/usr/share/vile/perl/spell.pm is in vile-common 9.8l-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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package spell;
use strict;
use File::Temp qw/ tempfile tempdir /;
use Vile;
require Vile::Exporter;
our @ISA = 'Vile::Exporter';
our %REGISTRY =
( spell => [ \&spell, 'spellcheck the current buffer (ispell)' ] );
sub checkline($) {
my @reply;
( my $fh, my $filename ) = tempfile();
print $fh $_[0];
close $fh;
open my $fh, "ispell -a < $filename 2>/dev/null |" or return @reply;
@reply = <$fh>;
close $fh;
unlink $filename;
return @reply;
}
sub spell {
my $work = Vile::working(0);
my %color = (
"&" => [ "color", "2" ],
"?" => [ "color", "5" ],
"#" => [ "color", "1" ],
);
my $prompt = "[S]kip, [R]eplace, [A]ccept, [I]nsert, [U]ncap, [Q]uit? ";
my $cb = $Vile::current_buffer;
my $blines = scalar( Vile->get("\$blines") );
$cb->setregion( 1, '$' )->attribute("normal");
my @dot = $cb->dot;
my ( $resp, @H, @O, @cmds, %accepted, %replaced, $off );
my $i = 1;
while (<$cb>) {
$off = 0;
undef @cmds, %accepted, %replaced;
$cb->dot($i);
Vile::update();
foreach $resp ( checkline($_) ) {
chop $resp;
if ( $resp =~ m:^(\&|\?|\#): ) {
@H = split( " ", ( split( ": ", $resp ) )[0] );
next if ( defined $accepted{ $H[1] } );
@O = split( ", ", ( split( ": ", $resp ) )[1] );
if ( $H[0] eq "#" ) {
$H[3] = $H[2];
$H[2] = 0;
}
if ( defined $replaced{ $H[1] } ) {
my $prior = -1;
for my $n ( 0 .. $#O ) {
if ( $O[$n] eq $replaced{ $H[1] } ) {
$prior = $n;
last;
}
}
if ( $prior >= 0 ) {
for my $n ( 1 .. $prior ) {
$O[$n] = $O[ $n - 1 ];
}
$O[0] = $replaced{ $H[1] };
}
else {
unshift @O, $replaced{ $H[1] };
$H[2]++;
}
}
@O = splice( @O, 0, $H[2] );
$cb->setregion( $i, $H[3] + $off,
$i, $H[3] + length( $H[1] ) + $off )
->attribute( "reverse", @{ $color{ $H[0] } } );
Vile::update();
print $prompt;
while ( $resp = uc( sprintf( "%c", Vile::keystroke() ) ) ) {
if ( $resp eq "A" ) {
$accepted{ $H[1] } = 1;
push @cmds, "\@$H[1]";
$cb->setregion( $i, $H[3] + $off,
$i, $H[3] + length( $H[1] ) + $off )
->attribute("normal")
->attribute( "bold", @{ $color{ $H[0] } } );
last;
}
elsif ( $resp eq "S" ) {
$cb->setregion( $i, $H[3] + $off,
$i, $H[3] + length( $H[1] ) + $off )
->attribute("normal")
->attribute( "bold", @{ $color{ $H[0] } } );
last;
}
elsif ( $resp eq "R" ) {
my $word = Vile::mlreply_opts( "Replace with? ", @O );
if ( defined $word ) {
$replaced{ $H[1] } = $word;
$cb->setregion( $i, $H[3] + $off,
$i, $H[3] + length( $H[1] ) + $off )
->attribute("normal")->delete;
$cb->dot( $i, $H[3] + $off );
print $cb $word;
$off = $off + length($word) - length( $H[1] );
}
else {
print $prompt;
next;
}
last;
}
elsif ( $resp eq "I" ) {
$accepted{ $H[1] } = 1;
push @cmds, "\@$H[1]";
push @cmds, "*$H[1]";
push @cmds, "#";
$cb->setregion( $i, $H[3] + $off,
$i, $H[3] + length( $H[1] ) + $off )
->attribute("normal")
->attribute( "bold", @{ $color{ $H[0] } } );
last;
}
elsif ( $resp eq "U" ) {
$accepted{ $H[1] } = 1;
push @cmds, "\@$H[1]";
push @cmds, "&$H[1]";
push @cmds, "#";
$cb->setregion( $i, $H[3] + $off,
$i, $H[3] + length( $H[1] ) + $off )
->attribute("normal")
->attribute( "bold", @{ $color{ $H[0] } } );
last;
}
elsif ( $resp eq "Q" ) {
$cb->setregion( $i, $H[3] + $off,
$i, $H[3] + length( $H[1] ) + $off )
->attribute("normal")
->attribute( "bold", @{ $color{ $H[0] } } );
Vile::working($work);
return;
}
}
}
}
last if ( ++$i > $blines );
$cb->setregion( $i, '$' );
}
$cb->dot(@dot);
Vile::working($work);
}
1;
__END__
=head1 NAME
spell - spelling checker in vile
=head1 SYNOPSIS
require "spell.pl"
In .vilerc
perl "Vile::register 'spell', 'spell', 'Spell Check', 'spell.pl'"
In [x]vile
:spell
:perl spell
=head1 DESCRIPTION
This is a spelling checker written for use within [x]vile
using the perl interface. It uses the "ispell" command
internally and hence is compatible with ispell's usage of
public and private dictionaries.
On invocation, it goes through the current buffer line by
line, finding spelling errors and highlighting them. The
current error is highlighted according to the following color
code and in reverse.
If the word is not in the dictionary, but there are near
misses, then the error is highlighted in green indicating
mild error. If there are no near misses but the word could
be formed by adding (illegal) affixes to a known root, the
error is highlighted in cyan indicating moderately serious
error. Finally, if the word is not in the dictionary, there
are no near misses and no possible derivations found then
the error is highlighted in red indicating a grave error.
As each error is highlighted in succession, the user is
prompted to enter a single character command as follows
(case is ignored):
R Replace the misspelled word completely
S Accept the word this time only
A Accept the word for the rest of this session
I Accept the word as it is, update private dictionary
U Accept the word, add lower case version to private
dictionary
Q Quit the spell checker session
If the user chooses to replace the word, then he is
prompted to enter the replacement word. If there are
possible replacements found by the spell checker itself,
the first is used as an initial value in the prompt. At
this prompt, the user can <TAB> his way through all the
possible replacements suggested by the spell checker. He
can also partially fill in a replacement and <TAB> through
all matching suggested replacements. On pressing <RET>, the
word is replaced with the one provided by the user. On
pressing <ESC>, replacement is aborted and the spell
checker moves on to the next error.
As each new error is highlighted successively, old errors are
switched from reverse to bold highlighting to allow the user
to follow the progress of the spell checker and at the same
time leave a trace of errors for later changes from outside
the spell checker.
=head1 CAVEATS
Since the spell checker utilizes "ispell" program
internally, it is mandatory that "ispell" be available in
the users path.
Since the spell checker works in line by line mode, the
"insert" and "uncap" commands don't update the private
dictionary immediately but only on reaching the end of the
current line.
=head1 CREDITS
Vile, Perl and Vile's Perl interface.
=head1 AUTHOR
Kuntal Daftary (daftary@cisco.com), 1998
=cut
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