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Fix error swallowing grammer errors for custom grammers on read-string, start constructing standard_grammar

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Nathan Braswell
2020-10-11 19:42:00 -04:00
parent e6319d18f7
commit 0820113c67
3 changed files with 44 additions and 6 deletions
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11
k_prime.krak
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@@ -454,6 +454,11 @@ fun read_str(grammar: ref Grammer<KPResult,KPValue>, s: str): pair<int, KPResult
}
}
if longest >= 0 {
println("trying to parse: " + s)
println(str("length of BSR is: ") + BSR.size())
for (var i = 0; i < BSR.data.size; i++;) {
println(str() + i + ": " + grammar.to_string(BSR.data[i]))
}
return make_pair(longest, grammar.eval_BSR(s.slice(0, longest), BSR))
} else {
println("trying to parse: " + s)
@@ -1239,7 +1244,7 @@ fun main(argc: int, argv: **char): int {
return make_pair(null<KPEnv>(), KPResult::Err(kpString(str("read-string with second param not containing a sub array : ") + i + " index 1 not array")))
}
var rule = inner_arr[1].get_array_rc().get()
add_grammer_rule_helper(grammar, nonterminal_str, rule, inner_arr[2], fun(f: ref KPValue, x: ref vec<KPResult>): KPResult {
var result = add_grammer_rule_helper(grammar, nonterminal_str, rule, inner_arr[2], fun(f: ref KPValue, x: ref vec<KPResult>): KPResult {
var params = vec<KPValue>()
for (var j = 0; j < x.size; j++;) {
if is_err(x[j]) {
@@ -1253,6 +1258,9 @@ fun main(argc: int, argv: **char): int {
}
return function_call(get_value(unwrapped_f), params, kpEnv(null<KPEnv>()))
})
if is_err(result) {
return make_pair(null<KPEnv>(), result)
}
}
if !params[2].is_symbol() {
@@ -1264,6 +1272,7 @@ fun main(argc: int, argv: **char): int {
}
grammar.set_start_symbol((-1*start_symbol_idx)-1)
println("Doing actual reading with new grammer of " + params[0].get_string())
println("With grammer:\n" + grammar.to_string())
return make_pair(null<KPEnv>(), READ(grammar, params[0].get_string()))
}
}