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<?php
/**
* Replace tokenizer constants
*
* @category PHP
* @package PHP_Compat
* @link http://php.net/ref.tokenizer
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 1.4 $
* @since PHP 5
*/
if (!defined('T_ML_COMMENT')) {
define('T_ML_COMMENT', T_COMMENT);
}
if (!defined('T_DOC_COMMENT')) {
define('T_DOC_COMMENT', T_ML_COMMENT);
}
if (!defined('T_OLD_FUNCTION')) {
define('T_OLD_FUNCTION', -1);
}
if (!defined('T_ABSTRACT')) {
define('T_ABSTRACT', -1);
}
if (!defined('T_CATCH')) {
define('T_CATCH', -1);
}
if (!defined('T_FINAL')) {
define('T_FINAL', -1);
}
if (!defined('T_INSTANCEOF')) {
define('T_INSTANCEOF', -1);
}
if (!defined('T_PRIVATE')) {
define('T_PRIVATE', -1);
}
if (!defined('T_PROTECTED')) {
define('T_PROTECTED', -1);
}
if (!defined('T_PUBLIC')) {
define('T_PUBLIC', -1);
}
if (!defined('T_THROW')) {
define('T_THROW', -1);
}
if (!defined('T_TRY')) {
define('T_TRY', -1);
}
if (!defined('T_CLONE')) {
define('T_CLONE', -1);
}
/**
* Improved PHP syntax highlighting.
*
* Generates valid XHTML output with function referencing
* and line numbering.
*
* Three output methods provide maximum flexibility.
* Formatted HTML (toHTML), Ordered Lists (toList), or as an
* associative array (toArray).
*
* Highlighting can be inline (with styles), or the same as
* highlight_file() where colors are taken from php.ini.
*
* @author Aidan Lister <aidan@php.net>
* @author Based on an idea by Matthew Harris <shugotenshi@gmail.com>
* @version 1.2.1
*/
class PHP_Highlight
{
/**
* Hold the source
*
* @var string
* @access private
*/
var $_source = false;
/**
* Hold highlight colors
*
* Contains an associative array of token types and colours.
* By default, it contains the colours as specified by php.ini
*
* For example, to change the colour of strings, use something
* simular to $h->highlight['string'] = 'blue';
*
* @var array
* @access public
*/
var $highlight;
/**
* Things to be replaced for formatting or otherwise reasons
*
* The first element contains the match array, the second the replace
* array.
*
* @var array
* @access public
*/
var $replace = array(
0 => array("\t", ' '),
1 => array(' ', ' '));
/**
* Format of the link to the PHP manual page
*
* @var string
* @access public
*/
var $manual = '<a href="http://www.php.net/function.%s" target="_new">%s</a>';
/**
* Format of the span tag to be wrapped around each token
*
* @var string
* @access public
*/
var $span;
/**
* Constructor
*
* Populates highlight array
*
* @param bool $inline If inline styles rather than colors are to be used
*/
function PHP_Highlight($inline = false)
{
if ($inline === false) {
// Default colours from php.ini
$this->highlight = array(
'string' => ini_get('highlight.string'),
'comment' => ini_get('highlight.comment'),
'keyword' => ini_get('highlight.keyword'),
'bg' => ini_get('highlight.bg'),
'default' => ini_get('highlight.default'),
'html' => ini_get('highlight.html')
);
$this->span = '<span style="color: %s;">%s</span>';
} else {
// Basic styles
$this->highlight = array(
'string' => 'string',
'comment' => 'comment',
'keyword' => 'keyword',
'bg' => 'bg',
'default' => 'default',
'html' => 'html'
);
$this->span = '<span class="%s">%s</span>';
}
}
/**
* Load a file
*
* @access public
* @param string $file The file to load
* @return bool Returns TRUE
*/
function loadFile($file)
{
$this->_source = file_get_contents($file);
return true;
}
/**
* Load a string
*
* @access public
* @param string $string The string to load
* @return bool Returns TRUE
*/
function loadString($string)
{
$this->_source = $string;
return true;
}
/**
* Parse the loaded string into an array
* Source is returned with the element key corresponding to the line number
*
* @access public
* @param bool $funcref Reference functions to the PHP manual
* @return array An array of highlighted source code
*/
function toArray($funcref = true)
{
// Ensure source has been loaded
if ($this->_source == false) {
return false;
}
// Init
$tokens = token_get_all($this->_source);
$manual = $this->manual;
$span = $this->span;
$i = 0;
$out = array();
$out[$i] = '';
// Loop through each token
foreach ($tokens as $j => $token) {
// Single char
if (is_string($token)) {
// Skip token2color check for speed
$out[$i] .= sprintf($span, $this->highlight['keyword'], htmlspecialchars($token));
// Heredocs behave strangely
list($tb) = isset($tokens[$j - 1]) ? $tokens[$j - 1] : false;
if ($tb == T_END_HEREDOC) {
$out[++$i] = '';
}
continue;
}
// Proper token
list ($token, $value) = $token;
// Make the value safe
$value = htmlspecialchars($value);
$value = str_replace($this->replace[0], $this->replace[1], $value);
// Process
if ($value === "\n") {
// End this line and start the next
$out[++$i] = '';
} else {
// Function linking
if ($funcref === true && $token === T_STRING) {
// Look ahead 1, look ahead 2, and look behind 3
if ((isset($tokens[$j + 1]) && $tokens[$j + 1] === '(' ||
isset($tokens[$j + 2]) && $tokens[$j + 2] === '(') &&
isset($tokens[$j - 3][0]) && $tokens[$j - 3][0] !== T_FUNCTION
&& function_exists($value)) {
$funcion = new ReflectionFunction($value);
// Insert the manual link
if ($funcion->isInternal())
$value = sprintf($manual, $value, $value);
}
}
// Explode token block
$lines = explode("\n", $value);
foreach ($lines as $jj => $line) {
$line = trim($line);
if ($line !== '') {
$out[$i] .= sprintf($span, $this->_token2color($token), $line);
}
// Start a new line
if (isset($lines[$jj + 1])) {
$out[++$i] = '';
}
}
}
}
return $out;
}
/**
* Convert the source to an ordered list.
* Each line is wrapped in <li> tags.
*
* @access public
* @param bool $return Return rather than print the results
* @param bool $funcref Reference functions to the PHP manual
* @return string A HTML ordered list
*/
function toList($return = true, $funcref = true)
{
// Ensure source has been loaded
if ($this->_source == false) {
return false;
}
// Format list
$source = $this->toArray($funcref);
$out = "<ol>\n";
foreach ($source as $line) {
$out .= " <li>";
$out .= empty($line) ? ' ' : "<code>$line</code>";
$out .= "</li>\n";
}
$out .= "</ol>\n";
if ($return === true) {
return $out;
} else {
echo $out;
}
}
/**
* Convert the source to formatted HTML.
* Each line ends with <br />.
*
* @access public
* @param bool $return Return rather than print the results
* @param bool $linenum Display line numbers
* @param string $linenummod Specify format of line numbers displayed
* @param bool $funcref Reference functions to the PHP manual
* @return string A HTML block of code
*/
function toHtml($return = true, $linenum = false, $linenummod = null, $funcref = true, $extra_linea = array())
{
// Ensure source has been loaded
if ($this->_source == false) {
return false;
}
// Line numbering
if ($linenum === true && $linenummod === null) {
$linenummod = '<span>%02d</span> ';
}
// Format code
$source = $this->toArray($funcref);
$out = "<code>\n";
foreach ($source as $i => $line) {
$out .= " ";
if ($linenum === true) {
$out .= sprintf($linenummod, $i+1);
}
if (isset($extra_linea[$i+1])) {
$out .= $extra_linea[$i+1];
}
$out .= empty($line) ? ' ' : $line;
$out .= "<br />\n";
}
$out .= "</code>\n";
if ($return === true) {
return $out;
} else {
echo $out;
}
}
/**
* Assign a color based on the name of a token
*
* @access private
* @param int $token The token
* @return string The color of the token
*/
function _token2color($token)
{
switch ($token):
case T_CONSTANT_ENCAPSED_STRING:
return $this->highlight['string'];
break;
case T_INLINE_HTML:
return $this->highlight['html'];
break;
case T_COMMENT:
case T_DOC_COMMENT:
case T_ML_COMMENT:
return $this->highlight['comment'];
break;
case T_ABSTRACT:
case T_ARRAY:
case T_ARRAY_CAST:
case T_AS:
case T_BOOLEAN_AND:
case T_BOOLEAN_OR:
case T_BOOL_CAST:
case T_BREAK:
case T_CASE:
case T_CATCH:
case T_CLASS:
case T_CLONE:
case T_CONCAT_EQUAL:
case T_CONTINUE:
case T_DEFAULT:
case T_DOUBLE_ARROW:
case T_DOUBLE_CAST:
case T_ECHO:
case T_ELSE:
case T_ELSEIF:
case T_EMPTY:
case T_ENDDECLARE:
case T_ENDFOR:
case T_ENDFOREACH:
case T_ENDIF:
case T_ENDSWITCH:
case T_ENDWHILE:
case T_END_HEREDOC:
case T_EXIT:
case T_EXTENDS:
case T_FINAL:
case T_FOREACH:
case T_FUNCTION:
case T_GLOBAL:
case T_IF:
case T_INC:
case T_INCLUDE:
case T_INCLUDE_ONCE:
case T_INSTANCEOF:
case T_INT_CAST:
case T_ISSET:
case T_IS_EQUAL:
case T_IS_IDENTICAL:
case T_IS_NOT_IDENTICAL:
case T_IS_SMALLER_OR_EQUAL:
case T_NEW:
case T_OBJECT_CAST:
case T_OBJECT_OPERATOR:
case T_PAAMAYIM_NEKUDOTAYIM:
case T_PRIVATE:
case T_PROTECTED:
case T_PUBLIC:
case T_REQUIRE:
case T_REQUIRE_ONCE:
case T_RETURN:
case T_SL:
case T_SL_EQUAL:
case T_SR:
case T_SR_EQUAL:
case T_START_HEREDOC:
case T_STATIC:
case T_STRING_CAST:
case T_THROW:
case T_TRY:
case T_UNSET_CAST:
case T_VAR:
case T_WHILE:
return $this->highlight['keyword'];
break;
case T_CLOSE_TAG:
case T_OPEN_TAG:
case T_OPEN_TAG_WITH_ECHO:
default:
return $this->highlight['default'];
endswitch;
}
}
?>
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