1
This document details the changes between this version, readline-4.0,
2
and the previous version, readline-2.2.
6
a. The version number is now 4.0, to match the major and minor version
7
numbers on the shared readline and history libraries. Future
8
releases will maintain the identical numbering.
10
b. Fixed a typo in the `make install' recipe that copied libreadline.a
11
to libhistory.old right after installing it.
13
c. The readline and history info files are now installed out of the source
14
directory if they are not found in the build directory.
16
d. The library no longer exports a function named `savestring' -- backwards
17
compatibility be damned.
19
e. There is no longer any #ifdef SHELL code in the source files.
21
f. Some changes were made to the key binding code to fix memory leaks and
22
better support Win32 systems.
24
g. Fixed a silly typo in the paren matching code -- it's microseconds, not
27
h. The readline library should be compilable by C++ compilers.
29
i. The readline.h public header file now includes function prototypes for
30
all readline functions, and some changes were made to fix errors in the
31
source files uncovered by the use of prototypes.
33
j. The maximum numeric argument is now clamped at 1000000.
35
k. Fixes to rl_yank_last_arg to make it behave better.
37
l. Fixed a bug in the display code that caused core dumps if the prompt
38
string length exceeded 1024 characters.
40
m. The menu completion code was fixed to properly insert a single completion
41
if there is only one match.
43
n. A bug was fixed that caused the display code to improperly display tabs
46
o. A fix was made to the completion code in which a typo caused the wrong
47
value to be passed to the function that computed the longest common
48
prefix of the list of matches.
50
p. The completion code now checks the value of rl_filename_completion_desired,
51
which is set by application-supplied completion functions to indicate
52
that filename completion is being performed, to decide whether or not to
53
call an application-supplied `ignore completions' function.
55
q. Code was added to the history library to catch history substitutions
56
using `&' without a previous history substitution or search having been
60
2. New Features in Readline
62
a. There is a new script, support/shobj-conf, to do system-specific shared
63
object and library configuration. It generates variables for configure
64
to substitute into makefiles. The README file provides a detailed
65
explanation of the shared library creation process.
67
b. Shared libraries and objects are now built in the `shlib' subdirectory.
68
There is a shlib/Makefile.in to control the build process. `make shared'
69
from the top-level directory is still the right way to build shared
70
versions of the libraries.
72
c. rlconf.h is now installed, so applications can find out which features
73
have been compiled into the installed readline and history libraries.
75
d. rlstdc.h is now an installed header file.
77
e. Many changes to the signal handling:
78
o Readline now catches SIGQUIT and cleans up the tty before returning;
79
o A new variable, rl_catch_signals, is available to application writers
80
to indicate to readline whether or not it should install its own
81
signal handlers for SIGINT, SIGTERM, SIGQUIT, SIGALRM, SIGTSTP,
83
o A new variable, rl_catch_sigwinch, is available to application
84
writers to indicate to readline whether or not it should install its
85
own signal handler for SIGWINCH, which will chain to the calling
86
applications's SIGWINCH handler, if one is installed;
87
o There is a new function, rl_free_line_state, for application signal
88
handlers to call to free up the state associated with the current
89
line after receiving a signal;
90
o There is a new function, rl_cleanup_after_signal, to clean up the
91
display and terminal state after receiving a signal;
92
o There is a new function, rl_reset_after_signal, to reinitialize the
93
terminal and display state after an application signal handler
94
returns and readline continues
96
f. There is a new function, rl_resize_terminal, to reset readline's idea of
97
the screen size after a SIGWINCH.
99
g. New public functions: rl_save_prompt and rl_restore_prompt. These were
100
previously private functions with a `_' prefix. These functions are
101
used when an application wants to write a message to the `message area'
102
with rl_message and have the prompt restored correctly when the message
105
h. New function hook: rl_pre_input_hook, called just before readline starts
106
reading input, after initialization.
108
i. New function hook: rl_display_matches_hook, called when readline would
109
display the list of completion matches. The new function
110
rl_display_match_list is what readline uses internally, and is available
111
for use by application functions called via this hook.
113
j. New bindable function, delete-char-or-list, like tcsh.
115
k. A new variable, rl_erase_empty_line, which, if set by an application using
116
readline, will cause readline to erase, prompt and all, lines on which the
117
only thing typed was a newline.
119
l. There is a new script, support/shlib-install, to install and uninstall
120
the shared readline and history libraries.
122
m. A new bindable variable, `isearch-terminators', which is a string
123
containing the set of characters that should terminate an incremental
124
search without being executed as a command.
126
n. A new bindable function, forward-backward-delete-char.
128
-------------------------------------------------------------------------------
129
This document details the changes between this version, readline-2.2,
130
and the previous version, readline-2.1.
132
1. Changes to Readline
134
a. Added a missing `extern' to a declaration in readline.h that kept
135
readline from compiling cleanly on some systems.
137
b. The history file is now opened with mode 0600 when it is written for
140
c. Changes were made to the SIGWINCH handling code so that prompt redisplay
143
d. ^G now interrupts incremental searches correctly.
145
e. A bug that caused a core dump when the set of characters to be quoted
146
when completing words was empty was fixed.
148
f. Fixed a problem in the readline test program rltest.c that caused a core
151
g. The code that handles parser directives in inputrc files now displays
154
h. The history expansion code was fixed so that the appearance of the
155
history comment character at the beginning of a word inhibits history
156
expansion for that word and the rest of the input line.
158
i. The code that prints completion listings now behaves better if one or
159
more of the filenames contains non-printable characters.
161
j. The time delay when showing matching parentheses is now 0.5 seconds.
164
2. New Features in Readline
166
a. There is now an option for `iterative' yank-last-arg handline, so a user
167
can keep entering `M-.', yanking the last argument of successive history
170
b. New variable, `print-completions-horizontally', which causes completion
171
matches to be displayed across the screen (like `ls -x') rather than up
172
and down the screen (like `ls').
174
c. New variable, `completion-ignore-case', which causes filename completion
175
and matching to be performed case-insensitively.
177
d. There is a new bindable command, `magic-space', which causes history
178
expansion to be performed on the current readline buffer and a space to
179
be inserted into the result.
181
e. There is a new bindable command, `menu-complete', which enables tcsh-like
182
menu completion (successive executions of menu-complete insert a single
183
completion match, cycling through the list of possible completions).
185
f. There is a new bindable command, `paste-from-clipboard', for use on Win32
186
systems, to insert the text from the Win32 clipboard into the editing
189
g. The key sequence translation code now understands printf-style backslash
190
escape sequences, including \NNN octal escapes. These escape sequences
191
may be used in key sequence definitions or macro values.
193
h. An `$include' inputrc file parser directive has been added.
added
removed
readline-4.0/CHANGES
