c# - StringSplitOptions.None doesn't work as expected -

i'm trying convert string string[] using 2 delimiters , want delimiters null strings in resultant string[] nodes

string source = "(('co.in'.bit = c) or ('co.in'.bit = v))"; char[] delimiters = new char[] { '(', ')' }; string[] parts = source.split(delimiters,stringsplitoptions.none); 

the expected result string[] parts is:

[null] [null] 'co.in'.bit = c [null] ' or ' [null] 'co.in'.bit = v [null] [null] 

but result obtained is:

[null] [null] 'co.in'.bit = c ' or ' 'co.in'.bit = v [null] [null] 

i miss 2 nodes , don't understand why.

can me please?

your assumption null values delimiters wrong. empty string if there no text between 2 delimiters.

the first 2 empty strings ([null] in post) appear because there no text between start of string , first delimiter , no text between first , second delimiter.

but c) or ('co (part of string) can split c, or , 'co without empty string between 2 delimiters.