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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 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@akkbhome.com> |
// | Authors: Tobias dot eberle at gmx dot de (include with vars) |
// +----------------------------------------------------------------------+
//
// $Id: Flexy.php 315533 2011-08-26 02:39:02Z alan_k $
//
// Handler code for the <flexy: namespace
//
/**
* the <flexy:XXXX namespace
*
*
* at present it handles
* <flexy:toJavascript flexy:prefix="Javascript_prefix" javscriptName="PHPvar" .....>
* <flexy:include src="xxx.htm">
*
*
*
* @version $Id: Flexy.php 315533 2011-08-26 02:39:02Z alan_k $
*/
class HTML_Template_Flexy_Compiler_Flexy_Flexy {
/**
* Parent Compiler for
*
* @var object HTML_Template_Flexy_Compiler
*
* @access public
*/
var $compiler;
/**
* The current element to parse..
*
* @var object
* @access public
*/
var $element;
/**
* toString - display tag, attributes, postfix and any code in attributes.
* Relays into namspace::method to get results..
*
*
* @see parent::toString()
*/
function toString($element)
{
list($namespace,$method) = explode(':',$element->oTag);
if (!strlen($method)) {
return '';
}
// things we dont handle...
if (!method_exists($this,$method.'ToString')) {
return '';
}
return $this->{$method.'ToString'}($element);
}
/**
* toJavascript handler
* <flexy:toJavascript flexy:prefix="some_prefix_" javascriptval="php.val" ....>
*
* @see parent::toString()
*/
function toJavascriptToString($element)
{
$ret = $this->compiler->appendPhp( "require_once 'HTML/Javascript/Convert.php';");
$ret .= $this->compiler->appendHTML("\n<script type='text/javascript'>\n");
$prefix = ''. $element->getAttribute('FLEXY:PREFIX');
foreach ($element->attributes as $k=>$v) {
// skip directives..
if (strpos($k,':')) {
continue;
}
if ($k == '/') {
continue;
}
$v = substr($v,1,-1);
$ret .= $this->compiler->appendPhp(
'$__tmp = HTML_Javascript_Convert::convertVar('.$element->toVar($v) .',\''.$prefix . $k.'\',true);'.
'echo (is_object($__tmp) && is_a($__tmp,"PEAR_Error")) ? ("<pre>".print_r($__tmp,true)."</pre>") : $__tmp;');
$ret .= $this->compiler->appendHTML("\n");
}
$ret .= $this->compiler->appendHTML("</script>");
return $ret;
}
/**
* toJavascript handler
* <flexy:toJSON javascriptval="php.val" ....>
*
* @see parent::toString()
*/
function toJSONToString($element)
{
// maybe should use extnsion_exists....
$ret = "";
if (!function_exists('json_encode')) {
$ret = $this->compiler->appendPhp(
'require_once "Services/JSON.php"; $_json = new Services_JSON();'
);
}
//$ret = $this->compiler->appendPhp( "require_once 'HTML/Javascript/Convert.php';");
$ret .= $this->compiler->appendHTML("\n<script type='text/javascript'>\n");
//$prefix = ''. $element->getAttribute('FLEXY:PREFIX');
foreach ($element->attributes as $k=>$v) {
// skip directives..
if (strpos($k,':')) {
continue;
}
if ($k == '/') {
continue;
}
$v = substr($v,1,-1);
if (function_exists('json_encode')) {
$ret .= $this->compiler->appendPhp(
'echo "var '. $k .'=" . json_encode('.$element->toVar($v).') . ";\n";'
);
$ret .= $this->compiler->appendHTML("\n");
continue;
}
$ret .= $this->compiler->appendPhp(
'echo "var '.$k.'=" . $_json->encode('.$element->toVar($v).') . ";\n";'
);
$ret .= $this->compiler->appendHTML("\n");
}
$ret .= $this->compiler->appendHTML("</script>");
return $ret;
}
/**
* include handler
* <flexy:include src="test.html">
* <flexy:include src="{test}">
* <flexy:include src="{test}.html">
* @see parent::toString()
*/
function includeToString($element)
{
// this is disabled by default...
// we ignore modifier pre/suffix
if (!isset($element->ucAttributes['SRC'])) {
return $this->compiler->appendHTML("<B>Flexy:Include without a src=filename (Line: {$element->line})</B>");
}
$arg = $element->ucAttributes['SRC'];
// it's a string so its easy to handle
switch (true) {
case is_string($arg):
if ($arg == '""') {
return $this->compiler->appendHTML("<B>Flexy:Include src attribute is empty. (Line: {$element->line})</B>");
}
$arg = "'". $element->getAttribute('SRC')."'";
break;
case is_array($arg): // it's an array -> strings and variables possible
$string = '"';
foreach($arg as $item) {
//it's a string
if (is_string($item)) {
if ($item != '' && $item != '"' && $item != '""' &&
$item != "''") {
$string .= $item;
}
} else {
//it's a variable
if (is_object($item) && is_a($item, 'HTML_Template_Flexy_Token_Var')) {
$value = $item->toVar($item->value);
if (is_object($value) && is_a($value, 'PEAR_Error')) {
return $value;
}
$string .= "{{$value}}";
}
}
}
$arg = $string . '"';
break;
default:
//something unexspected
return HTML_Template_Flexy::raiseError(
' Flexy:Include SRC needs a string or variable/method as value. '.
" Error on Line {$element->line} <{$element->tag}>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
// ideally it would be nice to embed the results of one template into another.
// however that would involve some complex test which would have to stat
// the child templates anyway..
// compile the child template....
// output... include $this->options['compiled_templates'] . $arg . $this->options['locale'] . '.php'
return $this->compiler->appendPHP( "\n".
"\$x = new HTML_Template_Flexy(\$this->options);\n".
"\$x->compile({$arg});\n".
"\$_t = function_exists('clone') ? clone(\$t) : \$t;\n".
"foreach(".$element->scopeVarsToArrayString(). " as \$k) {\n" .
" if (\$k != 't') { \$_t->\$k = \$\$k; }\n" .
"}\n" .
"\$x->outputObject(\$_t, \$this->elements);\n"
);
}
/**
* Convert flexy tokens to HTML_Template_Flexy_Elements.
*
* @param object token to convert into a element.
* @return object HTML_Template_Flexy_Element
* @access public
*/
function toElement($element)
{
return '';
}
/**
* Handler for User defined functions in templates..
* <flexy:function name="xxxxx">.... </flexy:block> // equivilant to function xxxxx() {
* <flexy:function call="{xxxxx}">.... </flexy:block> // equivilant to function {$xxxxx}() {
* <flexy:function call="xxxxx">.... </flexy:block> // equivilant to function {$xxxxx}() {
*
* This will not handle nested blocks initially!! (and may cause even more problems with
* if /foreach stuff..!!
*
* @param object token to convert into a element.
* @access public
*/
function functionToString($element)
{
if ($arg = $element->getAttribute('NAME')) {
// this is a really kludgy way of doing this!!!
// hopefully the new Template Package will have a sweeter method..
$GLOBALS['_HTML_TEMPLATE_FLEXY']['prefixOutput'] .=
$this->compiler->appendPHP(
"\nfunction _html_template_flexy_compiler_flexy_flexy_{$arg}(\$t,\$this) {\n").
$element->compileChildren($this->compiler) .
$this->compiler->appendPHP( "\n}\n");
return '';
}
if (!isset($element->ucAttributes['CALL'])) {
return HTML_Template_Flexy::raiseError(
' tag flexy:function needs an argument call or name'.
" Error on Line {$element->line} <{$element->tag}>",
null, HTML_TEMPLATE_FLEXY_ERROR_DIE);
}
// call is a stirng : nice and simple..
if (is_string($element->ucAttributes['CALL'])) {
$arg = $element->getAttribute('CALL');
return $this->compiler->appendPHP(
"if (function_exists('_html_template_flexy_compiler_flexy_flexy_{$arg}')) " .
" _html_template_flexy_compiler_flexy_flexy_{$arg}(\$t,\$this);");
}
// we make a big assumption here.. - it should really be error checked..
// that the {xxx} element is item 1 in the list...
$e=$element->ucAttributes['CALL'][1];
$add = $e->toVar($e->value);
if (is_object($add) && is_a($add,'PEAR_Error')) {
return $add;
}
return $this->compiler->appendPHP(
"if (function_exists('_html_template_flexy_compiler_flexy_flexy_'.{$add})) ".
"call_user_func_array('_html_template_flexy_compiler_flexy_flexy_'.{$add},array(\$t,\$this));");
}
/**
/**
* - A partial is a subtemplate to which you can pass variables.
* - You can define variables for the partial as xml attributes
* - You can provide context for the variables by adhering to the
* convention 'subtemplateVarName="templateVarName"'
* - See example below:
*
* <flexy:partial src="test.html" subtemplateVar1="var1"
* subtemplateVar2="object.var2" subtemplateVar3="#literal1#" />
*/
function partialToString($element)
{
$src = $element->getAttribute('SRC');
if (!$src) {
return $this->compiler->appendHTML("<B>Flexy:Subtemplate without a src=filename</B>");
}
/**
* Define parameters for partial (if set)
*/
$aAttribute = $element->getAttributes();
if (!is_array($aAttribute)) {
$aAttribute = array();
}
$aOutput = array();
foreach ($aAttribute as $name => $value) {
if ($name == 'src' || $name == '/') {
continue;
}
$varName = trim($name);
$varVal = trim($value);
$isLiteral = preg_match('@\#(.*)\#@',$varVal);
/**
* Provide supplied variables with subtemplate context
* - Deal with string literals (enclosed in # tags - flexy
* hack/convention).
* - Variable binding: Look in output object scope first, then
* template scope.
*/
if (!$isLiteral) {
$varVal = str_replace('.','->',trim($value));
$varVal = '(isset($t->' . $varVal. ')) ? $t->' . $varVal .' : $'. $varVal;
} else {
$varVal = preg_replace('@\#(.*)\#@','"\1"',$varVal);
}
$aOutput[$varName] = $varVal;
}
$varsOutput = "\n\$oOutput = clone \$t;\n";
foreach ($aOutput as $key=>$val) {
$varsOutput .= "\$oOutput->{$key} = {$val};\n";
}
/**
* Pass code to compiler
*/
return $this->compiler->appendPHP (
"
\$x = new HTML_Template_Flexy(\$this->options);
\$x->compile('{$src}');
{$varsOutput}
\$x->outputObject(\$oOutput, \$this->elements);
"
);
}
}
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