Add Parser::new_from_iter.

parser/src/parser.rs

@@ -7,7 +7,7 @@
 use crate::{
     input::{str::StrInput, Input},
     scanner::{ScanError, Scanner, Span, TScalarStyle, Token, TokenType},
-    Marker,
+    BufferedInput, Marker,
 };
 
 use std::collections::HashMap;
@@ -244,6 +244,17 @@ impl<'a> Parser<StrInput<'a>> {
     }
 }
 
+impl<T> Parser<BufferedInput<T>>
+where
+    T: Iterator<Item = char>,
+{
+    /// Create a new instance of a parser from an iterator of `char`s.
+    #[must_use]
+    pub fn new_from_iter(iter: T) -> Self {
+        Parser::new(BufferedInput::new(iter))
+    }
+}
+
 impl<T: Input> Parser<T> {
     /// Create a new instance of a parser from the given input of characters.
     pub fn new(src: T) -> Parser<T> {