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Help on text editors [message #247613]

Mon, 31 May 2004 17:21

Eclipse User

Originally posted by: doug.satchwell.btinternet.com

Hi - I'm having a go at writing a text editor, but I am having trouble with
a couple of areas:

1) If a file does not have a file extension, how do I associate my editor
with it?? I believe other IDE's achieve this by opening the file and parsing
the first few lines to determine its type - does Eclipse do this?
2) The files I am interested in can only run on Linux/Unix, and so expect
the new line to be a simple '\n'. However, when I edit the file under
Windows, '\r\n' is inserted for a new line. Is there any way to prevent
this? I guess I could use the AutoIndentStrategy to perform such a
replacement - would this be the correct/best way to do it?
3) I would like to have the ability to 'nest' partitions. I see this ability
has been added by IDocumentExtension3 - but I have no idea how to configure
a partition scanner to make use of it. Has anyone got any pointers?

Any help would be appreciated!

Thanks,

Doug

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Re: Help on text editors [message #247815 is a reply to message #247613]

Tue, 01 June 2004 07:33

Tom Hofmann

Messages: 770
Registered: July 2009

Senior Member

Doug Satchwell wrote:
> 1) If a file does not have a file extension, how do I associate my editor
> with it?? I believe other IDE's achieve this by opening the file and parsing
> the first few lines to determine its type - does Eclipse do this?

You can associate editors not just by extension. See IContentType.

> 2) The files I am interested in can only run on Linux/Unix, and so expect
> the new line to be a simple '\n'. However, when I edit the file under
> Windows, '\r\n' is inserted for a new line. Is there any way to prevent
> this? I guess I could use the AutoIndentStrategy to perform such a
> replacement - would this be the correct/best way to do it?

Implement IDocument.getLegalLineDelimiters()

> 3) I would like to have the ability to 'nest' partitions. I see this ability
> has been added by IDocumentExtension3 - but I have no idea how to configure
> a partition scanner to make use of it. Has anyone got any pointers?

Nesting partitions is not supported. Partitioning can only provide a
coarse-grained document model and is merely used for editor highlighting
etc.

HTH, tom

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