pub use core::slice::{RSplit, RSplitMut};
#[stable(feature = "rust1", since = "1.0.0")]
pub use core::slice::{from_raw_parts, from_raw_parts_mut};
+#[unstable(feature = "from_ref", issue = "45703")]
+pub use core::slice::{from_ref, from_ref_mut};
#[unstable(feature = "slice_get_slice", issue = "35729")]
pub use core::slice::SliceIndex;
}
}
+// FIXME(LukasKalbertodt): the `not(stage0)` constraint can be removed in the
+// future once the stage0 compiler is new enough to know about the `slice_u8`
+// lang item.
+#[lang = "slice_u8"]
+#[cfg(all(not(stage0), not(test)))]
+impl [u8] {
+ /// Checks if all bytes in this slice are within the ASCII range.
+ #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
+ #[inline]
+ pub fn is_ascii(&self) -> bool {
+ self.iter().all(|b| b.is_ascii())
+ }
+
+ /// Returns a vector containing a copy of this slice where each byte
+ /// is mapped to 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`].
+ ///
+ /// [`make_ascii_uppercase`]: #method.make_ascii_uppercase
+ #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
+ #[inline]
+ pub fn to_ascii_uppercase(&self) -> Vec<u8> {
+ let mut me = self.to_vec();
+ me.make_ascii_uppercase();
+ me
+ }
+
+ /// Returns a vector containing a copy of this slice where each byte
+ /// is mapped to 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`].
+ ///
+ /// [`make_ascii_lowercase`]: #method.make_ascii_lowercase
+ #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
+ #[inline]
+ pub fn to_ascii_lowercase(&self) -> Vec<u8> {
+ let mut me = self.to_vec();
+ me.make_ascii_lowercase();
+ me
+ }
+
+ /// Checks that two slices are an ASCII case-insensitive match.
+ ///
+ /// Same as `to_ascii_lowercase(a) == to_ascii_lowercase(b)`,
+ /// but without allocating and copying temporaries.
+ #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
+ #[inline]
+ pub 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)
+ })
+ }
+
+ /// Converts this slice 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`].
+ ///
+ /// [`to_ascii_uppercase`]: #method.to_ascii_uppercase
+ #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
+ #[inline]
+ pub fn make_ascii_uppercase(&mut self) {
+ for byte in self {
+ byte.make_ascii_uppercase();
+ }
+ }
+
+ /// Converts this slice 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`].
+ ///
+ /// [`to_ascii_lowercase`]: #method.to_ascii_lowercase
+ #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
+ #[inline]
+ pub fn make_ascii_lowercase(&mut self) {
+ for byte in self {
+ byte.make_ascii_lowercase();
+ }
+ }
+
+ /// Checks if all bytes of this slice are ASCII alphabetic characters:
+ ///
+ /// - U+0041 'A' ... U+005A 'Z', or
+ /// - U+0061 'a' ... U+007A 'z'.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_alphabetic(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_alphabetic())
+ }
+
+ /// Checks if all bytes of this slice are ASCII uppercase characters:
+ /// U+0041 'A' ... U+005A 'Z'.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_uppercase(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_uppercase())
+ }
+
+ /// Checks if all bytes of this slice are ASCII lowercase characters:
+ /// U+0061 'a' ... U+007A 'z'.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_lowercase(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_lowercase())
+ }
+
+ /// Checks if all bytes of this slice are ASCII alphanumeric characters:
+ ///
+ /// - U+0041 'A' ... U+005A 'Z', or
+ /// - U+0061 'a' ... U+007A 'z', or
+ /// - U+0030 '0' ... U+0039 '9'.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_alphanumeric(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_alphanumeric())
+ }
+
+ /// Checks if all bytes of this slice are ASCII decimal digit:
+ /// U+0030 '0' ... U+0039 '9'.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_digit(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_digit())
+ }
+
+ /// Checks if all bytes of this slice are ASCII hexadecimal digits:
+ ///
+ /// - U+0030 '0' ... U+0039 '9', or
+ /// - U+0041 'A' ... U+0046 'F', or
+ /// - U+0061 'a' ... U+0066 'f'.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_hexdigit(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_hexdigit())
+ }
+
+ /// Checks if all bytes of this slice are ASCII punctuation characters:
+ ///
+ /// - U+0021 ... U+002F `! " # $ % & ' ( ) * + , - . /`, or
+ /// - U+003A ... U+0040 `: ; < = > ? @`, or
+ /// - U+005B ... U+0060 `[ \\ ] ^ _ \``, or
+ /// - U+007B ... U+007E `{ | } ~`
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_punctuation(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_punctuation())
+ }
+
+ /// Checks if all bytes of this slice are ASCII graphic characters:
+ /// U+0021 '@' ... U+007E '~'.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_graphic(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_graphic())
+ }
+
+ /// Checks if all bytes of this slice are ASCII whitespace characters:
+ /// U+0020 SPACE, U+0009 HORIZONTAL TAB, U+000A LINE FEED,
+ /// U+000C FORM FEED, or U+000D CARRIAGE RETURN.
+ ///
+ /// 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
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_whitespace(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_whitespace())
+ }
+
+ /// Checks if all bytes of this slice are ASCII control characters:
+ ///
+ /// - U+0000 NUL ... U+001F UNIT SEPARATOR, or
+ /// - U+007F DELETE.
+ ///
+ /// Note that most ASCII whitespace characters are control
+ /// characters, but SPACE is not.
+ #[unstable(feature = "ascii_ctype", issue = "39658")]
+ #[inline]
+ pub fn is_ascii_control(&self) -> bool {
+ self.iter().all(|b| b.is_ascii_control())
+ }
+}
+
////////////////////////////////////////////////////////////////////////////////
// Extension traits for slices over specific kinds of data
////////////////////////////////////////////////////////////////////////////////
projects / rustc.git / blobdiff