How to set indent in xml to 4?

[fuzihaofzh]

I have set tab equal to 4 spaces. But when I use xml and lua mode, it turn out to set the tab as 2 spaces. How can I solve that?

[darfink]

In most cases each major-mode has mode-specific options for adjusting indentation:

• Web-mode (setq web-mode-markup-indent-offset 4)
• Lua-mode: (setq lua-indent-level 4)
• Nxml-mode: (setq nxml-child-indent 4 nxml-attribute-indent 4)

You may have to set tab-width as well.

[fuzihaofzh]

Hi, @darfink, I tried as you said, and the user-config is as follows:

(defun dotspacemacs/user-config ()
  "Configuration function for user code.
 This function is called at the very end of Spacemacs initialization after
layers configuration. You are free to put any user code."
  ;;(xterm-mouse-mode 0)
  (global-hl-line-mode 0)
  ;;tab
  (setq-default tab-width 4)
  (setq web-mode-markup-indent-offset 4)
  (setq lua-indent-level 4)
  (setq nxml-child-indent 4 nxml-attribute-indent 4)
  (setq-default c-basic-offset 4)
  ;;neotree
  (global-set-key (kbd "<f9>") 'neotree-toggle)
  (global-set-key (kbd "C-j") 'avy-goto-word-or-subword-1)
  (spacemacs/toggle-automatic-symbol-highlight)
  )

But it still cannot work. How could that happen?

[darfink]

Have you configured a custom major-mode for XML files or are you using the default? (nxml-mode).
Using a complete vanilla version of Spacemacs I achieve the desired behavior by using:

(defun dotspacemacs/user-config ()
  (setq-default nxml-child-indent 4))

[TheBB]

Use setq-default, not setq. Then confirm that in the relevant buffer(s), the variables actually have the values that you expect.

[fuzihaofzh]

@TheBB @darfink
This is my layer config and it seems still not work.

dotspacemacs-configuration-layers
   '(
     ;; ----------------------------------------------------------------
     ;; Example of useful layers you may want to use right away.
     ;; Uncomment some layer names and press <SPC f e R> (Vim style) or
     ;; <M-m f e R> (Emacs style) to install them.
     ;; ----------------------------------------------------------------
     osx
     python
     ipython
     c-c++
     markdown
     auto-completion
     better-defaults
     emacs-lisp
     git
     markdown
     org
     lua
     nxml
     html
     ;; (shell :variables
     ;;        shell-default-height 30
     ;;        shell-default-position 'bottom)
     spell-checking
     syntax-checking
     version-control
     ido
     smex
     gtags
     )

(defun dotspacemacs/user-config ()
  "Configuration function for user code.
 This function is called at the very end of Spacemacs initialization after
layers configuration. You are free to put any user code."
  ;;(xterm-mouse-mode 0)
  (global-hl-line-mode 0)
  ;;tab
  (setq-default tab-width 4)
  (setq-default web-mode-markup-indent-offset 4)
  (setq-default lua-indent-level 4)
  (setq-default nxml-child-indent 4 nxml-attribute-indent 4)
  (setq-default c-basic-offset 4)
  ;;neotree
  (global-set-key (kbd "<f9>") 'neotree-toggle)
  (global-set-key (kbd "C-j") 'avy-goto-word-or-subword-1)
  (spacemacs/toggle-automatic-symbol-highlight)
  )

[TheBB]

As I said, can you please confirm whether web-mode-markup-indent-offset actually has the value 4 in an XML file?

[TheBB]

Sorry, it seems xml files aren't in web-mode by default. That was a customization I had made myself.

[fuzihaofzh]

@TheBB I don't have web-mode-markup-indent-offset. I ckecked lua-indent-level it's 4, but it work with still 2 indent.

[mrvon]

Yes, setq lua-indent-level can't work!
because function dotspacemacs/user-config() is run before lua-mode 's default setting function.

[fuzihaofzh]

@mrvon How to run it after lua-mode's default setting function?

[mrvon]

@maplewizard Sorry, I don't know. I am a spacemacs beginner.

[slowfeel]

you should change the lua-indent-level in file: layers/+lang/lua/package.el

[TheBB]

We shouldn't have that there in the first place.

[TheBB]

Fixed the lua stuff in ff8d4da at least. Now it should work in dotspacemacs/user-config.

[langston-barrett]

Is there no 'xml-mode-hook? Here's how I do it for shell scripts.

  (defun siddharthist/sh-mode ()
    "My own personal preferences for sh-mode"
    (setq sh-basic-offset 2
          sh-indentation 2))
  (add-hook 'sh-mode-hook 'siddharthist/sh-mode)

[d12frosted]

@siddharthist there is nxml-mode-hook. So yeah, it's also possible to use hooks.

[d12frosted]

And also I can confirm that on develop branch setting nxml-child-indent to 4 works.

(defun dotspacemacs/user-config ()
  "Configuration function.
This function is called at the very end of Spacemacs initialization after
layers configuration."
  (setq nxml-child-indent 4))

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