Scripts
UBB Creator (JS)
Ik heb al de nodige scripts voorbij zien komen die reeds gemaakte UBB code weten te 'parsen' naar geldige HTML code. Ik was echter opzoek naar een tool die helpt bij het genereren van UBB code. Na inspiratie op gedaan te hebben over Java Objecten n.a.v. het script JS Ajax class heb ik een simpele JS class geschreven om UBB te maken. De volgende tags worden tot nu toe ondersteund (toevoegingen zijn zeer welkom): -> f_type: none | PHP | CSS | SQL | JS | .... setQuote(f_name) // Add .. -> f_name: none | My Name Er zijn tevens functies toegevoegd om opgebouwde UBB code weer te geven als html (gebruik de 'submit'-knop om het resultaat te bekijken). Edit: - Ik heb de UBB parser aangepast zodat deze de gegenereerde UBB code beter verwerkt tot goede HTML. - M.b.v. Jelmer's reactie heb ik de 'IE versie' van __getRange iets kunnen versimpelen. - Ik heb wat extra functies toegevoegd zoals de 'clear()' en de __addslashes() functies.
ubb-creator-js
----- file: /js/ubbeditor.js -----
[code]
var UBBEditor = function (field_id)
{
// UBB Editor
this.__init(field_id);
};
UBBEditor.prototype =
{
/*
Properties
*/
'id' : '',
'resource' : null,
/*
Init function to detect resource
*/
'__init' : function(f_id)
{
if(document.getElementById)
{
try
{
this.id = f_id;
this.resource = document.getElementById(f_id);
}
catch(e0)
{
this.resource = null;
}
}
if(this.resource == null)
{
alert('The UBBEditor is not supported by your browser.');
}
},
/*
Utils
*/
// Replace string within a string
'__replace' : function(needle, replace_with, haystack)
{
if(haystack.length >= needle.length)
{
for(var i = 0; i <= (haystack.length - needle.length); i++)
{
if(haystack.substr(i, needle.length) == needle)
{
haystack = haystack.substr(0, i) + replace_with + haystack.substr(i + needle.length);
i = i + replace_with.length;
}
}
}
return haystack;
},
// Replace string within a string
'__addslashes' : function(haystack)
{
haystack = this.__replace('\\', '\\\\', haystack);
haystack = this.__replace('"', '\\"', haystack);
haystack = this.__replace('\'', '\\\'', haystack);
return haystack;
},
// Get range of the selection. Will return an array with start index and length.
'__getRange' : function()
{
var start = 0;
var length = 0;
if(this.resource != null)
{
// Set default range (cursor after last character in textarea)
start = this.resource.value.length;
length = 0;
if(document.selection)
{
// Set focus on textarea (to ignore selection outside the textarea)
this.resource.focus();
// The current selection
var range = document.selection.createRange();
// Store original text
var original_text = range.text;
// Insert ubb marker to find range
// var marker = '[ubb_marker_' + (Math.round(Math.rand() * 90000) + 10000) + ']';
var marker = '[ubb_marker_345381223746467363670497069367]';
range.text = marker;
// See if marker is found within the textarea
var index = this.resource.value.indexOf(marker);
if(index >= 0) // Text selected within textarea
{
start = index;
length = original_text.length;
// Restore original text in textarea
this.resource.value = this.__replace(marker, original_text, this.resource.value);
}
else // No text selected within textarea
{
// No selection found. Use default range.
}
}
else if((this.resource.selectionStart >= 0) && (this.resource.selectionEnd >= 0))
{
start = this.resource.selectionStart;
length = this.resource.selectionEnd - start;
}
}
return new Array(start, length);
},
'__getText' : function(f_start, f_length)
{
var text = '';
if(this.resource != null)
{
if(this.__getText.arguments.length < 1)
{
text = this.resource.value;
}
else if(this.__getText.arguments.length < 2)
{
text = this.resource.value.substr(f_start);
}
else
{
text = this.resource.value.substr(f_start, f_length);
}
}
return text;
},
'__setText' : function(f_string, f_start, f_length)
{
if(this.resource != null)
{
if(this.__setText.arguments.length < 1)
{
this.resource.value = '';
}
else if(this.__setText.arguments.length < 2)
{
this.resource.value = f_string;
}
else if(this.__setText.arguments.length < 3)
{
this.resource.value = this.resource.value.substr(0, f_start) + f_string;
}
else
{
this.resource.value = this.resource.value.substr(0, f_start) + f_string + this.resource.value.substr(f_start + f_length);
}
}
},
/*
UBB functions
Note: Some functions require arguments. If not provided, PROMPT() is used to gather missing info.
*/
// Clear textarea
'clear' : function()
{
if(this.resource != null)
{
this.resource.value = '';
}
else
{
alert('Invald resource for UBB Editor.');
}
},
// Add: [align]..[/align]
'setAlign' : function(f_align)
{
var range = this.__getRange();
if(this.setAlign.arguments.length < 1)
{
f_align = prompt('How should we align this text?\nEg: left, center, right, justify', 'left');
}
if(f_align == null)
{
// Ignore
}
else if(f_align == '')
{
// Ignore
}
else
{
this.__setText('[align="' + this.__addslashes(f_align) + '"]' + this.__getText(range[0], range[1]) + '[/align]', range[0], range[1]);
}
},
// Add: [b]..[/b]
'setBold' : function()
{
var range = this.__getRange();
this.__setText('[b]' + this.__getText(range[0], range[1]) + '[/b]', range[0], range[1]);
},
// Add: [code="f_type"]..[/code]
'setCode' : function(f_type)
{
var range = this.__getRange();
if(this.setCode.arguments.length < 1)
{
f_type = prompt('How should we treat this code?\nEg: PHP, SQL, HTML, JS', '');
}
if(f_type == null)
{
// Ignore
}
else if (f_type == '')
{
this.__setText('[code]' + this.__getText(range[0], range[1]) + '[/code]', range[0], range[1]);
}
else
{
this.__setText('[code="' + this.__addslashes(f_type) + '"]' + this.__getText(range[0], range[1]) + '[/code]', range[0], range[1]);
}
},
// Add: [color="f_color"]..[/color]
'setColor' : function(f_color)
{
var range = this.__getRange();
if(this.setColor.arguments.length == 0)
{
f_color = prompt('What color should we use?\nEg: #000000, rgb(0, 0, 0), black', '#000000');
}
if(f_color == null)
{
// Ignore
}
else if(f_color == '')
{
// Ignore
}
else
{
this.__setText('[color="' + this.__addslashes(f_color) + '"]' + this.__getText(range[0], range[1]) + '[/color]', range[0], range[1]);
}
},
// Add: [image="f_url"]..[/image]
'setImage' : function(f_url)
{
var range = this.__getRange();
if(this.setImage.arguments.length < 1)
{
f_url = prompt('What image should we add?\nEg: http://www.domain.tld/folder/image.jpg', 'http://');
}
if(f_url == null)
{
// Ignore
}
else if(f_url == '')
{
// Ignore
}
else
{
this.__setText('[image="' + this.__addslashes(f_url) + '"]' + this.__getText(range[0], range[1]) + '[/image]', range[0], range[1]);
}
},
// Add: [i]..[/i]
'setItalic' : function()
{
var range = this.__getRange();
this.__setText('[i]' + this.__getText(range[0], range[1]) + '[/i]', range[0], range[1]);
},
// Add: [quote="f_name"]..[/quote]
'setQuote' : function(f_name)
{
var range = this.__getRange();
if(this.setQuote.arguments.length == 0)
{
f_name = prompt('Who\'s quote are you using?', '');
}
if(f_name == null)
{
// Ignore
}
else if(f_name == '')
{
this.__setText('[quote]' + this.__getText(range[0], range[1]) + '[/quote]', range[0], range[1]);
}
else
{
this.__setText('[quote="' + this.__addslashes(f_name) + '"]' + this.__getText(range[0], range[1]) + '[/quote]', range[0], range[1]);
}
},
// Add: [s]..[/s]
'setStrike' : function()
{
var range = this.__getRange();
this.__setText('[s]' + this.__getText(range[0], range[1]) + '[/s]', range[0], range[1]);
},
// Add: [sub]..[/sub]
'setSubscript' : function()
{
var range = this.__getRange();
this.__setText('[sub]' + this.__getText(range[0], range[1]) + '[/sub]', range[0], range[1]);
},
// Add: [sup]..[/sup]
'setSuperscript' : function()
{
var range = this.__getRange();
this.__setText('[sup]' + this.__getText(range[0], range[1]) + '[/sup]', range[0], range[1]);
},
// Add replace selected text with given text
'setText' : function(f_string)
{
var range = this.__getRange();
if(this.setText.arguments.length < 1)
{
f_string = prompt('What text should use to overwrite the selection?\nEg: hello world', '');
}
if(f_string == null)
{
// Ignore
}
else if(f_string == '')
{
// Ignore
}
else
{
this.__setText(f_string, range[0], range[1]);
}
},
// Add: [u]..[/u]
'setUnderline' : function()
{
var range = this.__getRange();
this.__setText('[u]' + this.__getText(range[0], range[1]) + '[/u]', range[0], range[1]);
},
// Add: [url="f_url"]..[/url]
'setUrl' : function(f_url)
{
var range = this.__getRange();
if(this.setUrl.arguments.length == 0)
{
f_url = prompt('What url should we use?\nEg: http://www.domain.tld', 'http://');
}
if(f_url == null)
{
// Ignore
}
else if(f_url == '')
{
// Ignore
}
else
{
if(range[1] > 0)
{
this.__setText('[url="' + this.__addslashes(f_url) + '"]' + this.__getText(range[0], range[1]) + '[/url]', range[0], range[1]);
}
else
{
this.__setText('[url="' + this.__addslashes(f_url) + '"]' + f_url + '[/url]', range[0], range[1]);
}
}
}
};
[/code]
----- end of file -----
----- file: /index.php -----
[code]
<?php
// Escape HTML characters from a string
function escapeHtml($string, $ascii_save = false)
{
if($ascii_save)
{
$string = htmlentities($string);
// Catch not escaped characters that have HTML-friendly alternatives
$string = str_replace(chr(128), "€", $string);
$string = str_replace(chr(137), "‰", $string);
$string = str_replace(chr(153), "™", $string);
// Catch all other not escaped characters.
for($i = 128; $i < 160; $i++) // for($i = 128; $i < 256; $i++)
{
$string = str_replace(chr($i), "&#" . $i . ";", $string);
}
}
else
{
$string = str_replace("&", "&", $string);
$string = str_replace("<", "<", $string);
$string = str_replace(">", ">", $string);
$string = str_replace("\"", """, $string);
}
return $string;
}
// Change plain string to HTML code.
function stringToHtml($string)
{
// HTML syntax
$string = escapeHtml($string, true);
// Fix new lines
$string = str_replace("\r\n", "<br>", $string);
$string = str_replace("\n", "<br>", $string);
$string = str_replace("\r", "<br>", $string);
// Fix Tabs
$string = str_replace("\t", " ", $string);
return $string;
}
// Parse UBB code to HTML
function ubbToHtml($string)
{
$result = '';
// Stack with opened tags.
$open_tags = array();
$block = false;
// Slice string into UBB blocks
$matches = __splitUbb($string);
for($i = 0; $i < sizeof($matches); $i++)
{
if(strcasecmp($match = $matches[$i], "") !== 0)
{
if($block) // Block opened (don't process ubb within blocks)
{
if(strcasecmp($match, '[/' . $block["tag"] . ']') === 0) // Closing block?
{
$result .= '</' . $block["tag"] . '>';
// Remove tag from stack
array_pop($open_tags);
// Close block
$block = false;
}
else
{
$result .= stringToHtml($match);
}
}
else
{
if((strcasecmp(substr($match, 0, 2), '[/') === 0) && (strcasecmp(substr($match, -1), ']') === 0)) // Closing tag? [/tag]
{
$tag = strtolower(substr($match, 2, -1));
// Auto close unclosed tags
if((sizeof($open_tags) > 0) && in_array($tag, $open_tags))
{
$tag_found = false;
while($tag_found === false)
{
$last_tag = array_pop($open_tags);
if(strcasecmp($last_tag, $tag) === 0)
{
$tag_found = true;
}
if(strcasecmp($last_tag, 'align') === 0)
{
$result .= '</div>';
}
elseif(strcasecmp($last_tag, 'b') === 0)
{
$result .= '</b>';
}
elseif(strcasecmp($last_tag, 'color') === 0)
{
$result .= '</span>';
}
elseif(strcasecmp($last_tag, 'i') === 0)
{
$result .= '</i>';
}
elseif(strcasecmp($last_tag, 'image') === 0)
{
// $result .= '</img>';
}
elseif(strcasecmp($last_tag, 'quote') === 0)
{
$result .= '</blockquote>';
}
elseif(strcasecmp($last_tag, 's') === 0)
{
$result .= '</strike>';
}
elseif(strcasecmp($last_tag, 'sub') === 0)
{
$result .= '</sub>';
}
elseif(strcasecmp($last_tag, 'sup') === 0)
{
$result .= '</sup>';
}
elseif(strcasecmp($last_tag, 'u') === 0)
{
$result .= '</u>';
}
elseif(strcasecmp($last_tag, 'url') === 0)
{
$result .= '</a>';
}
}
}
else
{
// Ignore closing tag
}
}
elseif((strcasecmp(substr($match, 0, 1), '[') === 0) && (strcasecmp(substr($match, -1), ']') === 0)) // Opening tag? [tag="arg"]
{
if(($index = strpos($match, '=')) !== false)
{
$tag = strtolower(substr($match, 1, $index - 1));
$arg = (substr($match, $index + 2, -2));
// Remove escape character in $arg
$arg = str_replace('\\\\', '\\', $arg);
$arg = str_replace('\"', '"', $arg);
}
else
{
$tag = strtolower(substr($match, 1, -1));
$arg = '';
}
// Add tag to stack
$open_tags[] = $tag;
if(strcasecmp($tag, 'align') === 0)
{
$arg = strtolower($arg);
if(in_array($arg, array('left', 'center', 'right', 'justify')) === false)
{
$arg = 'left';
}
$result .= '<div style="text-align: ' . escapeHtml($arg) . ';">';
}
elseif(strcasecmp($tag, 'b') === 0)
{
$result .= '<b>';
}
elseif(strcasecmp($tag, 'code') === 0)
{
$result .= '<code' . ((strlen($arg) > 0) ? ' class="' . escapeHtml(strtolower($arg)) . '"' : '') . '>';
// Open block
$block = array("tag" => $tag, "arg" => $arg);
}
elseif(strcasecmp($tag, 'color') === 0)
{
if(strlen($arg) > 1)
{
$result .= '<span style="color: ' . escapeHtml(strtoupper($arg)) . ';">';
}
else
{
$result .= '<span>';
}
}
elseif(strcasecmp($tag, 'i') === 0)
{
$result .= '<i>';
}
elseif(strcasecmp($tag, 'image') === 0)
{
if(strcasecmp($matches[$i + 1], '[/image]') === 0) // Next match is closing tag
{
$result .= '<img alt="' . escapeHtml($arg) . '" border="0" src="' . escapeHtml($arg) . '">';
}
else // // Lookup image alt_text & title
{
$title = '';
while((($i + 1) < sizeof($matches)) && (strcasecmp($matches[$i + 1], '[/image]') !== 0))
{
$title .= $matches[$i + 1];
$i++;
}
$result .= '<img alt="' . escapeHtml($title) . '" border="0" src="' . escapeHtml($arg) . '" title="' . escapeHtml($title) . '">';
}
}
elseif(strcasecmp($tag, 'quote') === 0)
{
$result .= '<bockquote>';
if(strlen($arg) > 0)
{
$result .= '<em>' . escapeHtml($arg) . '</em><br>';
}
}
elseif(strcasecmp($tag, 's') === 0)
{
$result .= '<strike>';
}
elseif(strcasecmp($tag, 'sub') === 0)
{
$result .= '<sub>';
}
elseif(strcasecmp($tag, 'sup') === 0)
{
$result .= '<sup>';
}
elseif(strcasecmp($tag, 'u') === 0)
{
$result .= '<u>';
}
elseif(strcasecmp($tag, 'url') === 0)
{
$result .= '<a href="' . escapeHtml($arg) . '" target="_blank">';
}
else
{
// Ignore tag
$result .= stringToHtml($match);
}
}
else // Text
{
$result .= stringToHtml($match);
}
}
}
}
// Close unclosed tags
while(sizeof($open_tags) > 0)
{
$tag = array_pop($open_tags);
if(strcasecmp($last_tag, 'align') === 0)
{
$result .= '</div>';
}
elseif(strcasecmp($tag, 'b') === 0)
{
$result .= '</b>';
}
elseif(strcasecmp($tag, 'code') === 0)
{
$result .= '</code>';
}
elseif(strcasecmp($tag, 'color') === 0)
{
$result .= '</span>';
}
elseif(strcasecmp($tag, 'i') === 0)
{
$result .= '</i>';
}
elseif(strcasecmp($tag, 'image') === 0)
{
// $result .= '</img>';
}
elseif(strcasecmp($tag, 'quote') === 0)
{
$result .= '</blockquote>';
}
elseif(strcasecmp($tag, 's') === 0)
{
$result .= '</strike>';
}
elseif(strcasecmp($tag, 'sub') === 0)
{
$result .= '</sub>';
}
elseif(strcasecmp($tag, 'sup') === 0)
{
$result .= '</sup>';
}
elseif(strcasecmp($tag, 'u') === 0)
{
$result .= '</u>';
}
elseif(strcasecmp($tag, 'url') === 0)
{
$result .= '</a>';
}
}
return $result;
}
// Split on all available UBB tag
function __splitUbb($string)
{
$aResult = array();
$bEscaped = false;
$bTagged = false;
$bQuoted = false;
$sBuffer = '';
$iLength = strlen($string);
for($i = 0; $i < $iLength; $i++)
{
$char = $string[$i];
if((strcmp($char, '"') === 0) && ($bEscaped === false) && $bTagged) // Quotes have special meaning
{
if($bQuoted)
{
$bQuoted = false; // Set quoted flag
}
else
{
$bQuoted = true; // Set quoted flag
}
$sBuffer .= $char; // Add quote to buffer
}
elseif((strcmp($char, '[') === 0) && ($bQuoted === false)) // A new tag is starting
{
if(strlen($sBuffer) > 0)
{
$aResult[] = $sBuffer; // Add buffer to result
$sBuffer = ''; // Clear buffer
}
$sBuffer .= $char; // Add opening bracket to buffer
$bTagged = true; // Set tag flag
}
elseif((strcmp($char, ']') === 0) && ($bQuoted === false) && $bTagged) // A tag is closing
{
$sBuffer .= $char; // Add closing bracket to buffer
$aResult[] = $sBuffer; // Add buffer to result
$sBuffer = ''; // Clear buffer
$bTagged = false; // Set tag flag
}
else
{
// Catch escape character (backslash)
if((strcmp($char, "\\") === 0) && $bQuoted)
{
$bEscaped = ($bEscaped === false);
}
else
{
$bEscaped = false;
}
$sBuffer .= $char;
}
}
if(strlen($sBuffer) > 0)
{
$aResult[] = $sBuffer;
}
return $aResult;
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>UBB Editor</title>
<script type="text/javascript" src="js/ubbeditor.js"></script>
<link href="css/default.css" rel="stylesheet">
</head>
<body>
<h1>ubbToHtml() output:</h1>
<!--UBB_OUTPUT-->
<?php
if(isset($_POST["editor_content"]))
{
$code = stripslashes($_POST["editor_content"]);
}
else
{
$code = 'Hello world!';
}
echo ubbToHtml($code) . '';
?>
<!--/UBB_OUTPUT-->
<hr>
<h1>UBB Editor</h1>
<div class="ubb_menu">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><a href="javascript: my_ubb_editor.clear();" title="new"><img alt="new" border="0" src="images/new.gif"></a></td>
<td><img border="0" src="images/seperator.gif"></td>
<td><a href="javascript: my_ubb_editor.setBold();" title="bold"><img alt="[b]" border="0" src="images/bold.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setUnderline();" title="underline"><img alt="[u]" border="0" src="images/underline.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setItalic();" title="italic"><img alt="[i]" border="0" src="images/italic.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setStrike();" title="strike"><img alt="[s]" border="0" src="images/strike.gif"></a></td>
<td><img border="0" src="images/seperator.gif"></td>
<td><a href="javascript: my_ubb_editor.setColor();" title="font color"><img alt="[color]" border="0" src="images/fontcolor.gif"></a></td>
<td><img border="0" src="images/seperator.gif"></td>
<td><a href="javascript: my_ubb_editor.setAlign('left');" title="align left"><img alt="[align]" border="0" src="images/alignleft.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setAlign('center');" title="align center"><img alt="[align]" border="0" src="images/aligncenter.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setAlign('right');" title="align right"><img alt="[align]" border="0" src="images/alignright.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setAlign('justify');" title="align justify"><img alt="[align]" border="0" src="images/alignjustify.gif"></a></td>
<td><img border="0" src="images/seperator.gif"></td>
<td><a href="javascript: my_ubb_editor.setSubscript();" title="sub"><img alt="[sub]" border="0" src="images/subscript.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setSuperscript();" title="sup"><img alt="[sup]" border="0" src="images/superscript.gif"></a></td>
<td><img border="0" src="images/seperator.gif"></td>
<td><a href="javascript: my_ubb_editor.setImage();" title="image"><img alt="[image]" border="0" src="images/image.gif"></a></td>
<td><a href="javascript: my_ubb_editor.setUrl();" title="url"><img alt="[url]" border="0" src="images/link.gif"></a></td>
<td><img border="0" src="images/seperator.gif"></td>
<td><a href="javascript: my_ubb_editor.setCode();" title="code"><img alt="[code]" border="0" src="images/code.gif"></a></td>
<td><img border="0" src="images/seperator.gif"></td>
<td>
<!-- IMAGES -->
<select class="select" onchange="javascript: my_ubb_editor.setImage(this.value);">
<option value="">---------- images ----------</option>
<option value="http://www.domain.tld/001.jpg">plaatje 1</option>
<option value="http://www.domain.tld/002.jpg">plaatje 2</option>
<option value="http://www.domain.tld/003.jpg">plaatje 3</option>
</select>
</td>
<td>
<!-- LINKS -->
<select class="select" onchange="javascript: my_ubb_editor.setUrl(this.value);">
<option value="">---------- links ----------</option>
<option value="http://www.link1.tld/">link 1</option>
<option value="http://www.link2.tld/">link 2</option>
<option value="http://www.link3.tld/">link 3</option>
</select>
</td>
</tr>
</table>
</div>
<form action="" method="post">
<textarea id="editor_content" name="editor_content" style="width: 800; height: 300px;"><?php echo escapeHtml($code); ?></textarea>
<br>
<input name="submit" type="submit" value="submit">
</form>
<script type="text/javascript">
// Init editor
var my_ubb_editor = new UBBEditor('editor_content');
</script>
</body>
</html>
[/code]
----- end of file -----
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