| use std::fmt; |
| use std::fmt::Formatter; |
| use std::str; |
| |
| pub(crate) use crate::util::is_continuation; |
| |
| pub(crate) fn decode_code_point(string: &[u8]) -> u32 { |
| let string = str::from_utf8(string).expect("invalid string"); |
| let mut chars = string.chars(); |
| let ch = chars |
| .next() |
| .expect("cannot parse code point from empty string"); |
| assert_eq!(None, chars.next(), "multiple code points found"); |
| ch.into() |
| } |
| |
| pub(crate) fn ends_with(string: &[u8], suffix: &[u8]) -> bool { |
| string.ends_with(suffix) |
| } |
| |
| pub(crate) fn starts_with(string: &[u8], prefix: &[u8]) -> bool { |
| string.starts_with(prefix) |
| } |
| |
| pub(crate) fn debug(string: &[u8], _: &mut Formatter<'_>) -> fmt::Result { |
| assert!(string.is_empty()); |
| Ok(()) |
| } |
| |
| #[cfg(feature = "uniquote")] |
| pub(crate) mod uniquote { |
| use uniquote::Formatter; |
| use uniquote::Quote; |
| use uniquote::Result; |
| |
| pub(crate) fn escape(string: &[u8], f: &mut Formatter<'_>) -> Result { |
| string.escape(f) |
| } |
| } |