结构体
struct	MovePtr

宏定义
#define	ID_BYTE 2
	[#587]: identifies the kind of DVI files described here 更多...

#define	MOVEMENT_NODE_SIZE 3
	[#605]: number of words per entry in the down and right stacks 更多...

#define	vetglue(x)
	[p223#605] DVI byte number for a movement command 更多...

#define	LOCATION(x) ((x)->locationf)
	DVI byte number for a movement command 更多...

#define	WIDTH(x) ((x)->widthf)

#define	LINK(x) ((x)->linkf)

#define	INFO(x) ((x)->infof)

#define	FREE_NODE(x, y) free(x)

#define	synchh()
	[p229#619] label not_use 更多...

#define	synchv()

类型定义
typedef Pointer	DVI_Index
	[#594]: an index into the output buffer. 更多...

枚举
enum	DVISetting { Y_HERE = 1 , Z_HERE , YZ_OK , Y_OK , Z_OK , D_FIXED }
	p224#608 更多...

enum	StackState { NONE_SEEN = 0 , Y_SEEN = 6 , Z_SEEN = 12 }
	P226#611 更多...

函数
void	dviout_init (void)
	[#593, #596, #606] 初始化 dviout 内部变量更多...

static void	write_dvi (DVI_Index a, DVI_Index b)
	[#597]: The actual output of dvi_buf[a，b] to dvi file. 更多...

static void	dvi_swap (void)
	[#598]: outputs half of the buffer. 更多...

void	dviout (int x)
	[#598] 更多...

void	dvi_four (Integer x)
	[#600]: outputs four bytes in two’s complement notation, without risking arithmetic overflow. 更多...

void	dvi_pop (Integer l)
	[#601] 更多...

void	dviout_helper (ASCIICode c)

void	dvi_font_def (InternalFontNumber f)
	[#602] 更多...

static MovePtr	get_move_node (void)

static void	movement (Scaled w, enum DVICommands dvicmd)
	[p224#607] produces a DVI command for some specified downward or rightward motion. 更多...

void	prune_movements (Integer l)
	[p227#615]: delete movement nodes with LOCATION ≥ l. 更多...

Scaled	synch_h (Scaled cur_h, Scaled dvi_h)
	[#616] 返回 cur_h 在 tex.c 中通过赋值更新 dvi_h. 更多...

Scaled	synch_v (Scaled cur_v, Scaled dvi_v)

void	hlistout (void)

void	vlistout (void)

void	shipout (Pointer p)

void	dviout_ID_BYTE (void)

void	dviout_SET_RULE (void)

void	dviout_PUT_RULE (void)

void	dviout_EOP (void)

void	dviout_PUSH (void)

void	dviout_POP (void)

void	dviout_PRE (void)

void	dviout_POST (void)

void	dviout_XXX1 (void)

void	dviout_XXX4 (void)

long	get_dvi_mark (void)

Boolean	dvi_openout (void)

void	_dvibop (Integer counts[])
	used in [p236#638]: shipout 更多...

void	_dvi_lastbop (void)

void	dvi_set_font (int f)

void	dvi_set_char (long c)

long	dviflush (void)

变量
static EightBits	dvibuf [DVI_BUF_SIZE+1]
	buffer for DVI output 更多...

static DVI_Index	half_buf
	half of dvi buf size 更多...

static DVI_Index	dvi_limit
	end of the current half buffer 更多...

static DVI_Index	dvi_ptr
	the next available buffer address. 更多...

static Integer	dvi_offset
	`DVI_BUF_SIZE` times the number of times the output buffer has been fully emptied. 更多...

static Integer	dvigone
	the number of bytes already output to dvi file 更多...

static FILE *	dvifile

static Integer	last_bop
	LOCATION of previous bop in the DVI output. 更多...

static MovePtr	down_ptr

static MovePtr	right_ptr

Scaled	maxh

Scaled	maxv

Integer	totalpages

Integer	maxpush

Integer	deadcycles

Boolean	doingleaders

Static Integer	lq

Static Integer	lr

Static Scaled	ruleht

Static Scaled	ruledp

Static Scaled	rulewd

Scaled	dvih = 0

Scaled	dviv = 0

Scaled	curh

Scaled	curv

Scaled	curmu

Static InternalFontNumber	dvif = NULL_FONT

Integer	curs

详细描述

宏定义说明

◆ FREE_NODE

#define FREE_NODE	(	x,
		y
	)	free(x)

◆ ID_BYTE

#define ID_BYTE 2

[#587]: identifies the kind of DVI files described here

◆ INFO

#define INFO ( x ) ((x)->infof)

◆ LINK

#define LINK ( x ) ((x)->linkf)

◆ LOCATION

#define LOCATION ( x ) ((x)->locationf)

DVI byte number for a movement command

◆ MOVEMENT_NODE_SIZE

#define MOVEMENT_NODE_SIZE 3

[#605]: number of words per entry in the down and right stacks

◆ synchh

#define synchh ( )

值:

    do {                            \
        dvih = synch_h(curh, dvih); \
    } while (0)

[p229#619] label not_use

◆ synchv

#define synchv ( )

值:

    do {                            \
        dviv = synch_v(curv, dviv); \
    } while (0)

◆ vetglue

#define vetglue ( x )

值:

    (gluetemp = (x),                  \
     ((gluetemp > (1000000000.0))     \
          ? (gluetemp = 1000000000.0) \
          : ((gluetemp < -1000000000.0) ? (gluetemp = -1000000000.0) : 0)))

[p223#605] DVI byte number for a movement command

[p231#625]

◆ WIDTH

#define WIDTH ( x ) ((x)->widthf)

类型定义说明

◆ DVI_Index

typedef Pointer DVI_Index

[#594]: an index into the output buffer.

[0, DVI_BUF_SIZE=800]

枚举类型说明

◆ DVISetting

enum DVISetting

p224#608

枚举值
Y_HERE	info when the movement entry points to a y command
Z_HERE	info when the movement entry points to a z command
YZ_OK	info corresponding to an unconstrained down command
Y_OK	info corresponding to a down that can’t become a z
Z_OK	info corresponding to a down that can’t become a y
D_FIXED	info corresponding to a down that can’t change.

◆ StackState

enum StackState

P226#611

枚举值
NONE_SEEN	no y here or z here nodes have been encountered yet
Y_SEEN	we have seen y here but not z here
Z_SEEN	we have seen z here but not y here

函数说明

◆ _dvi_lastbop()

void _dvi_lastbop ( void )

◆ _dvibop()

void _dvibop ( Integer counts[] )

used in [p236#638]: shipout

◆ dvi_font_def()

void dvi_font_def ( InternalFontNumber f )

[#602]

◆ dvi_four()

void dvi_four ( Integer x )

[#600]: outputs four bytes in two’s complement notation, without risking arithmetic overflow.

TODO: check

◆ dvi_openout()

Boolean dvi_openout ( void )

◆ dvi_pop()

void dvi_pop ( Integer l )

[#601]

◆ dvi_set_char()

void dvi_set_char ( long c )

◆ dvi_set_font()

void dvi_set_font ( int f )

◆ dvi_swap()

static void dvi_swap ( void )

static

[#598]: outputs half of the buffer.

◆ dviflush()

long dviflush ( void )

◆ dviout()

void dviout ( int x )

[#598]

◆ dviout_EOP()

void dviout_EOP ( void )

inline

◆ dviout_helper()

void dviout_helper ( ASCIICode c )

◆ dviout_ID_BYTE()

void dviout_ID_BYTE ( void )

inline

◆ dviout_init()

void dviout_init ( void )

[#593, #596, #606] 初始化 dviout 内部变量

[#593]

[#596]

[#606]

◆ dviout_POP()

void dviout_POP ( void )

inline

◆ dviout_POST()

void dviout_POST ( void )

inline

◆ dviout_PRE()

void dviout_PRE ( void )

inline

◆ dviout_PUSH()

void dviout_PUSH ( void )

inline

◆ dviout_PUT_RULE()

void dviout_PUT_RULE ( void )

inline

◆ dviout_SET_RULE()

void dviout_SET_RULE ( void )

inline

◆ dviout_XXX1()

void dviout_XXX1 ( void )

inline

◆ dviout_XXX4()

void dviout_XXX4 ( void )

inline

◆ get_dvi_mark()

long get_dvi_mark ( void )

◆ get_move_node()

static MovePtr get_move_node ( void )

static

◆ hlistout()

void hlistout ( void )

◆ movement()

static void movement	(	Scaled	w,
		enum DVICommands	dvicmd
	)

static

[p224#607] produces a DVI command for some specified downward or rightward motion.

parameters:

w: the amount of motion
dvicmd: DOWN1 or RIGHT1

have we seen a y or z?

current and top nodes on the stack

index into dvi buf , modulo dvi buf size

◆ prune_movements()

void prune_movements ( Integer l )

[p227#615]: delete movement nodes with LOCATION ≥ l.

◆ shipout()

void shipout ( Pointer p )

[ #640 ]: Ship box p out

[p236#639] Flush the box from memory, showing statistics if requested

◆ synch_h()

Scaled synch_h	(	Scaled	cur_h,
		Scaled	dvi_h
	)

[#616] 返回 cur_h 在 tex.c 中通过赋值更新 dvi_h.

◆ synch_v()

Scaled synch_v	(	Scaled	cur_v,
		Scaled	dvi_v
	)

◆ vlistout()

void vlistout ( void )

◆ write_dvi()

static void write_dvi	(	DVI_Index	a,
		DVI_Index	b
	)

static

[#597]: The actual output of dvi_buf[a，b] to dvi file.

变量说明

◆ curh

Scaled curh

◆ curmu

Scaled curmu

◆ curs

Integer curs

◆ curv

Scaled curv

◆ deadcycles

Integer deadcycles

◆ doingleaders

Boolean doingleaders

◆ down_ptr

MovePtr down_ptr

static

◆ dvi_limit

DVI_Index dvi_limit

static

end of the current half buffer

◆ dvi_offset

Integer dvi_offset

static

DVI_BUF_SIZE times the number of times the output buffer has been fully emptied.

◆ dvi_ptr

DVI_Index dvi_ptr

static

the next available buffer address.

◆ dvibuf

EightBits dvibuf[DVI_BUF_SIZE+1]

static

buffer for DVI output

◆ dvif

Static InternalFontNumber dvif = NULL_FONT

◆ dvifile

FILE* dvifile

static

◆ dvigone

Integer dvigone

static

the number of bytes already output to dvi file

◆ dvih

Scaled dvih = 0

◆ dviv

Scaled dviv = 0

◆ half_buf

DVI_Index half_buf

static

half of dvi buf size

◆ last_bop

Integer last_bop

static

LOCATION of previous bop in the DVI output.

last_bop: [592], 593, 640, 642

◆ lq

Static Integer lq

◆ lr

Static Integer lr

◆ maxh

Scaled maxh

◆ maxpush

Integer maxpush

◆ maxv

Scaled maxv

◆ right_ptr

MovePtr right_ptr

static

◆ ruledp

Static Scaled ruledp

◆ ruleht

Static Scaled ruleht

◆ rulewd

Static Scaled rulewd

◆ totalpages

Integer totalpages

结构体

宏定义

类型定义

枚举

函数

变量

详细描述

宏定义说明

◆ FREE_NODE

◆ ID_BYTE

◆ INFO

◆ LINK

◆ LOCATION

◆ MOVEMENT_NODE_SIZE

◆ synchh

◆ synchv

◆ vetglue

◆ WIDTH

类型定义说明

◆ DVI_Index

枚举类型说明

◆ DVISetting

◆ StackState

函数说明

◆ _dvi_lastbop()

◆ _dvibop()

◆ dvi_font_def()

◆ dvi_four()

◆ dvi_openout()

◆ dvi_pop()

◆ dvi_set_char()

◆ dvi_set_font()

◆ dvi_swap()

◆ dviflush()

◆ dviout()

◆ dviout_EOP()

◆ dviout_helper()

◆ dviout_ID_BYTE()

◆ dviout_init()

◆ dviout_POP()

◆ dviout_POST()

◆ dviout_PRE()

◆ dviout_PUSH()

◆ dviout_PUT_RULE()

◆ dviout_SET_RULE()

◆ dviout_XXX1()

◆ dviout_XXX4()

◆ get_dvi_mark()

◆ get_move_node()

◆ hlistout()

◆ movement()

◆ prune_movements()

◆ shipout()

◆ synch_h()

◆ synch_v()

◆ vlistout()

◆ write_dvi()

变量说明

◆ curh

◆ curmu

◆ curs

◆ curv

◆ deadcycles

◆ doingleaders

◆ down_ptr

◆ dvi_limit

◆ dvi_offset

◆ dvi_ptr

◆ dvibuf

◆ dvif

◆ dvifile

◆ dvigone

◆ dvih

◆ dviv

◆ half_buf

◆ last_bop

◆ lq

◆ lr

◆ maxh

◆ maxpush