Module: Yamlr::Reader::Parser

Defined in:
lib/yamlr/reader/parser.rb

Defined Under Namespace

Classes: IndentError

Class Method Summary collapse

Class Method Details

.check_indent(line, spc, idt, num) ⇒ Object

invalid number of spaces, line num and truncated line for context

Raises:



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# File 'lib/yamlr/reader/parser.rb', line 15

def self.check_indent(line, spc, idt, num)
  raise IndentError, "#{num} #{line[1..50]}" if spc % idt != 0
end

.parse(line, opts, num) ⇒ Object 



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# File 'lib/yamlr/reader/parser.rb', line 6

def self.parse(line, opts, num)
  results = self.parse_line(line, opts)
  phs = self.results_to_hash(results, opts)
  self.check_indent(line, phs[:spc], opts[:indent], num)
  phs
end

.parse_line(line, opts) ⇒ Object

parses line, returns array, dependent on Node module



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# File 'lib/yamlr/reader/parser.rb', line 21

def self.parse_line(line, opts)
  nod = Yamlr::Reader::Node
  spc = opts[:space]
  hsh = opts[:hash]
  sym = opts[:symbol]
  dcs = opts[:doc_start]
  dct = opts[:doc_term]
  arr = opts[:array]
  com = opts[:comment]

  begin
    case line
    when nod.left_match(arr, spc) then            [:arr, Regexp.last_match.captures]
    when nod.left_match(com, spc) then            [:com, Regexp.last_match.captures]
    when nod.hashkey_sym(hsh, sym, spc) then      [:hky, Regexp.last_match.captures, nil, true]
    when nod.hashkey(hsh, spc) then               [:hky, Regexp.last_match.captures]
    when nod.hashpair_sym_all(hsh, sym, spc) then [:hpr, Regexp.last_match.captures, true, true]
    when nod.hashpair_sym_key(hsh, sym, spc) then [:hpr, Regexp.last_match.captures, true]
    when nod.hashpair_sym_val(hsh, sym, spc) then [:hpr, Regexp.last_match.captures, nil, true]
    when nod.hashpair(hsh, sym, spc) then         [:hpr, Regexp.last_match.captures]
    when /^\s*$/ then                             [:bla]
    when nod.document(dcs, spc) then              [:dcs]
    when nod.document(dct, spc) then              [:dct]
    else
      raise 'MALFORMED'
    end
  rescue => e
    # log or whatever
    [:mal, '', nil, line.strip]
  end
end

.results_to_hash(results, opt) ⇒ Object

creates hash with array vals, includes options



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# File 'lib/yamlr/reader/parser.rb', line 55

def self.results_to_hash(results, opt)
  #raise results.flatten.to_s + " results.class => #{results.class}"
  msg, spc, key, val, ask, asv = results.flatten
  { :msg => msg,
    :spc => (spc.nil? ? 0 : spc.length),
    :key => key.to_s.sub(/^:/, ''),
    :val => val.to_s.sub(/^:/, ''),
    :ask => ask,
    :asv => asv,
    :opt => opt}
end