xlang

X programming language

tokens

• Boolean -> true, false
• Integer -> all integer value
• String -> double quoted string
• Variable -> name should match regex : [a-zA-Z][a-zA-Z0-9]+
• Operator -> and, or, not, +, ++ , - , *, /, < , >, = , ==, .
• Keyword -> if, else, var, struct, print

Expression(I)

• Variable(C)
• Operator(I)
  • BinaryOperator(A)
    • AddOperator
    • ConcatOperator
  • UnaryOperator(A)
    • NotOperator
• Value(A)
  • BooleanValue
  • StringValue
  • IntegerValue

Statement(I)

• CompositeStatement
• AssingStatement
• PrintSatement

Examples

code

var i2 = 5
var s1 = "hello"
var s2 = " world"
var i3 = + i1 i2
print i3
var s3 = ++ s1 s2
print s3";

output

7
hello world