fscanf.c File Reference

Implements the functions: fscanf, getch, ungetch. More...

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Functions
int	getc (int)
	getc - get one character from a device
static int	getch (int dev, int abuf)
	Get a character from a device with pushback.
static int	ungetch (int dev, int abuf)
	Pushback a character for getch.
int	_doscan (register char *, register int **, int(*getc)(int, int), int(*ungetc)(int, int), int, int)
	Scan and recognize input according to a format.
int	fscanf (int dev, char *fmt, int args)
	Read from a device (file) according to a format.

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Detailed Description

Implements the functions: fscanf, getch, ungetch.

Id

fscanf.c 427 2008-02-19 22:46:55Z mschul

Definition in file fscanf.c.

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Function Documentation

int _doscan	(	register char *	fmt,
		register int **	argp,
		int(*)(int, int)	getch,
		int(*)(int, int)	ungetch,
		int	arg1,
		int	arg2
	)

Scan and recognize input according to a format.

Parameters:

	*fmt	format string for the scanf
	**argp	arguments to scanf
	getch	function to unget a character
	ungetch	function to unget a character
	arg1	1st argument to getch/ungetch
	arg2	2nd argument to getch/ungetch

Definition at line 49 of file doscan.c.

References EOF, getch(), and ungetch().

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int fscanf	(	int	dev,
		char *	fmt,
		int	args
	)

Read from a device (file) according to a format.

Parameters:

	dev	device to read from
	*fmt	format string
	args	number of arguments in format string

Returns:

result of _doscan

Definition at line 26 of file fscanf.c.

References _doscan(), EMPTY, getch(), and ungetch().

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int getc

(

int

descrp

)

getc - get one character from a device

Parameters:

descrp

definition of device from which to acquire character

Returns:

function to get character on success, SYSERR on failure

Definition at line 17 of file getc.c.

References isbaddev, and SYSERR.

static int getch	(	int	dev,
		int	abuf
	)			[static]

Get a character from a device with pushback.

Parameters:

	dev	device to read from
	*buf	buffer for reading into

Definition at line 39 of file fscanf.c.

References EMPTY, EOF, and getc().

Referenced by _doscan(), and fscanf().

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static int ungetch	(	int	dev,
		int	abuf
	)			[static]

Pushback a character for getch.

Parameters:

	dev	device to push back to
	*buf	buffer for pushing back from

Definition at line 54 of file fscanf.c.

References EMPTY.

Referenced by _doscan(), and fscanf().

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