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@@ -1,3 +1,126 @@ +This document details the changes between this version, readline-8.1, and +the previous version, readline-8.0. + +1. Changes to Readline + +a. There are a number of fixes that were found as the result of fuzzing with + random input. + +b. Changed the revert-all-at-newline behavior to make sure to start at the end + of the history list when doing it, instead of the line where the user hit + return. + +c. When parsing `set' commands from the inputrc file or an application, readline + now allows trailing whitespace. + +d. Fixed a bug that left a file descriptor open to the history file if the + file size was 0. + +e. Fixed a problem with binding key sequences containing meta characters. + +f. Fixed a bug that caused the wrong line to be displayed if the user tried to + move back beyond the beginning of the history list, or forward past the end + of the history list. + +g. If readline catches SIGTSTP, it now sets a hook that allows the calling + application to handle it if it desires. + +h. Fixed a redisplay problem with a prompt string containing embedded newlines. + +i. Fixed a problem with completing filenames containing invalid multibyte + sequences when case-insensitive comparisons are enabled. + +j. Fixed a redisplay problem with prompt strings containing invisible multibyte + characters. + +k. Fixed a problem with multibyte characters mapped to editing commands that + modify the search string in incremental search. + +l. Fixed a bug with maintaining the key sequence while resolving a bound + command in the presence of ambiguous sequences (sequences with a common + prefix), in most cases while attempting to unbind it. + +m. Fixed several buffer overflows found as the result of fuzzing. + +n. Reworked backslash handling when translating key sequences for key binding + to be more uniform and consistent, which introduces a slight backwards + incompatibility. + +o. Fixed a bug with saving the history that resulted in errors not being + propagated to the calling application when the history file is not writable. + +p. Readline only calls chown(2) on a newly-written history file if it really + needs to, instead of having it be a no-op. + +q. Readline now behaves better when operate-and-get-next is used when the + history list is `full': when there are already $HISTSIZE entries. + +r. Fixed a bug that could cause vi redo (`.') of a replace command not to work + correctly in the C or POSIX locale. + +s. Fixed a bug with vi-mode digit arguments that caused the last command to be + set incorrectly. This prevents yank-last-arg from working as intended, for + example. + +t. Make sure that all undo groups are closed when leaving vi insertion mode. + +u. Make sure that the vi-mode `C' and `c' commands enter insert mode even if + the motion command doesn't have any effect. + +v. Fixed several potential memory leaks in the callback mode context handling. + +w. If readline is handling a SIGTTOU, make sure SIGTTOU is blocked while + executing the terminal cleanup code, since it's no longer run in a signal + handling context. + +x. Fixed a bug that could cause an application with an application-specific + redisplay function to crash if the line data structures had not been + initialized. + +y. Terminals that are named "dumb" or unknown do not enable bracketed paste + by default. + +z. Ensure that disabling bracketed paste turns off highlighting the incremental + search string when the search is successful. + +2. New Features in Readline + +a. If a second consecutive completion attempt produces matches where the first + did not, treat it as a new completion attempt and insert a match as + appropriate. + +b. Bracketed paste mode works in more places: incremental search strings, vi + overstrike mode, character search, and reading numeric arguments. + +c. Readline automatically switches to horizontal scrolling if the terminal has + only one line. + +d. Unbinding all key sequences bound to a particular readline function now + descends into keymaps for multi-key sequences. + +e. rl-clear-display: new bindable command that clears the screen and, if + possible, the scrollback buffer (bound to emacs mode M-C-l by default). + +f. New active mark and face feature: when enabled, it will highlight the text + inserted by a bracketed paste (the `active region') and the text found by + incremental and non-incremental history searches. This is tied to bracketed + paste and can be disabled by turning off bracketed paste. + +g. Readline sets the mark in several additional commands. + +h. Bracketed paste mode is enabled by default. There is a configure-time + option (--enable-bracketed-paste-default) to set the default to on or off. + +i. Readline tries to take advantage of the more regular structure of UTF-8 + characters to identify the beginning and end of characters when moving + through the line buffer. + +j. The bindable operate-and-get-next command (and its default bindings) are + now part of readline instead of a bash-specific addition. + +k. The signal cleanup code now blocks SIGINT while processing after a SIGINT. + +------------------------------------------------------------------------------- This document details the changes between this version, readline-8.0, and the previous version, readline-7.0. |