Rollup merge of #43428 - waywardmonkeys:doc-fixes, r=estebank

Fix some doc/comment typos.

2 files changed, 4 insertions, 4 deletions

diff --git a/src/libcore/str/mod.rs b/src/libcore/str/mod.rs
index 1df69a1b598..95b27751a6a 100644
--- a/src/libcore/str/mod.rs
+++ b/src/libcore/str/mod.rs
@@ -847,7 +847,7 @@ macro_rules! generate_pattern_iterators {
         internal:
             $internal_iterator:ident yielding ($iterty:ty);
 
-        // Kind of delgation - either single ended or double ended
+        // Kind of delegation - either single ended or double ended
         delegate $($t:tt)*
     } => {
         $(#[$forward_iterator_attribute])*
diff --git a/src/libcore/str/pattern.rs b/src/libcore/str/pattern.rs
index 3c9c1d6cab4..c4ff95b1d6a 100644
--- a/src/libcore/str/pattern.rs
+++ b/src/libcore/str/pattern.rs
@@ -83,7 +83,7 @@ pub enum SearchStep {
     /// Note that there might be more than one `Reject` between two `Match`es,
     /// there is no requirement for them to be combined into one.
     Reject(usize, usize),
-    /// Expresses that every byte of the haystack has been visted, ending
+    /// Expresses that every byte of the haystack has been visited, ending
     /// the iteration.
     Done
 }
@@ -101,7 +101,7 @@ pub enum SearchStep {
 /// the haystack. This enables consumers of this trait to
 /// slice the haystack without additional runtime checks.
 pub unsafe trait Searcher<'a> {
-    /// Getter for the underlaying string to be searched in
+    /// Getter for the underlying string to be searched in
     ///
     /// Will always return the same `&str`
     fn haystack(&self) -> &'a str;
@@ -1153,7 +1153,7 @@ impl TwoWaySearcher {
     // The maximal suffix is a possible critical factorization (u', v') of `arr`.
     //
     // Returns `i` where `i` is the starting index of v', from the back;
-    // returns immedately when a period of `known_period` is reached.
+    // returns immediately when a period of `known_period` is reached.
     //
     // `order_greater` determines if lexical order is `<` or `>`. Both
     // orders must be computed -- the ordering with the largest `i` gives