scel/el/sclang-mode.el
2021-08-09 12:05:52 -04:00

704 lines
23 KiB
EmacsLisp
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;; copyright 2003-2005 stefan kersten <steve@k-hornz.de>
;;
;; This program 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 2 of the
;; License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
;; USA
;;; Code:
(require 'cl-lib)
;; Make byte-compiler happy by declaring external functions and
;; variables.
(declare-function company-mode "ext:company")
(defvar company-backends)
(require 'font-lock)
(require 'sclang-util)
(require 'sclang-interp)
(require 'sclang-language)
(require 'sclang-dev)
(defun sclang-fill-syntax-table (table)
;; string
(modify-syntax-entry ?\" "\"" table)
(modify-syntax-entry ?\' "\"" table) ; no string syntax class for single quotes
;; expression prefix
(modify-syntax-entry ?~ "'" table)
;; escape
(modify-syntax-entry ?\\ "\\" table)
;; character quote
(modify-syntax-entry ?$ "/" table)
;; symbol
(modify-syntax-entry ?_ "_" table)
;; symbol/punctuation
(modify-syntax-entry ?! "." table)
(modify-syntax-entry ?% "." table)
(modify-syntax-entry ?& "." table)
(modify-syntax-entry ?* ". 23n" table)
(modify-syntax-entry ?+ "." table)
(modify-syntax-entry ?- "." table)
(modify-syntax-entry ?/ ". 124b" table)
(modify-syntax-entry ?< "." table)
(modify-syntax-entry ?= "." table)
(modify-syntax-entry ?> "." table)
(modify-syntax-entry ?? "." table)
(modify-syntax-entry ?@ "." table)
(modify-syntax-entry ?| "." table)
;; punctuation
(modify-syntax-entry ?: "." table)
(modify-syntax-entry ?\; "." table)
(modify-syntax-entry ?^ "." table)
;; parenthesis
(modify-syntax-entry ?\( "()" table)
(modify-syntax-entry ?\) ")(" table)
(modify-syntax-entry ?\[ "(]" table)
(modify-syntax-entry ?\] ")[" table)
(modify-syntax-entry ?\{ "(}" table)
(modify-syntax-entry ?\} "){" table)
;; comment end
(modify-syntax-entry ?\n "> b" table)
;; Give CR the same syntax as newline, for selective-display
(modify-syntax-entry ?\^m "> b" table)
;; return table
table)
(defun sclang-mode-make-menu (title)
(easy-menu-create-menu
title
'(
["Start Interpreter" sclang-start :included (not (sclang-library-initialized-p))]
["Restart Interpreter" sclang-start :included (sclang-library-initialized-p)]
["Recompile Class Library" sclang-recompile :included (sclang-library-initialized-p)]
["Stop Interpreter" sclang-stop :included (sclang-get-process)]
["Kill Interpreter" sclang-kill :included (sclang-get-process)]
"-"
["Show Post Buffer" sclang-show-post-buffer]
["Clear Post Buffer" sclang-clear-post-buffer]
"-"
["Switch To Workspace" sclang-switch-to-workspace]
"-"
["Evaluate Region" sclang-eval-region]
["Evaluate Line" sclang-eval-region-or-line]
["Evaluate Defun" sclang-eval-defun]
["Evaluate Expression ..." sclang-eval-expression]
["Evaluate Document" sclang-eval-document]
"-"
["Find Definitions ..." sclang-find-definitions]
["Find References ..." sclang-find-references]
["Pop Mark" sclang-pop-definition-mark]
["Show Method Arguments" sclang-show-method-args]
["Complete keyword" sclang-complete-symbol]
["Dump Interface" sclang-dump-interface]
["Dump Full Interface" sclang-dump-full-interface]
"-"
["Index Help Topics" sclang-index-help-topics]
["Find Help ..." sclang-find-help]
["Switch to Help Browser" sclang-goto-help-browser]
["Open Help GUI" sclang-open-help-gui]
"-"
["Run Main" sclang-main-run]
["Stop Main" sclang-main-stop]
["Show Server Panels" sclang-show-server-panel]
)))
(defun sclang-fill-mode-map (map)
;; process control
(define-key map "\C-c\C-l" 'sclang-recompile)
(define-key map "\C-c\C-o" 'sclang-start)
;; post buffer control
(define-key map "\C-c<" 'sclang-clear-post-buffer)
(define-key map "\C-c>" 'sclang-show-post-buffer)
;; workspace access
(define-key map "\C-c\C-w" 'sclang-switch-to-workspace)
;; code evaluation
(define-key map "\C-c\C-c" 'sclang-eval-region-or-line)
(define-key map "\C-c\C-d" 'sclang-eval-region)
(define-key map "\C-\M-x" 'sclang-eval-defun)
(define-key map "\C-c\C-e" 'sclang-eval-expression)
(define-key map "\C-c\C-f" 'sclang-eval-document)
;; language information
(define-key map "\C-c\C-n" 'sclang-complete-symbol)
(define-key map "\C-c:" 'sclang-find-definitions)
(define-key map "\C-c;" 'sclang-find-references)
(define-key map "\C-c}" 'sclang-pop-definition-mark)
(define-key map "\C-c\C-m" 'sclang-show-method-args)
(define-key map "\C-c{" 'sclang-dump-full-interface)
(define-key map "\C-c[" 'sclang-dump-interface)
;; documentation access
(define-key map "\C-c\C-h" 'sclang-find-help)
(define-key map "\C-\M-h" 'sclang-goto-help-browser)
(define-key map "\C-c\C-y" 'sclang-open-help-gui)
(define-key map "\C-ch" 'sclang-find-help-in-gui)
;; language control
(define-key map "\C-c\C-r" 'sclang-main-run)
(define-key map "\C-c\C-s" 'sclang-main-stop)
(define-key map "\C-c\C-p" 'sclang-show-server-panel)
(define-key map "\C-c\C-k" 'sclang-edit-dev-source)
;; electric characters
(define-key map "}" 'sclang-electric-brace)
(define-key map ")" 'sclang-electric-brace)
(define-key map "]" 'sclang-electric-brace)
(define-key map "/" 'sclang-electric-slash)
(define-key map "*" 'sclang-electric-star)
;; menu
(let ((title "SCLang"))
(define-key map [menu-bar sclang] (cons title (sclang-mode-make-menu title))))
;; return map
map)
;; =====================================================================
;; font-lock support
;; =====================================================================
(defconst sclang-font-lock-keyword-list
'(
"arg"
"classvar"
"const"
"super"
"this"
"thisFunction"
"thisFunctionDef"
"thisMethod"
"thisProcess"
"thisThread"
"var"
)
"*List of keywords to highlight in SCLang mode.")
(defconst sclang-font-lock-builtin-list
'(
"false"
"inf"
"nil"
"true"
)
"*List of builtins to highlight in SCLang mode.")
(defconst sclang-font-lock-method-list
'(
"ar"
"for"
"forBy"
"if"
"ir"
"kr"
"tr"
"loop"
"while"
)
"*List of methods to highlight in SCLang mode.")
(defconst sclang-font-lock-error-list
'(
"die"
"error"
"exit"
"halt"
"verboseHalt"
"warn"
)
"*List of methods signalling errors or warnings.")
(defvar sclang-font-lock-class-keywords nil)
(defvar sclang-font-lock-keywords-1 nil
"Subdued level highlighting for SCLang mode.")
(defvar sclang-font-lock-keywords-2 nil
"Medium level highlighting for SCLang mode.")
(defvar sclang-font-lock-keywords-3 nil
"Gaudy level highlighting for SCLang mode.")
(defvar sclang-font-lock-keywords nil
"Default expressions to highlight in SCLang mode.")
(defconst sclang-font-lock-defaults '((sclang-font-lock-keywords
sclang-font-lock-keywords-1
sclang-font-lock-keywords-2
sclang-font-lock-keywords-3
)
nil nil
nil
beginning-of-defun
))
(defun sclang-font-lock-syntactic-face (state)
(cond ((eq (nth 3 state) ?')
;; symbol
'font-lock-constant-face)
((nth 3 state)
;; string
'font-lock-string-face)
((nth 4 state)
;; comment
'font-lock-comment-face)))
(defun sclang-font-lock-class-keyword-matcher (limit)
(let ((regexp (concat "\\<" sclang-class-name-regexp "\\>"))
(case-fold-search nil)
(continue t)
(res nil))
(while continue
(setq res (re-search-forward regexp limit t))
(if (or (null res) (null sclang-class-list))
(setq continue nil)
(let ((thing (thing-at-point 'word)))
(if (null thing)
(setq res nil continue nil)
(when (cl-position (substring-no-properties thing) sclang-class-list :test 'equal)
(setq continue nil))))))
res))
(defun sclang-set-font-lock-keywords ()
(setq
;; level 1
sclang-font-lock-keywords-1
(list
;; keywords
(cons (regexp-opt sclang-font-lock-keyword-list 'words)
'font-lock-keyword-face)
;; builtins
(cons (regexp-opt sclang-font-lock-builtin-list 'words)
'font-lock-builtin-face)
;; pi is a special case
(cons "\\<\\([0-9]+\\(\\.\\)\\)pi\\>" 'font-lock-builtin-face)
;; constants
(cons "\\s/\\s\\?." 'font-lock-constant-face) ; characters
(cons (concat "\\\\\\(" sclang-symbol-regexp "\\)")
'font-lock-constant-face) ; symbols
)
;; level 2
sclang-font-lock-keywords-2
(append
sclang-font-lock-keywords-1
(list
;; variables
(cons (concat "\\s'\\(" sclang-identifier-regexp "\\)")
'font-lock-variable-name-face) ; environment variables
(cons (concat "\\<\\(" sclang-identifier-regexp "\\)\\>:") ; keyword arguments
'font-lock-variable-name-face)
;; method definitions
(cons sclang-method-definition-regexp
(list 1 'font-lock-function-name-face))
;; methods
(cons (regexp-opt sclang-font-lock-method-list 'words)
'font-lock-function-name-face)
;; errors
(cons (regexp-opt sclang-font-lock-error-list 'words)
'font-lock-warning-face)
))
;; level 3
sclang-font-lock-keywords-3
(append
sclang-font-lock-keywords-2
(list
;; classes
(cons 'sclang-font-lock-class-keyword-matcher 'font-lock-type-face)
;; (cons (concat "\\<" sclang-class-name-regexp "\\>") 'font-lock-type-face)
))
;; default level
sclang-font-lock-keywords sclang-font-lock-keywords-1
))
(defun sclang-update-font-lock ()
"Update font-lock information in all sclang-mode buffers."
;; too expensive
;; (dolist (buffer (buffer-list))
;; (with-current-buffer buffer
;; (and (eq major-mode 'sclang-mode)
;; (eq t (car font-lock-keywords))
;; (setq font-lock-keywords (cdr font-lock-keywords)))))
(if (eq major-mode 'sclang-mode)
(font-lock-fontify-buffer)))
;; =====================================================================
;; indentation
;; =====================================================================
(defcustom sclang-indent-level 4
"*Indentation offset for SCLang statements."
:group 'sclang-mode
:type 'integer)
(defun sclang-indent-line ()
"Indent current line as sclang code.
Return the amount the indentation changed by."
(let ((indent (calculate-sclang-indent))
beg shift-amt
(case-fold-search nil)
(pos (- (point-max) (point))))
(beginning-of-line)
(setq beg (point))
(skip-chars-forward " \t")
(setq shift-amt (- indent (current-column)))
(if (zerop shift-amt)
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos)))
(delete-region beg (point))
(indent-to indent)
;; if initial point was within line's indentation, position
;; after the indentation, else stay at same point in text.
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos))))
shift-amt))
(defun calculate-sclang-indent (&optional parse-start)
"Return appropriate indentation for current line as sclang code.
Returns the column to indent to."
(save-excursion
(beginning-of-line)
(let ((indent-point (point))
(case-fold-search nil)
state)
(if parse-start
(goto-char parse-start)
(beginning-of-defun))
(while (< (point) indent-point)
(setq state (parse-partial-sexp (point) indent-point 0)))
(let* ((containing-sexp (nth 1 state))
(inside-string-p (nth 3 state))
(inside-comment-p (nth 4 state)))
(cond (inside-string-p
;; inside string: no change
(current-indentation))
((integerp inside-comment-p)
;; inside comment
(let ((base (if containing-sexp
(save-excursion
(goto-char containing-sexp)
(+ (current-indentation) sclang-indent-level))
0))
(offset (* sclang-indent-level
(- inside-comment-p
(if (save-excursion
(back-to-indentation)
(looking-at "\\*/"))
1 0)))))
(+ base offset)))
((null containing-sexp)
;; top-level: no indentation
0)
(t
(back-to-indentation)
(let ((open-paren (and (looking-at "\\s)")
(matching-paren (char-after))))
(indent (current-indentation)))
(goto-char containing-sexp)
(if (or (not open-paren) (eq open-paren (char-after)))
(cond ((progn (beginning-of-line) (looking-at sclang-block-regexp)) 0)
(open-paren (current-indentation))
(t (+ (current-indentation) sclang-indent-level)))
;; paren mismatch: do nothing
indent))))))))
;; =====================================================================
;; electric character commands
;; =====================================================================
(defun sclang-electric-brace (arg)
(interactive "*P")
(self-insert-command (prefix-numeric-value arg))
(and (save-excursion
(beginning-of-line)
(looking-at "\\s *\\s)"))
(indent-according-to-mode)))
(defun sclang-electric-slash (arg)
(interactive "*P")
(let* ((char (char-before))
(indent-p (or (eq char ?/)
(eq char ?*))))
(self-insert-command (prefix-numeric-value arg))
(if indent-p (indent-according-to-mode))))
(defun sclang-electric-star (arg)
(interactive "*P")
(let ((indent-p (eq (char-before) ?/)))
(self-insert-command (prefix-numeric-value arg))
(if indent-p (indent-according-to-mode))))
;; =====================================================================
;; document interface
;; =====================================================================
(defvar sclang-document-id nil)
(defvar sclang-document-state nil)
(defvar sclang-document-envir nil)
(defvar sclang-document-counter 0)
(defvar sclang-document-list nil)
(defvar sclang-current-document nil
"Currently active document.")
(defvar sclang-document-idle-timer nil)
(defconst sclang-document-property-map
'((sclang-document-name . (prSetTitle (buffer-name)))
(sclang-document-path . (prSetFileName (buffer-file-name)))
(sclang-document-listener-p . (prSetIsListener (eq (current-buffer) (sclang-get-post-buffer))))
(sclang-document-editable-p . (prSetEditable (not buffer-read-only)))
(sclang-document-edited-p . (prSetEdited (buffer-modified-p)))))
(defmacro sclang-next-document-id ()
`(cl-incf sclang-document-counter))
(defun sclang-document-id (buffer)
(cdr (assq 'sclang-document-id (buffer-local-variables buffer))))
(defun sclang-document-p (buffer)
(integerp (sclang-document-id buffer)))
(defmacro with-sclang-document (buffer &rest body)
`(when (sclang-document-p buffer)
(with-current-buffer buffer
,@body)))
(defun sclang-get-document (id)
(cl-find-if (lambda (buffer) (eq id (sclang-document-id buffer)))
sclang-document-list))
(defun sclang-init-document ()
(set (make-local-variable 'sclang-document-id) (sclang-next-document-id))
(set (make-local-variable 'sclang-document-envir) nil)
(dolist (assoc sclang-document-property-map)
(set (make-local-variable (car assoc)) nil))
(cl-pushnew (current-buffer) sclang-document-list))
(defun sclang-document-update-property-1 (assoc &optional force)
(when (consp assoc)
(let* ((key (car assoc))
(prop (cdr assoc))
(prev-value (eval key))
(cur-value (eval (cadr prop))))
(when (or force (not (equal prev-value cur-value)))
(set key cur-value)
(sclang-perform-command-no-result
'documentSetProperty sclang-document-id
(car prop) cur-value)))))
(defun sclang-document-update-property (key &optional force)
(sclang-document-update-property-1 (assq key sclang-document-property-map) force))
(defun sclang-document-update-properties (&optional force)
(dolist (assoc sclang-document-property-map)
(sclang-document-update-property-1 assoc force)))
(defun sclang-make-document ()
(sclang-perform-command-no-result 'documentNew sclang-document-id)
(sclang-document-update-properties t))
(defun sclang-close-document (buffer)
(with-sclang-document
buffer
(setq sclang-document-list (delq buffer sclang-document-list))
(sclang-perform-command-no-result
'documentClosed sclang-document-id)))
(defun sclang-set-current-document (buffer &optional force)
(when (or force (not (eq buffer sclang-current-document)))
(setq sclang-current-document buffer)
(sclang-perform-command-no-result 'documentSetCurrent (sclang-document-id buffer))
t))
(defun sclang-document-library-startup-hook-function ()
(dolist (buffer sclang-document-list)
(with-current-buffer buffer
(sclang-make-document)))
(sclang-set-current-document (current-buffer) t))
(defun sclang-document-kill-buffer-hook-function ()
(sclang-close-document (current-buffer)))
(defun sclang-document-post-command-hook-function ()
(when (and (sclang-library-initialized-p)
(sclang-document-p (current-buffer)))
(sclang-document-update-properties))
(sclang-set-current-document (current-buffer)))
(defun sclang-document-change-major-mode-hook-function ()
(sclang-close-document (current-buffer)))
;; =====================================================================
;; command handlers
;; =====================================================================
(sclang-set-command-handler
'_documentOpen
(lambda (arg)
(cl-multiple-value-bind (file-name region-start region-length) arg
(let ((buffer (get-file-buffer file-name)))
(unless buffer
(setf buffer (find-file-noselect file-name)))
(when buffer
(unless (sclang-document-p buffer)
(with-current-buffer buffer (sclang-mode)))
(goto-char (max (point-min) (min (point-max) region-start)))
;; TODO: how to activate region in transient-mark-mode?
(sclang-document-id buffer))))))
(sclang-set-command-handler
'_documentNew
(lambda (arg)
(cl-multiple-value-bind (name str make-listener) arg
(let ((buffer (generate-new-buffer name)))
(with-current-buffer buffer
(insert str)
(set-buffer-modified-p nil)
(sclang-mode))
(sclang-document-id buffer)))))
(sclang-set-command-handler
'_documentClose
(lambda (arg)
(let ((doc (and (integerp arg) (sclang-get-document arg))))
(and doc (kill-buffer doc)))
nil))
(sclang-set-command-handler
'_documentRename
(lambda (arg)
(cl-multiple-value-bind (id name) arg
(when (stringp name)
(let ((doc (and (integerp id) (sclang-get-document id))))
(when doc
(with-current-buffer doc
(rename-buffer name t)
(sclang-document-update-property 'sclang-document-name))))))
nil))
(sclang-set-command-handler
'_documentSetEditable
(lambda (arg)
(cl-multiple-value-bind (id flag) arg
(let ((doc (and (integerp id) (sclang-get-document id))))
(when doc
(with-current-buffer doc
(setq buffer-read-only (not flag))
(sclang-document-update-property 'sclang-editable-p)))))
nil))
(sclang-set-command-handler
'_documentSwitchTo
(lambda (arg)
(let ((doc (and (integerp arg) (sclang-get-document arg))))
(and doc (switch-to-buffer doc)))
nil))
(sclang-set-command-handler
'_documentPutString
(lambda (arg)
(cl-multiple-value-bind (id str) arg
(let ((doc (and (integerp id) (sclang-get-document id))))
(when doc
(with-current-buffer doc
(insert str)
)
nil)))))
(sclang-set-command-handler
'_documentPopTo
(lambda (arg)
(let ((doc (and (integerp arg) (sclang-get-document arg))))
(and doc (display-buffer doc)))
nil))
;; =====================================================================
;; sclang-mode
;; =====================================================================
(defun sclang-mode-set-local-variables ()
(set (make-local-variable 'require-final-newline) nil)
;; indentation
(set (make-local-variable 'indent-line-function)
'sclang-indent-line)
(set (make-local-variable 'tab-width) 4)
(set (make-local-variable 'indent-tabs-mode) t)
;; comment formatting
(set (make-local-variable 'comment-start) "// ")
(set (make-local-variable 'comment-end) "")
(set (make-local-variable 'comment-column) 40)
(set (make-local-variable 'comment-start-skip) "/\\*+ *\\|//+ *")
;; "\\(^\\|\\s-\\);?// *")
(set (make-local-variable 'comment-multi-line) t)
;; parsing and movement
(set (make-local-variable 'parse-sexp-ignore-comments) t)
(set (make-local-variable 'beginning-of-defun-function)
'sclang-beginning-of-defun)
(set (make-local-variable 'end-of-defun-function)
'sclang-end-of-defun)
;; paragraph formatting
;; (set (make-local-variable 'paragraph-start) (concat "$\\|" page-delimiter))
;; mostly copied from c++-mode, seems to work
(set (make-local-variable 'paragraph-start)
"[ \t]*\\(//+\\|\\**\\)[ \t]*$\\|^ ")
(set (make-local-variable 'paragraph-separate) paragraph-start)
(set (make-local-variable 'paragraph-ignore-fill-prefix) t)
(set (make-local-variable 'adaptive-fill-mode) t)
(set (make-local-variable 'adaptive-fill-regexp)
"[ \t]*\\(//+\\|\\**\\)[ \t]*\\([ \t]*\\([-|#;>*]+[ \t]*\\|(?[0-9]+[.)][ \t]*\\)*\\)")
;; font lock
(set (make-local-variable 'font-lock-syntactic-face-function)
'sclang-font-lock-syntactic-face)
(set (make-local-variable 'font-lock-defaults)
sclang-font-lock-defaults)
;; ---
nil)
(defvar sclang-mode-map (sclang-fill-mode-map (make-sparse-keymap))
"Keymap used in SuperCollider mode.")
(defvar sclang-mode-syntax-table (sclang-fill-syntax-table (make-syntax-table))
"Syntax table used in SuperCollider mode.")
(defcustom sclang-mode-hook nil
"*Hook run when entering SCLang mode."
:group 'sclang-mode
:type 'hook)
;;;###autoload
(define-derived-mode sclang-mode prog-mode "SCLang"
"Major mode for editing SuperCollider language code.
\\{sclang-mode-map}"
:group 'sclang
:syntax-table sclang-mode-syntax-table
(sclang-mode-set-local-variables)
(sclang-set-font-lock-keywords)
(sclang-init-document)
(sclang-make-document)
;; Setup completion
(add-hook 'completion-at-point-functions
#'sclang-completion-at-point nil 'local)
(when (fboundp 'company-mode)
(add-to-list 'company-backends 'company-capf)))
;; =====================================================================
;; module initialization
;; =====================================================================
;;;###autoload
(add-to-list 'auto-mode-alist '("\\.scd?\\'" . sclang-mode))
(add-to-list 'interpreter-mode-alist '("sclang" . sclang-mode))
(add-hook 'sclang-library-startup-hook 'sclang-document-library-startup-hook-function)
(add-hook 'kill-buffer-hook 'sclang-document-kill-buffer-hook-function)
(add-hook 'post-command-hook 'sclang-document-post-command-hook-function)
(add-hook 'change-major-mode-hook 'sclang-document-change-major-mode-hook-function)
(provide 'sclang-mode)
;;; sclang-mode ends here