#!/usr/bin/perl
#
# FHTML.PL (for TextMate)
# Copyright (C) 1997 John Watson
# e-mail: [email protected]
#
# modified for TextMate by Ross A. Reyman - 12/2005
#
# -----About-----
# This Script formats and indents html source code.
# It makes code generated easier to read for humans.
#
# The latest copy of this script and documentation can be obtained from
# http://www.watson-net.com/

# tab settings | how many spaces per tab? Use tabs?
#
$amount = 2;
$usetabs = 1; 

# These are the tags that will be formatted. Comment out to taste!
#
$tags = "<!DOCTYPE|<html|</html|<body|</body|<head|</head|<title|<meta|<style|</style";
$tags .= "<script|</script";
$tags .= "|<isindex|<link";
$tags .= "|<table|<tr|<th|<td";
#$tags .= "|</tr|</th|</td";
$tags .= "|</table|</tr";
$tags .= "|<caption";
$tags .= "|<style|</style";
$tags .= "|<thead|</thead|<tbody|</tbody";
$tags .= "|<p";
$tags .= "|<blockquote|</blockquote|<hr|<div|</div";
$tags .= "|<img";
$tags .= "|<h1|<h2|<h3|<h4|<h5|<h6";
$tags .= "|<ul|</ul|<ol|</ol|<dl|</dl|<li|<dt|<dd|<dir|</dir|<menu|</menu";
$tags .= "|<map|<area|</map";
$tags .= "|<base";
$tags .= "|<object|<applet|<param|</object|</applet|<embed|</embed";
$tags .= "|<form|</form|<input|<select|<option|</select|<textarea";
$tags .= "|<fieldset|</fieldset|<legend|<label";

# honor EE code as tags
$tags .= "|{embed|{exp:|{/exp:";

# These tags get indented/unindented. Comment out to taste!
#
$tagindent = "<html|<body|<head";
$tagindent .= "<style|<script";
$tagindent .= "|<table|<th|<tr|<td";
#$tagindent .= "|<h1|<h2|<h3|<h4|<h5|<h6";
#$tagindent .= "|<p";
$tagindent .= "|<div|<blockquote";
$tagindent .= "|<select|<form|<option";
$tagindent .= "|<ul|<ol|<dl|<dir|<menu|<map";
$tagindent .= "|<fieldset|<legend|<label";

$tagunindent = "</html|</body|</head";
$tagunindent .= "</style|</script";
$tagunindent .= "|</table|</th|</tr|</td";
#$tagunindent .= "|<h1|<h2|<h3|<h4|<h5|<h6";
#$tagunindent .= "|</p";
$tagunindent .= "|</div|</blockquote";
$tagunindent .= "|</select|</form|</option";
$tagunindent .= "|</ul|</ol|</dl|</dir|</menu|</map";
$tagunindent .= "|</fieldset|</legend|</label";


# pass 1 - get selection and plug into array
  @lines = ();
  @temp = ();

  $x = 1;
    while (<>) {
        push @temp, $_;
        $x = $x + 1;
    }
    splitlines();

# pass 2 - remove tabs, clean up tags
    $SCRIPT = 0;
    $COMMENT = 0;
    $PRE = 0;

    $temp = '';
    foreach(@lines) {
        $SCRIPT = 0 if ($line =~ m@(</script|%>|\?>)@ig);
        $COMMENT = 0 if ($line =~ m@(-->|</comment>|</style>)@ig);
        $PRE = 0 if ($line =~ m@</pre>@ig);
        
        $line = $_;
        
        $SCRIPT = 1 if ($line =~ m@(<script|<%|<\?php)@ig);
        $COMMENT = 1 if ($line =~ m@(<!--|<comment|<style)@ig);
        $PRE = 1 if ($line =~ m@<pre@ig);

        if (!$SCRIPT && !$COMMENT && !$PRE) {
            # remove all tabs
            $line =~ s/\t//ig;
            
            # remove spaces just before or after an angle bracket
            $line =~ s/<\ /</ig;
            $line =~ s/\ >/>/ig;
            if ($line =~ />$/) {
                $temp .= $line;
            } else {
                $temp .= $line." ";
            }
        } else {
            $temp .= "\n".$line."\n";
        }
    }
    push @temp, $temp;
    splitlines();
    
    $SCRIPT = 0;
    $COMMENT = 0;
    $PRE = 0;

# pass 3 - 
    foreach(@lines) {
        $SCRIPT = 0 if ($line =~ m@(</script|%>|\?>)@ig);
        $COMMENT = 0 if ($line =~ m@(-->|</comment>|</style>)@ig);
        $PRE = 0 if ($line =~ m@</pre>@ig);
        
        $line = $_;
        
        $SCRIPT = 1 if ($line =~ m@(<script|<%|<\?php)@ig);
        $COMMENT = 1 if ($line =~ m@(<!--|<comment|<style)@ig);
        $PRE = 1 if ($line =~ m@<pre@ig);

        if (!$SCRIPT && !$COMMENT && !$PRE) {
            # remove extra whitespace
            $line =~ s/\ {2,}/\ /ig;

            # put tags on new lines
            $line =~ s@($tags)@\n$1@ig;
      }
        push @temp, $line;
    }
    splitlines();

# pass 4 - indent tags (defined in $tagsindent)
    $indent = 0;
    
    $SCRIPT = 0;
    $COMMENT = 0;
    $PRE = 0;

    foreach (@lines) {
        $SCRIPT = 0 if ($line =~ m@(</script|%>|\?>)@ig);
        $COMMENT = 0 if ($line =~ m@(-->|</comment>|</style>)@ig);
        $PRE = 0 if ($line =~ m@</pre>@ig);
        
        $line = $_;
    
        $SCRIPT = 1 if ($line =~ m@(<script|<%|<\?php)@ig);
        $COMMENT = 1 if ($line =~ m@(<!--|<comment|<style)@ig);
        $PRE = 1 if ($line =~ m@<pre@ig);
        
        $spaces = "";
        if (!$SCRIPT && !$COMMENT && !$PRE) {
          # remove trailing spaces
          $line =~ s@(\ $)@@ig;
          
            $indent -= $line =~ s@($tagunindent)@$1@ig;

      $spaces = "";
            for ($j=0; $j<$indent; $j++) {
                for ($k=0; $k<$amount; $k++) {
                    if ($usetabs) {
                      $spaces .= "\t";
                  } else {
                    $spaces .= " ";
                }
                }
            }
        }
        
        push @temp, $spaces.$line;
        
        if (!$SCRIPT && !$COMMENT && !$PRE) {
            $indent += $line =~ s/($tagindent)/$1/ig;
        }
    }
    splitlines();

# do it! (send back to TextMate)
    foreach (@lines) { print "$_\n"; }

exit;

# sub-routines
sub splitlines {
    @lines = ();

    foreach(@temp) {
      $line = $_;
      if ($line eq "\n") {
      # This preserves blank lines in script and comments.
        push @lines, " ";
      } else {
        push @lines, split(/\n/, $line);
      }
    }

    @temp = ();
}

I modified this excellent Perl script, created by John Watson (http://www.watson-net.com) to be used with TextMate to reformat your HTML for easier readability. Here's how to use it:

1.  In TextMate > Bundles > Bundle Editor > Show Bundle Editor
2.  Create a New Command (I call it "Reformat HTML")
3.  On right pane: **Save: Nothing** : **Command: (insert code)**
4.  Bottom right pane: **Input: Selected Text or Document**
5.  Bottom right pane: **Output: Replace Selected Text**
6.  Settings: Key Equivalent: (whatever you want, I use: Command-Option-Shift-F which matches old school BBEdit)
7.  Scope Selector: text.html

FHTML (for TextMate)

textmate, html, perl

Perl