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Mateus Pinto Rodrigues
2017-11-11 15:15:10 -02:00
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;; geiser-guile.el -- guile's implementation of the geiser protocols
;; Copyright (C) 2009-2017 Jose Antonio Ortega Ruiz
;; Copyright (C) 2017 Jan Nieuwenhuizen <janneke@gnu.org>
;; 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))
;;; Customization:
(defgroup geiser-guile nil
"Customization for Geiser's Guile flavour."
:group 'geiser)
(geiser-custom--defcustom geiser-guile-binary
(cond ((eq system-type 'windows-nt) "guile.exe")
((eq system-type 'darwin) "guile")
(t "guile"))
"Name to use to call the Guile executable when starting a REPL."
:type '(choice string (repeat string))
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-load-path nil
"A list of paths to be added to Guile's load path when it's started.
The paths are added to both %load-path and %load-compiled path,
and only if they are not already present. This variable is a
good candidate for an entry in your project's .dir-locals.el."
:type '(repeat file)
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-init-file "~/.guile-geiser"
"Initialization file with user code for the Guile REPL.
If all you want is to load ~/.guile, set
`geiser-guile-load-init-file-p' instead."
:type 'string
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-load-init-file-p nil
"Whether to load ~/.guile when starting Guile.
Note that, due to peculiarities in the way Guile loads its init
file, using `geiser-guile-init-file' is not equivalent to setting
this variable to t."
:type 'boolean
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-debug-show-bt-p nil
"Whether to autmatically show a full backtrace when entering the debugger.
If `nil', only the last frame is shown."
:type 'boolean
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-jump-on-debug-p nil
"Whether to autmatically jump to error when entering the debugger.
If `t', Geiser will use `next-error' to jump to the error's location."
:type 'boolean
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-show-debug-help-p t
"Whether to show brief help in the echo area when entering the debugger."
:type 'boolean
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-warning-level 'medium
"Verbosity of the warnings reported by Guile.
You can either choose one of the predefined warning sets, or
provide a list of symbols identifying the ones you want. Possible
choices are arity-mismatch, unbound-variable, unused-variable and
unused-toplevel. Unrecognised symbols are ignored.
The predefined levels are:
- Medium: arity-mismatch, unbound-variable, format
- High: arity-mismatch, unbound-variable, unused-variable, format
- None: no warnings
Changes to the value of this variable will automatically take
effect on new REPLs. For existing ones, use the command
\\[geiser-guile-update-warning-level]."
:type '(choice (const :tag "Medium (arity and unbound vars)" medium)
(const :tag "High (also unused vars)" high)
(const :tag "No warnings" none)
(repeat :tag "Custom" symbol))
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-extra-keywords nil
"Extra keywords highlighted in Guile scheme buffers."
:type '(repeat string)
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-case-sensitive-p t
"Non-nil means keyword highlighting is case-sensitive."
:type 'boolean
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-manual-lookup-other-window-p nil
"Non-nil means pop up the Info buffer in another window."
:type 'boolean
:group 'geiser-guile)
(geiser-custom--defcustom geiser-guile-manual-lookup-nodes
'("Guile" "guile-2.0")
"List of info nodes that, when present, are used for manual lookups"
:type '(repeat string)
:group 'geiser-guile)
;;; REPL support:
(defun geiser-guile--binary ()
(if (listp geiser-guile-binary)
(car geiser-guile-binary)
geiser-guile-binary))
(defun geiser-guile--parameters ()
"Return a list with all parameters needed to start Guile.
This function uses `geiser-guile-init-file' if it exists."
(let ((init-file (and (stringp geiser-guile-init-file)
(expand-file-name geiser-guile-init-file)))
(q-flags (and (not geiser-guile-load-init-file-p) '("-q"))))
`(,@(and (listp geiser-guile-binary) (cdr geiser-guile-binary))
,@q-flags "-L" ,(expand-file-name "guile/" geiser-scheme-dir)
,@(apply 'append (mapcar (lambda (p) (list "-L" p))
geiser-guile-load-path))
,@(and init-file (file-readable-p init-file) (list "-l" init-file)))))
;;(defconst geiser-guile--prompt-regexp "^[^() \n]+@([^)]*?)> ")
(defconst geiser-guile--prompt-regexp "[^@()]+@([^)]*?)> ")
(defconst geiser-guile--debugger-prompt-regexp
"[^@()]+@([^)]*?) \\[[0-9]+\\]> ")
;;; Evaluation support:
(defsubst geiser-guile--linearize-args (args)
(mapconcat 'identity args " "))
(defun geiser-guile--geiser-procedure (proc &rest args)
(case proc
((eval compile) (format ",geiser-eval %s %s%s"
(or (car args) "#f")
(geiser-guile--linearize-args (cdr args))
(if (cddr args) "" " ()")))
((load-file compile-file) (format ",geiser-load-file %s" (car args)))
((no-values) ",geiser-no-values")
(t (format "ge:%s (%s)" proc (geiser-guile--linearize-args args)))))
(defconst geiser-guile--module-re
"(define-module +\\(([^)]+)\\)")
(defconst geiser-guile--library-re
"(library +\\(([^)]+)\\)")
(defun geiser-guile--get-module (&optional module)
(cond ((null module)
(save-excursion
(geiser-syntax--pop-to-top)
(if (or (re-search-backward geiser-guile--module-re nil t)
(looking-at geiser-guile--library-re)
(re-search-forward geiser-guile--module-re nil t))
(geiser-guile--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-guile--module-cmd (module fmt &optional def)
(when module
(let* ((module (geiser-guile--get-module module))
(module (cond ((or (null module) (eq module :f)) def)
(t (format "%s" module)))))
(and module (format fmt module)))))
(defun geiser-guile--import-command (module)
(geiser-guile--module-cmd module ",use %s"))
(defun geiser-guile--enter-command (module)
(geiser-guile--module-cmd module ",m %s" "(guile-user)"))
(defun geiser-guile--exit-command () ",q")
(defun geiser-guile--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))))
;;; Error display
(defun geiser-guile--enter-debugger ()
(let ((bt-cmd (format ",geiser-newline\n,error-message\n,%s\n"
(if geiser-guile-debug-show-bt-p "bt" "fr"))))
(compilation-forget-errors)
(goto-char (point-max))
(geiser-repl--prepare-send)
(comint-send-string nil bt-cmd)
(when geiser-guile-show-debug-help-p
(message "Debug REPL. Enter ,q to quit, ,h for help."))
(when geiser-guile-jump-on-debug-p
(accept-process-output (get-buffer-process (current-buffer))
0.2 nil t)
(ignore-errors (next-error)))))
(defun geiser-guile--display-error (module key msg)
(when (stringp msg)
(save-excursion (insert msg))
(geiser-edit--buttonize-files))
(and (not key) (not (zerop (length msg))) msg))
;;; Trying to ascertain whether a buffer is Guile Scheme:
(defconst geiser-guile--guess-re
(format "\\(%s\\|#! *.+\\(/\\| \\)guile\\( *\\\\\\)?\\)"
geiser-guile--module-re))
(defun geiser-guile--guess ()
(save-excursion
(goto-char (point-min))
(re-search-forward geiser-guile--guess-re nil t)))
;;; Keywords and syntax
(defconst geiser-guile--builtin-keywords
'("call-with-input-file"
"call-with-input-string"
"call-with-output-file"
"call-with-output-string"
"call-with-prompt"
"call-with-trace"
"define-accessor"
"define-class"
"define-enumeration"
"define-inlinable"
"define-syntax-parameter"
"eval-when"
"lambda*"
"syntax-parameterize"
"use-modules"
"with-error-to-file"
"with-error-to-port"
"with-error-to-string"
"with-fluid*"
"with-fluids"
"with-fluids*"
"with-input-from-port"
"with-input-from-string"
"with-output-to-port"
"with-output-to-string"))
(defun geiser-guile--keywords ()
(append
(geiser-syntax--simple-keywords geiser-guile-extra-keywords)
(geiser-syntax--simple-keywords geiser-guile--builtin-keywords)
`((,(rx "(" (group "define-once") eow (* space) (? (group (+ word))))
(1 font-lock-keyword-face)
(2 font-lock-variable-name-face nil t))
("(\\(define-module\\) +(\\([^)]+\\))"
(1 font-lock-keyword-face)
(2 font-lock-type-face nil t)))))
(geiser-syntax--scheme-indent
(c-declare 0)
(c-lambda 2)
(call-with-input-string 1)
(call-with-output-string 0)
(call-with-prompt 1)
(call-with-trace 0)
(eval-when 1)
(lambda* 1)
(pmatch defun)
(sigaction 1)
(syntax-parameterize 1)
(with-error-to-file 1)
(with-error-to-port 1)
(with-error-to-string 0)
(with-fluid* 1)
(with-fluids 1)
(with-fluids* 1)
(with-input-from-string 1)
(with-method 1)
(with-mutex 1)
(with-output-to-string 0)
(with-throw-handler 1))
;;; Compilation shell regexps
(defconst geiser-guile--path-rx "^In \\([^:\n ]+\\):\n")
(defconst geiser-guile--rel-path-rx "^In +\\([^/\n :]+\\):\n")
(defvar geiser-guile--file-cache (make-hash-table :test 'equal))
(defun geiser-guile--resolve-file (file)
(when (and (stringp file)
(not (member file '("socket" "stdin" "unknown file"))))
(if (file-name-absolute-p file) file
(or (gethash file geiser-guile--file-cache)
(puthash file
(geiser-eval--send/result `(:eval (:ge find-file ,file)))
geiser-guile--file-cache)))))
(defun geiser-guile--resolve-file-x ()
(let ((f (geiser-guile--resolve-file (match-string-no-properties 1))))
(and (stringp f) (list f))))
;;; REPL startup
(defconst geiser-guile-minimum-version "2.0")
(defun geiser-guile--version (binary)
(car (process-lines binary "-c" "(display (version))")))
(defun geiser-guile-update-warning-level ()
"Update the warning level used by the REPL.
The new level is set using the value of `geiser-guile-warning-level'."
(interactive)
(let ((code `(:eval (:ge set-warnings ',geiser-guile-warning-level)
(geiser evaluation))))
(geiser-eval--send/result code)))
(defun connect-to-guile ()
"Start a Guile REPL connected to a remote process.
Start the external Guile process with the flag --listen to make
it spawn a server thread."
(interactive)
(geiser-connect 'guile))
(defun geiser-guile--set-geiser-load-path ()
(let* ((path (expand-file-name "guile/" geiser-scheme-dir))
(witness "geiser/emacs.scm")
(code `(begin (if (not (%search-load-path ,witness))
(set! %load-path (cons ,path %load-path)))
'done)))
(geiser-eval--send/wait code)))
(defun geiser-guile--startup (remote)
(set (make-local-variable 'compilation-error-regexp-alist)
`((,geiser-guile--path-rx geiser-guile--resolve-file-x)
("^ +\\([0-9]+\\):\\([0-9]+\\)" nil 1 2)))
(compilation-setup t)
(font-lock-add-keywords nil `((,geiser-guile--path-rx
1 compilation-error-face)))
(let ((geiser-log-verbose-p t))
(when remote (geiser-guile--set-geiser-load-path))
(geiser-eval--send/wait ",use (geiser emacs)\n'done")
(dolist (dir geiser-guile-load-path)
(let ((dir (expand-file-name dir)))
(geiser-eval--send/wait `(:eval (:ge add-to-load-path ,dir)))))
(geiser-guile-update-warning-level)))
;;; Manual lookup
(defun geiser-guile--info-spec (&optional nodes)
(let* ((nrx "^[ ]+-+ [^:]+:[ ]*")
(drx "\\b")
(res (when (Info-find-file "r5rs" t)
`(("(r5rs)Index" nil ,nrx ,drx)))))
(dolist (node (or nodes geiser-guile-manual-lookup-nodes) res)
(when (Info-find-file node t)
(mapc (lambda (idx)
(add-to-list 'res
(list (format "(%s)%s" node idx) nil nrx drx)))
'("Variable Index" "Procedure Index" "R5RS Index"))))))
(info-lookup-add-help :topic 'symbol :mode 'geiser-guile-mode
:ignore-case nil
:regexp "[^()`',\" \n]+"
:doc-spec (geiser-guile--info-spec))
(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) 'scheme-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 guile
(binary geiser-guile--binary)
(arglist geiser-guile--parameters)
(version-command geiser-guile--version)
(minimum-version geiser-guile-minimum-version)
(repl-startup geiser-guile--startup)
(prompt-regexp geiser-guile--prompt-regexp)
(debugger-prompt-regexp geiser-guile--debugger-prompt-regexp)
(enter-debugger geiser-guile--enter-debugger)
(marshall-procedure geiser-guile--geiser-procedure)
(find-module geiser-guile--get-module)
(enter-command geiser-guile--enter-command)
(exit-command geiser-guile--exit-command)
(import-command geiser-guile--import-command)
(find-symbol-begin geiser-guile--symbol-begin)
(display-error geiser-guile--display-error)
(external-help guile--manual-look-up)
(check-buffer geiser-guile--guess)
(keywords geiser-guile--keywords)
(case-sensitive geiser-guile-case-sensitive-p))
(geiser-impl--add-to-alist 'regexp "\\.scm$" 'guile t)
(provide 'geiser-guile)