[nongnu] elpa/geiser-gauche 60c95ca 002/119: Add initial version of geiser.scm and geiser-gauche.el

[Philip Kaludercic]

branch: elpa/geiser-gauche
commit 60c95ca8d8669fa415b90013f42746269736d734
Author: András Simonyi <andras.simonyi@gmail.com>
Commit: András Simonyi <andras.simonyi@gmail.com>

    Add initial version of geiser.scm and geiser-gauche.el
---
 geiser-gauche.el | 165 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 geiser.scm       |  70 +++++++++++++++++++++++
 2 files changed, 235 insertions(+)

diff --git a/geiser-gauche.el b/geiser-gauche.el
new file mode 100644
index 0000000..ffbbc0b
--- /dev/null
+++ b/geiser-gauche.el
@@ -0,0 +1,165 @@
+;;; geiser-gauche.el -- Chez Scheme's implementation of the geiser protocols
+
+;; 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>.
+
+
+;;; Code:
+
+(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-lib))
+
+
+;;; Customization:
+
+(defgroup geiser-gauche nil
+  "Customization for Geiser's Chez Scheme flavour."
+  :group 'geiser)
+
+(geiser-custom--defcustom geiser-gauche-binary
+    "scheme"
+  "Name to use to call the Chez Scheme executable when starting a REPL."
+  :type '(choice string (repeat string))
+  :group 'geiser-gauche)
+
+(geiser-custom--defcustom geiser-gauche-init-file "~/.chez-geiser"
+  "Initialization file with user code for the Chez REPL."
+  :type 'string
+  :group 'geiser-gauche)
+
+(geiser-custom--defcustom geiser-gauche-extra-command-line-parameters '()
+  "Additional parameters to supply to the Chez binary."
+  :type '(repeat string)
+  :group 'geiser-gauche)
+
+
+;;; REPL support:
+
+(defun geiser-gauche--binary ()
+  (if (listp geiser-gauche-binary)
+      (car geiser-gauche-binary)
+    geiser-gauche-binary))
+
+(defun geiser-gauche--parameters ()
+  "Return a list with all parameters needed to start Chez Scheme.
+This function uses `geiser-gauche-init-file' if it exists."
+  (let ((init-file (and (stringp geiser-gauche-init-file)
+                        (expand-file-name geiser-gauche-init-file))))
+    `(,@(and init-file (file-readable-p init-file) (list init-file))
+      ,(expand-file-name "chez/geiser/geiser.ss" geiser-scheme-dir)
+      ,@geiser-gauche-extra-command-line-parameters)))
+
+(defconst geiser-gauche--prompt-regexp "> ")
+
+
+;;; Evaluation support:
+
+(defun geiser-gauche--geiser-procedure (proc &rest args)
+  (cl-case proc
+    ((eval compile)
+     (let ((form (mapconcat 'identity (cdr args) " "))
+           (module (cond ((string-equal "'()" (car args))
+                          "'()")
+                         ((and (car args))
+                          (concat "'" (car args)))
+                         (t
+                          "#f"))))
+       (format "(geiser:eval %s '%s)" module 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)))))
+
+(defun geiser-gauche--get-module (&optional module)
+  (cond ((null module)
+         :f)
+        ((listp module) module)
+        ((stringp module)
+         (condition-case nil
+             (car (geiser-syntax--read-from-string module))
+           (error :f)))
+        (t :f)))
+
+(defun geiser-gauche--symbol-begin (module)
+  (if module
+      (max (save-excursion (beginning-of-line) (point))
+           (save-excursion (skip-syntax-backward "^(>") (1- (point))))
+    (save-excursion (skip-syntax-backward "^'-()>") (point))))
+
+(defun geiser-gauche--import-command (module)
+  (format "(import %s)" module))
+
+(defun geiser-gauche--exit-command () "(exit 0)")
+;; 
+;; ;;; REPL startup
+
+(defconst geiser-gauche-minimum-version "9.4")
+
+(defun geiser-gauche--version (binary)
+  (car (process-lines binary "--version")))
+
+(defun geiser-gauche--startup (remote)
+  (let ((geiser-log-verbose-p t))
+    (compilation-setup t)
+    (geiser-eval--send/wait "(begin (import (geiser)) (write `((result ) 
(output . \"\"))) (newline))")))
+
+(defun geiser-gauche--display-error (module key msg)
+  (and key (message msg) nil))
+
+
+
+;;;  Manual look up
+
+(defun guile--manual-look-up (id mod)
+  (let ((info-lookup-other-window-flag
+         geiser-guile-manual-lookup-other-window-p))
+    (info-lookup-symbol (symbol-name id) 'geiser-guile-mode))
+  (when geiser-guile-manual-lookup-other-window-p
+    (switch-to-buffer-other-window "*info*"))
+  (search-forward (format "%s" id) nil t))
+
+
+;;; Implementation definition:
+
+(define-geiser-implementation chez
+  (binary geiser-gauche--binary)
+  (arglist geiser-gauche--parameters)
+  (version-command geiser-gauche--version)
+  (minimum-version geiser-gauche-minimum-version)
+  (repl-startup geiser-gauche--startup)
+  (prompt-regexp geiser-gauche--prompt-regexp)
+  (debugger-prompt-regexp nil) ;; geiser-gauche--debugger-prompt-regexp
+  ;; (enter-debugger geiser-gauche--enter-debugger)
+  (marshall-procedure geiser-gauche--geiser-procedure)
+  (find-module geiser-gauche--get-module)
+  ;; (enter-command geiser-gauche--enter-command)
+  (exit-command geiser-gauche--exit-command)
+  (import-command geiser-gauche--import-command)
+  (find-symbol-begin geiser-gauche--symbol-begin)
+  (display-error geiser-gauche--display-error)
+  ;; (external-help geiser-gauche--manual-look-up)
+  ;; (check-buffer geiser-gauche--guess)
+  ;; (keywords geiser-gauche--keywords)
+  ;; (case-sensitive geiser-gauche-case-sensitive-p)
+  )
+
+(geiser-impl--add-to-alist 'regexp "\\.ss$" 'chez t)
+(geiser-impl--add-to-alist 'regexp "\\.def$" 'chez t)
+
+(provide 'geiser-gauche)
diff --git a/geiser.scm b/geiser.scm
new file mode 100644
index 0000000..3fa6757
--- /dev/null
+++ b/geiser.scm
@@ -0,0 +1,70 @@
+(define-module geiser
+  (use srfi-13)
+  (use gauche.interactive)
+  (export
+   geiser:macroexpand
+   geiser:eval
+   geiser:newline
+   geiser:autodoc
+   geiser:load-file
+   geiser:no-values
+   geiser:completions
+   geiser:module-completions
+   ;; Missing functions:
+   ;; geiser-start-server
+   ;; geiser-object-signature
+   ;; geiser-symbol-location
+   ;; geiser-symbol-documentation
+   ;; geiser-find-file
+   ;; geiser-add-to-load-path
+   ;; geiser-compile-file
+   ;; geiser-compile
+   ;; geiser-module-path
+   ;; geiser-module-location
+   ))
+
+(select-module geiser)
+
+(define (geiser:macroexpand form . rest)
+  (with-output-to-string
+    (cut pprint (macroexpand form))))
+
+(define (geiser:eval module-name form . rest)
+  (let ((module (or (find-module module-name)
+                   (current-module))))
+    (with-output-to-string
+      (cut eval form module))))
+
+(define (geiser:autodoc ids . rest)
+  (map (cut ~ <> 'info)
+       ids))
+
+(define (geiser:load-file filename)
+  (load filename))
+
+(define (geiser:newline)
+  (newline))
+
+(define (geiser:no-values)
+  (values))
+
+;;; Completions
+
+(define (geiser:completions prefix)
+  (delete-duplicates
+   (remove
+    (^x (or (string=? x "")
+           (string-prefix? "(" x)
+           (not (global-variable-bound? (current-module)
+                                        (string->symbol x)))))
+    (string-split
+     (with-output-to-string
+       (cut apropos (string->regexp (string-append "^" prefix))))
+     #/\s+/))))
+
+(define (geiser:module-completions prefix)
+  (filter
+   (cut string-prefix? prefix <>)
+   (map (^x (symbol->string (module-name x)))
+       (all-modules))))
+