Dotnet

• install dotnet 6
• install antlr
• cd WaifuGrammar
• antlr4 -Dlanguage=CSharp
  -o WaifuGrammar/grammar_out/waifu
  -package waifu -listener -visitor
  -lib WaifuGrammar/grammar
  WaifuGrammar/grammar/Waifu2.g4
• Develop in grammar/Waifu2.g4 and Program.cs

Notes

• Final implementation in rust? Althought rantlr4 doesn't have rust support. So we will have to write parser and lexer from sctach

character	meaning	p	z
~	Unused	Negation
`	Unused	Infix maybe
!	Unused	unsafe unwrap, far future
@	Unused	maybe a valid starting character for ID
#	Comments	Use # for single line ## for multiline comments
$	Unused	I don't like using this anywhere. Useless.
%	OP_MOD
^	OP_POWER	Not xor.
&	OP_AND	Not bitwise and.
*	OP_MULT
(	Grouping	Also range, non inclusive
)	Grouping	Also range, non inclusive
-	OP_MINUS, Number negation	Maybe in ranges? - makes more sense than .. however that becomes a problem with negative numbers, unless we force the whistespace
_	Unused	Not sure, doesn't seem like a useful symbol. we could use it for digit grouping in integers like a lot of modern languages do
=	OP_EQUALS
+	OP_PLUS	Not allowed as a number prefix. It's ugly and serves no purpose. +X is X. - is useful to flip the sign, we shouldn't add this 'for symetries'
[	Unused	Inclusive Range
]	Unused	Inclusive range
{	Unused	Should be used to define a struct. { WS NL fields functions NL } NL
}	Unused	struct close
;	Unused	no idea.
:	Type prefix. very nice.	Very nice.
"	Unused	No idea.
'	Strings	Should be used both for single and multiline strings. Should be able to specify multiple in a row in order to require that many to close without escaping any lower number of quotes in the string
PIPE LOl	OP_OR
<	OP_LESS_THAN
>	OP_GREATER_THAN
,	Unused	?
.	Unused	Object navigation is an obvious one, but I'd like to explore other possiblities. One idea is to have . act as a "value of the expression in the line above, which would be very useful for using values without assigning them to variables, 'auto piping'
?	Unused	Prefix for 'if' and 'switch' like thing. ? EXPR NL INDENT (VAL WS expr)+ (_ WS expr)?
/	OP_DIV
\	UNUSED	I'm not 100% opposed but i don't like the idea of using this as an escape character.