[ir4pp1:2006] - Re: unarni minus by milica bogicevic <antomripmuk@yahoo.com>

ja nemam problema, al' se ponosim tobom. (:

Marko Gacesa <gamax@EUnet.yu> wrote:          

  Gramatika mikroJave u pdf fajlu kaze izmedju ostalog i sledece
  

  Expr = ["-"] Term {Addop Term}.
  Term = Factor {Mulop Factor}.
  Factor = Designator ["(" [ActPars] ")"] | number | charConst | "new" Type ["[" Expr "]"] | "(" Expr ")".
  

  Ja bih rekao da ovo nece da radi za, na primer:
  

         a = -4+5-2;
  

  Cini mi se da bi korektnije bilo npr:
  

  Expr = Term {Addop Term}.
  Term = Factor {Mulop Factor}.
  Factor = "-" Factor | Designator ["(" [ActPars] ")"] | number | charConst | "new" Type ["[" Expr "]"] | "(" Expr ")".
  

  Iz primera za microJava program u pdf-u ocigledno je da int moze biti i negativan.
  

  Ako u lex fajlu kazem da numericka konstanta moze pocinjati i sa minus, onda se zbuni kad treba da prepozna obican minus. Npr: 4-5 prepozna kao dva broja, "ne vidi" minus izmedju. Ima li jos neko ovakvih problema?
  

  Marko
  

  mailto:gamax@eunet.yu
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