[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / Parser / Access.pm

package SQL::Translator::Parser::Access;

# -------------------------------------------------------------------
# Copyright (C) 2002-2009 SQLFairy Authors
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307  USA
# -------------------------------------------------------------------

=head1 NAME

SQL::Translator::Parser::Access - parser for Access as produced by mdbtools

=head1 SYNOPSIS

  use SQL::Translator;
  use SQL::Translator::Parser::Access;

  my $translator = SQL::Translator->new;
  $translator->parser("SQL::Translator::Parser::Access");

=head1 DESCRIPTION

The grammar derived from the MySQL grammar.  The input is expected to be 
something similar to the output of mdbtools (http://mdbtools.sourceforge.net/).

=cut

use strict;
use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
$VERSION = '1.59';
$DEBUG   = 0 unless defined $DEBUG;

use Data::Dumper;
use Parse::RecDescent;
use Exporter;
use base qw(Exporter);

@EXPORT_OK = qw(parse);

# Enable warnings within the Parse::RecDescent module.
$::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error
$::RD_WARN   = 1; # Enable warnings. This will warn on unused rules &c.
$::RD_HINT   = 1; # Give out hints to help fix problems.

$GRAMMAR = q!

{ 
    my ( %tables, $table_order, @table_comments );
}

#
# The "eofile" rule makes the parser fail if any "statement" rule
# fails.  Otherwise, the first successful match by a "statement" 
# won't cause the failure needed to know that the parse, as a whole,
# failed. -ky
#
startrule : statement(s) eofile { \%tables }

eofile : /^\Z/

statement : comment
    | use
    | set
    | drop
    | create
    | <error>

use : /use/i WORD ';'
    { @table_comments = () }

set : /set/i /[^;]+/ ';'
    { @table_comments = () }

drop : /drop/i TABLE /[^;]+/ ';'

drop : /drop/i WORD(s) ';'
    { @table_comments = () }

create : CREATE /database/i WORD ';'
    { @table_comments = () }

create : CREATE TABLE table_name '(' create_definition(s /,/) ')' ';'
    { 
        my $table_name                       = $item{'table_name'};
        $tables{ $table_name }{'order'}      = ++$table_order;
        $tables{ $table_name }{'table_name'} = $table_name;

        if ( @table_comments ) {
            $tables{ $table_name }{'comments'} = [ @table_comments ];
            @table_comments = ();
        }

        my $i = 1;
        for my $definition ( @{ $item[5] } ) {
            if ( $definition->{'supertype'} eq 'field' ) {
                my $field_name = $definition->{'name'};
                $tables{ $table_name }{'fields'}{ $field_name } = 
                    { %$definition, order => $i };
                $i++;
        
                if ( $definition->{'is_primary_key'} ) {
                    push @{ $tables{ $table_name }{'constraints'} },
                        {
                            type   => 'primary_key',
                            fields => [ $field_name ],
                        }
                    ;
                }
            }
            elsif ( $definition->{'supertype'} eq 'constraint' ) {
                push @{ $tables{ $table_name }{'constraints'} }, $definition;
            }
            elsif ( $definition->{'supertype'} eq 'index' ) {
                push @{ $tables{ $table_name }{'indices'} }, $definition;
            }
        }

        1;
    }

create : CREATE UNIQUE(?) /(index|key)/i index_name /on/i table_name '(' field_name(s /,/) ')' ';'
    {
        @table_comments = ();
        push @{ $tables{ $item{'table_name'} }{'indices'} },
            {
                name   => $item[4],
                type   => $item[2] ? 'unique' : 'normal',
                fields => $item[8],
            }
        ;
    }

create_definition : constraint 
    | index
    | field
    | comment
    | <error>

comment : /^\s*--(.*)\n/ 
    { 
        my $comment =  $1;
        $return     = $comment;
        push @table_comments, $comment;
    }

field : field_name data_type field_qualifier(s?) reference_definition(?)
    { 
        $return = { 
            supertype   => 'field',
            name        => $item{'field_name'}, 
            data_type   => $item{'data_type'}{'type'},
            size        => $item{'data_type'}{'size'},
            constraints => $item{'reference_definition(?)'},
        } 
    }
    | <error>

field_qualifier : not_null
    { 
        $return = { 
             null => $item{'not_null'},
        } 
    }

field_qualifier : default_val
    { 
        $return = { 
             default => $item{'default_val'},
        } 
    }

field_qualifier : auto_inc
    { 
        $return = { 
             is_auto_inc => $item{'auto_inc'},
        } 
    }

field_qualifier : primary_key
    { 
        $return = { 
             is_primary_key => $item{'primary_key'},
        } 
    }

field_qualifier : unsigned
    { 
        $return = { 
             is_unsigned => $item{'unsigned'},
        } 
    }

field_qualifier : /character set/i WORD
    {
        $return = {
            character_set => $item[2],
        }
    }

reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?)
    {
        $return = {
            type             => 'foreign_key',
            reference_table  => $item[2],
            reference_fields => $item[3][0],
            match_type       => $item[4][0],
            on_delete        => $item[5][0],
            on_update        => $item[6][0],
        }
    }

match_type : /match full/i { 'full' }
    |
    /match partial/i { 'partial' }

on_delete : /on delete/i reference_option
    { $item[2] }

on_update : /on update/i reference_option
    { $item[2] }

reference_option: /restrict/i | 
    /cascade/i   | 
    /set null/i  | 
    /no action/i | 
    /set default/i
    { $item[1] }  

index : normal_index
    | fulltext_index
    | <error>

table_name   : NAME

field_name   : NAME

index_name   : NAME

data_type    : access_data_type parens_value_list(s?) type_qualifier(s?)
    { 
        $return        = { 
            type       => $item[1],
            size       => $item[2][0],
            qualifiers => $item[3],
        } 
    }

access_data_type : /long integer/i { $return = 'Long Integer' }
    | /text/i { $return = 'Text' }
    | /datetime (\(short\))?/i { $return = 'DateTime' }
    | /boolean/i { $return = 'Boolean' }
    | WORD

parens_field_list : '(' field_name(s /,/) ')'
    { $item[2] }

parens_value_list : '(' VALUE(s /,/) ')'
    { $item[2] }

type_qualifier : /(BINARY|UNSIGNED|ZEROFILL)/i
    { lc $item[1] }

field_type   : WORD

create_index : /create/i /index/i

not_null     : /not/i /null/i { $return = 0 }

unsigned     : /unsigned/i { $return = 0 }

default_val : /default/i /'(?:.*?\\')*.*?'|(?:')?[\w\d:.-]*(?:')?/
    {
        $item[2] =~ s/^\s*'|'\s*$//g;
        $return  =  $item[2];
    }

auto_inc : /auto_increment/i { 1 }

primary_key : /primary/i /key/i { 1 }

constraint : primary_key_def
    | unique_key_def
    | foreign_key_def
    | <error>

foreign_key_def : foreign_key_def_begin parens_field_list reference_definition
    {
        $return              =  {
            supertype        => 'constraint',
            type             => 'foreign_key',
            name             => $item[1],
            fields           => $item[2],
            %{ $item{'reference_definition'} },
        }
    }

foreign_key_def_begin : /constraint/i /foreign key/i 
    { $return = '' }
    |
    /constraint/i WORD /foreign key/i
    { $return = $item[2] }
    |
    /foreign key/i
    { $return = '' }

primary_key_def : primary_key index_name(?) '(' name_with_opt_paren(s /,/) ')'
    { 
        $return       = { 
            supertype => 'constraint',
            name      => $item{'index_name(?)'}[0],
            type      => 'primary_key',
            fields    => $item[4],
        };
    }

unique_key_def : UNIQUE KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
    { 
        $return       = { 
            supertype => 'constraint',
            name      => $item{'index_name(?)'}[0],
            type      => 'unique',
            fields    => $item[5],
        } 
    }

normal_index : KEY index_name(?) '(' name_with_opt_paren(s /,/) ')'
    { 
        $return       = { 
            supertype => 'index',
            type      => 'normal',
            name      => $item{'index_name(?)'}[0],
            fields    => $item[4],
        } 
    }

fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
    { 
        $return       = { 
            supertype => 'index',
            type      => 'fulltext',
            name      => $item{'index_name(?)'}[0],
            fields    => $item[5],
        } 
    }

name_with_opt_paren : NAME parens_value_list(s?)
    { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] }

UNIQUE : /unique/i { 1 }

KEY : /key/i | /index/i

table_option : WORD /\s*=\s*/ WORD
    { 
        $return = { $item[1] => $item[3] };
    }

CREATE : /create/i

TEMPORARY : /temporary/i

TABLE : /table/i

WORD : /\w+/

DIGITS : /\d+/

COMMA : ','

NAME    : "`" /\w+/ "`"
    { $item[2] }
    | /\w+/
    { $item[1] }

VALUE   : /[-+]?\.?\d+(?:[eE]\d+)?/
    { $item[1] }
    | /'.*?'/   
    { 
        # remove leading/trailing quotes 
        my $val = $item[1];
        $val    =~ s/^['"]|['"]$//g;
        $return = $val;
    }
    | /NULL/
    { 'NULL' }

!;

# -------------------------------------------------------------------
sub parse {
    my ( $translator, $data ) = @_;
    my $parser = Parse::RecDescent->new($GRAMMAR);

    local $::RD_TRACE  = $translator->trace ? 1 : undef;
    local $DEBUG       = $translator->debug;

    unless (defined $parser) {
        return $translator->error("Error instantiating Parse::RecDescent ".
            "instance: Bad grammer");
    }

    my $result = $parser->startrule($data);
    return $translator->error( "Parse failed." ) unless defined $result;
    warn Dumper( $result ) if $DEBUG;

    my $schema = $translator->schema;
    my @tables = sort { 
        $result->{ $a }->{'order'} <=> $result->{ $b }->{'order'}
    } keys %{ $result };

    for my $table_name ( @tables ) {
        my $tdata =  $result->{ $table_name };
        my $table =  $schema->add_table( 
            name  => $tdata->{'table_name'},
        ) or die $schema->error;

        $table->comments( $tdata->{'comments'} );

        my @fields = sort { 
            $tdata->{'fields'}->{$a}->{'order'} 
            <=>
            $tdata->{'fields'}->{$b}->{'order'}
        } keys %{ $tdata->{'fields'} };

        for my $fname ( @fields ) {
            my $fdata = $tdata->{'fields'}{ $fname };
            my $field = $table->add_field(
                name              => $fdata->{'name'},
                data_type         => $fdata->{'data_type'},
                size              => $fdata->{'size'},
                default_value     => $fdata->{'default'},
                is_auto_increment => $fdata->{'is_auto_inc'},
                is_nullable       => $fdata->{'null'},
                comments          => $fdata->{'comments'},
            ) or die $table->error;

            $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
        }

        for my $idata ( @{ $tdata->{'indices'} || [] } ) {
            my $index  =  $table->add_index(
                name   => $idata->{'name'},
                type   => uc $idata->{'type'},
                fields => $idata->{'fields'},
            ) or die $table->error;
        }
    }

    return 1;
}

1;

# -------------------------------------------------------------------
# Where man is not nature is barren.
# William Blake
# -------------------------------------------------------------------

=pod

=head1 AUTHOR

Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.

=head1 SEE ALSO

perl(1), Parse::RecDescent, SQL::Translator::Schema.

=cut
Commit	Line	Data
7c44825c	1	package SQL::Translator::Parser::Access;
	2
	3	# -------------------------------------------------------------------
478f608d	4	# Copyright (C) 2002-2009 SQLFairy Authors
7c44825c	5	#
	6	# This program is free software; you can redistribute it and/or
	7	# modify it under the terms of the GNU General Public License as
	8	# published by the Free Software Foundation; version 2.
	9	#
	10	# This program is distributed in the hope that it will be useful, but
	11	# WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	# General Public License for more details.
	14	#
	15	# You should have received a copy of the GNU General Public License
	16	# along with this program; if not, write to the Free Software
	17	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	18	# 02111-1307 USA
	19	# -------------------------------------------------------------------
	20
	21	=head1 NAME
	22
	23	SQL::Translator::Parser::Access - parser for Access as produced by mdbtools
	24
	25	=head1 SYNOPSIS
	26
	27	use SQL::Translator;
	28	use SQL::Translator::Parser::Access;
	29
	30	my $translator = SQL::Translator->new;
	31	$translator->parser("SQL::Translator::Parser::Access");
	32
	33	=head1 DESCRIPTION
	34
	35	The grammar derived from the MySQL grammar. The input is expected to be
	36	something similar to the output of mdbtools (http://mdbtools.sourceforge.net/).
	37
	38	=cut
	39
	40	use strict;
da06ac74	41	use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
4ab3763d	42	$VERSION = '1.59';
7c44825c	43	$DEBUG = 0 unless defined $DEBUG;
	44
	45	use Data::Dumper;
	46	use Parse::RecDescent;
	47	use Exporter;
	48	use base qw(Exporter);
	49
	50	@EXPORT_OK = qw(parse);
	51
	52	# Enable warnings within the Parse::RecDescent module.
	53	$::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error
	54	$::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c.
	55	$::RD_HINT = 1; # Give out hints to help fix problems.
	56
	57	$GRAMMAR = q!
	58
	59	{
	60	my ( %tables, $table_order, @table_comments );
	61	}
	62
	63	#
	64	# The "eofile" rule makes the parser fail if any "statement" rule
	65	# fails. Otherwise, the first successful match by a "statement"
	66	# won't cause the failure needed to know that the parse, as a whole,
	67	# failed. -ky
	68	#
	69	startrule : statement(s) eofile { \%tables }
	70
	71	eofile : /^\Z/
	72
	73	statement : comment
	74	\| use
	75	\| set
	76	\| drop
	77	\| create
	78	\| <error>
	79
	80	use : /use/i WORD ';'
	81	{ @table_comments = () }
	82
	83	set : /set/i /[^;]+/ ';'
	84	{ @table_comments = () }
	85
	86	drop : /drop/i TABLE /[^;]+/ ';'
	87
	88	drop : /drop/i WORD(s) ';'
	89	{ @table_comments = () }
	90
	91	create : CREATE /database/i WORD ';'
	92	{ @table_comments = () }
	93
	94	create : CREATE TABLE table_name '(' create_definition(s /,/) ')' ';'
	95	{
	96	my $table_name = $item{'table_name'};
	97	$tables{ $table_name }{'order'} = ++$table_order;
	98	$tables{ $table_name }{'table_name'} = $table_name;
	99
	100	if ( @table_comments ) {
	101	$tables{ $table_name }{'comments'} = [ @table_comments ];
	102	@table_comments = ();
	103	}
	104
	105	my $i = 1;
	106	for my $definition ( @{ $item[5] } ) {
107	if ( $definition->{'supertype'} eq 'field' ) {
108	my $field_name = $definition->{'name'};
109	$tables{ $table_name }{'fields'}{ $field_name } =
110	{ %$definition, order => $i };
111	$i++;
112
113	if ( $definition->{'is_primary_key'} ) {
114	push @{ $tables{ $table_name }{'constraints'} },
115	{
116	type => 'primary_key',
117	fields => [ $field_name ],
118	}
119	;
120	}
121	}
122	elsif ( $definition->{'supertype'} eq 'constraint' ) {
123	push @{ $tables{ $table_name }{'constraints'} }, $definition;
124	}
125	elsif ( $definition->{'supertype'} eq 'index' ) {
126	push @{ $tables{ $table_name }{'indices'} }, $definition;
127	}
128	}
129
130	1;
131	}
132
133	create : CREATE UNIQUE(?) /(index\|key)/i index_name /on/i table_name '(' field_name(s /,/) ')' ';'
134	{
135	@table_comments = ();
136	push @{ $tables{ $item{'table_name'} }{'indices'} },
137	{
138	name => $item[4],
139	type => $item[2] ? 'unique' : 'normal',
140	fields => $item[8],
141	}
142	;
143	}
144
145	create_definition : constraint
146	\| index
147	\| field
148	\| comment
149	\| <error>
150
151	comment : /^\s--(.)\n/
152	{
153	my $comment = $1;
154	$return = $comment;
155	push @table_comments, $comment;
156	}
157
158	field : field_name data_type field_qualifier(s?) reference_definition(?)
159	{
7c44825c	160	$return = {
	161	supertype => 'field',
	162	name => $item{'field_name'},
	163	data_type => $item{'data_type'}{'type'},
	164	size => $item{'data_type'}{'size'},
7c44825c	165	constraints => $item{'reference_definition(?)'},
7c44825c	166	}
	167	}
	168	\| <error>
	169
	170	field_qualifier : not_null
	171	{
	172	$return = {
	173	null => $item{'not_null'},
	174	}
	175	}
	176
	177	field_qualifier : default_val
	178	{
	179	$return = {
	180	default => $item{'default_val'},
	181	}
	182	}
	183
	184	field_qualifier : auto_inc
	185	{
	186	$return = {
	187	is_auto_inc => $item{'auto_inc'},
	188	}
	189	}
	190
	191	field_qualifier : primary_key
	192	{
	193	$return = {
	194	is_primary_key => $item{'primary_key'},
	195	}
	196	}
	197
	198	field_qualifier : unsigned
	199	{
	200	$return = {
	201	is_unsigned => $item{'unsigned'},
	202	}
	203	}
	204
	205	field_qualifier : /character set/i WORD
	206	{
	207	$return = {
	208	character_set => $item[2],
	209	}
	210	}
	211
100684f3	212	reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?)
7c44825c	213	{
	214	$return = {
	215	type => 'foreign_key',
	216	reference_table => $item[2],
	217	reference_fields => $item[3][0],
	218	match_type => $item[4][0],
100684f3	219	on_delete => $item[5][0],
100684f3	220	on_update => $item[6][0],
7c44825c	221	}
	222	}
	223
	224	match_type : /match full/i { 'full' }
	225	\|
	226	/match partial/i { 'partial' }
	227
100684f3	228	on_delete : /on delete/i reference_option
7c44825c	229	{ $item[2] }
7c44825c	230
100684f3	231	on_update : /on update/i reference_option
7c44825c	232	{ $item[2] }
	233
	234	reference_option: /restrict/i \|
	235	/cascade/i \|
	236	/set null/i \|
	237	/no action/i \|
	238	/set default/i
	239	{ $item[1] }
	240
	241	index : normal_index
	242	\| fulltext_index
	243	\| <error>
	244
	245	table_name : NAME
	246
	247	field_name : NAME
	248
	249	index_name : NAME
	250
	251	data_type : access_data_type parens_value_list(s?) type_qualifier(s?)
	252	{
	253	$return = {
	254	type => $item[1],
	255	size => $item[2][0],
	256	qualifiers => $item[3],
	257	}
	258	}
	259
	260	access_data_type : /long integer/i { $return = 'Long Integer' }
	261	\| /text/i { $return = 'Text' }
	262	\| /datetime (\(short\))?/i { $return = 'DateTime' }
	263	\| /boolean/i { $return = 'Boolean' }
	264	\| WORD
	265
	266	parens_field_list : '(' field_name(s /,/) ')'
	267	{ $item[2] }
	268
	269	parens_value_list : '(' VALUE(s /,/) ')'
	270	{ $item[2] }
	271
	272	type_qualifier : /(BINARY\|UNSIGNED\|ZEROFILL)/i
	273	{ lc $item[1] }
	274
	275	field_type : WORD
	276
	277	create_index : /create/i /index/i
	278
	279	not_null : /not/i /null/i { $return = 0 }
	280
	281	unsigned : /unsigned/i { $return = 0 }
	282
	283	default_val : /default/i /'(?:.?\\').?'\|(?:')?[\w\d:.-](?:')?/
	284	{
	285	$item[2] =~ s/^\s'\|'\s$//g;
	286	$return = $item[2];
	287	}
	288
	289	auto_inc : /auto_increment/i { 1 }
	290
	291	primary_key : /primary/i /key/i { 1 }
	292
	293	constraint : primary_key_def
	294	\| unique_key_def
	295	\| foreign_key_def
296	\| <error>
297
298	foreign_key_def : foreign_key_def_begin parens_field_list reference_definition
299	{
300	$return = {
301	supertype => 'constraint',
302	type => 'foreign_key',
303	name => $item[1],
304	fields => $item[2],
305	%{ $item{'reference_definition'} },
306	}
307	}
308
309	foreign_key_def_begin : /constraint/i /foreign key/i
310	{ $return = '' }
311	\|
312	/constraint/i WORD /foreign key/i
313	{ $return = $item[2] }
314	\|
315	/foreign key/i
316	{ $return = '' }
317
318	primary_key_def : primary_key index_name(?) '(' name_with_opt_paren(s /,/) ')'
319	{
320	$return = {
321	supertype => 'constraint',
322	name => $item{'index_name(?)'}[0],
323	type => 'primary_key',
324	fields => $item[4],
325	};
326	}
327
328	unique_key_def : UNIQUE KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
329	{
330	$return = {
331	supertype => 'constraint',
332	name => $item{'index_name(?)'}[0],
333	type => 'unique',
334	fields => $item[5],
335	}
336	}
337
338	normal_index : KEY index_name(?) '(' name_with_opt_paren(s /,/) ')'
339	{
340	$return = {
341	supertype => 'index',
342	type => 'normal',
343	name => $item{'index_name(?)'}[0],
344	fields => $item[4],
345	}
346	}
347
348	fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
349	{
350	$return = {
351	supertype => 'index',
352	type => 'fulltext',
353	name => $item{'index_name(?)'}[0],
354	fields => $item[5],
355	}
356	}
357
358	name_with_opt_paren : NAME parens_value_list(s?)
359	{ $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] }
360
361	UNIQUE : /unique/i { 1 }
362
363	KEY : /key/i \| /index/i
364
365	table_option : WORD /\s=\s/ WORD
366	{
367	$return = { $item[1] => $item[3] };
368	}
369
370	CREATE : /create/i
371
372	TEMPORARY : /temporary/i
373
374	TABLE : /table/i
375
376	WORD : /\w+/
377
378	DIGITS : /\d+/
379
380	COMMA : ','
381
382	NAME : "`" /\w+/ "`"
383	{ $item[2] }
384	\| /\w+/
385	{ $item[1] }
386
387	VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
388	{ $item[1] }
389	\| /'.*?'/
390	{
391	# remove leading/trailing quotes
392	my $val = $item[1];
393	$val =~ s/^['"]\|['"]$//g;
394	$return = $val;
395	}
396	\| /NULL/
397	{ 'NULL' }
398
399	!;
400
401	# -------------------------------------------------------------------
402	sub parse {
403	my ( $translator, $data ) = @_;
404	my $parser = Parse::RecDescent->new($GRAMMAR);
405
406	local $::RD_TRACE = $translator->trace ? 1 : undef;
407	local $DEBUG = $translator->debug;
408
409	unless (defined $parser) {
410	return $translator->error("Error instantiating Parse::RecDescent ".
411	"instance: Bad grammer");
412	}
413
414	my $result = $parser->startrule($data);
415	return $translator->error( "Parse failed." ) unless defined $result;
416	warn Dumper( $result ) if $DEBUG;
417
418	my $schema = $translator->schema;
419	my @tables = sort {
420	$result->{ $a }->{'order'} <=> $result->{ $b }->{'order'}
421	} keys %{ $result };
422
423	for my $table_name ( @tables ) {
424	my $tdata = $result->{ $table_name };
425	my $table = $schema->add_table(
426	name => $tdata->{'table_name'},
427	) or die $schema->error;
428
429	$table->comments( $tdata->{'comments'} );
430
431	my @fields = sort {
432	$tdata->{'fields'}->{$a}->{'order'}
433	<=>
434	$tdata->{'fields'}->{$b}->{'order'}
435	} keys %{ $tdata->{'fields'} };
436
437	for my $fname ( @fields ) {
438	my $fdata = $tdata->{'fields'}{ $fname };
439	my $field = $table->add_field(
440	name => $fdata->{'name'},
441	data_type => $fdata->{'data_type'},
442	size => $fdata->{'size'},
443	default_value => $fdata->{'default'},
444	is_auto_increment => $fdata->{'is_auto_inc'},
445	is_nullable => $fdata->{'null'},
446	comments => $fdata->{'comments'},
447	) or die $table->error;
448
449	$table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
7c44825c	450	}
	451
	452	for my $idata ( @{ $tdata->{'indices'} \|\| [] } ) {
	453	my $index = $table->add_index(
	454	name => $idata->{'name'},
	455	type => uc $idata->{'type'},
	456	fields => $idata->{'fields'},
	457	) or die $table->error;
	458	}
7c44825c	459	}
	460
	461	return 1;
	462	}
	463
	464	1;
	465
	466	# -------------------------------------------------------------------
	467	# Where man is not nature is barren.
	468	# William Blake
	469	# -------------------------------------------------------------------
	470
	471	=pod
	472
	473	=head1 AUTHOR
	474
	475	Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
	476
	477	=head1 SEE ALSO
	478
	479	perl(1), Parse::RecDescent, SQL::Translator::Schema.
	480
	481	=cut