Initial data commit

Task/Binary-strings/Icon/binary-strings-2.icon

@@ -0,0 +1,16 @@
+procedure replace(s1, s2, s3)		#: string replacement
+   local result, i
+
+   result := ""
+   i := *s2
+   if i = 0 then fail			# would loop on empty string
+
+   s1 ? {
+      while result ||:= tab(find(s2)) do {
+         result ||:= s3
+         move(i)
+         }
+      return result || tab(0)
+      }
+
+end