// Switch to Mata interpreter/compiler
mata:

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

// Definition of HTML Tag th Mata Class
// Defines a header cell in a table// Information retrieved from http://www.w3schools.com/tags/tag_th.asp
class th extends htmlglobal {

    // Define private member variables
    private:

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

    // String scalar attributes
    string               scalar          htmlabbr, htmlalign, htmlaxis, htmlbgcolor, htmlchar, htmlcharoff, htmlcolspan, htmlheaders, htmlheight, htmlnowrap, htmlrowspan, htmlscope, htmlsorted, htmlvalign, htmlwidth

    // 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        th     scalar  setClassArgs(), setAbbr(), setAlign(), setAxis(), setBgcolor(), setChar(), setCharoff(), setColspan(), setHeaders(), setHeight(), setNowrap(), setRowspan(), setScope(), setSorted(), setValign(), setWidth()

    // Getter methods
    string               scalar          getOpens(), getOpene(), getClose(), print(), getClassArgs(), getAbbr(), getAlign(), getAxis(), getBgcolor(), getChar(), getCharoff(), getColspan(), getHeaders(), getHeight(), getNowrap(), getRowspan(), getScope(), getSorted(), getValign(), getWidth()

} // End of class declaration

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

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

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

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

} // End of class constructor method definition

// Setter method for class arguments (appear between HTML tags)
class th scalar th::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 an abbreviated version of the content in a header cell
class th scalar th::setAbbr(| string scalar methodarg) {

    // Set the attribute abbr for this class
    this.htmlabbr = `" abbr=""' + methodarg + `"""'

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

} // End of Method abbr declaration for class th

// Not supported in HTML5. Aligns the content in a header cell
class th scalar th::setAlign(| string scalar methodarg) {

    // Validate argument
    if (methodarg == "left" | methodarg == "right" | methodarg == "center" | methodarg == "justify" | methodarg == "char") {

        // Set the attribute value
        this.htmlalign = `" align=""' + methodarg + `"""'

    } // End IF Block for validated argument value

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

} // End of Method align declaration for class th

// Not supported in HTML5. Categorizes header cells
class th scalar th::setAxis(| string scalar methodarg) {

    // Set the attribute axis for this class
    this.htmlaxis = `" axis=""' + methodarg + `"""'

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

} // End of Method axis declaration for class th

// Not supported in HTML5. Specifies the background color of a header cell
class th scalar th::setBgcolor(| string scalar methodarg) {

    // Validate argument
    if (methodarg == "rgb(x,x,x)" | methodarg == "#xxxxxx" | methodarg == "colorname") {

        // Set the attribute value
        this.htmlbgcolor = `" bgcolor=""' + methodarg + `"""'

    } // End IF Block for validated argument value

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

} // End of Method bgcolor declaration for class th

// Not supported in HTML5. Aligns the content in a header cell to a character
class th scalar th::setChar(| string scalar methodarg) {

    // Set the attribute char for this class
    this.htmlchar = `" char=""' + methodarg + `"""'

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

} // End of Method char declaration for class th

// Not supported in HTML5. Sets the number of characters the content will be aligned from the character specified by the char attribute
class th scalar th::setCharoff(| string scalar methodarg) {

    // Set the attribute charoff for this class
    this.htmlcharoff = `" charoff=""' + methodarg + `"""'

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

} // End of Method charoff declaration for class th

// Specifies the number of columns a header cell should span
class th scalar th::setColspan(| string scalar methodarg) {

    // Set the attribute colspan for this class
    this.htmlcolspan = `" colspan=""' + methodarg + `"""'

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

} // End of Method colspan declaration for class th

// Specifies one or more header cells a cell is related to
class th scalar th::setHeaders(| string scalar methodarg) {

    // Set the attribute headers for this class
    this.htmlheaders = `" headers=""' + methodarg + `"""'

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

} // End of Method headers declaration for class th

// Not supported in HTML5. Sets the height of a header cell
class th scalar th::setHeight(| string scalar methodarg) {

    // Validate argument
    if (methodarg == "pixels" | methodarg == "%") {

        // Set the attribute value
        this.htmlheight = `" height=""' + methodarg + `"""'

    } // End IF Block for validated argument value

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

} // End of Method height declaration for class th

// Not supported in HTML5. Specifies that the content inside a header cell should not wrap
class th scalar th::setNowrap(| string scalar methodarg) {

    // Set the attribute nowrap for this class
    this.htmlnowrap = `" nowrap=""' + methodarg + `"""'

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

} // End of Method nowrap declaration for class th

// Specifies the number of rows a header cell should span
class th scalar th::setRowspan(| string scalar methodarg) {

    // Set the attribute rowspan for this class
    this.htmlrowspan = `" rowspan=""' + methodarg + `"""'

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

} // End of Method rowspan declaration for class th

// Specifies whether a header cell is a header for a column, row, or group of columns or rows
class th scalar th::setScope(| string scalar methodarg) {

    // Validate argument
    if (methodarg == "col" | methodarg == "colgroup" | methodarg == "row" | methodarg == "rowgroup") {

        // Set the attribute value
        this.htmlscope = `" scope=""' + methodarg + `"""'

    } // End IF Block for validated argument value

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

} // End of Method scope declaration for class th

// Defines the sort direction of a column
class th scalar th::setSorted(| string scalar methodarg) {

    // Validate argument
    if (methodarg == "reversednumberreversed" | methodarg == "numbernumber" | methodarg == "reversed") {

        // Set the attribute value
        this.htmlsorted = `" sorted=""' + methodarg + `"""'

    } // End IF Block for validated argument value

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

} // End of Method sorted declaration for class th

// Not supported in HTML5. Vertical aligns the content in a header cell
class th scalar th::setValign(| string scalar methodarg) {

    // Validate argument
    if (methodarg == "top" | methodarg == "middle" | methodarg == "bottom" | methodarg == "baseline") {

        // Set the attribute value
        this.htmlvalign = `" valign=""' + methodarg + `"""'

    } // End IF Block for validated argument value

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

} // End of Method valign declaration for class th

// Not supported in HTML5. Specifies the width of a header cell
class th scalar th::setWidth(| string scalar methodarg) {

    // Validate argument
    if (methodarg == "pixels" | methodarg == "%") {

        // Set the attribute value
        this.htmlwidth = `" width=""' + methodarg + `"""'

    } // End IF Block for validated argument value

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

} // End of Method width declaration for class th

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

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

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

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

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

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

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

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

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

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

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

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

// Getter method for abbr member variable
string scalar th::getAbbr() {

    // Returns the abbr variable
    return(this.htmlabbr)

} // End of getter method for abbr member of class th

// Getter method for align member variable
string scalar th::getAlign() {

    // Returns the align variable
    return(this.htmlalign)

} // End of getter method for align member of class th

// Getter method for axis member variable
string scalar th::getAxis() {

    // Returns the axis variable
    return(this.htmlaxis)

} // End of getter method for axis member of class th

// Getter method for bgcolor member variable
string scalar th::getBgcolor() {

    // Returns the bgcolor variable
    return(this.htmlbgcolor)

} // End of getter method for bgcolor member of class th

// Getter method for char member variable
string scalar th::getChar() {

    // Returns the char variable
    return(this.htmlchar)

} // End of getter method for char member of class th

// Getter method for charoff member variable
string scalar th::getCharoff() {

    // Returns the charoff variable
    return(this.htmlcharoff)

} // End of getter method for charoff member of class th

// Getter method for colspan member variable
string scalar th::getColspan() {

    // Returns the colspan variable
    return(this.htmlcolspan)

} // End of getter method for colspan member of class th

// Getter method for headers member variable
string scalar th::getHeaders() {

    // Returns the headers variable
    return(this.htmlheaders)

} // End of getter method for headers member of class th

// Getter method for height member variable
string scalar th::getHeight() {

    // Returns the height variable
    return(this.htmlheight)

} // End of getter method for height member of class th

// Getter method for nowrap member variable
string scalar th::getNowrap() {

    // Returns the nowrap variable
    return(this.htmlnowrap)

} // End of getter method for nowrap member of class th

// Getter method for rowspan member variable
string scalar th::getRowspan() {

    // Returns the rowspan variable
    return(this.htmlrowspan)

} // End of getter method for rowspan member of class th

// Getter method for scope member variable
string scalar th::getScope() {

    // Returns the scope variable
    return(this.htmlscope)

} // End of getter method for scope member of class th

// Getter method for sorted member variable
string scalar th::getSorted() {

    // Returns the sorted variable
    return(this.htmlsorted)

} // End of getter method for sorted member of class th

// Getter method for valign member variable
string scalar th::getValign() {

    // Returns the valign variable
    return(this.htmlvalign)

} // End of getter method for valign member of class th

// Getter method for width member variable
string scalar th::getWidth() {

    // Returns the width variable
    return(this.htmlwidth)

} // End of getter method for width member of class th

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

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

    // Create opening string
    open = getOpens() + getAbbr() + getAlign() + getAxis() + getBgcolor() + getChar() + getCharoff() + getColspan() + getHeaders() + getHeight() + getNowrap() + getRowspan() + getScope() + getSorted() + getValign() + getWidth() + 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 th

// End of Mata session
end