宏定义
#define	help1(x1) set_help(1, x1)
	[#79] 更多...

#define	help2(x1, x2) set_help(2, x1, x2)

#define	help3(x1, x2, x3) set_help(3, x1, x2, x3)

#define	help4(x1, x2, x3, x4) set_help(4, x1, x2, x3, x4)

#define	help5(x1, x2, x3, x4, x5) set_help(5, x1, x2, x3, x4, x5)

#define	help6(x1, x2, x3, x4, x5, x6) set_help(6, x1, x2, x3, x4, x5, x6)

#define	checkinterrupt() ((interrupt != 0) ? (pause_for_instructions(), 0) : 0)
	[p36#96] 更多...

枚举
enum	UserInteractionMode { BATCH_MODE , NON_STOP_MODE , SCROLL_MODE , ERROR_STOP_MODE }
	[p30#73]: four settings, representing increasing amounts of user interaction. 更多...

enum	ErrorLevel { SPOTLESS = 0 , WARNING_ISSUED , ERROR_MESSAGE_ISSUED , FATAL_ERROR_STOP }
	[p31#76]: four possible values for the worst level of error that has been detected. 更多...

函数
void	error_init ()
	[#74, #77, #80, #97] Set initial values of key variables. 更多...

void	error_selector_init ()
	[p30#75]: Initialize the print selector based on interaction. 更多...

void	print_err (StrNumber s)

void	print_err_str (Str s)

void	set_help (SChar k,...)

void	jumpout (void)
	[#81]: goto end of TEX. 更多...

void	error (void)
	[#82]: completes the job of error reporting. 更多...

void	int_error (Integer n)
	[#91] error messages end with a parenthesized integer. 更多...

void	normalize_selector (void)
	[#92] fix selector state just enough to keep running a bit longer. 更多...

void	succumb (void)
	[#93]: prints TEX’s last words before dying. 更多...

void	fatalerror (StrNumber s)
	[#93] prints `s`, and that’s it. 更多...

void	overflow (StrNumber s, Integer n)
	[#94] stop due to finiteness. 更多...

void	confusion (StrNumber s)
	[#95] consistency check violated; s tells where. 更多...

void	pause_for_instructions (void)
	[#98] 更多...

变量
UChar	interaction
	[p30#73] current level of interaction. 更多...

Boolean	deletions_allowed
	[#76] is it safe for error to call get_token? 更多...

Boolean	set_box_allowed
	[#76] is it safe to do a `\setbox` assignment? 更多...

ErrorLevel	history
	[#76] has the source input been clean so far? [SPOTLESS, FATAL_ERROR_STOP] 更多...

SChar	errorcount
	[#76] the number of scrolled errors since the last paragraph ended. 更多...

StrNumber	help_line [6]
	[#79] helps for the next error. 更多...

UChar	help_ptr
	[#79] the number of help lines present. 更多...

Boolean	use_err_help
	[#79] should the errhelp list be shown? 更多...

Integer	interrupt
	[#96] should TeX pause for instructions? 更多...

Boolean	OK_to_interrupt
	[#96] should interrupts be observed? 更多...

详细描述

宏定义说明

◆ checkinterrupt

#define checkinterrupt ( ) ((interrupt != 0) ? (pause_for_instructions(), 0) : 0)

[p36#96]

◆ help1

#define help1 ( x1 ) set_help(1, x1)

[#79]

◆ help2

#define help2	(	x1,
		x2
	)	set_help(2, x1, x2)

◆ help3

#define help3	(	x1,
		x2,
		x3
	)	set_help(3, x1, x2, x3)

◆ help4

#define help4	(	x1,
		x2,
		x3,
		x4
	)	set_help(4, x1, x2, x3, x4)

◆ help5

#define help5	(	x1,
		x2,
		x3,
		x4,
		x5
	)	set_help(5, x1, x2, x3, x4, x5)

◆ help6

#define help6	(	x1,
		x2,
		x3,
		x4,
		x5,
		x6
	)	set_help(6, x1, x2, x3, x4, x5, x6)

枚举类型说明

◆ ErrorLevel

enum ErrorLevel

[p31#76]: four possible values for the worst level of error that has been detected.

[REPORTING ERRORS]

枚举值
SPOTLESS	nothing has been amiss yet.
WARNING_ISSUED	begin_diagnostic has been called.
ERROR_MESSAGE_ISSUED	error has been called.
FATAL_ERROR_STOP	termination was premature.

◆ UserInteractionMode

enum UserInteractionMode

[p30#73]: four settings, representing increasing amounts of user interaction.

[REPORTING ERRORS]

枚举值
BATCH_MODE	omits all stops and omits terminal output.
NON_STOP_MODE	omits all stops.
SCROLL_MODE	omits error stops.
ERROR_STOP_MODE	stops at every opportunity to interact.

函数说明

◆ confusion()

void confusion ( StrNumber s )

[#95] consistency check violated; s tells where.

◆ error()

void error ( void )

[#82]: completes the job of error reporting.

◆ error_init()

void error_init ( )

[#74, #77, #80, #97] Set initial values of key variables.

[p30#74]

[p31#77]

< history is initialized elsewhere .

[p32#80]

[p37#97]

◆ error_selector_init()

void error_selector_init ( )

[p30#75]: Initialize the print selector based on interaction.

◆ fatalerror()

void fatalerror ( StrNumber s )

[#93] prints s, and that’s it.

◆ int_error()

void int_error ( Integer n )

[#91] error messages end with a parenthesized integer.

◆ jumpout()

void jumpout ( void )

[#81]: goto end of TEX.

jump out: [81], 82, 84, 93

◆ normalize_selector()

void normalize_selector ( void )

[#92] fix selector state just enough to keep running a bit longer.

used in anomalous cases.

fatalerror
overflow
confusion

◆ overflow()

void overflow	(	StrNumber	s,
		Integer	n
	)

[#94] stop due to finiteness.

◆ pause_for_instructions()

void pause_for_instructions ( void )

[#98]

◆ print_err()

void print_err ( StrNumber s )

inline

◆ print_err_str()

void print_err_str ( Str s )

inline

◆ set_help()

void set_help	(	SChar	k,
			...
	)

◆ succumb()

void succumb ( void )

[#93]: prints TEX’s last words before dying.

变量说明

◆ deletions_allowed

Boolean deletions_allowed

[#76] is it safe for error to call get_token?

◆ errorcount

SChar errorcount

[#76] the number of scrolled errors since the last paragraph ended.

errorcount = [-1, 100]

◆ help_line

StrNumber help_line[6]

[#79] helps for the next error.

◆ help_ptr

UChar help_ptr

[#79] the number of help lines present.

◆ history

ErrorLevel history

[#76] has the source input been clean so far? [SPOTLESS, FATAL_ERROR_STOP]

◆ interaction

UChar interaction

[p30#73] current level of interaction.

interaction = [BATCH_MODE=0, ERROR_STOP_MODE=3]

[REPORTING ERRORS]

◆ interrupt

Integer interrupt

[#96] should TeX pause for instructions?

◆ OK_to_interrupt

Boolean OK_to_interrupt

[#96] should interrupts be observed?

◆ set_box_allowed

Boolean set_box_allowed

[#76] is it safe to do a \setbox assignment?

◆ use_err_help

Boolean use_err_help

[#79] should the errhelp list be shown?