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I have a Perl regular expression (shown here, though understanding the whole thing isn't hopefully necessary to answering this question) that contains the \G metacharacter. I'd like to translate it into Python, but Python doesn't appear to support \G. What can I do?
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Python offers two different primitive operations based on regular expressions: match checks for a match only at the beginning of the string, while search checks for a match anywhere in the string (this is what Perl does by default).
fullmatch(). This method checks if the whole string matches the regular expression pattern or not. If it does then it returns 1, otherwise a 0.
The Python "re" module provides regular expression support.
Regular Expressions, also known as “regex” or “regexp”, are used to match strings of text such as particular characters, words, or patterns of characters. It means that we can match and extract any string pattern from the text with the help of regular expressions.
Try these:
import re
re.sub()
re.findall()
re.finditer()
for example:
# Finds all words of length 3 or 4
s = "the quick brown fox jumped over the lazy dogs."
print re.findall(r'\b\w{3,4}\b', s)
# prints ['the','fox','over','the','lazy','dogs']
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