September 2017 Update

Task/Metaprogramming/Zkl/metaprogramming-1.zkl

@@ -0,0 +1,3 @@
+#define name [0|1]
+#if [0|1|name]
+#else, #endif

Task/Metaprogramming/Zkl/metaprogramming-2.zkl

@@ -0,0 +1,3 @@
+//Full zkl functionality but limited access to the parse stream; only #defines
+#ifdef name
+#fcn name {code}

Task/Metaprogramming/Zkl/metaprogramming-3.zkl

@@ -0,0 +1,3 @@
+// Shove text into the parse stream
+#text name text
+#tokenize name, #tokenize f, #tokenize f(a)

Task/Metaprogramming/Zkl/metaprogramming-4.zkl

@@ -0,0 +1,3 @@
+#<<<#
+text, any text, inside #<<<# pairs is ignored
+#<<<#

Task/Metaprogramming/Zkl/metaprogramming-5.zkl

@@ -0,0 +1,8 @@
+string:=
+#<<<
+"here docs:
+all text in #<<< pairs is collected into one [long] line and passed
+verbatim to the tokenizer. Illustrated here as quoted (\") strings
+can not span lines.";
+#<<<
+println(string);  // contains newlines

Task/Metaprogramming/Zkl/metaprogramming-6.zkl

@@ -0,0 +1,4 @@
+const{ var _n=-1; var [proxy] N=fcn{ _n+=1 } }
+const X=N;     // → 0
+println(_n);   // → 2 code time is after const time
+const Y=N,Z=N; // → 1,2