:
1.141 schwarze 961: if ( ! (n->flags & NODE_LINE))
1.105 schwarze 962: p->flags |= TERMP_NOSPACE;
1.71 schwarze 963: term_eqn(p, n->eqn);
1.141 schwarze 964: if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.106 schwarze 965: p->flags |= TERMP_NOSPACE;
1.61 schwarze 966: return;
1.124 schwarze 967: case ROFFT_TBL:
1.122 schwarze 968: if (p->tbl.cols == NULL)
1.194 schwarze 969: term_newln(p);
1.58 schwarze 970: term_tbl(p, n->span);
1.61 schwarze 971: return;
1.1 kristaps 972: default:
973: break;
974: }
1.177 schwarze 975:
1.146 schwarze 976: if (n->tok < ROFF_MAX) {
1.147 schwarze 977: roff_term_pre(p, n);
1.146 schwarze 978: return;
979: }
980:
1.167 schwarze 981: act = man_term_act(n->tok);
1.173 schwarze 982: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 983: term_fontrepl(p, TERMFONT_NONE);
984:
985: c = 1;
1.167 schwarze 986: if (act->pre != NULL)
987: c = (*act->pre)(p, mt, n, meta);
1.61 schwarze 988:
1.180 schwarze 989: if (c && n->child != NULL)
1.89 schwarze 990: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 991:
1.167 schwarze 992: if (act->post != NULL)
993: (*act->post)(p, mt, n, meta);
1.173 schwarze 994: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 995: term_fontrepl(p, TERMFONT_NONE);
1.30 schwarze 996:
1.84 schwarze 997: out:
1.192 schwarze 998: if (n->parent->tok == MAN_HP && n->parent->type == ROFFT_BODY &&
999: n->prev == NULL && n->flags & NODE_NOFILL) {
1000: term_newln(p);
1001: p->tcol->offset = p->tcol->rmargin;
1002: p->tcol->rmargin = p->maxrmargin;
1.84 schwarze 1003: }
1.180 schwarze 1004: if (n->flags & NODE_EOS)
1.30 schwarze 1005: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1006: }
1007:
1008: static void
1.21 schwarze 1009: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1010: {
1.121 schwarze 1011: while (n != NULL) {
1012: print_man_node(p, mt, n, meta);
1013: n = n->next;
1014: }
1.1 kristaps 1015: }
1016:
1017: static void
1.126 schwarze 1018: print_man_foot(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1019: {
1.101 schwarze 1020: char *title;
1.109 schwarze 1021: size_t datelen, titlen;
1.41 schwarze 1022:
1.80 schwarze 1023: assert(meta->title);
1024: assert(meta->msec);
1025: assert(meta->date);
1.21 schwarze 1026:
1027: term_fontrepl(p, TERMFONT_NONE);
1.1 kristaps 1028:
1.103 schwarze 1029: if (meta->hasbody)
1030: term_vspace(p);
1.81 schwarze 1031:
1032: /*
1033: * Temporary, undocumented option to imitate mdoc(7) output.
1.126 schwarze 1034: * In the bottom right corner, use the operating system
1035: * instead of the title.
1.81 schwarze 1036: */
1037:
1.79 schwarze 1038: if ( ! p->mdocstyle) {
1.101 schwarze 1039: mandoc_asprintf(&title, "%s(%s)",
1040: meta->title, meta->msec);
1.180 schwarze 1041: } else if (meta->os != NULL) {
1.126 schwarze 1042: title = mandoc_strdup(meta->os);
1.79 schwarze 1043: } else {
1.101 schwarze 1044: title = mandoc_strdup("");
1.79 schwarze 1045: }
1.78 schwarze 1046: datelen = term_strlen(p, meta->date);
1.1 kristaps 1047:
1.126 schwarze 1048: /* Bottom left corner: operating system. */
1.81 schwarze 1049:
1.1 kristaps 1050: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.93 schwarze 1051: p->trailspace = 1;
1.156 schwarze 1052: p->tcol->offset = 0;
1053: p->tcol->rmargin = p->maxrmargin > datelen ?
1.109 schwarze 1054: (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
1.1 kristaps 1055:
1.126 schwarze 1056: if (meta->os)
1057: term_word(p, meta->os);
1.1 kristaps 1058: term_flushln(p);
1059:
1.81 schwarze 1060: /* At the bottom in the middle: manual date. */
1061:
1.156 schwarze 1062: p->tcol->offset = p->tcol->rmargin;
1.109 schwarze 1063: titlen = term_strlen(p, title);
1.156 schwarze 1064: p->tcol->rmargin = p->maxrmargin > titlen ?
1065: p->maxrmargin - titlen : 0;
1.72 schwarze 1066: p->flags |= TERMP_NOSPACE;
1.78 schwarze 1067:
1068: term_word(p, meta->date);
1069: term_flushln(p);
1070:
1.81 schwarze 1071: /* Bottom right corner: manual title and section. */
1072:
1.78 schwarze 1073: p->flags &= ~TERMP_NOBREAK;
1074: p->flags |= TERMP_NOSPACE;
1.93 schwarze 1075: p->trailspace = 0;
1.156 schwarze 1076: p->tcol->offset = p->tcol->rmargin;
1077: p->tcol->rmargin = p->maxrmargin;
1.1 kristaps 1078:
1.78 schwarze 1079: term_word(p, title);
1.1 kristaps 1080: term_flushln(p);
1.164 schwarze 1081:
1082: /*
1083: * Reset the terminal state for more output after the footer:
1084: * Some output modes, in particular PostScript and PDF, print
1085: * the header and the footer into a buffer such that it can be
1086: * reused for multiple output pages, then go on to format the
1087: * main text.
1088: */
1089:
1090: p->tcol->offset = 0;
1091: p->flags = 0;
1092:
1.101 schwarze 1093: free(title);
1.1 kristaps 1094: }
1095:
1096: static void
1.126 schwarze 1097: print_man_head(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1098: {
1.102 schwarze 1099: const char *volume;
1.101 schwarze 1100: char *title;
1.102 schwarze 1101: size_t vollen, titlen;
1.41 schwarze 1102:
1.89 schwarze 1103: assert(meta->title);
1104: assert(meta->msec);
1.1 kristaps 1105:
1.102 schwarze 1106: volume = NULL == meta->vol ? "" : meta->vol;
1107: vollen = term_strlen(p, volume);
1.1 kristaps 1108:
1.81 schwarze 1109: /* Top left corner: manual title and section. */
1110:
1.101 schwarze 1111: mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.42 schwarze 1112: titlen = term_strlen(p, title);
1.1 kristaps 1113:
1.73 schwarze 1114: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.93 schwarze 1115: p->trailspace = 1;
1.156 schwarze 1116: p->tcol->offset = 0;
1117: p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
1.102 schwarze 1118: (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.109 schwarze 1119: vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
1.1 kristaps 1120:
1121: term_word(p, title);
1122: term_flushln(p);
1123:
1.81 schwarze 1124: /* At the top in the middle: manual volume. */
1125:
1.72 schwarze 1126: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1127: p->tcol->offset = p->tcol->rmargin;
1128: p->tcol->rmargin = p->tcol->offset + vollen + titlen <
1129: p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1130:
1.102 schwarze 1131: term_word(p, volume);
1.1 kristaps 1132: term_flushln(p);
1133:
1.81 schwarze 1134: /* Top right corner: title and section, again. */
1135:
1.1 kristaps 1136: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 1137: p->trailspace = 0;
1.156 schwarze 1138: if (p->tcol->rmargin + titlen <= p->maxrmargin) {
1.72 schwarze 1139: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1140: p->tcol->offset = p->tcol->rmargin;
1141: p->tcol->rmargin = p->maxrmargin;
1.25 schwarze 1142: term_word(p, title);
1143: term_flushln(p);
1144: }
1.1 kristaps 1145:
1.73 schwarze 1146: p->flags &= ~TERMP_NOSPACE;
1.156 schwarze 1147: p->tcol->offset = 0;
1148: p->tcol->rmargin = p->maxrmargin;
1.29 schwarze 1149:
1.100 schwarze 1150: /*
1.81 schwarze 1151: * Groff prints three blank lines before the content.
1152: * Do the same, except in the temporary, undocumented
1153: * mode imitating mdoc(7) output.
1.29 schwarze 1154: */
1155:
1156: term_vspace(p);
1.101 schwarze 1157: free(title);
1.1 kristaps 1158: }
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