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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: Tag.php 315533 2011-08-26 02:39:02Z alan_k $
/* FC/BC compatibility with php5 */
if ( (substr(phpversion(),0,1) < 5) && !function_exists('clone')) {
eval('function clone($t) { return $t; }');
}
/**
* Compiler That deals with standard HTML Tag output.
* Since it's pretty complex it has it's own class.
* I guess this class should deal with the main namespace
* and the parent (standard compiler can redirect other namespaces to other classes.
*
* one instance of these exists for each namespace.
*
*
* @version $Id: Tag.php 315533 2011-08-26 02:39:02Z alan_k $
*/
class HTML_Template_Flexy_Compiler_Standard_Tag {
/**
* Parent Compiler for
*
* @var object HTML_Template_Flexy_Compiler
*
* @access public
*/
var $compiler;
/**
*
* Factory method to create Tag Handlers
*
* $type = namespace eg. <flexy:toJavascript loads Flexy.php
* the default is this... (eg. Tag)
*
*
* @param string Namespace handler for element.
* @param object HTML_Template_Flexy_Compiler
*
*
* @return object tag compiler
* @access public
*/
function &factory($type,&$compiler) {
if (!$type) {
$type = 'Tag';
}
// if we dont have a handler - just use the basic handler.
if (!file_exists(dirname(__FILE__) . '/'. ucfirst(strtolower($type)) . '.php')) {
$type = 'Tag';
}
include_once 'HTML/Template/Flexy/Compiler/Standard/' . ucfirst(strtolower($type)) . '.php';
$class = 'HTML_Template_Flexy_Compiler_Standard_' . $type;
if (!class_exists($class)) {
return false;
}
$ret = new $class;
$ret->compiler = &$compiler;
return $ret;
}
/**
* The current element to parse..
*
* @var object
* @access public
*/
var $element;
/**
* Flag to indicate has attribute flexy:foreach (so you cant mix it with flexy:if!)
*
* @var boolean
* @access public
*/
var $hasForeach = false;
/**
* toString - display tag, attributes, postfix and any code in attributes.
* Note first thing it does is call any parseTag Method that exists..
*
*
* @see parent::toString()
*/
function toString($element)
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
global $_HTML_TEMPLATE_FLEXY;
// store the element in a variable
$this->element = $element;
// echo "toString: Line {$this->element->line} <{$this->element->tag}>\n";
// if the FLEXYSTARTCHILDREN flag was set, only do children
// normally set in BODY tag.
// this will probably be superseeded by the Class compiler.
if (isset($element->ucAttributes['FLEXY:STARTCHILDREN'])) {
return $element->compileChildren($this->compiler);
}
$flexyignore = $this->parseAttributeIgnore();
// rewriting should be done with a tag.../flag.
$this->reWriteURL("HREF");
$this->reWriteURL("SRC");
// handle elements
if (($ret =$this->_parseTags()) !== false) {
return $ret;
}
// these add to the close tag..
$ret = $this->parseAttributeForeach();
$ret .= $this->parseAttributeIf();
// spit ou the tag and attributes.
if ($element->oTag{0} == '?') {
$ret .= '<?php echo "<"; ?>';
} else {
$ret .= "<";
}
$ret .= $element->oTag;
foreach ($element->attributes as $k=>$v) {
// if it's a flexy tag ignore it.
if (strtoupper($k) == 'FLEXY:RAW') {
if (!is_array($v) || !isset($v[1]) || !is_object($v[1])) {
return HTML_Template_Flexy::raiseError(
'flexy:raw only accepts a variable or method call as an argument, eg.'.
' flexy:raw="{somevalue}" you provided something else.' .
" Error on Line {$this->element->line} <{$this->element->tag}>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
$add = $v[1]->compile($this->compiler);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= ' ' . $add;
continue;
}
if (strtoupper(substr($k,0,6)) == 'FLEXY:') {
continue;
}
// true == an attribute without a ="xxx"
if ($v === true) {
$ret .= " $k";
continue;
}
// if it's a string just dump it.
if (is_string($v)) {
$ret .= " {$k}={$v}";
continue;
}
// normally the value is an array of string, however
// if it is an object - then it's a conditional key.
// eg. if (something) echo ' SELECTED';
// the object is responsible for adding it's space..
if (is_object($v)) {
$add = $v->compile($this->compiler);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= $add;
continue;
}
// otherwise its a key="sometext{andsomevars}"
$ret .= " {$k}=";
foreach($v as $item) {
if (is_string($item)) {
$ret .= $item;
continue;
}
$add = $item->compile($this->compiler);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= $add;
}
}
$ret .= ">";
// post stuff this is probably in the wrong place...
if ($element->postfix) {
foreach ($element->postfix as $e) {
$add = $e->compile($this->compiler);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= $add;
}
} else if ($this->element->postfix) { // if postfixed by self..
foreach ($this->element->postfix as $e) {
$add = $e->compile($this->compiler);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= $add;
}
}
// dump contents of script raw - to prevent gettext additions..
// print_r($element);
if ($element->tag == 'SCRIPT') {
foreach($element->children as $c) {
//print_R($c);
if (!$c) {
continue;
}
if ($c->token == 'Text') {
$ret .= $c->value;
continue;
}
// techically we shouldnt have anything else inside of script tags.
// as the tokeinzer is supposted to ignore it..
}
} else {
$add = $element->compileChildren($this->compiler);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= $add;
}
// output the closing tag.
if ($element->close) {
$add = $element->close->compile($this->compiler);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
$ret .= $add;
}
// reset flexyignore
$_HTML_TEMPLATE_FLEXY_TOKEN['flexyIgnore'] = $flexyignore;
if (isset($_HTML_TEMPLATE_FLEXY['currentOptions']['output.block']) &&
($_HTML_TEMPLATE_FLEXY['currentOptions']['output.block'] == $element->getAttribute('ID'))) {
// echo $_HTML_TEMPLATE_FLEXY['compiledTemplate'];
$fh = fopen($_HTML_TEMPLATE_FLEXY['compiledTemplate'],'w');
fwrite($fh,$ret);
fclose($fh);
}
return $ret;
}
/**
* Reads an flexy:foreach attribute -
*
*
* @return string to add to output.
* @access public
*/
function parseAttributeIgnore()
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
$flexyignore = $_HTML_TEMPLATE_FLEXY_TOKEN['flexyIgnore'];
if ($this->element->getAttribute('FLEXY:IGNORE') !== false) {
$_HTML_TEMPLATE_FLEXY_TOKEN['flexyIgnore'] = true;
$this->element->clearAttribute('FLEXY:IGNORE');
}
return $flexyignore;
}
/**
* Reads an flexy:foreach attribute -
*
*
* @return string to add to output.
* @access public
*/
function parseAttributeForeach()
{
$foreach = $this->element->getAttribute('FLEXY:FOREACH');
if ($foreach === false) {
return '';
}
//var_dump($foreach);
$this->element->hasForeach = true;
// create a foreach element to wrap this with.
$foreachObj = $this->element->factory('Foreach',
explode(',',$foreach),
$this->element->line);
// failed = probably not enough variables..
if ($foreachObj === false) {
return HTML_Template_Flexy::raiseError(
"Missing Arguments: An flexy:foreach attribute was foundon Line {$this->element->line}
in tag <{$this->element->tag} flexy:foreach="$foreach" .....><BR>
the syntax is <sometag flexy:foreach="onarray,withvariable[,withanothervar] ><BR>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
// does it have a closetag?
if (!$this->element->close) {
if ($this->element->getAttribute('/') === false) {
return HTML_Template_Flexy::raiseError(
"A flexy:foreach attribute was found in <{$this->element->name} tag without a corresponding </{$this->element->tag}
tag on Line {$this->element->line} <{$this->element->tag}>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
// it's an xhtml tag!
$this->element->postfix = array($this->element->factory("End", '', $this->element->line));
} else {
$this->element->close->postfix = array($this->element->factory("End", '', $this->element->line));
}
$this->element->clearAttribute('FLEXY:FOREACH');
return $foreachObj->compile($this->compiler);
}
/**
* Reads an flexy:if attribute -
*
*
* @return string to add to output.
* @access public
*/
function parseAttributeIf()
{
// dont use the together, if is depreciated..
$if = $this->element->getAttribute('FLEXY:IF');
if ($if === false) {
return '';
}
if (isset($this->element->hasForeach)) {
return HTML_Template_Flexy::raiseError(
"You may not use FOREACH and IF tags in the same tag on Line {$this->element->line} <{$this->element->tag}>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
// allow if="!somevar"
$ifnegative = '';
if ($if{0} == '!') {
$ifnegative = '!';
$if = substr($if,1);
}
// if="xxxxx"
// if="xxxx.xxxx()" - should create a method prefixed with 'if:'
// these checks should really be in the if/method class..!!!
if (!preg_match('/^[_A-Z][A-Z0-9_]*(\[[0-9]+\])?((\[|%5B)[A-Z0-9_]+(\]|%5D))*'.
'(\.[_A-Z][A-Z0-9_]*((\[|%5B)[A-Z0-9_]+(\]|%5D))*)*(\\([^)]*\))?$/i',$if)) {
return HTML_Template_Flexy::raiseError(
"IF tags only accept simple object.variable or object.method() values on
Line {$this->element->line} <{$this->element->tag}>
{$if}",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
if (substr($if,-1) == ')') {
// grab args..
$args = substr($if,strpos($if,'(')+1,-1);
// simple explode ...
$args = strlen(trim($args)) ? explode(',',$args) : array();
//print_R($args);
// this is nasty... - we need to check for quotes = eg. # at beg. & end..
$args_clean = array();
for ($i=0; $i<count($args); $i++) {
if ($args[$i]{0} != '#') {
$args_clean[] = $args[$i];
continue;
}
// single # - so , must be inside..
if ((strlen($args[$i]) > 1) && ($args[$i]{strlen($args[$i])-1}=='#')) {
$args_clean[] = $args[$i];
continue;
}
$args[$i] .=',' . $args[$i+1];
// remove args+1..
array_splice($args,$i+1,1);
$i--;
// reparse..
}
$ifObj = $this->element->factory('Method',
array('if:'.$ifnegative.substr($if,0,strpos($if,'(')), $args_clean),
$this->element->line);
} else {
$ifObj = $this->element->factory('If', $ifnegative.$if, $this->element->line);
}
// does it have a closetag? - you must have one - so you will have to hack in <span flexy:if=..><img></span> on tags
// that do not have close tags - it's done this way to try and avoid mistakes.
if (!$this->element->close) {
//echo "<PRE>";print_R($this->element);
if ($this->element->getAttribute('/') !== false) {
$this->element->postfix = array($this->element->factory("End",'', $this->element->line));
} else {
return HTML_Template_Flexy::raiseError(
"An flexy:if attribute was found in <{$this->element->name} tag without a corresponding </{$this->element->name}
tag on Line {$this->element->line} <{$this->element->tag}>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
} else {
$this->element->close->postfix = array($this->element->factory("End",'', $this->element->line));
}
$this->element->clearAttribute('FLEXY:IF');
return $ifObj->compile($this->compiler);
}
/**
* Reads Tags - and relays to parseTagXXXXXXX
*
*
* @return string | false = html output or ignore (just output the tag)
* @access private
*/
function _parseTags()
{
global $_HTML_TEMPLATE_FLEXY_TOKEN;
// doesnt really need strtolower etc. as php functions are not case sensitive!
if ($this->element->getAttribute('FLEXY:DYNAMIC')) {
return $this->compiler->appendPhp(
$this->getElementPhp( $this->element->getAttribute('ID') )
);
}
if ($this->element->getAttribute('FLEXY:IGNOREONLY') !== false) {
return false;
}
if ($_HTML_TEMPLATE_FLEXY_TOKEN['flexyIgnore']) {
return false;
}
$tag = $this->element->tag;
if (strpos($tag,':') !== false) {
$bits = explode(':',$tag);
$tag = $bits[1];
}
$method = 'parseTag'.$tag;
if (!method_exists($this,$method)) {
return false;
}
// do any of the attributes use flexy data...
foreach ($this->element->attributes as $k=>$v) {
if (is_array($v)) {
return false;
}
}
//echo "call $method" . serialize($this->element->attributes). "\n";
return $this->$method();
// allow the parse methods to return output.
}
/**
* produces the code for dynamic elements
*
* @return string | false = html output or ignore (just output the tag)
* @access public
*/
function getElementPhp($id,$mergeWithName=false) {
global $_HTML_TEMPLATE_FLEXY;
static $tmpId=0;
if (!$id) {
return HTML_Template_Flexy::raiseError(
"Error:{$_HTML_TEMPLATE_FLEXY['filename']} on Line {$this->element->line} <{$this->element->tag}>: " .
" Dynamic tags require an ID value",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
// dont mix and match..
if (($this->element->getAttribute('FLEXY:IF') !== false) ||
($this->element->getAttribute('FLEXY:FOREACH') !== false) )
{
return HTML_Template_Flexy::raiseError(
"Error:{$_HTML_TEMPLATE_FLEXY['filename']} on Line {$this->element->line} <{$this->element->tag}>: " .
" You can not mix flexy:if= or flexy:foreach= with dynamic form elements " .
" (turn off tag to element code with flexyIgnore=0, use flexy:ignore="yes" in the tag" .
" or put the conditional outside in a span tag",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
if ((strtolower($this->element->getAttribute('type')) == 'checkbox' ) &&
(substr($this->element->getAttribute('name'),-2) == '[]')) {
if ($this->element->getAttribute('id') === false) {
$id = 'tmpId'. (++$tmpId);
$this->element->attributes['id'] = $id;
$this->element->ucAttributes['ID'] = $id;
}
$mergeWithName = true;
}
if (isset($_HTML_TEMPLATE_FLEXY['elements'][$id])) {
// echo "<PRE>";print_r($this);print_r($_HTML_TEMPLATE_FLEXY['elements']);echo "</PRE>";
return HTML_Template_Flexy::raiseError(
"Error:{$_HTML_TEMPLATE_FLEXY['filename']} on Line {$this->element->line} in Tag <{$this->element->tag}>:<BR> " .
"The Dynamic tag Name '$id' has already been used previously by tag <{$_HTML_TEMPLATE_FLEXY['elements'][$id]->tag}>",
null,HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
// this is for a case where you can use a sprintf as the name, and overlay it with a variable element..
$_HTML_TEMPLATE_FLEXY['elements'][$id] = $this->toElement($this->element);
if ($var = $this->element->getAttribute('FLEXY:NAMEUSES')) {
$var = 'sprintf(\''.$id .'\','.$this->element->toVar($var) .')';
return
'if (!isset($this->elements['.$var.'])) $this->elements['.$var.']= $this->elements[\''.$id.'\'];
$this->elements['.$var.'] = $this->mergeElement($this->elements[\''.$id.'\'],$this->elements['.$var.']);
$this->elements['.$var.']->attributes[\'name\'] = '.$var. ';
echo $this->elements['.$var.']->toHtml();';
} elseif ($mergeWithName) {
$name = $this->element->getAttribute('NAME');
return
'$element = $this->elements[\''.$id.'\'];
$element = $this->mergeElement($element,$this->elements[\''.$name.'\']);
echo $element->toHtml();';
} else {
return 'echo $this->elements[\''.$id.'\']->toHtml();';
}
}
/**
* Reads an Script tag - check if PHP is allowed.
*
* @return false|PEAR_Error
* @access public
*/
function parseTagScript() {
$lang = $this->element->getAttribute('LANGUAGE');
if (!$lang) {
return false;
}
$lang = strtoupper($lang);
if ($GLOBALS['_HTML_TEMPLATE_FLEXY']['currentOptions']['allowPHP']) {
return false;
}
if ($lang == "PHP") {
return HTML_Template_Flexy::raiseError('PHP code found in script',
HTML_TEMPLATE_FLEXY_ERROR_SYNTAX,HTML_TEMPLATE_FLEXY_ERROR_RETURN
);
}
return false;
}
/**
* Reads an Input tag - build a element object for it
*
*
* @return string | false = html output or ignore (just output the tag)
* @access public
*/
function parseTagInput()
{
global $_HTML_TEMPLATE_FLEXY;
if (in_array(strtoupper($this->element->getAttribute('TYPE')), array('SUBMIT','BUTTON','INPUT',''))) {
$this->compiler->addStringToGettext($this->element->getAttribute('VALUE'));
}
// form elements : format:
//value - fill out as PHP CODE
// as a general rule, this uses name, rather than ID except on
// radio
$mergeWithName = false;
$id = $this->element->getAttribute('NAME');
// checkboxes need more work.. - at the momemnt assume one with the same value...
if (in_array(strtoupper($this->element->getAttribute('TYPE')), array('RADIO'))) {
if (!isset($_HTML_TEMPLATE_FLEXY['elements'][$id])) {
// register it.. - so we dont overwrite it...
$_HTML_TEMPLATE_FLEXY['elements'][$id] = false;
} else if ($_HTML_TEMPLATE_FLEXY['elements'][$id] != false) {
return HTML_Template_Flexy::raiseError(
"Error:{$_HTML_TEMPLATE_FLEXY['filename']} on Line {$this->element->line} ".
"in Tag <{$this->element->tag}>:<BR>".
"The Dynamic tag Name '$id' has already been used previously by ".
"tag <{$_HTML_TEMPLATE_FLEXY['elements'][$id]->tag}>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE
);
}
$id = $this->element->getAttribute('ID');
if (!$id) {
return HTML_Template_Flexy::raiseError("Error in {$_HTML_TEMPLATE_FLEXY['filename']} on Line {$this->element->line} <{$this->element->tag}>:
Radio Input's require an ID tag..",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
$mergeWithName = true;
}
if (!$id) {
return false;
}
return $this->compiler->appendPhp($this->getElementPhp( $id,$mergeWithName));
}
/**
* Deal with a TextArea tag - build a element object for it
*
* @return string | false = html output or ignore (just output the tag)
* @access public
*/
function parseTagTextArea()
{
return $this->compiler->appendPhp(
$this->getElementPhp( $this->element->getAttribute('NAME')));
}
/**
* Deal with Selects - build a element object for it (unless flexyignore is set)
*
*
* @return string | false = html output or ignore (just output the tag)
* @access public
*/
function parseTagSelect()
{
return $this->compiler->appendPhp(
$this->getElementPhp( $this->element->getAttribute('NAME')));
}
/**
* Reads an Form tag - and set up the element object header etc.
*
* @return string | false = html output or ignore (just output the tag)
* @access public
*/
function parseTagForm()
{
global $_HTML_TEMPLATE_FLEXY;
$copy = clone($this->element);
$copy->children = array();
$id = $this->element->getAttribute('NAME');
if (!$id) {
$id = 'form';
}
// this adds the element to the elements array.
$old = clone($this->element);
$this->element = $copy;
$this->getElementPhp($id);
$this->element= $old;
return
$this->compiler->appendPhp('echo $this->elements[\''.$id.'\']->toHtmlnoClose();') .
$this->element->compileChildren($this->compiler) .
$this->compiler->appendHtml( "</{$copy->oTag}>");
}
/**
* reWriteURL - can using the config option 'url_rewrite'
* format "from:to,from:to"
* only handle left rewrite.
* so
* "/images:/myroot/images"
* would change
* /images/xyz.gif to /myroot/images/xyz.gif
* /images/stylesheet/imagestyles.css to /myroot/images/stylesheet/imagestyles.css
* note /imagestyles did not get altered.
* will only work on strings (forget about doing /images/{someimage}
*
*
* @param string attribute to rewrite
* @return none
* @access public
*/
function reWriteURL($which)
{
global $_HTML_TEMPLATE_FLEXY;
if (!is_string($original = $this->element->getAttribute($which))) {
return;
}
if ($original == '') {
return;
}
if (empty($_HTML_TEMPLATE_FLEXY['currentOptions']['url_rewrite'])) {
return;
}
$bits = explode(",",$_HTML_TEMPLATE_FLEXY['currentOptions']['url_rewrite']);
$new = $original;
foreach ($bits as $bit) {
if (!strlen(trim($bit))) {
continue;
}
$parts = explode (':', $bit);
if (!isset($parts[1])) {
return HTML_Template_Flexy::raiseError('HTML_Template_Flexy: url_rewrite syntax incorrect'.
print_r(array($bits,$bits),true),null,HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
$new = preg_replace('#^'.$parts[0].'#',$parts[1], $new);
}
if ($original == $new) {
return;
}
$this->element->ucAttributes[$which] = '"'. $new . '"';
}
/**
* Convert flexy tokens to HTML_Template_Flexy_Elements.
*
* @param object token to convert into a element.
* @return object HTML_Template_Flexy_Element
* @access public
*/
function toElement($element) {
require_once 'HTML/Template/Flexy/Element.php';
$ret = new HTML_Template_Flexy_Element;
if (strtolower(get_class($element)) != 'html_template_flexy_token_tag') {
$this->compiler->addStringToGettext($element->value);
return $element->value;
}
$ret->tag = strtolower($element->tag);
$ats = $element->getAttributes();
if (isset($element->attributes['flexy:xhtml'])) {
$ats['flexy:xhtml'] = true;
}
foreach(array_keys($ats) as $a) {
$ret->attributes[$a] = $this->unHtmlEntities($ats[$a]);
}
//print_r($ats);
if (!$element->children) {
return $ret;
}
// children - normally to deal with <element>
//print_r($this->children);
foreach(array_keys($element->children) as $i) {
// not quite sure why this happens - but it does.
if (!is_object($element->children[$i])) {
continue;
}
$ret->children[] = $this->toElement($element->children[$i]);
}
return $ret;
}
/**
* do the reverse of htmlspecialchars on an attribute..
*
* copied from get-html-translation-table man page
*
* @param mixed from attribute values
*
* @return string return
* @access public
* @see see also methods.....
*/
function unHtmlEntities ($in)
{
if (!is_string($in)) {
return $in;
}
$trans_tbl = get_html_translation_table (HTML_ENTITIES);
$trans_tbl = array_flip ($trans_tbl);
$ret = strtr ($in, $trans_tbl);
return preg_replace('/&#(\d+);/me', "chr('\\1')",$ret);
}
}
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