Move top-level files into concepts/

[learn-rust.git] / src / word_utils.rs

diff --git a/src/word_utils.rs b/src/word_utils.rs
deleted file mode 100644 (file)
index e3e71bf..0000000
--- a/src/word_utils.rs
+++ /dev/null
@@ -1,43 +0,0 @@
-pub fn first_word(s: &str) -> &str {
-    for (i, &item) in s.as_bytes().iter().enumerate() {
-        if item == b' ' {
-            return &s[..i];
-        }
-    }
-
-    s
-}
-
-pub fn second_word(s: &str) -> Option<&str> {
-    for (i, &item) in s.as_bytes().iter().enumerate() {
-        if item == b' ' {
-            return Some(first_word(&s[(i + 1)..]));
-        }
-    }
-
-    None
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_first_word() {
-        assert_eq!(first_word(""), "");
-        assert_eq!(first_word("one"), "one");
-        assert_eq!(first_word("one two"), "one");
-
-        assert_eq!(first_word(&String::from("one two")), "one");
-    }
-
-    #[test]
-    fn test_second_word() {
-        assert_eq!(second_word(""), None);
-        assert_eq!(second_word("one"), None);
-        assert_eq!(second_word("one two"), Some("two"));
-        assert_eq!(second_word("one two three"), Some("two"));
-
-        assert_eq!(second_word(&String::from("one two three")), Some("two"));
-    }
-}