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- ;;;
- ;;; Common Lisp initializations
- ;;; Author: Chris McConnell, ccm@cs.cmu.edu
- ;;;
- #+allegro-v4.0 (setq excl:*cltl1-in-package-compatibility-p* t)
- (in-package "ILISP" :use '("LISP"))
-
- ;;;
- (defvar *ilisp-old-result* nil "Used for save/restore of top level values.")
-
- ;;;
- (defmacro ilisp-handler-case (expression &rest handlers)
- "Evaluate EXPRESSION using HANDLERS to handle errors."
- handlers
- (if (macro-function 'handler-case)
- `(handler-case ,expression ,@handlers)
- #+allegro `(excl::handler-case ,expression ,@handlers)
- #+lucid `(lucid::handler-case ,expression ,@handlers)
- #-(or allegro lucid) expression))
-
- ;;;
- (defun ilisp-readtable-case (readtable)
- (if (fboundp 'readtable-case)
- (funcall 'readtable-case readtable)
- #+allegro (case excl:*current-case-mode*
- (:case-insensitive-upper :upcase)
- (:case-insensitive-lower :downcase)
- (otherwise :preserve))
- #-allegro :upcase))
-
- ;;;
- (defmacro ilisp-errors (form)
- "Handle errors when evaluating FORM."
- `(let ((*standard-output* *terminal-io*)
- (*error-output* *terminal-io*))
- (princ " ") ;Make sure we have output
- (ilisp-handler-case
- ,form
- (error (error)
- (with-output-to-string (string)
- (format string "ILISP: ~A" error))))))
-
- ;;;
- (defun ilisp-save ()
- "Save the current state of the result history."
- (declare (special / // /// + ++ +++))
- (unless *ilisp-old-result*
- (setq *ilisp-old-result* (list /// // +++ ++ + /))))
-
- ;;;
- (defun ilisp-restore ()
- "Restore the old result history."
- (declare (special / // /// + ++ +++ * ** -))
- (setq // (pop *ilisp-old-result*)
- ** (first //)
- / (pop *ilisp-old-result*)
- * (first /)
- ++ (pop *ilisp-old-result*)
- + (pop *ilisp-old-result*)
- - (pop *ilisp-old-result*))
- (values-list (pop *ilisp-old-result*)))
-
- ;;;
- (defun ilisp-symbol-name (symbol-name)
- "Return SYMBOL-NAME with the appropriate case as a symbol."
- (case (ilisp-readtable-case *readtable*)
- (:upcase (string-upcase symbol-name))
- (:downcase (string-downcase symbol-name))
- (:preserve symbol-name)))
-
- ;;;
- (defun ilisp-find-package (package-name)
- "Return package PACKAGE-NAME or the current package."
- (if (string-equal package-name "nil")
- *package*
- (or (find-package (ilisp-symbol-name package-name))
- (error "Package ~A not found" package-name))))
-
- ;;;
- (defun ilisp-find-symbol (symbol-name package-name)
- "Return the symbol associated with SYMBOL-NAME in PACKAGE-NAME trying to
- handle case issues intelligently."
- (find-symbol (ilisp-symbol-name symbol-name)
- (ilisp-find-package package-name)))
-
- ;;;
- (defun ilisp-eval (form package filename)
- "Evaluate FORM in PACKAGE recording FILENAME as the source file."
- (princ " ")
- (let* ((*package* (ilisp-find-package package))
- #+allegro (excl::*source-pathname* filename)
- #+allegro (excl::*redefinition-warnings* nil)
- #+lucid (lucid::*source-pathname*
- (if (probe-file filename)
- (truename filename)
- (merge-pathnames filename)))
- #+lucid (lucid::*redefinition-action* nil)
- )
- filename
- (eval (read-from-string form))))
-
- ;;;
- (defun ilisp-compile (form package filename)
- "Compile FORM in PACKAGE recording FILENAME as the source file."
- (princ " ")
- ;; This makes sure that function forms are compiled
- #-lucid
- (ilisp-eval
- (format nil "(funcall (compile nil '(lisp:lambda () ~A)))"
- form)
- package
- filename)
- #+lucid
- (labels ((compiler (form env)
- (if (and (consp form)
- (eq (first form) 'function)
- (consp (second form)))
- #-LCL3.0
- (evalhook `(compile nil ,form) nil nil env)
- #+LCL3.0
- ;; If we have just compiled a named-lambda, and the
- ;; name didn't make it in to the procedure object,
- ;; then stuff the appropriate symbol in to the
- ;; procedure object.
- (let* ((proc (evalhook `(compile nil ,form) nil nil env))
- (old-name (and proc (sys:procedure-ref proc 1)))
- (lambda (second form))
- (name (and (eq (first lambda) 'lucid::named-lambda)
- (second lambda))))
- (when (or (null old-name)
- (and (listp old-name) (eq :internal (car old-name))))
- (setf (sys:procedure-ref proc 1) name))
- proc)
- (evalhook form #'compiler nil env))))
- (let ((*evalhook* #'compiler))
- (ilisp-eval form package filename))))
-
- ;;;
- (defun ilisp-describe (sexp package)
- "Describe SEXP in PACKAGE."
- (ilisp-errors
- (let ((*package* (ilisp-find-package package)))
- (describe (eval (read-from-string sexp))))))
-
- ;;;
- (defun ilisp-inspect (sexp package)
- "Inspect SEXP in PACKAGE."
- (ilisp-errors
- (let ((*package* (ilisp-find-package package)))
- (inspect (eval (read-from-string sexp))))))
-
- ;;;
- (defun ilisp-arglist (symbol package)
- "Return the argument list of SYMBOL from PACKAGE."
- (ilisp-errors
- (let ((real-symbol (ilisp-find-symbol symbol package))
- (*print-length* nil)
- (*print-level* nil)
- (*package* (ilisp-find-package package)))
- (if (and real-symbol (fboundp real-symbol))
- (pprint (let* ((function (symbol-function real-symbol))
- (generic-p
- (find-symbol "GENERIC-FUNCTION-P"
- (or (find-package "PCL")
- *package*))))
- (if (and (fboundp generic-p) (funcall generic-p function))
- (funcall
- (find-symbol "GENERIC-FUNCTION-PRETTY-ARGLIST"
- (or (find-package "PCL") *package*))
- function)
- #+allegro (excl::arglist real-symbol)
- #+lucid (lucid::arglist real-symbol)
- #+(or ibcl kcl) (help real-symbol)
- #-(or allegro lucid kcl ibcl)
- (documentation real-symbol 'function))))
- (format t "~A is not a function" symbol)))))
-
- ;;;
- (defun ilisp-documentation (symbol package type)
- "Return the TYPE documentation for SYMBOL in PACKAGE. If TYPE is
- \(qualifiers* (class ...)), the appropriate method will be found."
- (ilisp-errors
- (let* ((real-symbol (ilisp-find-symbol symbol package))
- (type (if (and (not (zerop (length type)))
- (eq (elt type 0) #\())
- (let ((*package* (ilisp-find-package package)))
- (read-from-string type))
- (ilisp-find-symbol type package))))
- (when (listp type)
- (setq real-symbol
- (funcall
- (find-symbol "FIND-METHOD" (or (find-package "CLOS")
- (find-package "PCL")
- *package*))
- (symbol-function real-symbol)
- (reverse
- (let ((quals nil))
- (dolist (entry type quals)
- (if (listp entry)
- (return quals)
- (setq quals (cons entry quals))))))
- (reverse
- (let ((types nil))
- (dolist (class (first (last type)) types)
- (setq types
- (cons (funcall
- (find-symbol "FIND-CLASS"
- (or (find-package "CLOS")
- (find-package "PCL")
- *package*))
- class) types))))))))
- (if real-symbol
- (if (symbolp real-symbol)
- (documentation real-symbol type)
- ;; Prevent compiler complaints
- (eval `(documentation ,real-symbol)))
- (format nil "~A has no ~A documentation" symbol type)))))
-
- ;;;
- (defun ilisp-macroexpand (expression package)
- "Macroexpand EXPRESSION as long as the top level function is still a
- macro."
- (ilisp-errors
- (let ((*print-length* nil)
- (*print-level* nil)
- (*package* (ilisp-find-package package)))
- (pprint (#-allegro macroexpand #+allegro excl::walk
- (read-from-string expression))))))
-
- ;;;
- (defun ilisp-macroexpand-1 (expression package)
- "Macroexpand EXPRESSION once."
- (ilisp-errors
- (let ((*print-length* nil)
- (*print-level* nil)
- (*package* (ilisp-find-package package)))
- (pprint (macroexpand-1 (read-from-string expression))))))
-
- ;;;
- (defun ilisp-trace (symbol package)
- "Trace SYMBOL in PACKAGE."
- (ilisp-errors
- (let ((real-symbol (ilisp-find-symbol symbol package)))
- (when real-symbol (eval `(trace ,real-symbol))))))
- (defun ilisp-untrace (symbol package)
- "Untrace SYMBOL in PACKAGE."
- (ilisp-errors
- (let ((real-symbol (ilisp-find-symbol symbol package)))
- (when real-symbol (eval `(untrace ,real-symbol))))))
-
- ;;;
- (defun ilisp-compile-file (file extension)
- "Compile FILE putting the result in FILE+EXTENSION."
- (ilisp-errors
- (compile-file file
- :output-file
- (merge-pathnames (make-pathname :type extension) file))))
-
- ;;;
- (defun ilisp-casify (pattern string lower-p upper-p)
- "Return STRING with its characters converted to the case of PATTERN,
- continuing with the last case beyond the end."
- (cond (lower-p (string-downcase string))
- (upper-p (string-upcase string))
- (t
- (let (case)
- (concatenate
- 'string
- (map 'string
- #'(lambda (p s)
- (setq case (if (upper-case-p p)
- #'char-upcase
- #'char-downcase))
- (funcall case s))
- pattern string)
- (map 'string case (subseq string (length pattern))))))))
-
- ;;;
- (defun ilisp-words (string)
- "Return STRING broken up into words. Each word is (start end
- delimiter)."
- (do* ((length (length string))
- (start 0)
- (end t)
- (words nil))
- ((null end) (nreverse words))
- (if (setq end (position-if-not #'alphanumericp string :start start))
- (setq words (cons (list end (1+ end) t)
- (if (= start end)
- words
- (cons (list start end nil) words)))
- start (1+ end))
- (setq words (cons (list start length nil) words)))))
-
- ;;;
- (defun ilisp-match-words (string pattern words)
- "Match STRING to PATTERN using WORDS."
- (do* ((strlen (length string))
- (words words (cdr words))
- (word (first words) (first words))
- (start1 (first word) (first word))
- (end1 (second word) (second word))
- (delimiter (third word) (third word))
- (len (- end1 start1) (and word (- end1 start1)))
- (start2 0)
- (end2 len))
- ((or (null word) (null start2)) start2)
- (setq end2 (+ start2 len)
- start2
- (if delimiter
- (position (elt pattern start1) string :start start2)
- (when (and (<= end2 strlen)
- (string= pattern string
- :start1 start1 :end1 end1
- :start2 start2 :end2 end2))
- (1- end2))))
- (when start2 (incf start2))))
-
- ;;;
- (defun ilisp-matching-symbols (string package &optional (function-p nil)
- (external-p nil)
- (prefix-p nil))
- "Return a list of the symbols that have STRING as a prefix in
- PACKAGE. FUNCTION-P indicates that only symbols with a function value
- should be considered. EXTERNAL-P indicates that only external symbols
- should be considered. PREFIX-P means that partial matches should not
- be considered. The returned strings have the same case as the
- original string."
- (ilisp-errors
- (let* ((lower-p (notany #'upper-case-p string))
- (upper-p (notany #'lower-case-p string))
- (no-casify (eq (ilisp-readtable-case *readtable*) :preserve))
- (symbol-string (ilisp-symbol-name string))
- (length (length string))
- (results nil)
- (*print-length* nil)
- (*package* (ilisp-find-package package)))
- (labels
- (
- ;; Check SYMBOL against PATTERN
- (check-symbol (symbol pattern)
- (let ((name (symbol-name symbol)))
- (when (and (or (not function-p) (fboundp symbol))
- (>= (length name) length)
- (string= pattern name :end2 length))
- (push (list (if no-casify
- name
- (ilisp-casify pattern name lower-p upper-p)))
- results))))
- ;; Check SYMBOL against PATTERN using WORDS
- (check-symbol2 (symbol pattern words)
- (let ((name (symbol-name symbol)))
- (when (and (or (not function-p) (fboundp symbol))
- (ilisp-match-words name pattern words))
- (push (list (if no-casify
- name
- (ilisp-casify pattern name lower-p upper-p)))
- results)))))
- (if external-p
- (do-external-symbols (symbol *package*)
- (check-symbol symbol symbol-string))
- (progn
- ;; KCL does not go over used symbols.
- #+(or kcl ibcl)
- (dolist (used-package (package-use-list *package*))
- (do-external-symbols (symbol used-package)
- (check-symbol symbol symbol-string)))
- (do-symbols (symbol *package*)
- (check-symbol symbol symbol-string))))
- (unless (or results prefix-p)
- (let ((words (ilisp-words symbol-string)))
- (if external-p
- (do-external-symbols (symbol *package*)
- (check-symbol2 symbol symbol-string words))
- (progn
- ;; KCL does not go over used symbols.
- #+(or kcl ibcl)
- (dolist (used-package (package-use-list *package*))
- (do-external-symbols (symbol used-package)
- (check-symbol2 symbol symbol-string words)))
- (do-symbols (symbol *package*)
- (check-symbol2 symbol symbol-string words))))))
- (prin1 results)
- nil))))
-
- ;;; Make sure that functions are exported
- (dolist (symbol '(ilisp-errors ilisp-save ilisp-restore
- ilisp-symbol-name ilisp-find-symbol ilisp-find-package
- ilisp-eval ilisp-compile
- ilisp-describe ilisp-inspect
- ilisp-arglist ilisp-documentation
- ilisp-macroexpand ilisp-macroexpand-1
- ilisp-trace ilisp-untrace
- ilisp-compile-file ilisp-casify
- ilisp-matching-symbols))
- (export symbol))
- (unless (compiled-function-p #'ilisp-matching-symbols)
- (format t "\"ILISP: File is not compiled, use M-x ilisp-compile-inits\""))
-