From 5f33785abbd5a337eec0d5ebcd19349d0d7c3721 Mon Sep 17 00:00:00 2001 From: Chris Barker Date: Sat, 18 Dec 2010 14:16:40 -0500 Subject: [PATCH] edits --- assignment10.mdwn | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/assignment10.mdwn b/assignment10.mdwn index c1a84d3b..ec3b8c14 100644 --- a/assignment10.mdwn +++ b/assignment10.mdwn @@ -112,7 +112,21 @@ (insert-co new before after (cdr lst) (lambda (new-lst lefts rights) ________)))))) -6. Go back to the "abSd" problem we presented in [[From List Zippers to Continuations]]. Consider the "tc" solution which uses explicitly passed continuations. Try to reimplement this using reset and shift instead of having an explicit `k` argument. This will likely be challenging but rewarding. The notes on [[CPS and Continuation Operators]], especially the examples at the end, should be helpful. We are of course also glad to help you out. +6. Go back to the "abSd" problem we presented in [[From List +Zippers to Continuations]]. Consider the "tc" solution which uses +explicitly passed continuations. Try to reimplement this using reset +and shift instead of having an explicit `k` argument. This will likely +be challenging but rewarding. The notes on [[CPS and Continuation +Operators]], especially the examples at the end, should be helpful. We +are of course also glad to help you out. + + Consider adding a special symbol `'#'` (pronounced 'prompt') to the + mini-language such that + + `"ab#cdSef"` ~~> `"abcdcdef"` + + That is, the rule for `'S'` is to copy the preceding string, but + only up to the closest enclosing `'#'` symbol. 7. Can you reimplement your solution to [[assignment9]] using reset and shift? -- 2.11.0