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Grammer loading works and test file can lex itself. Got rid of regex memory saftey for speed, will reintroduce next

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Nathan Braswell
2015-07-06 13:48:19 -04:00
parent 501331e37b
commit 92f5c63c9a
7 changed files with 61 additions and 10 deletions
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16
stdlib/grammer.krak
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@@ -46,7 +46,7 @@ fun split_into_words(gram_str: string::string): vector::vector<string::string> {
return out
}
fun load_grammer(path: string::string): grammer {
fun load_grammer(gram_str: string::string): grammer {
var gram.construct(): grammer
var leftSide = symbol::symbol("", false)
var doLeftSide = true
@@ -55,7 +55,7 @@ fun load_grammer(path: string::string): grammer {
/*io::print("word: "); io::println(word);*/
/*})*/
/*return gram*/
split_into_words(io::read_file(path)).for_each(fun(word: string::string) {
split_into_words(gram_str).for_each(fun(word: string::string) {
if (word == "=") {
// do nothing
} else if (word == "|") {
@@ -69,7 +69,13 @@ fun load_grammer(path: string::string): grammer {
if (doLeftSide)
leftSide = symbol::symbol(word, true)
else
rightSide.add(symbol::symbol(word, word[0] == '"'))
if (word[0] == '"') {
rightSide.add(symbol::symbol(word.slice(1,-2), true))
/*gram.regexs.add_unique(regex::regex(word.slice(1,-2)))*/
gram.regexs.add(regex::regex(word.slice(1,-2)))
} else {
rightSide.add(symbol::symbol(word, false))
}
doLeftSide = false
}
})
@@ -78,7 +84,7 @@ fun load_grammer(path: string::string): grammer {
obj grammer (Object) {
var rules: vector::vector<rule>
var regexs: set::set<regex::regex>
var regexs: vector::vector<regex::regex>
fun construct(): *grammer {
rules.construct()
@@ -143,7 +149,7 @@ obj rule (Object) {
fun to_string(): string::string {
var result = lhs.name + " -> "
rhs.for_each( fun(i : symbol::symbol) { result += i.name + ", "; } )
rhs.for_each( fun(i : symbol::symbol) { result += i.to_string() + ", "; } )
return result
}
}