Revert "builtin write"

This reverts commit d09b69aa794762d9556c5dae3df83512e41cf28d.
oops... revert "Revert "builtin write""

This reverts commit 76166fdcc8e8f0bf5dcd3b1e25e03e40a993aab2.
meant to revert this one, accidentally deleted SystemInputs... Revert "this functionality is in Parser.java"

This reverts commit fc8ccc9b7be72c3527d412b65a0967e68a1fcd24.