Class: GetText::RubyParser::POExtractor

Inherits:
Ripper::Filter
  • Object
show all
Defined in:
lib/gettext/tools/parser/ruby.rb

Constant Summary collapse

ID = 
["gettext", "_", "N_", "sgettext", "s_"]
PLURAL_ID = 
["ngettext", "n_", "Nn_", "ns_", "nsgettext"]
MSGCTXT_ID = 
["pgettext", "p_"]
MSGCTXT_PLURAL_ID = 
["npgettext", "np_"]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ POExtractor

Returns a new instance of POExtractor.



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# File 'lib/gettext/tools/parser/ruby.rb', line 29

def initialize(*args)
  super(*args)
  @in_block_arguments = false
  @ignore_next_comma = false
  @context_stack = []
  @need_definition_name = false
  @current_po_entry = nil
  @current_po_entry_nth_attribute = 0
  @use_comment = false
  @comment_tag = nil
  @last_comment = ""
  @reset_comment = false
  @embed_expression_level = 0
  @string_mark_stack = []
  @string_stack = []
end

Instance Attribute Details

#comment_tag ⇒ Object

Returns the value of attribute comment_tag.



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# File 'lib/gettext/tools/parser/ruby.rb', line 28

def comment_tag
  @comment_tag
end

#use_comment ⇒ Object

Returns the value of attribute use_comment.



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# File 'lib/gettext/tools/parser/ruby.rb', line 27

def use_comment
  @use_comment
end

Instance Method Details

#on_default(event, token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 242

def on_default(event, token, po)
  trace(event, token) do
    process_method = "process_#{event}"
    if respond_to?(process_method)
      __send__(process_method, token, po)
    else
      po
    end
  end
end

#process_on_comma(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 223

def process_on_comma(token, po)
  unless @ignore_next_comma
    if @current_po_entry
      @current_po_entry_nth_attribute += 1
    end
  end
  po
end

#process_on_comment(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 109

def process_on_comment(token, po)
  @last_comment = "" if @reset_comment
  @reset_comment = false
  if @last_comment.empty?
    content = token.gsub(/\A#\s*/, "").chomp
    if comment_to_be_extracted?(content)
      @last_comment << content
    end
  else
    content = token.gsub(/\A#/, "").chomp
    @last_comment << "\n"
    @last_comment << content
  end
  po
end

#process_on_const(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 99

def process_on_const(token, po)
  case token
  when "N_"," Nn_"
    # TODO: Check the next token is :on_lparen
    process_on_ident(token, po)
  else
    po
  end
end

#process_on_embexpr_beg(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 200

def process_on_embexpr_beg(token, po)
  @embed_expression_level += 1
  @string_stack.last << token
  po
end

#process_on_embexpr_end(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 206

def process_on_embexpr_end(token, po)
  @embed_expression_level -= 1
  @string_stack.last << token
  po
end

#process_on_heredoc_beg(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 180

def process_on_heredoc_beg(token, po)
  if token.end_with?("'")
    @string_mark_stack << "'"
  else
    @string_mark_stack << "\""
  end
  @string_stack << ""
  po
end

#process_on_heredoc_end(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 190

def process_on_heredoc_end(token, po)
  process_on_tstring_end(token, po)
end

#process_on_ident(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 69

def process_on_ident(token, po)
  if @embed_expression_level > 0
    @string_stack.last << token
    return po
  end

  store_po_entry(po)

  return po if @in_block_arguments
  return po if state.allbits?(Ripper::EXPR_ENDFN)

  case token
  when *ID
    @current_po_entry = POEntry.new(:normal)
  when *PLURAL_ID
    @current_po_entry = POEntry.new(:plural)
  when *MSGCTXT_ID
    @current_po_entry = POEntry.new(:msgctxt)
  when *MSGCTXT_PLURAL_ID
    @current_po_entry = POEntry.new(:msgctxt_plural)
  end
  if @current_po_entry
    @current_po_entry.add_comment(@last_comment) unless @last_comment.empty?
    @last_comment = ""
    @current_po_entry.references << "#{filename}:#{lineno}"
    @current_po_entry_nth_attribute = 0
  end
  po
end

#process_on_int(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 218

def process_on_int(token, po)
  @ignore_next_comma = true
  po
end

#process_on_kw(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 51

def process_on_kw(token, po)
  store_po_entry(po)
  case token
  when "begin", "case", "do", "for"
    @context_stack.push(token)
  when "class", "def", "module"
    @context_stack.push(token)
  when "if", "unless", "until", "while"
    # postfix case
    unless state.allbits?(Ripper::EXPR_LABEL)
      @context_stack.push(token)
    end
  when "end"
    @context_stack.pop
  end
  po
end

#process_on_nl(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 237

def process_on_nl(token, po)
  @reset_comment = true
  po
end

#process_on_op(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 46

def process_on_op(token, po)
  @in_block_arguments = !@in_block_arguments if token == "|"
  po
end

#process_on_regexp_beg(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 194

def process_on_regexp_beg(token, po)
  @string_mark_stack << "\""
  @string_stack << ""
  po
end

#process_on_regexp_end(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 212

def process_on_regexp_end(token, po)
  @string_mark_stack.pop
  @string_stack.pop
  po
end

#process_on_rparen(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 232

def process_on_rparen(token, po)
  store_po_entry(po)
  po
end

#process_on_sp(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 125

def process_on_sp(token, po)
  po
end

#process_on_tstring_beg(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 129

def process_on_tstring_beg(token, po)
  @string_mark_stack << token
  @string_stack << ""
  po
end

#process_on_tstring_content(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 135

def process_on_tstring_content(token, po)
  if @string_mark_stack.last == "\""
    @string_stack.last << token.gsub(/\\./) do |data|
      case data
      when "\\n"
        "\n"
      when "\\t"
        "\t"
      when "\\\\"
        "\\"
      when "\\\""
        "\""
      when "\\\#"
        "#"
      else
        data
      end
    end
  else
    @string_stack.last << token.gsub(/\\./) do |data|
      case data
      when "\\\\"
        "\\"
      when "\\'"
        "'"
      else
        data
      end
    end
  end
  po
end

#process_on_tstring_end(token, po) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 168

def process_on_tstring_end(token, po)
  @ignore_next_comma = false
  @string_mark_stack.pop
  last_string = @string_stack.pop
  if @current_po_entry and last_string
    @current_po_entry[@current_po_entry_nth_attribute] =
      (@current_po_entry[@current_po_entry_nth_attribute] || "") +
      last_string
  end
  po
end