0001 #include "evaluate.h"
0002 #include "UniPrint/print.h"
0003 
0004 void printChar(char& p) //输出运算符
0005 { ('\0' == p) ? printf("\\0 ") : printf("%c  ", p); }
0006 
0007 void displayProgress(char* expr, char* pCh, Stack<double>& opndStk, Stack<char>& optrStk, char* rpn) {
0008    printf("\n");
0009    for (char* p = expr; '\0' != *p; p++) printf(" %c", *p);  printf(" $\n");
0010    for (char* p = expr; p < pCh; p++) printf("  ");
0011    if ('\0' != *(pCh-1))
0012       { for (char* p = pCh; '\0' != *p; p++) printf(" %c", *p);  printf(" $"); }
0013    printf("\n");
0014    for (char* p = expr; p < pCh; p++) printf("--");  printf(" ^\n");
0015    print(optrStk);  print(opndStk);  printf("RPN:\n %s\n\n", rpn); //输出RPN
0016 }