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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Alan Knowles <alan@akbkhome> |
// +----------------------------------------------------------------------+
//
// $Id: Token.php,v 1.51 2005/05/14 03:44:26 alan_k Exp $
//
// This is the master Token file for The New Token driver Engine.
// All the Token output, and building routines are in here.
//
// Note overriden methods are not documented unless they differ majorly from
// The parent.
//
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['base'] = 0;
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['state'] = 0;
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['statevars'] = array();
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['activeForm'] = '';
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['tokens'] = array();
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['gettextStrings'] = array();
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['activeFormId'] = 0;
$GLOBALS['_HTML_TEMPLATE_FLEXY_TOKEN']['flexyIgnore'] = false;
/**
* Base Class for all Tokens.
*
* @abstract Provides the static Create Method, and default toString() methods
*
*/
class HTML_Template_Flexy_Token {
/**
* the token type (Depreciated when we have classes for all tokens
*
* @var string
* @access public
*/
var $token;
/**
* the default value (normally a string)
*
* @var string
* @access public
*/
var $value;
/**
* the line the token is from
*
* @var int
* @access public
*/
var $line;
/**
* the character Position
*
* @var int
* @access public
*/
var $charPos;
/**
* factory a Token
*
* Standard factory method.. - with object vars.
* ?? rename me to factory?
* @param string Token type
* @param mixed Initialization settings for token
* @param int line that the token is defined.
*
*
* @return object Created Object
* @access public
*/
function factory($token,$value,$line,$charPos=0) {
// try not to reload the same class to often
static $loaded = array();
$c = 'HTML_Template_Flexy_Token_'.$token;
if (!class_exists($c) && !isset($loaded[$token])) {
// make sure parse errors are picked up - no @ here..
if (file_exists(dirname(__FILE__)."/Token/{$token}.php")) {
require_once 'HTML/Template/Flexy/Token/'.$token.'.php';
}
$loaded[$token] = true;
}
$t = new HTML_Template_Flexy_Token;
if (class_exists($c)) {
$t = new $c;
}
$t->token = $token;
$t->charPos = $charPos;
if ($t->setValue($value) === false) {
// kick back error conditions..
return false;
}
$t->line = $line;
return $t;
}
/**
* Standard Value iterpretor
*
* @param mixed value recieved from factory method
* @return none
* @access public
*/
function setValue($value) {
$this->value = $value;
}
/**
* compile to String (vistor method) replaces toString
*
* @return string HTML
* @access public
*/
function compile(&$compiler) {
return $compiler->toString($this);
}
/**
* compile children (visitor approach).
*
* @return string HTML
* @access public
*/
function compileChildren( &$compiler) {
if (!$this->children) {
return '';
}
if ($this->ignoreChildren) {
return;
}
$ret = '';
//echo "output $this->id";
//new Gtk_VarDump($this);
foreach ($this->children as $child) {
if (!$child) {
continue;
}
$add = $child->compile($compiler);
if (is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= $add;
}
return $ret;
}
/* ======================================================= */
/* Token Managmenet = parse and store all the tokens in
* an associative array and tree.
*/
/**
* Run a Tokenizer and Store its results
* It should build a DOM Tree of the HTML
*
* @param object Tokenizer to run.. - Theoretically other Tokenizers could be done for email,rtf etc.
*
* @access public
* @return base token (really a dummy token, which contains the tree)
* @static
*/
function buildTokens($tokenizer)
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
// first record is a filler - to stick all the children on !
// reset my globals..
$_HTML_TEMPLATE_FLEXY_TOKEN['base'] = 0;
$_HTML_TEMPLATE_FLEXY_TOKEN['statevars'] = array();
$_HTML_TEMPLATE_FLEXY_TOKEN['state'] = 0;
$_HTML_TEMPLATE_FLEXY_TOKEN['flexyIgnore'] = false;
if (@$GLOBALS['_HTML_TEMPLATE_FLEXY']['currentOptions']['flexyIgnore']) {
$_HTML_TEMPLATE_FLEXY_TOKEN['flexyIgnore'] = true;
}
$_HTML_TEMPLATE_FLEXY_TOKEN['activeFormId'] = 0;
$_HTML_TEMPLATE_FLEXY_TOKEN['activeForm'] = '';
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'] = array(new HTML_Template_Flexy_Token);
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][0]->id =0;
$_HTML_TEMPLATE_FLEXY_TOKEN['gettextStrings'] = array();
$i=1;
// initialize state - this trys to make sure that
// you dont do to many elses etc.
//echo "RUNNING TOKENIZER";
// step one just tokenize it.
while ($t = $tokenizer->yylex()) {
if ($t == HTML_TEMPLATE_FLEXY_TOKEN_ERROR) {
//echo "ERROR";
//print_r($tokenizer);
$err = "<PRE>" . $tokenizer->error . "\n" .
htmlspecialchars(substr($tokenizer->yy_buffer,0,$tokenizer->yy_buffer_end)) .
"<font color='red'>". htmlspecialchars(substr($tokenizer->yy_buffer,$tokenizer->yy_buffer_end,100)) .
".......</font></PRE>";
return HTML_Template_Flexy::raiseError('HTML_Template_Flexy::Syntax error in ".
"Template line:'. $tokenizer->yyline .
$err
, HTML_TEMPLATE_FLEXY_ERROR_SYNTAX ,HTML_TEMPLATE_FLEXY_ERROR_RETURN);
}
if ($t == HTML_TEMPLATE_FLEXY_TOKEN_NONE) {
continue;
}
if ( $tokenizer->value->token == 'Php' ) {
if (!$GLOBALS['_HTML_TEMPLATE_FLEXY']['currentOptions']['allowPHP']) {
return HTML_Template_Flexy::raiseError('PHP code found in script (Token)',
HTML_TEMPLATE_FLEXY_ERROR_SYNTAX,HTML_TEMPLATE_FLEXY_ERROR_RETURN
);
}
if ($GLOBALS['_HTML_TEMPLATE_FLEXY']['currentOptions']['allowPHP'] === 'delete') {
continue;
}
}
$i++;
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i] = $tokenizer->value;
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->id = $i;
// this whole children thing needs rethinking
// - I think the body of the page should be wrapped: ..
// ?php if (!$this->bodyOnly) { .. <HTML> .... <BODY....> ?php } ?
//
// old values alias to new ones..
if (isset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXYSTART'])) {
unset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXYSTART']);
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXY:START'] = true;
}
if (isset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXYSTARTCHILDREN'])) {
unset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXYSTARTCHILDREN']);
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXY:STARTCHILDREN'] = true;
}
if (isset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXY:START'])) {
$_HTML_TEMPLATE_FLEXY_TOKEN['base'] = $i;
unset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXY:START']);
}
if (isset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->ucAttributes['FLEXY:STARTCHILDREN'])) {
$_HTML_TEMPLATE_FLEXY_TOKEN['base'] = $i;
}
//print_r($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]);
}
//echo "BUILT TOKENS";
$res = &$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'];
// DEBUG DUMPTING : foreach($res as $k) { $k->dump(); }
$stack = array();
$total = $i +1;
// merge strings and entities - blanking out empty text.
for($i=1;$i<$total;$i++) {
if (!isset($res[$i]) || !is_a($res[$i],'HTML_Template_Flexy_Token_Text')) {
continue;
}
$first = $i;
$i++;
while ($i<$total && is_a($res[$i],'HTML_Template_Flexy_Token_Text')) {
if (isset($res[$i])) {
$res[$first]->value .= $res[$i]->value;
$res[$i]->value = '';
}
$i++;
}
}
// connect open and close tags.
// this is done by having a stack for each of the tag types..
// then removing it when it finds the closing one
// eg.
// <a href=""><img src=""></a>
// ends up with a stack for <a>'s and a stack for <img>'s
//
//
//
//echo '<PRE>' . htmlspecialchars(print_R($res,true));//exit;
//echo '<PRE>';
for($i=1;$i<$total;$i++) {
if (empty($res[$i]->tag)) {
continue;
}
//echo "Checking TAG $i {$res[$i]->tag}\n";
if ($res[$i]->tag{0} == '/') { // it's a close tag..
//echo "GOT END TAG: {$res[$i]->tag}\n";
$tag = strtoupper(substr($res[$i]->tag,1));
if (!count($stack)) {
continue;
}
$ssc = count($stack) - 1;
/* go up the stack trying to find a match */
for($s = $ssc; $s > -1; $s--) {
if (!isset($stack[$s])) {
echo "MISSED STACK? $s<BR><PRE>";print_r($stack);exit;
}
if (!isset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$stack[$s]])) {
echo "STACKED BAD OFFSET : {$stack[$s]}<BR><PRE>";print_r($stack);exit;
}
$tok = &$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$stack[$s]];
if (strtoupper($tok->tag) == $tag) {
// got the matching closer..
// echo "MATCH: {$i}:{$tok->tag}({$tok->line}) to {$stack[$s]}:$tag<BR>";
$tok->close = &$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i];
array_splice($stack,$s);
//print_R($stack);
break;
}
}
continue;
}
$stack[] = $i;
// tag with no closer (or unmatched in stack..)
}
// create a dummy close for the end
$i = $total;
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i] = new HTML_Template_Flexy_Token;
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->id = $total;
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][0]->close = &$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$total];
// now is it possible to connect children...
// now we need to GLOBALIZE!! -
$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'] = $res;
HTML_Template_Flexy_Token::buildChildren(0);
//new Gtk_VarDump($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][0]);
//echo '<PRE>';print_R($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$_HTML_TEMPLATE_FLEXY_TOKEN['base']] );
return $_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$_HTML_TEMPLATE_FLEXY_TOKEN['base']];
}
/**
* Matching closing tag for a Token
*
* @var object|none optional closing tag
* @access public
*/
var $close;
/**
* array of children to each object.
*
* @var array
* @access public|private
*/
var $children = array();
/**
* Build the child array for each element.
* RECURSIVE FUNCTION!!!!
* @param int id of node to add children to.
*
* @access public
* @static
*/
function buildChildren($id)
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
$base = &$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$id];
$base->children = array();
$start = $base->id +1;
$end = $base->close->id;
for ($i=$start; $i<$end; $i++) {
//echo "{$base->id}:{$base->tag} ADDING {$i}{$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->tag}<BR>";
//if ($base->id == 1176) {
// echo "<PRE>";print_r($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]);
// }
$base->children[] = &$_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i];
if (isset($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]) &&
is_object($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->close)) {
// if the close id is greater than my id - ignore it! -
if ($_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->close->id > $end) {
continue;
}
HTML_Template_Flexy_Token::buildChildren($i);
$i = $_HTML_TEMPLATE_FLEXY_TOKEN['tokens'][$i]->close->id;
}
}
}
/**
* Flag to ignore children - Used to block output for select/text area etc.
* may not be required as I moved the Tag parsing into the toString ph
*
* @var boolean ingore children
* @access public
*/
var $ignoreChildren = false;
/* ======================================================== */
/* variable STATE management
*
* raw variables are assumed to be $this->, unless defined by foreach..
* it also monitors syntax - eg. end without an if/foreach etc.
*/
/**
* tell the generator you are entering a block
*
* @access public
*/
function pushState()
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
$_HTML_TEMPLATE_FLEXY_TOKEN['state']++;
$s = $_HTML_TEMPLATE_FLEXY_TOKEN['state'];
$_HTML_TEMPLATE_FLEXY_TOKEN['statevars'][$s] = array(); // initialize statevars
}
/**
* tell the generator you are entering a block
*
* @return boolean parse error - out of bounds
* @access public
*/
function pullState()
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
$s = $_HTML_TEMPLATE_FLEXY_TOKEN['state'];
$_HTML_TEMPLATE_FLEXY_TOKEN['statevars'][$s] = array(); // initialize statevars
$_HTML_TEMPLATE_FLEXY_TOKEN['state']--;
if ($s<0) {
return false;
}
return true;
}
/**
* get the real variable name formated x.y.z => $this->x->y->z
* if a variable is in the stack it return $x->y->z
*
* @return string PHP variable
* @access public
*/
function toVar($s) {
// wrap [] with quotes.
$s = str_replace('[',"['",$s);
$s = str_replace('%5b',"['",$s);
$s = str_replace('%5B',"['",$s);
$s = str_replace(']',"']",$s);
$s = str_replace('%5d',"']",$s);
$s = str_replace('%5D',"']",$s);
// strip the quotes if it's only numbers..
$s = preg_replace("/'([-]?[0-9]+)'/", "\\1",$s);
$parts = explode(".",$s);
$ret = $this->findVar($parts[0]);
if (is_a($ret,'PEAR_Error')) {
return $ret;
}
array_shift($parts);
if (!count($parts)) {
return $ret;
}
foreach($parts as $p) {
$ret .= "->{$p}";
}
return $ret;
}
/**
* do the stack lookup on the variable
* this relates to flexy
* t relates to the object being parsed.
*
* @return string PHP variable
* @access public
*/
function findVar($string)
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
if (!$string || $string == 't') {
return '$t';
}
if ($string == 'this') {
return '$this';
}
// accept global access on some string
if (@$GLOBALS['_HTML_TEMPLATE_FLEXY']['currentOptions']['globals'] &&
preg_match('/^(_POST|_GET|_REQUEST|_SESSION|_COOKIE|GLOBALS)\[/',$string)) {
return '$'.$string;
}
if (!@$GLOBALS['_HTML_TEMPLATE_FLEXY']['currentOptions']['privates'] &&
($string{0} == '_')) {
return HTML_Template_Flexy::raiseError('HTML_Template_Flexy::Attempt to access private variable:'.
" on line {$this->line} of {$GLOBALS['_HTML_TEMPLATE_FLEXY']['filename']}".
", Use options[privates] to allow this."
, HTML_TEMPLATE_FLEXY_ERROR_SYNTAX ,HTML_TEMPLATE_FLEXY_ERROR_RETURN);
}
$lookup = $string;
if ($p = strpos($string,'[')) {
$lookup = substr($string,0,$p);
}
for ($s = $_HTML_TEMPLATE_FLEXY_TOKEN['state']; $s > 0; $s--) {
if (in_array($lookup , $_HTML_TEMPLATE_FLEXY_TOKEN['statevars'][$s])) {
return '$'.$string;
}
}
return '$t->'.$string;
}
/**
* add a variable to the stack.
*
* @param string PHP variable
* @access public
*/
function pushVar($string)
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
$s = $_HTML_TEMPLATE_FLEXY_TOKEN['state'];
$_HTML_TEMPLATE_FLEXY_TOKEN['statevars'][$s][] = $string;
}
/**
* dump to text ATM
*
*
* @access public
*/
function dump() {
echo "{$this->token}/" . (isset($this->tag) ? "<{$this->tag}>" : '') . ": {$this->value}\n";
}
}
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