// Switch to Mata interpreter/compiler
mata:

// Drops class object if it already exists
// mata drop source()

// Definition of HTML Tag source Mata Class
// Defines multiple media resources for media elements (<video> and <audio>)// Information retrieved from http://www.w3schools.com/tags/tag_source.asp
class source extends htmlglobal {

    // Define private member variables
    private:

    // Static/final variables
    static       string  scalar  opens, opene, close

    // String scalar attributes
    string               scalar          htmlmedia, htmlsrc, htmltype

    // Make class args non-static to prevent assignment of class args to all instances of class
    string               scalar          classargs

    // Define public members/methods
    public:

    // Class constructor method
    void         new()

    // Setter methods
    class        source     scalar  setClassArgs(), setMedia(), setSrc(), setType()

    // Getter methods
    string               scalar          getOpens(), getOpene(), getClose(), print(), getClassArgs(), getMedia(), getSrc(), getType()

} // End of class declaration

// Class constructor method declaration
void source::new() {

    // Defines the start of the opening tag for the class
    this.opens = "<source"

    // Defines the end of the opening tag for the class
    this.opene = ">"

    // Defines the closing tag for the class
    this.close = "</source>"

} // End of class constructor method definition

// Setter method for class arguments (appear between HTML tags)
class source scalar source::setClassArgs(| string scalar classarguments) {

    // Defines arguments that appear between HTML tags
    this.classargs = classarguments

    // Return a copy of the object
    return(this)

} // End of setter method for class arguments

// Specifies the type of media resource
class source scalar source::setMedia(| string scalar methodarg) {

    // Set the attribute media for this class
    this.htmlmedia = `" media=""' + methodarg + `"""'

    // Return a copy of the object
    return(this)

} // End of Method media declaration for class source

// Specifies the URL of the media file
class source scalar source::setSrc(| string scalar methodarg) {

    // Set the attribute src for this class
    this.htmlsrc = `" src=""' + methodarg + `"""'

    // Return a copy of the object
    return(this)

} // End of Method src declaration for class source

// Specifies the media type of the media resource
class source scalar source::setType(| string scalar methodarg) {

    // Set the attribute type for this class
    this.htmltype = `" type=""' + methodarg + `"""'

    // Return a copy of the object
    return(this)

} // End of Method type declaration for class source

// Getter method for opening bracket
string scalar source::getOpens() {

    // Returns the opening bracket/tag w/o > character to allow attributes
    return(this.opens)

} // End of getter method for opens member of class source

// Getter method for opening bracket closing character
string scalar source::getOpene() {

    // Returns the closing character for the opening bracket
    return(this.opene)

} // End of getter method for opene member of class source

// Getter method for closing bracket
string scalar source::getClose() {

    // Returns the closing bracket/tag
    return(this.close)

} // End of getter method for close member of class source

// Getter method for class arguments
string scalar source::getClassArgs() {

    // Returns the class arguments that appear between the HTML tags
    return(this.classargs)

} // End of getter method for class arguments member of class source

// Getter method for media member variable
string scalar source::getMedia() {

    // Returns the media variable
    return(this.htmlmedia)

} // End of getter method for media member of class source

// Getter method for src member variable
string scalar source::getSrc() {

    // Returns the src variable
    return(this.htmlsrc)

} // End of getter method for src member of class source

// Getter method for type member variable
string scalar source::getType() {

    // Returns the type variable
    return(this.htmltype)

} // End of getter method for type member of class source

// Get the HTML tag w/attributes and arguments
string scalar source::print() {

    // Create local variables to piece together return string
    string scalar open, args, close

    // Create opening string
    open = getOpens() + getMedia() + getSrc() + getType() + globalAttrs() + getOpene()

    // Get class arguments
    args = getClassArgs()

    // Get closing tag
    close = getClose()

    // Return the complete HTML string
    return(char((10)) + subinstr(open, " >", ">") + args + close + char((10)))

} // End of print method for class source

// End of Mata session
end