Module: Tenjin::HtmlHelper

Included in:
Context
Defined in:
lib/tenjin.rb

Overview

helper module for Context class

Constant Summary collapse

XML_ESCAPE_TABLE = 
{ '&'=>'&amp;', '<'=>'&lt;', '>'=>'&gt;', '"'=>'&quot;', "'"=>'&#039;' }

Class Method Summary collapse

Class Method Details

.checked(expr) ⇒ Object

return ‘ checked=“checked”’ if expr is not false or nil



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# File 'lib/tenjin.rb', line 73

def checked(expr)
  return expr ? ' checked="checked"' : ''
end

.disabled(expr) ⇒ Object

return ‘ disabled=“disabled”’ if expr is not false or nil



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# File 'lib/tenjin.rb', line 83

def disabled(expr)
  return expr ? ' disabled="disabled"' : ''
end

.escape_xml(s) ⇒ Object Also known as: escape 



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# File 'lib/tenjin.rb', line 45

def escape_xml(s)
  #return s.gsub(/[&<>"]/) { XML_ESCAPE_TABLE[$&] }
  return s.gsub(/[&<>"]/) { |s| XML_ESCAPE_TABLE[s] }
  ##
  #s = s.gsub(/&/, '&amp;')
  #s.gsub!(/</, '&lt;')
  #s.gsub!(/>/, '&gt;')
  #s.gsub!(/"/, '&quot;')
  #return s
  ##
  #return s.gsub(/&/, '&amp;').gsub(/</, '&lt;').gsub(/>/, '&gt;').gsub(/"/, '&quot;')
end

.nl2br(text) ⇒ Object

convert “n” into “<br />n”



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# File 'lib/tenjin.rb', line 88

def nl2br(text)
  return text.to_s.gsub(/\n/, "<br />\n")
end

.selected(expr) ⇒ Object

return ‘ selected=“selected”’ if expr is not false or nil



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# File 'lib/tenjin.rb', line 78

def selected(expr)
  return expr ? ' selected="selected"' : ''
end

.tagattr(name, expr, value = nil, escape = true) ⇒ Object

(experimental) return ‘ name=“value”’ if expr is not false nor nil. if value is nil or false then expr is used as value.



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# File 'lib/tenjin.rb', line 62

def tagattr(name, expr, value=nil, escape=true)
  if !expr
    return ''
  elsif escape
    return " #{name}=\"#{escape_xml((value || expr).to_s)}\""
  else
    return " #{name}=\"#{value || expr}\""
  end
end

.text2html(text) ⇒ Object

convert “n” and “ ” into “<br />n” and “ &nbsp;”



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# File 'lib/tenjin.rb', line 93

def text2html(text)
  return nl2br(escape_xml(text.to_s).gsub(/  /, ' &nbsp;'))
end