Revision: 4007
Author: pekka.klarck
Date: Tue Aug 31 05:07:21 2010
Log: copyright, docstrings, reorg methods
http://code.google.com/p/robotframework/source/detail?r=4007
Modified:
/trunk/src/robot/utils/charwidth.py
=======================================
--- /trunk/src/robot/utils/charwidth.py Tue Aug 31 04:39:16 2010
+++ /trunk/src/robot/utils/charwidth.py Tue Aug 31 05:07:21 2010
@@ -1,5 +1,53 @@
-#TODO: Copyright
-east_asian_chars = [
+# Copyright 2008-2010 Nokia Siemens Networks Oyj
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+"""A module to handle different character widths on the console.
+
+Some East Asian characters have width of two on console, and combining
+characters themselves take no extra space.
+
+See issue 604 [1] for more details. It also contains
`generate_wild_chars.py`
+script that was originally used to create the East Asian wild character
map.
+Big thanks for xieyanbo for the script and the original patch.
+
+Note that Python's `unicodedata` module is not used here because importing
+it takes several seconds on Jython.
+
+[1] http://code.google.com/p/robotframework/issues/detail?id=604
+"""
+
+def get_char_width(char):
+ char = ord(char)
+ if _char_in_map(char, _COMBINING_CHARS):
+ return 0
+ if _char_in_map(char, _EAST_ASIAN_WILD_CHARS):
+ return 2
+ return 1
+
+def _char_in_map(char, map):
+ for begin, end in map:
+ if char < begin:
+ break
+ if begin <= char <= end:
+ return True
+ return False
+
+
+_COMBINING_CHARS = [(768,879)]
+
+_EAST_ASIAN_WILD_CHARS = [
(888, 889), (896, 899), (909, 909), (1316, 1328), (1368, 1368),
(1416, 1416), (1420, 1424), (1481, 1487), (1516, 1519),
(1526, 1535), (1541, 1541), (1565, 1565), (1631, 1631),
@@ -66,21 +114,3 @@
(65281, 65376), (65472, 65473), (65481, 65481), (65489, 65489),
(65497, 65497), (65502, 65511), (65520, 65528), (65535, 65535),
]
-
-combining_chars = [(768,879)]
-
-def _char_in_ranges(char, ranges):
- for begin, end in ranges:
- if char < begin:
- break
- if begin <= char <= end:
- return True
- return False
-
-def get_char_width(char):
- char = ord(char)
- if _char_in_ranges(char, combining_chars):
- return 0
- if _char_in_ranges(char, east_asian_chars):
- return 2
- return 1
