34 lines
837 B
C
34 lines
837 B
C
#include <stdio.h>
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#include <stdlib.h>
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/*A really silly way to complete exercise 1-10 of KNR C*/
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int main(){
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int a = getchar(); /*There is, unfortuately, no immediately obvious way to avoid repeating this since we need to initialize 'a' in order to have valid data for everything beyond this line*/
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if (a == EOF){ /*Check whether first character is EOF*/
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printf ("Error: No data to parse. \n Exiting.");
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EXIT_FAILURE; /*Exit if there is no data to parse.*/
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}
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loop_start: /*Goto will circle back to the next line if a != EOF*/
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if (a == '\t' || a == '\b' || a == '\\'){
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if (a == '\t')
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printf("\\t");
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if (a == '\b')
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printf("\\b");
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if (a == '\\')
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printf ("\\\\");
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} else {
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putchar(a);
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}
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a = getchar();
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if (a != EOF) /*Only trigger next loop if 'a' contains valid data.*/
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goto loop_start;
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return 0;
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}
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