<?php
/*
* markdown_preview.php
*
* @(#) $Id: markdown_preview.php,v 1.1 2016/02/03 06:23:45 mlemos Exp $
*
*/
require('forms.php');
require('form_layout_vertical.php');
require('markup_parser.php');
require('markdown_parser.php');
$form = new form_class;
$form->NAME = 'preview_form';
$form->METHOD = 'POST';
$form->ACTION = '';
$form->debug = 'trigger_error';
$form->ShowAllErrors = 1;
$form->InvalidCLASS = 'invalid';
$form->AddInput(array(
'TYPE'=>'textarea',
'NAME'=>'data',
'ID'=>'data',
'ROWS'=>10,
'COLS'=>60,
'ValidateAsNotEmpty'=>1,
'ValidationErrorMessage'=>
'It was not specified any markdown to preview.',
'LABEL'=>'<u>D</u>ata',
'ACCESSKEY'=>'D'
));
$form->AddInput(array(
'TYPE'=>'textarea',
'NAME'=>'html',
'ID'=>'html',
'ROWS'=>10,
'COLS'=>60,
'LABEL'=>'HTML',
));
$form->AddInput(array(
'TYPE'=>'submit',
'NAME'=>'preview',
'ID'=>'preview',
'VALUE'=>'Preview',
'ACCESSKEY'=>'P'
));
$error = $warnings = $output = '';
$form->LoadInputValues($form->WasSubmitted('preview'));
$verify=array();
if($form->WasSubmitted('preview'))
{
if(($error_message = $form->Validate($verify)) === '')
{
$markdown = new markdown_parser_class;
$parameters=array(
'Data'=>$form->GetInputValue('data'),
);
if(($success = $markdown->StartParsing($parameters)))
{
$markup = new markup_parser_class;
do
{
if(!($success = $markdown->Parse($end, $elements)))
break;
$te = count($elements);
for($e = 0; $e < $te; ++$e)
{
if(!($success = $markup->RewriteElement($elements[$e], $html)))
break;
$output .= $html;
}
}
while(!$end);
if($success)
$success = $markdown->FinishParsing();
$done = 1;
}
if($success)
$form->SetInputValue('html', $output);
else
{
$error = $markdown->error.' at position '.$markdown->error_position;
if($markdown->track_lines
&& $markdown->GetPositionLine($markdown->error_position, $line, $column))
$error .= ' line '.$line.' column '.$column;
}
for($warning = 0, Reset($markdown->warnings); $warning < count($markdown->warnings); Next($markdown->warnings), $warning++)
{
$w = Key($markdown->warnings);
$warnings .= $markdown->warnings[$w].' at position '.$w;
if($markdown->track_lines
&& $markdown->GetPositionLine($w, $line, $column))
$warnings .= ' line '.$line.' column '.$column;
$warnings .= "\n";
}
}
else
{
$done = 0;
$error_message = HtmlEntities($error_message);
}
}
else
{
$error_message = '';
$done = 0;
}
$form->AddInput(array(
'ID'=>'layout',
'NAME'=>'layout',
'TYPE'=>'custom',
'CustomClass'=>'form_layout_vertical_class',
'Inputs'=>array(
'data',
'error',
'warnings',
'html',
'rendered',
'preview',
),
'Data'=>array(
'error'=>'<tr><td>Error:</td><td class="invalid">'.HtmlSpecialChars($error).'</td></tr>',
'warnings'=>'<tr><td>Warnings:</td><td class="invalid">'.nl2br(HtmlSpecialChars($warnings)).'</td></tr>',
'rendered'=>'<tr><td>Rendered:</td><td class="html">'.$output.'</td></tr>'
),
'Properties'=>array(
'rendered'=>array(
'Visible'=>$done,
),
'error'=>array(
'Visible'=>(strlen($error) && $done),
),
'warnings'=>array(
'Visible'=>(strlen($warnings) && $done),
),
'rendered'=>array(
'Visible'=>(strlen($output) && $done),
),
),
'InvalidMark'=>'[Verify]',
));
if(!$done)
{
if(strlen($error_message))
{
Reset($verify);
$focus=Key($verify);
}
else
$focus='data';
$form->ConnectFormToInput($focus, 'ONLOAD', 'Focus', array());
}
$onload=HtmlSpecialChars($form->PageLoad());
?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Markdown Preview</title>
<style type="text/css"><!--
.invalid { border-color: #ff0000; background-color: #ffcccc }
.html { background-color: #ffffff ; border-width: 1px; border-style: solid; padding: 2px; margin: 1px; }
body { background-color: #cccccc; }
.center { text-align: center; }
// --></style>
</head>
<body onload="<?php echo $onload; ?>">
<h1 class="center">Markdown Preview</h1>
<div align="center" style="max-width: 60">
<?php
$form->StartLayoutCapture();
$form->AddInputPart('layout');
$form->EndLayoutCapture();
$form->DisplayOutput();
?>
</div>
</body>
</html>
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