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htmlscript.mata
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htmlscript.mata
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// Switch to Mata interpreter/compiler
mata:
// Drops class object if it already exists
// mata drop script()
// Definition of HTML Tag script Mata Class
// Defines a client-side script// Information retrieved from http://www.w3schools.com/tags/tag_script.asp
class script extends htmlglobal {
// Define private member variables
private:
// Static/final variables
static string scalar opens, opene, close
// String scalar attributes
string scalar htmlasync, htmlcharset, htmldefer, htmlsrc, htmltype, htmlxmlspace
// 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 script scalar setClassArgs(), setAsync(), setCharset(), setDefer(), setSrc(), setType(), setXmlspace()
// Getter methods
string scalar getOpens(), getOpene(), getClose(), print(), getClassArgs(), getAsync(), getCharset(), getDefer(), getSrc(), getType(), getXmlspace()
} // End of class declaration
// Class constructor method declaration
void script::new() {
// Defines the start of the opening tag for the class
this.opens = "<script"
// Defines the end of the opening tag for the class
this.opene = ">"
// Defines the closing tag for the class
this.close = "</script>"
} // End of class constructor method definition
// Setter method for class arguments (appear between HTML tags)
class script scalar script::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 that the script is executed asynchronously (only for external scripts)
class script scalar script::setAsync(| string scalar methodarg) {
// Set the attribute async for this class
this.htmlasync = `" async=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method async declaration for class script
// Specifies the character encoding used in an external script file
class script scalar script::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 script
// Specifies that the script is executed when the page has finished parsing (only for external scripts)
class script scalar script::setDefer(| string scalar methodarg) {
// Set the attribute defer for this class
this.htmldefer = `" defer=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method defer declaration for class script
// Specifies the URL of an external script file
class script scalar script::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 script
// Specifies the media type of the script
class script scalar script::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 script
// Not supported in HTML5.Specifies whether whitespace in code should be preserved
class script scalar script::setXmlspace(| string scalar methodarg) {
// Set the attribute xmlspace for this class
this.htmlxmlspace = `" xml:space=""' + methodarg + `"""'
// Return a copy of the object
return(this)
} // End of Method xmlspace declaration for class script
// Getter method for opening bracket
string scalar script::getOpens() {
// Returns the opening bracket/tag w/o > character to allow attributes
return(this.opens)
} // End of getter method for opens member of class script
// Getter method for opening bracket closing character
string scalar script::getOpene() {
// Returns the closing character for the opening bracket
return(this.opene)
} // End of getter method for opene member of class script
// Getter method for closing bracket
string scalar script::getClose() {
// Returns the closing bracket/tag
return(this.close)
} // End of getter method for close member of class script
// Getter method for class arguments
string scalar script::getClassArgs() {
// Returns the class arguments that appear between the HTML tags
return(this.classargs)
} // End of getter method for class arguments member of class script
// Getter method for async member variable
string scalar script::getAsync() {
// Returns the async variable
return(this.htmlasync)
} // End of getter method for async member of class script
// Getter method for charset member variable
string scalar script::getCharset() {
// Returns the charset variable
return(this.htmlcharset)
} // End of getter method for charset member of class script
// Getter method for defer member variable
string scalar script::getDefer() {
// Returns the defer variable
return(this.htmldefer)
} // End of getter method for defer member of class script
// Getter method for src member variable
string scalar script::getSrc() {
// Returns the src variable
return(this.htmlsrc)
} // End of getter method for src member of class script
// Getter method for type member variable
string scalar script::getType() {
// Returns the type variable
return(this.htmltype)
} // End of getter method for type member of class script
// Getter method for xmlspace member variable
string scalar script::getXmlspace() {
// Returns the xmlspace variable
return(this.htmlxmlspace)
} // End of getter method for xmlspace member of class script
// Get the HTML tag w/attributes and arguments
string scalar script::print() {
// Create local variables to piece together return string
string scalar open, args, close
// Create opening string
open = getOpens() + getAsync() + getCharset() + getDefer() + getSrc() + getType() + getXmlspace() + 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 script
// End of Mata session
end