X-Git-Url: https://piware.de/gitweb/?p=learn-rust.git;a=blobdiff_plain;f=src%2Fword_utils.rs;fp=src%2Fword_utils.rs;h=d087820a1ec0fcb2a517cef8599d5db550844fdc;hp=0000000000000000000000000000000000000000;hb=824fd4371bafc487163edf33cb58b05fc4b22971;hpb=da5e8d881fe6e659d168b7ace5ab9af35541a613

diff --git a/src/word_utils.rs b/src/word_utils.rs
new file mode 100644
index 0000000..d087820
--- /dev/null
+++ b/src/word_utils.rs
@@ -0,0 +1,19 @@
+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)..]));
+        }
+    }
+
+    return None;
+}