Programmer's Guide to the Zeno Interpreter

The special symbols, key words, standard identifiers, and variable limits used in the language are shown in this appendix.

Table B1. Special symbols

    :=  +   -   *   /   ^   &   :   ,   .   ...

    =   ~=  <   <=  >   >=  (   )   \   %

Table B2. Limits

   maximum value of an integer              2147483647
   minimum value of an integer             -2147483648

   maximum magnitude of a real number    1.797693e+308
   minimum magnitude of a real number    2.225074e-308

   maximum value of base 10 exponent               308
   minimum value of base 10 exponent              -307

   maximum string length                           255

   maximum array size in bytes                   32767

Table B3. Definitions of key words and standard identifiers

This section contains definitions and explains the usage of key words and standard identifiers used in the Zeno programming language. In the table below, a word in bold is a keyword of the language; a word not in bold is an identifier of a standard function or procedure. These words cannot be used as names for data or subprograms in your programs.

and	arccos	arcsin	arctan	arctanxy
array	assert
boolean
case	ceil	char	chr	close
const	continue	cos	cosh
dateday	datemonth	datetime	dateyear	dayofweek
decr	decreasing	div	do
else	elsif	end	enum	eof
erealstr	exit	exp
false	floor	for	frealstr	function
get	getexp	goto
if	incr	index	int	intstr
label	ln	localtime	log10
mod
nand	nor	not
of	open	or	ord
procedure	program	put
rand	randint	randomize	randseed	real
realstr	record	repeat	return	round
setexp	sign	sin	sinh	sqrt
string	strint	strlen	strreal	systemtime
tab	tan	tanh	then	timehour
timeminute	timemsecs	timesecond	true	type
until
value	var
when	while
xor