枚举
enum	Selector { NO_PRINT = 16 , TERM_ONLY , LOG_ONLY , TERM_AND_LOG , PSEUDO = 20 , NEW_STRING = 21 , MAX_SELECTOR = NEW_STRING }
	[p24#54]: selector possible settings. 更多...

函数
void	println (void)
	[p25#57]: 输出换行 . 更多...

void	print_char (ASCIICode c)
	[p25#58]: 输出单个 ASCII 字符 . 更多...

void	print (StrNumber s)
	[p26#59]: prints string `s` . 更多...

void	printnl (StrNumber s)
	[#62]: prints string s at beginning of line. 更多...

void	print_esc (StrNumber s)
	[#63]: prints escape character, then `s` . 更多...

void	print_the_digs (EightBits k, char dig[])
	[#64]: prints `dig[k − 1]...dig[0]` . 更多...

void	print_int (Integer n)
	[#65]: prints an integer in decimal form. 更多...

void	print_two (Integer n)
	[#69]: 打印两位数字 `(0 <= n <= 99)`. 更多...

void	print_hex (Integer n)
	[#67]: 打印十六进制的非负整数 `(n >= 0)`. 更多...

void	print_roman_int (Integer n)
	[#69]: 打印罗马数字 . 更多...

void	term_input (void)
	[#70] print_current_string in str.c . 更多...

变量
FILE *	log_file = NULL
	transcript of TeX session. 更多...

Selector	selector
	where to print a message. 更多...

Integer	tally
	the number of characters recently printed. 更多...

static UChar	term_offset
	the number of characters on the current terminal line. 更多...

static UChar	file_offset
	the number of characters on the current file line. 更多...

ASCIICode	trick_buf [ERROR_LINE+1]
	circular buffer for pseudoprinting. 更多...

Integer	trick_count
	threshold for pseudoprinting, explained later. 更多...

Integer	first_count
	another variable for pseudoprinting. 更多...

详细描述

枚举类型说明

◆ Selector

enum Selector

[p24#54]: selector possible settings.

enum Selector = [16, 21]

convenient relations

NO_PRINT + 1 = TERM_ONLY,
NO_PRINT + 2 = LOG_ONLY,
TERM_ONLY + 2 = LOG_ONLY + 1 = TERM_AND_LOG

枚举值
NO_PRINT	doesn't print at all.
TERM_ONLY	prints only on the terminal.
LOG_ONLY	prints only on the transcript file.
TERM_AND_LOG	normal selector setting.
PSEUDO	puts output into a cyclic buffer that is used by the show_context routine.
NEW_STRING	appends the output to the current string in the string pool.
MAX_SELECTOR	highest selector setting. NOTE: not_use, only used in assert

函数说明

◆ print()

void print ( StrNumber s )

[p26#59]: prints string s .

全局变量:

[in] selector
[in] eqtb 由 newlinechar 间接引用

◆ print_char()

void print_char ( ASCIICode c )

[p25#58]: 输出单个 ASCII 字符 .

prints a single character.

The print char procedure sends one character to the desired destination, using the xchr array to map it into an external character compatible with input ln. All printing comes through println or print_char.

根据 selector 选择输出位置.

全局变量:

[in] selector
[in] xchr
[out] write_file

print.h 导出变量:

[out] log_file
[out] term_offset
[out] file_offset
[out] tally
[out] trick_count
[out] trick_buf

◆ print_esc()

void print_esc ( StrNumber s )

[#63]: prints escape character, then s .

prints a string that is preceded by the user’s escape character (which is usually a backslash).

◆ print_hex()

void print_hex ( Integer n )

[#67]: 打印十六进制的非负整数 (n >= 0).

◆ print_int()

void print_int ( Integer n )

[#65]: prints an integer in decimal form.

◆ print_roman_int()

void print_roman_int ( Integer n )

[#69]: 打印罗马数字 .

Notice: 1990 => "mcmxc", not "mxm"

◆ print_the_digs()

void print_the_digs	(	EightBits	k,
		char	dig[]
	)

[#64]: prints dig[k − 1]...dig[0] .

dig[k] = [0, 15] (hex value: 0~F)

◆ print_two()

void print_two ( Integer n )

[#69]: 打印两位数字 (0 <= n <= 99).

◆ println()

void println ( void )

[p25#57]: 输出换行 .

prints an end-of-line.

tally is not affected.

全局变量:

[in] selector
[out] write_file

print.h 导出变量:

[out] log_file
[out] term_offset
[out] file_offset

used by

[58]print_char, [59]print, [61]S55_Initialize_the_output_routines, [62]printnl, [71]term_input, [82]error, [114]print_word, [182]shownodelist, [198]showbox, [218]showactivities, [245]begin_diagnostic, [296]print_meaning, [306]runaway, [330]clearforerrorprompt, [331]showcontext, [341]_get_next_helper, [363]firm_up_the_line, [389]macrocall, [482]readtoks, [534]open_log_file, [537]start_input, [638]shipout, [649]hpack, [668]vpackage, [692]printsubsidiarydata, [1265]newinteraction, [1279]issuemessage, [1302/1309,1311,1320,1324]store_fmt_file, [1333]close_files_and_terminate, [1370]writeout

◆ printnl()

void printnl ( StrNumber s )

[#62]: prints string s at beginning of line.

全局变量:

[in] selector

print.h 导出变量:

[out] term_offset
[out] file_offset

◆ term_input()

void term_input ( void )

[#70] print_current_string in str.c .

[#71]: gets a line from the terminal.

全局变量

[in] last
[in] first
[out] term_offset
[out] selector

变量说明

◆ file_offset

UChar file_offset

static

the number of characters on the current file line.

file_offset = [0, MAX_PRINT_LINE=79]

◆ first_count

Integer first_count

another variable for pseudoprinting.

only used by: lexer.c

◆ log_file

FILE* log_file = NULL

transcript of TeX session.

◆ selector

Selector selector

where to print a message.

◆ tally

Integer tally

the number of characters recently printed.

only used by: lexer.c

◆ term_offset

UChar term_offset

static

the number of characters on the current terminal line.

term_offset = [0, MAX_PRINT_LINE=79]

◆ trick_buf

ASCIICode trick_buf[ERROR_LINE+1]

circular buffer for pseudoprinting.

only used by: lexer.c

◆ trick_count

Integer trick_count

threshold for pseudoprinting, explained later.

only used by: lexer.c