Hi all I need to write code that checks that a variable names are separated correctly by a single commas & then a single space for example "DOMAIN, LBNAM, LBDAT".
So, for example, incorrect values I want to detect are:
DOMAIN , LBNAM, LBDAT
DOMAIN;LBNAM;LBDAT
DOMAIN,,LBNAM, LBDAT
DOMAIN LBNAM LBDAT
Thanks for your help
Hi @kalbo
Just check if the string is changed, i.e. s not equal to s2. The following code only outputs incorrect strings, but the comparison result could be assigned to an Error variable instead.
data a;
s = 'DOMAIN , LBNAM, LBDAT'; output;
s = 'DOMAIN;LBNAM;LBDAT'; output;
s = 'DOMAIN,,LBNAM, LBDAT'; output;
s = 'DOMAIN LBNAM LBDAT'; output;
s = 'DOMAIN, LBNAM, LBDAT'; output;
run;
data b (drop=s2); set a;
s2 = prxchange('s/(\w*)(\W*)(\w+)/$1, $3/',-1,trim(s));
if s ne s2 then output;
run;
Hi @kalbo
Try this.
data a;
s = 'DOMAIN , LBNAM, LBDAT'; output;
s = 'DOMAIN;LBNAM;LBDAT'; output;
s = 'DOMAIN,,LBNAM, LBDAT'; output;
s = 'DOMAIN LBNAM LBDAT'; output;
run;
data b; set a;
s2 = prxchange('s/(\w*)(\W*)(\w+)/$1, $3/',-1,trim(s));
run;
Hey thanks for your reply.
I tested the code and it fixes the issues. However, I wanted to detect when the issues occurred, rather than fix them. Would you be able to modify your code to do this?
thanks again.
Hi @kalbo
Just check if the string is changed, i.e. s not equal to s2. The following code only outputs incorrect strings, but the comparison result could be assigned to an Error variable instead.
data a;
s = 'DOMAIN , LBNAM, LBDAT'; output;
s = 'DOMAIN;LBNAM;LBDAT'; output;
s = 'DOMAIN,,LBNAM, LBDAT'; output;
s = 'DOMAIN LBNAM LBDAT'; output;
s = 'DOMAIN, LBNAM, LBDAT'; output;
run;
data b (drop=s2); set a;
s2 = prxchange('s/(\w*)(\W*)(\w+)/$1, $3/',-1,trim(s));
if s ne s2 then output;
run;
ok great! thanks!
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