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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include "lint.h"
28 #include <sys/types.h>
29 #include <ctype.h>
30 #include <stdio.h>
31 #include "base_conversion.h"
32 #include <locale.h>
33
34 void
func_to_decimal(char ** ppc,int nmax,int fortran_conventions,decimal_record * pd,enum decimal_string_form * pform,char ** pechar,int (* pget)(void),int * pnread,int (* punget)(int))35 func_to_decimal(char **ppc, int nmax, int fortran_conventions,
36 decimal_record *pd, enum decimal_string_form *pform,
37 char **pechar, int (*pget)(void), int *pnread,
38 int (*punget)(int))
39 {
40 char *cp = *ppc - 1; /* last character seen */
41 char *good = cp; /* last character accepted */
42 int current; /* *cp or EOF */
43 int nread = 0; /* number of characters read so far */
44
45 #define NEXT \
46 if (nread < nmax) { \
47 current = (*pget)(); \
48 if (current != EOF) { \
49 *++cp = (char)current; \
50 nread++; \
51 } \
52 } else { \
53 current = EOF; \
54 }
55
56 NEXT;
57
58 #include "char_to_decimal.h"
59
60 if (punget != NULL) {
61 /*
62 * If we read any characters beyond the end of the accepted
63 * token, try to push them back.
64 */
65 while (cp >= *ppc) {
66 if ((*punget)((int)(unsigned char)*cp) == EOF)
67 break;
68 cp--;
69 nread--;
70 }
71 }
72
73 *++cp = '\0';
74 *pnread = nread;
75 }
76