194 lines
8.2 KiB
Plaintext
194 lines
8.2 KiB
Plaintext
This document details the changes between this version, readline-4.0,
|
|
and the previous version, readline-2.2.
|
|
|
|
1. Changes to Readline
|
|
|
|
a. The version number is now 4.0, to match the major and minor version
|
|
numbers on the shared readline and history libraries. Future
|
|
releases will maintain the identical numbering.
|
|
|
|
b. Fixed a typo in the `make install' recipe that copied libreadline.a
|
|
to libhistory.old right after installing it.
|
|
|
|
c. The readline and history info files are now installed out of the source
|
|
directory if they are not found in the build directory.
|
|
|
|
d. The library no longer exports a function named `savestring' -- backwards
|
|
compatibility be damned.
|
|
|
|
e. There is no longer any #ifdef SHELL code in the source files.
|
|
|
|
f. Some changes were made to the key binding code to fix memory leaks and
|
|
better support Win32 systems.
|
|
|
|
g. Fixed a silly typo in the paren matching code -- it's microseconds, not
|
|
milliseconds.
|
|
|
|
h. The readline library should be compilable by C++ compilers.
|
|
|
|
i. The readline.h public header file now includes function prototypes for
|
|
all readline functions, and some changes were made to fix errors in the
|
|
source files uncovered by the use of prototypes.
|
|
|
|
j. The maximum numeric argument is now clamped at 1000000.
|
|
|
|
k. Fixes to rl_yank_last_arg to make it behave better.
|
|
|
|
l. Fixed a bug in the display code that caused core dumps if the prompt
|
|
string length exceeded 1024 characters.
|
|
|
|
m. The menu completion code was fixed to properly insert a single completion
|
|
if there is only one match.
|
|
|
|
n. A bug was fixed that caused the display code to improperly display tabs
|
|
after newlines.
|
|
|
|
o. A fix was made to the completion code in which a typo caused the wrong
|
|
value to be passed to the function that computed the longest common
|
|
prefix of the list of matches.
|
|
|
|
p. The completion code now checks the value of rl_filename_completion_desired,
|
|
which is set by application-supplied completion functions to indicate
|
|
that filename completion is being performed, to decide whether or not to
|
|
call an application-supplied `ignore completions' function.
|
|
|
|
q. Code was added to the history library to catch history substitutions
|
|
using `&' without a previous history substitution or search having been
|
|
performed.
|
|
|
|
|
|
2. New Features in Readline
|
|
|
|
a. There is a new script, support/shobj-conf, to do system-specific shared
|
|
object and library configuration. It generates variables for configure
|
|
to substitute into makefiles. The README file provides a detailed
|
|
explanation of the shared library creation process.
|
|
|
|
b. Shared libraries and objects are now built in the `shlib' subdirectory.
|
|
There is a shlib/Makefile.in to control the build process. `make shared'
|
|
from the top-level directory is still the right way to build shared
|
|
versions of the libraries.
|
|
|
|
c. rlconf.h is now installed, so applications can find out which features
|
|
have been compiled into the installed readline and history libraries.
|
|
|
|
d. rlstdc.h is now an installed header file.
|
|
|
|
e. Many changes to the signal handling:
|
|
o Readline now catches SIGQUIT and cleans up the tty before returning;
|
|
o A new variable, rl_catch_signals, is available to application writers
|
|
to indicate to readline whether or not it should install its own
|
|
signal handlers for SIGINT, SIGTERM, SIGQUIT, SIGALRM, SIGTSTP,
|
|
SIGTTIN, and SIGTTOU;
|
|
o A new variable, rl_catch_sigwinch, is available to application
|
|
writers to indicate to readline whether or not it should install its
|
|
own signal handler for SIGWINCH, which will chain to the calling
|
|
applications's SIGWINCH handler, if one is installed;
|
|
o There is a new function, rl_free_line_state, for application signal
|
|
handlers to call to free up the state associated with the current
|
|
line after receiving a signal;
|
|
o There is a new function, rl_cleanup_after_signal, to clean up the
|
|
display and terminal state after receiving a signal;
|
|
o There is a new function, rl_reset_after_signal, to reinitialize the
|
|
terminal and display state after an application signal handler
|
|
returns and readline continues
|
|
|
|
f. There is a new function, rl_resize_terminal, to reset readline's idea of
|
|
the screen size after a SIGWINCH.
|
|
|
|
g. New public functions: rl_save_prompt and rl_restore_prompt. These were
|
|
previously private functions with a `_' prefix. These functions are
|
|
used when an application wants to write a message to the `message area'
|
|
with rl_message and have the prompt restored correctly when the message
|
|
is erased.
|
|
|
|
h. New function hook: rl_pre_input_hook, called just before readline starts
|
|
reading input, after initialization.
|
|
|
|
i. New function hook: rl_display_matches_hook, called when readline would
|
|
display the list of completion matches. The new function
|
|
rl_display_match_list is what readline uses internally, and is available
|
|
for use by application functions called via this hook.
|
|
|
|
j. New bindable function, delete-char-or-list, like tcsh.
|
|
|
|
k. A new variable, rl_erase_empty_line, which, if set by an application using
|
|
readline, will cause readline to erase, prompt and all, lines on which the
|
|
only thing typed was a newline.
|
|
|
|
l. There is a new script, support/shlib-install, to install and uninstall
|
|
the shared readline and history libraries.
|
|
|
|
m. A new bindable variable, `isearch-terminators', which is a string
|
|
containing the set of characters that should terminate an incremental
|
|
search without being executed as a command.
|
|
|
|
n. A new bindable function, forward-backward-delete-char.
|
|
|
|
-------------------------------------------------------------------------------
|
|
This document details the changes between this version, readline-2.2,
|
|
and the previous version, readline-2.1.
|
|
|
|
1. Changes to Readline
|
|
|
|
a. Added a missing `extern' to a declaration in readline.h that kept
|
|
readline from compiling cleanly on some systems.
|
|
|
|
b. The history file is now opened with mode 0600 when it is written for
|
|
better security.
|
|
|
|
c. Changes were made to the SIGWINCH handling code so that prompt redisplay
|
|
is done better.
|
|
|
|
d. ^G now interrupts incremental searches correctly.
|
|
|
|
e. A bug that caused a core dump when the set of characters to be quoted
|
|
when completing words was empty was fixed.
|
|
|
|
f. Fixed a problem in the readline test program rltest.c that caused a core
|
|
dump.
|
|
|
|
g. The code that handles parser directives in inputrc files now displays
|
|
more error messages.
|
|
|
|
h. The history expansion code was fixed so that the appearance of the
|
|
history comment character at the beginning of a word inhibits history
|
|
expansion for that word and the rest of the input line.
|
|
|
|
i. The code that prints completion listings now behaves better if one or
|
|
more of the filenames contains non-printable characters.
|
|
|
|
j. The time delay when showing matching parentheses is now 0.5 seconds.
|
|
|
|
|
|
2. New Features in Readline
|
|
|
|
a. There is now an option for `iterative' yank-last-arg handline, so a user
|
|
can keep entering `M-.', yanking the last argument of successive history
|
|
lines.
|
|
|
|
b. New variable, `print-completions-horizontally', which causes completion
|
|
matches to be displayed across the screen (like `ls -x') rather than up
|
|
and down the screen (like `ls').
|
|
|
|
c. New variable, `completion-ignore-case', which causes filename completion
|
|
and matching to be performed case-insensitively.
|
|
|
|
d. There is a new bindable command, `magic-space', which causes history
|
|
expansion to be performed on the current readline buffer and a space to
|
|
be inserted into the result.
|
|
|
|
e. There is a new bindable command, `menu-complete', which enables tcsh-like
|
|
menu completion (successive executions of menu-complete insert a single
|
|
completion match, cycling through the list of possible completions).
|
|
|
|
f. There is a new bindable command, `paste-from-clipboard', for use on Win32
|
|
systems, to insert the text from the Win32 clipboard into the editing
|
|
buffer.
|
|
|
|
g. The key sequence translation code now understands printf-style backslash
|
|
escape sequences, including \NNN octal escapes. These escape sequences
|
|
may be used in key sequence definitions or macro values.
|
|
|
|
h. An `$include' inputrc file parser directive has been added.
|