Question

I have this:

 var blockRegEx = new Regex("(proc sql;)(.*?)(quit;)", RegexOptions.IgnoreCase | 
      RegexOptions.Multiline); 

but it only works if the string is on a single line.

For example:

proc sql;
create table xtr as
select
    midsu_client_id,
    prodt_cd,
    confmt_ind,
    maj_diag_categ,
    mbr_num,
    pay_amt format=comma16.2
from cr_data.rptng
where &acctnum
and gl_postg between "&date_1" and "&date_2"
;
quit;

Answer 1

RegexOptions.MultiLine changes the behavior of the ‘^’ and ‘$’ characters:

Multiline mode. Changes the meaning of ^ and $ so they match at the
beginning and end, respectively, of any line, and not just the
beginning and end of the entire string.

Multiline is useful if you’re passing multiple lines at once into your regex search and you want to treat them as multiple lines (i.e. they all start with ‘^’ and end with ‘$’).

I think you want to try using RegexOptions.SingleLine instead:

Specifies single-line mode. Changes the meaning of the dot (.) so it
matches every character (instead of every character except \n).

SingleLine is useful if you’re passing multiple lines at once into your regex search and you want to treat them as thought they were actually all a single line.