1 files changed, 18 insertions, 0 deletions
diff --git a/base/src/format.rs b/base/src/format.rs
new file mode 100644
index 0000000..46b2da6
--- /dev/null
+++ b/base/src/format.rs
@@ -0,0 +1,18 @@
+use std::borrow::Cow;
+
+pub fn rejoin(s: &[&str], splits: &[char]) -> Cow<'static, str> {
+    let len = s.iter().map(|s| s.len()).fold(0, |a, b| a + b);
+    let mut out = s.iter()
+                   .zip(splits.iter())
+                   .fold(String::with_capacity(len), |mut s, (b, &split)| {
+                       s.push_str(b);
+                       s.push(split);
+                       s
+                   });
+    out.pop();
+    Cow::Owned(out)
+}
+
+pub fn strip_one(s: &str) -> String {
+    if s.len() >= 2 { s[1..(s.len() - 1)].to_owned() } else { String::new() }
+}