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Simply BLT grammar specification

This commit is contained in:
RunasSudo 2021-07-23 17:07:03 +10:00
parent 4312bf89f6
commit efbcfd7f6c
Signed by: RunasSudo
GPG Key ID: 7234E476BF21C61A
2 changed files with 3 additions and 9 deletions
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6
src/election.rs
View File

@ -80,8 +80,7 @@ impl<N: Number> Election<N> {
preferences: Vec::new(),
};
let ballot_preferences = ballot_pairs.next().unwrap().into_inner();
for preference in ballot_preferences {
for preference in ballot_pairs {
let preference: usize = preference.as_str().parse().unwrap();
ballot.preferences.push(preference - 1);
}
@ -89,9 +88,6 @@ impl<N: Number> Election<N> {
election.ballots.push(ballot);
}
// Zero line
main.next();
// Read candidates
for _ in 0..num_candidates {
let string = main.next().expect("Expected candidate name");

6
src/parser/blt.pest
View File

@ -3,7 +3,7 @@ main = {
~ header ~ NEWLINE*
~ withdrawn ~ NEWLINE*
~ ballot_list
~ zero ~ NEWLINE*
~ "0" ~ NEWLINE*
~ (string ~ NEWLINE*)+
~ EOI
}
@ -19,11 +19,9 @@ withdrawn_cand = @{ "-" ~ integer }
ballot_list = { (ballot ~ NEWLINE*)* }
ballot = {
number ~ ballot_preferences ~ (zero ~ NEWLINE? | NEWLINE)
number ~ integer* ~ ("0" ~ NEWLINE? | NEWLINE)
}
ballot_preferences = { integer* }
zero = { "0" }
integer = @{ ASCII_NONZERO_DIGIT ~ ASCII_DIGIT* }
decimal = @{ "0." ~ ASCII_DIGIT+ | integer ~ "." ~ ASCII_DIGIT+ }
number = { decimal | integer }