INT [[:digit:]]+
DASH (-|--|---)
COMP (mm|cm|dm|m|dam|hm|km)
MASSA (mg|cg|dg|g|dag|hg|kg|dkg|q|t)
TEMPO (s|min|h)
TEMP (°c|K|°fh)
ELEC (a|v|ohm|W)
UNID ({COMP}|{MASSA}|{TEMPO}|{TEMP}|{ELEC})
PLATE ([[:digit:]][[:digit:]]"-"[[:digit:]][[:digit:]]"-"[[:alpha:]][[:alpha:]]|[[:alpha:]][[:alpha:]]"-"[[:digit:]][[:digit:]]"-"[[:digit:]][[:digit:]])
%%
1 { ECHO; printf("//DNCNS "); }
{INT} { ECHO; printf("//DNCNP "); }
{INT}{UNID} { ECHO; printf("//MEDIDA "); }
{INT}"h"{INT}"m" { ECHO; printf("//HORA "); }
{INT}{DASH}{INT} { ECHO; printf("//RESULTADO "); }
{PLATE} { ECHO; printf("//MATRICULA "); }
[[:alpha:]]+  {ECHO;}
%%
yywrap()
{
	return(1);
}

main()
{
	yylex();
}

/*
Character class expressions valid in flex:
[[:upper:]] == [A-Z]
[:lower:]] == [a-z]
[:alpha:]] == [A-Za-z] == [[:upper:]][:lower:]]
[:digit:]] == [0-9]
[:alnum:]] == [A-Za-z0-9] == [[:alpha:][:digit:]]
[:blank:]] == ["space""tab"]
[:cntrl:]] == [A-Z]
[:graph:]] == [A-Z]
[:print:]] == [A-Z]
[:punct:]] == [^ [:alnum:]]
[:space:]] == [A-Z]
[:xdigit:]] == [A-Z]
*/