diff --git a/dico.c b/dico.c
index 2289146..8cb0a97 100644
--- a/dico.c
+++ b/dico.c
@@ -4,16 +4,31 @@ void make_empty_dico(dico d){
   for(int i=0;i<NB1CHAR;i++)
     d[i]=NULL;
 }
-void delete_dico(dico_d){
+void delete_dico(dico d){
   for(int i=0;i<NB1CHAR;i++)
     delete_tree(d[i]);
 }
 
+byte end_kind(const string s){
+  byte endKind=0;
+  int i=1;
+  if(!isalpha(s[0]))
+    return 0;
+  if(islower(s[0])){
+    endKind=1;
+    while(islower(s[i]));
+  }
+  else {//if isupper(s[0])
+    
+  }
+  endKind*=( (s[i]=='\0') + 2* (s[i]=='\''&&s[i+1]=='s'&&s[i+2]=='\0') );
+  return endKind;
+}
+
+bool is_word(const byte endKind){
+  return end_Kind!=0;
+}
 
-int hash2(char c){
-  //needs to check isalpha==true
-  if(c<='Z')
-    return c-'A';
-  return c-'a'+26;
+bool addto_dico(dico d,string s){
+  if(is_word()
 }
-bool addto_dico(dico,string){}
diff --git a/dico.h b/dico.h
index 732320d..172394a 100644
--- a/dico.h
+++ b/dico.h
@@ -3,15 +3,15 @@
 
 #include "treeh.h"
 
-#define NB1CHAR 52 // A-Z + a-z
-
-typedef tree dico[NB1CHAR];
+typedef tree dico[NBCHAR];
 
 void make_empty_dico(dico);
 void delete_dico(dico);
-int hash2(char);//needs to check isalpha==true
 bool addto_dico(dico,string);
 
+bool is_word(byte endKind);//pass end_kind() as parameter
+byte end_kind(string);
+
 void loadfrom_file(dico,FILE*);
 void loadfrom_keyboard(dico);
 
--
libgit2 0.21.2