Use substr to intercept characters

Recent data cleanup, found that there are many special characters, if you want to intercept a string of characters can be used in the following ways:

/* intercept the characters in front of the brackets */data _null_;x= "AAAFAFSADFGADGFA (asdasgs..); * Define the string */i=find (x, ' (');/* OK (position */j=length (x); * * Long-term substr of strings (x,i,j-i) = ""; * * Intercept the characters from I to j-i, and assign the value to the empty put X; * * output xrun; output Result: AAAFAFSADFGADGFA

Involved in the use of the Find (), substr () function, if you want to clear the English characters in the special character can be used with the compress () function, clear the special characters in the Chinese character can be used kcompress ()

Use substr to intercept characters