2 * general implementation of scanf used by scanf, sscanf, fscanf,
3 * _cscanf, wscanf, swscanf and fwscanf
5 * Copyright 1996,1998 Marcus Meissner
6 * Copyright 1996 Jukka Iivonen
7 * Copyright 1997,2000 Uwe Bonnes
8 * Copyright 2000 Jon Griffiths
9 * Copyright 2002 Daniel Gudbjartsson
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
36 /* helper function for *scanf. Returns the value of character c in the
37 * given base, or -1 if the given character is not a digit of the base.
39 static int char2digit(char c
, int base
) {
40 if ((c
>='0') && (c
<='9') && (c
<='0'+base
-1)) return (c
-'0');
41 if (base
<=10) return -1;
42 if ((c
>='A') && (c
<='Z') && (c
<='A'+base
-11)) return (c
-'A'+10);
43 if ((c
>='a') && (c
<='z') && (c
<='a'+base
-11)) return (c
-'a'+10);
47 /* helper function for *wscanf. Returns the value of character c in the
48 * given base, or -1 if the given character is not a digit of the base.
50 static int wchar2digit(wchar_t c
, int base
) {
51 if ((c
>='0') && (c
<='9') && (c
<='0'+base
-1)) return (c
-'0');
52 if (base
<=10) return -1;
53 if ((c
>='A') && (c
<='Z') && (c
<='A'+base
-11)) return (c
-'A'+10);
54 if ((c
>='a') && (c
<='z') && (c
<='a'+base
-11)) return (c
-'a'+10);
92 /*********************************************************************
95 int fscanf(FILE *file
, const char *format
, ...)
100 va_start(valist
, format
);
101 res
= vfscanf(file
, format
, valist
);
106 /*********************************************************************
109 int scanf(const char *format
, ...)
114 va_start(valist
, format
);
115 res
= vfscanf(stdin
, format
, valist
);
120 /*********************************************************************
123 int fwscanf(FILE *file
, const wchar_t *format
, ...)
128 va_start(valist
, format
);
129 res
= vfwscanf(file
, format
, valist
);
135 /*********************************************************************
138 int wscanf(const wchar_t *format
, ...)
143 va_start(valist
, format
);
144 res
= vfwscanf(stdin
, format
, valist
);
151 /*********************************************************************
154 int sscanf(const char *str
, const char *format
, ...)
159 va_start(valist
, format
);
160 res
= vsscanf(str
, format
, valist
);
166 /*********************************************************************
169 int CDECL
swscanf(const wchar_t *str
, const wchar_t *format
, ...)
174 va_start(valist
, format
);
175 res
= vswscanf(str
, format
, valist
);
181 /*********************************************************************
184 int CDECL
_cscanf(const char *format
, ...)
189 va_start(valist
, format
);
190 res
= vcscanf(format
, valist
);