On Oct 14, 2010, at 3:15 PM, Bob Sneidar wrote:
Wha??? That just makes no sense at all! A CR should be chr(13) and
LF should be chr(10). Period. If in Revolution it is not, then I
need to go back and edit a whole lot of scripts!
Bob
unix line endings are (10)
mac line endings are (13)
window line endings are (10)(13)
-- both chars in that sequence == one line ending
This has been true since the earliest days of each platform.
If your stack or app or exe is running on a different platform, the
engine tries to make the conversion for you, so you don't need to do
any IF-loops.
Word processors like TextWrangler, BBEdit not only do the text file
translation automatically, they allow the user to force file
conventions.
Binary files (such as .zip .jpg .avi ) are not converted, nor would
it make sense to do so.
Forcing a format becomes necessary when editing files, such as OnRev
scripts, when line ending conventions have to be strictly observed
regardless of the editing platform.
Another example of non-conversion is receiving log info from an FTP
server.
Yet another example of non-conversion is receiving data over a socket,
such as TCP or UDP.
Hope this helps.
On Oct 14, 2010, at 2:23 PM, Peter Brigham MD wrote:
Just noticed, in reading the dictionary on "constant" --
CR = return = LF = linefeed = numtochar(10)
but
"CRLF" is listed as "Equivalent to a carriage return (ASCII 13,
Control-M) followed by a line feed (ASCII 10, Control-J)," implying
that "carriage return" = numtochar(13) <> linefeed. Apparently,
"carriage return" <> "CR" ... WTF?
Practically speaking, I never think about this, and always use cr
for delimiting lines and trust to the engine to translate between
platforms -- but the definitions and terminology are certainly
inconsistent. I'm glad I don't *have* to keep it straight....
-- Peter
Jim Ault
Las Vegas
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