BASIC Functions

The following BASIC functions are presented:

@() Function	Provides a standard means of performing control functions on a wide array of terminals.
abs() Function	Returns the absolute (positive) portion of the integer number derived from the given numeric expression.
access() Function	Provides data about the AQL or Update Processor environments when the program is called from a dictionary.
alpha() Function	Evaluates the expression and returns 1 (true) if every character in the string is alphabetical (that is, a—z upper and lowercase), or 0 (false) if any character is nonalphabetical.
ascii() Function	Converts a string of EBCDIC-encoded characters into their equivalent ASCII values.
assigned() Function	Determines if the variable has been assigned a value.
change() Function	searches a string expression for the search string and then replaces the string with a specified replacement string.
char() Function	Converts a number between 0 and 255 to its corresponding ASCII character equivalent.
col1() Function	Returns the numeric column position of the character immediately preceding the substring retrieved in the most recently executed field() function.
col2() Function	Returns the numeric column position of the character following the substring retrieved in the most recently executed field() function.
convert() Function	Searches a given variable and replaces each occurrence of a character by another.
cos() Function	Calculates the trigonometric cosine of an angle of a specified numeric expression in the range 0 to 360 degrees.
count() Function	Returns the number of occurrences of string expressions within another string expression.
date() Function	Returns the current system date in internal format as an integer number representing the number of days that have elapsed since December 31, 1967 (day 0 on the D3 calendar).
dcount() Function	Returns the number of occurrences of the delimiter specified in a spring expression within another spring expression, plus one.
delete() Function	Removes a specific attribute, value, or subvalue from a dimensioned or dynamic array.
dquote() Function	Extracts a double-quoted string from a specified string expression.
dtx() Function	Converts a given decimal number to its corresponding hexadecimal equivalent. The number is first converted to an integer by truncating the fractional part.
ebcdic() Function	Converts a string of ASCII-encoded characters into their equivalent EBCDIC values.
ereplace() Function	Searches a string expression for the search string and then replaces the search string with a specified replacement string for the amount of specified occurrences.
error() Function	Retrieves the TCL command used to activate the program and loads it into a specified variable.
exchange() Function	Replaces the characters specified in a string expression with the characters specified in another specified string expression.
exp() Function	Returns the exponential of a numeric expression, that is, base e, which is 2.718281828 rounded to precision to the power of the numeric expression.
extract() Function	Retrieves a specific attribute, value, or subvalue from a dimensioned or dynamic array.
field() Function	Returns a substring from a string expression, by specifying a delimiter and the desired occurrence.
fmt() Function	Identical to performing a FlashBASIC or BASIC mask.
fold() Function	Folds a string expression into a string of a given length.
iconv() Function	Converts a value from its external format to its internal equivalent, according to the processing code being applied.
index() Function	Searches through a given string expression for the occurrence of a specified character or substring and, if found, returns the numeric position where the nth occurrence of the substring begins.
inmat() Function	Returns information about arrays.
insert() Function	Inserts the element referenced by a specified string expression into a specific attribute, value, or subvalue location in a specified dynamic array.
int() Function	Returns the numeric integer equivalent from a given expression.
len() Function	Returns the length of a string expression.
ln() Function	Returns the natural logarithm (base e, which is 2.718281828 rounded to precision) of a given numeric expression.
locate() Function	A variant of the locate statement. See the locate Statement documentation.
maximum() Function	Returns the maximum of a list of numbers delimited by attribute, value, or subvalue marks.
minimum() Function	Returns the minimum of a list of numbers delimited by attribute, value, or subvalue marks.
mod() Function	Returns the remainder portion of the result of dividing one number by another.
not() Function	Returns the logical inverse of the normal outcome of true and false generated by a logical expression.
num() Function	Evaluates an expression and returns 1 (true) if it is a decimal numeric. Otherwise, it returns 0, if the expression contains any nonnumeric characters.
occurs() Function	Searches a string for attributes or values that occur consecutively.
oconv() Function	Converts a value from its internal format to its external equivalent, according to the processing code being applied.
oconvs() Function	Performs conversions within an eval expression.
pwr() Function	Raises a value contained in an expression to the power of the value of a second expression.
rem() Function	Returns the remainder portion of the result of dividing one number by another.
replace() Function	Inserts or replaces a specific attribute, value, or subvalue in the string referenced by a specified dynamic array expression with the value referenced in a specified string expression.
rnd() Function	Generates a random number.
scan() Function	Searches through a specified string expression for the first occurrence of up to three user-definable characters specified by search delimiters in addition to the system delimiters value, subvalue, and attribute.
sentence() Function	Identical to performing a tclread statement. It returns the TCL command used to activate the program into a variable.
seq() Function	Converts any ASCII character to its corresponding numeric equivalent in the range 0 through 255.
sin() Function	Calculates the sine of an angle specified in degrees.
sort() Function	Sorts an attribute or value mark delimited string expression in ascending order.
soundex() Function	Returns the 4-digit soundex code for a phonetic string expression.
space() Function	Generates a string of spaces of a length equal to the value of the numeric expression.
sqrt() Function	Calculates the square root of a given numeric expression.
squote() Function	Extracts a single-quoted string from a specified string expression.
status() Function	Returns the value of system(0).
str() Function	Repeats a specified string expression the number of times specified in a specified numeric expression.
sum() Function	Returns the sum of a list of numbers delimited by attribute, value, or subvalue marks.
summation() Function	Returns the sum of a list of numbers delimited by attribute, value, or subvalue marks.
swap() Function	Searches a string expression for the search string and then replaces the string with another specified string for a specified number of occurrences.
system() Function	Provides an interface to a number of system variables, depending upon the requested numeric argument.
tan() Function	Calculates the trigonometric tangent of the angle specified in degrees.
time() Function	Returns the current system time in its internal format, representing the number of seconds past midnight.
timedate() Function	Returns the current system time and date in external format (hh:mm:ss dd mmm yyyy).
trans() Function	Performs translates within an eval expression.
trim() Function	Removes leading, trailing, and/or redundant characters from a string.
trimb() Function	Removes trailing spaces from a string.
trimf() Function	Removes leading spaces from a string.
xtd() Function	Converts an expression from its hexadecimal format into its equivalent decimal format.