[Coco] results on INPUT vs. READ for disk files in BASIC09
Wayne Campbell
asa.rand at gmail.com
Tue Jun 5 14:21:26 EDT 2018
I am almost certain that READ reads until the size of the receiving string
is full or the end of data is reached. INPUT reads until a carraige return
is found. However, I can't test that right now. I will test it as soon as I
can get onto my notebook and run VCC.
On Tue, Jun 5, 2018, 7:23 AM L. Curtis Boyle <curtisboyle at sasktel.net>
wrote:
> Wayne are you sure that you aren’t thinking of doing an I$Read Syscall
> instead? I am pretty sure hat James is right in that READ from a file reads
> until a carriage return.
>
> Sent from my iPhone
>
> > On Jun 5, 2018, at 7:46 AM, Wayne Campbell <asa.rand at gmail.com> wrote:
> >
> > You need to compare what you just wrote to what I said. I did not include
> > the portion of the READ statement that reads a DATA statement since that
> > was not part of the discussion. The part that reads an askii record is
> the
> > part I was discussing. And it will read an entire file into a single
> string
> > if the string is long enough. You can also use get to get the entire file
> > in one chunk, rather than reading the file one bite at a time. But I do
> > believe I remember being able to read a file and it will on one read fill
> > up an entire string if that's what you're reading into. I will have to
> run
> > some tests on that to determine if my memory is correct or not.
> >
> >> On Tue, Jun 5, 2018, 1:21 AM James Jones <jejones3141 at gmail.com> wrote:
> >>
> >> That seems inconsistent with the BASIC09 manual (I got the printed one
> out
> >> this time), which says
> >>
> >> - [READ] reads either an ASCII record from a sequential file or
> device,
> >> or an item from a DATA statement
> >> - Each input record is terminated by a carriage return character.
> >>
> >>
> >>> On Mon, Jun 4, 2018 at 9:22 PM, Wayne Campbell <asa.rand at gmail.com>
> wrote:
> >>>
> >>> Don't forget that INPUT looks for a carraige return character to
> >> terminate
> >>> input. READ does not do this and can read an entire file into a string,
> >>> provided the file is shorter than the string variable.
> >>>
> >>>
> >>>> On Mon, Jun 4, 2018, 2:11 PM James Jones <jejones3141 at gmail.com>
> wrote:
> >>>>
> >>>> INPUT ignores the prompt if it is given a path connected to a disk
> file
> >>> not
> >>>> opened for update.
> >>>>
> >>>> READ, if given a path, will do just as well without needing a prompt.
> >>>>
> >>>> --
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