724 lines
22 KiB
Rust
724 lines
22 KiB
Rust
// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Operations on ASCII strings and characters
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use to_str::{IntoStr};
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use str;
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use str::Str;
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use str::StrSlice;
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use str::OwnedStr;
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use container::Container;
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use cast;
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use fmt;
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use iter::Iterator;
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use vec::{ImmutableVector, MutableVector, Vector};
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use vec_ng::Vec;
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use option::{Option, Some, None};
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/// Datatype to hold one ascii character. It wraps a `u8`, with the highest bit always zero.
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#[deriving(Clone, Eq, Ord, TotalOrd, TotalEq, Hash)]
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pub struct Ascii { priv chr: u8 }
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impl Ascii {
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/// Converts an ascii character into a `u8`.
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#[inline]
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pub fn to_byte(self) -> u8 {
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self.chr
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}
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/// Converts an ascii character into a `char`.
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#[inline]
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pub fn to_char(self) -> char {
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self.chr as char
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}
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/// Convert to lowercase.
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#[inline]
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pub fn to_lower(self) -> Ascii {
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Ascii{chr: ASCII_LOWER_MAP[self.chr]}
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}
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/// Convert to uppercase.
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#[inline]
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pub fn to_upper(self) -> Ascii {
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Ascii{chr: ASCII_UPPER_MAP[self.chr]}
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}
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/// Compares two ascii characters of equality, ignoring case.
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#[inline]
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pub fn eq_ignore_case(self, other: Ascii) -> bool {
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ASCII_LOWER_MAP[self.chr] == ASCII_LOWER_MAP[other.chr]
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}
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// the following methods are like ctype, and the implementation is inspired by musl
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/// Check if the character is a letter (a-z, A-Z)
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#[inline]
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pub fn is_alpha(&self) -> bool {
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(self.chr >= 0x41 && self.chr <= 0x5A) || (self.chr >= 0x61 && self.chr <= 0x7A)
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}
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/// Check if the character is a number (0-9)
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#[inline]
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pub fn is_digit(&self) -> bool {
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self.chr >= 0x30 && self.chr <= 0x39
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}
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/// Check if the character is a letter or number
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#[inline]
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pub fn is_alnum(&self) -> bool {
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self.is_alpha() || self.is_digit()
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}
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/// Check if the character is a space or horizontal tab
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#[inline]
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pub fn is_blank(&self) -> bool {
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self.chr == ' ' as u8 || self.chr == '\t' as u8
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}
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/// Check if the character is a control character
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#[inline]
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pub fn is_control(&self) -> bool {
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self.chr < 0x20 || self.chr == 0x7F
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}
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/// Checks if the character is printable (except space)
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#[inline]
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pub fn is_graph(&self) -> bool {
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(self.chr - 0x21) < 0x5E
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}
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/// Checks if the character is printable (including space)
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#[inline]
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pub fn is_print(&self) -> bool {
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(self.chr - 0x20) < 0x5F
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}
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/// Checks if the character is lowercase
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#[inline]
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pub fn is_lower(&self) -> bool {
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(self.chr - 'a' as u8) < 26
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}
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/// Checks if the character is uppercase
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#[inline]
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pub fn is_upper(&self) -> bool {
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(self.chr - 'A' as u8) < 26
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}
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/// Checks if the character is punctuation
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#[inline]
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pub fn is_punctuation(&self) -> bool {
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self.is_graph() && !self.is_alnum()
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}
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/// Checks if the character is a valid hex digit
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#[inline]
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pub fn is_hex(&self) -> bool {
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self.is_digit() || ((self.chr | 32u8) - 'a' as u8) < 6
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}
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}
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impl<'a> fmt::Show for Ascii {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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(self.chr as char).fmt(f)
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}
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}
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/// Trait for converting into an ascii type.
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pub trait AsciiCast<T> {
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/// Convert to an ascii type, fail on non-ASCII input.
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#[inline]
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fn to_ascii(&self) -> T {
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assert!(self.is_ascii());
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unsafe {self.to_ascii_nocheck()}
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}
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/// Convert to an ascii type, return None on non-ASCII input.
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#[inline]
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fn to_ascii_opt(&self) -> Option<T> {
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if self.is_ascii() {
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Some(unsafe { self.to_ascii_nocheck() })
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} else {
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None
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}
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}
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/// Convert to an ascii type, not doing any range asserts
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unsafe fn to_ascii_nocheck(&self) -> T;
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/// Check if convertible to ascii
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fn is_ascii(&self) -> bool;
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}
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impl<'a> AsciiCast<&'a[Ascii]> for &'a [u8] {
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#[inline]
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unsafe fn to_ascii_nocheck(&self) -> &'a[Ascii] {
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cast::transmute(*self)
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}
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#[inline]
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fn is_ascii(&self) -> bool {
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for b in self.iter() {
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if !b.is_ascii() { return false; }
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}
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true
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}
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}
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impl<'a> AsciiCast<&'a [Ascii]> for &'a str {
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#[inline]
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unsafe fn to_ascii_nocheck(&self) -> &'a [Ascii] {
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cast::transmute(*self)
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}
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#[inline]
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fn is_ascii(&self) -> bool {
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self.bytes().all(|b| b.is_ascii())
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}
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}
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impl AsciiCast<Ascii> for u8 {
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#[inline]
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unsafe fn to_ascii_nocheck(&self) -> Ascii {
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Ascii{ chr: *self }
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}
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#[inline]
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fn is_ascii(&self) -> bool {
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*self & 128 == 0u8
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}
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}
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impl AsciiCast<Ascii> for char {
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#[inline]
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unsafe fn to_ascii_nocheck(&self) -> Ascii {
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Ascii{ chr: *self as u8 }
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}
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#[inline]
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fn is_ascii(&self) -> bool {
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*self as u32 - ('\x7F' as u32 & *self as u32) == 0
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}
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}
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/// Trait for copyless casting to an ascii vector.
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pub trait OwnedAsciiCast {
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/// Check if convertible to ascii
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fn is_ascii(&self) -> bool;
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/// Take ownership and cast to an ascii vector. Fail on non-ASCII input.
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#[inline]
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fn into_ascii(self) -> ~[Ascii] {
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assert!(self.is_ascii());
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unsafe {self.into_ascii_nocheck()}
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}
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/// Take ownership and cast to an ascii vector. Return None on non-ASCII input.
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#[inline]
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fn into_ascii_opt(self) -> Option<~[Ascii]> {
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if self.is_ascii() {
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Some(unsafe { self.into_ascii_nocheck() })
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} else {
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None
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}
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}
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/// Take ownership and cast to an ascii vector.
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/// Does not perform validation checks.
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unsafe fn into_ascii_nocheck(self) -> ~[Ascii];
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}
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impl OwnedAsciiCast for ~[u8] {
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#[inline]
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fn is_ascii(&self) -> bool {
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self.as_slice().is_ascii()
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}
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#[inline]
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unsafe fn into_ascii_nocheck(self) -> ~[Ascii] {
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cast::transmute(self)
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}
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}
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impl OwnedAsciiCast for ~str {
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#[inline]
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fn is_ascii(&self) -> bool {
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self.as_slice().is_ascii()
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}
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#[inline]
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unsafe fn into_ascii_nocheck(self) -> ~[Ascii] {
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cast::transmute(self)
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}
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}
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/// Trait for converting an ascii type to a string. Needed to convert
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/// `&[Ascii]` to `&str`.
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pub trait AsciiStr {
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/// Convert to a string.
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fn as_str_ascii<'a>(&'a self) -> &'a str;
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/// Convert to vector representing a lower cased ascii string.
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fn to_lower(&self) -> ~[Ascii];
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/// Convert to vector representing a upper cased ascii string.
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fn to_upper(&self) -> ~[Ascii];
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/// Compares two Ascii strings ignoring case.
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fn eq_ignore_case(self, other: &[Ascii]) -> bool;
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}
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impl<'a> AsciiStr for &'a [Ascii] {
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#[inline]
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fn as_str_ascii<'a>(&'a self) -> &'a str {
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unsafe { cast::transmute(*self) }
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}
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#[inline]
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fn to_lower(&self) -> ~[Ascii] {
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self.map(|a| a.to_lower())
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}
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#[inline]
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fn to_upper(&self) -> ~[Ascii] {
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self.map(|a| a.to_upper())
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}
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#[inline]
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fn eq_ignore_case(self, other: &[Ascii]) -> bool {
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self.iter().zip(other.iter()).all(|(&a, &b)| a.eq_ignore_case(b))
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}
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}
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impl IntoStr for ~[Ascii] {
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#[inline]
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fn into_str(self) -> ~str {
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unsafe { cast::transmute(self) }
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}
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}
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impl IntoStr for Vec<Ascii> {
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#[inline]
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fn into_str(self) -> ~str {
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let v: ~[Ascii] = self.move_iter().collect();
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unsafe { cast::transmute(v) }
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}
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}
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/// Trait to convert to an owned byte array by consuming self
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pub trait IntoBytes {
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/// Converts to an owned byte array by consuming self
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fn into_bytes(self) -> ~[u8];
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}
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impl IntoBytes for ~[Ascii] {
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fn into_bytes(self) -> ~[u8] {
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unsafe { cast::transmute(self) }
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}
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}
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/// Extension methods for ASCII-subset only operations on owned strings
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pub trait OwnedStrAsciiExt {
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/// Convert the string to ASCII upper case:
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/// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z',
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/// but non-ASCII letters are unchanged.
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fn into_ascii_upper(self) -> ~str;
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/// Convert the string to ASCII lower case:
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/// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z',
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/// but non-ASCII letters are unchanged.
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fn into_ascii_lower(self) -> ~str;
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}
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/// Extension methods for ASCII-subset only operations on string slices
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pub trait StrAsciiExt {
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/// Makes a copy of the string in ASCII upper case:
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/// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z',
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/// but non-ASCII letters are unchanged.
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fn to_ascii_upper(&self) -> ~str;
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/// Makes a copy of the string in ASCII lower case:
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/// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z',
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/// but non-ASCII letters are unchanged.
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fn to_ascii_lower(&self) -> ~str;
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/// Check that two strings are an ASCII case-insensitive match.
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/// Same as `to_ascii_lower(a) == to_ascii_lower(b)`,
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/// but without allocating and copying temporary strings.
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fn eq_ignore_ascii_case(&self, other: &str) -> bool;
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}
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impl<'a> StrAsciiExt for &'a str {
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#[inline]
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fn to_ascii_upper(&self) -> ~str {
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unsafe { str_copy_map_bytes(*self, ASCII_UPPER_MAP) }
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}
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#[inline]
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fn to_ascii_lower(&self) -> ~str {
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unsafe { str_copy_map_bytes(*self, ASCII_LOWER_MAP) }
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}
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#[inline]
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fn eq_ignore_ascii_case(&self, other: &str) -> bool {
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self.len() == other.len() && self.as_bytes().iter().zip(other.as_bytes().iter()).all(
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|(byte_self, byte_other)| ASCII_LOWER_MAP[*byte_self] == ASCII_LOWER_MAP[*byte_other])
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}
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}
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impl OwnedStrAsciiExt for ~str {
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#[inline]
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fn into_ascii_upper(self) -> ~str {
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unsafe { str_map_bytes(self, ASCII_UPPER_MAP) }
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}
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#[inline]
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fn into_ascii_lower(self) -> ~str {
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unsafe { str_map_bytes(self, ASCII_LOWER_MAP) }
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}
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}
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#[inline]
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unsafe fn str_map_bytes(string: ~str, map: &'static [u8]) -> ~str {
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let mut bytes = string.into_bytes();
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for b in bytes.mut_iter() {
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*b = map[*b];
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}
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str::raw::from_utf8_owned(bytes)
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}
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#[inline]
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unsafe fn str_copy_map_bytes(string: &str, map: &'static [u8]) -> ~str {
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let bytes = string.bytes().map(|b| map[b]).to_owned_vec();
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str::raw::from_utf8_owned(bytes)
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}
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static ASCII_LOWER_MAP: &'static [u8] = &[
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
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0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
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0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
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0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
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0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
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0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
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0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
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0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
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0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
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0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
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0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
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0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
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0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
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0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
|
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0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
|
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0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
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0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
|
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0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
|
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0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
|
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0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
|
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0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
|
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0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
|
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0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
|
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0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
|
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];
|
||
|
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static ASCII_UPPER_MAP: &'static [u8] = &[
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
|
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
|
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0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
|
||
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
||
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
|
||
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
||
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
|
||
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
|
||
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
|
||
0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
|
||
0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
|
||
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
|
||
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
|
||
0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
|
||
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
|
||
0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
|
||
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
|
||
0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
|
||
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
|
||
0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
|
||
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
|
||
0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
|
||
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
|
||
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
|
||
0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
|
||
0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
|
||
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
|
||
0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
|
||
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
|
||
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
|
||
];
|
||
|
||
|
||
#[cfg(test)]
|
||
mod tests {
|
||
use prelude::*;
|
||
use super::*;
|
||
use str::from_char;
|
||
use char::from_u32;
|
||
use vec_ng::Vec;
|
||
|
||
macro_rules! v2ascii (
|
||
( [$($e:expr),*]) => (&[$(Ascii{chr:$e}),*]);
|
||
(&[$($e:expr),*]) => (&[$(Ascii{chr:$e}),*]);
|
||
(~[$($e:expr),*]) => (~[$(Ascii{chr:$e}),*]);
|
||
)
|
||
|
||
macro_rules! vec2ascii (
|
||
($($e:expr),*) => (Vec::from_slice([$(Ascii{chr:$e}),*]));
|
||
)
|
||
|
||
#[test]
|
||
fn test_ascii() {
|
||
assert_eq!(65u8.to_ascii().to_byte(), 65u8);
|
||
assert_eq!(65u8.to_ascii().to_char(), 'A');
|
||
assert_eq!('A'.to_ascii().to_char(), 'A');
|
||
assert_eq!('A'.to_ascii().to_byte(), 65u8);
|
||
|
||
assert_eq!('A'.to_ascii().to_lower().to_char(), 'a');
|
||
assert_eq!('Z'.to_ascii().to_lower().to_char(), 'z');
|
||
assert_eq!('a'.to_ascii().to_upper().to_char(), 'A');
|
||
assert_eq!('z'.to_ascii().to_upper().to_char(), 'Z');
|
||
|
||
assert_eq!('@'.to_ascii().to_lower().to_char(), '@');
|
||
assert_eq!('['.to_ascii().to_lower().to_char(), '[');
|
||
assert_eq!('`'.to_ascii().to_upper().to_char(), '`');
|
||
assert_eq!('{'.to_ascii().to_upper().to_char(), '{');
|
||
|
||
assert!('0'.to_ascii().is_digit());
|
||
assert!('9'.to_ascii().is_digit());
|
||
assert!(!'/'.to_ascii().is_digit());
|
||
assert!(!':'.to_ascii().is_digit());
|
||
|
||
assert!((0x1fu8).to_ascii().is_control());
|
||
assert!(!' '.to_ascii().is_control());
|
||
assert!((0x7fu8).to_ascii().is_control());
|
||
|
||
assert!("banana".chars().all(|c| c.is_ascii()));
|
||
assert!(!"ประเทศไทย中华Việt Nam".chars().all(|c| c.is_ascii()));
|
||
}
|
||
|
||
#[test]
|
||
fn test_ascii_vec() {
|
||
let test = &[40u8, 32u8, 59u8];
|
||
assert_eq!(test.to_ascii(), v2ascii!([40, 32, 59]));
|
||
assert_eq!("( ;".to_ascii(), v2ascii!([40, 32, 59]));
|
||
// FIXME: #5475 borrowchk error, owned vectors do not live long enough
|
||
// if chained-from directly
|
||
let v = ~[40u8, 32u8, 59u8]; assert_eq!(v.to_ascii(), v2ascii!([40, 32, 59]));
|
||
let v = ~"( ;"; assert_eq!(v.to_ascii(), v2ascii!([40, 32, 59]));
|
||
|
||
assert_eq!("abCDef&?#".to_ascii().to_lower().into_str(), ~"abcdef&?#");
|
||
assert_eq!("abCDef&?#".to_ascii().to_upper().into_str(), ~"ABCDEF&?#");
|
||
|
||
assert_eq!("".to_ascii().to_lower().into_str(), ~"");
|
||
assert_eq!("YMCA".to_ascii().to_lower().into_str(), ~"ymca");
|
||
assert_eq!("abcDEFxyz:.;".to_ascii().to_upper().into_str(), ~"ABCDEFXYZ:.;");
|
||
|
||
assert!("aBcDeF&?#".to_ascii().eq_ignore_case("AbCdEf&?#".to_ascii()));
|
||
|
||
assert!("".is_ascii());
|
||
assert!("a".is_ascii());
|
||
assert!(!"\u2009".is_ascii());
|
||
|
||
}
|
||
|
||
#[test]
|
||
fn test_ascii_vec_ng() {
|
||
assert_eq!(Vec::from_slice("abCDef&?#".to_ascii().to_lower()).into_str(), ~"abcdef&?#");
|
||
assert_eq!(Vec::from_slice("abCDef&?#".to_ascii().to_upper()).into_str(), ~"ABCDEF&?#");
|
||
|
||
assert_eq!(Vec::from_slice("".to_ascii().to_lower()).into_str(), ~"");
|
||
assert_eq!(Vec::from_slice("YMCA".to_ascii().to_lower()).into_str(), ~"ymca");
|
||
assert_eq!(Vec::from_slice("abcDEFxyz:.;".to_ascii().to_upper()).into_str(),
|
||
~"ABCDEFXYZ:.;");
|
||
}
|
||
|
||
#[test]
|
||
fn test_owned_ascii_vec() {
|
||
assert_eq!((~"( ;").into_ascii(), v2ascii!(~[40, 32, 59]));
|
||
assert_eq!((~[40u8, 32u8, 59u8]).into_ascii(), v2ascii!(~[40, 32, 59]));
|
||
}
|
||
|
||
#[test]
|
||
fn test_ascii_as_str() {
|
||
let v = v2ascii!([40, 32, 59]);
|
||
assert_eq!(v.as_str_ascii(), "( ;");
|
||
}
|
||
|
||
#[test]
|
||
fn test_ascii_into_str() {
|
||
assert_eq!(v2ascii!(~[40, 32, 59]).into_str(), ~"( ;");
|
||
assert_eq!(vec2ascii!(40, 32, 59).into_str(), ~"( ;");
|
||
}
|
||
|
||
#[test]
|
||
fn test_ascii_to_bytes() {
|
||
assert_eq!(v2ascii!(~[40, 32, 59]).into_bytes(), ~[40u8, 32u8, 59u8]);
|
||
}
|
||
|
||
#[test] #[should_fail]
|
||
fn test_ascii_vec_fail_u8_slice() { (&[127u8, 128u8, 255u8]).to_ascii(); }
|
||
|
||
#[test] #[should_fail]
|
||
fn test_ascii_vec_fail_str_slice() { "zoä华".to_ascii(); }
|
||
|
||
#[test] #[should_fail]
|
||
fn test_ascii_fail_u8_slice() { 255u8.to_ascii(); }
|
||
|
||
#[test] #[should_fail]
|
||
fn test_ascii_fail_char_slice() { 'λ'.to_ascii(); }
|
||
|
||
#[test]
|
||
fn test_opt() {
|
||
assert_eq!(65u8.to_ascii_opt(), Some(Ascii { chr: 65u8 }));
|
||
assert_eq!(255u8.to_ascii_opt(), None);
|
||
|
||
assert_eq!('A'.to_ascii_opt(), Some(Ascii { chr: 65u8 }));
|
||
assert_eq!('λ'.to_ascii_opt(), None);
|
||
|
||
assert_eq!("zoä华".to_ascii_opt(), None);
|
||
|
||
let test1 = &[127u8, 128u8, 255u8];
|
||
assert_eq!((test1).to_ascii_opt(), None);
|
||
|
||
let v = [40u8, 32u8, 59u8];
|
||
let v2 = v2ascii!(&[40, 32, 59]);
|
||
assert_eq!(v.to_ascii_opt(), Some(v2));
|
||
let v = [127u8, 128u8, 255u8];
|
||
assert_eq!(v.to_ascii_opt(), None);
|
||
|
||
let v = "( ;";
|
||
let v2 = v2ascii!(&[40, 32, 59]);
|
||
assert_eq!(v.to_ascii_opt(), Some(v2));
|
||
assert_eq!("zoä华".to_ascii_opt(), None);
|
||
|
||
assert_eq!((~[40u8, 32u8, 59u8]).into_ascii_opt(), Some(v2ascii!(~[40, 32, 59])));
|
||
assert_eq!((~[127u8, 128u8, 255u8]).into_ascii_opt(), None);
|
||
|
||
assert_eq!((~"( ;").into_ascii_opt(), Some(v2ascii!(~[40, 32, 59])));
|
||
assert_eq!((~"zoä华").into_ascii_opt(), None);
|
||
}
|
||
|
||
#[test]
|
||
fn test_to_ascii_upper() {
|
||
assert_eq!("url()URL()uRl()ürl".to_ascii_upper(), ~"URL()URL()URL()üRL");
|
||
assert_eq!("hıKß".to_ascii_upper(), ~"HıKß");
|
||
|
||
let mut i = 0;
|
||
while i <= 500 {
|
||
let upper = if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 }
|
||
else { i };
|
||
assert_eq!(from_char(from_u32(i).unwrap()).to_ascii_upper(),
|
||
from_char(from_u32(upper).unwrap()))
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_to_ascii_lower() {
|
||
assert_eq!("url()URL()uRl()Ürl".to_ascii_lower(), ~"url()url()url()Ürl");
|
||
// Dotted capital I, Kelvin sign, Sharp S.
|
||
assert_eq!("HİKß".to_ascii_lower(), ~"hİKß");
|
||
|
||
let mut i = 0;
|
||
while i <= 500 {
|
||
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
|
||
else { i };
|
||
assert_eq!(from_char(from_u32(i).unwrap()).to_ascii_lower(),
|
||
from_char(from_u32(lower).unwrap()))
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_into_ascii_upper() {
|
||
assert_eq!((~"url()URL()uRl()ürl").into_ascii_upper(), ~"URL()URL()URL()üRL");
|
||
assert_eq!((~"hıKß").into_ascii_upper(), ~"HıKß");
|
||
|
||
let mut i = 0;
|
||
while i <= 500 {
|
||
let upper = if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 }
|
||
else { i };
|
||
assert_eq!(from_char(from_u32(i).unwrap()).into_ascii_upper(),
|
||
from_char(from_u32(upper).unwrap()))
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_into_ascii_lower() {
|
||
assert_eq!((~"url()URL()uRl()Ürl").into_ascii_lower(), ~"url()url()url()Ürl");
|
||
// Dotted capital I, Kelvin sign, Sharp S.
|
||
assert_eq!((~"HİKß").into_ascii_lower(), ~"hİKß");
|
||
|
||
let mut i = 0;
|
||
while i <= 500 {
|
||
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
|
||
else { i };
|
||
assert_eq!(from_char(from_u32(i).unwrap()).into_ascii_lower(),
|
||
from_char(from_u32(lower).unwrap()))
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_eq_ignore_ascii_case() {
|
||
assert!("url()URL()uRl()Ürl".eq_ignore_ascii_case("url()url()url()Ürl"));
|
||
assert!(!"Ürl".eq_ignore_ascii_case("ürl"));
|
||
// Dotted capital I, Kelvin sign, Sharp S.
|
||
assert!("HİKß".eq_ignore_ascii_case("hİKß"));
|
||
assert!(!"İ".eq_ignore_ascii_case("i"));
|
||
assert!(!"K".eq_ignore_ascii_case("k"));
|
||
assert!(!"ß".eq_ignore_ascii_case("s"));
|
||
|
||
let mut i = 0;
|
||
while i <= 500 {
|
||
let c = i;
|
||
let lower = if 'A' as u32 <= c && c <= 'Z' as u32 { c + 'a' as u32 - 'A' as u32 }
|
||
else { c };
|
||
assert!(from_char(from_u32(i).unwrap()).
|
||
eq_ignore_ascii_case(from_char(from_u32(lower).unwrap())));
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_to_str() {
|
||
let s = Ascii{ chr: 't' as u8 }.to_str();
|
||
assert_eq!(s, ~"t");
|
||
}
|
||
|
||
#[test]
|
||
fn test_show() {
|
||
let c = Ascii { chr: 't' as u8 };
|
||
assert_eq!(format!("{}", c), ~"t");
|
||
}
|
||
}
|