====== Syntax Highlighting ====== DokuWiki includes support for code syntax highlighting as described at the [[wiki:syntax#syntax_highlighting|syntax page]]. Starting with DokuWiki release "Greebo" some additional GeShi options for syntax highlighting are supported: * Enable line numbers: ''%%enable_line_numbers="true"%%'' * Start line numbers at line **n**: ''%%start_line_numbers_at="42"%%'' * Highlight certain lines extra: ''%%highlight_lines_extra="2,5"%%'' * Disable keyword linking to appropriate documentation: ''%%enable_keyword_links="false"%%'' All options are set by adding some key-value pairs to the standard ''code''-tag syntax.



The following examples explain their usage.

===== Examples =====

The following code enables line numbers:
  
  var de = function() {
  	return (typeof(window.de) == 'object') ? window.de : {};
  }();
  

This is the result:


var de = function() {
	return (typeof(window.de) == 'object') ? window.de : {};
}();


The next example additionally highlights one line:
  
  var de = function() {
  	return (typeof(window.de) == 'object') ? window.de : {};
  }();
  

This is the result:

var de = function() {
	return (typeof(window.de) == 'object') ? window.de : {};
}();


You can also highlight multiple lines:
  
  var de = function() {
  	return (typeof(window.de) == 'object') ? window.de : {};
  }();
  

This is the result:

var de = function() {
	return (typeof(window.de) == 'object') ? window.de : {};
}();


Line numbers can start at any given value:
  
  void main () {
      printf ("Hello World!");
      exit 0;
  }
  

This is the result:


void main () {
    printf ("Hello World!");
    exit 0;
}



Some languages has keywords that link to appropriate documentation. This can be disabled:
  
  void main () {
      printf ("Hello World!");
      exit 0;
  }
  

This is the result:


void main () {
    printf ("Hello World!");
    exit 0;
}