82 lines
1.9 KiB
Rust
82 lines
1.9 KiB
Rust
use hoedown::{Markdown, Html as MdHtml};
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use hoedown::renderer::html::Flags as HtmlFlags;
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use hoedown::renderer::Render;
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use result::Result;
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use error::MarkdownErrorKind;
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use libimagerror::into::IntoError;
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pub type HTML = String;
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pub fn to_html(buffer: &str) -> Result<HTML> {
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let md = Markdown::new(buffer);
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let mut html = MdHtml::new(HtmlFlags::empty(), 0);
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html.render(&md)
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.to_str()
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.map(String::from)
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.map_err(Box::new)
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.map_err(|e| MarkdownErrorKind::MarkdownRenderError.into_error_with_cause(e))
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}
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pub mod iter {
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use result::Result;
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use libimagstore::store::Entry;
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use super::HTML;
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use super::to_html;
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pub struct ToHtmlIterator<I: Iterator<Item = Entry>> {
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i: I
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}
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impl<I: Iterator<Item = Entry>> ToHtmlIterator<I> {
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fn new(i: I) -> ToHtmlIterator<I> {
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ToHtmlIterator { i: i }
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}
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}
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impl<I: Iterator<Item = Entry>> Iterator for ToHtmlIterator<I> {
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type Item = Result<HTML>;
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fn next(&mut self) -> Option<Self::Item> {
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self.i.next().map(|entry| to_html(&entry.get_content()[..]))
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}
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}
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impl<I: Iterator<Item = Entry>> From<I> for ToHtmlIterator<I> {
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fn from(obj: I) -> ToHtmlIterator<I> {
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ToHtmlIterator::new(obj)
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}
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}
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/// Iterate over `(Entry, Result<HTML>)` tuples
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pub struct WithHtmlIterator<I: Iterator<Item = Entry>> {
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i: I
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}
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impl<I: Iterator<Item = Entry>> WithHtmlIterator<I> {
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fn new(i: I) -> WithHtmlIterator<I> {
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WithHtmlIterator { i: i }
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}
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}
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impl<I: Iterator<Item = Entry>> Iterator for WithHtmlIterator<I> {
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type Item = (Entry, Result<HTML>);
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fn next(&mut self) -> Option<Self::Item> {
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self.i.next().map(|entry| {
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let html = to_html(&entry.get_content()[..]);
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(entry, html)
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})
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}
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}
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}
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