readline-8.3

[Bruce Dubbs]

New minor version.

[Bruce Dubbs]

1. Changes to Readline

   a. Fixed a bug in clearing the visible line structure before redisplay.
   
   b. Fix a bug where setlocale(3) returning NULL caused a crash.
   
   c. Fixed signal checking in callback mode to handle signals that arrive before
      readline restore's the application's signal handlers.
   
   d. Fixed a bug with word completion where the directory name needs to be
      dequoted and tilde-expanded.
   
   e. Fixed a bug that caused compilation to fail on systems with select but not
      pselect.
   
   f. System-specific changes for: WIN32, z/OS, Cygwin, MSYS
   
   g. Fixed a bug that caused word completion mismatches if the quoted text the
      user typed was longer than the unquoted match.
   
   h. Fixes for freeing undo lists that might appear in history list entries
      after non-incremental searches.
   
   i. Fixes for some errors revealed by address sanitizer.
   
   j. In vi mode, if an `f' or `F' move command associated with a `c' or `C'
      command fails, don't enter insert mode.
   
   k. Fixed bug with truncating a history file containing timestamps that caused
      the timestamp associated with the first history entry not to be written.
   
   l. Fix vi-mode so that a motion command attached to d/D, y/Y, or t/T must
      consume or delete at least one character.
   
   m. Fix a redisplay error when displaying meta characters as octal sequences
      and other C locale issues.
   
   n. Fix error that caused characters composing an incomplete multibyte
      character not to be inserted into the line.
   
   o. In callback mode, let the application echo the signal characters (e.g., ^C)
      when the application's signal handlers are installed.
   
   p. Added some support for lines that consume more than the physical number of
      screen lines.
   
   q. Make sure dump-variables returns the string values for active-region-start-color
      and active-region-end-color if they're set.
   
   r. Fixes to how characters between 128 and 159 are printed when displaying
      macro values (use symbolic notation instead of directly printing the
      character).
   
   s. Don't convert meta characters that contain NULL (\M-\C-@) to actual NULs,
      which prematurely terminates the macro value.
   
   t. Fix typo in the readline color prefix extension that it uses for coloring
      filename prefixes when displaying possible completions.
   
   u. Call the filename rewrite hook on the word being completed before comparing
      it against possible completions from the file system to get consistent
      strings.
   
   v. Fix infinite recursion that can happen if someone binds a key that doesn't
      have a different upper and lower case represenation to do-lowercase-version.
   
   w. Check for non-ANSI (dumb) terminals a little more thoroughly.
   
   x. Don't attempt to history-expand the `quick substitution' character at the
      beginning of a line if the application has set the quoting state to single
      quotes.
   
   y. Fix small memory leak if non-incremental or incremental search is
      interrupted by a signal.
   
   z. Loading very large history files should be much faster.
   
   aa. Retry opening startup files if the open is interrupted by a signal
       and is not automatically restarted.
   
   bb. Make sure the bracketed-paste input buffer is null-terminated when read
       returns an error.
   
   cc. Fixed a small memory leak in execute-named-command if the command doesn't
       exist or the function doesn't return.
       
   dd. Fix for attempting to change case of invalid multibyte characters.
   
   ee. Fix for possible completions that compare identically when using case-
       insensitive completion but have different byte lengths.
       
   ff. Fix to make non-incremental searches use undo lists and set the history
       position the same way as incremental searches.
       
   gg. Don't check for signals when handling a received signal.
      
   hh. Fix off-by-one error when tokenizing words like $((expr)) while performing
       history expansion.
      
   ii. Fixes for incremental searches and redisplay in the C locale.
   
   jj. Fixes for some use-after-free of the undo list errors when stacking multiple
       commands that use rl_maybe_replace_line to save changes to a history entry.
      
   kk. Fixes to ensure that completion-prefix-display-length and
       colored-completion-prefix are mutually exclusive.
   
   ll. Fixed a bug that allowed a history search to change the current history
       list position.
   
   mm. Fixed a bug that allowed ^G to retain a saved command to execute.
   
   nn. Updates to new export-completions command to allow filename suffixes.
   
   oo. Fixed a redisplay bug with prompts containing multiple sequences of
       invisible characters that are longer than the screen width.
   
   pp. The history library no longer skips blank lines while it is reading a
       multiline history entry from a history file.
   
   2. New Features in Readline
   
   a. Output a newline if there is no prompt and readline reads an empty line.
   
   b. The history library falls back to stdio when writing the history list if
      mmap fails.
   
   c. New bindable variable `search-ignore-case', causes readline to perform
      case-insensitive incremental and non-incremental history searches.
   
   d. rl_full_quoting_desired: new application-settable variable, causes all
      completions to be quoted as if they were filenames.
   
   e. rl_macro_display_hook: new application-settable function pointer, used if
      the application wants to print macro values itself instead of letting
      readline do it
   
   f. rl_reparse_colors: new application-callable function, reparses $LS_COLORS
      (presumably after the user changes it)
   
   g. rl_completion_rewrite_hook: new application-settable function pointer,
      called to modify the word being completed before comparing it against
      pathnames from the file system.
   
   h. execute-named-command: a new bindable command that reads the name of a
      readline command from the standard input and executes it. Bound to M-x
      in emacs mode by default.
   i. Incremental and non-incremental searches now allow ^V/^Q (or, in the former
      case, anything bound to quoted-insert) to quote characters in the search
      string.
   
   j. Documentation has been significantly updated.
   
   k. New `force-meta-prefix' bindable variable, which forces the use of ESC as
      the meta prefix when using "\M-" in key bindings instead of overloading
      convert-meta.
   
   l. The default value for `readline-colored-completion-prefix' no longer has a
      leading `.'; the original report was based on a misunderstanding.
   
   m. There is a new bindable command, `export-completions', which writes the
      possible completions for a word to the standard output in a defined format.
   
   n. Readline can reset its idea of the screen dimensions when executing after
      a SIGCONT.