48 lines
1.6 KiB
Rust
48 lines
1.6 KiB
Rust
use std::io::Read;
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use std::str::FromStr;
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use xml::attribute::OwnedAttribute;
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use xml::reader::{EventReader, XmlEvent};
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use crate::escape;
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use super::*;
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impl ElementReader for Comment {
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fn read<R: Read>(
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r: &mut EventReader<R>,
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attrs: &[OwnedAttribute],
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) -> Result<Self, ReaderError> {
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let id = usize::from_str(&read(attrs, "id").expect("should comment id exists."))?;
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let mut comment = Comment::new(id);
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if let Some(author) = read(attrs, "author") {
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comment = comment.author(escape::escape(author.as_str()));
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};
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if let Some(date) = read(attrs, "date") {
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comment = comment.date(date);
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}
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loop {
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let e = r.next();
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match e {
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Ok(XmlEvent::StartElement {
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name, attributes, ..
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}) => {
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let e = XMLElement::from_str(&name.local_name)
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.expect("should convert to XMLElement");
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if let XMLElement::Paragraph = e {
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let p = Paragraph::read(r, &attributes)?;
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comment = comment.add_paragraph(p);
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}
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}
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Ok(XmlEvent::EndElement { name, .. }) => {
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let e = XMLElement::from_str(&name.local_name).unwrap();
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if e == XMLElement::Comment {
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return Ok(comment);
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}
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}
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Err(_) => return Err(ReaderError::XMLReadError),
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_ => {}
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}
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}
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}
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}
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