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 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include "lint.h"
30 #include <sys/types.h>
31 #include <ctype.h>
32 #include <stdio.h>
33 #include "base_conversion.h"
34 #include <locale.h>
35
36 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))37 func_to_decimal(char **ppc, int nmax, int fortran_conventions,
38 decimal_record *pd, enum decimal_string_form *pform,
39 char **pechar, int (*pget)(void), int *pnread,
40 int (*punget)(int))
41 {
42 char *cp = *ppc - 1; /* last character seen */
43 char *good = cp; /* last character accepted */
44 int current; /* *cp or EOF */
45 int nread = 0; /* number of characters read so far */
46
47 #define NEXT \
48 if (nread < nmax) { \
49 current = (*pget)(); \
50 if (current != EOF) { \
51 *++cp = (char)current; \
52 nread++; \
53 } \
54 } else { \
55 current = EOF; \
56 }
57
58 NEXT;
59
60 #include "char_to_decimal.h"
61
62 if (punget != NULL) {
63 /*
64 * If we read any characters beyond the end of the accepted
65 * token, try to push them back.
66 */
67 while (cp >= *ppc) {
68 if ((*punget)((int)(unsigned char)*cp) == EOF)
69 break;
70 cp--;
71 nread--;
72 }
73 }
74
75 *++cp = '\0';
76 *pnread = nread;
77 }
78