Class: Brigit::ConfigParser

Inherits:
Object
  • Object
show all
Defined in:
lib/brigit/config_parser.rb

Overview

Reworked from Sam Ruby’s Ruby “PythonConfigParser,” intertwingly.net/code/mars/planet/config.rb which in turn is a port of Python’s ConfigParser, docs.python.org/lib/module-ConfigParser.html

Defined Under Namespace

Classes: Section

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.option_pattern ⇒ Object 



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# File 'lib/brigit/config_parser.rb', line 32

def self.option_pattern
  @option_pattern ||= /
    ([^:=\s][^:=]*)       # very permissive!
    \s*[:=]\s*            # any number of space chars,
                          # followed by separator
                          # (either : or =), followed
                          # by any # space chars
    (.*)$                 # everything up to eol
  /x
end

.section_pattern ⇒ Object 



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# File 'lib/brigit/config_parser.rb', line 24

def self.section_pattern
  @section_pattern ||= /
    \[                    # [
    ([^\]]+)              # very permissive!
    \]                    # ]
  /x
end

Instance Method Details

#parse(lines) ⇒ Object

FIXME: This is way ugly



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# File 'lib/brigit/config_parser.rb', line 45

def parse(lines)
  sections = Hash.new { |_, name| Section.new(name) }
  section = nil
  option = nil
  lines.each_with_index do |line, number|
    next if skip? line
    if line =~ self.class.option_pattern
      # option line
      option, value = $1, $2
      option = option.downcase.strip
      value.sub!(/\s;.*/, '')
      value = '' if value == '""'
      section[option] = clean value
    elsif line =~ /^\s/ && section && option
      # continuation line
      value = line.strip
      section[option] = section[option] ? (section[option] << "\n#{clean value}") : clean(value)
    elsif line =~ self.class.section_pattern
      section = sections[$1]
      sections[$1] = section
      option = nil
    elsif !section
      raise SyntaxError, 'Missing section header'
    else
      raise SyntaxError, "Invalid syntax on line #{number}"
    end
  end
  sections
end