Si

brainfuck.c

@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define SIZE 3000000
+
+void run(char *input);
+void printList();
+
+char *cinta;
+int main(){
+    cinta = (char*)malloc(SIZE);   
+    char fileName[50];
+    printf("Introduce el nombre del archivo: ");
+    scanf("%s", fileName);
+    char *input = (char*)malloc(sizeof(char));
+    FILE *file;
+    file = fopen(fileName, "r");
+    int i=0;
+    while(!feof(file)){
+        input[i++] = fgetc(file);
+        input = realloc(input, strlen(input) + 1);
+    }
+    fclose(file);
+    run(input);
+    printf("\n");
+    return 0;
+}
+
+void run(char *input){
+    int loopDepth = 0;
+    for (int i=0; i<strlen(input)-1; i++){
+        char c = input[i];
+        switch(c){
+        case '>':
+            cinta++;
+            break;
+        case '<':
+            cinta--;
+            break;
+        case '+':
+            ++*cinta;
+            break;
+        case '-':
+            --*cinta;
+            break;
+        case '.':
+            putchar(*cinta);
+            break;
+        case ',':
+            getchar();
+            *cinta = getchar();
+        case '[':
+            if (*cinta == 0){
+                int depth = loopDepth;
+                depth++;
+                while(depth > loopDepth){
+                    i++;
+                    c = input[i];
+                    if (c == '[')
+                        depth++;
+                    else if(c == ']')
+                        depth--;
+                }
+            }
+            break;
+        case ']':
+            if (*cinta){ 
+                int depth = loopDepth;
+                depth++;
+                while(depth > loopDepth){   
+                    i--;  
+                    c = input[i];
+                    if (c == ']')  
+                        depth++;
+                    else if(c == '[')
+                        depth--;
+                }
+            }
+            break;
+        }
+    }
+}