comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Modify txt file

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Modify txt file [message #85042 is a reply to message #85039]

Wed, 26 June 2013 06:55

Bill Nel
Messages: 31
Registered: October 2010

Member

You can do this with point_lun. You have to keep track of the file offset to your line 3 as your write the original file. And the string you're substituting has to have exactly the same number of bytes as the original. I've done it (to fill in a fixed length text field with a value that isn't known until more of the file is written), but I don't recommend it as a general technique.

Report message to a moderator

[Message index]

		Modify txt file By: Helder Marchetto on Wed, 26 June 2013 00:43
		Re: Modify txt file By: Bill Nel on Wed, 26 June 2013 06:55
		Re: Modify txt file By: David Fanning on Wed, 26 June 2013 07:19
		Re: Modify txt file By: Helder Marchetto on Wed, 26 June 2013 13:43

Previous Topic:	IDL 8.2.2 direct graphics output to PDF?
Next Topic:	coyote graphics /iso command

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 20:10:21 PDT 2025

Total time taken to generate the page: 0.41888 seconds