202 lines
3.9 KiB
C
Executable File
202 lines
3.9 KiB
C
Executable File
/*****************************************************************************
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*
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* This program is free software ; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; 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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* $Id: vsprintf.c 271 2005-08-09 08:31:35Z picard $
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*
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* The Core Pocket Media Player
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* Copyright (c) 2004-2005 Gabor Kovacs
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*
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****************************************************************************/
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#include "../common.h"
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int vsprintf(tchar_t *s0, const tchar_t *fmt, va_list args)
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{
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tchar_t Num[80];
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tchar_t *s;
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for (s=s0;*fmt;++fmt)
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{
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if (fmt[0]=='%' && fmt[1])
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{
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const tchar_t *str;
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bool_t Left = 0;
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bool_t Sign = 0;
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bool_t Large = 0;
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bool_t ZeroPad = 0;
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int Width = -1;
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int Type = -1;
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int Base = 10;
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tchar_t ch,cs;
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int Len;
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long n;
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for (;;)
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{
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switch (*(++fmt))
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{
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case '-': Left = 1; continue;
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case '0': ZeroPad = 1; continue;
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default: break;
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}
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break;
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}
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if (IsDigit(*fmt))
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{
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Width = 0;
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for (;IsDigit(*fmt);++fmt)
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Width = Width*10 + (*fmt-'0');
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}
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else
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if (*fmt == '*')
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{
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++fmt;
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Width = va_arg(args, int);
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if (Width < 0)
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{
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Left = 1;
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Width = -Width;
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}
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}
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if (*fmt == 'h' ||
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*fmt == 'L' ||
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*fmt == 'l')
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Type = *(fmt++);
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switch (*fmt)
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{
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case 'c':
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for (;!Left && Width>1;--Width)
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*(s++) = ' ';
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*(s++) = (char)va_arg(args,int);
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for (;Width>1;--Width)
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*(s++) = ' ';
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continue;
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case 's':
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str = va_arg(args,const tchar_t*);
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if (!s)
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str = T("<NULL>");
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Len = tcslen(str);
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for (;!Left && Width>Len;--Width)
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*(s++) = ' ';
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for (;Len>0;--Len,--Width)
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*(s++) = *(str++);
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for (;Width>0;--Width)
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*(s++) = ' ';
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continue;
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case 'o':
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Base = 8;
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break;
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case 'X':
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Large = 1;
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case 'x':
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Base = 16;
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break;
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case 'i':
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case 'd':
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Sign = 1;
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case 'u':
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break;
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default:
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if (*fmt != '%')
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*(s++) = '%';
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*(s++) = *fmt;
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continue;
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}
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if (Type == 'l')
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n = va_arg(args,unsigned long);
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else
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if (Type == 'h')
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if (Sign)
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n = (short)va_arg(args,int);
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else
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n = (unsigned short)va_arg(args,unsigned int);
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else
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if (Sign)
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n = va_arg(args,int);
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else
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n= va_arg(args,unsigned int);
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if (Left)
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ZeroPad = 0;
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if (Large)
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str = T("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
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else
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str = T("0123456789abcdefghijklmnopqrstuvwxyz");
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ch = ' ';
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if (ZeroPad)
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ch = '0';
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cs = 0;
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if (n<0 && Sign)
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{
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cs = '-';
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n=-n;
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}
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Len = 0;
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if (n==0)
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Num[Len++] = '0';
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else
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{
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unsigned long un = n;
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while (un != 0)
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{
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Num[Len++] = str[un%Base];
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un /= Base;
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}
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}
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if (cs)
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++Len;
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for (;!Left && Width>Len;--Width)
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*(s++) = ch;
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if (cs)
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{
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*(s++) = cs;
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--Len;
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--Width;
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}
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for (;Len;--Width)
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*(s++) = Num[--Len];
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for (;Width>0;--Width)
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*(s++) = ' ';
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}
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else
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*(s++) = *fmt;
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}
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*(s++) = 0;
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return s-s0;
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}
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int sprintf(tchar_t *s, const tchar_t *fmt, ...)
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{
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int i;
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va_list Args;
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va_start(Args,fmt);
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i=vsprintf(s,fmt,Args);
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va_end(Args);
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return i;
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}
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