match-macro.js

function match (id, target, contents, macroName) {
    return $(document.createElement('span'))
        .attr({'id' : id, 'data-term' : target })
        .addClass('macro-' + macroName)
        .wiki(contents);
}

function change (id, replacement) {
    var $el = $(id),
        text = $el.text(),
        target = $el.attr('data-term'), 
        $content;
    
    target = new RegExp(target, 'g');
    
    text = text.replace(target, replacement);
    
    $content = $el.empty().wiki(text);
}

Macro.add('match', {
       tags : null,
    handler : function () {
        
        if (this.args.length < 2 || this.args.length > 2) {
            return this.error('incorrect number of arguments');
        }
		
        var id = Util.slugify(this.args[0]),
            target = this.args[1], $content;
		
        $content = match(id, target, this.payload[0].contents, this.name);
	
        $content.appendTo(this.output);
        
    }
});

Macro.add('change', {
    handler : function () {
        
        if (this.args.length < 2 || this.args.length > 2) {
            return this.error('incorrect number of arguments');
        }
        
        var id = Util.slugify(this.args[0]),
            replacement = this.args[1];
        
        change('#' + id, replacement);
        
    }
});