1 files changed, 65 insertions, 0 deletions
diff --git a/eg/hstrip b/eg/hstrip
new file mode 100755
index 0000000..b94df3c
--- /dev/null
+++ b/eg/hstrip
@@ -0,0 +1,65 @@
+#!/usr/bin/perl -w
+
+# This script cleans up an HTML document
+
+use strict;
+use HTML::Parser ();
+
+# configure these values
+my @ignore_attr =
+    qw(bgcolor background color face style link alink vlink text
+       onblur onchange onclick ondblclick onfocus onkeydown onkeyup onload
+       onmousedown onmousemove onmouseout onmouseover onmouseup
+       onreset onselect onunload
+      );
+my @ignore_tags = qw(font big small b i);
+my @ignore_elements = qw(script style);
+
+# make it easier to look up attributes
+my %ignore_attr = map { $_ => 1} @ignore_attr;
+
+sub tag
+{
+    my($pos, $text) = @_;
+    if (@$pos >= 4) {
+	# kill some attributes
+	my($k_offset, $k_len, $v_offset, $v_len) = @{$pos}[-4 .. -1];
+	my $next_attr = $v_offset ? $v_offset + $v_len : $k_offset + $k_len;
+	my $edited;
+	while (@$pos >= 4) {
+	    ($k_offset, $k_len, $v_offset, $v_len) = splice @$pos, -4;
+	    if ($ignore_attr{lc substr($text, $k_offset, $k_len)}) {
+		substr($text, $k_offset, $next_attr - $k_offset) = "";
+		$edited++;
+	    }
+	    $next_attr = $k_offset;
+	}
+	# if we killed all attributed, kill any extra whitespace too
+	$text =~ s/^(<\w+)\s+>$/$1>/ if $edited;
+    }
+    print $text;
+}
+
+sub decl
+{
+    my $type = shift;
+    print shift if $type eq "doctype";
+}
+
+sub text
+{
+    print shift;
+}
+
+HTML::Parser->new(api_version   => 3,
+		  start_h       => [\&tag,   "tokenpos, text"],
+                  process_h     => ["", ""],
+		  comment_h     => ["", ""],
+                  declaration_h => [\&decl,   "tagname, text"],
+                  default_h     => [\&text,   "text"],
+
+		  ignore_tags   => \@ignore_tags,
+		  ignore_elements => \@ignore_elements,
+                 )
+    ->parse_file(shift) || die "Can't open file: $!\n";
+