Aspell(3) User Contributed Perl Documentation Aspell(3)NAMEText::Aspell - Perl interface to the GNU Aspell library
SYNOPSIS
use Text::Aspell;
my $speller = Text::Aspell->new;
die unless $speller;
# Set some options
$speller->set_option('lang','en_US');
$speller->set_option('sug-mode','fast');
# check a word
print $speller->check( $word )
? "$word found\n"
: "$word not found!\n";
# lookup up words
my @suggestions = $speller->suggest( $misspelled );
# lookup config options
my $language = $speller->get_option('lang');
print $speller->errstr unless defined $language;
# fetch a config item that is a list
my @sgml_extensions = $speller->get_option_as_list('sgml-extension');
# fetch the configuration keys and their default settings
my $options = $speller->fetch_option_keys;
# or dump config settings to STDOUT
$speller->print_config || $speller->errstr;
# What dictionaries are installed as simple strings
my @dicts = $speller->list_dictionaries;
# or as an array of hashes
@dicts = $speller->dictionary_info;
print Data::Dumper::Dumper( \@dicts );
Here's an example how to create and use your own word list
Create a dictionary:
$ aspell --lang=en create master ./dictionary.local < space_separated_word_list
Then in your code:
use Text::Aspell;
my $speller = Text::Aspell->new;
die unless $speller;
$speller->set_option('master','./dictionary.local');
# check a word
print $speller->check( $word )
? "$word found\n"
: "$word not found!\n";
DESCRIPTION
This module provides a Perl interface to the GNU Aspell library. This
module is to meet the need of looking up many words, one at a time, in
a single session, such as spell-checking a document in memory.
The GNU C interface is described at:
http://aspell.net/man-html/Through-the-C-API.html#Through-the-C-API
It's worth looking over the way config and speller (manager) objects
are created when using the Aspell C API as some of that is hidden in
the Text::Aspell module.
For example, with Text::Aspell you do not have to explicitly create a
speller object. The speller (manager) object is created automatically
the first time you call suggest() or check().
Note also that once the speller object is created some (all?) config
options cannot be changed. For example, setting configuration options
such as "lang" are what determine what dictionary Aspell will use.
Once the speller object is created that dictionary will be used. I.e.
setting "lang" after the speller object is created will have no effect.
DEPENDENCIES
You MUST have installed GNU Aspell library version 0.50.1 or higher on
your system before installing this Text::Aspell Perl module. If
installing Aspell using your operating system's package management
system, you may need to install the Aspell development package (for
example, on Debian libaspell-dev).
Aspell can source can be downloaded from:
http://aspell.net
There have been a number of bug reports because people failed to
install aspell before installing this module. This is an interface to
the aspell library installed on your system, not a replacement for
aspell.
You must also have the English dictionary installed when running the
module's test suite.
Also, please see the README and Changes files. README may have
specific information about your platform.
METHODS
The following methods are available:
$speller = Text::Aspell->new;
Creates a new speller object. New does not take any parameters
(future version may allow options set by passing in a hash
reference of options and value pairs). Returns "undef" if the
object could not be created, which is unlikely.
Internally, new() creates an object to store Aspell structures
(AspellConfig, AspellSpeller, and a space for an error string and
then calls new_aspell_config();
$speller->set_option($option_name, $value);
Sets the configuration option $option_name to the value of $value.
Returns "undef" on error, and the error message can be printed with
$speller->errstr.
You should set configuration options before calling the
$speller->create_speller method. See the GNU Aspell documentation
for the available configuration settings and how (and when) they
may be used.
$speller->remove_option($option_name);
Removes (sets to the default value) the configuration option
specified by $option_name. Returns "undef" on error, and the error
message can be printed with $speller->errstr. You may only set
configuration options before calling the $speller->create_speller
method.
$string = $speller->get_option($option_name);
Returns the current setting for the given configuration option.
The values are strings. For configuration options that are lists
used the "get_option_as_list()" method.
Returns "undef" on error, and the error message can be printed with
$speller->errstr.
Note that this may return different results depending on if it's
called before or after $speller->create_speller is called.
@list = $speller->get_option_as_list($option_name);
Returns an array of list items for the given option. Use this
method to fetch configuration values that are of type list.
Returns "undef" on error, and the error message can be printed with
$speller->errstr.
Note that this may return different results depending on if it's
called before or after $speller->create_speller is called.
$options = $speller->fetch_option_keys;
Returns a hash of hashes. The keys are the possible configuration
options and the values is a hash with keys of:
desc : A short description of the option
default : The default value for this option
type : The data type of option (see aspell.h)
$speller->print_config;
Prints the current configuration to STDOUT. Useful for debugging.
Note that this will return different results depending on if it's
called before or after $speller->create_speller is called.
$speller->errstr;
Returns the error string from the last error. Check the previous
call for an "undef" return value before calling this method
$errnum = $speller->errnum;
Returns the error number from the last error. Some errors may only
set the error string ($speller->errstr) on errors, so it's best to
check use the errstr method over this method.
This method is deprecated.
$found = $speller->check($word);
Checks if a word is found in the dictionary. Returns true if the
word is found in the dictionary, false but defined if the word is
not in the dictionary. Returns "undef" on error, and the error
message can be printed with $speller->errstr.
This calls $speller->create_speller if the speller has not been
created by an explicit call to $speller->create_speller.
@suggestions = $speller->suggest($word)
Returns an array of word suggestions for the specified word. The
words are returned with the best guesses at the start of the list.
$speller->create_speller;
This method is normally not called by your program. It is called
automatically the first time $speller->check() or
$speller->suggest() is called to create a spelling "speller".
You might want to call this when your program first starts up to
make the first access a bit faster, or if you need to read back
configuration settings before looking up words.
The creation of the speller builds a configuration profile in the
speller structure. Results from calling print_config() and
get_option() will change after calling create_speller(). In
general, it's best to read config settings back after calling
create_speller() or after calling spell() or suggest(). Returns
"undef" on error, and the error message can be printed with
$speller->errstr.
$speller->add_to_session($word)
$speller->add_to_personal($word)
Adds a word to the session or personal word lists. Words added
will be offered as suggestions.
$speller->store_replacement($word, $replacement);
This method can be used to instruct the speller which word you used
as a replacement for a misspelled word. This allows the speller to
offer up the replacement next time the word is misspelled. See
section 6.3 of the GNU Aspell documentation for a better
description.
(July 2005 note: best to ignore any return value for now)
$speller->save_all_word_lists;
Writes any pending word lists to disk.
$speller->clear_session;
Clears the current session word list.
@dicts = $speller->list_dictionaries;
This returns an array of installed dictionary files. Each is a
single string formatted as:
[name]:[code]:[jargon]:[size]:[module]
Name and code will often be the same, but name is the complete name
of the dictionary which can be used to directly select a
dictionary, and code is the language/region code only.
$array_ref = $speller->$speller->dictionary_info;
Like the "list_dictionaries()" method, this method returns an array
of hash references. For example, an entry for a dictionary might
have the following hash reference:
{
'module' => 'default',
'code' => 'en_US',
'size' => 60,
'jargon' => 'w-accents',
'name' => 'en_US-w-accents'
},
Not all hash keys will be available for every dictionary (e.g. the
dictionary may not have a "jargon" key).
Upgrading from Text::PspellText::Aspell works with GNU Aspell and is a replacement for the module
Text::Pspell. Text::Pspell is no longer supported.
Upgrading should be a simple process. Only one method name has
changed: "create_manager" is now called "create_speller". Code
designed to use the old Text::Pspell module may not even call the
"create_manager" method so this may not be an issue.
The "language_tag" configuration setting is now called "lang".
Diffs for code that uses Text::Pspell might look like:
- use Text::Pspell;
+ use Text::Aspell;
- $speller = Text::Pspell->new;
+ $speller = Text::Aspell->new;
- $speller->create_manager || die "Failed to create speller: " . $speller->errstr;
+ $speller->create_speller || die "Failed to create speller: " . $speller->errstr;
If you used a custom dictionary installed in non-standard location and
indexed the dictionary with Aspell/Pspell .pwli files you will need to
change how you access your dictionary (e.g. by setting the "master"
configuration setting with the path to the dictionary). See the GNU
Aspell documentation for details.
BUGS
Probably.
COPYRIGHT
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
AUTHOR
Bill Moseley moseley@hank.org.
This module is based on a perl module written by Doru Theodor Petrescu
<pdoru@kappa.ro>.
Aspell is written and maintained by Kevin Atkinson.
Please see:
http://aspell.net
perl v5.14.1 2007-09-21 Aspell(3)
