emacs is incredibly powerful, but configuration can be a royal pain sometime.
Here’s me trying to set the indentation levels when editing HTML. (Because it’s not obvious at all.)
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M-x customize-group RET nxml
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Go to Nxml Child Indent, set that to what you want. In my case, I use 4 spaces per TAB.
These are the settings in my .emacs (you can see that I’m really trying to just set 4 spaces per TAB for all the modes):
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(setq-default tab-width 4)
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
'(django-indent-width 4)
'(nxhtml-default-encoding (quote utf-8))
'(nxml-child-indent 4))
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
)
(add-hook 'html-mode-hook
(lambda ()
;; Default indentation is usually 2 spaces, changing to 4.
(set (make-local-variable 'sgml-basic-offset) 4)))
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Emacs can be annoying in the sheer number of uncorrelated variables it uses for the various modes.