RainLab\Pages\Classes\Snippet::extractSnippetsFromMarkup PHP Method

    protected static function extractSnippetsFromMarkup($markup, $theme)
    {
        $map = [];
        $matches = [];
        if (preg_match_all('/\\<figure\\s+[^\\>]+\\>[^\\<]*\\<\\/figure\\>/i', $markup, $matches)) {
            foreach ($matches[0] as $snippetDeclaration) {
                $nameMatch = [];
                if (!preg_match('/data\\-snippet\\s*=\\s*"([^"]+)"/', $snippetDeclaration, $nameMatch)) {
                    continue;
                }
                $snippetCode = $nameMatch[1];
                $properties = [];
                $propertyMatches = [];
                if (preg_match_all('/data\\-property-(?<property>[^=]+)\\s*=\\s*\\"(?<value>[^\\"]+)\\"/i', $snippetDeclaration, $propertyMatches)) {
                    foreach ($propertyMatches['property'] as $index => $propertyName) {
                        $properties[$propertyName] = $propertyMatches['value'][$index];
                    }
                }
                $componentMatch = [];
                $componentClass = null;
                if (preg_match('/data\\-component\\s*=\\s*"([^"]+)"/', $snippetDeclaration, $componentMatch)) {
                    $componentClass = $componentMatch[1];
                }
                // Apply default values for properties not defined in the markup
                // and normalize property code names.
                $properties = self::preprocessPropertyValues($theme, $snippetCode, $componentClass, $properties);
                $map[$snippetDeclaration] = ['code' => $snippetCode, 'component' => $componentClass, 'properties' => $properties];
            }
        }
        return $map;
    }