Module rustc_lexer::unescape
source ยท Expand description
Utilities for validating string and char literals and turning them into values they represent.
Enumsยง
- Errors and warnings that can occur during string unescaping. They mostly relate to malformed escape sequences, but there are a few that are about other problems.
- Used for mixed utf8 string literals, i.e. those that allow both unicode chars and high bytes.
- What kind of literal do we parse.
Functionsยง
- ascii_
check ๐ - check_
raw_ ๐common Takes a contents of a string literal (without quotes) and produces a sequence of characters or errors. NOTE: Raw strings do not perform any explicit character escaping, here we only produce errors on bare CR. - scan_
escape ๐ - scan_
unicode ๐ - Takes a contents of a byte literal (without quotes), and returns an unescaped byte or an error.
- Takes a contents of a char literal (without quotes), and returns an unescaped char or an error.
- Takes the contents of a mixed-utf8 literal (without quotes) and produces a sequence of escaped characters or errors.
- Takes a contents of a string literal (without quotes) and produces a sequence of escaped characters or errors.
- Takes the contents of a unicode-only (non-mixed-utf8) literal (without quotes) and produces a sequence of escaped characters or errors.