35 lines
770 B
C
35 lines
770 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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char* expand_tabs(const char* string);
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int main(void)
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{
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const char* str = "This is a text This is another one. ' ' <- space; ' ' <-tab";
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printf("%s - %d\n", str, (int)strlen(str));
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printf("%s - %d\n", expand_tabs(str),(int) strlen(expand_tabs(str)));
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}
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char* expand_tabs(const char* string){
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int tab_count = 0, letter_count = 0;
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for(int i = 0; string[i] != '\0'; i++){
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letter_count++;
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if(string[i] == '\t')
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tab_count++;
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}
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char* ret = malloc(sizeof(char) * letter_count + 3*tab_count);
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char* filler = ret;
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for(int i = 0; string[i] != '\0'; i++){
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if(string[i] == '\t'){
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for (int j = 0; j < 4; ++j) {
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*(filler++) = ' ';
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}
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}else{
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*(filler++) = string[i];
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}
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}
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return ret;
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}
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