# SimpleTextMarkup is a XHTML compliant markup class, this was based
# on RedCloth and was written as a custom lightweight replacement.
# 
class SimpleTextMarkup
# How to Use:
# 
# Create the SimpletextMarkup object
#  oMarkup = SimpleTextMarkup.new(pYourString)
# 
# Return converted to xhtml
#  oMarkup.to_xhtml #=> "html code"
#  
#  
#  
# How to Markup:
# 
# ==Strong Text
# To make some text use a strong CSS class, put a * around the text
# 
# Example
#  *Strong Text*
#  
# Will become:
#  <span class="strongText">Strong Text</span>
# 
# 
# 
# == Code
# To make a pre tag, put the content in [code] tags.
# 
# Optional: To use a terminal class within you CSS to display text 
#           differently use [terminal] tags.
# 
# Example:
#  [code]this is some code[/code]
#  [terminal]this is a command[/terminal]
#  
# Will become:
#  <pre>this is some code</pre>
#  <pre class="terminal">this is a command</pre>
# 
# 
    attr_accessor :string

    #
    # Returns a new SimpleTextMarkup
    # 
    # Example:
    #  oMarkup = SimpleTextMarkup.new(pYourString)
    def initialize(pString)
        self.string = pString
    end
    
    
    #
    # Create the XHTML from the SimpleTextMarkup
    # 
    # Example:
    #  oMarkup = SimpleTextMarkup.new(pYourString)
    #  oMarkup.to_xhtml #=> "html code"
    def to_xhtml
        return self.string if self.string.blank?
        
        #add paragraphs
        stm_add_paragraph
        
        #replace [code] with <pre>
        stm_code_to_pre

        #replace [terminal] with <pre>
        stm_terminal_to_pre

        #cleanup un-used paragraphs
        stm_remove_empty_paragraphs


        return self.string
    end
    
    
    #
    # Create the basic XHTML from the SimpleTextMarkup
    # 
    # Example:
    #  oMarkup = SimpleTextMarkup.new(pYourString)
    #  oMarkup.to_xhtml_basic #=> "html code"
    def to_xhtml_basic
        return self.string if self.string.blank?
        
        #add paragraphs
        stm_add_paragraph

        #cleanup un-used paragraphs
        stm_remove_empty_paragraphs

        return self.string
    end
    
protected
#
#new tags
#
    #
    # add paragraph
    def stm_add_paragraph
        self.string ='<p>' + self.string + '</p>'
    end
#
#replace functions
#
    #
    # replace [code] with <pre>
    def stm_code_to_pre
        self.string.gsub!(/\[code\]/, '</p><pre>')
        self.string.gsub!(/\[\/code\]/, '</pre><p>')
    end
    
    
    #
    # replace [terminal] with <pre>
    def stm_terminal_to_pre
        self.string.gsub!(/\[terminal\]/, '</p><pre class="terminal">')
        self.string.gsub!(/\[\/terminal\]/, '</pre><p>')
    end
    
    
#
#cleanup functons
#
   
    #
    # remove empty paragraphs
    def stm_remove_empty_paragraphs
        self.string.gsub!(/<p><\/p>/, '') 
    end
   


end