Annotation of src/usr.bin/mandoc/man_term.c, Revision 1.184
1.184 ! schwarze 1: /* $OpenBSD: man_term.c,v 1.183 2019/07/01 22:43:03 schwarze Exp $ */
1.1 kristaps 2: /*
1.84 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.179 schwarze 4: * Copyright (c) 2010-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.124 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.124 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.13 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
1.11 schwarze 21: #include <ctype.h>
1.117 schwarze 22: #include <limits.h>
1.1 kristaps 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
26:
1.124 schwarze 27: #include "mandoc_aux.h"
1.184 ! schwarze 28: #include "mandoc.h"
1.124 schwarze 29: #include "roff.h"
30: #include "man.h"
1.18 schwarze 31: #include "out.h"
1.1 kristaps 32: #include "term.h"
1.184 ! schwarze 33: #include "tag.h"
1.18 schwarze 34: #include "main.h"
1.10 schwarze 35:
1.70 schwarze 36: #define MAXMARGINS 64 /* maximum number of indented scopes */
1.1 kristaps 37:
1.11 schwarze 38: struct mtermp {
1.116 schwarze 39: int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */
1.70 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 */
1.88 schwarze 43: int pardist; /* vert. space before par., unit: [v] */
1.11 schwarze 44: };
45:
1.100 schwarze 46: #define DECL_ARGS struct termp *p, \
1.11 schwarze 47: struct mtermp *mt, \
1.125 schwarze 48: struct roff_node *n, \
1.126 schwarze 49: const struct roff_meta *meta
1.1 kristaps 50:
1.167 schwarze 51: struct man_term_act {
1.1 kristaps 52: int (*pre)(DECL_ARGS);
53: void (*post)(DECL_ARGS);
1.26 schwarze 54: int flags;
55: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 56: };
57:
1.21 schwarze 58: static void print_man_nodelist(DECL_ARGS);
1.19 schwarze 59: static void print_man_node(DECL_ARGS);
1.126 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 *);
1.100 schwarze 64: static void print_bvspace(struct termp *,
1.125 schwarze 65: const struct roff_node *, int);
1.18 schwarze 66:
1.1 kristaps 67: static int pre_B(DECL_ARGS);
1.152 schwarze 68: static int pre_DT(DECL_ARGS);
1.11 schwarze 69: static int pre_HP(DECL_ARGS);
1.1 kristaps 70: static int pre_I(DECL_ARGS);
71: static int pre_IP(DECL_ARGS);
1.82 schwarze 72: static int pre_OP(DECL_ARGS);
1.88 schwarze 73: static int pre_PD(DECL_ARGS);
1.1 kristaps 74: static int pre_PP(DECL_ARGS);
1.13 schwarze 75: static int pre_RS(DECL_ARGS);
1.1 kristaps 76: static int pre_SH(DECL_ARGS);
77: static int pre_SS(DECL_ARGS);
1.168 schwarze 78: static int pre_SY(DECL_ARGS);
1.1 kristaps 79: static int pre_TP(DECL_ARGS);
1.91 schwarze 80: static int pre_UR(DECL_ARGS);
1.174 schwarze 81: static int pre_abort(DECL_ARGS);
1.82 schwarze 82: static int pre_alternate(DECL_ARGS);
1.14 schwarze 83: static int pre_ign(DECL_ARGS);
1.45 schwarze 84: static int pre_in(DECL_ARGS);
85: static int pre_literal(DECL_ARGS);
1.1 kristaps 86:
1.11 schwarze 87: static void post_IP(DECL_ARGS);
88: static void post_HP(DECL_ARGS);
1.13 schwarze 89: static void post_RS(DECL_ARGS);
1.1 kristaps 90: static void post_SH(DECL_ARGS);
1.168 schwarze 91: static void post_SY(DECL_ARGS);
1.11 schwarze 92: static void post_TP(DECL_ARGS);
1.91 schwarze 93: static void post_UR(DECL_ARGS);
1.1 kristaps 94:
1.184 ! schwarze 95: static void tag_man(struct termp *, struct roff_node *);
! 96:
1.167 schwarze 97: static const struct man_term_act man_term_acts[MAN_MAX - MAN_TH] = {
1.26 schwarze 98: { NULL, NULL, 0 }, /* TH */
99: { pre_SH, post_SH, 0 }, /* SH */
1.180 schwarze 100: { pre_SS, post_SH, 0 }, /* SS */
1.26 schwarze 101: { pre_TP, post_TP, 0 }, /* TP */
1.166 schwarze 102: { pre_TP, post_TP, 0 }, /* TQ */
1.174 schwarze 103: { pre_abort, NULL, 0 }, /* LP */
1.26 schwarze 104: { pre_PP, NULL, 0 }, /* PP */
1.174 schwarze 105: { pre_abort, NULL, 0 }, /* P */
1.26 schwarze 106: { pre_IP, post_IP, 0 }, /* IP */
1.100 schwarze 107: { pre_HP, post_HP, 0 }, /* HP */
1.26 schwarze 108: { NULL, NULL, 0 }, /* SM */
109: { pre_B, NULL, 0 }, /* SB */
1.51 schwarze 110: { pre_alternate, NULL, 0 }, /* BI */
111: { pre_alternate, NULL, 0 }, /* IB */
112: { pre_alternate, NULL, 0 }, /* BR */
113: { pre_alternate, NULL, 0 }, /* RB */
1.26 schwarze 114: { NULL, NULL, 0 }, /* R */
115: { pre_B, NULL, 0 }, /* B */
116: { pre_I, NULL, 0 }, /* I */
1.51 schwarze 117: { pre_alternate, NULL, 0 }, /* IR */
118: { pre_alternate, NULL, 0 }, /* RI */
1.26 schwarze 119: { NULL, NULL, 0 }, /* RE */
120: { pre_RS, post_RS, 0 }, /* RS */
1.152 schwarze 121: { pre_DT, NULL, 0 }, /* DT */
1.111 schwarze 122: { pre_ign, NULL, MAN_NOTEXT }, /* UC */
1.88 schwarze 123: { pre_PD, NULL, MAN_NOTEXT }, /* PD */
1.36 schwarze 124: { pre_ign, NULL, 0 }, /* AT */
1.45 schwarze 125: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.168 schwarze 126: { pre_SY, post_SY, 0 }, /* SY */
127: { NULL, NULL, 0 }, /* YS */
1.82 schwarze 128: { pre_OP, NULL, 0 }, /* OP */
1.83 schwarze 129: { pre_literal, NULL, 0 }, /* EX */
130: { pre_literal, NULL, 0 }, /* EE */
1.91 schwarze 131: { pre_UR, post_UR, 0 }, /* UR */
132: { NULL, NULL, 0 }, /* UE */
1.161 bentley 133: { pre_UR, post_UR, 0 }, /* MT */
134: { NULL, NULL, 0 }, /* ME */
1.1 kristaps 135: };
1.167 schwarze 136: static const struct man_term_act *man_term_act(enum roff_tok);
1.11 schwarze 137:
1.1 kristaps 138:
1.167 schwarze 139: static const struct man_term_act *
140: man_term_act(enum roff_tok tok)
141: {
142: assert(tok >= MAN_TH && tok <= MAN_MAX);
143: return man_term_acts + (tok - MAN_TH);
144: }
145:
1.16 schwarze 146: void
1.176 schwarze 147: terminal_man(void *arg, const struct roff_meta *man)
1.1 kristaps 148: {
1.180 schwarze 149: struct mtermp mt;
1.18 schwarze 150: struct termp *p;
1.182 schwarze 151: struct roff_node *n, *nc, *nn;
1.142 schwarze 152: size_t save_defindent;
1.18 schwarze 153:
154: p = (struct termp *)arg;
1.159 schwarze 155: save_defindent = p->defindent;
156: if (p->synopsisonly == 0 && p->defindent == 0)
157: p->defindent = 7;
1.156 schwarze 158: p->tcol->rmargin = p->maxrmargin = p->defrmargin;
1.151 schwarze 159: term_tab_set(p, NULL);
160: term_tab_set(p, "T");
161: term_tab_set(p, ".5i");
1.18 schwarze 162:
1.180 schwarze 163: memset(&mt, 0, sizeof(mt));
1.77 schwarze 164: mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
165: mt.offset = term_len(p, p->defindent);
1.88 schwarze 166: mt.pardist = 1;
1.11 schwarze 167:
1.134 schwarze 168: n = man->first->child;
1.104 schwarze 169: if (p->synopsisonly) {
1.182 schwarze 170: for (nn = NULL; n != NULL; n = n->next) {
171: if (n->tok != MAN_SH)
172: continue;
173: nc = n->child->child;
174: if (nc->type != ROFFT_TEXT)
175: continue;
176: if (strcmp(nc->string, "SYNOPSIS") == 0)
1.104 schwarze 177: break;
1.182 schwarze 178: if (nn == NULL && strcmp(nc->string, "NAME") == 0)
179: nn = n;
1.104 schwarze 180: }
1.182 schwarze 181: if (n == NULL)
182: n = nn;
183: p->flags |= TERMP_NOSPACE;
184: if (n != NULL && (n = n->child->next->child) != NULL)
185: print_man_nodelist(p, &mt, n, man);
186: term_newln(p);
1.104 schwarze 187: } else {
1.176 schwarze 188: term_begin(p, print_man_head, print_man_foot, man);
1.104 schwarze 189: p->flags |= TERMP_NOSPACE;
190: if (n != NULL)
1.176 schwarze 191: print_man_nodelist(p, &mt, n, man);
1.104 schwarze 192: term_end(p);
193: }
1.159 schwarze 194: p->defindent = save_defindent;
1.1 kristaps 195: }
196:
1.69 schwarze 197: /*
198: * Printing leading vertical space before a block.
199: * This is used for the paragraph macros.
200: * The rules are pretty simple, since there's very little nesting going
201: * on here. Basically, if we're the first within another block (SS/SH),
202: * then don't emit vertical space. If we are (RS), then do. If not the
203: * first, print it.
204: */
1.18 schwarze 205: static void
1.125 schwarze 206: print_bvspace(struct termp *p, const struct roff_node *n, int pardist)
1.18 schwarze 207: {
1.88 schwarze 208: int i;
1.69 schwarze 209:
1.18 schwarze 210: term_newln(p);
1.64 schwarze 211:
1.180 schwarze 212: if (n->body != NULL && n->body->child != NULL)
1.124 schwarze 213: if (n->body->child->type == ROFFT_TBL)
1.69 schwarze 214: return;
1.11 schwarze 215:
1.124 schwarze 216: if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)
1.180 schwarze 217: if (n->prev == NULL)
1.69 schwarze 218: return;
1.11 schwarze 219:
1.88 schwarze 220: for (i = 0; i < pardist; i++)
221: term_vspace(p);
1.14 schwarze 222: }
223:
1.174 schwarze 224:
225: static int
226: pre_abort(DECL_ARGS)
227: {
228: abort();
229: }
1.100 schwarze 230:
1.14 schwarze 231: static int
232: pre_ign(DECL_ARGS)
233: {
1.138 schwarze 234: return 0;
1.11 schwarze 235: }
236:
1.1 kristaps 237: static int
238: pre_I(DECL_ARGS)
239: {
1.21 schwarze 240: term_fontrepl(p, TERMFONT_UNDER);
1.138 schwarze 241: return 1;
1.1 kristaps 242: }
243:
1.11 schwarze 244: static int
1.45 schwarze 245: pre_literal(DECL_ARGS)
1.11 schwarze 246: {
1.45 schwarze 247: term_newln(p);
1.53 schwarze 248:
1.72 schwarze 249: /*
250: * Unlike .IP and .TP, .HP does not have a HEAD.
251: * So in case a second call to term_flushln() is needed,
252: * indentation has to be set up explicitly.
253: */
1.156 schwarze 254: if (n->parent->tok == MAN_HP && p->tcol->rmargin < p->maxrmargin) {
255: p->tcol->offset = p->tcol->rmargin;
256: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 257: p->trailspace = 0;
1.99 schwarze 258: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.72 schwarze 259: p->flags |= TERMP_NOSPACE;
260: }
1.138 schwarze 261: return 0;
1.11 schwarze 262: }
263:
264: static int
1.88 schwarze 265: pre_PD(DECL_ARGS)
266: {
1.113 schwarze 267: struct roffsu su;
1.88 schwarze 268:
269: n = n->child;
1.113 schwarze 270: if (n == NULL) {
1.88 schwarze 271: mt->pardist = 1;
1.138 schwarze 272: return 0;
1.88 schwarze 273: }
1.124 schwarze 274: assert(n->type == ROFFT_TEXT);
1.157 schwarze 275: if (a2roffsu(n->string, &su, SCALE_VS) != NULL)
1.113 schwarze 276: mt->pardist = term_vspan(p, &su);
1.138 schwarze 277: return 0;
1.88 schwarze 278: }
279:
280: static int
1.51 schwarze 281: pre_alternate(DECL_ARGS)
1.1 kristaps 282: {
1.51 schwarze 283: enum termfont font[2];
1.125 schwarze 284: struct roff_node *nn;
1.178 schwarze 285: int i;
1.1 kristaps 286:
1.51 schwarze 287: switch (n->tok) {
1.100 schwarze 288: case MAN_RB:
1.51 schwarze 289: font[0] = TERMFONT_NONE;
290: font[1] = TERMFONT_BOLD;
291: break;
1.100 schwarze 292: case MAN_RI:
1.51 schwarze 293: font[0] = TERMFONT_NONE;
294: font[1] = TERMFONT_UNDER;
295: break;
1.100 schwarze 296: case MAN_BR:
1.51 schwarze 297: font[0] = TERMFONT_BOLD;
298: font[1] = TERMFONT_NONE;
299: break;
1.100 schwarze 300: case MAN_BI:
1.51 schwarze 301: font[0] = TERMFONT_BOLD;
302: font[1] = TERMFONT_UNDER;
303: break;
1.100 schwarze 304: case MAN_IR:
1.51 schwarze 305: font[0] = TERMFONT_UNDER;
306: font[1] = TERMFONT_NONE;
307: break;
1.100 schwarze 308: case MAN_IB:
1.51 schwarze 309: font[0] = TERMFONT_UNDER;
310: font[1] = TERMFONT_BOLD;
311: break;
312: default:
313: abort();
314: }
1.178 schwarze 315: for (i = 0, nn = n->child; nn != NULL; nn = nn->next, i = 1 - i) {
1.51 schwarze 316: term_fontrepl(p, font[i]);
1.132 schwarze 317: assert(nn->type == ROFFT_TEXT);
318: term_word(p, nn->string);
1.141 schwarze 319: if (nn->flags & NODE_EOS)
1.183 schwarze 320: p->flags |= TERMP_SENTENCE;
1.180 schwarze 321: if (nn->next != NULL)
1.1 kristaps 322: p->flags |= TERMP_NOSPACE;
323: }
1.138 schwarze 324: return 0;
1.1 kristaps 325: }
326:
327: static int
328: pre_B(DECL_ARGS)
329: {
1.21 schwarze 330: term_fontrepl(p, TERMFONT_BOLD);
1.138 schwarze 331: return 1;
1.82 schwarze 332: }
333:
334: static int
335: pre_OP(DECL_ARGS)
336: {
337: term_word(p, "[");
1.169 schwarze 338: p->flags |= TERMP_KEEP | TERMP_NOSPACE;
1.82 schwarze 339:
1.180 schwarze 340: if ((n = n->child) != NULL) {
1.82 schwarze 341: term_fontrepl(p, TERMFONT_BOLD);
342: term_word(p, n->string);
343: }
1.180 schwarze 344: if (n != NULL && n->next != NULL) {
1.82 schwarze 345: term_fontrepl(p, TERMFONT_UNDER);
346: term_word(p, n->next->string);
347: }
348: term_fontrepl(p, TERMFONT_NONE);
1.169 schwarze 349: p->flags &= ~TERMP_KEEP;
1.82 schwarze 350: p->flags |= TERMP_NOSPACE;
351: term_word(p, "]");
1.138 schwarze 352: return 0;
1.1 kristaps 353: }
354:
355: static int
1.45 schwarze 356: pre_in(DECL_ARGS)
1.11 schwarze 357: {
1.116 schwarze 358: struct roffsu su;
359: const char *cp;
1.45 schwarze 360: size_t v;
1.116 schwarze 361: int less;
1.45 schwarze 362:
363: term_newln(p);
364:
1.156 schwarze 365: if (n->child == NULL) {
366: p->tcol->offset = mt->offset;
1.138 schwarze 367: return 0;
1.45 schwarze 368: }
1.11 schwarze 369:
1.45 schwarze 370: cp = n->child->string;
371: less = 0;
1.11 schwarze 372:
1.180 schwarze 373: if (*cp == '-')
1.45 schwarze 374: less = -1;
1.180 schwarze 375: else if (*cp == '+')
1.45 schwarze 376: less = 1;
377: else
378: cp--;
379:
1.157 schwarze 380: if (a2roffsu(++cp, &su, SCALE_EN) == NULL)
1.138 schwarze 381: return 0;
1.45 schwarze 382:
1.158 schwarze 383: v = term_hen(p, &su);
1.45 schwarze 384:
385: if (less < 0)
1.156 schwarze 386: p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset;
1.45 schwarze 387: else if (less > 0)
1.156 schwarze 388: p->tcol->offset += v;
1.100 schwarze 389: else
1.156 schwarze 390: p->tcol->offset = v;
391: if (p->tcol->offset > SHRT_MAX)
392: p->tcol->offset = term_len(p, p->defindent);
1.8 schwarze 393:
1.152 schwarze 394: return 0;
395: }
396:
397: static int
398: pre_DT(DECL_ARGS)
399: {
400: term_tab_set(p, NULL);
401: term_tab_set(p, "T");
402: term_tab_set(p, ".5i");
1.138 schwarze 403: return 0;
1.8 schwarze 404: }
405:
406: static int
1.11 schwarze 407: pre_HP(DECL_ARGS)
408: {
1.116 schwarze 409: struct roffsu su;
1.125 schwarze 410: const struct roff_node *nn;
1.116 schwarze 411: int len;
1.11 schwarze 412:
413: switch (n->type) {
1.124 schwarze 414: case ROFFT_BLOCK:
1.88 schwarze 415: print_bvspace(p, n, mt->pardist);
1.138 schwarze 416: return 1;
1.180 schwarze 417: case ROFFT_HEAD:
418: return 0;
1.124 schwarze 419: case ROFFT_BODY:
1.11 schwarze 420: break;
421: default:
1.180 schwarze 422: abort();
1.11 schwarze 423: }
424:
1.179 schwarze 425: if (n->child == NULL)
426: return 0;
427:
428: if ((n->child->flags & NODE_NOFILL) == 0) {
1.99 schwarze 429: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.93 schwarze 430: p->trailspace = 2;
1.84 schwarze 431: }
432:
1.11 schwarze 433: /* Calculate offset. */
434:
1.116 schwarze 435: if ((nn = n->parent->head->child) != NULL &&
1.157 schwarze 436: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 437: len = term_hen(p, &su);
1.117 schwarze 438: if (len < 0 && (size_t)(-len) > mt->offset)
439: len = -mt->offset;
440: else if (len > SHRT_MAX)
441: len = term_len(p, p->defindent);
1.116 schwarze 442: mt->lmargin[mt->lmargincur] = len;
443: } else
444: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 445:
1.156 schwarze 446: p->tcol->offset = mt->offset;
447: p->tcol->rmargin = mt->offset + len;
1.138 schwarze 448: return 1;
1.11 schwarze 449: }
450:
451: static void
452: post_HP(DECL_ARGS)
453: {
454: switch (n->type) {
1.180 schwarze 455: case ROFFT_BLOCK:
456: case ROFFT_HEAD:
457: break;
1.124 schwarze 458: case ROFFT_BODY:
1.90 schwarze 459: term_newln(p);
1.127 schwarze 460:
461: /*
462: * Compatibility with a groff bug.
463: * The .HP macro uses the undocumented .tag request
464: * which causes a line break and cancels no-space
465: * mode even if there isn't any output.
466: */
467:
468: if (n->child == NULL)
469: term_vspace(p);
470:
1.99 schwarze 471: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.93 schwarze 472: p->trailspace = 0;
1.156 schwarze 473: p->tcol->offset = mt->offset;
474: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 475: break;
476: default:
1.180 schwarze 477: abort();
1.11 schwarze 478: }
479: }
480:
481: static int
1.1 kristaps 482: pre_PP(DECL_ARGS)
483: {
1.11 schwarze 484: switch (n->type) {
1.124 schwarze 485: case ROFFT_BLOCK:
1.77 schwarze 486: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.88 schwarze 487: print_bvspace(p, n, mt->pardist);
1.11 schwarze 488: break;
1.180 schwarze 489: case ROFFT_HEAD:
490: return 0;
491: case ROFFT_BODY:
1.156 schwarze 492: p->tcol->offset = mt->offset;
1.11 schwarze 493: break;
1.180 schwarze 494: default:
495: abort();
1.11 schwarze 496: }
1.180 schwarze 497: return 1;
1.1 kristaps 498: }
499:
500: static int
501: pre_IP(DECL_ARGS)
502: {
1.116 schwarze 503: struct roffsu su;
1.125 schwarze 504: const struct roff_node *nn;
1.178 schwarze 505: int len;
1.11 schwarze 506:
507: switch (n->type) {
1.180 schwarze 508: case ROFFT_BLOCK:
509: print_bvspace(p, n, mt->pardist);
510: return 1;
1.124 schwarze 511: case ROFFT_HEAD:
1.11 schwarze 512: p->flags |= TERMP_NOBREAK;
1.93 schwarze 513: p->trailspace = 1;
1.11 schwarze 514: break;
1.180 schwarze 515: case ROFFT_BODY:
516: p->flags |= TERMP_NOSPACE;
517: break;
1.11 schwarze 518: default:
1.180 schwarze 519: abort();
1.11 schwarze 520: }
521:
1.57 schwarze 522: /* Calculate the offset from the optional second argument. */
1.116 schwarze 523: if ((nn = n->parent->head->child) != NULL &&
524: (nn = nn->next) != NULL &&
1.157 schwarze 525: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 526: len = term_hen(p, &su);
1.116 schwarze 527: if (len < 0 && (size_t)(-len) > mt->offset)
528: len = -mt->offset;
1.117 schwarze 529: else if (len > SHRT_MAX)
530: len = term_len(p, p->defindent);
531: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 532: } else
533: len = mt->lmargin[mt->lmargincur];
1.11 schwarze 534:
535: switch (n->type) {
1.124 schwarze 536: case ROFFT_HEAD:
1.156 schwarze 537: p->tcol->offset = mt->offset;
538: p->tcol->rmargin = mt->offset + len;
1.184 ! schwarze 539: if (n->child != NULL) {
1.89 schwarze 540: print_man_node(p, mt, n->child, meta);
1.184 ! schwarze 541: tag_man(p, n->child);
! 542: }
1.138 schwarze 543: return 0;
1.124 schwarze 544: case ROFFT_BODY:
1.156 schwarze 545: p->tcol->offset = mt->offset + len;
546: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 547: break;
548: default:
1.180 schwarze 549: abort();
1.11 schwarze 550: }
1.138 schwarze 551: return 1;
1.11 schwarze 552: }
1.1 kristaps 553:
1.11 schwarze 554: static void
555: post_IP(DECL_ARGS)
556: {
557: switch (n->type) {
1.180 schwarze 558: case ROFFT_BLOCK:
559: break;
1.124 schwarze 560: case ROFFT_HEAD:
1.11 schwarze 561: term_flushln(p);
562: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 563: p->trailspace = 0;
1.156 schwarze 564: p->tcol->rmargin = p->maxrmargin;
1.11 schwarze 565: break;
1.124 schwarze 566: case ROFFT_BODY:
1.57 schwarze 567: term_newln(p);
1.156 schwarze 568: p->tcol->offset = mt->offset;
1.11 schwarze 569: break;
570: default:
1.180 schwarze 571: abort();
1.11 schwarze 572: }
1.1 kristaps 573: }
574:
575: static int
576: pre_TP(DECL_ARGS)
577: {
1.116 schwarze 578: struct roffsu su;
1.125 schwarze 579: struct roff_node *nn;
1.178 schwarze 580: int len;
1.11 schwarze 581:
582: switch (n->type) {
1.180 schwarze 583: case ROFFT_BLOCK:
584: if (n->tok == MAN_TP)
585: print_bvspace(p, n, mt->pardist);
586: return 1;
1.124 schwarze 587: case ROFFT_HEAD:
1.137 schwarze 588: p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
1.93 schwarze 589: p->trailspace = 1;
1.11 schwarze 590: break;
1.124 schwarze 591: case ROFFT_BODY:
1.11 schwarze 592: p->flags |= TERMP_NOSPACE;
593: break;
594: default:
1.180 schwarze 595: abort();
1.11 schwarze 596: }
597:
598: /* Calculate offset. */
1.1 kristaps 599:
1.116 schwarze 600: if ((nn = n->parent->head->child) != NULL &&
1.141 schwarze 601: nn->string != NULL && ! (NODE_LINE & nn->flags) &&
1.157 schwarze 602: a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
1.158 schwarze 603: len = term_hen(p, &su);
1.116 schwarze 604: if (len < 0 && (size_t)(-len) > mt->offset)
605: len = -mt->offset;
1.117 schwarze 606: else if (len > SHRT_MAX)
607: len = term_len(p, p->defindent);
608: mt->lmargin[mt->lmargincur] = len;
1.116 schwarze 609: } else
610: len = mt->lmargin[mt->lmargincur];
1.8 schwarze 611:
1.11 schwarze 612: switch (n->type) {
1.124 schwarze 613: case ROFFT_HEAD:
1.156 schwarze 614: p->tcol->offset = mt->offset;
615: p->tcol->rmargin = mt->offset + len;
1.11 schwarze 616:
617: /* Don't print same-line elements. */
1.95 schwarze 618: nn = n->child;
1.180 schwarze 619: while (nn != NULL && (nn->flags & NODE_LINE) == 0)
1.95 schwarze 620: nn = nn->next;
621:
1.180 schwarze 622: while (nn != NULL) {
1.95 schwarze 623: print_man_node(p, mt, nn, meta);
624: nn = nn->next;
625: }
1.138 schwarze 626: return 0;
1.124 schwarze 627: case ROFFT_BODY:
1.156 schwarze 628: p->tcol->offset = mt->offset + len;
629: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 630: p->trailspace = 0;
1.137 schwarze 631: p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
1.11 schwarze 632: break;
633: default:
1.180 schwarze 634: abort();
1.11 schwarze 635: }
1.138 schwarze 636: return 1;
1.11 schwarze 637: }
1.1 kristaps 638:
1.11 schwarze 639: static void
640: post_TP(DECL_ARGS)
641: {
642: switch (n->type) {
1.180 schwarze 643: case ROFFT_BLOCK:
644: break;
1.124 schwarze 645: case ROFFT_HEAD:
1.11 schwarze 646: term_flushln(p);
647: break;
1.124 schwarze 648: case ROFFT_BODY:
1.57 schwarze 649: term_newln(p);
1.156 schwarze 650: p->tcol->offset = mt->offset;
1.11 schwarze 651: break;
652: default:
1.180 schwarze 653: abort();
1.11 schwarze 654: }
1.1 kristaps 655: }
656:
657: static int
658: pre_SS(DECL_ARGS)
659: {
1.88 schwarze 660: int i;
1.1 kristaps 661:
1.11 schwarze 662: switch (n->type) {
1.124 schwarze 663: case ROFFT_BLOCK:
1.77 schwarze 664: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
665: mt->offset = term_len(p, p->defindent);
1.111 schwarze 666:
667: /*
668: * No vertical space before the first subsection
669: * and after an empty subsection.
670: */
671:
672: do {
673: n = n->prev;
1.162 schwarze 674: } while (n != NULL && n->tok >= MAN_TH &&
1.167 schwarze 675: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.163 schwarze 676: if (n == NULL || n->type == ROFFT_COMMENT ||
677: (n->tok == MAN_SS && n->body->child == NULL))
1.11 schwarze 678: break;
1.111 schwarze 679:
1.88 schwarze 680: for (i = 0; i < mt->pardist; i++)
681: term_vspace(p);
1.11 schwarze 682: break;
1.124 schwarze 683: case ROFFT_HEAD:
1.21 schwarze 684: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 685: p->tcol->offset = term_len(p, 3);
686: p->tcol->rmargin = mt->offset;
1.129 schwarze 687: p->trailspace = mt->offset;
688: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 689: break;
1.124 schwarze 690: case ROFFT_BODY:
1.156 schwarze 691: p->tcol->offset = mt->offset;
692: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 693: p->trailspace = 0;
694: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 695: break;
696: default:
697: break;
698: }
1.138 schwarze 699: return 1;
1.1 kristaps 700: }
701:
702: static int
703: pre_SH(DECL_ARGS)
704: {
1.88 schwarze 705: int i;
1.1 kristaps 706:
1.11 schwarze 707: switch (n->type) {
1.124 schwarze 708: case ROFFT_BLOCK:
1.77 schwarze 709: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
710: mt->offset = term_len(p, p->defindent);
1.111 schwarze 711:
712: /*
713: * No vertical space before the first section
714: * and after an empty section.
715: */
716:
717: do {
718: n = n->prev;
1.162 schwarze 719: } while (n != NULL && n->tok >= MAN_TH &&
1.167 schwarze 720: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.163 schwarze 721: if (n == NULL || n->type == ROFFT_COMMENT ||
722: (n->tok == MAN_SH && n->body->child == NULL))
1.29 schwarze 723: break;
1.111 schwarze 724:
1.88 schwarze 725: for (i = 0; i < mt->pardist; i++)
726: term_vspace(p);
1.11 schwarze 727: break;
1.124 schwarze 728: case ROFFT_HEAD:
1.21 schwarze 729: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 730: p->tcol->offset = 0;
731: p->tcol->rmargin = mt->offset;
1.129 schwarze 732: p->trailspace = mt->offset;
733: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 734: break;
1.124 schwarze 735: case ROFFT_BODY:
1.156 schwarze 736: p->tcol->offset = mt->offset;
737: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 738: p->trailspace = 0;
739: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 740: break;
741: default:
1.180 schwarze 742: abort();
1.11 schwarze 743: }
1.138 schwarze 744: return 1;
1.1 kristaps 745: }
746:
747: static void
748: post_SH(DECL_ARGS)
749: {
1.11 schwarze 750: switch (n->type) {
1.180 schwarze 751: case ROFFT_BLOCK:
752: break;
1.124 schwarze 753: case ROFFT_HEAD:
754: case ROFFT_BODY:
1.11 schwarze 755: term_newln(p);
756: break;
757: default:
1.180 schwarze 758: abort();
1.13 schwarze 759: }
760: }
761:
762: static int
763: pre_RS(DECL_ARGS)
764: {
1.116 schwarze 765: struct roffsu su;
1.13 schwarze 766:
767: switch (n->type) {
1.124 schwarze 768: case ROFFT_BLOCK:
1.13 schwarze 769: term_newln(p);
1.138 schwarze 770: return 1;
1.124 schwarze 771: case ROFFT_HEAD:
1.138 schwarze 772: return 0;
1.180 schwarze 773: case ROFFT_BODY:
774: break;
1.13 schwarze 775: default:
1.180 schwarze 776: abort();
1.13 schwarze 777: }
778:
1.118 schwarze 779: n = n->parent->head;
780: n->aux = SHRT_MAX + 1;
1.130 schwarze 781: if (n->child == NULL)
782: n->aux = mt->lmargin[mt->lmargincur];
1.157 schwarze 783: else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
1.158 schwarze 784: n->aux = term_hen(p, &su);
1.118 schwarze 785: if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
786: n->aux = -mt->offset;
787: else if (n->aux > SHRT_MAX)
788: n->aux = term_len(p, p->defindent);
1.13 schwarze 789:
1.118 schwarze 790: mt->offset += n->aux;
1.156 schwarze 791: p->tcol->offset = mt->offset;
792: p->tcol->rmargin = p->maxrmargin;
1.13 schwarze 793:
1.70 schwarze 794: if (++mt->lmarginsz < MAXMARGINS)
795: mt->lmargincur = mt->lmarginsz;
796:
1.131 schwarze 797: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.138 schwarze 798: return 1;
1.13 schwarze 799: }
800:
801: static void
802: post_RS(DECL_ARGS)
803: {
804: switch (n->type) {
1.124 schwarze 805: case ROFFT_BLOCK:
806: case ROFFT_HEAD:
1.69 schwarze 807: return;
1.180 schwarze 808: case ROFFT_BODY:
809: break;
1.13 schwarze 810: default:
1.180 schwarze 811: abort();
1.11 schwarze 812: }
1.180 schwarze 813: term_newln(p);
1.118 schwarze 814: mt->offset -= n->parent->head->aux;
1.156 schwarze 815: p->tcol->offset = mt->offset;
1.70 schwarze 816: if (--mt->lmarginsz < MAXMARGINS)
817: mt->lmargincur = mt->lmarginsz;
1.168 schwarze 818: }
819:
820: static int
821: pre_SY(DECL_ARGS)
822: {
823: const struct roff_node *nn;
824: int len;
825:
826: switch (n->type) {
827: case ROFFT_BLOCK:
1.170 schwarze 828: if (n->prev == NULL || n->prev->tok != MAN_SY)
829: print_bvspace(p, n, mt->pardist);
1.168 schwarze 830: return 1;
831: case ROFFT_HEAD:
832: case ROFFT_BODY:
833: break;
834: default:
835: abort();
836: }
837:
838: nn = n->parent->head->child;
1.172 schwarze 839: len = nn == NULL ? 1 : term_strlen(p, nn->string) + 1;
1.168 schwarze 840:
841: switch (n->type) {
842: case ROFFT_HEAD:
843: p->tcol->offset = mt->offset;
844: p->tcol->rmargin = mt->offset + len;
1.181 schwarze 845: if (n->next->child == NULL ||
846: (n->next->child->flags & NODE_NOFILL) == 0)
847: p->flags |= TERMP_NOBREAK;
1.168 schwarze 848: term_fontrepl(p, TERMFONT_BOLD);
849: break;
850: case ROFFT_BODY:
851: mt->lmargin[mt->lmargincur] = len;
852: p->tcol->offset = mt->offset + len;
853: p->tcol->rmargin = p->maxrmargin;
854: p->flags |= TERMP_NOSPACE;
855: break;
856: default:
857: abort();
858: }
859: return 1;
860: }
861:
862: static void
863: post_SY(DECL_ARGS)
864: {
865: switch (n->type) {
1.180 schwarze 866: case ROFFT_BLOCK:
867: break;
1.168 schwarze 868: case ROFFT_HEAD:
869: term_flushln(p);
870: p->flags &= ~TERMP_NOBREAK;
871: break;
872: case ROFFT_BODY:
873: term_newln(p);
874: p->tcol->offset = mt->offset;
875: break;
876: default:
1.180 schwarze 877: abort();
1.168 schwarze 878: }
1.91 schwarze 879: }
880:
881: static int
882: pre_UR(DECL_ARGS)
883: {
1.138 schwarze 884: return n->type != ROFFT_HEAD;
1.91 schwarze 885: }
886:
887: static void
888: post_UR(DECL_ARGS)
889: {
1.124 schwarze 890: if (n->type != ROFFT_BLOCK)
1.91 schwarze 891: return;
892:
893: term_word(p, "<");
894: p->flags |= TERMP_NOSPACE;
895:
1.180 schwarze 896: if (n->child->child != NULL)
1.91 schwarze 897: print_man_node(p, mt, n->child->child, meta);
898:
899: p->flags |= TERMP_NOSPACE;
900: term_word(p, ">");
1.47 schwarze 901: }
902:
1.1 kristaps 903: static void
1.19 schwarze 904: print_man_node(DECL_ARGS)
1.1 kristaps 905: {
1.167 schwarze 906: const struct man_term_act *act;
907: int c;
1.1 kristaps 908:
909: switch (n->type) {
1.124 schwarze 910: case ROFFT_TEXT:
1.61 schwarze 911: /*
912: * If we have a blank line, output a vertical space.
913: * If we have a space as the first character, break
914: * before printing the line's data.
915: */
1.153 schwarze 916: if (*n->string == '\0') {
1.160 schwarze 917: if (p->flags & TERMP_NONEWLINE)
918: term_newln(p);
919: else
920: term_vspace(p);
1.61 schwarze 921: return;
1.153 schwarze 922: } else if (*n->string == ' ' && n->flags & NODE_LINE &&
923: (p->flags & TERMP_NONEWLINE) == 0)
1.60 schwarze 924: term_newln(p);
1.165 schwarze 925: else if (n->flags & NODE_DELIMC)
926: p->flags |= TERMP_NOSPACE;
1.21 schwarze 927:
1.1 kristaps 928: term_word(p, n->string);
1.84 schwarze 929: goto out;
1.163 schwarze 930: case ROFFT_COMMENT:
931: return;
1.124 schwarze 932: case ROFFT_EQN:
1.141 schwarze 933: if ( ! (n->flags & NODE_LINE))
1.105 schwarze 934: p->flags |= TERMP_NOSPACE;
1.71 schwarze 935: term_eqn(p, n->eqn);
1.141 schwarze 936: if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.106 schwarze 937: p->flags |= TERMP_NOSPACE;
1.61 schwarze 938: return;
1.124 schwarze 939: case ROFFT_TBL:
1.122 schwarze 940: if (p->tbl.cols == NULL)
941: term_vspace(p);
1.58 schwarze 942: term_tbl(p, n->span);
1.61 schwarze 943: return;
1.1 kristaps 944: default:
945: break;
946: }
1.177 schwarze 947:
1.146 schwarze 948: if (n->tok < ROFF_MAX) {
1.147 schwarze 949: roff_term_pre(p, n);
1.146 schwarze 950: return;
951: }
952:
1.167 schwarze 953: act = man_term_act(n->tok);
1.173 schwarze 954: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 955: term_fontrepl(p, TERMFONT_NONE);
956:
957: c = 1;
1.167 schwarze 958: if (act->pre != NULL)
959: c = (*act->pre)(p, mt, n, meta);
1.61 schwarze 960:
1.180 schwarze 961: if (c && n->child != NULL)
1.89 schwarze 962: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 963:
1.167 schwarze 964: if (act->post != NULL)
965: (*act->post)(p, mt, n, meta);
1.173 schwarze 966: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 967: term_fontrepl(p, TERMFONT_NONE);
1.30 schwarze 968:
1.84 schwarze 969: out:
970: /*
971: * If we're in a literal context, make sure that words
972: * together on the same line stay together. This is a
973: * POST-printing call, so we check the NEXT word. Since
974: * -man doesn't have nested macros, we don't need to be
975: * more specific than this.
976: */
1.178 schwarze 977: if (n->flags & NODE_NOFILL &&
1.110 schwarze 978: ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&
1.141 schwarze 979: (n->next == NULL || n->next->flags & NODE_LINE)) {
1.155 schwarze 980: p->flags |= TERMP_BRNEVER | TERMP_NOSPACE;
1.110 schwarze 981: if (n->string != NULL && *n->string != '\0')
1.84 schwarze 982: term_flushln(p);
983: else
984: term_newln(p);
1.155 schwarze 985: p->flags &= ~TERMP_BRNEVER;
1.156 schwarze 986: if (p->tcol->rmargin < p->maxrmargin &&
987: n->parent->tok == MAN_HP) {
988: p->tcol->offset = p->tcol->rmargin;
989: p->tcol->rmargin = p->maxrmargin;
1.155 schwarze 990: }
1.84 schwarze 991: }
1.180 schwarze 992: if (n->flags & NODE_EOS)
1.30 schwarze 993: p->flags |= TERMP_SENTENCE;
1.1 kristaps 994: }
995:
996: static void
1.21 schwarze 997: print_man_nodelist(DECL_ARGS)
1.1 kristaps 998: {
1.121 schwarze 999: while (n != NULL) {
1000: print_man_node(p, mt, n, meta);
1001: n = n->next;
1002: }
1.1 kristaps 1003: }
1004:
1005: static void
1.126 schwarze 1006: print_man_foot(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1007: {
1.101 schwarze 1008: char *title;
1.109 schwarze 1009: size_t datelen, titlen;
1.41 schwarze 1010:
1.80 schwarze 1011: assert(meta->title);
1012: assert(meta->msec);
1013: assert(meta->date);
1.21 schwarze 1014:
1015: term_fontrepl(p, TERMFONT_NONE);
1.1 kristaps 1016:
1.103 schwarze 1017: if (meta->hasbody)
1018: term_vspace(p);
1.81 schwarze 1019:
1020: /*
1021: * Temporary, undocumented option to imitate mdoc(7) output.
1.126 schwarze 1022: * In the bottom right corner, use the operating system
1023: * instead of the title.
1.81 schwarze 1024: */
1025:
1.79 schwarze 1026: if ( ! p->mdocstyle) {
1.103 schwarze 1027: if (meta->hasbody) {
1028: term_vspace(p);
1029: term_vspace(p);
1030: }
1.101 schwarze 1031: mandoc_asprintf(&title, "%s(%s)",
1032: meta->title, meta->msec);
1.180 schwarze 1033: } else if (meta->os != NULL) {
1.126 schwarze 1034: title = mandoc_strdup(meta->os);
1.79 schwarze 1035: } else {
1.101 schwarze 1036: title = mandoc_strdup("");
1.79 schwarze 1037: }
1.78 schwarze 1038: datelen = term_strlen(p, meta->date);
1.1 kristaps 1039:
1.126 schwarze 1040: /* Bottom left corner: operating system. */
1.81 schwarze 1041:
1.1 kristaps 1042: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.93 schwarze 1043: p->trailspace = 1;
1.156 schwarze 1044: p->tcol->offset = 0;
1045: p->tcol->rmargin = p->maxrmargin > datelen ?
1.109 schwarze 1046: (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
1.1 kristaps 1047:
1.126 schwarze 1048: if (meta->os)
1049: term_word(p, meta->os);
1.1 kristaps 1050: term_flushln(p);
1051:
1.81 schwarze 1052: /* At the bottom in the middle: manual date. */
1053:
1.156 schwarze 1054: p->tcol->offset = p->tcol->rmargin;
1.109 schwarze 1055: titlen = term_strlen(p, title);
1.156 schwarze 1056: p->tcol->rmargin = p->maxrmargin > titlen ?
1057: p->maxrmargin - titlen : 0;
1.72 schwarze 1058: p->flags |= TERMP_NOSPACE;
1.78 schwarze 1059:
1060: term_word(p, meta->date);
1061: term_flushln(p);
1062:
1.81 schwarze 1063: /* Bottom right corner: manual title and section. */
1064:
1.78 schwarze 1065: p->flags &= ~TERMP_NOBREAK;
1066: p->flags |= TERMP_NOSPACE;
1.93 schwarze 1067: p->trailspace = 0;
1.156 schwarze 1068: p->tcol->offset = p->tcol->rmargin;
1069: p->tcol->rmargin = p->maxrmargin;
1.1 kristaps 1070:
1.78 schwarze 1071: term_word(p, title);
1.1 kristaps 1072: term_flushln(p);
1.164 schwarze 1073:
1074: /*
1075: * Reset the terminal state for more output after the footer:
1076: * Some output modes, in particular PostScript and PDF, print
1077: * the header and the footer into a buffer such that it can be
1078: * reused for multiple output pages, then go on to format the
1079: * main text.
1080: */
1081:
1082: p->tcol->offset = 0;
1083: p->flags = 0;
1084:
1.101 schwarze 1085: free(title);
1.1 kristaps 1086: }
1087:
1088: static void
1.126 schwarze 1089: print_man_head(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1090: {
1.102 schwarze 1091: const char *volume;
1.101 schwarze 1092: char *title;
1.102 schwarze 1093: size_t vollen, titlen;
1.41 schwarze 1094:
1.89 schwarze 1095: assert(meta->title);
1096: assert(meta->msec);
1.1 kristaps 1097:
1.102 schwarze 1098: volume = NULL == meta->vol ? "" : meta->vol;
1099: vollen = term_strlen(p, volume);
1.1 kristaps 1100:
1.81 schwarze 1101: /* Top left corner: manual title and section. */
1102:
1.101 schwarze 1103: mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.42 schwarze 1104: titlen = term_strlen(p, title);
1.1 kristaps 1105:
1.73 schwarze 1106: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.93 schwarze 1107: p->trailspace = 1;
1.156 schwarze 1108: p->tcol->offset = 0;
1109: p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
1.102 schwarze 1110: (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.109 schwarze 1111: vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
1.1 kristaps 1112:
1113: term_word(p, title);
1114: term_flushln(p);
1115:
1.81 schwarze 1116: /* At the top in the middle: manual volume. */
1117:
1.72 schwarze 1118: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1119: p->tcol->offset = p->tcol->rmargin;
1120: p->tcol->rmargin = p->tcol->offset + vollen + titlen <
1121: p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1122:
1.102 schwarze 1123: term_word(p, volume);
1.1 kristaps 1124: term_flushln(p);
1125:
1.81 schwarze 1126: /* Top right corner: title and section, again. */
1127:
1.1 kristaps 1128: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 1129: p->trailspace = 0;
1.156 schwarze 1130: if (p->tcol->rmargin + titlen <= p->maxrmargin) {
1.72 schwarze 1131: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1132: p->tcol->offset = p->tcol->rmargin;
1133: p->tcol->rmargin = p->maxrmargin;
1.25 schwarze 1134: term_word(p, title);
1135: term_flushln(p);
1136: }
1.1 kristaps 1137:
1.73 schwarze 1138: p->flags &= ~TERMP_NOSPACE;
1.156 schwarze 1139: p->tcol->offset = 0;
1140: p->tcol->rmargin = p->maxrmargin;
1.29 schwarze 1141:
1.100 schwarze 1142: /*
1.81 schwarze 1143: * Groff prints three blank lines before the content.
1144: * Do the same, except in the temporary, undocumented
1145: * mode imitating mdoc(7) output.
1.29 schwarze 1146: */
1147:
1148: term_vspace(p);
1.79 schwarze 1149: if ( ! p->mdocstyle) {
1150: term_vspace(p);
1151: term_vspace(p);
1152: }
1.101 schwarze 1153: free(title);
1.184 ! schwarze 1154: }
! 1155:
! 1156: /*
! 1157: * Skip leading whitespace, dashes, backslashes, and font escapes,
! 1158: * then create a tag if the first following byte is a letter.
! 1159: * Priority is high unless whitespace is present.
! 1160: */
! 1161: static void
! 1162: tag_man(struct termp *p, struct roff_node *n)
! 1163: {
! 1164: const char *cp, *arg;
! 1165: int prio, sz;
! 1166:
! 1167: assert(n->type == ROFFT_TEXT);
! 1168: cp = n->string;
! 1169: prio = 1;
! 1170: for (;;) {
! 1171: switch (*cp) {
! 1172: case ' ':
! 1173: case '\t':
! 1174: prio = INT_MAX;
! 1175: /* FALLTHROUGH */
! 1176: case '-':
! 1177: cp++;
! 1178: break;
! 1179: case '\\':
! 1180: cp++;
! 1181: switch (mandoc_escape(&cp, &arg, &sz)) {
! 1182: case ESCAPE_FONT:
! 1183: case ESCAPE_FONTROMAN:
! 1184: case ESCAPE_FONTITALIC:
! 1185: case ESCAPE_FONTBOLD:
! 1186: case ESCAPE_FONTPREV:
! 1187: case ESCAPE_FONTBI:
! 1188: break;
! 1189: case ESCAPE_SPECIAL:
! 1190: if (sz != 1)
! 1191: return;
! 1192: switch (*arg) {
! 1193: case '&':
! 1194: case '-':
! 1195: case 'e':
! 1196: break;
! 1197: default:
! 1198: return;
! 1199: }
! 1200: break;
! 1201: default:
! 1202: return;
! 1203: }
! 1204: break;
! 1205: default:
! 1206: if (isalpha((unsigned char)*cp))
! 1207: tag_put(cp, prio, p->line);
! 1208: return;
! 1209: }
! 1210: }
1.1 kristaps 1211: }
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