Split word search into its own file too.

src/aux.rs

@@ -0,0 +1,33 @@
+use crate::Value;
+
+#[derive(Default, Debug, Clone)]
+pub struct Options {
+    pub limit: usize,
+    pub query: String,
+    pub interactive: bool,
+}
+
+//
+// --- Value helper
+//
+
+pub fn value_to_bool(value: &Value) -> bool {
+    match value {
+        Value::Bool(b) => *b,
+        _ => unreachable!(),
+    }
+}
+
+pub fn value_to_str(value: &Value) -> &str {
+    match value {
+        Value::String(s) => s,
+        _ => unreachable!(),
+    }
+}
+
+pub fn value_to_arr(value: &Value) -> &Vec<Value> {
+    match value {
+        Value::Array(a) => a,
+        _ => unreachable!(),
+    }
+}