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

package SQL::Translator::Parser::SQLServer;

=head1 NAME

SQL::Translator::Parser::SQLServer - parser for SQL Server

=head1 SYNOPSIS

  use SQL::Translator::Parser::SQLServer;

=head1 DESCRIPTION

Adapted from Parser::Sybase and mostly parses the output of
Producer::SQLServer.  The parsing is by no means complete and
should probably be considered a work in progress.

=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);

$::RD_ERRORS = 1;
$::RD_WARN   = 1;
$::RD_HINT   = 1;

$GRAMMAR = q{

{
    my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );

    sub _err {
      my $max_lines = 5;
      my @up_to_N_lines = split (/\n/, $_[1], $max_lines + 1);
      die sprintf ("Unable to parse line %d:\n%s\n",
        $_[0],
        join "\n", (map { "'$_'" } @up_to_N_lines[0..$max_lines - 1 ]), @up_to_N_lines > $max_lines ? '...' : ()
      );
    }

}

startrule : statement(s) eofile
   {
      return {
         tables     => \%tables,
         procedures => \%procedures,
         views      => \%views,
      }
   }

eofile : /^\Z/

statement : create_table
    | create_procedure
    | create_view
    | create_index
    | create_constraint
    | comment
    | disable_constraints
    | drop
    | use
    | setuser
    | if
    | print
    | grant
    | exec
    | /^\Z/ | { _err ($thisline, $text) }

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

setuser : /setuser/i NAME GO

if : /if/i object_not_null begin if_command end GO

if_command : grant
    | create_index
    | create_constraint

object_not_null : /object_id/i '(' ident ')' /is not null/i

field_not_null : /where/i field_name /is \s+ not \s+ null/ix

print : /\s*/ /print/i /.*/

else : /else/i /.*/

begin : /begin/i

end : /end/i

grant : /grant/i /[^\n]*/

exec : exec_statement(s) GO

exec_statement : /exec/i /[^\n]+/

comment : /^\s*(?:#|-{2}).*\n/
    {
        my $comment =  $item[1];
        $comment    =~ s/^\s*(#|--)\s*//;
        $comment    =~ s/\s*$//;
        $return     = $comment;
        push @table_comments, $comment;
    }

comment : comment_start comment_middle comment_end
    {
        my $comment = $item[2];
        $comment =~ s/^\s*|\s*$//mg;
        $comment =~ s/^\**\s*//mg;
        push @table_comments, $comment;
    }

comment_start : m#^\s*\/\*#

comment_end : m#\s*\*\/#

comment_middle : m{([^*]+|\*(?!/))*}

drop : if_exists(?) /drop/i tbl_drop END_STATEMENT

tbl_drop : /table/i ident

if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'

#
# Create table.
#
create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
    {
        my $table_owner = $item[3]{'owner'};
        my $table_name  = $item[3]{'name'};

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

        $tables{ $table_name }{'order'}  = ++$table_order;
        $tables{ $table_name }{'name'}   = $table_name;
        $tables{ $table_name }{'owner'}  = $table_owner;
        $tables{ $table_name }{'system'} = $item[7];

        my $i = 0;
        for my $def ( @{ $item[5] } ) {
            if ( $def->{'supertype'} eq 'field' ) {
                my $field_name = $def->{'name'};
                $tables{ $table_name }{'fields'}{ $field_name } =
                    { %$def, order => $i };
                $i++;

                if ( $def->{'is_primary_key'} ) {
                    push @{ $tables{ $table_name }{'constraints'} }, {
                        type   => 'primary_key',
                        fields => [ $field_name ],
                    };
                }
            }
            elsif ( $def->{'supertype'} eq 'constraint' ) {
                push @{ $tables{ $table_name }{'constraints'} }, $def;
            }
            else {
                push @{ $tables{ $table_name }{'indices'} }, $def;
            }
        }
    }

disable_constraints : if_exists(?) /alter/i /table/i ident /nocheck/i /constraint/i /all/i END_STATEMENT

# this is for the normal case 
create_constraint : /create/i constraint END_STATEMENT
    {
        @table_comments = ();
        push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
    }

# and this is for the BEGIN/END case
create_constraint : /create/i constraint
    {
        @table_comments = ();
        push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
    }


create_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
    {
        push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
    }


create_index : /create/i index
    {
        @table_comments = ();
        push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
    }

create_procedure : /create/i PROCEDURE WORD not_go GO
    {
        @table_comments = ();
        my $proc_name = $item[3];
        my $owner = '';
        my $sql = "$item[1] $item[2] $proc_name $item[4]";

        $procedures{ $proc_name }{'order'}  = ++$proc_order;
        $procedures{ $proc_name }{'name'}   = $proc_name;
        $procedures{ $proc_name }{'owner'}  = $owner;
        $procedures{ $proc_name }{'sql'}    = $sql;
    }

create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
    {
        @table_comments = ();
        my $proc_name = $item[6];
        my $owner = $item[4];
        my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";

        $procedures{ $proc_name }{'order'}  = ++$proc_order;
        $procedures{ $proc_name }{'name'}   = $proc_name;
        $procedures{ $proc_name }{'owner'}  = $owner;
        $procedures{ $proc_name }{'sql'}    = $sql;
    }

PROCEDURE : /procedure/i
   | /function/i

create_view : /create/i /view/i WORD not_go GO
    {
        @table_comments = ();
        my $view_name = $item[3];
        my $sql = "$item[1] $item[2] $item[3] $item[4]";

        $views{ $view_name }{'order'}  = ++$view_order;
        $views{ $view_name }{'name'}   = $view_name;
        $views{ $view_name }{'sql'}    = $sql;
    }

not_go : /((?!\bgo\b).)*/is

create_def : constraint
    | index
    | field

blank : /\s*/

field : field_name data_type field_qualifier(s?)
    {
        my %qualifiers  = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] };
        my $nullable = defined $qualifiers{'nullable'}
                   ? $qualifiers{'nullable'} : 1;
        $return = {
            supertype      => 'field',
            name           => $item{'field_name'},
            data_type      => $item{'data_type'}{'type'},
            size           => $item{'data_type'}{'size'},
            nullable       => $nullable,
            default        => $qualifiers{'default_val'},
            is_auto_inc    => $qualifiers{'is_auto_inc'},
#            is_primary_key => $item{'primary_key'}[0],
        }
    }

field_qualifier : nullable
    {
        $return = {
             nullable => $item{'nullable'},
        }
    }

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

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

constraint : primary_key_constraint
    | foreign_key_constraint
    | unique_constraint

field_name : WORD
   { $return = $item[1] }
   | LQUOTE WORD RQUOTE
   { $return = $item[2] }

index_name : WORD
   { $return = $item[1] }
   | LQUOTE WORD RQUOTE
   { $return = $item[2] }

table_name : WORD
 { $return = $item[1] }
 | LQUOTE WORD RQUOTE
 { $return = $item[2] }

data_type : WORD field_size(?)
    {
        $return = {
            type => $item[1],
            size => $item[2][0]
        }
    }

lock : /lock/i /datarows/i

field_type : WORD

field_size : '(' num_range ')' { $item{'num_range'} }

num_range : DIGITS ',' DIGITS
    { $return = $item[1].','.$item[3] }
               | DIGITS
    { $return = $item[1] }


nullable : /not/i /null/i
    { $return = 0 }
    | /null/i
    { $return = 1 }

default_val : /default/i /null/i
    { $return = 'null' }
   | /default/i /'[^']*'/
    { $item[2]=~ s/'//g; $return = $item[2] }
   | /default/i WORD
    { $return = $item[2] }

auto_inc : /identity/i { 1 }

primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
    {
        $return = {
            supertype => 'constraint',
            name      => $item[2][0],
            type      => 'primary_key',
            fields    => $item[5],
        }
    }

foreign_key_constraint : /constraint/i index_name(?) /foreign/i /key/i parens_field_list /references/i table_name parens_field_list(?) on_delete(?) on_update(?)
    {
        $return = {
            supertype        => 'constraint',
            name             => $item[2][0],
            type             => 'foreign_key',
            fields           => $item[5],
            reference_table  => $item[7],
            reference_fields => $item[8][0],
            on_delete        => $item[9][0],
            on_update        => $item[10][0],
        }
    }

unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
    {
        $return = {
            supertype => 'constraint',
            type      => 'unique',
            name      => $item[2][0],
            fields    => $item[4],
        }
    }

unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list field_not_null(?)
    {
        $return = {
            supertype => 'constraint',
            type      => 'unique',
            clustered => $item[2][0],
            name      => $item[4][0],
            table     => $item[5][0],
            fields    => $item[6],
        }
    }

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

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

reference_option: /cascade/i
    { $item[1] }
    | /no action/i
    { $item[1] }

clustered : /clustered/i
    { $return = 1 }
    | /nonclustered/i
    { $return = 0 }

INDEX : /index/i

on_table : /on/i table_name
    { $return = $item[2] }

on_system : /on/i /system/i
    { $return = 1 }

index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list END_STATEMENT
    {
        $return = {
            supertype => 'index',
            type      => 'normal',
            clustered => $item[1][0],
            name      => $item[3][0],
            table     => $item[4][0],
            fields    => $item[5],
        }
    }

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

ident : QUOTE WORD '.' WORD QUOTE | LQUOTE WORD '.' WORD RQUOTE
    { $return = { owner => $item[2], name => $item[4] } }
    | LQUOTE WORD RQUOTE '.' LQUOTE WORD RQUOTE
    { $return = { owner => $item[2], name => $item[6] } }
    | LQUOTE WORD RQUOTE
    { $return = { name  => $item[2] } }
    | WORD '.' WORD
    { $return = { owner => $item[1], name => $item[3] } }
    | WORD
    { $return = { name  => $item[1] } }

END_STATEMENT : ';'
   | GO

GO : /^go/i

NAME : QUOTE(?) /\w+/ QUOTE(?)
    { $item[2] }

WORD : /[\w#]+/

DIGITS : /\d+/

COMMA : ','

QUOTE : /'/

LQUOTE : '['

RQUOTE : ']'

};

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->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
    } keys %{ $result->{tables} };

    for my $table_name ( @tables ) {
        my $tdata = $result->{tables}->{ $table_name };
        my $table = $schema->add_table( name => $tdata->{'name'} )
                    or die "Can't create table '$table_name': ", $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->{'nullable'},
                comments          => $fdata->{'comments'},
            ) or die $table->error;

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

            for my $qual ( qw[ binary unsigned zerofill list ] ) {
                if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
                    next if ref $val eq 'ARRAY' && !@$val;
                    $field->extra( $qual, $val );
                }
            }

            if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
                my %extra = $field->extra;
                my $longest = 0;
                for my $len ( map { length } @{ $extra{'list'} || [] } ) {
                    $longest = $len if $len > $longest;
                }
                $field->size( $longest ) if $longest;
            }

            for my $cdata ( @{ $fdata->{'constraints'} } ) {
                next unless $cdata->{'type'} eq 'foreign_key';
                $cdata->{'fields'} ||= [ $field->name ];
                push @{ $tdata->{'constraints'} }, $cdata;
            }
        }

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

        for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
            my $constraint       =  $table->add_constraint(
                name             => $cdata->{'name'},
                type             => $cdata->{'type'},
                fields           => $cdata->{'fields'},
                reference_table  => $cdata->{'reference_table'},
                reference_fields => $cdata->{'reference_fields'},
                match_type       => $cdata->{'match_type'} || '',
                on_delete        => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
                on_update        => $cdata->{'on_update'} || $cdata->{'on_update_do'},
            ) or die $table->error;
        }
    }

    my @procedures = sort {
        $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
    } keys %{ $result->{procedures} };
    for my $proc_name (@procedures) {
      $schema->add_procedure(
         name  => $proc_name,
         owner => $result->{procedures}->{$proc_name}->{owner},
         sql   => $result->{procedures}->{$proc_name}->{sql},
      );
    }

    my @views = sort {
        $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
    } keys %{ $result->{views} };
    for my $view_name (keys %{ $result->{views} }) {
      $schema->add_view(
         name => $view_name,
         sql  => $result->{views}->{$view_name}->{sql},
      );
    }

    return 1;
}

1;

# -------------------------------------------------------------------
# Every hero becomes a bore at last.
# Ralph Waldo Emerson
# -------------------------------------------------------------------

=pod

=head1 AUTHOR

Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
Sybase parser, I just tweaked it for SQLServer. Thanks.

=head1 SEE ALSO

SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.

=cut
Commit	Line	Data
be4469ab	1	package SQL::Translator::Parser::SQLServer;
be4469ab	2
be4469ab	3	=head1 NAME
	4
	5	SQL::Translator::Parser::SQLServer - parser for SQL Server
	6
	7	=head1 SYNOPSIS
	8
	9	use SQL::Translator::Parser::SQLServer;
	10
	11	=head1 DESCRIPTION
	12
	13	Adapted from Parser::Sybase and mostly parses the output of
	14	Producer::SQLServer. The parsing is by no means complete and
	15	should probably be considered a work in progress.
	16
	17	=cut
	18
	19	use strict;
	20
da06ac74	21	use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
11ad2df9	22	$VERSION = '1.59';
be4469ab	23	$DEBUG = 0 unless defined $DEBUG;
	24
	25	use Data::Dumper;
	26	use Parse::RecDescent;
	27	use Exporter;
	28	use base qw(Exporter);
	29
	30	@EXPORT_OK = qw(parse);
	31
	32	$::RD_ERRORS = 1;
	33	$::RD_WARN = 1;
	34	$::RD_HINT = 1;
	35
	36	$GRAMMAR = q{
	37
e5f65c59	38	{
ff3dd529	39	my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );
28224573	40
	41	sub _err {
	42	my $max_lines = 5;
	43	my @up_to_N_lines = split (/\n/, $_[1], $max_lines + 1);
	44	die sprintf ("Unable to parse line %d:\n%s\n",
	45	$_[0],
	46	join "\n", (map { "'$_'" } @up_to_N_lines[0..$max_lines - 1 ]), @up_to_N_lines > $max_lines ? '...' : ()
	47	);
	48	}
	49
be4469ab	50	}
be4469ab	51
ff3dd529	52	startrule : statement(s) eofile
e5f65c59	53	{
	54	return {
	55	tables => \%tables,
	56	procedures => \%procedures,
	57	views => \%views,
	58	}
	59	}
be4469ab	60
	61	eofile : /^\Z/
	62
	63	statement : create_table
	64	\| create_procedure
ff3dd529	65	\| create_view
be4469ab	66	\| create_index
	67	\| create_constraint
	68	\| comment
028386aa	69	\| disable_constraints
e2fb9ad3	70	\| drop
be4469ab	71	\| use
	72	\| setuser
	73	\| if
	74	\| print
	75	\| grant
	76	\| exec
28224573	77	\| /^\Z/ \| { _err ($thisline, $text) }
be4469ab	78
e5f65c59	79	use : /use/i WORD GO
be4469ab	80	{ @table_comments = () }
	81
	82	setuser : /setuser/i NAME GO
	83
	84	if : /if/i object_not_null begin if_command end GO
	85
	86	if_command : grant
	87	\| create_index
	88	\| create_constraint
	89
	90	object_not_null : /object_id/i '(' ident ')' /is not null/i
	91
028386aa	92	field_not_null : /where/i field_name /is \s+ not \s+ null/ix
028386aa	93
be4469ab	94	print : /\s/ /print/i /./
	95
	96	else : /else/i /.*/
	97
	98	begin : /begin/i
	99
	100	end : /end/i
	101
	102	grant : /grant/i /[^\n]*/
	103
	104	exec : exec_statement(s) GO
	105
	106	exec_statement : /exec/i /[^\n]+/
	107
e5f65c59	108	comment : /^\s(?:#\|-{2}).\n/
e5f65c59	109	{
be4469ab	110	my $comment = $item[1];
	111	$comment =~ s/^\s(#\|--)\s//;
	112	$comment =~ s/\s*$//;
	113	$return = $comment;
	114	push @table_comments, $comment;
	115	}
	116
	117	comment : comment_start comment_middle comment_end
e5f65c59	118	{
be4469ab	119	my $comment = $item[2];
	120	$comment =~ s/^\s\|\s$//mg;
	121	$comment =~ s/^\*\s//mg;
	122	push @table_comments, $comment;
	123	}
	124
	125	comment_start : m#^\s\/\#
	126
	127	comment_end : m#\s\\/#
	128
	129	comment_middle : m{([^]+\|\(?!/))*}
	130
e2fb9ad3	131	drop : if_exists(?) /drop/i tbl_drop END_STATEMENT
e2fb9ad3	132
028386aa	133	tbl_drop : /table/i ident
e2fb9ad3	134
	135	if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'
	136
be4469ab	137	#
	138	# Create table.
	139	#
ff3dd529	140	create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
e5f65c59	141	{
be4469ab	142	my $table_owner = $item[3]{'owner'};
	143	my $table_name = $item[3]{'name'};
	144
	145	if ( @table_comments ) {
	146	$tables{ $table_name }{'comments'} = [ @table_comments ];
	147	@table_comments = ();
	148	}
	149
	150	$tables{ $table_name }{'order'} = ++$table_order;
	151	$tables{ $table_name }{'name'} = $table_name;
	152	$tables{ $table_name }{'owner'} = $table_owner;
	153	$tables{ $table_name }{'system'} = $item[7];
	154
	155	my $i = 0;
	156	for my $def ( @{ $item[5] } ) {
	157	if ( $def->{'supertype'} eq 'field' ) {
	158	my $field_name = $def->{'name'};
e5f65c59	159	$tables{ $table_name }{'fields'}{ $field_name } =
be4469ab	160	{ %$def, order => $i };
be4469ab	161	$i++;
e5f65c59	162
be4469ab	163	if ( $def->{'is_primary_key'} ) {
	164	push @{ $tables{ $table_name }{'constraints'} }, {
	165	type => 'primary_key',
	166	fields => [ $field_name ],
	167	};
	168	}
	169	}
	170	elsif ( $def->{'supertype'} eq 'constraint' ) {
	171	push @{ $tables{ $table_name }{'constraints'} }, $def;
	172	}
	173	else {
	174	push @{ $tables{ $table_name }{'indices'} }, $def;
	175	}
	176	}
	177	}
	178
028386aa	179	disable_constraints : if_exists(?) /alter/i /table/i ident /nocheck/i /constraint/i /all/i END_STATEMENT
	180
	181	# this is for the normal case
	182	create_constraint : /create/i constraint END_STATEMENT
	183	{
	184	@table_comments = ();
	185	push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
	186	}
	187
	188	# and this is for the BEGIN/END case
f9a5ee79	189	create_constraint : /create/i constraint
be4469ab	190	{
	191	@table_comments = ();
	192	push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
	193	}
	194
028386aa	195
f9a5ee79	196	create_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
	197	{
	198	push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
	199	}
	200
028386aa	201
be4469ab	202	create_index : /create/i index
	203	{
	204	@table_comments = ();
	205	push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
	206	}
	207
ff3dd529	208	create_procedure : /create/i PROCEDURE WORD not_go GO
be4469ab	209	{
be4469ab	210	@table_comments = ();
ff3dd529	211	my $proc_name = $item[3];
	212	my $owner = '';
	213	my $sql = "$item[1] $item[2] $proc_name $item[4]";
e5f65c59	214
ff3dd529	215	$procedures{ $proc_name }{'order'} = ++$proc_order;
	216	$procedures{ $proc_name }{'name'} = $proc_name;
	217	$procedures{ $proc_name }{'owner'} = $owner;
	218	$procedures{ $proc_name }{'sql'} = $sql;
be4469ab	219	}
be4469ab	220
ff3dd529	221	create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
	222	{
	223	@table_comments = ();
	224	my $proc_name = $item[6];
	225	my $owner = $item[4];
	226	my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
e5f65c59	227
ff3dd529	228	$procedures{ $proc_name }{'order'} = ++$proc_order;
	229	$procedures{ $proc_name }{'name'} = $proc_name;
	230	$procedures{ $proc_name }{'owner'} = $owner;
	231	$procedures{ $proc_name }{'sql'} = $sql;
	232	}
	233
	234	PROCEDURE : /procedure/i
e5f65c59	235	\| /function/i
ff3dd529	236
ff3dd529	237	create_view : /create/i /view/i WORD not_go GO
	238	{
	239	@table_comments = ();
	240	my $view_name = $item[3];
	241	my $sql = "$item[1] $item[2] $item[3] $item[4]";
e5f65c59	242
ff3dd529	243	$views{ $view_name }{'order'} = ++$view_order;
	244	$views{ $view_name }{'name'} = $view_name;
	245	$views{ $view_name }{'sql'} = $sql;
	246	}
	247
ff3dd529	248	not_go : /((?!\bgo\b).)*/is
be4469ab	249
	250	create_def : constraint
	251	\| index
	252	\| field
	253
	254	blank : /\s*/
	255
	256	field : field_name data_type field_qualifier(s?)
e5f65c59	257	{
be4469ab	258	my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} \|\| [] };
e5f65c59	259	my $nullable = defined $qualifiers{'nullable'}
be4469ab	260	? $qualifiers{'nullable'} : 1;
e5f65c59	261	$return = {
be4469ab	262	supertype => 'field',
e5f65c59	263	name => $item{'field_name'},
be4469ab	264	data_type => $item{'data_type'}{'type'},
be4469ab	265	size => $item{'data_type'}{'size'},
e5f65c59	266	nullable => $nullable,
	267	default => $qualifiers{'default_val'},
	268	is_auto_inc => $qualifiers{'is_auto_inc'},
	269	# is_primary_key => $item{'primary_key'}[0],
	270	}
be4469ab	271	}
	272
	273	field_qualifier : nullable
e5f65c59	274	{
e5f65c59	275	$return = {
be4469ab	276	nullable => $item{'nullable'},
e5f65c59	277	}
be4469ab	278	}
	279
	280	field_qualifier : default_val
e5f65c59	281	{
e5f65c59	282	$return = {
be4469ab	283	default_val => $item{'default_val'},
e5f65c59	284	}
be4469ab	285	}
	286
	287	field_qualifier : auto_inc
e5f65c59	288	{
e5f65c59	289	$return = {
be4469ab	290	is_auto_inc => $item{'auto_inc'},
e5f65c59	291	}
be4469ab	292	}
	293
	294	constraint : primary_key_constraint
	295	\| foreign_key_constraint
	296	\| unique_constraint
	297
	298	field_name : WORD
028386aa	299	{ $return = $item[1] }
	300	\| LQUOTE WORD RQUOTE
	301	{ $return = $item[2] }
be4469ab	302
be4469ab	303	index_name : WORD
028386aa	304	{ $return = $item[1] }
	305	\| LQUOTE WORD RQUOTE
	306	{ $return = $item[2] }
be4469ab	307
be4469ab	308	table_name : WORD
028386aa	309	{ $return = $item[1] }
	310	\| LQUOTE WORD RQUOTE
	311	{ $return = $item[2] }
be4469ab	312
e5f65c59	313	data_type : WORD field_size(?)
	314	{
	315	$return = {
	316	type => $item[1],
be4469ab	317	size => $item[2][0]
e5f65c59	318	}
be4469ab	319	}
	320
	321	lock : /lock/i /datarows/i
	322
	323	field_type : WORD
	324
	325	field_size : '(' num_range ')' { $item{'num_range'} }
	326
	327	num_range : DIGITS ',' DIGITS
	328	{ $return = $item[1].','.$item[3] }
	329	\| DIGITS
	330	{ $return = $item[1] }
	331
	332
	333	nullable : /not/i /null/i
	334	{ $return = 0 }
	335	\| /null/i
	336	{ $return = 1 }
	337
2a8fb466	338	default_val : /default/i /null/i
2a8fb466	339	{ $return = 'null' }
e5f65c59	340	\| /default/i /'[^']*'/
be4469ab	341	{ $item[2]=~ s/'//g; $return = $item[2] }
e5f65c59	342	\| /default/i WORD
06baeb21	343	{ $return = $item[2] }
be4469ab	344
	345	auto_inc : /identity/i { 1 }
	346
	347	primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
e5f65c59	348	{
e5f65c59	349	$return = {
be4469ab	350	supertype => 'constraint',
	351	name => $item[2][0],
	352	type => 'primary_key',
	353	fields => $item[5],
e5f65c59	354	}
be4469ab	355	}
be4469ab	356
100684f3	357	foreign_key_constraint : /constraint/i index_name(?) /foreign/i /key/i parens_field_list /references/i table_name parens_field_list(?) on_delete(?) on_update(?)
be4469ab	358	{
e5f65c59	359	$return = {
be4469ab	360	supertype => 'constraint',
	361	name => $item[2][0],
	362	type => 'foreign_key',
	363	fields => $item[5],
	364	reference_table => $item[7],
e5f65c59	365	reference_fields => $item[8][0],
100684f3	366	on_delete => $item[9][0],
100684f3	367	on_update => $item[10][0],
e5f65c59	368	}
be4469ab	369	}
be4469ab	370
e2fb9ad3	371	unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
e2fb9ad3	372	{
e5f65c59	373	$return = {
e2fb9ad3	374	supertype => 'constraint',
	375	type => 'unique',
	376	name => $item[2][0],
	377	fields => $item[4],
	378	}
	379	}
	380
028386aa	381	unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list field_not_null(?)
e5f65c59	382	{
e5f65c59	383	$return = {
be4469ab	384	supertype => 'constraint',
	385	type => 'unique',
	386	clustered => $item[2][0],
	387	name => $item[4][0],
	388	table => $item[5][0],
	389	fields => $item[6],
e5f65c59	390	}
be4469ab	391	}
be4469ab	392
100684f3	393	on_delete : /on delete/i reference_option
be4469ab	394	{ $item[2] }
be4469ab	395
100684f3	396	on_update : /on update/i reference_option
be4469ab	397	{ $item[2] }
be4469ab	398
ff3dd529	399	reference_option: /cascade/i
	400	{ $item[1] }
	401	\| /no action/i
	402	{ $item[1] }
be4469ab	403
	404	clustered : /clustered/i
	405	{ $return = 1 }
	406	\| /nonclustered/i
	407	{ $return = 0 }
	408
	409	INDEX : /index/i
	410
	411	on_table : /on/i table_name
	412	{ $return = $item[2] }
	413
	414	on_system : /on/i /system/i
	415	{ $return = 1 }
	416
e2fb9ad3	417	index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list END_STATEMENT
e5f65c59	418	{
e5f65c59	419	$return = {
be4469ab	420	supertype => 'index',
	421	type => 'normal',
	422	clustered => $item[1][0],
	423	name => $item[3][0],
	424	table => $item[4][0],
	425	fields => $item[5],
e5f65c59	426	}
be4469ab	427	}
	428
	429	parens_field_list : '(' field_name(s /,/) ')'
	430	{ $item[2] }
	431
028386aa	432	ident : QUOTE WORD '.' WORD QUOTE \| LQUOTE WORD '.' WORD RQUOTE
be4469ab	433	{ $return = { owner => $item[2], name => $item[4] } }
028386aa	434	\| LQUOTE WORD RQUOTE '.' LQUOTE WORD RQUOTE
	435	{ $return = { owner => $item[2], name => $item[6] } }
	436	\| LQUOTE WORD RQUOTE
	437	{ $return = { name => $item[2] } }
	438	\| WORD '.' WORD
	439	{ $return = { owner => $item[1], name => $item[3] } }
be4469ab	440	\| WORD
	441	{ $return = { name => $item[1] } }
	442
ff3dd529	443	END_STATEMENT : ';'
e5f65c59	444	\| GO
ff3dd529	445
be4469ab	446	GO : /^go/i
	447
	448	NAME : QUOTE(?) /\w+/ QUOTE(?)
	449	{ $item[2] }
	450
	451	WORD : /[\w#]+/
	452
	453	DIGITS : /\d+/
	454
	455	COMMA : ','
	456
	457	QUOTE : /'/
	458
028386aa	459	LQUOTE : '['
	460
	461	RQUOTE : ']'
	462
be4469ab	463	};
be4469ab	464
be4469ab	465	sub parse {
	466	my ( $translator, $data ) = @_;
	467	my $parser = Parse::RecDescent->new($GRAMMAR);
	468
	469	local $::RD_TRACE = $translator->trace ? 1 : undef;
	470	local $DEBUG = $translator->debug;
	471
	472	unless (defined $parser) {
	473	return $translator->error("Error instantiating Parse::RecDescent ".
	474	"instance: Bad grammer");
	475	}
	476
	477	my $result = $parser->startrule($data);
	478	return $translator->error( "Parse failed." ) unless defined $result;
	479	warn Dumper( $result ) if $DEBUG;
	480
	481	my $schema = $translator->schema;
e5f65c59	482	my @tables = sort {
ff3dd529	483	$result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
ff3dd529	484	} keys %{ $result->{tables} };
be4469ab	485
be4469ab	486	for my $table_name ( @tables ) {
ff3dd529	487	my $tdata = $result->{tables}->{ $table_name };
e5f65c59	488	my $table = $schema->add_table( name => $tdata->{'name'} )
be4469ab	489	or die "Can't create table '$table_name': ", $schema->error;
	490
	491	$table->comments( $tdata->{'comments'} );
	492
e5f65c59	493	my @fields = sort {
e5f65c59	494	$tdata->{'fields'}->{$a}->{'order'}
be4469ab	495	<=>
	496	$tdata->{'fields'}->{$b}->{'order'}
	497	} keys %{ $tdata->{'fields'} };
	498
	499	for my $fname ( @fields ) {
	500	my $fdata = $tdata->{'fields'}{ $fname };
	501	my $field = $table->add_field(
	502	name => $fdata->{'name'},
	503	data_type => $fdata->{'data_type'},
	504	size => $fdata->{'size'},
	505	default_value => $fdata->{'default'},
	506	is_auto_increment => $fdata->{'is_auto_inc'},
	507	is_nullable => $fdata->{'nullable'},
	508	comments => $fdata->{'comments'},
	509	) or die $table->error;
	510
	511	$table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
	512
	513	for my $qual ( qw[ binary unsigned zerofill list ] ) {
	514	if ( my $val = $fdata->{ $qual } \|\| $fdata->{ uc $qual } ) {
	515	next if ref $val eq 'ARRAY' && !@$val;
	516	$field->extra( $qual, $val );
	517	}
	518	}
	519
	520	if ( $field->data_type =~ /(set\|enum)/i && !$field->size ) {
	521	my %extra = $field->extra;
	522	my $longest = 0;
	523	for my $len ( map { length } @{ $extra{'list'} \|\| [] } ) {
	524	$longest = $len if $len > $longest;
	525	}
	526	$field->size( $longest ) if $longest;
	527	}
	528
	529	for my $cdata ( @{ $fdata->{'constraints'} } ) {
	530	next unless $cdata->{'type'} eq 'foreign_key';
	531	$cdata->{'fields'} \|\|= [ $field->name ];
	532	push @{ $tdata->{'constraints'} }, $cdata;
	533	}
	534	}
	535
	536	for my $idata ( @{ $tdata->{'indices'} \|\| [] } ) {
	537	my $index = $table->add_index(
	538	name => $idata->{'name'},
	539	type => uc $idata->{'type'},
	540	fields => $idata->{'fields'},
	541	) or die $table->error;
	542	}
	543
	544	for my $cdata ( @{ $tdata->{'constraints'} \|\| [] } ) {
	545	my $constraint = $table->add_constraint(
	546	name => $cdata->{'name'},
	547	type => $cdata->{'type'},
	548	fields => $cdata->{'fields'},
	549	reference_table => $cdata->{'reference_table'},
	550	reference_fields => $cdata->{'reference_fields'},
	551	match_type => $cdata->{'match_type'} \|\| '',
100684f3	552	on_delete => $cdata->{'on_delete'} \|\| $cdata->{'on_delete_do'},
100684f3	553	on_update => $cdata->{'on_update'} \|\| $cdata->{'on_update_do'},
be4469ab	554	) or die $table->error;
	555	}
	556	}
e5f65c59	557
e5f65c59	558	my @procedures = sort {
ff3dd529	559	$result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
	560	} keys %{ $result->{procedures} };
	561	for my $proc_name (@procedures) {
e5f65c59	562	$schema->add_procedure(
	563	name => $proc_name,
	564	owner => $result->{procedures}->{$proc_name}->{owner},
	565	sql => $result->{procedures}->{$proc_name}->{sql},
	566	);
ff3dd529	567	}
ff3dd529	568
e5f65c59	569	my @views = sort {
ff3dd529	570	$result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
	571	} keys %{ $result->{views} };
	572	for my $view_name (keys %{ $result->{views} }) {
e5f65c59	573	$schema->add_view(
	574	name => $view_name,
	575	sql => $result->{views}->{$view_name}->{sql},
	576	);
ff3dd529	577	}
be4469ab	578
	579	return 1;
	580	}
	581
	582	1;
	583
	584	# -------------------------------------------------------------------
	585	# Every hero becomes a bore at last.
	586	# Ralph Waldo Emerson
	587	# -------------------------------------------------------------------
	588
	589	=pod
	590
	591	=head1 AUTHOR
	592
	593	Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
	594	Sybase parser, I just tweaked it for SQLServer. Thanks.
	595
	596	=head1 SEE ALSO
	597
	598	SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.
	599
	600	=cut