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fix comment handling (including at beginning of files)

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Nathan Braswell
2020-03-31 15:46:03 -04:00
parent ed33f967ce
commit f70cc8030e
1 changed files with 23 additions and 5 deletions
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28
k_prime.krak
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@@ -968,6 +968,7 @@ fun main(argc: int, argv: **char): int {
to_ret += input[i]
}
}
/*return MalResult::Ok(MalValue::String(input.slice(l+1,r-1)));*/
return MalResult::Ok(MalValue::String(to_ret));
})), MalValue::Nil(), ret_0_sym) //"
grammer.add_to_nonterminal(atom, vec(grammer.add_terminal("-|(([a-z]|[A-Z]|_|\\*|\\?|\\+|!|=|&|<|>)([a-z]|[A-Z]|_|[0-9]|\\*|\\?|\\+|-|!|=|&|<|>)*)", MalValue::Nil(), fun(_: ref MalValue, input: ref str, l: int, r: int): MalResult {
@@ -1566,10 +1567,26 @@ fun main(argc: int, argv: **char): int {
var i = 0
var current_ret = MalResult::Ok(MalValue::Nil())
/*println(str("eval-read-string length is ") + input.length())*/
if i < input.length() {
// initial handle whitespace
var BSR = fungll(grammer, optional_WS, input.slice(i, -1))
var longest = -1
for (var j = 0; j < BSR.data.size; j++;) {
if BSR.data[j].nonterminal == optional_WS && BSR.data[j].left == 0 {
if BSR.data[j].right > longest {
longest = BSR.data[j].right
}
}
}
if longest > 0 {
i += longest
}
/*println(str("after skip whitespace i is ") + i + "input is " + input.slice(i, -1))*/
}
while i < input.length() {
var r = read_str(grammer, input.slice(i, -1))
i += r.first
/*println(str("new i is ") + i)*/
/*println(str("after read_str i is ") + i + " input is " + input.slice(i, -1))*/
if is_err(r.second) {
return r.second
}
@@ -1577,19 +1594,20 @@ fun main(argc: int, argv: **char): int {
if is_err(current_ret) {
return current_ret
}
/*println("cutting through WS")*/
// handle whitespace again
var BSR = fungll(grammer, optional_WS, input.slice(i, -1))
var longest = -1
for (var j = 0; j < BSR.data.size; j++;) {
if BSR.data[j].nonterminal == optional_WS && BSR.data[j].left == 0 {
longest = BSR.data[j].right
if BSR.data[j].right > longest {
longest = BSR.data[j].right
}
}
/*println(str() + j + ": " + grammer.to_string(BSR.data[j]))*/
}
if longest > 0 {
i += longest
}
/*println(str("new i post WS is ") + i)*/
/*println(str("after skip whitespace i is ") + i + "input is " + input.slice(i, -1))*/
}
return current_ret
}