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whoops, messed up true,false,nil - were being parsed as symbols

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Nathan Braswell
2020-03-29 20:56:27 -04:00
parent f86a6a600b
commit 40f0125ed1
1 changed files with 12 additions and 4 deletions
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k_prime.krak
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@@ -940,9 +940,6 @@ fun main(argc: int, argv: **char): int {
grammer.add_to_nonterminal(optional_WS, vec(WS), ret_nil_sym)
var atom = grammer.add_new_nonterminal("atom", vec(grammer.add_terminal("-?[0-9]+", fun(input: ref str, l: int, r: int): MalResult { return MalResult::Ok(MalValue::Int(string_to_num<int>(input.slice(l,r)))); })), ret_0_sym)
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("true", fun(input: ref str, l: int, r: int): MalResult { return MalResult::Ok(MalValue::True()); })), ret_0_sym)
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("false", fun(input: ref str, l: int, r: int): MalResult { return MalResult::Ok(MalValue::False()); })), ret_0_sym)
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("nil", fun(input: ref str, l: int, r: int): MalResult { return MalResult::Ok(MalValue::Nil()); })), ret_0_sym)
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("\"([#-[]| |[]-~]|(\\\\)|(\\n)|(\\t)|(\\\*)|(\\0)|
|[ -!]|(\\\\\"))*\"", fun(input: ref str, l: int, r: int): MalResult {
var to_ret = str()
@@ -965,7 +962,18 @@ fun main(argc: int, argv: **char): int {
return MalResult::Ok(MalValue::String(to_ret));
})), fun(x: ref vec<MalResult>): MalResult { return x[0]; }) //"
/*grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("([a-z]|[A-Z]|_|[0-9]|\\*|\\?|\\+|-|!|=|&|'|<|>)*", fun(input: ref str, l: int, r: int): MalResult { return MalResult::Ok(MalValue::Symbol(input.slice(l,r))); })), ret_0_sym)*/
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("([a-z]|[A-Z]|_|\\*|\\?|\\+|-|!|=|&|<|>)([a-z]|[A-Z]|_|[0-9]|\\*|\\?|\\+|-|!|=|&|<|>)*", fun(input: ref str, l: int, r: int): MalResult { return MalResult::Ok(MalValue::Symbol(input.slice(l,r))); })), ret_0_sym)
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("([a-z]|[A-Z]|_|\\*|\\?|\\+|-|!|=|&|<|>)([a-z]|[A-Z]|_|[0-9]|\\*|\\?|\\+|-|!|=|&|<|>)*", fun(input: ref str, l: int, r: int): MalResult {
var s = input.slice(l,r)
if s == "true" {
return MalResult::Ok(MalValue::True());
} else if s == "false" {
return MalResult::Ok(MalValue::False());
} else if s == "nil" {
return MalResult::Ok(MalValue::Nil());
} else {
return MalResult::Ok(MalValue::Symbol(input.slice(l,r)));
}
})), ret_0_sym)
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal(":([a-z]|[A-Z]|_)([a-z]|[A-Z]|_|[0-9])*", fun(input: ref str, l: int, r: int): MalResult { return MalResult::Ok(MalValue::Keyword(input.slice(l,r))); })), ret_0_sym)
var form = grammer.add_new_nonterminal("form", vec(atom), ret_0_sym)