HTML to text

use html_text.qweruse html_to_text, html_to_bare_text from html_text      // Quillo 0.6: only these

html2text = "0.17"

// The plain-text part of an HTML email, made from the HTML, and a one-line preview.////   quillo run html_text.qwe      then open http://localhost:8080/email.txtuse "html_text.qwer"let email = "<h1>Your order has shipped</h1><p>Hi Ada, your order <b>#1042</b> is on its way. <a href=\"https://shop.example.com/orders/1042\">Track it here</a>.</p><table><tr><th>Item</th><th>Qty</th><th>Price</th></tr><tr><td>Notebook</td><td>2</td><td>€9.00</td></tr><tr><td>Fountain pen</td><td>1</td><td>€1,225.00</td></tr></table><ul><li>Arrives Thursday</li><li>Signed for at the door</li></ul><p>Questions? <a href=\"mailto:help@example.com\">Write to us</a>.</p>"route GET /email.txt = respond(200, html_to_text(email, 72)?, { "content-type": "text/plain; charset=utf-8" })route GET /preview = { preview: html_preview(email, 60)?, bare: html_to_bare_text("<p>Hello <b>there</b>, <a href='/x'>friend</a></p>", 0)? }

//! HTML as readable plain text, for the text part of an email, a terminal or an SMS: headings, lists and tables laid out, links listed at the end.//! version: 1.0.0//!//! [dependencies]//! html2text = "0.17"use html2text::render::TrivialDecorator;const MAX: usize = 5_000_000;fn check(html: &str) -> Result<(), String> {    if html.len() > MAX { Err("HTML up to 5 MB".into()) } else { Ok(()) }}fn width(w: i64) -> usize {    if w <= 0 { 10_000 } else { w.clamp(20, 10_000) as usize }}/// `html` as plain text wrapped at `width` characters (0: no wrapping): `# Headings`, `* lists`, tables in columns, **bold** and `[1]`-style link marks, with the links listed at the end, as the text part of an email has them.pub fn html_to_text(html: &str, width: i64) -> Result<String, String> {    check(html)?;    html2text::config::plain().link_footnotes(true).string_from_read(html.as_bytes(), self::width(width)).map_err(|e| e.to_string())}/// `html` as plain text with no marks at all: no `#`, `*` or link list, only the words, laid out in lines, for search indexes and previews.pub fn html_to_bare_text(html: &str, width: i64) -> Result<String, String> {    check(html)?;    html2text::config::with_decorator(TrivialDecorator::new()).string_from_read(html.as_bytes(), self::width(width)).map_err(|e| e.to_string())}/// The first `chars` characters of a page's text on one line, for a list of messages or a meta description; "…" at the end when cut.pub fn html_preview(html: &str, chars: i64) -> Result<String, String> {    let t = html_to_bare_text(html, 0)?;    let one = t.split_whitespace().collect::<Vec<_>>().join(" ");    let n = chars.clamp(1, 10_000) as usize;    Ok(if one.chars().count() <= n { one } else { one.chars().take(n - 1).collect::<String>().trim_end().to_string() + "…" })}