1 files changed, 0 insertions, 270 deletions
diff --git a/vendor/encode_unicode/src/utf16_iterators.rs b/vendor/encode_unicode/src/utf16_iterators.rs
deleted file mode 100644
index 7adb5ac..0000000
--- a/vendor/encode_unicode/src/utf16_iterators.rs
+++ /dev/null
@@ -1,270 +0,0 @@
-/* Copyright 2016 The encode_unicode Developers
- *
- * Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
- * http://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 traits::CharExt;
-use utf16_char::Utf16Char;
-use errors::EmptyStrError;
-extern crate core;
-use self::core::fmt;
-use self::core::borrow::Borrow;
-
-// Invalid values that says the field is consumed or empty.
-const FIRST_USED: u16 = 0x_dc_00;
-const SECOND_USED: u16 = 0;
-
-/// Iterate over the units of the UTF-16 representation of a codepoint.
-#[derive(Clone)]
-pub struct Utf16Iterator {
-    first: u16,
-    second: u16,
-}
-impl From<char> for Utf16Iterator {
-    fn from(c: char) -> Self {
-        let (first, second) = c.to_utf16_tuple();
-        Utf16Iterator{ first: first,  second: second.unwrap_or(SECOND_USED) }
-    }
-}
-impl From<Utf16Char> for Utf16Iterator {
-    fn from(uc: Utf16Char) -> Self {
-        let (first, second) = uc.to_tuple();
-        Utf16Iterator{ first: first,  second: second.unwrap_or(SECOND_USED) }
-    }
-}
-impl Iterator for Utf16Iterator {
-    type Item=u16;
-    fn next(&mut self) -> Option<u16> {
-        match (self.first, self.second) {
-            (FIRST_USED, SECOND_USED)  =>  {                            None        },
-            (FIRST_USED, second     )  =>  {self.second = SECOND_USED;  Some(second)},
-            (first     ,      _     )  =>  {self.first = FIRST_USED;    Some(first )},
-        }
-    }
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        (self.len(), Some(self.len()))
-    }
-}
-impl ExactSizeIterator for Utf16Iterator {
-    fn len(&self) -> usize {
-        (if self.first == FIRST_USED {0} else {1}) +
-        (if self.second == SECOND_USED {0} else {1})
-    }
-}
-impl fmt::Debug for Utf16Iterator {
-    fn fmt(&self,  fmtr: &mut fmt::Formatter) -> fmt::Result {
-        let mut clone = self.clone();
-        match (clone.next(), clone.next()) {
-            (Some(one), None)  => write!(fmtr, "[{}]", one),
-            (Some(a), Some(b)) => write!(fmtr, "[{}, {}]", a, b),
-            (None,  _)         => write!(fmtr, "[]"),
-        }
-    }
-}
-
-
-
-/// Converts an iterator of `Utf16Char` (or `&Utf16Char`)
-/// to an iterator of `u16`s.  
-/// Is equivalent to calling `.flat_map()` on the original iterator,
-/// but the returned iterator is about twice as fast.
-///
-/// The exact number of units cannot be known in advance, but `size_hint()`
-/// gives the possible range.
-///
-/// # Examples
-///
-/// From iterator of values:
-///
-/// ```
-/// use encode_unicode::{iter_units, CharExt};
-///
-/// let iterator = "foo".chars().map(|c| c.to_utf16() );
-/// let mut units = [0; 4];
-/// for (u,dst) in iter_units(iterator).zip(&mut units) {*dst=u;}
-/// assert_eq!(units, ['f' as u16, 'o' as u16, 'o' as u16, 0]);
-/// ```
-///
-/// From iterator of references:
-///
-#[cfg_attr(feature="std", doc=" ```")]
-#[cfg_attr(not(feature="std"), doc=" ```no_compile")]
-/// use encode_unicode::{iter_units, CharExt, Utf16Char};
-///
-/// // (💣 takes two units)
-/// let chars: Vec<Utf16Char> = "💣 bomb 💣".chars().map(|c| c.to_utf16() ).collect();
-/// let units: Vec<u16> = iter_units(&chars).collect();
-/// let flat_map: Vec<u16> = chars.iter().flat_map(|u16c| *u16c ).collect();
-/// assert_eq!(units, flat_map);
-/// ```
-pub fn iter_units<U:Borrow<Utf16Char>, I:IntoIterator<Item=U>>
-(iterable: I) -> Utf16CharSplitter<U, I::IntoIter> {
-    Utf16CharSplitter{ inner: iterable.into_iter(),  prev_second: 0 }
-}
-
-/// The iterator type returned by `iter_units()`
-#[derive(Clone)]
-pub struct Utf16CharSplitter<U:Borrow<Utf16Char>, I:Iterator<Item=U>> {
-    inner: I,
-    prev_second: u16,
-}
-impl<I:Iterator<Item=Utf16Char>> From<I> for Utf16CharSplitter<Utf16Char,I> {
-    /// A less generic constructor than `iter_units()`
-    fn from(iter: I) -> Self {
-        iter_units(iter)
-    }
-}
-impl<U:Borrow<Utf16Char>, I:Iterator<Item=U>> Utf16CharSplitter<U,I> {
-    /// Extracts the source iterator.
-    ///
-    /// Note that `iter_units(iter.into_inner())` is not a no-op:  
-    /// If the last returned unit from `next()` was a leading surrogate,
-    /// the trailing surrogate is lost.
-    pub fn into_inner(self) -> I {
-        self.inner
-    }
-}
-impl<U:Borrow<Utf16Char>, I:Iterator<Item=U>> Iterator for Utf16CharSplitter<U,I> {
-    type Item = u16;
-    fn next(&mut self) -> Option<Self::Item> {
-        if self.prev_second == 0 {
-            self.inner.next().map(|u16c| {
-                let units = u16c.borrow().to_array();
-                self.prev_second = units[1];
-                units[0]
-            })
-        } else {
-            let prev_second = self.prev_second;
-            self.prev_second = 0;
-            Some(prev_second)
-        }
-    }
-    fn size_hint(&self) -> (usize,Option<usize>) {
-        // Doesn't need to handle unlikely overflows correctly because
-        // size_hint() cannot be relied upon anyway. (the trait isn't unsafe)
-        let (min, max) = self.inner.size_hint();
-        let add = if self.prev_second == 0 {0} else {1};
-        (min.wrapping_add(add), max.map(|max| max.wrapping_mul(2).wrapping_add(add) ))
-    }
-}
-
-
-
-/// An iterator over the codepoints in a `str` represented as `Utf16Char`.
-#[derive(Clone)]
-pub struct Utf16CharIndices<'a>{
-    str: &'a str,
-    index: usize,
-}
-impl<'a> From<&'a str> for Utf16CharIndices<'a> {
-    fn from(s: &str) -> Utf16CharIndices {
-        Utf16CharIndices{str: s, index: 0}
-    }
-}
-impl<'a> Utf16CharIndices<'a> {
-    /// Extract the remainder of the source `str`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use encode_unicode::{StrExt, Utf16Char};
-    /// let mut iter = "abc".utf16char_indices();
-    /// assert_eq!(iter.next_back(), Some((2, Utf16Char::from('c'))));
-    /// assert_eq!(iter.next(), Some((0, Utf16Char::from('a'))));
-    /// assert_eq!(iter.as_str(), "b");
-    /// ```
-    pub fn as_str(&self) -> &'a str {
-        &self.str[self.index..]
-    }
-}
-impl<'a> Iterator for Utf16CharIndices<'a> {
-    type Item = (usize,Utf16Char);
-    fn next(&mut self) -> Option<(usize,Utf16Char)> {
-        match Utf16Char::from_str_start(&self.str[self.index..]) {
-            Ok((u16c, bytes)) => {
-                let item = (self.index, u16c);
-                self.index += bytes;
-                Some(item)
-            },
-            Err(EmptyStrError) => None
-        }
-    }
-    fn size_hint(&self) -> (usize,Option<usize>) {
-        let len = self.str.len() - self.index;
-        // For len+3 to overflow, the slice must fill all but two bytes of
-        // addressable memory, and size_hint() doesn't need to be correct.
-        (len.wrapping_add(3)/4, Some(len))
-    }
-}
-impl<'a> DoubleEndedIterator for Utf16CharIndices<'a> {
-    fn next_back(&mut self) -> Option<(usize,Utf16Char)> {
-        if self.index < self.str.len() {
-            let rev = self.str.bytes().rev();
-            let len = 1 + rev.take_while(|b| b & 0b1100_0000 == 0b1000_0000 ).count();
-            let starts = self.str.len() - len;
-            let (u16c,_) = Utf16Char::from_str_start(&self.str[starts..]).unwrap();
-            self.str = &self.str[..starts];
-            Some((starts, u16c))
-        } else {
-            None
-        }
-    }
-}
-impl<'a> fmt::Debug for Utf16CharIndices<'a> {
-    fn fmt(&self,  fmtr: &mut fmt::Formatter) -> fmt::Result {
-        fmtr.debug_tuple("Utf16CharIndices")
-            .field(&self.index)
-            .field(&self.as_str())
-            .finish()
-    }
-}
-
-
-/// An iterator over the codepoints in a `str` represented as `Utf16Char`.
-#[derive(Clone)]
-pub struct Utf16Chars<'a>(Utf16CharIndices<'a>);
-impl<'a> From<&'a str> for Utf16Chars<'a> {
-    fn from(s: &str) -> Utf16Chars {
-        Utf16Chars(Utf16CharIndices::from(s))
-    }
-}
-impl<'a> Utf16Chars<'a> {
-    /// Extract the remainder of the source `str`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use encode_unicode::{StrExt, Utf16Char};
-    /// let mut iter = "abc".utf16chars();
-    /// assert_eq!(iter.next(), Some(Utf16Char::from('a')));
-    /// assert_eq!(iter.next_back(), Some(Utf16Char::from('c')));
-    /// assert_eq!(iter.as_str(), "b");
-    /// ```
-    pub fn as_str(&self) -> &'a str {
-        self.0.as_str()
-    }
-}
-impl<'a> Iterator for Utf16Chars<'a> {
-    type Item = Utf16Char;
-    fn next(&mut self) -> Option<Utf16Char> {
-        self.0.next().map(|(_,u16c)| u16c )
-    }
-    fn size_hint(&self) -> (usize,Option<usize>) {
-        self.0.size_hint()
-    }
-}
-impl<'a> DoubleEndedIterator for Utf16Chars<'a> {
-    fn next_back(&mut self) -> Option<Utf16Char> {
-        self.0.next_back().map(|(_,u16c)| u16c )
-    }
-}
-impl<'a> fmt::Debug for Utf16Chars<'a> {
-    fn fmt(&self,  fmtr: &mut fmt::Formatter) -> fmt::Result {
-        fmtr.debug_tuple("Utf16Chars")
-            .field(&self.as_str())
-            .finish()
-    }
-}