File Extension Manager's New Extension converts underscores to hyphens

[PouncingPanda]

Go to tools->options
Select Languages->File Extension Manager
Click on New
Type "sgl_template" into the "Extension" field
type "xml" into the "Language" field
click on OK

This does not create a new file extension of sgl_template associated with xml, instead it creates a new file extension of sgl-template (hyphen, not underscore).

[Sandra]

I did a little research into this one and found out the following: SlickEdit treats dashes and underscores the same in terms of file extensions.  So the extension will be displayed as sql-template.  But if you create a file named foo.sql_template or foo.sql-template, SlickEdit will recognize it as an XML file.

Obviously, this means that you can't create two different extensions, one sql-template and one sql_template.

[SeeCwriter]

I tried creating a new file extension and associating it with an existing extension in the File Extension Manager, but SlickEdit still doesn't recognize the new extension. Is there something else I'm supposed to do?

Steve

[Sandra]

Could you please give me a little more info on what you've done?  Does your new extension show up in the list on Tools > Options > Languages > File Extension Manager?

[SeeCwriter]

Yes, the file extension shows up in the File Extension Manager extension list. But when I open a file with that extension, there's only black and white text. No color coding, no syntax recognition, etc. It acts like it doesn't recognize the extension.

[PouncingPanda]

*bump*

I am observing the same effect - no color coding goodness for me.  Really annoying actually.

[Sandra]

When you have your extension selected on the File Extension Manager, what language is listed in the combo box on the top right?

[PouncingPanda]

Sandra - XML
I don't know about SeeCwriter.  My exact repro steps are in the initial post.

[Sandra]

I assume your other regular XML files are working okay with lots of pretty colors and whatnot.  When you have a file of extension .sgl_template open in the current buffer and you go to the Document menu, does the "Select Mode (<language>)..." item indicate that you are in XML?

Sorry for the obvious questions, but I can't reproduce the problem here.  Thanks for you help!

[PouncingPanda]

Yes, normal xml stuff is syntax highlighted just fine.  ATM so is sgl-template and sgl_template.  I guess I assumed the dialog changing the extension and the color coding not appearing after hitting 'apply' meant it wasn't going to work (I chose a different extension at that point.  Hell if all it takes is a reboot of SE which appears to be the case and it likes sgl_template despite claiming it is sgl-template I'm happy.  Thanks for looking into this Sandra.

[Sandra]

OH!
So you already had a file of type .sgl_template open and then created the extension?  That makes more sense to me.  We're not checking the open buffers for the new extension.  And then once you exited, if the file was still open, SlickEdit would save its mode and not check for new extensions upon auto restore (if Auto restore files is True). 

In 12.0.3, we did run a check of open buffers to see if any of them used the new extension and then changed their modes.  I'll file a defect to make it work that way in 13.0.1.

I'm glad we finally got this worked out.  Thanks for all your help and patience.

[PouncingPanda]

Thank you!