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diff --git a/locale/pt/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po b/locale/pt/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po
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--- a/locale/pt/LC_MESSAGES/_tils/2021-04-24-three-way-conditional-for-number-signs.po
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-#
-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 ""