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CAD tip CAD tip # 7812:

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A
The AutoLISP functions (write-line) and (write-char) automatically add the full CR/LF sequence (carriage return, line feed) when trying to output just the LF (line-feed, chr 10).

There is a trick of forcing AutoCAD to output really just the line-feed. Use the (write-char) function and add 256 to the character code. So instead of (write-char 10 f), use (write-char 266 f). An example:


(setq f (open "C:/TEMP/TESTFILE.TXT" "w"))
(write-char 266 f)
(close f)
writes a file testfile.txt containing just the LF character.
ACAD2011
100% *CAD
23.2.2011    18338×  
applies to: AutoCAD 2011 ·

See also:
Tip 14618:Easy copying of DWG entities with rotation.
Tip 14604:QRcode - dynamically generated QR codes in AutoCAD.
Tip 14414:Link geo-tagged photos from your mobile phone to AutoCAD DWG maps.
Tip 14361:Extended ATTOUT/ATTIN for block attribute management in Excel (also for LT).
Tip 14285:How to identify duplicate blocks in AutoCAD DWG drawings? SelDupBlk.


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