1 files changed, 118 insertions, 0 deletions
diff --git a/src/page.rs b/src/page.rs
new file mode 100644
index 0000000..b864640
--- /dev/null
+++ b/src/page.rs
@@ -0,0 +1,118 @@
+use std::io::BufRead;
+use std::str;
+
+use quick_xml::reader::Reader;
+use quick_xml::events::Event;
+
+use errors::Result;
+use xmlutil::{FromXml, element_text};
+use revision::Revision;
+
+#[derive(Debug, Default, Clone, PartialEq, Serialize, Deserialize)]
+pub struct Page {
+    pub namespace: i32,
+    pub title: String,
+    pub redirect: Option<String>,
+    pub revision: Revision,
+}
+
+impl FromXml for Page {
+    fn from_xml<B: BufRead>(reader: &mut Reader<B>) -> Result<Self> {
+        let mut page = Page::default();
+        let mut buf = Vec::new();
+
+        loop {
+            match reader.read_event(&mut buf) {
+                Ok(Event::Start(ref e)) => {
+                    match e.name() {
+                        b"title" => {
+                            let res = element_text(reader);
+                            page.title = res?;
+                        },
+                        b"namespace" => {
+                            let res = element_text(reader);
+                            page.namespace = res?.parse()?;
+                        },
+                        b"revision" => {
+                            match Revision::from_xml(reader) {
+                                Ok(rev) => {
+                                    page.revision = rev;
+                                },
+                                Err(err) => bail!(err),
+                            }
+                        },
+                        _ => (),
+                    }
+                },
+                Ok(Event::Empty(e)) => {
+                    match e.name() {
+                        b"redirect" => {
+                            for attr in e.attributes().with_checks(false) {
+                                if let Ok(attr) = attr {
+                                    if attr.key == b"title" {
+                                        page.redirect = Some(str::from_utf8(attr.value)?.into());
+                                    }
+                                }
+                            }
+                        },
+                        _ => (),
+                    }
+                },
+                Ok(Event::End(e)) => {
+                    if e.name() == b"page" {
+                        return Ok(page)
+                    }
+                },
+                Err(err) => bail!(err),
+                _ => (),
+            }
+        }
+    }
+}
+
+pub struct PageIter<B: BufRead> {
+    reader: Reader<B>,
+    buf: Vec<u8>,
+}
+
+impl<B: BufRead> Iterator for PageIter<B> {
+    type Item = Page;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        loop {
+            match self.reader.read_event(&mut self.buf) {
+                Ok(Event::Start(ref e)) => {
+                    match e.name() {
+                        b"page" => {
+                            match Page::from_xml(&mut self.reader) {
+                                Ok(page) => {
+                                    return Some(page)
+                                },
+                                Err(err) => {
+                                    println!("parse error: {}", err);
+                                    return None
+                                }
+                            }
+                        }
+                        _ => (),
+                    }
+                },
+                Ok(Event::Eof) => return None,
+                Err(err) => {
+                    println!("parse error: {}", err);
+                    return None
+                }
+                _ => (),
+            }
+        }
+    }
+}
+
+impl<B: BufRead> PageIter<B> {
+    pub fn new(reader: Reader<B>) -> Self {
+        PageIter {
+            reader,
+            buf: Vec::new(),
+        }
+    }
+}