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Functions and CALL Routines

ANYDIGIT Function



Searches a character string for a digit, and returns the first position at which the digit is found.
Category: Character
Restriction: I18N Level 2

Syntax
Arguments
Details
Comparisons
Examples
See Also

Syntax

ANYDIGIT(string <,start>)


Arguments

string

is the character constant, variable, or expression to search.

start

is an optional integer that specifies the position at which the search should start and the direction in which to search.


Details

The ANYDIGIT function does not depend on the TRANTAB, ENCODING, or LOCALE options.

The ANYDIGIT function searches a string for the first occurrence of any character that is a digit. If such a character is found, ANYDIGIT returns the position in the string of that character. If no such character is found, ANYDIGIT returns a value of 0.

If you use only one argument, ANYDIGIT 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:

ANYDIGIT returns a value of zero when one of the following is true:


Comparisons

The ANYDIGIT function searches a character string for a digit. The NOTDIGIT function searches a character string for any character that is not a digit.


Examples

The following example uses the ANYDIGIT function to search for a character that is a digit.

data _null_;
   string='Next = _n_ + 12E3;'; 
   j=0;
   do until(j=0);
      j=anydigit(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;

The following lines are written to the SAS log:

   j=14 c=1
   j=15 c=2
   j=17 c=3
   That's all


See Also

Function:

NOTDIGIT Function

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