XML

use xml.qweruse xml_parse, xml_texts from xml      // Quillo 0.6: only these

roxmltree = "0.20"

// Reads a sitemap and an order in XML.////   quillo run xml.qwe      then open http://localhost:8080/urlsuse "xml.qwer"let sitemap = `<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">  <url><loc>https://quillolang.org/</loc></url>  <url><loc>https://quillolang.org/docs/</loc><lastmod>2026-10-29</lastmod></url></urlset>`route GET /urls = xml_texts(sitemap, "loc")?route GET /order = xml_parse(`<order id="42"><item sku="A1" qty="2">Pen</item><item sku="B7" qty="1">Ink</item></order>`)?

//! XML read as values: feeds from partners, SOAP answers, sitemaps, invoices (UBL), SVG.//! version: 1.0.0//!//! [dependencies]//! roxmltree = "0.20"use serde_json::{json, Map, Value};fn element(n: roxmltree::Node) -> Value {    let attrs: Map<String, Value> = n.attributes().map(|a| (a.name().to_string(), Value::String(a.value().to_string()))).collect();    let children: Vec<Value> = n.children().filter(|c| c.is_element()).map(element).collect();    let text: String = n.children().filter(|c| c.is_text()).filter_map(|c| c.text()).collect::<String>();    json!({ "tag": n.tag_name().name(), "attrs": attrs, "text": text.trim(), "children": children })}fn doc(text: &str) -> Result<roxmltree::Document<'_>, String> {    roxmltree::Document::parse_with_options(text, roxmltree::ParsingOptions { allow_dtd: false, ..Default::default() }).map_err(|e| e.to_string())}/// XML text as nested maps: `{ tag, attrs, text, children }` for each element (namespaces dropped from names). DTDs are refused.pub fn xml_parse(text: &str) -> Result<Value, String> {    Ok(element(doc(text)?.root_element()))}/// The text of every element named `tag`, in document order: `xml_texts(feed, "title")`.pub fn xml_texts(text: &str, tag: &str) -> Result<Vec<String>, String> {    Ok(doc(text)?.descendants().filter(|n| n.is_element() && n.tag_name().name() == tag)        .map(|n| n.descendants().filter(|c| c.is_text()).filter_map(|c| c.text()).collect::<String>().trim().to_string()).collect())}/// An attribute of every element named `tag` that has it: `xml_attrs(svg, "path", "d")`.pub fn xml_attrs(text: &str, tag: &str, attr: &str) -> Result<Vec<String>, String> {    Ok(doc(text)?.descendants().filter(|n| n.is_element() && n.tag_name().name() == tag)        .filter_map(|n| n.attribute(attr).map(str::to_string)).collect())}/// Text made safe to put inside XML: `&`, `<`, `>`, `"` and `'` escaped.pub fn xml_escape(text: &str) -> String {    text.replace('&', "&amp;").replace('<', "&lt;").replace('>', "&gt;").replace('"', "&quot;").replace('\'', "&apos;")}