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authorGeorg Brandl <georg@python.org>2010-12-30 17:22:33 (GMT)
committerGeorg Brandl <georg@python.org>2010-12-30 17:22:33 (GMT)
commit4cf83f4d128bd40ebe3b6e59ced4895f554d18de (patch)
treeccc6e4c3e03a711c45f4badf811314231d646d95 /Demo/threads/fcmp.py
parentd1fc34d563a9fd06a78226b1bb4e56286c70e035 (diff)
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Remove some of the old demos. (Put a few somewhere else.)
Diffstat (limited to 'Demo/threads/fcmp.py')
-rw-r--r--Demo/threads/fcmp.py64
1 files changed, 0 insertions, 64 deletions
diff --git a/Demo/threads/fcmp.py b/Demo/threads/fcmp.py
deleted file mode 100644
index bc2e3ed..0000000
--- a/Demo/threads/fcmp.py
+++ /dev/null
@@ -1,64 +0,0 @@
-# Coroutine example: controlling multiple instances of a single function
-
-from Coroutine import *
-
-# fringe visits a nested list in inorder, and detaches for each non-list
-# element; raises EarlyExit after the list is exhausted
-def fringe(co, list):
- for x in list:
- if type(x) is type([]):
- fringe(co, x)
- else:
- co.back(x)
-
-def printinorder(list):
- co = Coroutine()
- f = co.create(fringe, co, list)
- try:
- while 1:
- print(co.tran(f), end=' ')
- except EarlyExit:
- pass
- print()
-
-printinorder([1,2,3]) # 1 2 3
-printinorder([[[[1,[2]]],3]]) # ditto
-x = [0, 1, [2, [3]], [4,5], [[[6]]] ]
-printinorder(x) # 0 1 2 3 4 5 6
-
-# fcmp lexicographically compares the fringes of two nested lists
-def fcmp(l1, l2):
- co1 = Coroutine(); f1 = co1.create(fringe, co1, l1)
- co2 = Coroutine(); f2 = co2.create(fringe, co2, l2)
- while 1:
- try:
- v1 = co1.tran(f1)
- except EarlyExit:
- try:
- v2 = co2.tran(f2)
- except EarlyExit:
- return 0
- co2.kill()
- return -1
- try:
- v2 = co2.tran(f2)
- except EarlyExit:
- co1.kill()
- return 1
- if v1 != v2:
- co1.kill(); co2.kill()
- return cmp(v1,v2)
-
-print(fcmp(range(7), x)) # 0; fringes are equal
-print(fcmp(range(6), x)) # -1; 1st list ends early
-print(fcmp(x, range(6))) # 1; 2nd list ends early
-print(fcmp(range(8), x)) # 1; 2nd list ends early
-print(fcmp(x, range(8))) # -1; 1st list ends early
-print(fcmp([1,[[2],8]],
- [[[1],2],8])) # 0
-print(fcmp([1,[[3],8]],
- [[[1],2],8])) # 1
-print(fcmp([1,[[2],8]],
- [[[1],2],9])) # -1
-
-# end of example