/**
* Provide NULL and legacy file.php uses decoding
*/
public function process_cdata($cdata)
{
global $CFG;
if ($cdata === '$@NULL@$') {
// Some cases we know we can skip complete processing
return null;
} else {
if ($cdata === '') {
return '';
} else {
if (is_numeric($cdata)) {
return $cdata;
} else {
if (strlen($cdata) < 32) {
// Impossible to have one link in 32cc
return $cdata;
// (http://10.0.0.1/file.php/1/1.jpg, http://10.0.0.1/mod/url/view.php?id=)
} else {
if (strpos($cdata, '$@FILEPHP@$') === false) {
// No $@FILEPHP@$, nothing to convert
return $cdata;
}
}
}
}
}
// Decode file.php calls
$search = array("\$@FILEPHP@\$");
$replace = array(moodle_url::make_legacyfile_url($this->courseid, null));
$result = str_replace($search, $replace, $cdata);
// Now $@SLASH@$ and $@FORCEDOWNLOAD@$ MDL-18799
$search = array('$@SLASH@$', '$@FORCEDOWNLOAD@$');
if ($CFG->slasharguments) {
$replace = array('/', '?forcedownload=1');
} else {
$replace = array('%2F', '&forcedownload=1');
}
return str_replace($search, $replace, $result);
}
function line_replace($line)
{
// return line after various formatting replacements
// have been made - order is vital to stop them interfering with each other
global $CFG;
// ---- (at least) means a <hr />
// MARKDOWN: no change so leave
// is this a list line (starts with * # ; :)
if (preg_match("/^([*]+|[#]+|[;]+|[:]+) /i", $line)) {
$line = $this->do_list($line);
}
// typographic conventions
// MARKDOWN: no equiv. so convert to entity as before
// $line = str_replace( "--", "—", $line );
// $line = str_replace( " - ", " – ", $line );
$line = str_replace("...", " … ", $line);
$line = str_replace("(R)", "®", $line);
$line = str_replace("(r)", "®", $line);
$line = str_replace("(TM)", "™", $line);
$line = str_replace("(tm)", "™", $line);
$line = str_replace("(C)", "©", $line);
$line = str_replace("1/4", "¼", $line);
$line = str_replace("1/2", "½", $line);
$line = str_replace("3/4", "¾", $line);
$line = preg_replace("/([[:digit:]]+[[:space:]]*)x([[:space:]]*[[:digit:]]+)/i", "\\1×\\2", $line);
// (digits) x (digits) - multiply
// do formatting tags
// NOTE: The / replacement *has* to be first, or it will screw the
// HTML tags that are added by the other ones
// MARKDOWN: only bold and italic change, rest are just HTML
$line = $this->do_replace_markdown($line, "\\*", "**");
$line = $this->do_replace_markdown($line, "/", "*");
$line = $this->do_replace($line, "\\+", "ins");
// $line = $this->do_replace( $line, "-", "del" );
$line = $this->do_replace_sub($line, "~", "sub");
$line = $this->do_replace_sub($line, "\\^", "sup");
$line = $this->do_replace($line, "%", "code");
$line = $this->do_replace($line, "@", "cite");
// convert urls into proper link with optional link text URL(text)
// MARDOWN: HTML conversion should work fine
$line = preg_replace("/([[:space:]]|^)([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])\\(([^)]+)\\)/i", "\\1[\\5](\\2://\\3\\4)", $line);
$line = preg_replace("/([[:space:]])www\\.([^[:space:]]*)([[:alnum:]#?/&=])\\(([^)]+)\\)/i", "\\1[\\5](http://www.\\2\\3)", $line);
// make urls (with and without httpd) into proper links
$line = preg_replace("/([[:space:]]|^)([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])/i", "\\1<\\2://\\3\\4>", $line);
$line = preg_replace("/([[:space:]])www\\.([^[:space:]]*)([[:alnum:]#?/&=])/i", "\\1<http://www.\\2\\3\\>", $line);
// make email addresses into mailtos....
// MARKDOWN doesn't quite support this, so do as html
$line = preg_replace("/([[:space:]]|^)([[:alnum:]._-]+@[[:alnum:]._-]+)\\(([^)]+)\\)/i", "\\1<a href=\"mailto:\\2\">\\3</a>", $line);
// !# at the beginning of any lines means a heading
// MARKDOWN: value (1-6) becomes number of hashes
if (preg_match("/^!([1-6]) (.*)\$/i", $line, $regs)) {
$depth = substr($line, 1, 1);
$out = substr('##########', 0, $depth);
$line = preg_replace("/^!([1-6]) (.*)\$/i", "{$out} \\2", $line);
}
// acronym handing, example HTML(Hypertext Markyp Language)
// MARKDOWN: no equiv. so just leave as HTML
$line = preg_replace("/([A-Z]+)\\(([^)]+)\\)/", "<acronym title=\"\\2\">\\1</acronym>", $line);
// Replace resource link >>##(Description Text)
// MARKDOWN: change to MD web link style
$line = preg_replace("/ ([a-zA-Z]+):([0-9]+)\\(([^)]+)\\)/i", " [\\3](" . $CFG->wwwroot . "/mod/\\1/view.php?id=\\2) ", $line);
$coursefileurl = array(moodle_url::make_legacyfile_url($this->courseid, null));
// Replace picture resource link
$line = preg_replace("#/([a-zA-Z0-9./_-]+)(png|gif|jpg)\\(([^)]+)\\)#i", "![\\3](" . $coursefileurl . "/\\1\\2)", $line);
// Replace file resource link
$line = preg_replace("#file:/([[:alnum:]/._-]+)\\(([^)]+)\\)#i", "[\\2](" . $coursefileurl . "/\\1)", $line);
return $line;
}
