Class: Bocadillo::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/bocadillo/parser.rb

Class Method Summary collapse

Class Method Details

.parse(str, preamble, divider, terminator) ⇒ Object 



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# File 'lib/bocadillo/parser.rb', line 2

def self.parse(str, preamble, divider, terminator)
  arr = []
  i = 0
  j = 0
  k = 0
  
  while i < str.length do
    if str[i, str.length].index(preamble) === 0 # (
      t = arr[j + k]
      arr.insert(j + k + 1, t)
      i += preamble.length
    elsif str[i, str.length].index(divider) === 0 # |
      k += 1
      t = arr[j + k]
      arr.insert(j + k, t)
      i += divider.length
    elsif str[i, str.length].index(terminator) === 0 # )
      arr.slice!(j + k + 1, 1)
      j += k
      k = 0
      i += terminator.length
    else
      # trivial case, just keep appending to i+j-th string
      arr[j + k] = (arr[j + k]||'') + str[i]
      i += 1
    end
  end
  arr
end