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-rw-r--r--src/serialize/mod.rs256
1 files changed, 0 insertions, 256 deletions
diff --git a/src/serialize/mod.rs b/src/serialize/mod.rs
deleted file mode 100644
index 3a57b47..0000000
--- a/src/serialize/mod.rs
+++ /dev/null
@@ -1,256 +0,0 @@
-// 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.
-
-use log::warn;
-pub use markup5ever::serialize::{AttrRef, Serialize, Serializer, TraversalScope};
-use markup5ever::{local_name, namespace_url, ns};
-use std::default::Default;
-use std::io::{self, Write};
-
-use crate::{LocalName, QualName};
-
-pub fn serialize<Wr, T>(writer: Wr, node: &T, opts: SerializeOpts) -> io::Result<()>
-where
- Wr: Write,
- T: Serialize,
-{
- let mut ser = HtmlSerializer::new(writer, opts.clone());
- node.serialize(&mut ser, opts.traversal_scope)
-}
-
-#[derive(Clone)]
-pub struct SerializeOpts {
- /// Is scripting enabled?
- pub scripting_enabled: bool,
-
- /// Serialize the root node? Default: ChildrenOnly
- pub traversal_scope: TraversalScope,
-
- /// If the serializer is asked to serialize an invalid tree, the default
- /// behavior is to panic in the event that an `end_elem` is created without a
- /// matching `start_elem`. Setting this to true will prevent those panics by
- /// creating a default parent on the element stack. No extra start elem will
- /// actually be written. Default: false
- pub create_missing_parent: bool,
-}
-
-impl Default for SerializeOpts {
- fn default() -> SerializeOpts {
- SerializeOpts {
- scripting_enabled: true,
- traversal_scope: TraversalScope::ChildrenOnly(None),
- create_missing_parent: false,
- }
- }
-}
-
-#[derive(Default)]
-struct ElemInfo {
- html_name: Option<LocalName>,
- ignore_children: bool
-}
-
-pub struct HtmlSerializer<Wr: Write> {
- pub writer: Wr,
- opts: SerializeOpts,
- stack: Vec<ElemInfo>,
-}
-
-fn tagname(name: &QualName) -> LocalName {
- match name.ns {
- ns!(html) | ns!(mathml) | ns!(svg) => (),
- ref ns => {
- // FIXME(#122)
- warn!("node with weird namespace {:?}", ns);
- },
- }
-
- name.local.clone()
-}
-
-impl<Wr: Write> HtmlSerializer<Wr> {
- pub fn new(writer: Wr, opts: SerializeOpts) -> Self {
- let html_name = match opts.traversal_scope {
- TraversalScope::IncludeNode | TraversalScope::ChildrenOnly(None) => None,
- TraversalScope::ChildrenOnly(Some(ref n)) => Some(tagname(n)),
- };
- HtmlSerializer {
- writer,
- opts,
- stack: vec![ElemInfo {
- html_name,
- ignore_children: false,
- }],
- }
- }
-
- fn parent(&mut self) -> &mut ElemInfo {
- if self.stack.is_empty() {
- if self.opts.create_missing_parent {
- warn!("ElemInfo stack empty, creating new parent");
- self.stack.push(Default::default());
- } else {
- panic!("no parent ElemInfo")
- }
- }
- self.stack.last_mut().unwrap()
- }
-
- fn write_escaped(&mut self, text: &str, attr_mode: bool) -> io::Result<()> {
- for c in text.chars() {
- match c {
- '&' => self.writer.write_all(b"&amp;"),
- '\u{00A0}' => self.writer.write_all(b"&nbsp;"),
- '"' if attr_mode => self.writer.write_all(b"&quot;"),
- '<' if !attr_mode => self.writer.write_all(b"&lt;"),
- '>' if !attr_mode => self.writer.write_all(b"&gt;"),
- c => self.writer.write_fmt(format_args!("{}", c)),
- }?;
- }
- Ok(())
- }
-}
-
-impl<Wr: Write> Serializer for HtmlSerializer<Wr> {
- fn start_elem<'a, AttrIter>(&mut self, name: QualName, attrs: AttrIter) -> io::Result<()>
- where
- AttrIter: Iterator<Item = AttrRef<'a>>,
- {
- let html_name = match name.ns {
- ns!(html) => Some(name.local.clone()),
- _ => None,
- };
-
- if self.parent().ignore_children {
- self.stack.push(ElemInfo {
- html_name,
- ignore_children: true,
- });
- return Ok(());
- }
-
- self.writer.write_all(b"<")?;
- self.writer.write_all(tagname(&name).as_bytes())?;
- for (name, value) in attrs {
- self.writer.write_all(b" ")?;
-
- match name.ns {
- ns!() => (),
- ns!(xml) => self.writer.write_all(b"xml:")?,
- ns!(xmlns) => {
- if name.local != local_name!("xmlns") {
- self.writer.write_all(b"xmlns:")?;
- }
- },
- ns!(xlink) => self.writer.write_all(b"xlink:")?,
- ref ns => {
- // FIXME(#122)
- warn!("attr with weird namespace {:?}", ns);
- self.writer.write_all(b"unknown_namespace:")?;
- },
- }
-
- self.writer.write_all(name.local.as_bytes())?;
- self.writer.write_all(b"=\"")?;
- self.write_escaped(value, true)?;
- self.writer.write_all(b"\"")?;
- }
- self.writer.write_all(b">")?;
-
- let ignore_children = name.ns == ns!(html) &&
- match name.local {
- local_name!("area") |
- local_name!("base") |
- local_name!("basefont") |
- local_name!("bgsound") |
- local_name!("br") |
- local_name!("col") |
- local_name!("embed") |
- local_name!("frame") |
- local_name!("hr") |
- local_name!("img") |
- local_name!("input") |
- local_name!("keygen") |
- local_name!("link") |
- local_name!("meta") |
- local_name!("param") |
- local_name!("source") |
- local_name!("track") |
- local_name!("wbr") => true,
- _ => false,
- };
-
- self.stack.push(ElemInfo {
- html_name,
- ignore_children,
- });
-
- Ok(())
- }
-
- fn end_elem(&mut self, name: QualName) -> io::Result<()> {
- let info = match self.stack.pop() {
- Some(info) => info,
- None if self.opts.create_missing_parent => {
- warn!("missing ElemInfo, creating default.");
- Default::default()
- },
- _ => panic!("no ElemInfo"),
- };
- if info.ignore_children {
- return Ok(());
- }
-
- self.writer.write_all(b"</")?;
- self.writer.write_all(tagname(&name).as_bytes())?;
- self.writer.write_all(b">")
- }
-
- fn write_text(&mut self, text: &str) -> io::Result<()> {
- let escape = match self.parent().html_name {
- Some(local_name!("style")) |
- Some(local_name!("script")) |
- Some(local_name!("xmp")) |
- Some(local_name!("iframe")) |
- Some(local_name!("noembed")) |
- Some(local_name!("noframes")) |
- Some(local_name!("plaintext")) => false,
-
- Some(local_name!("noscript")) => !self.opts.scripting_enabled,
-
- _ => true,
- };
-
- if escape {
- self.write_escaped(text, false)
- } else {
- self.writer.write_all(text.as_bytes())
- }
- }
-
- fn write_comment(&mut self, text: &str) -> io::Result<()> {
- self.writer.write_all(b"<!--")?;
- self.writer.write_all(text.as_bytes())?;
- self.writer.write_all(b"-->")
- }
-
- fn write_doctype(&mut self, name: &str) -> io::Result<()> {
- self.writer.write_all(b"<!DOCTYPE ")?;
- self.writer.write_all(name.as_bytes())?;
- self.writer.write_all(b">")
- }
-
- fn write_processing_instruction(&mut self, target: &str, data: &str) -> io::Result<()> {
- self.writer.write_all(b"<?")?;
- self.writer.write_all(target.as_bytes())?;
- self.writer.write_all(b" ")?;
- self.writer.write_all(data.as_bytes())?;
- self.writer.write_all(b">")
- }
-}
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