/**
* Do the necessary processing on content that came from the user, for example
* the question text or general feedback. The result of calling this method is
* then passed to Moodle's {@link format_text()} function.
* @param string $text the content to process.
* @param qtype_stack_renderer $renderer (options) the STACK renderer, if you have one.
* @return string the content ready to pass to format_text.
*/
public function process_display_castext($text, $replacedollars, qtype_stack_renderer $renderer = null)
{
if ($replacedollars) {
$text = $this->replace_dollars($text);
}
$text = str_replace('!ploturl!', moodle_url::make_file_url('/question/type/stack/plot.php', '/'), $text);
$text = stack_fact_sheets::display($text, $renderer);
return $text;
}
/**
* Validate a CAS text field.
* @param array $errors the errors array that validation is assembling.
* @param string $value the submitted value validate.
* @param string $fieldname the name of the field add any errors to.
* @param string $savesession the array key to save the session to in $this->validationcasstrings.
* @return array updated $errors array.
*/
protected function validate_cas_text($errors, $value, $fieldname, $fixingdollars, $session = null)
{
if (!$fixingdollars && strpos($value, '$$') !== false) {
$errors[$fieldname][] = stack_string('forbiddendoubledollars');
}
$castext = new stack_cas_text($value, $session, $this->seed, 't');
if (!$castext->get_valid()) {
$errors[$fieldname][] = $castext->get_errors();
return $errors;
}
// Validate any [[facts:...]] tags.
$unrecognisedtags = stack_fact_sheets::get_unrecognised_tags($value);
if ($unrecognisedtags) {
$errors[$fieldname][] = stack_string('unrecognisedfactstags', array('tags' => implode(', ', $unrecognisedtags)));
return $errors;
}
if ($session) {
$display = $castext->get_display_castext();
if ($castext->get_errors()) {
$errors[$fieldname][] = $castext->get_errors();
return $errors;
}
}
return $errors;
}
/**
* Replace STACK 2 tags in the question text with new ones.
* @param string incoming question text
* @param array input names
* @return string converted raw keyvals.
*/
public function convert_questiontext($questiontext, $inputnames)
{
foreach ($inputnames as $name) {
$questiontext = str_replace('#' . $name . '#', "[[input:{$name}]]", $questiontext);
$questiontext = str_replace('<IEfeedback>' . $name . '</IEfeedback>', "[[validation:{$name}]]", $questiontext);
}
$questiontext = stack_fact_sheets::convert_legacy_tags($questiontext);
return $this->fix_maths_delimiters($questiontext);
}
/**
* @param string $page countent in Markdown format.
* @param string $docscontent base URL for linking to images etc.
* @return string HTML content.
*/
function stack_docs_render_markdown($page, $docscontent)
{
// Put in links to images etc.
$page = preg_replace('~(?<!\\\\)%CONTENT~', $docscontent, $page);
$page = str_replace('\\%CONTENT', '%CONTENT', $page);
$page = stack_maths::pre_process_docs_page($page);
if (strpos($page, '[[ALL_FACTS]]') > 0) {
$page = str_replace('[[ALL_FACTS]]', stack_fact_sheets::generate_docs(), $page);
}
$page = format_text($page, $format = FORMAT_MARKDOWN);
$page = stack_maths::post_process_docs_page($page);
return $page;
}
public function test_legacy_convert()
{
$this->assertEquals("An [[facts:old_hint]] and [[facts:older_hint]].", stack_fact_sheets::convert_legacy_tags("An <hint>old_hint</hint> and <hint>older_hint</hint>."));
}
