I want to search for a list of words in a long text in a column (. If any word in the list exists in the column, the row be in the output dataset.   Please see my partial code.  I want to search for dog,cat and boat in a column called "Column"       WL = PRXPARSE("/dog|cat|boat/"); do i=1 to N;     position = PRXMATCH( WL ,Column(i));     if position ge 1 then do;            ALERT_TRIGGER_TXT= SUBSTR(Column(i),max(1,position-200),position-1)|| '*' ||                                     SUBSTR(A_TSC_SUSP_TXT(i),max(1,position),position+200) ;           output;     end; end;   Is there other text searching function that would make the program faster?    ... View more