80 lines
1.5 KiB
C
Executable File
80 lines
1.5 KiB
C
Executable File
#define _POSIX_C_SOURCE 200809L
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#include <stdio.h>
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int ctoi(char c);
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int main(int argc, char ** argv) {
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int i, j, oct_temp;
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char char_temp;
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int trailing_newline = 1; //1 if true, 0 if \c present
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for(i = 1; i < argc; i++) {
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for(j = 0; argv[i][j] != '\0'; j++) {
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if(argv[i][j] == '\\') {
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j++;
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switch(argv[i][j]) {
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case 'a': printf("\a"); break;
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case 'b': printf("\b"); break;
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case 'c': trailing_newline = 0; break;
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case 'f': printf("\f"); break;
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case 'n': printf("\n"); break;
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case 'r': printf("\r"); break;
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case 't': printf("\t"); break;
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case 'v': printf("\v"); break;
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case '\\': printf("\\"); break;
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case '0': {
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j++;
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oct_temp = ctoi(argv[i][j]);
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j++;
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if(ctoi(argv[i][j] != -1)) {
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oct_temp *= 8;
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oct_temp += ctoi(argv[i][j]);
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j++;
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if(ctoi(argv[i][j] != -1)) {
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oct_temp *= 8;
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oct_temp += ctoi(argv[i][j]);
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}
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else {
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j--;
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}
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}
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else {
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j--;
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}
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printf("%c", (char)oct_temp);
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}
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break;
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default: printf("\\%c", argv[i][j]);
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break;
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}
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}
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else {
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printf("%c", argv[i][j]);
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}
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}
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}
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if(trailing_newline) {
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printf("\n");
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}
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return 0;
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}
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int ctoi(char c) {
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switch(c) {
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case '0': return 0;
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case '1': return 1;
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case '2': return 2;
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case '3': return 3;
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case '4': return 4;
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case '5': return 5;
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case '6': return 6;
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case '7': return 7;
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case '8': return 8;
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case '9': return 9;
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default: return -1;
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}
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}
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