From 2c4c76d1e735983989f72fe641ab30dc6f7ee896 Mon Sep 17 00:00:00 2001
From: Xnoe <xnoe@xnoe.moe>
Date: Tue, 7 Sep 2021 10:46:09 +0100
Subject: [PATCH] Added filename decoding to strings

---
 kernel32.c | 22 +++++++++++++++++++++-
 strings.c  | 22 ++++++++++++++++++++++
 strings.h  |  1 +
 3 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/kernel32.c b/kernel32.c
index 05fc4ed..8e0d6c7 100644
--- a/kernel32.c
+++ b/kernel32.c
@@ -56,8 +56,28 @@ int main() {
       set_curpos(0, 0);
     } else if (strcmp(buffer, "echo", 4)) {
       printf("%s\n", rest);
+    } else if (strcmp(buffer, "type", 4)) {
+      char filenamebuffer[12];
+      uint8_t* filebuffer = 0x1006400;
+
+      decode_filename(rest, filenamebuffer);
+      if (!file_exists(filenamebuffer)) {
+        printf("File %s not found!\n", filenamebuffer);
+        continue;
+      }
+
+      for (int i=0; i<1024; i++)
+        hellotxt[i] = 0;
+      
+      load_file(filenamebuffer, filebuffer);
+      printf(filebuffer);
     } else {
-      printf("Bad Command or filename!\n");
+      char filenamebuffer[12];
+      decode_filename(buffer, filenamebuffer);
+      if (!file_exists(filenamebuffer)) {
+        printf("Bad Command or filename!\n");
+        continue;
+      }
     }
   }
 }
\ No newline at end of file
diff --git a/strings.c b/strings.c
index 4d23fc4..638405f 100644
--- a/strings.c
+++ b/strings.c
@@ -44,4 +44,26 @@ int string_split(char delimeter, char* string, char** pointer_array) {
   pointer_array[split_count] = (string+last_split_index);
 
   return split_count;
+}
+
+void decode_filename(char* nice_name, char* filenamebuffer) {
+  // Clear filenamebuffer
+  for (int i=0; i<11; i++)
+    filenamebuffer[i] = ' ';
+  filenamebuffer[11] = 0;
+  
+  int fbIndex = 0;
+  for (int i=0; i<12; i++) {
+    if (nice_name[i] == 0)
+      return;
+    if (nice_name[i] == '.') {
+      fbIndex = 8;
+      continue;
+    }
+
+    if (nice_name[i] >= 0x65 && nice_name[i] <= 0x65+26)
+      filenamebuffer[fbIndex++] = nice_name[i] & (0xff - 32);
+    else 
+      filenamebuffer[fbIndex++] = nice_name[i];
+  }
 }
\ No newline at end of file
diff --git a/strings.h b/strings.h
index 8505e88..baf7c5c 100644
--- a/strings.h
+++ b/strings.h
@@ -6,5 +6,6 @@
 bool strcmp(char* a, char* b, int max);
 char* split_on_first(char delimeter, char* string);
 int string_split(char delimeter, char* string, char** pointer_array);
+void decode_filename(char* nice_name, char* filenamebuffer);
 
 #endif
\ No newline at end of file