>>>>> "ES" == Emre Sevinc <[EMAIL PROTECTED]> writes:
[...]
ES> Müsaadenizle şöyle demek istiyorum, "it's really set theory,
ES> and all mathematicians love set theory!" [1].
Tabii onu derken benim deneme icin yazdigim kodun kirilganligini
atliyor olabilirsin. Aman dikkat. Birinin otekinden buyuk olmasi seni
rahatsiz ettigi icin set-difference demisim herhalde, daha uygun set
fonksyonlari da var orada kullanilacak (belki bu vesileyle bakan cikar?).
[...]
ES> Ayrıca Edi Weitz ve diğerlerinin verdiği cevaplara da baktım,
ES> (apropos "special-p")'nin SBCL için ne döndürdüğünü de biraz
ES> inceledim. env diye bir şeyi de parametre olarak isteyen
ES> sb-walker:var-special-p diye bir şey döndürüyor.
Iste o 'env' evvelce bahsettigim environment oluyor. Boyle apropos ile
ic fonksyon bulmak oraya sordugum soruya uymuyor tabii, oyle yazilmis
kod tasinabilir (portable) degil cunku. Sbcl'in icindeki code-walker'da
kullanilan bir fonksyon bulmussun yukarida mesela.
Bu arada niye specialp '-'siz ama var-special-p '-'li diye merak edenlere:
http://www.cliki.net/Naming%20conventions
sayfasindan alintilayayim:
------
A functions that test for something involving its arguments is called
a predicate and usually ends in p or -p. CLTL2 explains the rationale
for each suffix:
By convention, the names of predicates usually end in the letter p
(which stands for "predicate"). Common Lisp uses a uniform
convention in hyphenating names of predicates. If the name of the
predicate is formed by adding a p to an existing name, such as the
name of a data type, a hyphen is placed before the final p if and
only if there is a hyphen in the existing name. For example,
number begets numberp but standard-char begets standard-char-p. On
the other hand, if the name of a predicate is formed by adding a
prefixing qualifier to the front of an existing predicate name,
the two names are joined with a hyphen and the presence or absence
of a hyphen before the final p is not changed. For example, the
predicate string-lessp has no hyphen before the p because it is
the string version of lessp (a MacLisp function that has been
renamed < in Common Lisp). The name string-less-p would
incorrectly imply that it is a predicate that tests for a kind of
object called a string-less, and the name stringlessp would
connote a predicate that tests whether something has no strings
(is "stringless")!
------
BM
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