43 lines
826 B
C
43 lines
826 B
C
#include <stdio.h>
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#include <stdlib.h>
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static unsigned char get = 0;
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static unsigned char _stack[4];
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static unsigned char *stack = _stack;
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static unsigned char *state;
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int main(){
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int c;
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while((c = getchar()) != EOF){
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if(stack == (unsigned char *)0)
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return (char)state;
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if(get){
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state = (char *)c;
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get = 0;
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continue;
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}
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switch(c){
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case ' ':
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case '\n':
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case '\r':
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case '\t':
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case '\v':
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break;
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case '!': state = stack; break;
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case '$': stack = state; state = (char *)*_stack; break;
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case '%': *stack = (char)state; break;
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case '^': state = (char *)0; break;
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case '+': ++state; break;
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case '-': --state; break;
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case '>': putchar((char)state); break;
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case '<': get = 1; break;
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case ':':
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while((c = getchar()) != '\n')
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if(c == EOF)
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goto fin;
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break;
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}
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}
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fin: return 1;
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}
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