Annotation of mandoc/roff_term.c, Revision 1.5
1.1 schwarze 1: /* $OpenBSD$ */
2: /*
1.4 schwarze 3: * Copyright (c) 2010, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #include <sys/types.h>
18:
19: #include <assert.h>
1.3 schwarze 20: #include <stddef.h>
1.1 schwarze 21:
22: #include "roff.h"
23: #include "out.h"
24: #include "term.h"
25:
26: #define ROFF_TERM_ARGS struct termp *p, const struct roff_node *n
27:
28: typedef void (*roff_term_pre_fp)(ROFF_TERM_ARGS);
29:
30: static void roff_term_pre_br(ROFF_TERM_ARGS);
1.2 schwarze 31: static void roff_term_pre_ft(ROFF_TERM_ARGS);
1.3 schwarze 32: static void roff_term_pre_ll(ROFF_TERM_ARGS);
1.4 schwarze 33: static void roff_term_pre_sp(ROFF_TERM_ARGS);
1.5 ! schwarze 34: static void roff_term_pre_ta(ROFF_TERM_ARGS);
1.1 schwarze 35:
36: static const roff_term_pre_fp roff_term_pre_acts[ROFF_MAX] = {
37: roff_term_pre_br, /* br */
1.2 schwarze 38: roff_term_pre_ft, /* ft */
1.3 schwarze 39: roff_term_pre_ll, /* ft */
1.5 ! schwarze 40: roff_term_pre_sp, /* sp */
! 41: roff_term_pre_ta, /* ta */
1.1 schwarze 42: };
43:
44:
45: void
46: roff_term_pre(struct termp *p, const struct roff_node *n)
47: {
48: assert(n->tok < ROFF_MAX);
49: (*roff_term_pre_acts[n->tok])(p, n);
50: }
51:
52: static void
53: roff_term_pre_br(ROFF_TERM_ARGS)
54: {
55: term_newln(p);
56: if (p->flags & TERMP_BRIND) {
57: p->offset = p->rmargin;
58: p->rmargin = p->maxrmargin;
59: p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.2 schwarze 60: }
61: }
62:
63: static void
64: roff_term_pre_ft(ROFF_TERM_ARGS)
65: {
66: switch (*n->child->string) {
67: case '4':
68: case '3':
69: case 'B':
70: term_fontrepl(p, TERMFONT_BOLD);
71: break;
72: case '2':
73: case 'I':
74: term_fontrepl(p, TERMFONT_UNDER);
75: break;
76: case 'P':
77: term_fontlast(p);
78: break;
79: case '1':
80: case 'C':
81: case 'R':
82: term_fontrepl(p, TERMFONT_NONE);
83: break;
84: default:
85: break;
1.1 schwarze 86: }
1.3 schwarze 87: }
88:
89: static void
90: roff_term_pre_ll(ROFF_TERM_ARGS)
91: {
92: term_setwidth(p, n->child != NULL ? n->child->string : NULL);
1.4 schwarze 93: }
94:
95: static void
96: roff_term_pre_sp(ROFF_TERM_ARGS)
97: {
98: struct roffsu su;
99: int len;
100:
101: if (n->child != NULL) {
102: if (a2roffsu(n->child->string, &su, SCALE_VS) == 0)
103: su.scale = 1.0;
104: len = term_vspan(p, &su);
105: } else
106: len = 1;
107:
108: if (len < 0)
109: p->skipvsp -= len;
110: else
111: while (len--)
112: term_vspace(p);
113:
114: roff_term_pre_br(p, n);
1.5 ! schwarze 115: }
! 116:
! 117: static void
! 118: roff_term_pre_ta(ROFF_TERM_ARGS)
! 119: {
! 120: term_tab_set(p, NULL);
! 121: for (n = n->child; n != NULL; n = n->next)
! 122: term_tab_set(p, n->string);
1.1 schwarze 123: }
CVSweb