Class: Puppet::Pops::Parser::EppParser

Inherits:
Parser
  • Object
show all
Defined in:
lib/puppet/pops/parser/epp_parser.rb

Overview

The EppParser is a specialized Puppet Parser that starts parsing in Epp Text mode

Constant Summary

Constants inherited from Parser

Parser::Factory, Parser::Racc_arg, Parser::Racc_debug_parser, Parser::Racc_token_to_s_table

Instance Attribute Summary

Attributes inherited from Parser

#definitions, #lexer

Instance Method Summary collapse

Methods inherited from Parser

#_reduce_none, #add_definition, #add_mapping, #aryfy, #classname, #create_empty_program, #create_program, #error, #heredoc_loc, #initialize, #loc, #namepop, #namespace, #namestack, #on_error, #parse_string, #token_text, #transform_calls, #transform_resource_wo_title

Constructor Details

This class inherits a constructor from Puppet::Pops::Parser::Parser

Instance Method Details

#_parseObject

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Performs the parsing and returns the resulting model. The lexer holds state, and this is setup with Parser#parse_string, or #parse_file.

TODO: deal with options containing origin (i.e. parsing a string from externally known location). TODO: should return the model, not a Hostclass


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# File 'lib/puppet/pops/parser/epp_parser.rb', line 31

def _parse()
  begin
    @yydebug = false
    main = yyparse(@lexer,:scan_epp)
    # #Commented out now because this hides problems in the racc grammar while developing
    # # TODO include this when test coverage is good enough.
    #      rescue Puppet::ParseError => except
    #        except.line ||= @lexer.line
    #        except.file ||= @lexer.file
    #        except.pos  ||= @lexer.pos
    #        raise except
    #      rescue => except
    #        raise Puppet::ParseError.new(except.message, @lexer.file, @lexer.line, @lexer.pos, except)
  end
  return main
ensure
  @lexer.clear
  @namestack = []
  @definitions = []
end

#initvarsvoid

This method returns an undefined value.

Initializes the epp parser support by creating a new instance of Lexer configured to start in Epp Lexing mode.


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# File 'lib/puppet/pops/parser/epp_parser.rb', line 8

def initvars
  self.lexer = Puppet::Pops::Parser::Lexer2.new()
end

#parse_file(file) ⇒ Object

Parses a file expected to contain epp text/DSL logic.


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# File 'lib/puppet/pops/parser/epp_parser.rb', line 13

def parse_file(file)
  unless FileTest.exist?(file)
    unless file =~ /\.epp$/
      file = file + ".epp"
    end
  end
  @lexer.file = file
  _parse()
end