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+--- Thread: Coding understanding help (/thread-19885.html)
Coding understanding help - srikanth - Jul-18-2019
Hello Hi, I am new to python and i am learning from automating the boring stuff.
In this program, why and how did he choose groups[1],groups[3],groups[5] and groups[8]. can you please explain the program briefly, especially the for loop part for finding mobile numbers.
import re, pyperclip
phonenumber= re.compile(r'''(
(\d{3}|\(\d{3}\))? # area code
(\s|-|\.)? # separator
\d{3} # first 3 digits
(\s|-|\.) # separator
\d{4} # last 4 digits
(\s*(ext|x|ext.)\s*\d{2,5})? # extension
)''', re.VERBOSE)
emailids=re.compile(r'''(
[a-zA-Z0-9-.%+]+ #username
@ #@
[a-zA-Z0-9.-]+
(\.[a-zA-Z]{2,4}))''',re.VERBOSE)
text=str(pyperclip.paste())
matches=[]
for groups in phonenumber.findall(text):
phonenum = '-'.join([groups[1],groups[3],groups[5]])
print(groups)
if groups[8]!='':
phonenum +=' x'+groups[8]
matches.append(phonenum)
for groups in emailids.findall(text):
matches.append(groups[0])
if len(matches)>0:
pyperclip.copy('\n'.join(matches))
print('copied to clipboard')
print('\n'.join(matches))
else:
print('no phone number and email ids are found')Thanks in Advance
RE: Coding understanding help - Larz60+ - Jul-19-2019
I believe that this line:
text=str(pyperclip.paste())copies the clipboard text into variable text.
Then groups is what is found using phonenumber regex
groups[1], groups[2], groups[5] are the 2nd, 3rd and 6th positions in the result of regex find (zero based)