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-rwxr-xr-xMaster/tlpkg/tlperl.straw/lib/Term/ReadLine/Perl.pm153
-rwxr-xr-xMaster/tlpkg/tlperl.straw/lib/Term/ReadLine/readline.pm4615
2 files changed, 4768 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl.straw/lib/Term/ReadLine/Perl.pm b/Master/tlpkg/tlperl.straw/lib/Term/ReadLine/Perl.pm
new file mode 100755
index 00000000000..599b2c3769a
--- /dev/null
+++ b/Master/tlpkg/tlperl.straw/lib/Term/ReadLine/Perl.pm
@@ -0,0 +1,153 @@
+package Term::ReadLine::Perl;
+use Carp;
+@ISA = qw(Term::ReadLine::Stub Term::ReadLine::Compa Term::ReadLine::Perl::AU);
+#require 'readline.pl';
+
+$VERSION = $VERSION = 1.0303;
+
+sub readline {
+ shift;
+ #my $in =
+ &readline::readline(@_);
+ #$loaded = defined &Term::ReadKey::ReadKey;
+ #print STDOUT "\nrl=`$in', loaded = `$loaded'\n";
+ #if (ref \$in eq 'GLOB') { # Bug under debugger
+ # ($in = "$in") =~ s/^\*(\w+::)+//;
+ #}
+ #print STDOUT "rl=`$in'\n";
+ #$in;
+}
+
+#sub addhistory {}
+*addhistory = \&AddHistory;
+
+#$term;
+$readline::minlength = 1; # To peacify -w
+$readline::rl_readline_name = undef; # To peacify -w
+$readline::rl_basic_word_break_characters = undef; # To peacify -w
+
+sub new {
+ if (defined $term) {
+ warn "Cannot create second readline interface, falling back to dumb.\n";
+ return Term::ReadLine::Stub::new(@_);
+ }
+ shift; # Package
+ if (@_) {
+ if ($term) {
+ warn "Ignoring name of second readline interface.\n" if defined $term;
+ shift;
+ } else {
+ $readline::rl_readline_name = shift; # Name
+ }
+ }
+ if (!@_) {
+ if (!defined $term) {
+ ($IN,$OUT) = Term::ReadLine->findConsole();
+ # Old Term::ReadLine did not have a workaround for a bug in Win devdriver
+ $IN = 'CONIN$' if $^O eq 'MSWin32' and "\U$IN" eq 'CON';
+ open IN,
+ # A workaround for another bug in Win device driver
+ (($IN eq 'CONIN$' and $^O eq 'MSWin32') ? "+< $IN" : "< $IN")
+ or croak "Cannot open $IN for read";
+ open(OUT,">$OUT") || croak "Cannot open $OUT for write";
+ $readline::term_IN = \*IN;
+ $readline::term_OUT = \*OUT;
+ }
+ } else {
+ if (defined $term and ($term->IN ne $_[0] or $term->OUT ne $_[1]) ) {
+ croak "Request for a second readline interface with different terminal";
+ }
+ $readline::term_IN = shift;
+ $readline::term_OUT = shift;
+ }
+ eval {require Term::ReadLine::readline}; die $@ if $@;
+ # The following is here since it is mostly used for perl input:
+ # $readline::rl_basic_word_break_characters .= '-:+/*,[])}';
+ $term = bless [$readline::term_IN,$readline::term_OUT];
+ unless ($ENV{PERL_RL} and $ENV{PERL_RL} =~ /\bo\w*=0/) {
+ local $Term::ReadLine::termcap_nowarn = 1; # With newer Perls
+ local $SIG{__WARN__} = sub {}; # With older Perls
+ $term->ornaments(1);
+ }
+ return $term;
+}
+sub newTTY {
+ my ($self, $in, $out) = @_;
+ $readline::term_IN = $self->[0] = $in;
+ $readline::term_OUT = $self->[1] = $out;
+ my $sel = select($out);
+ $| = 1; # for DB::OUT
+ select($sel);
+}
+sub ReadLine {'Term::ReadLine::Perl'}
+sub MinLine {
+ my $old = $readline::minlength;
+ $readline::minlength = $_[1] if @_ == 2;
+ return $old;
+}
+sub SetHistory {
+ shift;
+ @readline::rl_History = @_;
+ $readline::rl_HistoryIndex = @readline::rl_History;
+}
+sub GetHistory {
+ @readline::rl_History;
+}
+sub AddHistory {
+ shift;
+ push @readline::rl_History, @_;
+ $readline::rl_HistoryIndex = @readline::rl_History + @_;
+}
+%features = (appname => 1, minline => 1, autohistory => 1, getHistory => 1,
+ setHistory => 1, addHistory => 1, preput => 1,
+ attribs => 1, 'newTTY' => 1,
+ tkRunning => Term::ReadLine::Stub->Features->{'tkRunning'},
+ ornaments => Term::ReadLine::Stub->Features->{'ornaments'},
+ );
+sub Features { \%features; }
+# my %attribs;
+tie %attribs, 'Term::ReadLine::Perl::Tie' or die ;
+sub Attribs {
+ \%attribs;
+}
+sub DESTROY {}
+
+package Term::ReadLine::Perl::AU;
+
+sub AUTOLOAD {
+ { $AUTOLOAD =~ s/.*:://; } # preserve match data
+ my $name = "readline::rl_$AUTOLOAD";
+ die "Unknown method `$AUTOLOAD' in Term::ReadLine::Perl"
+ unless exists $readline::{"rl_$AUTOLOAD"};
+ *$AUTOLOAD = sub { shift; &$name };
+ goto &$AUTOLOAD;
+}
+
+package Term::ReadLine::Perl::Tie;
+
+sub TIEHASH { bless {} }
+sub DESTROY {}
+
+sub STORE {
+ my ($self, $name) = (shift, shift);
+ $ {'readline::rl_' . $name} = shift;
+}
+sub FETCH {
+ my ($self, $name) = (shift, shift);
+ $ {'readline::rl_' . $name};
+}
+
+package Term::ReadLine::Compa;
+
+sub get_c {
+ my $self = shift;
+ getc($self->[0]);
+}
+
+sub get_line {
+ my $self = shift;
+ my $fh = $self->[0];
+ scalar <$fh>;
+}
+
+1;
diff --git a/Master/tlpkg/tlperl.straw/lib/Term/ReadLine/readline.pm b/Master/tlpkg/tlperl.straw/lib/Term/ReadLine/readline.pm
new file mode 100755
index 00000000000..a19ddb19a9a
--- /dev/null
+++ b/Master/tlpkg/tlperl.straw/lib/Term/ReadLine/readline.pm
@@ -0,0 +1,4615 @@
+##
+## Perl Readline -- The Quick Help
+## (see the manual for complete info)
+##
+## Once this package is included (require'd), you can then call
+## $text = &readline'readline($input);
+## to get lines of input from the user.
+##
+## Normally, it reads ~/.inputrc when loaded... to suppress this, set
+## $readline'rl_NoInitFromFile = 1;
+## before requiring the package.
+##
+## Call rl_bind to add your own key bindings, as in
+## &readline'rl_bind('C-L', 'possible-completions');
+##
+## Call rl_set to set mode variables yourself, as in
+## &readline'rl_set('TcshCompleteMode', 'On');
+##
+## To change the input mode (emacs or vi) use ~/.inputrc or call
+## &readline::rl_set('EditingMode', 'vi');
+## or &readline::rl_set('EditingMode', 'emacs');
+##
+## Call rl_basic_commands to set your own command completion, as in
+## &readline'rl_basic_commands('print', 'list', 'quit', 'run', 'status');
+##
+##
+
+# Wrap the code below (initially Perl4, now partially Perl4) into a fake
+# Perl5 pseudo-module; mismatch of package and file name is intentional
+# to make is harder to abuse this (very fragile) code...
+package readline;
+
+my $autoload_broken = 1; # currently: defined does not work with a-l
+my $useioctl = 1;
+my $usestty = 1;
+my $max_include_depth = 10; # follow $include's in init files this deep
+
+BEGIN { # Some old systems have ioctl "unsupported"
+ *ioctl = sub ($$$) { eval { ioctl $_[0], $_[1], $_[2] } };
+}
+
+##
+## BLURB:
+## A pretty full-function package similar to GNU's readline.
+## Includes support for EUC-encoded Japanese text.
+##
+## Written by Jeffrey Friedl, Omron Corporation (jfriedl@omron.co.jp)
+##
+## Comments, corrections welcome.
+##
+## Thanks to the people at FSF for readline (and the code I referenced
+## while writing this), and for Roland Schemers whose line_edit.pl I used
+## as an early basis for this.
+##
+$VERSION = $VERSION = '1.0303';
+
+## - Changes from Slaven Rezic (slaven@rezic.de):
+## * reverted the usage of $ENV{EDITOR} to set startup mode
+## only ~/.inputrc or an explicit call to rl_set should
+## be used to set startup mode
+##
+# 1011109.011 - Changes from Russ Southern (russ@dvns.com):
+## * Added $rl_vi_replace_default_on_insert
+# 1000510.010 - Changes from Joe Petolino (petolino@eng.sun.com), requested
+## by Ilya:
+##
+## * Make it compatible with perl 5.003.
+## * Rename getc() to getc_with_pending().
+## * Change unshift(@Pending) to push(@Pending).
+##
+## 991109.009 - Changes from Joe Petolino (petolino@eng.sun.com):
+## Added vi mode. Also added a way to set the keymap default
+## action for multi-character keymaps, so that a 2-character
+## sequence (e.g. <esc>A) can be treated as two one-character
+## commands (<esc>, then A) if the sequence is not explicitly
+## mapped.
+##
+## Changed subs:
+##
+## * preinit(): Initialize new keymaps and other data structures.
+## Use $ENV{EDITOR} to set startup mode.
+##
+## * init(): Sets the global *KeyMap, since &F_ReReadInitFile
+## may have changed the key map.
+##
+## * InitKeymap(): $KeyMap{default} is now optional - don't
+## set it if $_[1] eq '';
+##
+## * actually_do_binding(): Set $KeyMap{default} for '\*' key;
+## warning if double-defined.
+##
+## * rl_bind(): Implement \* to set the keymap default. Also fix
+## some existing regex bugs that I happened to notice.
+##
+## * readline(): No longer takes input from $pending before
+## calling &$rl_getc(); instead, it calls getc_with_pending(),
+## which takes input from the new array @Pending
+## before calling &$rl_getc(). Sets the global
+## *KeyMap after do_command(), since do_command()
+## may change the keymap now. Does some cursor
+## manipulation after do_command() when at the end
+## of the line in vi command mode, to match the
+## behavior of vi.
+##
+## * rl_getc(): Added a my declaration for $key, which was
+## apparently omitted by the author. rl_getc() is
+## no longer called directly; instead, getc_with_pending() calls
+## it only after exhausting any requeued characters
+## in @Pending. @Pending is used to implement the
+## vi '.' command, as well as the emacs DoSearch
+## functionality.
+##
+## * do_command(): Now defaults the command to 'F_Ding' if
+## $KeyMap{default} is undefined. This is part
+## of the new \* feature.
+##
+## * savestate()/getstate(): Now use an anonymous array instead
+## of packing the fields into a string.
+##
+## * F_AcceptLine(): Code moved to new sub add_line_to_history(),
+## so that it may be called by F_SaveLine()
+## as well as by F_AcceptLine().
+##
+## * F_QuotedInsert(): Calls getc_with_pending() instead of &$rl_getc().
+##
+## * F_UnixWordRubout(): Fixed bug: changed 'my' declaration of
+## global $rl_basic_word_break_characters to 'local'.
+##
+## * DoSearch(): Calls getc_with_pending() instead of &$rl_getc(). Ungets
+## character onto @Pending instead of $pending.
+##
+## * F_EmacsEditingMode(): Resets global $Vi_mode;
+##
+## * F_ToggleEditingMode(): Deleted. We use F_ViInput() and
+## F_EmacsEditingMode() instead.
+##
+## * F_PrefixMeta(): Calls getc_with_pending() instead of &$rl_getc().
+##
+## * F_DigitArgument(): Calls getc_with_pending() instead of &$rl_getc().
+##
+## * F_Ding(): Returns undef, for testing by vi commands.
+##
+## * F_Complete(): Returns true if a completion was done, false
+## otherwise, so vi completion routines can test it.
+##
+## * complete_internal(): Returns true if a completion was done,
+## false otherwise, so vi completion routines can
+## test it. Does a little cursor massaging in vi
+## mode, to match the behavior of ksh vi mode.
+##
+## Disclaimer: the original code dates from the perl 4 days, and
+## isn't very pretty by today's standards (for example,
+## extensive use of typeglobs and localized globals). In the
+## interests of not breaking anything, I've tried to preserve
+## the old code as much as possible, and I've avoided making
+## major stylistic changes. Since I'm not a regular emacs user,
+## I haven't done much testing to see that all the emacs-mode
+## features still work.
+##
+## 940817.008 - Added $var_CompleteAddsuffix.
+## Now recognizes window-change signals (at least on BSD).
+## Various typos and bug fixes.
+## Changes from Chris Arthur (csa@halcyon.com):
+## Added a few new keybindings.
+## Various typos and bug fixes.
+## Support for use from a dumb terminal.
+## Pretty-printing of filename-completion matches.
+##
+## 930306.007 - Added rl_start_default_at_beginning.
+## Added optional message arg to &redisplay.
+## Added explicit numeric argument var to functions that use it.
+## Redid many commands to simplify.
+## Added TransposeChars, UpcaseWord, CapitalizeWord, DownCaseWord.
+## Redid key binding specs to better match GNU.. added
+## undocumented "new-style" bindings.... can now bind
+## arrow keys and other arbitrairly long key sequences.
+## Added if/else/then to .inputrc.
+##
+## 930305.006 - optional "default" added (from mmuegel@cssmp.corp.mot.com).
+##
+## 930211.005 - fixed strange problem with eval while keybinding
+##
+
+##
+## Ilya:
+##
+## Added support for ReadKey,
+##
+## Added customization variable $minlength
+## to denote minimal lenth of a string to be put into history buffer.
+##
+## Added support for a bug in debugger: preinit cannot be a subroutine ?!!!
+## (See immendiately below)
+##
+## Added support for WINCH hooks. The subroutine references should be put into
+## @winchhooks.
+##
+## Added F_ToggleInsertMode, F_HistorySearchBackward,
+## F_HistorySearchForward, PC keyboard bindings.
+## 0.93: Updates to Operate, couple of keybindings added.
+## $rl_completer_terminator_character, $rl_correct_sw added.
+## Reload-init-file moved to C-x C-x.
+## C-x ? and C-x * list/insert possible completions.
+
+$rl_getc = \&rl_getc;
+
+&preinit;
+&init;
+
+# # # # use strict 'vars';
+
+# # # # # Separation into my and vars needs some thought...
+
+# # # # use vars qw(@KeyMap %KeyMap $rl_screen_width $rl_start_default_at_beginning
+# # # # $rl_completion_function $rl_basic_word_break_characters
+# # # # $rl_completer_word_break_characters $rl_special_prefixes
+# # # # $rl_readline_name @rl_History $rl_MaxHistorySize
+# # # # $rl_max_numeric_arg $rl_OperateCount
+# # # # $KillBuffer $dumb_term $stdin_not_tty $InsertMode
+# # # # $rl_NoInitFromFile);
+
+# # # # my ($InputLocMsg, $term_OUT, $term_IN);
+# # # # my ($winsz_t, $TIOCGWINSZ, $winsz, $rl_margin, $hooj, $force_redraw);
+# # # # my ($hook, %var_HorizontalScrollMode, %var_EditingMode, %var_OutputMeta);
+# # # # my ($var_HorizontalScrollMode, $var_EditingMode, $var_OutputMeta);
+# # # # my (%var_ConvertMeta, $var_ConvertMeta, %var_MarkModifiedLines, $var_MarkModifiedLines);
+# # # # my ($term_readkey, $inDOS);
+# # # # my (%var_PreferVisibleBell, $var_PreferVisibleBell);
+# # # # my (%var_TcshCompleteMode, $var_TcshCompleteMode);
+# # # # my (%var_CompleteAddsuffix, $var_CompleteAddsuffix);
+# # # # my ($minlength, @winchhooks);
+# # # # my ($BRKINT, $ECHO, $FIONREAD, $ICANON, $ICRNL, $IGNBRK, $IGNCR, $INLCR,
+# # # # $ISIG, $ISTRIP, $NCCS, $OPOST, $RAW, $TCGETS, $TCOON, $TCSETS, $TCXONC,
+# # # # $TERMIOS_CFLAG, $TERMIOS_IFLAG, $TERMIOS_LFLAG, $TERMIOS_NORMAL_IOFF,
+# # # # $TERMIOS_NORMAL_ION, $TERMIOS_NORMAL_LOFF, $TERMIOS_NORMAL_LON,
+# # # # $TERMIOS_NORMAL_OOFF, $TERMIOS_NORMAL_OON, $TERMIOS_OFLAG,
+# # # # $TERMIOS_READLINE_IOFF, $TERMIOS_READLINE_ION, $TERMIOS_READLINE_LOFF,
+# # # # $TERMIOS_READLINE_LON, $TERMIOS_READLINE_OOFF, $TERMIOS_READLINE_OON,
+# # # # $TERMIOS_VMIN, $TERMIOS_VTIME, $TIOCGETP, $TIOCGWINSZ, $TIOCSETP,
+# # # # $fion, $fionread_t, $mode, $sgttyb_t,
+# # # # $termios, $termios_t, $winsz, $winsz_t);
+# # # # my ($line, $initialized, $term_readkey);
+
+
+# # # # # Global variables added for vi mode (I'm leaving them all commented
+# # # # # out, like the declarations above, until SelfLoader issues
+# # # # # are resolved).
+
+# # # # # True when we're in one of the vi modes.
+# # # # my $Vi_mode;
+
+# # # # # Array refs: saves keystrokes for '.' command. Undefined when we're
+# # # # # not doing a '.'-able command.
+# # # # my $Dot_buf; # Working buffer
+# # # # my $Last_vi_command; # Gets $Dot_buf when a command is parsed
+
+# # # # # These hold state for vi 'u' and 'U'.
+# # # # my($Dot_state, $Vi_undo_state, $Vi_undo_all_state);
+
+# # # # # Refs to hashes used for cursor movement
+# # # # my($Vi_delete_patterns, $Vi_move_patterns,
+# # # # $Vi_change_patterns, $Vi_yank_patterns);
+
+# # # # # Array ref: holds parameters from the last [fFtT] command, for ';'
+# # # # # and ','.
+# # # # my $Last_findchar;
+
+# # # # # Globals for history search commands (/, ?, n, N)
+# # # # my $Vi_search_re; # Regular expression (compiled by qr{})
+# # # # my $Vi_search_reverse; # True for '?' search, false for '/'
+
+
+##
+## What's Cool
+## ----------------------------------------------------------------------
+## * hey, it's in perl.
+## * Pretty full GNU readline like library...
+## * support for ~/.inputrc
+## * horizontal scrolling
+## * command/file completion
+## * rebinding
+## * history (with search)
+## * undo
+## * numeric prefixes
+## * supports multi-byte characters (at least for the Japanese I use).
+## * Has a tcsh-like completion-function mode.
+## call &readline'rl_set('tcsh-complete-mode', 'On') to turn on.
+##
+
+##
+## What's not Cool
+## ----------------------------------------------------------------------
+## Can you say HUGE?
+## I can't spell, so comments riddled with misspellings.
+## Written by someone that has never really used readline.
+## History mechanism is slightly different than GNU... may get fixed
+## someday, but I like it as it is now...
+## Killbuffer not a ring.. just one level.
+## Obviously not well tested yet.
+## Written by someone that doesn't have a bell on his terminal, so
+## proper readline use of the bell may not be here.
+##
+
+
+##
+## Functions beginning with F_ are functions that are mapped to keys.
+## Variables and functions beginning rl_ may be accessed/set/called/read
+## from outside the package. Other things are internal.
+##
+## Some notable internal-only variables of global proportions:
+## $prompt -- line prompt (passed from user)
+## $line -- the line being input
+## $D -- ``Dot'' -- index into $line of the cursor's location.
+## $InsertMode -- usually true. False means overwrite mode.
+## $InputLocMsg -- string for error messages, such as "[~/.inputrc line 2]"
+## *emacs_keymap -- keymap for emacs-mode bindings:
+## @emacs_keymap - bindings indexed by ASCII ordinal
+## $emacs_keymap{'name'} = "emacs_keymap"
+## $emacs_keymap{'default'} = "SelfInsert" (default binding)
+## *vi_keymap -- keymap for vi input mode bindings
+## *vicmd_keymap -- keymap for vi command mode bindings
+## *vipos_keymap -- keymap for vi positioning command bindings
+## *visearch_keymap -- keymap for vi search pattern input mode bindings
+## *KeyMap -- current keymap in effect.
+## $LastCommandKilledText -- needed so that subsequent kills accumulate
+## $lastcommand -- name of command previously run
+## $lastredisplay -- text placed upon screen during previous &redisplay
+## $si -- ``screen index''; index into $line of leftmost char &redisplay'ed
+## $force_redraw -- if set to true, causes &redisplay to be verbose.
+## $AcceptLine -- when set, its value is returned from &readline.
+## $ReturnEOF -- unless this also set, in which case undef is returned.
+## @Pending -- characters to be used as input.
+## @undo -- array holding all states of current line, for undoing.
+## $KillBuffer -- top of kill ring (well, don't have a kill ring yet)
+## @tcsh_complete_selections -- for tcsh mode, possible selections
+##
+## Some internal variables modified by &rl_set (see comment at &rl_set for
+## info about how these set'able variables work)
+## $var_EditingMode -- a keymap typeglob like *emacs_keymap or *vi_keymap
+## $var_TcshCompleteMode -- if true, the completion function works like
+## in tcsh. That is, the first time you try to complete something,
+## the common prefix is completed for you. Subsequent completion tries
+## (without other commands in between) cycles the command line through
+## the various possibilities. If/when you get the one you want, just
+## continue typing.
+## Other $var_ things not supported yet.
+##
+## Some variables used internally, but may be accessed from outside...
+## $VERSION -- just for good looks.
+## $rl_readline_name = name of program -- for .initrc if/endif stuff.
+## $rl_NoInitFromFile -- if defined when package is require'd, ~/.inputrc
+## will not be read.
+## @rl_History -- array of previous lines input
+## $rl_HistoryIndex -- history pointer (for moving about history array)
+## $rl_completion_function -- see "How Command Completion Works" (way) below.
+## $rl_basic_word_break_characters -- string of characters that can cause
+## a word break for forward-word, etc.
+## $rl_start_default_at_beginning --
+## Normally, the user's cursor starts at the end of any default text
+## passed to readline. If this variable is true, it starts at the
+## beginning.
+## $rl_completer_word_break_characters --
+## like $rl_basic_word_break_characters (and in fact defaults to it),
+## but for the completion function.
+## $rl_completer_terminator_character -- what to insert to separate
+## a completed token from the rest. Reset at beginning of
+## completion to ' ' so completion function can change it.
+## $rl_special_prefixes -- characters that are part of this string as well
+## as of $rl_completer_word_break_characters cause a word break for the
+## completer function, but remain part of the word. An example: consider
+## when the input might be perl code, and one wants to be able to
+## complete on variable and function names, yet still have the '$',
+## '&', '@',etc. part of the $text to be completed. Then set this var
+## to '&@$%' and make sure each of these characters is in
+## $rl_completer_word_break_characters as well....
+## $rl_MaxHistorySize -- maximum size that the history array may grow.
+## $rl_screen_width -- width readline thinks it can use on the screen.
+## $rl_correct_sw -- is substructed from the real width of the terminal
+## $rl_margin -- scroll by moving to within this far from a margin.
+## $rl_CLEAR -- what to output to clear the screen.
+## $rl_max_numeric_arg -- maximum numeric arg allowed.
+## $rl_vi_replace_default_on_insert
+## Normally, the text you enter is added to any default text passed to
+## readline. If this variable is true, default text will start out
+## highlighted (if supported by your terminal) and text entered while the
+## default is highlighted (during the _first_ insert mode only) will
+## replace the entire default line. Once you have left insert mode (hit
+## escape), everything works as normal.
+## - This is similar to many GUI controls' behavior, which select the
+## default text so that new text replaces the old.
+## - Use with $rl_start_default_at_beginning for normal-looking behavior
+## (though it works just fine without it).
+## Notes/Bugs:
+## - Control characters (like C-w) do not actually terminate this replace
+## mode, for the same reason it does not work in emacs mode.
+## - Spine-crawlingly scary subroutine redefinitions
+## $rl_mark - start of the region
+## $line_rl_mark - the line on which $rl_mark is active
+## $_rl_japanese_mb - For character movement suppose Japanese (which?!)
+## multi-byte encoding. (How to make a sane default?)
+##
+
+sub get_window_size
+{
+ my $sig = shift;
+ local($., $@, $!, $^E, $?); # Preserve $! etc; the rest for hooks
+ my ($num_cols,$num_rows);
+
+ if (defined $term_readkey) {
+ ($num_cols,$num_rows) = Term::ReadKey::GetTerminalSize($term_OUT);
+ $rl_screen_width = $num_cols - $rl_correct_sw
+ if defined($num_cols) && $num_cols;
+ } elsif (defined $TIOCGWINSZ and &ioctl($term_IN,$TIOCGWINSZ,$winsz)) {
+ ($num_rows,$num_cols) = unpack($winsz_t,$winsz);
+ $rl_screen_width = $num_cols - $rl_correct_sw
+ if defined($num_cols) && $num_cols;
+ }
+ $rl_margin = int($rl_screen_width/3);
+ if (defined $sig) {
+ $force_redraw = 1;
+ &redisplay();
+ }
+
+ for $hook (@winchhooks) {
+ eval {&$hook()}; warn $@ if $@ and $^W;
+ }
+ local $^W = 0; # WINCH may be illegal...
+ $SIG{'WINCH'} = "readline::get_window_size";
+}
+
+# Fix: case-sensitivity of inputrc on/off keywords in
+# `set' commands. readline lib doesn't care about case.
+# changed case of keys 'On' and 'Off' to 'on' and 'off'
+# &rl_set changed so that it converts the value to
+# lower case before hash lookup.
+sub preinit
+{
+ ## Set up the input and output handles
+
+ $term_IN = \*STDIN unless defined $term_IN;
+ $term_OUT = \*STDOUT unless defined $term_OUT;
+ ## not yet supported... always on.
+ $var_HorizontalScrollMode = 1;
+ $var_HorizontalScrollMode{'On'} = 1;
+ $var_HorizontalScrollMode{'Off'} = 0;
+
+ $var_EditingMode{'emacs'} = *emacs_keymap;
+ $var_EditingMode{'vi'} = *vi_keymap;
+ $var_EditingMode{'vicmd'} = *vicmd_keymap;
+ $var_EditingMode{'vipos'} = *vipos_keymap;
+ $var_EditingMode{'visearch'} = *visearch_keymap;
+
+ ## this is an addition. Very nice.
+ $var_TcshCompleteMode = 0;
+ $var_TcshCompleteMode{'On'} = 1;
+ $var_TcshCompleteMode{'Off'} = 0;
+
+ $var_CompleteAddsuffix = 1;
+ $var_CompleteAddsuffix{'On'} = 1;
+ $var_CompleteAddsuffix{'Off'} = 0;
+
+ $var_DeleteSelection = $var_DeleteSelection{'On'} = 1;
+ $var_DeleteSelection{'Off'} = 0;
+ *rl_delete_selection = \$var_DeleteSelection; # Alias
+
+ ## not yet supported... always on
+ for ('InputMeta', 'OutputMeta') {
+ ${"var_$_"} = 1;
+ ${"var_$_"}{'Off'} = 0;
+ ${"var_$_"}{'On'} = 1;
+ }
+
+ ## not yet supported... always off
+ for ('ConvertMeta', 'MetaFlag', 'MarkModifiedLines', 'PreferVisibleBell',
+ 'BlinkMatchingParen', 'VisibleStats', 'ShowAllIfAmbiguous',
+ 'PrintCompletionsHorizontally', 'MarkDirectories', 'ExpandTilde',
+ 'EnableKeypad', 'DisableCompletion', 'CompletionIgnoreCase') {
+ ${"var_$_"} = 0;
+ ${"var_$_"}{'Off'} = 0;
+ ${"var_$_"}{'On'} = 1;
+ }
+
+ # To conform to interface
+ $minlength = 1 unless defined $minlength;
+
+ # WINCH hooks
+ @winchhooks = ();
+
+ $inDOS = $^O eq 'os2' || defined $ENV{OS2_SHELL} unless defined $inDOS;
+ eval {
+ require Term::ReadKey; $term_readkey++;
+ } unless defined $ENV{PERL_RL_USE_TRK}
+ and not $ENV{PERL_RL_USE_TRK};
+ unless ($term_readkey) {
+ eval {require "ioctl.pl"}; ## try to get, don't die if not found.
+ eval {require "sys/ioctl.ph"}; ## try to get, don't die if not found.
+ eval {require "sgtty.ph"}; ## try to get, don't die if not found.
+ if ($inDOS and !defined $TIOCGWINSZ) {
+ $TIOCGWINSZ=0;
+ $TIOCGETP=1;
+ $TIOCSETP=2;
+ $sgttyb_t="I5 C8";
+ $winsz_t="";
+ $RAW=0xf002;
+ $ECHO=0x0008;
+ }
+ $TIOCGETP = &TIOCGETP if defined(&TIOCGETP);
+ $TIOCSETP = &TIOCSETP if defined(&TIOCSETP);
+ $TIOCGWINSZ = &TIOCGWINSZ if defined(&TIOCGWINSZ);
+ $FIONREAD = &FIONREAD if defined(&FIONREAD);
+ $TCGETS = &TCGETS if defined(&TCGETS);
+ $TCSETS = &TCSETS if defined(&TCSETS);
+ $TCXONC = &TCXONC if defined(&TCXONC);
+ $TIOCGETP = 0x40067408 if !defined($TIOCGETP);
+ $TIOCSETP = 0x80067409 if !defined($TIOCSETP);
+ $TIOCGWINSZ = 0x40087468 if !defined($TIOCGWINSZ);
+ $FIONREAD = 0x4004667f if !defined($FIONREAD);
+ $TCGETS = 0x40245408 if !defined($TCGETS);
+ $TCSETS = 0x80245409 if !defined($TCSETS);
+ $TCXONC = 0x20005406 if !defined($TCXONC);
+
+ ## TTY modes
+ $ECHO = &ECHO if defined(&ECHO);
+ $RAW = &RAW if defined(&RAW);
+ $RAW = 040 if !defined($RAW);
+ $ECHO = 010 if !defined($ECHO);
+ #$CBREAK = 002 if !defined($CBREAK);
+ $mode = $RAW; ## could choose CBREAK for testing....
+
+ $IGNBRK = 1 if !defined($IGNBRK);
+ $BRKINT = 2 if !defined($BRKINT);
+ $ISTRIP = 040 if !defined($ISTRIP);
+ $INLCR = 0100 if !defined($INLCR);
+ $IGNCR = 0200 if !defined($IGNCR);
+ $ICRNL = 0400 if !defined($ICRNL);
+ $OPOST = 1 if !defined($OPOST);
+ $ISIG = 1 if !defined($ISIG);
+ $ICANON = 2 if !defined($ICANON);
+ $TCOON = 1 if !defined($TCOON);
+ $TERMIOS_READLINE_ION = $BRKINT;
+ $TERMIOS_READLINE_IOFF = $IGNBRK | $ISTRIP | $INLCR | $IGNCR | $ICRNL;
+ $TERMIOS_READLINE_OON = 0;
+ $TERMIOS_READLINE_OOFF = $OPOST;
+ $TERMIOS_READLINE_LON = 0;
+ $TERMIOS_READLINE_LOFF = $ISIG | $ICANON | $ECHO;
+ $TERMIOS_NORMAL_ION = $BRKINT;
+ $TERMIOS_NORMAL_IOFF = $IGNBRK;
+ $TERMIOS_NORMAL_OON = $OPOST;
+ $TERMIOS_NORMAL_OOFF = 0;
+ $TERMIOS_NORMAL_LON = $ISIG | $ICANON | $ECHO;
+ $TERMIOS_NORMAL_LOFF = 0;
+
+ #$sgttyb_t = 'C4 S';
+ #$winsz_t = "S S S S"; # rows,cols, xpixel, ypixel
+ $sgttyb_t = 'C4 S' if !defined($sgttyb_t);
+ $winsz_t = "S S S S" if !defined($winsz_t);
+ # rows,cols, xpixel, ypixel
+ $winsz = pack($winsz_t,0,0,0,0);
+ $fionread_t = "L";
+ $fion = pack($fionread_t, 0);
+ $NCCS = 17;
+ $termios_t = "LLLLc" . ("c" x $NCCS); # true for SunOS 4.1.3, at least...
+ $termios = ''; ## just to shut up "perl -w".
+ $termios = pack($termios, 0); # who cares, just make it long enough
+ $TERMIOS_IFLAG = 0;
+ $TERMIOS_OFLAG = 1;
+ $TERMIOS_CFLAG = 2;
+ $TERMIOS_LFLAG = 3;
+ $TERMIOS_VMIN = 5 + 4;
+ $TERMIOS_VTIME = 5 + 5;
+ }
+ $rl_delete_selection = 1;
+ $rl_correct_sw = ($inDOS ? 1 : 0);
+ $rl_scroll_nextline = 1 unless defined $rl_scroll_nextline;
+ $rl_last_pos_can_backspace = ($inDOS ? 0 : 1) # Can backspace when the
+ unless defined $rl_last_pos_can_backspace; # whole line is filled?
+
+ $rl_start_default_at_beginning = 0;
+ $rl_vi_replace_default_on_insert = 0;
+ $rl_screen_width = 79; ## default
+
+ $rl_completion_function = "rl_filename_list"
+ unless defined($rl_completion_function);
+ $rl_basic_word_break_characters = "\\\t\n' \"`\@\$><=;|&{(";
+ $rl_completer_word_break_characters = $rl_basic_word_break_characters;
+ $rl_special_prefixes = '';
+ ($rl_readline_name = $0) =~ s#.*[/\\]## if !defined($rl_readline_name);
+
+ @rl_History=() if !(@rl_History);
+ $rl_MaxHistorySize = 100 if !defined($rl_MaxHistorySize);
+ $rl_max_numeric_arg = 200 if !defined($rl_max_numeric_arg);
+ $rl_OperateCount = 0 if !defined($rl_OperateCount);
+
+ $rl_term_set = \@Term::ReadLine::TermCap::rl_term_set;
+ @$rl_term_set or $rl_term_set = ["","","",""];
+
+ $InsertMode=1;
+ $KillBuffer='';
+ $line='';
+ $D = 0;
+ $InputLocMsg = ' [initialization]';
+
+ &InitKeymap(*emacs_keymap, 'SelfInsert', 'emacs_keymap',
+ ($inDOS ? () : ('C-@', 'SetMark') ),
+ 'C-a', 'BeginningOfLine',
+ 'C-b', 'BackwardChar',
+ 'C-c', 'Interrupt',
+ 'C-d', 'DeleteChar',
+ 'C-e', 'EndOfLine',
+ 'C-f', 'ForwardChar',
+ 'C-g', 'Abort',
+ 'M-C-g', 'Abort',
+ 'C-h', 'BackwardDeleteChar',
+ "TAB" , 'Complete',
+ "C-j" , 'AcceptLine',
+ 'C-k', 'KillLine',
+ 'C-l', 'ClearScreen',
+ "C-m" , 'AcceptLine',
+ 'C-n', 'NextHistory',
+ 'C-o', 'OperateAndGetNext',
+ 'C-p', 'PreviousHistory',
+ 'C-q', 'QuotedInsert',
+ 'C-r', 'ReverseSearchHistory',
+ 'C-s', 'ForwardSearchHistory',
+ 'C-t', 'TransposeChars',
+ 'C-u', 'UnixLineDiscard',
+ ##'C-v', 'QuotedInsert',
+ 'C-v', 'HistorySearchForward',
+ 'C-w', 'UnixWordRubout',
+ qq/"\cX\cX"/, 'ExchangePointAndMark',
+ qq/"\cX\cR"/, 'ReReadInitFile',
+ qq/"\cX?"/, 'PossibleCompletions',
+ qq/"\cX*"/, 'InsertPossibleCompletions',
+ qq/"\cX\cU"/, 'Undo',
+ qq/"\cXu"/, 'Undo',
+ qq/"\cX\cW"/, 'KillRegion',
+ qq/"\cXw"/, 'CopyRegionAsKill',
+ qq/"\cX\ec\\*"/, 'DoControlVersion',
+ qq/"\cX\ec\0"/, 'SetMark',
+ qq/"\cX\ec\@"/, 'SetMark',
+ qq/"\cX\ec "/, 'SetMark',
+ qq/"\cX\em\\*"/, 'DoMetaVersion',
+ qq/"\cX\@c\\*"/, 'DoControlVersion',
+ qq/"\cX\@c\0"/, 'SetMark',
+ qq/"\cX\@c\@"/, 'SetMark',
+ qq/"\cX\@c "/, 'SetMark',
+ qq/"\cX\@m\\*"/, 'DoMetaVersion',
+ 'C-y', 'Yank',
+ 'C-z', 'Suspend',
+ 'C-\\', 'Ding',
+ 'C-^', 'Ding',
+ 'C-_', 'Undo',
+ 'DEL', ($inDOS ?
+ 'BackwardKillWord' : # <Control>+<Backspace>
+ 'BackwardDeleteChar'
+ ),
+ 'M-<', 'BeginningOfHistory',
+ 'M->', 'EndOfHistory',
+ 'M-DEL', 'BackwardKillWord',
+ 'M-C-h', 'BackwardKillWord',
+ 'M-C-j', 'ViInput',
+ 'M-C-v', 'QuotedInsert',
+ 'M-b', 'BackwardWord',
+ 'M-c', 'CapitalizeWord',
+ 'M-d', 'KillWord',
+ 'M-f', 'ForwardWord',
+ 'M-h', 'PrintHistory',
+ 'M-l', 'DownCaseWord',
+ 'M-r', 'RevertLine',
+ 'M-t', 'TransposeWords',
+ 'M-u', 'UpcaseWord',
+ 'M-v', 'HistorySearchBackward',
+ 'M-y', 'YankPop',
+ "M-?", 'PossibleCompletions',
+ "M-TAB", 'TabInsert',
+ 'M-#', 'SaveLine',
+ qq/"\e[A"/, 'previous-history',
+ qq/"\e[B"/, 'next-history',
+ qq/"\e[C"/, 'forward-char',
+ qq/"\e[D"/, 'backward-char',
+ qq/"\eOA"/, 'previous-history',
+ qq/"\eOB"/, 'next-history',
+ qq/"\eOC"/, 'forward-char',
+ qq/"\eOD"/, 'backward-char',
+ qq/"\eOy"/, 'HistorySearchBackward', # vt: PageUp
+ qq/"\eOs"/, 'HistorySearchForward', # vt: PageDown
+ qq/"\e[[A"/, 'previous-history',
+ qq/"\e[[B"/, 'next-history',
+ qq/"\e[[C"/, 'forward-char',
+ qq/"\e[[D"/, 'backward-char',
+ qq/"\e[2~"/, 'ToggleInsertMode', # X: <Insert>
+ # Mods: 1 + bitmask: 1 Shift, 2 Alt, 4 Control, 8 (sometimes) Meta
+ qq/"\e[2;2~"/, 'YankClipboard', # <Shift>+<Insert>
+ qq/"\e[3;2~"/, 'KillRegionClipboard', # <Shift>+<Delete>
+ #qq/"\0\16"/, 'Undo', # <Alt>+<Backspace>
+ qq/"\eO5D"/, 'BackwardWord', # <Ctrl>+<Left arrow>
+ qq/"\eO5C"/, 'ForwardWord', # <Ctrl>+<Right arrow>
+ qq/"\e[5D"/, 'BackwardWord', # <Ctrl>+<Left arrow>
+ qq/"\e[5C"/, 'ForwardWord', # <Ctrl>+<Right arrow>
+ qq/"\eO5F"/, 'KillLine', # <Ctrl>+<End>
+ qq/"\e[5F"/, 'KillLine', # <Ctrl>+<End>
+ qq/"\e[4;5~"/, 'KillLine', # <Ctrl>+<End>
+ qq/"\eO5s"/, 'EndOfHistory', # <Ctrl>+<Page Down>
+ qq/"\e[6;5~"/, 'EndOfHistory', # <Ctrl>+<Page Down>
+ qq/"\e[5H"/, 'BackwardKillLine', # <Ctrl>+<Home>
+ qq/"\eO5H"/, 'BackwardKillLine', # <Ctrl>+<Home>
+ qq/"\e[1;5~"/, 'BackwardKillLine', # <Ctrl>+<Home>
+ qq/"\eO5y"/, 'BeginningOfHistory', # <Ctrl>+<Page Up>
+ qq/"\e[5;5y"/, 'BeginningOfHistory', # <Ctrl>+<Page Up>
+ qq/"\e[2;5~"/, 'CopyRegionAsKillClipboard', # <Ctrl>+<Insert>
+ qq/"\e[3;5~"/, 'KillWord', # <Ctrl>+<Delete>
+
+ # XTerm mouse editing (f202/f203 not in mainstream yet):
+ # Paste may be: move f200 STRING f201
+ # or f202 move f200 STRING f201 f203;
+ # and Cut may be f202 move delete f203
+ qq/"\e[200~"/, 'BeginPasteGroup', # Pre-paste
+ qq/"\e[201~"/, 'EndPasteGroup', # Post-paste
+ qq/"\e[202~"/, 'BeginEditGroup', # Pre-edit
+ qq/"\e[203~"/, 'EndEditGroup', # Post-edit
+
+ # OSX xterm:
+ # OSX xterm: home \eOH end \eOF delete \e[3~ help \e[28~ f13 \e[25~
+ # gray- \eOm gray+ \eOk gray-enter \eOM gray* \eOj gray/ \eOo gray= \eO
+ # grayClear \e\e.
+
+ qq/"\eOH"/, 'BeginningOfLine', # home
+ qq/"\eOF"/, 'EndOfLine', # end
+
+ # HP xterm
+ #qq/"\e[A"/, 'PreviousHistory', # up arrow
+ #qq/"\e[B"/, 'NextHistory', # down arrow
+ #qq/"\e[C"/, 'ForwardChar', # right arrow
+ #qq/"\e[D"/, 'BackwardChar', # left arrow
+ qq/"\e[H"/, 'BeginningOfLine', # home
+ #'C-k', 'KillLine', # clear display
+ qq/"\e[5~"/, 'HistorySearchBackward', # prev
+ qq/"\e[6~"/, 'HistorySearchForward', # next
+ qq/"\e[\0"/, 'BeginningOfLine', # home
+
+ # These contradict:
+ ($^O =~ /^hp\W?ux/i ? (
+ qq/"\e[1~"/, 'HistorySearchForward', # find
+ qq/"\e[3~"/, 'ToggleInsertMode', # insert char
+ qq/"\e[4~"/, 'ToggleInsertMode', # select
+ ) : ( # "Normal" xterm
+ qq/"\e[1~"/, 'BeginningOfLine', # home
+ qq/"\e[3~"/, 'DeleteChar', # delete
+ qq/"\e[4~"/, 'EndOfLine', # end
+ )),
+
+ # hpterm
+
+ (($ENV{'TERM'} and $ENV{'TERM'} eq 'hpterm') ?
+ (
+ qq/"\eA"/, 'PreviousHistory', # up arrow
+ qq/"\eB"/, 'NextHistory', # down arrow
+ qq/"\eC"/, 'ForwardChar', # right arrow
+ qq/"\eD"/, 'BackwardChar', # left arrow
+ qq/"\eS"/, 'BeginningOfHistory', # shift up arrow
+ qq/"\eT"/, 'EndOfHistory', # shift down arrow
+ qq/"\e&r1R"/, 'EndOfLine', # shift right arrow
+ qq/"\e&r1L"/, 'BeginningOfLine', # shift left arrow
+ qq/"\eJ"/, 'ClearScreen', # clear display
+ qq/"\eM"/, 'UnixLineDiscard', # delete line
+ qq/"\eK"/, 'KillLine', # clear line
+ qq/"\eG\eK"/, 'BackwardKillLine', # shift clear line
+ qq/"\eP"/, 'DeleteChar', # delete char
+ qq/"\eL"/, 'Yank', # insert line
+ qq/"\eQ"/, 'ToggleInsertMode', # insert char
+ qq/"\eV"/, 'HistorySearchBackward',# prev
+ qq/"\eU"/, 'HistorySearchForward',# next
+ qq/"\eh"/, 'BeginningOfLine', # home
+ qq/"\eF"/, 'EndOfLine', # shift home
+ qq/"\ei"/, 'Suspend', # shift tab
+ ) :
+ ()
+ ),
+ ($inDOS ?
+ (
+ qq/"\0\2"/, 'SetMark', # 2: <Control>+<Space>
+ qq/"\0\3"/, 'SetMark', # 3: <Control>+<@>
+ qq/"\0\4"/, 'YankClipboard', # 4: <Shift>+<Insert>
+ qq/"\0\5"/, 'KillRegionClipboard', # 5: <Shift>+<Delete>
+ qq/"\0\16"/, 'Undo', # 14: <Alt>+<Backspace>
+# qq/"\0\23"/, 'RevertLine', # 19: <Alt>+<R>
+# qq/"\0\24"/, 'TransposeWords', # 20: <Alt>+<T>
+# qq/"\0\25"/, 'YankPop', # 21: <Alt>+<Y>
+# qq/"\0\26"/, 'UpcaseWord', # 22: <Alt>+<U>
+# qq/"\0\31"/, 'ReverseSearchHistory', # 25: <Alt>+<P>
+# qq/"\0\40"/, 'KillWord', # 32: <Alt>+<D>
+# qq/"\0\41"/, 'ForwardWord', # 33: <Alt>+<F>
+# qq/"\0\46"/, 'DownCaseWord', # 38: <Alt>+<L>
+ #qq/"\0\51"/, 'TildeExpand', # 41: <Alt>+<\'>
+# qq/"\0\56"/, 'CapitalizeWord', # 46: <Alt>+<C>
+# qq/"\0\60"/, 'BackwardWord', # 48: <Alt>+<B>
+# qq/"\0\61"/, 'ForwardSearchHistory', # 49: <Alt>+<N>
+ #qq/"\0\64"/, 'YankLastArg', # 52: <Alt>+<.>
+ qq/"\0\65"/, 'PossibleCompletions', # 53: <Alt>+</>
+ qq/"\0\107"/, 'BeginningOfLine', # 71: <Home>
+ qq/"\0\110"/, 'previous-history', # 72: <Up arrow>
+ qq/"\0\111"/, 'HistorySearchBackward', # 73: <Page Up>
+ qq/"\0\113"/, 'backward-char', # 75: <Left arrow>
+ qq/"\0\115"/, 'forward-char', # 77: <Right arrow>
+ qq/"\0\117"/, 'EndOfLine', # 79: <End>
+ qq/"\0\120"/, 'next-history', # 80: <Down arrow>
+ qq/"\0\121"/, 'HistorySearchForward', # 81: <Page Down>
+ qq/"\0\122"/, 'ToggleInsertMode', # 82: <Insert>
+ qq/"\0\123"/, 'DeleteChar', # 83: <Delete>
+ qq/"\0\163"/, 'BackwardWord', # 115: <Ctrl>+<Left arrow>
+ qq/"\0\164"/, 'ForwardWord', # 116: <Ctrl>+<Right arrow>
+ qq/"\0\165"/, 'KillLine', # 117: <Ctrl>+<End>
+ qq/"\0\166"/, 'EndOfHistory', # 118: <Ctrl>+<Page Down>
+ qq/"\0\167"/, 'BackwardKillLine', # 119: <Ctrl>+<Home>
+ qq/"\0\204"/, 'BeginningOfHistory', # 132: <Ctrl>+<Page Up>
+ qq/"\0\x92"/, 'CopyRegionAsKillClipboard', # 146: <Ctrl>+<Insert>
+ qq/"\0\223"/, 'KillWord', # 147: <Ctrl>+<Delete>
+ qq/"\0#"/, 'PrintHistory', # Alt-H
+ )
+ : ( 'C-@', 'Ding')
+ )
+ );
+
+ *KeyMap = *emacs_keymap;
+ my @add_bindings = ();
+ foreach ('-', '0' .. '9') { push(@add_bindings, "M-$_", 'DigitArgument'); }
+ foreach ("A" .. "Z") {
+ next if # defined($KeyMap[27]) && defined (%{"$KeyMap{name}_27"}) &&
+ defined $ {"$KeyMap{name}_27"}[ord $_];
+ push(@add_bindings, "M-$_", 'DoLowercaseVersion');
+ }
+ if ($inDOS) {
+ # Default translation of Alt-char
+ $ {"$KeyMap{name}_0"}{'Esc'} = *{"$KeyMap{name}_27"};
+ $ {"$KeyMap{name}_0"}{'default'} = 'F_DoEscVersion';
+ }
+ &rl_bind(@add_bindings);
+
+ # Vi input mode.
+ &InitKeymap(*vi_keymap, 'SelfInsert', 'vi_keymap',
+
+ "\e", 'ViEndInsert',
+ 'C-c', 'Interrupt',
+ 'C-h', 'BackwardDeleteChar',
+ 'C-w', 'UnixWordRubout',
+ 'C-u', 'UnixLineDiscard',
+ 'C-v', 'QuotedInsert',
+ 'DEL', 'BackwardDeleteChar',
+ "\n", 'ViAcceptInsert',
+ "\r", 'ViAcceptInsert',
+ );
+
+ # Vi command mode.
+ &InitKeymap(*vicmd_keymap, 'Ding', 'vicmd_keymap',
+
+ 'C-c', 'Interrupt',
+ 'C-e', 'EmacsEditingMode',
+ 'C-h', 'ViMoveCursor',
+ 'C-l', 'ClearScreen',
+ "\n", 'ViAcceptLine',
+ "\r", 'ViAcceptLine',
+
+ ' ', 'ViMoveCursor',
+ '#', 'SaveLine',
+ '$', 'ViMoveCursor',
+ '%', 'ViMoveCursor',
+ '*', 'ViInsertPossibleCompletions',
+ '+', 'NextHistory',
+ ',', 'ViMoveCursor',
+ '-', 'PreviousHistory',
+ '.', 'ViRepeatLastCommand',
+ '/', 'ViSearch',
+
+ '0', 'ViMoveCursor',
+ '1', 'ViDigit',
+ '2', 'ViDigit',
+ '3', 'ViDigit',
+ '4', 'ViDigit',
+ '5', 'ViDigit',
+ '6', 'ViDigit',
+ '7', 'ViDigit',
+ '8', 'ViDigit',
+ '9', 'ViDigit',
+
+ ';', 'ViMoveCursor',
+ '=', 'ViPossibleCompletions',
+ '?', 'ViSearch',
+
+ 'A', 'ViAppendLine',
+ 'B', 'ViMoveCursor',
+ 'C', 'ViChangeLine',
+ 'D', 'ViDeleteLine',
+ 'E', 'ViMoveCursor',
+ 'F', 'ViMoveCursor',
+ 'G', 'ViHistoryLine',
+ 'H', 'PrintHistory',
+ 'I', 'ViBeginInput',
+ 'N', 'ViRepeatSearch',
+ 'P', 'ViPutBefore',
+ 'R', 'ViReplaceMode',
+ 'S', 'ViChangeEntireLine',
+ 'T', 'ViMoveCursor',
+ 'U', 'ViUndoAll',
+ 'W', 'ViMoveCursor',
+ 'X', 'ViBackwardDeleteChar',
+ 'Y', 'ViYankLine',
+
+ '\\', 'ViComplete',
+ '^', 'ViMoveCursor',
+
+ 'a', 'ViAppend',
+ 'b', 'ViMoveCursor',
+ 'c', 'ViChange',
+ 'd', 'ViDelete',
+ 'e', 'ViMoveCursor',
+ 'f', 'ViMoveCursorFind',
+ 'h', 'ViMoveCursor',
+ 'i', 'ViInput',
+ 'j', 'NextHistory',
+ 'k', 'PreviousHistory',
+ 'l', 'ViMoveCursor',
+ 'n', 'ViRepeatSearch',
+ 'p', 'ViPut',
+ 'r', 'ViReplaceChar',
+ 's', 'ViChangeChar',
+ 't', 'ViMoveCursorTo',
+ 'u', 'ViUndo',
+ 'w', 'ViMoveCursor',
+ 'x', 'ViDeleteChar',
+ 'y', 'ViYank',
+
+ '|', 'ViMoveCursor',
+ '~', 'ViToggleCase',
+
+ (($inDOS
+ and (not $ENV{'TERM'} or $ENV{'TERM'} !~ /^(vt|xterm)/i)) ?
+ (
+ qq/"\0\110"/, 'PreviousHistory', # 72: <Up arrow>
+ qq/"\0\120"/, 'NextHistory', # 80: <Down arrow>
+ qq/"\0\113"/, 'BackwardChar', # 75: <Left arrow>
+ qq/"\0\115"/, 'ForwardChar', # 77: <Right arrow>
+ "\e", 'ViCommandMode',
+ ) :
+
+ (('M-C-j','EmacsEditingMode'), # Conflicts with \e otherwise
+ (($ENV{'TERM'} and $ENV{'TERM'} eq 'hpterm') ?
+ (
+ qq/"\eA"/, 'PreviousHistory', # up arrow
+ qq/"\eB"/, 'NextHistory', # down arrow
+ qq/"\eC"/, 'ForwardChar', # right arrow
+ qq/"\eD"/, 'BackwardChar', # left arrow
+ qq/"\e\\*"/, 'ViAfterEsc',
+ ) :
+
+ # Default
+ (
+ qq/"\e[A"/, 'PreviousHistory', # up arrow
+ qq/"\e[B"/, 'NextHistory', # down arrow
+ qq/"\e[C"/, 'ForwardChar', # right arrow
+ qq/"\e[D"/, 'BackwardChar', # left arrow
+ qq/"\e\\*"/, 'ViAfterEsc',
+ qq/"\e[\\*"/, 'ViAfterEsc',
+ )
+ ))),
+ );
+
+ # Vi positioning commands (suffixed to vi commands like 'd').
+ &InitKeymap(*vipos_keymap, 'ViNonPosition', 'vipos_keymap',
+
+ '^', 'ViFirstWord',
+ '0', 'BeginningOfLine',
+ '1', 'ViDigit',
+ '2', 'ViDigit',
+ '3', 'ViDigit',
+ '4', 'ViDigit',
+ '5', 'ViDigit',
+ '6', 'ViDigit',
+ '7', 'ViDigit',
+ '8', 'ViDigit',
+ '9', 'ViDigit',
+ '$', 'EndOfLine',
+ 'h', 'BackwardChar',
+ 'l', 'ForwardChar',
+ ' ', 'ForwardChar',
+ 'C-h', 'BackwardChar',
+ 'f', 'ViForwardFindChar',
+ 'F', 'ViBackwardFindChar',
+ 't', 'ViForwardToChar',
+ 'T', 'ViBackwardToChar',
+ ';', 'ViRepeatFindChar',
+ ',', 'ViInverseRepeatFindChar',
+ '%', 'ViFindMatchingParens',
+ '|', 'ViMoveToColumn',
+
+ # Arrow keys
+ ($inDOS ?
+ (
+ qq/"\0\115"/, 'ForwardChar', # 77: <Right arrow>
+ qq/"\0\113"/, 'BackwardChar', # 75: <Left arrow>
+ "\e", 'ViPositionEsc',
+ ) :
+
+ ($ENV{'TERM'} and $ENV{'TERM'} eq 'hpterm') ?
+ (
+ qq/"\eC"/, 'ForwardChar', # right arrow
+ qq/"\eD"/, 'BackwardChar', # left arrow
+ qq/"\e\\*"/, 'ViPositionEsc',
+ ) :
+
+ # Default
+ (
+ qq/"\e[C"/, 'ForwardChar', # right arrow
+ qq/"\e[D"/, 'BackwardChar', # left arrow
+ qq/"\e\\*"/, 'ViPositionEsc',
+ qq/"\e[\\*"/, 'ViPositionEsc',
+ )
+ ),
+ );
+
+ # Vi search string input mode for '/' and '?'.
+ &InitKeymap(*visearch_keymap, 'SelfInsert', 'visearch_keymap',
+
+ "\e", 'Ding',
+ 'C-c', 'Interrupt',
+ 'C-h', 'ViSearchBackwardDeleteChar',
+ 'C-w', 'UnixWordRubout',
+ 'C-u', 'UnixLineDiscard',
+ 'C-v', 'QuotedInsert',
+ 'DEL', 'ViSearchBackwardDeleteChar',
+ "\n", 'ViEndSearch',
+ "\r", 'ViEndSearch',
+ );
+
+ # These constant hashes hold the arguments to &forward_scan() or
+ # &backward_scan() for vi positioning commands, which all
+ # behave a little differently for delete, move, change, and yank.
+ #
+ # Note: I originally coded these as qr{}, but changed them to q{} for
+ # compatibility with older perls at the expense of some performance.
+ #
+ # Note: Some of the more obscure key combinations behave slightly
+ # differently in different vi implementation. This module matches
+ # the behavior of /usr/ucb/vi, which is different from the
+ # behavior of vim, nvi, and the ksh command line. One example is
+ # the command '2de', when applied to the string ('^' represents the
+ # cursor, not a character of the string):
+ #
+ # ^5.6 7...88888888
+ #
+ # With /usr/ucb/vi and with this module, the result is
+ #
+ # ^...88888888
+ #
+ # but with the other three vi implementations, the result is
+ #
+ # ^ 7...88888888
+
+ $Vi_delete_patterns = {
+ ord('w') => q{(?:\w+|[^\w\s]+|)\s*},
+ ord('W') => q{\S*\s*},
+ ord('b') => q{\w+\s*|[^\w\s]+\s*|^\s+},
+ ord('B') => q{\S+\s*|^\s+},
+ ord('e') => q{.\s*\w+|.\s*[^\w\s]+|.\s*$},
+ ord('E') => q{.\s*\S+|.\s*$},
+ };
+
+ $Vi_move_patterns = {
+ ord('w') => q{(?:\w+|[^\w\s]+|)\s*},
+ ord('W') => q{\S*\s*},
+ ord('b') => q{\w+\s*|[^\w\s]+\s*|^\s+},
+ ord('B') => q{\S+\s*|^\s+},
+ ord('e') => q{.\s*\w*(?=\w)|.\s*[^\w\s]*(?=[^\w\s])|.?\s*(?=\s$)},
+ ord('E') => q{.\s*\S*(?=\S)|.?\s*(?=\s$)},
+ };
+
+ $Vi_change_patterns = {
+ ord('w') => q{\w+|[^\w\s]+|\s},
+ ord('W') => q{\S+|\s},
+ ord('b') => q{\w+\s*|[^\w\s]+\s*|^\s+},
+ ord('B') => q{\S+\s*|^\s+},
+ ord('e') => q{.\s*\w+|.\s*[^\w\s]+|.\s*$},
+ ord('E') => q{.\s*\S+|.\s*$},
+ };
+
+ $Vi_yank_patterns = {
+ ord('w') => q{(?:\w+|[^\w\s]+|)\s*},
+ ord('W') => q{\S*\s*},
+ ord('b') => q{\w+\s*|[^\w\s]+\s*|^\s+},
+ ord('B') => q{\S+\s*|^\s+},
+ ord('e') => q{.\s*\w*(?=\w)|.\s*[^\w\s]*(?=[^\w\s])|.?\s*(?=\s$)},
+ ord('E') => q{.\s*\S*(?=\S)|.?\s*(?=\s$)},
+ };
+
+ my $default_mode = 'emacs';
+
+ *KeyMap = $var_EditingMode = $var_EditingMode{$default_mode};
+
+## my $name;
+## for $name ( keys %{'readline::'} ) {
+## # Create aliases accessible via tied interface
+## *{"rl_$1"} = \$ {"var_$1"} if $name =~ /$var_(.*)/;
+## }
+
+ 1; # Returning a glob causes a bug in db5.001m
+}
+
+sub init
+{
+ if ($ENV{'TERM'} and ($ENV{'TERM'} eq 'emacs' || $ENV{'TERM'} eq 'dumb')) {
+ $dumb_term = 1;
+ } elsif (! -c $term_IN && $term_IN eq \*STDIN) { # Believe if it is given
+ $stdin_not_tty = 1;
+ } else {
+ &get_window_size;
+ &F_ReReadInitFile if !defined($rl_NoInitFromFile);
+ $InputLocMsg = '';
+ *KeyMap = $var_EditingMode;
+ }
+
+ $initialized = 1;
+}
+
+
+##
+## InitKeymap(*keymap, 'default', 'name', bindings.....)
+##
+sub InitKeymap
+{
+ local(*KeyMap) = shift(@_);
+ my $default = shift(@_);
+ my $name = $KeyMap{'name'} = shift(@_);
+
+ # 'default' is now optional - if '', &do_command() defaults it to
+ # 'F_Ding'. Meta-maps now don't set a default - this lets
+ # us detect multiple '\*' default declarations. JP
+ if ($default ne '') {
+ my $func = $KeyMap{'default'} = "F_$default";
+ ### Temporarily disabled
+ die qq/Bad default function [$func] for keymap "$name"/
+ if !$autoload_broken and !defined(&$func);
+ }
+
+ &rl_bind if @_ > 0; ## The rest of @_ gets passed silently.
+}
+
+##
+## Accepts an array as pairs ($keyspec, $function, [$keyspec, $function]...).
+## and maps the associated bindings to the current KeyMap.
+##
+## keyspec should be the name of key sequence in one of two forms:
+##
+## Old (GNU readline documented) form:
+## M-x to indicate Meta-x
+## C-x to indicate Ctrl-x
+## M-C-x to indicate Meta-Ctrl-x
+## x simple char x
+## where 'x' above can be a single character, or the special:
+## special means
+## -------- -----
+## space space ( )
+## spc space ( )
+## tab tab (\t)
+## del delete (0x7f)
+## rubout delete (0x7f)
+## newline newline (\n)
+## lfd newline (\n)
+## ret return (\r)
+## return return (\r)
+## escape escape (\e)
+## esc escape (\e)
+##
+## New form:
+## "chars" (note the required double-quotes)
+## where each char in the list represents a character in the sequence, except
+## for the special sequences:
+## \\C-x Ctrl-x
+## \\M-x Meta-x
+## \\M-C-x Meta-Ctrl-x
+## \\e escape.
+## \\x x (if not one of the above)
+##
+##
+## FUNCTION should be in the form 'BeginningOfLine' or 'beginning-of-line'.
+## It is an error for the function to not be known....
+##
+## As an example, the following lines in .inputrc will bind one's xterm
+## arrow keys:
+## "\e[[A": previous-history
+## "\e[[B": next-history
+## "\e[[C": forward-char
+## "\e[[D": backward-char
+##
+
+sub filler_Pending ($) {
+ my $keys = shift;
+ sub {
+ my $c = shift;
+ push @Pending, map chr, @$keys;
+ return if not @$keys or $c == 1 or not defined(my $in = &getc_with_pending);
+ # provide the numeric argument
+ local(*KeyMap) = $var_EditingMode;
+ $doingNumArg = 1; # Allow NumArg inside NumArg
+ &do_command(*KeyMap, $c, ord $in);
+ return;
+ }
+}
+
+sub _unescape ($) {
+ my($key, @keys) = shift;
+ ## New-style bindings are enclosed in double-quotes.
+ ## Characters are taken verbatim except the special cases:
+ ## \C-x Control x (for any x)
+ ## \M-x Meta x (for any x)
+ ## \e Escape
+ ## \* Set the keymap default (JP: added this)
+ ## (must be the last character of the sequence)
+ ##
+ ## \x x (unless it fits the above pattern)
+ ##
+ ## Look for special case of "\C-\M-x", which should be treated
+ ## like "\M-\C-x".
+
+ while (length($key) > 0) {
+
+ # JP: fixed regex bugs below: changed all 's#' to 's#^'
+
+ if ($key =~ s#^\\C-\\M-(.)##) {
+ push(@keys, ord("\e"), &ctrl(ord($1)));
+ } elsif ($key =~ s#^\\(M-|e)##) {
+ push(@keys, ord("\e"));
+ } elsif ($key =~ s#^\\C-(.)##) {
+ push(@keys, &ctrl(ord($1)));
+ } elsif ($key =~ s#^\\x([0-9a-fA-F]{2})##) {
+ push(@keys, eval('0x'.$1));
+ } elsif ($key =~ s#^\\([0-7]{3})##) {
+ push(@keys, eval('0'.$1));
+ } elsif ($key =~ s#^\\\*$##) { # JP: added
+ push(@keys, 'default');
+ } elsif ($key =~ s#^\\([afnrtv])##) {
+ push(@keys, ord(eval(qq("\\$1"))));
+ } elsif ($key =~ s#^\\d##) {
+ push(@keys, 4); # C-d
+ } elsif ($key =~ s#^\\b##) {
+ push(@keys, 0x7f); # Backspace
+ } elsif ($key =~ s#^\\(.)##) {
+ push(@keys, ord($1));
+ } else {
+ push(@keys, ord($key));
+ substr($key,0,1) = '';
+ }
+ }
+ @keys
+}
+
+sub RL_func ($) {
+ my $name_or_macro = shift;
+ if ($name_or_macro =~ /^"((?:\\.|[^\\\"])*)"|^'((?:\\.|[^\\\'])*)'/s) {
+ filler_Pending [_unescape "$+"];
+ } else {
+ "F_$name_or_macro";
+ }
+}
+
+sub actually_do_binding
+{
+ ##
+ ## actually_do_binding($function1, \@sequence1, ...)
+ ##
+ ## Actually inserts the binding for @sequence to $function into the
+ ## current map. @sequence is an array of character ordinals.
+ ##
+ ## If @sequence is more than one element long, all but the last will
+ ## cause meta maps to be created.
+ ##
+ ## $Function will have an implicit "F_" prepended to it.
+ ##
+ while (@_) {
+ my $func = shift;
+ my ($key, @keys) = @{shift()};
+ $key += 0;
+ local(*KeyMap) = *KeyMap;
+ my $map;
+ while (@keys) {
+ if (defined($KeyMap[$key]) && ($KeyMap[$key] ne 'F_PrefixMeta')) {
+ warn "Warning$InputLocMsg: ".
+ "Re-binding char #$key from [$KeyMap[$key]] to meta for [@keys] => $func.\n" if $^W;
+ }
+ $KeyMap[$key] = 'F_PrefixMeta';
+ $map = "$KeyMap{'name'}_$key";
+ InitKeymap(*$map, '', $map) if !(%$map);
+ *KeyMap = *$map;
+ $key = shift @keys;
+ #&actually_do_binding($func, \@keys);
+ }
+
+ my $name = $KeyMap{'name'};
+ if ($key eq 'default') { # JP: added
+ warn "Warning$InputLocMsg: ".
+ " changing default action to $func in $name key map\n"
+ if $^W && defined $KeyMap{'default'};
+
+ $KeyMap{'default'} = RL_func $func;
+ }
+ else {
+ if (defined($KeyMap[$key]) && $KeyMap[$key] eq 'F_PrefixMeta'
+ && $func ne 'PrefixMeta')
+ {
+ warn "Warning$InputLocMsg: ".
+ " Re-binding char #$key to non-meta ($func) in $name key map\n"
+ if $^W;
+ }
+ $KeyMap[$key] = RL_func $func;
+ }
+ }
+}
+
+sub rl_bind
+{
+ my (@keys, $key, $func, $ord, @arr);
+
+ while (defined($key = shift(@_)) && defined($func = shift(@_)))
+ {
+ ##
+ ## Change the function name from something like
+ ## backward-kill-line
+ ## to
+ ## BackwardKillLine
+ ## if not already there.
+ ##
+ unless ($func =~ /^[\"\']/) {
+ $func = "\u$func";
+ $func =~ s/-(.)/\u$1/g;
+
+ # Temporary disabled
+ if (!$autoload_broken and !defined($ {'readline::'}{"F_$func"})) {
+ warn "Warning$InputLocMsg: bad bind function [$func]\n" if $^W;
+ next;
+ }
+ }
+
+ ## print "sequence [$key] func [$func]\n"; ##DEBUG
+
+ @keys = ();
+ ## See if it's a new-style binding.
+ if ($key =~ m/"((?:\\.|[^\\])*)"/s) {
+ @keys = _unescape "$1";
+ } else {
+ ## ol-dstyle binding... only one key (or Meta+key)
+ my ($isctrl, $orig) = (0, $key);
+ $isctrl = $key =~ s/\b(C|Control|CTRL)-//i;
+ push(@keys, ord("\e")) if $key =~ s/\b(M|Meta)-//i; ## is meta?
+ ## Isolate key part. This matches GNU's implementation.
+ ## If the key is '-', be careful not to delete it!
+ $key =~ s/.*-(.)/$1/;
+ if ($key =~ /^(space|spc)$/i) { $key = ' '; }
+ elsif ($key =~ /^(rubout|del)$/i) { $key = "\x7f"; }
+ elsif ($key =~ /^tab$/i) { $key = "\t"; }
+ elsif ($key =~ /^(return|ret)$/i) { $key = "\r"; }
+ elsif ($key =~ /^(newline|lfd)$/i) { $key = "\n"; }
+ elsif ($key =~ /^(escape|esc)$/i) { $key = "\e"; }
+ elsif (length($key) > 1) {
+ warn "Warning$InputLocMsg: strange binding [$orig]\n" if $^W;
+ }
+ $key = ord($key);
+ $key = &ctrl($key) if $isctrl;
+ push(@keys, $key);
+ }
+
+ #
+ ## Now do the mapping of the sequence represented in @keys
+ #
+ # print "&actually_do_binding($func, @keys)\n"; ##DEBUG
+ push @arr, $func, [@keys];
+ #&actually_do_binding($func, \@keys);
+ }
+ &actually_do_binding(@arr);
+}
+
+sub read_an_init_file {
+ my $file = shift;
+ my $include_depth = shift;
+ local *RC;
+ $file =~ s/^~([\\\/])/$ENV{HOME}$1/ if not -f $file and exists $ENV{HOME};
+ return unless open RC, "< $file";
+ my (@action) = ('exec'); ## exec, skip, ignore (until appropriate endif)
+ my (@level) = (); ## if, else
+
+ local $/ = "\n";
+ while (<RC>) {
+ s/^\s+//;
+ next if m/^\s*(#|$)/;
+ $InputLocMsg = " [$file line $.]";
+ if (/^\$if\s+(.*)/) {
+ my($test) = $1;
+ push(@level, 'if');
+ if ($action[$#action] ne 'exec') {
+ ## We're supposed to be skipping or ignoring this level,
+ ## so for subsequent levels we really ignore completely.
+ push(@action, 'ignore');
+ } else {
+ ## We're executing this IF... do the test.
+ ## The test is either "term=xxxx", or just a string that
+ ## we compare to $rl_readline_name;
+ if ($test =~ /term=([a-z0-9]+)/) {
+ $test = ($ENV{'TERM'} && $1 eq $ENV{'TERM'});
+ } else {
+ $test = $test =~ /^(perl|$rl_readline_name)\s*$/i;
+ }
+ push(@action, $test ? 'exec' : 'skip');
+ }
+ next;
+ } elsif (/^\$endif\b/) {
+ die qq/\rWarning$InputLocMsg: unmatched endif\n/ if @level == 0;
+ pop(@level);
+ pop(@action);
+ next;
+ } elsif (/^\$else\b/) {
+ die qq/\rWarning$InputLocMsg: unmatched else\n/ if
+ @level == 0 || $level[$#level] ne 'if';
+ $level[$#level] = 'else'; ## an IF turns into an ELSE
+ if ($action[$#action] eq 'skip') {
+ $action[$#action] = 'exec'; ## if were SKIPing, now EXEC
+ } else {
+ $action[$#action] = 'ignore'; ## otherwise, just IGNORE.
+ }
+ next;
+ } elsif (/^\$include\s+(\S+)/) {
+ if ($include_depth > $max_include_depth) {
+ warn "Deep recursion in \$include directives in $file.\n";
+ } else {
+ read_an_init_file($1, $include_depth + 1);
+ }
+ } elsif ($action[$#action] ne 'exec') {
+ ## skipping this one....
+ # readline permits trailing comments in inputrc
+ # this seems to solve the warnings caused by trailing comments in the
+ # default /etc/inputrc on Mandrake Linux boxes.
+ } elsif (m/\s*set\s+(\S+)\s+(\S*)/) { # Allow trailing comment
+ &rl_set($1, $2, $file);
+ } elsif (m/^\s*(\S+):\s+("(?:\\.|[^\\\"])*"|'(\\.|[^\\\'])*')/) { # Allow trailing comment
+ &rl_bind($1, $2);
+ } elsif (m/^\s*(\S+|"[^\"]+"):\s+(\S+)/) { # Allow trailing comment
+ &rl_bind($1, $2);
+ } else {
+ chomp;
+ warn "\rWarning$InputLocMsg: Bad line [$_]\n" if $^W;
+ }
+ }
+ close(RC);
+}
+
+sub F_ReReadInitFile
+{
+ my ($file) = $ENV{'TRP_INPUTRC'};
+ $file = $ENV{'INPUTRC'} unless defined $file;
+ unless (defined $file) {
+ return unless defined $ENV{'HOME'};
+ $file = "$ENV{'HOME'}/.inputrc";
+ }
+ read_an_init_file($file, 0);
+}
+
+sub get_ornaments_selected {
+ return if @$rl_term_set >= 6;
+ local $^W=0;
+ my $Orig = $Term::ReadLine::Perl::term->ornaments();
+ eval {
+ # Term::ReadLine does not expose its $terminal, so make another
+ require Term::Cap;
+ my $terminal = Tgetent Term::Cap ({OSPEED=>9600});
+ # and be sure the terminal supports highlighting
+ $terminal->Trequire('mr');
+ };
+ if (!$@ and $Orig ne ',,,'){
+ my @set = @$rl_term_set;
+
+ $Term::ReadLine::Perl::term->ornaments
+ (join(',', (split(/,/, $Orig))[0,1]) . ',mr,me') ;
+ @set[4,5] = @$rl_term_set[2,3];
+ $Term::ReadLine::Perl::term->ornaments($Orig);
+ @$rl_term_set = @set;
+ } else {
+ @$rl_term_set[4,5] = @$rl_term_set[2,3];
+ }
+}
+
+sub readline_dumb {
+ local $\ = '';
+ print $term_OUT $prompt;
+ local $/ = "\n";
+ return undef
+ if !defined($line = $Term::ReadLine::Perl::term->get_line);
+ chomp($line);
+ $| = $oldbar;
+ select $old;
+ return $line;
+}
+
+##
+## This is it. Called as &readline'readline($prompt, $default),
+## (DEFAULT can be omitted) the next input line is returned (undef on EOF).
+##
+sub readline
+{
+ $Term::ReadLine::Perl::term->register_Tk
+ if not $Term::ReadLine::registered and $Term::ReadLine::toloop
+ and defined &Tk::DoOneEvent;
+ if ($stdin_not_tty) {
+ local $/ = "\n";
+ return undef if !defined($line = <$term_IN>);
+ chomp($line);
+ return $line;
+ }
+
+ $old = select $term_OUT;
+ $oldbar = $|;
+ local($|) = 1;
+ local($input);
+
+ ## prompt should be given to us....
+ $prompt = defined($_[0]) ? $_[0] : 'INPUT> ';
+
+ # Try to move cursor to the beginning of the next line if this line
+ # contains anything.
+
+ # On DOSish 80-wide console
+ # perl -we "print 1 x shift, qq(\b2\r3); sleep 2" 79
+ # prints 3 on the same line,
+ # perl -we "print 1 x shift, qq(\b2\r3); sleep 2" 80
+ # on the next; $rl_screen_width is 79.
+
+ # on XTerm one needs to increase the number by 1.
+
+ print $term_OUT ' ' x ($rl_screen_width - !$rl_last_pos_can_backspace) . "\b \r"
+ if $rl_scroll_nextline;
+
+ if ($dumb_term) {
+ return readline_dumb;
+ }
+
+ # test if we resume an 'Operate' command
+ if ($rl_OperateCount > 0 && (!defined $_[1] || $_[1] eq '')) {
+ ## it's from a valid previous 'Operate' command and
+ ## user didn't give a default line
+ ## we leave $rl_HistoryIndex untouched
+ $line = $rl_History[$rl_HistoryIndex];
+ } else {
+ ## set history pointer at the end of history
+ $rl_HistoryIndex = $#rl_History + 1;
+ $rl_OperateCount = 0;
+ $line = defined $_[1] ? $_[1] : '';
+ }
+ $rl_OperateCount-- if $rl_OperateCount > 0;
+
+ $line_for_revert = $line;
+
+# I don't think we need to do this, actually...
+# while (&ioctl(STDIN,$FIONREAD,$fion))
+# {
+# local($n_chars_available) = unpack ($fionread_t, $fion);
+# ## print "n_chars = $n_chars_available\n";
+# last if $n_chars_available == 0;
+# $line .= getc_with_pending; # should we prepend if $rl_start_default_at_beginning?
+# }
+
+ $D = $rl_start_default_at_beginning ? 0 : length($line); ## set dot.
+ $LastCommandKilledText = 0; ## heck, was no last command.
+ $lastcommand = ''; ## Well, there you go.
+ $line_rl_mark = -1;
+
+ ##
+ ## some stuff for &redisplay.
+ ##
+ $lastredisplay = ''; ## Was no last redisplay for this time.
+ $lastlen = length($lastredisplay);
+ $lastpromptlen = 0;
+ $lastdelta = 0; ## Cursor was nowhere
+ $si = 0; ## Want line to start left-justified
+ $force_redraw = 1; ## Want to display with brute force.
+ if (!eval {SetTTY()}) { ## Put into raw mode.
+ warn $@ if $@;
+ $dumb_term = 1;
+ return readline_dumb;
+ }
+
+ *KeyMap = $var_EditingMode;
+ undef($AcceptLine); ## When set, will return its value.
+ undef($ReturnEOF); ## ...unless this on, then return undef.
+ @Pending = (); ## Contains characters to use as input.
+ @undo = (); ## Undo history starts empty for each line.
+ @undoGroupS = (); ## Undo groups start empty for each line.
+ undef $memorizedArg; ## No digitArgument memorized
+ undef $memorizedPos; ## No position memorized
+
+ undef $Vi_undo_state;
+ undef $Vi_undo_all_state;
+
+ # We need to do some additional initialization for vi mode.
+ # RS: bug reports/platform issues are welcome: russ@dvns.com
+ if ($KeyMap{'name'} eq 'vi_keymap'){
+ &F_ViInput();
+ if ($rl_vi_replace_default_on_insert){
+ local $^W=0;
+ my $Orig = $Term::ReadLine::Perl::term->ornaments();
+ eval {
+ # Term::ReadLine does not expose its $terminal, so make another
+ require Term::Cap;
+ my $terminal = Tgetent Term::Cap ({OSPEED=>9600});
+ # and be sure the terminal supports highlighting
+ $terminal->Trequire('mr');
+ };
+ if (!$@ and $Orig ne ',,,'){
+ $Term::ReadLine::Perl::term->ornaments
+ (join(',', (split(/,/, $Orig))[0,1]) . ',mr,me')
+ }
+ my $F_SelfInsert_Real = \&F_SelfInsert;
+ *F_SelfInsert = sub {
+ $Term::ReadLine::Perl::term->ornaments($Orig);
+ &F_ViChangeEntireLine;
+ local $^W=0;
+ *F_SelfInsert = $F_SelfInsert_Real;
+ &F_SelfInsert;
+ };
+ my $F_ViEndInsert_Real = \&F_ViEndInsert;
+ *F_ViEndInsert = sub {
+ $Term::ReadLine::Perl::term->ornaments($Orig);
+ local $^W=0;
+ *F_SelfInsert = $F_SelfInsert_Real;
+ *F_ViEndInsert = $F_ViEndInsert_Real;
+ &F_ViEndInsert;
+ $force_redraw = 1;
+ redisplay();
+ };
+ }
+ }
+
+ if ($rl_default_selected) {
+ redisplay_high();
+ } else {
+ &redisplay(); ## Show the line (prompt+default at this point).
+ }
+
+ # pretend input if we 'Operate' on more than one line
+ &F_OperateAndGetNext($rl_OperateCount) if $rl_OperateCount > 0;
+
+ $rl_first_char = 1;
+ while (!defined($AcceptLine)) {
+ ## get a character of input
+ $input = &getc_with_pending(); # bug in debugger, returns 42. - No more!
+
+ unless (defined $input) {
+ # XXX What to do??? Until this is clear, just pretend we got EOF
+ $AcceptLine = $ReturnEOF = 1;
+ last;
+ }
+ preserve_state();
+
+ $ThisCommandKilledText = 0;
+ ##print "\n\rline is @$D:[$line]\n\r"; ##DEBUG
+ my $cmd = get_command($var_EditingMode, ord($input));
+ if ( $rl_first_char && $cmd =~ /^F_(SelfInsert$|Yank)/
+ && length $line && $rl_default_selected ) {
+ # (Backward)?DeleteChar specialcased in the code
+ $line = '';
+ $D = 0;
+ $cmd = 'F_BackwardDeleteChar' if $cmd eq 'F_DeleteChar';
+ }
+ undef $doingNumArg;
+ &$cmd(1, ord($input)); ## actually execute input
+ $rl_first_char = 0;
+ $lastcommand = $cmd;
+ *KeyMap = $var_EditingMode; # JP: added
+
+ # In Vi command mode, don't position the cursor beyond the last
+ # character of the line buffer.
+ &F_BackwardChar(1) if $Vi_mode and $line ne ''
+ and &at_end_of_line and $KeyMap{'name'} eq 'vicmd_keymap';
+
+ &redisplay();
+ $LastCommandKilledText = $ThisCommandKilledText;
+ }
+
+ undef @undo; ## Release the memory.
+ undef @undoGroupS; ## Release the memory.
+ &ResetTTY; ## Restore the tty state.
+ $| = $oldbar;
+ select $old;
+ return undef if defined($ReturnEOF);
+ #print STDOUT "|al=`$AcceptLine'";
+ $AcceptLine; ## return the line accepted.
+}
+
+## ctrl(ord('a')) will return the ordinal for Ctrl-A.
+sub ctrl {
+ $_[0] ^ (($_[0]>=ord('a') && $_[0]<=ord('z')) ? 0x60 : 0x40);
+}
+
+
+
+sub SetTTY {
+ return if $dumb_term || $stdin_not_tty;
+ #return system 'stty raw -echo' if defined &DB::DB;
+ if (defined $term_readkey) {
+ Term::ReadKey::ReadMode(4, $term_IN);
+ if ($^O eq 'MSWin32') {
+ # If we reached this, Perl isn't cygwin; Enter sends \r; thus we need binmode
+ # XXXX Do we need to undo??? $term_IN is most probably private now...
+ binmode $term_IN;
+ }
+ return 1;
+ }
+# system 'stty raw -echo';
+
+ $sgttyb = ''; ## just to quiet "perl -w";
+ if ($useioctl && $^O ne 'solaris' && defined $TIOCGETP
+ && &ioctl($term_IN,$TIOCGETP,$sgttyb)) {
+ @tty_buf = unpack($sgttyb_t,$sgttyb);
+ if (defined $ENV{OS2_SHELL}) {
+ $tty_buf[3] &= ~$mode;
+ $tty_buf[3] &= ~$ECHO;
+ } else {
+ $tty_buf[4] |= $mode;
+ $tty_buf[4] &= ~$ECHO;
+ }
+ $sgttyb = pack($sgttyb_t,@tty_buf);
+ &ioctl($term_IN,$TIOCSETP,$sgttyb) || die "Can't ioctl TIOCSETP: $!";
+ } elsif (!$usestty) {
+ return 0;
+ } else {
+ warn <<EOW if $useioctl and not defined $ENV{PERL_READLINE_NOWARN};
+Can't ioctl TIOCGETP: $!
+Consider installing Term::ReadKey from CPAN site nearby
+ at http://www.perl.com/CPAN
+Or use
+ perl -MCPAN -e shell
+to reach CPAN. Falling back to 'stty'.
+ If you do not want to see this warning, set PERL_READLINE_NOWARN
+in your environment.
+EOW
+ # '; # For Emacs.
+ $useioctl = 0;
+ system 'stty raw -echo' and ($usestty = 0, die "Cannot call `stty': $!");
+ if ($^O eq 'MSWin32') {
+ # If we reached this, Perl isn't cygwin, but STTY is present ==> cygwin
+ # The symptoms: now Enter sends \r; thus we need binmode
+ # XXXX Do we need to undo??? $term_IN is most probably private now...
+ binmode $term_IN;
+ }
+ }
+ return 1;
+}
+
+sub ResetTTY {
+ return if $dumb_term || $stdin_not_tty;
+ #return system 'stty -raw echo' if defined &DB::DB;
+ if (defined $term_readkey) {
+ return Term::ReadKey::ReadMode(0, $term_IN);
+ }
+
+# system 'stty -raw echo';
+ if ($useioctl) {
+ &ioctl($term_IN,$TIOCGETP,$sgttyb) || die "Can't ioctl TIOCGETP: $!";
+ @tty_buf = unpack($sgttyb_t,$sgttyb);
+ if (defined $ENV{OS2_SHELL}) {
+ $tty_buf[3] |= $mode;
+ $tty_buf[3] |= $ECHO;
+ } else {
+ $tty_buf[4] &= ~$mode;
+ $tty_buf[4] |= $ECHO;
+ }
+ $sgttyb = pack($sgttyb_t,@tty_buf);
+ &ioctl($term_IN,$TIOCSETP,$sgttyb) || die "Can't ioctl TIOCSETP: $!";
+ } elsif ($usestty) {
+ system 'stty -raw echo' and die "Cannot call `stty': $!";
+ }
+}
+
+# Substr_with_props: gives the substr of prompt+string with embedded
+# face-change commands
+
+sub substr_with_props {
+ my ($p, $s, $from, $len, $ket, $bsel, $esel) = @_;
+ my $lp = length $p;
+
+ defined $from or $from = 0;
+ defined $len or $len = length($p) + length($s) - $from;
+ unless (defined $ket) {
+ warn 'bug in Term::ReadLine::Perl, please report to its author cpan@ilyaz.org';
+ $ket = '';
+ }
+ # We may draw over to put cursor in a correct position:
+ $ket = '' if $len < length($p) + length($s) - $from; # Not redrawn
+
+ if ($from >= $lp) {
+ $p = '';
+ $s = substr $s, $from - $lp;
+ $lp = 0;
+ } else {
+ $p = substr $p, $from;
+ $lp -= $from;
+ $from = 0;
+ }
+ $s = substr $s, 0, $len - $lp;
+ $p =~ s/^(\s*)//; my $bs = $1;
+ $p =~ s/(\s*)$//; my $as = $1;
+ $p = $rl_term_set->[0] . $p . $rl_term_set->[1] if length $p;
+ $p = "$bs$p$as";
+ $ket = chop $s if $ket;
+ if (defined $bsel and $bsel != $esel) {
+ $bsel = $len if $bsel > $len;
+ $esel = $len if $esel > $len;
+ }
+ if (defined $bsel and $bsel != $esel) {
+ get_ornaments_selected;
+ $bsel -= $lp; $esel -= $lp;
+ my ($pre, $sel, $post) =
+ (substr($s, 0, $bsel),
+ substr($s, $bsel, $esel-$bsel),
+ substr($s, $esel));
+ $pre = $rl_term_set->[2] . $pre . $rl_term_set->[3] if length $pre;
+ $sel = $rl_term_set->[4] . $sel . $rl_term_set->[5] if length $sel;
+ $post = $rl_term_set->[2] . $post . $rl_term_set->[3] if length $post;
+ $s = "$pre$sel$post"
+ } else {
+ $s = $rl_term_set->[2] . $s . $rl_term_set->[3] if length $s;
+ }
+
+ if (!$lp) { # Should not happen...
+ return $s;
+ } elsif (!length $s) { # Should not happen
+ return $p;
+ } else { # Do not underline spaces in the prompt
+ return "$p$s"
+ . (length $ket ? ($rl_term_set->[0] . $ket . $rl_term_set->[1]) : '');
+ }
+}
+
+sub redisplay_high {
+ get_ornaments_selected();
+ @$rl_term_set[2,3,4,5] = @$rl_term_set[4,5,2,3];
+ &redisplay(); ## Show the line, default inverted.
+ @$rl_term_set[2,3,4,5] = @$rl_term_set[4,5,2,3];
+ $force_redraw = 1;
+}
+
+##
+## redisplay()
+##
+## Updates the screen to reflect the current $line.
+##
+## For the purposes of this routine, we prepend the prompt to a local copy of
+## $line so that we display the prompt as well. We then modify it to reflect
+## that some characters have different sizes (i.e. control-C is represented
+## as ^C, tabs are expanded, etc.)
+##
+## This routine is somewhat complicated by two-byte characters.... must
+## make sure never to try do display just half of one.
+##
+## NOTE: If an argument is given, it is used instead of the prompt.
+##
+## This is some nasty code.
+##
+sub redisplay
+{
+ ## local $line has prompt also; take that into account with $D.
+ local($prompt) = defined($_[0]) ? $_[0] : $prompt;
+ my ($thislen, $have_bra);
+ my($dline) = $prompt . $line;
+ local($D) = $D + length($prompt);
+ my ($bsel, $esel);
+ if (defined pos $line) {
+ $bsel = (pos $line) + length $prompt;
+ }
+ my ($have_ket) = '';
+
+ ##
+ ## If the line contains anything that might require special processing
+ ## for displaying (such as tabs, control characters, etc.), we will
+ ## take care of that now....
+ ##
+ if ($dline =~ m/[^\x20-\x7e]/)
+ {
+ local($new, $Dinc, $c) = ('', 0);
+
+ ## Look at each character of $dline in turn.....
+ for ($i = 0; $i < length($dline); $i++) {
+ $c = substr($dline, $i, 1);
+
+ ## A tab to expand...
+ if ($c eq "\t") {
+ $c = ' ' x (8 - (($i-length($prompt)) % 8));
+
+ ## A control character....
+ } elsif ($c =~ tr/\000-\037//) {
+ $c = sprintf("^%c", ord($c)+ord('@'));
+
+ ## the delete character....
+ } elsif (ord($c) == 127) {
+ $c = '^?';
+ }
+ $new .= $c;
+
+ ## Bump over $D if this char is expanded and left of $D.
+ $Dinc += length($c) - 1 if (length($c) > 1 && $i < $D);
+ ## Bump over $bsel if this char is expanded and left of $bsel.
+ $bsel += length($c) - 1 if (defined $bsel && length($c) > 1 && $i < $bsel);
+ }
+ $dline = $new;
+ $D += $Dinc;
+ }
+
+ ##
+ ## Now $dline is what we'd like to display (with a prepended prompt)
+ ## $D is the position of the cursor on it.
+ ##
+ ## If it's too long to fit on the line, we must decide what we can fit.
+ ##
+ ## If we end up moving the screen index ($si) [index of the leftmost
+ ## character on the screen], to some place other than the front of the
+ ## the line, we'll have to make sure that it's not on the first byte of
+ ## a 2-byte character, 'cause we'll be placing a '<' marker there, and
+ ## that would screw up the 2-byte character.
+ ##
+ ## $si is preserved between several displays (if possible).
+ ##
+ ## Similarly, if the line needs chopped off, we make sure that the
+ ## placement of the tailing '>' won't screw up any 2-byte character in
+ ## the vicinity.
+
+ # Now $si keeps the value from previous display
+ if ($D == length($prompt) # If prompts fits exactly, show only if need not show trailing '>'
+ and length($prompt) < $rl_screen_width - (0 != length $dline)) {
+ $si = 0; ## prefer displaying the whole prompt
+ } elsif ($si >= $D) { # point to the left of what was displayed
+ $si = &max(0, $D - $rl_margin);
+ $si-- if $si > 0 && $si != length($prompt) && !&OnSecondByte($si);
+ } elsif ($si + $rl_screen_width <= $D) { # Point to the right of ...
+ $si = &min(length($dline), ($D - $rl_screen_width) + $rl_margin);
+ $si-- if $si > 0 && $si != length($prompt) && !&OnSecondByte($si);
+ } elsif (length($dline) - $si < $rl_screen_width - $rl_margin and $si) {
+ # Too little of the line shown
+ $si = &max(0, length($dline) - $rl_screen_width + 3);
+ $si-- if $si > 0 && $si != length($prompt) && !&OnSecondByte($si);
+ } else {
+ ## Fine as-is.... don't need to change $si.
+ }
+ $have_bra = 1 if $si != 0; # Need the "chopped-off" marker
+
+ $thislen = &min(length($dline) - $si, $rl_screen_width);
+ if ($si + $thislen < length($dline)) {
+ ## need to place a '>'... make sure to place on first byte.
+ $thislen-- if &OnSecondByte($si+$thislen-1);
+ substr($dline, $si+$thislen-1,1) = '>';
+ $have_ket = 1;
+ }
+
+ ##
+ ## Now know what to display.
+ ## Must get substr($dline, $si, $thislen) on the screen,
+ ## with the cursor at $D-$si characters from the left edge.
+ ##
+ $dline = substr($dline, $si, $thislen);
+ $delta = $D - $si; ## delta is cursor distance from beginning of $dline.
+ if (defined $bsel) { # Highlight the selected part
+ $bsel -= $si;
+ $esel = $delta;
+ ($bsel, $esel) = ($esel, $bsel) if $bsel > $esel;
+ $bsel = 0 if $bsel < 0;
+ if ($have_ket) {
+ $esel = $thislen - 1 if $esel > $thislen - 1;
+ } else {
+ $esel = $thislen if $esel > $thislen;
+ }
+ }
+ if ($si >= length($prompt)) { # Keep $dline for $lastredisplay...
+ $prompt = ($have_bra ? "<" : "");
+ $dline = substr $dline, 1; # After prompt
+ $bsel = 1 if defined $bsel and $bsel == 0;
+ } else {
+ $dline = substr($dline, (length $prompt) - $si);
+ $prompt = substr($prompt,$si);
+ substr($prompt, 0, 1) = '<' if $si > 0;
+ }
+ # Now $dline is the part after the prompt...
+
+ ##
+ ## Now must output $dline, with cursor $delta spaces from left of TTY
+ ##
+
+ local ($\, $,) = ('','');
+
+ ##
+ ## If $force_redraw is not set, we can attempt to optimize the redisplay
+ ## However, if we don't happen to find an easy way to optimize, we just
+ ## fall through to the brute-force method of re-drawing the whole line.
+ ##
+ if (not $force_redraw and not defined $bsel)
+ {
+ ## can try to optimize here a bit.
+
+ ## For when we only need to move the cursor
+ if ($lastredisplay eq $dline and $lastpromptlen == length $prompt) {
+ ## If we need to move forward, just overwrite as far as we need.
+ if ($lastdelta < $delta) {
+ print $term_OUT
+ substr_with_props($prompt, $dline,
+ $lastdelta, $delta-$lastdelta, $have_ket);
+ ## Need to move back.
+ } elsif($lastdelta > $delta) {
+ ## Two ways to move back... use the fastest. One is to just
+ ## backspace the proper amount. The other is to jump to the
+ ## the beginning of the line and overwrite from there....
+ my $out = substr_with_props($prompt, $dline, 0, $delta, $have_ket);
+ if ($lastdelta - $delta <= length $out) {
+ print $term_OUT "\b" x ($lastdelta - $delta);
+ } else {
+ print $term_OUT "\r", $out;
+ }
+ }
+ ($lastlen, $lastredisplay, $lastdelta, $lastpromptlen)
+ = ($thislen, $dline, $delta, length $prompt);
+ # print $term_OUT "\a"; # Debugging
+ return;
+ }
+
+ ## for when we've just added stuff to the end
+ if ($thislen > $lastlen &&
+ $lastdelta == $lastlen &&
+ $delta == $thislen &&
+ $lastpromptlen == length($prompt) &&
+ substr($dline, 0, $lastlen - $lastpromptlen) eq $lastredisplay)
+ {
+ print $term_OUT substr_with_props($prompt, $dline,
+ $lastdelta, undef, $have_ket);
+ # print $term_OUT "\a"; # Debugging
+ ($lastlen, $lastredisplay, $lastdelta, $lastpromptlen)
+ = ($thislen, $dline, $delta, length $prompt);
+ return;
+ }
+
+ ## There is much more opportunity for optimizing.....
+ ## something to work on later.....
+ }
+
+ ##
+ ## Brute force method of redisplaying... redraw the whole thing.
+ ##
+
+ print $term_OUT "\r", substr_with_props($prompt, $dline, 0, undef, $have_ket, $bsel, $esel);
+ my $back = length ($dline) + length ($prompt) - $delta;
+ $back += $lastlen - $thislen,
+ print $term_OUT ' ' x ($lastlen - $thislen) if $lastlen > $thislen;
+
+ if ($back) {
+ my $out = substr_with_props($prompt, $dline, 0, $delta, $have_ket, $bsel, $esel);
+ if ($back <= length $out and not defined $bsel) {
+ print $term_OUT "\b" x $back;
+ } else {
+ print $term_OUT "\r", $out;
+ }
+ }
+
+ ($lastlen, $lastredisplay, $lastdelta, $lastpromptlen)
+ = ($thislen, $dline, $delta, length $prompt);
+
+ $force_redraw = 0;
+}
+
+sub min { $_[0] < $_[1] ? $_[0] : $_[1]; }
+
+sub getc_with_pending {
+
+ my $key = @Pending ? shift(@Pending) : &$rl_getc;
+
+ # Save keystrokes for vi '.' command
+ push(@$Dot_buf, $key) if $Dot_buf;
+
+ $key;
+}
+
+sub rl_getc {
+ my $key; # JP: Added missing declaration
+ if (defined $term_readkey) { # XXXX ???
+ $Term::ReadLine::Perl::term->Tk_loop
+ if $Term::ReadLine::toloop && defined &Tk::DoOneEvent;
+ $key = Term::ReadKey::ReadKey(0, $term_IN);
+ } else {
+ $key = $Term::ReadLine::Perl::term->get_c;
+ }
+}
+
+##
+## get_command(keymap, ord_command_char)
+##
+## If the KEYMAP has an entry for COMMAND, it is returned.
+## Otherwise, the default command is returned.
+##
+sub get_command
+{
+ local *KeyMap = shift;
+ my ($key) = @_;
+ my $cmd = defined($KeyMap[$key]) ? $KeyMap[$key]
+ : ($KeyMap{'default'} || 'F_Ding');
+ if (!defined($cmd) || $cmd eq ''){
+ warn "internal error (key=$key)";
+ $cmd = 'F_Ding';
+ }
+ $cmd
+}
+
+##
+## do_command(keymap, numericarg, command)
+##
+## If the KEYMAP has an entry for COMMAND, it is executed.
+## Otherwise, the default command for the keymap is executed.
+##
+sub do_command
+{
+ my ($keymap, $count, $key) = @_;
+ my $cmd = get_command($keymap, $key);
+
+ local *KeyMap = $keymap; # &$cmd may expect it...
+ &$cmd($count, $key);
+ $lastcommand = $cmd;
+}
+
+##
+## Save whatever state we wish to save as an anonymous array.
+## The only other function that needs to know about its encoding is getstate/preserve_state.
+##
+sub savestate
+{
+ [$D, $si, $LastCommandKilledText, $KillBuffer, $line, @_];
+}
+
+# consolidate only-movement changes together...
+sub preserve_state {
+ return if $Vi_mode;
+ push(@undo, savestate()), return unless @undo;
+ my $last = $undo[-1];
+ my @only_movement;
+ if ( #$last->[1] == $si and $last->[2] eq $LastCommandKilledText
+ # and $last->[3] eq $KillBuffer and
+ $last->[4] eq $line ) {
+ # Only position changed; remove old only-position-changed records
+ pop @undo if $undo[-1]->[5];
+ @only_movement = 1;
+ }
+ push(@undo, savestate(@only_movement));
+}
+
+##
+## $_[1] is an ASCII ordinal; inserts as per $count.
+##
+sub F_SelfInsert
+{
+ remove_selection();
+ my ($count, $ord) = @_;
+ my $text2add = pack('C', $ord) x $count;
+ if ($InsertMode) {
+ substr($line,$D,0) .= $text2add;
+ } else {
+ ## note: this can screw up with 2-byte characters.
+ substr($line,$D,length($text2add)) = $text2add;
+ }
+ $D += length($text2add);
+}
+
+##
+## Return the line as-is to the user.
+##
+sub F_AcceptLine
+{
+ &add_line_to_history;
+ $AcceptLine = $line;
+ local $\ = '';
+ print $term_OUT "\r\n";
+ $force_redraw = 0;
+ (pos $line) = undef; # Another way to force redraw...
+}
+
+sub add_line_to_history
+{
+ ## Insert into history list if:
+ ## * bigger than the minimal length
+ ## * not same as last entry
+ ##
+ if (length($line) >= $minlength
+ && (!@rl_History || $rl_History[$#rl_History] ne $line)
+ ) {
+ ## if the history list is full, shift out an old one first....
+ while (@rl_History >= $rl_MaxHistorySize) {
+ shift(@rl_History);
+ $rl_HistoryIndex--;
+ }
+
+ push(@rl_History, $line); ## tack new one on the end
+ }
+}
+
+
+sub remove_selection {
+ if ( $rl_first_char && length $line && $rl_default_selected ) {
+ $line = '';
+ $D = 0;
+ return 1;
+ }
+ if ($rl_delete_selection and defined pos $line and $D != pos $line) {
+ kill_text(pos $line, $D);
+ return 1;
+ }
+ return;
+}
+
+#sub F_ReReadInitFile;
+#sub rl_getc;
+sub F_ForwardChar;
+sub F_BackwardChar;
+sub F_BeginningOfLine;
+sub F_EndOfLine;
+sub F_ForwardWord;
+sub F_BackwardWord;
+sub F_RedrawCurrentLine;
+sub F_ClearScreen;
+# sub F_SelfInsert;
+sub F_QuotedInsert;
+sub F_TabInsert;
+#sub F_AcceptLine;
+sub F_OperateAndGetNext;
+sub F_BackwardDeleteChar;
+sub F_DeleteChar;
+sub F_UnixWordRubout;
+sub F_UnixLineDiscard;
+sub F_UpcaseWord;
+sub F_DownCaseWord;
+sub F_CapitalizeWord;
+sub F_TransposeWords;
+sub F_TransposeChars;
+sub F_PreviousHistory;
+sub F_NextHistory;
+sub F_BeginningOfHistory;
+sub F_EndOfHistory;
+sub F_ReverseSearchHistory;
+sub F_ForwardSearchHistory;
+sub F_HistorySearchBackward;
+sub F_HistorySearchForward;
+sub F_KillLine;
+sub F_BackwardKillLine;
+sub F_Yank;
+sub F_YankPop;
+sub F_YankNthArg;
+sub F_KillWord;
+sub F_BackwardKillWord;
+sub F_Abort;
+sub F_DoLowercaseVersion;
+sub F_DoMetaVersion;
+sub F_DoControlVersion;
+sub F_Undo;
+sub F_RevertLine;
+sub F_EmacsEditingMode;
+sub F_Interrupt;
+sub F_PrefixMeta;
+sub F_UniversalArgument;
+sub F_DigitArgument;
+sub F_OverwriteMode;
+sub F_InsertMode;
+sub F_ToggleInsertMode;
+sub F_Suspend;
+sub F_Ding;
+sub F_PossibleCompletions;
+sub F_Complete;
+sub F_YankClipboard;
+sub F_CopyRegionAsKillClipboard;
+sub F_KillRegionClipboard;
+sub clipboard_set;
+sub F_BeginUndoGroup;
+sub F_EndUndoGroup;
+sub F_DoNothing;
+sub F_ForceMemorizeDigitArgument;
+sub F_MemorizeDigitArgument;
+sub F_UnmemorizeDigitArgument;
+sub F_ResetDigitArgument;
+sub F_MergeInserts;
+sub F_MemorizePos;
+sub F_BeginPasteGroup;
+sub F_EndPasteGroup;
+sub F_BeginEditGroup;
+sub F_EndEditGroup;
+
+# Comment next line and __DATA__ line below to disable the selfloader.
+
+use SelfLoader;
+
+1;
+
+__DATA__
+
+# From here on anything may be autoloaded
+
+sub max { $_[0] > $_[1] ? $_[0] : $_[1]; }
+sub isupper { ord($_[0]) >= ord('A') && ord($_[0]) <= ord('Z'); }
+sub islower { ord($_[0]) >= ord('a') && ord($_[0]) <= ord('z'); }
+sub toupper { &islower ? pack('c', ord($_[0])-ord('a')+ord('A')) : $_[0];}
+sub tolower { &isupper ? pack('c', ord($_[0])-ord('A')+ord('a')) : $_[0];}
+
+##
+## rl_set(var_name, value_string)
+##
+## Sets the named variable as per the given value, if both are appropriate.
+## Allows the user of the package to set such things as HorizontalScrollMode
+## and EditingMode. Value_string may be of the form
+## HorizontalScrollMode
+## horizontal-scroll-mode
+##
+## Also called during the parsing of ~/.inputrc for "set var value" lines.
+##
+## The previous value is returned, or undef on error.
+###########################################################################
+## Consider the following example for how to add additional variables
+## accessible via rl_set (and hence via ~/.inputrc).
+##
+## Want:
+## We want an external variable called "FooTime" (or "foo-time").
+## It may have values "January", "Monday", or "Noon".
+## Internally, we'll want those values to translate to 1, 2, and 12.
+##
+## How:
+## Have an internal variable $var_FooTime that will represent the current
+## internal value, and initialize it to the default value.
+## Make an array %var_FooTime whose keys and values are are the external
+## (January, Monday, Noon) and internal (1, 2, 12) values:
+##
+## $var_FooTime = $var_FooTime{'January'} = 1; #default
+## $var_FooTime{'Monday'} = 2;
+## $var_FooTime{'Noon'} = 12;
+##
+sub rl_set
+{
+ local($var, $val) = @_;
+
+ # &preinit's keys are all Capitalized
+ $val = ucfirst lc $val if $val =~ /^(on|off)$/i;
+
+ $var = 'CompleteAddsuffix' if $var eq 'visible-stats';
+
+ ## if the variable is in the form "some-name", change to "SomeName"
+ local($_) = "\u$var";
+ local($return) = undef;
+ s/-(.)/\u$1/g;
+
+ # Skip unknown variables:
+ return unless defined $ {'readline::'}{"var_$_"};
+ local(*V); # avoid <Undefined value assign to typeglob> warning
+ { local $^W; *V = $ {'readline::'}{"var_$_"}; }
+ if (!defined($V)) { # XXX Duplicate check?
+ warn("Warning$InputLocMsg:\n".
+ " Invalid variable `$var'\n") if $^W;
+ } elsif (!defined($V{$val})) {
+ local(@selections) = keys(%V);
+ warn("Warning$InputLocMsg:\n".
+ " Invalid value `$val' for variable `$var'.\n".
+ " Choose from [@selections].\n") if $^W;
+ } else {
+ $return = $V;
+ $V = $V{$val}; ## make the setting
+ }
+ $return;
+}
+
+##
+## OnSecondByte($index)
+##
+## Returns true if the byte at $index into $line is the second byte
+## of a two-byte character.
+##
+sub OnSecondByte
+{
+ return 0 if !$_rl_japanese_mb || $_[0] == 0 || $_[0] == length($line);
+
+ die 'internal error' if $_[0] > length($line);
+
+ ##
+ ## must start looking from the beginning of the line .... can
+ ## have one- and two-byte characters interspersed, so can't tell
+ ## without starting from some know location.....
+ ##
+ local($i);
+ for ($i = 0; $i < $_[0]; $i++) {
+ next if ord(substr($line, $i, 1)) < 0x80;
+ ## We have the first byte... must bump up $i to skip past the 2nd.
+ ## If that one we're skipping past is the index, it should be changed
+ ## to point to the first byte of the pair (therefore, decremented).
+ return 1 if ++$i == $_[0];
+ }
+ 0; ## seemed to be OK.
+}
+
+##
+## CharSize(index)
+##
+## Returns the size of the character at the given INDEX in the
+## current line. Most characters are just one byte in length,
+## but if the byte at the index and the one after has the high
+## bit set those two bytes are one character of size=2.
+##
+## Assumes that index points to the first of a 2-byte char if not
+## pointing to a 2-byte char.
+##
+sub CharSize
+{
+ return 2 if $_rl_japanese_mb &&
+ ord(substr($line, $_[0], 1)) >= 0x80 &&
+ ord(substr($line, $_[0]+1, 1)) >= 0x80;
+ 1;
+}
+
+sub GetTTY
+{
+ $base_termios = $termios; # make it long enough
+ &ioctl($term_IN,$TCGETS,$base_termios) || die "Can't ioctl TCGETS: $!";
+}
+
+sub XonTTY
+{
+ # I don't know which of these I actually need to do this to, so we'll
+ # just cover all bases.
+
+ &ioctl($term_IN,$TCXONC,$TCOON); # || die "Can't ioctl TCXONC STDIN: $!";
+ &ioctl($term_OUT,$TCXONC,$TCOON); # || die "Can't ioctl TCXONC STDOUT: $!";
+}
+
+sub ___SetTTY
+{
+# print "before SetTTY\n\r";
+# system 'stty -a';
+
+ &XonTTY;
+
+ &GetTTY
+ if !defined($base_termios);
+
+ @termios = unpack($termios_t,$base_termios);
+ $termios[$TERMIOS_IFLAG] |= $TERMIOS_READLINE_ION;
+ $termios[$TERMIOS_IFLAG] &= ~$TERMIOS_READLINE_IOFF;
+ $termios[$TERMIOS_OFLAG] |= $TERMIOS_READLINE_OON;
+ $termios[$TERMIOS_OFLAG] &= ~$TERMIOS_READLINE_OOFF;
+ $termios[$TERMIOS_LFLAG] |= $TERMIOS_READLINE_LON;
+ $termios[$TERMIOS_LFLAG] &= ~$TERMIOS_READLINE_LOFF;
+ $termios[$TERMIOS_VMIN] = 1;
+ $termios[$TERMIOS_VTIME] = 0;
+ $termios = pack($termios_t,@termios);
+ &ioctl($term_IN,$TCSETS,$termios) || die "Can't ioctl TCSETS: $!";
+
+# print "after SetTTY\n\r";
+# system 'stty -a';
+}
+
+sub normal_tty_mode
+{
+ return if $stdin_not_tty || $dumb_term || !$initialized;
+ &XonTTY;
+ &GetTTY if !defined($base_termios);
+ &ResetTTY;
+}
+
+sub ___ResetTTY
+{
+# print "before ResetTTY\n\r";
+# system 'stty -a';
+
+ @termios = unpack($termios_t,$base_termios);
+ $termios[$TERMIOS_IFLAG] |= $TERMIOS_NORMAL_ION;
+ $termios[$TERMIOS_IFLAG] &= ~$TERMIOS_NORMAL_IOFF;
+ $termios[$TERMIOS_OFLAG] |= $TERMIOS_NORMAL_OON;
+ $termios[$TERMIOS_OFLAG] &= ~$TERMIOS_NORMAL_OOFF;
+ $termios[$TERMIOS_LFLAG] |= $TERMIOS_NORMAL_LON;
+ $termios[$TERMIOS_LFLAG] &= ~$TERMIOS_NORMAL_LOFF;
+ $termios = pack($termios_t,@termios);
+ &ioctl($term_IN,$TCSETS,$termios) || die "Can't ioctl TCSETS: $!";
+
+# print "after ResetTTY\n\r";
+# system 'stty -a';
+}
+
+##
+## WordBreak(index)
+##
+## Returns true if the character at INDEX into $line is a basic word break
+## character, false otherwise.
+##
+sub WordBreak
+{
+ index($rl_basic_word_break_characters, substr($line,$_[0],1)) != -1;
+}
+
+sub getstate
+{
+ ($D, $si, $LastCommandKilledText, $KillBuffer, $line) = @{$_[0]};
+ $ThisCommandKilledText = $LastCommandKilledText;
+}
+
+##
+## kills from D=$_[0] to $_[1] (to the killbuffer if $_[2] is true)
+##
+sub kill_text
+{
+ my($from, $to, $save) = (&min($_[0], $_[1]), &max($_[0], $_[1]), $_[2]);
+ my $len = $to - $from;
+ if ($save) {
+ $KillBuffer = '' if !$LastCommandKilledText;
+ if ($from < $LastCommandKilledText - 1) {
+ $KillBuffer = substr($line, $from, $len) . $KillBuffer;
+ } else {
+ $KillBuffer .= substr($line, $from, $len);
+ }
+ $ThisCommandKilledText = 1 + $from;
+ }
+ substr($line, $from, $len) = '';
+
+ ## adjust $D
+ if ($D > $from) {
+ $D -= $len;
+ $D = $from if $D < $from;
+ }
+}
+
+
+###########################################################################
+## Bindable functions... pretty much in the same order as in readline.c ###
+###########################################################################
+
+##
+## Returns true if $D at the end of the line.
+##
+sub at_end_of_line
+{
+ ($D + &CharSize($D)) == (length($line) + 1);
+}
+
+
+##
+## Move forward (right) $count characters.
+##
+sub F_ForwardChar
+{
+ my $count = shift;
+ return &F_BackwardChar(-$count) if $count < 0;
+
+ while (!&at_end_of_line && $count-- > 0) {
+ $D += &CharSize($D);
+ }
+}
+
+##
+## Move backward (left) $count characters.
+##
+sub F_BackwardChar
+{
+ my $count = shift;
+ return &F_ForwardChar(-$count) if $count < 0;
+
+ while (($D > 0) && ($count-- > 0)) {
+ $D--; ## Move back one regardless,
+ $D-- if &OnSecondByte($D); ## another if over a big char.
+ }
+}
+
+##
+## Go to beginning of line.
+##
+sub F_BeginningOfLine
+{
+ $D = 0;
+}
+
+##
+## Move to the end of the line.
+##
+sub F_EndOfLine
+{
+ &F_ForwardChar(100) while !&at_end_of_line;
+}
+
+##
+## Move to the end of this/next word.
+## Done as many times as $count says.
+##
+sub F_ForwardWord
+{
+ my $count = shift;
+ return &F_BackwardWord(-$count) if $count < 0;
+
+ while (!&at_end_of_line && $count-- > 0)
+ {
+ ## skip forward to the next word (if not already on one)
+ &F_ForwardChar(1) while !&at_end_of_line && &WordBreak($D);
+ ## skip forward to end of word
+ &F_ForwardChar(1) while !&at_end_of_line && !&WordBreak($D);
+ }
+}
+
+##
+##
+## Move to the beginning of this/next word.
+## Done as many times as $count says.
+##
+sub F_BackwardWord
+{
+ my $count = shift;
+ return &F_ForwardWord(-$count) if $count < 0;
+
+ while ($D > 0 && $count-- > 0) {
+ ## skip backward to the next word (if not already on one)
+ &F_BackwardChar(1) while (($D > 0) && &WordBreak($D-1));
+ ## skip backward to start of word
+ &F_BackwardChar(1) while (($D > 0) && !&WordBreak($D-1));
+ }
+}
+
+##
+## Refresh the input line.
+##
+sub F_RedrawCurrentLine
+{
+ $force_redraw = 1;
+}
+
+##
+## Clear the screen and refresh the line.
+## If given a numeric arg other than 1, simply refreshes the line.
+##
+sub F_ClearScreen
+{
+ my $count = shift;
+ return &F_RedrawCurrentLine if $count != 1;
+
+ $rl_CLEAR = `clear` if !defined($rl_CLEAR);
+ local $\ = '';
+ print $term_OUT $rl_CLEAR;
+ $force_redraw = 1;
+}
+
+##
+## Insert the next character read verbatim.
+##
+sub F_QuotedInsert
+{
+ my $count = shift;
+ &F_SelfInsert($count, ord(&getc_with_pending));
+}
+
+##
+## Insert a tab.
+##
+sub F_TabInsert
+{
+ my $count = shift;
+ &F_SelfInsert($count, ord("\t"));
+}
+
+## Operate - accept the current line and fetch from the
+## history the next line relative to current line for default.
+sub F_OperateAndGetNext
+{
+ my $count = shift;
+
+ &F_AcceptLine;
+
+ my $remainingEntries = $#rl_History - $rl_HistoryIndex;
+ if ($count > 0 && $remainingEntries >= 0) { # there is something to repeat
+ if ($remainingEntries > 0) { # if we are not on last line
+ $rl_HistoryIndex++; # fetch next one
+ $count = $remainingEntries if $count > $remainingEntries;
+ }
+ $rl_OperateCount = $count;
+ }
+}
+
+##
+## Removes $count chars to left of cursor (if not at beginning of line).
+## If $count > 1, deleted chars saved to kill buffer.
+##
+sub F_BackwardDeleteChar
+{
+ return if remove_selection();
+
+ my $count = shift;
+ return F_DeleteChar(-$count) if $count < 0;
+ my $oldD = $D;
+ &F_BackwardChar($count);
+ return if $D == $oldD;
+ &kill_text($oldD, $D, $count > 1);
+}
+
+##
+## Removes the $count chars from under the cursor.
+## If there is no line and the last command was different, tells
+## readline to return EOF.
+## If there is a line, and the cursor is at the end of it, and we're in
+## tcsh completion mode, then list possible completions.
+## If $count > 1, deleted chars saved to kill buffer.
+##
+sub F_DeleteChar
+{
+ return if remove_selection();
+
+ my $count = shift;
+ return F_DeleteBackwardChar(-$count) if $count < 0;
+ if (length($line) == 0) { # EOF sent (probably OK in DOS too)
+ $AcceptLine = $ReturnEOF = 1 if $lastcommand ne 'F_DeleteChar';
+ return;
+ }
+ if ($D == length ($line))
+ {
+ &complete_internal('?') if $var_TcshCompleteMode;
+ return;
+ }
+ my $oldD = $D;
+ &F_ForwardChar($count);
+ return if $D == $oldD;
+ &kill_text($oldD, $D, $count > 1);
+}
+
+##
+## Kill to previous whitespace.
+##
+sub F_UnixWordRubout
+{
+ return &F_Ding if $D == 0;
+ (my $oldD, local $rl_basic_word_break_characters) = ($D, "\t ");
+ # JP: Fixed a bug here - both were 'my'
+ F_BackwardWord(1);
+ kill_text($D, $oldD, 1);
+}
+
+##
+## Kill line from cursor to beginning of line.
+##
+sub F_UnixLineDiscard
+{
+ return &F_Ding if $D == 0;
+ kill_text(0, $D, 1);
+}
+
+sub F_UpcaseWord { &changecase($_[0], 'up'); }
+sub F_DownCaseWord { &changecase($_[0], 'down'); }
+sub F_CapitalizeWord { &changecase($_[0], 'cap'); }
+
+##
+## Translated from GNUs readline.c
+## One arg is 'up' to upcase $_[0] words,
+## 'down' to downcase them,
+## or something else to capitolize them.
+## If $_[0] is negative, the dot is not moved.
+##
+sub changecase
+{
+ my $op = $_[1];
+
+ my ($start, $state, $c, $olddot) = ($D, 0);
+ if ($_[0] < 0)
+ {
+ $olddot = $D;
+ $_[0] = -$_[0];
+ }
+
+ &F_ForwardWord; ## goes forward $_[0] words.
+
+ while ($start < $D) {
+ $c = substr($line, $start, 1);
+
+ if ($op eq 'up') {
+ $c = &toupper($c);
+ } elsif ($op eq 'down') {
+ $c = &tolower($c);
+ } else { ## must be 'cap'
+ if ($state == 1) {
+ $c = &tolower($c);
+ } else {
+ $c = &toupper($c);
+ $state = 1;
+ }
+ $state = 0 if $c !~ tr/a-zA-Z//;
+ }
+
+ substr($line, $start, 1) = $c;
+ $start++;
+ }
+ $D = $olddot if defined($olddot);
+}
+
+sub F_TransposeWords {
+ my $c = shift;
+ return F_Ding() unless $c;
+ # Find "this" word
+ F_BackwardWord(1);
+ my $p0 = $D;
+ F_ForwardWord(1);
+ my $p1 = $D;
+ return F_Ding() if $p1 == $p0;
+ my ($p2, $p3) = ($p0, $p1);
+ if ($c > 0) {
+ F_ForwardWord($c);
+ $p3 = $D;
+ F_BackwardWord(1);
+ $p2 = $D;
+ } else {
+ F_BackwardWord(1 - $c);
+ $p0 = $D;
+ F_ForwardWord(1);
+ $p1 = $D;
+ }
+ return F_Ding() if $p3 == $p2 or $p2 < $p1;
+ my $r = substr $line, $p2, $p3 - $p2;
+ substr($line, $p2, $p3 - $p2) = substr $line, $p0, $p1 - $p0;
+ substr($line, $p0, $p1 - $p0) = $r;
+ $D = $c > 0 ? $p3 : $p0 + $p3 - $p2; # End of "this" word after edit
+ return 1;
+## Exchange words: C-Left, C-right, C-right, C-left. If positions do
+## not overlap, we get two things to transpose. Repeat count?
+}
+
+##
+## Switch char at dot with char before it.
+## If at the end of the line, switch the previous two...
+## (NOTE: this could screw up multibyte characters.. should do correctly)
+sub F_TransposeChars
+{
+ if ($D == length($line) && $D >= 2) {
+ substr($line,$D-2,2) = substr($line,$D-1,1).substr($line,$D-2,1);
+ } elsif ($D >= 1) {
+ substr($line,$D-1,2) = substr($line,$D,1) .substr($line,$D-1,1);
+ } else {
+ &F_Ding;
+ }
+}
+
+sub F_PreviousHistory {
+ &get_line_from_history($rl_HistoryIndex - shift);
+}
+
+sub F_NextHistory {
+ &get_line_from_history($rl_HistoryIndex + shift);
+}
+
+
+
+sub F_BeginningOfHistory
+{
+ &get_line_from_history(0);
+}
+
+sub F_EndOfHistory
+{
+ &get_line_from_history(@rl_History);
+}
+
+sub F_ReverseSearchHistory
+{
+ &DoSearch($_[0] >= 0 ? 1 : 0);
+}
+
+sub F_ForwardSearchHistory
+{
+ &DoSearch($_[0] >= 0 ? 0 : 1);
+}
+
+sub F_HistorySearchBackward
+{
+ &DoSearchStart(($_[0] >= 0 ? 1 : 0),substr($line,0,$D));
+}
+
+sub F_HistorySearchForward
+{
+ &DoSearchStart(($_[0] >= 0 ? 0 : 1),substr($line,0,$D));
+}
+
+## returns a new $i or -1 if not found.
+sub search {
+ my ($i, $str) = @_;
+ return -1 if $i < 0 || $i > $#rl_History; ## for safety
+ while (1) {
+ return $i if rindex($rl_History[$i], $str) >= 0;
+ if ($reverse) {
+ return -1 if $i-- == 0;
+ } else {
+ return -1 if $i++ == $#rl_History;
+ }
+ }
+}
+
+sub DoSearch
+{
+ local $reverse = shift; # Used in search()
+ my $oldline = $line;
+ my $oldD = $D;
+
+ my $searchstr = ''; ## string we're searching for
+ my $I = -1; ## which history line
+
+ $si = 0;
+
+ while (1)
+ {
+ if ($I != -1) {
+ $line = $rl_History[$I];
+ $D += index($rl_History[$I], $searchstr);
+ }
+ &redisplay( '('.($reverse?'reverse-':'') ."i-search) `$searchstr': ");
+
+ $c = &getc_with_pending;
+ if (($KeyMap[ord($c)] || 0) eq 'F_ReverseSearchHistory') {
+ if ($reverse && $I != -1) {
+ if ($tmp = &search($I-1,$searchstr), $tmp >= 0) {
+ $I = $tmp;
+ } else {
+ &F_Ding;
+ }
+ }
+ $reverse = 1;
+ } elsif (($KeyMap[ord($c)] || 0) eq 'F_ForwardSearchHistory') {
+ if (!$reverse && $I != -1) {
+ if ($tmp = &search($I+1,$searchstr), $tmp >= 0) {
+ $I = $tmp;
+ } else {
+ &F_Ding;
+ }
+ }
+ $reverse = 0;
+ } elsif ($c eq "\007") { ## abort search... restore line and return
+ $line = $oldline;
+ $D = $oldD;
+ return;
+ } elsif (ord($c) < 32 || ord($c) > 126) {
+ push(@Pending, $c) if $c ne "\e";
+ if ($I < 0) {
+ ## just restore
+ $line = $oldline;
+ $D = $oldD;
+ } else {
+ #chose this line
+ $line = $rl_History[$I];
+ $D = index($rl_History[$I], $searchstr);
+ }
+ &redisplay();
+ last;
+ } else {
+ ## Add this character to the end of the search string and
+ ## see if that'll match anything.
+ $tmp = &search($I < 0 ? $rl_HistoryIndex-$reverse: $I, $searchstr.$c);
+ if ($tmp == -1) {
+ &F_Ding;
+ } else {
+ $searchstr .= $c;
+ $I = $tmp;
+ }
+ }
+ }
+}
+
+## returns a new $i or -1 if not found.
+sub searchStart {
+ my ($i, $reverse, $str) = @_;
+ $i += $reverse ? - 1: +1;
+ return -1 if $i < 0 || $i > $#rl_History; ## for safety
+ while (1) {
+ return $i if index($rl_History[$i], $str) == 0;
+ if ($reverse) {
+ return -1 if $i-- == 0;
+ } else {
+ return -1 if $i++ == $#rl_History;
+ }
+ }
+}
+
+sub DoSearchStart
+{
+ my ($reverse,$what) = @_;
+ my $i = searchStart($rl_HistoryIndex, $reverse, $what);
+ return if $i == -1;
+ $rl_HistoryIndex = $i;
+ ($D, $line) = (0, $rl_History[$rl_HistoryIndex]);
+ F_BeginningOfLine();
+ F_ForwardChar(length($what));
+
+}
+
+###########################################################################
+###########################################################################
+
+##
+## Kill from cursor to end of line.
+##
+sub F_KillLine
+{
+ my $count = shift;
+ return F_BackwardKillLine(-$count) if $count < 0;
+ kill_text($D, length($line), 1);
+}
+
+##
+## Delete from cursor to beginning of line.
+##
+sub F_BackwardKillLine
+{
+ my $count = shift;
+ return F_KillLine(-$count) if $count < 0;
+ return F_Ding if $D == 0;
+ kill_text(0, $D, 1);
+}
+
+##
+## TextInsert(count, string)
+##
+sub TextInsert {
+ my $count = shift;
+ my $text2add = shift(@_) x $count;
+ if ($InsertMode) {
+ substr($line,$D,0) .= $text2add;
+ } else {
+ substr($line,$D,length($text2add)) = $text2add;
+ }
+ $D += length($text2add);
+}
+
+sub F_Yank
+{
+ remove_selection();
+ &TextInsert($_[0], $KillBuffer);
+}
+
+sub F_YankPop {
+ 1;
+ ## not implemented yet
+}
+
+sub F_YankNthArg {
+ 1;
+ ## not implemented yet
+}
+
+##
+## Kill to the end of the current word. If not on a word, kill to
+## the end of the next word.
+##
+sub F_KillWord
+{
+ my $count = shift;
+ return &F_BackwardKillWord(-$count) if $count < 0;
+ my $oldD = $D;
+ &F_ForwardWord($count); ## moves forward $count words.
+ kill_text($oldD, $D, 1);
+}
+
+##
+## Kill backward to the start of the current word, or, if currently
+## not on a word (or just at the start of a word), to the start of the
+## previous word.
+##
+sub F_BackwardKillWord
+{
+ my $count = shift;
+ return F_KillWord(-$count) if $count < 0;
+ my $oldD = $D;
+ &F_BackwardWord($count); ## moves backward $count words.
+ kill_text($D, $oldD, 1);
+}
+
+###########################################################################
+###########################################################################
+
+
+##
+## Abort the current input.
+##
+sub F_Abort
+{
+ &F_Ding;
+}
+
+
+##
+## If the character that got us here is upper case,
+## do the lower-case equiv...
+##
+sub F_DoLowercaseVersion
+{
+ if ($_[1] >= ord('A') && $_[1] <= ord('Z')) {
+ &do_command(*KeyMap, $_[0], $_[1] - ord('A') + ord('a'));
+ } else {
+ &F_Ding;
+ }
+}
+
+##
+## do the equiv with control key...
+##
+sub F_DoControlVersion
+{
+ local *KeyMap = $var_EditingMode;
+ my $key = $_[1];
+
+ if ($key == ord('?')) {
+ $key = 0x7F;
+ } else {
+ $key &= ~(0x80 | 0x60);
+ }
+ &do_command(*KeyMap, $_[0], $key);
+}
+
+##
+## do the equiv with meta key...
+##
+sub F_DoMetaVersion
+{
+ local *KeyMap = $var_EditingMode;
+ unshift @Pending, chr $_[1];
+
+ &do_command(*KeyMap, $_[0], ord "\e");
+}
+
+##
+## If the character that got us here is Alt-Char,
+## do the Esc Char equiv...
+##
+sub F_DoEscVersion
+{
+ my ($ord, $t) = $_[1];
+ &F_Ding unless $KeyMap{'Esc'};
+ for $t (([ord 'w', '`1234567890-='],
+ [ord ',', 'zxcvbnm,./\\'],
+ [16, 'qwertyuiop[]'],
+ [ord(' ') - 2, 'asdfghjkl;\''])) {
+ next unless $ord >= $t->[0] and $ord < $t->[0] + length($t->[1]);
+ $ord = ord substr $t->[1], $ord - $t->[0], 1;
+ return &do_command($KeyMap{'Esc'}, $_[0], $ord);
+ }
+ &F_Ding;
+}
+
+##
+## Undo one level.
+##
+sub F_Undo
+{
+ pop(@undo); # unless $undo[-1]->[5]; ## get rid of the state we just put on, so we can go back one.
+ if (@undo) {
+ &getstate(pop(@undo));
+ } else {
+ &F_Ding;
+ }
+}
+
+##
+## Replace the current line to some "before" state.
+##
+sub F_RevertLine
+{
+ if ($rl_HistoryIndex >= $#rl_History+1) {
+ $line = $line_for_revert;
+ } else {
+ $line = $rl_History[$rl_HistoryIndex];
+ }
+ $D = length($line);
+}
+
+sub F_EmacsEditingMode
+{
+ $var_EditingMode = $var_EditingMode{'emacs'};
+ $Vi_mode = 0;
+}
+
+###########################################################################
+###########################################################################
+
+
+##
+## (Attempt to) interrupt the current program.
+##
+sub F_Interrupt
+{
+ local $\ = '';
+ print $term_OUT "\r\n";
+ &ResetTTY;
+ kill ("INT", 0);
+
+ ## We're back.... must not have died.
+ $force_redraw = 1;
+}
+
+##
+## Execute the next character input as a command in a meta keymap.
+##
+sub F_PrefixMeta
+{
+ my($count, $keymap) = ($_[0], "$KeyMap{'name'}_$_[1]");
+ ##print "F_PrefixMeta [$keymap]\n\r";
+ die "<internal error, $_[1]>" unless %$keymap;
+ do_command(*$keymap, $count, ord(&getc_with_pending));
+}
+
+sub F_UniversalArgument
+{
+ &F_DigitArgument;
+}
+
+##
+## For typing a numeric prefix to a command....
+##
+sub F_DigitArgument
+{
+ my $in = chr $_[1];
+ my ($NumericArg, $sawDigit) = (1, 0);
+ my ($increment, $ord);
+ ($NumericArg, $sawDigit) = ($_[0], $_[0] !~ /e0$/i)
+ if $doingNumArg; # XXX What if Esc-- 1 ?
+
+ do
+ {
+ $ord = ord $in;
+ if (defined($KeyMap[$ord]) && $KeyMap[$ord] eq 'F_UniversalArgument') {
+ $NumericArg *= 4;
+ } elsif ($ord == ord('-') && !$sawDigit) {
+ $NumericArg = -$NumericArg;
+ } elsif ($ord >= ord('0') && $ord <= ord('9')) {
+ $increment = ($ord - ord('0')) * ($NumericArg < 0 ? -1 : 1);
+ if ($sawDigit) {
+ $NumericArg = $NumericArg * 10 + $increment;
+ } else {
+ $NumericArg = $increment;
+ $sawDigit = 1;
+ }
+ } else {
+ local(*KeyMap) = $var_EditingMode;
+ &redisplay();
+ $doingNumArg = 1; # Allow NumArg inside NumArg
+ &do_command(*KeyMap, $NumericArg . ($sawDigit ? '': 'e0'), $ord);
+ return;
+ }
+ ## make sure it's not toooo big.
+ if ($NumericArg > $rl_max_numeric_arg) {
+ $NumericArg = $rl_max_numeric_arg;
+ } elsif ($NumericArg < -$rl_max_numeric_arg) {
+ $NumericArg = -$rl_max_numeric_arg;
+ }
+ &redisplay(sprintf("(arg %d) ", $NumericArg));
+ } while defined($in = &getc_with_pending);
+}
+
+sub F_OverwriteMode
+{
+ $InsertMode = 0;
+}
+
+sub F_InsertMode
+{
+ $InsertMode = 1;
+}
+
+sub F_ToggleInsertMode
+{
+ $InsertMode = !$InsertMode;
+}
+
+##
+## (Attempt to) suspend the program.
+##
+sub F_Suspend
+{
+ if ($inDOS && length($line)==0) { # EOF sent
+ $AcceptLine = $ReturnEOF = 1 if $lastcommand ne 'F_DeleteChar';
+ return;
+ }
+ local $\ = '';
+ print $term_OUT "\r\n";
+ &ResetTTY;
+ eval { kill ("TSTP", 0) };
+ ## We're back....
+ &SetTTY;
+ $force_redraw = 1;
+}
+
+##
+## Ring the bell.
+## Should do something with $var_PreferVisibleBell here, but what?
+##
+sub F_Ding {
+ local $\ = '';
+ print $term_OUT "\007";
+ return; # Undefined return value
+}
+
+##########################################################################
+#### command/file completion ############################################
+##########################################################################
+
+##
+## How Command Completion Works
+##
+## When asked to do a completion operation, readline isolates the word
+## to the immediate left of the cursor (i.e. what's just been typed).
+## This information is then passed to some function (which may be supplied
+## by the user of this package) which will return an array of possible
+## completions.
+##
+## If there is just one, that one is used. Otherwise, they are listed
+## in some way (depends upon $var_TcshCompleteMode).
+##
+## The default is to do filename completion. The function that performs
+## this task is readline'rl_filename_list.
+##
+## A minimal-trouble way to have command-completion is to call
+## readline'rl_basic_commands with an array of command names, such as
+## &readline'rl_basic_commands('quit', 'run', 'set', 'list')
+## Those command names will then be used for completion if the word being
+## completed begins the line. Otherwise, completion is disallowed.
+##
+## The way to have the most power is to provide a function to readline
+## which will accept information about a partial word that needs completed,
+## and will return the appropriate list of possibilities.
+## This is done by setting $readline'rl_completion_function to the name of
+## the function to run.
+##
+## That function will be called with three args ($text, $line, $start).
+## TEXT is the partial word that should be completed. LINE is the entire
+## input line as it stands, and START is the index of the TEXT in LINE
+## (i.e. zero if TEXT is at the beginning of LINE).
+##
+## A cool completion function will look at LINE and START and give context-
+## sensitive completion lists. Consider something that will do completion
+## for two commands
+## cat FILENAME
+## finger USERNAME
+## status [this|that|other]
+##
+## It (untested) might look like:
+##
+## $readline'rl_completion_function = "main'complete";
+## sub complete { local($text, $_, $start) = @_;
+## ## return commands which may match if at the beginning....
+## return grep(/^$text/, 'cat', 'finger') if $start == 0;
+## return &rl_filename_list($text) if /^cat\b/;
+## return &my_namelist($text) if /^finger\b/;
+## return grep(/^text/, 'this', 'that','other') if /^status\b/;
+## ();
+## }
+## Of course, a real completion function would be more robust, but you
+## get the idea (I hope).
+##
+
+##
+## List possible completions
+##
+sub F_PossibleCompletions
+{
+ &complete_internal('?');
+}
+
+##
+## List possible completions
+##
+sub F_InsertPossibleCompletions
+{
+ &complete_internal('*');
+}
+
+##
+## Do a completion operation.
+## If the last thing we did was a completion operation, we'll
+## now list the options available (under normal emacs mode).
+##
+## Under TcshCompleteMode, each contiguous subsequent completion operation
+## lists another of the possible options.
+##
+## Returns true if a completion was done, false otherwise, so vi completion
+## routines can test it.
+##
+sub F_Complete
+{
+ if ($lastcommand eq 'F_Complete') {
+ if ($var_TcshCompleteMode && @tcsh_complete_selections > 0) {
+ substr($line, $tcsh_complete_start, $tcsh_complete_len)
+ = $tcsh_complete_selections[0];
+ $D -= $tcsh_complete_len;
+ $tcsh_complete_len = length($tcsh_complete_selections[0]);
+ $D += $tcsh_complete_len;
+ push(@tcsh_complete_selections, shift(@tcsh_complete_selections));
+ } else {
+ &complete_internal('?') or return;
+ }
+ } else {
+ @tcsh_complete_selections = ();
+ &complete_internal("\t") or return;
+ }
+
+ 1;
+}
+
+##
+## The meat of command completion. Patterned closely after GNU's.
+##
+## The supposedly partial word at the cursor is "completed" as per the
+## single argument:
+## "\t" complete as much of the word as is unambiguous
+## "?" list possibilities.
+## "*" replace word with all possibilities. (who would use this?)
+##
+## A few notable variables used:
+## $rl_completer_word_break_characters
+## -- characters in this string break a word.
+## $rl_special_prefixes
+## -- but if in this string as well, remain part of that word.
+##
+## Returns true if a completion was done, false otherwise, so vi completion
+## routines can test it.
+##
+sub complete_internal
+{
+ my $what_to_do = shift;
+ my ($point, $end) = ($D, $D);
+
+ # In vi mode, complete if the cursor is at the *end* of a word, not
+ # after it.
+ ($point++, $end++) if $Vi_mode;
+
+ if ($point)
+ {
+ ## Not at the beginning of the line; Isolate the word to be completed.
+ 1 while (--$point && (-1 == index($rl_completer_word_break_characters,
+ substr($line, $point, 1))));
+
+ # Either at beginning of line or at a word break.
+ # If at a word break (that we don't want to save), skip it.
+ $point++ if (
+ (index($rl_completer_word_break_characters,
+ substr($line, $point, 1)) != -1) &&
+ (index($rl_special_prefixes, substr($line, $point, 1)) == -1)
+ );
+ }
+
+ my $text = substr($line, $point, $end - $point);
+ $rl_completer_terminator_character = ' ';
+ @matches = &completion_matches($rl_completion_function,$text,$line,$point);
+
+ if (@matches == 0) {
+ return &F_Ding;
+ } elsif ($what_to_do eq "\t") {
+ my $replacement = shift(@matches);
+ $replacement .= $rl_completer_terminator_character if @matches == 1;
+ &F_Ding if @matches != 1;
+ if ($var_TcshCompleteMode) {
+ @tcsh_complete_selections = (@matches, $text);
+ $tcsh_complete_start = $point;
+ $tcsh_complete_len = length($replacement);
+ }
+ if ($replacement ne '') {
+ substr($line, $point, $end-$point) = $replacement;
+ $D = $D - ($end - $point) + length($replacement);
+ }
+ } elsif ($what_to_do eq '?') {
+ shift(@matches); ## remove prepended common prefix
+ local $\ = '';
+ print $term_OUT "\n\r";
+ # print "@matches\n\r";
+ &pretty_print_list (@matches);
+ $force_redraw = 1;
+ } elsif ($what_to_do eq '*') {
+ shift(@matches); ## remove common prefix.
+ local $" = $rl_completer_terminator_character;
+ my $replacement = "@matches$rl_completer_terminator_character";
+ substr($line, $point, $end-$point) = $replacement; ## insert all.
+ $D = $D - ($end - $point) + length($replacement);
+ } else {
+ warn "\r\n[Internal error]";
+ return &F_Ding;
+ }
+
+ 1;
+}
+
+##
+## completion_matches(func, text, line, start)
+##
+## FUNC is a function to call as FUNC(TEXT, LINE, START)
+## where TEXT is the item to be completed
+## LINE is the whole command line, and
+## START is the starting index of TEXT in LINE.
+## The FUNC should return a list of items that might match.
+##
+## completion_matches will return that list, with the longest common
+## prefix prepended as the first item of the list. Therefor, the list
+## will either be of zero length (meaning no matches) or of 2 or more.....
+##
+
+## Works with &rl_basic_commands. Return items from @rl_basic_commands
+## that start with the pattern in $text.
+sub use_basic_commands {
+ my ($text, $line, $start) = @_;
+ return () if $start != 0;
+ grep(/^$text/, @rl_basic_commands);
+}
+
+sub completion_matches
+{
+ my ($func, $text, $line, $start) = @_;
+
+ ## get the raw list
+ my @matches;
+
+ #print qq/\r\neval("\@matches = &$func(\$text, \$line, \$start)\n\r/;#DEBUG
+ #eval("\@matches = &$func(\$text, \$line, \$start);1") || warn "$@ ";
+ @matches = &$func($text, $line, $start);
+
+ ## if anything returned , find the common prefix among them
+ if (@matches) {
+ my $prefix = $matches[0];
+ my $len = length($prefix);
+ for ($i = 1; $i < @matches; $i++) {
+ next if substr($matches[$i], 0, $len) eq $prefix;
+ $prefix = substr($prefix, 0, --$len);
+ last if $len == 0;
+ $i--; ## retry this one to see if the shorter one matches.
+ }
+ unshift(@matches, $prefix); ## make common prefix the first thing.
+ }
+ @matches;
+}
+
+##
+## For use in passing to completion_matches(), returns a list of
+## filenames that begin with the given pattern. The user of this package
+## can set $rl_completion_function to 'rl_filename_list' to restore the
+## default of filename matching if they'd changed it earlier, either
+## directly or via &rl_basic_commands.
+##
+sub rl_filename_list
+{
+ my $pattern = $_[0];
+ my @files = (<$pattern*>);
+ if ($var_CompleteAddsuffix) {
+ foreach (@files) {
+ if (-l $_) {
+ $_ .= '@';
+ } elsif (-d _) {
+ $_ .= '/';
+ } elsif (-x _) {
+ $_ .= '*';
+ } elsif (-S _ || -p _) {
+ $_ .= '=';
+ }
+ }
+ }
+ return @files;
+}
+
+##
+## For use by the user of the package. Called with a list of possible
+## commands, will allow command completion on those commands, but only
+## for the first word on a line.
+## For example: &rl_basic_commands('set', 'quit', 'type', 'run');
+##
+## This is for people that want quick and simple command completion.
+## A more thoughtful implementation would set $rl_completion_function
+## to a routine that would look at the context of the word being completed
+## and return the appropriate possibilities.
+##
+sub rl_basic_commands
+{
+ @rl_basic_commands = @_;
+ $rl_completion_function = 'use_basic_commands';
+}
+
+##
+## Print an array in columns like ls -C. Originally based on stuff
+## (lsC2.pl) by utashiro@sran230.sra.co.jp (Kazumasa Utashiro).
+##
+sub pretty_print_list
+{
+ my @list = @_;
+ return unless @list;
+ my ($lines, $columns, $mark, $index);
+
+ ## find width of widest entry
+ my $maxwidth = 0;
+ grep(length > $maxwidth && ($maxwidth = length), @list);
+ $maxwidth++;
+
+ $columns = $maxwidth >= $rl_screen_width
+ ? 1 : int($rl_screen_width / $maxwidth);
+
+ ## if there's enough margin to interspurse among the columns, do so.
+ $maxwidth += int(($rl_screen_width % $maxwidth) / $columns);
+
+ $lines = int((@list + $columns - 1) / $columns);
+ $columns-- while ((($lines * $columns) - @list + 1) > $lines);
+
+ $mark = $#list - $lines;
+ local $\ = '';
+ for ($l = 0; $l < $lines; $l++) {
+ for ($index = $l; $index <= $mark; $index += $lines) {
+ printf("%-$ {maxwidth}s", $list[$index]);
+ }
+ print $term_OUT $list[$index] if $index <= $#list;
+ print $term_OUT "\n\r";
+ }
+}
+
+##----------------- Vi Routines --------------------------------
+
+sub F_ViAcceptLine
+{
+ &F_AcceptLine();
+ &F_ViInput();
+}
+
+# Repeat the most recent one of these vi commands:
+#
+# a A c C d D i I p P r R s S x X ~
+#
+sub F_ViRepeatLastCommand {
+ my($count) = @_;
+ return &F_Ding if !$Last_vi_command;
+
+ my @lastcmd = @$Last_vi_command;
+
+ # Multiply @lastcmd's numeric arg by $count.
+ unless ($count == 1) {
+
+ my $n = '';
+ while (@lastcmd and $lastcmd[0] =~ /^\d$/) {
+ $n *= 10;
+ $n += shift(@lastcmd);
+ }
+ $count *= $n unless $n eq '';
+ unshift(@lastcmd, split(//, $count));
+ }
+
+ push(@Pending, @lastcmd);
+}
+
+sub F_ViMoveCursor
+{
+ my($count, $ord) = @_;
+
+ my $new_cursor = &get_position($count, $ord, undef, $Vi_move_patterns);
+ return &F_Ding if !defined $new_cursor;
+
+ $D = $new_cursor;
+}
+
+sub F_ViFindMatchingParens {
+
+ # Move to the first parens at or after $D
+ my $old_d = $D;
+ &forward_scan(1, q/[^[\](){}]*/);
+ my $parens = substr($line, $D, 1);
+
+ my $mate_direction = {
+ '(' => [ ')', 1 ],
+ '[' => [ ']', 1 ],
+ '{' => [ '}', 1 ],
+ ')' => [ '(', -1 ],
+ ']' => [ '[', -1 ],
+ '}' => [ '{', -1 ],
+
+ }->{$parens};
+
+ return &F_Ding() unless $mate_direction;
+
+ my($mate, $direction) = @$mate_direction;
+
+ my $lvl = 1;
+ while ($lvl) {
+ last if !$D && ($direction < 0);
+ &F_ForwardChar($direction);
+ last if &at_end_of_line;
+ my $c = substr($line, $D, 1);
+ if ($c eq $parens) {
+ $lvl++;
+ }
+ elsif ($c eq $mate) {
+ $lvl--;
+ }
+ }
+
+ if ($lvl) {
+ # We didn't find a match
+ $D = $old_d;
+ return &F_Ding();
+ }
+}
+
+sub F_ViForwardFindChar {
+ &do_findchar(1, 1, @_);
+}
+
+sub F_ViBackwardFindChar {
+ &do_findchar(-1, 0, @_);
+}
+
+sub F_ViForwardToChar {
+ &do_findchar(1, 0, @_);
+}
+
+sub F_ViBackwardToChar {
+ &do_findchar(-1, 1, @_);
+}
+
+sub F_ViMoveCursorTo
+{
+ &do_findchar(1, -1, @_);
+}
+
+sub F_ViMoveCursorFind
+{
+ &do_findchar(1, 0, @_);
+}
+
+
+sub F_ViRepeatFindChar {
+ my($n) = @_;
+ return &F_Ding if !defined $Last_findchar;
+ &findchar(@$Last_findchar, $n);
+}
+
+sub F_ViInverseRepeatFindChar {
+ my($n) = @_;
+ return &F_Ding if !defined $Last_findchar;
+ my($c, $direction, $offset) = @$Last_findchar;
+ &findchar($c, -$direction, $offset, $n);
+}
+
+sub do_findchar {
+ my($direction, $offset, $n) = @_;
+ my $c = &getc_with_pending;
+ $c = &getc_with_pending if $c eq "\cV";
+ return &F_ViCommandMode if $c eq "\e";
+ $Last_findchar = [$c, $direction, $offset];
+ &findchar($c, $direction, $offset, $n);
+}
+
+sub findchar {
+ my($c, $direction, $offset, $n) = @_;
+ my $old_d = $D;
+ while ($n) {
+ last if !$D && ($direction < 0);
+ &F_ForwardChar($direction);
+ last if &at_end_of_line;
+ my $char = substr($line, $D, 1);
+ $n-- if substr($line, $D, 1) eq $c;
+ }
+ if ($n) {
+ # Not found
+ $D = $old_d;
+ return &F_Ding;
+ }
+ &F_ForwardChar($offset);
+}
+
+sub F_ViMoveToColumn {
+ my($n) = @_;
+ $D = 0;
+ my $col = 1;
+ while (!&at_end_of_line and $col < $n) {
+ my $c = substr($line, $D, 1);
+ if ($c eq "\t") {
+ $col += 7;
+ $col -= ($col % 8) - 1;
+ }
+ else {
+ $col++;
+ }
+ $D += &CharSize($D);
+ }
+}
+
+sub start_dot_buf {
+ my($count, $ord) = @_;
+ $Dot_buf = [pack('c', $ord)];
+ unshift(@$Dot_buf, split(//, $count)) if $count > 1;
+ $Dot_state = savestate();
+}
+
+sub end_dot_buf {
+ # We've recognized an editing command
+
+ # Save the command keystrokes for use by '.'
+ $Last_vi_command = $Dot_buf;
+ undef $Dot_buf;
+
+ # Save the pre-command state for use by 'u' and 'U';
+ $Vi_undo_state = $Dot_state;
+ $Vi_undo_all_state = $Dot_state if !$Vi_undo_all_state;
+
+ # Make sure the current line is treated as new line for history purposes.
+ $rl_HistoryIndex = $#rl_History + 1;
+}
+
+sub save_dot_buf {
+ &start_dot_buf(@_);
+ &end_dot_buf;
+}
+
+sub F_ViUndo {
+ return &F_Ding unless defined $Vi_undo_state;
+ my $state = savestate();
+ &getstate($Vi_undo_state);
+ $Vi_undo_state = $state;
+}
+
+sub F_ViUndoAll {
+ $Vi_undo_state = $Vi_undo_all_state;
+ &F_ViUndo;
+}
+
+sub F_ViChange
+{
+ my($count, $ord) = @_;
+ &start_dot_buf(@_);
+ &do_delete($count, $ord, $Vi_change_patterns) || return();
+ &vi_input_mode;
+}
+
+sub F_ViDelete
+{
+ my($count, $ord) = @_;
+ &start_dot_buf(@_);
+ &do_delete($count, $ord, $Vi_delete_patterns);
+ &end_dot_buf;
+}
+
+sub do_delete {
+
+ my($count, $ord, $poshash) = @_;
+
+ my $other_end = &get_position($count, undef, $ord, $poshash);
+ return &F_Ding if !defined $other_end;
+
+ if ($other_end < 0) {
+ # dd - delete entire line
+ &kill_text(0, length($line), 1);
+ }
+ else {
+ &kill_text($D, $other_end, 1);
+ }
+
+ 1; # True return value
+}
+
+sub F_ViDeleteChar {
+ my($count) = @_;
+ &save_dot_buf(@_);
+ my $other_end = $D + $count;
+ $other_end = length($line) if $other_end > length($line);
+ &kill_text($D, $other_end, 1);
+}
+
+sub F_ViBackwardDeleteChar {
+ my($count) = @_;
+ &save_dot_buf(@_);
+ my $other_end = $D - $count;
+ $other_end = 0 if $other_end < 0;
+ &kill_text($other_end, $D, 1);
+ $D = $other_end;
+}
+
+##
+## Prepend line with '#', add to history, and clear the input buffer
+## (this feature was borrowed from ksh).
+##
+sub F_SaveLine
+{
+ local $\ = '';
+ $line = '#'.$line;
+ &redisplay();
+ print $term_OUT "\r\n";
+ &add_line_to_history;
+ $line_for_revert = '';
+ &get_line_from_history(scalar @rl_History);
+ &F_ViInput() if $Vi_mode;
+}
+
+#
+# Come here if we see a non-positioning keystroke when a positioning
+# keystroke is expected.
+#
+sub F_ViNonPosition {
+ # Not a positioning command - undefine the cursor to indicate the error
+ # to get_position().
+ undef $D;
+}
+
+#
+# Come here if we see <esc><char>, but *not* an arrow key or other
+# mapped sequence, when a positioning keystroke is expected.
+#
+sub F_ViPositionEsc {
+ my($count, $ord) = @_;
+
+ # We got <esc><char> in vipos mode. Put <char> back onto the
+ # input stream and terminate the positioning command.
+ unshift(@Pending, pack('c', $ord));
+ &F_ViNonPosition;
+}
+
+# Interpret vi positioning commands
+sub get_position {
+ my ($count, $ord, $fullline_ord, $poshash) = @_;
+
+ # Manipulate a copy of the cursor, not the real thing
+ local $D = $D;
+
+ # $ord (first character of positioning command) is an optional argument.
+ $ord = ord(&getc_with_pending) if !defined $ord;
+
+ # Detect double character (for full-line operation, e.g. dd)
+ return -1 if defined $fullline_ord and $ord == $fullline_ord;
+
+ my $re = $poshash->{$ord};
+
+ if ($re) {
+ my $c = pack('c', $ord);
+ if (lc($c) eq 'b') {
+ &backward_scan($count, $re);
+ }
+ else {
+ &forward_scan($count, $re);
+ }
+ }
+ else {
+ # Move the local copy of the cursor
+ &do_command($var_EditingMode{'vipos'}, $count, $ord);
+ }
+
+ # Return the new cursor (undef if illegal command)
+ $D;
+}
+
+##
+## Go to first non-space character of line.
+##
+sub F_ViFirstWord
+{
+ $D = 0;
+ &forward_scan(1, q{\s+});
+}
+
+sub forward_scan {
+ my($count, $re) = @_;
+ while ($count--) {
+ last unless substr($line, $D) =~ m{^($re)};
+ $D += length($1);
+ }
+}
+
+sub backward_scan {
+ my($count, $re) = @_;
+ while ($count--) {
+ last unless substr($line, 0, $D) =~ m{($re)$};
+ $D -= length($1);
+ }
+}
+
+# Note: like the emacs case transforms, this doesn't work for
+# two-byte characters.
+sub F_ViToggleCase {
+ my($count) = @_;
+ &save_dot_buf(@_);
+ while ($count-- > 0) {
+ substr($line, $D, 1) =~ tr/A-Za-z/a-zA-Z/;
+ &F_ForwardChar(1);
+ if (&at_end_of_line) {
+ &F_BackwardChar(1);
+ last;
+ }
+ }
+}
+
+# Go to the numbered history line, as listed by the 'H' command, i.e. the
+# current $line is line 1, the youngest line in @rl_History is 2, etc.
+sub F_ViHistoryLine {
+ my($n) = @_;
+ &get_line_from_history(@rl_History - $n + 1);
+}
+
+sub get_line_from_history {
+ my($n) = @_;
+ return &F_Ding if $n < 0 or $n > @rl_History;
+ return if $n == $rl_HistoryIndex;
+
+ # If we're moving from the currently-edited line, save it for later.
+ $line_for_revert = $line if $rl_HistoryIndex == @rl_History;
+
+ # Get line from history buffer (or from saved edit line).
+ $line = ($n == @rl_History) ? $line_for_revert : $rl_History[$n];
+ $D = $Vi_mode ? 0 : length $line;
+
+ # Subsequent 'U' will bring us back to this point.
+ $Vi_undo_all_state = savestate() if $Vi_mode;
+
+ $rl_HistoryIndex = $n;
+}
+
+sub F_PrintHistory {
+ my($count) = @_;
+
+ $count = 20 if $count == 1; # Default - assume 'H', not '1H'
+ my $end = $rl_HistoryIndex + $count/2;
+ $end = @rl_History if $end > @rl_History;
+ my $start = $end - $count + 1;
+ $start = 0 if $start < 0;
+
+ my $lmh = length $rl_MaxHistorySize;
+
+ my $lspace = ' ' x ($lmh+3);
+ my $hdr = "$lspace-----";
+ $hdr .= " (Use ESC <num> UP to retrieve command <num>) -----" unless $Vi_mode;
+ $hdr .= " (Use '<num>G' to retrieve command <num>) -----" if $Vi_mode;
+
+ local ($\, $,) = ('','');
+ print "\n$hdr\n";
+ print $lspace, ". . .\n" if $start > 0;
+ my $i;
+ my $shift = ($Vi_mode != 0);
+ for $i ($start .. $end) {
+ print + ($i == $rl_HistoryIndex) ? '>' : ' ',
+
+ sprintf("%${lmh}d: ", @rl_History - $i + $shift),
+
+ ($i < @rl_History) ? $rl_History[$i] :
+ ($i == $rl_HistoryIndex) ? $line :
+ $line_for_revert,
+
+ "\n";
+ }
+ print $lspace, ". . .\n" if $end < @rl_History;
+ print "$hdr\n";
+
+ &force_redisplay();
+
+ &F_ViInput() if $line eq '' && $Vi_mode;
+}
+
+# Redisplay the line, without attempting any optimization
+sub force_redisplay {
+ local $force_redraw = 1;
+ &redisplay(@_);
+}
+
+# Search history for matching string. As with vi in nomagic mode, the
+# ^, $, \<, and \> positional assertions, the \* quantifier, the \.
+# character class, and the \[ character class delimiter all have special
+# meaning here.
+sub F_ViSearch {
+ my($n, $ord) = @_;
+
+ my $c = pack('c', $ord);
+
+ my $str = &get_vi_search_str($c);
+ if (!defined $str) {
+ # Search aborted by deleting the '/' at the beginning of the line
+ return &F_ViInput() if $line eq '';
+ return();
+ }
+
+ # Null string repeats last search
+ if ($str eq '') {
+ return &F_Ding unless defined $Vi_search_re;
+ }
+ else {
+ # Convert to a regular expression. Interpret $str Like vi in nomagic
+ # mode: '^', '$', '\<', and '\>' positional assertions, '\*'
+ # quantifier, '\.' and '\[]' character classes.
+
+ my @chars = ($str =~ m{(\\?.)}g);
+ my(@re, @tail);
+ unshift(@re, shift(@chars)) if @chars and $chars[0] eq '^';
+ push (@tail, pop(@chars)) if @chars and $chars[-1] eq '$';
+ my $in_chclass;
+ my %chmap = (
+ '\<' => '\b(?=\w)',
+ '\>' => '(?<=\w)\b',
+ '\*' => '*',
+ '\[' => '[',
+ '\.' => '.',
+ );
+ my $ch;
+ foreach $ch (@chars) {
+ if ($in_chclass) {
+ # Any backslashes in vi char classes are literal
+ push(@re, "\\") if length($ch) > 1;
+ push(@re, $ch);
+ $in_chclass = 0 if $ch =~ /\]$/;
+ }
+ else {
+ push(@re, (length $ch == 2) ? ($chmap{$ch} || $ch) :
+ ($ch =~ /^\w$/) ? $ch :
+ ("\\", $ch));
+ $in_chclass = 1 if $ch eq '\[';
+ }
+ }
+ my $re = join('', @re, @tail);
+ $Vi_search_re = q{$re};
+ }
+
+ local $reverse = $Vi_search_reverse = ($c eq '/') ? 1 : 0;
+ &do_vi_search();
+}
+
+sub F_ViRepeatSearch {
+ my($n, $ord) = @_;
+ my $c = pack('c', $ord);
+ return &F_Ding unless defined $Vi_search_re;
+ local $reverse = $Vi_search_reverse;
+ $reverse ^= 1 if $c eq 'N';
+ &do_vi_search();
+}
+
+## returns a new $i or -1 if not found.
+sub vi_search {
+ my ($i) = @_;
+ return -1 if $i < 0 || $i > $#rl_History; ## for safety
+ while (1) {
+ return $i if $rl_History[$i] =~ /$Vi_search_re/;
+ if ($reverse) {
+ return -1 if $i-- == 0;
+ } else {
+ return -1 if $i++ == $#rl_History;
+ }
+ }
+}
+
+sub do_vi_search {
+ my $incr = $reverse ? -1 : 1;
+
+ my $i = &vi_search($rl_HistoryIndex + $incr);
+ return &F_Ding if $i < 0; # Not found.
+
+ $rl_HistoryIndex = $i;
+ ($D, $line) = (0, $rl_History[$rl_HistoryIndex]);
+}
+
+# Using local $line, $D, and $prompt, get and return the string to search for.
+sub get_vi_search_str {
+ my($c) = @_;
+
+ local $prompt = $prompt . $c;
+ local ($line, $D) = ('', 0);
+ &redisplay();
+
+ # Gather a search string in our local $line.
+ while ($lastcommand ne 'F_ViEndSearch') {
+ &do_command($var_EditingMode{'visearch'}, 1, ord(&getc_with_pending));
+ &redisplay();
+
+ # We've backspaced past beginning of line
+ return undef if !defined $line;
+ }
+ $line;
+}
+
+sub F_ViEndSearch {}
+
+sub F_ViSearchBackwardDeleteChar {
+ if ($line eq '') {
+ # Backspaced past beginning of line - terminate search mode
+ undef $line;
+ }
+ else {
+ &F_BackwardDeleteChar(@_);
+ }
+}
+
+##
+## Kill entire line and enter input mode
+##
+sub F_ViChangeEntireLine
+{
+ &start_dot_buf(@_);
+ kill_text(0, length($line), 1);
+ &vi_input_mode;
+}
+
+##
+## Kill characters and enter input mode
+##
+sub F_ViChangeChar
+{
+ &start_dot_buf(@_);
+ &F_DeleteChar(@_);
+ &vi_input_mode;
+}
+
+sub F_ViReplaceChar
+{
+ &start_dot_buf(@_);
+ my $c = &getc_with_pending;
+ $c = &getc_with_pending if $c eq "\cV"; # ctrl-V
+ return &F_ViCommandMode if $c eq "\e";
+ &end_dot_buf;
+
+ local $InsertMode = 0;
+ local $D = $D; # Preserve cursor position
+ &F_SelfInsert(1, ord($c));
+}
+
+##
+## Kill from cursor to end of line and enter input mode
+##
+sub F_ViChangeLine
+{
+ &start_dot_buf(@_);
+ &F_KillLine(@_);
+ &vi_input_mode;
+}
+
+sub F_ViDeleteLine
+{
+ &save_dot_buf(@_);
+ &F_KillLine(@_);
+}
+
+sub F_ViPut
+{
+ my($count) = @_;
+ &save_dot_buf(@_);
+ my $text2add = $KillBuffer x $count;
+ my $ll = length($line);
+ $D++;
+ $D = $ll if $D > $ll;
+ substr($line, $D, 0) = $KillBuffer x $count;
+ $D += length($text2add) - 1;
+}
+
+sub F_ViPutBefore
+{
+ &save_dot_buf(@_);
+ &TextInsert($_[0], $KillBuffer);
+}
+
+sub F_ViYank
+{
+ my($count, $ord) = @_;
+ my $pos = &get_position($count, undef, $ord, $Vi_yank_patterns);
+ &F_Ding if !defined $pos;
+ if ($pos < 0) {
+ # yy
+ &F_ViYankLine;
+ }
+ else {
+ my($from, $to) = ($pos > $D) ? ($D, $pos) : ($pos, $D);
+ $KillBuffer = substr($line, $from, $to-$from);
+ }
+}
+
+sub F_ViYankLine
+{
+ $KillBuffer = $line;
+}
+
+sub F_ViInput
+{
+ @_ = (1, ord('i')) if !@_;
+ &start_dot_buf(@_);
+ &vi_input_mode;
+}
+
+sub F_ViBeginInput
+{
+ &start_dot_buf(@_);
+ &F_BeginningOfLine;
+ &vi_input_mode;
+}
+
+sub F_ViReplaceMode
+{
+ &start_dot_buf(@_);
+ $InsertMode = 0;
+ $var_EditingMode = $var_EditingMode{'vi'};
+ $Vi_mode = 1;
+}
+
+sub vi_input_mode
+{
+ $InsertMode = 1;
+ $var_EditingMode = $var_EditingMode{'vi'};
+ $Vi_mode = 1;
+}
+
+# The previous keystroke was an escape, but the sequence was not recognized
+# as a mapped sequence (like an arrow key). Enter vi comand mode and
+# process this keystroke.
+sub F_ViAfterEsc {
+ my($n, $ord) = @_;
+ &F_ViCommandMode;
+ &do_command($var_EditingMode, 1, $ord);
+}
+
+sub F_ViAppend
+{
+ &start_dot_buf(@_);
+ &vi_input_mode;
+ &F_ForwardChar;
+}
+
+sub F_ViAppendLine
+{
+ &start_dot_buf(@_);
+ &vi_input_mode;
+ &F_EndOfLine;
+}
+
+sub F_ViCommandMode
+{
+ $var_EditingMode = $var_EditingMode{'vicmd'};
+ $Vi_mode = 1;
+}
+
+sub F_ViAcceptInsert {
+ local $in_accept_line = 1;
+ &F_ViEndInsert;
+ &F_ViAcceptLine;
+}
+
+sub F_ViEndInsert
+{
+ if ($Dot_buf) {
+ if ($line eq '' and $Dot_buf->[0] eq 'i') {
+ # We inserted nothing into an empty $line - assume it was a
+ # &F_ViInput() call with no arguments, and don't save command.
+ undef $Dot_buf;
+ }
+ else {
+ # Regardless of which keystroke actually terminated this insert
+ # command, replace it with an <esc> in the dot buffer.
+ @{$Dot_buf}[-1] = "\e";
+ &end_dot_buf;
+ }
+ }
+ &F_ViCommandMode;
+ # Move cursor back to the last inserted character, but not when
+ # we're about to accept a line of input
+ &F_BackwardChar(1) unless $in_accept_line;
+}
+
+sub F_ViDigit {
+ my($count, $ord) = @_;
+
+ my $n = 0;
+ my $ord0 = ord('0');
+ while (1) {
+
+ $n *= 10;
+ $n += $ord - $ord0;
+
+ my $c = &getc_with_pending;
+ return unless defined $c;
+ $ord = ord($c);
+ last unless $c =~ /^\d$/;
+ }
+
+ $n *= $count; # So 2d3w deletes six words
+ $n = $rl_max_numeric_arg if $n > $rl_max_numeric_arg;
+
+ &do_command($var_EditingMode, $n, $ord);
+}
+
+sub F_ViComplete {
+ my($n, $ord) = @_;
+
+ $Dot_state = savestate(); # Completion is undo-able
+ undef $Dot_buf; # but not redo-able
+
+ my $ch;
+ while (1) {
+
+ &F_Complete() or return;
+
+ # Vi likes the cursor one character right of where emacs like it.
+ &F_ForwardChar(1);
+ &force_redisplay();
+
+ # Look ahead to the next input keystroke.
+ $ch = &getc_with_pending();
+ last unless ord($ch) == $ord; # Not a '\' - quit.
+
+ # Another '\' was typed - put the cursor back where &F_Complete left
+ # it, and try again.
+ &F_BackwardChar(1);
+ $lastcommand = 'F_Complete'; # Play along with &F_Complete's kludge
+ }
+ unshift(@Pending, $ch); # Unget the lookahead keystroke
+
+ # Successful completion - enter input mode with cursor beyond end of word.
+ &vi_input_mode;
+}
+
+sub F_ViInsertPossibleCompletions {
+ $Dot_state = savestate(); # Completion is undo-able
+ undef $Dot_buf; # but not redo-able
+
+ &complete_internal('*') or return;
+
+ # Successful completion - enter input mode with cursor beyond end of word.
+ &F_ForwardChar(1);
+ &vi_input_mode;
+}
+
+sub F_ViPossibleCompletions {
+
+ # List possible completions
+ &complete_internal('?');
+
+ # Enter input mode with cursor where we left off.
+ &F_ForwardChar(1);
+ &vi_input_mode;
+}
+
+sub F_SetMark {
+ $rl_mark = $D;
+ pos $line = $rl_mark;
+ $line_rl_mark = $rl_HistoryIndex;
+ $force_redraw = 1;
+}
+
+sub F_ExchangePointAndMark {
+ return F_Ding unless $line_rl_mark == $rl_HistoryIndex;
+ ($rl_mark, $D) = ($D, $rl_mark);
+ pos $line = $rl_mark;
+ $D = length $line if $D > length $line;
+ $force_redraw = 1;
+}
+
+sub F_KillRegion {
+ return F_Ding unless $line_rl_mark == $rl_HistoryIndex;
+ $rl_mark = length $line if $rl_mark > length $line;
+ kill_text($rl_mark, $D, 1);
+ $line_rl_mark = -1; # Disable mark
+}
+
+sub F_CopyRegionAsKill {
+ return F_Ding unless $line_rl_mark == $rl_HistoryIndex;
+ $rl_mark = length $line if $rl_mark > length $line;
+ my ($s, $e) = ($rl_mark, $D);
+ ($s, $e) = ($e, $s) if $s > $e;
+ $ThisCommandKilledText = 1 + $s;
+ $KillBuffer = '' if !$LastCommandKilledText;
+ $KillBuffer .= substr($line, $s, $e - $s);
+}
+
+sub clipboard_set {
+ my $in = shift;
+ if ($^O eq 'os2') {
+ eval {
+ require OS2::Process;
+ OS2::Process::ClipbrdText_set($in); # Do not disable \r\n-conversion
+ 1
+ } and return;
+ } elsif ($^O eq 'MSWin32') {
+ eval {
+ require Win32::Clipboard;
+ Win32::Clipboard::Set($in);
+ 1
+ } and return;
+ }
+ my $mess;
+ if ($ENV{RL_CLCOPY_CMD}) {
+ $mess = "Writing to pipe `$ENV{RL_CLCOPY_CMD}'";
+ open COPY, "| $ENV{RL_CLCOPY_CMD}" or warn("$mess: $!"), return;
+ } elsif (defined $ENV{HOME}) {
+ $mess = "Writing to file `$ENV{HOME}/.rl_cutandpaste'";
+ open COPY, "> $ENV{HOME}/.rl_cutandpaste" or warn("$mess: $!"), return;
+ } else {
+ return;
+ }
+ print COPY $in;
+ close COPY or warn("$mess: closing $!");
+}
+
+sub F_CopyRegionAsKillClipboard {
+ return clipboard_set($line) unless $line_rl_mark == $rl_HistoryIndex;
+ &F_CopyRegionAsKill;
+ clipboard_set($KillBuffer);
+}
+
+sub F_KillRegionClipboard {
+ &F_KillRegion;
+ clipboard_set($KillBuffer);
+}
+
+sub F_YankClipboard
+{
+ remove_selection();
+ my $in;
+ if ($^O eq 'os2') {
+ eval {
+ require OS2::Process;
+ $in = OS2::Process::ClipbrdText();
+ $in =~ s/\r\n/\n/g; # With old versions, or what?
+ }
+ } elsif ($^O eq 'MSWin32') {
+ eval {
+ require Win32::Clipboard;
+ $in = Win32::Clipboard::GetText();
+ $in =~ s/\r\n/\n/g; # is this needed?
+ }
+ } else {
+ my $mess;
+ if ($ENV{RL_PASTE_CMD}) {
+ $mess = "Reading from pipe `$ENV{RL_PASTE_CMD}'";
+ open PASTE, "$ENV{RL_PASTE_CMD} |" or warn("$mess: $!"), return;
+ } elsif (defined $ENV{HOME}) {
+ $mess = "Reading from file `$ENV{HOME}/.rl_cutandpaste'";
+ open PASTE, "< $ENV{HOME}/.rl_cutandpaste" or warn("$mess: $!"), return;
+ }
+ if ($mess) {
+ local $/;
+ $in = <PASTE>;
+ close PASTE or warn("$mess, closing: $!");
+ }
+ }
+ if (defined $in) {
+ $in =~ s/\n+$//;
+ return &TextInsert($_[0], $in);
+ }
+ &TextInsert($_[0], $KillBuffer);
+}
+
+sub F_BeginUndoGroup {
+ push @undoGroupS, $#undo;
+}
+
+sub F_EndUndoGroup {
+ return F_Ding unless @undoGroupS;
+ my $last = pop @undoGroupS;
+ return unless $#undo > $last + 1;
+ my $now = pop @undo;
+ $#undo = $last;
+ push @undo, $now;
+}
+
+sub F_DoNothing { # E.g., reset digit-argument
+ 1;
+}
+
+sub F_ForceMemorizeDigitArgument {
+ $memorizedArg = shift;
+}
+
+sub F_MemorizeDigitArgument {
+ return if defined $memorizedArg;
+ $memorizedArg = shift;
+}
+
+sub F_UnmemorizeDigitArgument {
+ $memorizedArg = undef;
+}
+
+sub F_MemorizePos {
+ $memorizedPos = $D;
+}
+
+# It is assumed that F_MemorizePos was called, then something was inserted,
+# then F_MergeInserts is called with a prefix argument to multiply
+# insertion by
+
+sub F_MergeInserts {
+ my $n = shift;
+ return F_Ding unless defined $memorizedPos and $n > 0;
+ my ($b, $e) = ($memorizedPos, $D);
+ ($b, $e) = ($e, $b) if $e < $b;
+ if ($n) {
+ substr($line, $e, 0) = substr($line, $b, $e - $b) x ($n - 1);
+ } else {
+ substr($line, $b, $e - $b) = '';
+ }
+ $D = $b + ($e - $b) * $n;
+}
+
+sub F_ResetDigitArgument {
+ return F_Ding unless defined $memorizedArg;
+ my $in = &getc_with_pending;
+ return unless defined $in;
+ my $ord = ord $in;
+ local(*KeyMap) = $var_EditingMode;
+ &do_command(*KeyMap, $memorizedArg, $ord);
+}
+
+sub F_BeginPasteGroup {
+ my $c = shift;
+ $memorizedArg = $c unless defined $memorizedArg;
+ F_BeginUndoGroup(1);
+ $memorizedPos = $D;
+}
+
+sub F_EndPasteGroup {
+ my $c = $memorizedArg;
+ undef $memorizedArg;
+ $c = 1 unless defined $c;
+ F_MergeInserts($c);
+ F_EndUndoGroup(1);
+}
+
+sub F_BeginEditGroup {
+ $memorizedArg = shift;
+ F_BeginUndoGroup(1);
+}
+
+sub F_EndEditGroup {
+ undef $memorizedArg;
+ F_EndUndoGroup(1);
+}
+
+1;
+__END__