initial commit

src/header.rs

@@ -0,0 +1,58 @@
+use ascii::AsciiString;
+use error::Error;
+use std::str::FromStr;
+
+#[derive(Debug, Clone)]
+/// Wrapper type for a header line.
+pub struct Header {
+    line: AsciiString,
+    index: usize,
+}
+
+impl Header {
+    /// The header name.
+    ///
+    /// ```
+    /// let header = "X-Forwarded-For: 127.0.0.1".parse::<ureq::Header>().unwrap();
+    /// assert_eq!("X-Forwarded-For", header.name());
+    /// ```
+    pub fn name(&self) -> &str {
+        &self.line.as_str()[0..self.index]
+    }
+
+    /// The header value.
+    ///
+    /// ```
+    /// let header = "X-Forwarded-For: 127.0.0.1".parse::<ureq::Header>().unwrap();
+    /// assert_eq!("127.0.0.1", header.value());
+    /// ```
+    pub fn value(&self) -> &str {
+        &self.line.as_str()[self.index + 1..].trim()
+    }
+
+    /// Compares the given str to the header name ignoring case.
+    ///
+    /// ```
+    /// let header = "X-Forwarded-For: 127.0.0.1".parse::<ureq::Header>().unwrap();
+    /// assert!(header.is_name("x-forwarded-for"));
+    /// ```
+    pub fn is_name(&self, other: &str) -> bool {
+        self.name().eq_ignore_ascii_case(other)
+    }
+}
+
+impl FromStr for Header {
+    type Err = Error;
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        //
+        let line = AsciiString::from_str(s).map_err(|_| Error::BadHeader)?;
+        let index = s.find(":").ok_or_else(|| Error::BadHeader)?;
+
+        // no value?
+        if index >= s.len() {
+            return Err(Error::BadHeader);
+        }
+
+        Ok(Header { line, index })
+    }
+}