package SQL::Translator::Parser::Sybase;
# -------------------------------------------------------------------
-# $Id: Sybase.pm,v 1.4 2003-01-27 17:04:46 dlc Exp $
+# $Id: Sybase.pm,v 1.5 2003-08-19 21:05:47 kycl4rk Exp $
# -------------------------------------------------------------------
# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
# darren chamberlain <darren@cpan.org>,
=cut
-my $grammar = q{
-
- { our ( %tables ) }
-
- file : statement(s) { \%tables }
-# { print "statements: ", join("\n", @{$item[1]}), "\n" }
-# | <error>
-
- statement : create
- | junk
-# {
-# print "statement: ", join("\n", @{$item[1]}), "\n";
-# $return = @{$item[1]};
-# print "statement: '", $item[1], "'\n";
-# $return = $item[1];
-# }
- | <error>
-
- junk : comment
- | use
- | setuser
- | if
- | print
- | else
- | begin
- | end
- | grant
- | exec
- | GO
-
- GO : /go/
-# { print "GO: ", $item[1], "\n" }
-
- use : /use/i /.*/
-# { print "USE: ", $item[2], "\n" }
-
- setuser : /setuser/i /.*/
-# { print "SETUSER: ", $item[2], "\n" }
-
- if : /if/i /.*/
-# { print "IF: ", $item[2], "\n" }
-
- print : /\s*/ /print/i /.*/
-# { print "PRINT: ", $item[3], "\n" }
-
- else : /else/i /.*/
-# { print "ELSE: ", $item[2], "\n" }
-
- begin : /begin/i
-# { print "BEGIN\n" }
-
- end : /end/i
-# { print "END\n" }
-
- grant : /grant/i /.*/
-# { print "GRANT: ", $item[2], "\n" }
-
- exec : /exec/i /.*/
-# { print "EXEC: ", $item[2], "\n" }
-
- comment : /^\s*\/\*.*\*\//m
-# { print "COMMENT: ", $item[-1], "\n" }
-
- create : create_table table_name '(' field(s /,/) ')' lock(?)
- {
-# print "TABLE $item[2]: ",
-# join(', ', map{$_->{'name'}}@{$item[4]}), "\n";
- my $i = 0;
- for my $line ( @{ $item[4] } ) {
- if ( $line->{'type'} eq 'field' ) {
- my $field_name = $line->{'name'};
- $tables{ $item{'table_name'} }
- {'fields'}{$field_name} =
- { %$line, order => $i };
- $i++;
-
- if ( $line->{'is_primary_key'} ) {
- push
- @{ $tables{ $item{'table_name'} }{'indices'} },
- {
- type => 'primary_key',
- fields => [ $field_name ],
- };
- }
- }
- else {
- push @{ $tables{ $item{'table_name'} }{'indices'} },
- $line;
- }
- $tables{ $item{'table_name'} }{'type'} =
- $item{'table_type'}[0];
- }
- }
- | <error>
-
- blank : /\s*/
-
- field : field_name data_type null(?)
- {
- $return = {
- type => 'field',
- name => $item{'field_name'},
- data_type => $item{'data_type'}{'type'},
- size => $item{'data_type'}{'size'},
- null => $item{'null'}[0],
-# default => $item{'default_val'}[0],
-# is_auto_inc => $item{'auto_inc'}[0],
-# is_primary_key => $item{'primary_key'}[0],
- }
- }
- | <error>
-
- index : primary_key_index
- | unique_index
- | normal_index
-
- table_name : WORD '.' WORD
- { $return = $item[3] }
-
- field_name : WORD
-
- index_name : WORD
-
- data_type : WORD field_size(?)
- {
- $return = {
- type => $item[1],
- size => $item[2][0]
- }
- }
+use strict;
- lock : /lock/i /datarows/i
+use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
+$VERSION = sprintf "%d.%02d", q$Revision: 1.5 $ =~ /(\d+)\.(\d+)/;
+$DEBUG = 0 unless defined $DEBUG;
- field_type : WORD
+use Data::Dumper;
+use Parse::RecDescent;
+use Exporter;
+use base qw(Exporter);
- field_size : '(' num_range ')' { $item{'num_range'} }
+@EXPORT_OK = qw(parse);
- num_range : DIGITS ',' DIGITS
- { $return = $item[1].','.$item[3] }
- | DIGITS
- { $return = $item[1] }
+# Enable warnings within the Parse::RecDescent module.
+$::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{
- create_table : /create/i /table/i
+{
+ our ( %tables, @table_comments );
+}
- null : /not/i /null/i
- { $return = 0 }
- | /null/i
- { $return = 1 }
+startrule : statement(s) eofile { \%tables }
- default_val : /default/i /(?:')?[\w\d.-]*(?:')?/ { $item[2]=~s/'//g; $return=$item[2] }
+eofile : /^\Z/
- auto_inc : /auto_increment/i { 1 }
+statement : create_table
+ | create_procedure
+ | create_index
+ | create_constraint
+ | comment
+ | use
+ | setuser
+ | if
+ | print
+ | grant
+ | exec
+ | <error>
- primary_key : /primary/i /key/i { 1 }
+use : /use/i WORD GO
+ { @table_comments = () }
- primary_key_index : primary_key index_name(?) '(' field_name(s /,/) ')'
- {
- $return = {
- name => $item{'index_name'}[0],
- type => 'primary_key',
- fields => $item[4],
- }
- }
+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
+
+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 : comment_start comment_middle comment_end
+ {
+ my $comment = $item[2];
+ $comment =~ s/^\s*|\s*$//mg;
+ $comment =~ s/^\**\s*//mg;
+ push @table_comments, $comment;
+ }
- normal_index : key index_name(?) '(' field_name(s /,/) ')'
- {
- $return = {
- name => $item{'index_name'}[0],
- type => 'normal',
- fields => $item[4],
- }
+comment_start : /^\s*\/\*/
+
+comment_end : /\s*\*\//
+
+comment_middle : m{([^*]+|\*(?!/))*}
+
+#
+# Create table.
+#
+create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) GO
+ {
+ my $table_owner = $item[3]{'owner'};
+ my $table_name = $item[3]{'name'};
+
+ if ( @table_comments ) {
+ $tables{ $table_name }{'comments'} = [ @table_comments ];
+ @table_comments = ();
}
- unique_index : /unique/i key index_name(?) '(' field_name(s /,/) ')'
- {
- $return = {
- name => $item{'index_name'}[0],
- type => 'unique',
- fields => $item[5],
- }
+ $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;
+ }
}
+ }
+
+create_constraint : /create/i constraint
+ {
+ @table_comments = ();
+ push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
+ }
+
+create_index : /create/i index
+ {
+ @table_comments = ();
+ push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
+ }
+
+create_procedure : /create/i /procedure/i procedure_body GO
+ {
+ @table_comments = ();
+ }
+
+procedure_body : not_go(s)
+
+not_go : /((?!go).)*/
+
+create_def : field
+ | index
+ | constraint
+
+blank : /\s*/
+
+field : field_name data_type nullable(?)
+ {
+ $return = {
+ supertype => 'field',
+ name => $item{'field_name'},
+ data_type => $item{'data_type'}{'type'},
+ size => $item{'data_type'}{'size'},
+ nullable => $item[3][0],
+# default => $item{'default_val'}[0],
+# is_auto_inc => $item{'auto_inc'}[0],
+# is_primary_key => $item{'primary_key'}[0],
+ }
+ }
+
+constraint : primary_key_constraint
+ | unique_constraint
+
+field_name : WORD
+
+index_name : WORD
+
+table_name : WORD
+
+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] }
+
- key : /key/i
- | /index/i
+nullable : /not/i /null/i
+ { $return = 0 }
+ | /null/i
+ { $return = 1 }
- table_type : /TYPE=/i /\w+/ { $item[2] }
+default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
+ { $item[2]=~s/'//g; $return=$item[2] }
- WORD : /[\w#]+/
+auto_inc : /auto_increment/i { 1 }
- DIGITS : /\d+/
+primary_key_constraint : /primary/i /key/i index_name(?) parens_field_list
+ {
+ $return = {
+ supertype => 'constraint',
+ name => $item{'index_name'}[0],
+ type => 'primary_key',
+ fields => $item[4],
+ }
+ }
- COMMA : ','
+unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
+ {
+ $return = {
+ supertype => 'constraint',
+ type => 'unique',
+ clustered => $item[2][0],
+ name => $item[4][0],
+ table => $item[5][0],
+ fields => $item[6],
+ }
+ }
+
+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
+ {
+ $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(?)
+ { $return = { owner => $item[2], name => $item[4] } }
+ | WORD
+ { $return = { name => $item[2] } }
+
+GO : /^go/i
+
+NAME : QUOTE(?) /\w+/ QUOTE(?)
+ { $item[2] }
+
+WORD : /[\w#]+/
+
+DIGITS : /\d+/
+
+COMMA : ','
+
+QUOTE : /'/
};
+# -------------------------------------------------------------------
+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 => $tdata->{'name'} )
+ or die "Can't create table '$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_do'},
+ on_update => $cdata->{'on_update_do'},
+ ) or die $table->error;
+ }
+ }
+
+ return 1;
+}
+
1;
-#-----------------------------------------------------
+# -------------------------------------------------------------------
# Every hero becomes a bore at last.
# Ralph Waldo Emerson
-#-----------------------------------------------------
+# -------------------------------------------------------------------
=pod
=head1 AUTHOR
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
=head1 SEE ALSO
projects / dbsrgits/SQL-Translator.git / commitdiff