Series 2600 System SourceMeters Reference Manual TSP Programming Fundamentals 2-57
Return to
2600S-901-01 Rev. A / May 2006
Output of code above:
red
1
2
3
Precedence
Operator precedence in TSL follows the table below, from higher to lower priority:
^
not
- (unary)
*
/
+
-
.. (concatenation)
<
>
<=
>=
~=
==
and
or
All operators are left associative, except for ‘
^
’ (exponentiation) and ‘
..
’, which
are right associative. Therefore, the following expressions on the left are equiva-
lent to those on the right:
a+i < b/2+1
(a+i) < ((b/2)+1)
5+x^2*8
5+((x^2)*8)
a < y and y <= z
(a < y) and (y <= z)
-x^2
-(x^2)
x^y^z x^(y^z)
Logical operators
The logical operators are
and
,
or
, and
not
. Like control structures, all logical
operators consider
false
and
nil
as false and anything else as true.
The operator
and
returns its first argument if it is false, otherwise it returns its
second argument.
The operator
or
returns its first argument if it is not false; otherwise it returns its
second argument:
print(4 and 5)
print(nil and 13)
print(false and 13)
print(4 or 5)
print(false or 5)
Output of code above:
5
nil
false
Summary of Contents for SourceMeter 2600 Series
Page 575: ...AppendixF DisplayCharacterCodes Appendix F topics Introduction page F 2...
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