1 package SQL::Translator::Parser::Sybase;
3 # -------------------------------------------------------------------
4 # $Id: Sybase.pm,v 1.8 2003-11-05 23:27:09 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: 1.8 $ =~ /(\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, $table_order );
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{ $table_name }{'order'} = ++$table_order;
137 $tables{ $table_name }{'name'} = $table_name;
138 $tables{ $table_name }{'owner'} = $table_owner;
139 $tables{ $table_name }{'system'} = $item[7];
142 for my $def ( @{ $item[5] } ) {
143 if ( $def->{'supertype'} eq 'field' ) {
144 my $field_name = $def->{'name'};
145 $tables{ $table_name }{'fields'}{ $field_name } =
146 { %$def, order => $i };
149 if ( $def->{'is_primary_key'} ) {
150 push @{ $tables{ $table_name }{'constraints'} }, {
151 type => 'primary_key',
152 fields => [ $field_name ],
156 elsif ( $def->{'supertype'} eq 'constraint' ) {
157 push @{ $tables{ $table_name }{'constraints'} }, $def;
160 push @{ $tables{ $table_name }{'indices'} }, $def;
165 create_constraint : /create/i constraint
167 @table_comments = ();
168 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
171 create_index : /create/i index
173 @table_comments = ();
174 push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
177 create_procedure : /create/i /procedure/i procedure_body GO
179 @table_comments = ();
182 procedure_body : not_go(s)
184 not_go : /((?!go).)*/
192 field : field_name data_type nullable(?)
195 supertype => 'field',
196 name => $item{'field_name'},
197 data_type => $item{'data_type'}{'type'},
198 size => $item{'data_type'}{'size'},
199 nullable => $item[3][0],
200 # default => $item{'default_val'}[0],
201 # is_auto_inc => $item{'auto_inc'}[0],
202 # is_primary_key => $item{'primary_key'}[0],
206 constraint : primary_key_constraint
215 data_type : WORD field_size(?)
223 lock : /lock/i /datarows/i
227 field_size : '(' num_range ')' { $item{'num_range'} }
229 num_range : DIGITS ',' DIGITS
230 { $return = $item[1].','.$item[3] }
232 { $return = $item[1] }
235 nullable : /not/i /null/i
240 default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
241 { $item[2]=~s/'//g; $return=$item[2] }
243 auto_inc : /auto_increment/i { 1 }
245 primary_key_constraint : /primary/i /key/i index_name(?) parens_field_list
248 supertype => 'constraint',
249 name => $item{'index_name'}[0],
250 type => 'primary_key',
255 unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
258 supertype => 'constraint',
260 clustered => $item[2][0],
262 table => $item[5][0],
267 clustered : /clustered/i
274 on_table : /on/i table_name
275 { $return = $item[2] }
277 on_system : /on/i /system/i
280 index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list
283 supertype => 'index',
285 clustered => $item[1][0],
287 table => $item[4][0],
292 parens_field_list : '(' field_name(s /,/) ')'
295 ident : QUOTE(?) WORD '.' WORD QUOTE(?)
296 { $return = { owner => $item[2], name => $item[4] } }
298 { $return = { name => $item[2] } }
302 NAME : QUOTE(?) /\w+/ QUOTE(?)
315 # -------------------------------------------------------------------
317 my ( $translator, $data ) = @_;
318 my $parser = Parse::RecDescent->new($GRAMMAR);
320 local $::RD_TRACE = $translator->trace ? 1 : undef;
321 local $DEBUG = $translator->debug;
323 unless (defined $parser) {
324 return $translator->error("Error instantiating Parse::RecDescent ".
325 "instance: Bad grammer");
328 my $result = $parser->startrule($data);
329 return $translator->error( "Parse failed." ) unless defined $result;
330 warn Dumper( $result ) if $DEBUG;
332 my $schema = $translator->schema;
334 $result->{ $a }->{'order'} <=> $result->{ $b }->{'order'}
337 for my $table_name ( @tables ) {
338 my $tdata = $result->{ $table_name };
339 my $table = $schema->add_table( name => $tdata->{'name'} )
340 or die "Can't create table '$table_name': ", $schema->error;
342 $table->comments( $tdata->{'comments'} );
345 $tdata->{'fields'}->{$a}->{'order'}
347 $tdata->{'fields'}->{$b}->{'order'}
348 } keys %{ $tdata->{'fields'} };
350 for my $fname ( @fields ) {
351 my $fdata = $tdata->{'fields'}{ $fname };
352 my $field = $table->add_field(
353 name => $fdata->{'name'},
354 data_type => $fdata->{'data_type'},
355 size => $fdata->{'size'},
356 default_value => $fdata->{'default'},
357 is_auto_increment => $fdata->{'is_auto_inc'},
358 is_nullable => $fdata->{'nullable'},
359 comments => $fdata->{'comments'},
360 ) or die $table->error;
362 $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
364 for my $qual ( qw[ binary unsigned zerofill list ] ) {
365 if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
366 next if ref $val eq 'ARRAY' && !@$val;
367 $field->extra( $qual, $val );
371 if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
372 my %extra = $field->extra;
374 for my $len ( map { length } @{ $extra{'list'} || [] } ) {
375 $longest = $len if $len > $longest;
377 $field->size( $longest ) if $longest;
380 for my $cdata ( @{ $fdata->{'constraints'} } ) {
381 next unless $cdata->{'type'} eq 'foreign_key';
382 $cdata->{'fields'} ||= [ $field->name ];
383 push @{ $tdata->{'constraints'} }, $cdata;
387 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
388 my $index = $table->add_index(
389 name => $idata->{'name'},
390 type => uc $idata->{'type'},
391 fields => $idata->{'fields'},
392 ) or die $table->error;
395 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
396 my $constraint = $table->add_constraint(
397 name => $cdata->{'name'},
398 type => $cdata->{'type'},
399 fields => $cdata->{'fields'},
400 reference_table => $cdata->{'reference_table'},
401 reference_fields => $cdata->{'reference_fields'},
402 match_type => $cdata->{'match_type'} || '',
403 on_delete => $cdata->{'on_delete_do'},
404 on_update => $cdata->{'on_update_do'},
405 ) or die $table->error;
414 # -------------------------------------------------------------------
415 # Every hero becomes a bore at last.
416 # Ralph Waldo Emerson
417 # -------------------------------------------------------------------
423 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
427 SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.