init

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/macro.fnl b/lib/macro.fnl
new file mode 100644
index 0000000..f23b1fb
--- /dev/null
+++ b/lib/macro.fnl
@@ -0,0 +1,18 @@
+(fn map [f l]
+ `(icollect [i# v# (ipairs ,l)]
+    (,f i# v#)))
+
+(fn filter [f l]
+ `(icollect [i# v# (ipairs ,l)]
+    (if (,f i# v#)
+      v#
+      nil)))
+
+(fn reduce [f l s]
+ `(accumulate [r# ,s
+               i# v# (ipairs ,l)]
+    (,f i# v# r#)))
+
+{: map
+ : filter
+ : reduce}