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

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

# -------------------------------------------------------------------
# $Id: Access.pm 1440 2009-01-17 16:31:57Z jawnsy $
# -------------------------------------------------------------------
# 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 $GRAMMAR @EXPORT_OK ];
$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	# -------------------------------------------------------------------
d4f84dd1	4	# $Id: Access.pm 1440 2009-01-17 16:31:57Z jawnsy $
7c44825c	5	# -------------------------------------------------------------------
478f608d	6	# Copyright (C) 2002-2009 SQLFairy Authors
7c44825c	7	#
	8	# This program is free software; you can redistribute it and/or
	9	# modify it under the terms of the GNU General Public License as
	10	# published by the Free Software Foundation; version 2.
	11	#
	12	# This program is distributed in the hope that it will be useful, but
	13	# WITHOUT ANY WARRANTY; without even the implied warranty of
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	# General Public License for more details.
	16	#
	17	# You should have received a copy of the GNU General Public License
	18	# along with this program; if not, write to the Free Software
	19	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	20	# 02111-1307 USA
	21	# -------------------------------------------------------------------
	22
	23	=head1 NAME
	24
	25	SQL::Translator::Parser::Access - parser for Access as produced by mdbtools
	26
	27	=head1 SYNOPSIS
	28
	29	use SQL::Translator;
	30	use SQL::Translator::Parser::Access;
	31
	32	my $translator = SQL::Translator->new;
	33	$translator->parser("SQL::Translator::Parser::Access");
	34
	35	=head1 DESCRIPTION
	36
	37	The grammar derived from the MySQL grammar. The input is expected to be
	38	something similar to the output of mdbtools (http://mdbtools.sourceforge.net/).
	39
	40	=cut
	41
	42	use strict;
478f608d	43	use vars qw[ $DEBUG $GRAMMAR @EXPORT_OK ];
7c44825c	44	$DEBUG = 0 unless defined $DEBUG;
	45
	46	use Data::Dumper;
	47	use Parse::RecDescent;
	48	use Exporter;
	49	use base qw(Exporter);
	50
	51	@EXPORT_OK = qw(parse);
	52
	53	# Enable warnings within the Parse::RecDescent module.
	54	$::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error
	55	$::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c.
	56	$::RD_HINT = 1; # Give out hints to help fix problems.
	57
	58	$GRAMMAR = q!
	59
	60	{
	61	my ( %tables, $table_order, @table_comments );
	62	}
	63
	64	#
	65	# The "eofile" rule makes the parser fail if any "statement" rule
	66	# fails. Otherwise, the first successful match by a "statement"
	67	# won't cause the failure needed to know that the parse, as a whole,
	68	# failed. -ky
	69	#
	70	startrule : statement(s) eofile { \%tables }
	71
	72	eofile : /^\Z/
	73
	74	statement : comment
	75	\| use
	76	\| set
	77	\| drop
	78	\| create
	79	\| <error>
	80
	81	use : /use/i WORD ';'
	82	{ @table_comments = () }
	83
	84	set : /set/i /[^;]+/ ';'
	85	{ @table_comments = () }
	86
	87	drop : /drop/i TABLE /[^;]+/ ';'
	88
	89	drop : /drop/i WORD(s) ';'
	90	{ @table_comments = () }
	91
	92	create : CREATE /database/i WORD ';'
	93	{ @table_comments = () }
	94
	95	create : CREATE TABLE table_name '(' create_definition(s /,/) ')' ';'
	96	{
	97	my $table_name = $item{'table_name'};
	98	$tables{ $table_name }{'order'} = ++$table_order;
	99	$tables{ $table_name }{'table_name'} = $table_name;
	100
	101	if ( @table_comments ) {
	102	$tables{ $table_name }{'comments'} = [ @table_comments ];
	103	@table_comments = ();
	104	}
	105
	106	my $i = 1;
	107	for my $definition ( @{ $item[5] } ) {
108	if ( $definition->{'supertype'} eq 'field' ) {
109	my $field_name = $definition->{'name'};
110	$tables{ $table_name }{'fields'}{ $field_name } =
111	{ %$definition, order => $i };
112	$i++;
113
114	if ( $definition->{'is_primary_key'} ) {
115	push @{ $tables{ $table_name }{'constraints'} },
116	{
117	type => 'primary_key',
118	fields => [ $field_name ],
119	}
120	;
121	}
122	}
123	elsif ( $definition->{'supertype'} eq 'constraint' ) {
124	push @{ $tables{ $table_name }{'constraints'} }, $definition;
125	}
126	elsif ( $definition->{'supertype'} eq 'index' ) {
127	push @{ $tables{ $table_name }{'indices'} }, $definition;
128	}
129	}
130
131	1;
132	}
133
134	create : CREATE UNIQUE(?) /(index\|key)/i index_name /on/i table_name '(' field_name(s /,/) ')' ';'
135	{
136	@table_comments = ();
137	push @{ $tables{ $item{'table_name'} }{'indices'} },
138	{
139	name => $item[4],
140	type => $item[2] ? 'unique' : 'normal',
141	fields => $item[8],
142	}
143	;
144	}
145
146	create_definition : constraint
147	\| index
148	\| field
149	\| comment
150	\| <error>
151
152	comment : /^\s--(.)\n/
153	{
154	my $comment = $1;
155	$return = $comment;
156	push @table_comments, $comment;
157	}
158
159	field : field_name data_type field_qualifier(s?) reference_definition(?)
160	{
7c44825c	161	$return = {
	162	supertype => 'field',
	163	name => $item{'field_name'},
	164	data_type => $item{'data_type'}{'type'},
	165	size => $item{'data_type'}{'size'},
7c44825c	166	constraints => $item{'reference_definition(?)'},
7c44825c	167	}
	168	}
	169	\| <error>
	170
	171	field_qualifier : not_null
	172	{
	173	$return = {
	174	null => $item{'not_null'},
	175	}
	176	}
	177
	178	field_qualifier : default_val
	179	{
	180	$return = {
	181	default => $item{'default_val'},
	182	}
	183	}
	184
	185	field_qualifier : auto_inc
	186	{
	187	$return = {
	188	is_auto_inc => $item{'auto_inc'},
	189	}
	190	}
	191
	192	field_qualifier : primary_key
	193	{
	194	$return = {
	195	is_primary_key => $item{'primary_key'},
	196	}
	197	}
	198
	199	field_qualifier : unsigned
	200	{
	201	$return = {
	202	is_unsigned => $item{'unsigned'},
	203	}
	204	}
	205
	206	field_qualifier : /character set/i WORD
	207	{
	208	$return = {
	209	character_set => $item[2],
	210	}
	211	}
	212
100684f3	213	reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?)
7c44825c	214	{
	215	$return = {
	216	type => 'foreign_key',
	217	reference_table => $item[2],
	218	reference_fields => $item[3][0],
	219	match_type => $item[4][0],
100684f3	220	on_delete => $item[5][0],
100684f3	221	on_update => $item[6][0],
7c44825c	222	}
	223	}
	224
	225	match_type : /match full/i { 'full' }
	226	\|
	227	/match partial/i { 'partial' }
	228
100684f3	229	on_delete : /on delete/i reference_option
7c44825c	230	{ $item[2] }
7c44825c	231
100684f3	232	on_update : /on update/i reference_option
7c44825c	233	{ $item[2] }
	234
	235	reference_option: /restrict/i \|
	236	/cascade/i \|
	237	/set null/i \|
	238	/no action/i \|
	239	/set default/i
	240	{ $item[1] }
	241
	242	index : normal_index
	243	\| fulltext_index
	244	\| <error>
	245
	246	table_name : NAME
	247
	248	field_name : NAME
	249
	250	index_name : NAME
	251
	252	data_type : access_data_type parens_value_list(s?) type_qualifier(s?)
	253	{
	254	$return = {
	255	type => $item[1],
	256	size => $item[2][0],
	257	qualifiers => $item[3],
	258	}
	259	}
	260
	261	access_data_type : /long integer/i { $return = 'Long Integer' }
	262	\| /text/i { $return = 'Text' }
	263	\| /datetime (\(short\))?/i { $return = 'DateTime' }
	264	\| /boolean/i { $return = 'Boolean' }
	265	\| WORD
	266
	267	parens_field_list : '(' field_name(s /,/) ')'
	268	{ $item[2] }
	269
	270	parens_value_list : '(' VALUE(s /,/) ')'
	271	{ $item[2] }
	272
	273	type_qualifier : /(BINARY\|UNSIGNED\|ZEROFILL)/i
	274	{ lc $item[1] }
	275
	276	field_type : WORD
	277
	278	create_index : /create/i /index/i
	279
	280	not_null : /not/i /null/i { $return = 0 }
	281
	282	unsigned : /unsigned/i { $return = 0 }
	283
	284	default_val : /default/i /'(?:.?\\').?'\|(?:')?[\w\d:.-](?:')?/
	285	{
	286	$item[2] =~ s/^\s'\|'\s$//g;
	287	$return = $item[2];
	288	}
	289
	290	auto_inc : /auto_increment/i { 1 }
	291
	292	primary_key : /primary/i /key/i { 1 }
	293
	294	constraint : primary_key_def
	295	\| unique_key_def
	296	\| foreign_key_def
297	\| <error>
298
299	foreign_key_def : foreign_key_def_begin parens_field_list reference_definition
300	{
301	$return = {
302	supertype => 'constraint',
303	type => 'foreign_key',
304	name => $item[1],
305	fields => $item[2],
306	%{ $item{'reference_definition'} },
307	}
308	}
309
310	foreign_key_def_begin : /constraint/i /foreign key/i
311	{ $return = '' }
312	\|
313	/constraint/i WORD /foreign key/i
314	{ $return = $item[2] }
315	\|
316	/foreign key/i
317	{ $return = '' }
318
319	primary_key_def : primary_key index_name(?) '(' name_with_opt_paren(s /,/) ')'
320	{
321	$return = {
322	supertype => 'constraint',
323	name => $item{'index_name(?)'}[0],
324	type => 'primary_key',
325	fields => $item[4],
326	};
327	}
328
329	unique_key_def : UNIQUE KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
330	{
331	$return = {
332	supertype => 'constraint',
333	name => $item{'index_name(?)'}[0],
334	type => 'unique',
335	fields => $item[5],
336	}
337	}
338
339	normal_index : KEY index_name(?) '(' name_with_opt_paren(s /,/) ')'
340	{
341	$return = {
342	supertype => 'index',
343	type => 'normal',
344	name => $item{'index_name(?)'}[0],
345	fields => $item[4],
346	}
347	}
348
349	fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
350	{
351	$return = {
352	supertype => 'index',
353	type => 'fulltext',
354	name => $item{'index_name(?)'}[0],
355	fields => $item[5],
356	}
357	}
358
359	name_with_opt_paren : NAME parens_value_list(s?)
360	{ $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] }
361
362	UNIQUE : /unique/i { 1 }
363
364	KEY : /key/i \| /index/i
365
366	table_option : WORD /\s=\s/ WORD
367	{
368	$return = { $item[1] => $item[3] };
369	}
370
371	CREATE : /create/i
372
373	TEMPORARY : /temporary/i
374
375	TABLE : /table/i
376
377	WORD : /\w+/
378
379	DIGITS : /\d+/
380
381	COMMA : ','
382
383	NAME : "`" /\w+/ "`"
384	{ $item[2] }
385	\| /\w+/
386	{ $item[1] }
387
388	VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
389	{ $item[1] }
390	\| /'.*?'/
391	{
392	# remove leading/trailing quotes
393	my $val = $item[1];
394	$val =~ s/^['"]\|['"]$//g;
395	$return = $val;
396	}
397	\| /NULL/
398	{ 'NULL' }
399
400	!;
401
402	# -------------------------------------------------------------------
403	sub parse {
404	my ( $translator, $data ) = @_;
405	my $parser = Parse::RecDescent->new($GRAMMAR);
406
407	local $::RD_TRACE = $translator->trace ? 1 : undef;
408	local $DEBUG = $translator->debug;
409
410	unless (defined $parser) {
411	return $translator->error("Error instantiating Parse::RecDescent ".
412	"instance: Bad grammer");
413	}
414
415	my $result = $parser->startrule($data);
416	return $translator->error( "Parse failed." ) unless defined $result;
417	warn Dumper( $result ) if $DEBUG;
418
419	my $schema = $translator->schema;
420	my @tables = sort {
421	$result->{ $a }->{'order'} <=> $result->{ $b }->{'order'}
422	} keys %{ $result };
423
424	for my $table_name ( @tables ) {
425	my $tdata = $result->{ $table_name };
426	my $table = $schema->add_table(
427	name => $tdata->{'table_name'},
428	) or die $schema->error;
429
430	$table->comments( $tdata->{'comments'} );
431
432	my @fields = sort {
433	$tdata->{'fields'}->{$a}->{'order'}
434	<=>
435	$tdata->{'fields'}->{$b}->{'order'}
436	} keys %{ $tdata->{'fields'} };
437
438	for my $fname ( @fields ) {
439	my $fdata = $tdata->{'fields'}{ $fname };
440	my $field = $table->add_field(
441	name => $fdata->{'name'},
442	data_type => $fdata->{'data_type'},
443	size => $fdata->{'size'},
444	default_value => $fdata->{'default'},
445	is_auto_increment => $fdata->{'is_auto_inc'},
446	is_nullable => $fdata->{'null'},
447	comments => $fdata->{'comments'},
448	) or die $table->error;
449
450	$table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
7c44825c	451	}
	452
	453	for my $idata ( @{ $tdata->{'indices'} \|\| [] } ) {
	454	my $index = $table->add_index(
	455	name => $idata->{'name'},
	456	type => uc $idata->{'type'},
	457	fields => $idata->{'fields'},
	458	) or die $table->error;
	459	}
7c44825c	460	}
	461
	462	return 1;
	463	}
	464
	465	1;
	466
	467	# -------------------------------------------------------------------
	468	# Where man is not nature is barren.
	469	# William Blake
	470	# -------------------------------------------------------------------
	471
	472	=pod
	473
	474	=head1 AUTHOR
	475
	476	Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
	477
	478	=head1 SEE ALSO
	479
	480	perl(1), Parse::RecDescent, SQL::Translator::Schema.
	481
	482	=cut