Caché ObjectScript Reference - InterSystems Documentation

$ASCII$ASCIIReturns the character code value for an expression.$ASCII(expression,position)$A(expression,position)ParametersexpressionpositionThe character to be converted.Optional — The position of a character within a character string.Description$ASCII returns the character code value for a single character specified in expression. Thischaracter can be an 8-bit (ASCII) character or a 16-bit (Unicode) character.The expression may evaluate to a single character or to a string of characters. If expressionevaluates to a character string, you include the optional position parameter to indicate whichcharacter you want to convert.ParametersexpressionThe expression can be specified as the name of a variable, a numeric value, a string literal,or any valid Caché ObjectScript expression. If expression yields more than one character,use position to select the desired character. If you omit position for a character string, $ASCIIreturns the numeric code for the first character. $ASCII returns -1 if the expression evaluatesto a null string.positionThe position must be specified as a non-zero positive integer. It may be signed or unsigned.You can use a non-integer numeric value in position; however, Caché ignores the decimalportion and only considers the integer portion of the numeric value. If you do not includeposition, $ASCII returns the numeric value of the first character in expression. $ASCIIreturns -1 if the integer value of position is larger than the number of characters in expressionor less than 1.ExamplesThe following example returns 87, the ASCII decimal value of the character W.Caché ObjectScript Reference 179