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1.1 ! root 1: #include <stdio.h> ! 2: #include <ctype.h> ! 3: ! 4: main() ! 5: { ! 6: int c; ! 7: while((c=getchar())!=EOF) { ! 8: switch(c) { ! 9: case '%': ! 10: percent(); ! 11: break; ! 12: case ']': ! 13: bracket(); ! 14: break; ! 15: case '@': ! 16: at(); ! 17: break; ! 18: case '$': ! 19: getchar(); ! 20: if(getchar()=='\n') ! 21: putchar('\n'); ! 22: break; ! 23: case '!': ! 24: bang(); ! 25: break; ! 26: default: ! 27: putchar(c); ! 28: } ! 29: } ! 30: } ! 31: ! 32: percent() ! 33: { ! 34: int c = getchar(); ! 35: switch(c) { ! 36: case '_': ! 37: putchar('_'); ! 38: break; ! 39: case '1': ! 40: case '2': ! 41: case '5': ! 42: case '6': ! 43: case '7': ! 44: case '8': ! 45: c = getchar(); ! 46: if(c!=' ') ! 47: putchar(c); /* shouldn't happen */ ! 48: break; ! 49: case '#': ! 50: break; ! 51: default: /* shouldn't happen */ ! 52: putchar(c); ! 53: } ! 54: } ! 55: ! 56: at() ! 57: { ! 58: int c = getchar(); ! 59: switch(c) { ! 60: case 'A': ! 61: case 'a': ! 62: putchar('a'); ! 63: break; ! 64: case 'e': ! 65: default: /* shouldn't happen */ ! 66: putchar(c); ! 67: break; ! 68: } ! 69: } ! 70: ! 71: bracket() ! 72: { ! 73: int c = getchar(); ! 74: if(c=='O') ! 75: putchar('o'); ! 76: else ! 77: putchar(c); ! 78: } ! 79: ! 80: bang() ! 81: { ! 82: int c = getchar(); ! 83: if(isdigit(c)) ! 84: return; ! 85: else /* shouldn't happen */ ! 86: putchar(c); ! 87: } ! 88:
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