Created
June 27, 2018 08:25
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regexp for a semver compliant pre-release
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# coding=utf8 | |
# the above tag defines encoding for this document and is for Python 2.x compatibility | |
import re | |
regex = r"([0-9]+)\.([0-9]+)\.([0-9]+)(?:-([0-9alpha|beta|rc.-]+))?(?:\+([0-9a-zA-Z.-]+))?" | |
test_str = ("0.0.1\n" | |
"0.1.0-rc.3\n" | |
"0.1.0-alpha.12\n" | |
"1.1.1\n" | |
"0.5.0-beta.3+dfashfjlkjhflksah\n" | |
"0.5.0-alpha\n") | |
matches = re.finditer(regex, test_str, re.MULTILINE) | |
for matchNum, match in enumerate(matches): | |
matchNum = matchNum + 1 | |
print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) | |
for groupNum in range(0, len(match.groups())): | |
groupNum = groupNum + 1 | |
print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) | |
# Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution. |
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