private static function createShortcodeRegexContent(SyntaxInterface $syntax)
{
$open = self::quote($syntax->getOpeningTag());
$slash = self::quote($syntax->getClosingTagMarker());
$close = self::quote($syntax->getClosingTag());
$equals = self::quote($syntax->getParameterValueSeparator());
$string = self::quote($syntax->getParameterValueDelimiter());
$space = '\\s*';
// lookahead test for space, closing tag, self-closing tag or end of string
$empty = '(?=\\s|' . $close . '|' . $slash . $space . $close . '|$)';
// equals sign and alphanumeric value
$simple = $space . $equals . $space . '(?!=(?:\\s*|' . $close . '|' . $slash . $close . '))';
// equals sign and value without unescaped string delimiters enclosed in them
$complex = $space . $equals . $space . $string . '(?:[^' . $string . '\\\\]*(?:\\\\.[^' . $string . '\\\\]*)*)' . $string;
// complete parameters matching regex
$parameters = '((?:\\s*(?:\\w+(?:' . $complex . '|' . $simple . '|' . $empty . ')))*)';
// alphanumeric characters and dash
$name = '([\\w-]+)';
// non-greedy match for any characters
$content = '(.*?)';
// equal beginning for each variant: open tag, name and parameters
$common = $open . $space . $name . $parameters . $space;
// closing tag variants: just closing tag, self closing tag or content
// and closing block with backreference name validation
$justClosed = $close;
$selfClosed = '([' . $slash . '])' . $space . $close;
$withContent = $close . $content . $open . $space . $slash . $space . '(\\2)' . $space . $close;
return '(?:' . $common . '(?:' . $withContent . '|' . $justClosed . '|' . $selfClosed . '))';
}
private static function createShortcodeRegexContent(SyntaxInterface $syntax)
{
$open = self::quote($syntax->getOpeningTag());
$slash = self::quote($syntax->getClosingTagMarker());
$close = self::quote($syntax->getClosingTag());
$equals = self::quote($syntax->getParameterValueSeparator());
$string = self::quote($syntax->getParameterValueDelimiter());
$space = '\\s*';
// parameter and value separator can have any number of spaces around itself
$equalsSpaced = $space . $equals . $space;
// lookahead test for space, closing tag, self-closing tag or end of string
$empty = '(?=\\s|' . $close . '|' . $slash . $space . $close . '|$)';
// equals sign and alphanumeric value
$simple = '(?!=(?:\\s*|' . $close . '|' . $slash . $close . '))';
// equals sign and value without unescaped string delimiters enclosed in them
$complex = $string . '(?:[^' . $string . '\\\\]*(?:\\\\.[^' . $string . '\\\\]*)*)' . $string;
// complete parameters matching regex
$parameters = '(?<parameters>(?:\\s*(?:\\w+(?:' . $equalsSpaced . $complex . '|' . $equalsSpaced . $simple . '|' . $empty . ')))*)';
// BBCode is the part after name that makes it behave like a non-empty parameter value
$bbCode = '(?:' . $equals . $space . '(?<bbCode>' . $complex . '|' . $simple . '))?';
// alphanumeric characters and dash
$name = '(?<name>' . static::buildNameRegex() . ')';
// non-greedy match for any characters
$content = '(?<content>.*?)';
// equal beginning for each variant: open tag, name and parameters
$common = $open . $space . $name . $space . $bbCode . $space . $parameters . $space;
// closing tag variants: just closing tag, self closing tag or content
// and closing block with backreference name validation
$justClosed = $close;
$selfClosed = '(?<marker>' . $slash . ')' . $space . $close;
$withContent = $close . $content . $open . $space . '(?<markerContent>' . $slash . ')' . $space . '(\\k<name>)' . $space . $close;
return '(?:' . $common . '(?:' . $withContent . '|' . $justClosed . '|' . $selfClosed . '))';
}
/**
* @dataProvider provideSyntaxes
*/
public function testSyntax(SyntaxInterface $syntax, $open, $close, $slash, $parameter, $value)
{
$this->assertSame($open, $syntax->getOpeningTag());
$this->assertSame($close, $syntax->getClosingTag());
$this->assertSame($slash, $syntax->getClosingTagMarker());
$this->assertSame($parameter, $syntax->getParameterValueSeparator());
$this->assertSame($value, $syntax->getParameterValueDelimiter());
}
private function getTokenizerRegex(SyntaxInterface $syntax)
{
$quote = function ($text, $group) {
return '(?<' . $group . '>' . preg_replace('/(.)/us', '\\\\$0', $text) . ')';
};
$rules = array($quote($syntax->getOpeningTag(), 'open'), $quote($syntax->getClosingTag(), 'close'), $quote($syntax->getClosingTagMarker(), 'marker'), $quote($syntax->getParameterValueSeparator(), 'separator'), $quote($syntax->getParameterValueDelimiter(), 'delimiter'), '(?<ws>\\s+)', '(?<string>[\\w-]+|\\\\.|.)');
return '~(' . implode('|', $rules) . ')~us';
}
private function isDelimitedValue($value)
{
return preg_match('/^' . $this->syntax->getParameterValueDelimiter() . '/us', $value) && preg_match('/' . $this->syntax->getParameterValueDelimiter() . '$/us', $value);
}