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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/markup5ever/build.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/markup5ever/build.rs')
-rw-r--r--vendor/markup5ever/build.rs131
1 files changed, 131 insertions, 0 deletions
diff --git a/vendor/markup5ever/build.rs b/vendor/markup5ever/build.rs
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+// Copyright 2014-2017 The html5ever Project Developers. See the
+// COPYRIGHT file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+extern crate phf_codegen;
+extern crate string_cache_codegen;
+
+use std::collections::HashMap;
+use std::env;
+use std::fs::File;
+use std::io::{BufRead, BufReader, BufWriter, Write};
+use std::path::Path;
+
+mod entities;
+
+static NAMESPACES: &[(&str, &str)] = &[
+ ("", ""),
+ ("*", "*"),
+ ("html", "http://www.w3.org/1999/xhtml"),
+ ("xml", "http://www.w3.org/XML/1998/namespace"),
+ ("xmlns", "http://www.w3.org/2000/xmlns/"),
+ ("xlink", "http://www.w3.org/1999/xlink"),
+ ("svg", "http://www.w3.org/2000/svg"),
+ ("mathml", "http://www.w3.org/1998/Math/MathML"),
+];
+
+fn main() {
+ let generated = Path::new(&env::var("OUT_DIR").unwrap()).join("generated.rs");
+ let mut generated = BufWriter::new(File::create(&generated).unwrap());
+
+ named_entities_to_phf(&Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"));
+
+ // Create a string cache for local names
+ let local_names = Path::new(&env::var("CARGO_MANIFEST_DIR").unwrap()).join("local_names.txt");
+ let mut local_names_atom = string_cache_codegen::AtomType::new("LocalName", "local_name!");
+ for line in BufReader::new(File::open(&local_names).unwrap()).lines() {
+ let local_name = line.unwrap();
+ local_names_atom.atom(&local_name);
+ local_names_atom.atom(&local_name.to_ascii_lowercase());
+ }
+ local_names_atom
+ .with_macro_doc("Takes a local name as a string and returns its key in the string cache.")
+ .write_to(&mut generated)
+ .unwrap();
+
+ // Create a string cache for namespace prefixes
+ string_cache_codegen::AtomType::new("Prefix", "namespace_prefix!")
+ .with_macro_doc("Takes a namespace prefix string and returns its key in a string cache.")
+ .atoms(NAMESPACES.iter().map(|&(prefix, _url)| prefix))
+ .write_to(&mut generated)
+ .unwrap();
+
+ // Create a string cache for namespace urls
+ string_cache_codegen::AtomType::new("Namespace", "namespace_url!")
+ .with_macro_doc("Takes a namespace url string and returns its key in a string cache.")
+ .atoms(NAMESPACES.iter().map(|&(_prefix, url)| url))
+ .write_to(&mut generated)
+ .unwrap();
+
+ writeln!(
+ generated,
+ r#"
+ /// Maps the input of [`namespace_prefix!`](macro.namespace_prefix.html) to
+ /// the output of [`namespace_url!`](macro.namespace_url.html).
+ ///
+ #[macro_export] macro_rules! ns {{
+ "#
+ )
+ .unwrap();
+ for &(prefix, url) in NAMESPACES {
+ writeln!(
+ generated,
+ "({}) => {{ namespace_url!({:?}) }};",
+ prefix, url
+ )
+ .unwrap();
+ }
+ writeln!(generated, "}}").unwrap();
+}
+
+fn named_entities_to_phf(to: &Path) {
+ let mut entities: HashMap<&str, (u32, u32)> = entities::NAMED_ENTITIES
+ .iter()
+ .map(|(name, cp1, cp2)| {
+ assert!(name.starts_with('&'));
+ (&name[1..], (*cp1, *cp2))
+ })
+ .collect();
+
+ // Add every missing prefix of those keys, mapping to NULL characters.
+ for key in entities.keys().cloned().collect::<Vec<_>>() {
+ for n in 1..key.len() {
+ entities.entry(&key[..n]).or_insert((0, 0));
+ }
+ }
+ entities.insert("", (0, 0));
+
+ let mut phf_map = phf_codegen::Map::new();
+ for (key, value) in entities {
+ phf_map.entry(key, &format!("{:?}", value));
+ }
+
+ let mut file = File::create(to).unwrap();
+ writeln!(
+ &mut file,
+ r#"
+/// A map of entity names to their codepoints. The second codepoint will
+/// be 0 if the entity contains a single codepoint. Entities have their preceeding '&' removed.
+///
+/// # Examples
+///
+/// ```
+/// use markup5ever::data::NAMED_ENTITIES;
+///
+/// assert_eq!(NAMED_ENTITIES.get("gt;").unwrap(), &(62, 0));
+/// ```
+"#
+ )
+ .unwrap();
+ writeln!(
+ &mut file,
+ "pub static NAMED_ENTITIES: Map<&'static str, (u32, u32)> = {};",
+ phf_map.build(),
+ )
+ .unwrap();
+}