use warnings;
use Carp;
+use List::Util;
+use Hash::Merge 'merge';
+
+Hash::Merge::specify_behavior({
+ SCALAR => {
+ SCALAR => sub { $_[1] },
+ ARRAY => sub { [ $_[0], @{$_[1]} ] },
+ HASH => sub { $_[1] },
+ },
+ ARRAY => {
+ SCALAR => sub { $_[1] },
+ ARRAY => sub { $_[1] },
+ HASH => sub { $_[1] },
+ },
+ HASH => {
+ SCALAR => sub { $_[1] },
+ ARRAY => sub { [ values %{$_[0]}, @{$_[1]} ] },
+ HASH => sub { Hash::Merge::_merge_hashes( $_[0], $_[1] ) },
+ },
+}, 'My Behavior' );
+
+use base 'Class::Accessor::Grouped';
+
+__PACKAGE__->mk_group_accessors( simple => $_ ) for qw(
+ newline indent_string indent_amount colormap indentmap fill_in_placeholders
+);
+
# Parser states for _recurse_parse()
use constant PARSE_TOP_LEVEL => 0;
use constant PARSE_IN_EXPR => 1;
# anchored to word boundaries to match the whole token).
my @expression_terminator_sql_keywords = (
'SELECT',
+ 'UPDATE',
+ 'INSERT \s+ INTO',
+ 'DELETE \s+ FROM',
'FROM',
+ 'SET',
'(?:
(?:
(?: \b (?: LEFT | RIGHT | FULL ) \s+ )?
)',
'ON',
'WHERE',
+ 'VALUES',
'EXISTS',
'GROUP \s+ BY',
'HAVING',
'INTERSECT',
'EXCEPT',
'RETURNING',
+ 'ROW_NUMBER \s* \( \s* \) \s+ OVER',
);
# These are binary operator keywords always a single LHS and RHS
sub _binary_op_keywords { @binary_op_keywords }
-sub new { bless sub {}, shift }
+my %indents = (
+ select => 0,
+ update => 0,
+ 'insert into' => 0,
+ 'delete from' => 0,
+ from => 1,
+ where => 0,
+ join => 1,
+ 'left join' => 1,
+ on => 2,
+ 'group by' => 0,
+ 'order by' => 0,
+ set => 1,
+ into => 1,
+ values => 1,
+);
+
+my %profiles = (
+ console => {
+ fill_in_placeholders => 1,
+ indent_string => ' ',
+ indent_amount => 2,
+ newline => "\n",
+ colormap => {},
+ indentmap => { %indents },
+ },
+ console_monochrome => {
+ fill_in_placeholders => 1,
+ indent_string => ' ',
+ indent_amount => 2,
+ newline => "\n",
+ colormap => {},
+ indentmap => { %indents },
+ },
+ html => {
+ fill_in_placeholders => 1,
+ indent_string => ' ',
+ indent_amount => 2,
+ newline => "<br />\n",
+ colormap => {
+ select => ['<span class="select">' , '</span>'],
+ 'insert into' => ['<span class="insert-into">' , '</span>'],
+ update => ['<span class="select">' , '</span>'],
+ 'delete from' => ['<span class="delete-from">' , '</span>'],
+ where => ['<span class="where">' , '</span>'],
+ from => ['<span class="from">' , '</span>'],
+ join => ['<span class="join">' , '</span>'],
+ on => ['<span class="on">' , '</span>'],
+ 'group by' => ['<span class="group-by">', '</span>'],
+ 'order by' => ['<span class="order-by">', '</span>'],
+ set => ['<span class="set">', '</span>'],
+ into => ['<span class="into">', '</span>'],
+ values => ['<span class="values">', '</span>'],
+ },
+ indentmap => { %indents },
+ },
+ none => {
+ colormap => {},
+ indentmap => {},
+ },
+);
+
+eval {
+ require Term::ANSIColor;
+ $profiles{console}->{colormap} = {
+ select => [Term::ANSIColor::color('red'), Term::ANSIColor::color('reset')],
+ 'insert into' => [Term::ANSIColor::color('red'), Term::ANSIColor::color('reset')],
+ update => [Term::ANSIColor::color('red'), Term::ANSIColor::color('reset')],
+ 'delete from' => [Term::ANSIColor::color('red'), Term::ANSIColor::color('reset')],
+
+ set => [Term::ANSIColor::color('cyan'), Term::ANSIColor::color('reset')],
+ from => [Term::ANSIColor::color('cyan'), Term::ANSIColor::color('reset')],
+
+ where => [Term::ANSIColor::color('green'), Term::ANSIColor::color('reset')],
+ values => [Term::ANSIColor::color('yellow'), Term::ANSIColor::color('reset')],
+
+ join => [Term::ANSIColor::color('magenta'), Term::ANSIColor::color('reset')],
+ 'left join' => [Term::ANSIColor::color('magenta'), Term::ANSIColor::color('reset')],
+ on => [Term::ANSIColor::color('blue'), Term::ANSIColor::color('reset')],
+
+ 'group by' => [Term::ANSIColor::color('yellow'), Term::ANSIColor::color('reset')],
+ 'order by' => [Term::ANSIColor::color('yellow'), Term::ANSIColor::color('reset')],
+ };
+};
+
+sub new {
+ my $class = shift;
+ my $args = shift || {};
+
+ my $profile = delete $args->{profile} || 'none';
+ my $data = merge( $profiles{$profile}, $args );
+
+ bless $data, $class
+}
sub parse {
my ($self, $s) = @_;
}
}
-use Term::ANSIColor 'color';
-
-my %ghetto_colormap = (
- select => [color('red'), color('reset')],
- where => [color('green'), color('reset')],
- from => [color('cyan'), color('reset')],
-);
-
sub format_keyword {
my ($self, $keyword) = @_;
- if (my $around = $ghetto_colormap{lc $keyword}) {
+ if (my $around = $self->colormap->{lc $keyword}) {
$keyword = "$around->[0]$keyword$around->[1]";
}
return $keyword
}
-
-my %ghetto_whitespacemap = (
- select => 0,
- where => 1,
- from => 1,
+my %starters = (
+ select => 1,
+ update => 1,
+ 'insert into' => 1,
+ 'delete from' => 1,
);
sub whitespace {
my ($self, $keyword, $depth) = @_;
my $before = '';
- my $after = '';
- if (defined $ghetto_whitespacemap{lc $keyword}) {
- $before = $self->newline . $self->indent($depth + $ghetto_whitespacemap{lc $keyword});
+ if (defined $self->indentmap->{lc $keyword}) {
+ $before = $self->newline . $self->indent($depth + $self->indentmap->{lc $keyword});
}
- return [$before, $after];
+ $before = '' if $depth == 0 and defined $starters{lc $keyword};
+ return [$before, ' '];
}
-sub newline { "\n" }
+sub indent { ($_[0]->indent_string||'') x ( ( $_[0]->indent_amount || 0 ) * $_[1] ) }
-sub indent { ' ' x $_[1] }
+sub _is_key {
+ my ($self, $tree) = @_;
+ $tree = $tree->[0] while ref $tree;
+
+ defined $tree && defined $self->indentmap->{lc $tree};
+}
+
+sub _fill_in_placeholder {
+ my ($self, $bindargs) = @_;
+
+ if ($self->fill_in_placeholders) {
+ my $val = pop @{$bindargs};
+ $val =~ s/\\/\\\\/g;
+ $val =~ s/'/\\'/g;
+ return qq('$val')
+ }
+ return '?'
+}
sub unparse {
- my ($self, $tree, $depth) = @_;
+ my ($self, $tree, $bindargs, $depth) = @_;
$depth ||= 0;
my $cdr = $tree->[1];
if (ref $car) {
- return join ('', map $self->unparse($_, $depth), @$tree);
+ return join ('', map $self->unparse($_, $bindargs, $depth), @$tree);
}
elsif ($car eq 'LITERAL') {
+ if ($cdr->[0] eq '?') {
+ return $self->_fill_in_placeholder($bindargs)
+ }
return $cdr->[0];
}
elsif ($car eq 'PAREN') {
return '(' .
join(' ',
- map $self->unparse($_, $depth + 1), @{$cdr})
- . ')';
+ map $self->unparse($_, $bindargs, $depth + 2), @{$cdr}) .
+ ($self->_is_key($cdr)?( $self->newline||'' ).$self->indent($depth + 1):'') . ') ';
}
elsif ($car eq 'OR' or $car eq 'AND' or (grep { $car =~ /^ $_ $/xi } @binary_op_keywords ) ) {
- return join (" $car ", map $self->unparse($_, $depth), @{$cdr});
+ return join (" $car ", map $self->unparse($_, $bindargs, $depth), @{$cdr});
}
else {
my ($l, $r) = @{$self->whitespace($car, $depth)};
- return sprintf "$l%s %s$r", $self->format_keyword($car), $self->unparse($cdr, $depth);
+ return sprintf "$l%s %s$r", $self->format_keyword($car), $self->unparse($cdr, $bindargs, $depth);
}
}
-sub format { my $self = shift; $self->unparse($self->parse(@_)) }
+sub format { my $self = shift; $self->unparse($self->parse($_[0]), $_[1]) }
1;
+=pod
+
+=head1 SYNOPSIS
+
+ my $sqla_tree = SQL::Abstract::Tree->new({ profile => 'console' });
+
+ print $sqla_tree->format('SELECT * FROM foo WHERE foo.a > 2');
+
+ # SELECT *
+ # FROM foo
+ # WHERE foo.a > 2
+
+=head1 METHODS
+
+=head2 new
+
+ my $sqla_tree = SQL::Abstract::Tree->new({ profile => 'console' });
+
+=head2 format
+
+ $sqlat->format('SELECT * FROM bar')
+
+Returns a formatting string based on wthe string passed in
projects / dbsrgits/SQL-Abstract.git / blobdiff