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;; geiser-chicken.el -- chicken's implementation of the geiser protocols
;; Copyright (C) 2014, 2015 Daniel Leslie
;; Based on geiser-guile.el by Jose Antonio Ortego Ruize
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the Modified BSD License. You should
;; have received a copy of the license along with this program. If
;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
;; Start date: Sun Mar 08, 2009 23:03
(require 'geiser-connection)
(require 'geiser-syntax)
(require 'geiser-custom)
(require 'geiser-base)
(require 'geiser-eval)
(require 'geiser-edit)
(require 'geiser-log)
(require 'geiser)
(require 'compile)
(require 'info-look)
(eval-when-compile (require 'cl))
(defconst geiser-chicken-builtin-keywords
'("assume"
"compiler-typecase"
"cond-expand"
"condition-case"
"declare"
"define-constant"
"define-inline"
"define-interface"
"define-record"
"define-specialization"
"define-type"
"dotimes"
"ecase"
"fluid-let"
"foreign-lambda"
"foreign-lambda*"
"foreign-primitive"
"foreign-safe-lambda"
"foreign-safe-lambda*"
"functor"
"handle-exceptions"
"let-location"
"let-optionals"
"let-optionals*"
"letrec-values"
"module"
"regex-case"
"select"
"use"
"with-input-from-pipe"))
;;; Customization:
(defgroup geiser-chicken nil
"Customization for Geiser's Chicken flavour."
:group 'geiser)
(geiser-custom--defcustom geiser-chicken-prefix-delimiters
'("^:" "^#")
"Regex to match symbol prefix delimiters."
:type '(repeat string)
:group 'geiser-chicken)
(geiser-custom--defcustom geiser-chicken-binary
(cond ((eq system-type 'windows-nt) '("csi.exe" "-:c"))
((eq system-type 'darwin) "csi")
(t "csi"))
"Name to use to call the Chicken executable when starting a REPL."
:type '(choice string (repeat string))
:group 'geiser-chicken)
(geiser-custom--defcustom geiser-chicken-load-path nil
"A list of paths to be added to Chicken's load path when it's
started."
:type '(repeat file)
:group 'geiser-chicken)
(geiser-custom--defcustom geiser-chicken-compile-geiser-p t
"Non-nil means that the Geiser runtime will be compiled on load."
:type 'boolean
:group 'geiser-chicken)
(geiser-custom--defcustom geiser-chicken-init-file "~/.chicken-geiser"
"Initialization file with user code for the Chicken REPL.
If all you want is to load ~/.csirc, set
`geiser-chicken-load-init-file-p' instead."
:type 'string
:group 'geiser-chicken)
(geiser-custom--defcustom geiser-chicken-load-init-file-p nil
"Whether to load ~/.chicken when starting Chicken.
Note that, due to peculiarities in the way Chicken loads its init
file, using `geiser-chicken-init-file' is not equivalent to setting
this variable to t."
:type 'boolean
:group 'geiser-chicken)
(geiser-custom--defcustom geiser-chicken-extra-keywords nil
"Extra keywords highlighted in Chicken scheme buffers."
:type '(repeat string)
:group 'geiser-chicken)
(geiser-custom--defcustom geiser-chicken-case-sensitive-p t
"Non-nil means keyword highlighting is case-sensitive."
:type 'boolean
:group 'geiser-chicken)
;;; REPL support:
(defun geiser-chicken--binary ()
(if (listp geiser-chicken-binary)
(car geiser-chicken-binary)
geiser-chicken-binary))
(defun geiser-chicken--parameters ()
"Return a list with all parameters needed to start Chicken.
This function uses `geiser-chicken-init-file' if it exists."
(let ((init-file (and (stringp geiser-chicken-init-file)
(expand-file-name geiser-chicken-init-file)))
(n-flags (and (not geiser-chicken-load-init-file-p) '("-n"))))
`(,@(and (listp geiser-chicken-binary) (cdr geiser-chicken-binary))
,@n-flags "-include-path" ,(expand-file-name "chicken/" geiser-scheme-dir)
,@(apply 'append (mapcar (lambda (p) (list "-include-path" p))
geiser-chicken-load-path))
,@(and init-file (file-readable-p init-file) (list init-file)))))
(defconst geiser-chicken--prompt-regexp "#[^;]*;[^:0-9]*:?[0-9]+> ")
;;; Evaluation support:
(defun geiser-chicken--geiser-procedure (proc &rest args)
(case proc
((eval compile)
(let ((form (mapconcat 'identity (cdr args) " ")))
(format "(geiser-eval %s '%s)" (or (car args) "#f") form)))
((load-file compile-file)
(format "(geiser-load-file %s)" (car args)))
((no-values)
"(geiser-no-values)")
(t
(let ((form (mapconcat 'identity args " ")))
(format "(geiser-%s %s)" proc form)))))
(defconst geiser-chicken--module-re
"( *module +\\(([^)]+)\\|[^ ]+\\)\\|( *define-library +\\(([^)]+)\\|[^ ]+\\)")
(defun geiser-chicken--get-module (&optional module)
(cond ((null module)
(save-excursion
(geiser-syntax--pop-to-top)
(if (or (re-search-backward geiser-chicken--module-re nil t)
(looking-at geiser-chicken--module-re)
(re-search-forward geiser-chicken--module-re nil t))
(geiser-chicken--get-module (match-string-no-properties 1))
:f)))
((listp module) module)
((stringp module)
(condition-case nil
(car (geiser-syntax--read-from-string module))
(error :f)))
(t :f)))
(defun geiser-chicken--module-cmd (module fmt &optional def)
(when module
(let* ((module (geiser-chicken--get-module module))
(module (cond ((or (null module) (eq module :f)) def)
(t (format "%s" module)))))
(and module (format fmt module)))))
(defun geiser-chicken--import-command (module)
(geiser-chicken--module-cmd module "(use %s)"))
(defun geiser-chicken--enter-command (module)
(geiser-chicken--module-cmd module ",m %s" module))
(defun geiser-chicken--exit-command () ",q")
(defun geiser-chicken--symbol-begin (module)
(let ((distance-to-beginning-of-line (- (point) (line-beginning-position))))
(apply
'max
(append
(list (save-excursion (skip-syntax-backward "^'(>" distance-to-beginning-of-line)
(point)))
(mapcar
(lambda (match-string)
(save-excursion (skip-chars-backward match-string distance-to-beginning-of-line)
(point)))
geiser-chicken-prefix-delimiters)))))
;;; Error display
(defun geiser-chicken--display-error (module key msg)
(newline)
(when (stringp msg)
(save-excursion (insert msg))
(geiser-edit--buttonize-files))
(and (not key) msg (not (zerop (length msg)))))
;;; Trying to ascertain whether a buffer is Chicken Scheme:
(defconst geiser-chicken--guess-re
(regexp-opt (append '("csi" "chicken") geiser-chicken-builtin-keywords)))
(defun geiser-chicken--guess ()
(save-excursion
(goto-char (point-min))
(re-search-forward geiser-chicken--guess-re nil t)))
(defun geiser-chicken--external-help (id module)
"Loads chicken doc into a buffer"
(browse-url (format "http://api.call-cc.org/cdoc?q=%s&query-name=Look+up" id)))
;;; Keywords and syntax
(defun geiser-chicken--keywords ()
(append
(geiser-syntax--simple-keywords geiser-chicken-extra-keywords)
(geiser-syntax--simple-keywords geiser-chicken-builtin-keywords)))
(geiser-syntax--scheme-indent
(assume 1)
(compiler-typecase 1)
(cond-expand 0)
(condition-case 1)
(cut 1)
(cute 1)
(declare 0)
(dotimes 1)
(ecase 1)
(fluid-let 1)
(foreign-lambda 2)
(foreign-lambda* 2)
(foreign-primitive 2)
(foreign-safe-lambda 2)
(foreign-safe-lambda* 2)
(functor 3)
(handle-exceptions 2)
(import 0)
(let-location 1)
(let-optionals 2)
(let-optionals* 2)
(letrec-values 1)
(module 2)
(regex-case 1)
(select 1)
(set! 1)
(use 0)
(with-input-from-pipe 1)
(with-output-to-pipe 1))
;;; REPL startup
(defconst geiser-chicken-minimum-version "4.8.0.0")
(defun geiser-chicken--version (binary)
(shell-command-to-string (format "%s -e \"(display (chicken-version))\""
binary)))
(defun connect-to-chicken ()
"Start a Chicken REPL connected to a remote process."
(interactive)
(geiser-connect 'chicken))
(defun geiser-chicken--compile-or-load (force-load)
(let ((target
(expand-file-name "chicken/geiser/emacs.so" geiser-scheme-dir))
(source
(expand-file-name "chicken/geiser/emacs.scm" geiser-scheme-dir))
(force-load (or force-load (eq system-type 'windows-nt)))
(suppression-prefix
"(define geiser-stdout (current-output-port))(current-output-port (make-output-port (lambda a #f) (lambda a #f)))")
(suppression-postfix
"(current-output-port geiser-stdout)"))
(let ((load-sequence
(cond
(force-load
(format "(load \"%s\")\n(import geiser)\n" source))
((file-exists-p target)
(format "%s(load \"%s\")(import geiser)%s\n"
suppression-prefix target suppression-postfix))
(t
(format "%s(use utils)(compile-file \"%s\" options: '(\"-O3\" \"-s\") output-file: \"%s\" load: #t)(import geiser)%s\n"
suppression-prefix source target suppression-postfix)))))
(geiser-eval--send/wait load-sequence))))
(defun geiser-chicken--startup (remote)
(compilation-setup t)
(geiser-chicken--compile-or-load (not geiser-chicken-compile-geiser-p)))
;;; Implementation definition:
(define-geiser-implementation chicken
(unsupported-procedures '(callers callees generic-methods))
(binary geiser-chicken--binary)
(arglist geiser-chicken--parameters)
(version-command geiser-chicken--version)
(minimum-version geiser-chicken-minimum-version)
(repl-startup geiser-chicken--startup)
(prompt-regexp geiser-chicken--prompt-regexp)
(debugger-prompt-regexp nil)
(enter-debugger nil)
(marshall-procedure geiser-chicken--geiser-procedure)
(find-module geiser-chicken--get-module)
(enter-command geiser-chicken--enter-command)
(exit-command geiser-chicken--exit-command)
(import-command geiser-chicken--import-command)
(find-symbol-begin geiser-chicken--symbol-begin)
(display-error geiser-chicken--display-error)
(external-help geiser-chicken--external-help)
(check-buffer geiser-chicken--guess)
(keywords geiser-chicken--keywords)
(case-sensitive geiser-chicken-case-sensitive-p))
(geiser-impl--add-to-alist 'regexp "\\.scm$" 'chicken t)
(geiser-impl--add-to-alist 'regexp "\\.release-info$" 'chicken t)
(geiser-impl--add-to-alist 'regexp "\\.meta$" 'chicken t)
(geiser-impl--add-to-alist 'regexp "\\.setup$" 'chicken t)
(provide 'geiser-chicken)
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