74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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char *replace(char *str, char *sub){
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//clc taille sub
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//nbr * x taille sub
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int len_fin = 0;
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//clc taille str
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int index = 0;
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int nb_etoile = 0;
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while( *(str + index)){
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if ( *(str + index) == '*') nb_etoile ++;
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index ++;
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}
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len_fin = index;
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//clc taille sub
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index = 0;
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while (*(sub + index)) index ++;
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//longueur finale
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len_fin += nb_etoile * index;
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char *rslt = malloc(len_fin);
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if (rslt == NULL) return NULL;
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index = 0;
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int index_str = 0;
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int index_sub = 0;
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//parcours total
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while(*(str + index_str)){
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index_sub = 0;
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//si le char est une etoile
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if (*(str + index_str) == '*'){
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//copie de sub dans rslt
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while(*(sub + index_sub)){
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*(rslt + index) = *(sub + index_sub);
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index_sub ++;
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index ++;
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}
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}
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else{
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*(rslt + index) = *(str + index_str);
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index ++;
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}
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index_str ++;
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}
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return rslt;
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}
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/*
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int main(){
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char *test =replace("Hello *", "World!"); // Hello World!
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printf("%s\n", test);
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free(test);
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//printf("ici");
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test = replace("*H*e*l*l*o*", "BIM"); // BIMHBIMeBIMlBIMlBIMoBIM
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printf("%s\n", test);
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free(test);
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}*/
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