From 673caef86219b8d36e72d104eaee9fc4b2db3854 Mon Sep 17 00:00:00 2001
From: Jorj Bauer <jorj@jorj.org>
Date: Wed, 7 Feb 2018 14:05:37 -0500
Subject: [PATCH] abstracting directory filename filter

---
 bios.cpp | 6 +++---
 bios.h   | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/bios.cpp b/bios.cpp
index 581302d..2161da9 100644
--- a/bios.cpp
+++ b/bios.cpp
@@ -708,7 +708,7 @@ void BIOS::stripDirectory()
 
 void BIOS::DrawDiskNames(uint8_t page, int8_t selection)
 {
-  uint8_t fileCount = GatherFilenames(page);
+  uint8_t fileCount = GatherFilenames(page, "dsk,.po,nib,img");
   g_display->clrScr();
   g_display->drawString(M_NORMAL, 0, 12, "BIOS Configuration - pick disk");
 
@@ -739,14 +739,14 @@ void BIOS::DrawDiskNames(uint8_t page, int8_t selection)
 }
 
 
-uint8_t BIOS::GatherFilenames(uint8_t pageOffset)
+uint8_t BIOS::GatherFilenames(uint8_t pageOffset, const char *filter)
 {
   uint8_t startNum = 10 * pageOffset;
   uint8_t count = 0; // number we're including in our listing
 
   while (1) {
     char fn[BIOS_MAXPATH];
-    int8_t idx = g_filemanager->readDir(rootPath, "dsk,.po,nib,img", fn, startNum + count, BIOS_MAXPATH);
+    int8_t idx = g_filemanager->readDir(rootPath, filter, fn, startNum + count, BIOS_MAXPATH);
 
     if (idx == -1) {
       return count;
diff --git a/bios.h b/bios.h
index b3a72db..d075a4c 100644
--- a/bios.h
+++ b/bios.h
@@ -37,7 +37,7 @@ class BIOS {
 
   bool SelectDiskImage();
   void DrawDiskNames(uint8_t page, int8_t selection);
-  uint8_t GatherFilenames(uint8_t pageOffset);
+  uint8_t GatherFilenames(uint8_t pageOffset, const char *filter);
 
   void stripDirectory();