Gnu(3) User Contributed Perl Documentation Gnu(3)NAMETerm::ReadLine::Gnu - Perl extension for the GNU Readline/History
Library
SYNOPSIS
use Term::ReadLine;
$term = new Term::ReadLine 'ProgramName';
while ( defined ($_ = $term->readline('prompt>')) ) {
...
}
DESCRIPTION
Overview
This is an implementation of Term::ReadLine using the GNU
Readline/History Library.
For basic functions object oriented interface is provided. These are
described in the section "Standard Methods" and ""Term::ReadLine::Gnu"
Functions".
This package also has the interface with the almost all functions and
variables which are documented in the GNU Readline/History Library
Manual. They are documented in the section ""Term::ReadLine::Gnu"
Functions" and ""Term::ReadLine::Gnu" Variables" briefly. For more
detail of the GNU Readline/History Library, see 'GNU Readline Library
Manual' and 'GNU History Library Manual'.
The sample programs under "eg/" directory and test programs under "t/"
directory in the "Term::ReadLine::Gnu" distribution include many
example of this module.
Standard Methods
These methods are standard methods defined by Term::ReadLine.
"ReadLine"
returns the actual package that executes the commands. If you have
installed this package, possible value is "Term::ReadLine::Gnu".
"new(NAME,[IN[,OUT]])"
returns the handle for subsequent calls to following functions.
Argument is the name of the application. Optionally can be
followed by two arguments for "IN" and "OUT" file handles. These
arguments should be globs.
"readline(PROMPT[,PREPUT])"
gets an input line, with actual "GNU Readline" support. Trailing
newline is removed. Returns "undef" on "EOF". "PREPUT" is an
optional argument meaning the initial value of input.
The optional argument "PREPUT" is granted only if the value
"preput" is in "Features".
"PROMPT" may include some escape sequences. Use
"RL_PROMPT_START_IGNORE" to begin a sequence of non-printing
characters, and "RL_PROMPT_END_IGNORE" to end of such a sequence.
"AddHistory(LINE1, LINE2, ...)"
adds the lines to the history of input, from where it can be used
if the actual "readline" is present.
"IN", "OUT"
return the file handles for input and output or "undef" if
"readline" input and output cannot be used for Perl.
"MinLine([MAX])"
If argument "MAX" is specified, it is an advice on minimal size of
line to be included into history. "undef" means do not include
anything into history. Returns the old value.
"findConsole"
returns an array with two strings that give most appropriate names
for files for input and output using conventions "<$in", ">$out".
"Attribs"
returns a reference to a hash which describes internal
configuration (variables) of the package. Names of keys in this
hash conform to standard conventions with the leading "rl_"
stripped.
See section "Variables" for supported variables.
"Features"
Returns a reference to a hash with keys being features present in
current implementation. Several optional features are used in the
minimal interface: "appname" should be present if the first
argument to "new" is recognized, and "minline" should be present if
"MinLine" method is not dummy. "autohistory" should be present if
lines are put into history automatically (maybe subject to
"MinLine"), and "addHistory" if "AddHistory" method is not dummy.
"preput" means the second argument to "readline" method is
processed. "getHistory" and "setHistory" denote that the
corresponding methods are present. "tkRunning" denotes that a Tk
application may run while ReadLine is getting input.
"Term::ReadLine::Gnu" Functions
All these GNU Readline/History Library functions are callable via
method interface and have names which conform to standard conventions
with the leading "rl_" stripped.
Almost methods have lower level functions in "Term::ReadLine::Gnu::XS"
package. To use them full qualified name is required. Using method
interface is preferred.
Readline Convenience Functions
Naming Function
"add_defun(NAME, FUNC [,KEY=-1])"
Add name to the Perl function "FUNC". If optional argument
"KEY" is specified, bind it to the "FUNC". Returns
reference to "FunctionPtr".
Example:
# name name `reverse-line' to a function reverse_line(),
# and bind it to "\C-t"
$term->add_defun('reverse-line', \&reverse_line, ord "\ct");
Selecting a Keymap
"make_bare_keymap"
Keymap rl_make_bare_keymap()
"copy_keymap(MAP)"
Keymap rl_copy_keymap(Keymap|str map)
"make_keymap"
Keymap rl_make_keymap()
"discard_keymap(MAP)"
Keymap rl_discard_keymap(Keymap|str map)
"free_keymap(MAP)"
void rl_free_keymap(Keymap|str map)
"get_keymap"
Keymap rl_get_keymap()
"set_keymap(MAP)"
Keymap rl_set_keymap(Keymap|str map)
"get_keymap_by_name(NAME)"
Keymap rl_get_keymap_by_name(str name)
"get_keymap_name(MAP)"
str rl_get_keymap_name(Keymap map)
Binding Keys
"bind_key(KEY, FUNCTION [,MAP])"
int rl_bind_key(int key, FunctionPtr|str function,
Keymap|str map = rl_get_keymap())
Bind "KEY" to the "FUNCTION". "FUNCTION" is the name added
by the "add_defun" method. If optional argument "MAP" is
specified, binds in "MAP". Returns non-zero in case of
error.
"bind_key_if_unbound(KEY, FUNCTION [,MAP])"
int rl_bind_key_if_unbound(int key, FunctionPtr|str function,
Keymap|str map = rl_get_keymap()) #GRL5.0
"unbind_key(KEY [,MAP])"
int rl_unbind_key(int key, Keymap|str map = rl_get_keymap())
Bind "KEY" to the null function. Returns non-zero in case
of error.
"unbind_function(FUNCTION [,MAP])"
int rl_unbind_function(FunctionPtr|str function,
Keymap|str map = rl_get_keymap())
"unbind_command(COMMAND [,MAP])"
int rl_unbind_command(str command,
Keymap|str map = rl_get_keymap())
"bind_keyseq(KEYSEQ, FUNCTION [,MAP])"
int rl_bind_keyseq(str keyseq, FunctionPtr|str function,
Keymap|str map = rl_get_keymap()) # GRL 5.0
"set_key(KEYSEQ, FUNCTION [,MAP])"
int rl_set_key(str keyseq, FunctionPtr|str function,
Keymap|str map = rl_get_keymap())
"bind_keyseq_if_unbound(KEYSEQ, FUNCTION [,MAP])"
int rl_bind_keyseq_if_unbound(str keyseq, FunctionPtr|str function,
Keymap|str map = rl_get_keymap()) # GRL 5.0
"generic_bind(TYPE, KEYSEQ, DATA, [,MAP])"
int rl_generic_bind(int type, str keyseq,
FunctionPtr|Keymap|str data,
Keymap|str map = rl_get_keymap())
"parse_and_bind(LINE)"
void rl_parse_and_bind(str line)
Parse "LINE" as if it had been read from the ~/.inputrc
file and perform any key bindings and variable assignments
found. For more detail see 'GNU Readline Library Manual'.
"read_init_file([FILENAME])"
int rl_read_init_file(str filename = '~/.inputrc')
Associating Function Names and Bindings
"named_function(NAME)"
FunctionPtr rl_named_function(str name)
"get_function_name(FUNCTION)"
str rl_get_function_name(FunctionPtr function)
"function_of_keyseq(KEYMAP [,MAP])"
(FunctionPtr|Keymap|str data, int type)
rl_function_of_keyseq(str keyseq,
Keymap|str map = rl_get_keymap())
"invoking_keyseqs(FUNCTION [,MAP])"
(@str) rl_invoking_keyseqs(FunctionPtr|str function,
Keymap|str map = rl_get_keymap())
"function_dumper([READABLE])"
void rl_function_dumper(int readable = 0)
"list_funmap_names"
void rl_list_funmap_names()
"funmap_names"
(@str) rl_funmap_names()
"add_funmap_entry(NAME, FUNCTION)"
int rl_add_funmap_entry(char *name, FunctionPtr|str function)
Allowing Undoing
"begin_undo_group"
int rl_begin_undo_group()
"end_undo_group"
int rl_end_undo_group()
"add_undo(WHAT, START, END, TEXT)"
int rl_add_undo(int what, int start, int end, str text)
"free_undo_list"
void rl_free_undo_list()
"do_undo"
int rl_do_undo()
"modifying([START [,END]])"
int rl_modifying(int start = 0, int end = rl_end)
Redisplay
"redisplay"
void rl_redisplay()
"forced_update_display"
int rl_forced_update_display()
"on_new_line"
int rl_on_new_line()
"on_new_line_with_prompt"
int rl_on_new_line_with_prompt() # GRL 4.1
"reset_line_state"
int rl_reset_line_state()rl_show_char(C)
int rl_show_char(int c)
"message(FMT[, ...])"
int rl_message(str fmt, ...)
"crlf"
int rl_crlf() # GRL 4.2
"clear_message"
int rl_clear_message()
"save_prompt"
void rl_save_prompt()
"restore_prompt"
void rl_restore_prompt()
"expand_prompt(PROMPT)"
int rl_expand_prompt(str prompt) # GRL 4.2
"set_prompt(PROMPT)"
int rl_set_prompt(const str prompt) # GRL 4.2
Modifying Text
"insert_text(TEXT)"
int rl_insert_text(str text)
"delete_text([START [,END]])"
int rl_delete_text(int start = 0, int end = rl_end)
"copy_text([START [,END]])"
str rl_copy_text(int start = 0, int end = rl_end)
"kill_text([START [,END]])"
int rl_kill_text(int start = 0, int end = rl_end)
"push_macro_input(MACRO)"
int rl_push_macro_input(str macro)
Character Input
"read_key"
int rl_read_key()
"getc(STREAM)"
int rl_getc(FILE *STREAM)
stuff_char(C)
int rl_stuff_char(int c)
execute_next(C)
int rl_execute_next(int c) # GRL 4.2
"clear_pending_input()"
int rl_clear_pending_input() # GRL 4.2
"set_keyboard_input_timeout(uSEC)"
int rl_set_keyboard_input_timeout(int usec) # GRL 4.2
Terminal Management
"prep_terminal(META_FLAG)"
void rl_prep_terminal(int META_FLAG) # GRL 4.2
"deprep_terminal()"
void rl_deprep_terminal() # GRL 4.2
"tty_set_default_bindings(KMAP)"
void rl_tty_set_default_bindings([Keymap KMAP]) # GRL 4.2
"tty_unset_default_bindings(KMAP)"
void rl_tty_unset_default_bindings([Keymap KMAP]) # GRL 5.0
"reset_terminal([TERMINAL_NAME])"
int rl_reset_terminal(str terminal_name = getenv($TERM)) # GRL 4.2
Utility Functions
"save_state(READLINE_STATE)"
NOT IMPLEMENTED YET!
int rl_save_state(struct readline_state *sp) # GRL 6.0
"restore_state(READLINE_STATE)"
NOT IMPLEMENTED YET!
int rl_restore_state(struct readline_state *sp) # GRL 6.0
"replace_line(TEXT [,CLEAR_UNDO])"
int rl_replace_line(str text, int clear_undo) # GRL 4.3
"initialize"
int rl_initialize()
"ding"
int rl_ding()alphabetic(C)
int rl_alphabetic(int C)
"display_match_list(MATCHES [,LEN [,MAX]])"
void rl_display_match_list(\@matches, len = $#maches, max) # GRL 4.0
Since the first element of an array @matches as treated as
a possible completion, it is not displayed. See the
descriptions of "completion_matches()".
When "MAX" is ommited, the max length of an item in
@matches is used.
Miscellaneous Functions
"macro_bind(KEYSEQ, MACRO [,MAP])"
int rl_macro_bind(const str keyseq, const str macro, Keymap map)
"macro_dumper(READABLE)"
int rl_macro_dumper(int readline)
"variable_bind(VARIABLE, VALUE)"
int rl_variable_bind(const str variable, const str value)
"variable_value(VARIABLE)"
str rl_variable_value(const str variable) # GRL 5.1
"variable_dumper(READABLE)"
int rl_variable_dumper(int readline)
"set_paren_blink_timeout(uSEC)"
int rl_set_paren_blink_timeout(usec) # GRL 4.2
"get_termcap(cap)"
str rl_get_termcap(cap)
Alternate Interface
"callback_handler_install(PROMPT, LHANDLER)"
void rl_callback_handler_install(str prompt, pfunc lhandler)
"callback_read_char"
void rl_callback_read_char()
"callback_handler_remove"
void rl_callback_handler_remove()
Readline Signal Handling
"cleanup_after_signal"
void rl_cleanup_after_signal() # GRL 4.0
"free_line_state"
void rl_free_line_state() # GRL 4.0
"reset_after_signal"
void rl_reset_after_signal() # GRL 4.0
"echo_signal_char"
void rl_echo_signal_char(int sig) # GRL 6.0
"resize_terminal"
void rl_resize_terminal() # GRL 4.0
"set_screen_size(ROWS, COLS)"
void rl_set_screen_size(int ROWS, int COLS) # GRL 4.2
"get_screen_size()"
(int rows, int cols) rl_get_screen_size() # GRL 4.2
"reset_screen_size()"
void rl_reset_screen_size() # GRL 5.1
"set_signals"
int rl_set_signals() # GRL 4.0
"clear_signals"
int rl_clear_signals() # GRL 4.0
Completion Functions
"complete_internal([WHAT_TO_DO])"
int rl_complete_internal(int what_to_do = TAB)
"completion_mode(FUNCTION)"
int rl_completion_mode(FunctionPtr|str function)
"completion_matches(TEXT [,FUNC])"
(@str) rl_completion_matches(str text,
pfunc func = filename_completion_function)
"filename_completion_function(TEXT, STATE)"
str rl_filename_completion_function(str text, int state)
"username_completion_function(TEXT, STATE)"
str rl_username_completion_function(str text, int state)
"list_completion_function(TEXT, STATE)"
str list_completion_function(str text, int state)
History Functions
Initializing History and State Management
"using_history"
void using_history()
History List Management
"addhistory(STRING[, STRING, ...])"
void add_history(str string)
"StifleHistory(MAX)"
int stifle_history(int max|undef)
stifles the history list, remembering only the last "MAX"
entries. If "MAX" is undef, remembers all entries. This
is a replacement of unstifle_history().
"unstifle_history"
int unstifle_history()
This is equivalent with 'stifle_history(undef)'.
"SetHistory(LINE1 [, LINE2, ...])"
sets the history of input, from where it can be used if the
actual "readline" is present.
"add_history_time(STRING)"
void add_history_time(str string) # GRL 5.0
"remove_history(WHICH)"
str remove_history(int which)
"replace_history_entry(WHICH, LINE)"
str replace_history_entry(int which, str line)
"clear_history"
void clear_history()
"history_is_stifled"
int history_is_stifled()
Information About the History List
"where_history"
int where_history()
"current_history"
str current_history()
"history_get(OFFSET)"
str history_get(offset)
"history_get_time(OFFSET)"
time_t history_get_time(offset)
"history_total_bytes"
int history_total_bytes()
"GetHistory"
returns the history of input as a list, if actual
"readline" is present.
Moving Around the History List
"history_set_pos(POS)"
int history_set_pos(int pos)
"previous_history"
str previous_history()
"next_history"
str next_history()
Searching the History List
"history_search(STRING [,DIRECTION])"
int history_search(str string, int direction = -1)
"history_search_prefix(STRING [,DIRECTION])"
int history_search_prefix(str string, int direction = -1)
"history_search_pos(STRING [,DIRECTION [,POS]])"
int history_search_pos(str string,
int direction = -1,
int pos = where_history())
Managing the History File
"ReadHistory([FILENAME [,FROM [,TO]]])"
int read_history(str filename = '~/.history',
int from = 0, int to = -1)
int read_history_range(str filename = '~/.history',
int from = 0, int to = -1)
adds the contents of "FILENAME" to the history list, a line
at a time. If "FILENAME" is false, then read from
~/.history. Start reading at line "FROM" and end at "TO".
If "FROM" is omitted or zero, start at the beginning. If
"TO" is omitted or less than "FROM", then read until the
end of the file. Returns true if successful, or false if
not. "read_history()" is an aliase of
"read_history_range()".
"WriteHistory([FILENAME])"
int write_history(str filename = '~/.history')
writes the current history to "FILENAME", overwriting
"FILENAME" if necessary. If "FILENAME" is false, then
write the history list to ~/.history. Returns true if
successful, or false if not.
"append_history(NELEMENTS [,FILENAME])"
int append_history(int nelements, str filename = '~/.history')
"history_truncate_file([FILENAME [,NLINES]])"
int history_truncate_file(str filename = '~/.history',
int nlines = 0)
History Expansion
"history_expand(LINE)"
(int result, str expansion) history_expand(str line)
Note that this function returns "expansion" in scalar
context.
"get_history_event(STRING, CINDEX [,QCHAR])"
(str text, int cindex) = get_history_event(str string,
int cindex,
char qchar = '\0')
"history_tokenize(LINE)"
(@str) history_tokenize(str line)
"history_arg_extract(LINE, [FIRST [,LAST]])"
str history_arg_extract(str line, int first = 0, int last = '$')
"Term::ReadLine::Gnu" Variables
Following GNU Readline/History Library variables can be accessed from
Perl program. See 'GNU Readline Library Manual' and ' GNU History
Library Manual' for each variable. You can access them with "Attribs"
methods. Names of keys in this hash conform to standard conventions
with the leading "rl_" stripped.
Examples:
$attribs = $term->Attribs;
$v = $attribs->{library_version}; # rl_library_version
$v = $attribs->{history_base}; # history_base
Readline Variables
str rl_line_buffer
int rl_point
int rl_end
int rl_mark
int rl_done
int rl_num_chars_to_read (GRL 4.2)
int rl_pending_input
int rl_dispatching (GRL 4.2)
int rl_erase_empty_line (GRL 4.0)
str rl_prompt (read only)
str rl_display_prompt (GRL 6.0)
int rl_already_prompted (GRL 4.1)
str rl_library_version (read only)
int rl_readline_version (read only)
int rl_gnu_readline_p (GRL 4.2)
str rl_terminal_name
str rl_readline_name
filehandle rl_instream
filehandle rl_outstream
int rl_prefer_env_winsize (GRL 5.1)
pfunc rl_last_func (GRL 4.2)
pfunc rl_startup_hook
pfunc rl_pre_input_hook (GRL 4.0)
pfunc rl_event_hook
pfunc rl_getc_function
pfunc rl_redisplay_function
pfunc rl_prep_term_function (GRL 4.2)
pfunc rl_deprep_term_function (GRL 4.2)
Keymap rl_executing_keymap (read only)
Keymap rl_binding_keymap (read only)
str rl_executing_macro (GRL 4.2)
int rl_readline_state (GRL 4.2)
int rl_explicit_arg (GRL 4.2)
int rl_numeric_arg (GRL 4.2)
int rl_editing_mode (GRL 4.2)
Signal Handling Variables
int rl_catch_signals (GRL 4.0)
int rl_catch_sigwinch (GRL 4.0)
Completion Variables
pfunc rl_completion_entry_function
pfunc rl_attempted_completion_function
pfunc rl_filename_quoting_function
pfunc rl_filename_dequoting_function
pfunc rl_char_is_quoted_p
int rl_completion_query_items
str rl_basic_word_break_characters
str rl_basic_quote_characters
str rl_completer_word_break_characters
pfunc rl_completion_word_break_hook (GRL 5.0)
str rl_completer_quote_characters
str rl_filename_quote_characters
str rl_special_prefixes
int rl_completion_append_character
int rl_completion_suppress_append (GRL 4.3)
int rl_completion_quote_charactor (GRL 5.0)
int rl_completion_suppress_quote (GRL 5.0)
int rl_completion_found_quote (GRL 5.0)
int rl_completion_mark_symlink_dirs (GRL 4.3)
int rl_ignore_completion_duplicates
int rl_filename_completion_desired
int rl_filename_quoting_desired
int rl_attempted_completion_over (GRL 4.2)
int rl_sort_completion_matches (GRL 6.0)
int rl_completion_type (GRL 4.2)
int rl_completion_invoking_key (GRL 6.0)
int rl_inhibit_completion
pfunc rl_ignore_some_completion_function
pfunc rl_directory_completion_hook
pfunc rl_completion_display_matches_hook (GRL 4.0)
History Variables
int history_base
int history_length
int history_max_entries (called `max_input_history'. read only)
int history_write_timestamps (GRL 5.0)
char history_expansion_char
char history_subst_char
char history_comment_char
str history_word_delimiters (GRL 4.2)
str history_no_expand_chars
str history_search_delimiter_chars
int history_quotes_inhibit_expansion
pfunc history_inhibit_expansion_function
Function References
rl_getc
rl_redisplay
rl_callback_read_char
rl_display_match_list
rl_filename_completion_function
rl_username_completion_function
list_completion_function
shadow_redisplay
Tk_getc
Custom Completion
In this section variables and functions for custom completion is
described with examples.
Most of descriptions in this section is cited from GNU Readline Library
manual.
"rl_completion_entry_function"
This variable holds reference refers to a generator function for
"completion_matches()".
A generator function is called repeatedly from
"completion_matches()", returning a string each time. The
arguments to the generator function are "TEXT" and "STATE". "TEXT"
is the partial word to be completed. "STATE" is zero the first
time the function is called, allowing the generator to perform any
necessary initialization, and a positive non-zero integer for each
subsequent call. When the generator function returns "undef" this
signals "completion_matches()" that there are no more possibilities
left.
If the value is undef, built-in "filename_completion_function" is
used.
A sample generator function, "list_completion_function", is defined
in Gnu.pm. You can use it as follows;
use Term::ReadLine;
...
my $term = new Term::ReadLine 'sample';
my $attribs = $term->Attribs;
...
$attribs->{completion_entry_function} =
$attribs->{list_completion_function};
...
$attribs->{completion_word} =
[qw(reference to a list of words which you want to use for completion)];
$term->readline("custom completion>");
See also "completion_matches".
"rl_attempted_completion_function"
A reference to an alternative function to create matches.
The function is called with "TEXT", "LINE_BUFFER", "START", and
"END". "LINE_BUFFER" is a current input buffer string. "START"
and "END" are indices in "LINE_BUFFER" saying what the boundaries
of "TEXT" are.
If this function exists and returns null list or "undef", or if
this variable is set to "undef", then an internal function
"rl_complete()" will call the value of
$rl_completion_entry_function to generate matches, otherwise the
array of strings returned will be used.
The default value of this variable is "undef". You can use it as
follows;
use Term::ReadLine;
...
my $term = new Term::ReadLine 'sample';
my $attribs = $term->Attribs;
...
sub sample_completion {
my ($text, $line, $start, $end) = @_;
# If first word then username completion, else filename completion
if (substr($line, 0, $start) =~ /^\s*$/) {
return $term->completion_matches($text,
$attribs->{'username_completion_function'});
} else {
return ();
}
}
...
$attribs->{attempted_completion_function} = \&sample_completion;
"completion_matches(TEXT, ENTRY_FUNC)"
Returns an array of strings which is a list of completions for
"TEXT". If there are no completions, returns "undef". The first
entry in the returned array is the substitution for "TEXT". The
remaining entries are the possible completions.
"ENTRY_FUNC" is a generator function which has two arguments, and
returns a string. The first argument is "TEXT". The second is a
state argument; it is zero on the first call, and non-zero on
subsequent calls. "ENTRY_FUNC" returns a "undef" to the caller
when there are no more matches.
If the value of "ENTRY_FUNC" is undef, built-in
"filename_completion_function" is used.
"completion_matches" is a Perl wrapper function of an internal
function "completion_matches()". See also
$rl_completion_entry_function.
"completion_function"
A variable whose content is a reference to a function which returns
a list of candidates to complete.
This variable is compatible with "Term::ReadLine::Perl" and very
easy to use.
use Term::ReadLine;
...
my $term = new Term::ReadLine 'sample';
my $attribs = $term->Attribs;
...
$attribs->{completion_function} = sub {
my ($text, $line, $start) = @_;
return qw(a list of candidates to complete);
}
"list_completion_function(TEXT, STATE)"
A sample generator function defined by "Term::ReadLine::Gnu".
Example code at "rl_completion_entry_function" shows how to use
this function.
"Term::ReadLine::Gnu" Specific Features
"Term::ReadLine::Gnu" Specific Functions
"CallbackHandlerInstall(PROMPT, LHANDLER)"
This method provides the function
"rl_callback_handler_install()" with the following addtional
feature compatible with "readline" method; ornament feature,
"Term::ReadLine::Perl" compatible completion function, histroy
expansion, and addition to history buffer.
"call_function(FUNCTION, [COUNT [,KEY]])"
int rl_call_function(FunctionPtr|str function, count = 1, key = -1)
"rl_get_all_function_names"
Returns a list of all function names.
"shadow_redisplay"
A redisplay function for password input. You can use it as
follows;
$attribs->{redisplay_function} = $attribs->{shadow_redisplay};
$line = $term->readline("password> ");
"rl_filename_list"
Returns candidates of filename to complete. This function can
be used with "completion_function" and is implemented for the
compatibility with "Term::ReadLine::Perl".
"list_completion_function"
See the description of section "Custom Completion".
"Term::ReadLine::Gnu" Specific Variables
"do_expand"
When true, the history expansion is enabled. By default false.
"completion_function"
See the description of section "Custom Completion".
"completion_word"
A reference to a list of candidates to complete for
"list_completion_function".
"Term::ReadLine::Gnu" Specific Commands
"history-expand-line"
The equivalent of the Bash "history-expand-line" editing
command.
"operate-and-get-next"
The equivalent of the Korn shell
"operate-and-get-next-history-line" editing command and the
Bash "operate-and-get-next".
This command is bound to "\C-o" by default for the
compatibility with the Bash and "Term::ReadLine::Perl".
"display-readline-version"
Shows the version of "Term::ReadLine::Gnu" and the one of the
GNU Readline Library.
"change-ornaments"
Change ornaments interactively.
FILES
~/.inputrc
Readline init file. Using this file it is possible that you would
like to use a different set of key bindings. When a program which
uses the Readline library starts up, the init file is read, and the
key bindings are set.
Conditional key binding is also available. The program name which
is specified by the first argument of "new" method is used as the
application construct.
For example, when your program call "new" method like this;
...
$term = new Term::ReadLine 'PerlSh';
...
your ~/.inputrc can define key bindings only for it as follows;
...
$if PerlSh
Meta-Rubout: backward-kill-word
"\C-x\C-r": re-read-init-file
"\e[11~": "Function Key 1"
$endif
...
EXPORTS
None.
SEE ALSO
GNU Readline Library Manual
GNU History Library Manual
"Term::ReadLine"
"Term::ReadLine::Perl" (Term-ReadLine-Perl-xx.tar.gz)
eg/* and t/* in the Term::ReadLine::Gnu distribution
Articles related to Term::ReadLine::Gnu
effective perl programming
http://www.usenix.org/publications/login/2000-7/features/effective.html
This article demonstrates how to integrate Term::ReadLine::Gnu
into an interactive command line program.
eijiro (Japanese)
http://bulknews.net/lib/columns/02_eijiro/column.html
A command line interface to Eijiro, Japanese-English dictionary
service on WWW.
Works which use Term::ReadLine::Gnu
Perl Debugger
perl -d
The Perl Shell (psh)
http://www.focusresearch.com/gregor/psh/
The Perl Shell is a shell that combines the interactive nature
of a Unix shell with the power of Perl.
A programmable completion feature compatible with bash is
implemented.
SPP (Synopsys Plus Perl)
http://www.stanford.edu/~jsolomon/SPP/
SPP (Synopsys Plus Perl) is a Perl module that wraps around
Synopsys' shell programs. SPP is inspired by the original
dc_perl written by Steve Golson, but it's an entirely new
implementation. Why is it called SPP and not dc_perl? Well,
SPP was written to wrap around any of Synopsys' shells.
PFM (Personal File Manager for Unix/Linux)
http://p-f-m.sourceforge.net/
Pfm is a terminal-based file manager written in Perl, based on
PFM.COM for MS-DOS (originally by Paul Culley and Henk de
Heer).
The soundgrab
http://rawrec.sourceforge.net/soundgrab/soundgrab.html
soundgrab is designed to help you slice up a big long raw audio
file (by default 44.1 kHz 2 channel signed sixteen bit little
endian) and save your favorite sections to other files. It does
this by providing you with a cassette player like command line
interface.
PDL (The Perl Data Language)
http://pdl.perl.org/index_en.html
PDL (``Perl Data Language'') gives standard Perl the ability to
compactly store and speedily manipulate the large N-dimensional
data arrays which are the bread and butter of scientific
computing.
PIQT (Perl Interactive DBI Query Tool)
http://piqt.sourceforge.net/
PIQT is an interactive query tool using the Perl DBI database
interface. It supports ReadLine, provides a built in scripting
language with a Lisp like syntax, an online help system, and
uses wrappers to interface to the DBD modules.
Ghostscript Shell
http://www.panix.com/~jdf/gshell/
It provides a friendly way to play with the Ghostscript
interpreter, including command history and auto-completion of
Postscript font names and reserved words.
vshnu (the New Visual Shell)
http://www.cs.indiana.edu/~kinzler/vshnu/
A visual shell and CLI shell supplement.
If you know any other works which can be listed here, please let me
know.
AUTHOR
Hiroo Hayashi "<hiroo.hayashi@computer.org>"
"http://www.perl.org/CPAN/authors/Hiroo_HAYASHI/"
TODO
GTK+ support in addition to Tk.
BUGS
"rl_add_defun()" can define up to 16 functions.
Ornament feature works only on prompt strings. It requires very hard
hacking of "display.c:rl_redisplay()" in GNU Readline library to
ornament input line.
"newTTY()" is not tested yet.
perl v5.18.1 2010-05-02 Gnu(3)
