operator       = @{ "operator" } // TODO
operand        = @{ "operand" }  // TODO

wordSeperator  =_{ " " | "-" | "_" }
variable       =@{ ASCII_ALPHA
                 ~ (ASCII_ALPHANUMERIC | wordSeperator)*
                 ~ "?"?
                 }

char           =_{ "\"" ~ ANY ~ "\"" }
decNum         =_{ ASCII_DIGIT+ }
hexNum         =_{ "0x" ~ ASCII_HEX_DIGIT+ }
num            =_{ hexNum | decNum }
constant       = { char | num }
path           = { "\"" ~ (!"\"" ~ ANY)+ ~ "\"" }

include        =@{ "#include" ~ spacing+ ~ path }

var            =@{ "var"    ~ spacing+ ~ variable }
delvar         =@{ "delvar" ~ spacing+ ~ variable }

point          =@{ "point"  ~ spacing+ ~ variable }
pointm         =@{ "pointm" ~ spacing+ ~ variable }

add            =@{ "add"    ~ spacing+ ~ constant }
addb           =@{ "addb"   ~ spacing+ ~ constant }
addv           =@{ "addv"   ~ spacing+ ~ variable }

sub            =@{ "sub"    ~ spacing+ ~ constant }
subb           =@{ "subb"   ~ spacing+ ~ constant }
subv           =@{ "subv"   ~ spacing+ ~ variable }

copy           =@{ "copy"   ~ spacing+ ~ variable }
setz           =@{ "setz" }

getchr         =@{ "getchr" }
print          =@{ "print" }

macaroo        =_{ include }
instruction    =_{ macaroo

                 | var
                 | delvar

                 | point
                 | pointm

                 | add
                 | addb
                 | addv

                 | sub
                 | subb
                 | subv

                 | copy
                 | setz

                 | getchr
                 | print

                 | operator ~ (spacing+ ~ operand)?
                 }

loopBlockStart = { "[" ~ NEWLINE }
loopBlockEnd   = { "]" }
loopBlock      = { loopBlockStart
                 ~ statements
                 ~ spacing* ~ loopBlockEnd
                 }

statement      = _{ spacing*
                  ~ (instruction | loopBlock)
                  }

statements     = _{ (statement | NEWLINE)* }

spacing        = _{ " "  | "\t" }
COMMENT        = _{ ";;" ~ (!NEWLINE ~ ANY)* ~ NEWLINE}

file = {SOI ~ (statement ~ NEWLINE+)* ~ EOI}