I need to change a string that looks like this: chad.floor = 3.5 to: chad_floor = 3.5
Only the . that is between letters is replaced, not the one with numbers.
I've looked and researched and I keep coming up with this, which does not work:
("[\w*].[\w*]", "_", "chad.floor = 3.45")
This results in: ___r = _5
Which, from what I can tell, is just replacing everything in the match.
How can I modify my RE to keep all the text, and only replace the . that is between letters but not numbers?
Try:
(?<=[a-zA-Z])\.(?=[a-zA-Z])
and replacing with:
_
See: regex101
Explanation
(?<= ... ): Look in front of your dot
[a-zA-Z]: and confirm a letter is preceeding it´.\.: Then match the literal dot.(?=[a-zA-Z]): Then confirm it that a letter is succeeding it.Replace
_: Replace the dot with an underscoreComment on your attempt:
[\w*] does not at all do what I guess you think it does:
\w matches roughly [0-9a-zA-Z_] and not only letters.[ X* ] does not mean any number of "X" but rather adds the literal asterix to the character class.[\w] is the same as \w.[a-zA-Z]*\.[a-zA-Z]* would also match the dot in "1.2" since the asterix could match 0 occurences of letters.