Struct XmlParser 

pub struct XmlParser;

A utility for parsing XML content.

This struct provides helper methods for common XML parsing operations used when extracting data from EPUB files (OPF, NCX, and HTML content).

Implementations

impl XmlParser

pub fn extract_text<R: BufRead>( reader: &mut Reader<R>, buf: &mut Vec<u8>, ) -> Result<Option<String>, Box<dyn Error>>

Extracts text content from an XML reader.

Reads events from the XML reader until a text event is found or the element ends. This is useful for extracting the text content of XML elements like <title>, <creator>, etc.

Arguments

• reader - The XML reader to read events from.
• buf - A buffer for reading events (will be cleared automatically).

Returns

Returns Ok(Some(String)) if text was found, Ok(None) if no text was found before the element ended, or an error if parsing fails.

Errors

Returns an error if there is an XML parsing error.

Example

use quick_xml::Reader;
use epub_parser::utils::XmlParser;

let xml = r#"<title>My Book</title>"#;
let mut reader = Reader::from_str(xml);
let mut buf = Vec::new();

// Skip the Start event
reader.read_event_into(&mut buf).unwrap();

let text = XmlParser::extract_text(&mut reader, &mut buf).unwrap();
assert_eq!(text, Some("My Book".to_string()));