2 files changed, 55 insertions, 3 deletions
diff --git a/src/animalia.rs b/src/animalia.rs
index f3b3261..e1ec8eb 100644
--- a/src/animalia.rs
+++ b/src/animalia.rs
@@ -1,9 +1,60 @@
 use std::error::Error;
-
+use std::io::{self, prelude::*};
+use std::collections::HashSet;
 pub fn main(args: Vec<String>) -> Result<(), Box<dyn Error>> {
 	if !args.is_empty() {
 		Err("No arguments expected to 'animalia' command")?;
 	}
-	
+	let defs_path = "en-definitions.txt";
+	let taxa_path = "taxa.txt";
+	let taxa_file = std::fs::File::open(taxa_path)
+		.map_err(|e| format!("couldn't open {taxa_path}: {e}"))?;
+	let mut species: HashSet<String> = HashSet::new();
+	let mut taxa: HashSet<String> = HashSet::new();
+	for line in io::BufReader::new(taxa_file).lines() {
+		let line = line.map_err(|e| format!("couldn't read {taxa_path}: {e}"))?;
+		let line = line.trim_end_matches(['\r', '\n']);
+		if line.contains(' ') {
+			species.insert(line.into());
+		} else {
+			taxa.insert(line.into());
+		}
+	}
+	let definitions = std::fs::File::open(defs_path)
+		.map_err(|e| format!("couldn't open {defs_path}: {e}"))?;
+	let levels: HashSet<&str> = [
+		"kingdom",
+		"phylum",
+		"class",
+		"order",
+		"family",
+		"genus",
+	].into_iter().collect();
+	let mut animalia = vec![];
+	for line in io::BufReader::new(definitions).lines() {
+		let line = line.map_err(|e| format!("error reading {defs_path}: {e}"))?;
+		let line = line.trim_end_matches(['\r', '\n']);
+		let (word, rest) = line.split_once("  ").expect("bad format for definitions file");
+		let (_class, definition) = rest.split_once(' ').expect("bad format for definitions file");
+//		println!("{word} {definition}");
+		let parts: Vec<&str> = definition.split(|c: char| !c.is_alphabetic()).collect();
+		for ws in parts.windows(2) {
+			if species.contains(&format!("{} {}",ws[0],ws[1])) ||
+			// handles {{taxfmt|Felidae|family}} &c.
+				levels.contains(ws[1]) && taxa.contains(ws[0]) {
+				animalia.push(word.to_owned());
+			}
+		}
+	}
+	animalia.sort_unstable();
+	animalia.dedup();
+	let output_path = "animalia.txt";
+	let mut s = String::new();
+	for animal in &animalia {
+		s.push_str(animal);
+		s.push('\n');
+	}
+	std::fs::write(output_path, s)
+		.map_err(|e| format!("couldn't write {output_path}: {e}"))?;
 	Ok(())
 }
diff --git a/src/main.rs b/src/main.rs
index 0fcc3d6..8ca45fb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -25,7 +25,8 @@ fn try_main() -> Result<(), Box<dyn Error>> {
 	let mut args = std::env::args_os().skip(1);
 	let command = args.next();
 	let no_command = "No command specified. Commands available:
-- definitions";
+- definitions
+- animalia";
 	let Some(command) = command else {
 		return Err(no_command.into());
 	};