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Shayan2012
Quartz | Level 8

Hi all,

So, I am trying to search for some strings in a text, and I want to use the strings with macro variable so I be able to change the string. However, I am not sure how to use the macro variable in the index function.

For example,I am doing such thing:

%let str=William;

y=index(line,&str);

Is this the correct form since there are no ' ' around the variable &str? I am asking this because I see the SAS does not find the specified string in the text, although I know it is there.

I will be grateful if someone helps me.

Thanks a lot,

1 ACCEPTED SOLUTION

Accepted Solutions
jakarman
Barite | Level 11

When you are working with text-string in an SAS-macro environment look at the sas-macrofunctions (they all start with a %)

When you are using SAS-macro variables in a sas-datastep  and process those in a string make sure there quotes.   '

The macro-variable itself can contain  quotes

%let str='William';

y=index(line,&str);

or use the double quotes to indicate the & are sasmacro-variables to be resolved. (Single quotes will cause no resolving of macros)

%let str=William;

y=index(line,"&str");

---->-- ja karman --<-----

View solution in original post

3 REPLIES 3
stat_sas
Ammonite | Level 13

%let str=William;

y=index(line,"&str");

jakarman
Barite | Level 11

When you are working with text-string in an SAS-macro environment look at the sas-macrofunctions (they all start with a %)

When you are using SAS-macro variables in a sas-datastep  and process those in a string make sure there quotes.   '

The macro-variable itself can contain  quotes

%let str='William';

y=index(line,&str);

or use the double quotes to indicate the & are sasmacro-variables to be resolved. (Single quotes will cause no resolving of macros)

%let str=William;

y=index(line,"&str");

---->-- ja karman --<-----
Shayan2012
Quartz | Level 8

Thanks a lot guys!

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