readline function

main.c

@@ -1,6 +1,49 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
 
+#define INITIALLINEBUFFER 80
+
+char *readline(FILE* in) {
+    int size_of_buffer = INITIALLINEBUFFER;
+    char *buffer = calloc(size_of_buffer, sizeof(char));
+
+    char character;
+    int count;
+
+    while (true) {
+
+        if (count == (size_of_buffer)) {
+            buffer = reallocarray(buffer, (size_of_buffer *= 2),  sizeof(char));
+
+            if (!buffer) {
+                return 0;
+            }
+        }
+
+        character = fgetc(in);        
+        if (character == EOF || character == '\n') {
+            buffer[count] = '\0';
+            return buffer;
+        } else {
+            buffer[count] = character;
+        }
+    }
+
+
+}
+
+int repl(void) {
+    while (true) {
+
+    }
+}
 
 
 int main(int argc, char** argv) {
-    return 0;
+
+    repl();
+
+    exit(0);
+
 }