feat(cli): allow filtering of parts of speech

src/main.rs

@@ -2,12 +2,28 @@ use clap::Parser;
 use colored::Colorize;
 use serde::Deserialize;
 
+static POSSIBLE_PARTS_OF_SPEECH: &[&str] = &[
+    "noun",
+    "verb",
+    "adjective",
+    "adverb",
+    "pronoun",
+    "preposition",
+    "conjunction",
+    "interjection",
+    "exclamation",
+    "determiner",
+    "article",
+];
+
 #[derive(Parser, Debug)]
 #[command(version, about, long_about = None)]
 struct Args {
     word: String,
     #[arg(short, long, default_value = "en")]
     language: String,
+    #[arg(short, long, default_values = POSSIBLE_PARTS_OF_SPEECH)]
+    parts_of_speech: Vec<String>,
     #[arg(short, long, action = clap::ArgAction::SetTrue)]
     examples: bool,
 }
@@ -52,6 +68,9 @@ async fn main() {
     let result = result.unwrap();
 
     for entry in result.entries {
+        if !args.parts_of_speech.contains(&entry.part_of_speech) {
+            continue;
+        }
         println!(
             "{} ({})",
             result.word.yellow().underline(),