Added new version of ecpg's parser test script which was written by Andy...

Added new version of ecpg's parser test script which was written by Andy Colson <andy@squeakycode.net>.

src/interfaces/ecpg/preproc/check_rules.pl

@@ -6,130 +6,176 @@
 # Copyright (c) 2009-2011, PostgreSQL Global Development Group
 #
 # Written by Michael Meskes <meskes@postgresql.org>
+#            Andy Colson <andy@squeakycode.net>   
 #
 # Placed under the same license as PostgreSQL.
 #
+# Command line:  [-v] [path only to ecpg.addons] [full filename of gram.y]
+#  -v enables verbose mode... show's some stats... thought it might be interesting
+#
+# This script loads rule names from gram.y and sets $found{rule} = 1 for each.
+# Then it checks to make sure each rule in ecpg.addons was found in gram.y
 
-if (@ARGV) {
-        $path = $ARGV[0];
-        $parser = $ARGV[1];
-}
+use strict;
+use warnings;
+no warnings 'uninitialized';
 
-$[ = 1;                 # set array base to 1
+my $verbose = 0;
+if ($ARGV[0] eq '-v')
+{
+	$verbose = shift;
+}
+my $path = shift || '.';
+my $parser = shift || '../../../backend/parser/gram.y';
+
+my $filename = $path . "/ecpg.addons";
+if ($verbose)
+{
+	print "parser: $parser\n";
+	print "addons: $filename\n";
+}
 
-if ($path eq '') { $path = "."; }
-$filename = $path . "/ecpg.addons";
+my %replace_line = (
+	'ExecuteStmtEXECUTEnameexecute_param_clause' =>
+		'EXECUTE prepared_name execute_param_clause execute_rest',
 
-if ($parser eq '') { $parser = "../../../backend/parser/gram.y"; }
+	'ExecuteStmtCREATEOptTempTABLEcreate_as_targetASEXECUTEnameexecute_param_clause' =>
+		'CREATE OptTemp TABLE create_as_target AS EXECUTE prepared_name execute_param_clause',
 
-$replace_line{'ExecuteStmtEXECUTEnameexecute_param_clause'} = 'EXECUTE prepared_name execute_param_clause execute_rest';
-$replace_line{'ExecuteStmtCREATEOptTempTABLEcreate_as_targetASEXECUTEnameexecute_param_clause'} = 'CREATE OptTemp TABLE create_as_target AS EXECUTE prepared_name execute_param_clause';
-$replace_line{'PrepareStmtPREPAREnameprep_type_clauseASPreparableStmt'} = 'PREPARE prepared_name prep_type_clause AS PreparableStmt';
+	'PrepareStmtPREPAREnameprep_type_clauseASPreparableStmt' =>
+		'PREPARE prepared_name prep_type_clause AS PreparableStmt'
+);
 
-$block = '';
-$ret = 0;
-$yaccmod = 0;
-$brace_indent = 0;
+my $block        = '';
+my $yaccmode     = 0;
+my $brace_indent = 0;
+my (@arr, %found);
+my $comment = 0;
+my $non_term_id = '';
+my $cc = 0;
 
 open GRAM, $parser or die $!;
-while (<GRAM>) {
-	chomp;      # strip record separator
+while (<GRAM>) 
+{
+	if (/^%%/) 
+	{
+		$yaccmode++;
+	}
 
-	if (/^%%/) {
-        	$yaccmode++;
+	if ( $yaccmode != 1 ) 
+	{
+		next;
 	}
 
-	if ($yaccmode != 1) {
-	        next;
-    	}
+	chomp;    # strip record separator
 
-	$S = $_;
-	$prec = 0;
+	next if ($_ eq '');
 
 	# Make sure any braces are split
-	$S =~ s/{/ { /g;
-	$S =~ s/}/ } /g;
+	s/{/ { /g;
+	s/}/ } /g;
+
 	# Any comments are split
-	$S =~ s#[/][*]# /* #g;
-	$S =~ s#[*][/]# */ #g;
+	s|\/\*| /* |g;
+	s|\*\/| */ |g;
 
 	# Now split the line into individual fields
-	$n = (@arr = split(' ', $S));
+	my $n = ( @arr = split( ' ' ) );
 
 	# Go through each field in turn
-	for ($fieldIndexer = 1; $fieldIndexer <= $n; $fieldIndexer++) {
-		if ($arr[$fieldIndexer] eq '*/' && $comment) {
-		    $comment = 0;
-		    next;
+	for ( my $fieldIndexer = 0 ; $fieldIndexer < $n ; $fieldIndexer++ ) 
+	{
+		if ( $arr[$fieldIndexer] eq '*/' && $comment ) 
+		{
+			$comment = 0;
+			next;
 		}
-		elsif ($comment) {
-		    next;
+		elsif ($comment) 
+		{
+			next;
 		}
-		elsif ($arr[$fieldIndexer] eq '/*') {
-		    # start of a multiline comment
-		    $comment = 1;
-		    next;
+		elsif ( $arr[$fieldIndexer] eq '/*' ) 
+		{
+			# start of a multiline comment
+			$comment = 1;
+			next;
 		}
-		elsif ($arr[$fieldIndexer] eq '//') {
-		    next;
+		elsif ( $arr[$fieldIndexer] eq '//' ) 
+		{
+			next;
 		}
-		elsif ($arr[$fieldIndexer] eq '}') {
-		    $brace_indent--;
-		    next;
+		elsif ( $arr[$fieldIndexer] eq '}' ) 
+		{
+			$brace_indent--;
+			next;
 		}
-		elsif ($arr[$fieldIndexer] eq '{') {
-		    $brace_indent++;
-		    next;
+		elsif ( $arr[$fieldIndexer] eq '{' ) 
+		{
+			$brace_indent++;
+			next;
 		}
 
-		if ($brace_indent > 0) {
-		    next;
+		if ( $brace_indent > 0 ) 
+		{
+			next;
 		}
 
-		if ($arr[$fieldIndexer] eq ';' || $arr[$fieldIndexer] eq '|') {
+		if ( $arr[$fieldIndexer] eq ';' || $arr[$fieldIndexer] eq '|' ) 
+		{
 			$block = $non_term_id . $block;
-			if ($replace_line{$block}) {
-				$block = &generate_block($replace_line{$block});
+			if ( $replace_line{$block} ) 
+			{
+				$block = $non_term_id . $replace_line{$block};
+				$block =~ tr/ |//d;
 			}
-			$found{$block} = 'found';
+			$found{$block} = 1;
+			$cc++;
 			$block = '';
 		}
-		elsif (($arr[$fieldIndexer] =~ '[A-Za-z0-9]+:') || $arr[$fieldIndexer + 1] eq ':') {
+		elsif ( ( $arr[$fieldIndexer] =~ '[A-Za-z0-9]+:' )
+			|| $arr[ $fieldIndexer + 1 ] eq ':' )
+		{
 			$non_term_id = $arr[$fieldIndexer];
-			$non_term_id =~ s/://g;
+			$non_term_id =~ tr/://d;
 		}
-		else  {
+		else 
+		{
 			$block = $block . $arr[$fieldIndexer];
 		}
 	}
 }
 
 close GRAM;
+if ($verbose)
+{
+	print "$cc rules loaded\n";
+}
 
-open ECPG, $filename or die $!;
-
-line: while (<ECPG>) {
-    chomp;	# strip record separator
-    @Fld = split(' ', $_, -1);
+my $ret = 0;
+$cc = 0;
 
-    if (!/^ECPG:/) {
-	next line;
-    }
+open ECPG, $filename or die $!;
+while (<ECPG>) 
+{
+	if ( !/^ECPG:/ ) 
+	{
+		next;
+	}
 
-    if ($found{$Fld[2]} ne 'found') {
-	printf $Fld[2] . " is not used for building parser!\n";
-	$ret = 1;
-    }
+	my @Fld = split( ' ', $_, 3 );
+	$cc++;
+	if ( not exists $found{ $Fld[1] } ) 
+	{
+		print $Fld[1], " is not used for building parser!\n";
+		$ret = 1;
+	}
 }
-
 close ECPG;
 
+if ($verbose)
+{
+	print "$cc rules checked\n";
+}
+
 exit $ret;
 
-sub generate_block {
-    local($line) = @_;
-    $block = $non_term_id . $line;
-    $block =~ s/ //g;
-    $s = "\\|", $block =~ s/$s//g;
-    return $block;
-}