sort filters to improve performance

src/data.rs

@@ -40,7 +40,10 @@ impl Display for Card {
             write!(f, "{attr}/")?;
         }
         write!(f, "{} {})", self.r#type, self.card_type)?;
+        f.write_str("\n")?;
+        f.write_str(&self.text)?;
         if self.card_type.contains(&String::from("Monster")) {
+            f.write_str("\n")?;
             match (self.atk, self.def) {
                 (Some(atk), Some(def)) => write!(f, "{atk} ATK / {def} DEF")?,
                 (Some(atk), None) if self.link_rating.is_some() => write!(f, "{atk} ATK")?,

src/filter.rs

@@ -45,14 +45,11 @@ pub fn fallback_filter(query: &str) -> Result<RawCardFilter, String> {
     if query.contains(OPERATOR_CHARS) {
         return Err(format!("Invalid query: {query}"));
     }
-    #[cfg(debug_assertions)]
-    println!("Trying to match {query} as card name");
     let q = query.to_lowercase();
     Ok((Field::Name, Operator::Equals, Value::String(q)))
 }
 
 pub fn build_filter(query: RawCardFilter) -> Result<CardFilter, String> {
-    dbg!(&query);
     Ok(match query {
         (Field::Atk, op, Value::Numerical(n)) => Box::new(move |card| op.filter_number(card.atk, n)),
         (Field::Def, op, Value::Numerical(n)) => Box::new(move |card| op.filter_number(card.def, n)),

src/main.rs

@@ -1,5 +1,5 @@
 #![feature(option_result_contains)]
-use std::collections::HashMap;
+use std::{collections::HashMap, time::Instant};
 
 use data::CardInfo;
 use filter::SearchCard;
@@ -12,10 +12,17 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let cards = serde_json::from_reader::<_, CardInfo>(std::io::BufReader::new(std::fs::File::open("cards.json")?))?.data;
     let search_cards: Vec<_> = cards.iter().map(SearchCard::from).collect();
     let cards_by_id: HashMap<_, _> = cards.into_iter().map(|c| (c.id, c)).collect();
+    let now = Instant::now();
     let raw_query = std::env::args().nth(1).unwrap();
     let query = parser::parse_filters(&raw_query)?;
-    for c in search_cards.iter().filter(|card| query.iter().all(|q| q(card))) {
+    let query_time = now.elapsed();
-        println!("{}", cards_by_id.get(&c.id).unwrap());
+    let now = Instant::now();
+    let matches: Vec<_> = search_cards.iter().filter(|card| query.iter().all(|q| q(card))).collect();
+    let filter_time = now.elapsed();
+    for c in &matches {
+        println!("{}\n", cards_by_id.get(&c.id).unwrap());
     }
+    println!("Parsed query in {:?}", query_time);
+    println!("Searched {} cards in {:?} ({} hits)", search_cards.len(), filter_time, matches.len());
     Ok(())
 }

src/parser.rs

@@ -4,16 +4,17 @@ use crate::filter::{build_filter, fallback_filter, CardFilter, RawCardFilter};
 use nom::{
     branch::alt,
     bytes::complete::{take_until1, take_while, take_while_m_n},
-    character::complete::multispace0,
+    character::complete::{char, multispace0},
     combinator::{complete, map_res, rest, verify},
     multi::many_m_n,
-    sequence::{preceded, tuple},
+    sequence::{delimited, preceded, tuple},
     IResult,
 };
 
 pub fn parse_filters(input: &str) -> Result<Vec<CardFilter>, String> {
-    parse_raw_filters(input).map_err(|e| format!("Error while parsing filters “{input}”: {e:?}")).and_then(|(rest, v)| {
+    parse_raw_filters(input).map_err(|e| format!("Error while parsing filters “{input}”: {e:?}")).and_then(|(rest, mut v)| {
         if rest.is_empty() {
+            v.sort_unstable_by_key(|(f, _, _)| *f as u8);
             v.into_iter().map(build_filter).collect()
         } else {
             Err(format!("Input was not fully parsed. Left over: “{rest}”"))
@@ -44,23 +45,25 @@ fn operator(input: &str) -> IResult<&str, Operator> {
 }
 
 fn value(input: &str) -> IResult<&str, Value> {
-    map_res(alt((take_until1(" "), rest)), |i: &str| match i.parse() {
+    map_res(alt((delimited(char('"'), take_until1("\""), char('"')), take_until1(" "), rest)), |i: &str| match i.parse() {
         Ok(n) => Ok(Value::Numerical(n)),
         Err(_) if i.is_empty() => Err("empty filter argument"),
         Err(_) => Ok(Value::String(i.to_lowercase())),
     })(input)
 }
 
+/// Ordinals are given highest = fastest to filter.
+/// This is used to sort filters before applying them.
 #[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub enum Field {
-    Atk,
+    Text = 0,
-    Def,
+    Name = 1,
-    Level,
+    Class = 2,
-    Type,
+    Attribute = 3,
-    Attribute,
+    Type = 4,
-    Class,
+    Level = 5,
-    Name,
+    Atk = 6,
-    Text,
+    Def = 7,
 }
 
 impl FromStr for Field {
@@ -156,11 +159,30 @@ mod tests {
         assert_eq!(parse_raw_filter(rest), Ok(("", (Field::Level, Operator::Equals, Value::Numerical(4)))));
 
         assert_eq!(
-            parse_raw_filters("atk>=100 l:4"),
+            parse_raw_filters("atk>=100 l=4"),
             Ok((
                 "",
                 vec![(Field::Atk, Operator::GreaterEqual, Value::Numerical(100)), (Field::Level, Operator::Equals, Value::Numerical(4))]
             ))
         );
+
+        assert_eq!(
+            parse_raw_filters(r#"t:counter c:trap o:"negate the summon""#),
+            Ok((
+                "",
+                vec![
+                    (Field::Type, Operator::Equals, Value::String("counter".into())),
+                    (Field::Class, Operator::Equals, Value::String("trap".into())),
+                    (Field::Text, Operator::Equals, Value::String("negate the summon".into())),
+                ]
+            ))
+        );
+    }
+
+    #[test]
+    fn quoted_value_test() {
+        let (rest, filter) = parse_raw_filter(r#"o:"destroy that target""#).unwrap();
+        assert_eq!(rest, "");
+        assert_eq!(filter, (Field::Text, Operator::Equals, Value::String("destroy that target".into())));
     }
 }