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Feb 1st, 2012
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  1. expr : expr '+' ident | ident
  2.  
  3. void ShiftIdent() {
  4. current_token++;
  5. }
  6.  
  7. void ShiftPlus() {
  8. current_token++;
  9. }
  10.  
  11. void ShiftExpr() {
  12. switch(current_token->type) {
  13. case ident:
  14. ShiftIdent();
  15. break;
  16. default:
  17. error();
  18. }
  19. while(true) {
  20. switch(current_token->type) {
  21. case '+':
  22. ShiftPlus();
  23. ShiftIdent();
  24. break;
  25. default:
  26. return;
  27. };
  28. }
  29. }
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