Tools, FAQ, Tutorials:
re.search() - Search for First Match
How to search for the first match of a regular expression using re.search()?
✍: FYIcenter.com
The re.search() function allows you to search for the first match of a given regular expression in a target string.
import re m = re.search(pattern, string, flags=0) Where: pattern is the regular expression string is the target string m is None or a Match object
If a match is found, m is the Match object representing the match result, which supports the following properties and functions:
import re m = re.search(pattern, string, flags=0) m.re # the regular expression m.string # the target string m.group() # the matched substring m.group(1) # the first matched group m.group(2) # the second matched group ... m.groups() # all matched groups as tuple m.start() # the starting position of the match m.start(1) # the starting position of the first matched group m.start(2) # the starting position of the second matched group ... m.end() # the ending position of the match m.end(1) # the ending position of the first matched group m.end(2) # the ending position of the second matched group ...
Here is a Python example that shows you how to use the re.search() function and the match result object:
>>> import re >>> s = "Hello perl.org, php.net, and python.org!" >>> p = "(\\w+)\\.(\\w+)" >>> print(p) (\w+)\.(\w+) >>> m = re.search(p,s) >>> print(m) <_sre.SRE_Match object; span=(6, 14), match='perl.org'> >>> m.group() 'perl.org' >>> m.group(1) 'perl' >>> m.group(2) 'org' >>> m.groups() ('perl', 'org') >>> m.start() 6 >>> m.end() 14
⇒ re.findall() - Find All Matches
2018-10-19, 3032🔥, 0💬
Popular Posts:
How to Build my "sleep" Docker image from the Alpine image? I want the container to sleep for 10 hou...
Can You Add Values to an Array without Keys in PHP? Can You Add Values to an Array with a Key? The a...
How to add request query string Parameters to my Azure API operation to make it more user friendly? ...
How to use the JSON to XML Conversion Tool at utilities-online.info? If you want to try the JSON to ...
Where to find tutorials on OpenID? Here is a large collection of tutorials to answer many frequently...