Node:Spacing, Next:Precedence, Previous:Comments, Up:Syntax
Statements may be delimited by : or (more usually) by a new line.
Indentation is significant. ...
A line may be continued with \.
A \ (unless inside a string literal written using double quotes,
or at the end of the line) means that the next character is
treated as if it were a letter.
Spaces are significant:
Q1> 2 + 3*4 14 Q2> 2+3 * 4 20