1 files changed, 56 insertions, 0 deletions
diff --git a/contrib/seg/seg-validate.pl b/contrib/seg/seg-validate.pl
new file mode 100755
index 0000000..3d27492
--- /dev/null
+++ b/contrib/seg/seg-validate.pl
@@ -0,0 +1,56 @@
+#!/usr/bin/perl
+
+# Copyright (c) 2021-2022, PostgreSQL Global Development Group
+
+use strict;
+use warnings;
+
+my $integer = '[+-]?[0-9]+';
+my $real    = '[+-]?[0-9]+\.[0-9]+';
+
+my $RANGE     = '(\.\.)(\.)?';
+my $PLUMIN    = q(\'\+\-\');
+my $FLOAT     = "(($integer)|($real))([eE]($integer))?";
+my $EXTENSION = '<|>|~';
+
+my $boundary  = "($EXTENSION)?$FLOAT";
+my $deviation = $FLOAT;
+
+my $rule_1 = $boundary . $PLUMIN . $deviation;
+my $rule_2 = $boundary . $RANGE . $boundary;
+my $rule_3 = $boundary . $RANGE;
+my $rule_4 = $RANGE . $boundary;
+my $rule_5 = $boundary;
+
+
+print "$rule_5\n";
+while (<>)
+{
+
+	#  s/ +//g;
+	if (/^($rule_1)$/)
+	{
+		print;
+	}
+	elsif (/^($rule_2)$/)
+	{
+		print;
+	}
+	elsif (/^($rule_3)$/)
+	{
+		print;
+	}
+	elsif (/^($rule_4)$/)
+	{
+		print;
+	}
+	elsif (/^($rule_5)$/)
+	{
+		print;
+	}
+	else
+	{
+		print STDERR "error in $_\n";
+	}
+
+}