Class: Lazibi::Filter::SyntaxGuard

Inherits:
FilterBase show all
Defined in:
lib/filter/syntax_guard_filter.rb

Instance Method Summary collapse

Methods inherited from FilterBase

#down

Methods included from Helper::FilterHelper

#begin_keys, #clean_block, #clean_line, #comment_at_end, #end_anchor?, #end_keys, #get_indent, #get_rest, #group_match, #middle_anchor?, #middle_keys, #nasty_line?, #split_end, #start_anchor?

Instance Method Details

#here_doc?(line) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/filter/syntax_guard_filter.rb', line 16

def here_doc?( line )
  line =~ /(=\s*<<)|(<<-)/
end

#special_syntax(line) ⇒ Object 



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# File 'lib/filter/syntax_guard_filter.rb', line 20

def special_syntax( line )
  patterns = [
    /:\[\]=/,
    /\beval\b/,
    /javascript_cdata/
  ]
  for p in patterns
    return true if line =~ p
  end

  false
end

#up(source) ⇒ Object 



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# File 'lib/filter/syntax_guard_filter.rb', line 38

def up( source )
  source = split_end(source)
  commentBlock = false
  multiLineStr = ""
  source.split("\n").each do |line|
    # combine continuing lines
    if(!(clean_line(line, true) =~ /\s*#/) && line =~ /[^\\]\\\s*$/)
      multiLineStr += line.sub(/^(.*)\\\s*$/,"\\1")
      next
    end

    # add final line
    if(multiLineStr.length > 0)
      multiLineStr += line.sub(/^(.*)\\\s*$/,"\\1")
    end

    tline = ((multiLineStr.length > 0)?multiLineStr:line).strip
    if(tline =~ /^=begin/)
      commentBlock = true
    elsif !commentBlock
      commentLine = (tline =~ /^#/)
      if(!commentLine)
        valid_before = valid_before_clean?( tline )
        tline = clean_line(tline)
        unless ( valid?(tline) && valid_before )
          puts '- ' + tline
          return false
        end
        multiLineStr = ""
      end
    end
    if(tline =~ /^=end/)
      commentBlock = false
    end
  end
  return source
end

#using_eval?(line) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/filter/syntax_guard_filter.rb', line 12

def using_eval?( line )
  line =~ /\b(class|module|instance)_eval\b/
end

#valid?(line) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/filter/syntax_guard_filter.rb', line 7

def valid?( line )
  not_supported = using_eval?(line) || here_doc?(line) || special_syntax(line)
  return !not_supported
end

#valid_before_clean?(line) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/filter/syntax_guard_filter.rb', line 33

def valid_before_clean?( line )
  r = line =~ /#\{[^\{]*#\{.*\}.*\}/
  r.nil?
end