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htmla.mata
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htmla.mata
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// Switch to Mata interpreter/compiler
mata:
// Drops class object if it already exists
// mata drop a()
// Definition of HTML Tag a Mata Class
// Defines a hyperlink// Information retrieved from http://www.w3schools.com/tags/tag_a.asp
class a extends htmlglobal {
// Define private member variables
private:
// Static/final variables
static string scalar opens, opene, close
// String scalar attributes
string scalar htmlcharset, htmlcoords, htmldownload, htmlhref, htmlhreflang, htmlmedia, htmlname, htmlrel, htmlrev, htmlshape, htmltarget, 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 a scalar setClassArgs(), setCharset(), setCoords(), setDownload(), setHref(), setHreflang(), setMedia(), setName(), setRel(), setRev(), setShape(), setTarget(), setType()
// Getter methods
string scalar getOpens(), getOpene(), getClose(), print(), getClassArgs(), getCharset(), getCoords(), getDownload(), getHref(), getHreflang(), getMedia(), getName(), getRel(), getRev(), getShape(), getTarget(), getType()
} // End of class declaration
// Class constructor method declaration
void a::new() {
// Defines the start of the opening tag for the class
this.opens = "<a"
// Defines the end of the opening tag for the class
this.opene = ">"
// Defines the closing tag for the class
this.close = "</a>"
} // End of class constructor method definition
// Setter method for class arguments (appear between HTML tags)
class a scalar a::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
// Not supported in HTML5.Specifies the character-set of a linked document
class a scalar a::setCharset(| string scalar methodarg) {
// Set the attribute charset for this class
this.htmlcharset = `" charset=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method charset declaration for class a
// Not supported in HTML5.Specifies the coordinates of a link
class a scalar a::setCoords(| string scalar methodarg) {
// Set the attribute coords for this class
this.htmlcoords = `" coords=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method coords declaration for class a
// Specifies that the target will be downloaded when a user clicks on the hyperlink
class a scalar a::setDownload(| string scalar methodarg) {
// Set the attribute download for this class
this.htmldownload = `" download=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method download declaration for class a
// Specifies the URL of the page the link goes to
class a scalar a::setHref(| string scalar methodarg) {
// Set the attribute href for this class
this.htmlhref = `" href=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method href declaration for class a
// Specifies the language of the linked document
class a scalar a::setHreflang(| string scalar methodarg) {
// Set the attribute hreflang for this class
this.htmlhreflang = `" hreflang=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method hreflang declaration for class a
// Specifies what media/device the linked document is optimized for
class a scalar a::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 a
// Not supported in HTML5. Use the global id attribute instead.Specifies the name of an anchor
class a scalar a::setName(| string scalar methodarg) {
// Set the attribute name for this class
this.htmlname = `" name=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method name declaration for class a
// Specifies the relationship between the current document and the linked document
class a scalar a::setRel(| string scalar methodarg) {
// Validate argument
if (methodarg == "alternate" | methodarg == "author" | methodarg == "bookmark" | methodarg == "help" | methodarg == "license" | methodarg == "next" | methodarg == "nofollow" | methodarg == "noreferrer" | methodarg == "prefetch" | methodarg == "prev" | methodarg == "search" | methodarg == "tag") {
// Set the attribute value
this.htmlrel = `" rel=""' + methodarg + `"""'
} // End IF Block for validated argument value
// Return a copy of the object
return(this)
} // End of Method rel declaration for class a
// Not supported in HTML5.Specifies the relationship between the linked document and the current document
class a scalar a::setRev(| string scalar methodarg) {
// Set the attribute rev for this class
this.htmlrev = `" rev=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method rev declaration for class a
// Not supported in HTML5.Specifies the shape of a link
class a scalar a::setShape(| string scalar methodarg) {
// Validate argument
if (methodarg == "default" | methodarg == "rect" | methodarg == "circle" | methodarg == "poly") {
// Set the attribute value
this.htmlshape = `" shape=""' + methodarg + `"""'
} // End IF Block for validated argument value
// Return a copy of the object
return(this)
} // End of Method shape declaration for class a
// Specifies where to open the linked document
class a scalar a::setTarget(| string scalar methodarg) {
// Validate argument
if (methodarg == "_blank" | methodarg == "_parent" | methodarg == "_self" | methodarg == "_top" | methodarg == "framename") {
// Set the attribute value
this.htmltarget = `" target=""' + methodarg + `"""'
} // End IF Block for validated argument value
// Return a copy of the object
return(this)
} // End of Method target declaration for class a
// Specifies the media type of the linked document
class a scalar a::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 a
// Getter method for opening bracket
string scalar a::getOpens() {
// Returns the opening bracket/tag w/o > character to allow attributes
return(this.opens)
} // End of getter method for opens member of class a
// Getter method for opening bracket closing character
string scalar a::getOpene() {
// Returns the closing character for the opening bracket
return(this.opene)
} // End of getter method for opene member of class a
// Getter method for closing bracket
string scalar a::getClose() {
// Returns the closing bracket/tag
return(this.close)
} // End of getter method for close member of class a
// Getter method for class arguments
string scalar a::getClassArgs() {
// Returns the class arguments that appear between the HTML tags
return(this.classargs)
} // End of getter method for class arguments member of class a
// Getter method for charset member variable
string scalar a::getCharset() {
// Returns the charset variable
return(this.htmlcharset)
} // End of getter method for charset member of class a
// Getter method for coords member variable
string scalar a::getCoords() {
// Returns the coords variable
return(this.htmlcoords)
} // End of getter method for coords member of class a
// Getter method for download member variable
string scalar a::getDownload() {
// Returns the download variable
return(this.htmldownload)
} // End of getter method for download member of class a
// Getter method for href member variable
string scalar a::getHref() {
// Returns the href variable
return(this.htmlhref)
} // End of getter method for href member of class a
// Getter method for hreflang member variable
string scalar a::getHreflang() {
// Returns the hreflang variable
return(this.htmlhreflang)
} // End of getter method for hreflang member of class a
// Getter method for media member variable
string scalar a::getMedia() {
// Returns the media variable
return(this.htmlmedia)
} // End of getter method for media member of class a
// Getter method for name member variable
string scalar a::getName() {
// Returns the name variable
return(this.htmlname)
} // End of getter method for name member of class a
// Getter method for rel member variable
string scalar a::getRel() {
// Returns the rel variable
return(this.htmlrel)
} // End of getter method for rel member of class a
// Getter method for rev member variable
string scalar a::getRev() {
// Returns the rev variable
return(this.htmlrev)
} // End of getter method for rev member of class a
// Getter method for shape member variable
string scalar a::getShape() {
// Returns the shape variable
return(this.htmlshape)
} // End of getter method for shape member of class a
// Getter method for target member variable
string scalar a::getTarget() {
// Returns the target variable
return(this.htmltarget)
} // End of getter method for target member of class a
// Getter method for type member variable
string scalar a::getType() {
// Returns the type variable
return(this.htmltype)
} // End of getter method for type member of class a
// Get the HTML tag w/attributes and arguments
string scalar a::print() {
// Create local variables to piece together return string
string scalar open, args, close
// Create opening string
open = getOpens() + getCharset() + getCoords() + getDownload() + getHref() + getHreflang() + getMedia() + getName() + getRel() + getRev() + getShape() + getTarget() + 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 a
// End of Mata session
end