|Functions and CALL Routines|
|Restriction:||I18N Level 2|
|Example 1: Searching a String for a White-Space Character|
|Example 2: Identifying Control Characters by Using the ANYSPACE Function|
The results of the ANYSPACE function depend directly on the translation table that is in effect (see TRANTAB System Option) and indirectly on the ENCODING System Option and the LOCALE System Option in SAS National Language Support (NLS): Reference Guide.
The ANYSPACE function searches a string for the first occurrence of any character that is a blank, horizontal tab, vertical tab, carriage return, line feed, or form feed. If such a character is found, ANYSPACE returns the position in the string of that character. If no such character is found, ANYSPACE returns a value of 0.
If you use only one argument, ANYSPACE begins the search at the beginning of the string. If you use two arguments, the absolute value of the second argument, start, specifies the position at which to begin the search. The direction in which to search is determined in the following way:
The ANYSPACE function searches a character string for the first occurrence of a character that is a blank, horizontal tab, vertical tab, carriage return, line feed, or form feed. The NOTSPACE function searches a character string for the first occurrence of a character that is not a blank, horizontal tab, vertical tab, carriage return, line feed, or form feed.
data _null_; string='Next = _n_ + 12E3;'; j=0; do until(j=0); j=anyspace(string,j+1); if j=0 then put +3 "That's all"; else do; c=substr(string,j,1); put +3 j= c=; end; end; run;
You can execute the following program to show the control characters that are identified by the ANYSPACE function.
data test; do dec=0 to 255; byte=byte(dec); hex=put(dec,hex2.); anyspace=anyspace(byte); output; end; proc print data=test; run;