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340 lines
11 KiB
340 lines
11 KiB
;=============================================================================
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; CMake - Cross Platform Makefile Generator
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; Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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;
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; Distributed under the OSI-approved BSD License (the "License");
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; see accompanying file Copyright.txt for details.
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;
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; This software is distributed WITHOUT ANY WARRANTY; without even the
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; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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; See the License for more information.
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;=============================================================================
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;;; cmake-mode.el --- major-mode for editing CMake sources
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;------------------------------------------------------------------------------
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;;; Commentary:
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;; Provides syntax highlighting and indentation for CMakeLists.txt and
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;; *.cmake source files.
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;;
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;; Add this code to your .emacs file to use the mode:
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;;
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;; (setq load-path (cons (expand-file-name "/dir/with/cmake-mode") load-path))
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;; (require 'cmake-mode)
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;; (setq auto-mode-alist
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;; (append '(("CMakeLists\\.txt\\'" . cmake-mode)
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;; ("\\.cmake\\'" . cmake-mode))
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;; auto-mode-alist))
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;------------------------------------------------------------------------------
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;;; Code:
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;;
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;; cmake executable variable used to run cmake --help-command
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;; on commands in cmake-mode
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;;
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;; cmake-command-help Written by James Bigler
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;;
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(defcustom cmake-mode-cmake-executable "cmake"
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"*The name of the cmake executable.
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This can be either absolute or looked up in $PATH. You can also
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set the path with these commands:
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(setenv \"PATH\" (concat (getenv \"PATH\") \";C:\\\\Program Files\\\\CMake 2.8\\\\bin\"))
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(setenv \"PATH\" (concat (getenv \"PATH\") \":/usr/local/cmake/bin\"))"
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:type 'file
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:group 'cmake)
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;;
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;; Regular expressions used by line indentation function.
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;;
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(defconst cmake-regex-blank "^[ \t]*$")
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(defconst cmake-regex-comment "#.*")
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(defconst cmake-regex-paren-left "(")
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(defconst cmake-regex-paren-right ")")
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(defconst cmake-regex-argument-quoted
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"\"\\([^\"\\\\]\\|\\\\\\(.\\|\n\\)\\)*\"")
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(defconst cmake-regex-argument-unquoted
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"\\([^ \t\r\n()#\"\\\\]\\|\\\\.\\)\\([^ \t\r\n()#\\\\]\\|\\\\.\\)*")
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(defconst cmake-regex-token (concat "\\(" cmake-regex-comment
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"\\|" cmake-regex-paren-left
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"\\|" cmake-regex-paren-right
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"\\|" cmake-regex-argument-unquoted
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"\\|" cmake-regex-argument-quoted
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"\\)"))
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(defconst cmake-regex-indented (concat "^\\("
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cmake-regex-token
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"\\|" "[ \t\r\n]"
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"\\)*"))
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(defconst cmake-regex-block-open
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"^\\(IF\\|MACRO\\|FOREACH\\|ELSE\\|ELSEIF\\|WHILE\\|FUNCTION\\)$")
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(defconst cmake-regex-block-close
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"^[ \t]*\\(ENDIF\\|ENDFOREACH\\|ENDMACRO\\|ELSE\\|ELSEIF\\|ENDWHILE\\|ENDFUNCTION\\)[ \t]*(")
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;------------------------------------------------------------------------------
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;;
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;; Helper functions for line indentation function.
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;;
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(defun cmake-line-starts-inside-string ()
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"Determine whether the beginning of the current line is in a string."
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(if (save-excursion
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(beginning-of-line)
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(let ((parse-end (point)))
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(beginning-of-buffer)
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(nth 3 (parse-partial-sexp (point) parse-end))
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)
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)
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t
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nil
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)
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)
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(defun cmake-find-last-indented-line ()
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"Move to the beginning of the last line that has meaningful indentation."
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(let ((point-start (point))
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region)
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(forward-line -1)
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(setq region (buffer-substring-no-properties (point) point-start))
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(while (and (not (bobp))
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(or (looking-at cmake-regex-blank)
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(not (and (string-match cmake-regex-indented region)
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(= (length region) (match-end 0))))))
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(forward-line -1)
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(setq region (buffer-substring-no-properties (point) point-start))
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)
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)
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)
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;------------------------------------------------------------------------------
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;;
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;; Line indentation function.
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;;
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(defun cmake-indent ()
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"Indent current line as CMAKE code."
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(interactive)
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(if (cmake-line-starts-inside-string)
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()
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(if (bobp)
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(cmake-indent-line-to 0)
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(let (cur-indent)
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(save-excursion
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(beginning-of-line)
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(let ((point-start (point))
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token)
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; Search back for the last indented line.
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(cmake-find-last-indented-line)
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; Start with the indentation on this line.
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(setq cur-indent (current-indentation))
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; Search forward counting tokens that adjust indentation.
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(while (re-search-forward cmake-regex-token point-start t)
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(setq token (match-string 0))
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(if (string-match (concat "^" cmake-regex-paren-left "$") token)
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(setq cur-indent (+ cur-indent cmake-tab-width))
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)
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(if (string-match (concat "^" cmake-regex-paren-right "$") token)
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(setq cur-indent (- cur-indent cmake-tab-width))
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)
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(if (and
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(string-match cmake-regex-block-open token)
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(looking-at (concat "[ \t]*" cmake-regex-paren-left))
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)
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(setq cur-indent (+ cur-indent cmake-tab-width))
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)
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)
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(goto-char point-start)
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; If this is the end of a block, decrease indentation.
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(if (looking-at cmake-regex-block-close)
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(setq cur-indent (- cur-indent cmake-tab-width))
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)
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)
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)
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; Indent this line by the amount selected.
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(if (< cur-indent 0)
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(cmake-indent-line-to 0)
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(cmake-indent-line-to cur-indent)
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)
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)
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)
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)
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)
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(defun cmake-point-in-indendation ()
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(string-match "^[ \\t]*$" (buffer-substring (point-at-bol) (point))))
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(defun cmake-indent-line-to (column)
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"Indent the current line to COLUMN.
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If point is within the existing indentation it is moved to the end of
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the indentation. Otherwise it retains the same position on the line"
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(if (cmake-point-in-indendation)
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(indent-line-to column)
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(save-excursion (indent-line-to column))))
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;------------------------------------------------------------------------------
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;;
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;; Helper functions for buffer
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;;
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(defun unscreamify-cmake-buffer ()
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"Convert all CMake commands to lowercase in buffer."
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(interactive)
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(setq save-point (point))
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(goto-char (point-min))
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(while (re-search-forward "^\\([ \t]*\\)\\(\\w+\\)\\([ \t]*(\\)" nil t)
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(replace-match
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(concat
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(match-string 1)
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(downcase (match-string 2))
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(match-string 3))
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t))
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(goto-char save-point)
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)
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;------------------------------------------------------------------------------
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;;
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;; Keyword highlighting regex-to-face map.
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;;
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(defconst cmake-font-lock-keywords
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(list '("^[ \t]*\\(\\w+\\)[ \t]*(" 1 font-lock-function-name-face))
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"Highlighting expressions for CMAKE mode."
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)
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;------------------------------------------------------------------------------
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;;
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;; Syntax table for this mode. Initialize to nil so that it is
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;; regenerated when the cmake-mode function is called.
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;;
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(defvar cmake-mode-syntax-table nil "Syntax table for cmake-mode.")
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(setq cmake-mode-syntax-table nil)
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;;
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;; User hook entry point.
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;;
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(defvar cmake-mode-hook nil)
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;;
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;; Indentation increment.
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;;
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(defvar cmake-tab-width 2)
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;------------------------------------------------------------------------------
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;;
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;; CMake mode startup function.
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;;
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(defun cmake-mode ()
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"Major mode for editing CMake listfiles."
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(interactive)
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(kill-all-local-variables)
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(setq major-mode 'cmake-mode)
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(setq mode-name "CMAKE")
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; Create the syntax table
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(setq cmake-mode-syntax-table (make-syntax-table))
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(set-syntax-table cmake-mode-syntax-table)
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(modify-syntax-entry ?_ "w" cmake-mode-syntax-table)
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(modify-syntax-entry ?\( "()" cmake-mode-syntax-table)
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(modify-syntax-entry ?\) ")(" cmake-mode-syntax-table)
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(modify-syntax-entry ?# "<" cmake-mode-syntax-table)
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(modify-syntax-entry ?\n ">" cmake-mode-syntax-table)
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; Setup font-lock mode.
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(make-local-variable 'font-lock-defaults)
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(setq font-lock-defaults '(cmake-font-lock-keywords))
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; Setup indentation function.
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(make-local-variable 'indent-line-function)
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(setq indent-line-function 'cmake-indent)
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; Setup comment syntax.
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(make-local-variable 'comment-start)
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(setq comment-start "#")
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; Run user hooks.
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(run-hooks 'cmake-mode-hook))
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; Help mode starts here
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(defun cmake-command-run (type &optional topic)
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"Runs the command cmake with the arguments specified. The
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optional argument topic will be appended to the argument list."
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(interactive "s")
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(let* ((bufname (concat "*CMake" type (if topic "-") topic "*"))
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(buffer (get-buffer bufname))
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)
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(if buffer
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(display-buffer buffer 'not-this-window)
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;; Buffer doesn't exist. Create it and fill it
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(setq buffer (generate-new-buffer bufname))
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(setq command (concat cmake-mode-cmake-executable " " type " " topic))
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(message "Running %s" command)
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;; We don't want the contents of the shell-command running to the
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;; minibuffer, so turn it off. A value of nil means don't automatically
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;; resize mini-windows.
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(setq resize-mini-windows-save resize-mini-windows)
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(setq resize-mini-windows nil)
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(shell-command command buffer)
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;; Save the original window, so that we can come back to it later.
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;; save-excursion doesn't seem to work for this.
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(setq window (selected-window))
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;; We need to select it so that we can apply special modes to it
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(select-window (display-buffer buffer 'not-this-window))
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(cmake-mode)
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(toggle-read-only t)
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;; Restore the original window
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(select-window window)
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(setq resize-mini-windows resize-mini-windows-save)
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)
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)
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)
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(defun cmake-help-list-commands ()
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"Prints out a list of the cmake commands."
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(interactive)
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(cmake-command-run "--help-command-list")
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)
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(defvar cmake-help-command-history nil "Topic read history.")
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(require 'thingatpt)
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(defun cmake-get-topic (type)
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"Gets the topic from the minibuffer input. The default is the word the cursor is on."
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(interactive)
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(let* ((default-entry (word-at-point))
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(input (read-string
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(format "CMake %s (default %s): " type default-entry) ; prompt
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nil ; initial input
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'cmake-help-command-history ; command history
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default-entry ; default-value
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)))
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(if (string= input "")
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(error "No argument given")
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input))
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)
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(defun cmake-help-command ()
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"Prints out the help message corresponding to the command the cursor is on."
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(interactive)
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(setq command (cmake-get-topic "command"))
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(cmake-command-run "--help-command" (downcase command))
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)
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; This file provides cmake-mode.
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(provide 'cmake-mode)
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;;; cmake-mode.el ends here
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