166 lines
5.3 KiB
EmacsLisp
166 lines
5.3 KiB
EmacsLisp
;; geiser-mit.el -- MIT/GNU Scheme's implementation of the geiser protocols
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the Modified BSD License. You should
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;; have received a copy of the license along with this program. If
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;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
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(require 'geiser-connection)
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(require 'geiser-syntax)
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(require 'geiser-custom)
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(require 'geiser-base)
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(require 'geiser-eval)
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(require 'geiser-edit)
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(require 'geiser-log)
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(require 'geiser)
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(require 'compile)
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(require 'info-look)
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(eval-when-compile (require 'cl))
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;;; Customization:
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(defgroup geiser-mit nil
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"Customization for Geiser's MIT/GNU Scheme flavour."
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:group 'geiser)
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(geiser-custom--defcustom geiser-mit-binary
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"mit-scheme"
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"Name to use to call the MIT/GNU Scheme executable when starting a REPL."
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:type '(choice string (repeat string))
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:group 'geiser-mit)
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(geiser-custom--defcustom geiser-mit-source-directory
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""
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"The path to the MIT/GNU Scheme sources' src/ directory."
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:type 'directory
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:group 'geiser-mit)
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;;; REPL support:
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(defun geiser-mit--binary ()
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(if (listp geiser-mit-binary)
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(car geiser-mit-binary)
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geiser-mit-binary))
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(defun geiser-mit--parameters ()
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"Return a list with all parameters needed to start MIT/GNU Scheme.
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This function uses `geiser-mit-init-file' if it exists."
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`("--load" ,(expand-file-name "mit/geiser/load.scm" geiser-scheme-dir))
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)
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(defconst geiser-mit--prompt-regexp "[0-9]+ ([^)]+) => ") ;; *not* ]=>, that confuses syntax-ppss
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(defconst geiser-mit--debugger-prompt-regexp "[0-9]+ error> ")
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;;; Evaluation support:
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(defun geiser-mit--geiser-procedure (proc &rest args)
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(case proc
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((eval compile)
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(let ((form (mapconcat 'identity (cdr args) " "))
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(module (cond ((string-equal "'()" (car args))
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"'()")
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((and (car args))
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(concat "'" (car args)))
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(t
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"#f"))))
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(format "(geiser:eval %s '%s)" module form)))
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((load-file compile-file)
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(format "(geiser:load-file %s)" (car args)))
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((no-values)
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"(geiser:no-values)")
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(t
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(let ((form (mapconcat 'identity args " ")))
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(format "(geiser:%s %s)" proc form)))))
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(defconst geiser-mit--module-re
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".*;; package: +\\(([^)]*)\\)")
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(defun geiser-mit--get-module (&optional module)
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(cond ((null module)
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(save-excursion
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(geiser-syntax--pop-to-top)
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(if (or (re-search-backward geiser-mit--module-re nil t)
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(re-search-forward geiser-mit--module-re nil t))
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(geiser-mit--get-module (match-string-no-properties 1))
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:f)))
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((listp module) module)
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((stringp module)
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(condition-case nil
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(car (geiser-syntax--read-from-string module))
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(error :f)))
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(t :f)))
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(defun geiser-mit--module-cmd (module fmt &optional def)
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(when module
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(let* ((module (geiser-mit--get-module module))
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(module (cond ((or (null module) (eq module :f)) def)
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(t (format "%s" module)))))
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(and module (format fmt module)))))
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(defun geiser-mit--enter-command (module)
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(geiser-mit--module-cmd module "(geiser:ge '%s)" "()"))
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(defun geiser-mit--exit-command () "(%exit 0)")
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(defun geiser-mit--symbol-begin (module)
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(if module
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(max (save-excursion (beginning-of-line) (point))
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(save-excursion (skip-syntax-backward "^(>") (1- (point))))
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(save-excursion (skip-syntax-backward "^'-()>") (point))))
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;;
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;; ;;; REPL startup
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(defconst geiser-mit-minimum-version "9.1.1")
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(defun geiser-mit--version (binary)
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(car (process-lines binary
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"--quiet"
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"--no-init-file"
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"--eval"
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"(begin (display (get-subsystem-version-string \"Release\"))
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(%exit 0))")))
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(defconst geiser-mit--path-rx "^In \\([^:\n ]+\\):\n")
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(defun geiser-mit--startup (remote)
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(let ((geiser-log-verbose-p t))
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(compilation-setup t)
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(when (and (stringp geiser-mit-source-directory)
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(not (string= geiser-mit-source-directory "")))
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(geiser-eval--send/wait (format "(geiser:set-mit-scheme-source-directory %S)" geiser-mit-source-directory)))))
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;;; Implementation definition:
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(define-geiser-implementation mit
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(binary geiser-mit--binary)
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(arglist geiser-mit--parameters)
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(version-command geiser-mit--version)
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(minimum-version geiser-mit-minimum-version)
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(repl-startup geiser-mit--startup)
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(prompt-regexp geiser-mit--prompt-regexp)
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(debugger-prompt-regexp geiser-mit--debugger-prompt-regexp)
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;; (enter-debugger geiser-mit--enter-debugger)
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(marshall-procedure geiser-mit--geiser-procedure)
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(find-module geiser-mit--get-module)
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(enter-command geiser-mit--enter-command)
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(exit-command geiser-mit--exit-command)
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;; (import-command geiser-mit--import-command)
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(find-symbol-begin geiser-mit--symbol-begin)
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;; (display-error geiser-mit--display-error)
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;; (external-help geiser-mit--manual-look-up)
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;; (check-buffer geiser-mit--guess)
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;; (keywords geiser-mit--keywords)
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;; (case-sensitive geiser-mit-case-sensitive-p)
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)
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(geiser-impl--add-to-alist 'regexp "\\.scm$" 'mit t)
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(geiser-impl--add-to-alist 'regexp "\\.pkg$" 'mit t)
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(provide 'geiser-mit)
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