Ruby latest stable (v2_5_5) - 0 notes

Module deprecated or moved

This module is deprecated or moved on the latest stable version. The last existing version (v1_8_7_330) is shown here.

A parser is simple a class that implements

#initialize(file_name, body, options)



The initialize method takes a file name to be used, the body of the file, and an RDoc::Options object. The scan method is then called to return an appropriately parsed TopLevel code object.

The ParseFactory is used to redirect to the correct parser given a filename extension. This magic works because individual parsers have to register themselves with us as they are loaded in. The do this using the following incantation

require "rdoc/parsers/parsefactory"

module RDoc

  class XyzParser
    extend ParseFactory                  <<<<
    parse_files_matching /\.xyz$/        <<<<

    def initialize(file_name, body, options)

    def scan

Just to make life interesting, if we suspect a plain text file, we also look for a shebang line just in case it’s a potential shell script


Parsers = Struct.new(:regexp, :parser)


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