| Forum List • Thread List • Reply • Refresh • New Topic • Search • Previous • Next  1  |  1. File.WriteStr#740 Posted by: 2003-01-17 18:43:05 | This simple program works well, apparently, but makes something I don't understand.
File.Open("dati.txt", fmopenread)
mystring$=File.Readstr(File.Size)
File.Close
mystring$=Replacesubstr$(mystring$, "retta", "rettissima")
File.Open("dati.txt", fmopenwrite)
lung%=len(mystring$)
File.WriteStr(mystring$, lung%)
File.Close
It adds a space at the end of my text file every time I run it.
I made it work properly by giving the parameter lung% -1 in the WriteStr command, but still I'm puzzled.
Can someone tell me why it does this?
Thanks in advance.
Cajino | 2. EOF #743 | | I wonder whether it is EOF added by text mode filestream? | 3. no no no!! #744 Posted by: 2003-01-23 00:53:43 | Hi There!
It is the replacesubstr function, technically.
if you check the result of it it will return one
more byte in length (the null character). in turn
the function is also 1 based instead of zero
based so 8 will give a len of 9. No Problem?
yes, because filestream is zero based!
hence why you get an extra byte. Remember.
filestream is binary. Its not bothered about
eof+a space. The problems can occur when reading
the file/length back in, if you dont correct with -1.
regards
john
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