gnu: Add emacs-constants.
* gnu/packages/emacs.scm (emacs-constants): New variable. * gnu/packages/patches/emacs-constants-lisp-like.patch: New patch. * gnu-system.am (dist_patch_DATA): Add it.
This commit is contained in:
Federico Beffa
parent
58a7dc1340
commit
e5045f303a
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@ -452,6 +452,7 @@ dist_patch_DATA = \
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gnu/packages/patches/duplicity-piped-password.patch \
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gnu/packages/patches/duplicity-test_selection-tmp.patch \
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gnu/packages/patches/elfutils-tests-ptrace.patch \
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gnu/packages/patches/emacs-constants-lisp-like.patch \
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gnu/packages/patches/emacs-exec-path.patch \
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gnu/packages/patches/emacs-scheme-complete-scheme-r5rs-info.patch \
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gnu/packages/patches/emacs-source-date-epoch.patch \
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@ -26,6 +26,9 @@
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#:use-module (guix packages)
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#:use-module (guix download)
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#:use-module (guix git-download)
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#:use-module (guix gexp)
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#:use-module (guix monads)
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#:use-module (guix store)
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#:use-module (guix build-system gnu)
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#:use-module (guix build-system emacs)
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#:use-module (guix build-system glib-or-gtk)
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@ -1297,3 +1300,41 @@ to a key in your preferred mode.")
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"This package provides a set of Emacs functions to search definitions of
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identifiers in the MIT-Scheme documentation.")
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(license license:gpl2+)))
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;;; XXX: move this procedure to an utility module
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(define* (uncompressed-file-fetch url hash-algo hash
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#:optional name
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#:key (system (%current-system))
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(guile (default-guile)))
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(mlet %store-monad ((drv (url-fetch url hash-algo hash name
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#:system system
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#:guile guile)))
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(gexp->derivation (or name (basename url))
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#~(begin
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(mkdir #$output)
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(setenv "PATH"
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(string-append #$gzip "/bin"))
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(chdir #$output)
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(copy-file #$drv (basename #$url))))))
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(define-public emacs-constants
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(package
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(name "emacs-constants")
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(version "2.2")
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(source
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(origin
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(file-name (string-append name "-" version ".el"))
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(method uncompressed-file-fetch)
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(uri "https://staff.fnwi.uva.nl/c.dominik/Tools/constants/constants.el")
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(patches
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(list (search-patch "emacs-constants-lisp-like.patch")))
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(sha256
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(base32
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"14q094aphsjhq8gklv7i5a7byl0ygz63cv3n6b5p8ji2jy0mnnw3"))))
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(build-system emacs-build-system)
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(home-page "https://staff.fnwi.uva.nl/c.dominik/Tools/constants")
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(synopsis "Enter definition of constants into an Emacs buffer")
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(description
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"This package provides functions for inserting the definition of natural
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constants and units into an Emacs buffer.")
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(license license:gpl2+)))
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@ -0,0 +1,81 @@
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Add Scheme support
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--- constants/constants.el.orig 2015-12-26 17:44:31.734520833 +0100
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+++ constants/constants.el 2015-12-30 17:41:28.402871263 +0100
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@@ -684,6 +684,33 @@
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(eval-when-compile (defvar ctable))
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+(defun constants-is-lisp-like (mode)
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+ (save-match-data
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+ (string-match "\\(lisp\\|scheme\\)" (symbol-name mode))))
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+
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+(defun constants-is-set-like ()
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+ (save-excursion
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+ (condition-case nil
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+ (save-match-data
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+ (progn (up-list -1)
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+ (or (looking-at "(set[qf!]?\\>") (looking-at "(define\\>"))))
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+ (error nil)))) ; return value nil means use default
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+
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+;;;###autoload
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+(defun constants-lisp-like-function ()
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+ "Check context for constants insertion."
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+ (if (constants-is-set-like)
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+ '(emacs-lisp-mode "%n %v%t; %d %u" "e" "(* %p %v)")
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+ '(emacs-lisp-mode "(%n %v)%t; %d %u" "e" "(* %p %v)")))
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+
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+;;;###autoload
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+(mapc (lambda (mode-hook)
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+ (add-hook mode-hook
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+ (lambda ()
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+ (setq constants-language-function
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+ 'constants-lisp-like-function))))
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+ '(scheme-mode-hook emacs-lisp-mode-hook lisp-mode-hook))
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+
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;;;###autoload
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(defun constants-insert (&optional unit-system names)
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"Insert one or more natural constant definitions in source code.
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@@ -826,8 +853,9 @@
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(funcall process-func ins))
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;; Here comes the insertion stuff for source code editing modes.
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;; First make sure we start a new line
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- (if (string-match
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- "\\S-" (buffer-substring (point-at-bol) (point-at-eol)))
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+ (if (and (string-match
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+ "\\S-" (buffer-substring (point-at-bol) (point-at-eol)))
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+ (not (constants-is-lisp-like mode)))
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;; non-empty line, insert after this line
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(progn
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(end-of-line 1)
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@@ -841,13 +869,24 @@
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(if (string-match "\\(.*\\)%t\\(.*\\)" line)
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(let ((comment-column 42))
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(insert (match-string 1 line))
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- (indent-to comment-column)
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- (insert (match-string 2 line)))
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+ (if (and (constants-is-lisp-like mode)
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+ (or (constants-is-set-like)
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+ (null clist)))
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+ (save-excursion
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+ (progn
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+ (move-to-column comment-column t)
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+ (insert (match-string 2 line))
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+ ;; insert a newline such that paredit's M-) can mode
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+ ;; the closing parentheses to the next line.
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+ (newline-and-indent)))
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+ (progn
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+ (indent-to comment-column)
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+ (insert (match-string 2 line)))))
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(insert line)))
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- (if constants-indent-code
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- (newline-and-indent)
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- (newline))))))
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-
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+ (unless (and (constants-is-lisp-like mode) (null clist))
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+ (if constants-indent-code
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+ (newline-and-indent)
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+ (newline)))))))
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;;;###autoload
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(defun constants-get (&optional const message)
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"Return the value of CONST as defined in the constants package.
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