1 package SQL::Translator::Parser::Sybase;
3 # -------------------------------------------------------------------
4 # $Id: Sybase.pm,v 1.7 2003-10-15 18:35:09 kycl4rk Exp $
5 # -------------------------------------------------------------------
6 # Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
7 # darren chamberlain <darren@cpan.org>,
8 # Chris Mungall <cjm@fruitfly.org>
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation; version 2.
14 # This program is distributed in the hope that it will be useful, but
15 # WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 # General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write to the Free Software
21 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
23 # -------------------------------------------------------------------
27 SQL::Translator::Parser::Sybase - parser for Sybase
31 use SQL::Translator::Parser::Sybase;
35 Mostly parses the output of "dbschema.pl," a Perl script freely
36 available from http://www.midsomer.org. The parsing is not complete,
37 however, and you would probably have much better luck using the
38 DBI-Sybase parser included with SQL::Translator.
44 use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
45 $VERSION = sprintf "%d.%02d", q$Revision: 1.7 $ =~ /(\d+)\.(\d+)/;
46 $DEBUG = 0 unless defined $DEBUG;
49 use Parse::RecDescent;
51 use base qw(Exporter);
53 @EXPORT_OK = qw(parse);
62 my ( %tables, @table_comments );
65 startrule : statement(s) eofile { \%tables }
69 statement : create_table
83 { @table_comments = () }
85 setuser : /setuser/i NAME GO
87 if : /if/i object_not_null begin if_command end GO
93 object_not_null : /object_id/i '(' ident ')' /is not null/i
95 print : /\s*/ /print/i /.*/
103 grant : /grant/i /[^\n]*/
105 exec : exec_statement(s) GO
107 exec_statement : /exec/i /[^\n]+/
109 comment : comment_start comment_middle comment_end
111 my $comment = $item[2];
112 $comment =~ s/^\s*|\s*$//mg;
113 $comment =~ s/^\**\s*//mg;
114 push @table_comments, $comment;
117 comment_start : /^\s*\/\*/
119 comment_end : /\s*\*\//
121 comment_middle : m{([^*]+|\*(?!/))*}
126 create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) GO
128 my $table_owner = $item[3]{'owner'};
129 my $table_name = $item[3]{'name'};
131 if ( @table_comments ) {
132 $tables{ $table_name }{'comments'} = [ @table_comments ];
133 @table_comments = ();
136 $tables{ $table_name }{'name'} = $table_name;
137 $tables{ $table_name }{'owner'} = $table_owner;
138 $tables{ $table_name }{'system'} = $item[7];
141 for my $def ( @{ $item[5] } ) {
142 if ( $def->{'supertype'} eq 'field' ) {
143 my $field_name = $def->{'name'};
144 $tables{ $table_name }{'fields'}{ $field_name } =
145 { %$def, order => $i };
148 if ( $def->{'is_primary_key'} ) {
149 push @{ $tables{ $table_name }{'constraints'} }, {
150 type => 'primary_key',
151 fields => [ $field_name ],
155 elsif ( $def->{'supertype'} eq 'constraint' ) {
156 push @{ $tables{ $table_name }{'constraints'} }, $def;
159 push @{ $tables{ $table_name }{'indices'} }, $def;
164 create_constraint : /create/i constraint
166 @table_comments = ();
167 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
170 create_index : /create/i index
172 @table_comments = ();
173 push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
176 create_procedure : /create/i /procedure/i procedure_body GO
178 @table_comments = ();
181 procedure_body : not_go(s)
183 not_go : /((?!go).)*/
191 field : field_name data_type nullable(?)
194 supertype => 'field',
195 name => $item{'field_name'},
196 data_type => $item{'data_type'}{'type'},
197 size => $item{'data_type'}{'size'},
198 nullable => $item[3][0],
199 # default => $item{'default_val'}[0],
200 # is_auto_inc => $item{'auto_inc'}[0],
201 # is_primary_key => $item{'primary_key'}[0],
205 constraint : primary_key_constraint
214 data_type : WORD field_size(?)
222 lock : /lock/i /datarows/i
226 field_size : '(' num_range ')' { $item{'num_range'} }
228 num_range : DIGITS ',' DIGITS
229 { $return = $item[1].','.$item[3] }
231 { $return = $item[1] }
234 nullable : /not/i /null/i
239 default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
240 { $item[2]=~s/'//g; $return=$item[2] }
242 auto_inc : /auto_increment/i { 1 }
244 primary_key_constraint : /primary/i /key/i index_name(?) parens_field_list
247 supertype => 'constraint',
248 name => $item{'index_name'}[0],
249 type => 'primary_key',
254 unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
257 supertype => 'constraint',
259 clustered => $item[2][0],
261 table => $item[5][0],
266 clustered : /clustered/i
273 on_table : /on/i table_name
274 { $return = $item[2] }
276 on_system : /on/i /system/i
279 index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list
282 supertype => 'index',
284 clustered => $item[1][0],
286 table => $item[4][0],
291 parens_field_list : '(' field_name(s /,/) ')'
294 ident : QUOTE(?) WORD '.' WORD QUOTE(?)
295 { $return = { owner => $item[2], name => $item[4] } }
297 { $return = { name => $item[2] } }
301 NAME : QUOTE(?) /\w+/ QUOTE(?)
314 # -------------------------------------------------------------------
316 my ( $translator, $data ) = @_;
317 my $parser = Parse::RecDescent->new($GRAMMAR);
319 local $::RD_TRACE = $translator->trace ? 1 : undef;
320 local $DEBUG = $translator->debug;
322 unless (defined $parser) {
323 return $translator->error("Error instantiating Parse::RecDescent ".
324 "instance: Bad grammer");
327 my $result = $parser->startrule($data);
328 return $translator->error( "Parse failed." ) unless defined $result;
329 warn Dumper( $result ) if $DEBUG;
331 my $schema = $translator->schema;
333 $result->{ $a }->{'order'} <=> $result->{ $b }->{'order'}
336 for my $table_name ( @tables ) {
337 my $tdata = $result->{ $table_name };
338 my $table = $schema->add_table( name => $tdata->{'name'} )
339 or die "Can't create table '$table_name': ", $schema->error;
341 $table->comments( $tdata->{'comments'} );
344 $tdata->{'fields'}->{$a}->{'order'}
346 $tdata->{'fields'}->{$b}->{'order'}
347 } keys %{ $tdata->{'fields'} };
349 for my $fname ( @fields ) {
350 my $fdata = $tdata->{'fields'}{ $fname };
351 my $field = $table->add_field(
352 name => $fdata->{'name'},
353 data_type => $fdata->{'data_type'},
354 size => $fdata->{'size'},
355 default_value => $fdata->{'default'},
356 is_auto_increment => $fdata->{'is_auto_inc'},
357 is_nullable => $fdata->{'nullable'},
358 comments => $fdata->{'comments'},
359 ) or die $table->error;
361 $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
363 for my $qual ( qw[ binary unsigned zerofill list ] ) {
364 if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
365 next if ref $val eq 'ARRAY' && !@$val;
366 $field->extra( $qual, $val );
370 if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
371 my %extra = $field->extra;
373 for my $len ( map { length } @{ $extra{'list'} || [] } ) {
374 $longest = $len if $len > $longest;
376 $field->size( $longest ) if $longest;
379 for my $cdata ( @{ $fdata->{'constraints'} } ) {
380 next unless $cdata->{'type'} eq 'foreign_key';
381 $cdata->{'fields'} ||= [ $field->name ];
382 push @{ $tdata->{'constraints'} }, $cdata;
386 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
387 my $index = $table->add_index(
388 name => $idata->{'name'},
389 type => uc $idata->{'type'},
390 fields => $idata->{'fields'},
391 ) or die $table->error;
394 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
395 my $constraint = $table->add_constraint(
396 name => $cdata->{'name'},
397 type => $cdata->{'type'},
398 fields => $cdata->{'fields'},
399 reference_table => $cdata->{'reference_table'},
400 reference_fields => $cdata->{'reference_fields'},
401 match_type => $cdata->{'match_type'} || '',
402 on_delete => $cdata->{'on_delete_do'},
403 on_update => $cdata->{'on_update_do'},
404 ) or die $table->error;
413 # -------------------------------------------------------------------
414 # Every hero becomes a bore at last.
415 # Ralph Waldo Emerson
416 # -------------------------------------------------------------------
422 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
426 SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.