Add ascii to the packed data

examples/complete/pack.c

@@ -24,7 +24,7 @@
 static const char *code =
     "const char *unpack(const char *name, size_t *size) {\n"
     "  const struct packed_file *p;\n"
-    "  for (p = packed_files; p->name != NULL; p++) {\n"
+    "  for (p = g_packed_files; p->name != NULL; p++) {\n"
     "    if (strcmp(p->name, name) != 0) continue;\n"
     "    if (size != NULL) *size = p->size - 1;\n"
     "    return (const char *) p->data;\n"
@@ -41,16 +41,22 @@ int main(int argc, char *argv[]) {
 
   for (i = 1; i < argc; i++) {
     FILE *fp = fopen(argv[i], "rb");
+    char ascii[12];
     if (fp == NULL) exit(EXIT_FAILURE);
 
-    printf("static const unsigned char v%d[] = {", i);
+    printf("static const unsigned char v%d[] = {\n", i);
     for (j = 0; (ch = fgetc(fp)) != EOF; j++) {
-      if ((j % 12) == 0) printf("%s", "\n ");
+      if (j == (int) sizeof(ascii)) {
+        printf(" // %.*s\n", j, ascii);
+        j = 0;
+      }
+      ascii[j] = (ch >= ' ' && ch <= '~' && ch != '\\') ? ch : '.';
       printf(" %3u,", ch);
     }
     // Append zero byte at the end, to make text files appear in memory
     // as nul-terminated strings.
-    printf("%s", " 0x00\n};\n");
+    // printf(" 0 // %.*s\n", (int) sizeof(ascii), ascii);
+    printf(" 0 // %.*s\n};\n", j, ascii);
     fclose(fp);
   }
 
@@ -58,7 +64,7 @@ int main(int argc, char *argv[]) {
   printf("%s", "  const char *name;\n");
   printf("%s", "  const unsigned char *data;\n");
   printf("%s", "  size_t size;\n");
-  printf("%s", "} packed_files[] = {\n");
+  printf("%s", "} g_packed_files[] = {\n");
 
   for (i = 1; i < argc; i++) {
     printf("  {\"%s\", v%d, sizeof(v%d) },\n", argv[i], i, i);