Add WithHtmlIterator to iterate over (Entry, Result<HTML>) tuples

2016-05-29 17:08:27 +02:00 · 2016-05-29 17:08:27 +02:00 · db93f01ea3
commit db93f01ea3
parent 12369ddadf
1 changed files with 26 additions and 0 deletions
--- a/libimagentrymarkdown/src/html.rs
+++ b/libimagentrymarkdown/src/html.rs
@ -53,4 +53,30 @@ pub mod iter {

    }

+
+    /// Iterate over `(Entry, Result<HTML>)` tuples
+    pub struct WithHtmlIterator<I: Iterator<Item = Entry>> {
+        i: I
+    }
+
+    impl<I: Iterator<Item = Entry>> WithHtmlIterator<I> {
+
+        fn new(i: I) -> WithHtmlIterator<I> {
+            WithHtmlIterator { i: i }
+        }
+
+    }
+
+    impl<I: Iterator<Item = Entry>> Iterator for WithHtmlIterator<I> {
+        type Item = (Entry, Result<HTML>);
+
+        fn next(&mut self) -> Option<Self::Item> {
+            self.i.next().map(|entry| {
+                let html = to_html(&entry.get_content()[..]);
+                (entry, html)
+            })
+        }
+
+    }
+
 }