13. 1. Constants

13. 1. 1. Integer Constants

Integer constants are written in the ususal decimal notation.

Examples

7
395

13. 1. 2. Floating Point Constants

Floating point constants are written in the ususal notation, with a decimal point. The scientific notation with an exponent (indicated with the letter E or e is also supported. The decimal point is optional for numbers with exponent. Since integer values are automatically converted to floating point values wherever a floating point value is expected, the user can also use integer constants.

Examples

5.3
23.478e17
3.59e-5
1E3

13. 1. 3. String Constants

String constants are enclosed in double quotes. If double quotes are used inside a string, they have to be escaped by a \ (backslash). If a string is used inside a command argument, single quotes also have to be escaped by using \' because they are used for enclosing each argument.

Examples

"hello"
"Hello World!"