module ActionView::Helpers::TextHelper

def concat(string)

%>
# will either display "Logged in!" or a login link
end
concat link_to('login', action: :login)
else
concat "Logged in!"
if logged_in

# is the equivalent of <%= "hello" %>
concat "hello"
<%

output text within a non-output code block (i.e., <% %>), you can use the concat method.
do not operate as expected in an eRuby code block. If you absolutely must
<%= "text" %> eRuby syntax. The regular _puts_ and _print_ methods
The preferred method of outputting text in your views is to use the 
def concat(string)
  output_buffer << string
end

def current_cycle(name = "default")

<% end %>

<%= item %>
">
<% @items.each do |item| %>
@items = [1,2,3,4]
# Alternate background colors

the current cycle string in more than one place.
for complex table highlighting or any other design need which requires
Returns the current cycle string after a cycle has been started. Useful 
def current_cycle(name = "default")
  cycle = get_cycle(name)
  cycle.current_value if cycle
end

def cut_excerpt_part(part_position, part, separator, options) 

def cut_excerpt_part(part_position, part, separator, options)
  return "", "" unless part
  radius   = options.fetch(:radius, 100)
  omission = options.fetch(:omission, "...")
  part = part.split(separator)
  part.delete("")
  affix = part.size > radius ? omission : ""
  part = if part_position == :first
    drop_index = [part.length - radius, 0].max
    part.drop(drop_index)
  else
    part.first(radius)
  end
  return affix, part.join(separator)
end

def cycle(first_value, *values)

<% end %>


<% reset_cycle("colors") %>
<% end %>

<%= value %>
">
<%# Create a named cycle "colors" %>
<% item.values.each do |value| %>

">
<% @items.each do |item| %>
{first: 'June', middle: 'Dae', last: 'Jones'}]
{first: 'Emily', middle: 'Shannon', maiden: 'Pike', last: 'Hicks'},
@items = x = [{first: 'Robert', middle: 'Daniel', last: 'James'},
# Cycle CSS classes for rows, and text colors for values within each row



<% end %>

item
">
<% @items.each do |item| %>

@items = [1,2,3,4]
# Alternate CSS classes for even and odd numbers...

anytime using the current_cycle method.
and passing the name of the cycle. The current cycle string can be obtained
"default". You can manually reset a cycle by calling reset_cycle
named cycle. The default name for a cycle without a +:name+ key is
Passing a Hash as the last parameter with a :name key will create a
classes for table rows. You can use named cycles to allow nesting in loops.
array every time it is called. This can be used for example, to alternate
Creates a Cycle object whose _to_s_ method cycles through elements of an 
def cycle(first_value, *values)
  options = values.extract_options!
  name = options.fetch(:name, 'default')
  values.unshift(*first_value)
  cycle = get_cycle(name)
  unless cycle && cycle.values == values
    cycle = set_cycle(name, Cycle.new(*values))
  end
  cycle.to_s
end

def excerpt(text, phrase, options = {})

# => ...a very beautiful...
excerpt('This is a very beautiful morning', 'very', separator: ' ', radius: 1)

# => is also an example
excerpt('This is also an example', 'an', radius: 8, omission: ' ')

# => ...next...
excerpt('This next thing is an example', 'ex', radius: 2)

# => This is an example
excerpt('This is an example', 'is')

# => This is a...
excerpt('This is an example', 'is', radius: 5)

# => ...s is an exam...
excerpt('This is an example', 'an', radius: 5)

isn't found, nil is returned.
:separator option to choose the delimitation. The resulting string will be stripped in any case. If the +phrase+
then the :omission option (which defaults to "...") will be prepended/appended accordingly. Use the
defined in :radius (which defaults to 100). If the excerpt radius overflows the beginning or end of the +text+,
The :radius option expands the excerpt on each side of the first occurrence of +phrase+ by the number of characters
Extracts an excerpt from +text+ that matches the first instance of +phrase+. 
def excerpt(text, phrase, options = {})
  return unless text && phrase
  separator = options[:separator] || ''
  phrase    = Regexp.escape(phrase)
  regex     = /#{phrase}/i
  return unless matches = text.match(regex)
  phrase = matches[0]
  unless separator.empty?
    text.split(separator).each do |value|
      if value.match(regex)
        regex = phrase = value
        break
      end
    end
  end
  first_part, second_part = text.split(regex, 2)
  prefix, first_part   = cut_excerpt_part(:first, first_part, separator, options)
  postfix, second_part = cut_excerpt_part(:second, second_part, separator, options)
  affix = [first_part, separator, phrase, separator, second_part].join.strip
  [prefix, affix, postfix].join
end

def get_cycle(name)

uses an instance variable of ActionView::Base.
guaranteed to be reset every time a page is rendered, so it
The cycle helpers need to store the cycles in a place that is 
def get_cycle(name)
  @_cycles = Hash.new unless defined?(@_cycles)
  return @_cycles[name]
end

def highlight(text, phrases, options = {})

# => You searched for: rails
highlight('You searched for: rails', 'rails', highlighter: '\1')

# => You searched for: rails
highlight('You searched for: rails', ['for', 'rails'], highlighter: '\1')

# => You searched for: ruby, rails, dhh
highlight('You searched for: ruby, rails, dhh', 'actionpack')

# => You searched for: rails
highlight('You searched for: rails', 'rails')

'\1')
as a single-quoted string with \1 where the phrase is to be inserted (defaults to
a :highlighter string. The highlighter can be specialized by passing :highlighter
Highlights one or more +phrases+ everywhere in +text+ by inserting it into 
def highlight(text, phrases, options = {})
  text = sanitize(text) if options.fetch(:sanitize, true)
  if text.blank? || phrases.blank?
    text
  else
    highlighter = options.fetch(:highlighter, '<mark>\1</mark>')
    match = Array(phrases).map { |p| Regexp.escape(p) }.join('|')
    text.gsub(/(#{match})(?![^<]*?>)/i, highlighter)
  end.html_safe
end

def pluralize(count, singular, plural = nil)

# => 0 people
pluralize(0, 'person')

# => 3 users
pluralize(3, 'person', 'users')

# => 2 people
pluralize(2, 'person')

# => 1 person
pluralize(1, 'person')

it will use the Inflector to determine the plural form.
+plural+ is supplied, it will use that when count is > 1, otherwise
Attempts to pluralize the +singular+ word unless +count+ is 1. If 
def pluralize(count, singular, plural = nil)
  word = if (count == 1 || count =~ /^1(\.0+)?$/)
    singular
  else
    plural || singular.pluralize
  end
  "#{count || 0} #{word}"
end

def reset_cycle(name = "default")


<% end %>

<% reset_cycle("colors") %>

<% end %>

<%= value %>
">
<% item.each do |value| %>
">
<% @items.each do |item| %>

@items = [[1,2,3,4], [5,6,3], [3,4,5,6,7,4]]
# Alternate CSS classes for even and odd numbers...

it is called. Pass in +name+ to reset a named cycle.
Resets a cycle so that it starts from the first element the next time 
def reset_cycle(name = "default")
  cycle = get_cycle(name)
  cycle.reset if cycle
end

def safe_concat(string) 

def safe_concat(string)
  output_buffer.respond_to?(:safe_concat) ? output_buffer.safe_concat(string) : concat(string)
end

def set_cycle(name, cycle_object) 

def set_cycle(name, cycle_object)
  @_cycles = Hash.new unless defined?(@_cycles)
  @_cycles[name] = cycle_object
end

def simple_format(text, html_options = {}, options = {})

# => "

Blinkable! It's true.

"
simple_format("Blinkable! It's true.", {}, sanitize: false)

# => "

Unblinkable.

"
simple_format("Unblinkable.")

# => "

Look ma! A class!

"
simple_format("Look ma! A class!", class: 'description')

# => "

We want to put a paragraph...

\n\n

...right there.

"
simple_format(more_text)

more_text = "We want to put a paragraph...\n\n...right there."

# => "
Here is some basic text...\n
...with a line break.
"
simple_format(my_text, {}, wrapper_tag: "div")

# => "

Here is some basic text...\n
...with a line break.

"
simple_format(my_text)

my_text = "Here is some basic text...\n...with a line break."
==== Examples

* :wrapper_tag - String representing the wrapper tag, defaults to "p"
* :sanitize - If +false+, does not sanitize +text+.
==== Options

will be added to all created paragraphs.
You can pass any HTML attributes into html_options. These

method does not remove the newlines from the +text+.
considered as a linebreak and a
tag is appended. This
paragraph and wrapped in

tags. One newline (\n) is
Two or more consecutive newlines(\n\n) are considered as a
Returns +text+ transformed into HTML using simple formatting rules. 

def simple_format(text, html_options = {}, options = {})
  wrapper_tag = options.fetch(:wrapper_tag, :p)
  text = sanitize(text) if options.fetch(:sanitize, true)
  paragraphs = split_paragraphs(text)
  if paragraphs.empty?
    content_tag(wrapper_tag, nil, html_options)
  else
    paragraphs.map! { |paragraph|
      content_tag(wrapper_tag, raw(paragraph), html_options)
    }.join("\n\n").html_safe
  end
end

def split_paragraphs(text) 

def split_paragraphs(text)
  return [] if text.blank?
  text.to_str.gsub(/\r\n?/, "\n").split(/\n\n+/).map! do |t|
    t.gsub!(/([^\n]\n)(?=[^\n])/, '\1<br />') || t
  end
end

def truncate(text, options = {}, &block)

# => "Once upon a time in a wo...Continue"
truncate("Once upon a time in a world far far away") { link_to "Continue", "#" }

# => "

Once upon a time in a wo..."
truncate("

Once upon a time in a world far far away

", escape: false)

# => "<p>Once upon a time in a wo..."
truncate("

Once upon a time in a world far far away

")

# => "And they f... (continued)"
truncate("And they found that many people were sleeping better.", length: 25, omission: '... (continued)')

# => "Once upon a..."
truncate("Once upon a time in a world far far away", length: 17, separator: ' ')

# => "Once upon a ti..."
truncate("Once upon a time in a world far far away", length: 17)

# => "Once upon a time in a world..."
truncate("Once upon a time in a world far far away")

may produce invalid HTML (such as unbalanced or incomplete tags).
+false+. Care should be taken if +text+ contains HTML tags or entities, because truncation
The result is marked as HTML-safe, but it is escaped by default, unless :escape is

Pass a block if you want to show extra content when the text is truncated.

Pass a :separator to truncate +text+ at a natural break.

for a total length not exceeding :length.
(defaults to 30). The last characters will be replaced with the :omission (defaults to "...")
Truncates a given +text+ after a given :length if +text+ is longer than :length 
def truncate(text, options = {}, &block)
  if text
    length  = options.fetch(:length, 30)
    content = text.truncate(length, options)
    content = options[:escape] == false ? content.html_safe : ERB::Util.html_escape(content)
    content << capture(&block) if block_given? && text.length > length
    content
  end
end

def word_wrap(text, options = {})

# => Once\nupon\na\ntime
word_wrap('Once upon a time', line_width: 1)

# => Once\nupon a\ntime
word_wrap('Once upon a time', line_width: 8)

# => Once upon a time, in a kingdom called Far Far Away, a king fell ill, and finding\na successor to the throne turned out to be more trouble than anyone could have\nimagined...
word_wrap('Once upon a time, in a kingdom called Far Far Away, a king fell ill, and finding a successor to the throne turned out to be more trouble than anyone could have imagined...')

# => Once upon a time
word_wrap('Once upon a time')

(which is 80 by default).
breaks on the first whitespace character that does not exceed +line_width+
Wraps the +text+ into lines no longer than +line_width+ width. This method 
def word_wrap(text, options = {})
  line_width = options.fetch(:line_width, 80)
  text.split("\n").collect! do |line|
    line.length > line_width ? line.gsub(/(.{1,#{line_width}})(\s+|$)/, "\\1\n").strip : line
  end * "\n"
end