I need to match lists like:
a = 9, b=5 , c = 15
The values can be also of type double, string, char and boolean, or a previous variable (for example, a=b). I've tried to arrange the following regular expression
([A-Za-z0-9](=)?(,)?)|((=)?,\s*\d+)*
but no success achieved so far. Any help would be appreciated.
You can use this regex ([a-zA-Z0-9]+\s*=\s*[a-zA-Z0-9]+) :
matches :
a = 9
b=5
c = 15
a=b
b= true
s = false
Edit
If you want to matche a list like this for example :
a = 9 , b=5 , c = 15 , a=b , b= true , s = false
then you can use a regex like this ^([a-zA-Z0-9]+\s*=\s*[a-zA-Z0-9]+\s*,?\s*)*
in jave you can use :
boolean m = "a = 9 , b=5 , c = 15 , a=b , b= true , s = false".
matches("^([a-zA-Z0-9]+\\s*=\\s*[a-zA-Z0-9]+\\s*,?\\s*)*");//true
a = 1, b=3, according to their regex.Try this:
Solution 1
(\s*[A-Za-z0-9]\s*=\s*\S*(,)?)+
If you want to capture all the elements in the list then:
Solution 2
((\s*[A-Za-z0-9]\s*=\s*\S*(,)?)+)
YCF_L solutions looks good also except for one small variation:
^([a-zA-Z0-9]+\s*=\s* [a-zA-Z0-9]+\s*,?\s*)*
The second part ignores the fact that you could have a double value. It will still match, but if you were to capture the values as in Solution 2 above but using the YCF_L solution then the decimal portion will be dropped.
Here is great link on capturing repeated groups:
