• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Mac vs unix Carriage returns on a text file format
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Mac vs unix Carriage returns on a text file format


  • Subject: Re: Mac vs unix Carriage returns on a text file format
  • From: kai <email@hidden>
  • Date: Sat, 2 Apr 2005 23:15:47 +0100


On Fri, 1 Apr 2005 10:04:07 -0800, Christopher Nebel wrote:

On Mar 31, 2005, at 2:56 PM, Dennis Jones wrote:

I had a similar problem with files I downloaded from an IBM mainframe
which came in with DOS type line ends. ...

Don't forget, AppleScript's "paragraph" elements of text are line- ending-agnostic. If you have a glob of text that's formatted whichever way (even a mix), "paragraph 4" will get you the fourth paragraph regardless.

The practical significance of Chris's point shouldn't be underestimated, since this feature makes converting line-breaks a breeze - regardless of existing or required line endings. In the 'changeLineBreaks' handler of the script/droplet below, for instance, the text conversion operation (which would otherwise need rather more in the way of "search and replace" type routines) is reduced to just a couple of lines or so:


------------------

property fileTypes : {"TEXT"} -- modify as required
property extTypes : {"txt"} -- modify as required

property conversionList : {"DOS: \"\\r\\n\"", "UNIX: \"\\n\"", "Macintosh: \"\\r\""}
property breakList : {return & (ASCII character 10), ASCII character 10, return}
property currConversion : {conversionList's item 3}
property currBreak : breakList's item 3


to changeLineBreaks at f
	set o to open for access f with write permission
	if (get eof o) > 0 then
		set text item delimiters to currBreak
		set t to (read o)'s paragraphs as string
		set text item delimiters to {""}
		set eof o to 0
		write t to o
	end if
	close access o
end changeLineBreaks

to chooseConversion()
	tell (choose from list conversionList with prompt ¬
		"Convert line breaks to:" default items currConversion)
		if it is false then error number -128
		set currConversion to it
	end tell
	repeat with n from 1 to 3
		if conversionList's item n is in ¬
			currConversion then exit repeat
	end repeat
	set currBreak to breakList's item n
end chooseConversion

on selectionWas over n
	set b to {"Cancel"}
	set x to "The selection contains "
	set z to " suitable for conversion."
	if n is 0 then
		set y to "nothing"
	else
		set y to "only " & n & " item"
		if n > 1 then set y to y & "s"
		set b's end to "Continue"
		set z to z & return & return & ¬
			"Continue with conversion?"
	end if
	tell application (path to frontmost application ¬
		as Unicode text) to display dialog x & y & z ¬
		buttons b default button (count b) with icon 2
end selectionWas

to open l
	set r to {}
	repeat with i in l
		tell (info for i) to if file type is in fileTypes or ¬
			name extension is in extTypes then set r's end to i
	end repeat
	tell (count r) to if it < (count l) then my (selectionWas over it)
	chooseConversion()
	repeat with f in r
		changeLineBreaks at f
	end repeat
end open

to run
	set f to choose file of type fileTypes with prompt ¬
		"Please choose a file to convert:"
	chooseConversion()
	changeLineBreaks at f
end run

------------------

---
kai
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Applescript-users mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden


  • Follow-Ups:
    • Re: Mac vs unix Carriage returns on a text file format
      • From: Bill Chase <email@hidden>
    • Re: Mac vs unix Carriage returns on a text file format
      • From: Doug McNutt <email@hidden>
  • Prev by Date: vacation script clarification
  • Next by Date: Re: Mac vs unix Carriage returns on a text file format
  • Previous by thread: Re: Mac vs unix Carriage returns on a text file format
  • Next by thread: Re: Mac vs unix Carriage returns on a text file format
  • Index(es):
    • Date
    • Thread