initial musings

2 files changed, 33 insertions, 0 deletions

diff --git a/examples/if.lyn b/examples/if.lyn
new file mode 100644
index 0000000..294a490
--- /dev/null
+++ b/examples/if.lyn
@@ -0,0 +1,15 @@
+# `if` macro, think of it as a statement I guess?
+# else is used by the `if` command in C, presumably?
+if {< i 10} {
+	println "a"
+} {< i 20} {
+	println "b"
+} else {
+	println "c"
+}
+
+# `if` procedure, think of it as expr-if in other languages I guess
+# note that all arguments get evaluated here, so if you have a slow function in
+# one branch you should probably prefer `if` statements
+
+let x (do-if (< i 10) "a" (< i 20) "b" else "c")
diff --git a/examples/sum.lyn b/examples/sum.lyn
new file mode 100644
index 0000000..a4dcf61
--- /dev/null
+++ b/examples/sum.lyn
@@ -0,0 +1,18 @@
+syntax for {init cond post body} {
+	eval init
+	while (eval cond) {
+		eval body
+		eval post
+	}
+}
+
+def sum {n} {
+	require n int
+	let s 0
+	for {let i 0} {< i n} {set i (+ i 1)} {
+		set s (+ s i)
+	}
+	return s
+}
+
+println (sum 1000000)