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Annotation of embedaddon/readline/CHANGES, revision 1.1.1.1

1.1 misho 1: This document details the changes between this version, readline-6.3, and the
2: previous version, readline-6.2.
3:
4: 1. Changes to Readline
5:
6: a. Fixed a bug that did not allow the `dd', `cc', or `yy' vi editing mode
7: commands to work on the entire line.
8:
9: b. Fixed a bug that caused redisplay problems with prompts longer than 128
10: characters and history searches.
11:
12: c. Fixed a bug that caused readline to try and run code to modify its idea
13: of the screen size in a signal handler context upon receiving a SIGWINCH.
14:
15: d. Fixed a bug that caused the `meta' key to be enabled beyond the duration
16: of an individual call top readline().
17:
18: e. Added a workaround for a wcwidth bug in Mac OS X that caused readline's
19: redisplay to mishandle zero-width combining characters.
20:
21: f. Fixed a bug that caused readline to `forget' part of a key sequence when
22: a multiple-key sequence caused it to break out of an incremental search.
23:
24: g. Fixed bugs that caused readline to execute code in a signal handler
25: context if interrupted while reading from the file system during completion.
26:
27: h. Fixed a bug that caused readline to `forget' part of a key sequence when
28: reading an unbound multi-character key sequence.
29:
30: i. Fixed a bug that caused Readline's signal handlers to be installed beyond
31: the bounds of a single call to readline().
32:
33: j. Fixed a bug that caused the `.' command to not redo the most recent `R'
34: command in vi mode.
35:
36: k. Fixed a bug that caused ignoring case in completion matches to result in
37: readline using the wrong match.
38:
39: l. Paren matching now works in vi insert mode.
40:
41: m. Fix menu-completion to make show-all-if-ambiguous and menu-complete-display-prefix
42: work together.
43:
44: n. Fixed a bug that didn't allow the `cc', `dd', or `yy' commands to be redone
45: in vi editing mode.
46:
47: o. Fixed a bug that caused the filename comparison code to not compare
48: multibyte characters correctly when using case-sensitive or case-mapping
49: comparisons.
50:
51: p. Fixed the input reading loop to call the input hook function only when there
52: is no terminal input available.
53:
54: q. Fixed a bug that caused binding a macro to a multi-character key sequence
55: where the sequence and macro value share a common prefix to not perform
56: the macro replacement.
57:
58: r. Fixed several redisplay errors with multibyte characters and prompts
59: containing invisible characters when using horizontal scrolling.
60:
61: s. Fixed a bug that caused redisplay errors when trying to overwrite
62: existing characters using multibyte characters.
63:
64: t. Fixed a bug in vi mode that caused the arrow keys to set the saved last
65: vi-mode command to the wrong value.
66:
67: u. Fixed a bug that caused double-quoted strings to be scanned incorrectly
68: when being used as the value of a readline variable assignment.
69:
70: v. Fixed a bug with vi mode that prevented `.' from repeating a command
71: entered on a previous line (command).
72:
73: w. Fixed a bug that could cause completion to core dump if it was interrupted
74: by a signal.
75:
76: x. Fixed a bug that could cause readline to crash and seg fault attempting to
77: expand an empty history entry.
78:
79: y. Fixed a bug that caused display problems with multi-line prompts containing
80: invisible characters on multiple lines.
81:
82: z. Fixed a bug that caused effects made by undoing changes to a history line to
83: be discarded.
84:
85: 2. New Features in Readline
86:
87: a. Readline is now more responsive to SIGHUP and other fatal signals when
88: reading input from the terminal or performing word completion but no
89: longer attempts to run any not-allowable functions from a signal handler
90: context.
91:
92: b. There are new bindable commands to search the history for the string of
93: characters between the beginning of the line and the point
94: (history-substring-search-forward, history-substring-search-backward)
95:
96: c. Readline allows quoted strings as the values of variables when setting
97: them with `set'. As a side effect, trailing spaces and tabs are ignored
98: when setting a string variable's value.
99:
100: d. The history library creates a backup of the history file when writing it
101: and restores the backup on a write error.
102:
103: e. New application-settable variable: rl_filename_stat_hook: a function called
104: with a filename before using it in a call to stat(2). Bash uses it to
105: expand shell variables so things like $HOME/Downloads have a slash
106: appended.
107:
108: f. New bindable function `print-last-kbd-macro', prints the most-recently-
109: defined keyboard macro in a reusable format.
110:
111: g. New user-settable variable `colored-stats', enables use of colored text
112: to denote file types when displaying possible completions (colored analog
113: of visible-stats).
114:
115: h. New user-settable variable `keyseq-timout', acts as an inter-character
116: timeout when reading input or incremental search strings.
117:
118: i. New application-callable function: rl_clear_history. Clears the history list
119: and frees all readline-associated private data.
120:
121: j. New user-settable variable, show-mode-in-prompt, adds a characters to the
122: beginning of the prompt indicating the current editing mode.
123:
124: k. New application-settable variable: rl_input_available_hook; function to be
125: called when readline needs to check whether there is data available on its
126: input source. The default hook checks rl_instream.
127:
128: l. Readline calls an application-set event hook (rl_signal_event_hook) after
129: it gets a signal while reading input (read returns -1/EINTR but readline
130: does not handle the signal immediately) to allow the application to handle
131: or otherwise note it. Not currently called for SIGHUP or SIGTERM.
132:
133: m. If the user-settable variable `history-size' is set to a value less than
134: 0, the history list size is unlimited.
135:
136: n. When creating shared libraries on Mac OS X, the pathname written into the
137: library (install_name) no longer includes the minor version number.
138:
139: -------------------------------------------------------------------------------
140: This document details the changes between this version, readline-6.2,
141: and the previous version, readline-6.1.
142:
143: 1. Changes to Readline
144:
145: a. Fixed a bug that caused the unconverted filename to be added to the list of
146: completions when the application specified filename conversion functions.
147:
148: b. Fixed a bug that caused the wrong filename to be passed to opendir when the
149: application has specified a filename dequoting function.
150:
151: c. Fixed a bug when repeating a character search in vi mode in the case where
152: there was no search to repeat.
153:
154: d. When show-all-if-ambiguous is set, the completion routines no longer insert
155: a common match prefix that is shorter than the text being completed.
156:
157: e. The full set of vi editing commands may now be used in callback mode.
158:
159: f. Fixed a bug that caused readline to not update its idea of the terminal
160: dimensions while running in `no-echo' mode.
161:
162: h. Fixed a bug that caused readline to dump core if an application called
163: rl_prep_terminal without setting rl_instream.
164:
165: i. Fixed a bug that caused meta-prefixed characters bound to incremental
166: search forward or backward to not be recognized if they were typed
167: subsequently.
168:
169: j. The incremental search code treats key sequences that map to the same
170: functions as (default) ^G, ^W, and ^Y as equivalent to those characters.
171:
172: k. Fixed a bug in menu-complete that caused it to misbehave with large
173: negative argument.
174:
175: l. Fixed a bug that caused vi-mode yank-last-arg to ring the bell when invoked
176: at the end of the line.
177:
178: m. Fixed a bug that made an explicit argument of 0 to yank-last-arg behave
179: as if it were a negative argument.
180:
181: n. Fixed a bug that caused directory names in words to be completed to not
182: be dequoted correctly.
183:
184: 2. New Features in Readline
185:
186: a. The history library does not try to write the history filename in the
187: current directory if $HOME is unset. This closes a potential security
188: problem if the application does not specify a history filename.
189:
190: b. New bindable variable `completion-display-width' to set the number of
191: columns used when displaying completions.
192:
193: c. New bindable variable `completion-case-map' to cause case-insensitive
194: completion to treat `-' and `_' as identical.
195:
196: d. There are new bindable vi-mode command names to avoid readline's case-
197: insensitive matching not allowing them to be bound separately.
198:
199: e. New bindable variable `menu-complete-display-prefix' causes the menu
200: completion code to display the common prefix of the possible completions
201: before cycling through the list, instead of after.
202:
203: -------------------------------------------------------------------------------
204: This document details the changes between this version, readline-6.1,
205: and the previous version, readline-6.0.
206:
207: 1. Changes to Readline
208:
209: a. The SIGWINCH signal handler now avoids calling the redisplay code if
210: one arrives while in the middle of redisplay.
211:
212: b. Changes to the timeout code to make sure that timeout values greater
213: than one second are handled better.
214:
215: c. Fixed a bug in the redisplay code that was triggered by a prompt
216: containing invisible characters exactly the width of the screen.
217:
218: d. Fixed a bug in the redisplay code encountered when running in horizontal
219: scroll mode.
220:
221: e. Fixed a bug that prevented menu completion from properly completing
222: filenames.
223:
224: f. Fixed a redisplay bug caused by a multibyte character causing a line to
225: wrap.
226:
227: g. Fixed a bug that caused key sequences of two characters to not be
228: recognized when a longer sequence identical in the first two characters
229: was bound.
230:
231: h. Fixed a bug that caused history expansion to be attempted on $'...'
232: single-quoted strings.
233:
234: i. Fixed a bug that caused incorrect redisplay when the prompt contained
235: multibyte characters in an `invisible' sequence bracketed by \[ and
236: \].
237:
238: j. Fixed a bug that caused history expansion to short-circuit after
239: encountering a multibyte character.
240:
241: k. Fixed a bug that caused applications using the callback interface to not
242: react to SIGINT (or other signals) until another character arrived.
243:
244: 2. New Features in Readline
245:
246: a. New bindable function: menu-complete-backward.
247:
248: b. In the vi insertion keymap, C-n is now bound to menu-complete by default,
249: and C-p to menu-complete-backward.
250:
251: c. When in vi command mode, repeatedly hitting ESC now does nothing, even
252: when ESC introduces a bound key sequence. This is closer to how
253: historical vi behaves.
254:
255: d. New bindable function: skip-csi-sequence. Can be used as a default to
256: consume key sequences generated by keys like Home and End without having
257: to bind all keys.
258:
259: e. New application-settable function: rl_filename_rewrite_hook. Can be used
260: to rewite or modify filenames read from the file system before they are
261: compared to the word to be completed.
262:
263: f. New bindable variable: skip-completed-text, active when completing in the
264: middle of a word. If enabled, it means that characters in the completion
265: that match characters in the remainder of the word are "skipped" rather
266: than inserted into the line.
267:
268: g. The pre-readline-6.0 version of menu completion is available as
269: "old-menu-complete" for users who do not like the readline-6.0 version.
270:
271: h. New bindable variable: echo-control-characters. If enabled, and the
272: tty ECHOCTL bit is set, controls the echoing of characters corresponding
273: to keyboard-generated signals.
274:
275: i. New bindable variable: enable-meta-key. Controls whether or not readline
276: sends the smm/rmm sequences if the terminal indicates it has a meta key
277: that enables eight-bit characters.
278:
279: -------------------------------------------------------------------------------
280: This document details the changes between this version, readline-6.0,
281: and the previous version, readline-5.2.
282:
283: 1. Changes to Readline
284:
285: a. Fixed a number of redisplay errors in environments supporting multibyte
286: characters.
287:
288: b. Fixed bugs in vi command mode that caused motion commands to inappropriately
289: set the mark.
290:
291: c. When using the arrow keys in vi insertion mode, readline allows movement
292: beyond the current end of the line (unlike command mode).
293:
294: d. Fixed bugs that caused readline to loop when the terminal has been taken
295: away and reads return -1/EIO.
296:
297: e. Fixed bugs in redisplay occurring when displaying prompts containing
298: invisible characters.
299:
300: f. Fixed a bug that caused the completion append character to not be reset to
301: the default after an application-specified completion function changed it.
302:
303: g. Fixed a problem that caused incorrect positioning of the cursor while in
304: emacs editing mode when moving forward at the end of a line while using
305: a locale supporting multibyte characters.
306:
307: h. Fixed an off-by-one error that caused readline to drop every 511th
308: character of buffered input.
309:
310: i. Fixed a bug that resulted in SIGTERM not being caught or cleaned up.
311:
312: j. Fixed redisplay bugs caused by multiline prompts with invisible characters
313: or no characters following the final newline.
314:
315: k. Fixed redisplay bug caused by prompts consisting solely of invisible
316: characters.
317:
318: l. Fixed a bug in the code that buffers characters received very quickly in
319: succession which caused characters to be dropped.
320:
321: m. Fixed a bug that caused readline to reference uninitialized data structures
322: if it received a SIGWINCH before completing initialzation.
323:
324: n. Fixed a bug that caused the vi-mode `last command' to be set incorrectly
325: and therefore unrepeatable.
326:
327: o. Fixed a bug that caused readline to disable echoing when it was being used
328: with an output file descriptor that was not a terminal.
329:
330: p. Readline now blocks SIGINT while manipulating internal data structures
331: during redisplay.
332:
333: q. Fixed a bug in redisplay that caused readline to segfault when pasting a
334: very long line (over 130,000 characters).
335:
336: r. Fixed bugs in redisplay when using prompts with no visible printing
337: characters.
338:
339: s. Fixed a bug that caused redisplay errors when using prompts with invisible
340: characters and numeric arguments to a command in a multibyte locale.
341:
342: t. Fixed a bug that caused redisplay errors when using prompts with invisible
343: characters spanning more than two physical screen lines.
344:
345: 2. New Features in Readline
346:
347: a. A new variable, rl_sort_completion_matches; allows applications to inhibit
348: match list sorting (but beware: some things don't work right if
349: applications do this).
350:
351: b. A new variable, rl_completion_invoking_key; allows applications to discover
352: the key that invoked rl_complete or rl_menu_complete.
353:
354: c. The functions rl_block_sigint and rl_release_sigint are now public and
355: available to calling applications who want to protect critical sections
356: (like redisplay).
357:
358: d. The functions rl_save_state and rl_restore_state are now public and
359: available to calling applications; documented rest of readline's state
360: flag values.
361:
362: e. A new user-settable variable, `history-size', allows setting the maximum
363: number of entries in the history list.
364:
365: f. There is a new implementation of menu completion, with several improvements
366: over the old; the most notable improvement is a better `completions
367: browsing' mode.
368:
369: g. The menu completion code now uses the rl_menu_completion_entry_function
370: variable, allowing applications to provide their own menu completion
371: generators.
372:
373: h. There is support for replacing a prefix of a pathname with a `...' when
374: displaying possible completions. This is controllable by setting the
375: `completion-prefix-display-length' variable. Matches with a common prefix
376: longer than this value have the common prefix replaced with `...'.
377:
378: i. There is a new `revert-all-at-newline' variable. If enabled, readline will
379: undo all outstanding changes to all history lines when `accept-line' is
380: executed.
381:
382: -------------------------------------------------------------------------------
383: This document details the changes between this version, readline-5.2,
384: and the previous version, readline-5.1.
385:
386: 1. Changes to Readline
387:
388: a. Fixed a problem that caused segmentation faults when using readline in
389: callback mode and typing consecutive DEL characters on an empty line.
390:
391: b. Fixed several redisplay problems with multibyte characters, all having to
392: do with the different code paths and variable meanings between single-byte
393: and multibyte character redisplay.
394:
395: c. Fixed a problem with key sequence translation when presented with the
396: sequence \M-\C-x.
397:
398: d. Fixed a problem that prevented the `a' command in vi mode from being
399: undone and redone properly.
400:
401: e. Fixed a problem that prevented empty inserts in vi mode from being undone
402: properly.
403:
404: f. Fixed a problem that caused readline to initialize with an incorrect idea
405: of whether or not the terminal can autowrap.
406:
407: g. Fixed output of key bindings (like bash `bind -p') to honor the setting of
408: convert-meta and use \e where appropriate.
409:
410: h. Changed the default filename completion function to call the filename
411: dequoting function if the directory completion hook isn't set. This means
412: that any directory completion hooks need to dequote the directory name,
413: since application-specific hooks need to know how the word was quoted,
414: even if no other changes are made.
415:
416: i. Fixed a bug with creating the prompt for a non-interactive search string
417: when there are non-printing characters in the primary prompt.
418:
419: j. Fixed a bug that caused prompts with invisible characters to be redrawn
420: multiple times in a multibyte locale.
421:
422: k. Fixed a bug that could cause the key sequence scanning code to return the
423: wrong function.
424:
425: l. Fixed a problem with the callback interface that caused it to fail when
426: using multi-character keyboard macros.
427:
428: m. Fixed a bug that could cause a core dump when an edited history entry was
429: re-executed under certain conditions.
430:
431: n. Fixed a bug that caused readline to reference freed memory when attmpting
432: to display a portion of the prompt.
433:
434: o. Fixed a bug with prompt redisplay in a multi-byte locale to avoid redrawing
435: the prompt and input line multiple times.
436:
437: p. Fixed history expansion to not be confused by here-string redirection.
438:
439: q. Readline no longer treats read errors by converting them to newlines, as
440: it does with EOF. This caused partial lines to be returned from readline().
441:
442: r. Fixed a redisplay bug that occurred in multibyte-capable locales when the
443: prompt was one character longer than the screen width.
444:
445: 2. New Features in Readline
446:
447: a. Calling applications can now set the keyboard timeout to 0, allowing
448: poll-like behavior.
449:
450: b. The value of SYS_INPUTRC (configurable at compilation time) is now used as
451: the default last-ditch startup file.
452:
453: c. The history file reading functions now allow windows-like \r\n line
454: terminators.
455:
456: -------------------------------------------------------------------------------
457: This document details the changes between this version, readline-5.1,
458: and the previous version, readline-5.0.
459:
460: 1. Changes to Readline
461:
462: a. Fixed a bug that caused multiliine prompts to be wrapped and displayed
463: incorrectly.
464:
465: b. Fixed a bug that caused ^P/^N in emacs mode to fail to display the current
466: line correctly.
467:
468: c. Fixed a problem in computing the number of invisible characters on the first
469: line of a prompt whose length exceeds the screen width.
470:
471: d. Fixed vi-mode searching so that failure preserves the current line rather
472: than the last line in the history list.
473:
474: e. Fixed the vi-mode `~' command (change-case) to have the correct behavior at
475: end-of-line when manipulating multibyte characters.
476:
477: f. Fixed the vi-mode `r' command (change-char) to have the correct behavior at
478: end-of-line when manipulating multibyte characters.
479:
480: g. Fixed multiple bugs in the redisplay of multibyte characters: displaying
481: prompts longer than the screen width containing multibyte characters,
482:
483: h. Fix the calculation of the number of physical characters in the prompt
484: string when it contains multibyte characters.
485:
486: i. A non-zero value for the `rl_complete_suppress_append' variable now causes
487: no `/' to be appended to a directory name.
488:
489: j. Fixed forward-word and backward-word to work when words contained
490: multibyte characters.
491:
492: k. Fixed a bug in finding the delimiter of a `?' substring when performing
493: history expansion in a locale that supports multibyte characters.
494:
495: l. Fixed a memory leak caused by not freeing the timestamp in a history entry.
496:
497: m. Fixed a bug that caused "\M-x" style key bindings to not obey the setting
498: of the `convert-meta' variable.
499:
500: n. Fixed saving and restoring primary prompt when prompting for incremental
501: and non-incremental searches; search prompts now display multibyte
502: characters correctly.
503:
504: o. Fixed a bug that caused keys originally bound to self-insert but shadowed
505: by a multi-character key sequence to not be inserted.
506:
507: p. Fixed code so rl_prep_term_function and rl_deprep_term_function aren't
508: dereferenced if NULL (matching the documentation).
509:
510: q. Extensive changes to readline to add enough state so that commands
511: requiring additional characters (searches, multi-key sequences, numeric
512: arguments, commands requiring an additional specifier character like
513: vi-mode change-char, etc.) work without synchronously waiting for
514: additional input.
515:
516: r. Lots of changes so readline builds and runs on MinGW.
517:
518: s. Readline no longer tries to modify the terminal settings when running in
519: callback mode.
520:
521: t. The Readline display code no longer sets the location of the last invisible
522: character in the prompt if the \[\] sequence is empty.
523:
524: u. The `change-case' command now correctly changes the case of multibyte
525: characters.
526:
527: v. Changes to the shared library construction scripts to deal with Windows
528: DLL naming conventions for Cygwin.
529:
530: w. Fixed the redisplay code to avoid core dumps resulting from a poorly-timed
531: SIGWINCH.
532:
533: x. Fixed the non-incremental search code in vi mode to dispose of any current
534: undo list when copying a line from the history into the current editing
535: buffer.
536:
537: y. Fixed a bug that caused reversing the incremental search direction to
538: not work correctly.
539:
540: z. Fixed the vi-mode `U' command to only undo up to the first time insert mode
541: was entered, as Posix specifies.
542:
543: aa. Fixed a bug in the vi-mode `r' command that left the cursor in the wrong
544: place.
545:
546: bb. Fixed a redisplay bug caused by moving the cursor vertically to a line
547: with invisible characters in the prompt in a multibyte locale.
548:
549: cc. Fixed a bug that could cause the terminal special chars to be bound in the
550: wrong keymap in vi mode.
551:
552: 2. New Features in Readline
553:
554: a. The key sequence sent by the keypad `delete' key is now automatically
555: bound to delete-char.
556:
557: b. A negative argument to menu-complete now cycles backward through the
558: completion list.
559:
560: c. A new bindable readline variable: bind-tty-special-chars. If non-zero,
561: readline will bind the terminal special characters to their readline
562: equivalents when it's called (on by default).
563:
564: d. New bindable command: vi-rubout. Saves deleted text for possible
565: reinsertion, as with any vi-mode `text modification' command; `X' is bound
566: to this in vi command mode.
567:
568: e. If the rl_completion_query_items is set to a value < 0, readline never
569: asks the user whether or not to view the possible completions.
570:
571: f. The `C-w' binding in incremental search now understands multibyte
572: characters.
573:
574: g. New application-callable auxiliary function, rl_variable_value, returns
575: a string corresponding to a readline variable's value.
576:
577: h. When parsing inputrc files and variable binding commands, the parser
578: strips trailing whitespace from values assigned to boolean variables
579: before checking them.
580:
581: i. A new external application-controllable variable that allows the LINES
582: and COLUMNS environment variables to set the window size regardless of
583: what the kernel returns.
584:
585: -------------------------------------------------------------------------------
586: This document details the changes between this version, readline-5.0,
587: and the previous version, readline-4.3.
588:
589: 1. Changes to Readline
590:
591: a. Fixes to avoid core dumps because of null pointer references in the
592: multibyte character code.
593:
594: b. Fix to avoid infinite recursion caused by certain key combinations.
595:
596: c. Fixed a bug that caused the vi-mode `last command' to be set incorrectly.
597:
598: d. Readline no longer tries to read ahead more than one line of input, even
599: when more is available.
600:
601: e. Fixed the code that adjusts the point to not mishandle null wide
602: characters.
603:
604: f. Fixed a bug in the history expansion `g' modifier that caused it to skip
605: every other match.
606:
607: g. Fixed a bug that caused the prompt to overwrite previous output when the
608: output doesn't contain a newline and the locale supports multibyte
609: characters. This same change fixes the problem of readline redisplay
610: slowing down dramatically as the line gets longer in multibyte locales.
611:
612: h. History traversal with arrow keys in vi insertion mode causes the cursor
613: to be placed at the end of the new line, like in emacs mode.
614:
615: i. The locale initialization code does a better job of using the right
616: precedence and defaulting when checking the appropriate environment
617: variables.
618:
619: j. Fixed the history word tokenizer to handle <( and >( better when used as
620: part of bash.
621:
622: k. The overwrite mode code received several bug fixes to improve undo.
623:
624: l. Many speedups to the multibyte character redisplay code.
625:
626: m. The callback character reading interface should not hang waiting to read
627: keyboard input.
628:
629: n. Fixed a bug with redoing vi-mode `s' command.
630:
631: o. The code that initializes the terminal tracks changes made to the terminal
632: special characters with stty(1) (or equivalent), so that these changes
633: are reflected in the readline bindings. New application-callable function
634: to make it work: rl_tty_unset_default_bindings().
635:
636: p. Fixed a bug that could cause garbage to be inserted in the buffer when
637: changing character case in vi mode when using a multibyte locale.
638:
639: q. Fixed a bug in the redisplay code that caused problems on systems
640: supporting multibyte characters when moving between history lines when the
641: new line has more glyphs but fewer bytes.
642:
643: r. Undo and redo now work better after exiting vi insertion mode.
644:
645: s. Make sure system calls are restarted after a SIGWINCH is received using
646: SA_RESTART.
647:
648: t. Improvements to the code that displays possible completions when using
649: multibyte characters.
650:
651: u. Fixed a problem when parsing nested if statements in inputrc files.
652:
653: v. The completer now takes multibyte characters into account when looking for
654: quoted substrings on which to perform completion.
655:
656: w. The history search functions now perform better bounds checking on the
657: history list.
658:
659: x. Change to history expansion functions to treat `^' as equivalent to word
660: one, as the documention states.
661:
662: y. Some changes to the display code to improve display and redisplay of
663: multibyte characters.
664:
665: z. Changes to speed up the multibyte character redisplay code.
666:
667: aa. Fixed a bug in the vi-mode `E' command that caused it to skip over the
668: last character of a word if invoked while point was on the word's
669: next-to-last character.
670:
671: bb. Fixed a bug that could cause incorrect filename quoting when
672: case-insensitive completion was enabled and the word being completed
673: contained backslashes quoting word break characters.
674:
675: cc. Fixed a bug in redisplay triggered when the prompt string contains
676: invisible characters.
677:
678: dd. Fixed some display (and other) bugs encountered in multibyte locales
679: when a non-ascii character was the last character on a line.
680:
681: ee. Fixed some display bugs caused by multibyte characters in prompt strings.
682:
683: ff. Fixed a problem with history expansion caused by non-whitespace characters
684: used as history word delimiters.
685:
686: gg. Fixed a problem that could cause readline to refer to freed memory when
687: moving between history lines while doing searches.
688:
689: hh. Improvements to the code that expands and displays prompt strings
690: containing multibyte characters.
691:
692: ii. Fixed a problem with vi-mode not correctly remembering the numeric argument
693: to the last `c'hange command for later use with `.'.
694:
695: jj. Fixed a bug in vi-mode that caused multi-digit count arguments to work
696: incorrectly.
697:
698: kk. Fixed a problem in vi-mode that caused the last text modification command
699: to not be remembered across different command lines.
700:
701: ll. Fixed problems with changing characters and changing case at the end of
702: the line.
703:
704: mm. Fixed a problem with readline saving the contents of the current line
705: before beginning a non-interactive search.
706:
707: nn. Fixed a problem with EOF detection when using rl_event_hook.
708:
709: oo. Fixed a problem with the vi mode `p' and `P' commands ignoring numeric
710: arguments.
711:
712: 2. New Features in Readline
713:
714: a. History expansion has a new `a' modifier equivalent to the `g' modifier
715: for compatibility with the BSD csh.
716:
717: b. History expansion has a new `G' modifier equivalent to the BSD csh `g'
718: modifier, which performs a substitution once per word.
719:
720: c. All non-incremental search operations may now undo the operation of
721: replacing the current line with the history line.
722:
723: d. The text inserted by an `a' command in vi mode can be reinserted with
724: `.'.
725:
726: e. New bindable variable, `show-all-if-unmodified'. If set, the readline
727: completer will list possible completions immediately if there is more
728: than one completion and partial completion cannot be performed.
729:
730: f. There is a new application-callable `free_history_entry()' function.
731:
732: g. History list entries now contain timestamp information; the history file
733: functions know how to read and write timestamp information associated
734: with each entry.
735:
736: h. Four new key binding functions have been added:
737:
738: rl_bind_key_if_unbound()
739: rl_bind_key_if_unbound_in_map()
740: rl_bind_keyseq_if_unbound()
741: rl_bind_keyseq_if_unbound_in_map()
742:
743: i. New application variable, rl_completion_quote_character, set to any
744: quote character readline finds before it calls the application completion
745: function.
746:
747: j. New application variable, rl_completion_suppress_quote, settable by an
748: application completion function. If set to non-zero, readline does not
749: attempt to append a closing quote to a completed word.
750:
751: k. New application variable, rl_completion_found_quote, set to a non-zero
752: value if readline determines that the word to be completed is quoted.
753: Set before readline calls any application completion function.
754:
755: l. New function hook, rl_completion_word_break_hook, called when readline
756: needs to break a line into words when completion is attempted. Allows
757: the word break characters to vary based on position in the line.
758:
759: m. New bindable command: unix-filename-rubout. Does the same thing as
760: unix-word-rubout, but adds `/' to the set of word delimiters.
761:
762: n. When listing completions, directories have a `/' appended if the
763: `mark-directories' option has been enabled.
764:
765: -------------------------------------------------------------------------------
766: This document details the changes between this version, readline-4.3,
767: and the previous version, readline-4.2a.
768:
769: 1. Changes to Readline
770:
771: a. Fixed output of comment-begin character when listing variable values.
772:
773: b. Added some default key bindings for common escape sequences produced by
774: HOME and END keys.
775:
776: c. Fixed the mark handling code to be more emacs-compatible.
777:
778: d. A bug was fixed in the code that prints possible completions to keep it
779: from printing empty strings in certain circumstances.
780:
781: e. Change the key sequence printing code to print ESC as M\- if ESC is a
782: meta-prefix character -- it's easier for users to understand than \e.
783:
784: f. Fixed unstifle_history() to return values that match the documentation.
785:
786: g. Fixed the event loop (rl_event_hook) to handle the case where the input
787: file descriptor is invalidated.
788:
789: h. Fixed the prompt display code to work better when the application has a
790: custom redisplay function.
791:
792: i. Changes to make reading and writing the history file a little faster, and
793: to cope with huge history files without calling abort(3) from xmalloc.
794:
795: j. The vi-mode `S' and `s' commands are now undone correctly.
796:
797: k. Fixed a problem which caused the display to be messed up when the last
798: line of a multi-line prompt (possibly containing invisible characters)
799: was longer than the screen width.
800:
801: 2. New Features in Readline
802:
803: a. Support for key `subsequences': allows, e.g., ESC and ESC-a to both
804: be bound to readline functions. Now the arrow keys may be used in vi
805: insert mode.
806:
807: b. When listing completions, and the number of lines displayed is more than
808: the screen length, readline uses an internal pager to display the results.
809: This is controlled by the `page-completions' variable (default on).
810:
811: c. New code to handle editing and displaying multibyte characters.
812:
813: d. The behavior introduced in bash-2.05a of deciding whether or not to
814: append a slash to a completed name that is a symlink to a directory has
815: been made optional, controlled by the `mark-symlinked-directories'
816: variable (default is the 2.05a behavior).
817:
818: e. The `insert-comment' command now acts as a toggle if given a numeric
819: argument: if the first characters on the line don't specify a
820: comment, insert one; if they do, delete the comment text
821:
822: f. New application-settable completion variable:
823: rl_completion_mark_symlink_dirs, allows an application's completion
824: function to temporarily override the user's preference for appending
825: slashes to names which are symlinks to directories.
826:
827: g. New function available to application completion functions:
828: rl_completion_mode, to tell how the completion function was invoked
829: and decide which argument to supply to rl_complete_internal (to list
830: completions, etc.).
831:
832: h. Readline now has an overwrite mode, toggled by the `overwrite-mode'
833: bindable command, which could be bound to `Insert'.
834:
835: i. New application-settable completion variable:
836: rl_completion_suppress_append, inhibits appending of
837: rl_completion_append_character to completed words.
838:
839: j. New key bindings when reading an incremental search string: ^W yanks
840: the currently-matched word out of the current line into the search
841: string; ^Y yanks the rest of the current line into the search string,
842: DEL or ^H deletes characters from the search string.
843:
844: -------------------------------------------------------------------------------
845: This document details the changes between this version, readline-4.2a,
846: and the previous version, readline-4.2.
847:
848: 1. Changes to Readline
849:
850: a. More `const' and type casting fixes.
851:
852: b. Changed rl_message() to use vsnprintf(3) (if available) to fix buffer
853: overflow problems.
854:
855: c. The completion code no longer appends a `/' or ` ' to a match when
856: completing a symbolic link that resolves to a directory name, unless
857: the match does not add anything to the word being completed. This
858: means that a tab will complete the word up to the full name, but not
859: add anything, and a subsequent tab will add a slash.
860:
861: d. Fixed a trivial typo that made the vi-mode `dT' command not work.
862:
863: e. Fixed the tty code so that ^S and ^Q can be inserted with rl_quoted_insert.
864:
865: f. Fixed the tty code so that ^V works more than once.
866:
867: g. Changed the use of __P((...)) for function prototypes to PARAMS((...))
868: because the use of __P in typedefs conflicted g++ and glibc.
869:
870: h. The completion code now attempts to do a better job of preserving the
871: case of the word the user typed if ignoring case in completions.
872:
873: i. Readline defaults to not echoing the input and lets the terminal
874: initialization code enable echoing if there is a controlling terminal.
875:
876: j. The key binding code now processes only two hex digits after a `\x'
877: escape sequence, and the documentation was changed to note that the
878: octal and hex escape sequences result in an eight-bit value rather
879: than strict ASCII.
880:
881: k. Fixed a few places where negative array subscripts could have occurred.
882:
883: l. Fixed the vi-mode code to use a better method to determine the bounds of
884: the array used to hold the marks, and to avoid out-of-bounds references.
885:
886: m. Fixed the defines in chardefs.h to work better when chars are signed.
887:
888: n. Fixed configure.in to use the new names for bash autoconf macros.
889:
890: o. Readline no longer attempts to define its own versions of some ctype
891: macros if they are implemented as functions in libc but not as macros in
892: <ctype.h>.
893:
894: p. Fixed a problem where rl_backward could possibly set point to before
895: the beginning of the line.
896:
897: q. Fixed Makefile to not put -I/usr/include into CFLAGS, since it can cause
898: include file problems.
899:
900: 2. New Features in Readline
901:
902: a. Added extern declaration for rl_get_termcap to readline.h, making it a
903: public function (it was always there, just not in readline.h).
904:
905: b. New #defines in readline.h: RL_READLINE_VERSION, currently 0x0402,
906: RL_VERSION_MAJOR, currently 4, and RL_VERSION_MINOR, currently 2.
907:
908: c. New readline variable: rl_readline_version, mirrors RL_READLINE_VERSION.
909:
910: d. New bindable boolean readline variable: match-hidden-files. Controls
911: completion of files beginning with a `.' (on Unix). Enabled by default.
912:
913: e. The history expansion code now allows any character to terminate a
914: `:first-' modifier, like csh.
915:
916: f. The incremental search code remembers the last search string and uses
917: it if ^R^R is typed without a search string.
918:
919: h. New bindable variable `history-preserve-point'. If set, the history
920: code attempts to place the user at the same location on each history
921: line retrived with previous-history or next-history.
922:
923: -------------------------------------------------------------------------------
924: This document details the changes between this version, readline-4.2,
925: and the previous version, readline-4.1.
926:
927: 1. Changes to Readline
928:
929: a. When setting the terminal attributes on systems using `struct termio',
930: readline waits for output to drain before changing the attributes.
931:
932: b. A fix was made to the history word tokenization code to avoid attempts to
933: dereference a null pointer.
934:
935: c. Readline now defaults rl_terminal_name to $TERM if the calling application
936: has left it unset, and tries to initialize with the resultant value.
937:
938: d. Instead of calling (*rl_getc_function)() directly to get input in certain
939: places, readline now calls rl_read_key() consistently.
940:
941: e. Fixed a bug in the completion code that allowed a backslash to quote a
942: single quote inside a single-quoted string.
943:
944: f. rl_prompt is no longer assigned directly from the argument to readline(),
945: but uses memory allocated by readline. This allows constant strings to
946: be passed to readline without problems arising when the prompt processing
947: code wants to modify the string.
948:
949: g. Fixed a bug that caused non-interactive history searches to return the
950: wrong line when performing multiple searches backward for the same string.
951:
952: h. Many variables, function arguments, and function return values are now
953: declared `const' where appropriate, to improve behavior when linking with
954: C++ code.
955:
956: i. The control character detection code now works better on systems where
957: `char' is unsigned by default.
958:
959: j. The vi-mode numeric argument is now capped at 999999, just like emacs mode.
960:
961: k. The Function, CPFunction, CPPFunction, and VFunction typedefs have been
962: replaced with a set of specific prototyped typedefs, though they are
963: still in the readline header files for backwards compatibility.
964:
965: m. Nearly all of the (undocumented) internal global variables in the library
966: now have an _rl_ prefix -- there were a number that did not, like
967: screenheight, screenwidth, alphabetic, etc.
968:
969: n. The ding() convenience function has been renamed to rl_ding(), though the
970: old function is still defined for backwards compatibility.
971:
972: o. The completion convenience functions filename_completion_function,
973: username_completion_function, and completion_matches now have an rl_
974: prefix, though the old names are still defined for backwards compatibility.
975:
976: p. The functions shared by readline and bash (linkage is satisfied from bash
977: when compiling with bash, and internally otherwise) now have an sh_ prefix.
978:
979: q. Changed the shared library creation procedure on Linux and BSD/OS 4.x so
980: that the `soname' contains only the major version number rather than the
981: major and minor numbers.
982:
983: r. Fixed a redisplay bug that occurred when the prompt spanned more than one
984: physical line and contained invisible characters.
985:
986: s. Added a missing `includedir' variable to the Makefile.
987:
988: t. When installing the shared libraries, make sure symbolic links are relative.
989:
990: u. Added configure test so that it can set `${MAKE}' appropriately.
991:
992: v. Fixed a bug in rl_forward that could cause the point to be set to before
993: the beginning of the line in vi mode.
994:
995: w. Fixed a bug in the callback read-char interface to make it work when a
996: readline function pushes some input onto the input stream with
997: rl_execute_next (like the incremental search functions).
998:
999: x. Fixed a file descriptor leak in the history file manipulation code that
1000: was tripped when attempting to truncate a non-regular file (like
1001: /dev/null).
1002:
1003: y. Changes to make all of the exported readline functions declared in
1004: readline.h have an rl_ prefix (rltty_set_default_bindings is now
1005: rl_tty_set_default_bindings, crlf is now rl_crlf, etc.)
1006:
1007: z. The formatted documentation included in the base readline distribution
1008: is no longer removed on a `make distclean'.
1009:
1010: aa. Some changes were made to avoid gcc warnings with -Wall.
1011:
1012: bb. rl_get_keymap_by_name now finds keymaps case-insensitively, so
1013: `set keymap EMACS' works.
1014:
1015: cc. The history file writing and truncation functions now return a useful
1016: status on error.
1017:
1018: dd. Fixed a bug that could cause applications to dereference a NULL pointer
1019: if a NULL second argument was passed to history_expand().
1020:
1021: ee. If a hook function assigned to rl_event_hook sets rl_done to a non-zero
1022: value, rl_read_key() now immediately returns '\n' (which is assumed to
1023: be bound to accept-line).
1024:
1025: 2. New Features in Readline
1026:
1027: a. The blink timeout for paren matching is now settable by applications,
1028: via the rl_set_paren_blink_timeout() function.
1029:
1030: b. _rl_executing_macro has been renamed to rl_executing_macro, which means
1031: it's now part of the public interface.
1032:
1033: c. Readline has a new variable, rl_readline_state, which is a bitmap that
1034: encapsulates the current state of the library; intended for use by
1035: callbacks and hook functions.
1036:
1037: d. rlfe has a new -l option to log input and output (-a appends to logfile),
1038: a new -n option to set the readline application name, and -v and -h
1039: options for version and help information.
1040:
1041: e. rlfe can now perform filename completion for the inferior process if the
1042: OS has a /proc/<PID>/cwd that can be read with readlink(2) to get the
1043: inferior's current working directory.
1044:
1045: f. A new file, rltypedefs.h, contains the new typedefs for function pointers
1046: and is installed by `make install'.
1047:
1048: g. New application-callable function rl_set_prompt(const char *prompt):
1049: expands its prompt string argument and sets rl_prompt to the result.
1050:
1051: h. New application-callable function rl_set_screen_size(int rows, int cols):
1052: public method for applications to set readline's idea of the screen
1053: dimensions.
1054:
1055: i. The history example program (examples/histexamp.c) is now built as one
1056: of the examples.
1057:
1058: j. The documentation has been updated to cover nearly all of the public
1059: functions and variables declared in readline.h.
1060:
1061: k. New function, rl_get_screen_size (int *rows, int *columns), returns
1062: readline's idea of the screen dimensions.
1063:
1064: l. The timeout in rl_gather_tyi (readline keyboard input polling function)
1065: is now settable via a function (rl_set_keyboard_input_timeout()).
1066:
1067: m. Renamed the max_input_history variable to history_max_entries; the old
1068: variable is maintained for backwards compatibility.
1069:
1070: n. The list of characters that separate words for the history tokenizer is
1071: now settable with a variable: history_word_delimiters. The default
1072: value is as before.
1073:
1074: o. There is a new history.3 manual page documenting the history library.
1075:
1076: -------------------------------------------------------------------------------
1077: This document details the changes between this version, readline-4.1,
1078: and the previous version, readline-4.0.
1079:
1080: 1. Changes to Readline
1081:
1082: a. Changed the HTML documents so that the table-of-contents is no longer
1083: a separate file.
1084:
1085: b. Changes to the shared object configuration for: Irix 5.x, Irix 6.x,
1086: OSF/1.
1087:
1088: c. The shared library major and minor versions are now constructed
1089: automatically by configure and substituted into the makefiles.
1090:
1091: d. It's now possible to install the shared libraries separately from the
1092: static libraries.
1093:
1094: e. The history library tries to truncate the history file only if it is a
1095: regular file.
1096:
1097: f. A bug that caused _rl_dispatch to address negative array indices on
1098: systems with signed chars was fixed.
1099:
1100: g. rl-yank-nth-arg now leaves the history position the same as when it was
1101: called.
1102:
1103: h. Changes to the completion code to handle MS-DOS drive-letter:pathname
1104: filenames.
1105:
1106: i. Completion is now case-insensitive by default on MS-DOS.
1107:
1108: j. Fixes to the history file manipulation code for MS-DOS.
1109:
1110: k. Readline attempts to bind the arrow keys to appropriate defaults on MS-DOS.
1111:
1112: l. Some fixes were made to the redisplay code for better operation on MS-DOS.
1113:
1114: m. The quoted-insert code will now insert tty special chars like ^C.
1115:
1116: n. A bug was fixed that caused the display code to reference memory before
1117: the start of the prompt string.
1118:
1119: o. More support for __EMX__ (OS/2).
1120:
1121: p. A bug was fixed in readline's signal handling that could cause infinite
1122: recursion in signal handlers.
1123:
1124: q. A bug was fixed that caused the point to be less than zero when rl_forward
1125: was given a very large numeric argument.
1126:
1127: r. The vi-mode code now gets characters via the application-settable value
1128: of rl_getc_function rather than calling rl_getc directly.
1129:
1130: s. The history file code now uses O_BINARY mode when reading and writing
1131: the history file on cygwin32.
1132:
1133: t. Fixed a bug in the redisplay code for lines with more than 256 line
1134: breaks.
1135:
1136: u. A bug was fixed which caused invisible character markers to not be
1137: stripped from the prompt string if the terminal was in no-echo mode.
1138:
1139: v. Readline no longer tries to get the variables it needs for redisplay
1140: from the termcap entry if the calling application has specified its
1141: own redisplay function. Readline treats the terminal as `dumb' in
1142: this case.
1143:
1144: w. Fixes to the SIGWINCH code so that a multiple-line prompt with escape
1145: sequences is redrawn correctly.
1146:
1147: x. Changes to the install and install-shared targets so that the libraries
1148: and header files are installed separately.
1149:
1150: 2. New Features in Readline
1151:
1152: a. A new Readline `user manual' is in doc/rluserman.texinfo.
1153:
1154: b. Parentheses matching is now always compiled into readline, and enabled
1155: or disabled when the value of the `blink-matching-paren' variable is
1156: changed.
1157:
1158: c. MS-DOS systems now use ~/_inputrc as the last-ditch inputrc filename.
1159:
1160: d. MS-DOS systems now use ~/_history as the default history file.
1161:
1162: e. history-search-{forward,backward} now leave the point at the end of the
1163: line when the string to search for is empty, like
1164: {reverse,forward}-search-history.
1165:
1166: f. history-search-{forward,backward} now leave the last history line found
1167: in the readline buffer if the second or subsequent search fails.
1168:
1169: g. New function for use by applications: rl_on_new_line_with_prompt, used
1170: when an application displays the prompt itself before calling readline().
1171:
1172: h. New variable for use by applications: rl_already_prompted. An application
1173: that displays the prompt itself before calling readline() must set this to
1174: a non-zero value.
1175:
1176: i. A new variable, rl_gnu_readline_p, always 1. The intent is that an
1177: application can verify whether or not it is linked with the `real'
1178: readline library or some substitute.
1179:
1180: j. Per Bothner's `rlfe' (pronounced `Ralphie') readline front-end program
1181: is included in the examples subdirectory, though it is not built
1182: by default.
1183:
1184: -------------------------------------------------------------------------------
1185: This document details the changes between this version, readline-4.0,
1186: and the previous version, readline-2.2.
1187:
1188: 1. Changes to Readline
1189:
1190: a. The version number is now 4.0, to match the major and minor version
1191: numbers on the shared readline and history libraries. Future
1192: releases will maintain the identical numbering.
1193:
1194: b. Fixed a typo in the `make install' recipe that copied libreadline.a
1195: to libhistory.old right after installing it.
1196:
1197: c. The readline and history info files are now installed out of the source
1198: directory if they are not found in the build directory.
1199:
1200: d. The library no longer exports a function named `savestring' -- backwards
1201: compatibility be damned.
1202:
1203: e. There is no longer any #ifdef SHELL code in the source files.
1204:
1205: f. Some changes were made to the key binding code to fix memory leaks and
1206: better support Win32 systems.
1207:
1208: g. Fixed a silly typo in the paren matching code -- it's microseconds, not
1209: milliseconds.
1210:
1211: h. The readline library should be compilable by C++ compilers.
1212:
1213: i. The readline.h public header file now includes function prototypes for
1214: all readline functions, and some changes were made to fix errors in the
1215: source files uncovered by the use of prototypes.
1216:
1217: j. The maximum numeric argument is now clamped at 1000000.
1218:
1219: k. Fixes to rl_yank_last_arg to make it behave better.
1220:
1221: l. Fixed a bug in the display code that caused core dumps if the prompt
1222: string length exceeded 1024 characters.
1223:
1224: m. The menu completion code was fixed to properly insert a single completion
1225: if there is only one match.
1226:
1227: n. A bug was fixed that caused the display code to improperly display tabs
1228: after newlines.
1229:
1230: o. A fix was made to the completion code in which a typo caused the wrong
1231: value to be passed to the function that computed the longest common
1232: prefix of the list of matches.
1233:
1234: p. The completion code now checks the value of rl_filename_completion_desired,
1235: which is set by application-supplied completion functions to indicate
1236: that filename completion is being performed, to decide whether or not to
1237: call an application-supplied `ignore completions' function.
1238:
1239: q. Code was added to the history library to catch history substitutions
1240: using `&' without a previous history substitution or search having been
1241: performed.
1242:
1243:
1244: 2. New Features in Readline
1245:
1246: a. There is a new script, support/shobj-conf, to do system-specific shared
1247: object and library configuration. It generates variables for configure
1248: to substitute into makefiles. The README file provides a detailed
1249: explanation of the shared library creation process.
1250:
1251: b. Shared libraries and objects are now built in the `shlib' subdirectory.
1252: There is a shlib/Makefile.in to control the build process. `make shared'
1253: from the top-level directory is still the right way to build shared
1254: versions of the libraries.
1255:
1256: c. rlconf.h is now installed, so applications can find out which features
1257: have been compiled into the installed readline and history libraries.
1258:
1259: d. rlstdc.h is now an installed header file.
1260:
1261: e. Many changes to the signal handling:
1262: o Readline now catches SIGQUIT and cleans up the tty before returning;
1263: o A new variable, rl_catch_signals, is available to application writers
1264: to indicate to readline whether or not it should install its own
1265: signal handlers for SIGINT, SIGTERM, SIGQUIT, SIGALRM, SIGTSTP,
1266: SIGTTIN, and SIGTTOU;
1267: o A new variable, rl_catch_sigwinch, is available to application
1268: writers to indicate to readline whether or not it should install its
1269: own signal handler for SIGWINCH, which will chain to the calling
1270: applications's SIGWINCH handler, if one is installed;
1271: o There is a new function, rl_free_line_state, for application signal
1272: handlers to call to free up the state associated with the current
1273: line after receiving a signal;
1274: o There is a new function, rl_cleanup_after_signal, to clean up the
1275: display and terminal state after receiving a signal;
1276: o There is a new function, rl_reset_after_signal, to reinitialize the
1277: terminal and display state after an application signal handler
1278: returns and readline continues
1279:
1280: f. There is a new function, rl_resize_terminal, to reset readline's idea of
1281: the screen size after a SIGWINCH.
1282:
1283: g. New public functions: rl_save_prompt and rl_restore_prompt. These were
1284: previously private functions with a `_' prefix. These functions are
1285: used when an application wants to write a message to the `message area'
1286: with rl_message and have the prompt restored correctly when the message
1287: is erased.
1288:
1289: h. New function hook: rl_pre_input_hook, called just before readline starts
1290: reading input, after initialization.
1291:
1292: i. New function hook: rl_display_matches_hook, called when readline would
1293: display the list of completion matches. The new function
1294: rl_display_match_list is what readline uses internally, and is available
1295: for use by application functions called via this hook.
1296:
1297: j. New bindable function, delete-char-or-list, like tcsh.
1298:
1299: k. A new variable, rl_erase_empty_line, which, if set by an application using
1300: readline, will cause readline to erase, prompt and all, lines on which the
1301: only thing typed was a newline.
1302:
1303: l. There is a new script, support/shlib-install, to install and uninstall
1304: the shared readline and history libraries.
1305:
1306: m. A new bindable variable, `isearch-terminators', which is a string
1307: containing the set of characters that should terminate an incremental
1308: search without being executed as a command.
1309:
1310: n. A new bindable function, forward-backward-delete-char.
1311:
1312: -------------------------------------------------------------------------------
1313: This document details the changes between this version, readline-2.2,
1314: and the previous version, readline-2.1.
1315:
1316: 1. Changes to Readline
1317:
1318: a. Added a missing `extern' to a declaration in readline.h that kept
1319: readline from compiling cleanly on some systems.
1320:
1321: b. The history file is now opened with mode 0600 when it is written for
1322: better security.
1323:
1324: c. Changes were made to the SIGWINCH handling code so that prompt redisplay
1325: is done better.
1326:
1327: d. ^G now interrupts incremental searches correctly.
1328:
1329: e. A bug that caused a core dump when the set of characters to be quoted
1330: when completing words was empty was fixed.
1331:
1332: f. Fixed a problem in the readline test program rltest.c that caused a core
1333: dump.
1334:
1335: g. The code that handles parser directives in inputrc files now displays
1336: more error messages.
1337:
1338: h. The history expansion code was fixed so that the appearance of the
1339: history comment character at the beginning of a word inhibits history
1340: expansion for that word and the rest of the input line.
1341:
1342: i. The code that prints completion listings now behaves better if one or
1343: more of the filenames contains non-printable characters.
1344:
1345: j. The time delay when showing matching parentheses is now 0.5 seconds.
1346:
1347:
1348: 2. New Features in Readline
1349:
1350: a. There is now an option for `iterative' yank-last-arg handline, so a user
1351: can keep entering `M-.', yanking the last argument of successive history
1352: lines.
1353:
1354: b. New variable, `print-completions-horizontally', which causes completion
1355: matches to be displayed across the screen (like `ls -x') rather than up
1356: and down the screen (like `ls').
1357:
1358: c. New variable, `completion-ignore-case', which causes filename completion
1359: and matching to be performed case-insensitively.
1360:
1361: d. There is a new bindable command, `magic-space', which causes history
1362: expansion to be performed on the current readline buffer and a space to
1363: be inserted into the result.
1364:
1365: e. There is a new bindable command, `menu-complete', which enables tcsh-like
1366: menu completion (successive executions of menu-complete insert a single
1367: completion match, cycling through the list of possible completions).
1368:
1369: f. There is a new bindable command, `paste-from-clipboard', for use on Win32
1370: systems, to insert the text from the Win32 clipboard into the editing
1371: buffer.
1372:
1373: g. The key sequence translation code now understands printf-style backslash
1374: escape sequences, including \NNN octal escapes. These escape sequences
1375: may be used in key sequence definitions or macro values.
1376:
1377: h. An `$include' inputrc file parser directive has been added.

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