EOF.md

EOF

Description

Function EOF returns TRUE if the file pointer of an open text file has reached the end of the file (EOF marker). Function EOF is used with Procedures Read and ReadLn to ensure proper file reading and closure. Parameter fileName specifies a text file which is open for reading or writing.

If the filename includes a fully qualified path, the path has to use the appropriate notation for the local operating system: : Macintosh HD:Applications:VectorWorks:Plug-Ins:Data:Notes.txt : C:\Program Files\VectorWorks\Plug-Ins\Data\Notes.txt

If the filename includes a path relative to the location of the VectorWorks executable, the subfolder delimiters have to be backslashes: : Plug-Ins\Data\Notes.txt

If the filename does not include a path, the file is assumed to exist in the same folder as the VectorWorks executable.

FUNCTION EOF(fileName : STRING): BOOLEAN;

def vs.EOF(fileName):
    return BOOLEAN

Parameters

Name	Type	Description
fileName	STRING	Name of file.

Examples

VectorScript

BEGIN
Open('MyData');
WHILE NOT EOF('MyData') DO
ReadLn(a,b,c,d);
Close('MyData');
END;

Python

def Example():
	vs.Open('D:\test.txt')
	while not vs.EOF('D:\test.txt'):
		a,b,c,d = vs.ReadLn()
	vs.Close('D:\test.txt')
	vs.Message(a)

Example()

WHILE NOT EOF (datafile) DO
BEGIN
	Read (size1);
	IF size1 = size THEN
	BEGIN
		ReadLn (a, b, t, rf, rt);
		sizeNotFound := FALSE;

{
message( ' #### gBoltType = ',gBoltType ,'   nominalSize  = ',nominalSize );
}
		{ Read the data file until screwSize equals or exceeds the size }
		WHILE( NOT EOF( fileName ) ) & ( NOT sizeFound ) DO
		BEGIN
			ReadLn( screwSize, gBoltDia, tpi, gHeadDia, gHeadHeight, gSquareWidth, gSquareHeight, gCornerRadius, gFilletR );
			sizeFound := (  screwSize = nominalSize );
		END;

WHILE NOT EOF (datafile) DO
BEGIN
	Read (size1);
	IF size1 = size THEN
	BEGIN
		ReadLn (d, tw, w, tf, a, b, rt, rf);
		sizeNotFound := FALSE;

import vs

# Function EOF returns TRUE if the file pointer of an open text file has
# reached the end of the file (EOF marker).
fileName = 'C:/Temp/example.txt'

ok = vs.EOF(fileName)
if ok:
    vs.Message('EOF succeeded')
else:
    vs.Message('EOF failed')

Version

Availability: from All Versions

Category

• File I@O