data test1;
RegEx_ID = PRXPARSE ('/(百度移动客服|今日头条\s?53|神马竞价\s?53|手机APP|自媒体|搜狗竞价留言)/');
set test;
call prxsubstr(RegEx_ID,remarks,position,length);
if position ^=0 then match=substr(remarks, position, length);
run;
data test1;
RegEx_ID = PRXPARSE ('/(百度移动客服|今日头条\s?53|神马竞价\s?53|手机APP|自媒体|搜狗竞价留言)/');
set test;
call prxsubstr(RegEx_ID,remarks,position,length);
if position ^=0 then match=substr(remarks, position, length);
run;