From de7b441fe4ebd88fc19abbd6542cb8129f735ced Mon Sep 17 00:00:00 2001
From: Aleksander Sadikov
Date: Sun, 22 May 2016 20:37:28 +0200
Subject: Denotational semantics, part #1: tests and translations added.
---
.../prog_listswap_2/common.py | 38 ++++++++++++++++++++++
.../denotational_semantics/prog_listswap_2/en.py | 6 ++--
.../denotational_semantics/prog_listswap_2/sl.py | 18 ++++++++++
3 files changed, 60 insertions(+), 2 deletions(-)
create mode 100644 prolog/problems/denotational_semantics/prog_listswap_2/sl.py
(limited to 'prolog/problems/denotational_semantics/prog_listswap_2')
diff --git a/prolog/problems/denotational_semantics/prog_listswap_2/common.py b/prolog/problems/denotational_semantics/prog_listswap_2/common.py
index b3da01f..e4dd975 100644
--- a/prolog/problems/denotational_semantics/prog_listswap_2/common.py
+++ b/prolog/problems/denotational_semantics/prog_listswap_2/common.py
@@ -1,3 +1,10 @@
+from operator import itemgetter
+import socket
+
+import prolog.engine
+import prolog.util
+from server.hints import Hint, HintPopup
+
id = 175
number = 10
visible = True
@@ -25,3 +32,34 @@ instr --> [left].
instr --> [right].
instr --> [swap].
'''
+
+test_cases = [
+ ('findall(W, (W = [_], prog_listswap(W, [])), Words), Words == []',
+ [{}]),
+ ('setof(W, [A,B,C,D]^(W = [A,B,C,D], prog_listswap(W, [])), Words), length(Words, 9)',
+ [{}]),
+ ('prog_listswap([begin,right,right,swap,end], [])',
+ [{}]),
+ ('prog_listswap([begin,right,right,swap,left,swap,end], [])',
+ [{}]),
+]
+
+def test(code, aux_code):
+ n_correct = 0
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code+aux_code, timeout=1.0)
+ if engine_id is not None and 'error' not in map(itemgetter(0), output):
+ # Engine successfully created, and no syntax error in program.
+ for query, answers in test_cases:
+ if prolog.engine.check_answers(engine_id, query=query, answers=answers, timeout=1.0):
+ n_correct += 1
+ except socket.timeout:
+ pass
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
+ hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}]
+ return n_correct, len(test_cases), hints
+
diff --git a/prolog/problems/denotational_semantics/prog_listswap_2/en.py b/prolog/problems/denotational_semantics/prog_listswap_2/en.py
index 89907bd..7db473b 100644
--- a/prolog/problems/denotational_semantics/prog_listswap_2/en.py
+++ b/prolog/problems/denotational_semantics/prog_listswap_2/en.py
@@ -6,12 +6,14 @@ description = '''\
Write a DCG for manipulating list elements. The first symbol in every word is
[begin]
, followed by any sequence of "instruction" symbols from
the set {left
, right
, swap
}, and finally
-[end]
. The starting symbol should be named
+the symbol [end]
. The starting symbol should be named
prog_listswap
.
+This exercise has already been solved for you. Check how it works in the console.
+
-Example words: [begin,right,swap,end]
, [begin,right,left,end]
.
+Example words: [begin,right,swap,end]
, [begin,right,right,swap,left,swap,end]
.
'''
diff --git a/prolog/problems/denotational_semantics/prog_listswap_2/sl.py b/prolog/problems/denotational_semantics/prog_listswap_2/sl.py
new file mode 100644
index 0000000..0ed8e4d
--- /dev/null
+++ b/prolog/problems/denotational_semantics/prog_listswap_2/sl.py
@@ -0,0 +1,18 @@
+name = 'prog_listswap/2'
+slug = 'jezik za rokovanje s seznami'
+
+description = '''\
+
+Napiši DCG za rokovanje s seznami. Prvi simbol vsake besede je [begin]
, temu pa sledi
+poljubno zaporedje "ukazov" iz nabora {left
, right
, swap
},
+na koncu pa je simbol [end]
. Začetni nekončni simbol naj se imenuje prog_listswap
.
+
+
+Ta naloga je že rešena. Preveri kako deluje v konzoli.
+
+
+Primeri veljavnih besed: [begin,right,swap,end]
, [begin,right,right,swap,left,swap,end]
.
+
+'''
+
+hint = {}
--
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