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Update description used in take_corresponding_syntax_to_kw_do and is_the_in_correspond_to_a_for methods
Use possessive noun correctly
Second element
4fa9714d6f
833 lines
24 KiB
Ruby
833 lines
24 KiB
Ruby
# frozen_string_literal: false
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#
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# irb/ruby-lex.rb - ruby lexcal analyzer
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# $Release Version: 0.9.6$
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# $Revision$
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# by Keiju ISHITSUKA(keiju@ruby-lang.org)
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#
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# --
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#
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#
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#
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require "ripper"
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require "jruby" if RUBY_ENGINE == "jruby"
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# :stopdoc:
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class RubyLex
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class TerminateLineInput < StandardError
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def initialize
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super("Terminate Line Input")
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end
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end
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def initialize
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@exp_line_no = @line_no = 1
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@indent = 0
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@continue = false
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@line = ""
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@prompt = nil
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end
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def self.compile_with_errors_suppressed(code, line_no: 1)
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begin
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result = yield code, line_no
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rescue ArgumentError
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# Ruby can issue an error for the code if there is an
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# incomplete magic comment for encoding in it. Force an
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# expression with a new line before the code in this
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# case to prevent magic comment handling. To make sure
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# line numbers in the lexed code remain the same,
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# decrease the line number by one.
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code = ";\n#{code}"
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line_no -= 1
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result = yield code, line_no
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end
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result
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end
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# io functions
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def set_input(io, p = nil, context: nil, &block)
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@io = io
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if @io.respond_to?(:check_termination)
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@io.check_termination do |code|
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if Reline::IOGate.in_pasting?
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lex = RubyLex.new
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rest = lex.check_termination_in_prev_line(code, context: context)
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if rest
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Reline.delete_text
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rest.bytes.reverse_each do |c|
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Reline.ungetc(c)
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end
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true
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else
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false
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end
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else
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code.gsub!(/\s*\z/, '').concat("\n")
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ltype, indent, continue, code_block_open = check_state(code, context: context)
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if ltype or indent > 0 or continue or code_block_open
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false
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else
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true
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end
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end
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end
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end
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if @io.respond_to?(:dynamic_prompt)
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@io.dynamic_prompt do |lines|
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lines << '' if lines.empty?
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result = []
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tokens = self.class.ripper_lex_without_warning(lines.map{ |l| l + "\n" }.join, context: context)
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code = String.new
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partial_tokens = []
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unprocessed_tokens = []
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line_num_offset = 0
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tokens.each do |t|
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partial_tokens << t
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unprocessed_tokens << t
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if t[2].include?("\n")
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t_str = t[2]
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t_str.each_line("\n") do |s|
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code << s << "\n"
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ltype, indent, continue, code_block_open = check_state(code, partial_tokens, context: context)
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result << @prompt.call(ltype, indent, continue || code_block_open, @line_no + line_num_offset)
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line_num_offset += 1
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end
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unprocessed_tokens = []
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else
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code << t[2]
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end
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end
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unless unprocessed_tokens.empty?
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ltype, indent, continue, code_block_open = check_state(code, unprocessed_tokens, context: context)
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result << @prompt.call(ltype, indent, continue || code_block_open, @line_no + line_num_offset)
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end
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result
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end
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end
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if p.respond_to?(:call)
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@input = p
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elsif block_given?
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@input = block
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else
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@input = Proc.new{@io.gets}
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end
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end
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def set_prompt(p = nil, &block)
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p = block if block_given?
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if p.respond_to?(:call)
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@prompt = p
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else
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@prompt = Proc.new{print p}
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end
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end
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ERROR_TOKENS = [
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:on_parse_error,
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:compile_error,
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:on_assign_error,
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:on_alias_error,
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:on_class_name_error,
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:on_param_error
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]
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def self.ripper_lex_without_warning(code, context: nil)
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verbose, $VERBOSE = $VERBOSE, nil
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if context
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lvars = context&.workspace&.binding&.local_variables
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if lvars && !lvars.empty?
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code = "#{lvars.join('=')}=nil\n#{code}"
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line_no = 0
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else
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line_no = 1
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end
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end
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tokens = nil
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compile_with_errors_suppressed(code, line_no: line_no) do |inner_code, line_no|
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lexer = Ripper::Lexer.new(inner_code, '-', line_no)
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if lexer.respond_to?(:scan) # Ruby 2.7+
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tokens = []
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pos_to_index = {}
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lexer.scan.each do |t|
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next if t.pos.first == 0
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if pos_to_index.has_key?(t[0])
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index = pos_to_index[t[0]]
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found_tk = tokens[index]
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if ERROR_TOKENS.include?(found_tk[1]) && !ERROR_TOKENS.include?(t[1])
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tokens[index] = t
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end
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else
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pos_to_index[t[0]] = tokens.size
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tokens << t
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end
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end
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else
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tokens = lexer.parse
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end
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end
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tokens
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ensure
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$VERBOSE = verbose
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end
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def find_prev_spaces(line_index)
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return 0 if @tokens.size == 0
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md = @tokens[0][2].match(/(\A +)/)
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prev_spaces = md.nil? ? 0 : md[1].count(' ')
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line_count = 0
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@tokens.each_with_index do |t, i|
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if t[2].include?("\n")
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line_count += t[2].count("\n")
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if line_count >= line_index
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return prev_spaces
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end
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if (@tokens.size - 1) > i
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md = @tokens[i + 1][2].match(/(\A +)/)
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prev_spaces = md.nil? ? 0 : md[1].count(' ')
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end
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end
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end
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prev_spaces
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end
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def set_auto_indent(context)
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if @io.respond_to?(:auto_indent) and context.auto_indent_mode
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@io.auto_indent do |lines, line_index, byte_pointer, is_newline|
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if is_newline
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@tokens = self.class.ripper_lex_without_warning(lines[0..line_index].join("\n"), context: context)
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prev_spaces = find_prev_spaces(line_index)
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depth_difference = check_newline_depth_difference
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depth_difference = 0 if depth_difference < 0
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prev_spaces + depth_difference * 2
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else
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code = line_index.zero? ? '' : lines[0..(line_index - 1)].map{ |l| l + "\n" }.join
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last_line = lines[line_index]&.byteslice(0, byte_pointer)
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code += last_line if last_line
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@tokens = self.class.ripper_lex_without_warning(code, context: context)
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corresponding_token_depth = check_corresponding_token_depth(lines, line_index)
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if corresponding_token_depth
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corresponding_token_depth
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else
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nil
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end
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end
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end
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end
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end
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def check_state(code, tokens = nil, context: nil)
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tokens = self.class.ripper_lex_without_warning(code, context: context) unless tokens
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ltype = process_literal_type(tokens)
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indent = process_nesting_level(tokens)
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continue = process_continue(tokens)
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code_block_open = check_code_block(code, tokens)
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[ltype, indent, continue, code_block_open]
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end
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def prompt
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if @prompt
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@prompt.call(@ltype, @indent, @continue, @line_no)
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end
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end
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def initialize_input
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@ltype = nil
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@indent = 0
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@continue = false
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@line = ""
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@exp_line_no = @line_no
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@code_block_open = false
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end
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def each_top_level_statement
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initialize_input
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catch(:TERM_INPUT) do
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loop do
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begin
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prompt
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unless l = lex
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throw :TERM_INPUT if @line == ''
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else
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@line_no += l.count("\n")
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if l == "\n"
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@exp_line_no += 1
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next
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end
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@line.concat l
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if @code_block_open or @ltype or @continue or @indent > 0
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next
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end
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end
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if @line != "\n"
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@line.force_encoding(@io.encoding)
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yield @line, @exp_line_no
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end
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raise TerminateLineInput if @io.eof?
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@line = ''
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@exp_line_no = @line_no
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@indent = 0
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rescue TerminateLineInput
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initialize_input
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prompt
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end
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end
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end
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end
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def lex
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line = @input.call
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if @io.respond_to?(:check_termination)
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return line # multiline
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end
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code = @line + (line.nil? ? '' : line)
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code.gsub!(/\s*\z/, '').concat("\n")
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@tokens = self.class.ripper_lex_without_warning(code)
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@continue = process_continue
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@code_block_open = check_code_block(code)
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@indent = process_nesting_level
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@ltype = process_literal_type
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line
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end
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def process_continue(tokens = @tokens)
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# last token is always newline
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if tokens.size >= 2 and tokens[-2][1] == :on_regexp_end
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# end of regexp literal
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return false
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elsif tokens.size >= 2 and tokens[-2][1] == :on_semicolon
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return false
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elsif tokens.size >= 2 and tokens[-2][1] == :on_kw and ['begin', 'else', 'ensure'].include?(tokens[-2][2])
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return false
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elsif !tokens.empty? and tokens.last[2] == "\\\n"
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return true
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elsif tokens.size >= 1 and tokens[-1][1] == :on_heredoc_end # "EOH\n"
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return false
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elsif tokens.size >= 2 and defined?(Ripper::EXPR_BEG) and tokens[-2][3].anybits?(Ripper::EXPR_BEG | Ripper::EXPR_FNAME) and tokens[-2][2] !~ /\A\.\.\.?\z/
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# end of literal except for regexp
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# endless range at end of line is not a continue
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return true
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end
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false
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end
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def check_code_block(code, tokens = @tokens)
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return true if tokens.empty?
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if tokens.last[1] == :on_heredoc_beg
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return true
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end
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begin # check if parser error are available
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verbose, $VERBOSE = $VERBOSE, nil
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case RUBY_ENGINE
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when 'ruby'
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self.class.compile_with_errors_suppressed(code) do |inner_code, line_no|
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RubyVM::InstructionSequence.compile(inner_code, nil, nil, line_no)
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end
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when 'jruby'
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JRuby.compile_ir(code)
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else
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catch(:valid) do
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eval("BEGIN { throw :valid, true }\n#{code}")
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false
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end
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end
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rescue EncodingError
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# This is for a hash with invalid encoding symbol, {"\xAE": 1}
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rescue SyntaxError => e
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case e.message
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when /unterminated (?:string|regexp) meets end of file/
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# "unterminated regexp meets end of file"
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#
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# example:
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# /
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#
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# "unterminated string meets end of file"
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#
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# example:
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# '
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return true
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when /syntax error, unexpected end-of-input/
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# "syntax error, unexpected end-of-input, expecting keyword_end"
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#
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# example:
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# if true
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# hoge
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# if false
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# fuga
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# end
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return true
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when /syntax error, unexpected keyword_end/
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# "syntax error, unexpected keyword_end"
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#
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# example:
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# if (
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# end
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#
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# example:
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# end
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return false
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when /syntax error, unexpected '\.'/
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# "syntax error, unexpected '.'"
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#
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# example:
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# .
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return false
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when /unexpected tREGEXP_BEG/
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# "syntax error, unexpected tREGEXP_BEG, expecting keyword_do or '{' or '('"
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#
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# example:
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# method / f /
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return false
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end
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ensure
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$VERBOSE = verbose
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end
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if defined?(Ripper::EXPR_BEG)
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last_lex_state = tokens.last[3]
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if last_lex_state.allbits?(Ripper::EXPR_BEG)
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return false
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elsif last_lex_state.allbits?(Ripper::EXPR_DOT)
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return true
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elsif last_lex_state.allbits?(Ripper::EXPR_CLASS)
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return true
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elsif last_lex_state.allbits?(Ripper::EXPR_FNAME)
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return true
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elsif last_lex_state.allbits?(Ripper::EXPR_VALUE)
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return true
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elsif last_lex_state.allbits?(Ripper::EXPR_ARG)
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return false
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end
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end
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false
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end
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def process_nesting_level(tokens = @tokens)
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indent = 0
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in_oneliner_def = nil
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tokens.each_with_index { |t, index|
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# detecting one-liner method definition
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if in_oneliner_def.nil?
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if t[3].allbits?(Ripper::EXPR_ENDFN)
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in_oneliner_def = :ENDFN
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end
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else
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if t[3].allbits?(Ripper::EXPR_ENDFN)
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# continuing
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elsif t[3].allbits?(Ripper::EXPR_BEG)
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if t[2] == '='
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in_oneliner_def = :BODY
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end
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else
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if in_oneliner_def == :BODY
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# one-liner method definition
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indent -= 1
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end
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in_oneliner_def = nil
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end
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end
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case t[1]
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when :on_lbracket, :on_lbrace, :on_lparen, :on_tlambeg
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indent += 1
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when :on_rbracket, :on_rbrace, :on_rparen
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indent -= 1
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when :on_kw
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next if index > 0 and tokens[index - 1][3].allbits?(Ripper::EXPR_FNAME)
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case t[2]
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when 'do'
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syntax_of_do = take_corresponding_syntax_to_kw_do(tokens, index)
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indent += 1 if syntax_of_do == :method_calling
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when 'def', 'case', 'for', 'begin', 'class', 'module'
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indent += 1
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when 'if', 'unless', 'while', 'until'
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# postfix if/unless/while/until must be Ripper::EXPR_LABEL
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indent += 1 unless t[3].allbits?(Ripper::EXPR_LABEL)
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when 'end'
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indent -= 1
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end
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end
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# percent literals are not indented
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}
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indent
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end
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def is_method_calling?(tokens, index)
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tk = tokens[index]
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if tk[3].anybits?(Ripper::EXPR_CMDARG) and tk[1] == :on_ident
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# The target method call to pass the block with "do".
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return true
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elsif tk[3].anybits?(Ripper::EXPR_ARG) and tk[1] == :on_ident
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non_sp_index = tokens[0..(index - 1)].rindex{ |t| t[1] != :on_sp }
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if non_sp_index
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prev_tk = tokens[non_sp_index]
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if prev_tk[3].anybits?(Ripper::EXPR_DOT) and prev_tk[1] == :on_period
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# The target method call with receiver to pass the block with "do".
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return true
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end
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end
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end
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false
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end
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def take_corresponding_syntax_to_kw_do(tokens, index)
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syntax_of_do = nil
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# Finding a syntax corresponding to "do".
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index.downto(0) do |i|
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tk = tokens[i]
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# In "continue", the token isn't the corresponding syntax to "do".
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non_sp_index = tokens[0..(i - 1)].rindex{ |t| t[1] != :on_sp }
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first_in_fomula = false
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if non_sp_index.nil?
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first_in_fomula = true
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elsif [:on_ignored_nl, :on_nl, :on_comment].include?(tokens[non_sp_index][1])
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first_in_fomula = true
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end
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if is_method_calling?(tokens, i)
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syntax_of_do = :method_calling
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break if first_in_fomula
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elsif tk[1] == :on_kw && %w{while until for}.include?(tk[2])
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# A loop syntax in front of "do" found.
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#
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# while cond do # also "until" or "for"
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# end
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#
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# This "do" doesn't increment indent because the loop syntax already
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# incremented.
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syntax_of_do = :loop_syntax
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break if first_in_fomula
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end
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end
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syntax_of_do
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end
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def is_the_in_correspond_to_a_for(tokens, index)
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syntax_of_in = nil
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# Finding a syntax corresponding to "do".
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index.downto(0) do |i|
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tk = tokens[i]
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# In "continue", the token isn't the corresponding syntax to "do".
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non_sp_index = tokens[0..(i - 1)].rindex{ |t| t[1] != :on_sp }
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first_in_fomula = false
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if non_sp_index.nil?
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first_in_fomula = true
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elsif [:on_ignored_nl, :on_nl, :on_comment].include?(tokens[non_sp_index][1])
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first_in_fomula = true
|
|
end
|
|
if tk[1] == :on_kw && tk[2] == 'for'
|
|
# A loop syntax in front of "do" found.
|
|
#
|
|
# while cond do # also "until" or "for"
|
|
# end
|
|
#
|
|
# This "do" doesn't increment indent because the loop syntax already
|
|
# incremented.
|
|
syntax_of_in = :for
|
|
end
|
|
break if first_in_fomula
|
|
end
|
|
syntax_of_in
|
|
end
|
|
|
|
def check_newline_depth_difference
|
|
depth_difference = 0
|
|
open_brace_on_line = 0
|
|
in_oneliner_def = nil
|
|
@tokens.each_with_index do |t, index|
|
|
# detecting one-liner method definition
|
|
if in_oneliner_def.nil?
|
|
if t[3].allbits?(Ripper::EXPR_ENDFN)
|
|
in_oneliner_def = :ENDFN
|
|
end
|
|
else
|
|
if t[3].allbits?(Ripper::EXPR_ENDFN)
|
|
# continuing
|
|
elsif t[3].allbits?(Ripper::EXPR_BEG)
|
|
if t[2] == '='
|
|
in_oneliner_def = :BODY
|
|
end
|
|
else
|
|
if in_oneliner_def == :BODY
|
|
# one-liner method definition
|
|
depth_difference -= 1
|
|
end
|
|
in_oneliner_def = nil
|
|
end
|
|
end
|
|
|
|
case t[1]
|
|
when :on_ignored_nl, :on_nl, :on_comment
|
|
if index != (@tokens.size - 1) and in_oneliner_def != :BODY
|
|
depth_difference = 0
|
|
open_brace_on_line = 0
|
|
end
|
|
next
|
|
when :on_sp
|
|
next
|
|
end
|
|
case t[1]
|
|
when :on_lbracket, :on_lbrace, :on_lparen, :on_tlambeg
|
|
depth_difference += 1
|
|
open_brace_on_line += 1
|
|
when :on_rbracket, :on_rbrace, :on_rparen
|
|
depth_difference -= 1 if open_brace_on_line > 0
|
|
when :on_kw
|
|
next if index > 0 and @tokens[index - 1][3].allbits?(Ripper::EXPR_FNAME)
|
|
case t[2]
|
|
when 'do'
|
|
syntax_of_do = take_corresponding_syntax_to_kw_do(@tokens, index)
|
|
depth_difference += 1 if syntax_of_do == :method_calling
|
|
when 'def', 'case', 'for', 'begin', 'class', 'module'
|
|
depth_difference += 1
|
|
when 'if', 'unless', 'while', 'until', 'rescue'
|
|
# postfix if/unless/while/until/rescue must be Ripper::EXPR_LABEL
|
|
unless t[3].allbits?(Ripper::EXPR_LABEL)
|
|
depth_difference += 1
|
|
end
|
|
when 'else', 'elsif', 'ensure', 'when'
|
|
depth_difference += 1
|
|
when 'in'
|
|
unless is_the_in_correspond_to_a_for(@tokens, index)
|
|
depth_difference += 1
|
|
end
|
|
when 'end'
|
|
depth_difference -= 1
|
|
end
|
|
end
|
|
end
|
|
depth_difference
|
|
end
|
|
|
|
def check_corresponding_token_depth(lines, line_index)
|
|
corresponding_token_depth = nil
|
|
is_first_spaces_of_line = true
|
|
is_first_printable_of_line = true
|
|
spaces_of_nest = []
|
|
spaces_at_line_head = 0
|
|
open_brace_on_line = 0
|
|
in_oneliner_def = nil
|
|
|
|
if heredoc_scope?
|
|
return lines[line_index][/^ */].length
|
|
end
|
|
|
|
@tokens.each_with_index do |t, index|
|
|
# detecting one-liner method definition
|
|
if in_oneliner_def.nil?
|
|
if t[3].allbits?(Ripper::EXPR_ENDFN)
|
|
in_oneliner_def = :ENDFN
|
|
end
|
|
else
|
|
if t[3].allbits?(Ripper::EXPR_ENDFN)
|
|
# continuing
|
|
elsif t[3].allbits?(Ripper::EXPR_BEG)
|
|
if t[2] == '='
|
|
in_oneliner_def = :BODY
|
|
end
|
|
else
|
|
if in_oneliner_def == :BODY
|
|
# one-liner method definition
|
|
if is_first_printable_of_line
|
|
corresponding_token_depth = spaces_of_nest.pop
|
|
else
|
|
spaces_of_nest.pop
|
|
corresponding_token_depth = nil
|
|
end
|
|
end
|
|
in_oneliner_def = nil
|
|
end
|
|
end
|
|
|
|
case t[1]
|
|
when :on_ignored_nl, :on_nl, :on_comment
|
|
if in_oneliner_def != :BODY
|
|
corresponding_token_depth = nil
|
|
spaces_at_line_head = 0
|
|
is_first_spaces_of_line = true
|
|
is_first_printable_of_line = true
|
|
open_brace_on_line = 0
|
|
end
|
|
next
|
|
when :on_sp
|
|
spaces_at_line_head = t[2].count(' ') if is_first_spaces_of_line
|
|
is_first_spaces_of_line = false
|
|
next
|
|
end
|
|
case t[1]
|
|
when :on_lbracket, :on_lbrace, :on_lparen, :on_tlambeg
|
|
spaces_of_nest.push(spaces_at_line_head + open_brace_on_line * 2)
|
|
open_brace_on_line += 1
|
|
when :on_rbracket, :on_rbrace, :on_rparen
|
|
if is_first_printable_of_line
|
|
corresponding_token_depth = spaces_of_nest.pop
|
|
else
|
|
spaces_of_nest.pop
|
|
corresponding_token_depth = nil
|
|
end
|
|
open_brace_on_line -= 1
|
|
when :on_kw
|
|
next if index > 0 and @tokens[index - 1][3].allbits?(Ripper::EXPR_FNAME)
|
|
case t[2]
|
|
when 'do'
|
|
syntax_of_do = take_corresponding_syntax_to_kw_do(@tokens, index)
|
|
if syntax_of_do == :method_calling
|
|
spaces_of_nest.push(spaces_at_line_head)
|
|
end
|
|
when 'def', 'case', 'for', 'begin', 'class', 'module'
|
|
spaces_of_nest.push(spaces_at_line_head)
|
|
when 'rescue'
|
|
unless t[3].allbits?(Ripper::EXPR_LABEL)
|
|
corresponding_token_depth = spaces_of_nest.last
|
|
end
|
|
when 'if', 'unless', 'while', 'until'
|
|
# postfix if/unless/while/until must be Ripper::EXPR_LABEL
|
|
unless t[3].allbits?(Ripper::EXPR_LABEL)
|
|
spaces_of_nest.push(spaces_at_line_head)
|
|
end
|
|
when 'else', 'elsif', 'ensure', 'when', 'in'
|
|
corresponding_token_depth = spaces_of_nest.last
|
|
when 'end'
|
|
if is_first_printable_of_line
|
|
corresponding_token_depth = spaces_of_nest.pop
|
|
else
|
|
spaces_of_nest.pop
|
|
corresponding_token_depth = nil
|
|
end
|
|
end
|
|
end
|
|
is_first_spaces_of_line = false
|
|
is_first_printable_of_line = false
|
|
end
|
|
corresponding_token_depth
|
|
end
|
|
|
|
def check_string_literal(tokens)
|
|
i = 0
|
|
start_token = []
|
|
end_type = []
|
|
while i < tokens.size
|
|
t = tokens[i]
|
|
case t[1]
|
|
when *end_type.last
|
|
start_token.pop
|
|
end_type.pop
|
|
when :on_tstring_beg
|
|
start_token << t
|
|
end_type << [:on_tstring_end, :on_label_end]
|
|
when :on_regexp_beg
|
|
start_token << t
|
|
end_type << :on_regexp_end
|
|
when :on_symbeg
|
|
acceptable_single_tokens = %i{on_ident on_const on_op on_cvar on_ivar on_gvar on_kw on_int on_backtick}
|
|
if (i + 1) < tokens.size
|
|
if acceptable_single_tokens.all?{ |st| tokens[i + 1][1] != st }
|
|
start_token << t
|
|
end_type << :on_tstring_end
|
|
else
|
|
i += 1
|
|
end
|
|
end
|
|
when :on_backtick
|
|
start_token << t
|
|
end_type << :on_tstring_end
|
|
when :on_qwords_beg, :on_words_beg, :on_qsymbols_beg, :on_symbols_beg
|
|
start_token << t
|
|
end_type << :on_tstring_end
|
|
when :on_heredoc_beg
|
|
start_token << t
|
|
end_type << :on_heredoc_end
|
|
end
|
|
i += 1
|
|
end
|
|
start_token.last.nil? ? '' : start_token.last
|
|
end
|
|
|
|
def process_literal_type(tokens = @tokens)
|
|
start_token = check_string_literal(tokens)
|
|
case start_token[1]
|
|
when :on_tstring_beg
|
|
case start_token[2]
|
|
when ?" then ?"
|
|
when /^%.$/ then ?"
|
|
when /^%Q.$/ then ?"
|
|
when ?' then ?'
|
|
when /^%q.$/ then ?'
|
|
end
|
|
when :on_regexp_beg then ?/
|
|
when :on_symbeg then ?:
|
|
when :on_backtick then ?`
|
|
when :on_qwords_beg then ?]
|
|
when :on_words_beg then ?]
|
|
when :on_qsymbols_beg then ?]
|
|
when :on_symbols_beg then ?]
|
|
when :on_heredoc_beg
|
|
start_token[2] =~ /<<[-~]?(['"`])[_a-zA-Z0-9]+\1/
|
|
case $1
|
|
when ?" then ?"
|
|
when ?' then ?'
|
|
when ?` then ?`
|
|
else ?"
|
|
end
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
|
|
def check_termination_in_prev_line(code, context: nil)
|
|
tokens = self.class.ripper_lex_without_warning(code, context: context)
|
|
past_first_newline = false
|
|
index = tokens.rindex do |t|
|
|
# traverse first token before last line
|
|
if past_first_newline
|
|
if t.tok.include?("\n")
|
|
true
|
|
end
|
|
elsif t.tok.include?("\n")
|
|
past_first_newline = true
|
|
false
|
|
else
|
|
false
|
|
end
|
|
end
|
|
if index
|
|
first_token = nil
|
|
last_line_tokens = tokens[(index + 1)..(tokens.size - 1)]
|
|
last_line_tokens.each do |t|
|
|
unless [:on_sp, :on_ignored_sp, :on_comment].include?(t.event)
|
|
first_token = t
|
|
break
|
|
end
|
|
end
|
|
if first_token.nil?
|
|
return false
|
|
elsif first_token && first_token.state == Ripper::EXPR_DOT
|
|
return false
|
|
else
|
|
tokens_without_last_line = tokens[0..index]
|
|
ltype = process_literal_type(tokens_without_last_line)
|
|
indent = process_nesting_level(tokens_without_last_line)
|
|
continue = process_continue(tokens_without_last_line)
|
|
code_block_open = check_code_block(tokens_without_last_line.map(&:tok).join(''), tokens_without_last_line)
|
|
if ltype or indent > 0 or continue or code_block_open
|
|
return false
|
|
else
|
|
return last_line_tokens.map(&:tok).join('')
|
|
end
|
|
end
|
|
end
|
|
false
|
|
end
|
|
|
|
private
|
|
|
|
def heredoc_scope?
|
|
heredoc_tokens = @tokens.select { |t| [:on_heredoc_beg, :on_heredoc_end].include?(t.event) }
|
|
heredoc_tokens[-1]&.event == :on_heredoc_beg
|
|
end
|
|
end
|
|
# :startdoc:
|