and
, and the
* visual editor stores < and & as entities. This undoes both.
*
* @param string $content The text between [onlinecompiler] and [/onlinecompiler].
* @return string
*/
function onlinecompiler_shortcode_code( $content ) {
$code = (string) $content;
// Only the line break goes: the next line's indentation is part of the code.
$code = preg_replace( '#\r?\n?#i', "\n", $code );
$code = preg_replace( '#\s*]*>#i', "\n\n", $code );
$code = preg_replace( '#]*>#i', '', $code );
$code = html_entity_decode( $code, ENT_QUOTES | ENT_HTML5, 'UTF-8' );
// Drop the line break after [onlinecompiler] and before [/onlinecompiler], keep the rest.
$code = preg_replace( '/^[ \t]*\r?\n|\r?\n[ \t]*$/', '', $code );
return str_replace( "\r\n", "\n", $code );
}
/**
* Renders [onlinecompiler]...[/onlinecompiler].
*
* @param array|string $atts The shortcode's attributes.
* @param string|null $content The code.
* @return string
*/
function onlinecompiler_shortcode( $atts, $content = null ) {
$atts = shortcode_atts(
array(
'lang' => '',
'stdin' => '',
'theme' => '',
'height' => '',
'readonly' => '',
'lang_select' => '',
'problem' => '',
'locale' => null,
),
$atts,
'onlinecompiler'
);
$yes = array( '1', 'true', 'yes' );
$lang_select = strtolower( (string) $atts['lang_select'] );
if ( in_array( $lang_select, $yes, true ) ) {
$lang_select = 'true';
} elseif ( in_array( $lang_select, array( '0', 'false', 'no' ), true ) ) {
$lang_select = 'false';
} else {
$lang_select = '';
}
return onlinecompiler_render(
array(
'code' => onlinecompiler_shortcode_code( null === $content ? '' : $content ),
'stdin' => str_replace( '\n', "\n", html_entity_decode( (string) $atts['stdin'], ENT_QUOTES | ENT_HTML5, 'UTF-8' ) ),
'lang' => $atts['lang'],
'theme' => strtolower( (string) $atts['theme'] ),
'height' => $atts['height'],
'readonly' => in_array( strtolower( (string) $atts['readonly'] ), $yes, true ),
'langSelect' => $lang_select,
'problem' => $atts['problem'],
'locale' => null === $atts['locale'] ? null : strtolower( (string) $atts['locale'] ),
)
);
}
add_shortcode( 'onlinecompiler', 'onlinecompiler_shortcode' );
/**
* Keeps WordPress from curling the quotes in the code ("" to “”), which would break it.
*
* @param string[] $shortcodes Shortcodes whose content is left as typed.
* @return string[]
*/
function onlinecompiler_no_texturize( $shortcodes ) {
$shortcodes[] = 'onlinecompiler';
return $shortcodes;
}
add_filter( 'no_texturize_shortcodes', 'onlinecompiler_no_texturize' );