LINEINPUT

Action

Read a Line from an opened File.

 

 

Syntax

LINEINPUT #bFileNumber, sLineText

LINE_INPUT #bFileNumber, sLineText

 

 

Remarks

BfileNumber	(Byte) File number, which identifies an opened file
SlineText	(String) A string, which is assigned with the next line from the file.

 

Only valid for files opened in mode INPUT. Line INPUT works only with strings. It is great for working on text files.

 

 

See also

INITFILESYSTEM , OPEN , CLOSE, FLUSH , PRINT, LOC, LOF , EOF , FREEFILE , FILEATTR , SEEK , BSAVE , BLOAD , KILL ,DISKFREE , DISKSIZE , GET , PUT , FILEDATE , FILETIME , FILEDATETIME , DIR , FILELEN , WRITE , INPUT

 

 

ASM

Calls	_FileLineInput
Input	r24: filenumber	X: Pointer to String to be written from file
	r25: Stringlength
Output	r25: Errorcode	C-Flag: Set on Error

 

 

Example

'Ok we want to check if the file contains the written lines
Ff = Freefile()' get file handle
Open "test.txt" For Input As #ff ' we can use a constant for the file too
Print Lof(#ff); " length of file"
Print Fileattr(#ff); " file mode"' should be 1 for input
Do
LineInput #ff , S ' read a line
' line input is used to read a line of text from a file
Print S ' print on terminal emulator
Loop Until Eof(ff)<> 0
'The EOF() function returns a non-zero number when the end of the file is reached
'This way we know that there is no more data we can read
Close #ff

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