2462 lines
92 KiB
Rust
2462 lines
92 KiB
Rust
// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
|
||
// file at the top-level directory of this distribution and at
|
||
// http://rust-lang.org/COPYRIGHT.
|
||
//
|
||
// 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.
|
||
//
|
||
// ignore-lexer-test FIXME #15679
|
||
|
||
/*!
|
||
|
||
Unicode string manipulation (`str` type)
|
||
|
||
# Basic Usage
|
||
|
||
Rust's string type is one of the core primitive types of the language. While
|
||
represented by the name `str`, the name `str` is not actually a valid type in
|
||
Rust. Each string must also be decorated with a pointer. `String` is used
|
||
for an owned string, so there is only one commonly-used `str` type in Rust:
|
||
`&str`.
|
||
|
||
`&str` is the borrowed string type. This type of string can only be created
|
||
from other strings, unless it is a static string (see below). As the word
|
||
"borrowed" implies, this type of string is owned elsewhere, and this string
|
||
cannot be moved out of.
|
||
|
||
As an example, here's some code that uses a string.
|
||
|
||
```rust
|
||
fn main() {
|
||
let borrowed_string = "This string is borrowed with the 'static lifetime";
|
||
}
|
||
```
|
||
|
||
From the example above, you can see that Rust's string literals have the
|
||
`'static` lifetime. This is akin to C's concept of a static string.
|
||
|
||
String literals are allocated statically in the rodata of the
|
||
executable/library. The string then has the type `&'static str` meaning that
|
||
the string is valid for the `'static` lifetime, otherwise known as the
|
||
lifetime of the entire program. As can be inferred from the type, these static
|
||
strings are not mutable.
|
||
|
||
# Mutability
|
||
|
||
Many languages have immutable strings by default, and Rust has a particular
|
||
flavor on this idea. As with the rest of Rust types, strings are immutable by
|
||
default. If a string is declared as `mut`, however, it may be mutated. This
|
||
works the same way as the rest of Rust's type system in the sense that if
|
||
there's a mutable reference to a string, there may only be one mutable reference
|
||
to that string. With these guarantees, strings can easily transition between
|
||
being mutable/immutable with the same benefits of having mutable strings in
|
||
other languages.
|
||
|
||
# Representation
|
||
|
||
Rust's string type, `str`, is a sequence of unicode scalar values encoded as a
|
||
stream of UTF-8 bytes. All strings are guaranteed to be validly encoded UTF-8
|
||
sequences. Additionally, strings are not null-terminated and can contain null
|
||
bytes.
|
||
|
||
The actual representation of strings have direct mappings to vectors: `&str`
|
||
is the same as `&[u8]`.
|
||
|
||
*/
|
||
|
||
#![doc(primitive = "str")]
|
||
|
||
use core::prelude::*;
|
||
|
||
use core::default::Default;
|
||
use core::fmt;
|
||
use core::cmp;
|
||
use core::iter::AdditiveIterator;
|
||
use core::mem;
|
||
|
||
use {Collection, MutableSeq};
|
||
use hash;
|
||
use string::String;
|
||
use unicode;
|
||
use vec::Vec;
|
||
|
||
pub use core::str::{from_utf8, CharEq, Chars, CharOffsets};
|
||
pub use core::str::{Bytes, CharSplits};
|
||
pub use core::str::{CharSplitsN, AnyLines, MatchIndices, StrSplits};
|
||
pub use core::str::{eq_slice, is_utf8, is_utf16, Utf16Items};
|
||
pub use core::str::{Utf16Item, ScalarValue, LoneSurrogate, utf16_items};
|
||
pub use core::str::{truncate_utf16_at_nul, utf8_char_width, CharRange};
|
||
pub use core::str::{Str, StrSlice};
|
||
pub use unicode::str::{UnicodeStrSlice, Words, Graphemes, GraphemeIndices};
|
||
|
||
/*
|
||
Section: Creating a string
|
||
*/
|
||
|
||
/// Deprecated. Replaced by `String::from_utf8`
|
||
#[deprecated = "Replaced by `String::from_utf8`"]
|
||
pub fn from_utf8_owned(vv: Vec<u8>) -> Result<String, Vec<u8>> {
|
||
String::from_utf8(vv)
|
||
}
|
||
|
||
/// Deprecated. Replaced by `String::from_byte`
|
||
#[deprecated = "Replaced by String::from_byte"]
|
||
pub fn from_byte(b: u8) -> String {
|
||
assert!(b < 128u8);
|
||
String::from_char(1, b as char)
|
||
}
|
||
|
||
/// Deprecated. Use `String::from_char` or `char::to_string()` instead
|
||
#[deprecated = "use String::from_char or char.to_string()"]
|
||
pub fn from_char(ch: char) -> String {
|
||
String::from_char(1, ch)
|
||
}
|
||
|
||
/// Deprecated. Replaced by `String::from_chars`
|
||
#[deprecated = "use String::from_chars instead"]
|
||
pub fn from_chars(chs: &[char]) -> String {
|
||
chs.iter().map(|c| *c).collect()
|
||
}
|
||
|
||
/// Methods for vectors of strings
|
||
pub trait StrVector {
|
||
/// Concatenate a vector of strings.
|
||
///
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let first = "Restaurant at the End of the".to_string();
|
||
/// let second = " Universe".to_string();
|
||
/// let string_vec = vec![first, second];
|
||
/// assert_eq!(string_vec.concat(), "Restaurant at the End of the Universe".to_string());
|
||
/// ```
|
||
fn concat(&self) -> String;
|
||
|
||
/// Concatenate a vector of strings, placing a given separator between each.
|
||
///
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let first = "Roast".to_string();
|
||
/// let second = "Sirloin Steak".to_string();
|
||
/// let string_vec = vec![first, second];
|
||
/// assert_eq!(string_vec.connect(", "), "Roast, Sirloin Steak".to_string());
|
||
/// ```
|
||
fn connect(&self, sep: &str) -> String;
|
||
}
|
||
|
||
impl<'a, S: Str> StrVector for &'a [S] {
|
||
fn concat(&self) -> String {
|
||
if self.is_empty() {
|
||
return String::new();
|
||
}
|
||
|
||
// `len` calculation may overflow but push_str will check boundaries
|
||
let len = self.iter().map(|s| s.as_slice().len()).sum();
|
||
|
||
let mut result = String::with_capacity(len);
|
||
|
||
for s in self.iter() {
|
||
result.push_str(s.as_slice())
|
||
}
|
||
|
||
result
|
||
}
|
||
|
||
fn connect(&self, sep: &str) -> String {
|
||
if self.is_empty() {
|
||
return String::new();
|
||
}
|
||
|
||
// concat is faster
|
||
if sep.is_empty() {
|
||
return self.concat();
|
||
}
|
||
|
||
// this is wrong without the guarantee that `self` is non-empty
|
||
// `len` calculation may overflow but push_str but will check boundaries
|
||
let len = sep.len() * (self.len() - 1)
|
||
+ self.iter().map(|s| s.as_slice().len()).sum();
|
||
let mut result = String::with_capacity(len);
|
||
let mut first = true;
|
||
|
||
for s in self.iter() {
|
||
if first {
|
||
first = false;
|
||
} else {
|
||
result.push_str(sep);
|
||
}
|
||
result.push_str(s.as_slice());
|
||
}
|
||
result
|
||
}
|
||
}
|
||
|
||
impl<'a, S: Str> StrVector for Vec<S> {
|
||
#[inline]
|
||
fn concat(&self) -> String {
|
||
self.as_slice().concat()
|
||
}
|
||
|
||
#[inline]
|
||
fn connect(&self, sep: &str) -> String {
|
||
self.as_slice().connect(sep)
|
||
}
|
||
}
|
||
|
||
/*
|
||
Section: Iterators
|
||
*/
|
||
|
||
// Helper functions used for Unicode normalization
|
||
fn canonical_sort(comb: &mut [(char, u8)]) {
|
||
let len = comb.len();
|
||
for i in range(0, len) {
|
||
let mut swapped = false;
|
||
for j in range(1, len-i) {
|
||
let class_a = *comb[j-1].ref1();
|
||
let class_b = *comb[j].ref1();
|
||
if class_a != 0 && class_b != 0 && class_a > class_b {
|
||
comb.swap(j-1, j);
|
||
swapped = true;
|
||
}
|
||
}
|
||
if !swapped { break; }
|
||
}
|
||
}
|
||
|
||
#[deriving(Clone)]
|
||
enum DecompositionType {
|
||
Canonical,
|
||
Compatible
|
||
}
|
||
|
||
/// External iterator for a string's decomposition's characters.
|
||
/// Use with the `std::iter` module.
|
||
#[deriving(Clone)]
|
||
pub struct Decompositions<'a> {
|
||
kind: DecompositionType,
|
||
iter: Chars<'a>,
|
||
buffer: Vec<(char, u8)>,
|
||
sorted: bool
|
||
}
|
||
|
||
impl<'a> Iterator<char> for Decompositions<'a> {
|
||
#[inline]
|
||
fn next(&mut self) -> Option<char> {
|
||
match self.buffer.as_slice().head() {
|
||
Some(&(c, 0)) => {
|
||
self.sorted = false;
|
||
self.buffer.shift();
|
||
return Some(c);
|
||
}
|
||
Some(&(c, _)) if self.sorted => {
|
||
self.buffer.shift();
|
||
return Some(c);
|
||
}
|
||
_ => self.sorted = false
|
||
}
|
||
|
||
let decomposer = match self.kind {
|
||
Canonical => unicode::char::decompose_canonical,
|
||
Compatible => unicode::char::decompose_compatible
|
||
};
|
||
|
||
if !self.sorted {
|
||
for ch in self.iter {
|
||
let buffer = &mut self.buffer;
|
||
let sorted = &mut self.sorted;
|
||
decomposer(ch, |d| {
|
||
let class = unicode::char::canonical_combining_class(d);
|
||
if class == 0 && !*sorted {
|
||
canonical_sort(buffer.as_mut_slice());
|
||
*sorted = true;
|
||
}
|
||
buffer.push((d, class));
|
||
});
|
||
if *sorted { break }
|
||
}
|
||
}
|
||
|
||
if !self.sorted {
|
||
canonical_sort(self.buffer.as_mut_slice());
|
||
self.sorted = true;
|
||
}
|
||
|
||
match self.buffer.shift() {
|
||
Some((c, 0)) => {
|
||
self.sorted = false;
|
||
Some(c)
|
||
}
|
||
Some((c, _)) => Some(c),
|
||
None => None
|
||
}
|
||
}
|
||
|
||
fn size_hint(&self) -> (uint, Option<uint>) {
|
||
let (lower, _) = self.iter.size_hint();
|
||
(lower, None)
|
||
}
|
||
}
|
||
|
||
/// Replace all occurrences of one string with another
|
||
///
|
||
/// # Arguments
|
||
///
|
||
/// * s - The string containing substrings to replace
|
||
/// * from - The string to replace
|
||
/// * to - The replacement string
|
||
///
|
||
/// # Return value
|
||
///
|
||
/// The original string with all occurrences of `from` replaced with `to`
|
||
///
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// use std::str;
|
||
/// let string = "orange";
|
||
/// let new_string = str::replace(string, "or", "str");
|
||
/// assert_eq!(new_string.as_slice(), "strange");
|
||
/// ```
|
||
pub fn replace(s: &str, from: &str, to: &str) -> String {
|
||
let mut result = String::new();
|
||
let mut last_end = 0;
|
||
for (start, end) in s.match_indices(from) {
|
||
result.push_str(unsafe{raw::slice_bytes(s, last_end, start)});
|
||
result.push_str(to);
|
||
last_end = end;
|
||
}
|
||
result.push_str(unsafe{raw::slice_bytes(s, last_end, s.len())});
|
||
result
|
||
}
|
||
|
||
/*
|
||
Section: Misc
|
||
*/
|
||
|
||
/// Deprecated. Use `String::from_utf16`.
|
||
#[deprecated = "Replaced by String::from_utf16"]
|
||
pub fn from_utf16(v: &[u16]) -> Option<String> {
|
||
String::from_utf16(v)
|
||
}
|
||
|
||
/// Deprecated. Use `String::from_utf16_lossy`.
|
||
#[deprecated = "Replaced by String::from_utf16_lossy"]
|
||
pub fn from_utf16_lossy(v: &[u16]) -> String {
|
||
String::from_utf16_lossy(v)
|
||
}
|
||
|
||
// Return the initial codepoint accumulator for the first byte.
|
||
// The first byte is special, only want bottom 5 bits for width 2, 4 bits
|
||
// for width 3, and 3 bits for width 4
|
||
macro_rules! utf8_first_byte(
|
||
($byte:expr, $width:expr) => (($byte & (0x7F >> $width)) as u32)
|
||
)
|
||
|
||
// return the value of $ch updated with continuation byte $byte
|
||
macro_rules! utf8_acc_cont_byte(
|
||
($ch:expr, $byte:expr) => (($ch << 6) | ($byte & 63u8) as u32)
|
||
)
|
||
|
||
/// Deprecated. Use `String::from_utf8_lossy`.
|
||
#[deprecated = "Replaced by String::from_utf8_lossy"]
|
||
pub fn from_utf8_lossy<'a>(v: &'a [u8]) -> MaybeOwned<'a> {
|
||
String::from_utf8_lossy(v)
|
||
}
|
||
|
||
/*
|
||
Section: MaybeOwned
|
||
*/
|
||
|
||
/// A `MaybeOwned` is a string that can hold either a `String` or a `&str`.
|
||
/// This can be useful as an optimization when an allocation is sometimes
|
||
/// needed but not always.
|
||
pub enum MaybeOwned<'a> {
|
||
/// A borrowed string
|
||
Slice(&'a str),
|
||
/// An owned string
|
||
Owned(String)
|
||
}
|
||
|
||
/// `SendStr` is a specialization of `MaybeOwned` to be sendable
|
||
pub type SendStr = MaybeOwned<'static>;
|
||
|
||
impl<'a> MaybeOwned<'a> {
|
||
/// Returns `true` if this `MaybeOwned` wraps an owned string
|
||
///
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let string = String::from_str("orange");
|
||
/// let maybe_owned_string = string.into_maybe_owned();
|
||
/// assert_eq!(true, maybe_owned_string.is_owned());
|
||
/// ```
|
||
#[inline]
|
||
pub fn is_owned(&self) -> bool {
|
||
match *self {
|
||
Slice(_) => false,
|
||
Owned(_) => true
|
||
}
|
||
}
|
||
|
||
/// Returns `true` if this `MaybeOwned` wraps a borrowed string
|
||
///
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let string = "orange";
|
||
/// let maybe_owned_string = string.as_slice().into_maybe_owned();
|
||
/// assert_eq!(true, maybe_owned_string.is_slice());
|
||
/// ```
|
||
#[inline]
|
||
pub fn is_slice(&self) -> bool {
|
||
match *self {
|
||
Slice(_) => true,
|
||
Owned(_) => false
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Trait for moving into a `MaybeOwned`
|
||
pub trait IntoMaybeOwned<'a> {
|
||
/// Moves self into a `MaybeOwned`
|
||
fn into_maybe_owned(self) -> MaybeOwned<'a>;
|
||
}
|
||
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let owned_string = String::from_str("orange");
|
||
/// let maybe_owned_string = owned_string.into_maybe_owned();
|
||
/// assert_eq!(true, maybe_owned_string.is_owned());
|
||
/// ```
|
||
impl<'a> IntoMaybeOwned<'a> for String {
|
||
#[inline]
|
||
fn into_maybe_owned(self) -> MaybeOwned<'a> {
|
||
Owned(self)
|
||
}
|
||
}
|
||
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let string = "orange";
|
||
/// let maybe_owned_str = string.as_slice().into_maybe_owned();
|
||
/// assert_eq!(false, maybe_owned_str.is_owned());
|
||
/// ```
|
||
impl<'a> IntoMaybeOwned<'a> for &'a str {
|
||
#[inline]
|
||
fn into_maybe_owned(self) -> MaybeOwned<'a> { Slice(self) }
|
||
}
|
||
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let str = "orange";
|
||
/// let maybe_owned_str = str.as_slice().into_maybe_owned();
|
||
/// let maybe_maybe_owned_str = maybe_owned_str.into_maybe_owned();
|
||
/// assert_eq!(false, maybe_maybe_owned_str.is_owned());
|
||
/// ```
|
||
impl<'a> IntoMaybeOwned<'a> for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn into_maybe_owned(self) -> MaybeOwned<'a> { self }
|
||
}
|
||
|
||
impl<'a> PartialEq for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn eq(&self, other: &MaybeOwned) -> bool {
|
||
self.as_slice() == other.as_slice()
|
||
}
|
||
}
|
||
|
||
impl<'a> Eq for MaybeOwned<'a> {}
|
||
|
||
impl<'a> PartialOrd for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn partial_cmp(&self, other: &MaybeOwned) -> Option<Ordering> {
|
||
Some(self.cmp(other))
|
||
}
|
||
}
|
||
|
||
impl<'a> Ord for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn cmp(&self, other: &MaybeOwned) -> Ordering {
|
||
self.as_slice().cmp(&other.as_slice())
|
||
}
|
||
}
|
||
|
||
impl<'a, S: Str> Equiv<S> for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn equiv(&self, other: &S) -> bool {
|
||
self.as_slice() == other.as_slice()
|
||
}
|
||
}
|
||
|
||
impl<'a> Str for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn as_slice<'b>(&'b self) -> &'b str {
|
||
match *self {
|
||
Slice(s) => s,
|
||
Owned(ref s) => s.as_slice()
|
||
}
|
||
}
|
||
}
|
||
|
||
impl<'a> StrAllocating for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn into_string(self) -> String {
|
||
match self {
|
||
Slice(s) => String::from_str(s),
|
||
Owned(s) => s
|
||
}
|
||
}
|
||
}
|
||
|
||
impl<'a> Collection for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn len(&self) -> uint { self.as_slice().len() }
|
||
}
|
||
|
||
impl<'a> Clone for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn clone(&self) -> MaybeOwned<'a> {
|
||
match *self {
|
||
Slice(s) => Slice(s),
|
||
Owned(ref s) => Owned(String::from_str(s.as_slice()))
|
||
}
|
||
}
|
||
}
|
||
|
||
impl<'a> Default for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn default() -> MaybeOwned<'a> { Slice("") }
|
||
}
|
||
|
||
impl<'a, H: hash::Writer> hash::Hash<H> for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn hash(&self, hasher: &mut H) {
|
||
self.as_slice().hash(hasher)
|
||
}
|
||
}
|
||
|
||
impl<'a> fmt::Show for MaybeOwned<'a> {
|
||
#[inline]
|
||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||
match *self {
|
||
Slice(ref s) => s.fmt(f),
|
||
Owned(ref s) => s.fmt(f)
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Unsafe operations
|
||
pub mod raw {
|
||
use core::mem;
|
||
use core::raw::Slice;
|
||
use core::ptr::RawPtr;
|
||
use string;
|
||
use string::String;
|
||
use vec::Vec;
|
||
|
||
use MutableSeq;
|
||
|
||
pub use core::str::raw::{from_utf8, c_str_to_static_slice, slice_bytes};
|
||
pub use core::str::raw::{slice_unchecked};
|
||
|
||
/// Deprecated. Replaced by `string::raw::from_buf_len`
|
||
#[deprecated = "Use string::raw::from_buf_len"]
|
||
pub unsafe fn from_buf_len(buf: *const u8, len: uint) -> String {
|
||
string::raw::from_buf_len(buf, len)
|
||
}
|
||
|
||
/// Deprecated. Use `CString::as_str().unwrap().to_string()`
|
||
#[deprecated = "Use CString::as_str().unwrap().to_string()"]
|
||
pub unsafe fn from_c_str(c_string: *const i8) -> String {
|
||
let mut buf = String::new();
|
||
let mut len = 0;
|
||
while *c_string.offset(len) != 0 {
|
||
len += 1;
|
||
}
|
||
buf.push_bytes(mem::transmute(Slice {
|
||
data: c_string,
|
||
len: len as uint,
|
||
}));
|
||
buf
|
||
}
|
||
|
||
/// Deprecated. Replaced by `string::raw::from_utf8`
|
||
#[deprecated = "Use string::raw::from_utf8"]
|
||
pub unsafe fn from_utf8_owned(v: Vec<u8>) -> String {
|
||
string::raw::from_utf8(v)
|
||
}
|
||
|
||
/// Deprecated. Use `string::raw::from_utf8`
|
||
#[deprecated = "Use string::raw::from_utf8"]
|
||
pub unsafe fn from_byte(u: u8) -> String {
|
||
string::raw::from_utf8(vec![u])
|
||
}
|
||
}
|
||
|
||
/*
|
||
Section: Trait implementations
|
||
*/
|
||
|
||
/// Any string that can be represented as a slice
|
||
pub trait StrAllocating: Str {
|
||
/// Convert `self` into a `String`, not making a copy if possible.
|
||
fn into_string(self) -> String;
|
||
|
||
#[allow(missing_doc)]
|
||
#[deprecated = "replaced by .into_string()"]
|
||
fn into_owned(self) -> String {
|
||
self.into_string()
|
||
}
|
||
|
||
/// Escape each char in `s` with `char::escape_default`.
|
||
fn escape_default(&self) -> String {
|
||
let me = self.as_slice();
|
||
let mut out = String::with_capacity(me.len());
|
||
for c in me.chars() {
|
||
c.escape_default(|c| out.push_char(c));
|
||
}
|
||
out
|
||
}
|
||
|
||
/// Escape each char in `s` with `char::escape_unicode`.
|
||
fn escape_unicode(&self) -> String {
|
||
let me = self.as_slice();
|
||
let mut out = String::with_capacity(me.len());
|
||
for c in me.chars() {
|
||
c.escape_unicode(|c| out.push_char(c));
|
||
}
|
||
out
|
||
}
|
||
|
||
/// Replace all occurrences of one string with another.
|
||
///
|
||
/// # Arguments
|
||
///
|
||
/// * `from` - The string to replace
|
||
/// * `to` - The replacement string
|
||
///
|
||
/// # Return value
|
||
///
|
||
/// The original string with all occurrences of `from` replaced with `to`.
|
||
///
|
||
/// # Example
|
||
///
|
||
/// ```rust
|
||
/// let s = "Do you know the muffin man,
|
||
/// The muffin man, the muffin man, ...".to_string();
|
||
///
|
||
/// assert_eq!(s.replace("muffin man", "little lamb"),
|
||
/// "Do you know the little lamb,
|
||
/// The little lamb, the little lamb, ...".to_string());
|
||
///
|
||
/// // not found, so no change.
|
||
/// assert_eq!(s.replace("cookie monster", "little lamb"), s);
|
||
/// ```
|
||
fn replace(&self, from: &str, to: &str) -> String {
|
||
let me = self.as_slice();
|
||
let mut result = String::new();
|
||
let mut last_end = 0;
|
||
for (start, end) in me.match_indices(from) {
|
||
result.push_str(unsafe{raw::slice_bytes(me, last_end, start)});
|
||
result.push_str(to);
|
||
last_end = end;
|
||
}
|
||
result.push_str(unsafe{raw::slice_bytes(me, last_end, me.len())});
|
||
result
|
||
}
|
||
|
||
#[allow(missing_doc)]
|
||
#[deprecated = "obsolete, use `to_string`"]
|
||
#[inline]
|
||
fn to_owned(&self) -> String {
|
||
unsafe {
|
||
mem::transmute(Vec::from_slice(self.as_slice().as_bytes()))
|
||
}
|
||
}
|
||
|
||
/// Converts to a vector of `u16` encoded as UTF-16.
|
||
#[deprecated = "use `utf16_units` instead"]
|
||
fn to_utf16(&self) -> Vec<u16> {
|
||
self.as_slice().utf16_units().collect::<Vec<u16>>()
|
||
}
|
||
|
||
/// Given a string, make a new string with repeated copies of it.
|
||
fn repeat(&self, nn: uint) -> String {
|
||
let me = self.as_slice();
|
||
let mut ret = String::with_capacity(nn * me.len());
|
||
for _ in range(0, nn) {
|
||
ret.push_str(me);
|
||
}
|
||
ret
|
||
}
|
||
|
||
/// Levenshtein Distance between two strings.
|
||
fn lev_distance(&self, t: &str) -> uint {
|
||
let me = self.as_slice();
|
||
let slen = me.len();
|
||
let tlen = t.len();
|
||
|
||
if slen == 0 { return tlen; }
|
||
if tlen == 0 { return slen; }
|
||
|
||
let mut dcol = Vec::from_fn(tlen + 1, |x| x);
|
||
|
||
for (i, sc) in me.chars().enumerate() {
|
||
|
||
let mut current = i;
|
||
*dcol.get_mut(0) = current + 1;
|
||
|
||
for (j, tc) in t.chars().enumerate() {
|
||
|
||
let next = *dcol.get(j + 1);
|
||
|
||
if sc == tc {
|
||
*dcol.get_mut(j + 1) = current;
|
||
} else {
|
||
*dcol.get_mut(j + 1) = cmp::min(current, next);
|
||
*dcol.get_mut(j + 1) = cmp::min(*dcol.get(j + 1),
|
||
*dcol.get(j)) + 1;
|
||
}
|
||
|
||
current = next;
|
||
}
|
||
}
|
||
|
||
return *dcol.get(tlen);
|
||
}
|
||
|
||
/// An Iterator over the string in Unicode Normalization Form D
|
||
/// (canonical decomposition).
|
||
#[inline]
|
||
fn nfd_chars<'a>(&'a self) -> Decompositions<'a> {
|
||
Decompositions {
|
||
iter: self.as_slice().chars(),
|
||
buffer: Vec::new(),
|
||
sorted: false,
|
||
kind: Canonical
|
||
}
|
||
}
|
||
|
||
/// An Iterator over the string in Unicode Normalization Form KD
|
||
/// (compatibility decomposition).
|
||
#[inline]
|
||
fn nfkd_chars<'a>(&'a self) -> Decompositions<'a> {
|
||
Decompositions {
|
||
iter: self.as_slice().chars(),
|
||
buffer: Vec::new(),
|
||
sorted: false,
|
||
kind: Compatible
|
||
}
|
||
}
|
||
}
|
||
|
||
impl<'a> StrAllocating for &'a str {
|
||
#[inline]
|
||
fn into_string(self) -> String {
|
||
String::from_str(self)
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod tests {
|
||
use std::iter::AdditiveIterator;
|
||
use std::iter::range;
|
||
use std::default::Default;
|
||
use std::char::Char;
|
||
use std::clone::Clone;
|
||
use std::cmp::{Equal, Greater, Less, Ord, PartialOrd, Equiv};
|
||
use std::option::{Some, None};
|
||
use std::ptr::RawPtr;
|
||
use std::iter::{Iterator, DoubleEndedIterator};
|
||
use {Collection, MutableSeq};
|
||
|
||
use super::*;
|
||
use std::slice::{Vector, ImmutableVector};
|
||
use string::String;
|
||
use vec::Vec;
|
||
|
||
use unicode::char::UnicodeChar;
|
||
|
||
#[test]
|
||
fn test_eq_slice() {
|
||
assert!((eq_slice("foobar".slice(0, 3), "foo")));
|
||
assert!((eq_slice("barfoo".slice(3, 6), "foo")));
|
||
assert!((!eq_slice("foo1", "foo2")));
|
||
}
|
||
|
||
#[test]
|
||
fn test_le() {
|
||
assert!("" <= "");
|
||
assert!("" <= "foo");
|
||
assert!("foo" <= "foo");
|
||
assert!("foo" != "bar");
|
||
}
|
||
|
||
#[test]
|
||
fn test_len() {
|
||
assert_eq!("".len(), 0u);
|
||
assert_eq!("hello world".len(), 11u);
|
||
assert_eq!("\x63".len(), 1u);
|
||
assert_eq!("\xa2".len(), 2u);
|
||
assert_eq!("\u03c0".len(), 2u);
|
||
assert_eq!("\u2620".len(), 3u);
|
||
assert_eq!("\U0001d11e".len(), 4u);
|
||
|
||
assert_eq!("".char_len(), 0u);
|
||
assert_eq!("hello world".char_len(), 11u);
|
||
assert_eq!("\x63".char_len(), 1u);
|
||
assert_eq!("\xa2".char_len(), 1u);
|
||
assert_eq!("\u03c0".char_len(), 1u);
|
||
assert_eq!("\u2620".char_len(), 1u);
|
||
assert_eq!("\U0001d11e".char_len(), 1u);
|
||
assert_eq!("ประเทศไทย中华Việt Nam".char_len(), 19u);
|
||
|
||
assert_eq!("ｈｅｌｌｏ".width(false), 10u);
|
||
assert_eq!("ｈｅｌｌｏ".width(true), 10u);
|
||
assert_eq!("\0\0\0\0\0".width(false), 0u);
|
||
assert_eq!("\0\0\0\0\0".width(true), 0u);
|
||
assert_eq!("".width(false), 0u);
|
||
assert_eq!("".width(true), 0u);
|
||
assert_eq!("\u2081\u2082\u2083\u2084".width(false), 4u);
|
||
assert_eq!("\u2081\u2082\u2083\u2084".width(true), 8u);
|
||
}
|
||
|
||
#[test]
|
||
fn test_find() {
|
||
assert_eq!("hello".find('l'), Some(2u));
|
||
assert_eq!("hello".find(|c:char| c == 'o'), Some(4u));
|
||
assert!("hello".find('x').is_none());
|
||
assert!("hello".find(|c:char| c == 'x').is_none());
|
||
assert_eq!("ประเทศไทย中华Việt Nam".find('华'), Some(30u));
|
||
assert_eq!("ประเทศไทย中华Việt Nam".find(|c: char| c == '华'), Some(30u));
|
||
}
|
||
|
||
#[test]
|
||
fn test_rfind() {
|
||
assert_eq!("hello".rfind('l'), Some(3u));
|
||
assert_eq!("hello".rfind(|c:char| c == 'o'), Some(4u));
|
||
assert!("hello".rfind('x').is_none());
|
||
assert!("hello".rfind(|c:char| c == 'x').is_none());
|
||
assert_eq!("ประเทศไทย中华Việt Nam".rfind('华'), Some(30u));
|
||
assert_eq!("ประเทศไทย中华Việt Nam".rfind(|c: char| c == '华'), Some(30u));
|
||
}
|
||
|
||
#[test]
|
||
fn test_collect() {
|
||
let empty = String::from_str("");
|
||
let s: String = empty.as_slice().chars().collect();
|
||
assert_eq!(empty, s);
|
||
let data = String::from_str("ประเทศไทย中");
|
||
let s: String = data.as_slice().chars().collect();
|
||
assert_eq!(data, s);
|
||
}
|
||
|
||
#[test]
|
||
fn test_into_bytes() {
|
||
let data = String::from_str("asdf");
|
||
let buf = data.into_bytes();
|
||
assert_eq!(b"asdf", buf.as_slice());
|
||
}
|
||
|
||
#[test]
|
||
fn test_find_str() {
|
||
// byte positions
|
||
assert_eq!("".find_str(""), Some(0u));
|
||
assert!("banana".find_str("apple pie").is_none());
|
||
|
||
let data = "abcabc";
|
||
assert_eq!(data.slice(0u, 6u).find_str("ab"), Some(0u));
|
||
assert_eq!(data.slice(2u, 6u).find_str("ab"), Some(3u - 2u));
|
||
assert!(data.slice(2u, 4u).find_str("ab").is_none());
|
||
|
||
let string = "ประเทศไทย中华Việt Nam";
|
||
let mut data = String::from_str(string);
|
||
data.push_str(string);
|
||
assert!(data.as_slice().find_str("ไท华").is_none());
|
||
assert_eq!(data.as_slice().slice(0u, 43u).find_str(""), Some(0u));
|
||
assert_eq!(data.as_slice().slice(6u, 43u).find_str(""), Some(6u - 6u));
|
||
|
||
assert_eq!(data.as_slice().slice(0u, 43u).find_str("ประ"), Some( 0u));
|
||
assert_eq!(data.as_slice().slice(0u, 43u).find_str("ทศไ"), Some(12u));
|
||
assert_eq!(data.as_slice().slice(0u, 43u).find_str("ย中"), Some(24u));
|
||
assert_eq!(data.as_slice().slice(0u, 43u).find_str("iệt"), Some(34u));
|
||
assert_eq!(data.as_slice().slice(0u, 43u).find_str("Nam"), Some(40u));
|
||
|
||
assert_eq!(data.as_slice().slice(43u, 86u).find_str("ประ"), Some(43u - 43u));
|
||
assert_eq!(data.as_slice().slice(43u, 86u).find_str("ทศไ"), Some(55u - 43u));
|
||
assert_eq!(data.as_slice().slice(43u, 86u).find_str("ย中"), Some(67u - 43u));
|
||
assert_eq!(data.as_slice().slice(43u, 86u).find_str("iệt"), Some(77u - 43u));
|
||
assert_eq!(data.as_slice().slice(43u, 86u).find_str("Nam"), Some(83u - 43u));
|
||
}
|
||
|
||
#[test]
|
||
fn test_slice_chars() {
|
||
fn t(a: &str, b: &str, start: uint) {
|
||
assert_eq!(a.slice_chars(start, start + b.char_len()), b);
|
||
}
|
||
t("", "", 0);
|
||
t("hello", "llo", 2);
|
||
t("hello", "el", 1);
|
||
t("αβλ", "β", 1);
|
||
t("αβλ", "", 3);
|
||
assert_eq!("ะเทศไท", "ประเทศไทย中华Việt Nam".slice_chars(2, 8));
|
||
}
|
||
|
||
#[test]
|
||
fn test_concat() {
|
||
fn t(v: &[String], s: &str) {
|
||
assert_eq!(v.concat().as_slice(), s);
|
||
}
|
||
t([String::from_str("you"), String::from_str("know"),
|
||
String::from_str("I'm"),
|
||
String::from_str("no"), String::from_str("good")],
|
||
"youknowI'mnogood");
|
||
let v: &[String] = [];
|
||
t(v, "");
|
||
t([String::from_str("hi")], "hi");
|
||
}
|
||
|
||
#[test]
|
||
fn test_connect() {
|
||
fn t(v: &[String], sep: &str, s: &str) {
|
||
assert_eq!(v.connect(sep).as_slice(), s);
|
||
}
|
||
t([String::from_str("you"), String::from_str("know"),
|
||
String::from_str("I'm"),
|
||
String::from_str("no"), String::from_str("good")],
|
||
" ", "you know I'm no good");
|
||
let v: &[String] = [];
|
||
t(v, " ", "");
|
||
t([String::from_str("hi")], " ", "hi");
|
||
}
|
||
|
||
#[test]
|
||
fn test_concat_slices() {
|
||
fn t(v: &[&str], s: &str) {
|
||
assert_eq!(v.concat().as_slice(), s);
|
||
}
|
||
t(["you", "know", "I'm", "no", "good"], "youknowI'mnogood");
|
||
let v: &[&str] = [];
|
||
t(v, "");
|
||
t(["hi"], "hi");
|
||
}
|
||
|
||
#[test]
|
||
fn test_connect_slices() {
|
||
fn t(v: &[&str], sep: &str, s: &str) {
|
||
assert_eq!(v.connect(sep).as_slice(), s);
|
||
}
|
||
t(["you", "know", "I'm", "no", "good"],
|
||
" ", "you know I'm no good");
|
||
t([], " ", "");
|
||
t(["hi"], " ", "hi");
|
||
}
|
||
|
||
#[test]
|
||
fn test_repeat() {
|
||
assert_eq!("x".repeat(4), String::from_str("xxxx"));
|
||
assert_eq!("hi".repeat(4), String::from_str("hihihihi"));
|
||
assert_eq!("ไท华".repeat(3), String::from_str("ไท华ไท华ไท华"));
|
||
assert_eq!("".repeat(4), String::from_str(""));
|
||
assert_eq!("hi".repeat(0), String::from_str(""));
|
||
}
|
||
|
||
#[test]
|
||
fn test_unsafe_slice() {
|
||
assert_eq!("ab", unsafe {raw::slice_bytes("abc", 0, 2)});
|
||
assert_eq!("bc", unsafe {raw::slice_bytes("abc", 1, 3)});
|
||
assert_eq!("", unsafe {raw::slice_bytes("abc", 1, 1)});
|
||
fn a_million_letter_a() -> String {
|
||
let mut i = 0u;
|
||
let mut rs = String::new();
|
||
while i < 100000 {
|
||
rs.push_str("aaaaaaaaaa");
|
||
i += 1;
|
||
}
|
||
rs
|
||
}
|
||
fn half_a_million_letter_a() -> String {
|
||
let mut i = 0u;
|
||
let mut rs = String::new();
|
||
while i < 100000 {
|
||
rs.push_str("aaaaa");
|
||
i += 1;
|
||
}
|
||
rs
|
||
}
|
||
let letters = a_million_letter_a();
|
||
assert!(half_a_million_letter_a() ==
|
||
unsafe {String::from_str(raw::slice_bytes(letters.as_slice(),
|
||
0u,
|
||
500000))});
|
||
}
|
||
|
||
#[test]
|
||
fn test_starts_with() {
|
||
assert!(("".starts_with("")));
|
||
assert!(("abc".starts_with("")));
|
||
assert!(("abc".starts_with("a")));
|
||
assert!((!"a".starts_with("abc")));
|
||
assert!((!"".starts_with("abc")));
|
||
assert!((!"ödd".starts_with("-")));
|
||
assert!(("ödd".starts_with("öd")));
|
||
}
|
||
|
||
#[test]
|
||
fn test_ends_with() {
|
||
assert!(("".ends_with("")));
|
||
assert!(("abc".ends_with("")));
|
||
assert!(("abc".ends_with("c")));
|
||
assert!((!"a".ends_with("abc")));
|
||
assert!((!"".ends_with("abc")));
|
||
assert!((!"ddö".ends_with("-")));
|
||
assert!(("ddö".ends_with("dö")));
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_empty() {
|
||
assert!("".is_empty());
|
||
assert!(!"a".is_empty());
|
||
}
|
||
|
||
#[test]
|
||
fn test_replace() {
|
||
let a = "a";
|
||
assert_eq!("".replace(a, "b"), String::from_str(""));
|
||
assert_eq!("a".replace(a, "b"), String::from_str("b"));
|
||
assert_eq!("ab".replace(a, "b"), String::from_str("bb"));
|
||
let test = "test";
|
||
assert!(" test test ".replace(test, "toast") ==
|
||
String::from_str(" toast toast "));
|
||
assert_eq!(" test test ".replace(test, ""), String::from_str(" "));
|
||
}
|
||
|
||
#[test]
|
||
fn test_replace_2a() {
|
||
let data = "ประเทศไทย中华";
|
||
let repl = "دولة الكويت";
|
||
|
||
let a = "ประเ";
|
||
let a2 = "دولة الكويتทศไทย中华";
|
||
assert_eq!(data.replace(a, repl).as_slice(), a2);
|
||
}
|
||
|
||
#[test]
|
||
fn test_replace_2b() {
|
||
let data = "ประเทศไทย中华";
|
||
let repl = "دولة الكويت";
|
||
|
||
let b = "ะเ";
|
||
let b2 = "ปรدولة الكويتทศไทย中华";
|
||
assert_eq!(data.replace(b, repl).as_slice(), b2);
|
||
}
|
||
|
||
#[test]
|
||
fn test_replace_2c() {
|
||
let data = "ประเทศไทย中华";
|
||
let repl = "دولة الكويت";
|
||
|
||
let c = "中华";
|
||
let c2 = "ประเทศไทยدولة الكويت";
|
||
assert_eq!(data.replace(c, repl).as_slice(), c2);
|
||
}
|
||
|
||
#[test]
|
||
fn test_replace_2d() {
|
||
let data = "ประเทศไทย中华";
|
||
let repl = "دولة الكويت";
|
||
|
||
let d = "ไท华";
|
||
assert_eq!(data.replace(d, repl).as_slice(), data);
|
||
}
|
||
|
||
#[test]
|
||
fn test_slice() {
|
||
assert_eq!("ab", "abc".slice(0, 2));
|
||
assert_eq!("bc", "abc".slice(1, 3));
|
||
assert_eq!("", "abc".slice(1, 1));
|
||
assert_eq!("\u65e5", "\u65e5\u672c".slice(0, 3));
|
||
|
||
let data = "ประเทศไทย中华";
|
||
assert_eq!("ป", data.slice(0, 3));
|
||
assert_eq!("ร", data.slice(3, 6));
|
||
assert_eq!("", data.slice(3, 3));
|
||
assert_eq!("华", data.slice(30, 33));
|
||
|
||
fn a_million_letter_x() -> String {
|
||
let mut i = 0u;
|
||
let mut rs = String::new();
|
||
while i < 100000 {
|
||
rs.push_str("华华华华华华华华华华");
|
||
i += 1;
|
||
}
|
||
rs
|
||
}
|
||
fn half_a_million_letter_x() -> String {
|
||
let mut i = 0u;
|
||
let mut rs = String::new();
|
||
while i < 100000 {
|
||
rs.push_str("华华华华华");
|
||
i += 1;
|
||
}
|
||
rs
|
||
}
|
||
let letters = a_million_letter_x();
|
||
assert!(half_a_million_letter_x() ==
|
||
String::from_str(letters.as_slice().slice(0u, 3u * 500000u)));
|
||
}
|
||
|
||
#[test]
|
||
fn test_slice_2() {
|
||
let ss = "中华Việt Nam";
|
||
|
||
assert_eq!("华", ss.slice(3u, 6u));
|
||
assert_eq!("Việt Nam", ss.slice(6u, 16u));
|
||
|
||
assert_eq!("ab", "abc".slice(0u, 2u));
|
||
assert_eq!("bc", "abc".slice(1u, 3u));
|
||
assert_eq!("", "abc".slice(1u, 1u));
|
||
|
||
assert_eq!("中", ss.slice(0u, 3u));
|
||
assert_eq!("华V", ss.slice(3u, 7u));
|
||
assert_eq!("", ss.slice(3u, 3u));
|
||
/*0: 中
|
||
3: 华
|
||
6: V
|
||
7: i
|
||
8: ệ
|
||
11: t
|
||
12:
|
||
13: N
|
||
14: a
|
||
15: m */
|
||
}
|
||
|
||
#[test]
|
||
#[should_fail]
|
||
fn test_slice_fail() {
|
||
"中华Việt Nam".slice(0u, 2u);
|
||
}
|
||
|
||
#[test]
|
||
fn test_slice_from() {
|
||
assert_eq!("abcd".slice_from(0), "abcd");
|
||
assert_eq!("abcd".slice_from(2), "cd");
|
||
assert_eq!("abcd".slice_from(4), "");
|
||
}
|
||
#[test]
|
||
fn test_slice_to() {
|
||
assert_eq!("abcd".slice_to(0), "");
|
||
assert_eq!("abcd".slice_to(2), "ab");
|
||
assert_eq!("abcd".slice_to(4), "abcd");
|
||
}
|
||
|
||
#[test]
|
||
fn test_trim_left_chars() {
|
||
let v: &[char] = &[];
|
||
assert_eq!(" *** foo *** ".trim_left_chars(v), " *** foo *** ");
|
||
assert_eq!(" *** foo *** ".trim_left_chars(&['*', ' ']), "foo *** ");
|
||
assert_eq!(" *** *** ".trim_left_chars(&['*', ' ']), "");
|
||
assert_eq!("foo *** ".trim_left_chars(&['*', ' ']), "foo *** ");
|
||
|
||
assert_eq!("11foo1bar11".trim_left_chars('1'), "foo1bar11");
|
||
assert_eq!("12foo1bar12".trim_left_chars(&['1', '2']), "foo1bar12");
|
||
assert_eq!("123foo1bar123".trim_left_chars(|c: char| c.is_digit()), "foo1bar123");
|
||
}
|
||
|
||
#[test]
|
||
fn test_trim_right_chars() {
|
||
let v: &[char] = &[];
|
||
assert_eq!(" *** foo *** ".trim_right_chars(v), " *** foo *** ");
|
||
assert_eq!(" *** foo *** ".trim_right_chars(&['*', ' ']), " *** foo");
|
||
assert_eq!(" *** *** ".trim_right_chars(&['*', ' ']), "");
|
||
assert_eq!(" *** foo".trim_right_chars(&['*', ' ']), " *** foo");
|
||
|
||
assert_eq!("11foo1bar11".trim_right_chars('1'), "11foo1bar");
|
||
assert_eq!("12foo1bar12".trim_right_chars(&['1', '2']), "12foo1bar");
|
||
assert_eq!("123foo1bar123".trim_right_chars(|c: char| c.is_digit()), "123foo1bar");
|
||
}
|
||
|
||
#[test]
|
||
fn test_trim_chars() {
|
||
let v: &[char] = &[];
|
||
assert_eq!(" *** foo *** ".trim_chars(v), " *** foo *** ");
|
||
assert_eq!(" *** foo *** ".trim_chars(&['*', ' ']), "foo");
|
||
assert_eq!(" *** *** ".trim_chars(&['*', ' ']), "");
|
||
assert_eq!("foo".trim_chars(&['*', ' ']), "foo");
|
||
|
||
assert_eq!("11foo1bar11".trim_chars('1'), "foo1bar");
|
||
assert_eq!("12foo1bar12".trim_chars(&['1', '2']), "foo1bar");
|
||
assert_eq!("123foo1bar123".trim_chars(|c: char| c.is_digit()), "foo1bar");
|
||
}
|
||
|
||
#[test]
|
||
fn test_trim_left() {
|
||
assert_eq!("".trim_left(), "");
|
||
assert_eq!("a".trim_left(), "a");
|
||
assert_eq!(" ".trim_left(), "");
|
||
assert_eq!(" blah".trim_left(), "blah");
|
||
assert_eq!(" \u3000 wut".trim_left(), "wut");
|
||
assert_eq!("hey ".trim_left(), "hey ");
|
||
}
|
||
|
||
#[test]
|
||
fn test_trim_right() {
|
||
assert_eq!("".trim_right(), "");
|
||
assert_eq!("a".trim_right(), "a");
|
||
assert_eq!(" ".trim_right(), "");
|
||
assert_eq!("blah ".trim_right(), "blah");
|
||
assert_eq!("wut \u3000 ".trim_right(), "wut");
|
||
assert_eq!(" hey".trim_right(), " hey");
|
||
}
|
||
|
||
#[test]
|
||
fn test_trim() {
|
||
assert_eq!("".trim(), "");
|
||
assert_eq!("a".trim(), "a");
|
||
assert_eq!(" ".trim(), "");
|
||
assert_eq!(" blah ".trim(), "blah");
|
||
assert_eq!("\nwut \u3000 ".trim(), "wut");
|
||
assert_eq!(" hey dude ".trim(), "hey dude");
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_whitespace() {
|
||
assert!("".is_whitespace());
|
||
assert!(" ".is_whitespace());
|
||
assert!("\u2009".is_whitespace()); // Thin space
|
||
assert!(" \n\t ".is_whitespace());
|
||
assert!(!" _ ".is_whitespace());
|
||
}
|
||
|
||
#[test]
|
||
fn test_slice_shift_char() {
|
||
let data = "ประเทศไทย中";
|
||
assert_eq!(data.slice_shift_char(), (Some('ป'), "ระเทศไทย中"));
|
||
}
|
||
|
||
#[test]
|
||
fn test_slice_shift_char_2() {
|
||
let empty = "";
|
||
assert_eq!(empty.slice_shift_char(), (None, ""));
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_utf8() {
|
||
// deny overlong encodings
|
||
assert!(!is_utf8([0xc0, 0x80]));
|
||
assert!(!is_utf8([0xc0, 0xae]));
|
||
assert!(!is_utf8([0xe0, 0x80, 0x80]));
|
||
assert!(!is_utf8([0xe0, 0x80, 0xaf]));
|
||
assert!(!is_utf8([0xe0, 0x81, 0x81]));
|
||
assert!(!is_utf8([0xf0, 0x82, 0x82, 0xac]));
|
||
assert!(!is_utf8([0xf4, 0x90, 0x80, 0x80]));
|
||
|
||
// deny surrogates
|
||
assert!(!is_utf8([0xED, 0xA0, 0x80]));
|
||
assert!(!is_utf8([0xED, 0xBF, 0xBF]));
|
||
|
||
assert!(is_utf8([0xC2, 0x80]));
|
||
assert!(is_utf8([0xDF, 0xBF]));
|
||
assert!(is_utf8([0xE0, 0xA0, 0x80]));
|
||
assert!(is_utf8([0xED, 0x9F, 0xBF]));
|
||
assert!(is_utf8([0xEE, 0x80, 0x80]));
|
||
assert!(is_utf8([0xEF, 0xBF, 0xBF]));
|
||
assert!(is_utf8([0xF0, 0x90, 0x80, 0x80]));
|
||
assert!(is_utf8([0xF4, 0x8F, 0xBF, 0xBF]));
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_utf16() {
|
||
macro_rules! pos ( ($($e:expr),*) => { { $(assert!(is_utf16($e));)* } });
|
||
|
||
// non-surrogates
|
||
pos!([0x0000],
|
||
[0x0001, 0x0002],
|
||
[0xD7FF],
|
||
[0xE000]);
|
||
|
||
// surrogate pairs (randomly generated with Python 3's
|
||
// .encode('utf-16be'))
|
||
pos!([0xdb54, 0xdf16, 0xd880, 0xdee0, 0xdb6a, 0xdd45],
|
||
[0xd91f, 0xdeb1, 0xdb31, 0xdd84, 0xd8e2, 0xde14],
|
||
[0xdb9f, 0xdc26, 0xdb6f, 0xde58, 0xd850, 0xdfae]);
|
||
|
||
// mixtures (also random)
|
||
pos!([0xd921, 0xdcc2, 0x002d, 0x004d, 0xdb32, 0xdf65],
|
||
[0xdb45, 0xdd2d, 0x006a, 0xdacd, 0xddfe, 0x0006],
|
||
[0x0067, 0xd8ff, 0xddb7, 0x000f, 0xd900, 0xdc80]);
|
||
|
||
// negative tests
|
||
macro_rules! neg ( ($($e:expr),*) => { { $(assert!(!is_utf16($e));)* } });
|
||
|
||
neg!(
|
||
// surrogate + regular unit
|
||
[0xdb45, 0x0000],
|
||
// surrogate + lead surrogate
|
||
[0xd900, 0xd900],
|
||
// unterminated surrogate
|
||
[0xd8ff],
|
||
// trail surrogate without a lead
|
||
[0xddb7]);
|
||
|
||
// random byte sequences that Python 3's .decode('utf-16be')
|
||
// failed on
|
||
neg!([0x5b3d, 0x0141, 0xde9e, 0x8fdc, 0xc6e7],
|
||
[0xdf5a, 0x82a5, 0x62b9, 0xb447, 0x92f3],
|
||
[0xda4e, 0x42bc, 0x4462, 0xee98, 0xc2ca],
|
||
[0xbe00, 0xb04a, 0x6ecb, 0xdd89, 0xe278],
|
||
[0x0465, 0xab56, 0xdbb6, 0xa893, 0x665e],
|
||
[0x6b7f, 0x0a19, 0x40f4, 0xa657, 0xdcc5],
|
||
[0x9b50, 0xda5e, 0x24ec, 0x03ad, 0x6dee],
|
||
[0x8d17, 0xcaa7, 0xf4ae, 0xdf6e, 0xbed7],
|
||
[0xdaee, 0x2584, 0x7d30, 0xa626, 0x121a],
|
||
[0xd956, 0x4b43, 0x7570, 0xccd6, 0x4f4a],
|
||
[0x9dcf, 0x1b49, 0x4ba5, 0xfce9, 0xdffe],
|
||
[0x6572, 0xce53, 0xb05a, 0xf6af, 0xdacf],
|
||
[0x1b90, 0x728c, 0x9906, 0xdb68, 0xf46e],
|
||
[0x1606, 0xbeca, 0xbe76, 0x860f, 0xdfa5],
|
||
[0x8b4f, 0xde7a, 0xd220, 0x9fac, 0x2b6f],
|
||
[0xb8fe, 0xebbe, 0xda32, 0x1a5f, 0x8b8b],
|
||
[0x934b, 0x8956, 0xc434, 0x1881, 0xddf7],
|
||
[0x5a95, 0x13fc, 0xf116, 0xd89b, 0x93f9],
|
||
[0xd640, 0x71f1, 0xdd7d, 0x77eb, 0x1cd8],
|
||
[0x348b, 0xaef0, 0xdb2c, 0xebf1, 0x1282],
|
||
[0x50d7, 0xd824, 0x5010, 0xb369, 0x22ea]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_as_bytes() {
|
||
// no null
|
||
let v = [
|
||
224, 184, 168, 224, 185, 132, 224, 184, 151, 224, 184, 162, 228,
|
||
184, 173, 229, 141, 142, 86, 105, 225, 187, 135, 116, 32, 78, 97,
|
||
109
|
||
];
|
||
assert_eq!("".as_bytes(), &[]);
|
||
assert_eq!("abc".as_bytes(), &['a' as u8, 'b' as u8, 'c' as u8]);
|
||
assert_eq!("ศไทย中华Việt Nam".as_bytes(), v.as_slice());
|
||
}
|
||
|
||
#[test]
|
||
#[should_fail]
|
||
fn test_as_bytes_fail() {
|
||
// Don't double free. (I'm not sure if this exercises the
|
||
// original problem code path anymore.)
|
||
let s = String::from_str("");
|
||
let _bytes = s.as_bytes();
|
||
fail!();
|
||
}
|
||
|
||
#[test]
|
||
fn test_as_ptr() {
|
||
let buf = "hello".as_ptr();
|
||
unsafe {
|
||
assert_eq!(*buf.offset(0), 'h' as u8);
|
||
assert_eq!(*buf.offset(1), 'e' as u8);
|
||
assert_eq!(*buf.offset(2), 'l' as u8);
|
||
assert_eq!(*buf.offset(3), 'l' as u8);
|
||
assert_eq!(*buf.offset(4), 'o' as u8);
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_subslice_offset() {
|
||
let a = "kernelsprite";
|
||
let b = a.slice(7, a.len());
|
||
let c = a.slice(0, a.len() - 6);
|
||
assert_eq!(a.subslice_offset(b), 7);
|
||
assert_eq!(a.subslice_offset(c), 0);
|
||
|
||
let string = "a\nb\nc";
|
||
let lines: Vec<&str> = string.lines().collect();
|
||
let lines = lines.as_slice();
|
||
assert_eq!(string.subslice_offset(lines[0]), 0);
|
||
assert_eq!(string.subslice_offset(lines[1]), 2);
|
||
assert_eq!(string.subslice_offset(lines[2]), 4);
|
||
}
|
||
|
||
#[test]
|
||
#[should_fail]
|
||
fn test_subslice_offset_2() {
|
||
let a = "alchemiter";
|
||
let b = "cruxtruder";
|
||
a.subslice_offset(b);
|
||
}
|
||
|
||
#[test]
|
||
fn vec_str_conversions() {
|
||
let s1: String = String::from_str("All mimsy were the borogoves");
|
||
|
||
let v: Vec<u8> = Vec::from_slice(s1.as_bytes());
|
||
let s2: String = String::from_str(from_utf8(v.as_slice()).unwrap());
|
||
let mut i: uint = 0u;
|
||
let n1: uint = s1.len();
|
||
let n2: uint = v.len();
|
||
assert_eq!(n1, n2);
|
||
while i < n1 {
|
||
let a: u8 = s1.as_bytes()[i];
|
||
let b: u8 = s2.as_bytes()[i];
|
||
debug!("{}", a);
|
||
debug!("{}", b);
|
||
assert_eq!(a, b);
|
||
i += 1u;
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_contains() {
|
||
assert!("abcde".contains("bcd"));
|
||
assert!("abcde".contains("abcd"));
|
||
assert!("abcde".contains("bcde"));
|
||
assert!("abcde".contains(""));
|
||
assert!("".contains(""));
|
||
assert!(!"abcde".contains("def"));
|
||
assert!(!"".contains("a"));
|
||
|
||
let data = "ประเทศไทย中华Việt Nam";
|
||
assert!(data.contains("ประเ"));
|
||
assert!(data.contains("ะเ"));
|
||
assert!(data.contains("中华"));
|
||
assert!(!data.contains("ไท华"));
|
||
}
|
||
|
||
#[test]
|
||
fn test_contains_char() {
|
||
assert!("abc".contains_char('b'));
|
||
assert!("a".contains_char('a'));
|
||
assert!(!"abc".contains_char('d'));
|
||
assert!(!"".contains_char('a'));
|
||
}
|
||
|
||
#[test]
|
||
fn test_truncate_utf16_at_nul() {
|
||
let v = [];
|
||
assert_eq!(truncate_utf16_at_nul(v), &[]);
|
||
|
||
let v = [0, 2, 3];
|
||
assert_eq!(truncate_utf16_at_nul(v), &[]);
|
||
|
||
let v = [1, 0, 3];
|
||
assert_eq!(truncate_utf16_at_nul(v), &[1]);
|
||
|
||
let v = [1, 2, 0];
|
||
assert_eq!(truncate_utf16_at_nul(v), &[1, 2]);
|
||
|
||
let v = [1, 2, 3];
|
||
assert_eq!(truncate_utf16_at_nul(v), &[1, 2, 3]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_char_at() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let v = vec!['ศ','ไ','ท','ย','中','华','V','i','ệ','t',' ','N','a','m'];
|
||
let mut pos = 0;
|
||
for ch in v.iter() {
|
||
assert!(s.char_at(pos) == *ch);
|
||
pos += String::from_char(1, *ch).len();
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_char_at_reverse() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let v = vec!['ศ','ไ','ท','ย','中','华','V','i','ệ','t',' ','N','a','m'];
|
||
let mut pos = s.len();
|
||
for ch in v.iter().rev() {
|
||
assert!(s.char_at_reverse(pos) == *ch);
|
||
pos -= String::from_char(1, *ch).len();
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_escape_unicode() {
|
||
assert_eq!("abc".escape_unicode(), String::from_str("\\x61\\x62\\x63"));
|
||
assert_eq!("a c".escape_unicode(), String::from_str("\\x61\\x20\\x63"));
|
||
assert_eq!("\r\n\t".escape_unicode(), String::from_str("\\x0d\\x0a\\x09"));
|
||
assert_eq!("'\"\\".escape_unicode(), String::from_str("\\x27\\x22\\x5c"));
|
||
assert_eq!("\x00\x01\xfe\xff".escape_unicode(), String::from_str("\\x00\\x01\\xfe\\xff"));
|
||
assert_eq!("\u0100\uffff".escape_unicode(), String::from_str("\\u0100\\uffff"));
|
||
assert_eq!("\U00010000\U0010ffff".escape_unicode(),
|
||
String::from_str("\\U00010000\\U0010ffff"));
|
||
assert_eq!("ab\ufb00".escape_unicode(), String::from_str("\\x61\\x62\\ufb00"));
|
||
assert_eq!("\U0001d4ea\r".escape_unicode(), String::from_str("\\U0001d4ea\\x0d"));
|
||
}
|
||
|
||
#[test]
|
||
fn test_escape_default() {
|
||
assert_eq!("abc".escape_default(), String::from_str("abc"));
|
||
assert_eq!("a c".escape_default(), String::from_str("a c"));
|
||
assert_eq!("\r\n\t".escape_default(), String::from_str("\\r\\n\\t"));
|
||
assert_eq!("'\"\\".escape_default(), String::from_str("\\'\\\"\\\\"));
|
||
assert_eq!("\u0100\uffff".escape_default(), String::from_str("\\u0100\\uffff"));
|
||
assert_eq!("\U00010000\U0010ffff".escape_default(),
|
||
String::from_str("\\U00010000\\U0010ffff"));
|
||
assert_eq!("ab\ufb00".escape_default(), String::from_str("ab\\ufb00"));
|
||
assert_eq!("\U0001d4ea\r".escape_default(), String::from_str("\\U0001d4ea\\r"));
|
||
}
|
||
|
||
#[test]
|
||
fn test_total_ord() {
|
||
"1234".cmp(&("123")) == Greater;
|
||
"123".cmp(&("1234")) == Less;
|
||
"1234".cmp(&("1234")) == Equal;
|
||
"12345555".cmp(&("123456")) == Less;
|
||
"22".cmp(&("1234")) == Greater;
|
||
}
|
||
|
||
#[test]
|
||
fn test_char_range_at() {
|
||
let data = "b¢€𤭢𤭢€¢b";
|
||
assert_eq!('b', data.char_range_at(0).ch);
|
||
assert_eq!('¢', data.char_range_at(1).ch);
|
||
assert_eq!('€', data.char_range_at(3).ch);
|
||
assert_eq!('𤭢', data.char_range_at(6).ch);
|
||
assert_eq!('𤭢', data.char_range_at(10).ch);
|
||
assert_eq!('€', data.char_range_at(14).ch);
|
||
assert_eq!('¢', data.char_range_at(17).ch);
|
||
assert_eq!('b', data.char_range_at(19).ch);
|
||
}
|
||
|
||
#[test]
|
||
fn test_char_range_at_reverse_underflow() {
|
||
assert_eq!("abc".char_range_at_reverse(0).next, 0);
|
||
}
|
||
|
||
#[test]
|
||
fn test_iterator() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let v = ['ศ','ไ','ท','ย','中','华','V','i','ệ','t',' ','N','a','m'];
|
||
|
||
let mut pos = 0;
|
||
let mut it = s.chars();
|
||
|
||
for c in it {
|
||
assert_eq!(c, v[pos]);
|
||
pos += 1;
|
||
}
|
||
assert_eq!(pos, v.len());
|
||
}
|
||
|
||
#[test]
|
||
fn test_rev_iterator() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let v = ['m', 'a', 'N', ' ', 't', 'ệ','i','V','华','中','ย','ท','ไ','ศ'];
|
||
|
||
let mut pos = 0;
|
||
let mut it = s.chars().rev();
|
||
|
||
for c in it {
|
||
assert_eq!(c, v[pos]);
|
||
pos += 1;
|
||
}
|
||
assert_eq!(pos, v.len());
|
||
}
|
||
|
||
#[test]
|
||
fn test_chars_decoding() {
|
||
let mut bytes = [0u8, ..4];
|
||
for c in range(0u32, 0x110000).filter_map(|c| ::core::char::from_u32(c)) {
|
||
let len = c.encode_utf8(bytes);
|
||
let s = ::core::str::from_utf8(bytes.slice_to(len)).unwrap();
|
||
if Some(c) != s.chars().next() {
|
||
fail!("character {:x}={} does not decode correctly", c as u32, c);
|
||
}
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_chars_rev_decoding() {
|
||
let mut bytes = [0u8, ..4];
|
||
for c in range(0u32, 0x110000).filter_map(|c| ::core::char::from_u32(c)) {
|
||
let len = c.encode_utf8(bytes);
|
||
let s = ::core::str::from_utf8(bytes.slice_to(len)).unwrap();
|
||
if Some(c) != s.chars().rev().next() {
|
||
fail!("character {:x}={} does not decode correctly", c as u32, c);
|
||
}
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_iterator_clone() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let mut it = s.chars();
|
||
it.next();
|
||
assert!(it.zip(it.clone()).all(|(x,y)| x == y));
|
||
}
|
||
|
||
#[test]
|
||
fn test_bytesator() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let v = [
|
||
224, 184, 168, 224, 185, 132, 224, 184, 151, 224, 184, 162, 228,
|
||
184, 173, 229, 141, 142, 86, 105, 225, 187, 135, 116, 32, 78, 97,
|
||
109
|
||
];
|
||
let mut pos = 0;
|
||
|
||
for b in s.bytes() {
|
||
assert_eq!(b, v[pos]);
|
||
pos += 1;
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_bytes_revator() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let v = [
|
||
224, 184, 168, 224, 185, 132, 224, 184, 151, 224, 184, 162, 228,
|
||
184, 173, 229, 141, 142, 86, 105, 225, 187, 135, 116, 32, 78, 97,
|
||
109
|
||
];
|
||
let mut pos = v.len();
|
||
|
||
for b in s.bytes().rev() {
|
||
pos -= 1;
|
||
assert_eq!(b, v[pos]);
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_char_indicesator() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let p = [0, 3, 6, 9, 12, 15, 18, 19, 20, 23, 24, 25, 26, 27];
|
||
let v = ['ศ','ไ','ท','ย','中','华','V','i','ệ','t',' ','N','a','m'];
|
||
|
||
let mut pos = 0;
|
||
let mut it = s.char_indices();
|
||
|
||
for c in it {
|
||
assert_eq!(c, (p[pos], v[pos]));
|
||
pos += 1;
|
||
}
|
||
assert_eq!(pos, v.len());
|
||
assert_eq!(pos, p.len());
|
||
}
|
||
|
||
#[test]
|
||
fn test_char_indices_revator() {
|
||
let s = "ศไทย中华Việt Nam";
|
||
let p = [27, 26, 25, 24, 23, 20, 19, 18, 15, 12, 9, 6, 3, 0];
|
||
let v = ['m', 'a', 'N', ' ', 't', 'ệ','i','V','华','中','ย','ท','ไ','ศ'];
|
||
|
||
let mut pos = 0;
|
||
let mut it = s.char_indices().rev();
|
||
|
||
for c in it {
|
||
assert_eq!(c, (p[pos], v[pos]));
|
||
pos += 1;
|
||
}
|
||
assert_eq!(pos, v.len());
|
||
assert_eq!(pos, p.len());
|
||
}
|
||
|
||
#[test]
|
||
fn test_split_char_iterator() {
|
||
let data = "\nMäry häd ä little lämb\nLittle lämb\n";
|
||
|
||
let split: Vec<&str> = data.split(' ').collect();
|
||
assert_eq!( split, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
|
||
|
||
let mut rsplit: Vec<&str> = data.split(' ').rev().collect();
|
||
rsplit.reverse();
|
||
assert_eq!(rsplit, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
|
||
|
||
let split: Vec<&str> = data.split(|c: char| c == ' ').collect();
|
||
assert_eq!( split, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
|
||
|
||
let mut rsplit: Vec<&str> = data.split(|c: char| c == ' ').rev().collect();
|
||
rsplit.reverse();
|
||
assert_eq!(rsplit, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
|
||
|
||
// Unicode
|
||
let split: Vec<&str> = data.split('ä').collect();
|
||
assert_eq!( split, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
|
||
|
||
let mut rsplit: Vec<&str> = data.split('ä').rev().collect();
|
||
rsplit.reverse();
|
||
assert_eq!(rsplit, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
|
||
|
||
let split: Vec<&str> = data.split(|c: char| c == 'ä').collect();
|
||
assert_eq!( split, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
|
||
|
||
let mut rsplit: Vec<&str> = data.split(|c: char| c == 'ä').rev().collect();
|
||
rsplit.reverse();
|
||
assert_eq!(rsplit, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_splitn_char_iterator() {
|
||
let data = "\nMäry häd ä little lämb\nLittle lämb\n";
|
||
|
||
let split: Vec<&str> = data.splitn(' ', 3).collect();
|
||
assert_eq!(split, vec!["\nMäry", "häd", "ä", "little lämb\nLittle lämb\n"]);
|
||
|
||
let split: Vec<&str> = data.splitn(|c: char| c == ' ', 3).collect();
|
||
assert_eq!(split, vec!["\nMäry", "häd", "ä", "little lämb\nLittle lämb\n"]);
|
||
|
||
// Unicode
|
||
let split: Vec<&str> = data.splitn('ä', 3).collect();
|
||
assert_eq!(split, vec!["\nM", "ry h", "d ", " little lämb\nLittle lämb\n"]);
|
||
|
||
let split: Vec<&str> = data.splitn(|c: char| c == 'ä', 3).collect();
|
||
assert_eq!(split, vec!["\nM", "ry h", "d ", " little lämb\nLittle lämb\n"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_rsplitn_char_iterator() {
|
||
let data = "\nMäry häd ä little lämb\nLittle lämb\n";
|
||
|
||
let mut split: Vec<&str> = data.rsplitn(' ', 3).collect();
|
||
split.reverse();
|
||
assert_eq!(split, vec!["\nMäry häd ä", "little", "lämb\nLittle", "lämb\n"]);
|
||
|
||
let mut split: Vec<&str> = data.rsplitn(|c: char| c == ' ', 3).collect();
|
||
split.reverse();
|
||
assert_eq!(split, vec!["\nMäry häd ä", "little", "lämb\nLittle", "lämb\n"]);
|
||
|
||
// Unicode
|
||
let mut split: Vec<&str> = data.rsplitn('ä', 3).collect();
|
||
split.reverse();
|
||
assert_eq!(split, vec!["\nMäry häd ", " little l", "mb\nLittle l", "mb\n"]);
|
||
|
||
let mut split: Vec<&str> = data.rsplitn(|c: char| c == 'ä', 3).collect();
|
||
split.reverse();
|
||
assert_eq!(split, vec!["\nMäry häd ", " little l", "mb\nLittle l", "mb\n"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_split_char_iterator_no_trailing() {
|
||
let data = "\nMäry häd ä little lämb\nLittle lämb\n";
|
||
|
||
let split: Vec<&str> = data.split('\n').collect();
|
||
assert_eq!(split, vec!["", "Märy häd ä little lämb", "Little lämb", ""]);
|
||
|
||
let split: Vec<&str> = data.split_terminator('\n').collect();
|
||
assert_eq!(split, vec!["", "Märy häd ä little lämb", "Little lämb"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_rev_split_char_iterator_no_trailing() {
|
||
let data = "\nMäry häd ä little lämb\nLittle lämb\n";
|
||
|
||
let mut split: Vec<&str> = data.split('\n').rev().collect();
|
||
split.reverse();
|
||
assert_eq!(split, vec!["", "Märy häd ä little lämb", "Little lämb", ""]);
|
||
|
||
let mut split: Vec<&str> = data.split_terminator('\n').rev().collect();
|
||
split.reverse();
|
||
assert_eq!(split, vec!["", "Märy häd ä little lämb", "Little lämb"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_words() {
|
||
let data = "\n \tMäry häd\tä little lämb\nLittle lämb\n";
|
||
let words: Vec<&str> = data.words().collect();
|
||
assert_eq!(words, vec!["Märy", "häd", "ä", "little", "lämb", "Little", "lämb"])
|
||
}
|
||
|
||
#[test]
|
||
fn test_nfd_chars() {
|
||
assert_eq!("abc".nfd_chars().collect::<String>(), String::from_str("abc"));
|
||
assert_eq!("\u1e0b\u01c4".nfd_chars().collect::<String>(),
|
||
String::from_str("d\u0307\u01c4"));
|
||
assert_eq!("\u2026".nfd_chars().collect::<String>(), String::from_str("\u2026"));
|
||
assert_eq!("\u2126".nfd_chars().collect::<String>(), String::from_str("\u03a9"));
|
||
assert_eq!("\u1e0b\u0323".nfd_chars().collect::<String>(),
|
||
String::from_str("d\u0323\u0307"));
|
||
assert_eq!("\u1e0d\u0307".nfd_chars().collect::<String>(),
|
||
String::from_str("d\u0323\u0307"));
|
||
assert_eq!("a\u0301".nfd_chars().collect::<String>(), String::from_str("a\u0301"));
|
||
assert_eq!("\u0301a".nfd_chars().collect::<String>(), String::from_str("\u0301a"));
|
||
assert_eq!("\ud4db".nfd_chars().collect::<String>(),
|
||
String::from_str("\u1111\u1171\u11b6"));
|
||
assert_eq!("\uac1c".nfd_chars().collect::<String>(), String::from_str("\u1100\u1162"));
|
||
}
|
||
|
||
#[test]
|
||
fn test_nfkd_chars() {
|
||
assert_eq!("abc".nfkd_chars().collect::<String>(), String::from_str("abc"));
|
||
assert_eq!("\u1e0b\u01c4".nfkd_chars().collect::<String>(),
|
||
String::from_str("d\u0307DZ\u030c"));
|
||
assert_eq!("\u2026".nfkd_chars().collect::<String>(), String::from_str("..."));
|
||
assert_eq!("\u2126".nfkd_chars().collect::<String>(), String::from_str("\u03a9"));
|
||
assert_eq!("\u1e0b\u0323".nfkd_chars().collect::<String>(),
|
||
String::from_str("d\u0323\u0307"));
|
||
assert_eq!("\u1e0d\u0307".nfkd_chars().collect::<String>(),
|
||
String::from_str("d\u0323\u0307"));
|
||
assert_eq!("a\u0301".nfkd_chars().collect::<String>(), String::from_str("a\u0301"));
|
||
assert_eq!("\u0301a".nfkd_chars().collect::<String>(),
|
||
String::from_str("\u0301a"));
|
||
assert_eq!("\ud4db".nfkd_chars().collect::<String>(),
|
||
String::from_str("\u1111\u1171\u11b6"));
|
||
assert_eq!("\uac1c".nfkd_chars().collect::<String>(), String::from_str("\u1100\u1162"));
|
||
}
|
||
|
||
#[test]
|
||
fn test_lines() {
|
||
let data = "\nMäry häd ä little lämb\n\nLittle lämb\n";
|
||
let lines: Vec<&str> = data.lines().collect();
|
||
assert_eq!(lines, vec!["", "Märy häd ä little lämb", "", "Little lämb"]);
|
||
|
||
let data = "\nMäry häd ä little lämb\n\nLittle lämb"; // no trailing \n
|
||
let lines: Vec<&str> = data.lines().collect();
|
||
assert_eq!(lines, vec!["", "Märy häd ä little lämb", "", "Little lämb"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_graphemes() {
|
||
use std::iter::order;
|
||
// official Unicode test data
|
||
// from http://www.unicode.org/Public/UCD/latest/ucd/auxiliary/GraphemeBreakTest.txt
|
||
let test_same = [
|
||
("\u0020\u0020", &["\u0020", "\u0020"]), ("\u0020\u0308\u0020", &["\u0020\u0308",
|
||
"\u0020"]), ("\u0020\u000D", &["\u0020", "\u000D"]), ("\u0020\u0308\u000D",
|
||
&["\u0020\u0308", "\u000D"]), ("\u0020\u000A", &["\u0020", "\u000A"]),
|
||
("\u0020\u0308\u000A", &["\u0020\u0308", "\u000A"]), ("\u0020\u0001", &["\u0020",
|
||
"\u0001"]), ("\u0020\u0308\u0001", &["\u0020\u0308", "\u0001"]), ("\u0020\u0300",
|
||
&["\u0020\u0300"]), ("\u0020\u0308\u0300", &["\u0020\u0308\u0300"]), ("\u0020\u1100",
|
||
&["\u0020", "\u1100"]), ("\u0020\u0308\u1100", &["\u0020\u0308", "\u1100"]),
|
||
("\u0020\u1160", &["\u0020", "\u1160"]), ("\u0020\u0308\u1160", &["\u0020\u0308",
|
||
"\u1160"]), ("\u0020\u11A8", &["\u0020", "\u11A8"]), ("\u0020\u0308\u11A8",
|
||
&["\u0020\u0308", "\u11A8"]), ("\u0020\uAC00", &["\u0020", "\uAC00"]),
|
||
("\u0020\u0308\uAC00", &["\u0020\u0308", "\uAC00"]), ("\u0020\uAC01", &["\u0020",
|
||
"\uAC01"]), ("\u0020\u0308\uAC01", &["\u0020\u0308", "\uAC01"]), ("\u0020\U0001F1E6",
|
||
&["\u0020", "\U0001F1E6"]), ("\u0020\u0308\U0001F1E6", &["\u0020\u0308",
|
||
"\U0001F1E6"]), ("\u0020\u0378", &["\u0020", "\u0378"]), ("\u0020\u0308\u0378",
|
||
&["\u0020\u0308", "\u0378"]), ("\u000D\u0020", &["\u000D", "\u0020"]),
|
||
("\u000D\u0308\u0020", &["\u000D", "\u0308", "\u0020"]), ("\u000D\u000D", &["\u000D",
|
||
"\u000D"]), ("\u000D\u0308\u000D", &["\u000D", "\u0308", "\u000D"]), ("\u000D\u000A",
|
||
&["\u000D\u000A"]), ("\u000D\u0308\u000A", &["\u000D", "\u0308", "\u000A"]),
|
||
("\u000D\u0001", &["\u000D", "\u0001"]), ("\u000D\u0308\u0001", &["\u000D", "\u0308",
|
||
"\u0001"]), ("\u000D\u0300", &["\u000D", "\u0300"]), ("\u000D\u0308\u0300",
|
||
&["\u000D", "\u0308\u0300"]), ("\u000D\u0903", &["\u000D", "\u0903"]),
|
||
("\u000D\u1100", &["\u000D", "\u1100"]), ("\u000D\u0308\u1100", &["\u000D", "\u0308",
|
||
"\u1100"]), ("\u000D\u1160", &["\u000D", "\u1160"]), ("\u000D\u0308\u1160",
|
||
&["\u000D", "\u0308", "\u1160"]), ("\u000D\u11A8", &["\u000D", "\u11A8"]),
|
||
("\u000D\u0308\u11A8", &["\u000D", "\u0308", "\u11A8"]), ("\u000D\uAC00", &["\u000D",
|
||
"\uAC00"]), ("\u000D\u0308\uAC00", &["\u000D", "\u0308", "\uAC00"]), ("\u000D\uAC01",
|
||
&["\u000D", "\uAC01"]), ("\u000D\u0308\uAC01", &["\u000D", "\u0308", "\uAC01"]),
|
||
("\u000D\U0001F1E6", &["\u000D", "\U0001F1E6"]), ("\u000D\u0308\U0001F1E6",
|
||
&["\u000D", "\u0308", "\U0001F1E6"]), ("\u000D\u0378", &["\u000D", "\u0378"]),
|
||
("\u000D\u0308\u0378", &["\u000D", "\u0308", "\u0378"]), ("\u000A\u0020", &["\u000A",
|
||
"\u0020"]), ("\u000A\u0308\u0020", &["\u000A", "\u0308", "\u0020"]), ("\u000A\u000D",
|
||
&["\u000A", "\u000D"]), ("\u000A\u0308\u000D", &["\u000A", "\u0308", "\u000D"]),
|
||
("\u000A\u000A", &["\u000A", "\u000A"]), ("\u000A\u0308\u000A", &["\u000A", "\u0308",
|
||
"\u000A"]), ("\u000A\u0001", &["\u000A", "\u0001"]), ("\u000A\u0308\u0001",
|
||
&["\u000A", "\u0308", "\u0001"]), ("\u000A\u0300", &["\u000A", "\u0300"]),
|
||
("\u000A\u0308\u0300", &["\u000A", "\u0308\u0300"]), ("\u000A\u0903", &["\u000A",
|
||
"\u0903"]), ("\u000A\u1100", &["\u000A", "\u1100"]), ("\u000A\u0308\u1100",
|
||
&["\u000A", "\u0308", "\u1100"]), ("\u000A\u1160", &["\u000A", "\u1160"]),
|
||
("\u000A\u0308\u1160", &["\u000A", "\u0308", "\u1160"]), ("\u000A\u11A8", &["\u000A",
|
||
"\u11A8"]), ("\u000A\u0308\u11A8", &["\u000A", "\u0308", "\u11A8"]), ("\u000A\uAC00",
|
||
&["\u000A", "\uAC00"]), ("\u000A\u0308\uAC00", &["\u000A", "\u0308", "\uAC00"]),
|
||
("\u000A\uAC01", &["\u000A", "\uAC01"]), ("\u000A\u0308\uAC01", &["\u000A", "\u0308",
|
||
"\uAC01"]), ("\u000A\U0001F1E6", &["\u000A", "\U0001F1E6"]),
|
||
("\u000A\u0308\U0001F1E6", &["\u000A", "\u0308", "\U0001F1E6"]), ("\u000A\u0378",
|
||
&["\u000A", "\u0378"]), ("\u000A\u0308\u0378", &["\u000A", "\u0308", "\u0378"]),
|
||
("\u0001\u0020", &["\u0001", "\u0020"]), ("\u0001\u0308\u0020", &["\u0001", "\u0308",
|
||
"\u0020"]), ("\u0001\u000D", &["\u0001", "\u000D"]), ("\u0001\u0308\u000D",
|
||
&["\u0001", "\u0308", "\u000D"]), ("\u0001\u000A", &["\u0001", "\u000A"]),
|
||
("\u0001\u0308\u000A", &["\u0001", "\u0308", "\u000A"]), ("\u0001\u0001", &["\u0001",
|
||
"\u0001"]), ("\u0001\u0308\u0001", &["\u0001", "\u0308", "\u0001"]), ("\u0001\u0300",
|
||
&["\u0001", "\u0300"]), ("\u0001\u0308\u0300", &["\u0001", "\u0308\u0300"]),
|
||
("\u0001\u0903", &["\u0001", "\u0903"]), ("\u0001\u1100", &["\u0001", "\u1100"]),
|
||
("\u0001\u0308\u1100", &["\u0001", "\u0308", "\u1100"]), ("\u0001\u1160", &["\u0001",
|
||
"\u1160"]), ("\u0001\u0308\u1160", &["\u0001", "\u0308", "\u1160"]), ("\u0001\u11A8",
|
||
&["\u0001", "\u11A8"]), ("\u0001\u0308\u11A8", &["\u0001", "\u0308", "\u11A8"]),
|
||
("\u0001\uAC00", &["\u0001", "\uAC00"]), ("\u0001\u0308\uAC00", &["\u0001", "\u0308",
|
||
"\uAC00"]), ("\u0001\uAC01", &["\u0001", "\uAC01"]), ("\u0001\u0308\uAC01",
|
||
&["\u0001", "\u0308", "\uAC01"]), ("\u0001\U0001F1E6", &["\u0001", "\U0001F1E6"]),
|
||
("\u0001\u0308\U0001F1E6", &["\u0001", "\u0308", "\U0001F1E6"]), ("\u0001\u0378",
|
||
&["\u0001", "\u0378"]), ("\u0001\u0308\u0378", &["\u0001", "\u0308", "\u0378"]),
|
||
("\u0300\u0020", &["\u0300", "\u0020"]), ("\u0300\u0308\u0020", &["\u0300\u0308",
|
||
"\u0020"]), ("\u0300\u000D", &["\u0300", "\u000D"]), ("\u0300\u0308\u000D",
|
||
&["\u0300\u0308", "\u000D"]), ("\u0300\u000A", &["\u0300", "\u000A"]),
|
||
("\u0300\u0308\u000A", &["\u0300\u0308", "\u000A"]), ("\u0300\u0001", &["\u0300",
|
||
"\u0001"]), ("\u0300\u0308\u0001", &["\u0300\u0308", "\u0001"]), ("\u0300\u0300",
|
||
&["\u0300\u0300"]), ("\u0300\u0308\u0300", &["\u0300\u0308\u0300"]), ("\u0300\u1100",
|
||
&["\u0300", "\u1100"]), ("\u0300\u0308\u1100", &["\u0300\u0308", "\u1100"]),
|
||
("\u0300\u1160", &["\u0300", "\u1160"]), ("\u0300\u0308\u1160", &["\u0300\u0308",
|
||
"\u1160"]), ("\u0300\u11A8", &["\u0300", "\u11A8"]), ("\u0300\u0308\u11A8",
|
||
&["\u0300\u0308", "\u11A8"]), ("\u0300\uAC00", &["\u0300", "\uAC00"]),
|
||
("\u0300\u0308\uAC00", &["\u0300\u0308", "\uAC00"]), ("\u0300\uAC01", &["\u0300",
|
||
"\uAC01"]), ("\u0300\u0308\uAC01", &["\u0300\u0308", "\uAC01"]), ("\u0300\U0001F1E6",
|
||
&["\u0300", "\U0001F1E6"]), ("\u0300\u0308\U0001F1E6", &["\u0300\u0308",
|
||
"\U0001F1E6"]), ("\u0300\u0378", &["\u0300", "\u0378"]), ("\u0300\u0308\u0378",
|
||
&["\u0300\u0308", "\u0378"]), ("\u0903\u0020", &["\u0903", "\u0020"]),
|
||
("\u0903\u0308\u0020", &["\u0903\u0308", "\u0020"]), ("\u0903\u000D", &["\u0903",
|
||
"\u000D"]), ("\u0903\u0308\u000D", &["\u0903\u0308", "\u000D"]), ("\u0903\u000A",
|
||
&["\u0903", "\u000A"]), ("\u0903\u0308\u000A", &["\u0903\u0308", "\u000A"]),
|
||
("\u0903\u0001", &["\u0903", "\u0001"]), ("\u0903\u0308\u0001", &["\u0903\u0308",
|
||
"\u0001"]), ("\u0903\u0300", &["\u0903\u0300"]), ("\u0903\u0308\u0300",
|
||
&["\u0903\u0308\u0300"]), ("\u0903\u1100", &["\u0903", "\u1100"]),
|
||
("\u0903\u0308\u1100", &["\u0903\u0308", "\u1100"]), ("\u0903\u1160", &["\u0903",
|
||
"\u1160"]), ("\u0903\u0308\u1160", &["\u0903\u0308", "\u1160"]), ("\u0903\u11A8",
|
||
&["\u0903", "\u11A8"]), ("\u0903\u0308\u11A8", &["\u0903\u0308", "\u11A8"]),
|
||
("\u0903\uAC00", &["\u0903", "\uAC00"]), ("\u0903\u0308\uAC00", &["\u0903\u0308",
|
||
"\uAC00"]), ("\u0903\uAC01", &["\u0903", "\uAC01"]), ("\u0903\u0308\uAC01",
|
||
&["\u0903\u0308", "\uAC01"]), ("\u0903\U0001F1E6", &["\u0903", "\U0001F1E6"]),
|
||
("\u0903\u0308\U0001F1E6", &["\u0903\u0308", "\U0001F1E6"]), ("\u0903\u0378",
|
||
&["\u0903", "\u0378"]), ("\u0903\u0308\u0378", &["\u0903\u0308", "\u0378"]),
|
||
("\u1100\u0020", &["\u1100", "\u0020"]), ("\u1100\u0308\u0020", &["\u1100\u0308",
|
||
"\u0020"]), ("\u1100\u000D", &["\u1100", "\u000D"]), ("\u1100\u0308\u000D",
|
||
&["\u1100\u0308", "\u000D"]), ("\u1100\u000A", &["\u1100", "\u000A"]),
|
||
("\u1100\u0308\u000A", &["\u1100\u0308", "\u000A"]), ("\u1100\u0001", &["\u1100",
|
||
"\u0001"]), ("\u1100\u0308\u0001", &["\u1100\u0308", "\u0001"]), ("\u1100\u0300",
|
||
&["\u1100\u0300"]), ("\u1100\u0308\u0300", &["\u1100\u0308\u0300"]), ("\u1100\u1100",
|
||
&["\u1100\u1100"]), ("\u1100\u0308\u1100", &["\u1100\u0308", "\u1100"]),
|
||
("\u1100\u1160", &["\u1100\u1160"]), ("\u1100\u0308\u1160", &["\u1100\u0308",
|
||
"\u1160"]), ("\u1100\u11A8", &["\u1100", "\u11A8"]), ("\u1100\u0308\u11A8",
|
||
&["\u1100\u0308", "\u11A8"]), ("\u1100\uAC00", &["\u1100\uAC00"]),
|
||
("\u1100\u0308\uAC00", &["\u1100\u0308", "\uAC00"]), ("\u1100\uAC01",
|
||
&["\u1100\uAC01"]), ("\u1100\u0308\uAC01", &["\u1100\u0308", "\uAC01"]),
|
||
("\u1100\U0001F1E6", &["\u1100", "\U0001F1E6"]), ("\u1100\u0308\U0001F1E6",
|
||
&["\u1100\u0308", "\U0001F1E6"]), ("\u1100\u0378", &["\u1100", "\u0378"]),
|
||
("\u1100\u0308\u0378", &["\u1100\u0308", "\u0378"]), ("\u1160\u0020", &["\u1160",
|
||
"\u0020"]), ("\u1160\u0308\u0020", &["\u1160\u0308", "\u0020"]), ("\u1160\u000D",
|
||
&["\u1160", "\u000D"]), ("\u1160\u0308\u000D", &["\u1160\u0308", "\u000D"]),
|
||
("\u1160\u000A", &["\u1160", "\u000A"]), ("\u1160\u0308\u000A", &["\u1160\u0308",
|
||
"\u000A"]), ("\u1160\u0001", &["\u1160", "\u0001"]), ("\u1160\u0308\u0001",
|
||
&["\u1160\u0308", "\u0001"]), ("\u1160\u0300", &["\u1160\u0300"]),
|
||
("\u1160\u0308\u0300", &["\u1160\u0308\u0300"]), ("\u1160\u1100", &["\u1160",
|
||
"\u1100"]), ("\u1160\u0308\u1100", &["\u1160\u0308", "\u1100"]), ("\u1160\u1160",
|
||
&["\u1160\u1160"]), ("\u1160\u0308\u1160", &["\u1160\u0308", "\u1160"]),
|
||
("\u1160\u11A8", &["\u1160\u11A8"]), ("\u1160\u0308\u11A8", &["\u1160\u0308",
|
||
"\u11A8"]), ("\u1160\uAC00", &["\u1160", "\uAC00"]), ("\u1160\u0308\uAC00",
|
||
&["\u1160\u0308", "\uAC00"]), ("\u1160\uAC01", &["\u1160", "\uAC01"]),
|
||
("\u1160\u0308\uAC01", &["\u1160\u0308", "\uAC01"]), ("\u1160\U0001F1E6", &["\u1160",
|
||
"\U0001F1E6"]), ("\u1160\u0308\U0001F1E6", &["\u1160\u0308", "\U0001F1E6"]),
|
||
("\u1160\u0378", &["\u1160", "\u0378"]), ("\u1160\u0308\u0378", &["\u1160\u0308",
|
||
"\u0378"]), ("\u11A8\u0020", &["\u11A8", "\u0020"]), ("\u11A8\u0308\u0020",
|
||
&["\u11A8\u0308", "\u0020"]), ("\u11A8\u000D", &["\u11A8", "\u000D"]),
|
||
("\u11A8\u0308\u000D", &["\u11A8\u0308", "\u000D"]), ("\u11A8\u000A", &["\u11A8",
|
||
"\u000A"]), ("\u11A8\u0308\u000A", &["\u11A8\u0308", "\u000A"]), ("\u11A8\u0001",
|
||
&["\u11A8", "\u0001"]), ("\u11A8\u0308\u0001", &["\u11A8\u0308", "\u0001"]),
|
||
("\u11A8\u0300", &["\u11A8\u0300"]), ("\u11A8\u0308\u0300", &["\u11A8\u0308\u0300"]),
|
||
("\u11A8\u1100", &["\u11A8", "\u1100"]), ("\u11A8\u0308\u1100", &["\u11A8\u0308",
|
||
"\u1100"]), ("\u11A8\u1160", &["\u11A8", "\u1160"]), ("\u11A8\u0308\u1160",
|
||
&["\u11A8\u0308", "\u1160"]), ("\u11A8\u11A8", &["\u11A8\u11A8"]),
|
||
("\u11A8\u0308\u11A8", &["\u11A8\u0308", "\u11A8"]), ("\u11A8\uAC00", &["\u11A8",
|
||
"\uAC00"]), ("\u11A8\u0308\uAC00", &["\u11A8\u0308", "\uAC00"]), ("\u11A8\uAC01",
|
||
&["\u11A8", "\uAC01"]), ("\u11A8\u0308\uAC01", &["\u11A8\u0308", "\uAC01"]),
|
||
("\u11A8\U0001F1E6", &["\u11A8", "\U0001F1E6"]), ("\u11A8\u0308\U0001F1E6",
|
||
&["\u11A8\u0308", "\U0001F1E6"]), ("\u11A8\u0378", &["\u11A8", "\u0378"]),
|
||
("\u11A8\u0308\u0378", &["\u11A8\u0308", "\u0378"]), ("\uAC00\u0020", &["\uAC00",
|
||
"\u0020"]), ("\uAC00\u0308\u0020", &["\uAC00\u0308", "\u0020"]), ("\uAC00\u000D",
|
||
&["\uAC00", "\u000D"]), ("\uAC00\u0308\u000D", &["\uAC00\u0308", "\u000D"]),
|
||
("\uAC00\u000A", &["\uAC00", "\u000A"]), ("\uAC00\u0308\u000A", &["\uAC00\u0308",
|
||
"\u000A"]), ("\uAC00\u0001", &["\uAC00", "\u0001"]), ("\uAC00\u0308\u0001",
|
||
&["\uAC00\u0308", "\u0001"]), ("\uAC00\u0300", &["\uAC00\u0300"]),
|
||
("\uAC00\u0308\u0300", &["\uAC00\u0308\u0300"]), ("\uAC00\u1100", &["\uAC00",
|
||
"\u1100"]), ("\uAC00\u0308\u1100", &["\uAC00\u0308", "\u1100"]), ("\uAC00\u1160",
|
||
&["\uAC00\u1160"]), ("\uAC00\u0308\u1160", &["\uAC00\u0308", "\u1160"]),
|
||
("\uAC00\u11A8", &["\uAC00\u11A8"]), ("\uAC00\u0308\u11A8", &["\uAC00\u0308",
|
||
"\u11A8"]), ("\uAC00\uAC00", &["\uAC00", "\uAC00"]), ("\uAC00\u0308\uAC00",
|
||
&["\uAC00\u0308", "\uAC00"]), ("\uAC00\uAC01", &["\uAC00", "\uAC01"]),
|
||
("\uAC00\u0308\uAC01", &["\uAC00\u0308", "\uAC01"]), ("\uAC00\U0001F1E6", &["\uAC00",
|
||
"\U0001F1E6"]), ("\uAC00\u0308\U0001F1E6", &["\uAC00\u0308", "\U0001F1E6"]),
|
||
("\uAC00\u0378", &["\uAC00", "\u0378"]), ("\uAC00\u0308\u0378", &["\uAC00\u0308",
|
||
"\u0378"]), ("\uAC01\u0020", &["\uAC01", "\u0020"]), ("\uAC01\u0308\u0020",
|
||
&["\uAC01\u0308", "\u0020"]), ("\uAC01\u000D", &["\uAC01", "\u000D"]),
|
||
("\uAC01\u0308\u000D", &["\uAC01\u0308", "\u000D"]), ("\uAC01\u000A", &["\uAC01",
|
||
"\u000A"]), ("\uAC01\u0308\u000A", &["\uAC01\u0308", "\u000A"]), ("\uAC01\u0001",
|
||
&["\uAC01", "\u0001"]), ("\uAC01\u0308\u0001", &["\uAC01\u0308", "\u0001"]),
|
||
("\uAC01\u0300", &["\uAC01\u0300"]), ("\uAC01\u0308\u0300", &["\uAC01\u0308\u0300"]),
|
||
("\uAC01\u1100", &["\uAC01", "\u1100"]), ("\uAC01\u0308\u1100", &["\uAC01\u0308",
|
||
"\u1100"]), ("\uAC01\u1160", &["\uAC01", "\u1160"]), ("\uAC01\u0308\u1160",
|
||
&["\uAC01\u0308", "\u1160"]), ("\uAC01\u11A8", &["\uAC01\u11A8"]),
|
||
("\uAC01\u0308\u11A8", &["\uAC01\u0308", "\u11A8"]), ("\uAC01\uAC00", &["\uAC01",
|
||
"\uAC00"]), ("\uAC01\u0308\uAC00", &["\uAC01\u0308", "\uAC00"]), ("\uAC01\uAC01",
|
||
&["\uAC01", "\uAC01"]), ("\uAC01\u0308\uAC01", &["\uAC01\u0308", "\uAC01"]),
|
||
("\uAC01\U0001F1E6", &["\uAC01", "\U0001F1E6"]), ("\uAC01\u0308\U0001F1E6",
|
||
&["\uAC01\u0308", "\U0001F1E6"]), ("\uAC01\u0378", &["\uAC01", "\u0378"]),
|
||
("\uAC01\u0308\u0378", &["\uAC01\u0308", "\u0378"]), ("\U0001F1E6\u0020",
|
||
&["\U0001F1E6", "\u0020"]), ("\U0001F1E6\u0308\u0020", &["\U0001F1E6\u0308",
|
||
"\u0020"]), ("\U0001F1E6\u000D", &["\U0001F1E6", "\u000D"]),
|
||
("\U0001F1E6\u0308\u000D", &["\U0001F1E6\u0308", "\u000D"]), ("\U0001F1E6\u000A",
|
||
&["\U0001F1E6", "\u000A"]), ("\U0001F1E6\u0308\u000A", &["\U0001F1E6\u0308",
|
||
"\u000A"]), ("\U0001F1E6\u0001", &["\U0001F1E6", "\u0001"]),
|
||
("\U0001F1E6\u0308\u0001", &["\U0001F1E6\u0308", "\u0001"]), ("\U0001F1E6\u0300",
|
||
&["\U0001F1E6\u0300"]), ("\U0001F1E6\u0308\u0300", &["\U0001F1E6\u0308\u0300"]),
|
||
("\U0001F1E6\u1100", &["\U0001F1E6", "\u1100"]), ("\U0001F1E6\u0308\u1100",
|
||
&["\U0001F1E6\u0308", "\u1100"]), ("\U0001F1E6\u1160", &["\U0001F1E6", "\u1160"]),
|
||
("\U0001F1E6\u0308\u1160", &["\U0001F1E6\u0308", "\u1160"]), ("\U0001F1E6\u11A8",
|
||
&["\U0001F1E6", "\u11A8"]), ("\U0001F1E6\u0308\u11A8", &["\U0001F1E6\u0308",
|
||
"\u11A8"]), ("\U0001F1E6\uAC00", &["\U0001F1E6", "\uAC00"]),
|
||
("\U0001F1E6\u0308\uAC00", &["\U0001F1E6\u0308", "\uAC00"]), ("\U0001F1E6\uAC01",
|
||
&["\U0001F1E6", "\uAC01"]), ("\U0001F1E6\u0308\uAC01", &["\U0001F1E6\u0308",
|
||
"\uAC01"]), ("\U0001F1E6\U0001F1E6", &["\U0001F1E6\U0001F1E6"]),
|
||
("\U0001F1E6\u0308\U0001F1E6", &["\U0001F1E6\u0308", "\U0001F1E6"]),
|
||
("\U0001F1E6\u0378", &["\U0001F1E6", "\u0378"]), ("\U0001F1E6\u0308\u0378",
|
||
&["\U0001F1E6\u0308", "\u0378"]), ("\u0378\u0020", &["\u0378", "\u0020"]),
|
||
("\u0378\u0308\u0020", &["\u0378\u0308", "\u0020"]), ("\u0378\u000D", &["\u0378",
|
||
"\u000D"]), ("\u0378\u0308\u000D", &["\u0378\u0308", "\u000D"]), ("\u0378\u000A",
|
||
&["\u0378", "\u000A"]), ("\u0378\u0308\u000A", &["\u0378\u0308", "\u000A"]),
|
||
("\u0378\u0001", &["\u0378", "\u0001"]), ("\u0378\u0308\u0001", &["\u0378\u0308",
|
||
"\u0001"]), ("\u0378\u0300", &["\u0378\u0300"]), ("\u0378\u0308\u0300",
|
||
&["\u0378\u0308\u0300"]), ("\u0378\u1100", &["\u0378", "\u1100"]),
|
||
("\u0378\u0308\u1100", &["\u0378\u0308", "\u1100"]), ("\u0378\u1160", &["\u0378",
|
||
"\u1160"]), ("\u0378\u0308\u1160", &["\u0378\u0308", "\u1160"]), ("\u0378\u11A8",
|
||
&["\u0378", "\u11A8"]), ("\u0378\u0308\u11A8", &["\u0378\u0308", "\u11A8"]),
|
||
("\u0378\uAC00", &["\u0378", "\uAC00"]), ("\u0378\u0308\uAC00", &["\u0378\u0308",
|
||
"\uAC00"]), ("\u0378\uAC01", &["\u0378", "\uAC01"]), ("\u0378\u0308\uAC01",
|
||
&["\u0378\u0308", "\uAC01"]), ("\u0378\U0001F1E6", &["\u0378", "\U0001F1E6"]),
|
||
("\u0378\u0308\U0001F1E6", &["\u0378\u0308", "\U0001F1E6"]), ("\u0378\u0378",
|
||
&["\u0378", "\u0378"]), ("\u0378\u0308\u0378", &["\u0378\u0308", "\u0378"]),
|
||
("\u0061\U0001F1E6\u0062", &["\u0061", "\U0001F1E6", "\u0062"]),
|
||
("\U0001F1F7\U0001F1FA", &["\U0001F1F7\U0001F1FA"]),
|
||
("\U0001F1F7\U0001F1FA\U0001F1F8", &["\U0001F1F7\U0001F1FA\U0001F1F8"]),
|
||
("\U0001F1F7\U0001F1FA\U0001F1F8\U0001F1EA",
|
||
&["\U0001F1F7\U0001F1FA\U0001F1F8\U0001F1EA"]),
|
||
("\U0001F1F7\U0001F1FA\u200B\U0001F1F8\U0001F1EA", &["\U0001F1F7\U0001F1FA", "\u200B",
|
||
"\U0001F1F8\U0001F1EA"]), ("\U0001F1E6\U0001F1E7\U0001F1E8",
|
||
&["\U0001F1E6\U0001F1E7\U0001F1E8"]), ("\U0001F1E6\u200D\U0001F1E7\U0001F1E8",
|
||
&["\U0001F1E6\u200D", "\U0001F1E7\U0001F1E8"]),
|
||
("\U0001F1E6\U0001F1E7\u200D\U0001F1E8", &["\U0001F1E6\U0001F1E7\u200D",
|
||
"\U0001F1E8"]), ("\u0020\u200D\u0646", &["\u0020\u200D", "\u0646"]),
|
||
("\u0646\u200D\u0020", &["\u0646\u200D", "\u0020"]),
|
||
];
|
||
|
||
let test_diff = [
|
||
("\u0020\u0903", &["\u0020\u0903"], &["\u0020", "\u0903"]), ("\u0020\u0308\u0903",
|
||
&["\u0020\u0308\u0903"], &["\u0020\u0308", "\u0903"]), ("\u000D\u0308\u0903",
|
||
&["\u000D", "\u0308\u0903"], &["\u000D", "\u0308", "\u0903"]), ("\u000A\u0308\u0903",
|
||
&["\u000A", "\u0308\u0903"], &["\u000A", "\u0308", "\u0903"]), ("\u0001\u0308\u0903",
|
||
&["\u0001", "\u0308\u0903"], &["\u0001", "\u0308", "\u0903"]), ("\u0300\u0903",
|
||
&["\u0300\u0903"], &["\u0300", "\u0903"]), ("\u0300\u0308\u0903",
|
||
&["\u0300\u0308\u0903"], &["\u0300\u0308", "\u0903"]), ("\u0903\u0903",
|
||
&["\u0903\u0903"], &["\u0903", "\u0903"]), ("\u0903\u0308\u0903",
|
||
&["\u0903\u0308\u0903"], &["\u0903\u0308", "\u0903"]), ("\u1100\u0903",
|
||
&["\u1100\u0903"], &["\u1100", "\u0903"]), ("\u1100\u0308\u0903",
|
||
&["\u1100\u0308\u0903"], &["\u1100\u0308", "\u0903"]), ("\u1160\u0903",
|
||
&["\u1160\u0903"], &["\u1160", "\u0903"]), ("\u1160\u0308\u0903",
|
||
&["\u1160\u0308\u0903"], &["\u1160\u0308", "\u0903"]), ("\u11A8\u0903",
|
||
&["\u11A8\u0903"], &["\u11A8", "\u0903"]), ("\u11A8\u0308\u0903",
|
||
&["\u11A8\u0308\u0903"], &["\u11A8\u0308", "\u0903"]), ("\uAC00\u0903",
|
||
&["\uAC00\u0903"], &["\uAC00", "\u0903"]), ("\uAC00\u0308\u0903",
|
||
&["\uAC00\u0308\u0903"], &["\uAC00\u0308", "\u0903"]), ("\uAC01\u0903",
|
||
&["\uAC01\u0903"], &["\uAC01", "\u0903"]), ("\uAC01\u0308\u0903",
|
||
&["\uAC01\u0308\u0903"], &["\uAC01\u0308", "\u0903"]), ("\U0001F1E6\u0903",
|
||
&["\U0001F1E6\u0903"], &["\U0001F1E6", "\u0903"]), ("\U0001F1E6\u0308\u0903",
|
||
&["\U0001F1E6\u0308\u0903"], &["\U0001F1E6\u0308", "\u0903"]), ("\u0378\u0903",
|
||
&["\u0378\u0903"], &["\u0378", "\u0903"]), ("\u0378\u0308\u0903",
|
||
&["\u0378\u0308\u0903"], &["\u0378\u0308", "\u0903"]),
|
||
];
|
||
|
||
for &(s, g) in test_same.iter() {
|
||
// test forward iterator
|
||
assert!(order::equals(s.graphemes(true), g.iter().map(|&x| x)));
|
||
assert!(order::equals(s.graphemes(false), g.iter().map(|&x| x)));
|
||
|
||
// test reverse iterator
|
||
assert!(order::equals(s.graphemes(true).rev(), g.iter().rev().map(|&x| x)));
|
||
assert!(order::equals(s.graphemes(false).rev(), g.iter().rev().map(|&x| x)));
|
||
}
|
||
|
||
for &(s, gt, gf) in test_diff.iter() {
|
||
// test forward iterator
|
||
assert!(order::equals(s.graphemes(true), gt.iter().map(|&x| x)));
|
||
assert!(order::equals(s.graphemes(false), gf.iter().map(|&x| x)));
|
||
|
||
// test reverse iterator
|
||
assert!(order::equals(s.graphemes(true).rev(), gt.iter().rev().map(|&x| x)));
|
||
assert!(order::equals(s.graphemes(false).rev(), gf.iter().rev().map(|&x| x)));
|
||
}
|
||
|
||
// test the indices iterators
|
||
let s = "a̐éö̲\r\n";
|
||
let gr_inds = s.grapheme_indices(true).collect::<Vec<(uint, &str)>>();
|
||
assert_eq!(gr_inds.as_slice(), &[(0u, "a̐"), (3, "é"), (6, "ö̲"), (11, "\r\n")]);
|
||
let gr_inds = s.grapheme_indices(true).rev().collect::<Vec<(uint, &str)>>();
|
||
assert_eq!(gr_inds.as_slice(), &[(11, "\r\n"), (6, "ö̲"), (3, "é"), (0u, "a̐")]);
|
||
let mut gr_inds = s.grapheme_indices(true);
|
||
let e1 = gr_inds.size_hint();
|
||
assert_eq!(e1, (1, Some(13)));
|
||
let c = gr_inds.count();
|
||
assert_eq!(c, 4);
|
||
let e2 = gr_inds.size_hint();
|
||
assert_eq!(e2, (0, Some(0)));
|
||
|
||
// make sure the reverse iterator does the right thing with "\n" at beginning of string
|
||
let s = "\n\r\n\r";
|
||
let gr = s.graphemes(true).rev().collect::<Vec<&str>>();
|
||
assert_eq!(gr.as_slice(), &["\r", "\r\n", "\n"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_split_strator() {
|
||
fn t(s: &str, sep: &str, u: &[&str]) {
|
||
let v: Vec<&str> = s.split_str(sep).collect();
|
||
assert_eq!(v.as_slice(), u.as_slice());
|
||
}
|
||
t("--1233345--", "12345", ["--1233345--"]);
|
||
t("abc::hello::there", "::", ["abc", "hello", "there"]);
|
||
t("::hello::there", "::", ["", "hello", "there"]);
|
||
t("hello::there::", "::", ["hello", "there", ""]);
|
||
t("::hello::there::", "::", ["", "hello", "there", ""]);
|
||
t("ประเทศไทย中华Việt Nam", "中华", ["ประเทศไทย", "Việt Nam"]);
|
||
t("zzXXXzzYYYzz", "zz", ["", "XXX", "YYY", ""]);
|
||
t("zzXXXzYYYz", "XXX", ["zz", "zYYYz"]);
|
||
t(".XXX.YYY.", ".", ["", "XXX", "YYY", ""]);
|
||
t("", ".", [""]);
|
||
t("zz", "zz", ["",""]);
|
||
t("ok", "z", ["ok"]);
|
||
t("zzz", "zz", ["","z"]);
|
||
t("zzzzz", "zz", ["","","z"]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_str_default() {
|
||
use std::default::Default;
|
||
fn t<S: Default + Str>() {
|
||
let s: S = Default::default();
|
||
assert_eq!(s.as_slice(), "");
|
||
}
|
||
|
||
t::<&str>();
|
||
t::<String>();
|
||
}
|
||
|
||
#[test]
|
||
fn test_str_container() {
|
||
fn sum_len<S: Collection>(v: &[S]) -> uint {
|
||
v.iter().map(|x| x.len()).sum()
|
||
}
|
||
|
||
let s = String::from_str("01234");
|
||
assert_eq!(5, sum_len(["012", "", "34"]));
|
||
assert_eq!(5, sum_len([String::from_str("01"), String::from_str("2"),
|
||
String::from_str("34"), String::from_str("")]));
|
||
assert_eq!(5, sum_len([s.as_slice()]));
|
||
}
|
||
|
||
#[test]
|
||
fn test_str_from_utf8() {
|
||
let xs = b"hello";
|
||
assert_eq!(from_utf8(xs), Some("hello"));
|
||
|
||
let xs = "ศไทย中华Việt Nam".as_bytes();
|
||
assert_eq!(from_utf8(xs), Some("ศไทย中华Việt Nam"));
|
||
|
||
let xs = b"hello\xFF";
|
||
assert_eq!(from_utf8(xs), None);
|
||
}
|
||
|
||
#[test]
|
||
fn test_maybe_owned_traits() {
|
||
let s = Slice("abcde");
|
||
assert_eq!(s.len(), 5);
|
||
assert_eq!(s.as_slice(), "abcde");
|
||
assert_eq!(String::from_str(s.as_slice()).as_slice(), "abcde");
|
||
assert_eq!(format!("{}", s).as_slice(), "abcde");
|
||
assert!(s.lt(&Owned(String::from_str("bcdef"))));
|
||
assert_eq!(Slice(""), Default::default());
|
||
|
||
let o = Owned(String::from_str("abcde"));
|
||
assert_eq!(o.len(), 5);
|
||
assert_eq!(o.as_slice(), "abcde");
|
||
assert_eq!(String::from_str(o.as_slice()).as_slice(), "abcde");
|
||
assert_eq!(format!("{}", o).as_slice(), "abcde");
|
||
assert!(o.lt(&Slice("bcdef")));
|
||
assert_eq!(Owned(String::from_str("")), Default::default());
|
||
|
||
assert!(s.cmp(&o) == Equal);
|
||
assert!(s.equiv(&o));
|
||
|
||
assert!(o.cmp(&s) == Equal);
|
||
assert!(o.equiv(&s));
|
||
}
|
||
|
||
#[test]
|
||
fn test_maybe_owned_methods() {
|
||
let s = Slice("abcde");
|
||
assert!(s.is_slice());
|
||
assert!(!s.is_owned());
|
||
|
||
let o = Owned(String::from_str("abcde"));
|
||
assert!(!o.is_slice());
|
||
assert!(o.is_owned());
|
||
}
|
||
|
||
#[test]
|
||
fn test_maybe_owned_clone() {
|
||
assert_eq!(Owned(String::from_str("abcde")), Slice("abcde").clone());
|
||
assert_eq!(Owned(String::from_str("abcde")), Owned(String::from_str("abcde")).clone());
|
||
assert_eq!(Slice("abcde"), Slice("abcde").clone());
|
||
assert_eq!(Slice("abcde"), Owned(String::from_str("abcde")).clone());
|
||
}
|
||
|
||
#[test]
|
||
fn test_maybe_owned_into_string() {
|
||
assert_eq!(Slice("abcde").into_string(), String::from_str("abcde"));
|
||
assert_eq!(Owned(String::from_str("abcde")).into_string(),
|
||
String::from_str("abcde"));
|
||
}
|
||
|
||
#[test]
|
||
fn test_into_maybe_owned() {
|
||
assert_eq!("abcde".into_maybe_owned(), Slice("abcde"));
|
||
assert_eq!((String::from_str("abcde")).into_maybe_owned(), Slice("abcde"));
|
||
assert_eq!("abcde".into_maybe_owned(), Owned(String::from_str("abcde")));
|
||
assert_eq!((String::from_str("abcde")).into_maybe_owned(),
|
||
Owned(String::from_str("abcde")));
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod bench {
|
||
use test::Bencher;
|
||
use test::black_box;
|
||
use super::*;
|
||
use std::option::{None, Some};
|
||
use std::iter::{Iterator, DoubleEndedIterator};
|
||
use std::collections::Collection;
|
||
|
||
#[bench]
|
||
fn char_iterator(b: &mut Bencher) {
|
||
let s = "ศไทย中华Việt Nam; Mary had a little lamb, Little lamb";
|
||
|
||
b.iter(|| s.chars().count());
|
||
}
|
||
|
||
#[bench]
|
||
fn char_iterator_for(b: &mut Bencher) {
|
||
let s = "ศไทย中华Việt Nam; Mary had a little lamb, Little lamb";
|
||
|
||
b.iter(|| {
|
||
for ch in s.chars() { black_box(ch) }
|
||
});
|
||
}
|
||
|
||
#[bench]
|
||
fn char_iterator_ascii(b: &mut Bencher) {
|
||
let s = "Mary had a little lamb, Little lamb
|
||
Mary had a little lamb, Little lamb
|
||
Mary had a little lamb, Little lamb
|
||
Mary had a little lamb, Little lamb
|
||
Mary had a little lamb, Little lamb
|
||
Mary had a little lamb, Little lamb";
|
||
|
||
b.iter(|| s.chars().count());
|
||
}
|
||
|
||
#[bench]
|
||
fn char_iterator_rev(b: &mut Bencher) {
|
||
let s = "ศไทย中华Việt Nam; Mary had a little lamb, Little lamb";
|
||
|
||
b.iter(|| s.chars().rev().count());
|
||
}
|
||
|
||
#[bench]
|
||
fn char_iterator_rev_for(b: &mut Bencher) {
|
||
let s = "ศไทย中华Việt Nam; Mary had a little lamb, Little lamb";
|
||
|
||
b.iter(|| {
|
||
for ch in s.chars().rev() { black_box(ch) }
|
||
});
|
||
}
|
||
|
||
#[bench]
|
||
fn char_indicesator(b: &mut Bencher) {
|
||
let s = "ศไทย中华Việt Nam; Mary had a little lamb, Little lamb";
|
||
let len = s.char_len();
|
||
|
||
b.iter(|| assert_eq!(s.char_indices().count(), len));
|
||
}
|
||
|
||
#[bench]
|
||
fn char_indicesator_rev(b: &mut Bencher) {
|
||
let s = "ศไทย中华Việt Nam; Mary had a little lamb, Little lamb";
|
||
let len = s.char_len();
|
||
|
||
b.iter(|| assert_eq!(s.char_indices().rev().count(), len));
|
||
}
|
||
|
||
#[bench]
|
||
fn split_unicode_ascii(b: &mut Bencher) {
|
||
let s = "ประเทศไทย中华Việt Namประเทศไทย中华Việt Nam";
|
||
|
||
b.iter(|| assert_eq!(s.split('V').count(), 3));
|
||
}
|
||
|
||
#[bench]
|
||
fn split_unicode_not_ascii(b: &mut Bencher) {
|
||
struct NotAscii(char);
|
||
impl CharEq for NotAscii {
|
||
fn matches(&mut self, c: char) -> bool {
|
||
let NotAscii(cc) = *self;
|
||
cc == c
|
||
}
|
||
fn only_ascii(&self) -> bool { false }
|
||
}
|
||
let s = "ประเทศไทย中华Việt Namประเทศไทย中华Việt Nam";
|
||
|
||
b.iter(|| assert_eq!(s.split(NotAscii('V')).count(), 3));
|
||
}
|
||
|
||
|
||
#[bench]
|
||
fn split_ascii(b: &mut Bencher) {
|
||
let s = "Mary had a little lamb, Little lamb, little-lamb.";
|
||
let len = s.split(' ').count();
|
||
|
||
b.iter(|| assert_eq!(s.split(' ').count(), len));
|
||
}
|
||
|
||
#[bench]
|
||
fn split_not_ascii(b: &mut Bencher) {
|
||
struct NotAscii(char);
|
||
impl CharEq for NotAscii {
|
||
#[inline]
|
||
fn matches(&mut self, c: char) -> bool {
|
||
let NotAscii(cc) = *self;
|
||
cc == c
|
||
}
|
||
fn only_ascii(&self) -> bool { false }
|
||
}
|
||
let s = "Mary had a little lamb, Little lamb, little-lamb.";
|
||
let len = s.split(' ').count();
|
||
|
||
b.iter(|| assert_eq!(s.split(NotAscii(' ')).count(), len));
|
||
}
|
||
|
||
#[bench]
|
||
fn split_extern_fn(b: &mut Bencher) {
|
||
let s = "Mary had a little lamb, Little lamb, little-lamb.";
|
||
let len = s.split(' ').count();
|
||
fn pred(c: char) -> bool { c == ' ' }
|
||
|
||
b.iter(|| assert_eq!(s.split(pred).count(), len));
|
||
}
|
||
|
||
#[bench]
|
||
fn split_closure(b: &mut Bencher) {
|
||
let s = "Mary had a little lamb, Little lamb, little-lamb.";
|
||
let len = s.split(' ').count();
|
||
|
||
b.iter(|| assert_eq!(s.split(|c: char| c == ' ').count(), len));
|
||
}
|
||
|
||
#[bench]
|
||
fn split_slice(b: &mut Bencher) {
|
||
let s = "Mary had a little lamb, Little lamb, little-lamb.";
|
||
let len = s.split(' ').count();
|
||
|
||
b.iter(|| assert_eq!(s.split(&[' ']).count(), len));
|
||
}
|
||
|
||
#[bench]
|
||
fn is_utf8_100_ascii(b: &mut Bencher) {
|
||
|
||
let s = b"Hello there, the quick brown fox jumped over the lazy dog! \
|
||
Lorem ipsum dolor sit amet, consectetur. ";
|
||
|
||
assert_eq!(100, s.len());
|
||
b.iter(|| {
|
||
is_utf8(s)
|
||
});
|
||
}
|
||
|
||
#[bench]
|
||
fn is_utf8_100_multibyte(b: &mut Bencher) {
|
||
let s = "𐌀𐌖𐌋𐌄𐌑𐌉ปรدولة الكويتทศไทย中华𐍅𐌿𐌻𐍆𐌹𐌻𐌰".as_bytes();
|
||
assert_eq!(100, s.len());
|
||
b.iter(|| {
|
||
is_utf8(s)
|
||
});
|
||
}
|
||
|
||
#[bench]
|
||
fn bench_connect(b: &mut Bencher) {
|
||
let s = "ศไทย中华Việt Nam; Mary had a little lamb, Little lamb";
|
||
let sep = "→";
|
||
let v = [s, s, s, s, s, s, s, s, s, s];
|
||
b.iter(|| {
|
||
assert_eq!(v.connect(sep).len(), s.len() * 10 + sep.len() * 9);
|
||
})
|
||
}
|
||
|
||
#[bench]
|
||
fn bench_contains_short_short(b: &mut Bencher) {
|
||
let haystack = "Lorem ipsum dolor sit amet, consectetur adipiscing elit.";
|
||
let needle = "sit";
|
||
|
||
b.iter(|| {
|
||
assert!(haystack.contains(needle));
|
||
})
|
||
}
|
||
|
||
#[bench]
|
||
fn bench_contains_short_long(b: &mut Bencher) {
|
||
let haystack = "\
|
||
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse quis lorem sit amet dolor \
|
||
ultricies condimentum. Praesent iaculis purus elit, ac malesuada quam malesuada in. Duis sed orci \
|
||
eros. Suspendisse sit amet magna mollis, mollis nunc luctus, imperdiet mi. Integer fringilla non \
|
||
sem ut lacinia. Fusce varius tortor a risus porttitor hendrerit. Morbi mauris dui, ultricies nec \
|
||
tempus vel, gravida nec quam.
|
||
|
||
In est dui, tincidunt sed tempus interdum, adipiscing laoreet ante. Etiam tempor, tellus quis \
|
||
sagittis interdum, nulla purus mattis sem, quis auctor erat odio ac tellus. In nec nunc sit amet \
|
||
diam volutpat molestie at sed ipsum. Vestibulum laoreet consequat vulputate. Integer accumsan \
|
||
lorem ac dignissim placerat. Suspendisse convallis faucibus lorem. Aliquam erat volutpat. In vel \
|
||
eleifend felis. Sed suscipit nulla lorem, sed mollis est sollicitudin et. Nam fermentum egestas \
|
||
interdum. Curabitur ut nisi justo.
|
||
|
||
Sed sollicitudin ipsum tellus, ut condimentum leo eleifend nec. Cras ut velit ante. Phasellus nec \
|
||
mollis odio. Mauris molestie erat in arcu mattis, at aliquet dolor vehicula. Quisque malesuada \
|
||
lectus sit amet nisi pretium, a condimentum ipsum porta. Morbi at dapibus diam. Praesent egestas \
|
||
est sed risus elementum, eu rutrum metus ultrices. Etiam fermentum consectetur magna, id rutrum \
|
||
felis accumsan a. Aliquam ut pellentesque libero. Sed mi nulla, lobortis eu tortor id, suscipit \
|
||
ultricies neque. Morbi iaculis sit amet risus at iaculis. Praesent eget ligula quis turpis \
|
||
feugiat suscipit vel non arcu. Interdum et malesuada fames ac ante ipsum primis in faucibus. \
|
||
Aliquam sit amet placerat lorem.
|
||
|
||
Cras a lacus vel ante posuere elementum. Nunc est leo, bibendum ut facilisis vel, bibendum at \
|
||
mauris. Nullam adipiscing diam vel odio ornare, luctus adipiscing mi luctus. Nulla facilisi. \
|
||
Mauris adipiscing bibendum neque, quis adipiscing lectus tempus et. Sed feugiat erat et nisl \
|
||
lobortis pharetra. Donec vitae erat enim. Nullam sit amet felis et quam lacinia tincidunt. Aliquam \
|
||
suscipit dapibus urna. Sed volutpat urna in magna pulvinar volutpat. Phasellus nec tellus ac diam \
|
||
cursus accumsan.
|
||
|
||
Nam lectus enim, dapibus non nisi tempor, consectetur convallis massa. Maecenas eleifend dictum \
|
||
feugiat. Etiam quis mauris vel risus luctus mattis a a nunc. Nullam orci quam, imperdiet id \
|
||
vehicula in, porttitor ut nibh. Duis sagittis adipiscing nisl vitae congue. Donec mollis risus eu \
|
||
leo suscipit, varius porttitor nulla porta. Pellentesque ut sem nec nisi euismod vehicula. Nulla \
|
||
malesuada sollicitudin quam eu fermentum.";
|
||
let needle = "english";
|
||
|
||
b.iter(|| {
|
||
assert!(!haystack.contains(needle));
|
||
})
|
||
}
|
||
|
||
#[bench]
|
||
fn bench_contains_bad_naive(b: &mut Bencher) {
|
||
let haystack = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
|
||
let needle = "aaaaaaaab";
|
||
|
||
b.iter(|| {
|
||
assert!(!haystack.contains(needle));
|
||
})
|
||
}
|
||
|
||
#[bench]
|
||
fn bench_contains_equal(b: &mut Bencher) {
|
||
let haystack = "Lorem ipsum dolor sit amet, consectetur adipiscing elit.";
|
||
let needle = "Lorem ipsum dolor sit amet, consectetur adipiscing elit.";
|
||
|
||
b.iter(|| {
|
||
assert!(haystack.contains(needle));
|
||
})
|
||
}
|
||
}
|