Class: Firebug::StringIOReader

Inherits:
StringIO
  • Object
show all
Defined in:
lib/firebug/string_io_reader.rb

Overview

Class for reading a string

Instance Method Summary collapse

Instance Method Details

#read_until(char, include: true) ⇒ String?

Reads data from the buffer until char is found.

Parameters:

  • char (String) —

    The character to look for.

  • include (Boolean) (defaults to: true) —

    If char should be included in the result.

Returns:

  • (String, nil) 


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# File 'lib/firebug/string_io_reader.rb', line 11

def read_until(char, include: true)
  # because UTF-8 is a variable-length encoding and +String#index+ returns the character index, not the byte index,
  # we use +String#b+ to convert the string to ASCII-8BIT. This forces Ruby to treat each byte as a single
  # character. This is needed because we have to know how many bytes from +pos+ the +char+ is.
  if (idx = string.b.index(char, pos)) # rubocop:disable Style/GuardClause
    read(idx - pos + (include ? 1 : 0))
  end
end