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

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This commit is contained in:
Matthias Beyer 2016-05-29 17:08:27 +02:00
parent 12369ddadf
commit db93f01ea3
1 changed files with 26 additions and 0 deletions
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26
libimagentrymarkdown/src/html.rs
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@ -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)
})
}
}
} }