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spitfire

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Error resilient parser for Elixir

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spitfire src spitfire_tokenizer.hrl
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src/spitfire_tokenizer.hrl 

%% Vendored from elixir-lang/elixir, comes with the above copyright, only changed "elixir" to "spitfire" 

%% Numbers

-define(is_hex(S), (?is_digit(S) orelse (S >= $A andalso S =< $F) orelse (S >= $a andalso S =< $f))).

-define(is_bin(S), (S >= $0 andalso S =< $1)).

-define(is_octal(S), (S >= $0 andalso S =< $7)).



%% Digits and letters

-define(is_digit(S), (S >= $0 andalso S =< $9)).

-define(is_upcase(S), (S >= $A andalso S =< $Z)).

-define(is_downcase(S), (S >= $a andalso S =< $z)).



%% Others

-define(is_quote(S), (S =:= $" orelse S =:= $')).

-define(is_sigil(S), (S =:= $/ orelse S =:= $< orelse S =:= $" orelse S =:= $' orelse

                      S =:= $[ orelse S =:= $( orelse S =:= ${ orelse S =:= $|)).

-define(LOC(Line, Column), [{line, Line}, {column, Column}]).



%% Spaces

-define(is_horizontal_space(S), (S =:= $\s orelse S =:= $\t)).

-define(is_vertical_space(S), (S =:= $\r orelse S =:= $\n)).

-define(is_space(S), (?is_horizontal_space(S) orelse ?is_vertical_space(S))).



%% Bidirectional control

%% Retrieved from https://trojansource.codes/trojan-source.pdf

-define(bidi(C), C =:= 16#202A;

                 C =:= 16#202B;

                 C =:= 16#202D;

                 C =:= 16#202E;

                 C =:= 16#2066;

                 C =:= 16#2067;

                 C =:= 16#2068;

                 C =:= 16#202C;

                 C =:= 16#2069).