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 /*LINTLIBRARY*/
32
33 #include <sys/types.h>
34 #include <stdlib.h>
35 #include "utility.h"
36
37 /*
38 * TYPE_NUMERIC standard type
39 *
40 * usage:
41 * set_field_type(f, TYPE_NUMERIC, precision, vmin, vmax);
42 *
43 * int precision; digits to right of decimal point
44 * double vmin; minimum acceptable value
45 * double vmax; maximum acceptable value
46 */
47 static char *make_num(va_list *);
48 static char *copy_num(char *);
49 static void free_num(char *);
50 static int fcheck_num(FIELD *, char *);
51 static int ccheck_num(int, char *);
52
53 typedef struct {
54
55 int prec;
56 double vmin;
57 double vmax;
58 } NUMERIC;
59
60 static FIELDTYPE typeNUMERIC =
61 {
62 ARGS, /* status */
63 1, /* ref */
64 (FIELDTYPE *) 0, /* left */
65 (FIELDTYPE *) 0, /* right */
66 make_num, /* makearg */
67 copy_num, /* copyarg */
68 free_num, /* freearg */
69 fcheck_num, /* fcheck */
70 ccheck_num, /* ccheck */
71 (PTF_int) 0, /* next */
72 (PTF_int) 0, /* prev */
73 };
74
75 FIELDTYPE * TYPE_NUMERIC = &typeNUMERIC;
76
77 static char *
make_num(va_list * ap)78 make_num(va_list *ap)
79 {
80 NUMERIC * n;
81
82 if (Alloc(n, NUMERIC)) {
83 n -> prec = va_arg(*ap, int);
84 n -> vmin = va_arg(*ap, double);
85 n -> vmax = va_arg(*ap, double);
86 }
87 return ((char *) n);
88 }
89
90 static char *
copy_num(char * arg)91 copy_num(char *arg)
92 {
93 NUMERIC *n;
94
95 if (Alloc(n, NUMERIC))
96 *n = *((NUMERIC *) arg);
97 return ((char *) n);
98 }
99
100 static void
free_num(char * arg)101 free_num(char *arg)
102 {
103 Free(arg);
104 }
105
106 static int
fcheck_num(FIELD * f,char * arg)107 fcheck_num(FIELD *f, char *arg)
108 {
109 NUMERIC * n = (NUMERIC *) arg;
110 double vmin = n -> vmin;
111 double vmax = n -> vmax;
112 int prec = n -> prec;
113 char * x = field_buffer(f, 0);
114 char buf[80];
115
116 while (*x && *x == ' ')
117 ++x;
118 if (*x) {
119 char * t = x;
120
121 if (*x == '-')
122 ++x;
123 while (*x && isdigit(*x))
124 ++x;
125 if (*x == '.') {
126 ++x;
127 while (*x && isdigit(*x))
128 ++x;
129 }
130 while (*x && *x == ' ')
131 ++x;
132 if (! *x) {
133 double v = atof(t);
134
135 if (vmin >= vmax || (v >= vmin && v <= vmax)) {
136 (void) sprintf(buf, "%.*f", prec, v);
137 (void) set_field_buffer(f, 0, buf);
138 return (TRUE);
139 }
140 }
141 }
142 return (FALSE);
143 }
144
145 #define charok(c) (isdigit(c) || c == '-' || c == '.')
146
147 /*ARGSUSED*/
148
149 static int
ccheck_num(int c,char * arg)150 ccheck_num(int c, char *arg)
151 {
152 return (charok(c));
153 }
154