use crate::Cursor;
use lazy_static::lazy_static;
use regex::Regex;
use scraper::Html;
use stacked_errors::{
bail,
Result,
};
lazy_static! {
pub static ref RE_SPECIAL: Regex = Regex::new(r"([\-_*\[\]()~`>#+|{}\.!])").unwrap();
pub static ref RE_DOMAIN: Regex = Regex::new(r"^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$").unwrap();
}
/// `Attachment` object to store number attachment data and corresponding file name
#[derive(Debug)]
pub struct Attachment {
pub data: Cursor<Vec<u8>>,
pub name: String,
}
/// Pass any text here to be validated as HTML, breaks on validation errors
pub fn validate (text: &str) -> Result<&str> {
let fragment = Html::parse_fragment(text);
if !fragment.errors.is_empty() {
bail!(fragment.errors.join("\n"));
}
Ok(text)
}