Revert^2 "Import xml-rs 0.8.3"
2fc140166d67619ad4a9ce3013e2604b8b5845aa
Change-Id: I6fdc0f5dc86abd2b5417e43bae3da28070ad8636
diff --git a/src/writer/mod.rs b/src/writer/mod.rs
new file mode 100644
index 0000000..ea1b242
--- /dev/null
+++ b/src/writer/mod.rs
@@ -0,0 +1,93 @@
+//! Contains high-level interface for an events-based XML emitter.
+//!
+//! The most important type in this module is `EventWriter` which allows writing an XML document
+//! to some output stream.
+
+pub use self::emitter::Result;
+pub use self::emitter::EmitterError as Error;
+pub use self::config::EmitterConfig;
+pub use self::events::XmlEvent;
+
+use self::emitter::Emitter;
+
+use std::io::prelude::*;
+
+mod emitter;
+mod config;
+pub mod events;
+
+/// A wrapper around an `std::io::Write` instance which emits XML document according to provided
+/// events.
+pub struct EventWriter<W> {
+ sink: W,
+ emitter: Emitter
+}
+
+impl<W: Write> EventWriter<W> {
+ /// Creates a new `EventWriter` out of an `std::io::Write` instance using the default
+ /// configuration.
+ #[inline]
+ pub fn new(sink: W) -> EventWriter<W> {
+ EventWriter::new_with_config(sink, EmitterConfig::new())
+ }
+
+ /// Creates a new `EventWriter` out of an `std::io::Write` instance using the provided
+ /// configuration.
+ #[inline]
+ pub fn new_with_config(sink: W, config: EmitterConfig) -> EventWriter<W> {
+ EventWriter {
+ sink,
+ emitter: Emitter::new(config)
+ }
+ }
+
+ /// Writes the next piece of XML document according to the provided event.
+ ///
+ /// Note that output data may not exactly correspond to the written event because
+ /// of various configuration options. For example, `XmlEvent::EndElement` may
+ /// correspond to a separate closing element or it may cause writing an empty element.
+ /// Another example is that `XmlEvent::CData` may be represented as characters in
+ /// the output stream.
+ pub fn write<'a, E>(&mut self, event: E) -> Result<()> where E: Into<XmlEvent<'a>> {
+ match event.into() {
+ XmlEvent::StartDocument { version, encoding, standalone } =>
+ self.emitter.emit_start_document(&mut self.sink, version, encoding.unwrap_or("UTF-8"), standalone),
+ XmlEvent::ProcessingInstruction { name, data } =>
+ self.emitter.emit_processing_instruction(&mut self.sink, name, data),
+ XmlEvent::StartElement { name, attributes, namespace } => {
+ self.emitter.namespace_stack_mut().push_empty().checked_target().extend(namespace.as_ref());
+ self.emitter.emit_start_element(&mut self.sink, name, &attributes)
+ }
+ XmlEvent::EndElement { name } => {
+ let r = self.emitter.emit_end_element(&mut self.sink, name);
+ self.emitter.namespace_stack_mut().try_pop();
+ r
+ }
+ XmlEvent::Comment(content) =>
+ self.emitter.emit_comment(&mut self.sink, content),
+ XmlEvent::CData(content) =>
+ self.emitter.emit_cdata(&mut self.sink, content),
+ XmlEvent::Characters(content) =>
+ self.emitter.emit_characters(&mut self.sink, content)
+ }
+ }
+
+ /// Returns a mutable reference to the underlying `Writer`.
+ ///
+ /// Note that having a reference to the underlying sink makes it very easy to emit invalid XML
+ /// documents. Use this method with care. Valid use cases for this method include accessing
+ /// methods like `Write::flush`, which do not emit new data but rather change the state
+ /// of the stream itself.
+ pub fn inner_mut(&mut self) -> &mut W {
+ &mut self.sink
+ }
+
+ /// Unwraps this `EventWriter`, returning the underlying writer.
+ ///
+ /// Note that this is a destructive operation: unwrapping a writer and then wrapping
+ /// it again with `EventWriter::new()` will create a fresh writer whose state will be
+ /// blank; for example, accumulated namespaces will be reset.
+ pub fn into_inner(self) -> W {
+ self.sink
+ }
+}