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Re: Calling Ediff which ignores whitespaces from VC Dir
From: |
Stefan Monnier |
Subject: |
Re: Calling Ediff which ignores whitespaces from VC Dir |
Date: |
Thu, 01 Aug 2013 11:37:21 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) |
> Debugger entered--Lisp error: (wrong-number-of-arguments (1 . 2) 0)
0 is the number of args you have provided. (1 . 2) is the min and max
number of args expected by the function.
> With no certainty, I've tried to copy the parameters of `vc-ediff':
> --8<---------------cut here---------------start------------->8---
> (defun vc-ediff-ignore-whitespace (historic &optional not-urgent)
> "Ignore regions that differ in white space & line breaks only."
> (interactive (list current-prefix-arg t))
> (let ((ediff-ignore-similar-regions t))
> (vc-ediff historic not-urgent)))
You could also use (call-interactively 'vc-ediff) instead.
> call-interactively: Symbol's value as variable is void:
> ediff-ignore-similar-regions
That's because ediff was (auto)loaded while ediff-ignore-similar-regions
was let-bound. So at the end of the let, ediff-ignore-similar-regions
was reset to its previous value (i.e. unbound).
That's a long standing problem. To work around such issues, you want to
explicitly load ediff before doing the let.
Stefan