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Edit File : comment.rb \| Size : 5.29 KB
# frozen_string_literal: false ## # A comment holds the text comment for a RDoc::CodeObject and provides a # unified way of cleaning it up and parsing it into an RDoc::Markup::Document. # # Each comment may have a different markup format set by #format=. By default # 'rdoc' is used. The :markup: directive tells RDoc which format to use. # # See RDoc::Markup@Other+directives for instructions on adding an alternate # format. class RDoc::Comment include RDoc::Text ## # The format of this comment. Defaults to RDoc::Markup attr_reader :format ## # The RDoc::TopLevel this comment was found in attr_accessor :location ## # For duck-typing when merging classes at load time alias file location # :nodoc: ## # The text for this comment attr_reader :text ## # Overrides the content returned by #parse. Use when there is no #text # source for this comment attr_writer :document ## # Creates a new comment with +text+ that is found in the RDoc::TopLevel # +location+. def initialize text = nil, location = nil @location = location @text = text @document = nil @format = 'rdoc' @normalized = false end ## #-- # TODO deep copy @document def initialize_copy copy # :nodoc: @text = copy.text.dup end def == other # :nodoc: self.class === other and other.text == @text and other.location == @location end ## # Look for a 'call-seq' in the comment to override the normal parameter # handling. The :call-seq: is indented from the baseline. All lines of the # same indentation level and prefix are consumed. # # For example, all of the following will be used as the :call-seq: # # # :call-seq: # # ARGF.readlines(sep=$/) -> array # # ARGF.readlines(limit) -> array # # ARGF.readlines(sep, limit) -> array # # # # ARGF.to_a(sep=$/) -> array # # ARGF.to_a(limit) -> array # # ARGF.to_a(sep, limit) -> array def extract_call_seq method # we must handle situations like the above followed by an unindented first # comment. The difficulty is to make sure not to match lines starting # with ARGF at the same indent, but that are after the first description # paragraph. if @text =~ /^\s:?call-seq:(.?(?:\S).?)^\s$/m then all_start, all_stop = $~.offset(0) seq_start, seq_stop = $~.offset(1) # we get the following lines that start with the leading word at the # same indent, even if they have blank lines before if $1 =~ /(^\s\n)+^(\s\w+)/m then leading = $2 # ' * ARGF' in the example above re = %r% \A( (^\s\n)+ (^#{Regexp.escape leading}.?\n)+ )+ ^\s$ %xm if @text[seq_stop..-1] =~ re then all_stop = seq_stop + $~.offset(0).last seq_stop = seq_stop + $~.offset(1).last end end seq = @text[seq_start..seq_stop] seq.gsub!(/^\s(\S\|\n)/m, '\1') @text.slice! all_start...all_stop method.call_seq = seq.chomp elsif @text.sub!(/^\s:?call-seq:(.?)(^\s$\|\z)/m, '') then seq = $1 seq.gsub!(/^\s/, '') method.call_seq = seq end method end ## # A comment is empty if its text String is empty. def empty? @text.empty? end ## # HACK dubious def force_encoding encoding @text.force_encoding encoding end ## # Sets the format of this comment and resets any parsed document def format= format @format = format @document = nil end def inspect # :nodoc: location = @location ? @location.relative_name : '(unknown)' "#<%s:%x %s %p>" % [self.class, object_id, location, @text] end ## # Normalizes the text. See RDoc::Text#normalize_comment for details def normalize return self unless @text return self if @normalized # TODO eliminate duplicate normalization @text = normalize_comment @text @normalized = true self end ## # Was this text normalized? def normalized? # :nodoc: @normalized end ## # Parses the comment into an RDoc::Markup::Document. The parsed document is # cached until the text is changed. def parse return @document if @document @document = super @text, @format @document.file = @location @document end ## # Removes private sections from this comment. Private sections are flush to # the comment marker and start with <tt>--</tt> and end with <tt>++</tt>. # For C-style comments, a private marker may not start at the opening of the # comment. # # /* # -- # private # ++ # public # / def remove_private # Workaround for gsub encoding for Ruby 1.9.2 and earlier empty = '' empty.force_encoding @text.encoding @text = @text.gsub(%r%^\s([#]?)--.?^\s(\1)\+\+\n?%m, empty) @text = @text.sub(%r%^\s[#]?--.%m, '') end ## # Replaces this comment's text with +text+ and resets the parsed document. # # An error is raised if the comment contains a document but no text. def text= text raise RDoc::Error, 'replacing document-only comment is not allowed' if @text.nil? and @document @document = nil @text = text end ## # Returns true if this comment is in TomDoc format. def tomdoc? @format == 'tomdoc' end end Back

Edit File : comment.rb | Size : 5.29 KB

# frozen_string_literal: false
##
# A comment holds the text comment for a RDoc::CodeObject and provides a
# unified way of cleaning it up and parsing it into an RDoc::Markup::Document.
#
# Each comment may have a different markup format set by #format=.  By default
# 'rdoc' is used.  The :markup: directive tells RDoc which format to use.
#
# See RDoc::Markup@Other+directives for instructions on adding an alternate
# format.

class RDoc::Comment

include RDoc::Text

##
  # The format of this comment.  Defaults to RDoc::Markup

attr_reader :format

##
  # The RDoc::TopLevel this comment was found in

attr_accessor :location

##
  # For duck-typing when merging classes at load time

alias file location # :nodoc:

##
  # The text for this comment

attr_reader :text

##
  # Overrides the content returned by #parse.  Use when there is no #text
  # source for this comment

attr_writer   :document

##
  # Creates a new comment with +text+ that is found in the RDoc::TopLevel
  # +location+.

def initialize text = nil, location = nil
    @location = location
    @text     = text

@document   = nil
    @format     = 'rdoc'
    @normalized = false
  end

##
  #--
  # TODO deep copy @document

def initialize_copy copy # :nodoc:
    @text = copy.text.dup
  end

def == other # :nodoc:
    self.class === other and
      other.text == @text and other.location == @location
  end

##
  # Look for a 'call-seq' in the comment to override the normal parameter
  # handling.  The :call-seq: is indented from the baseline.  All lines of the
  # same indentation level and prefix are consumed.
  #
  # For example, all of the following will be used as the :call-seq:
  #
  #   # :call-seq:
  #   #   ARGF.readlines(sep=$/)     -> array
  #   #   ARGF.readlines(limit)      -> array
  #   #   ARGF.readlines(sep, limit) -> array
  #   #
  #   #   ARGF.to_a(sep=$/)     -> array
  #   #   ARGF.to_a(limit)      -> array
  #   #   ARGF.to_a(sep, limit) -> array

def extract_call_seq method
    # we must handle situations like the above followed by an unindented first
    # comment.  The difficulty is to make sure not to match lines starting
    # with ARGF at the same indent, but that are after the first description
    # paragraph.
    if @text =~ /^\s*:?call-seq:(.*?(?:\S).*?)^\s*$/m then
      all_start, all_stop = $~.offset(0)
      seq_start, seq_stop = $~.offset(1)

# we get the following lines that start with the leading word at the
      # same indent, even if they have blank lines before
      if $1 =~ /(^\s*\n)+^(\s*\w+)/m then
        leading = $2 # ' *    ARGF' in the example above
        re = %r%
          \A(
             (^\s*\n)+
             (^#{Regexp.escape leading}.*?\n)+
            )+
          ^\s*$
        %xm

if @text[seq_stop..-1] =~ re then
          all_stop = seq_stop + $~.offset(0).last
          seq_stop = seq_stop + $~.offset(1).last
        end
      end

seq = @text[seq_start..seq_stop]
      seq.gsub!(/^\s*(\S|\n)/m, '\1')
      @text.slice! all_start...all_stop

method.call_seq = seq.chomp

elsif @text.sub!(/^\s*:?call-seq:(.*?)(^\s*$|\z)/m, '') then
      seq = $1
      seq.gsub!(/^\s*/, '')
      method.call_seq = seq
    end

method
  end

##
  # A comment is empty if its text String is empty.

def empty?
    @text.empty?
  end

##
  # HACK dubious

def force_encoding encoding
    @text.force_encoding encoding
  end

##
  # Sets the format of this comment and resets any parsed document

def format= format
    @format = format
    @document = nil
  end

def inspect # :nodoc:
    location = @location ? @location.relative_name : '(unknown)'

"#<%s:%x %s %p>" % [self.class, object_id, location, @text]
  end

##
  # Normalizes the text.  See RDoc::Text#normalize_comment for details

def normalize
    return self unless @text
    return self if @normalized # TODO eliminate duplicate normalization

@text = normalize_comment @text

@normalized = true

self
  end

##
  # Was this text normalized?

def normalized? # :nodoc:
    @normalized
  end

##
  # Parses the comment into an RDoc::Markup::Document.  The parsed document is
  # cached until the text is changed.

def parse
    return @document if @document

@document = super @text, @format
    @document.file = @location
    @document
  end

##
  # Removes private sections from this comment.  Private sections are flush to
  # the comment marker and start with <tt>--</tt> and end with <tt>++</tt>.
  # For C-style comments, a private marker may not start at the opening of the
  # comment.
  #
  #   /*
  #    *--
  #    * private
  #    *++
  #    * public
  #    */

def remove_private
    # Workaround for gsub encoding for Ruby 1.9.2 and earlier
    empty = ''
    empty.force_encoding @text.encoding

@text = @text.gsub(%r%^\s*([#*]?)--.*?^\s*(\1)\+\+\n?%m, empty)
    @text = @text.sub(%r%^\s*[#*]?--.*%m, '')
  end

##
  # Replaces this comment's text with +text+ and resets the parsed document.
  #
  # An error is raised if the comment contains a document but no text.

def text= text
    raise RDoc::Error, 'replacing document-only comment is not allowed' if
      @text.nil? and @document

@document = nil
    @text = text
  end

##
  # Returns true if this comment is in TomDoc format.

def tomdoc?
    @format == 'tomdoc'
  end

end

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