Пример #1
0
FBCALL FB_WCHAR *fb_WstrTrim ( const FB_WCHAR *src )
{
	FB_WCHAR *dst;
	const FB_WCHAR *p;
	ssize_t chars;

	if( src == NULL )
		return NULL;

	chars = fb_wstr_Len( src );
	if( chars <= 0 )
		return NULL;

	p = fb_wstr_SkipCharRev( src, chars, _LC(' ') );
	chars = fb_wstr_CalcDiff( src, p );
	if( chars <= 0 )
		return NULL;

	p = fb_wstr_SkipChar( src, chars, _LC(' ') );
	chars -= fb_wstr_CalcDiff( src, p );
	if( chars <= 0 )
		return NULL;

	/* alloc temp string */
	dst = fb_wstr_AllocTemp( chars );
	if( dst != NULL )
	{
		/* simple copy */
		fb_wstr_Copy( dst, p, chars );
	}

	return dst;
}
Пример #2
0
/*:::::*/
FBCALL int fb_WstrToInt( const FB_WCHAR *src, int len )
{
    const FB_WCHAR *p, *r;
    int radix;

	/* skip white spc */
	p = fb_wstr_SkipChar( src, len, 32 );

	len -= fb_wstr_CalcDiff( src, p );
	if( len < 1 )
		return 0;

	radix = 10;
	r = p;
	if( (len >= 2) && (*r++ == L'&') )
	{
		switch( *r++ )
		{
			case L'h':
			case L'H':
				radix = 16;
				break;
			case L'o':
			case L'O':
				radix = 8;
				break;
			case L'b':
			case L'B':
				radix = 2;
				break;

			default: /* assume octal */
				radix = 8;
				r--;
				break;
		}

		if( radix != 10 )
			p = r;
	}

	/* wcstol() saturates values outside [-2^31, 2^31)
	so use wcstoul() instead */
	return (int)wcstoul( p, NULL, radix );
}
Пример #3
0
FBCALL FB_WCHAR *fb_WstrTrimEx ( const FB_WCHAR *src, const FB_WCHAR *pattern )
{
	FB_WCHAR *dst;
	ssize_t len;
	const FB_WCHAR *p = src;

	if( src == NULL ) {
		return NULL;
	}

	{
		ssize_t len_pattern = fb_wstr_Len( pattern );
		len = fb_wstr_Len( src );
		if( len >= len_pattern ) {
			if( len_pattern==1 ) {
				p = fb_wstr_SkipChar( src,
				                      len,
				                      *pattern );
				len -= fb_wstr_CalcDiff( src, p );

			} else if( len_pattern != 0 ) {
				p = src;
				while (len >= len_pattern ) {
					if( fb_wstr_Compare( p, pattern, len_pattern )!=0 )
						break;
					p += len_pattern;
					len -= len_pattern;
				}
			}
		}
		if( len >= len_pattern ) {
			if( len_pattern==1 ) {
				const FB_WCHAR *p_tmp =
					fb_wstr_SkipCharRev( p,
					                     len,
					                     *pattern );
				len = fb_wstr_CalcDiff( p, p_tmp );

			} else if( len_pattern != 0 ) {
				ssize_t test_index = len - len_pattern;
				while (len >= len_pattern ) {
					if( fb_wstr_Compare( p + test_index,
					                     pattern,
					                     len_pattern )!=0 )
						break;
					test_index -= len_pattern;
				}
				len = test_index + len_pattern;

			}
		}
	}

	if( len > 0 )
	{
		/* alloc temp string */
		dst = fb_wstr_AllocTemp( len );
		if( dst != NULL )
		{
			/* simple copy */
			fb_wstr_Copy( dst, p, len );
		}
		else
			dst = NULL;
	}
	else
		dst = NULL;

	return dst;
}
Пример #4
0
FBCALL double fb_WstrToDouble( const FB_WCHAR *src, ssize_t len )
{
	const FB_WCHAR *p, *r;
	int radix;
	ssize_t i;
	FB_WCHAR *q, c;
	double ret;

	/* skip white spc */
	p = fb_wstr_SkipChar( src, len, 32 );

	len -= fb_wstr_CalcDiff( src, p );
	if( len < 1 )
		return 0.0;

	r = p;
	if( (len >= 2) && (*r++ == L'&') )
	{
		radix = 0;
		switch( *r++ )
		{
			case L'h':
			case L'H':
				radix = 16;
				break;
			case L'o':
			case L'O':
				radix = 8;
				break;
			case L'b':
			case L'B':
				radix = 2;
				break;

			default: /* assume octal */
				radix = 8;
				r--;
				break;
		}

		if( radix != 0 )
			return (double)fb_WstrRadix2Longint( r, len - fb_wstr_CalcDiff( p, r ), radix );
	}

	/* Workaround: wcstod() does not allow 'd' as an exponent specifier on 
	 * non-win32 platforms, so create a temporary buffer and replace any 
	 * 'd's with 'e'
	 */
	q = malloc( (len + 1) * sizeof(FB_WCHAR) );
	for( i = 0; i < len; i++ )
	{
		c = p[i];
		if( c == L'd' || c == L'D' )
			++c;
		q[i]= c;
	}
	q[len] = L'\0';
	ret = wcstod( q, NULL );
	free( q );

	return ret;
}