public function parse($message)
{
// Don't waste cycles
if ($message === '') {
return '';
}
// Clean up any cut/paste issues we may have
$message = sanitizeMSCutPaste($message);
// @todo change this to <br> (it will break tests)
$message = str_replace("\n", '<br />', $message);
// @todo test to see if searching for '[' here makes sense
// if (strpos($this->message, '[') === false)
// return $this->message;
// I guess if we made it this far...
$this->message = $message;
//$msg_parts = $this->tokenize($message);
return $this->parseTokens($this->tokenize($message));
}
/**
* Parse the BBC in a string/message
*
* @param string $message
*
* @return string
*/
public function parse($message)
{
// The parser allows you to check some things about the message.
// If you move this later, you might be talking about the last message.
$this->resetParser();
$this->triggerEvent('pre_parsebbc', array(&$message, $this->bbc));
// Don't waste cycles
if ($message === '') {
return '';
}
// Clean up any cut/paste issues we may have
$message = sanitizeMSCutPaste($message);
$this->message = $message;
unset($message);
// @todo change this to <br> (it will break tests)
$this->message = str_replace("\n", '<br />', $this->message);
// Check if the message might have a link or email to save a bunch of parsing in autolink()
if ($this->autolink_enabled) {
$this->autolinker->setPossibleAutolink($this->message);
}
$this->possible_html = $this->html_enabled && strpos($this->message, '<') !== false;
// Don't load the HTML Parser unless we have to
if ($this->possible_html && $this->html_parser === null) {
$this->loadHtmlParser();
}
// This handles pretty much all of the parsing. It is a separate method so it is easier to override and profile.
$this->parse_loop();
// Close any remaining tags.
while ($tag = $this->closeOpenedTag()) {
$this->message .= $this->noSmileys($tag[Codes::ATTR_AFTER]);
}
if (isset($this->message[0]) && $this->message[0] === ' ') {
$this->message = substr_replace($this->message, ' ', 0, 1);
}
// Cleanup whitespace.
$this->message = str_replace(array(' ', '<br /> ', ' '), array(' ', '<br /> ', "\n"), $this->message);
// Finish footnotes if we have any.
if ($this->num_footnotes > 0) {
$this->handleFootnotes();
}
// Allow addons access to what the parser created
$message = $this->message;
$this->triggerEvent('post_parsebbc', array(&$message));
$this->message = $message;
return $this->message;
}
protected function cleanMessage()
{
$this->message = Util::htmlspecialchars($this->message, ENT_QUOTES, 'UTF-8', true);
$this->message = strtr($this->message, array("\r" => '', '[]' => '[]', '['' => '[''));
// Clean up any cut/paste issues we may have
$this->message = sanitizeMSCutPaste($this->message);
}
/**
* Parse bulletin board code in a string, as well as smileys optionally.
*
* What it does:
* - only parses bbc tags which are not disabled in disabledBBC.
* - handles basic HTML, if enablePostHTML is on.
* - caches the from/to replace regular expressions so as not to reload them every time a string is parsed.
* - only parses smileys if smileys is true.
* - does nothing if the enableBBC setting is off.
* - uses the cache_id as a unique identifier to facilitate any caching it may do.
* - returns the modified message.
*
* @param string|false $message if false return list of enabled bbc codes
* @param bool|string $smileys = true
* @param string $cache_id = ''
* @param string[]|null $parse_tags array of tags to parse, null for all
* @return string
*/
function parse_bbc($message, $smileys = true, $cache_id = '', $parse_tags = array())
{
global $txt, $scripturl, $context, $modSettings, $user_info;
// Static variables can't be touched by the benchmark script.
// Instead of doing eval() (which I should do), I am just going to make them globals and access them like that.
//static $bbc_codes = array(), $itemcodes = array(), $no_autolink_tags = array();
//static $disabled, $default_disabled, $parse_tag_cache;
global $bbc_codes, $itemcodes, $no_autolink_tags;
global $disabled, $default_disabled, $parse_tag_cache;
// Don't waste cycles
if ($message === '') {
return '';
}
// Clean up any cut/paste issues we may have
$message = sanitizeMSCutPaste($message);
// If the load average is too high, don't parse the BBC.
if (!empty($modSettings['bbc']) && $modSettings['current_load'] >= $modSettings['bbc']) {
$context['disabled_parse_bbc'] = true;
return $message;
}
if ($smileys !== null && ($smileys == '1' || $smileys == '0')) {
$smileys = (bool) $smileys;
}
if (empty($modSettings['enableBBC']) && $message !== false) {
if ($smileys === true) {
parsesmileys($message);
}
return $message;
}
// Allow addons access before entering the main parse_bbc loop
call_integration_hook('integrate_pre_parsebbc', array(&$message, &$smileys, &$cache_id, &$parse_tags));
// Sift out the bbc for a performance improvement.
if (empty($bbc_codes) || $message === false) {
if (!empty($modSettings['disabledBBC'])) {
$temp = explode(',', strtolower($modSettings['disabledBBC']));
foreach ($temp as $tag) {
$disabled[trim($tag)] = true;
}
}
/* The following bbc are formatted as an array, with keys as follows:
tag: the tag's name - should be lowercase!
type: one of...
- (missing): [tag]parsed content[/tag]
- unparsed_equals: [tag=xyz]parsed content[/tag]
- parsed_equals: [tag=parsed data]parsed content[/tag]
- unparsed_content: [tag]unparsed content[/tag]
- closed: [tag], [tag/], [tag /]
- unparsed_commas: [tag=1,2,3]parsed content[/tag]
- unparsed_commas_content: [tag=1,2,3]unparsed content[/tag]
- unparsed_equals_content: [tag=...]unparsed content[/tag]
parameters: an optional array of parameters, for the form
[tag abc=123]content[/tag]. The array is an associative array
where the keys are the parameter names, and the values are an
array which may contain the following:
- match: a regular expression to validate and match the value.
- quoted: true if the value should be quoted.
- validate: callback to evaluate on the data, which is $data.
- value: a string in which to replace $1 with the data.
either it or validate may be used, not both.
- optional: true if the parameter is optional.
test: a regular expression to test immediately after the tag's
'=', ' ' or ']'. Typically, should have a \] at the end.
Optional.
content: only available for unparsed_content, closed,
unparsed_commas_content, and unparsed_equals_content.
$1 is replaced with the content of the tag. Parameters
are replaced in the form {param}. For unparsed_commas_content,
$2, $3, ..., $n are replaced.
before: only when content is not used, to go before any
content. For unparsed_equals, $1 is replaced with the value.
For unparsed_commas, $1, $2, ..., $n are replaced.
after: similar to before in every way, except that it is used
when the tag is closed.
disabled_content: used in place of content when the tag is
disabled. For closed, default is '', otherwise it is '$1' if
block_level is false, '<div>$1</div>' elsewise.
disabled_before: used in place of before when disabled. Defaults
to '<div>' if block_level, '' if not.
disabled_after: used in place of after when disabled. Defaults
to '</div>' if block_level, '' if not.
block_level: set to true the tag is a "block level" tag, similar
to HTML. Block level tags cannot be nested inside tags that are
not block level, and will not be implicitly closed as easily.
One break following a block level tag may also be removed.
trim: if set, and 'inside' whitespace after the begin tag will be
removed. If set to 'outside', whitespace after the end tag will
meet the same fate.
validate: except when type is missing or 'closed', a callback to
validate the data as $data. Depending on the tag's type, $data
may be a string or an array of strings (corresponding to the
replacement.)
quoted: when type is 'unparsed_equals' or 'parsed_equals' only,
may be not set, 'optional', or 'required' corresponding to if
the content may be quoted. This allows the parser to read
[tag="abc]def[esdf]"] properly.
require_parents: an array of tag names, or not set. If set, the
enclosing tag *must* be one of the listed tags, or parsing won't
occur.
require_children: similar to require_parents, if set children
won't be parsed if they are not in the list.
disallow_children: similar to, but very different from,
require_children, if it is set the listed tags will not be
parsed inside the tag.
disallow_parents: similar to, but very different from,
require_parents, if it is set the listed tags will not be
parsed inside the tag.
parsed_tags_allowed: an array restricting what BBC can be in the
parsed_equals parameter, if desired.
*/
$codes = array(array('tag' => 'abbr', 'type' => 'unparsed_equals', 'before' => '<abbr title="$1">', 'after' => '</abbr>', 'quoted' => 'optional', 'disabled_after' => ' ($1)'), array('tag' => 'anchor', 'type' => 'unparsed_equals', 'test' => '[#]?([A-Za-z][A-Za-z0-9_\\-]*)\\]', 'before' => '<span id="post_$1">', 'after' => '</span>'), array('tag' => 'b', 'before' => '<strong class="bbc_strong">', 'after' => '</strong>'), array('tag' => 'br', 'type' => 'closed', 'content' => '<br />'), array('tag' => 'center', 'before' => '<div class="centertext">', 'after' => '</div>', 'block_level' => true), array('tag' => 'code', 'type' => 'unparsed_content', 'content' => '<div class="codeheader">' . $txt['code'] . ': <a href="javascript:void(0);" onclick="return elkSelectText(this);" class="codeoperation">' . $txt['code_select'] . '</a></div><pre class="bbc_code prettyprint">$1</pre>', 'validate' => isset($disabled['code']) ? null : function (&$tag, &$data, $disabled) {
if (!isset($disabled['code'])) {
$data = str_replace("\t", "<span class=\"tab\">\t</span>", $data);
}
}, 'block_level' => true), array('tag' => 'code', 'type' => 'unparsed_equals_content', 'content' => '<div class="codeheader">' . $txt['code'] . ': ($2) <a href="#" onclick="return elkSelectText(this);" class="codeoperation">' . $txt['code_select'] . '</a></div><pre class="bbc_code prettyprint">$1</pre>', 'validate' => isset($disabled['code']) ? null : function (&$tag, &$data, $disabled) {
if (!isset($disabled['code'])) {
$data[0] = str_replace("\t", "<span class=\"tab\">\t</span>", $data[0]);
}
}, 'block_level' => true), array('tag' => 'color', 'type' => 'unparsed_equals', 'test' => '(#[\\da-fA-F]{3}|#[\\da-fA-F]{6}|[A-Za-z]{1,20}|rgb\\((?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\s?,\\s?){2}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\))\\]', 'before' => '<span style="color: $1;" class="bbc_color">', 'after' => '</span>'), array('tag' => 'email', 'type' => 'unparsed_content', 'content' => '<a href="mailto:$1" class="bbc_email">$1</a>', 'validate' => function (&$tag, &$data, $disabled) {
$data = strtr($data, array('<br />' => ''));
}), array('tag' => 'email', 'type' => 'unparsed_equals', 'before' => '<a href="mailto:$1" class="bbc_email">', 'after' => '</a>', 'disallow_children' => array('email', 'ftp', 'url', 'iurl'), 'disabled_after' => ' ($1)'), array('tag' => 'footnote', 'before' => '<sup class="bbc_footnotes">%fn%', 'after' => '%fn%</sup>', 'disallow_parents' => array('footnote', 'code', 'anchor', 'url', 'iurl'), 'disallow_before' => '', 'disallow_after' => '', 'block_level' => true), array('tag' => 'font', 'type' => 'unparsed_equals', 'test' => '[A-Za-z0-9_,\\-\\s]+?\\]', 'before' => '<span style="font-family: $1;" class="bbc_font">', 'after' => '</span>'), array('tag' => 'ftp', 'type' => 'unparsed_content', 'content' => '<a href="$1" class="bbc_ftp new_win" target="_blank">$1</a>', 'validate' => function (&$tag, &$data, $disabled) {
$data = strtr($data, array('<br />' => ''));
if (strpos($data, 'ftp://') !== 0 && strpos($data, 'ftps://') !== 0) {
$data = 'ftp://' . $data;
}
}), array('tag' => 'ftp', 'type' => 'unparsed_equals', 'before' => '<a href="$1" class="bbc_ftp new_win" target="_blank">', 'after' => '</a>', 'validate' => function (&$tag, &$data, $disabled) {
if (strpos($data, 'ftp://') !== 0 && strpos($data, 'ftps://') !== 0) {
$data = 'ftp://' . $data;
}
}, 'disallow_children' => array('email', 'ftp', 'url', 'iurl'), 'disabled_after' => ' ($1)'), array('tag' => 'hr', 'type' => 'closed', 'content' => '<hr />', 'block_level' => true), array('tag' => 'i', 'before' => '<em>', 'after' => '</em>'), array('tag' => 'img', 'type' => 'unparsed_content', 'parameters' => array('alt' => array('optional' => true), 'width' => array('optional' => true, 'value' => 'width:100%;max-width:$1px;', 'match' => '(\\d+)'), 'height' => array('optional' => true, 'value' => 'max-height:$1px;', 'match' => '(\\d+)')), 'content' => '<img src="$1" alt="{alt}" style="{width}{height}" class="bbc_img resized" />', 'validate' => function (&$tag, &$data, $disabled) {
$data = strtr($data, array('<br />' => ''));
if (strpos($data, 'http://') !== 0 && strpos($data, 'https://') !== 0) {
$data = 'http://' . $data;
}
}, 'disabled_content' => '($1)'), array('tag' => 'img', 'type' => 'unparsed_content', 'content' => '<img src="$1" alt="" class="bbc_img" />', 'validate' => function (&$tag, &$data, $disabled) {
$data = strtr($data, array('<br />' => ''));
if (strpos($data, 'http://') !== 0 && strpos($data, 'https://') !== 0) {
$data = 'http://' . $data;
}
}, 'disabled_content' => '($1)'), array('tag' => 'iurl', 'type' => 'unparsed_content', 'content' => '<a href="$1" class="bbc_link">$1</a>', 'validate' => function (&$tag, &$data, $disabled) {
$data = strtr($data, array('<br />' => ''));
if (strpos($data, 'http://') !== 0 && strpos($data, 'https://') !== 0) {
$data = 'http://' . $data;
}
}), array('tag' => 'iurl', 'type' => 'unparsed_equals', 'before' => '<a href="$1" class="bbc_link">', 'after' => '</a>', 'validate' => function (&$tag, &$data, $disabled) {
if ($data[0] === '#') {
$data = '#post_' . substr($data, 1);
} elseif (strpos($data, 'http://') !== 0 && strpos($data, 'https://') !== 0) {
$data = 'http://' . $data;
}
}, 'disallow_children' => array('email', 'ftp', 'url', 'iurl'), 'disabled_after' => ' ($1)'), array('tag' => 'left', 'before' => '<div style="text-align: left;">', 'after' => '</div>', 'block_level' => true), array('tag' => 'li', 'before' => '<li>', 'after' => '</li>', 'trim' => 'outside', 'require_parents' => array('list'), 'block_level' => true, 'disabled_before' => '', 'disabled_after' => '<br />'), array('tag' => 'list', 'before' => '<ul class="bbc_list">', 'after' => '</ul>', 'trim' => 'inside', 'require_children' => array('li', 'list'), 'block_level' => true), array('tag' => 'list', 'parameters' => array('type' => array('match' => '(none|disc|circle|square|decimal|decimal-leading-zero|lower-roman|upper-roman|lower-alpha|upper-alpha|lower-greek|lower-latin|upper-latin|hebrew|armenian|georgian|cjk-ideographic|hiragana|katakana|hiragana-iroha|katakana-iroha)')), 'before' => '<ul class="bbc_list" style="list-style-type: {type};">', 'after' => '</ul>', 'trim' => 'inside', 'require_children' => array('li'), 'block_level' => true), array('tag' => 'me', 'type' => 'unparsed_equals', 'before' => '<div class="meaction"> $1 ', 'after' => '</div>', 'quoted' => 'optional', 'block_level' => true, 'disabled_before' => '/me ', 'disabled_after' => '<br />'), array('tag' => 'member', 'type' => 'unparsed_equals', 'test' => '[\\d*]', 'before' => '<span class="bbc_mention"><a href="' . $scripturl . '?action=profile;u=$1">@', 'after' => '</a></span>', 'disabled_before' => '@', 'disabled_after' => ''), array('tag' => 'nobbc', 'type' => 'unparsed_content', 'content' => '$1'), array('tag' => 'pre', 'before' => '<pre class="bbc_pre">', 'after' => '</pre>'), array('tag' => 'quote', 'before' => '<div class="quoteheader">' . $txt['quote'] . '</div><blockquote>', 'after' => '</blockquote>', 'block_level' => true), array('tag' => 'quote', 'parameters' => array('author' => array('match' => '(.{1,192}?)', 'quoted' => true)), 'before' => '<div class="quoteheader">' . $txt['quote_from'] . ': {author}</div><blockquote>', 'after' => '</blockquote>', 'block_level' => true), array('tag' => 'quote', 'type' => 'parsed_equals', 'before' => '<div class="quoteheader">' . $txt['quote_from'] . ': $1</div><blockquote>', 'after' => '</blockquote>', 'quoted' => 'optional', 'parsed_tags_allowed' => array('url', 'iurl', 'ftp'), 'block_level' => true), array('tag' => 'quote', 'parameters' => array('author' => array('match' => '([^<>]{1,192}?)'), 'link' => array('match' => '(?:board=\\d+;)?((?:topic|threadid)=[\\dmsg#\\./]{1,40}(?:;start=[\\dmsg#\\./]{1,40})?|msg=\\d{1,40}|action=profile;u=\\d+)'), 'date' => array('match' => '(\\d+)', 'validate' => 'htmlTime')), 'before' => '<div class="quoteheader"><a href="' . $scripturl . '?{link}">' . $txt['quote_from'] . ': {author} ' . ($modSettings['todayMod'] == 3 ? ' - ' : $txt['search_on']) . ' {date}</a></div><blockquote>', 'after' => '</blockquote>', 'block_level' => true), array('tag' => 'quote', 'parameters' => array('author' => array('match' => '(.{1,192}?)')), 'before' => '<div class="quoteheader">' . $txt['quote_from'] . ': {author}</div><blockquote>', 'after' => '</blockquote>', 'block_level' => true), array('tag' => 'right', 'before' => '<div style="text-align: right;">', 'after' => '</div>', 'block_level' => true), array('tag' => 's', 'before' => '<del>', 'after' => '</del>'), array('tag' => 'size', 'type' => 'unparsed_equals', 'test' => '([1-9][\\d]?p[xt]|small(?:er)?|large[r]?|x[x]?-(?:small|large)|medium|(0\\.[1-9]|[1-9](\\.[\\d][\\d]?)?)?em)\\]', 'before' => '<span style="font-size: $1;" class="bbc_size">', 'after' => '</span>', 'disallow_parents' => array('size'), 'disallow_before' => '<span>', 'disallow_after' => '</span>'), array('tag' => 'size', 'type' => 'unparsed_equals', 'test' => '[1-7]\\]', 'before' => '<span style="font-size: $1;" class="bbc_size">', 'after' => '</span>', 'validate' => function (&$tag, &$data, $disabled) {
$sizes = array(1 => 0.7, 2 => 1.0, 3 => 1.35, 4 => 1.45, 5 => 2.0, 6 => 2.65, 7 => 3.95);
$data = $sizes[$data] . 'em';
}, 'disallow_parents' => array('size'), 'disallow_before' => '<span>', 'disallow_after' => '</span>'), array('tag' => 'spoiler', 'before' => '<span class="spoilerheader">' . $txt['spoiler'] . '</span><div class="spoiler"><div class="bbc_spoiler" style="display: none;">', 'after' => '</div></div>', 'block_level' => true), array('tag' => 'sub', 'before' => '<sub>', 'after' => '</sub>'), array('tag' => 'sup', 'before' => '<sup>', 'after' => '</sup>'), array('tag' => 'table', 'before' => '<div class="bbc_table_container"><table class="bbc_table">', 'after' => '</table></div>', 'trim' => 'inside', 'require_children' => array('tr'), 'block_level' => true), array('tag' => 'td', 'before' => '<td>', 'after' => '</td>', 'require_parents' => array('tr'), 'trim' => 'outside', 'block_level' => true, 'disabled_before' => '', 'disabled_after' => ''), array('tag' => 'th', 'before' => '<th>', 'after' => '</th>', 'require_parents' => array('tr'), 'trim' => 'outside', 'block_level' => true, 'disabled_before' => '', 'disabled_after' => ''), array('tag' => 'tr', 'before' => '<tr>', 'after' => '</tr>', 'require_parents' => array('table'), 'require_children' => array('td', 'th'), 'trim' => 'both', 'block_level' => true, 'disabled_before' => '', 'disabled_after' => ''), array('tag' => 'tt', 'before' => '<span class="bbc_tt">', 'after' => '</span>'), array('tag' => 'u', 'before' => '<span class="bbc_u">', 'after' => '</span>'), array('tag' => 'url', 'type' => 'unparsed_content', 'content' => '<a href="$1" class="bbc_link" target="_blank">$1</a>', 'validate' => function (&$tag, &$data, $disabled) {
$data = strtr($data, array('<br />' => ''));
if (strpos($data, 'http://') !== 0 && strpos($data, 'https://') !== 0) {
$data = 'http://' . $data;
}
}), array('tag' => 'url', 'type' => 'unparsed_equals', 'before' => '<a href="$1" class="bbc_link" target="_blank">', 'after' => '</a>', 'validate' => function (&$tag, &$data, $disabled) {
if (strpos($data, 'http://') !== 0 && strpos($data, 'https://') !== 0) {
$data = 'http://' . $data;
}
}, 'disallow_children' => array('email', 'ftp', 'url', 'iurl'), 'disabled_after' => ' ($1)'));
// Inside these tags autolink is not recommendable.
$no_autolink_tags = array('url', 'iurl', 'ftp', 'email');
// So the parser won't skip them.
$itemcodes = array('*' => 'disc', '@' => 'disc', '+' => 'square', 'x' => 'square', '#' => 'decimal', '0' => 'decimal', 'o' => 'circle', 'O' => 'circle');
// Let addons add new BBC without hassle.
call_integration_hook('integrate_bbc_codes', array(&$codes, &$no_autolink_tags, &$itemcodes));
// This is mainly for the bbc manager, so it's easy to add tags above. Custom BBC should be added above this line.
if ($message === false) {
if (isset($temp_bbc)) {
$bbc_codes = $temp_bbc;
}
return $codes;
}
if (!isset($disabled['li']) && !isset($disabled['list'])) {
foreach ($itemcodes as $c => $dummy) {
$bbc_codes[$c] = array();
}
}
foreach ($codes as $code) {
$bbc_codes[substr($code['tag'], 0, 1)][] = $code;
}
}
// If we are not doing every enabled tag then create a cache for this parsing group.
if ($parse_tags !== array() && is_array($parse_tags)) {
$temp_bbc = $bbc_codes;
$tags_cache_id = implode(',', $parse_tags);
if (!isset($default_disabled)) {
$default_disabled = isset($disabled) ? $disabled : array();
}
// Already cached, use it, otherwise create it
if (isset($parse_tag_cache[$tags_cache_id])) {
list($bbc_codes, $disabled) = $parse_tag_cache[$tags_cache_id];
} else {
foreach ($bbc_codes as $key_bbc => $bbc) {
foreach ($bbc as $key_code => $code) {
if (!in_array($code['tag'], $parse_tags)) {
$disabled[$code['tag']] = true;
unset($bbc_codes[$key_bbc][$key_code]);
}
}
}
$parse_tag_cache[$tags_cache_id] = array($bbc_codes, $disabled);
}
} elseif (isset($default_disabled)) {
$disabled = $default_disabled;
}
// Shall we take the time to cache this?
if ($cache_id != '' && !empty($modSettings['cache_enable']) && ($modSettings['cache_enable'] >= 2 && isset($message[1000]) || isset($message[2400])) && empty($parse_tags)) {
// It's likely this will change if the message is modified.
$cache_key = 'parse:' . $cache_id . '-' . md5(md5($message) . '-' . $smileys . (empty($disabled) ? '' : implode(',', array_keys($disabled))) . serialize($context['browser']) . $txt['lang_locale'] . $user_info['time_offset'] . $user_info['time_format']);
if (($temp = cache_get_data($cache_key, 240)) != null) {
return $temp;
}
$cache_t = microtime(true);
}
if ($smileys === 'print') {
// Colors can't well be displayed... supposed to be black and white.
$disabled['color'] = true;
$disabled['me'] = true;
// Links are useless on paper... just show the link.
$disabled['url'] = true;
$disabled['iurl'] = true;
$disabled['email'] = true;
// @todo Change maybe?
if (!isset($_GET['images'])) {
$disabled['img'] = true;
}
// @todo Interface/setting to add more?
}
$open_tags = array();
$message = strtr($message, array("\n" => '<br />'));
// The non-breaking-space looks a bit different each time.
$non_breaking_space = '\\x{A0}';
$pos = -1;
while ($pos !== false) {
$last_pos = isset($last_pos) ? max($pos, $last_pos) : $pos;
$pos = strpos($message, '[', $pos + 1);
// Failsafe.
if ($pos === false || $last_pos > $pos) {
$pos = strlen($message) + 1;
}
// Can't have a one letter smiley, URL, or email! (sorry.)
if ($last_pos < $pos - 1) {
// Make sure the $last_pos is not negative.
$last_pos = max($last_pos, 0);
// Pick a block of data to do some raw fixing on.
$data = substr($message, $last_pos, $pos - $last_pos);
// Take care of some HTML!
if (!empty($modSettings['enablePostHTML']) && strpos($data, '<') !== false) {
$data = preg_replace('~<a\\s+href=((?:")?)((?:https?://|ftps?://|mailto:)\\S+?)\\1>~i', '[url=$2]', $data);
$data = preg_replace('~</a>~i', '[/url]', $data);
// <br /> should be empty.
$empty_tags = array('br', 'hr');
foreach ($empty_tags as $tag) {
$data = str_replace(array('<' . $tag . '>', '<' . $tag . '/>', '<' . $tag . ' />'), '[' . $tag . ' /]', $data);
}
// b, u, i, s, pre... basic tags.
$closable_tags = array('b', 'u', 'i', 's', 'em', 'ins', 'del', 'pre', 'blockquote');
foreach ($closable_tags as $tag) {
$diff = substr_count($data, '<' . $tag . '>') - substr_count($data, '</' . $tag . '>');
$data = strtr($data, array('<' . $tag . '>' => '<' . $tag . '>', '</' . $tag . '>' => '</' . $tag . '>'));
if ($diff > 0) {
$data = substr($data, 0, -1) . str_repeat('</' . $tag . '>', $diff) . substr($data, -1);
}
}
// Do <img ... /> - with security... action= -> action-.
preg_match_all('~<img\\s+src=((?:")?)((?:https?://|ftps?://)\\S+?)\\1(?:\\s+alt=(".*?"|\\S*?))?(?:\\s?/)?>~i', $data, $matches, PREG_PATTERN_ORDER);
if (!empty($matches[0])) {
$replaces = array();
foreach ($matches[2] as $match => $imgtag) {
$alt = empty($matches[3][$match]) ? '' : ' alt=' . preg_replace('~^"|"$~', '', $matches[3][$match]);
// Remove action= from the URL - no funny business, now.
if (preg_match('~action(=|%3d)(?!dlattach)~i', $imgtag) != 0) {
$imgtag = preg_replace('~action(?:=|%3d)(?!dlattach)~i', 'action-', $imgtag);
}
// Check if the image is larger than allowed.
// @todo - We should seriously look at deprecating some of this in favour of CSS resizing.
if (!empty($modSettings['max_image_width']) && !empty($modSettings['max_image_height'])) {
// For images, we'll want this.
require_once SUBSDIR . '/Attachments.subs.php';
list($width, $height) = url_image_size($imgtag);
if (!empty($modSettings['max_image_width']) && $width > $modSettings['max_image_width']) {
$height = (int) ($modSettings['max_image_width'] * $height / $width);
$width = $modSettings['max_image_width'];
}
if (!empty($modSettings['max_image_height']) && $height > $modSettings['max_image_height']) {
$width = (int) ($modSettings['max_image_height'] * $width / $height);
$height = $modSettings['max_image_height'];
}
// Set the new image tag.
$replaces[$matches[0][$match]] = '[img width=' . $width . ' height=' . $height . $alt . ']' . $imgtag . '[/img]';
} else {
$replaces[$matches[0][$match]] = '[img' . $alt . ']' . $imgtag . '[/img]';
}
}
$data = strtr($data, $replaces);
}
}
if (!empty($modSettings['autoLinkUrls'])) {
// Are we inside tags that should be auto linked?
$no_autolink_area = false;
if (!empty($open_tags)) {
foreach ($open_tags as $open_tag) {
if (in_array($open_tag['tag'], $no_autolink_tags)) {
$no_autolink_area = true;
}
}
}
// Don't go backwards.
// @todo Don't think is the real solution....
$lastAutoPos = isset($lastAutoPos) ? $lastAutoPos : 0;
if ($pos < $lastAutoPos) {
$no_autolink_area = true;
}
$lastAutoPos = $pos;
if (!$no_autolink_area) {
// Parse any URLs.... have to get rid of the @ problems some things cause... stupid email addresses.
if (!isset($disabled['url']) && (strpos($data, '://') !== false || strpos($data, 'www.') !== false) && strpos($data, '[url') === false) {
// Switch out quotes really quick because they can cause problems.
$data = strtr($data, array(''' => '\'', ' ' => " ", '"' => '>">', '"' => '<"<', '<' => '<lt<'));
// Only do this if the preg survives.
if (is_string($result = preg_replace(array('~(?<=[\\s>\\.(;\'"]|^)((?:http|https)://[\\w\\-_%@:|]+(?:\\.[\\w\\-_%]+)*(?::\\d+)?(?:/[\\p{L}\\p{N}\\-_\\~%\\.@!,\\?&;=#(){}+:\'\\\\]*)*[/\\p{L}\\p{N}\\-_\\~%@\\?;=#}\\\\])~ui', '~(?<=[\\s>\\.(;\'"]|^)((?:ftp|ftps)://[\\w\\-_%@:|]+(?:\\.[\\w\\-_%]+)*(?::\\d+)?(?:/[\\w\\-_\\~%\\.@,\\?&;=#(){}+:\'\\\\]*)*[/\\w\\-_\\~%@\\?;=#}\\\\])~i', '~(?<=[\\s>(\'<]|^)(www(?:\\.[\\w\\-_]+)+(?::\\d+)?(?:/[\\p{L}\\p{N}\\-_\\~%\\.@!,\\?&;=#(){}+:\'\\\\]*)*[/\\p{L}\\p{N}\\-_\\~%@\\?;=#}\\\\])~ui'), array('[url]$1[/url]', '[ftp]$1[/ftp]', '[url=http://$1]$1[/url]'), $data))) {
$data = $result;
}
$data = strtr($data, array('\'' => ''', " " => ' ', '>">' => '"', '<"<' => '"', '<lt<' => '<'));
}
// Next, emails...
if (!isset($disabled['email']) && strpos($data, '@') !== false && strpos($data, '[email') === false) {
$data = preg_replace('~(?<=[\\?\\s' . $non_breaking_space . '\\[\\]()*\\\\;>]|^)([\\w\\-\\.]{1,80}@[\\w\\-]+\\.[\\w\\-\\.]+[\\w\\-])(?=[?,\\s' . $non_breaking_space . '\\[\\]()*\\\\]|$|<br />| |>|<|"|'|\\.(?:\\.|;| |\\s|$|<br />))~u', '[email]$1[/email]', $data);
$data = preg_replace('~(?<=<br />)([\\w\\-\\.]{1,80}@[\\w\\-]+\\.[\\w\\-\\.]+[\\w\\-])(?=[?\\.,;\\s' . $non_breaking_space . '\\[\\]()*\\\\]|$|<br />| |>|<|"|')~u', '[email]$1[/email]', $data);
}
}
}
$data = strtr($data, array("\t" => ' '));
// If it wasn't changed, no copying or other boring stuff has to happen!
if ($data != substr($message, $last_pos, $pos - $last_pos)) {
$message = substr($message, 0, $last_pos) . $data . substr($message, $pos);
// Since we changed it, look again in case we added or removed a tag. But we don't want to skip any.
$old_pos = strlen($data) + $last_pos;
$pos = strpos($message, '[', $last_pos);
$pos = $pos === false ? $old_pos : min($pos, $old_pos);
}
}
// Are we there yet? Are we there yet?
if ($pos >= strlen($message) - 1) {
break;
}
$tags = strtolower($message[$pos + 1]);
if ($tags == '/' && !empty($open_tags)) {
$pos2 = strpos($message, ']', $pos + 1);
if ($pos2 == $pos + 2) {
continue;
}
$look_for = strtolower(substr($message, $pos + 2, $pos2 - $pos - 2));
$to_close = array();
$block_level = null;
do {
$tag = array_pop($open_tags);
if (!$tag) {
break;
}
if (!empty($tag['block_level'])) {
// Only find out if we need to.
if ($block_level === false) {
array_push($open_tags, $tag);
break;
}
// The idea is, if we are LOOKING for a block level tag, we can close them on the way.
if (strlen($look_for) > 0 && isset($bbc_codes[$look_for[0]])) {
foreach ($bbc_codes[$look_for[0]] as $temp) {
if ($temp['tag'] == $look_for) {
$block_level = !empty($temp['block_level']);
break;
}
}
}
if ($block_level !== true) {
$block_level = false;
array_push($open_tags, $tag);
break;
}
}
$to_close[] = $tag;
} while ($tag['tag'] != $look_for);
// Did we just eat through everything and not find it?
if (empty($open_tags) && (empty($tag) || $tag['tag'] != $look_for)) {
$open_tags = $to_close;
continue;
} elseif (!empty($to_close) && $tag['tag'] != $look_for) {
if ($block_level === null && isset($look_for[0], $bbc_codes[$look_for[0]])) {
foreach ($bbc_codes[$look_for[0]] as $temp) {
if ($temp['tag'] == $look_for) {
$block_level = !empty($temp['block_level']);
break;
}
}
}
// We're not looking for a block level tag (or maybe even a tag that exists...)
if (!$block_level) {
foreach ($to_close as $tag) {
array_push($open_tags, $tag);
}
continue;
}
}
foreach ($to_close as $tag) {
$message = substr($message, 0, $pos) . "\n" . $tag['after'] . "\n" . substr($message, $pos2 + 1);
$pos += strlen($tag['after']) + 2;
$pos2 = $pos - 1;
// See the comment at the end of the big loop - just eating whitespace ;).
if (!empty($tag['block_level']) && substr($message, $pos, 6) == '<br />') {
$message = substr($message, 0, $pos) . substr($message, $pos + 6);
}
if (!empty($tag['trim']) && $tag['trim'] != 'inside' && preg_match('~(<br />| |\\s)*~', substr($message, $pos), $matches) != 0) {
$message = substr($message, 0, $pos) . substr($message, $pos + strlen($matches[0]));
}
}
if (!empty($to_close)) {
$to_close = array();
$pos--;
}
continue;
}
// No tags for this character, so just keep going (fastest possible course.)
if (!isset($bbc_codes[$tags])) {
continue;
}
$inside = empty($open_tags) ? null : $open_tags[count($open_tags) - 1];
$tag = null;
foreach ($bbc_codes[$tags] as $possible) {
$pt_strlen = strlen($possible['tag']);
// Not a match?
if (strtolower(substr($message, $pos + 1, $pt_strlen)) != $possible['tag']) {
continue;
}
$next_c = isset($message[$pos + 1 + $pt_strlen]) ? $message[$pos + 1 + $pt_strlen] : '';
// A test validation?
if (isset($possible['test']) && preg_match('~^' . $possible['test'] . '~', substr($message, $pos + 1 + $pt_strlen + 1)) === 0) {
continue;
} elseif (!empty($possible['parameters'])) {
if ($next_c != ' ') {
continue;
}
} elseif (isset($possible['type'])) {
// Do we need an equal sign?
if (in_array($possible['type'], array('unparsed_equals', 'unparsed_commas', 'unparsed_commas_content', 'unparsed_equals_content', 'parsed_equals')) && $next_c != '=') {
continue;
}
// Maybe we just want a /...
if ($possible['type'] == 'closed' && $next_c != ']' && substr($message, $pos + 1 + $pt_strlen, 2) != '/]' && substr($message, $pos + 1 + $pt_strlen, 3) != ' /]') {
continue;
}
// An immediate ]?
if ($possible['type'] == 'unparsed_content' && $next_c != ']') {
continue;
}
} elseif ($next_c != ']') {
continue;
}
// Check allowed tree?
if (isset($possible['require_parents']) && ($inside === null || !in_array($inside['tag'], $possible['require_parents']))) {
continue;
} elseif (isset($inside['require_children']) && !in_array($possible['tag'], $inside['require_children'])) {
continue;
} elseif (isset($inside['disallow_children']) && in_array($possible['tag'], $inside['disallow_children'])) {
continue;
} elseif (isset($possible['disallow_parents']) && ($inside !== null && in_array($inside['tag'], $possible['disallow_parents']))) {
if (!isset($possible['disallow_before'], $possible['disallow_after'])) {
continue;
}
$possible['before'] = isset($possible['disallow_before']) ? $possible['disallow_before'] : $possible['before'];
$possible['after'] = isset($possible['disallow_after']) ? $possible['disallow_after'] : $possible['after'];
}
$pos1 = $pos + 1 + $pt_strlen + 1;
// Quotes can have alternate styling, we do this php-side due to all the permutations of quotes.
if ($possible['tag'] == 'quote') {
// Start with standard
$quote_alt = false;
foreach ($open_tags as $open_quote) {
// Every parent quote this quote has flips the styling
if ($open_quote['tag'] == 'quote') {
$quote_alt = !$quote_alt;
}
}
// Add a class to the quote to style alternating blockquotes
// @todo - Frankly it makes little sense to allow alternate blockquote
// styling without also catering for alternate quoteheader styling.
// I do remember coding that some time back, but it seems to have gotten
// lost somewhere in the Elk processes.
// Come to think of it, it may be better to append a second class rather
// than alter the standard one.
// - Example: class="bbc_quote" and class="bbc_quote alt_quote".
// This would mean simpler CSS for themes (like default) which do not use the alternate styling,
// but would still allow it for themes that want it.
$possible['before'] = strtr($possible['before'], array('<blockquote>' => '<blockquote class="bbc_' . ($quote_alt ? 'alternate' : 'standard') . '_quote">'));
}
// This is long, but it makes things much easier and cleaner.
if (!empty($possible['parameters'])) {
$preg = array();
foreach ($possible['parameters'] as $p => $info) {
$preg[] = '(\\s+' . $p . '=' . (empty($info['quoted']) ? '' : '"') . (isset($info['match']) ? $info['match'] : '(.+?)') . (empty($info['quoted']) ? '' : '"') . ')' . (empty($info['optional']) ? '' : '?');
}
// Okay, this may look ugly and it is, but it's not going to happen much and it is the best way
// of allowing any order of parameters but still parsing them right.
$match = false;
$orders = permute($preg);
foreach ($orders as $p) {
if (preg_match('~^' . implode('', $p) . '\\]~i', substr($message, $pos1 - 1), $matches) != 0) {
$match = true;
break;
}
}
// Didn't match our parameter list, try the next possible.
if (!$match) {
continue;
}
$params = array();
for ($i = 1, $n = count($matches); $i < $n; $i += 2) {
$key = strtok(ltrim($matches[$i]), '=');
if (isset($possible['parameters'][$key]['value'])) {
$params['{' . $key . '}'] = strtr($possible['parameters'][$key]['value'], array('$1' => $matches[$i + 1]));
} elseif (isset($possible['parameters'][$key]['validate'])) {
$params['{' . $key . '}'] = $possible['parameters'][$key]['validate']($matches[$i + 1]);
} else {
$params['{' . $key . '}'] = $matches[$i + 1];
}
// Just to make sure: replace any $ or { so they can't interpolate wrongly.
$params['{' . $key . '}'] = strtr($params['{' . $key . '}'], array('$' => '$', '{' => '{'));
}
foreach ($possible['parameters'] as $p => $info) {
if (!isset($params['{' . $p . '}'])) {
$params['{' . $p . '}'] = '';
}
}
$tag = $possible;
// Put the parameters into the string.
if (isset($tag['before'])) {
$tag['before'] = strtr($tag['before'], $params);
}
if (isset($tag['after'])) {
$tag['after'] = strtr($tag['after'], $params);
}
if (isset($tag['content'])) {
$tag['content'] = strtr($tag['content'], $params);
}
$pos1 += strlen($matches[0]) - 1;
} else {
$tag = $possible;
}
break;
}
// Item codes are complicated buggers... they are implicit [li]s and can make [list]s!
if ($smileys !== false && $tag === null && isset($message[$pos + 2]) && isset($itemcodes[$message[$pos + 1]]) && $message[$pos + 2] === ']' && !isset($disabled['list']) && !isset($disabled['li'])) {
if ($message[$pos + 1] == '0' && !in_array($message[$pos - 1], array(';', ' ', "\t", "\n", '>'))) {
continue;
}
$tag = $itemcodes[$message[$pos + 1]];
// First let's set up the tree: it needs to be in a list, or after an li.
if ($inside === null || $inside['tag'] != 'list' && $inside['tag'] != 'li') {
$open_tags[] = array('tag' => 'list', 'after' => '</ul>', 'block_level' => true, 'require_children' => array('li'), 'disallow_children' => isset($inside['disallow_children']) ? $inside['disallow_children'] : null);
$code = '<ul' . ($tag == '' ? '' : ' style="list-style-type: ' . $tag . '"') . ' class="bbc_list">';
} elseif ($inside['tag'] == 'li') {
array_pop($open_tags);
$code = '</li>';
} else {
$code = '';
}
// Now we open a new tag.
$open_tags[] = array('tag' => 'li', 'after' => '</li>', 'trim' => 'outside', 'block_level' => true, 'disallow_children' => isset($inside['disallow_children']) ? $inside['disallow_children'] : null);
// First, open the tag...
$code .= '<li>';
$message = substr($message, 0, $pos) . "\n" . $code . "\n" . substr($message, $pos + 3);
$pos += strlen($code) - 1 + 2;
// Next, find the next break (if any.) If there's more itemcode after it, keep it going - otherwise close!
$pos2 = strpos($message, '<br />', $pos);
$pos3 = strpos($message, '[/', $pos);
if ($pos2 !== false && ($pos2 <= $pos3 || $pos3 === false)) {
preg_match('~^(<br />| |\\s|\\[)+~', substr($message, $pos2 + 6), $matches);
$message = substr($message, 0, $pos2) . (!empty($matches[0]) && substr($matches[0], -1) == '[' ? '[/li]' : '[/li][/list]') . substr($message, $pos2);
$open_tags[count($open_tags) - 2]['after'] = '</ul>';
} else {
// Move the li over, because we're not sure what we'll hit.
$open_tags[count($open_tags) - 1]['after'] = '';
$open_tags[count($open_tags) - 2]['after'] = '</li></ul>';
}
continue;
}
// Implicitly close lists and tables if something other than what's required is in them. This is needed for itemcode.
if ($tag === null && $inside !== null && !empty($inside['require_children'])) {
array_pop($open_tags);
$message = substr($message, 0, $pos) . "\n" . $inside['after'] . "\n" . substr($message, $pos);
$pos += strlen($inside['after']) - 1 + 2;
}
// No tag? Keep looking, then. Silly people using brackets without actual tags.
if ($tag === null) {
continue;
}
// Propagate the list to the child (so wrapping the disallowed tag won't work either.)
if (isset($inside['disallow_children'])) {
$tag['disallow_children'] = isset($tag['disallow_children']) ? array_unique(array_merge($tag['disallow_children'], $inside['disallow_children'])) : $inside['disallow_children'];
}
// Is this tag disabled?
if (isset($disabled[$tag['tag']])) {
if (!isset($tag['disabled_before']) && !isset($tag['disabled_after']) && !isset($tag['disabled_content'])) {
$tag['before'] = !empty($tag['block_level']) ? '<div>' : '';
$tag['after'] = !empty($tag['block_level']) ? '</div>' : '';
$tag['content'] = isset($tag['type']) && $tag['type'] == 'closed' ? '' : (!empty($tag['block_level']) ? '<div>$1</div>' : '$1');
} elseif (isset($tag['disabled_before']) || isset($tag['disabled_after'])) {
$tag['before'] = isset($tag['disabled_before']) ? $tag['disabled_before'] : (!empty($tag['block_level']) ? '<div>' : '');
$tag['after'] = isset($tag['disabled_after']) ? $tag['disabled_after'] : (!empty($tag['block_level']) ? '</div>' : '');
} else {
$tag['content'] = $tag['disabled_content'];
}
}
// We use this alot
$tag_strlen = strlen($tag['tag']);
// The only special case is 'html', which doesn't need to close things.
if (!empty($tag['block_level']) && $tag['tag'] != 'html' && empty($inside['block_level'])) {
$n = count($open_tags) - 1;
while (empty($open_tags[$n]['block_level']) && $n >= 0) {
$n--;
}
// Close all the non block level tags so this tag isn't surrounded by them.
for ($i = count($open_tags) - 1; $i > $n; $i--) {
$message = substr($message, 0, $pos) . "\n" . $open_tags[$i]['after'] . "\n" . substr($message, $pos);
$ot_strlen = strlen($open_tags[$i]['after']);
$pos += $ot_strlen + 2;
$pos1 += $ot_strlen + 2;
// Trim or eat trailing stuff... see comment at the end of the big loop.
if (!empty($open_tags[$i]['block_level']) && substr($message, $pos, 6) == '<br />') {
$message = substr($message, 0, $pos) . substr($message, $pos + 6);
}
if (!empty($open_tags[$i]['trim']) && $tag['trim'] != 'inside' && preg_match('~(<br />| |\\s)*~', substr($message, $pos), $matches) != 0) {
$message = substr($message, 0, $pos) . substr($message, $pos + strlen($matches[0]));
}
array_pop($open_tags);
}
}
// No type means 'parsed_content'.
if (!isset($tag['type'])) {
// @todo Check for end tag first, so people can say "I like that [i] tag"?
$open_tags[] = $tag;
$message = substr($message, 0, $pos) . "\n" . $tag['before'] . "\n" . substr($message, $pos1);
$pos += strlen($tag['before']) - 1 + 2;
} elseif ($tag['type'] === 'unparsed_content') {
$pos2 = stripos($message, '[/' . substr($message, $pos + 1, $tag_strlen) . ']', $pos1);
if ($pos2 === false) {
continue;
}
$data = substr($message, $pos1, $pos2 - $pos1);
if (!empty($tag['block_level']) && substr($data, 0, 6) === '<br />') {
$data = substr($data, 6);
}
if (isset($tag['validate'])) {
$tag['validate']($tag, $data, $disabled);
}
$code = strtr($tag['content'], array('$1' => $data));
$message = substr($message, 0, $pos) . "\n" . $code . "\n" . substr($message, $pos2 + 3 + $tag_strlen);
$pos += strlen($code) - 1 + 2;
$last_pos = $pos + 1;
} elseif ($tag['type'] === 'unparsed_equals_content') {
// The value may be quoted for some tags - check.
if (isset($tag['quoted'])) {
$quoted = substr($message, $pos1, 6) == '"';
if ($tag['quoted'] !== 'optional' && !$quoted) {
continue;
}
if ($quoted) {
$pos1 += 6;
}
} else {
$quoted = false;
}
$pos2 = strpos($message, $quoted == false ? ']' : '"]', $pos1);
if ($pos2 === false) {
continue;
}
$pos3 = stripos($message, '[/' . substr($message, $pos + 1, $tag_strlen) . ']', $pos2);
if ($pos3 === false) {
continue;
}
$data = array(substr($message, $pos2 + ($quoted == false ? 1 : 7), $pos3 - ($pos2 + ($quoted == false ? 1 : 7))), substr($message, $pos1, $pos2 - $pos1));
if (!empty($tag['block_level']) && substr($data[0], 0, 6) === '<br />') {
$data[0] = substr($data[0], 6);
}
// Validation for my parking, please!
if (isset($tag['validate'])) {
$tag['validate']($tag, $data, $disabled);
}
$code = strtr($tag['content'], array('$1' => $data[0], '$2' => $data[1]));
$message = substr($message, 0, $pos) . "\n" . $code . "\n" . substr($message, $pos3 + 3 + $tag_strlen);
$pos += strlen($code) - 1 + 2;
} elseif ($tag['type'] === 'closed') {
$pos2 = strpos($message, ']', $pos);
$message = substr($message, 0, $pos) . "\n" . $tag['content'] . "\n" . substr($message, $pos2 + 1);
$pos += strlen($tag['content']) - 1 + 2;
} elseif ($tag['type'] === 'unparsed_commas_content') {
$pos2 = strpos($message, ']', $pos1);
if ($pos2 === false) {
continue;
}
$pos3 = stripos($message, '[/' . substr($message, $pos + 1, $tag_strlen) . ']', $pos2);
if ($pos3 === false) {
continue;
}
// We want $1 to be the content, and the rest to be csv.
$data = explode(',', ',' . substr($message, $pos1, $pos2 - $pos1));
$data[0] = substr($message, $pos2 + 1, $pos3 - $pos2 - 1);
if (isset($tag['validate'])) {
$tag['validate']($tag, $data, $disabled);
}
$code = $tag['content'];
foreach ($data as $k => $d) {
$code = strtr($code, array('$' . ($k + 1) => trim($d)));
}
$message = substr($message, 0, $pos) . "\n" . $code . "\n" . substr($message, $pos3 + 3 + $tag_strlen);
$pos += strlen($code) - 1 + 2;
} elseif ($tag['type'] === 'unparsed_commas') {
$pos2 = strpos($message, ']', $pos1);
if ($pos2 === false) {
continue;
}
$data = explode(',', substr($message, $pos1, $pos2 - $pos1));
if (isset($tag['validate'])) {
$tag['validate']($tag, $data, $disabled);
}
// Fix after, for disabled code mainly.
foreach ($data as $k => $d) {
$tag['after'] = strtr($tag['after'], array('$' . ($k + 1) => trim($d)));
}
$open_tags[] = $tag;
// Replace them out, $1, $2, $3, $4, etc.
$code = $tag['before'];
foreach ($data as $k => $d) {
$code = strtr($code, array('$' . ($k + 1) => trim($d)));
}
$message = substr($message, 0, $pos) . "\n" . $code . "\n" . substr($message, $pos2 + 1);
$pos += strlen($code) - 1 + 2;
} elseif ($tag['type'] === 'unparsed_equals' || $tag['type'] === 'parsed_equals') {
// The value may be quoted for some tags - check.
if (isset($tag['quoted'])) {
$quoted = substr($message, $pos1, 6) == '"';
if ($tag['quoted'] !== 'optional' && !$quoted) {
continue;
}
if ($quoted) {
$pos1 += 6;
}
} else {
$quoted = false;
}
$pos2 = strpos($message, $quoted == false ? ']' : '"]', $pos1);
if ($pos2 === false) {
continue;
}
$data = substr($message, $pos1, $pos2 - $pos1);
// Validation for my parking, please!
if (isset($tag['validate'])) {
$tag['validate']($tag, $data, $disabled);
}
// For parsed content, we must recurse to avoid security problems.
if ($tag['type'] !== 'unparsed_equals') {
$data = parse_bbc($data, !empty($tag['parsed_tags_allowed']) ? false : true, '', !empty($tag['parsed_tags_allowed']) ? $tag['parsed_tags_allowed'] : array());
// Unfortunately after we recurse, we must manually reset the static disabled tags to what they were
parse_bbc('dummy');
}
$tag['after'] = strtr($tag['after'], array('$1' => $data));
$open_tags[] = $tag;
$code = strtr($tag['before'], array('$1' => $data));
$message = substr($message, 0, $pos) . "\n" . $code . "\n" . substr($message, $pos2 + ($quoted == false ? 1 : 7));
$pos += strlen($code) - 1 + 2;
}
// If this is block level, eat any breaks after it.
if (!empty($tag['block_level']) && substr($message, $pos + 1, 6) === '<br />') {
$message = substr($message, 0, $pos + 1) . substr($message, $pos + 7);
}
// Are we trimming outside this tag?
if (!empty($tag['trim']) && $tag['trim'] !== 'outside' && preg_match('~(<br />| |\\s)*~', substr($message, $pos + 1), $matches) != 0) {
$message = substr($message, 0, $pos + 1) . substr($message, $pos + 1 + strlen($matches[0]));
}
}
// Close any remaining tags.
while ($tag = array_pop($open_tags)) {
$message .= "\n" . $tag['after'] . "\n";
}
// Parse the smileys within the parts where it can be done safely.
if ($smileys === true) {
$message_parts = explode("\n", $message);
for ($i = 0, $n = count($message_parts); $i < $n; $i += 2) {
parsesmileys($message_parts[$i]);
}
$message = implode('', $message_parts);
} else {
$message = strtr($message, array("\n" => ''));
}
if (isset($message[0]) && $message[0] === ' ') {
$message = ' ' . substr($message, 1);
}
// Cleanup whitespace.
$message = strtr($message, array(' ' => ' ', "\r" => '', "\n" => '<br />', '<br /> ' => '<br /> ', ' ' => "\n"));
// Finish footnotes if we have any.
if (strpos($message, '<sup class="bbc_footnotes">') !== false) {
global $fn_num, $fn_content, $fn_count;
static $fn_total;
// @todo temporary until we have nesting
$message = str_replace(array('[footnote]', '[/footnote]'), '', $message);
$fn_num = 0;
$fn_content = array();
$fn_count = isset($fn_total) ? $fn_total : 0;
// Replace our footnote text with a [1] link, save the text for use at the end of the message
$message = preg_replace_callback('~(%fn%(.*?)%fn%)~is', 'footnote_callback', $message);
$fn_total += $fn_num;
// If we have footnotes, add them in at the end of the message
if (!empty($fn_num)) {
$message .= '<div class="bbc_footnotes">' . implode('', $fn_content) . '</div>';
}
}
// Allow addons access to what parse_bbc created
call_integration_hook('integrate_post_parsebbc', array(&$message, &$smileys, &$cache_id, &$parse_tags));
// Cache the output if it took some time...
if (isset($cache_key, $cache_t) && microtime(true) - $cache_t > 0.05) {
cache_put_data($cache_key, $message, 240);
}
// If this was a force parse revert if needed.
if (!empty($parse_tags)) {
if (empty($temp_bbc)) {
$bbc_codes = array();
} else {
$bbc_codes = $temp_bbc;
unset($temp_bbc);
}
}
return $message;
}
