From dad5ec8cd88cd4b71c0f1b8b95eb276e6711c0dd Mon Sep 17 00:00:00 2001
From: Timotej Lazar <timotej.lazar@araneo.org>
Date: Thu, 8 May 2014 14:58:27 +0200
Subject: Use immutable values in queue
---
prolog/util.py | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/prolog/util.py b/prolog/util.py
index f5d1865..4826f86 100644
--- a/prolog/util.py
+++ b/prolog/util.py
@@ -41,14 +41,14 @@ def decompose(code):
for t in tokens:
if t[0] == 'SEMI':
if line != []:
- lines.append(line[:])
+ lines.append(tuple(line))
line = []
- lines.append([t])
+ lines.append((t,))
continue
if not parens:
if t[0] in ('PERIOD', 'FROM', 'COMMA', 'EOF'):
if line != []:
- lines.append(line[:])
+ lines.append(tuple(line))
line = []
if t[0] in ('PERIOD', 'EOF') and rule_start < len(lines):
rules.append((rule_start, len(lines)))
@@ -64,7 +64,7 @@ def decompose(code):
elif t[0] == 'RBRACE' and parens[-1] == 'LBRACE':
parens.pop()
line.append(t)
- return lines, rules
+ return tuple(lines), tuple(rules)
# pretty-print a list of rules
def compose(lines, rules):
--
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