How to select through regex all class designations in css file
Having a css file with css rules, I would like to select only the css class (i.e.) .tblGenFixed
, but not the css values for the rule (i.e.) opacity: 0.3
.
This is my regex:
/(\.([\w_]+))/g
This is my alternative solution but it doesn't work
/(?!\{)(\.([\w_]+))(?!\})/g
I gave an example in regex101 here https://regex101.com/r/gG4nN4/1
How to ignore CSS rules values?
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See: What characters are valid in CSS class names / selectors?
The value after the digit will have a digit. Fortunately, valid CSS class names cannot start with a number :)
Your regex must match dot first, then letter or - or _
! if you're looking for spaces before point, a value like .5 will match ...
Try the following: (\.([a-zA-Z_-]{1}[\w-_]+))
Edit :
See also: Regex to match CSS class name
-?[_a-zA-Z]+[_a-zA-Z0-9-]*
Relevant quote:
Basically, a name must start with an underscore (_), a hyphen (-), or a letter (az), followed by any number of hyphens, underscores, letters, or numbers. There is a catch: if the first character is a hyphen, the second character must be a letter or underscore, and the name must be at least 2 characters long.
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Depending on how your CSS is written, you might get what you are looking for by requiring spaces before the period:
\W/(\.([\w_]+))/g
Here's a fork of your regex .
Depending on what you are looking for, you can skip one of these capture groups:
\W\.([\w_]+)
I would also caution against parsing CSS with a regex without manually examining the results.
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