Sub-expressions should be wrapped in brackets.
eg. ("myfile/doc" RIGHT 4) LEFT 1 = "/"
NB: Keywords must be UPPERCASE
/n/ stands for an integer value
/s/ stands for a string value
/a/ stands for anything (integer or string)
Arithmetic
n + n Integer addition
n - n Integer subtraction
n * n Integer multiplication
n / n Integer division
n MOD n Modulo division (ie. remainder)
Boolean
n << n Logical shift left
n >> n Arithmetic shift right
n >>> n Logical shift right
n AND n And
n OR n Or
n EOR n Exclusive or
n NOT n Not
String
s + s Concatenation
s LEFT n Leftmost characters
s RIGHT n Rightmost characters
LEN s Number of characters
Comparison (-1 is TRUE, 0 is FALSE)
a = a Equal
a <> a Not equal
a < a Less than
a > a Greater than
a <= a Less than or equal
a >= a Greater than or equal
Conversion
STR n From integer to string
VAL s From string to integer
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