Module: CandySql

Defined in:
lib/candy--sql.rb,
lib/candy--sql/token.rb,
lib/candy--sql/version.rb,
lib/candy--sql/variable.rb,
lib/candy--sql/interpreter.rb

Defined Under Namespace

Modules: Interpreter, Token, Valiable

Constant Summary collapse

VERSION = 
"0.1.0"

Class Method Summary collapse

Class Method Details

.make(filename) ⇒ Object 



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# File 'lib/candy--sql.rb', line 10

def make(filename)

  mode = 0 #(0: 変数定義、1: SQL構文)
  var = {}
  res = []

  open(filename) { |file|
    while row = file.gets

      # トークン分割
      src = CandySql::Token.tokenize(row)

      if mode == 0
        if src[1] == "=="
          # AS定義
          var = var.merge( CandySql::Valiable.definAs(src, var) )
        elsif src[1] == "="
          # 変数定義
          var = var.merge( CandySql::Valiable.defin(src, var) )
        elsif src[1] == "<"
          # サブクエリ定義
          tmp = "(" + CandySql.make(src[2][1 .. -2]) + ")"
          src.slice!( 2, 2 )
          src.insert(2, tmp)
          src[1] = "="
          var = var.merge( CandySql::Valiable.definAs(src, var) )
        elsif src[1] == "--"
          mode = 1
        end
      end
      
      if mode == 1
        # SQL構文
        res << CandySql::Interpreter.statement(src, var)
      end
      
    end
  }

  return res.join("\n")
end