// Copyright 2013-2014 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. //! Operations on ASCII strings and characters. //! //! Most string operations in Rust act on UTF-8 strings. However, at times it //! makes more sense to only consider the ASCII character set for a specific //! operation. //! //! The [`AsciiExt`] trait provides methods that allow for character //! operations that only act on the ASCII subset and leave non-ASCII characters //! alone. //! //! The [`escape_default`] function provides an iterator over the bytes of an //! escaped version of the character given. //! //! [`AsciiExt`]: trait.AsciiExt.html //! [`escape_default`]: fn.escape_default.html #![stable(feature = "rust1", since = "1.0.0")] use fmt; use ops::Range; use iter::FusedIterator; /// Extension methods for ASCII-subset only operations. /// /// Be aware that operations on seemingly non-ASCII characters can sometimes /// have unexpected results. Consider this example: /// /// ``` /// use std::ascii::AsciiExt; /// /// assert_eq!("café".to_ascii_uppercase(), "CAFÉ"); /// assert_eq!("café".to_ascii_uppercase(), "CAFé"); /// ``` /// /// In the first example, the lowercased string is represented `"cafe\u{301}"` /// (the last character is an acute accent [combining character]). Unlike the /// other characters in the string, the combining character will not get mapped /// to an uppercase variant, resulting in `"CAFE\u{301}"`. In the second /// example, the lowercased string is represented `"caf\u{e9}"` (the last /// character is a single Unicode character representing an 'e' with an acute /// accent). Since the last character is defined outside the scope of ASCII, /// it will not get mapped to an uppercase variant, resulting in `"CAF\u{e9}"`. /// /// [combining character]: https://en.wikipedia.org/wiki/Combining_character #[stable(feature = "rust1", since = "1.0.0")] pub trait AsciiExt { /// Container type for copied ASCII characters. #[stable(feature = "rust1", since = "1.0.0")] type Owned; /// Checks if the value is within the ASCII range. /// /// # Examples /// /// ``` /// use std::ascii::AsciiExt; /// /// let ascii = 'a'; /// let non_ascii = '❤'; /// let int_ascii = 97; /// /// assert!(ascii.is_ascii()); /// assert!(!non_ascii.is_ascii()); /// assert!(int_ascii.is_ascii()); /// ``` #[stable(feature = "rust1", since = "1.0.0")] fn is_ascii(&self) -> bool; /// Makes a copy of the value in its ASCII upper case equivalent. /// /// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', /// but non-ASCII letters are unchanged. /// /// To uppercase the value in-place, use [`make_ascii_uppercase`]. /// /// To uppercase ASCII characters in addition to non-ASCII characters, use /// [`str::to_uppercase`]. /// /// # Examples /// /// ``` /// use std::ascii::AsciiExt; /// /// let ascii = 'a'; /// let non_ascii = '❤'; /// let int_ascii = 97; /// /// assert_eq!('A', ascii.to_ascii_uppercase()); /// assert_eq!('❤', non_ascii.to_ascii_uppercase()); /// assert_eq!(65, int_ascii.to_ascii_uppercase()); /// ``` /// /// [`make_ascii_uppercase`]: #tymethod.make_ascii_uppercase /// [`str::to_uppercase`]: ../primitive.str.html#method.to_uppercase #[stable(feature = "rust1", since = "1.0.0")] fn to_ascii_uppercase(&self) -> Self::Owned; /// Makes a copy of the value in its ASCII lower case equivalent. /// /// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', /// but non-ASCII letters are unchanged. /// /// To lowercase the value in-place, use [`make_ascii_lowercase`]. /// /// To lowercase ASCII characters in addition to non-ASCII characters, use /// [`str::to_lowercase`]. /// /// # Examples /// /// ``` /// use std::ascii::AsciiExt; /// /// let ascii = 'A'; /// let non_ascii = '❤'; /// let int_ascii = 65; /// /// assert_eq!('a', ascii.to_ascii_lowercase()); /// assert_eq!('❤', non_ascii.to_ascii_lowercase()); /// assert_eq!(97, int_ascii.to_ascii_lowercase()); /// ``` /// /// [`make_ascii_lowercase`]: #tymethod.make_ascii_lowercase /// [`str::to_lowercase`]: ../primitive.str.html#method.to_lowercase #[stable(feature = "rust1", since = "1.0.0")] fn to_ascii_lowercase(&self) -> Self::Owned; /// Checks that two values are an ASCII case-insensitive match. /// /// Same as `to_ascii_lowercase(a) == to_ascii_lowercase(b)`, /// but without allocating and copying temporaries. /// /// # Examples /// /// ``` /// use std::ascii::AsciiExt; /// /// let ascii1 = 'A'; /// let ascii2 = 'a'; /// let ascii3 = 'A'; /// let ascii4 = 'z'; /// /// assert!(ascii1.eq_ignore_ascii_case(&ascii2)); /// assert!(ascii1.eq_ignore_ascii_case(&ascii3)); /// assert!(!ascii1.eq_ignore_ascii_case(&ascii4)); /// ``` #[stable(feature = "rust1", since = "1.0.0")] fn eq_ignore_ascii_case(&self, other: &Self) -> bool; /// Converts this type to its ASCII upper case equivalent in-place. /// /// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', /// but non-ASCII letters are unchanged. /// /// To return a new uppercased value without modifying the existing one, use /// [`to_ascii_uppercase`]. /// /// # Examples /// /// ``` /// use std::ascii::AsciiExt; /// /// let mut ascii = 'a'; /// /// ascii.make_ascii_uppercase(); /// /// assert_eq!('A', ascii); /// ``` /// /// [`to_ascii_uppercase`]: #tymethod.to_ascii_uppercase #[stable(feature = "ascii", since = "1.9.0")] fn make_ascii_uppercase(&mut self); /// Converts this type to its ASCII lower case equivalent in-place. /// /// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', /// but non-ASCII letters are unchanged. /// /// To return a new lowercased value without modifying the existing one, use /// [`to_ascii_lowercase`]. /// /// # Examples /// /// ``` /// use std::ascii::AsciiExt; /// /// let mut ascii = 'A'; /// /// ascii.make_ascii_lowercase(); /// /// assert_eq!('a', ascii); /// ``` /// /// [`to_ascii_lowercase`]: #tymethod.to_ascii_lowercase #[stable(feature = "ascii", since = "1.9.0")] fn make_ascii_lowercase(&mut self); /// Checks if the value is an ASCII alphabetic character: /// U+0041 'A' ... U+005A 'Z' or U+0061 'a' ... U+007A 'z'. /// For strings, true if all characters in the string are /// ASCII alphabetic. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(A.is_ascii_alphabetic()); /// assert!(G.is_ascii_alphabetic()); /// assert!(a.is_ascii_alphabetic()); /// assert!(g.is_ascii_alphabetic()); /// assert!(!zero.is_ascii_alphabetic()); /// assert!(!percent.is_ascii_alphabetic()); /// assert!(!space.is_ascii_alphabetic()); /// assert!(!lf.is_ascii_alphabetic()); /// assert!(!esc.is_ascii_alphabetic()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_alphabetic(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII uppercase character: /// U+0041 'A' ... U+005A 'Z'. /// For strings, true if all characters in the string are /// ASCII uppercase. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(A.is_ascii_uppercase()); /// assert!(G.is_ascii_uppercase()); /// assert!(!a.is_ascii_uppercase()); /// assert!(!g.is_ascii_uppercase()); /// assert!(!zero.is_ascii_uppercase()); /// assert!(!percent.is_ascii_uppercase()); /// assert!(!space.is_ascii_uppercase()); /// assert!(!lf.is_ascii_uppercase()); /// assert!(!esc.is_ascii_uppercase()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_uppercase(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII lowercase character: /// U+0061 'a' ... U+007A 'z'. /// For strings, true if all characters in the string are /// ASCII lowercase. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(!A.is_ascii_lowercase()); /// assert!(!G.is_ascii_lowercase()); /// assert!(a.is_ascii_lowercase()); /// assert!(g.is_ascii_lowercase()); /// assert!(!zero.is_ascii_lowercase()); /// assert!(!percent.is_ascii_lowercase()); /// assert!(!space.is_ascii_lowercase()); /// assert!(!lf.is_ascii_lowercase()); /// assert!(!esc.is_ascii_lowercase()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_lowercase(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII alphanumeric character: /// U+0041 'A' ... U+005A 'Z', U+0061 'a' ... U+007A 'z', or /// U+0030 '0' ... U+0039 '9'. /// For strings, true if all characters in the string are /// ASCII alphanumeric. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(A.is_ascii_alphanumeric()); /// assert!(G.is_ascii_alphanumeric()); /// assert!(a.is_ascii_alphanumeric()); /// assert!(g.is_ascii_alphanumeric()); /// assert!(zero.is_ascii_alphanumeric()); /// assert!(!percent.is_ascii_alphanumeric()); /// assert!(!space.is_ascii_alphanumeric()); /// assert!(!lf.is_ascii_alphanumeric()); /// assert!(!esc.is_ascii_alphanumeric()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_alphanumeric(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII decimal digit: /// U+0030 '0' ... U+0039 '9'. /// For strings, true if all characters in the string are /// ASCII digits. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(!A.is_ascii_digit()); /// assert!(!G.is_ascii_digit()); /// assert!(!a.is_ascii_digit()); /// assert!(!g.is_ascii_digit()); /// assert!(zero.is_ascii_digit()); /// assert!(!percent.is_ascii_digit()); /// assert!(!space.is_ascii_digit()); /// assert!(!lf.is_ascii_digit()); /// assert!(!esc.is_ascii_digit()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_digit(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII hexadecimal digit: /// U+0030 '0' ... U+0039 '9', U+0041 'A' ... U+0046 'F', or /// U+0061 'a' ... U+0066 'f'. /// For strings, true if all characters in the string are /// ASCII hex digits. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(A.is_ascii_hexdigit()); /// assert!(!G.is_ascii_hexdigit()); /// assert!(a.is_ascii_hexdigit()); /// assert!(!g.is_ascii_hexdigit()); /// assert!(zero.is_ascii_hexdigit()); /// assert!(!percent.is_ascii_hexdigit()); /// assert!(!space.is_ascii_hexdigit()); /// assert!(!lf.is_ascii_hexdigit()); /// assert!(!esc.is_ascii_hexdigit()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_hexdigit(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII punctuation character: /// /// U+0021 ... U+002F `! " # $ % & ' ( ) * + , - . /` /// U+003A ... U+0040 `: ; < = > ? @` /// U+005B ... U+0060 ``[ \\ ] ^ _ ` `` /// U+007B ... U+007E `{ | } ~` /// /// For strings, true if all characters in the string are /// ASCII punctuation. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(!A.is_ascii_punctuation()); /// assert!(!G.is_ascii_punctuation()); /// assert!(!a.is_ascii_punctuation()); /// assert!(!g.is_ascii_punctuation()); /// assert!(!zero.is_ascii_punctuation()); /// assert!(percent.is_ascii_punctuation()); /// assert!(!space.is_ascii_punctuation()); /// assert!(!lf.is_ascii_punctuation()); /// assert!(!esc.is_ascii_punctuation()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_punctuation(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII graphic character: /// U+0021 '@' ... U+007E '~'. /// For strings, true if all characters in the string are /// ASCII punctuation. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(A.is_ascii_graphic()); /// assert!(G.is_ascii_graphic()); /// assert!(a.is_ascii_graphic()); /// assert!(g.is_ascii_graphic()); /// assert!(zero.is_ascii_graphic()); /// assert!(percent.is_ascii_graphic()); /// assert!(!space.is_ascii_graphic()); /// assert!(!lf.is_ascii_graphic()); /// assert!(!esc.is_ascii_graphic()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_graphic(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII whitespace character: /// U+0020 SPACE, U+0009 HORIZONTAL TAB, U+000A LINE FEED, /// U+000C FORM FEED, or U+000D CARRIAGE RETURN. /// For strings, true if all characters in the string are /// ASCII whitespace. /// /// Rust uses the WhatWG Infra Standard's [definition of ASCII /// whitespace][infra-aw]. There are several other definitions in /// wide use. For instance, [the POSIX locale][pct] includes /// U+000B VERTICAL TAB as well as all the above characters, /// but—from the very same specification—[the default rule for /// "field splitting" in the Bourne shell][bfs] considers *only* /// SPACE, HORIZONTAL TAB, and LINE FEED as whitespace. /// /// If you are writing a program that will process an existing /// file format, check what that format's definition of whitespace is /// before using this function. /// /// [infra-aw]: https://infra.spec.whatwg.org/#ascii-whitespace /// [pct]: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html#tag_07_03_01 /// [bfs]: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_05 /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(!A.is_ascii_whitespace()); /// assert!(!G.is_ascii_whitespace()); /// assert!(!a.is_ascii_whitespace()); /// assert!(!g.is_ascii_whitespace()); /// assert!(!zero.is_ascii_whitespace()); /// assert!(!percent.is_ascii_whitespace()); /// assert!(space.is_ascii_whitespace()); /// assert!(lf.is_ascii_whitespace()); /// assert!(!esc.is_ascii_whitespace()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_whitespace(&self) -> bool { unimplemented!(); } /// Checks if the value is an ASCII control character: /// U+0000 NUL ... U+001F UNIT SEPARATOR, or U+007F DELETE. /// Note that most ASCII whitespace characters are control /// characters, but SPACE is not. /// /// # Examples /// /// ``` /// #![feature(ascii_ctype)] /// # #![allow(non_snake_case)] /// use std::ascii::AsciiExt; /// let A = 'A'; /// let G = 'G'; /// let a = 'a'; /// let g = 'g'; /// let zero = '0'; /// let percent = '%'; /// let space = ' '; /// let lf = '\n'; /// let esc = '\u{001b}'; /// /// assert!(!A.is_ascii_control()); /// assert!(!G.is_ascii_control()); /// assert!(!a.is_ascii_control()); /// assert!(!g.is_ascii_control()); /// assert!(!zero.is_ascii_control()); /// assert!(!percent.is_ascii_control()); /// assert!(!space.is_ascii_control()); /// assert!(lf.is_ascii_control()); /// assert!(esc.is_ascii_control()); /// ``` #[unstable(feature = "ascii_ctype", issue = "39658")] fn is_ascii_control(&self) -> bool { unimplemented!(); } } #[stable(feature = "rust1", since = "1.0.0")] impl AsciiExt for str { type Owned = String; #[inline] fn is_ascii(&self) -> bool { self.bytes().all(|b| b.is_ascii()) } #[inline] fn to_ascii_uppercase(&self) -> String { let mut bytes = self.as_bytes().to_vec(); bytes.make_ascii_uppercase(); // make_ascii_uppercase() preserves the UTF-8 invariant. unsafe { String::from_utf8_unchecked(bytes) } } #[inline] fn to_ascii_lowercase(&self) -> String { let mut bytes = self.as_bytes().to_vec(); bytes.make_ascii_lowercase(); // make_ascii_uppercase() preserves the UTF-8 invariant. unsafe { String::from_utf8_unchecked(bytes) } } #[inline] fn eq_ignore_ascii_case(&self, other: &str) -> bool { self.as_bytes().eq_ignore_ascii_case(other.as_bytes()) } fn make_ascii_uppercase(&mut self) { let me = unsafe { self.as_bytes_mut() }; me.make_ascii_uppercase() } fn make_ascii_lowercase(&mut self) { let me = unsafe { self.as_bytes_mut() }; me.make_ascii_lowercase() } #[inline] fn is_ascii_alphabetic(&self) -> bool { self.bytes().all(|b| b.is_ascii_alphabetic()) } #[inline] fn is_ascii_uppercase(&self) -> bool { self.bytes().all(|b| b.is_ascii_uppercase()) } #[inline] fn is_ascii_lowercase(&self) -> bool { self.bytes().all(|b| b.is_ascii_lowercase()) } #[inline] fn is_ascii_alphanumeric(&self) -> bool { self.bytes().all(|b| b.is_ascii_alphanumeric()) } #[inline] fn is_ascii_digit(&self) -> bool { self.bytes().all(|b| b.is_ascii_digit()) } #[inline] fn is_ascii_hexdigit(&self) -> bool { self.bytes().all(|b| b.is_ascii_hexdigit()) } #[inline] fn is_ascii_punctuation(&self) -> bool { self.bytes().all(|b| b.is_ascii_punctuation()) } #[inline] fn is_ascii_graphic(&self) -> bool { self.bytes().all(|b| b.is_ascii_graphic()) } #[inline] fn is_ascii_whitespace(&self) -> bool { self.bytes().all(|b| b.is_ascii_whitespace()) } #[inline] fn is_ascii_control(&self) -> bool { self.bytes().all(|b| b.is_ascii_control()) } } #[stable(feature = "rust1", since = "1.0.0")] impl AsciiExt for [u8] { type Owned = Vec; #[inline] fn is_ascii(&self) -> bool { self.iter().all(|b| b.is_ascii()) } #[inline] fn to_ascii_uppercase(&self) -> Vec { let mut me = self.to_vec(); me.make_ascii_uppercase(); return me } #[inline] fn to_ascii_lowercase(&self) -> Vec { let mut me = self.to_vec(); me.make_ascii_lowercase(); return me } #[inline] fn eq_ignore_ascii_case(&self, other: &[u8]) -> bool { self.len() == other.len() && self.iter().zip(other).all(|(a, b)| { a.eq_ignore_ascii_case(b) }) } fn make_ascii_uppercase(&mut self) { for byte in self { byte.make_ascii_uppercase(); } } fn make_ascii_lowercase(&mut self) { for byte in self { byte.make_ascii_lowercase(); } } #[inline] fn is_ascii_alphabetic(&self) -> bool { self.iter().all(|b| b.is_ascii_alphabetic()) } #[inline] fn is_ascii_uppercase(&self) -> bool { self.iter().all(|b| b.is_ascii_uppercase()) } #[inline] fn is_ascii_lowercase(&self) -> bool { self.iter().all(|b| b.is_ascii_lowercase()) } #[inline] fn is_ascii_alphanumeric(&self) -> bool { self.iter().all(|b| b.is_ascii_alphanumeric()) } #[inline] fn is_ascii_digit(&self) -> bool { self.iter().all(|b| b.is_ascii_digit()) } #[inline] fn is_ascii_hexdigit(&self) -> bool { self.iter().all(|b| b.is_ascii_hexdigit()) } #[inline] fn is_ascii_punctuation(&self) -> bool { self.iter().all(|b| b.is_ascii_punctuation()) } #[inline] fn is_ascii_graphic(&self) -> bool { self.iter().all(|b| b.is_ascii_graphic()) } #[inline] fn is_ascii_whitespace(&self) -> bool { self.iter().all(|b| b.is_ascii_whitespace()) } #[inline] fn is_ascii_control(&self) -> bool { self.iter().all(|b| b.is_ascii_control()) } } #[stable(feature = "rust1", since = "1.0.0")] impl AsciiExt for u8 { type Owned = u8; #[inline] fn is_ascii(&self) -> bool { *self & 128 == 0 } #[inline] fn to_ascii_uppercase(&self) -> u8 { ASCII_UPPERCASE_MAP[*self as usize] } #[inline] fn to_ascii_lowercase(&self) -> u8 { ASCII_LOWERCASE_MAP[*self as usize] } #[inline] fn eq_ignore_ascii_case(&self, other: &u8) -> bool { self.to_ascii_lowercase() == other.to_ascii_lowercase() } #[inline] fn make_ascii_uppercase(&mut self) { *self = self.to_ascii_uppercase(); } #[inline] fn make_ascii_lowercase(&mut self) { *self = self.to_ascii_lowercase(); } #[inline] fn is_ascii_alphabetic(&self) -> bool { if *self >= 0x80 { return false; } match ASCII_CHARACTER_CLASS[*self as usize] { L|Lx|U|Ux => true, _ => false } } #[inline] fn is_ascii_uppercase(&self) -> bool { if *self >= 0x80 { return false } match ASCII_CHARACTER_CLASS[*self as usize] { U|Ux => true, _ => false } } #[inline] fn is_ascii_lowercase(&self) -> bool { if *self >= 0x80 { return false } match ASCII_CHARACTER_CLASS[*self as usize] { L|Lx => true, _ => false } } #[inline] fn is_ascii_alphanumeric(&self) -> bool { if *self >= 0x80 { return false } match ASCII_CHARACTER_CLASS[*self as usize] { D|L|Lx|U|Ux => true, _ => false } } #[inline] fn is_ascii_digit(&self) -> bool { if *self >= 0x80 { return false } match ASCII_CHARACTER_CLASS[*self as usize] { D => true, _ => false } } #[inline] fn is_ascii_hexdigit(&self) -> bool { if *self >= 0x80 { return false } match ASCII_CHARACTER_CLASS[*self as usize] { D|Lx|Ux => true, _ => false } } #[inline] fn is_ascii_punctuation(&self) -> bool { if *self >= 0x80 { return false } match ASCII_CHARACTER_CLASS[*self as usize] { P => true, _ => false } } #[inline] fn is_ascii_graphic(&self) -> bool { if *self >= 0x80 { return false; } match ASCII_CHARACTER_CLASS[*self as usize] { Ux|U|Lx|L|D|P => true, _ => false } } #[inline] fn is_ascii_whitespace(&self) -> bool { if *self >= 0x80 { return false; } match ASCII_CHARACTER_CLASS[*self as usize] { Cw|W => true, _ => false } } #[inline] fn is_ascii_control(&self) -> bool { if *self >= 0x80 { return false; } match ASCII_CHARACTER_CLASS[*self as usize] { C|Cw => true, _ => false } } } #[stable(feature = "rust1", since = "1.0.0")] impl AsciiExt for char { type Owned = char; #[inline] fn is_ascii(&self) -> bool { *self as u32 <= 0x7F } #[inline] fn to_ascii_uppercase(&self) -> char { if self.is_ascii() { (*self as u8).to_ascii_uppercase() as char } else { *self } } #[inline] fn to_ascii_lowercase(&self) -> char { if self.is_ascii() { (*self as u8).to_ascii_lowercase() as char } else { *self } } #[inline] fn eq_ignore_ascii_case(&self, other: &char) -> bool { self.to_ascii_lowercase() == other.to_ascii_lowercase() } #[inline] fn make_ascii_uppercase(&mut self) { *self = self.to_ascii_uppercase(); } #[inline] fn make_ascii_lowercase(&mut self) { *self = self.to_ascii_lowercase(); } #[inline] fn is_ascii_alphabetic(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_alphabetic() } #[inline] fn is_ascii_uppercase(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_uppercase() } #[inline] fn is_ascii_lowercase(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_lowercase() } #[inline] fn is_ascii_alphanumeric(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_alphanumeric() } #[inline] fn is_ascii_digit(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_digit() } #[inline] fn is_ascii_hexdigit(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_hexdigit() } #[inline] fn is_ascii_punctuation(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_punctuation() } #[inline] fn is_ascii_graphic(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_graphic() } #[inline] fn is_ascii_whitespace(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_whitespace() } #[inline] fn is_ascii_control(&self) -> bool { (*self as u32 <= 0x7f) && (*self as u8).is_ascii_control() } } /// An iterator over the escaped version of a byte. /// /// This `struct` is created by the [`escape_default`] function. See its /// documentation for more. /// /// [`escape_default`]: fn.escape_default.html #[stable(feature = "rust1", since = "1.0.0")] pub struct EscapeDefault { range: Range, data: [u8; 4], } /// Returns an iterator that produces an escaped version of a `u8`. /// /// The default is chosen with a bias toward producing literals that are /// legal in a variety of languages, including C++11 and similar C-family /// languages. The exact rules are: /// /// - Tab, CR and LF are escaped as '\t', '\r' and '\n' respectively. /// - Single-quote, double-quote and backslash chars are backslash-escaped. /// - Any other chars in the range [0x20,0x7e] are not escaped. /// - Any other chars are given hex escapes of the form '\xNN'. /// - Unicode escapes are never generated by this function. /// /// # Examples /// /// ``` /// use std::ascii; /// /// let escaped = ascii::escape_default(b'0').next().unwrap(); /// assert_eq!(b'0', escaped); /// /// let mut escaped = ascii::escape_default(b'\t'); /// /// assert_eq!(b'\\', escaped.next().unwrap()); /// assert_eq!(b't', escaped.next().unwrap()); /// /// let mut escaped = ascii::escape_default(b'\r'); /// /// assert_eq!(b'\\', escaped.next().unwrap()); /// assert_eq!(b'r', escaped.next().unwrap()); /// /// let mut escaped = ascii::escape_default(b'\n'); /// /// assert_eq!(b'\\', escaped.next().unwrap()); /// assert_eq!(b'n', escaped.next().unwrap()); /// /// let mut escaped = ascii::escape_default(b'\''); /// /// assert_eq!(b'\\', escaped.next().unwrap()); /// assert_eq!(b'\'', escaped.next().unwrap()); /// /// let mut escaped = ascii::escape_default(b'"'); /// /// assert_eq!(b'\\', escaped.next().unwrap()); /// assert_eq!(b'"', escaped.next().unwrap()); /// /// let mut escaped = ascii::escape_default(b'\\'); /// /// assert_eq!(b'\\', escaped.next().unwrap()); /// assert_eq!(b'\\', escaped.next().unwrap()); /// /// let mut escaped = ascii::escape_default(b'\x9d'); /// /// assert_eq!(b'\\', escaped.next().unwrap()); /// assert_eq!(b'x', escaped.next().unwrap()); /// assert_eq!(b'9', escaped.next().unwrap()); /// assert_eq!(b'd', escaped.next().unwrap()); /// ``` #[stable(feature = "rust1", since = "1.0.0")] pub fn escape_default(c: u8) -> EscapeDefault { let (data, len) = match c { b'\t' => ([b'\\', b't', 0, 0], 2), b'\r' => ([b'\\', b'r', 0, 0], 2), b'\n' => ([b'\\', b'n', 0, 0], 2), b'\\' => ([b'\\', b'\\', 0, 0], 2), b'\'' => ([b'\\', b'\'', 0, 0], 2), b'"' => ([b'\\', b'"', 0, 0], 2), b'\x20' ... b'\x7e' => ([c, 0, 0, 0], 1), _ => ([b'\\', b'x', hexify(c >> 4), hexify(c & 0xf)], 4), }; return EscapeDefault { range: (0.. len), data: data }; fn hexify(b: u8) -> u8 { match b { 0 ... 9 => b'0' + b, _ => b'a' + b - 10, } } } #[stable(feature = "rust1", since = "1.0.0")] impl Iterator for EscapeDefault { type Item = u8; fn next(&mut self) -> Option { self.range.next().map(|i| self.data[i]) } fn size_hint(&self) -> (usize, Option) { self.range.size_hint() } } #[stable(feature = "rust1", since = "1.0.0")] impl DoubleEndedIterator for EscapeDefault { fn next_back(&mut self) -> Option { self.range.next_back().map(|i| self.data[i]) } } #[stable(feature = "rust1", since = "1.0.0")] impl ExactSizeIterator for EscapeDefault {} #[unstable(feature = "fused", issue = "35602")] impl FusedIterator for EscapeDefault {} #[stable(feature = "std_debug", since = "1.16.0")] impl fmt::Debug for EscapeDefault { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { f.pad("EscapeDefault { .. }") } } static ASCII_LOWERCASE_MAP: [u8; 256] = [ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, b' ', b'!', b'"', b'#', b'$', b'%', b'&', b'\'', b'(', b')', b'*', b'+', b',', b'-', b'.', b'/', b'0', b'1', b'2', b'3', b'4', b'5', b'6', b'7', b'8', b'9', b':', b';', b'<', b'=', b'>', b'?', b'@', b'a', b'b', b'c', b'd', b'e', b'f', b'g', b'h', b'i', b'j', b'k', b'l', b'm', b'n', b'o', b'p', b'q', b'r', b's', b't', b'u', b'v', b'w', b'x', b'y', b'z', b'[', b'\\', b']', b'^', b'_', b'`', b'a', b'b', b'c', b'd', b'e', b'f', b'g', b'h', b'i', b'j', b'k', b'l', b'm', b'n', b'o', b'p', b'q', b'r', b's', b't', b'u', b'v', b'w', b'x', b'y', b'z', b'{', b'|', b'}', b'~', 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, ]; static ASCII_UPPERCASE_MAP: [u8; 256] = [ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, b' ', b'!', b'"', b'#', b'$', b'%', b'&', b'\'', b'(', b')', b'*', b'+', b',', b'-', b'.', b'/', b'0', b'1', b'2', b'3', b'4', b'5', b'6', b'7', b'8', b'9', b':', b';', b'<', b'=', b'>', b'?', b'@', b'A', b'B', b'C', b'D', b'E', b'F', b'G', b'H', b'I', b'J', b'K', b'L', b'M', b'N', b'O', b'P', b'Q', b'R', b'S', b'T', b'U', b'V', b'W', b'X', b'Y', b'Z', b'[', b'\\', b']', b'^', b'_', b'`', b'A', b'B', b'C', b'D', b'E', b'F', b'G', b'H', b'I', b'J', b'K', b'L', b'M', b'N', b'O', b'P', b'Q', b'R', b'S', b'T', b'U', b'V', b'W', b'X', b'Y', b'Z', b'{', b'|', b'}', b'~', 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, ]; enum AsciiCharacterClass { C, // control Cw, // control whitespace W, // whitespace D, // digit L, // lowercase Lx, // lowercase hex digit U, // uppercase Ux, // uppercase hex digit P, // punctuation } use self::AsciiCharacterClass::*; static ASCII_CHARACTER_CLASS: [AsciiCharacterClass; 128] = [ // _0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _a _b _c _d _e _f C, C, C, C, C, C, C, C, C, Cw,Cw,C, Cw,Cw,C, C, // 0_ C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, // 1_ W, P, P, P, P, P, P, P, P, P, P, P, P, P, P, P, // 2_ D, D, D, D, D, D, D, D, D, D, P, P, P, P, P, P, // 3_ P, Ux,Ux,Ux,Ux,Ux,Ux,U, U, U, U, U, U, U, U, U, // 4_ U, U, U, U, U, U, U, U, U, U, U, P, P, P, P, P, // 5_ P, Lx,Lx,Lx,Lx,Lx,Lx,L, L, L, L, L, L, L, L, L, // 6_ L, L, L, L, L, L, L, L, L, L, L, P, P, P, P, C, // 7_ ]; #[cfg(test)] mod tests { use super::*; use char::from_u32; #[test] fn test_is_ascii() { assert!(b"".is_ascii()); assert!(b"banana\0\x7F".is_ascii()); assert!(b"banana\0\x7F".iter().all(|b| b.is_ascii())); assert!(!b"Vi\xe1\xbb\x87t Nam".is_ascii()); assert!(!b"Vi\xe1\xbb\x87t Nam".iter().all(|b| b.is_ascii())); assert!(!b"\xe1\xbb\x87".iter().any(|b| b.is_ascii())); assert!("".is_ascii()); assert!("banana\0\u{7F}".is_ascii()); assert!("banana\0\u{7F}".chars().all(|c| c.is_ascii())); assert!(!"ประเทศไทย中华Việt Nam".chars().all(|c| c.is_ascii())); assert!(!"ประเทศไทย中华ệ ".chars().any(|c| c.is_ascii())); } #[test] fn test_to_ascii_uppercase() { assert_eq!("url()URL()uRl()ürl".to_ascii_uppercase(), "URL()URL()URL()üRL"); assert_eq!("hıKß".to_ascii_uppercase(), "HıKß"); for i in 0..501 { let upper = if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 } else { i }; assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_uppercase(), (from_u32(upper).unwrap()).to_string()); } } #[test] fn test_to_ascii_lowercase() { assert_eq!("url()URL()uRl()Ürl".to_ascii_lowercase(), "url()url()url()Ürl"); // Dotted capital I, Kelvin sign, Sharp S. assert_eq!("HİKß".to_ascii_lowercase(), "hİKß"); for i in 0..501 { let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 } else { i }; assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_lowercase(), (from_u32(lower).unwrap()).to_string()); } } #[test] fn test_make_ascii_lower_case() { macro_rules! test { ($from: expr, $to: expr) => { { let mut x = $from; x.make_ascii_lowercase(); assert_eq!(x, $to); } } } test!(b'A', b'a'); test!(b'a', b'a'); test!(b'!', b'!'); test!('A', 'a'); test!('À', 'À'); test!('a', 'a'); test!('!', '!'); test!(b"H\xc3\x89".to_vec(), b"h\xc3\x89"); test!("HİKß".to_string(), "hİKß"); } #[test] fn test_make_ascii_upper_case() { macro_rules! test { ($from: expr, $to: expr) => { { let mut x = $from; x.make_ascii_uppercase(); assert_eq!(x, $to); } } } test!(b'a', b'A'); test!(b'A', b'A'); test!(b'!', b'!'); test!('a', 'A'); test!('à', 'à'); test!('A', 'A'); test!('!', '!'); test!(b"h\xc3\xa9".to_vec(), b"H\xc3\xa9"); test!("hıKß".to_string(), "HıKß"); let mut x = "Hello".to_string(); x[..3].make_ascii_uppercase(); // Test IndexMut on String. assert_eq!(x, "HELlo") } #[test] fn test_eq_ignore_ascii_case() { assert!("url()URL()uRl()Ürl".eq_ignore_ascii_case("url()url()url()Ürl")); assert!(!"Ürl".eq_ignore_ascii_case("ürl")); // Dotted capital I, Kelvin sign, Sharp S. assert!("HİKß".eq_ignore_ascii_case("hİKß")); assert!(!"İ".eq_ignore_ascii_case("i")); assert!(!"K".eq_ignore_ascii_case("k")); assert!(!"ß".eq_ignore_ascii_case("s")); for i in 0..501 { let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 } else { i }; assert!((from_u32(i).unwrap()).to_string().eq_ignore_ascii_case( &from_u32(lower).unwrap().to_string())); } } #[test] fn inference_works() { let x = "a".to_string(); x.eq_ignore_ascii_case("A"); } // Shorthands used by the is_ascii_* tests. macro_rules! assert_all { ($what:ident, $($str:tt),+) => {{ $( for b in $str.chars() { if !b.$what() { panic!("expected {}({}) but it isn't", stringify!($what), b); } } for b in $str.as_bytes().iter() { if !b.$what() { panic!("expected {}(0x{:02x})) but it isn't", stringify!($what), b); } } assert!($str.$what()); assert!($str.as_bytes().$what()); )+ }}; ($what:ident, $($str:tt),+,) => (assert_all!($what,$($str),+)) } macro_rules! assert_none { ($what:ident, $($str:tt),+) => {{ $( for b in $str.chars() { if b.$what() { panic!("expected not-{}({}) but it is", stringify!($what), b); } } for b in $str.as_bytes().iter() { if b.$what() { panic!("expected not-{}(0x{:02x})) but it is", stringify!($what), b); } } )* }}; ($what:ident, $($str:tt),+,) => (assert_none!($what,$($str),+)) } #[test] fn test_is_ascii_alphabetic() { assert_all!(is_ascii_alphabetic, "", "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", ); assert_none!(is_ascii_alphabetic, "0123456789", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_uppercase() { assert_all!(is_ascii_uppercase, "", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", ); assert_none!(is_ascii_uppercase, "abcdefghijklmnopqrstuvwxyz", "0123456789", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_lowercase() { assert_all!(is_ascii_lowercase, "abcdefghijklmnopqrstuvwxyz", ); assert_none!(is_ascii_lowercase, "ABCDEFGHIJKLMNOQPRSTUVWXYZ", "0123456789", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_alphanumeric() { assert_all!(is_ascii_alphanumeric, "", "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", "0123456789", ); assert_none!(is_ascii_alphanumeric, "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_digit() { assert_all!(is_ascii_digit, "", "0123456789", ); assert_none!(is_ascii_digit, "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_hexdigit() { assert_all!(is_ascii_hexdigit, "", "0123456789", "abcdefABCDEF", ); assert_none!(is_ascii_hexdigit, "ghijklmnopqrstuvwxyz", "GHIJKLMNOQPRSTUVWXYZ", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_punctuation() { assert_all!(is_ascii_punctuation, "", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", ); assert_none!(is_ascii_punctuation, "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", "0123456789", " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_graphic() { assert_all!(is_ascii_graphic, "", "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", "0123456789", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", ); assert_none!(is_ascii_graphic, " \t\n\x0c\r", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_whitespace() { assert_all!(is_ascii_whitespace, "", " \t\n\x0c\r", ); assert_none!(is_ascii_whitespace, "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", "0123456789", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x0b\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); } #[test] fn test_is_ascii_control() { assert_all!(is_ascii_control, "", "\x00\x01\x02\x03\x04\x05\x06\x07", "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", "\x10\x11\x12\x13\x14\x15\x16\x17", "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", "\x7f", ); assert_none!(is_ascii_control, "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOQPRSTUVWXYZ", "0123456789", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", " ", ); } }