PART 2: The character set

宏定义
#define	FIRST_TEXT_CHAR   0
	[#19] ordinal number of the smallest element of TextChar. 更多...
#define	LAST_TEXT_CHAR   255
	[#19] ordinal number of the largest element of TextChar. 更多...
#define	NULL_CODE   0
	[#22] ASCII code that might disappear. 更多...
#define	CARRIAGE_RETURN   '\r'
	[#22] ASCII code used at end of line. 更多...
#define	INVALID_CODE   127
	[#22] ASCII code that many systems prohibit in text files. 更多...

类型定义
typedef UChar	ASCIICode
	[#18]: ASCIICode::UChar(8) = [0, 255] 更多...
typedef UChar	TextChar
	[#19]: TextChar::UChar(8) = [0, 255] 更多...

函数
void	charset_init ()

变量
ASCIICode	xord [256]
	[#20] specifies conversion of input characters. 更多...
TextChar	xchr [256]
	[#20] specifies conversion of output characters. 更多...

详细描述

宏定义说明

CARRIAGE_RETURN

#define CARRIAGE_RETURN   '\r'

[#22] ASCII code used at end of line.

FIRST_TEXT_CHAR

#define FIRST_TEXT_CHAR   0

[#19] ordinal number of the smallest element of TextChar.

INVALID_CODE

#define INVALID_CODE   127

[#22] ASCII code that many systems prohibit in text files.

LAST_TEXT_CHAR

#define LAST_TEXT_CHAR   255

[#19] ordinal number of the largest element of TextChar.

NULL_CODE

#define NULL_CODE   0

[#22] ASCII code that might disappear.

类型定义说明

ASCIICode

typedef UChar ASCIICode

[#18]: ASCIICode::UChar(8) = [0, 255]

TextChar

typedef UChar TextChar

[#19]: TextChar::UChar(8) = [0, 255]

函数说明

charset_init()

void charset_init

(

)

[#21]

[#24]

变量说明

xchr

TextChar xchr[256]

[#20] specifies conversion of output characters.

xord

ASCIICode xord[256]

[#20] specifies conversion of input characters.