// Switch to Mata interpreter/compiler mata: // Drops class object if it already exists // mata drop style() // Definition of HTML Tag style Mata Class // Defines style information for a document// Information retrieved from http://www.w3schools.com/tags/tag_style.asp class style extends htmlglobal { // Define private member variables private: // Static/final variables static string scalar opens, opene, close // String scalar attributes string scalar htmlmedia, htmlscoped, 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 style scalar setClassArgs(), setMedia(), setScoped(), setType() // Getter methods string scalar getOpens(), getOpene(), getClose(), print(), getClassArgs(), getMedia(), getScoped(), getType() } // End of class declaration // Class constructor method declaration void style::new() { // Defines the start of the opening tag for the class this.opens = "<style" // Defines the end of the opening tag for the class this.opene = ">" // Defines the closing tag for the class this.close = "</style>" } // End of class constructor method definition // Setter method for class arguments (appear between HTML tags) class style scalar style::setClassArgs(| string scalar classarguments) { // Declar member variable real scalar fh // Declare members to store the overall CSS and individual lines string scalar css, line // Check whether a file exists with the value passed to the function if (fileexists(classarguments) == 1) { // Create a file handle and open the file for reading fh = fopen(classarguments, "r") // Read lines from the file w/o removing new line characters as long // as the reading does not return an error code while((line = fgetnl(fh)) != J(0, 0, "")) { // Append each line to the string scalar css css = css + line } // End While loop for reading a CSS file from disk // Close the file connection fclose(fh) // Set the classargs member of the object this.classargs = css } // End IF Block for argument as file // If the argument is not a file else { // Defines arguments that appear between HTML tags this.classargs = classarguments } // End ELSE Block for string argument // Return a copy of the object return(this) } // End of setter method for class arguments // Specifies what media/device the media resource is optimized for class style scalar style::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 style // Specifies that the styles only apply to this element's parent element and that element's child elements class style scalar style::setScoped(| string scalar methodarg) { // Set the attribute scoped for this class this.htmlscoped = `" scoped=""' + methodarg + `"""' // Return a copy of the object return(this) } // End of Method scoped declaration for class style // Specifies the media type of the <style> tag class style scalar style::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 style // Getter method for opening bracket string scalar style::getOpens() { // Returns the opening bracket/tag w/o > character to allow attributes return(this.opens) } // End of getter method for opens member of class style // Getter method for opening bracket closing character string scalar style::getOpene() { // Returns the closing character for the opening bracket return(this.opene) } // End of getter method for opene member of class style // Getter method for closing bracket string scalar style::getClose() { // Returns the closing bracket/tag return(this.close) } // End of getter method for close member of class style // Getter method for class arguments string scalar style::getClassArgs() { // Returns the class arguments that appear between the HTML tags return(this.classargs) } // End of getter method for class arguments member of class style // Getter method for media member variable string scalar style::getMedia() { // Returns the media variable return(this.htmlmedia) } // End of getter method for media member of class style // Getter method for scoped member variable string scalar style::getScoped() { // Returns the scoped variable return(this.htmlscoped) } // End of getter method for scoped member of class style // Getter method for type member variable string scalar style::getType() { // Returns the type variable return(this.htmltype) } // End of getter method for type member of class style // Get the HTML tag w/attributes and arguments string scalar style::print() { // Create local variables to piece together return string string scalar open, args, close // Create opening string open = getOpens() + getMedia() + getScoped() + getType() + globalAttrs() + getOpene() // Get class arguments args = getClassArgs() // Get closing tag close = getClose() // Return the complete HTML string return(subinstr(open, " >", ">") + char((10)) + args + char((10)) + close) } // End of print method for class style // End of Mata session end