1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1988 AT&T */
23 /* All Rights Reserved */
24
25
26 /*
27 * Copyright (c) 1997, by Sun Microsystems, Inc.
28 * All rights reserved.
29 */
30
31 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */
32
33 /*LINTLIBRARY*/
34
35 #include <sys/types.h>
36 #include <stdlib.h>
37 #include "utility.h"
38
39 /*
40 * TYPE_NUMERIC standard type
41 *
42 * usage:
43 * set_field_type(f, TYPE_NUMERIC, precision, vmin, vmax);
44 *
45 * int precision; digits to right of decimal point
46 * double vmin; minimum acceptable value
47 * double vmax; maximum acceptable value
48 */
49 static char *make_num(va_list *);
50 static char *copy_num(char *);
51 static void free_num(char *);
52 static int fcheck_num(FIELD *, char *);
53 static int ccheck_num(int, char *);
54
55 typedef struct {
56
57 int prec;
58 double vmin;
59 double vmax;
60 } NUMERIC;
61
62 static FIELDTYPE typeNUMERIC =
63 {
64 ARGS, /* status */
65 1, /* ref */
66 (FIELDTYPE *) 0, /* left */
67 (FIELDTYPE *) 0, /* right */
68 make_num, /* makearg */
69 copy_num, /* copyarg */
70 free_num, /* freearg */
71 fcheck_num, /* fcheck */
72 ccheck_num, /* ccheck */
73 (PTF_int) 0, /* next */
74 (PTF_int) 0, /* prev */
75 };
76
77 FIELDTYPE * TYPE_NUMERIC = &typeNUMERIC;
78
79 static char *
make_num(va_list * ap)80 make_num(va_list *ap)
81 {
82 NUMERIC * n;
83
84 if (Alloc(n, NUMERIC)) {
85 n -> prec = va_arg(*ap, int);
86 n -> vmin = va_arg(*ap, double);
87 n -> vmax = va_arg(*ap, double);
88 }
89 return ((char *) n);
90 }
91
92 static char *
copy_num(char * arg)93 copy_num(char *arg)
94 {
95 NUMERIC *n;
96
97 if (Alloc(n, NUMERIC))
98 *n = *((NUMERIC *) arg);
99 return ((char *) n);
100 }
101
102 static void
free_num(char * arg)103 free_num(char *arg)
104 {
105 Free(arg);
106 }
107
108 static int
fcheck_num(FIELD * f,char * arg)109 fcheck_num(FIELD *f, char *arg)
110 {
111 NUMERIC * n = (NUMERIC *) arg;
112 double vmin = n -> vmin;
113 double vmax = n -> vmax;
114 int prec = n -> prec;
115 char * x = field_buffer(f, 0);
116 char buf[80];
117
118 while (*x && *x == ' ')
119 ++x;
120 if (*x) {
121 char * t = x;
122
123 if (*x == '-')
124 ++x;
125 while (*x && isdigit(*x))
126 ++x;
127 if (*x == '.') {
128 ++x;
129 while (*x && isdigit(*x))
130 ++x;
131 }
132 while (*x && *x == ' ')
133 ++x;
134 if (! *x) {
135 double v = atof(t);
136
137 if (vmin >= vmax || (v >= vmin && v <= vmax)) {
138 (void) sprintf(buf, "%.*f", prec, v);
139 (void) set_field_buffer(f, 0, buf);
140 return (TRUE);
141 }
142 }
143 }
144 return (FALSE);
145 }
146
147 #define charok(c) (isdigit(c) || c == '-' || c == '.')
148
149 /*ARGSUSED*/
150
151 static int
ccheck_num(int c,char * arg)152 ccheck_num(int c, char *arg)
153 {
154 return (charok(c));
155 }
156