794 lines
19 KiB
C
794 lines
19 KiB
C
/*
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* msvcrt.dll wide-char functions
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*
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* Copyright 1999 Alexandre Julliard
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* Copyright 2000 Jon Griffiths
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <limits.h>
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#include <stdio.h>
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#include <math.h>
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#include <assert.h>
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#include "msvcrt.h"
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#include "winnls.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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/* INTERNAL: MSVCRT_malloc() based wstrndup */
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MSVCRT_wchar_t* msvcrt_wstrndup(const MSVCRT_wchar_t *buf, unsigned int size)
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{
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MSVCRT_wchar_t* ret;
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unsigned int len = strlenW(buf), max_len;
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max_len = size <= len? size : len + 1;
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ret = MSVCRT_malloc(max_len * sizeof (MSVCRT_wchar_t));
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if (ret)
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{
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memcpy(ret,buf,max_len * sizeof (MSVCRT_wchar_t));
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ret[max_len] = 0;
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}
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return ret;
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}
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/*********************************************************************
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* _wcsdup (MSVCRT.@)
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*/
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MSVCRT_wchar_t* _wcsdup( const MSVCRT_wchar_t* str )
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{
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MSVCRT_wchar_t* ret = NULL;
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if (str)
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{
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int size = (strlenW(str) + 1) * sizeof(MSVCRT_wchar_t);
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ret = MSVCRT_malloc( size );
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if (ret) memcpy( ret, str, size );
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}
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return ret;
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}
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/*********************************************************************
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* _wcsicoll (MSVCRT.@)
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*/
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INT _wcsicoll( const MSVCRT_wchar_t* str1, const MSVCRT_wchar_t* str2 )
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{
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/* FIXME: handle collates */
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return strcmpiW( str1, str2 );
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}
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/*********************************************************************
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* _wcsnset (MSVCRT.@)
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*/
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MSVCRT_wchar_t* _wcsnset( MSVCRT_wchar_t* str, MSVCRT_wchar_t c, MSVCRT_size_t n )
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{
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MSVCRT_wchar_t* ret = str;
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while ((n-- > 0) && *str) *str++ = c;
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return ret;
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}
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/*********************************************************************
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* _wcsrev (MSVCRT.@)
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*/
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MSVCRT_wchar_t* _wcsrev( MSVCRT_wchar_t* str )
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{
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MSVCRT_wchar_t* ret = str;
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MSVCRT_wchar_t* end = str + strlenW(str) - 1;
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while (end > str)
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{
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MSVCRT_wchar_t t = *end;
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*end-- = *str;
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*str++ = t;
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}
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return ret;
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}
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/*********************************************************************
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* _wcsset (MSVCRT.@)
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*/
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MSVCRT_wchar_t* _wcsset( MSVCRT_wchar_t* str, MSVCRT_wchar_t c )
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{
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MSVCRT_wchar_t* ret = str;
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while (*str) *str++ = c;
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return ret;
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}
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/*********************************************************************
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* wcstod (MSVCRT.@)
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*/
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double MSVCRT_wcstod(const MSVCRT_wchar_t* lpszStr, MSVCRT_wchar_t** end)
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{
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const MSVCRT_wchar_t* str = lpszStr;
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int negative = 0;
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double ret = 0, divisor = 10.0;
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TRACE("(%s,%p) semi-stub\n", debugstr_w(lpszStr), end);
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/* FIXME:
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* - Should set errno on failure
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* - Should fail on overflow
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* - Need to check which input formats are allowed
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*/
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while (isspaceW(*str))
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str++;
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if (*str == '-')
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{
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negative = 1;
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str++;
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}
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while (isdigitW(*str))
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{
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ret = ret * 10.0 + (*str - '0');
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str++;
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}
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if (*str == '.')
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str++;
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while (isdigitW(*str))
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{
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ret = ret + (*str - '0') / divisor;
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divisor *= 10;
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str++;
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}
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if (*str == 'E' || *str == 'e' || *str == 'D' || *str == 'd')
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{
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int negativeExponent = 0;
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int exponent = 0;
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if (*(++str) == '-')
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{
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negativeExponent = 1;
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str++;
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}
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while (isdigitW(*str))
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{
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exponent = exponent * 10 + (*str - '0');
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str++;
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}
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if (exponent != 0)
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{
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if (negativeExponent)
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ret = ret / pow(10.0, exponent);
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else
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ret = ret * pow(10.0, exponent);
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}
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}
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if (negative)
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ret = -ret;
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if (end)
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*end = (MSVCRT_wchar_t*)str;
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TRACE("returning %g\n", ret);
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return ret;
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}
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typedef struct pf_output_t
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{
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int used;
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int len;
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BOOL unicode;
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union {
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LPWSTR W;
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LPSTR A;
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} buf;
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} pf_output;
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typedef struct pf_flags_t
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{
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char Sign, LeftAlign, Alternate, PadZero;
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char FieldLength, Precision;
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char IntegerLength, IntegerDouble;
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char WideString;
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char Format;
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} pf_flags;
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/*
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* writes a string of characters to the output
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* returns -1 if the string doesn't fit in the output buffer
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* return the length of the string if all characters were written
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*/
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static inline int pf_output_stringW( pf_output *out, LPCWSTR str, int len )
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{
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int space = out->len - out->used;
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if( len < 0 )
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len = strlenW( str );
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if( out->unicode )
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{
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LPWSTR p = out->buf.W + out->used;
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if( space >= len )
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{
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memcpy( p, str, len*sizeof(WCHAR) );
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out->used += len;
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return len;
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}
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if( space > 0 )
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memcpy( p, str, space*sizeof(WCHAR) );
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out->used += len;
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}
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else
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{
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int n = WideCharToMultiByte( CP_ACP, 0, str, len, NULL, 0, NULL, NULL );
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LPSTR p = out->buf.A + out->used;
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if( space >= n )
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{
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WideCharToMultiByte( CP_ACP, 0, str, len, p, n, NULL, NULL );
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out->used += n;
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return len;
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}
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if( space > 0 )
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WideCharToMultiByte( CP_ACP, 0, str, len, p, space, NULL, NULL );
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out->used += n;
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}
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return -1;
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}
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static inline int pf_output_stringA( pf_output *out, LPCSTR str, int len )
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{
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int space = out->len - out->used;
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if( len < 0 )
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len = strlen( str );
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if( !out->unicode )
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{
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LPSTR p = out->buf.A + out->used;
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if( space >= len )
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{
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memcpy( p, str, len );
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out->used += len;
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return len;
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}
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if( space > 0 )
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memcpy( p, str, space );
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out->used += len;
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}
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else
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{
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int n = MultiByteToWideChar( CP_ACP, 0, str, len, NULL, 0 );
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LPWSTR p = out->buf.W + out->used;
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if( space >= n )
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{
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MultiByteToWideChar( CP_ACP, 0, str, len, p, n );
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out->used += n;
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return len;
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}
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if( space > 0 )
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MultiByteToWideChar( CP_ACP, 0, str, len, p, space );
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out->used += n;
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}
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return -1;
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}
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static inline int pf_fill( pf_output *out, int len, pf_flags *flags, char left )
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{
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int i, r = 0;
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if( ( !left && flags->LeftAlign ) ||
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( left && !flags->LeftAlign ) ||
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( left && flags->PadZero ) )
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{
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for( i=0; (i<(flags->FieldLength-len)) && (r>=0); i++ )
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{
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if( flags->PadZero )
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r = pf_output_stringA( out, "0", 1 );
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else
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r = pf_output_stringA( out, " ", 1 );
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}
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}
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return r;
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}
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static inline int pf_output_format_W( pf_output *out, LPCWSTR str,
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int len, pf_flags *flags )
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{
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int r = 0;
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if( len < 0 )
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len = strlenW( str );
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r = pf_fill( out, len, flags, 1 );
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if( r>=0 )
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r = pf_output_stringW( out, str, len );
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if( r>=0 )
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r = pf_fill( out, len, flags, 0 );
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return r;
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}
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static inline int pf_output_format_A( pf_output *out, LPCSTR str,
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int len, pf_flags *flags )
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{
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int r = 0;
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if( len < 0 )
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len = strlen( str );
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r = pf_fill( out, len, flags, 1 );
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if( r>=0 )
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r = pf_output_stringA( out, str, len );
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if( r>=0 )
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r = pf_fill( out, len, flags, 0 );
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return r;
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}
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static inline BOOL pf_is_double_format( char fmt )
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{
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char float_fmts[] = "aefg";
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if (!fmt)
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return FALSE;
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fmt = tolower( fmt );
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return strchr( float_fmts, fmt ) ? TRUE : FALSE;
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}
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static inline BOOL pf_is_valid_format( char fmt )
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{
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char float_fmts[] = "acdefginoux";
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if (!fmt)
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return FALSE;
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fmt = tolower( fmt );
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return strchr( float_fmts, fmt ) ? TRUE : FALSE;
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}
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static void pf_rebuild_format_string( char *p, pf_flags *flags )
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{
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*p++ = '%';
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if( flags->Sign )
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*p++ = flags->Sign;
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if( flags->LeftAlign )
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*p++ = flags->LeftAlign;
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if( flags->Alternate )
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*p++ = flags->Alternate;
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if( flags->PadZero )
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*p++ = flags->PadZero;
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if( flags->FieldLength )
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{
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sprintf(p, "%d", flags->FieldLength);
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p += strlen(p);
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}
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if( flags->Precision )
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{
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sprintf(p, ".%d", flags->Precision);
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p += strlen(p);
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}
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*p++ = flags->Format;
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*p++ = 0;
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}
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/*********************************************************************
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* pf_vsnprintf (INTERNAL)
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*
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* implements both A and W vsnprintf functions
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*/
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static int pf_vsnprintf( pf_output *out, const WCHAR *format, va_list valist )
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{
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int r;
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LPCWSTR q, p = format;
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pf_flags flags;
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while (*p)
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{
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q = strchrW( p, '%' );
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/* there's no % characters left, output the rest of the string */
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if( !q )
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{
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r = pf_output_stringW(out, p, -1);
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if( r<0 )
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return r;
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p += r;
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continue;
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}
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/* there's characters before the %, output them */
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if( q != p )
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{
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r = pf_output_stringW(out, p, q - p);
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if( r<0 )
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return r;
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p = q;
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}
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/* we must be at a % now, skip over it */
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assert( *p == '%' );
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p++;
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/* output a single % character */
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if( *p == '%' )
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{
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r = pf_output_stringW(out, p, 1);
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if( r<0 )
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return r;
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continue;
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}
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/* parse the flags */
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memset( &flags, 0, sizeof flags );
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while (*p)
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{
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if( *p == '+' || *p == ' ' )
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flags.Sign = '+';
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else if( *p == '-' )
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flags.LeftAlign = *p;
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else if( *p == '0' )
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flags.PadZero = *p;
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else if( *p == '#' )
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flags.Alternate = *p;
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else
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break;
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p++;
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}
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/* deal with the field width specifier */
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flags.FieldLength = 0;
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if( *p == '*' )
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flags.FieldLength = va_arg( valist, int );
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else while( isdigit(*p) )
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{
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flags.FieldLength *= 10;
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flags.FieldLength += *p++ - '0';
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}
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/* deal with precision */
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if( *p == '.' )
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{
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p++;
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if( *p == '*' )
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flags.Precision = va_arg( valist, int );
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else while( isdigit(*p) )
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{
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flags.Precision *= 10;
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flags.Precision += *p++ - '0';
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}
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}
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/* deal with integer width modifier */
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while( *p )
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{
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if( *p == 'h' || *p == 'l' || *p == 'L' )
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{
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if( flags.IntegerLength == *p ) /* FIXME: this is wrong */
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flags.IntegerDouble++;
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else
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flags.IntegerLength = *p;
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p++;
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}
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else if( *p == 'w' )
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flags.WideString = *p++;
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else
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break;
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}
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flags.Format = *p;
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r = 0;
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/* output a unicode string */
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if( ( flags.Format == 's' && flags.WideString ) ||
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( !out->unicode && flags.Format == 'S' ) ||
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( out->unicode && flags.Format == 's' ) )
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{
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LPCWSTR str = va_arg( valist, const WCHAR * );
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if( str )
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r = pf_output_format_W( out, str, -1, &flags );
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else
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r = pf_output_format_A( out, "(null)", -1, &flags );
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}
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/* output a ASCII string */
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else if( ( flags.Format == 's' && flags.IntegerLength == 'h' ) ||
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( out->unicode && flags.Format == 'S' ) ||
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( !out->unicode && flags.Format == 's' ) )
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{
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LPCSTR str = va_arg( valist, const CHAR * );
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if( str )
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r = pf_output_format_A( out, str, -1, &flags );
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else
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r = pf_output_format_A( out, "(null)", -1, &flags );
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}
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/* output a single wide character */
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else if( ( flags.Format == 'c' && flags.IntegerLength == 'w' ) ||
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( out->unicode && flags.Format == 'c' ) ||
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( !out->unicode && flags.Format == 'C' ) )
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{
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WCHAR ch = va_arg( valist, int );
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r = pf_output_format_W( out, &ch, 1, &flags );
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}
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/* output a single ascii character */
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else if( ( flags.Format == 'c' && flags.IntegerLength == 'h' ) ||
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( out->unicode && flags.Format == 'C' ) ||
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( !out->unicode && flags.Format == 'c' ) )
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{
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CHAR ch = va_arg( valist, int );
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r = pf_output_format_A( out, &ch, 1, &flags );
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}
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/* output a pointer */
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else if( flags.Format == 'p' )
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{
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char pointer[10];
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flags.PadZero = 0;
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if( flags.Alternate )
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sprintf(pointer, "0X%08lX", va_arg(valist, long));
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else
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sprintf(pointer, "%08lX", va_arg(valist, long));
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r = pf_output_format_A( out, pointer, -1, &flags );
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}
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/* deal with %n */
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else if( flags.Format == 'n' )
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{
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int *x = va_arg(valist, int *);
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*x = out->used;
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}
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/* deal with integers and floats using libc's printf */
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else if( pf_is_valid_format( flags.Format ) )
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{
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char fmt[20], number[40], *x = number;
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if( flags.FieldLength >= sizeof number )
|
|
x = HeapAlloc( GetProcessHeap(), 0, flags.FieldLength+1 );
|
|
|
|
pf_rebuild_format_string( fmt, &flags );
|
|
|
|
if( pf_is_double_format( flags.Format ) )
|
|
sprintf( number, fmt, va_arg(valist, double) );
|
|
else
|
|
sprintf( number, fmt, va_arg(valist, int) );
|
|
|
|
r = pf_output_stringA( out, number, -1 );
|
|
if( x != number )
|
|
HeapFree( GetProcessHeap(), 0, number );
|
|
}
|
|
else
|
|
continue;
|
|
|
|
if( r<0 )
|
|
return r;
|
|
p++;
|
|
}
|
|
|
|
/* check we reached the end, and null terminate the string */
|
|
assert( *p == 0 );
|
|
r = pf_output_stringW( out, p, 1 );
|
|
if( r<0 )
|
|
return r;
|
|
|
|
return out->used - 1;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* _vsnprintf (MSVCRT.@)
|
|
*/
|
|
int MSVCRT_vsnprintf( char *str, unsigned int len,
|
|
const char *format, va_list valist )
|
|
{
|
|
DWORD sz;
|
|
LPWSTR formatW = NULL;
|
|
pf_output out;
|
|
int r;
|
|
|
|
out.unicode = FALSE;
|
|
out.buf.A = str;
|
|
out.used = 0;
|
|
out.len = len;
|
|
|
|
if( format )
|
|
{
|
|
sz = MultiByteToWideChar( CP_ACP, 0, format, -1, NULL, 0 );
|
|
formatW = HeapAlloc( GetProcessHeap(), 0, sz*sizeof(WCHAR) );
|
|
MultiByteToWideChar( CP_ACP, 0, format, -1, formatW, sz );
|
|
}
|
|
|
|
r = pf_vsnprintf( &out, formatW, valist );
|
|
|
|
HeapFree( GetProcessHeap(), 0, formatW );
|
|
|
|
return r;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* _vsnwsprintf (MSVCRT.@)
|
|
*/
|
|
int MSVCRT_vsnwprintf( MSVCRT_wchar_t *str, unsigned int len,
|
|
const WCHAR *format, va_list valist )
|
|
{
|
|
pf_output out;
|
|
|
|
out.unicode = TRUE;
|
|
out.buf.W = str;
|
|
out.used = 0;
|
|
out.len = len;
|
|
|
|
return pf_vsnprintf( &out, format, valist );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* sprintf (MSVCRT.@)
|
|
*/
|
|
int MSVCRT_sprintf( char *str, const char *format, ... )
|
|
{
|
|
va_list ap;
|
|
int r;
|
|
|
|
va_start( ap, format );
|
|
r = MSVCRT_vsnprintf( str, INT_MAX, format, ap );
|
|
va_end( ap );
|
|
return r;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* swprintf (MSVCRT.@)
|
|
*/
|
|
int MSVCRT_swprintf( MSVCRT_wchar_t *str, const MSVCRT_wchar_t *format, ... )
|
|
{
|
|
va_list ap;
|
|
int r;
|
|
|
|
va_start( ap, format );
|
|
r = MSVCRT_vsnwprintf( str, INT_MAX, format, ap );
|
|
va_end( ap );
|
|
return r;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* vswprintf (MSVCRT.@)
|
|
*/
|
|
int MSVCRT_vswprintf( MSVCRT_wchar_t* str, const MSVCRT_wchar_t* format, va_list args )
|
|
{
|
|
return MSVCRT_vsnwprintf( str, INT_MAX, format, args );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* wcscoll (MSVCRT.@)
|
|
*/
|
|
int MSVCRT_wcscoll( const MSVCRT_wchar_t* str1, const MSVCRT_wchar_t* str2 )
|
|
{
|
|
/* FIXME: handle collates */
|
|
return strcmpW( str1, str2 );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* wcspbrk (MSVCRT.@)
|
|
*/
|
|
MSVCRT_wchar_t* MSVCRT_wcspbrk( const MSVCRT_wchar_t* str, const MSVCRT_wchar_t* accept )
|
|
{
|
|
const MSVCRT_wchar_t* p;
|
|
while (*str)
|
|
{
|
|
for (p = accept; *p; p++) if (*p == *str) return (MSVCRT_wchar_t*)str;
|
|
str++;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* wctomb (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_wctomb( char *dst, MSVCRT_wchar_t ch )
|
|
{
|
|
return WideCharToMultiByte( CP_ACP, 0, &ch, 1, dst, 6, NULL, NULL );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswalnum (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswalnum( MSVCRT_wchar_t wc )
|
|
{
|
|
return isalnumW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswalpha (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswalpha( MSVCRT_wchar_t wc )
|
|
{
|
|
return isalphaW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswcntrl (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswcntrl( MSVCRT_wchar_t wc )
|
|
{
|
|
return iscntrlW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswdigit (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswdigit( MSVCRT_wchar_t wc )
|
|
{
|
|
return isdigitW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswgraph (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswgraph( MSVCRT_wchar_t wc )
|
|
{
|
|
return isgraphW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswlower (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswlower( MSVCRT_wchar_t wc )
|
|
{
|
|
return islowerW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswprint (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswprint( MSVCRT_wchar_t wc )
|
|
{
|
|
return isprintW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswpunct (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswpunct( MSVCRT_wchar_t wc )
|
|
{
|
|
return ispunctW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswspace (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswspace( MSVCRT_wchar_t wc )
|
|
{
|
|
return isspaceW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswupper (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswupper( MSVCRT_wchar_t wc )
|
|
{
|
|
return isupperW( wc );
|
|
}
|
|
|
|
/*********************************************************************
|
|
* iswxdigit (MSVCRT.@)
|
|
*/
|
|
INT MSVCRT_iswxdigit( MSVCRT_wchar_t wc )
|
|
{
|
|
return isxdigitW( wc );
|
|
}
|