mb.userev at harbourhosting.co.uk
Thu Mar 29 19:00:50 CDT 2007
J. Landman Gay wrote:
> Martin Baxter wrote:
>> Last I checked (admittedly quite a while ago) this was not true on
>> Linux, just on Mac and Win. perhaps this has changed?
>> Anybody currently working on Linux know if RR can nowadays properly
>> open mac or win text files and translate line-endings without scripted
> There are certain instances where line endings are not translated. For
> example, if you open a file for binary read, or use the "binfile" form
> of the URL container, the original endings remain the same. When you had
> problems, were you using either of these methods?
This is opening the files as text - i.e. using file:. With binfile: data
is unaffected on any platform as expected.
I determined, by testing, that on Linux (and I would assume - other
Unixes as well) there appears to be an assumption that any text files
you import already have LF line endings, so no conversion is done. On
Mac and Windows the native line endings (for either platform) are
The logic behind this seems to be that on Mac and Win the native text
file line endings need converting to the internal format, but on Linux
they don't, as native files already are LF terminated. I concluded that
the fact that you can move text files between mac and win without
worrying about line endings may be an accident of the implementation
rather than a deliberate intention.
Since I was writing an app to run on Mac & Win & Linux at the time, I
got around this by re-writing my file I/O to always use binfile: and to
manage the line endings myself by script.
But this was a surprise when I discovered it. My text file data had to
be portable between the different platform versions and I had assumed,
on the basis of Mac and Win experience, that RR would take care of this
in the same way in Linux (i.e. would convert win and mac files when
importing them). But when I actually moved a project from Win to Linux
it turned up full of unexpected ascii 13s, which is when I investigated
This was a couple of years back now I suppose, version 2.1.2 I think. I
haven't tried newer versions of RR on Linux. So although I suspect it's
still the same, I don't really know.
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