Annotation of mandoc/man_term.c, Revision 1.234
1.234 ! schwarze 1: /* $Id: man_term.c,v 1.233 2020/01/20 10:37:15 schwarze Exp $ */
1.1 kristaps 2: /*
1.128 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.233 schwarze 4: * Copyright (c) 2010-2015, 2017-2020 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"
1.231 schwarze 30: #include "mandoc.h"
1.171 schwarze 31: #include "roff.h"
32: #include "man.h"
1.40 kristaps 33: #include "out.h"
1.1 kristaps 34: #include "term.h"
1.231 schwarze 35: #include "tag.h"
1.36 kristaps 36: #include "main.h"
1.1 kristaps 37:
1.116 schwarze 38: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.18 kristaps 39:
1.24 kristaps 40: struct mtermp {
1.163 schwarze 41: int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */
1.116 schwarze 42: int lmargincur; /* index of current margin */
43: int lmarginsz; /* actual number of nested margins */
44: size_t offset; /* default offset to visible page */
1.134 schwarze 45: int pardist; /* vert. space before par., unit: [v] */
1.24 kristaps 46: };
1.19 kristaps 47:
1.146 schwarze 48: #define DECL_ARGS struct termp *p, \
1.24 kristaps 49: struct mtermp *mt, \
1.172 schwarze 50: struct roff_node *n, \
1.173 schwarze 51: const struct roff_meta *meta
1.1 kristaps 52:
1.214 schwarze 53: struct man_term_act {
1.1 kristaps 54: int (*pre)(DECL_ARGS);
55: void (*post)(DECL_ARGS);
1.56 kristaps 56: int flags;
57: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 58: };
59:
1.52 kristaps 60: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 61: static void print_man_node(DECL_ARGS);
1.173 schwarze 62: static void print_man_head(struct termp *,
63: const struct roff_meta *);
64: static void print_man_foot(struct termp *,
65: const struct roff_meta *);
1.146 schwarze 66: static void print_bvspace(struct termp *,
1.234 ! schwarze 67: struct roff_node *, int);
1.39 kristaps 68:
1.1 kristaps 69: static int pre_B(DECL_ARGS);
1.199 schwarze 70: static int pre_DT(DECL_ARGS);
1.19 kristaps 71: static int pre_HP(DECL_ARGS);
1.1 kristaps 72: static int pre_I(DECL_ARGS);
1.4 kristaps 73: static int pre_IP(DECL_ARGS);
1.127 kristaps 74: static int pre_OP(DECL_ARGS);
1.134 schwarze 75: static int pre_PD(DECL_ARGS);
1.1 kristaps 76: static int pre_PP(DECL_ARGS);
1.26 kristaps 77: static int pre_RS(DECL_ARGS);
1.1 kristaps 78: static int pre_SH(DECL_ARGS);
79: static int pre_SS(DECL_ARGS);
1.215 schwarze 80: static int pre_SY(DECL_ARGS);
1.1 kristaps 81: static int pre_TP(DECL_ARGS);
1.137 schwarze 82: static int pre_UR(DECL_ARGS);
1.221 schwarze 83: static int pre_abort(DECL_ARGS);
1.127 kristaps 84: static int pre_alternate(DECL_ARGS);
1.29 kristaps 85: static int pre_ign(DECL_ARGS);
1.83 kristaps 86: static int pre_in(DECL_ARGS);
1.84 kristaps 87: static int pre_literal(DECL_ARGS);
1.1 kristaps 88:
1.22 kristaps 89: static void post_IP(DECL_ARGS);
1.20 kristaps 90: static void post_HP(DECL_ARGS);
1.26 kristaps 91: static void post_RS(DECL_ARGS);
1.1 kristaps 92: static void post_SH(DECL_ARGS);
1.215 schwarze 93: static void post_SY(DECL_ARGS);
1.21 kristaps 94: static void post_TP(DECL_ARGS);
1.137 schwarze 95: static void post_UR(DECL_ARGS);
1.1 kristaps 96:
1.231 schwarze 97: static void tag_man(struct termp *, struct roff_node *);
98:
1.214 schwarze 99: static const struct man_term_act man_term_acts[MAN_MAX - MAN_TH] = {
1.56 kristaps 100: { NULL, NULL, 0 }, /* TH */
101: { pre_SH, post_SH, 0 }, /* SH */
1.227 schwarze 102: { pre_SS, post_SH, 0 }, /* SS */
1.56 kristaps 103: { pre_TP, post_TP, 0 }, /* TP */
1.213 schwarze 104: { pre_TP, post_TP, 0 }, /* TQ */
1.221 schwarze 105: { pre_abort, NULL, 0 }, /* LP */
1.56 kristaps 106: { pre_PP, NULL, 0 }, /* PP */
1.221 schwarze 107: { pre_abort, NULL, 0 }, /* P */
1.56 kristaps 108: { pre_IP, post_IP, 0 }, /* IP */
1.146 schwarze 109: { pre_HP, post_HP, 0 }, /* HP */
1.56 kristaps 110: { NULL, NULL, 0 }, /* SM */
111: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 112: { pre_alternate, NULL, 0 }, /* BI */
113: { pre_alternate, NULL, 0 }, /* IB */
114: { pre_alternate, NULL, 0 }, /* BR */
115: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 116: { NULL, NULL, 0 }, /* R */
117: { pre_B, NULL, 0 }, /* B */
118: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 119: { pre_alternate, NULL, 0 }, /* IR */
120: { pre_alternate, NULL, 0 }, /* RI */
1.56 kristaps 121: { NULL, NULL, 0 }, /* RE */
122: { pre_RS, post_RS, 0 }, /* RS */
1.199 schwarze 123: { pre_DT, NULL, 0 }, /* DT */
1.158 schwarze 124: { pre_ign, NULL, MAN_NOTEXT }, /* UC */
1.134 schwarze 125: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.70 joerg 126: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 127: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.215 schwarze 128: { pre_SY, post_SY, 0 }, /* SY */
129: { NULL, NULL, 0 }, /* YS */
1.127 kristaps 130: { pre_OP, NULL, 0 }, /* OP */
1.129 schwarze 131: { pre_literal, NULL, 0 }, /* EX */
132: { pre_literal, NULL, 0 }, /* EE */
1.137 schwarze 133: { pre_UR, post_UR, 0 }, /* UR */
134: { NULL, NULL, 0 }, /* UE */
1.208 schwarze 135: { pre_UR, post_UR, 0 }, /* MT */
136: { NULL, NULL, 0 }, /* ME */
1.1 kristaps 137: };
1.214 schwarze 138: static const struct man_term_act *man_term_act(enum roff_tok);
1.1 kristaps 139:
140:
1.214 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:
1.31 kristaps 148: void
1.223 schwarze 149: terminal_man(void *arg, const struct roff_meta *man)
1.1 kristaps 150: {
1.227 schwarze 151: struct mtermp mt;
1.36 kristaps 152: struct termp *p;
1.229 schwarze 153: struct roff_node *n, *nc, *nn;
1.189 schwarze 154: size_t save_defindent;
1.36 kristaps 155:
156: p = (struct termp *)arg;
1.206 schwarze 157: save_defindent = p->defindent;
158: if (p->synopsisonly == 0 && p->defindent == 0)
159: p->defindent = 7;
1.203 schwarze 160: p->tcol->rmargin = p->maxrmargin = p->defrmargin;
1.198 schwarze 161: term_tab_set(p, NULL);
162: term_tab_set(p, "T");
163: term_tab_set(p, ".5i");
1.36 kristaps 164:
1.227 schwarze 165: memset(&mt, 0, sizeof(mt));
1.122 schwarze 166: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
167: mt.offset = term_len(p, p->defindent);
1.134 schwarze 168: mt.pardist = 1;
1.24 kristaps 169:
1.181 schwarze 170: n = man->first->child;
1.151 schwarze 171: if (p->synopsisonly) {
1.229 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)
1.151 schwarze 179: break;
1.229 schwarze 180: if (nn == NULL && strcmp(nc->string, "NAME") == 0)
181: nn = n;
1.151 schwarze 182: }
1.229 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);
1.151 schwarze 189: } else {
1.223 schwarze 190: term_begin(p, print_man_head, print_man_foot, man);
1.151 schwarze 191: p->flags |= TERMP_NOSPACE;
192: if (n != NULL)
1.223 schwarze 193: print_man_nodelist(p, &mt, n, man);
1.151 schwarze 194: term_end(p);
195: }
1.206 schwarze 196: p->defindent = save_defindent;
1.1 kristaps 197: }
198:
1.111 kristaps 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: */
1.39 kristaps 207: static void
1.234 ! schwarze 208: print_bvspace(struct termp *p, struct roff_node *n, int pardist)
1.18 kristaps 209: {
1.234 ! schwarze 210: struct roff_node *nch;
! 211: int i;
1.111 kristaps 212:
1.39 kristaps 213: term_newln(p);
1.101 schwarze 214:
1.234 ! 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;
1.18 kristaps 222:
1.134 schwarze 223: for (i = 0; i < pardist; i++)
224: term_vspace(p);
1.18 kristaps 225: }
226:
1.221 schwarze 227:
228: static int
229: pre_abort(DECL_ARGS)
230: {
231: abort();
232: }
1.146 schwarze 233:
1.1 kristaps 234: static int
1.29 kristaps 235: pre_ign(DECL_ARGS)
236: {
1.185 schwarze 237: return 0;
1.29 kristaps 238: }
239:
240: static int
1.1 kristaps 241: pre_I(DECL_ARGS)
242: {
1.52 kristaps 243: term_fontrepl(p, TERMFONT_UNDER);
1.185 schwarze 244: return 1;
1.19 kristaps 245: }
246:
1.3 kristaps 247: static int
1.84 kristaps 248: pre_literal(DECL_ARGS)
1.19 kristaps 249: {
1.81 kristaps 250: term_newln(p);
1.88 kristaps 251:
1.117 schwarze 252: /*
253: * Unlike .IP and .TP, .HP does not have a HEAD.
254: * So in case a second call to term_flushln() is needed,
255: * indentation has to be set up explicitly.
256: */
1.203 schwarze 257: if (n->parent->tok == MAN_HP && p->tcol->rmargin < p->maxrmargin) {
258: p->tcol->offset = p->tcol->rmargin;
259: p->tcol->rmargin = p->maxrmargin;
1.139 schwarze 260: p->trailspace = 0;
1.145 schwarze 261: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.117 schwarze 262: p->flags |= TERMP_NOSPACE;
263: }
1.185 schwarze 264: return 0;
1.19 kristaps 265: }
266:
267: static int
1.134 schwarze 268: pre_PD(DECL_ARGS)
269: {
1.160 schwarze 270: struct roffsu su;
1.134 schwarze 271:
272: n = n->child;
1.160 schwarze 273: if (n == NULL) {
1.134 schwarze 274: mt->pardist = 1;
1.185 schwarze 275: return 0;
1.134 schwarze 276: }
1.171 schwarze 277: assert(n->type == ROFFT_TEXT);
1.204 schwarze 278: if (a2roffsu(n->string, &su, SCALE_VS) != NULL)
1.160 schwarze 279: mt->pardist = term_vspan(p, &su);
1.185 schwarze 280: return 0;
1.134 schwarze 281: }
282:
283: static int
1.88 kristaps 284: pre_alternate(DECL_ARGS)
1.3 kristaps 285: {
1.88 kristaps 286: enum termfont font[2];
1.172 schwarze 287: struct roff_node *nn;
1.225 schwarze 288: int i;
1.3 kristaps 289:
1.88 kristaps 290: switch (n->tok) {
1.146 schwarze 291: case MAN_RB:
1.88 kristaps 292: font[0] = TERMFONT_NONE;
293: font[1] = TERMFONT_BOLD;
294: break;
1.146 schwarze 295: case MAN_RI:
1.88 kristaps 296: font[0] = TERMFONT_NONE;
297: font[1] = TERMFONT_UNDER;
298: break;
1.146 schwarze 299: case MAN_BR:
1.88 kristaps 300: font[0] = TERMFONT_BOLD;
301: font[1] = TERMFONT_NONE;
302: break;
1.146 schwarze 303: case MAN_BI:
1.88 kristaps 304: font[0] = TERMFONT_BOLD;
305: font[1] = TERMFONT_UNDER;
306: break;
1.146 schwarze 307: case MAN_IR:
1.88 kristaps 308: font[0] = TERMFONT_UNDER;
309: font[1] = TERMFONT_NONE;
310: break;
1.146 schwarze 311: case MAN_IB:
1.88 kristaps 312: font[0] = TERMFONT_UNDER;
313: font[1] = TERMFONT_BOLD;
314: break;
315: default:
316: abort();
317: }
1.225 schwarze 318: for (i = 0, nn = n->child; nn != NULL; nn = nn->next, i = 1 - i) {
1.88 kristaps 319: term_fontrepl(p, font[i]);
1.179 schwarze 320: assert(nn->type == ROFFT_TEXT);
321: term_word(p, nn->string);
1.188 schwarze 322: if (nn->flags & NODE_EOS)
1.230 schwarze 323: p->flags |= TERMP_SENTENCE;
1.227 schwarze 324: if (nn->next != NULL)
1.4 kristaps 325: p->flags |= TERMP_NOSPACE;
1.3 kristaps 326: }
1.185 schwarze 327: return 0;
1.3 kristaps 328: }
329:
1.1 kristaps 330: static int
331: pre_B(DECL_ARGS)
332: {
1.52 kristaps 333: term_fontrepl(p, TERMFONT_BOLD);
1.185 schwarze 334: return 1;
1.127 kristaps 335: }
336:
337: static int
338: pre_OP(DECL_ARGS)
339: {
340: term_word(p, "[");
1.216 schwarze 341: p->flags |= TERMP_KEEP | TERMP_NOSPACE;
1.127 kristaps 342:
1.227 schwarze 343: if ((n = n->child) != NULL) {
1.127 kristaps 344: term_fontrepl(p, TERMFONT_BOLD);
345: term_word(p, n->string);
346: }
1.227 schwarze 347: if (n != NULL && n->next != NULL) {
1.127 kristaps 348: term_fontrepl(p, TERMFONT_UNDER);
349: term_word(p, n->next->string);
350: }
351: term_fontrepl(p, TERMFONT_NONE);
1.216 schwarze 352: p->flags &= ~TERMP_KEEP;
1.127 kristaps 353: p->flags |= TERMP_NOSPACE;
354: term_word(p, "]");
1.185 schwarze 355: return 0;
1.83 kristaps 356: }
357:
358: static int
359: pre_in(DECL_ARGS)
360: {
1.163 schwarze 361: struct roffsu su;
362: const char *cp;
1.83 kristaps 363: size_t v;
1.163 schwarze 364: int less;
1.83 kristaps 365:
366: term_newln(p);
367:
1.203 schwarze 368: if (n->child == NULL) {
369: p->tcol->offset = mt->offset;
1.185 schwarze 370: return 0;
1.83 kristaps 371: }
372:
373: cp = n->child->string;
374: less = 0;
375:
1.227 schwarze 376: if (*cp == '-')
1.83 kristaps 377: less = -1;
1.227 schwarze 378: else if (*cp == '+')
1.83 kristaps 379: less = 1;
380: else
381: cp--;
382:
1.204 schwarze 383: if (a2roffsu(++cp, &su, SCALE_EN) == NULL)
1.185 schwarze 384: return 0;
1.83 kristaps 385:
1.205 schwarze 386: v = term_hen(p, &su);
1.83 kristaps 387:
388: if (less < 0)
1.203 schwarze 389: p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset;
1.83 kristaps 390: else if (less > 0)
1.203 schwarze 391: p->tcol->offset += v;
1.146 schwarze 392: else
1.203 schwarze 393: p->tcol->offset = v;
394: if (p->tcol->offset > SHRT_MAX)
395: p->tcol->offset = term_len(p, p->defindent);
1.19 kristaps 396:
1.199 schwarze 397: return 0;
398: }
399:
400: static int
401: pre_DT(DECL_ARGS)
402: {
403: term_tab_set(p, NULL);
404: term_tab_set(p, "T");
405: term_tab_set(p, ".5i");
1.185 schwarze 406: return 0;
1.15 kristaps 407: }
408:
409: static int
1.19 kristaps 410: pre_HP(DECL_ARGS)
411: {
1.163 schwarze 412: struct roffsu su;
1.172 schwarze 413: const struct roff_node *nn;
1.163 schwarze 414: int len;
1.19 kristaps 415:
1.20 kristaps 416: switch (n->type) {
1.171 schwarze 417: case ROFFT_BLOCK:
1.134 schwarze 418: print_bvspace(p, n, mt->pardist);
1.185 schwarze 419: return 1;
1.227 schwarze 420: case ROFFT_HEAD:
421: return 0;
1.171 schwarze 422: case ROFFT_BODY:
1.20 kristaps 423: break;
424: default:
1.227 schwarze 425: abort();
1.20 kristaps 426: }
427:
1.226 schwarze 428: if (n->child == NULL)
429: return 0;
430:
431: if ((n->child->flags & NODE_NOFILL) == 0) {
1.145 schwarze 432: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.139 schwarze 433: p->trailspace = 2;
1.130 schwarze 434: }
435:
1.24 kristaps 436: /* Calculate offset. */
437:
1.163 schwarze 438: if ((nn = n->parent->head->child) != NULL &&
1.204 schwarze 439: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.205 schwarze 440: len = term_hen(p, &su);
1.164 schwarze 441: if (len < 0 && (size_t)(-len) > mt->offset)
442: len = -mt->offset;
443: else if (len > SHRT_MAX)
444: len = term_len(p, p->defindent);
1.163 schwarze 445: mt->lmargin[mt->lmargincur] = len;
446: } else
447: len = mt->lmargin[mt->lmargincur];
1.24 kristaps 448:
1.203 schwarze 449: p->tcol->offset = mt->offset;
450: p->tcol->rmargin = mt->offset + len;
1.185 schwarze 451: return 1;
1.19 kristaps 452: }
453:
1.20 kristaps 454: static void
455: post_HP(DECL_ARGS)
456: {
457: switch (n->type) {
1.227 schwarze 458: case ROFFT_BLOCK:
459: case ROFFT_HEAD:
460: break;
1.171 schwarze 461: case ROFFT_BODY:
1.136 schwarze 462: term_newln(p);
1.174 schwarze 463:
464: /*
465: * Compatibility with a groff bug.
466: * The .HP macro uses the undocumented .tag request
467: * which causes a line break and cancels no-space
468: * mode even if there isn't any output.
469: */
470:
471: if (n->child == NULL)
472: term_vspace(p);
473:
1.145 schwarze 474: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.139 schwarze 475: p->trailspace = 0;
1.203 schwarze 476: p->tcol->offset = mt->offset;
477: p->tcol->rmargin = p->maxrmargin;
1.20 kristaps 478: break;
479: default:
1.227 schwarze 480: abort();
1.20 kristaps 481: }
482: }
483:
1.19 kristaps 484: static int
1.1 kristaps 485: pre_PP(DECL_ARGS)
486: {
1.19 kristaps 487: switch (n->type) {
1.171 schwarze 488: case ROFFT_BLOCK:
1.122 schwarze 489: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.134 schwarze 490: print_bvspace(p, n, mt->pardist);
1.19 kristaps 491: break;
1.227 schwarze 492: case ROFFT_HEAD:
493: return 0;
494: case ROFFT_BODY:
1.203 schwarze 495: p->tcol->offset = mt->offset;
1.19 kristaps 496: break;
1.227 schwarze 497: default:
498: abort();
1.19 kristaps 499: }
1.227 schwarze 500: return 1;
1.1 kristaps 501: }
502:
503: static int
1.4 kristaps 504: pre_IP(DECL_ARGS)
505: {
1.163 schwarze 506: struct roffsu su;
1.172 schwarze 507: const struct roff_node *nn;
1.225 schwarze 508: int len;
1.18 kristaps 509:
1.22 kristaps 510: switch (n->type) {
1.227 schwarze 511: case ROFFT_BLOCK:
512: print_bvspace(p, n, mt->pardist);
513: return 1;
1.171 schwarze 514: case ROFFT_HEAD:
1.22 kristaps 515: p->flags |= TERMP_NOBREAK;
1.139 schwarze 516: p->trailspace = 1;
1.22 kristaps 517: break;
1.227 schwarze 518: case ROFFT_BODY:
519: p->flags |= TERMP_NOSPACE;
520: break;
1.22 kristaps 521: default:
1.227 schwarze 522: abort();
1.22 kristaps 523: }
1.18 kristaps 524:
1.94 schwarze 525: /* Calculate the offset from the optional second argument. */
1.163 schwarze 526: if ((nn = n->parent->head->child) != NULL &&
527: (nn = nn->next) != NULL &&
1.204 schwarze 528: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.205 schwarze 529: len = term_hen(p, &su);
1.163 schwarze 530: if (len < 0 && (size_t)(-len) > mt->offset)
531: len = -mt->offset;
1.164 schwarze 532: else if (len > SHRT_MAX)
533: len = term_len(p, p->defindent);
534: mt->lmargin[mt->lmargincur] = len;
1.163 schwarze 535: } else
536: len = mt->lmargin[mt->lmargincur];
1.4 kristaps 537:
1.22 kristaps 538: switch (n->type) {
1.171 schwarze 539: case ROFFT_HEAD:
1.203 schwarze 540: p->tcol->offset = mt->offset;
541: p->tcol->rmargin = mt->offset + len;
1.231 schwarze 542: if (n->child != NULL) {
1.135 schwarze 543: print_man_node(p, mt, n->child, meta);
1.231 schwarze 544: tag_man(p, n->child);
545: }
1.185 schwarze 546: return 0;
1.171 schwarze 547: case ROFFT_BODY:
1.203 schwarze 548: p->tcol->offset = mt->offset + len;
549: p->tcol->rmargin = p->maxrmargin;
1.23 kristaps 550: break;
1.22 kristaps 551: default:
1.227 schwarze 552: abort();
1.18 kristaps 553: }
1.185 schwarze 554: return 1;
1.22 kristaps 555: }
1.18 kristaps 556:
1.22 kristaps 557: static void
558: post_IP(DECL_ARGS)
559: {
560: switch (n->type) {
1.227 schwarze 561: case ROFFT_BLOCK:
562: break;
1.171 schwarze 563: case ROFFT_HEAD:
1.22 kristaps 564: term_flushln(p);
565: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 566: p->trailspace = 0;
1.203 schwarze 567: p->tcol->rmargin = p->maxrmargin;
1.22 kristaps 568: break;
1.171 schwarze 569: case ROFFT_BODY:
1.94 schwarze 570: term_newln(p);
1.203 schwarze 571: p->tcol->offset = mt->offset;
1.22 kristaps 572: break;
573: default:
1.227 schwarze 574: abort();
1.22 kristaps 575: }
1.4 kristaps 576: }
577:
578: static int
1.1 kristaps 579: pre_TP(DECL_ARGS)
580: {
1.163 schwarze 581: struct roffsu su;
1.172 schwarze 582: struct roff_node *nn;
1.225 schwarze 583: int len;
1.1 kristaps 584:
1.21 kristaps 585: switch (n->type) {
1.227 schwarze 586: case ROFFT_BLOCK:
587: if (n->tok == MAN_TP)
588: print_bvspace(p, n, mt->pardist);
589: return 1;
1.171 schwarze 590: case ROFFT_HEAD:
1.184 schwarze 591: p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
1.139 schwarze 592: p->trailspace = 1;
1.21 kristaps 593: break;
1.171 schwarze 594: case ROFFT_BODY:
1.21 kristaps 595: p->flags |= TERMP_NOSPACE;
1.23 kristaps 596: break;
597: default:
1.227 schwarze 598: abort();
1.23 kristaps 599: }
600:
601: /* Calculate offset. */
602:
1.163 schwarze 603: if ((nn = n->parent->head->child) != NULL &&
1.188 schwarze 604: nn->string != NULL && ! (NODE_LINE & nn->flags) &&
1.204 schwarze 605: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.205 schwarze 606: len = term_hen(p, &su);
1.163 schwarze 607: if (len < 0 && (size_t)(-len) > mt->offset)
608: len = -mt->offset;
1.164 schwarze 609: else if (len > SHRT_MAX)
610: len = term_len(p, p->defindent);
611: mt->lmargin[mt->lmargincur] = len;
1.163 schwarze 612: } else
613: len = mt->lmargin[mt->lmargincur];
1.23 kristaps 614:
615: switch (n->type) {
1.171 schwarze 616: case ROFFT_HEAD:
1.203 schwarze 617: p->tcol->offset = mt->offset;
618: p->tcol->rmargin = mt->offset + len;
1.23 kristaps 619:
620: /* Don't print same-line elements. */
1.141 schwarze 621: nn = n->child;
1.227 schwarze 622: while (nn != NULL && (nn->flags & NODE_LINE) == 0)
1.141 schwarze 623: nn = nn->next;
1.232 schwarze 624:
625: if (nn == NULL)
626: return 0;
627:
628: if (nn->type == ROFFT_TEXT)
629: tag_man(p, nn);
630: else if (nn->child != NULL &&
631: nn->child->type == ROFFT_TEXT &&
632: (nn->tok == MAN_B || nn->tok == MAN_BI ||
633: nn->tok == MAN_BR || nn->tok == MAN_I ||
634: nn->tok == MAN_IB || nn->tok == MAN_IR))
635: tag_man(p, nn->child);
1.141 schwarze 636:
1.227 schwarze 637: while (nn != NULL) {
1.141 schwarze 638: print_man_node(p, mt, nn, meta);
639: nn = nn->next;
640: }
1.185 schwarze 641: return 0;
1.171 schwarze 642: case ROFFT_BODY:
1.203 schwarze 643: p->tcol->offset = mt->offset + len;
644: p->tcol->rmargin = p->maxrmargin;
1.139 schwarze 645: p->trailspace = 0;
1.184 schwarze 646: p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
1.21 kristaps 647: break;
648: default:
1.227 schwarze 649: abort();
1.21 kristaps 650: }
1.185 schwarze 651: return 1;
1.21 kristaps 652: }
1.1 kristaps 653:
1.21 kristaps 654: static void
655: post_TP(DECL_ARGS)
656: {
657: switch (n->type) {
1.227 schwarze 658: case ROFFT_BLOCK:
659: break;
1.171 schwarze 660: case ROFFT_HEAD:
1.21 kristaps 661: term_flushln(p);
662: break;
1.171 schwarze 663: case ROFFT_BODY:
1.94 schwarze 664: term_newln(p);
1.203 schwarze 665: p->tcol->offset = mt->offset;
1.21 kristaps 666: break;
667: default:
1.227 schwarze 668: abort();
1.21 kristaps 669: }
1.1 kristaps 670: }
671:
672: static int
673: pre_SS(DECL_ARGS)
674: {
1.134 schwarze 675: int i;
1.1 kristaps 676:
1.19 kristaps 677: switch (n->type) {
1.171 schwarze 678: case ROFFT_BLOCK:
1.122 schwarze 679: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
680: mt->offset = term_len(p, p->defindent);
1.158 schwarze 681:
682: /*
683: * No vertical space before the first subsection
684: * and after an empty subsection.
685: */
686:
1.234 ! schwarze 687: if ((n = roff_node_prev(n)) == NULL ||
! 688: (n->tok == MAN_SS && roff_node_child(n->body) == NULL))
1.24 kristaps 689: break;
1.158 schwarze 690:
1.134 schwarze 691: for (i = 0; i < mt->pardist; i++)
692: term_vspace(p);
1.19 kristaps 693: break;
1.171 schwarze 694: case ROFFT_HEAD:
1.52 kristaps 695: term_fontrepl(p, TERMFONT_BOLD);
1.203 schwarze 696: p->tcol->offset = term_len(p, 3);
697: p->tcol->rmargin = mt->offset;
1.176 schwarze 698: p->trailspace = mt->offset;
699: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.19 kristaps 700: break;
1.171 schwarze 701: case ROFFT_BODY:
1.203 schwarze 702: p->tcol->offset = mt->offset;
703: p->tcol->rmargin = p->maxrmargin;
1.176 schwarze 704: p->trailspace = 0;
705: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.24 kristaps 706: break;
1.19 kristaps 707: default:
708: break;
709: }
1.185 schwarze 710: return 1;
1.1 kristaps 711: }
712:
713: static int
714: pre_SH(DECL_ARGS)
715: {
1.134 schwarze 716: int i;
1.22 kristaps 717:
1.19 kristaps 718: switch (n->type) {
1.171 schwarze 719: case ROFFT_BLOCK:
1.122 schwarze 720: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
721: mt->offset = term_len(p, p->defindent);
1.158 schwarze 722:
723: /*
724: * No vertical space before the first section
725: * and after an empty section.
726: */
727:
1.234 ! schwarze 728: if ((n = roff_node_prev(n)) == NULL ||
! 729: (n->tok == MAN_SH && roff_node_child(n->body) == NULL))
1.61 kristaps 730: break;
1.158 schwarze 731:
1.134 schwarze 732: for (i = 0; i < mt->pardist; i++)
733: term_vspace(p);
1.19 kristaps 734: break;
1.171 schwarze 735: case ROFFT_HEAD:
1.52 kristaps 736: term_fontrepl(p, TERMFONT_BOLD);
1.203 schwarze 737: p->tcol->offset = 0;
738: p->tcol->rmargin = mt->offset;
1.176 schwarze 739: p->trailspace = mt->offset;
740: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.19 kristaps 741: break;
1.171 schwarze 742: case ROFFT_BODY:
1.203 schwarze 743: p->tcol->offset = mt->offset;
744: p->tcol->rmargin = p->maxrmargin;
1.176 schwarze 745: p->trailspace = 0;
746: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.19 kristaps 747: break;
748: default:
1.227 schwarze 749: abort();
1.19 kristaps 750: }
1.185 schwarze 751: return 1;
1.1 kristaps 752: }
753:
754: static void
755: post_SH(DECL_ARGS)
756: {
1.19 kristaps 757: switch (n->type) {
1.227 schwarze 758: case ROFFT_BLOCK:
759: break;
1.171 schwarze 760: case ROFFT_HEAD:
761: case ROFFT_BODY:
1.19 kristaps 762: term_newln(p);
763: break;
764: default:
1.227 schwarze 765: abort();
1.19 kristaps 766: }
1.1 kristaps 767: }
768:
1.26 kristaps 769: static int
770: pre_RS(DECL_ARGS)
771: {
1.163 schwarze 772: struct roffsu su;
1.26 kristaps 773:
774: switch (n->type) {
1.171 schwarze 775: case ROFFT_BLOCK:
1.26 kristaps 776: term_newln(p);
1.185 schwarze 777: return 1;
1.171 schwarze 778: case ROFFT_HEAD:
1.185 schwarze 779: return 0;
1.227 schwarze 780: case ROFFT_BODY:
781: break;
1.26 kristaps 782: default:
1.227 schwarze 783: abort();
1.26 kristaps 784: }
785:
1.165 schwarze 786: n = n->parent->head;
787: n->aux = SHRT_MAX + 1;
1.177 schwarze 788: if (n->child == NULL)
789: n->aux = mt->lmargin[mt->lmargincur];
1.204 schwarze 790: else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
1.205 schwarze 791: n->aux = term_hen(p, &su);
1.165 schwarze 792: if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
793: n->aux = -mt->offset;
794: else if (n->aux > SHRT_MAX)
795: n->aux = term_len(p, p->defindent);
1.26 kristaps 796:
1.165 schwarze 797: mt->offset += n->aux;
1.203 schwarze 798: p->tcol->offset = mt->offset;
799: p->tcol->rmargin = p->maxrmargin;
1.26 kristaps 800:
1.116 schwarze 801: if (++mt->lmarginsz < MAXMARGINS)
802: mt->lmargincur = mt->lmarginsz;
803:
1.178 schwarze 804: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.185 schwarze 805: return 1;
1.26 kristaps 806: }
807:
808: static void
809: post_RS(DECL_ARGS)
810: {
811: switch (n->type) {
1.171 schwarze 812: case ROFFT_BLOCK:
813: case ROFFT_HEAD:
1.110 kristaps 814: return;
1.227 schwarze 815: case ROFFT_BODY:
816: break;
1.26 kristaps 817: default:
1.227 schwarze 818: abort();
1.26 kristaps 819: }
1.227 schwarze 820: term_newln(p);
1.165 schwarze 821: mt->offset -= n->parent->head->aux;
1.203 schwarze 822: p->tcol->offset = mt->offset;
1.116 schwarze 823: if (--mt->lmarginsz < MAXMARGINS)
824: mt->lmargincur = mt->lmarginsz;
1.215 schwarze 825: }
826:
827: static int
828: pre_SY(DECL_ARGS)
829: {
830: const struct roff_node *nn;
831: int len;
832:
833: switch (n->type) {
834: case ROFFT_BLOCK:
1.234 ! schwarze 835: if ((nn = roff_node_prev(n)) == NULL || nn->tok != MAN_SY)
1.217 schwarze 836: print_bvspace(p, n, mt->pardist);
1.215 schwarze 837: return 1;
838: case ROFFT_HEAD:
839: case ROFFT_BODY:
840: break;
841: default:
842: abort();
843: }
844:
845: nn = n->parent->head->child;
1.219 schwarze 846: len = nn == NULL ? 1 : term_strlen(p, nn->string) + 1;
1.215 schwarze 847:
848: switch (n->type) {
849: case ROFFT_HEAD:
850: p->tcol->offset = mt->offset;
851: p->tcol->rmargin = mt->offset + len;
1.228 schwarze 852: if (n->next->child == NULL ||
853: (n->next->child->flags & NODE_NOFILL) == 0)
854: p->flags |= TERMP_NOBREAK;
1.215 schwarze 855: term_fontrepl(p, TERMFONT_BOLD);
856: break;
857: case ROFFT_BODY:
858: mt->lmargin[mt->lmargincur] = len;
859: p->tcol->offset = mt->offset + len;
860: p->tcol->rmargin = p->maxrmargin;
861: p->flags |= TERMP_NOSPACE;
862: break;
863: default:
864: abort();
865: }
866: return 1;
867: }
868:
869: static void
870: post_SY(DECL_ARGS)
871: {
872: switch (n->type) {
1.227 schwarze 873: case ROFFT_BLOCK:
874: break;
1.215 schwarze 875: case ROFFT_HEAD:
876: term_flushln(p);
877: p->flags &= ~TERMP_NOBREAK;
878: break;
879: case ROFFT_BODY:
880: term_newln(p);
881: p->tcol->offset = mt->offset;
882: break;
883: default:
1.227 schwarze 884: abort();
1.215 schwarze 885: }
1.137 schwarze 886: }
887:
888: static int
889: pre_UR(DECL_ARGS)
890: {
1.185 schwarze 891: return n->type != ROFFT_HEAD;
1.137 schwarze 892: }
893:
894: static void
895: post_UR(DECL_ARGS)
896: {
1.171 schwarze 897: if (n->type != ROFFT_BLOCK)
1.137 schwarze 898: return;
899:
900: term_word(p, "<");
901: p->flags |= TERMP_NOSPACE;
902:
1.227 schwarze 903: if (n->child->child != NULL)
1.137 schwarze 904: print_man_node(p, mt, n->child->child, meta);
905:
906: p->flags |= TERMP_NOSPACE;
907: term_word(p, ">");
1.26 kristaps 908: }
909:
1.1 kristaps 910: static void
1.45 kristaps 911: print_man_node(DECL_ARGS)
1.1 kristaps 912: {
1.214 schwarze 913: const struct man_term_act *act;
914: int c;
1.1 kristaps 915:
916: switch (n->type) {
1.171 schwarze 917: case ROFFT_TEXT:
1.97 kristaps 918: /*
919: * If we have a blank line, output a vertical space.
920: * If we have a space as the first character, break
921: * before printing the line's data.
922: */
1.200 schwarze 923: if (*n->string == '\0') {
1.207 schwarze 924: if (p->flags & TERMP_NONEWLINE)
925: term_newln(p);
926: else
927: term_vspace(p);
1.98 schwarze 928: return;
1.200 schwarze 929: } else if (*n->string == ' ' && n->flags & NODE_LINE &&
930: (p->flags & TERMP_NONEWLINE) == 0)
1.96 kristaps 931: term_newln(p);
1.212 schwarze 932: else if (n->flags & NODE_DELIMC)
933: p->flags |= TERMP_NOSPACE;
1.54 kristaps 934:
1.4 kristaps 935: term_word(p, n->string);
1.130 schwarze 936: goto out;
1.210 schwarze 937: case ROFFT_COMMENT:
938: return;
1.171 schwarze 939: case ROFFT_EQN:
1.188 schwarze 940: if ( ! (n->flags & NODE_LINE))
1.152 schwarze 941: p->flags |= TERMP_NOSPACE;
1.115 kristaps 942: term_eqn(p, n->eqn);
1.188 schwarze 943: if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.153 schwarze 944: p->flags |= TERMP_NOSPACE;
1.97 kristaps 945: return;
1.171 schwarze 946: case ROFFT_TBL:
1.169 schwarze 947: if (p->tbl.cols == NULL)
948: term_vspace(p);
1.92 kristaps 949: term_tbl(p, n->span);
1.97 kristaps 950: return;
1.1 kristaps 951: default:
952: break;
953: }
1.224 schwarze 954:
1.193 schwarze 955: if (n->tok < ROFF_MAX) {
1.194 schwarze 956: roff_term_pre(p, n);
1.193 schwarze 957: return;
958: }
959:
1.214 schwarze 960: act = man_term_act(n->tok);
1.220 schwarze 961: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.97 kristaps 962: term_fontrepl(p, TERMFONT_NONE);
963:
964: c = 1;
1.214 schwarze 965: if (act->pre != NULL)
966: c = (*act->pre)(p, mt, n, meta);
1.97 kristaps 967:
1.227 schwarze 968: if (c && n->child != NULL)
1.135 schwarze 969: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 970:
1.214 schwarze 971: if (act->post != NULL)
972: (*act->post)(p, mt, n, meta);
1.220 schwarze 973: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.97 kristaps 974: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 975:
1.130 schwarze 976: out:
977: /*
978: * If we're in a literal context, make sure that words
979: * together on the same line stay together. This is a
980: * POST-printing call, so we check the NEXT word. Since
981: * -man doesn't have nested macros, we don't need to be
982: * more specific than this.
983: */
1.225 schwarze 984: if (n->flags & NODE_NOFILL &&
1.157 schwarze 985: ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&
1.188 schwarze 986: (n->next == NULL || n->next->flags & NODE_LINE)) {
1.202 schwarze 987: p->flags |= TERMP_BRNEVER | TERMP_NOSPACE;
1.157 schwarze 988: if (n->string != NULL && *n->string != '\0')
1.130 schwarze 989: term_flushln(p);
990: else
991: term_newln(p);
1.202 schwarze 992: p->flags &= ~TERMP_BRNEVER;
1.203 schwarze 993: if (p->tcol->rmargin < p->maxrmargin &&
994: n->parent->tok == MAN_HP) {
995: p->tcol->offset = p->tcol->rmargin;
996: p->tcol->rmargin = p->maxrmargin;
1.202 schwarze 997: }
1.130 schwarze 998: }
1.227 schwarze 999: if (n->flags & NODE_EOS)
1.63 kristaps 1000: p->flags |= TERMP_SENTENCE;
1.1 kristaps 1001: }
1002:
1003: static void
1.52 kristaps 1004: print_man_nodelist(DECL_ARGS)
1.1 kristaps 1005: {
1.168 schwarze 1006: while (n != NULL) {
1007: print_man_node(p, mt, n, meta);
1008: n = n->next;
1009: }
1.1 kristaps 1010: }
1011:
1.31 kristaps 1012: static void
1.173 schwarze 1013: print_man_foot(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1014: {
1.147 schwarze 1015: char *title;
1.156 schwarze 1016: size_t datelen, titlen;
1.73 kristaps 1017:
1.125 schwarze 1018: assert(meta->title);
1019: assert(meta->msec);
1020: assert(meta->date);
1.1 kristaps 1021:
1.52 kristaps 1022: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 1023:
1.149 schwarze 1024: if (meta->hasbody)
1025: term_vspace(p);
1.126 schwarze 1026:
1027: /*
1028: * Temporary, undocumented option to imitate mdoc(7) output.
1.173 schwarze 1029: * In the bottom right corner, use the operating system
1030: * instead of the title.
1.126 schwarze 1031: */
1032:
1033: if ( ! p->mdocstyle) {
1.149 schwarze 1034: if (meta->hasbody) {
1035: term_vspace(p);
1036: term_vspace(p);
1037: }
1.147 schwarze 1038: mandoc_asprintf(&title, "%s(%s)",
1039: meta->title, meta->msec);
1.227 schwarze 1040: } else if (meta->os != NULL) {
1.173 schwarze 1041: title = mandoc_strdup(meta->os);
1.126 schwarze 1042: } else {
1.147 schwarze 1043: title = mandoc_strdup("");
1.126 schwarze 1044: }
1.125 schwarze 1045: datelen = term_strlen(p, meta->date);
1.1 kristaps 1046:
1.173 schwarze 1047: /* Bottom left corner: operating system. */
1.126 schwarze 1048:
1.1 kristaps 1049: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.139 schwarze 1050: p->trailspace = 1;
1.203 schwarze 1051: p->tcol->offset = 0;
1052: p->tcol->rmargin = p->maxrmargin > datelen ?
1.156 schwarze 1053: (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
1.1 kristaps 1054:
1.173 schwarze 1055: if (meta->os)
1056: term_word(p, meta->os);
1.1 kristaps 1057: term_flushln(p);
1058:
1.126 schwarze 1059: /* At the bottom in the middle: manual date. */
1060:
1.203 schwarze 1061: p->tcol->offset = p->tcol->rmargin;
1.156 schwarze 1062: titlen = term_strlen(p, title);
1.203 schwarze 1063: p->tcol->rmargin = p->maxrmargin > titlen ?
1064: p->maxrmargin - titlen : 0;
1.117 schwarze 1065: p->flags |= TERMP_NOSPACE;
1.123 schwarze 1066:
1.125 schwarze 1067: term_word(p, meta->date);
1.123 schwarze 1068: term_flushln(p);
1069:
1.126 schwarze 1070: /* Bottom right corner: manual title and section. */
1071:
1.123 schwarze 1072: p->flags &= ~TERMP_NOBREAK;
1073: p->flags |= TERMP_NOSPACE;
1.139 schwarze 1074: p->trailspace = 0;
1.203 schwarze 1075: p->tcol->offset = p->tcol->rmargin;
1076: p->tcol->rmargin = p->maxrmargin;
1.1 kristaps 1077:
1.123 schwarze 1078: term_word(p, title);
1.1 kristaps 1079: term_flushln(p);
1.211 schwarze 1080:
1081: /*
1082: * Reset the terminal state for more output after the footer:
1083: * Some output modes, in particular PostScript and PDF, print
1084: * the header and the footer into a buffer such that it can be
1085: * reused for multiple output pages, then go on to format the
1086: * main text.
1087: */
1088:
1089: p->tcol->offset = 0;
1090: p->flags = 0;
1091:
1.147 schwarze 1092: free(title);
1.1 kristaps 1093: }
1094:
1.31 kristaps 1095: static void
1.173 schwarze 1096: print_man_head(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1097: {
1.148 schwarze 1098: const char *volume;
1.147 schwarze 1099: char *title;
1.148 schwarze 1100: size_t vollen, titlen;
1.73 kristaps 1101:
1.135 schwarze 1102: assert(meta->title);
1103: assert(meta->msec);
1.1 kristaps 1104:
1.148 schwarze 1105: volume = NULL == meta->vol ? "" : meta->vol;
1106: vollen = term_strlen(p, volume);
1.1 kristaps 1107:
1.126 schwarze 1108: /* Top left corner: manual title and section. */
1109:
1.147 schwarze 1110: mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.77 kristaps 1111: titlen = term_strlen(p, title);
1.1 kristaps 1112:
1.118 schwarze 1113: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.139 schwarze 1114: p->trailspace = 1;
1.203 schwarze 1115: p->tcol->offset = 0;
1116: p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
1.148 schwarze 1117: (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.156 schwarze 1118: vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
1.1 kristaps 1119:
1120: term_word(p, title);
1121: term_flushln(p);
1122:
1.126 schwarze 1123: /* At the top in the middle: manual volume. */
1124:
1.117 schwarze 1125: p->flags |= TERMP_NOSPACE;
1.203 schwarze 1126: p->tcol->offset = p->tcol->rmargin;
1127: p->tcol->rmargin = p->tcol->offset + vollen + titlen <
1128: p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1129:
1.148 schwarze 1130: term_word(p, volume);
1.1 kristaps 1131: term_flushln(p);
1132:
1.126 schwarze 1133: /* Top right corner: title and section, again. */
1134:
1.1 kristaps 1135: p->flags &= ~TERMP_NOBREAK;
1.139 schwarze 1136: p->trailspace = 0;
1.203 schwarze 1137: if (p->tcol->rmargin + titlen <= p->maxrmargin) {
1.117 schwarze 1138: p->flags |= TERMP_NOSPACE;
1.203 schwarze 1139: p->tcol->offset = p->tcol->rmargin;
1140: p->tcol->rmargin = p->maxrmargin;
1.57 kristaps 1141: term_word(p, title);
1142: term_flushln(p);
1143: }
1.1 kristaps 1144:
1.118 schwarze 1145: p->flags &= ~TERMP_NOSPACE;
1.203 schwarze 1146: p->tcol->offset = 0;
1147: p->tcol->rmargin = p->maxrmargin;
1.61 kristaps 1148:
1.146 schwarze 1149: /*
1.126 schwarze 1150: * Groff prints three blank lines before the content.
1151: * Do the same, except in the temporary, undocumented
1152: * mode imitating mdoc(7) output.
1.62 kristaps 1153: */
1154:
1.61 kristaps 1155: term_vspace(p);
1.126 schwarze 1156: if ( ! p->mdocstyle) {
1157: term_vspace(p);
1158: term_vspace(p);
1159: }
1.147 schwarze 1160: free(title);
1.231 schwarze 1161: }
1162:
1163: /*
1164: * Skip leading whitespace, dashes, backslashes, and font escapes,
1165: * then create a tag if the first following byte is a letter.
1166: * Priority is high unless whitespace is present.
1167: */
1168: static void
1169: tag_man(struct termp *p, struct roff_node *n)
1170: {
1171: const char *cp, *arg;
1172: int prio, sz;
1173:
1174: assert(n->type == ROFFT_TEXT);
1175: cp = n->string;
1.233 schwarze 1176: prio = TAG_STRONG;
1.231 schwarze 1177: for (;;) {
1178: switch (*cp) {
1179: case ' ':
1180: case '\t':
1.233 schwarze 1181: prio = TAG_WEAK;
1.231 schwarze 1182: /* FALLTHROUGH */
1183: case '-':
1184: cp++;
1185: break;
1186: case '\\':
1187: cp++;
1188: switch (mandoc_escape(&cp, &arg, &sz)) {
1189: case ESCAPE_FONT:
1190: case ESCAPE_FONTROMAN:
1191: case ESCAPE_FONTITALIC:
1192: case ESCAPE_FONTBOLD:
1193: case ESCAPE_FONTPREV:
1194: case ESCAPE_FONTBI:
1195: break;
1196: case ESCAPE_SPECIAL:
1197: if (sz != 1)
1198: return;
1199: switch (*arg) {
1200: case '&':
1201: case '-':
1202: case 'e':
1203: break;
1204: default:
1205: return;
1206: }
1207: break;
1208: default:
1209: return;
1210: }
1211: break;
1212: default:
1213: if (isalpha((unsigned char)*cp))
1214: tag_put(cp, prio, p->line);
1215: return;
1216: }
1217: }
1.1 kristaps 1218: }
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