Annotation of src/usr.bin/mandoc/man_term.c, Revision 1.186
1.186 ! schwarze 1: /* $OpenBSD: man_term.c,v 1.185 2019/07/23 17:42:14 schwarze Exp $ */
1.1 kristaps 2: /*
1.84 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.186 ! 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
1.2 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;
1.185 schwarze 621:
622: if (nn == NULL)
623: return 0;
624:
625: if (nn->type == ROFFT_TEXT)
626: tag_man(p, nn);
627: else if (nn->child != NULL &&
628: nn->child->type == ROFFT_TEXT &&
629: (nn->tok == MAN_B || nn->tok == MAN_BI ||
630: nn->tok == MAN_BR || nn->tok == MAN_I ||
631: nn->tok == MAN_IB || nn->tok == MAN_IR))
632: tag_man(p, nn->child);
1.95 schwarze 633:
1.180 schwarze 634: while (nn != NULL) {
1.95 schwarze 635: print_man_node(p, mt, nn, meta);
636: nn = nn->next;
637: }
1.138 schwarze 638: return 0;
1.124 schwarze 639: case ROFFT_BODY:
1.156 schwarze 640: p->tcol->offset = mt->offset + len;
641: p->tcol->rmargin = p->maxrmargin;
1.93 schwarze 642: p->trailspace = 0;
1.137 schwarze 643: p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
1.11 schwarze 644: break;
645: default:
1.180 schwarze 646: abort();
1.11 schwarze 647: }
1.138 schwarze 648: return 1;
1.11 schwarze 649: }
1.1 kristaps 650:
1.11 schwarze 651: static void
652: post_TP(DECL_ARGS)
653: {
654: switch (n->type) {
1.180 schwarze 655: case ROFFT_BLOCK:
656: break;
1.124 schwarze 657: case ROFFT_HEAD:
1.11 schwarze 658: term_flushln(p);
659: break;
1.124 schwarze 660: case ROFFT_BODY:
1.57 schwarze 661: term_newln(p);
1.156 schwarze 662: p->tcol->offset = mt->offset;
1.11 schwarze 663: break;
664: default:
1.180 schwarze 665: abort();
1.11 schwarze 666: }
1.1 kristaps 667: }
668:
669: static int
670: pre_SS(DECL_ARGS)
671: {
1.88 schwarze 672: int i;
1.1 kristaps 673:
1.11 schwarze 674: switch (n->type) {
1.124 schwarze 675: case ROFFT_BLOCK:
1.77 schwarze 676: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
677: mt->offset = term_len(p, p->defindent);
1.111 schwarze 678:
679: /*
680: * No vertical space before the first subsection
681: * and after an empty subsection.
682: */
683:
684: do {
685: n = n->prev;
1.162 schwarze 686: } while (n != NULL && n->tok >= MAN_TH &&
1.167 schwarze 687: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.163 schwarze 688: if (n == NULL || n->type == ROFFT_COMMENT ||
689: (n->tok == MAN_SS && n->body->child == NULL))
1.11 schwarze 690: break;
1.111 schwarze 691:
1.88 schwarze 692: for (i = 0; i < mt->pardist; i++)
693: term_vspace(p);
1.11 schwarze 694: break;
1.124 schwarze 695: case ROFFT_HEAD:
1.21 schwarze 696: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 697: p->tcol->offset = term_len(p, 3);
698: p->tcol->rmargin = mt->offset;
1.129 schwarze 699: p->trailspace = mt->offset;
700: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 701: break;
1.124 schwarze 702: case ROFFT_BODY:
1.156 schwarze 703: p->tcol->offset = mt->offset;
704: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 705: p->trailspace = 0;
706: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 707: break;
708: default:
709: break;
710: }
1.138 schwarze 711: return 1;
1.1 kristaps 712: }
713:
714: static int
715: pre_SH(DECL_ARGS)
716: {
1.88 schwarze 717: int i;
1.1 kristaps 718:
1.11 schwarze 719: switch (n->type) {
1.124 schwarze 720: case ROFFT_BLOCK:
1.77 schwarze 721: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
722: mt->offset = term_len(p, p->defindent);
1.111 schwarze 723:
724: /*
725: * No vertical space before the first section
726: * and after an empty section.
727: */
728:
729: do {
730: n = n->prev;
1.162 schwarze 731: } while (n != NULL && n->tok >= MAN_TH &&
1.167 schwarze 732: man_term_act(n->tok)->flags & MAN_NOTEXT);
1.163 schwarze 733: if (n == NULL || n->type == ROFFT_COMMENT ||
734: (n->tok == MAN_SH && n->body->child == NULL))
1.29 schwarze 735: break;
1.111 schwarze 736:
1.88 schwarze 737: for (i = 0; i < mt->pardist; i++)
738: term_vspace(p);
1.11 schwarze 739: break;
1.124 schwarze 740: case ROFFT_HEAD:
1.21 schwarze 741: term_fontrepl(p, TERMFONT_BOLD);
1.156 schwarze 742: p->tcol->offset = 0;
743: p->tcol->rmargin = mt->offset;
1.129 schwarze 744: p->trailspace = mt->offset;
745: p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.11 schwarze 746: break;
1.124 schwarze 747: case ROFFT_BODY:
1.156 schwarze 748: p->tcol->offset = mt->offset;
749: p->tcol->rmargin = p->maxrmargin;
1.129 schwarze 750: p->trailspace = 0;
751: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.11 schwarze 752: break;
753: default:
1.180 schwarze 754: abort();
1.11 schwarze 755: }
1.138 schwarze 756: return 1;
1.1 kristaps 757: }
758:
759: static void
760: post_SH(DECL_ARGS)
761: {
1.11 schwarze 762: switch (n->type) {
1.180 schwarze 763: case ROFFT_BLOCK:
764: break;
1.124 schwarze 765: case ROFFT_HEAD:
766: case ROFFT_BODY:
1.11 schwarze 767: term_newln(p);
768: break;
769: default:
1.180 schwarze 770: abort();
1.13 schwarze 771: }
772: }
773:
774: static int
775: pre_RS(DECL_ARGS)
776: {
1.116 schwarze 777: struct roffsu su;
1.13 schwarze 778:
779: switch (n->type) {
1.124 schwarze 780: case ROFFT_BLOCK:
1.13 schwarze 781: term_newln(p);
1.138 schwarze 782: return 1;
1.124 schwarze 783: case ROFFT_HEAD:
1.138 schwarze 784: return 0;
1.180 schwarze 785: case ROFFT_BODY:
786: break;
1.13 schwarze 787: default:
1.180 schwarze 788: abort();
1.13 schwarze 789: }
790:
1.118 schwarze 791: n = n->parent->head;
792: n->aux = SHRT_MAX + 1;
1.130 schwarze 793: if (n->child == NULL)
794: n->aux = mt->lmargin[mt->lmargincur];
1.157 schwarze 795: else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
1.158 schwarze 796: n->aux = term_hen(p, &su);
1.118 schwarze 797: if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
798: n->aux = -mt->offset;
799: else if (n->aux > SHRT_MAX)
800: n->aux = term_len(p, p->defindent);
1.13 schwarze 801:
1.118 schwarze 802: mt->offset += n->aux;
1.156 schwarze 803: p->tcol->offset = mt->offset;
804: p->tcol->rmargin = p->maxrmargin;
1.13 schwarze 805:
1.70 schwarze 806: if (++mt->lmarginsz < MAXMARGINS)
807: mt->lmargincur = mt->lmarginsz;
808:
1.131 schwarze 809: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
1.138 schwarze 810: return 1;
1.13 schwarze 811: }
812:
813: static void
814: post_RS(DECL_ARGS)
815: {
816: switch (n->type) {
1.124 schwarze 817: case ROFFT_BLOCK:
818: case ROFFT_HEAD:
1.69 schwarze 819: return;
1.180 schwarze 820: case ROFFT_BODY:
821: break;
1.13 schwarze 822: default:
1.180 schwarze 823: abort();
1.11 schwarze 824: }
1.180 schwarze 825: term_newln(p);
1.118 schwarze 826: mt->offset -= n->parent->head->aux;
1.156 schwarze 827: p->tcol->offset = mt->offset;
1.70 schwarze 828: if (--mt->lmarginsz < MAXMARGINS)
829: mt->lmargincur = mt->lmarginsz;
1.168 schwarze 830: }
831:
832: static int
833: pre_SY(DECL_ARGS)
834: {
835: const struct roff_node *nn;
836: int len;
837:
838: switch (n->type) {
839: case ROFFT_BLOCK:
1.170 schwarze 840: if (n->prev == NULL || n->prev->tok != MAN_SY)
841: print_bvspace(p, n, mt->pardist);
1.168 schwarze 842: return 1;
843: case ROFFT_HEAD:
844: case ROFFT_BODY:
845: break;
846: default:
847: abort();
848: }
849:
850: nn = n->parent->head->child;
1.172 schwarze 851: len = nn == NULL ? 1 : term_strlen(p, nn->string) + 1;
1.168 schwarze 852:
853: switch (n->type) {
854: case ROFFT_HEAD:
855: p->tcol->offset = mt->offset;
856: p->tcol->rmargin = mt->offset + len;
1.181 schwarze 857: if (n->next->child == NULL ||
858: (n->next->child->flags & NODE_NOFILL) == 0)
859: p->flags |= TERMP_NOBREAK;
1.168 schwarze 860: term_fontrepl(p, TERMFONT_BOLD);
861: break;
862: case ROFFT_BODY:
863: mt->lmargin[mt->lmargincur] = len;
864: p->tcol->offset = mt->offset + len;
865: p->tcol->rmargin = p->maxrmargin;
866: p->flags |= TERMP_NOSPACE;
867: break;
868: default:
869: abort();
870: }
871: return 1;
872: }
873:
874: static void
875: post_SY(DECL_ARGS)
876: {
877: switch (n->type) {
1.180 schwarze 878: case ROFFT_BLOCK:
879: break;
1.168 schwarze 880: case ROFFT_HEAD:
881: term_flushln(p);
882: p->flags &= ~TERMP_NOBREAK;
883: break;
884: case ROFFT_BODY:
885: term_newln(p);
886: p->tcol->offset = mt->offset;
887: break;
888: default:
1.180 schwarze 889: abort();
1.168 schwarze 890: }
1.91 schwarze 891: }
892:
893: static int
894: pre_UR(DECL_ARGS)
895: {
1.138 schwarze 896: return n->type != ROFFT_HEAD;
1.91 schwarze 897: }
898:
899: static void
900: post_UR(DECL_ARGS)
901: {
1.124 schwarze 902: if (n->type != ROFFT_BLOCK)
1.91 schwarze 903: return;
904:
905: term_word(p, "<");
906: p->flags |= TERMP_NOSPACE;
907:
1.180 schwarze 908: if (n->child->child != NULL)
1.91 schwarze 909: print_man_node(p, mt, n->child->child, meta);
910:
911: p->flags |= TERMP_NOSPACE;
912: term_word(p, ">");
1.47 schwarze 913: }
914:
1.1 kristaps 915: static void
1.19 schwarze 916: print_man_node(DECL_ARGS)
1.1 kristaps 917: {
1.167 schwarze 918: const struct man_term_act *act;
919: int c;
1.1 kristaps 920:
921: switch (n->type) {
1.124 schwarze 922: case ROFFT_TEXT:
1.61 schwarze 923: /*
924: * If we have a blank line, output a vertical space.
925: * If we have a space as the first character, break
926: * before printing the line's data.
927: */
1.153 schwarze 928: if (*n->string == '\0') {
1.160 schwarze 929: if (p->flags & TERMP_NONEWLINE)
930: term_newln(p);
931: else
932: term_vspace(p);
1.61 schwarze 933: return;
1.153 schwarze 934: } else if (*n->string == ' ' && n->flags & NODE_LINE &&
935: (p->flags & TERMP_NONEWLINE) == 0)
1.60 schwarze 936: term_newln(p);
1.165 schwarze 937: else if (n->flags & NODE_DELIMC)
938: p->flags |= TERMP_NOSPACE;
1.21 schwarze 939:
1.1 kristaps 940: term_word(p, n->string);
1.84 schwarze 941: goto out;
1.163 schwarze 942: case ROFFT_COMMENT:
943: return;
1.124 schwarze 944: case ROFFT_EQN:
1.141 schwarze 945: if ( ! (n->flags & NODE_LINE))
1.105 schwarze 946: p->flags |= TERMP_NOSPACE;
1.71 schwarze 947: term_eqn(p, n->eqn);
1.141 schwarze 948: if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.106 schwarze 949: p->flags |= TERMP_NOSPACE;
1.61 schwarze 950: return;
1.124 schwarze 951: case ROFFT_TBL:
1.122 schwarze 952: if (p->tbl.cols == NULL)
953: term_vspace(p);
1.58 schwarze 954: term_tbl(p, n->span);
1.61 schwarze 955: return;
1.1 kristaps 956: default:
957: break;
958: }
1.177 schwarze 959:
1.146 schwarze 960: if (n->tok < ROFF_MAX) {
1.147 schwarze 961: roff_term_pre(p, n);
1.146 schwarze 962: return;
963: }
964:
1.167 schwarze 965: act = man_term_act(n->tok);
1.173 schwarze 966: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 967: term_fontrepl(p, TERMFONT_NONE);
968:
969: c = 1;
1.167 schwarze 970: if (act->pre != NULL)
971: c = (*act->pre)(p, mt, n, meta);
1.61 schwarze 972:
1.180 schwarze 973: if (c && n->child != NULL)
1.89 schwarze 974: print_man_nodelist(p, mt, n->child, meta);
1.1 kristaps 975:
1.167 schwarze 976: if (act->post != NULL)
977: (*act->post)(p, mt, n, meta);
1.173 schwarze 978: if ((act->flags & MAN_NOTEXT) == 0 && n->tok != MAN_SM)
1.61 schwarze 979: term_fontrepl(p, TERMFONT_NONE);
1.30 schwarze 980:
1.84 schwarze 981: out:
982: /*
983: * If we're in a literal context, make sure that words
984: * together on the same line stay together. This is a
985: * POST-printing call, so we check the NEXT word. Since
986: * -man doesn't have nested macros, we don't need to be
987: * more specific than this.
988: */
1.178 schwarze 989: if (n->flags & NODE_NOFILL &&
1.110 schwarze 990: ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&
1.141 schwarze 991: (n->next == NULL || n->next->flags & NODE_LINE)) {
1.155 schwarze 992: p->flags |= TERMP_BRNEVER | TERMP_NOSPACE;
1.110 schwarze 993: if (n->string != NULL && *n->string != '\0')
1.84 schwarze 994: term_flushln(p);
995: else
996: term_newln(p);
1.155 schwarze 997: p->flags &= ~TERMP_BRNEVER;
1.156 schwarze 998: if (p->tcol->rmargin < p->maxrmargin &&
999: n->parent->tok == MAN_HP) {
1000: p->tcol->offset = p->tcol->rmargin;
1001: p->tcol->rmargin = p->maxrmargin;
1.155 schwarze 1002: }
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) {
1.103 schwarze 1039: if (meta->hasbody) {
1040: term_vspace(p);
1041: term_vspace(p);
1042: }
1.101 schwarze 1043: mandoc_asprintf(&title, "%s(%s)",
1044: meta->title, meta->msec);
1.180 schwarze 1045: } else if (meta->os != NULL) {
1.126 schwarze 1046: title = mandoc_strdup(meta->os);
1.79 schwarze 1047: } else {
1.101 schwarze 1048: title = mandoc_strdup("");
1.79 schwarze 1049: }
1.78 schwarze 1050: datelen = term_strlen(p, meta->date);
1.1 kristaps 1051:
1.126 schwarze 1052: /* Bottom left corner: operating system. */
1.81 schwarze 1053:
1.1 kristaps 1054: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.93 schwarze 1055: p->trailspace = 1;
1.156 schwarze 1056: p->tcol->offset = 0;
1057: p->tcol->rmargin = p->maxrmargin > datelen ?
1.109 schwarze 1058: (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
1.1 kristaps 1059:
1.126 schwarze 1060: if (meta->os)
1061: term_word(p, meta->os);
1.1 kristaps 1062: term_flushln(p);
1063:
1.81 schwarze 1064: /* At the bottom in the middle: manual date. */
1065:
1.156 schwarze 1066: p->tcol->offset = p->tcol->rmargin;
1.109 schwarze 1067: titlen = term_strlen(p, title);
1.156 schwarze 1068: p->tcol->rmargin = p->maxrmargin > titlen ?
1069: p->maxrmargin - titlen : 0;
1.72 schwarze 1070: p->flags |= TERMP_NOSPACE;
1.78 schwarze 1071:
1072: term_word(p, meta->date);
1073: term_flushln(p);
1074:
1.81 schwarze 1075: /* Bottom right corner: manual title and section. */
1076:
1.78 schwarze 1077: p->flags &= ~TERMP_NOBREAK;
1078: p->flags |= TERMP_NOSPACE;
1.93 schwarze 1079: p->trailspace = 0;
1.156 schwarze 1080: p->tcol->offset = p->tcol->rmargin;
1081: p->tcol->rmargin = p->maxrmargin;
1.1 kristaps 1082:
1.78 schwarze 1083: term_word(p, title);
1.1 kristaps 1084: term_flushln(p);
1.164 schwarze 1085:
1086: /*
1087: * Reset the terminal state for more output after the footer:
1088: * Some output modes, in particular PostScript and PDF, print
1089: * the header and the footer into a buffer such that it can be
1090: * reused for multiple output pages, then go on to format the
1091: * main text.
1092: */
1093:
1094: p->tcol->offset = 0;
1095: p->flags = 0;
1096:
1.101 schwarze 1097: free(title);
1.1 kristaps 1098: }
1099:
1100: static void
1.126 schwarze 1101: print_man_head(struct termp *p, const struct roff_meta *meta)
1.1 kristaps 1102: {
1.102 schwarze 1103: const char *volume;
1.101 schwarze 1104: char *title;
1.102 schwarze 1105: size_t vollen, titlen;
1.41 schwarze 1106:
1.89 schwarze 1107: assert(meta->title);
1108: assert(meta->msec);
1.1 kristaps 1109:
1.102 schwarze 1110: volume = NULL == meta->vol ? "" : meta->vol;
1111: vollen = term_strlen(p, volume);
1.1 kristaps 1112:
1.81 schwarze 1113: /* Top left corner: manual title and section. */
1114:
1.101 schwarze 1115: mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.42 schwarze 1116: titlen = term_strlen(p, title);
1.1 kristaps 1117:
1.73 schwarze 1118: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.93 schwarze 1119: p->trailspace = 1;
1.156 schwarze 1120: p->tcol->offset = 0;
1121: p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
1.102 schwarze 1122: (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.109 schwarze 1123: vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
1.1 kristaps 1124:
1125: term_word(p, title);
1126: term_flushln(p);
1127:
1.81 schwarze 1128: /* At the top in the middle: manual volume. */
1129:
1.72 schwarze 1130: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1131: p->tcol->offset = p->tcol->rmargin;
1132: p->tcol->rmargin = p->tcol->offset + vollen + titlen <
1133: p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1134:
1.102 schwarze 1135: term_word(p, volume);
1.1 kristaps 1136: term_flushln(p);
1137:
1.81 schwarze 1138: /* Top right corner: title and section, again. */
1139:
1.1 kristaps 1140: p->flags &= ~TERMP_NOBREAK;
1.93 schwarze 1141: p->trailspace = 0;
1.156 schwarze 1142: if (p->tcol->rmargin + titlen <= p->maxrmargin) {
1.72 schwarze 1143: p->flags |= TERMP_NOSPACE;
1.156 schwarze 1144: p->tcol->offset = p->tcol->rmargin;
1145: p->tcol->rmargin = p->maxrmargin;
1.25 schwarze 1146: term_word(p, title);
1147: term_flushln(p);
1148: }
1.1 kristaps 1149:
1.73 schwarze 1150: p->flags &= ~TERMP_NOSPACE;
1.156 schwarze 1151: p->tcol->offset = 0;
1152: p->tcol->rmargin = p->maxrmargin;
1.29 schwarze 1153:
1.100 schwarze 1154: /*
1.81 schwarze 1155: * Groff prints three blank lines before the content.
1156: * Do the same, except in the temporary, undocumented
1157: * mode imitating mdoc(7) output.
1.29 schwarze 1158: */
1159:
1160: term_vspace(p);
1.79 schwarze 1161: if ( ! p->mdocstyle) {
1162: term_vspace(p);
1163: term_vspace(p);
1164: }
1.101 schwarze 1165: free(title);
1.184 schwarze 1166: }
1167:
1168: /*
1169: * Skip leading whitespace, dashes, backslashes, and font escapes,
1170: * then create a tag if the first following byte is a letter.
1171: * Priority is high unless whitespace is present.
1172: */
1173: static void
1174: tag_man(struct termp *p, struct roff_node *n)
1175: {
1176: const char *cp, *arg;
1177: int prio, sz;
1178:
1179: assert(n->type == ROFFT_TEXT);
1180: cp = n->string;
1.186 ! schwarze 1181: prio = TAG_STRONG;
1.184 schwarze 1182: for (;;) {
1183: switch (*cp) {
1184: case ' ':
1185: case '\t':
1.186 ! schwarze 1186: prio = TAG_WEAK;
1.184 schwarze 1187: /* FALLTHROUGH */
1188: case '-':
1189: cp++;
1190: break;
1191: case '\\':
1192: cp++;
1193: switch (mandoc_escape(&cp, &arg, &sz)) {
1194: case ESCAPE_FONT:
1195: case ESCAPE_FONTROMAN:
1196: case ESCAPE_FONTITALIC:
1197: case ESCAPE_FONTBOLD:
1198: case ESCAPE_FONTPREV:
1199: case ESCAPE_FONTBI:
1200: break;
1201: case ESCAPE_SPECIAL:
1202: if (sz != 1)
1203: return;
1204: switch (*arg) {
1205: case '&':
1206: case '-':
1207: case 'e':
1208: break;
1209: default:
1210: return;
1211: }
1212: break;
1213: default:
1214: return;
1215: }
1216: break;
1217: default:
1218: if (isalpha((unsigned char)*cp))
1219: tag_put(cp, prio, p->line);
1220: return;
1221: }
1222: }
1.1 kristaps 1223: }
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