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gcode and float regex improvement

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This commit is contained in:
Peter Boin 2017-07-05 13:12:58 +10:00
parent dcac4fcec5
commit da772580e0
2 changed files with 46 additions and 3 deletions
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8
pygcode/words.py
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@ -4,9 +4,11 @@ import six
from .exceptions import GCodeBlockFormatError
FLOAT_REGEX = re.compile(r'^-?\d+(\.\d+)?')
FLOAT_REGEX = re.compile(r'^-?(\d+\.?\d*|\.\d+)') # testcase: ..tests.test_words.WordValueMatchTests.test_float
INT_REGEX = re.compile(r'^-?\d+')
POSITIVEINT_REGEX = re.compile(r'^\d+')
CODE_REGEX = re.compile(r'^\d+(\.\d)?') # similar
WORD_MAP = {
# Descriptions copied from wikipedia:
@ -47,7 +49,7 @@ WORD_MAP = {
# G-Codes
'G': {
'class': float,
'value_regex': re.compile(r'^\d+(\.\d)?'),
'value_regex': CODE_REGEX,
'description': "Address for preparatory commands",
},
# Tool Offsets
@ -81,7 +83,7 @@ WORD_MAP = {
# Miscellaneous Function
'M': {
'class': float,
'value_regex': re.compile(r'^\d+(\.\d)?'),
'value_regex': CODE_REGEX,
'description': "Miscellaneous function",
},
# Line Number

41
tests/test_words.py
View File

@ -40,3 +40,44 @@ class WordIterTests(unittest.TestCase):
self.assertEqual([w[3].letter, w[3].value], ['I', -0.11])
self.assertEqual([w[4].letter, w[4].value], ['J', -1.26])
self.assertEqual([w[5].letter, w[5].value], ['F', 70])
class WordValueMatchTests(unittest.TestCase):
def regex_assertions(self, regex, positive_list, negative_list):
# Assert all elements of positive_list match regex
for (value_str, expected_match) in positive_list:
match = regex.search(value_str)
self.assertIsNotNone(match, "failed to match '%s'" % value_str)
self.assertEqual(match.group(), expected_match)
# Asesrt all elements of negative_list do not match regex
for value_str in negative_list:
match = regex.search(value_str)
self.assertIsNone(match, "matched for '%s'" % value_str)
def test_float(self):
self.regex_assertions(
regex=words.FLOAT_REGEX,
positive_list=[
('1.2', '1.2'), ('1', '1'), ('200', '200'), ('0092', '0092'),
('1.', '1.'), ('.2', '.2'), ('-1.234', '-1.234'),
('-1.', '-1.'), ('-.289', '-.289'),
# error cases (only detectable in gcode context)
('1.2e3', '1.2'),
],
negative_list=['.', ' 1.2']
)
def test_code(self):
self.regex_assertions(
regex=words.CODE_REGEX,
positive_list=[
('1.2', '1.2'), ('1', '1'), ('10', '10'),
('02', '02'), ('02.3', '02.3'),
('1.', '1'), ('03 ', '03'),
# error cases (only detectable in gcode context)
('30.12', '30.1'),
],
negative_list=['.2', '.', ' 2']
)