hook to highlight current line in external editor (sticky)

[antocuni]

Originally reported by: Anonymous

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Hi,
I would like to add a command to highlight the current line of the debugged file in an external editor. I guess this could be easily achieved by calling 'edit +linenumber filename'.
Can I do this by editing .pdbrc.py, then defining a Pdb.do_highlight method in the setup method of the Config class? If so, where are the current line and filename stored?
Finally, could this be made "sticky"? I.e., at each step, highlight the current line? Could this also be achieved via the rc file?

Thanks
Christian

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• Bitbucket: https://bitbucket.org/antocuni/pdb/issue/16

[antocuni]

Original comment by Anonymous:

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Ops, sorry, just noticed that the edit command does exactly what I need, so the only missing part would be a "sticky" mode for the external editor.

Thanks

[antocuni]

Original comment by Antonio Cuni (Bitbucket: antocuni, GitHub: antocuni):

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Yes, I was about to tell you to look at the command "edit" :-)

As for executing it at at each step, there is no straightforward way to do it, I fear. I suppose I could add a hook in the config file which gets called at each step: would that work for you?

[antocuni]

Original comment by Anonymous:

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Yes, that would be nice, it could allow a user to make custom versions of what is shown by the display command as well?
BTW, I noticed that _printlonglist has a linerange parameter, but this is not used by the longlist command. Is there any reason for that? I see that on the issue list there is a request for custom length longlist display, so wouldn't it be sufficient to use that parameter? same for sticky mode...

Finally (then I'm done with demands!), while I appreciate that debugger commands are always overridden by local variables, there are situations where the opposite is useful. How about a config option to choose if n steps to next line or shows the local variable n? This is especially annoying since pressing enter on an empty line does not repeat !!n, but acts as if I input just n. So typing !!n steps to the next line, while a subsequent enter on empty line shows the value of variable n. Maybe that is a bug?

Thanks!