kraken/tests/test_lexer.krak

import lexer:*
import regex:*
import string:*
import symbol:*
import io:*
import util:*

fun main(): int {
    var lex.construct(): lexer
    lex.set_input(string("aaaatesta"))
    lex.add_regex(regex("a+"))
    lex.add_regex("test")
    println(lex.next().to_string())
    println(lex.next().to_string())

    println("old contributed tests")

    {
        var lex.construct(): lexer
        lex.add_regex("b")
        lex.set_input(string("bb"))
        range(3).for_each(fun(i: int) { println(lex.next().to_string()); } )
    }
    println()
    {
        var lex.construct(): lexer
        lex.add_regex("a*")
        lex.add_regex("b")
        lex.set_input(string("aaabaabb"))
        range(6).for_each(fun(i: int) { println(lex.next().to_string()); } )
    }
    println()
    {
        var lex.construct(): lexer
        lex.add_regex("a|b")
        lex.set_input(string("blah"))
        range(2).for_each(fun(i: int) { println(lex.next().to_string()); } )
    }
    println()
    {
        var lex.construct(): lexer
        lex.add_regex("xyzzy")
        lex.set_input(string("xyzzy"))
        range(2).for_each(fun(i: int) { println(lex.next().to_string()); } )
    }
    println()
    {
        var lex.construct(): lexer
        lex.add_regex("int")
        lex.add_regex("(i|n|t|e)+")
        lex.set_input(string("intent"))
        range(2).for_each(fun(i: int) { println(lex.next().to_string()); } )
    }

    return 0
}