(let ((namestring (handler-case (namestring pathname)
(error nil))))
(if namestring
- (format stream "#P~S" namestring)
+ (format stream "#P~S" (coerce namestring '(simple-array character (*))))
(print-unreadable-object (pathname stream :type t)
(format stream
"~@<(with no namestring) ~_:HOST ~S ~_:DEVICE ~S ~_:DIRECTORY ~S ~
- ~_:NAME ~S ~_:TYPE ~S ~_:VERSION ~S~:>"
+ ~_:NAME ~S ~_:TYPE ~S ~_:VERSION ~S~:>"
(%pathname-host pathname)
(%pathname-device pathname)
(%pathname-directory pathname)
(def!method make-load-form ((pathname pathname) &optional environment)
(make-load-form-saving-slots pathname :environment environment))
-
-;;; The potential conflict with search lists requires isolating the
-;;; printed representation to use the i/o macro #.(logical-pathname
-;;; <path-designator>).
-;;;
-;;; FIXME: We don't use search lists any more, so that comment is
-;;; stale, right?
-(def!method print-object ((pathname logical-pathname) stream)
- (let ((namestring (handler-case (namestring pathname)
- (error nil))))
- (if namestring
- (format stream "#.(CL:LOGICAL-PATHNAME ~S)" namestring)
- (print-unreadable-object (pathname stream :type t)
- (format
- stream
- "~_:HOST ~S ~_:DIRECTORY ~S ~_:FILE ~S ~_:NAME ~S ~_:VERSION ~S"
- (%pathname-host pathname)
- (%pathname-directory pathname)
- (%pathname-name pathname)
- (%pathname-type pathname)
- (%pathname-version pathname))))))
\f
;;; A pathname is logical if the host component is a logical host.
;;; This constructor is used to make an instance of the correct type
(upcase-maybe name)
(upcase-maybe type)
version)
- (%make-pathname host device directory name type version))))
+ (progn
+ (aver (eq host *unix-host*))
+ (%make-pathname host device directory name type version)))))
;;; Hash table searching maps a logical pathname's host to its
;;; physical pathname translation.
(or (eq thing wild)
(eq wild :wild)
(typecase thing
- (simple-base-string
+ (simple-string
;; String is matched by itself, a matching pattern or :WILD.
(typecase wild
(pattern
(values (pattern-matches wild thing)))
- (simple-base-string
+ (simple-string
(string= thing wild))))
(pattern
;; A pattern is only matched by an identical pattern.
(%pathname-name pathname2))
(compare-component (%pathname-type pathname1)
(%pathname-type pathname2))
- (compare-component (%pathname-version pathname1)
- (%pathname-version pathname2))))
+ (or (eq (%pathname-host pathname1) *unix-host*)
+ (compare-component (%pathname-version pathname1)
+ (%pathname-version pathname2)))))
;;; Convert PATHNAME-DESIGNATOR (a pathname, or string, or
;;; stream), into a pathname in pathname.
(,pathname (etypecase ,pd0
(pathname ,pd0)
(string (parse-namestring ,pd0))
- (stream (file-name ,pd0)))))
+ (file-stream (file-name ,pd0)))))
,@body)))
;;; Convert the var, a host or string name for a host, into a
(simple-string
(check-for pred piece))
(cons
- (case (car in)
+ (case (car piece)
(:character-set
- (check-for pred (cdr in))))))
+ (check-for pred (cdr piece))))))
(return t))))
(list
(dolist (x in)
(when (check-for pred x)
(return t))))
- (simple-base-string
+ (simple-string
(dotimes (i (length in))
(when (funcall pred (schar in i))
(return t))))
(make-pattern
(mapcar (lambda (piece)
(typecase piece
- (simple-base-string
+ (simple-string
(funcall fun piece))
(cons
(case (car piece)
(pattern-pieces thing))))
(list
(mapcar fun thing))
- (simple-base-string
+ (simple-string
(funcall fun thing))
(t
thing))))
(flet ((add (dir)
(if (and (eq dir :back)
results
- (not (eq (car results) :back)))
+ (not (member (car results)
+ '(:back :wild-inferiors))))
(pop results)
(push dir results))))
(dolist (dir (maybe-diddle-case dir2 diddle-case))
(maybe-diddle-case (%pathname-type defaults)
diddle-case))
(or (%pathname-version pathname)
+ (and (not (%pathname-name pathname)) (%pathname-version defaults))
default-version))))))
(defun import-directory (directory diddle-case)
(default-host (if defaults
(%pathname-host defaults)
(pathname-host *default-pathname-defaults*)))
- ;; toy@rtp.ericsson.se: CLHS says make-pathname can take a
+ ;; Raymond Toy writes: CLHS says make-pathname can take a
;; string (as a logical-host) for the host part. We map that
;; string into the corresponding logical host structure.
;;
- ;; pw@snoopy.mv.com:
+ ;; Paul Werkowski writes:
;; HyperSpec says for the arg to MAKE-PATHNAME;
;; "host---a valid physical pathname host. ..."
;; where it probably means -- a valid pathname host.
;; It seems an error message is appropriate.
(host (typecase host
(host host) ; A valid host, use it.
+ ((string 0) *unix-host*) ; "" cannot be a logical host
(string (find-logical-host host t)) ; logical-host or lose.
(t default-host))) ; unix-host
(diddle-args (and (eq (host-customary-case host) :lower)
(let ((potential-host
(logical-word-or-lose (subseq namestr start colon))))
;; depending on the outcome of CSR comp.lang.lisp post
- ;; "can PARSE-NAMESTRING create logical hosts, we may need
+ ;; "can PARSE-NAMESTRING create logical hosts", we may need
;; to do things with potential-host (create it
;; temporarily, parse the namestring and unintern the
;; logical host potential-host on failure.
(type string namestr)
(type index start)
(type (or index null) end))
- (if junk-allowed
- (handler-case
- (%parse-namestring namestr host defaults start end nil)
- (namestring-parse-error (condition)
- (values nil (namestring-parse-error-offset condition))))
- (let* ((end (or end (length namestr))))
- (multiple-value-bind (new-host device directory file type version)
- ;; Comments below are quotes from the HyperSpec
- ;; PARSE-NAMESTRING entry, reproduced here to demonstrate
- ;; that we actually have to do things this way rather than
- ;; some possibly more logical way. - CSR, 2002-04-18
- (cond
- ;; "If host is a logical host then thing is parsed as a
- ;; logical pathname namestring on the host."
- (host (funcall (host-parse host) namestr start end))
- ;; "If host is nil and thing is a syntactically valid
- ;; logical pathname namestring containing an explicit
- ;; host, then it is parsed as a logical pathname
- ;; namestring."
- ((parseable-logical-namestring-p namestr start end)
- (parse-logical-namestring namestr start end))
- ;; "If host is nil, default-pathname is a logical
- ;; pathname, and thing is a syntactically valid logical
- ;; pathname namestring without an explicit host, then it
- ;; is parsed as a logical pathname namestring on the
- ;; host that is the host component of default-pathname."
- ;;
- ;; "Otherwise, the parsing of thing is
- ;; implementation-defined."
- ;;
- ;; Both clauses are handled here, as the default
- ;; *DEFAULT-PATHNAME-DEFAULTS has a SB-IMPL::UNIX-HOST
- ;; for a host.
- ((pathname-host defaults)
- (funcall (host-parse (pathname-host defaults)) namestr start end))
- ;; I don't think we should ever get here, as the default
- ;; host will always have a non-null HOST, given that we
- ;; can't create a new pathname without going through
- ;; *DEFAULT-PATHNAME-DEFAULTS*, which has a non-null
- ;; host...
- (t (bug "Fallen through COND in %PARSE-NAMESTRING")))
- (when (and host new-host (not (eq new-host host)))
- (error 'simple-type-error
- :datum new-host
- ;; Note: ANSI requires that this be a TYPE-ERROR,
- ;; but there seems to be no completely correct
- ;; value to use for TYPE-ERROR-EXPECTED-TYPE.
- ;; Instead, we return a sort of "type error allowed
- ;; type", trying to say "it would be OK if you
- ;; passed NIL as the host value" but not mentioning
- ;; that a matching string would be OK too.
- :expected-type 'null
- :format-control
- "The host in the namestring, ~S,~@
- does not match the explicit HOST argument, ~S."
- :format-arguments (list new-host host)))
- (let ((pn-host (or new-host host (pathname-host defaults))))
- (values (%make-maybe-logical-pathname
- pn-host device directory file type version)
- end))))))
+ (cond
+ (junk-allowed
+ (handler-case
+ (%parse-namestring namestr host defaults start end nil)
+ (namestring-parse-error (condition)
+ (values nil (namestring-parse-error-offset condition)))))
+ (t
+ (let* ((end (%check-vector-sequence-bounds namestr start end)))
+ (multiple-value-bind (new-host device directory file type version)
+ ;; Comments below are quotes from the HyperSpec
+ ;; PARSE-NAMESTRING entry, reproduced here to demonstrate
+ ;; that we actually have to do things this way rather than
+ ;; some possibly more logical way. - CSR, 2002-04-18
+ (cond
+ ;; "If host is a logical host then thing is parsed as a
+ ;; logical pathname namestring on the host."
+ (host (funcall (host-parse host) namestr start end))
+ ;; "If host is nil and thing is a syntactically valid
+ ;; logical pathname namestring containing an explicit
+ ;; host, then it is parsed as a logical pathname
+ ;; namestring."
+ ((parseable-logical-namestring-p namestr start end)
+ (parse-logical-namestring namestr start end))
+ ;; "If host is nil, default-pathname is a logical
+ ;; pathname, and thing is a syntactically valid logical
+ ;; pathname namestring without an explicit host, then it
+ ;; is parsed as a logical pathname namestring on the
+ ;; host that is the host component of default-pathname."
+ ;;
+ ;; "Otherwise, the parsing of thing is
+ ;; implementation-defined."
+ ;;
+ ;; Both clauses are handled here, as the default
+ ;; *DEFAULT-PATHNAME-DEFAULTS has a SB-IMPL::UNIX-HOST
+ ;; for a host.
+ ((pathname-host defaults)
+ (funcall (host-parse (pathname-host defaults))
+ namestr
+ start
+ end))
+ ;; I don't think we should ever get here, as the default
+ ;; host will always have a non-null HOST, given that we
+ ;; can't create a new pathname without going through
+ ;; *DEFAULT-PATHNAME-DEFAULTS*, which has a non-null
+ ;; host...
+ (t (bug "Fallen through COND in %PARSE-NAMESTRING")))
+ (when (and host new-host (not (eq new-host host)))
+ (error 'simple-type-error
+ :datum new-host
+ ;; Note: ANSI requires that this be a TYPE-ERROR,
+ ;; but there seems to be no completely correct
+ ;; value to use for TYPE-ERROR-EXPECTED-TYPE.
+ ;; Instead, we return a sort of "type error allowed
+ ;; type", trying to say "it would be OK if you
+ ;; passed NIL as the host value" but not mentioning
+ ;; that a matching string would be OK too.
+ :expected-type 'null
+ :format-control
+ "The host in the namestring, ~S,~@
+ does not match the explicit HOST argument, ~S."
+ :format-arguments (list new-host host)))
+ (let ((pn-host (or new-host host (pathname-host defaults))))
+ (values (%make-maybe-logical-pathname
+ pn-host device directory file type version)
+ end)))))))
;;; If NAMESTR begins with a colon-terminated, defined, logical host,
;;; then return that host, otherwise return NIL.
(defun extract-logical-host-prefix (namestr start end)
- (declare (type simple-base-string namestr)
+ (declare (type simple-string namestr)
(type index start end)
(values (or logical-host null)))
(let ((colon-pos (position #\: namestr :start start :end end)))
host
(defaults *default-pathname-defaults*)
&key (start 0) end junk-allowed)
- (declare (type pathname-designator thing)
+ (declare (type pathname-designator thing defaults)
(type (or list host string (member :unspecific)) host)
- (type pathname defaults)
(type index start)
(type (or index null) end)
(type (or t null) junk-allowed)
;; A logical host is an object of implementation-dependent nature. In
;; SBCL, it's a member of the HOST class (a subclass of STRUCTURE-OBJECT).
(let ((found-host (etypecase host
+ ((string 0)
+ ;; This is a special host. It's not valid as a
+ ;; logical host, so it is a sensible thing to
+ ;; designate the physical Unix host object. So
+ ;; we do that.
+ *unix-host*)
(string
;; In general ANSI-compliant Common Lisps, a
;; string might also be a physical pathname host,
supported in this implementation:~% ~S"
host))
(host
- host))))
- (declare (type (or null host) found-host))
+ host)))
+ ;; According to ANSI defaults may be any valid pathname designator
+ (defaults (etypecase defaults
+ (pathname
+ defaults)
+ (string
+ (aver (pathnamep *default-pathname-defaults*))
+ (parse-namestring defaults))
+ (stream
+ (truename defaults)))))
+ (declare (type (or null host) found-host)
+ (type pathname defaults))
(etypecase thing
(simple-string
(%parse-namestring thing found-host defaults start end junk-allowed))
(defun namestring (pathname)
#!+sb-doc
"Construct the full (name)string form of the pathname."
- (declare (type pathname-designator pathname)
- (values (or null simple-base-string)))
+ (declare (type pathname-designator pathname))
(with-pathname (pathname pathname)
(when pathname
(let ((host (%pathname-host pathname)))
(unless host
(error "can't determine the namestring for pathnames with no ~
- host:~% ~S" pathname))
+ host:~% ~S" pathname))
(funcall (host-unparse host) pathname)))))
(defun host-namestring (pathname)
#!+sb-doc
"Return a string representation of the name of the host in the pathname."
- (declare (type pathname-designator pathname)
- (values (or null simple-base-string)))
+ (declare (type pathname-designator pathname))
(with-pathname (pathname pathname)
(let ((host (%pathname-host pathname)))
(if host
(defun directory-namestring (pathname)
#!+sb-doc
"Return a string representation of the directories used in the pathname."
- (declare (type pathname-designator pathname)
- (values (or null simple-base-string)))
+ (declare (type pathname-designator pathname))
(with-pathname (pathname pathname)
(let ((host (%pathname-host pathname)))
(if host
(defun file-namestring (pathname)
#!+sb-doc
"Return a string representation of the name used in the pathname."
- (declare (type pathname-designator pathname)
- (values (or null simple-base-string)))
+ (declare (type pathname-designator pathname))
(with-pathname (pathname pathname)
(let ((host (%pathname-host pathname)))
(if host
(declare (type pathname-designator in-pathname))
(with-pathname (pathname in-pathname)
(with-pathname (wildname in-wildname)
- (macrolet ((frob (field &optional (op 'components-match ))
+ (macrolet ((frob (field &optional (op 'components-match))
`(or (null (,field wildname))
(,op (,field pathname) (,field wildname)))))
(and (or (null (%pathname-host wildname))
(frob %pathname-directory directory-components-match)
(frob %pathname-name)
(frob %pathname-type)
- (frob %pathname-version))))))
+ (or (eq (%pathname-host wildname) *unix-host*)
+ (frob %pathname-version)))))))
;;; Place the substitutions into the pattern and return the string or pattern
;;; that results. If DIDDLE-CASE is true, we diddle the result case as well,
(defun substitute-into (pattern subs diddle-case)
(declare (type pattern pattern)
(type list subs)
- (values (or simple-base-string pattern) list))
+ (values (or simple-string pattern) list))
(let ((in-wildcard nil)
(pieces nil)
(strings nil))
(setf in-wildcard t)
(unless subs
(error "not enough wildcards in FROM pattern to match ~
- TO pattern:~% ~S"
+ TO pattern:~% ~S"
pattern))
(let ((sub (pop subs)))
(typecase sub
(push sub strings))
(t
(error "can't substitute this into the middle of a word:~
- ~% ~S"
+ ~% ~S"
sub)))))))
(when strings
;;; Called when we can't see how source and from matched.
(defun didnt-match-error (source from)
(error "Pathname components from SOURCE and FROM args to TRANSLATE-PATHNAME~@
- did not match:~% ~S ~S"
+ did not match:~% ~S ~S"
source from))
-;;; Do TRANSLATE-COMPONENT for all components except host and directory.
+;;; Do TRANSLATE-COMPONENT for all components except host, directory
+;;; and version.
(defun translate-component (source from to diddle-case)
(typecase to
(pattern
(let ((match (pop subs-left)))
(when (listp match)
(error ":WILD-INFERIORS is not paired in from and to ~
- patterns:~% ~S ~S" from to))
+ patterns:~% ~S ~S" from to))
(res (maybe-diddle-case match diddle-case))))
((member :wild-inferiors)
(aver subs-left)
(let ((match (pop subs-left)))
(unless (listp match)
(error ":WILD-INFERIORS not paired in from and to ~
- patterns:~% ~S ~S" from to))
+ patterns:~% ~S ~S" from to))
(dolist (x match)
(res (maybe-diddle-case x diddle-case)))))
(pattern
(with-pathname (from from-wildname)
(with-pathname (to to-wildname)
(let* ((source-host (%pathname-host source))
+ (from-host (%pathname-host from))
(to-host (%pathname-host to))
(diddle-case
(and source-host to-host
(frob %pathname-directory translate-directories)
(frob %pathname-name)
(frob %pathname-type)
- (frob %pathname-version))))))))
+ (if (eq from-host *unix-host*)
+ (if (eq (%pathname-version to) :wild)
+ (%pathname-version from)
+ (%pathname-version to))
+ (frob %pathname-version)))))))))
\f
;;;; logical pathname support. ANSI 92-102 specification.
;;;;
;;; contains only legal characters.
(defun logical-word-or-lose (word)
(declare (string word))
+ (when (string= word "")
+ (error 'namestring-parse-error
+ :complaint "Attempted to treat invalid logical hostname ~
+ as a logical host:~% ~S"
+ :args (list word)
+ :namestring word :offset 0))
(let ((word (string-upcase word)))
(dotimes (i (length word))
(let ((ch (schar word i)))
- (unless (or (alpha-char-p ch) (digit-char-p ch) (char= ch #\-))
+ (unless (and (typep ch 'standard-char)
+ (or (alpha-char-p ch) (digit-char-p ch) (char= ch #\-)))
(error 'namestring-parse-error
:complaint "logical namestring character which ~
- is not alphanumeric or hyphen:~% ~S"
+ is not alphanumeric or hyphen:~% ~S"
:args (list ch)
:namestring word :offset i))))
- word))
+ (coerce word 'base-string)))
;;; Given a logical host or string, return a logical host. If ERROR-P
;;; is NIL, then return NIL when no such host exists.
(when (pattern)
(error 'namestring-parse-error
:complaint "double asterisk inside of logical ~
- word: ~S"
+ word: ~S"
:args (list chunk)
:namestring namestring
:offset (+ (cdar chunks) pos)))
;;; Break up a logical-namestring, always a string, into its
;;; constituent parts.
(defun parse-logical-namestring (namestr start end)
- (declare (type simple-base-string namestr)
+ (declare (type simple-string namestr)
(type index start end))
(collect ((directory))
(let ((host nil)
(unless (and res (plusp res))
(error 'namestring-parse-error
:complaint "expected a positive integer, ~
- got ~S"
+ got ~S"
:args (list str)
:namestring namestr
:offset (+ pos (cdar chunks))))
(defun unparse-logical-piece (thing)
(etypecase thing
+ ((member :wild) "*")
(simple-string thing)
(pattern
(collect ((strings))
(t (error "invalid keyword: ~S" piece))))))
(apply #'concatenate 'simple-string (strings))))))
+(defun unparse-logical-file (pathname)
+ (declare (type pathname pathname))
+ (collect ((strings))
+ (let* ((name (%pathname-name pathname))
+ (type (%pathname-type pathname))
+ (version (%pathname-version pathname))
+ (type-supplied (not (or (null type) (eq type :unspecific))))
+ (version-supplied (not (or (null version)
+ (eq version :unspecific)))))
+ (when name
+ (when (and (null type) (position #\. name :start 1))
+ (error "too many dots in the name: ~S" pathname))
+ (strings (unparse-logical-piece name)))
+ (when type-supplied
+ (unless name
+ (error "cannot specify the type without a file: ~S" pathname))
+ (when (typep type 'simple-string)
+ (when (position #\. type)
+ (error "type component can't have a #\. inside: ~S" pathname)))
+ (strings ".")
+ (strings (unparse-logical-piece type)))
+ (when version-supplied
+ (unless type-supplied
+ (error "cannot specify the version without a type: ~S" pathname))
+ (etypecase version
+ ((member :newest) (strings ".NEWEST"))
+ ((member :wild) (strings ".*"))
+ (fixnum (strings ".") (strings (format nil "~D" version))))))
+ (apply #'concatenate 'simple-string (strings))))
+
;;; Unparse a logical pathname string.
(defun unparse-enough-namestring (pathname defaults)
(let* ((path-directory (pathname-directory pathname))
;; DEF-DIRECTORY is :ABSOLUTE, as handled above. so return
;; the original directory.
path-directory))))
- (make-pathname :host (pathname-host pathname)
- :directory enough-directory
- :name (pathname-name pathname)
- :type (pathname-type pathname)
- :version (pathname-version pathname))))
+ (unparse-logical-namestring
+ (make-pathname :host (pathname-host pathname)
+ :directory enough-directory
+ :name (pathname-name pathname)
+ :type (pathname-type pathname)
+ :version (pathname-version pathname)))))
(defun unparse-logical-namestring (pathname)
(declare (type logical-pathname pathname))
(concatenate 'simple-string
(logical-host-name (%pathname-host pathname)) ":"
(unparse-logical-directory pathname)
- (unparse-unix-file pathname)))
+ (unparse-logical-file pathname)))
\f
;;;; logical pathname translations
(canonicalize-logical-pathname-translations translations host))
(setf (logical-host-translations host) translations)))
-;;; KLUDGE: Ordinarily known functions aren't defined recursively, and
-;;; it's common for compiler problems (e.g. missing/broken
-;;; optimization transforms) to cause them to recurse inadvertently,
-;;; so the compiler should warn about it. But the natural definition
-;;; of TRANSLATE-LOGICAL-PATHNAME *is* recursive; and we don't want
-;;; the warning, so we hide the definition of T-L-P in this
-;;; differently named function so that the compiler won't warn about
-;;; it. -- WHN 2001-09-16
-(defun %translate-logical-pathname (pathname)
+(defun translate-logical-pathname (pathname &key)
+ #!+sb-doc
+ "Translate PATHNAME to a physical pathname, which is returned."
(declare (type pathname-designator pathname)
(values (or null pathname)))
(typecase pathname
(return (translate-logical-pathname
(translate-pathname pathname from to)))))))
(pathname pathname)
- (stream (translate-logical-pathname (pathname pathname)))
- (t (translate-logical-pathname (logical-pathname pathname)))))
-
-(defun translate-logical-pathname (pathname &key)
- #!+sb-doc
- "Translate PATHNAME to a physical pathname, which is returned."
- (declare (type pathname-designator pathname)
- (values (or null pathname)))
- (%translate-logical-pathname pathname))
+ (t (translate-logical-pathname (pathname pathname)))))
(defvar *logical-pathname-defaults*
- (%make-logical-pathname (make-logical-host :name "BOGUS")
- :unspecific
- nil
- nil
- nil
- nil))
+ (%make-logical-pathname
+ (make-logical-host :name (logical-word-or-lose "BOGUS"))
+ :unspecific nil nil nil nil))
(defun load-logical-pathname-translations (host)
#!+sb-doc
(values (member t nil)))
(if (find-logical-host host nil)
;; This host is already defined, all is well and good.
- t
+ nil
;; ANSI: "The specific nature of the search is
;; implementation-defined." SBCL: doesn't search at all
+ ;;
+ ;; FIXME: now that we have a SYS host that the system uses, it
+ ;; might be cute to search in "SYS:TRANSLATIONS;<name>.LISP"
(error "logical host ~S not found" host)))