75 lines
1.0 KiB
C
75 lines
1.0 KiB
C
#include <stdio.h>
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// replacing tabs with spaces so it keeps indentation
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int _getline(char s[], int lim)
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{
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int c, i, j;
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for (i = 0; (c = getchar()) != '\n'; ++i)
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{
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if (i < lim - 1)
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s[i] = c;
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}
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j = i;
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if (j > lim - 1)
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j = lim - 1;
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s[j] = '\0';
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return j - 1;
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}
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void entab(char to[], char from[], int columns)
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{
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int is_placing_spaces = 0;
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int remaining_spaces = columns;
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int i_to = 0;
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int i_from = 0;
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while (from[i_from] != '\0')
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{
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if (from[i_from] == '\t')
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is_placing_spaces = 1;
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if (is_placing_spaces)
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{
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if (remaining_spaces == 0)
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{
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is_placing_spaces = 0;
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remaining_spaces = columns + 1;
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++i_from;
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}
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else
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{
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to[i_to] = '_';
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++i_to;
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}
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}
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else
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{
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if (remaining_spaces == 0)
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remaining_spaces = columns;
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to[i_to] = from[i_from];
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++i_to;
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++i_from;
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}
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--remaining_spaces;
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}
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to[i_to] = '\0';
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}
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main()
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{
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int size = 500;
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char from[size];
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char to[size];
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while (1)
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{
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_getline(from, size);
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entab(to, from, 4);
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printf("%s\n", to);
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}
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}
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