idea

1 files changed, 19 insertions, 7 deletions

diff --git a/kmer_utils.c b/kmer_utils.c
index c0441e2..7b483ea 100644
--- a/kmer_utils.c
+++ b/kmer_utils.c
@@ -16,31 +16,43 @@
 //  long kmer - how long of a index value you want to return
 //  long error_pos - what index to return for a non ACGT character
 //
-inline long convert_kmer_to_index(const char *str, int kmer, long error_pos) {
+inline long num_to_index(const char *str, int kmer, long error_pos) {
 
   int i = 0;
   unsigned long out = 0;
   unsigned long multiply = 1;
 
   for(i = kmer - 1; i >= 0; i--){
+
+    out += str[i] * multiply;
+    multiply = multiply << 2;
+  }
+
+  return out;
+}
+
+void convert_kmer_to_num(char *str, long length) {
+
+  long i = 0;
+
+  for(i = 0; i < length; i++) {
     switch(str[i] | 0x20 ) {
       case 'a':
+        str[i] = 0;
         break;
       case 'c':
-        out += 1 * multiply;
+        str[i] = 1;
         break;
       case 'g':
-        out += 2 * multiply;
+        str[i] = 2;
         break;
       case 't':
-        out += 3 * multiply;
+        str[i] = 3;
         break;
       default:
-        return error_pos; 
+        str[i] = 5;
     }
 
-    multiply = multiply << 2;
   }
 
-  return out;
 }