src/content/: Update all files left to asciidoc

1 files changed, 24 insertions, 29 deletions

diff --git a/src/content/tils/2021/04/24/scm-nif.adoc b/src/content/tils/2021/04/24/scm-nif.adoc
index f53451b..f70e533 100644
--- a/src/content/tils/2021/04/24/scm-nif.adoc
+++ b/src/content/tils/2021/04/24/scm-nif.adoc
@@ -1,35 +1,28 @@
----
+= Three-way conditional for number signs on Lisp
 
-title: Three-way conditional for number signs on Lisp
+:on-lisp: https://www.paulgraham.com/onlisptext.html
+:sicp: https://mitpress.mit.edu/sites/default/files/sicp/index.html
 
-date: 2021-04-24 3
+A useful macro from Paul Graham's {on-lisp}[On Lisp] book:
 
-updated_at: 2021-08-14
-
-layout: post
-
-lang: en
-
-ref: three-way-conditional-for-number-signs-on-lisp
-
----
-
-A useful macro from Paul Graham's [On Lisp][on-lisp] book:
-
-```lisp
+[source,lisp]
+----
 (defmacro nif (expr pos zero neg)
   (let ((g (gensym)))
     `(let ((,g ,expr))
        (cond ((plusp ,g) ,pos)
              ((zerop ,g) ,zero)
              (t ,neg)))))
-```
+----
 
-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.
+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.
 
-The latest example I can think of is section 1.3.3 of [Structure and Interpretation of Computer Programs][sicp], which I was reading recently:
+The latest example I can think of is section 1.3.3 of {sicp}[Structure and
+Interpretation of Computer Programs], which I was reading recently:
 
-```scheme
+[source,scheme]
+----
 (define (search f neg-point pos-point)
   (let ((midpoint (average neg-point pos-point)))
     (if (close-enough? neg-point post-point)
@@ -40,11 +33,14 @@ The latest example I can think of is section 1.3.3 of [Structure and Interpretat
                 ((negative? test-value)
                  (search f midpoint pos-point))
                 (else midpoint))))))
-```
+----
 
-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:
+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:
 
-```scheme
+[source,scheme]
+----
 (define (search f neg-point pos-point)
   (let ((midpoint (average neg-point pos-point)))
     (if (close-enough? neg-point post-point)
@@ -53,11 +49,10 @@ Not that the book should introduce such macro this early, but I couldn't avoid f
              (search f neg-point midpoint)
              (midpoint)
              (search f midpoint pos-point)))))
-```
-
-It also avoids `cond`'s extra clunky parentheses for grouping, which is unnecessary but built-in.
+----
 
-As a macro, I personally feel it tilts the balance towards expressivenes despite its extra cognitive load toll.
+It also avoids `cond`'s extra clunky parentheses for grouping, which is
+unnecessary but built-in.
 
-[on-lisp]: http://www.paulgraham.com/onlisptext.html
-[sicp]: https://mitpress.mit.edu/sites/default/files/sicp/index.html
+As a macro, I personally feel it tilts the balance towards expressivenes despite
+its extra cognitive load toll.