Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/html_tagger.rb

Instance Method Summary collapse

Instance Method Details

#add_class(added_class) ⇒ Object 



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# File 'lib/html_tagger.rb', line 49

def add_class(added_class)
  styles('class:'+added_class)
end

#add_style(style) ⇒ Object

compat with 0.0.1 gem



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# File 'lib/html_tagger.rb', line 114

def add_style(style)
  '<span style="' + style + '">' + self + "</span>"
end

#bold ⇒ Object 



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# File 'lib/html_tagger.rb', line 9

def bold
  styles('bold')
end

#color(text_color) ⇒ Object 



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# File 'lib/html_tagger.rb', line 13

def color(text_color)
  styles('color:'+text_color)
end

#italics ⇒ Object 



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# File 'lib/html_tagger.rb', line 17

def italics
  styles('italics')
end

#link(linked_to_url) ⇒ Object 



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# File 'lib/html_tagger.rb', line 5

def link(linked_to_url)
  styles('link:'+linked_to_url)
end

#oblique ⇒ Object 



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# File 'lib/html_tagger.rb', line 21

def oblique
  styles('oblique')
end

#strikeout ⇒ Object 



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# File 'lib/html_tagger.rb', line 33

def strikeout
  styles('strikeout')
end

#styles(*styles) ⇒ Object 



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# File 'lib/html_tagger.rb', line 53

def styles(*styles)

  tag_attrs = {}

  supported_wrapper_tags = ['span', 'div', 'p']

  wrap_tags = { 'before' => [], 'after' => []}

  block = 'span'

  if (styles.first.is_a?(Symbol))  # specify block type
    block = styles.first.to_s
    raise "Supported wrapper tags are "+ supported_wrapper_tags.join(' and ') unless supported_wrapper_tags.include?(block)
    styles.shift
  end

  styles.reverse.each do |styl|

    case styl
      when /^id:(.+)/
        raise "Only one ID allowed for an element." if tag_attrs['id']
        tag_attrs['id']     = $1
      when /^link:(.+)/
        wrap_tags['before'] <<  "<a href=\"#{$1}\">"
        wrap_tags['after']  = ['</a>'] + wrap_tags['after']
      when /^class:(.+)/
        tag_attrs['class']  = $1 + (tag_attrs['class'].nil? ? '' : ' ' + tag_attrs['class'])
      when /^color:(.+)/
        tag_attrs['color']  = $1     # first wins if specified > 1 time
      when 'bold'
        tag_attrs['style']  = 'font-weight:bold; '                          + tag_attrs['style'].to_s
      when /^italics?$/
        tag_attrs['style']  = 'font-style:italic; '                         + tag_attrs['style'].to_s
      when /^under(line|score)$/
        tag_attrs['style']  = 'text-decoration:underline; '                 + tag_attrs['style'].to_s
      when 'oblique'
        tag_attrs['style']  = 'font-style:oblique; '                        + tag_attrs['style'].to_s
      when /^strike(out|through)$/
        tag_attrs['style']  = 'text-decoration:line-through; '              + tag_attrs['style'].to_s
      when 'subscript'
        tag_attrs['style']  = 'font-size:xx-small; vertical-align:bottom; ' + tag_attrs['style'].to_s
      when 'superscript'
        tag_attrs['style']  = 'font-size:xx-small; vertical-align:top; '    + tag_attrs['style'].to_s
      else
        raise "Unexpected style element."
    end

  end

  block_wrapper = ''
  block_closer = ''
  unless tag_attrs.empty?
    block_wrapper = '<' + block  +  ' ' +
        tag_attrs.keys.inject(''){ |accum, html_attr| accum +  html_attr + '="' + tag_attrs[html_attr].chomp('; ') + '" '}.chomp(' ')   + '>'
    block_closer = '</' + block + '>'
  end
  wrap_tags['before'].join +  block_wrapper + self + block_closer + wrap_tags['after'].join

end

#subscript ⇒ Object 



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# File 'lib/html_tagger.rb', line 37

def subscript
  styles('subscript')
end

#superscript ⇒ Object 



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

def superscript
  styles('superscript')
end

#tag_id(id_to_set) ⇒ Object 



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# File 'lib/html_tagger.rb', line 41

def tag_id(id_to_set)
  styles('id:'+id_to_set)
end

#underline ⇒ Object 



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# File 'lib/html_tagger.rb', line 29

def underline
 styles('underline')
end

#underscore ⇒ Object 



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# File 'lib/html_tagger.rb', line 25

def underscore
  styles('underline')
end