Merge pull request #6 from FluidInference/fix/money-measure-parsing

fix: currency trailing dot panic and measure parser premature exit

Author: Alex-Wengg

src/tts/measure.rs

@@ -152,7 +152,14 @@ pub fn parse(input: &str) -> Option<String> {
         if clean.contains('.') {
             let parts: Vec<&str> = clean.splitn(2, '.').collect();
             if parts.len() == 2 {
-                let int_val: i64 = parts[0].parse().ok()?;
+                let int_val: i64 = if parts[0].is_empty() {
+                    0
+                } else {
+                    let Ok(v) = parts[0].parse::<i64>() else {
+                        continue;
+                    };
+                    v
+                };
                 let int_words = number_to_words(int_val);
                 let frac_words = super::spell_digits(parts[1]);
                 let unit_word = unit_info.plural; // decimals are usually plural
@@ -166,7 +173,9 @@ pub fn parse(input: &str) -> Option<String> {
             continue;
         }
 
-        let n: i64 = clean.parse().ok()?;
+        let Ok(n) = clean.parse::<i64>() else {
+            continue;
+        };
         let num_words = if is_negative {
             format!("minus {}", number_to_words(n))
         } else {
@@ -232,6 +241,15 @@ mod tests {
         assert_eq!(parse("1 GB"), Some("one gigabyte".to_string()));
     }
 
+    #[test]
+    fn test_decimal_with_empty_integer() {
+        // ".5 kg" should not cause premature return — continue to next unit
+        assert_eq!(
+            parse(".5 kg"),
+            Some("zero point five kilograms".to_string())
+        );
+    }
+
     #[test]
     fn test_non_measure() {
         assert_eq!(parse("hello"), None);

src/tts/money.rs

@@ -148,7 +148,9 @@ fn parse_dollars_cents(amount: &str, currency: &Currency) -> Option<String> {
     let cents_str = parts[1];
 
     // Pad or truncate cents to 2 digits
-    let cents: i64 = if cents_str.len() == 1 {
+    let cents: i64 = if cents_str.is_empty() {
+        0
+    } else if cents_str.len() == 1 {
         cents_str.parse::<i64>().ok()? * 10
     } else if cents_str.len() == 2 {
         cents_str.parse().ok()?
@@ -258,6 +260,14 @@ mod tests {
         assert_eq!(parse("¥500"), Some("five hundred yen".to_string()));
     }
 
+    #[test]
+    fn test_trailing_dot() {
+        // "$5." should not panic — empty cents treated as zero
+        assert_eq!(parse("$5."), Some("five dollars".to_string()));
+        assert_eq!(parse("$1."), Some("one dollar".to_string()));
+        assert_eq!(parse("$0."), Some("zero dollars".to_string()));
+    }
+
     #[test]
     fn test_non_money() {
         assert_eq!(parse("hello"), None);