class RDoc::ERBIO - Documentation for Ruby 3.4
Description: class RDoc::ERBIO: A subclass of ERB that writes directly to an IO. Credit to Aaron Patterson and Masatoshi SEKI.
Keywords: ruby,class,RDoc::ERBIO

# class RDoc::ERBIO

A subclass of `ERB` that writes directly to an `IO`. Credit to Aaron Patterson and Masatoshi SEKI.

To use:

    erbio = RDoc::ERBIO.new '<%= "hello world" %>', nil, nil

    File.open 'hello.txt', 'w' do |io|
      erbio.result binding
    end

Note that binding must enclose the io you wish to output on.

### Public Class Methods

new (str, trim_mode: nil, eoutvar: 'io')
Source

    # File lib/rdoc/erbio.rb, line 23
    def initialize(str, trim_mode: nil, eoutvar: 'io')
      super(str, trim_mode: trim_mode, eoutvar: eoutvar)
    end

Defaults `eoutvar` to ‘io’, otherwise is identical to ERB’s initialize

Calls superclass method `ERB::new`

### Public Instance Methods

set_eoutvar (compiler, io_variable)
Source

    # File lib/rdoc/erbio.rb, line 30
    def set_eoutvar(compiler, io_variable)
      compiler.put_cmd    = "#{io_variable}.write"
      compiler.insert_cmd = "#{io_variable}.write"
      compiler.pre_cmd    = []
      compiler.post_cmd   = []
    end

Instructs `compiler` how to write to `io_variable`