yash-syntax-0.9.0

[0.9.0] - 2024-06-09

Added

• parser::SyntaxError::RedundantToken variant
• parser::lex::ParseOperatorError struct

Changed

• Implementations of FromStr for syntactic elements like Assign and
  SimpleCommand now fails with SyntaxError::RedundantToken if the input
  string contains a token that is not part of the element.
• Lexer::source_string is no longer generic. The argument type is now
  Range<usize> instead of a generic implementor of
  SliceIndex<[SourceChar], Output = [SourceChar]>.
• Word::parse_tilde_front no longer delimits the tilde expansion at an
  unquoted : character.
• WordLexer::braced_param now returns Err(SyntaxError::EmptyParam) if {
  is not followed by any name characters. Previously, it returned
  Err(SyntaxError::UnclosedParam{…}) if { was followed by a non-name
  character other than }.
• impl std::fmt::Display for SimpleCommand now prints the command words
  after the redirections if there are no assignments and the first word looks
  like a keyword.
• TryFromOperatorError is now a unit struct rather than an empty normal
  struct.

Fixed

• A newline after a bar in a pipeline was not parsed correctly if it appeared as
  a result of alias substitution.
• Alias substitution was not performed as expected for a token that follows a
  result of blank-ending alias substitution if there is a line continuation
  between them.
• Character location indexes were not calculated correctly after an alias
  substitution changed the length of the source code.