-;;; makefile.el --- makefile editing commands for Emacs
+;;; make-mode.el --- makefile editing commands for Emacs
-;; Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1992,94,99,2000,2001, 2002, 2003 Free Software Foundation, Inc.
;; Author: Thomas Neumann <tom@smart.bo.open.de>
;; Eric S. Raymond <esr@snark.thyrsus.com>
+;; Maintainer: FSF
;; Adapted-By: ESR
;; Keywords: unix, tools
-;; RMS:
-;; This needs work.
-;; Also, the doc strings need fixing: the first line doesn't stand alone,
-;; and other usage is not high quality. Symbol names don't have `...'.
-
-;; So, for the meantime, this is not the default mode for makefiles.
-
-;; $Id: makefile.el,v 1.16 1994/05/22 22:10:39 rms Exp $
-
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 1, or (at your option)
+;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
;;
;; To Do:
;;
+;; * Add missing doc strings, improve terse doc strings.
;; * Eliminate electric stuff entirely.
;; * It might be nice to highlight targets differently depending on
;; whether they are up-to-date or not. Not sure how this would
;; * Consider removing browser mode. It seems useless.
;; * ":" should notice when a new target is made and add it to the
;; list (or at least set makefile-need-target-pickup).
-;; * Make browser into a mode.
+;; * Make browser into a major mode.
;; * Clean up macro insertion stuff. It is a mess.
;; * Browser entry and exit is weird. Normalize.
;; * Browser needs to be rewritten. Right now it is kind of a crock.
;;; Code:
-(provide 'makefile)
-
;; Sadly we need this for a macro.
(eval-when-compile
- (require 'imenu))
+ (require 'imenu)
+ (require 'dabbrev)
+ (require 'add-log))
;;; ------------------------------------------------------------
;;; Configurable stuff
;;; ------------------------------------------------------------
-(defvar makefile-browser-buffer-name "*Macros and Targets*"
- "Name of the macro- and target browser buffer.")
-
-(defvar makefile-target-colon ":"
- "The string that gets appended to all target names
-inserted by makefile-insert-target.
-\":\" or \"::\" are quite common values.")
-
-(defvar makefile-macro-assign " = "
- "The string that gets appended to all macro names
-inserted by makefile-insert-macro.
+(defgroup makefile nil
+ "Makefile editing commands for Emacs."
+ :group 'tools
+ :prefix "makefile-")
+
+(defface makefile-space-face
+ '((((class color)) (:background "hotpink"))
+ (t (:reverse-video t)))
+ "Face to use for highlighting leading spaces in Font-Lock mode."
+ :group 'faces
+ :group 'makefile)
+
+(defcustom makefile-browser-buffer-name "*Macros and Targets*"
+ "*Name of the macro- and target browser buffer."
+ :type 'string
+ :group 'makefile)
+
+(defcustom makefile-target-colon ":"
+ "*String to append to all target names inserted by `makefile-insert-target'.
+\":\" or \"::\" are common values."
+ :type 'string
+ :group 'makefile)
+
+(defcustom makefile-macro-assign " = "
+ "*String to append to all macro names inserted by `makefile-insert-macro'.
The normal value should be \" = \", since this is what
-standard make expects. However, newer makes such as dmake
+standard make expects. However, newer makes such as dmake
allow a larger variety of different macro assignments, so you
-might prefer to use \" += \" or \" := \" .")
-
-(defvar makefile-electric-keys nil
- "If non-nil, install electric keybindings.
-Default is nil.")
-
-(defvar makefile-use-curly-braces-for-macros-p nil
- "Controls the style of generated macro references.
-Set this variable to a non-nil value if you prefer curly braces
-in macro-references, so it looks like ${this}. A value of nil
-will cause makefile-mode to use parentheses, making macro references
-look like $(this) .")
-
-(defvar makefile-tab-after-target-colon t
- "If you want a TAB (instead of a space) to be appended after the
-target colon, then set this to a non-nil value.")
-
-(defvar makefile-browser-leftmost-column 10
- "Number of blanks to the left of the browser selection mark.")
-
-(defvar makefile-browser-cursor-column 10
- "Column in which the cursor is positioned when it moves
-up or down in the browser.")
-
-(defvar makefile-browser-selected-mark "+ "
- "String used to mark selected entries in the browser.")
-
-(defvar makefile-browser-unselected-mark " "
- "String used to mark unselected entries in the browser.")
-
-(defvar makefile-browser-auto-advance-after-selection-p t
- "If non-nil, the cursor will automagically advance to the next line after
-an item has been selected in the browser.")
-
-(defvar makefile-pickup-everything-picks-up-filenames-p nil
- "If non-nil, makefile-pickup-everything also picks up filenames as targets
-\(i.e. it calls makefile-find-filenames-as-targets), otherwise filenames are
-omitted.")
-
-(defvar makefile-cleanup-continuations-p t
- "If non-nil, makefile-mode will assure that no line in the file ends with a
-backslash (the continuation character) followed by any whitespace. This is
-done by silently removing the trailing whitespace, leaving the backslash itself
-intact. IMPORTANT: Please note that enabling this option causes makefile-mode
-to MODIFY A FILE WITHOUT YOUR CONFIRMATION when \'it seems necessary\'.")
-
-(defvar makefile-browser-hook '()
- "A function or list of functions to be called just before the
-browser is entered. This is executed in the makefile buffer.")
+might prefer to use \" += \" or \" := \" ."
+ :type 'string
+ :group 'makefile)
+
+(defcustom makefile-electric-keys nil
+ "*If non-nil, Makefile mode should install electric keybindings.
+Default is nil."
+ :type 'boolean
+ :group 'makefile)
+
+(defcustom makefile-use-curly-braces-for-macros-p nil
+ "*Controls the style of generated macro references.
+Non-nil means macro references should use curly braces, like `${this}'.
+nil means use parentheses, like `$(this)'."
+ :type 'boolean
+ :group 'makefile)
+
+(defcustom makefile-tab-after-target-colon t
+ "*If non-nil, insert a TAB after a target colon.
+Otherwise, a space is inserted.
+The default is t."
+ :type 'boolean
+ :group 'makefile)
+
+(defcustom makefile-browser-leftmost-column 10
+ "*Number of blanks to the left of the browser selection mark."
+ :type 'integer
+ :group 'makefile)
+
+(defcustom makefile-browser-cursor-column 10
+ "*Column the cursor goes to when it moves up or down in the Makefile browser."
+ :type 'integer
+ :group 'makefile)
+
+(defcustom makefile-backslash-column 48
+ "*Column in which `makefile-backslash-region' inserts backslashes."
+ :type 'integer
+ :group 'makefile)
+
+(defcustom makefile-backslash-align t
+ "*If non-nil, `makefile-backslash-region' will align backslashes."
+ :type 'boolean
+ :group 'makefile)
+
+(defcustom makefile-browser-selected-mark "+ "
+ "*String used to mark selected entries in the Makefile browser."
+ :type 'string
+ :group 'makefile)
+
+(defcustom makefile-browser-unselected-mark " "
+ "*String used to mark unselected entries in the Makefile browser."
+ :type 'string
+ :group 'makefile)
+
+(defcustom makefile-browser-auto-advance-after-selection-p t
+ "*If non-nil, cursor will move after item is selected in Makefile browser."
+ :type 'boolean
+ :group 'makefile)
+
+(defcustom makefile-pickup-everything-picks-up-filenames-p nil
+ "*If non-nil, `makefile-pickup-everything' picks up filenames as targets.
+This means it calls `makefile-pickup-filenames-as-targets'.
+Otherwise filenames are omitted."
+ :type 'boolean
+ :group 'makefile)
+
+(defcustom makefile-cleanup-continuations nil
+ "*If non-nil, automatically clean up continuation lines when saving.
+A line is cleaned up by removing all whitespace following a trailing
+backslash. This is done silently.
+IMPORTANT: Please note that enabling this option causes Makefile mode
+to MODIFY A FILE WITHOUT YOUR CONFIRMATION when \"it seems necessary\"."
+ :type 'boolean
+ :group 'makefile)
+
+(defcustom makefile-mode-hook nil
+ "*Normal hook run by `makefile-mode'."
+ :type 'hook
+ :group 'makefile)
+
+(defvar makefile-browser-hook '())
;;
;; Special targets for DMake, Sun's make ...
-;;
-(defvar makefile-special-targets-list
+;;
+(defcustom makefile-special-targets-list
'(("DEFAULT") ("DONE") ("ERROR") ("EXPORT")
("FAILED") ("GROUPEPILOG") ("GROUPPROLOG") ("IGNORE")
("IMPORT") ("INCLUDE") ("INCLUDEDIRS") ("INIT")
("SCCS_GET") ("SILENT") ("SOURCE") ("SUFFIXES")
("WAIT") ("c.o") ("C.o") ("m.o")
("el.elc") ("y.c") ("s.o"))
- "List of special targets. You will be offered to complete
-on one of those in the minibuffer whenever you enter a \".\"
-at the beginning of a line in makefile-mode.")
-
-(defvar makefile-runtime-macros-list
- '(("@") ("&") (">") ("<") ("*") ("^") ("?") ("%") ("$"))
- "List of macros that are resolved by make at runtime.
-If you insert a macro reference using makefile-insert-macro-ref, the name
-of the macro is checked against this list. If it can be found its name will
-not be enclosed in { } or ( ).")
+ "*List of special targets.
+You will be offered to complete on one of those in the minibuffer whenever
+you enter a \".\" at the beginning of a line in `makefile-mode'."
+ :type '(repeat (list string))
+ :group 'makefile)
+
+(defcustom makefile-runtime-macros-list
+ '(("@") ("&") (">") ("<") ("*") ("^") ("+") ("?") ("%") ("$"))
+ "*List of macros that are resolved by make at runtime.
+If you insert a macro reference using `makefile-insert-macro-ref', the name
+of the macro is checked against this list. If it can be found its name will
+not be enclosed in { } or ( )."
+ :type '(repeat (list string))
+ :group 'makefile)
;; Note that the first big subexpression is used by font lock. Note
-;; that if you change this regexp you must fix the imenu index
-;; function defined at the end of the file.
+;; that if you change this regexp you might have to fix the imenu
+;; index in makefile-imenu-generic-expression.
(defconst makefile-dependency-regex
- "^\\([^ \n\t#:]+\\([ \t]+[^ \t\n#:]+\\)*\\)[ \t]*:\\([ \t]*$\\|\\([^=\n].*$\\)\\)"
+ "^ *\\([^ \n\t#:=]+\\([ \t]+\\([^ \t\n#:=]+\\|\\$[({][^ \t\n#})]+[})]\\)\\)*\\)[ \t]*:\\([ \t]*$\\|\\([^=\n].*$\\)\\)"
"Regex used to find dependency lines in a makefile.")
-;; Note that the first subexpression is used by font lock. Note that
-;; if you change this regexp you must fix the imenu index function
-;; defined at the end of the file.
+;; Note that the first subexpression is used by font lock. Note
+;; that if you change this regexp you might have to fix the imenu
+;; index in makefile-imenu-generic-expression.
(defconst makefile-macroassign-regex
- "^\\([^ \n\t][^:#=\n]*\\)[ \t]*[*:+]?:?="
+ "^ *\\([^ \n\t][^:#= \t\n]*\\)[ \t]*[*:+]?[:?]?="
"Regex used to find macro assignment lines in a makefile.")
(defconst makefile-ignored-files-in-pickup-regex
"\\(^\\..*\\)\\|\\(.*~$\\)\\|\\(.*,v$\\)\\|\\(\\.[chy]\\)"
"Regex for filenames that will NOT be included in the target list.")
+(if (fboundp 'facemenu-unlisted-faces)
+ (add-to-list 'facemenu-unlisted-faces 'makefile-space-face))
+(defvar makefile-space-face 'makefile-space-face
+ "Face to use for highlighting leading spaces in Font-Lock mode.")
+
(defconst makefile-font-lock-keywords
(list
- ;; Do macro assignments. These get the "type" face rather
+
+ ;; Do macro assignments. These get the "variable-name" face rather
;; arbitrarily.
- (list makefile-macroassign-regex 1 'font-lock-type-face)
+ (list makefile-macroassign-regex 1 'font-lock-variable-name-face)
+
+ ;; Do dependencies. These get the function name face.
+ (list makefile-dependency-regex 1 'font-lock-function-name-face)
+
+ ;; Variable references even in targets/strings/comments.
+ '("[^$]\\$[({]\\([-a-zA-Z0-9_.]+\\|[@%<?^+*][FD]?\\)[}):]"
+ 1 font-lock-constant-face prepend)
- ;; Do dependencies. These get the function name face.
- (list makefile-dependency-regex 1 'font-lock-function-name-face)))
+ ;; Automatic variable references and single character variable references,
+ ;; but not shell variables references.
+ '("[^$]\\$\\([@%<?^+*_]\\|[a-zA-Z0-9]\\>\\)"
+ 1 font-lock-constant-face prepend)
+
+ ;; Fontify conditionals and includes.
+ ;; Note that plain `if' is an automake conditional, and not a bug.
+ (list
+ (concat "^\\(?: [ \t]*\\)?"
+ (regexp-opt '("-include" "-sinclude" "include" "sinclude" "ifeq"
+ "if" "ifneq" "ifdef" "ifndef" "endif" "else"
+ "define" "endef" "override"
+ "export" "unexport" "vpath") t)
+ "\\>[ \t]*\\([^: \t\n#]*\\)")
+ '(1 font-lock-keyword-face) '(2 font-lock-variable-name-face))
+
+ ;; Highlight lines that contain just whitespace.
+ ;; They can cause trouble, especially if they start with a tab.
+ '("^[ \t]+$" . makefile-space-face)
+
+ ;; Highlight shell comments that Make treats as commands,
+ ;; since these can fool people.
+ '("^\t+#" 0 makefile-space-face t)
+
+ ;; Highlight spaces that precede tabs.
+ ;; They can make a tab fail to be effective.
+ '("^\\( +\\)\t" 1 makefile-space-face)))
+
+(defconst makefile-font-lock-syntactic-keywords
+ ;; From sh-script.el.
+ ;; A `#' begins a comment in sh when it is unquoted and at the beginning
+ ;; of a word. In the shell, words are separated by metacharacters.
+ ;; The list of special chars is taken from the single-unix spec of the
+ ;; shell command language (under `quoting') but with `$' removed.
+ '(("[^|&;<>()`\\\"' \t\n]\\(#+\\)" 1 "_")
+ ;; Change the syntax of a quoted newline so that it does not end a comment.
+ ("\\\\\n" 0 ".")))
+
+(defvar makefile-imenu-generic-expression
+ (list
+ (list "Dependencies" makefile-dependency-regex 1)
+ (list "Macro Assignment" makefile-macroassign-regex 1))
+ "Imenu generic expression for Makefile mode. See `imenu-generic-expression'.")
;;; ------------------------------------------------------------
;;; The following configurable variables are used in the
;;; of `makefile-query-by-make-minus-q' .
;;; ------------------------------------------------------------
-(defvar makefile-brave-make "make"
- "A make that can handle the \'-q\' option.")
+(defcustom makefile-brave-make "make"
+ "*How to invoke make, for `makefile-query-targets'.
+This should identify a `make' command that can handle the `-q' option."
+ :type 'string
+ :group 'makefile)
-(defvar makefile-query-one-target-method 'makefile-query-by-make-minus-q
- "A function symbol [one that can be used as the first argument to
-funcall] that provides a function that must conform to the following
-interface:
+(defcustom makefile-query-one-target-method 'makefile-query-by-make-minus-q
+ "*Function to call to determine whether a make target is up to date.
+The function must satisfy this calling convention:
* As its first argument, it must accept the name of the target to
be checked, as a string.
* As its second argument, it may accept the name of a makefile
- as a string. Depending on what you're going to do you may
+ as a string. Depending on what you're going to do you may
not need this.
* It must return the integer value 0 (zero) if the given target
should be considered up-to-date in the context of the given
- makefile, any nonzero integer value otherwise.")
+ makefile, any nonzero integer value otherwise."
+ :type 'function
+ :group 'makefile)
-(defvar makefile-up-to-date-buffer-name "*Makefile Up-to-date overview*"
- "Name of the Up-to-date overview buffer.")
+(defcustom makefile-up-to-date-buffer-name "*Makefile Up-to-date overview*"
+ "*Name of the Up-to-date overview buffer."
+ :type 'string
+ :group 'makefile)
;;; --- end of up-to-date-overview configuration ------------------
+(defvar makefile-mode-abbrev-table nil
+ "Abbrev table in use in Makefile buffers.")
+(if makefile-mode-abbrev-table
+ ()
+ (define-abbrev-table 'makefile-mode-abbrev-table ()))
+
(defvar makefile-mode-map nil
- "The keymap that is used in makefile-mode.")
+ "The keymap that is used in Makefile mode.")
+
(if makefile-mode-map
()
(setq makefile-mode-map (make-sparse-keymap))
(define-key makefile-mode-map "." 'makefile-electric-dot)))
(define-key makefile-mode-map "\C-c\C-f" 'makefile-pickup-filenames-as-targets)
(define-key makefile-mode-map "\C-c\C-b" 'makefile-switch-to-browser)
+ (define-key makefile-mode-map "\C-c\C-c" 'comment-region)
(define-key makefile-mode-map "\C-c\C-p" 'makefile-pickup-everything)
(define-key makefile-mode-map "\C-c\C-u" 'makefile-create-up-to-date-overview)
(define-key makefile-mode-map "\C-c\C-i" 'makefile-insert-gmake-function)
+ (define-key makefile-mode-map "\C-c\C-\\" 'makefile-backslash-region)
(define-key makefile-mode-map "\M-p" 'makefile-previous-dependency)
(define-key makefile-mode-map "\M-n" 'makefile-next-dependency)
(define-key makefile-mode-map "\e\t" 'makefile-complete)
(cons "Makefile" (make-sparse-keymap "Makefile")))
(define-key makefile-mode-map [menu-bar makefile-mode browse]
- '("Pop up Makefile browser" . makefile-switch-to-browser))
+ '("Pop up Makefile Browser" . makefile-switch-to-browser))
(define-key makefile-mode-map [menu-bar makefile-mode complete]
- '("Complete target or macro" . makefile-complete))
+ '("Complete Target or Macro" . makefile-complete))
(define-key makefile-mode-map [menu-bar makefile-mode pickup]
- '("Find targets and macros" . makefile-pickup-everything))
+ '("Find Targets and Macros" . makefile-pickup-everything))
(define-key makefile-mode-map [menu-bar makefile-mode prev]
- '("Move to previous dependency" . makefile-previous-dependency))
+ '("Move to Previous Dependency" . makefile-previous-dependency))
(define-key makefile-mode-map [menu-bar makefile-mode next]
- '("Move to next dependency" . makefile-next-dependency)))
+ '("Move to Next Dependency" . makefile-next-dependency)))
(defvar makefile-browser-map nil
"The keymap that is used in the macro- and target browser.")
()
(setq makefile-browser-map (make-sparse-keymap))
(define-key makefile-browser-map "n" 'makefile-browser-next-line)
- (define-key makefile-browser-map "\C-n" 'makefile-browser-next-line)
+ (define-key makefile-browser-map "\C-n" 'makefile-browser-next-line)
(define-key makefile-browser-map "p" 'makefile-browser-previous-line)
(define-key makefile-browser-map "\C-p" 'makefile-browser-previous-line)
(define-key makefile-browser-map " " 'makefile-browser-toggle)
(define-key makefile-browser-map "i" 'makefile-browser-insert-selection)
- (define-key makefile-browser-map "I" 'makefile-browser-insert-selection-and-quit)
+ (define-key makefile-browser-map "I" 'makefile-browser-insert-selection-and-quit)
(define-key makefile-browser-map "\C-c\C-m" 'makefile-browser-insert-continuation)
(define-key makefile-browser-map "q" 'makefile-browser-quit)
;; disable horizontal movement
(define-key makefile-browser-map "\C-b" 'undefined)
- (define-key makefile-browser-map "\C-f" 'undefined))
+ (define-key makefile-browser-map "\C-f" 'undefined))
-(defvar makefile-mode-syntax-table nil
- "The syntax-table used in makefile mode.")
+(defvar makefile-mode-syntax-table nil)
(if makefile-mode-syntax-table
()
(setq makefile-mode-syntax-table (make-syntax-table))
(modify-syntax-entry ?\( "() " makefile-mode-syntax-table)
(modify-syntax-entry ?\) ")( " makefile-mode-syntax-table)
(modify-syntax-entry ?\[ "(] " makefile-mode-syntax-table)
- (modify-syntax-entry ?\] "([ " makefile-mode-syntax-table)
- (modify-syntax-entry ?\{ "(} " makefile-mode-syntax-table)
+ (modify-syntax-entry ?\] ")[ " makefile-mode-syntax-table)
+ (modify-syntax-entry ?\{ "(} " makefile-mode-syntax-table)
(modify-syntax-entry ?\} "){ " makefile-mode-syntax-table)
+ (modify-syntax-entry ?\' "\" " makefile-mode-syntax-table)
+ (modify-syntax-entry ?\` "\" " makefile-mode-syntax-table)
(modify-syntax-entry ?# "< " makefile-mode-syntax-table)
(modify-syntax-entry ?\n "> " makefile-mode-syntax-table))
;;; ------------------------------------------------------------
(defvar makefile-target-table nil
- "Table of all targets that have been inserted in
-this Makefile buffer using makefile-insert-target or picked up
-using makefile-pickup-targets.")
+ "Table of all target names known for this buffer.")
(defvar makefile-macro-table nil
- "Table of all macros that have been iserted in
-this Makefile buffer using makefile-insert-macro or picked up
-using makefile-pickup-macros.")
+ "Table of all macro names known for this buffer.")
(defvar makefile-browser-client
- "A buffer in makefile-mode that is currently using the browser.")
+ "A buffer in Makefile mode that is currently using the browser.")
(defvar makefile-browser-selection-vector nil)
(defvar makefile-has-prereqs nil)
(defvar makefile-mode-hook '())
+;; Each element looks like '("GNU MAKE FUNCTION" "ARG" "ARG" ... )
+;; Each "ARG" is used as a prompt for a required argument.
(defconst makefile-gnumake-functions-alist
'(
;; Text functions
("notdir" "Names")
("suffix" "Names")
("basename" "Names")
+ ("addprefix" "Prefix" "Names")
("addsuffix" "Suffix" "Names")
("join" "List 1" "List 2")
("word" "Index" "Text")
;; Misc functions
("foreach" "Variable" "List" "Text")
("origin" "Variable")
- ("shell" "Command"))
- "A list of GNU make function names associated with
-the prompts for each function.
-This is used in the function makefile-insert-gmake-function .")
+ ("shell" "Command")))
;;; ------------------------------------------------------------
;;;###autoload
(defun makefile-mode ()
"Major mode for editing Makefiles.
-Calling this function invokes the function(s) \"makefile-mode-hook\" before
-doing anything else.
+This function ends by invoking the function(s) `makefile-mode-hook'.
\\{makefile-mode-map}
\\{makefile-browser-map}
-makefile-mode can be configured by modifying the following
-variables:
+Makefile mode can be configured by modifying the following variables:
-makefile-browser-buffer-name:
+`makefile-browser-buffer-name':
Name of the macro- and target browser buffer.
-makefile-target-colon:
+`makefile-target-colon':
The string that gets appended to all target names
- inserted by makefile-insert-target.
+ inserted by `makefile-insert-target'.
\":\" or \"::\" are quite common values.
-makefile-macro-assign:
+`makefile-macro-assign':
The string that gets appended to all macro names
- inserted by makefile-insert-macro.
+ inserted by `makefile-insert-macro'.
The normal value should be \" = \", since this is what
- standard make expects. However, newer makes such as dmake
+ standard make expects. However, newer makes such as dmake
allow a larger variety of different macro assignments, so you
might prefer to use \" += \" or \" := \" .
-makefile-tab-after-target-colon:
+`makefile-tab-after-target-colon':
If you want a TAB (instead of a space) to be appended after the
target colon, then set this to a non-nil value.
-makefile-browser-leftmost-column:
+`makefile-browser-leftmost-column':
Number of blanks to the left of the browser selection mark.
-makefile-browser-cursor-column:
+`makefile-browser-cursor-column':
Column in which the cursor is positioned when it moves
up or down in the browser.
-makefile-browser-selected-mark:
+`makefile-browser-selected-mark':
String used to mark selected entries in the browser.
-makefile-browser-unselected-mark:
+`makefile-browser-unselected-mark':
String used to mark unselected entries in the browser.
-makefile-browser-auto-advance-after-selection-p:
+`makefile-browser-auto-advance-after-selection-p':
If this variable is set to a non-nil value the cursor
will automagically advance to the next line after an item
has been selected in the browser.
-makefile-pickup-everything-picks-up-filenames-p:
+`makefile-pickup-everything-picks-up-filenames-p':
If this variable is set to a non-nil value then
- makefile-pickup-everything also picks up filenames as targets
- (i.e. it calls makefile-find-filenames-as-targets), otherwise
+ `makefile-pickup-everything' also picks up filenames as targets
+ (i.e. it calls `makefile-pickup-filenames-as-targets'), otherwise
filenames are omitted.
-makefile-cleanup-continuations-p:
- If this variable is set to a non-nil value then makefile-mode
+`makefile-cleanup-continuations':
+ If this variable is set to a non-nil value then Makefile mode
will assure that no line in the file ends with a backslash
(the continuation character) followed by any whitespace.
This is done by silently removing the trailing whitespace, leaving
the backslash itself intact.
- IMPORTANT: Please note that enabling this option causes makefile-mode
- to MODIFY A FILE WITHOUT YOUR CONFIRMATION when \'it seems necessary\'.
+ IMPORTANT: Please note that enabling this option causes Makefile mode
+ to MODIFY A FILE WITHOUT YOUR CONFIRMATION when \"it seems necessary\".
-makefile-browser-hook:
+`makefile-browser-hook':
A function or list of functions to be called just before the
browser is entered. This is executed in the makefile buffer.
-makefile-special-targets-list:
+`makefile-special-targets-list':
List of special targets. You will be offered to complete
- on one of those in the minibuffer whenever you enter a \".\"
- at the beginning of a line in makefile-mode."
+ on one of those in the minibuffer whenever you enter a `.'.
+ at the beginning of a line in Makefile mode."
(interactive)
(kill-all-local-variables)
- (make-local-variable 'local-write-file-hooks)
- (setq local-write-file-hooks
- '(makefile-cleanup-continuations makefile-warn-suspicious-lines))
+ (add-hook 'write-file-functions
+ 'makefile-warn-suspicious-lines nil t)
+ (add-hook 'write-file-functions
+ 'makefile-warn-continuations nil t)
+ (add-hook 'write-file-functions
+ 'makefile-cleanup-continuations nil t)
(make-local-variable 'makefile-target-table)
(make-local-variable 'makefile-macro-table)
(make-local-variable 'makefile-has-prereqs)
(make-local-variable 'makefile-need-macro-pickup)
;; Font lock.
- (make-local-variable 'font-lock-keywords)
- (setq font-lock-keywords makefile-font-lock-keywords)
- (make-local-variable 'font-lock-keywords-case-fold-search)
- (setq font-lock-keywords-case-fold-search t)
+ (make-local-variable 'font-lock-defaults)
+ (setq font-lock-defaults
+ ;; SYNTAX-BEGIN set to backward-paragraph to avoid slow-down
+ ;; near the end of a large buffer, due to parse-partial-sexp's
+ ;; trying to parse all the way till the beginning of buffer.
+ '(makefile-font-lock-keywords
+ nil nil
+ ((?$ . "."))
+ backward-paragraph
+ (font-lock-syntactic-keywords . makefile-font-lock-syntactic-keywords)))
;; Add-log.
(make-local-variable 'add-log-current-defun-function)
(setq add-log-current-defun-function 'makefile-add-log-defun)
;; Imenu.
- (make-local-variable 'imenu-create-index-function)
- (setq imenu-create-index-function 'makefile-menu-index-function)
+ (make-local-variable 'imenu-generic-expression)
+ (setq imenu-generic-expression makefile-imenu-generic-expression)
+
+ ;; Dabbrev.
+ (make-local-variable 'dabbrev-abbrev-skip-leading-regexp)
+ (setq dabbrev-abbrev-skip-leading-regexp "\\$")
+
+ ;; Other abbrevs.
+ (setq local-abbrev-table makefile-mode-abbrev-table)
+
+ ;; Filling.
+ (make-local-variable 'fill-paragraph-function)
+ (setq fill-paragraph-function 'makefile-fill-paragraph)
;; Comment stuff.
(make-local-variable 'comment-start)
(make-local-variable 'comment-start-skip)
(setq comment-start-skip "#+[ \t]*")
+ ;; Make sure TAB really inserts \t.
+ (set (make-local-variable 'indent-line-function) 'indent-to-left-margin)
+
;; become the current major mode
(setq major-mode 'makefile-mode)
(setq mode-name "Makefile")
;;; Motion code.
(defun makefile-next-dependency ()
- "Move (point) to the beginning of the next dependency line below (point)."
+ "Move point to the beginning of the next dependency line."
(interactive)
(let ((here (point)))
(end-of-line)
(goto-char here) nil)))
(defun makefile-previous-dependency ()
- "Move (point) to the beginning of the next dependency line above (point)."
+ "Move point to the beginning of the previous dependency line."
(interactive)
(let ((here (point)))
(beginning-of-line)
(self-insert-command arg)))
(defun makefile-insert-special-target ()
- "Propmt for and insert a special target name.
+ "Prompt for and insert a special target name.
Uses `makefile-special-targets' list."
(interactive)
(makefile-pickup-targets)
(makefile-remember-macro macro-name))))
(defun makefile-insert-macro-ref (macro-name)
- "Complete on a list of known macros, then insert complete ref at (point)."
+ "Complete on a list of known macros, then insert complete ref at point."
(interactive
(list
(progn
(makefile-remember-target target-name))))
(defun makefile-insert-target-ref (target-name)
- "Complete on a list of known targets, then insert target-ref at (point) ."
+ "Complete on a list of known targets, then insert TARGET-NAME at point."
(interactive
(list
(progn
;;; ------------------------------------------------------------
(defun makefile-pickup-targets ()
- "Scan a buffer that contains a makefile for target definitions (dependencies)
-and add them to the list of known targets."
+ "Notice names of all target definitions in Makefile."
(interactive)
(if (not makefile-need-target-pickup)
nil
(setq makefile-has-prereqs nil)
(save-excursion
(goto-char (point-min))
- (while (re-search-forward makefile-dependency-regex (point-max) t)
+ (while (re-search-forward makefile-dependency-regex nil t)
(makefile-add-this-line-targets)))
(message "Read targets OK.")))
(message "Picked up target \"%s\" from line %d"
target-name line-number)))))))))
-
(defun makefile-pickup-macros ()
- "Scan a buffer that contains a makefile for macro definitions
-and add them to the list of known macros."
+ "Notice names of all macro definitions in Makefile."
(interactive)
(if (not makefile-need-macro-pickup)
nil
(setq makefile-macro-table nil)
(save-excursion
(goto-char (point-min))
- (while (re-search-forward makefile-macroassign-regex (point-max) t)
+ (while (re-search-forward makefile-macroassign-regex nil t)
(makefile-add-this-line-macro)
(forward-line 1)))
(message "Read macros OK.")))
(save-excursion
(beginning-of-line)
(skip-chars-forward " \t")
- (if (not (eolp))
- (let* ((start-of-macro-name (point))
- (line-number (1+ (count-lines (point-min) (point))))
- (macro-name (progn
- (skip-chars-forward "^ \t:#=*")
- (buffer-substring start-of-macro-name (point)))))
- (if (makefile-remember-macro macro-name)
- (message "Picked up macro \"%s\" from line %d"
- macro-name line-number))))))
+ (unless (eolp)
+ (let* ((start-of-macro-name (point))
+ (line-number (1+ (count-lines (point-min) (point))))
+ (macro-name (progn
+ (skip-chars-forward "^ \t:#=*")
+ (buffer-substring start-of-macro-name (point)))))
+ (if (makefile-remember-macro macro-name)
+ (message "Picked up macro \"%s\" from line %d"
+ macro-name line-number))))))
(defun makefile-pickup-everything (arg)
- "Calls makefile-pickup-targets and makefile-pickup-macros.
-See their documentation for what they do.
+ "Notice names of all macros and targets in Makefile.
Prefix arg means force pickups to be redone."
(interactive "P")
(if arg
(makefile-pickup-filenames-as-targets)))
(defun makefile-pickup-filenames-as-targets ()
- "Scan the current directory for filenames, check each filename
-against makefile-ignored-files-in-pickup-regex and add all qualifying
-names to the list of known targets."
+ "Scan the current directory for filenames to use as targets.
+Checks each filename against `makefile-ignored-files-in-pickup-regex'
+and adds all qualifying names to the list of known targets."
(interactive)
(let* ((dir (file-name-directory (buffer-file-name)))
(raw-filename-list (if dir
(file-name-all-completions "" dir)
(file-name-all-completions "" ""))))
- (mapcar '(lambda (name)
+ (mapcar (lambda (name)
(if (and (not (file-directory-p name))
(not (string-match makefile-ignored-files-in-pickup-regex
name)))
\f
+;; Backslashification. Stolen from cc-mode.el.
+
+(defun makefile-backslash-region (from to delete-flag)
+ "Insert, align, or delete end-of-line backslashes on the lines in the region.
+With no argument, inserts backslashes and aligns existing backslashes.
+With an argument, deletes the backslashes.
+
+This function does not modify the last line of the region if the region ends
+right at the start of the following line; it does not modify blank lines
+at the start of the region. So you can put the region around an entire macro
+definition and conveniently use this command."
+ (interactive "r\nP")
+ (save-excursion
+ (goto-char from)
+ (let ((column makefile-backslash-column)
+ (endmark (make-marker)))
+ (move-marker endmark to)
+ ;; Compute the smallest column number past the ends of all the lines.
+ (if makefile-backslash-align
+ (progn
+ (if (not delete-flag)
+ (while (< (point) to)
+ (end-of-line)
+ (if (= (preceding-char) ?\\)
+ (progn (forward-char -1)
+ (skip-chars-backward " \t")))
+ (setq column (max column (1+ (current-column))))
+ (forward-line 1)))
+ ;; Adjust upward to a tab column, if that doesn't push
+ ;; past the margin.
+ (if (> (% column tab-width) 0)
+ (let ((adjusted (* (/ (+ column tab-width -1) tab-width)
+ tab-width)))
+ (if (< adjusted (window-width))
+ (setq column adjusted))))))
+ ;; Don't modify blank lines at start of region.
+ (goto-char from)
+ (while (and (< (point) endmark) (eolp))
+ (forward-line 1))
+ ;; Add or remove backslashes on all the lines.
+ (while (and (< (point) endmark)
+ ;; Don't backslashify the last line
+ ;; if the region ends right at the start of the next line.
+ (save-excursion
+ (forward-line 1)
+ (< (point) endmark)))
+ (if (not delete-flag)
+ (makefile-append-backslash column)
+ (makefile-delete-backslash))
+ (forward-line 1))
+ (move-marker endmark nil))))
+
+(defun makefile-append-backslash (column)
+ (end-of-line)
+ ;; Note that "\\\\" is needed to get one backslash.
+ (if (= (preceding-char) ?\\)
+ (progn (forward-char -1)
+ (delete-horizontal-space)
+ (indent-to column (if makefile-backslash-align nil 1)))
+ (indent-to column (if makefile-backslash-align nil 1))
+ (insert "\\")))
+
+(defun makefile-delete-backslash ()
+ (end-of-line)
+ (or (bolp)
+ (progn
+ (forward-char -1)
+ (if (looking-at "\\\\")
+ (delete-region (1+ (point))
+ (progn (skip-chars-backward " \t") (point)))))))
+
+\f
+
+;; Filling
+
+(defun makefile-fill-paragraph (arg)
+ ;; Fill comments, backslashed lines, and variable definitions
+ ;; specially.
+ (save-excursion
+ (beginning-of-line)
+ (cond
+ ((looking-at "^#+")
+ ;; Found a comment. Set the fill prefix, and find the paragraph
+ ;; boundaries by searching for lines that look like comment-only
+ ;; lines.
+ (let ((fill-prefix (match-string-no-properties 0))
+ (fill-paragraph-function nil))
+ (save-excursion
+ (save-restriction
+ (narrow-to-region
+ ;; Search backwards.
+ (save-excursion
+ (while (and (zerop (forward-line -1))
+ (looking-at "^#")))
+ ;; We may have gone too far. Go forward again.
+ (or (looking-at "^#")
+ (forward-line 1))
+ (point))
+ ;; Search forwards.
+ (save-excursion
+ (while (looking-at "^#")
+ (forward-line))
+ (point)))
+ (fill-paragraph nil)
+ t))))
+
+ ;; Must look for backslashed-region before looking for variable
+ ;; assignment.
+ ((or (eq (char-before (line-end-position 1)) ?\\)
+ (eq (char-before (line-end-position 0)) ?\\))
+ ;; A backslash region. Find beginning and end, remove
+ ;; backslashes, fill, and then reapply backslahes.
+ (end-of-line)
+ (let ((beginning
+ (save-excursion
+ (end-of-line 0)
+ (while (= (preceding-char) ?\\)
+ (end-of-line 0))
+ (forward-char)
+ (point)))
+ (end
+ (save-excursion
+ (while (= (preceding-char) ?\\)
+ (end-of-line 2))
+ (point))))
+ (save-restriction
+ (narrow-to-region beginning end)
+ (makefile-backslash-region (point-min) (point-max) t)
+ (let ((fill-paragraph-function nil))
+ (fill-paragraph nil))
+ (makefile-backslash-region (point-min) (point-max) nil)
+ (goto-char (point-max))
+ (if (< (skip-chars-backward "\n") 0)
+ (delete-region (point) (point-max))))))
+
+ ((looking-at makefile-macroassign-regex)
+ ;; Have a macro assign. Fill just this line, and then backslash
+ ;; resulting region.
+ (save-restriction
+ (narrow-to-region (point) (line-beginning-position 2))
+ (let ((fill-paragraph-function nil))
+ (fill-paragraph nil))
+ (makefile-backslash-region (point-min) (point-max) nil)))))
+
+ ;; Always return non-nil so we don't fill anything else.
+ t)
+
+\f
+
;;; ------------------------------------------------------------
;;; Browser mode.
;;; ------------------------------------------------------------
;;;
(defun makefile-browser-quit ()
- "Leave the makefile-browser-buffer and return to the buffer
-from that it has been entered."
+ "Leave the browser and return to the makefile buffer."
(interactive)
(let ((my-client makefile-browser-client))
(setq makefile-browser-client nil) ; we quitted, so NO client!
(set-buffer-modified-p nil)
- (kill-buffer (current-buffer))
+ (quit-window t)
(pop-to-buffer my-client)))
;;;
(beginning-of-line)
(if (makefile-browser-on-macro-line-p)
(let ((macro-name (makefile-browser-this-line-macro-name)))
- (kill-line)
+ (delete-region (point) (progn (end-of-line) (point)))
(insert
(makefile-browser-format-macro-line
macro-name
(makefile-browser-get-state-for-line this-line))))
(let ((target-name (makefile-browser-this-line-target-name)))
- (kill-line)
+ (delete-region (point) (progn (end-of-line) (point)))
(insert
(makefile-browser-format-target-line
target-name
(defun makefile-browser-insert-continuation ()
"Insert a makefile continuation.
-In the browser\'s client buffer, go to (end-of-line), insert a \'\\\'
+In the makefile buffer, go to (end-of-line), insert a \'\\\'
character, insert a new blank line, go to that line and indent by one TAB.
This is most useful in the process of creating continued lines when copying
large dependencies from the browser to the client buffer.
\(point) advances accordingly in the client buffer."
(interactive)
- (save-excursion
- (set-buffer makefile-browser-client)
+ (with-current-buffer makefile-browser-client
(end-of-line)
(insert "\\\n\t")))
(defun makefile-browser-insert-selection ()
- "Insert all browser-selected targets and/or macros in the browser\'s
-client buffer.
-Insertion takes place at (point)."
+ "Insert all selected targets and/or macros in the makefile buffer.
+Insertion takes place at point."
(interactive)
(save-excursion
(goto-line 1)
(message "No macros or targets to browse! Consider running 'makefile-pickup-everything\'"))
(let ((browser-buffer (get-buffer-create makefile-browser-buffer-name)))
(pop-to-buffer browser-buffer)
- (make-variable-buffer-local 'makefile-browser-selection-vector)
(makefile-browser-fill targets macros)
(shrink-window-if-larger-than-buffer)
- (setq makefile-browser-selection-vector
- (make-vector (+ (length targets) (length macros)) nil))
+ (set (make-local-variable 'makefile-browser-selection-vector)
+ (make-vector (+ (length targets) (length macros)) nil))
(makefile-browser-start-interaction))))
(defun makefile-switch-to-browser ()
filename)) ; return the filename
(defun makefile-generate-temporary-filename ()
- "Create a filename suitable for use in makefile-save-temporary.
+ "Create a filename suitable for use in `makefile-save-temporary'.
Be careful to allow brain-dead file systems (DOS, SYSV ...) to cope
-with the generated name !"
+with the generated name!"
(let ((my-name (user-login-name))
(my-uid (int-to-string (user-uid))))
(concat "mktmp"
my-uid))))
(defun makefile-query-targets (filename target-table prereq-list)
- "This function fills the up-to-date-overview-buffer.
-It checks each target in target-table using makefile-query-one-target-method
+ "Fill the up-to-date overview buffer.
+Checks each target in TARGET-TABLE using `makefile-query-one-target-method'
and generates the overview, one line per target name."
(insert
(mapconcat
(function (lambda (item)
(let* ((target-name (car item))
(no-prereqs (not (member target-name prereq-list)))
- (needs-rebuild (or no-prereqs
+ (needs-rebuild (or no-prereqs
(funcall
makefile-query-one-target-method
target-name
(delete-file filename)) ; remove the tmpfile
(defun makefile-query-by-make-minus-q (target &optional filename)
- (not (zerop (call-process makefile-brave-make nil nil nil "-f" filename "-q" target))))
+ (not (eq 0
+ (call-process makefile-brave-make nil nil nil
+ "-f" filename "-q" target))))
\f
(defun makefile-cleanup-continuations ()
(if (eq major-mode 'makefile-mode)
- (if (and makefile-cleanup-continuations-p
+ (if (and makefile-cleanup-continuations
(not buffer-read-only))
(save-excursion
(goto-char (point-min))
- (while (re-search-forward "\\\\[ \t]+$" (point-max) t)
+ (while (re-search-forward "\\\\[ \t]+$" nil t)
(replace-match "\\" t t))))))
;;; ------------------------------------------------------------
(defun makefile-warn-suspicious-lines ()
- (let ((dont-save nil))
- (if (eq major-mode 'makefile-mode)
- (let ((suspicious
- (save-excursion
- (goto-char (point-min))
- (re-search-forward
- "\\(^[\t]+$\\)\\|\\(^[ ]+[\t]\\)" (point-max) t))))
- (if suspicious
- (let ((line-nr (count-lines (point-min) suspicious)))
- (setq dont-save
- (not (y-or-n-p
- (format "Suspicious line %d. Save anyway "
- line-nr))))))))
- dont-save))
-
+ ;; Returning non-nil cancels the save operation
+ (if (eq major-mode 'makefile-mode)
+ (save-excursion
+ (goto-char (point-min))
+ (if (re-search-forward "^\\(\t+$\\| +\t\\)" nil t)
+ (not (y-or-n-p
+ (format "Suspicious line %d. Save anyway? "
+ (count-lines (point-min) (point)))))))))
+
+(defun makefile-warn-continuations ()
+ (if (eq major-mode 'makefile-mode)
+ (save-excursion
+ (goto-char (point-min))
+ (if (re-search-forward "\\\\[ \t]+$" nil t)
+ (not (y-or-n-p
+ (format "Suspicious continuation in line %d. Save anyway? "
+ (count-lines (point-min) (point)))))))))
\f
;;; ------------------------------------------------------------
;;; ------------------------------------------------------------
(defun makefile-insert-gmake-function ()
- "This function is intended to help you using the numerous
-macro-like \'function calls\' of GNU make.
-It will ask you for the name of the function you wish to
-use (with completion), then, after you selected the function,
-it will prompt you for all required parameters.
-This function \'knows\' about the required parameters of every
-GNU make function and will use meaningfull prompts for the
-various args, making it much easier to take advantage of this
-powerful GNU make feature."
+ "Insert a GNU make function call.
+Asks for the name of the function to use (with completion).
+Then prompts for all required parameters."
(interactive)
(let* ((gm-function-name (completing-read
"Function: "
(defun makefile-prompt-for-gmake-funargs (function-name prompt-list)
(mapconcat
(function (lambda (one-prompt)
- (read-string (format "[%s] %s: " function-name one-prompt) nil)))
+ (read-string (format "[%s] %s: " function-name one-prompt)
+ nil)))
prompt-list
","))
-
+
\f
;;; ------------------------------------------------------------
(cons (list macro-name) makefile-macro-table)))))
(defun makefile-forward-after-target-colon ()
-"Move point forward after the terminating colon
-of a target has been inserted.
-This accts according to the value of makefile-tab-after-target-colon ."
+ "Move point forward after inserting the terminating colon of a target.
+This acts according to the value of `makefile-tab-after-target-colon'."
(if makefile-tab-after-target-colon
(insert "\t")
(insert " ")))
"Determine if point is on a macro line in the browser."
(save-excursion
(beginning-of-line)
- (re-search-forward "\\$[{(]" (makefile-end-of-line-point) t)))
+ (re-search-forward "\\$[{(]" (line-end-position) t)))
(defun makefile-browser-this-line-target-name ()
"Extract the target name from a line in the browser."
(save-excursion
(end-of-line)
(skip-chars-backward "^ \t")
- (buffer-substring (point) (1- (makefile-end-of-line-point)))))
+ (buffer-substring (point) (1- (line-end-position)))))
(defun makefile-browser-this-line-macro-name ()
"Extract the macro name from a line in the browser."
(save-excursion
(beginning-of-line)
- (re-search-forward "\\$[{(]" (makefile-end-of-line-point) t)
+ (re-search-forward "\\$[{(]" (line-end-position) t)
(let ((macro-start (point)))
(skip-chars-forward "^})")
(buffer-substring macro-start (point)))))
(defun makefile-format-macro-ref (macro-name)
- "Format a macro reference according to the value of the
-configuration variable makefile-use-curly-braces-for-macros-p ."
+ "Format a macro reference.
+Uses `makefile-use-curly-braces-for-macros-p'."
(if (or (char-equal ?\( (string-to-char macro-name))
(char-equal ?\{ (string-to-char macro-name)))
(format "$%s" macro-name)
(defun makefile-browser-toggle-state-for-line (n)
(makefile-browser-set-state-for-line n (not (makefile-browser-get-state-for-line n))))
-(defun makefile-beginning-of-line-point ()
- (save-excursion
- (beginning-of-line)
- (point)))
-
-(defun makefile-end-of-line-point ()
- (save-excursion
- (end-of-line)
- (point)))
-
(defun makefile-last-line-p ()
- (= (makefile-end-of-line-point) (point-max)))
+ (= (line-end-position) (point-max)))
(defun makefile-first-line-p ()
- (= (makefile-beginning-of-line-point) (point-min)))
+ (= (line-beginning-position) (point-min)))
\f
-;;; Support for other packages, like add-log and imenu.
+;;; Support for other packages, like add-log.
(defun makefile-add-log-defun ()
- "Return name of target or macro point is in, or nil."
+ "Return name of target or variable assignment that point is in.
+If it isn't in one, return nil."
(save-excursion
- (beginning-of-line)
- (cond
- ((looking-at makefile-macroassign-regex)
- (buffer-substring (match-beginning 1)
- (match-end 1)))
- ((progn
- (forward-char)
- (re-search-backward makefile-dependency-regex nil t))
- (buffer-substring (match-beginning 1)
- (match-end 1)))
- (t nil))))
-
-;; FIXME it might be nice to have them separated by macro vs target.
-(defun makefile-menu-index-function ()
- "Generate alist of indices for imenu."
- (let (alist
- stupid
- (re (concat makefile-dependency-regex
- "\\|"
- makefile-macroassign-regex)))
- (imenu-progress-message stupid 0)
- (goto-char (point-min))
- (while (re-search-forward re nil t)
- (imenu-progress-message stupid)
- (setq zardoz (list (match-beginning 0) (match-end 0)
- (match-beginning 1) (match-end 1)
- ))
- (let ((n (if (match-beginning 1) 1 5)))
- (setq alist (cons
- (cons (buffer-substring (match-beginning n)
- (match-end n))
- (match-beginning n))
- alist))))
- (imenu-progress-message stupid 100)
- (nreverse alist)))
-
-;;; makefile.el ends here
+ (let (found)
+ (beginning-of-line)
+ ;; Scan back line by line, noticing when we come to a
+ ;; variable or rule definition, and giving up when we see
+ ;; a line that is not part of either of those.
+ (while (not (or (setq found
+ (when (or (looking-at makefile-macroassign-regex)
+ (looking-at makefile-dependency-regex))
+ (match-string-no-properties 1)))
+ ;; Don't keep looking across a blank line or comment.
+ (looking-at "$\\|#")
+ (not (zerop (forward-line -1))))))
+ found)))
+
+(provide 'make-mode)
+
+;;; arch-tag: bd23545a-de91-44fb-b1b2-feafbb2635a0
+;;; make-mode.el ends here