December 2011 - armedbear-ticket - mailman3.common-lisp.net

[armedbear-ticket] [armedbear] #132: Inconsistent use of :case :common for pathnames
by armedbear 09 Dec '12

09 Dec '12

#132: Inconsistent use of :case :common for pathnames -------------------------+-------------------------------------------------- Reporter: mevenson | Owner: ehuelsmann Type: defect | Status: new Priority: major | Milestone: 0.25 Component: interpreter | Version: 0.24 Keywords: | -------------------------+-------------------------------------------------- Pascal Bourguignon notes: {{{ CLHS says: 19.2.2.1.2.2 Common Case in Pathname Components For the functions in Figure 19-2, a value of :common for the :case argument that these functions should receive and yield strings in component values according to the following conventions: * All uppercase means to use a file system's customary case. * All lowercase means to use the opposite of the customary case. * Mixed case represents itself. Note that these conventions have been chosen in such a way that translation from :local to :common and back to :local is information-preserving. [pjb@kuiper :0.0 lisp]$ abcl Armed Bear Common Lisp 0.20.0 Java 1.6.0_22 Sun Microsystems Inc. Java HotSpot(TM) Server VM Low-level initialization completed in 0.265 seconds. Startup completed in 0.718 seconds. Type ":help" for a list of available commands. CL-USER(1): (make-pathname :name "TEST" :type "LISP" :case :common) #P"TEST.LISP" CL-USER(2): (namestring (make-pathname :name "TEST" :type "LISP" :case :common)) "TEST.LISP" I'm on a linux system on a ext3 file system. The customary case is lower case (case significant on this particular file system, but 99.999% of the files on unix are lower case). Therefore I would expect to get #P"test.lisp" Notice that: (make-pathname :name "test" :type "lisp" :case :common) should produce #P"TEST.LISP" and that: (make-pathname :name "Test" :type "Lisp" :case :common) should produce #P"Test.Lisp" }}} {{{ Mark Evenson writes: > > On 11/7/10 5:02 AM, Pascal J. Bourguignon wrote: >> >> >> >> CLHS says: >> >> >> >> 19.2.2.1.2.2 Common Case in Pathname Components >> >> >> >> For the functions in Figure 19-2, a value of :common for the :case >> >> argument that these functions should receive and yield strings in >> >> component values according to the following conventions: >> >> >> >> * All uppercase means to use a file system's customary case. >> >> * All lowercase means to use the opposite of the customary case. >> >> * Mixed case represents itself. >> >> >> >> Note that these conventions have been chosen in such a way that >> >> translation from :local to :common and back to :local is >> >> information-preserving. > > > > What an odd corner of the CLHS, littered with the bones of extinct > > filesystems! This behavior that seems like it would produce > > unpleasantries much more than it would help anyone, violating the > > principle of least surprise. But we claim that ABCL will be ANSI first > > and foremost, so I guess we have to pay attention here… I should mention that I use routinely logical pathnames, and they work very well, on all implementations that conformantly implement them. That means that all my logical pathnames are always upcase letters, and no special symbols (apart from an occasional dash). I understand that using implementation dependant syntax (special characters, lower-case, mixed-case) in logical pathnames can lead to surprises, but I avoid them. Now, it's not a question of extinct file systems. You still have to deal with at least two different major syntaxes: POSIX and MS-Windows/MS-DOS. I just cannot use in programs that will have to run on both Linux or MacOSX and MS-Windows physical pathname literals, because they don't use the same syntax. On the other hand, #P"HOME:SRC;LISP;EXAMPLE.LISP" can be translated to either #P"C:\\Users Files\\Pascal\\src\\lisp\\example.lisp" or #P"/home/pjb/src/lisp/example.lisp" portably on these targets. The point for an implementation is to know what it's targets are, and to implement proper behavior when translating and merging logical pathnames. You must be careful when merging logical pathnames with physical pathnames, notably when it's done in make-pathname: the :case parameter must have effect only on the new strings, not on the :defaults parameter. > > I suppose there is no definition of "customary case", huh? Indeed. > > Pascal suggests a notion of filesystem statistics ("99.999% of files > > are lowercase") but for a developer dealing with lots of Java files > > this isn't very releavant. Does Java provide its own file system, or does it map to the host file system? Notice that logical pathnames don't have to be able to represent all the physical pathnames, without an explicit translation. If you have a file system that is case sensitive, then you may write: (setf (logical-pathname-translations "APP") (list (list #P"APP:EXAMPLE;FILE.LISP" #P"/MyApp/Example/File.lisp") (list #P"APP:EXAMPLE;ANOTHER-FILE.LISP" #P"/MyApp/Example/AnotherFile.lisp") (list #P"APP:EXAMPLE;*.DATA" #P"/MyApp/Example/*.appdata") (list #P"APP:EXAMPLE;SOME-MODULE.*" #P"/MyApp/Example/SomeBigModule.*") (list #P"APP:APP.CONFIGURATION" #P"/MyApp/.config") (list #P"APP:CUSTOMARY;**;*" #P"/MyApp;**;*") (list #P"APP:CUSTOMARY;**;*.*" #P"/MyApp;**;*.*"))) to be able to access to files with strange physical names. The question indeed is to decide what is the customary case. You can choose uppercase or you can choose lowercase. This matters only for file systems that are case sensitive, but even file systems that are not case sensitive, such as MS-DOS, have a prefered way to display the names. > > Lacking a more precise definition, I would then advocate that we declare > > lowercase to be the customary case across UNIX, OSX, and Windows for > > ABCL, patching our behavior accordingly. That would be good. > > I thought briefly about advocating Windows to have "uppercase" as its > > customary case, but that is only really true in a DOS world which > > "modern" Windows systems really aren't any more. Yes. > > And although we theoretically run on JVMs on say VMS, if we run into > > such needs, we might devote a user-accessible special variable to > > control the implementation. This is also a good option. }}} -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/132> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 10

[armedbear-ticket] [armedbear] #165: pprint-logical-block fails for format with list directive
by armedbear 07 Dec '12

07 Dec '12

#165: pprint-logical-block fails for format with list directive ----------------------------+----------------------------------------------- Reporter: mevenson | Owner: somebody Type: defect | Status: new Priority: major | Milestone: 0.27 Component: other | Version: 0.27 Keywords: sbcl-buildhost | ----------------------------+----------------------------------------------- Derived from the problems getting SBCL to compile, the following test fails with complaints in the XP package: {{{ (defparameter *stream* *error-output*) (defun pprint-test () (pprint-logical-block (*stream* nil :prefix "---") (format *stream* "~(~A~)" '(1 2 3 4)))) }}} with this error {{{ The value #S(XP::XP-STRUCTURE :BASE-STREAM #S(SLIME-OUTPUT-STREAM) :LINE- LENGTH 70 :LINE-LIMIT NIL :LINE-NO 1 :DEPTH-IN-BLOCKS 2 :BLOCK-STACK #(0 0 3 NIL NIL NIL NIL NIL NIL NIL ...) :BLOCK-STACK-PTR 2 :BUFFER … is not of type STREAM. [Condition of type TYPE-ERROR] -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/165> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 11

[armedbear-ticket] [armedbear] #118: Lisp.getUpgradedElementType returns more types than supported by 'make_array.java'
by armedbear 07 Dec '12

07 Dec '12

#118: Lisp.getUpgradedElementType returns more types than supported by 'make_array.java' ------------------------+--------------------------------------------------- Reporter: ehuelsmann | Owner: nobody Type: defect | Status: new Priority: major | Milestone: Component: libraries | Version: Keywords: | ------------------------+--------------------------------------------------- The above leads to possible failure: each upgraded element type has its own associated defaultInitialValue. If the code does not specify the right initial value, NIL is taken, which probably is not a good fit. -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/118> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 8

[armedbear-ticket] [armedbear] #174: Conformance bug in time implementation
by armedbear 17 Nov '12

17 Nov '12

#174: Conformance bug in time implementation ----------------------------------------------------------------------------------------------+ Reporter: https://www.google.com/accounts/o8/id?id=AItOawkDgxhblL5hWamZidYhAD6W-l7W_L… | Owner: somebody Type: defect | Status: new Priority: trivial | Milestone: Component: other | Version: 0.27 Keywords: time, macro, conformance bug | ----------------------------------------------------------------------------------------------+ ABCL's time implementation does not return multiple values as specified in HyperSpec. (time (values 1 2)) => 1 instead of 1 and 2 a test could be (assert (= 2 (length (multiple-value-list (time (values 1 2)))))) an implementation is given [http://clisp.hg.sourceforge.net/hgweb/clisp/clisp/file/6afcecc6bb2c/src/mac… here]. -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/174> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 15

[armedbear-ticket] [armedbear] #186: org.armedbear.lisp.IntegrityError means you need to check out how ABCL is finding boot.lisp
by armedbear 02 Sep '12

02 Sep '12

#186: org.armedbear.lisp.IntegrityError means you need to check out how ABCL is finding boot.lisp ----------------------------+----------------------------------------------- Reporter: mevenson | Owner: mevenson Type: defect | Status: new Priority: major | Milestone: unscheduled Component: other | Version: 1.0 Keywords: IntegrityError | ----------------------------+----------------------------------------------- [http://paste.lisp.org/+2P0S/1 org.armedbear.lisp.IntegrityError] -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/186> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 1

[armedbear-ticket] [armedbear] #130: SLIME under Windows has "extra" CRLF
by armedbear 02 Sep '12

02 Sep '12

#130: SLIME under Windows has "extra" CRLF ----------------------+----------------------------------------------------- Reporter: mevenson | Owner: mevenson Type: defect | Status: new Priority: minor | Milestone: Component: other | Version: Keywords: | ----------------------+----------------------------------------------------- Reported by ehu via #abcl -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/130> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 4

[armedbear-ticket] [armedbear] #189: Compiler fails for 'unsigned-byte type declaration
by armedbear 01 Sep '12

01 Sep '12

#189: Compiler fails for 'unsigned-byte type declaration --------------------------------+------------------------------------------- Reporter: mevenson | Owner: ehuelsmann Type: defect | Status: new Priority: minor | Milestone: 1.0.1 Component: compiler | Version: 1.0 Keywords: compiler, has-test | --------------------------------+------------------------------------------- From [http://article.gmane.org/gmane.lisp.armedbear.devel/2122 On <armedbear-devel@…>, Eric Marsden reports]: The following code seems to be miscompiled (works fine with an INTEGER type declaration). {{{ CL-USER(23): (lisp-implementation-version) "1.1.0-dev-svn-13695M" CL-USER(24): (compile nil (lambda (a) (declare (type unsigned-byte a)) (max 28105919 a 1016934843))) #<FUNCTION (LAMBDA (A)) {2D53EAFD}> NIL NIL CL-USER(25): (funcall * 10545160975) 1955226383 }}} (From ansi-test/random suite) -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/189> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 2

[armedbear-ticket] [armedbear] #113: DEFSTRUCT redefinition can crash ABCL on MAKE-FOO
by armedbear 19 Aug '12

19 Aug '12

#113: DEFSTRUCT redefinition can crash ABCL on MAKE-FOO ---------------------+------------------------------------------------------ Reporter: mseddon | Owner: nobody Type: defect | Status: new Priority: minor | Milestone: Component: java | Version: Keywords: | ---------------------+------------------------------------------------------ CL-USER(1): (defstruct foo x y) FOO CL-USER(2): (defstruct foo x y z) FOO CL-USER(3): (make-foo :x 1 :y 2 :z 3) ABCL Debug.assertTrue() assertion failed! java.lang.Error: ABCL Debug.assertTrue() assertion failed! at org.armedbear.lisp.Debug.assertTrue(Debug.java:46) at org.armedbear.lisp.StructureObject.writeToString(StructureObject.java :483) Multiple DEFSTRUCTs do not change the underlying structure class, but seem to cause StructureObject to assert if the new (almost ignored) definition had a different number of slots than the old. For example, while the above example crashes out ABCL, the following example does not: CL-USER(1): (defstruct foo a b c) FOO CL-USER(2): (defstruct foo x y z) FOO CL-USER(3): (make-foo :x 1 :y 2 :z 3) #S(FOO :A 1 :B 2 :C 3) -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/113> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 10

[armedbear-ticket] [armedbear] #176: Patch to get CFFI to find the JNA libraries dynamically via Maven3
by armedbear 13 Aug '12

13 Aug '12

#176: Patch to get CFFI to find the JNA libraries dynamically via Maven3 ----------------------------+----------------------------------------------- Reporter: mevenson | Owner: mevenson Type: defect | Status: new Priority: major | Milestone: unscheduled Component: libraries | Version: Keywords: quicklisp cffi | ----------------------------+----------------------------------------------- Need to get the following upstream to CFFI to ease use of JNA: {{{ #+abcl (eval-when (:load-toplevel) (require 'abcl-contrib) (require 'abcl-asdf) (java:add-to-classpath (abcl-asdf:resolve-dependencies "com.sun.jna" "jna" "3.0.9"))) }}} -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/176> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 1

[armedbear-ticket] [armedbear] #168: Compilation fails for quicklisp let-plus
by armedbear 08 Aug '12

08 Aug '12

#168: Compilation fails for quicklisp let-plus ----------------------------------------+----------------------------------- Reporter: mevenson | Owner: ehuelsmann Type: defect | Status: new Priority: major | Milestone: 0.28 Component: compiler | Version: Keywords: quicklisp ansi_confromance | ----------------------------------------+----------------------------------- let-plus-20110730-git, a dependency for LLA, cannot be compiled resulting in the following error: {{{ ; Loading /Users/evenson/.cache/common-lisp/abcl-0.27.0-dev-fasl37-macosx- java/Users/evenson/quicklisp/dists/quicklisp/software/let- plus-20110730-git/package.abcl ... ; Loaded /Users/evenson/.cache/common-lisp/abcl-0.27.0-dev-fasl37-macosx- java/Users/evenson/quicklisp/dists/quicklisp/software/let- plus-20110730-git/package.abcl (0.027 seconds) ; Compiling /Users/evenson/quicklisp/dists/quicklisp/software/let- plus-20110730-git/let-plus.lisp ... ; (IN-PACKAGE #:LET-PLUS) ; (DEFUN IGNORED? ...) ; (DEFUN REPLACE-IGNORED ...) ; (DEFUN EXPAND-SLOT-FORMS ...) ; (DEFUN EXPAND-ENTRY-FORMS ...) ; (DEFUN EXPAND-ARRAY-ELEMENTS ...) ; (DEFGENERIC LET+-EXPANSION ...) ; (DEFGENERIC LET+-EXPANSION-FOR-LIST ...) ; (DEFMACRO LET+ ...) ; (DEFMACRO DEFINE-LET+-EXPANSION ...) #<THREAD "interpreter" {52BBC66F}>: Debugger invoked on condition of type COMPILER-UNSUPPORTED-FEATURE-ERROR COMPILE-FORM unhandled case ((ANAPHORA:IT #:THIS-S2842)) }}} -- Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/168> armedbear <http://common-lisp.net/project/armedbear> armedbear

1 6