I'm trying to make a regex to capture a string, but I don't know why the output puts the last character before the separator in another group
This is the regex I'm using:
(\w|\d|\s)*
This is the string I'm using for test:
Eleccion Nacional 2017
So in one group I get: Eleccion Nacional 2017
And in another I get: 7
Could anyone please explain to me why this is happening?
Welcome!
Here we might want to simply add a list of chars with a capturing group:
([A-Za-z0-9\s]+)
Of-course, we can add more boundaries to it, if necessary, such as:
([A-Za-z\s]+[0-9]{4})
Or we can try your original expression:
([\w\d\s]+)
jex.im also helps to visualize the expressions.
We can check in the visualizer how your original expression works:
The first result is the whole match: the pattern (\w|\d|\s)* matches all of the input Eleccion Nacional 2017. This first result isn't the result of a capture group. It is the whole character sequence matched by the entire pattern.
The second result is the value of the capture group, which contains only the final match of the parenthesized group which has the * applied.
word (\w)or adigit (\d)or awhitespace (\s)\w+(?:\s+\w+)*to prevent matching leading and trailing spaces as \w also matches \d