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emacs: devel: Add indentation rules.

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Suggested by Ludovic Courtès <ludo@gnu.org>.

* emacs/guix-devel.el: Add indentation rules for Guix macros/procedures.
  (guix-devel-scheme-indent): New macro.
  (guix-devel-indent-package): New function.
This commit is contained in:
Alex Kost 2015-10-12 12:06:32 +03:00
parent 9f7ae77fe2
commit 17fa842b79
1 changed files with 64 additions and 0 deletions
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64
emacs/guix-devel.el
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@ -24,6 +24,7 @@
;;; Code:
(require 'lisp-mode)
(require 'guix-guile)
(require 'guix-geiser)
(require 'guix-utils)
@ -188,6 +189,69 @@ to find 'modify-phases' keywords."
(0 'guix-devel-modify-phases-keyword nil t))))
"A list of `font-lock-keywords' for `guix-devel-mode'.")
;;; Indentation
(defmacro guix-devel-scheme-indent (&rest rules)
"Set `scheme-indent-function' according to RULES.
Each rule should have a form (SYMBOL VALUE). See `put' for details."
(declare (indent 0))
`(progn
,@(mapcar (lambda (rule)
`(put ',(car rule) 'scheme-indent-function ,(cadr rule)))
rules)))
(defun guix-devel-indent-package (state indent-point normal-indent)
"Indentation rule for 'package' form."
(let* ((package-eol (line-end-position))
(count (if (and (ignore-errors (down-list) t)
(< (point) package-eol)
(looking-at "inherit\\>"))
1
0)))
(lisp-indent-specform count state indent-point normal-indent)))
(guix-devel-scheme-indent
(bag 0)
(build-system 0)
(call-with-compressed-output-port 2)
(call-with-container 1)
(call-with-decompressed-port 2)
(call-with-error-handling 0)
(container-excursion 1)
(emacs-batch-edit-file 1)
(emacs-batch-eval 0)
(emacs-substitute-sexps 1)
(emacs-substitute-variables 1)
(file-system 0)
(graft 0)
(manifest-entry 0)
(manifest-pattern 0)
(mbegin 1)
(mlet 2)
(mlet* 2)
(modify-phases 1)
(munless 1)
(mwhen 1)
(operating-system 0)
(origin 0)
(package 'guix-devel-indent-package)
(run-with-state 1)
(run-with-store 1)
(signature-case 1)
(substitute* 1)
(substitute-keyword-arguments 1)
(test-assertm 1)
(with-atomic-file-output 1)
(with-derivation-narinfo 1)
(with-derivation-substitute 2)
(with-directory-excursion 1)
(with-error-handling 0)
(with-monad 1)
(with-mutex 1)
(with-store 1)
(wrap-program 1))
(defvar guix-devel-keys-map
(let ((map (make-sparse-keymap)))