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I have two example filename strings:
jquery.ui.min.js jquery.ui.min.css What regex can I use to only match the LAST dot? I don't need anything else, just the final dot.
A little more on what I'm doing. I'm using PHP's preg_split() function to split the filename into an array. The function deletes any matches and gives you an array with the elements between splits. I'm trying to get it to split jquery.ui.min.js into an array that looks like this:
array[0] = jquery.ui.min array[1] = js 
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in regex is a metacharacter, it is used to match any character. To match a literal dot in a raw Python string ( r"" or r'' ), you need to escape it, so r"\." Unless the regular expression is stored inside a regular python string, in which case you need to use a double \ ( \\ ) instead.
End of String or Line: $ The $ anchor specifies that the preceding pattern must occur at the end of the input string, or before \n at the end of the input string. If you use $ with the RegexOptions. Multiline option, the match can also occur at the end of a line.
Yes, the dot regex matches whitespace characters when using Python's re module.
If you're looking to extract the last part of the string, you'd need:
\.([^.]*)$ if you don't want the . or
(\.[^.]*)$ if you do.
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