--

Author: Michael Mork

.DS_Store

@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+char *characterTable = NULL;
+
+void sizeCharacterTableForasciiSymbol(unsigned ash) {    
+    int h = (int)ash;
+    int thresh = sizeof(characterTable);
+    if (h >= thresh) {
+        characterTable = realloc(characterTable, sizeof(char) * h);
+    }
+}
+
+char * exclude(char *exclude, char *fromThese) {
+    characterTable = malloc(sizeof(char *));
+    
+    int indicesCount = 0;
+    int i;
+    for (i=0; exclude[i]!='\0'; i++) {
+        char fromThis = exclude[i];
+        if (fromThis == *" ") {
+            continue; 
+        }
+        unsigned asciiValue = (int)fromThis; 
+        sizeCharacterTableForasciiSymbol(asciiValue);
+        characterTable[asciiValue] = fromThis;
+    } 
+
+    char *survived = malloc(i*(sizeof(char)) + 1);
+    indicesCount = 0;
+    i = 0;
+    for (i=0; fromThese[i]!='\0'; i++) {
+        char fromTheuse = fromThese[i];
+        unsigned asciiValue = (int)fromTheuse;
+        char compare = characterTable[asciiValue];        
+        if (fromTheuse != compare) { 
+            survived[indicesCount] = fromTheuse;
+            indicesCount++;
+        }
+    }
+    free(characterTable);
+    return realloc(survived, indicesCount*sizeof(char));//survived;
+}
+
+int main() {
+    char *ex = "aBC d f F G  nmlt q Q R o ST uvz";// = exa;
+    char *fr = "abcdefgHIJKLMNOPQRSTUVwxyz";// = fro;
+    char *e = exclude(ex, fr);
+    printf("exclude: %s\n", ex);
+    printf("from: %s\n", fr);
+    printf("\n----\n");
+    printf("result: %s\n", e);
+}
+