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File input/output: Difference between revisions
Added S-BASIC example
imported>Collin (→Rust: Use `std::fs::{read, write}` to make the solution simpler) |
imported>KayproKid (Added S-BASIC example) |
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process::exit(code);
}</syntaxhighlight>
=={{header|S-BASIC}}==
Surprisingly, S-BASIC has no EOF function, so we have to rely on error trapping to signal end of file. S-BASIC stores its error codes at 103H, and we can position a base-located variable there to retrieve it. The result is something of a kludge, but it works. Other S-BASIC preculiarities are explained by the comments.
<syntaxhighlight lang="BASIC">
comment
Preserve file channel #0 (the console) while declaring channels
#2 and #3 as sequential-access ASCII files.
end
files d, sa, sa
var s = string:255
based errcode = integer
base errcode at 103H
comment
CP/M expects upper case file names, but S-BASIC does not
automatically convert file name arguments to upper case, so we
have to do that ourself.
end
create "OUTPUT.TXT"
open #1,"INPUT.TXT"
open #2,"OUTPUT.TXT"
comment
S-BASIC allows alphanumeric line "numbers" (which are treated simply
as labels) as the target of GOTO and GOSUB statements, but the first
character must be a digit
end
on error goto 9done
rem - runtime error code 15 signals read past end of file
while errcode <> 15 do
begin
input3 #1; s
print #2; s
end
9done
close #1
close #2
end
</syntaxhighlight>
=={{header|Scala}}==
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