--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/code-style.pl	Tue Dec 23 14:28:28 2008 +0100
@@ -0,0 +1,195 @@
+#!/usr/bin/perl -w
+# $Id: code-style.pl,v 1.14 2007/02/15 11:40:19 dries Exp $
+
+use Pod::Usage;
+use Getopt::Long qw(GetOptions);
+Getopt::Long::Configure ("bundling");
+
+my %opt = (  "help" => 0,
+    'debug' => 0,
+  );
+
+if(!GetOptions(\%opt,
+    'help|?',
+    'debug',
+    )) {
+  pod2usage(-exitval => 1, 'verbose'=>0);
+}
+
+pod2usage(-exitval => 0, -verbose => 2) if($opt{'help'});
+
+$debug = $opt{'debug'};
+
+$comment = 0; #flag used to signal we're inside /* */
+$program = 0; #flag used to signal we're inside <?php ?>
+#read the file
+while (<>) {
+  $org=$_;
+  s/\\["']//g;
+  # please don't use nested comments for now... thanks!
+  # handles comments // style, but don't mess with http://
+  s/\/\/[^:].*//;
+  # handles comments /**/ on a single line
+  s/\/\*.*\*\///g;
+  # handles comments /**/ over several lines
+  if ($comment == 1) {
+    if (s/.*\*\///) {
+      $comment = 0;
+    }
+    else {
+      next;
+    }
+  }
+  if (s/\/\*.*//) {
+    $comment = 1;
+  }
+  if (/^\s*#/) {
+    next;
+  }
+
+  if (s/<\?php//) {
+    $program = 1;
+  }
+  if (/\?>/) {
+    $program = 0;
+  }
+
+  # enforce "bar". foo() ."bar" syntax
+  if (/^("[^"]*"|[^"])*("[^"]*")\.[^ ]/ && $program) {
+    $msg = "'\".' -> '\". '";
+  }
+  elsif (/^("[^"]*"|[^"])*("[^"]*")\s+\./ && $program) {
+    $msg = "'\" .' -> '\".'";
+  }
+  # enforce "bar". foo() ."bar" syntax
+  elsif (/^("[^"]*"|[^"])*[^ "]\.("[^"]*")/ && $program) {
+    $msg = "'.\"' -> '.\"'";
+  }
+  elsif (/^("[^"]*"|[^"])*[^ "]\.\s+("[^"]*")/ && $program) {
+    $msg = "'. \"' -> '.\"'";
+  }
+  # XHTML requires closing tag
+  elsif (/<br>/i) {
+    $msg = "'<br>' -> '<br />'";
+  }
+  elsif (/\$REQUEST_URI/i) {
+    $msg = "the use of REQUEST_URI is prone to XSS exploits and does not work on IIS; use request_uri() instead";
+  }
+  elsif (/\"REQUEST_URI\"/i) {
+    $msg = "the use of REQUEST_URI is prone to XSS exploits and does not work on IIS; use request_uri() instead";
+  }
+
+  # XHTML compatibility mode suggests a blank before /
+  # i.e. <br />
+  elsif (/<[a-z][^>]*[^ >]\/>/i) {
+    $msg = "'<foo/".">' -> '<foo />'";
+  }
+  # we write '{' on the same line, not on the next
+  elsif (/^\s*{/ && $program) {
+    $msg = "take '{' to previous line";
+  }
+  elsif (/([a-z])([A-Z])/) {
+    $msg = "no mixed case function or variable names, use lower case and _";
+  }
+  elsif (/<[\/]*[A-Z]+[^>]*>/) {
+    $msg = "XHTML demands tags to be lowercase";
+  }
+
+  # trying to recognize splitted lines
+  # there are only a few valid last characters in programming mode,
+  # only sometimes it is ( if you use if/else with a single statement
+
+  # from here on we need no more strings
+  while (s/^([^"]*)"[^"]*"/$1#/) {};
+  while (s/^([^']*)'[^']*'/$1#/) {};
+
+  # it should be 'if (' all the time
+  if (/(^|[^a-zA-Z])(if|else|elseif|while|foreach|switch|return|for)\(/) {
+    $msg = "'(' -> ' ('";
+  }
+  #elsif (/[^;{}:\s\n]\s*\n*$/ && $program && !/^[\s}]*(if|else)/) {
+  #  $msg = "don't split lines";
+  #}
+  elsif (/\}\s*else/) {
+    $msg = "'} else' -> '}\\nelse'";
+  }
+  elsif (/[^{\s\n]\s*\n*$/ && $program && /^\s*(if|else)/) {
+    $msg = "every if/else needs a { at eol";
+  }
+  elsif (/([\(\[]) / && $program) {
+    $msg = "'$1 ' -> '$1'";
+  }
+  elsif (/\S ([\)\]])/ && $program) {
+    $msg = "' $1' -> '$1'";
+  }
+  # but no brackets
+  elsif (/([a-z-A-Z_][a-zA-Z0-9_-]*)\s+\(/ && $program) {
+    if ($1 ne "switch" and $1 ne "if" and $1 ne "while" and $1 ne "foreach" and $1 ne "return" and $1 ne "for" and $1 ne "elseif") {
+      $msg = "'$1 (' -> '$1('";
+    }
+  }
+  # there should be a space before '{'
+  if (/[^ ]{/ && $program) {
+    $msg = "missing space before '{'";
+  }
+  # there should be a space after ','
+  elsif (/[,][^ \n\r]/ && $program) {
+    $msg = "missing space after ','";
+  }
+  # spaces before and after, only foreach may use $foo=>bar
+  elsif (/[^ =|\-|\+](\+|\-)[^ =>|\-|\+]/ && $program && !/foreach/) {
+    $msg = "'$1' -> ' $1 '";
+  }
+  elsif (/[^ =](\*|==|\.=|=>|=|\|\|)[^ =>]/ && $program && !/foreach/) {
+    $msg = "'$1' -> ' $1 '";
+  }
+  # ensure $bar["foo"] and $bar[$foo] and $bar[0]
+  elsif (/\[[^#][^\]]*\]/ && !/\[[0-9\$][^\]]*\]/ && !/\[\]/) {
+    $msg = "only [\"foo\"], [\$foo] or [0] is allowed";
+  }
+  # first try to find missing quotes after = in (X)HTML tags
+  elsif (/<[^>]*=[a-zA-Z0-9][^>]*>/) {
+    $msg = "=... -> =\"...\"";
+  }
+  if (defined $msg) {
+    if ($debug==0) {
+      print $ARGV .":". $. .": $msg : ". $org;
+    }
+    undef $msg;
+  }
+  elsif ($debug==1) {
+    print $org;
+  }
+} continue {
+  close ARGV if eof;
+}
+
+__END__
+
+=head1 NAME
+
+code-style.pl - Review drupal code for style
+
+=head1 SYNOPSIS
+
+  code-style.pl [options] <filename>
+
+  Options:
+
+  -? --help  detailed help message
+
+=head1 DESCRIPTION
+
+Originally written for Drupal (http://drupal.org/) to ensure stylish
+code.  This program reviews PHP code, and tries to show as many code
+improvements as possible with no false positives.
+
+=head1 OPTIONS
+
+  --comment
+
+=head1 EXAMPLES
+
+ ./code-style.pl ../index.php
+
+=cut