Thu Mar 8 05:15:58 UTC 2012 pix@kepibu.org
* Rename notes.org to README.org
move ./notes.org ./README.org
Mon Jul 20 18:34:17 UTC 2009 pix@kepibu.org
* see other links, and add reference to cl-syntax-sugar
hunk ./notes.org 111
-trivial-features -- smooths out the unnecessary differences between
- implementation *features*
-alexandria -- implements a #'featurep which exactly matches that used by the
- standard's #+/#- readmacros.
+
+[[http://www.cliki.net/trivial-features][trivial-features]]
+ smooths out the unnecessary differences between implementation *features*
+[[http://common-lisp.net/project/alexandria/][alexandria]]
+ implements a #'featurep which exactly matches that used by the standard's
+ #+/#- readmacros.
+[[http://common-lisp.net/project/cl-syntax-sugar/][cl-syntax-sugar]]
+ Offers a feature-case reader which is almost certainly more useful than
+ portaCL's feature-cond macro.
Mon Jul 20 07:07:16 UTC 2009 pix@kepibu.org
* Some org-mode syntaxisms
{
hunk ./notes.org 1
-PortaCL: Easing the Creation of CL Portability Libraries
+#+TITLE: PortaCL: Easing the Creation of CL Portability Libraries
hunk ./notes.org 63
-see feature-tests.lisp for usage examples.
+see [[http://repo.kepibu.org/portaCL/feature-tests.lisp][feature-tests.lisp]] for usage examples.
hunk ./notes.org 105
- (list #+(or) #+package:notexported a b c)
- (list #+(or) #+notapackage:foo a b c)
+ :(list #+(or) #+package:notexported a b c)
+ :(list #+(or) #+notapackage:foo a b c)
}
Mon Jul 20 06:58:45 UTC 2009 pix@kepibu.org
* Update bug list to include reader bug
hunk ./notes.org 100
-ASDF systems sometimes try to recursively load themselves a couple hundred
-times. (Though I've seen that even without loading portaCL, so may not be
-entirely my bug...)
+ * ASDF systems sometimes try to recursively load themselves a couple
+ hundred times. (Though I've seen that even without loading portaCL, so
+ may not be entirely my bug...)
+ * Constructs similar to the ones below will result in an incorrect
+ package-error:
+ (list #+(or) #+package:notexported a b c)
+ (list #+(or) #+notapackage:foo a b c)
+ NOTE: this bug is shared by the standard readers of at least SBCL,
+ Clisp, and Lispworks; but not by Allegro.
Mon Jul 20 01:31:17 UTC 2009 pix@kepibu.org
tagged VERSION 0.1.3
{
}
Mon Jul 20 01:31:10 UTC 2009 pix@kepibu.org
* Bump version
hunk ./portacl.asd 3
- :version "0.1.2"
+ :version "0.1.3"
Mon Jul 20 01:14:10 UTC 2009 pix@kepibu.org
* Improved feature readers
It turns out #+/#- also need to do their thing under *read-suppress*, rather
than simply skipping two forms.
E.g.,
'(#+(or) #+(not a b) a b c) => '(c)
'(#+(or) #+(and) a b c) => '(b c)
(Not that such constructions are practically portable anyway, but meh.)
Regardless, this fixes that as best I can. Unfortunately, it also forces
the normal package problems within feature expressions:
#+(or) #+(notapackage:foo) 'a => PACKAGE-ERROR
#+(or) #+(cl:notexported) 'a => PACKAGE-ERROR
This is, so far as I can tell, portably unavoidable. However, some (all?)
implementations /already/ have this problem, so at least it's nothing new.
{
hunk ./reader.lisp 3
+(define-condition suppressed-error (warning)
+ ((original-error :initarg :error)
+ (feature-expression :initarg :feature))
+ (:report (lambda (c s)
+ (format s "Suppressed an error while testing feature expansion ~S: ~A"
+ (slot-value c 'feature-expression)
+ (slot-value c 'original-error)))))
+
hunk ./reader.lisp 12
-(defun feature-reader (stream subchar arg)
+(defun feature-reader (stream fn arg)
hunk ./reader.lisp 14
- (declare (ignore arg))
+ (when (and arg (not *read-suppress*))
+ (error 'simple-error
+ :format-control "Numeric arg (~D) specified on reader conditional where none allowed."
+ :format-arguments (list arg)))
hunk ./reader.lisp 19
- (ecase subchar
- (#\+ (featurep form))
- (#\- (not (featurep form)))))
+ ;; from CLHS *read-suppress* <http://www.lispworks.com/documentation/HyperSpec/Body/v_rd_sup.htm>:
+ ;; Any standardized reader macro that is defined to read a following
+ ;; object or token will do so, but not signal an error if the object
+ ;; read is not of an appropriate type or syntax.
+ ;;
+ ;; I take that to mean errors thrown during the course of #'featurep
+ ;; should be suppressed. Some implementations differ.
+ (handler-bind
+ ((error (lambda (c)
+ (when *read-suppress*
+ (warn 'suppressed-error :feature form :error c)
+ (return-from feature-truth nil)))))
+ (funcall fn form)))
hunk ./reader.lisp 35
- (*read-suppress*
- (read-form stream)
- (read-form stream)
- (values))
hunk ./reader.lisp 36
- (let ((*package* (find-package :keyword)))
+ (let ((*package* (find-package :keyword))
+ ;; Incorrectly interns symbols, but we need more than just cl:nil :/
+ (*read-suppress* nil))
hunk ./reader.lisp 45
+(defun |#+-reader| (stream subchar arg)
+ (declare (ignore subchar))
+ (feature-reader stream #'featurep arg))
+
+(defun |#--reader| (stream subchar arg)
+ (declare (ignore subchar))
+ (feature-reader stream (complement #'featurep) arg))
+
hunk ./reader.lisp 54
- (set-dispatch-macro-character #\# #\+ #'feature-reader)
- (set-dispatch-macro-character #\# #\- #'feature-reader))
+ (set-dispatch-macro-character #\# #\+ #'|#+-reader|)
+ (set-dispatch-macro-character #\# #\- #'|#--reader|))
}
Mon Jul 20 01:09:25 UTC 2009 pix@kepibu.org
* Better reporting of undefined-feature-tests.
hunk ./feature-tests.lisp 15
- :format-control "Unknown feature test: ~a"
- :format-arguments (list feature))
+ :format-control "Unknown feature test: ~s"
+ :format-arguments (list (car feature)))
Sun Jul 19 13:58:44 UTC 2009 pix@kepibu.org
tagged VERSION 0.1.2
{
}
Sun Jul 19 13:58:33 UTC 2009 pix@kepibu.org
* Bump version
hunk ./portacl.asd 3
- :version "0.1"
+ :version "0.1.2"
Sun Jul 19 13:58:20 UTC 2009 pix@kepibu.org
* Use consp to avoid treating nil as a list
hunk ./feature-tests.lisp 23
- (if (listp feature)
+ (if (consp feature)
Sun Jul 19 12:31:43 UTC 2009 pix@kepibu.org
tagged VERSION 0.1.1
{
}