The if condition:

<keyword><conditional expression><code>

Conditional expressions need a LEFT and RIGHT side:

if 1 < 2 && 0 != "Hello" foobar();
|  |   |    |       |    |
|  L + R    L -+--- R    <code>
|    |         |
|    L ---+--- R
|         |
|         <cond. expr.>
<keyword>


Parsing:
	Enter EXPRESSION PARSER when <keyword> is encountered
	Exit  EXPRESSION PARSER when sides are balanced


Single-sided expressions: If the LEFT side returns a boolean value
OR/AND no conditional operator is found, the expression is also balanced.