54 lines
1.5 KiB
EmacsLisp
54 lines
1.5 KiB
EmacsLisp
;; A major mode for editing scripts written in Deelang
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(add-to-list 'auto-mode-alist '("\\.dee\\'" . dee-mode))
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(defcustom dee-indent-offset 4
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"Default indentation offset for Deelang."
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:group 'dee
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:type 'integer
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:safe 'integerp)
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(defvar dee-mode-map
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(let ((map (make-sparse-keymap)))
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map)
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"Keymap for Deelang files")
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(defvar dee-mode-syntax-table
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(let ((table (make-syntax-table)))
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(modify-syntax-entry ?# "<" table)
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(modify-syntax-entry ?\n ">" table)
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(modify-syntax-entry ?- "w" table)
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(modify-syntax-entry ?? "w" table)
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table)
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"Syntax table for Deelang files")
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(defvar dee-font-lock-id-re
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(rx (seq alpha (* (any alnum ?- ??)))))
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(defvar dee-font-lock-keywords
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`(,(rx symbol-start
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(or
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"if" "elif" "else" "loop" "until" "over" "in" "")
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symbol-end)
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(,(rx (group (regexp dee-font-lock-id-re)) (* space) "<-")
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(1 font-lock-variable-name-face))
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(,(rx (group (regexp dee-font-lock-id-re)) (* space) "(")
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(1 font-lock-function-name-face))
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(,(rx (group (regexp dee-font-lock-id-re)) (* space) "->")
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(1 font-lock-constant-face))))
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(defun dee-indent-line-function ()
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'noindent) ;TODO
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(define-derived-mode dee-mode prog-mode "Dee"
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"Major mode for editing scripts written in Deelang.
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\\{dee-mode-map}"
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(set (make-local-variable 'indent-line-function)
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#'dee-indent-line-function)
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(set (make-local-variable 'font-lock-defaults)
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`(,dee-font-lock-keywords
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nil nil nil nil)))
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(provide 'dee)
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