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Diffstat (limited to 'locale/fr/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po')
-rw-r--r-- | locale/fr/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/locale/fr/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po b/locale/fr/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po deleted file mode 100644 index 925a00b..0000000 --- a/locale/fr/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po +++ /dev/null @@ -1,95 +0,0 @@ -# -msgid "" -msgstr "" - -msgid "title: Three-way conditional for number signs" -msgstr "" - -msgid "date: 2021-04-24 3" -msgstr "" - -msgid "layout: post" -msgstr "" - -msgid "lang: en" -msgstr "" - -msgid "ref: three-way-conditional-for-number-signs" -msgstr "" - -msgid "" -"A useful macro from Paul Graham's [On " -"Lisp](http://www.paulgraham.com/onlisptext.html) book:" -msgstr "" - -msgid "" -"(defmacro nif (expr pos zero neg)\n" -" (let ((g (gensym)))\n" -" `(let ((,g ,expr))\n" -" (cond ((plusp ,g) ,pos)\n" -" ((zerop ,g) ,zero)\n" -" (t ,neg)))))\n" -msgstr "" - -msgid "" -"The latest example I can think of is section 1.3.3 of [Structure and " -"Interpretation of Computer " -"Programs](https://mitpress.mit.edu/sites/default/files/sicp/index.html), " -"which I was reading recently:" -msgstr "" - -msgid "" -"(define (search f neg-point pos-point)\n" -" (let ((midpoint (average neg-point pos-point)))\n" -" (if (close-enough? neg-point post-point)\n" -" midpoint\n" -" (let ((test-value (f midpoint)))\n" -" (cond ((positive? test-value)\n" -" (search f neg-point midpoint))\n" -" ((negative? test-value)\n" -" (search f midpoint pos-point))\n" -" (else midpoint))))))\n" -msgstr "" - -msgid "" -"(define (search f neg-point pos-point)\n" -" (let ((midpoint (average neg-point pos-point)))\n" -" (if (close-enough? neg-point post-point)\n" -" midpoint\n" -" (nif (f midpoint)\n" -" (search f neg-point midpoint)\n" -" (midpoint)\n" -" (search f midpoint pos-point)))))\n" -msgstr "" - -msgid "" -"It also avoids `cond`'s extra clunky parentheses for grouping, which is " -"unnecessary but built-in." -msgstr "" - -msgid "" -"As a macro, I personally feel it tilts the balance towards expressivenes " -"despite its extra cognitive load toll." -msgstr "" - -msgid "" -"After I looked at this macro, I started seeing opportunities to using it in " -"many places, and yet I didn't see anyone else using it." -msgstr "" - -msgid "" -"Not that the book should introduce such macro this early, but I couldn't " -"avoid feeling bothered by not using the `nif` macro, which could even remove" -" the need for the intermediate `test-value` variable:" -msgstr "" - -#~ msgid "" -#~ "After I looked at this macro, I started seeing opportunities to using it in " -#~ "many places, and yet I didn't see anyonelse using it." -#~ msgstr "" - -#~ msgid "" -#~ "Not that the book should introduce such macro this early, but I couldn't " -#~ "avoid feeling bothered by not using a `nif` macro, which could even remove " -#~ "the need for the intermediate `test-value` variable:" -#~ msgstr "" |