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MVEL 2.0 Literals
A literal is used to represent a fixed-value in the source of a particular script.
String literals
String literals may be denoted by single or double quotes.
String escape sequences
\\- Double escape allows rendering of single backslash in string.\n- Newline\r- Return\u####- Unicode character (Example:\uAE00)\###- Octal character (Example:\73)
Numeric literals
Integers can be represented in decimal (base 10), octadecimal (base 8), or hexadecimal (base 16).
A decimal integer can be expressed as any number that does not start with zero.
An octadecimal representation of an integer is possible by prefixing the number with a zero, followed by digits ranging from 0 to 7.
Hexidecimal is represented by prefixing the integer with 0x followed by numbers ranging from 0-9..A-F.
Floating point literals
A floating point number consists of a whole number and a factional part denoted by the point/period character, with an optional type suffix.
BigInteger and BigDecimal literals
You can represent BigInteger and BigDecimal literals by using the suffixes B and I (uppercase is mandatory).
Boolean literals
Boolean literals are represented by the reserved keywords true and false.
Null literal
The null literal is denoted by the reserved keywords null or nil.
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