Module rustc_lexer::unescape

Utilities for validating string and char literals and turning them into values they represent.

Enums

• EscapeError
  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.
• MixedUnit
  Used for mixed utf8 string literals, i.e. those that allow both unicode chars and high bytes.
• Mode
  What kind of literal do we parse.

Functions

• ascii_check 🔒
• byte_from_char
• check_raw_common 🔒
  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 🔒
• scan_unicode 🔒
• skip_ascii_whitespace 🔒
• unescape_byte
  Takes a contents of a byte literal (without quotes), and returns an unescaped byte or an error.
• unescape_char
  Takes a contents of a char literal (without quotes), and returns an unescaped char or an error.
• unescape_char_or_byte 🔒
• unescape_mixed
  Takes the contents of a mixed-utf8 literal (without quotes) and produces a sequence of escaped characters or errors.
• unescape_non_raw_common 🔒
  Takes a contents of a string literal (without quotes) and produces a sequence of escaped characters or errors.
• unescape_unicode
  Takes the contents of a unicode-only (non-mixed-utf8) literal (without quotes) and produces a sequence of escaped characters or errors.