run:
alias main {
    echo t
    echo  e
    set %anumber 0
    echo   s
    echo    t
    cocks
}

alias cocks {
    echo this is da cox blox
    set %astring fooey
    echo varieebable: %astring %anumber
    numtest
}

alias i {
    echo %i
}

alias numtest {
    set %i 0
    set %notanumber cocks
    i
    inc %i
    i
    inc %i
    i
    inc %i
    i
    dec %i 
    dec %i
    dec %i 
    dec %i
    dec %i
    dec %i
    i
    ;throw errors:
    inc %notanumber
    dec %notanumber
}
alias: jmirc.lang.Alias: i
alias: jmirc.lang.Alias: main
alias: jmirc.lang.Alias: cocks
alias: jmirc.lang.Alias: numtest
var: jmirc.lang.Variable (STRING): %notanumber = cocks
var: jmirc.lang.Variable (NUMBER): %i = 0
var: jmirc.lang.Variable (NUMBER): %anumber = 0
var: jmirc.lang.Variable (STRING): %astring = fooey
--------PROGRAM----------
t 
 e 
  s 
   t 
this is da cox blox 
varieebable: fooey 0 
0 
1 
2 
3 
-3 
Error: Cannot increment non-number variable: jmirc.lang.Variable (STRING): %notanumber = cocks
Error: Cannot decrement non-number variable: jmirc.lang.Variable (STRING): %notanumber = cocks
Executed successfully.