https://communities.sas.com/t5/SAS-Programming/CALL-SCAN/m-p/803761#M316495 <P>CLL SCAN is probably the routine that gets called from the SCAN function. It can be useful to call explicitly when</P> <OL> <LI>You are scanning all the words in a list e.g.<BR /> <PRE><CODE class=" language-sas">do i=1 to countw(string); w=scan(string,i);</CODE></PRE> </LI> <LI>The list (the STRING variable in the example above) is long and performance is important. You can then change the code to something like<BR /> <PRE><CODE class=" language-sas">Pos=1; len=0; do while(1); call scan(String,1,Pos,len);<BR /> if pos=0 then leave; w=substr(String,Pos,len);<BR />&nbsp;&nbsp;pos=pos+len;</CODE></PRE> </LI> </OL> <P>The code is a bit more complicated, so it is only something you should use when performance really matters.</P> Thu, 24 Mar 2022 10:03:59 GMT s_lassen 2022-03-24T10:03:59Z https://communities.sas.com/t5/SAS-Programming/CALL-SCAN/m-p/803738#M316480 Hi,<BR />Can anyone give bref about CALL SCAN function Thu, 24 Mar 2022 05:56:03 GMT https://communities.sas.com/t5/SAS-Programming/CALL-SCAN/m-p/803738#M316480 PurushReddy 2022-03-24T05:56:03Z https://communities.sas.com/t5/SAS-Programming/CALL-SCAN/m-p/803740#M316481 <P><A href="https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.5/lefunctionsref/n0ecxfx00bn8i4n1vhh8up24ha6x.htm" target="_blank" rel="noopener">CALL SCAN <EM>Routine</EM></A>&nbsp;</P> Thu, 24 Mar 2022 06:29:19 GMT https://communities.sas.com/t5/SAS-Programming/CALL-SCAN/m-p/803740#M316481 Kurt_Bremser 2022-03-24T06:29:19Z https://communities.sas.com/t5/SAS-Programming/CALL-SCAN/m-p/803761#M316495 <P>CLL SCAN is probably the routine that gets called from the SCAN function. It can be useful to call explicitly when</P> <OL> <LI>You are scanning all the words in a list e.g.<BR /> <PRE><CODE class=" language-sas">do i=1 to countw(string); w=scan(string,i);</CODE></PRE> </LI> <LI>The list (the STRING variable in the example above) is long and performance is important. You can then change the code to something like<BR /> <PRE><CODE class=" language-sas">Pos=1; len=0; do while(1); call scan(String,1,Pos,len);<BR /> if pos=0 then leave; w=substr(String,Pos,len);<BR />&nbsp;&nbsp;pos=pos+len;</CODE></PRE> </LI> </OL> <P>The code is a bit more complicated, so it is only something you should use when performance really matters.</P> Thu, 24 Mar 2022 10:03:59 GMT https://communities.sas.com/t5/SAS-Programming/CALL-SCAN/m-p/803761#M316495 s_lassen 2022-03-24T10:03:59Z