Dear R users,

I need to match a string. It can be followed or preceded by whitespace or // or 
nothing.
How do I code it in R?

For example:
test <- c('AARSD11','AARSD1-','AARSD1//','AARSD1 //','//AARSD1');
grep('AARSD1(\\s*//*)',test);

should return 3,4,5 and 6.

Thanks in advance for your help.

Lin                                       
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