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htmllink.mata
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htmllink.mata
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// Switch to Mata interpreter/compiler
mata:
// Drops class object if it already exists
// mata drop link()
// Definition of HTML Tag link Mata Class
// Defines the relationship between a document and an external resource (most used to link to style sheets)// Information retrieved from http://www.w3schools.com/tags/tag_link.asp
class link extends htmlglobal {
// Define private member variables
private:
// Static/final variables
static string scalar opens, opene, close
// String scalar attributes
string scalar htmlcharset, htmlcrossorigin, htmlhref, htmlhreflang, htmlmedia, htmlrel, htmlrev, htmlsizes, 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 link scalar setClassArgs(), setCharset(), setCrossorigin(), setHref(), setHreflang(), setMedia(), setRel(), setRev(), setSizes(), setTarget(), setType()
// Getter methods
string scalar getOpens(), getOpene(), getClose(), print(), getClassArgs(), getCharset(), getCrossorigin(), getHref(), getHreflang(), getMedia(), getRel(), getRev(), getSizes(), getTarget(), getType()
} // End of class declaration
// Class constructor method declaration
void link::new() {
// Defines the start of the opening tag for the class
this.opens = "<link"
// Defines the end of the opening tag for the class
this.opene = ">"
// Defines the closing tag for the class
this.close = "</link>"
} // End of class constructor method definition
// Setter method for class arguments (appear between HTML tags)
class link scalar link::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 encoding of the linked document
class link scalar link::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 link
// Specifies how the element handles cross-origin requests
class link scalar link::setCrossorigin(| string scalar methodarg) {
// Set the attribute crossorigin for this class
this.htmlcrossorigin = `" crossorigin=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method crossorigin declaration for class link
// Specifies the location of the linked document
class link scalar link::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 link
// Specifies the language of the text in the linked document
class link scalar link::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 link
// Specifies on what device the linked document will be displayed
class link scalar link::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 link
// Required. Specifies the relationship between the current document and the linked document
class link scalar link::setRel(| string scalar methodarg) {
// Validate argument
if (methodarg == "alternate" | methodarg == "archives" | methodarg == "author" | methodarg == "bookmark" | methodarg == "external" | methodarg == "first" | methodarg == "help" | methodarg == "icon" | methodarg == "last" | methodarg == "license" | methodarg == "next" | methodarg == "nofollow" | methodarg == "noreferrer" | methodarg == "pingback" | methodarg == "prefetch" | methodarg == "prev" | methodarg == "search" | methodarg == "sidebar" | methodarg == "stylesheet" | methodarg == "tag" | methodarg == "up") {
// 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 link
// Not supported in HTML5.Specifies the relationship between the linked document and the current document
class link scalar link::setRev(| string scalar methodarg) {
// Validate argument
if (methodarg == "reversed" | methodarg == "relationship") {
// Set the attribute value
this.htmlrev = `" rev=""' + methodarg + `"""'
} // End IF Block for validated argument value
// Return a copy of the object
return(this)
} // End of Method rev declaration for class link
// Specifies the size of the linked resource. Only for rel="icon"
class link scalar link::setSizes(| string scalar methodarg) {
// Validate argument
if (methodarg == "HeightxWidth" | methodarg == "any") {
// Set the attribute value
this.htmlsizes = `" sizes=""' + methodarg + `"""'
} // End IF Block for validated argument value
// Return a copy of the object
return(this)
} // End of Method sizes declaration for class link
// Not supported in HTML5.Specifies where the linked document is to be loaded
class link scalar link::setTarget(| string scalar methodarg) {
// Validate argument
if (methodarg == "_blank" | methodarg == "_self" | methodarg == "_top" | methodarg == "_parent" | methodarg == "frame_name") {
// 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 link
// Specifies the media type of the linked document
class link scalar link::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 link
// Getter method for opening bracket
string scalar link::getOpens() {
// Returns the opening bracket/tag w/o > character to allow attributes
return(this.opens)
} // End of getter method for opens member of class link
// Getter method for opening bracket closing character
string scalar link::getOpene() {
// Returns the closing character for the opening bracket
return(this.opene)
} // End of getter method for opene member of class link
// Getter method for closing bracket
string scalar link::getClose() {
// Returns the closing bracket/tag
return(this.close)
} // End of getter method for close member of class link
// Getter method for class arguments
string scalar link::getClassArgs() {
// Returns the class arguments that appear between the HTML tags
return(this.classargs)
} // End of getter method for class arguments member of class link
// Getter method for charset member variable
string scalar link::getCharset() {
// Returns the charset variable
return(this.htmlcharset)
} // End of getter method for charset member of class link
// Getter method for crossorigin member variable
string scalar link::getCrossorigin() {
// Returns the crossorigin variable
return(this.htmlcrossorigin)
} // End of getter method for crossorigin member of class link
// Getter method for href member variable
string scalar link::getHref() {
// Returns the href variable
return(this.htmlhref)
} // End of getter method for href member of class link
// Getter method for hreflang member variable
string scalar link::getHreflang() {
// Returns the hreflang variable
return(this.htmlhreflang)
} // End of getter method for hreflang member of class link
// Getter method for media member variable
string scalar link::getMedia() {
// Returns the media variable
return(this.htmlmedia)
} // End of getter method for media member of class link
// Getter method for rel member variable
string scalar link::getRel() {
// Returns the rel variable
return(this.htmlrel)
} // End of getter method for rel member of class link
// Getter method for rev member variable
string scalar link::getRev() {
// Returns the rev variable
return(this.htmlrev)
} // End of getter method for rev member of class link
// Getter method for sizes member variable
string scalar link::getSizes() {
// Returns the sizes variable
return(this.htmlsizes)
} // End of getter method for sizes member of class link
// Getter method for target member variable
string scalar link::getTarget() {
// Returns the target variable
return(this.htmltarget)
} // End of getter method for target member of class link
// Getter method for type member variable
string scalar link::getType() {
// Returns the type variable
return(this.htmltype)
} // End of getter method for type member of class link
// Get the HTML tag w/attributes and arguments
string scalar link::print() {
// Create local variables to piece together return string
string scalar open, args, close
// Create opening string
open = getOpens() + getCharset() + getCrossorigin() + getHref() + getHreflang() + getMedia() + getRel() + getRev() + getSizes() + 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 link
// End of Mata session
end