Teaches you regex in python by trying it out.
>>> only one command called compile allows you to compile a certain string
>>> any other input is treated as pattern to match
Python, 41 lines
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Copy to clipboard1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | #!/usr/bin/python
#
# tests regex with matches
# handy utility to learn regex in python
#(c)lostp, 2010 December
#version 0.0.1
import re
class AppModel:
pass
AppModel.regexstr = ''
AppModel.matchstr = ''
def main():
while(1):
line = raw_input("REGEX>")
l = line.split()
if (line[:7] == 'compile'):
try:
AppModel.regexstr = l[1]
AppModel.compiledobj = re.compile(AppModel.regexstr)
except:
print "%s is not a valid regex" % AppModel.regexstr
continue
else:
AppModel.matchstr = line
matches()
def matches():
if AppModel.compiledobj.match(AppModel.matchstr):
print "%s matches the pattern %s" % (AppModel.matchstr,AppModel.regexstr)
else:
print "%s does not match the pattern %s" % (AppModel.matchstr,AppModel.regexstr)
if __name__ == '__main__':
main()
|
Tags: regex
