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-;;; cmake-mode.el --- major-mode for editing CMake sources
-
-;; Package-Requires: ((emacs "24.1"))
-
-; Distributed under the OSI-approved BSD 3-Clause License. See accompanying
-; file Copyright.txt or https://cmake.org/licensing for details.
-
-;------------------------------------------------------------------------------
-
-;;; Commentary:
-
-;; Provides syntax highlighting and indentation for CMakeLists.txt and
-;; *.cmake source files.
-;;
-;; Add this code to your .emacs file to use the mode:
-;;
-;; (setq load-path (cons (expand-file-name "/dir/with/cmake-mode") load-path))
-;; (require 'cmake-mode)
-
-;------------------------------------------------------------------------------
-
-;;; Code:
-;;
-;; cmake executable variable used to run cmake --help-command
-;; on commands in cmake-mode
-;;
-;; cmake-command-help Written by James Bigler
-;;
-
-;;; This file is extracted from the cmake repository (Auxiliary/cmake-mode.el)
-(require 'rst)
-(require 'rx)
-
-(defcustom cmake-mode-cmake-executable "cmake"
- "*The name of the cmake executable.
-
-This can be either absolute or looked up in $PATH. You can also
-set the path with these commands:
- (setenv \"PATH\" (concat (getenv \"PATH\") \";C:\\\\Program Files\\\\CMake 2.8\\\\bin\"))
- (setenv \"PATH\" (concat (getenv \"PATH\") \":/usr/local/cmake/bin\"))"
- :type 'file
- :group 'cmake)
-
-;; Keywords
-(defconst cmake-keywords-block-open '("BLOCK" "IF" "MACRO" "FOREACH" "ELSE" "ELSEIF" "WHILE" "FUNCTION"))
-(defconst cmake-keywords-block-close '("ENDBLOCK" "ENDIF" "ENDFOREACH" "ENDMACRO" "ELSE" "ELSEIF" "ENDWHILE" "ENDFUNCTION"))
-(defconst cmake-keywords
- (let ((kwds (append cmake-keywords-block-open cmake-keywords-block-close nil)))
- (delete-dups kwds)))
-
-;; Regular expressions used by line indentation function.
-;;
-(defconst cmake-regex-blank "^[ \t]*$")
-(defconst cmake-regex-comment "#.*")
-(defconst cmake-regex-paren-left "(")
-(defconst cmake-regex-paren-right ")")
-(defconst cmake-regex-closing-parens-line (concat "^[[:space:]]*\\("
- cmake-regex-paren-right
- "+\\)[[:space:]]*$"))
-(defconst cmake-regex-argument-quoted
- (rx ?\" (* (or (not (any ?\" ?\\)) (and ?\\ anything))) ?\"))
-(defconst cmake-regex-argument-unquoted
- (rx (or (not (any space "()#\"\\\n")) (and ?\\ nonl))
- (* (or (not (any space "()#\\\n")) (and ?\\ nonl)))))
-(defconst cmake-regex-token
- (rx-to-string `(group (or (regexp ,cmake-regex-comment)
- ?\( ?\)
- (regexp ,cmake-regex-argument-unquoted)
- (regexp ,cmake-regex-argument-quoted)))))
-(defconst cmake-regex-indented
- (rx-to-string `(and bol (* (group (or (regexp ,cmake-regex-token) (any space ?\n)))))))
-(defconst cmake-regex-block-open
- (rx-to-string `(and symbol-start (or ,@(append cmake-keywords-block-open
- (mapcar 'downcase cmake-keywords-block-open))) symbol-end)))
-(defconst cmake-regex-block-close
- (rx-to-string `(and symbol-start (or ,@(append cmake-keywords-block-close
- (mapcar 'downcase cmake-keywords-block-close))) symbol-end)))
-(defconst cmake-regex-close
- (rx-to-string `(and bol (* space) (regexp ,cmake-regex-block-close)
- (* space) (regexp ,cmake-regex-paren-left))))
-(defconst cmake-regex-token-paren-left (concat "^" cmake-regex-paren-left "$"))
-(defconst cmake-regex-token-paren-right (concat "^" cmake-regex-paren-right "$"))
-
-;------------------------------------------------------------------------------
-
-;; Line indentation helper functions
-
-(defun cmake-line-starts-inside-string ()
- "Determine whether the beginning of the current line is in a string."
- (save-excursion
- (beginning-of-line)
- (let ((parse-end (point)))
- (goto-char (point-min))
- (nth 3 (parse-partial-sexp (point) parse-end))
- )
- )
- )
-
-(defun cmake-find-last-indented-line ()
- "Move to the beginning of the last line that has meaningful indentation."
- (let ((point-start (point))
- region)
- (forward-line -1)
- (setq region (buffer-substring-no-properties (point) point-start))
- (while (and (not (bobp))
- (or (looking-at cmake-regex-blank)
- (cmake-line-starts-inside-string)
- (not (and (string-match cmake-regex-indented region)
- (= (length region) (match-end 0))))))
- (forward-line -1)
- (setq region (buffer-substring-no-properties (point) point-start))
- )
- )
- )
-
-;------------------------------------------------------------------------------
-
-;;
-;; Indentation increment.
-;;
-(defcustom cmake-tab-width 2
- "Number of columns to indent cmake blocks"
- :type 'integer
- :group 'cmake)
-
-;;
-;; Line indentation function.
-;;
-(defun cmake-indent ()
- "Indent current line as CMake code."
- (interactive)
- (unless (cmake-line-starts-inside-string)
- (if (bobp)
- (cmake-indent-line-to 0)
- (let (cur-indent)
- (save-excursion
- (beginning-of-line)
- (let ((point-start (point))
- (closing-parens-only (looking-at cmake-regex-closing-parens-line))
- (case-fold-search t) ;; case-insensitive
- token)
- ;; Search back for the last indented line.
- (cmake-find-last-indented-line)
- ;; Start with the indentation on this line.
- (setq cur-indent (current-indentation))
- (if closing-parens-only
- (let ((open-parens 0))
- (while (re-search-forward cmake-regex-token point-start t)
- (setq token (match-string 0))
- (cond
- ((string-match cmake-regex-token-paren-left token)
- (setq open-parens (+ open-parens 1)))
- ((string-match cmake-regex-token-paren-right token)
- (setq open-parens (- open-parens 1)))))
- ;; Don't outdent if last indented line has open parens
- (unless (> open-parens 0)
- (setq cur-indent (- cur-indent cmake-tab-width))))
- ;; Skip detailed analysis if last indented line is a 'closing
- ;; parens only line'
- (unless (looking-at cmake-regex-closing-parens-line)
- ;; Search forward counting tokens that adjust indentation.
- (while (re-search-forward cmake-regex-token point-start t)
- (setq token (match-string 0))
- (when (or (string-match cmake-regex-token-paren-left token)
- (and (string-match cmake-regex-block-open token)
- (looking-at (concat "[ \t]*" cmake-regex-paren-left))))
- (setq cur-indent (+ cur-indent cmake-tab-width)))
- (when (string-match cmake-regex-token-paren-right token)
- (setq cur-indent (- cur-indent cmake-tab-width)))
- ))
- (goto-char point-start)
- ;; If next token closes the block, decrease indentation
- (when (looking-at cmake-regex-close)
- (setq cur-indent (- cur-indent cmake-tab-width))
- )
- )
- )
- )
- ;; Indent this line by the amount selected.
- (cmake-indent-line-to (max cur-indent 0))
- )
- )
- )
- )
-
-(defun cmake-point-in-indendation ()
- (string-match "^[ \\t]*$" (buffer-substring (point-at-bol) (point))))
-
-(defun cmake-indent-line-to (column)
- "Indent the current line to COLUMN.
-If point is within the existing indentation it is moved to the end of
-the indentation. Otherwise it retains the same position on the line"
- (if (cmake-point-in-indendation)
- (indent-line-to column)
- (save-excursion (indent-line-to column))))
-
-;------------------------------------------------------------------------------
-
-;;
-;; Helper functions for buffer
-;;
-(defun cmake-unscreamify-buffer ()
- "Convert all CMake commands to lowercase in buffer."
- (interactive)
- (save-excursion
- (goto-char (point-min))
- (while (re-search-forward "^\\([ \t]*\\)\\_<\\(\\(?:\\w\\|\\s_\\)+\\)\\_>\\([ \t]*(\\)" nil t)
- (replace-match
- (concat
- (match-string 1)
- (downcase (match-string 2))
- (match-string 3))
- t))
- )
- )
-
-
-;------------------------------------------------------------------------------
-
-;;
-;; Navigation / marking by function or macro
-;;
-
-(defconst cmake--regex-defun-start
- (rx line-start
- (zero-or-more space)
- (or "function" "macro")
- (zero-or-more space)
- "("))
-
-(defconst cmake--regex-defun-end
- (rx line-start
- (zero-or-more space)
- "end"
- (or "function" "macro")
- (zero-or-more space)
- "(" (zero-or-more (not-char ")")) ")"))
-
-(defun cmake-beginning-of-defun ()
- "Move backward to the beginning of a CMake function or macro.
-
-Return t unless search stops due to beginning of buffer."
- (interactive)
- (when (not (region-active-p))
- (push-mark))
- (let ((case-fold-search t))
- (when (re-search-backward cmake--regex-defun-start nil 'move)
- t)))
-
-(defun cmake-end-of-defun ()
- "Move forward to the end of a CMake function or macro.
-
-Return t unless search stops due to end of buffer."
- (interactive)
- (when (not (region-active-p))
- (push-mark))
- (let ((case-fold-search t))
- (when (re-search-forward cmake--regex-defun-end nil 'move)
- (forward-line)
- t)))
-
-(defun cmake-mark-defun ()
- "Mark the current CMake function or macro.
-
-This puts the mark at the end, and point at the beginning."
- (interactive)
- (cmake-end-of-defun)
- (push-mark nil :nomsg :activate)
- (cmake-beginning-of-defun))
-
-
-;------------------------------------------------------------------------------
-
-;;
-;; Keyword highlighting regex-to-face map.
-;;
-(defconst cmake-font-lock-keywords
- `((,(rx-to-string `(and symbol-start
- (or ,@cmake-keywords
- ,@(mapcar #'downcase cmake-keywords))
- symbol-end))
- . font-lock-keyword-face)
- (,(rx symbol-start (group (+ (or word (syntax symbol)))) (* blank) ?\()
- 1 font-lock-function-name-face)
- (,(rx "${" (group (+(any alnum "-_+/."))) "}")
- 1 font-lock-variable-name-face t)
- )
- "Highlighting expressions for CMake mode.")
-
-;------------------------------------------------------------------------------
-
-(defun cmake--syntax-propertize-until-bracket-close (syntax)
- ;; This function assumes that a previous search has matched the
- ;; beginning of a bracket_comment or bracket_argument and that the
- ;; second capture group has matched the equal signs between the two
- ;; opening brackets
- (let* ((mb (match-beginning 2))
- (me (match-end 2))
- (cb (format "]%s]" (buffer-substring mb me))))
- (save-match-data
- (if (search-forward cb end 'move)
- (progn
- (setq me (match-end 0))
- (put-text-property
- (1- me)
- me
- 'syntax-table
- (string-to-syntax syntax)))
- (setq me end)))
- (put-text-property
- (match-beginning 1)
- me
- 'syntax-multiline
- t)))
-
-(defconst cmake--syntax-propertize-function
- (syntax-propertize-rules
- ("\\(#\\)\\[\\(=*\\)\\["
- (1
- (prog1 "!" (cmake--syntax-propertize-until-bracket-close "!"))))
- ("\\(\\[\\)\\(=*\\)\\["
- (1
- (prog1 "|" (cmake--syntax-propertize-until-bracket-close "|"))))))
-
-;; Syntax table for this mode.
-(defvar cmake-mode-syntax-table nil
- "Syntax table for CMake mode.")
-(or cmake-mode-syntax-table
- (setq cmake-mode-syntax-table
- (let ((table (make-syntax-table)))
- (modify-syntax-entry ?\( "()" table)
- (modify-syntax-entry ?\) ")(" table)
- (modify-syntax-entry ?# "<" table)
- (modify-syntax-entry ?\n ">" table)
- (modify-syntax-entry ?$ "'" table)
- table)))
-
-;;
-;; User hook entry point.
-;;
-(defvar cmake-mode-hook nil)
-
-;;------------------------------------------------------------------------------
-;; Mode definition.
-;;
-;;;###autoload
-(define-derived-mode cmake-mode prog-mode "CMake"
- "Major mode for editing CMake source files."
-
- ; Setup font-lock mode.
- (set (make-local-variable 'font-lock-defaults) '(cmake-font-lock-keywords))
- ; Setup indentation function.
- (set (make-local-variable 'indent-line-function) 'cmake-indent)
- ; Setup comment syntax.
- (set (make-local-variable 'comment-start) "#")
- ;; Setup syntax propertization
- (set (make-local-variable 'syntax-propertize-function) cmake--syntax-propertize-function)
- (add-hook 'syntax-propertize-extend-region-functions #'syntax-propertize-multiline nil t))
-
-;; Default cmake-mode key bindings
-(define-key cmake-mode-map "\e\C-a" #'cmake-beginning-of-defun)
-(define-key cmake-mode-map "\e\C-e" #'cmake-end-of-defun)
-(define-key cmake-mode-map "\e\C-h" #'cmake-mark-defun)
-
-
-; Help mode starts here
-
-
-;;;###autoload
-(defun cmake-command-run (type &optional topic buffer)
- "Runs the command cmake with the arguments specified. The
-optional argument topic will be appended to the argument list."
- (interactive "s")
- (let* ((bufname (if buffer buffer (concat "*CMake" type (if topic "-") topic "*")))
- (buffer (if (get-buffer bufname) (get-buffer bufname) (generate-new-buffer bufname)))
- (command (concat cmake-mode-cmake-executable " " type " " topic))
- ;; Turn of resizing of mini-windows for shell-command.
- (resize-mini-windows nil)
- )
- (shell-command command buffer)
- (save-selected-window
- (select-window (display-buffer buffer 'not-this-window))
- (cmake-mode)
- (read-only-mode 1)
- (view-mode 1))
- )
- )
-
-;;;###autoload
-(defun cmake-command-run-help (type &optional topic buffer)
- "`cmake-command-run' but rendered in `rst-mode'."
- (interactive "s")
- (let* ((bufname (if buffer buffer (concat "*CMake" type (if topic "-") topic "*")))
- (buffer (if (get-buffer bufname) (get-buffer bufname) (generate-new-buffer bufname)))
- (command (concat cmake-mode-cmake-executable " " type " " topic))
- ;; Turn of resizing of mini-windows for shell-command.
- (resize-mini-windows nil)
- )
- (shell-command command buffer)
- (save-selected-window
- (select-window (display-buffer buffer 'not-this-window))
- (rst-mode)
- (read-only-mode 1)
- (view-mode 1))
- )
- )
-
-;;;###autoload
-(defun cmake-help-list-commands ()
- "Prints out a list of the cmake commands."
- (interactive)
- (cmake-command-run-help "--help-command-list")
- )
-
-(defvar cmake-commands '() "List of available topics for --help-command.")
-(defvar cmake-help-command-history nil "Command read history.")
-(defvar cmake-modules '() "List of available topics for --help-module.")
-(defvar cmake-help-module-history nil "Module read history.")
-(defvar cmake-variables '() "List of available topics for --help-variable.")
-(defvar cmake-help-variable-history nil "Variable read history.")
-(defvar cmake-properties '() "List of available topics for --help-property.")
-(defvar cmake-help-property-history nil "Property read history.")
-(defvar cmake-help-complete-history nil "Complete help read history.")
-(defvar cmake-string-to-list-symbol
- '(("command" cmake-commands cmake-help-command-history)
- ("module" cmake-modules cmake-help-module-history)
- ("variable" cmake-variables cmake-help-variable-history)
- ("property" cmake-properties cmake-help-property-history)
- ))
-
-(defun cmake-get-list (listname)
- "If the value of LISTVAR is nil, run cmake --help-LISTNAME-list
-and store the result as a list in LISTVAR."
- (let ((listvar (car (cdr (assoc listname cmake-string-to-list-symbol)))))
- (if (not (symbol-value listvar))
- (let ((temp-buffer-name "*CMake Temporary*"))
- (save-window-excursion
- (cmake-command-run-help (concat "--help-" listname "-list") nil temp-buffer-name)
- (with-current-buffer temp-buffer-name
- ; FIXME: Ignore first line if it is "cmake version ..." from CMake < 3.0.
- (set listvar (split-string (buffer-substring-no-properties (point-min) (point-max)) "\n" t)))))
- (symbol-value listvar)
- ))
- )
-
-(require 'thingatpt)
-(defun cmake-symbol-at-point ()
- (let ((symbol (symbol-at-point)))
- (and (not (null symbol))
- (symbol-name symbol))))
-
-(defun cmake-help-type (type)
- (let* ((default-entry (cmake-symbol-at-point))
- (history (car (cdr (cdr (assoc type cmake-string-to-list-symbol)))))
- (input (completing-read
- (format "CMake %s: " type) ; prompt
- (cmake-get-list type) ; completions
- nil ; predicate
- t ; require-match
- default-entry ; initial-input
- history
- )))
- (if (string= input "")
- (error "No argument given")
- input))
- )
-
-;;;###autoload
-(defun cmake-help-command ()
- "Prints out the help message for the command the cursor is on."
- (interactive)
- (cmake-command-run-help "--help-command" (cmake-help-type "command") "*CMake Help*"))
-
-;;;###autoload
-(defun cmake-help-module ()
- "Prints out the help message for the module the cursor is on."
- (interactive)
- (cmake-command-run-help "--help-module" (cmake-help-type "module") "*CMake Help*"))
-
-;;;###autoload
-(defun cmake-help-variable ()
- "Prints out the help message for the variable the cursor is on."
- (interactive)
- (cmake-command-run-help "--help-variable" (cmake-help-type "variable") "*CMake Help*"))
-
-;;;###autoload
-(defun cmake-help-property ()
- "Prints out the help message for the property the cursor is on."
- (interactive)
- (cmake-command-run-help "--help-property" (cmake-help-type "property") "*CMake Help*"))
-
-;;;###autoload
-(defun cmake-help ()
- "Queries for any of the four available help topics and prints out the appropriate page."
- (interactive)
- (let* ((default-entry (cmake-symbol-at-point))
- (command-list (cmake-get-list "command"))
- (variable-list (cmake-get-list "variable"))
- (module-list (cmake-get-list "module"))
- (property-list (cmake-get-list "property"))
- (all-words (append command-list variable-list module-list property-list))
- (input (completing-read
- "CMake command/module/variable/property: " ; prompt
- all-words ; completions
- nil ; predicate
- t ; require-match
- default-entry ; initial-input
- 'cmake-help-complete-history
- )))
- (if (string= input "")
- (error "No argument given")
- (if (member input command-list)
- (cmake-command-run-help "--help-command" input "*CMake Help*")
- (if (member input variable-list)
- (cmake-command-run-help "--help-variable" input "*CMake Help*")
- (if (member input module-list)
- (cmake-command-run-help "--help-module" input "*CMake Help*")
- (if (member input property-list)
- (cmake-command-run-help "--help-property" input "*CMake Help*")
- (error "Not a know help topic.") ; this really should not happen
- ))))))
- )
-
-;;;###autoload
-(progn
- (add-to-list 'auto-mode-alist '("CMakeLists\\.txt\\'" . cmake-mode))
- (add-to-list 'auto-mode-alist '("\\.cmake\\'" . cmake-mode)))
-
-; This file provides cmake-mode.
-(provide 'cmake-mode)
-
-;;; cmake-mode.el ends here