diff --git a/plugin/Banana.vim b/plugin/Banana.vim
new file mode 100644
index 0000000..b6d18ae
--- /dev/null
+++ b/plugin/Banana.vim
@@ -0,0 +1,195 @@
+"------------------------------------------------------------------------------
+" Exit when your app has already been loaded (or "compatible" mode set)
+if exists("g:loaded_Banana") || &cp
+	finish
+endif
+let g:loaded_Banana= 1 " your version number
+let s:keepcpo           = &cpo
+set cpo&vim
+
+" Public Interface:
+" AppFunction: is a function you expect your users to call
+" PickAMap: some sequence of characters that will run your AppFunction
+" Repeat these three lines as needed for multiple functions which will
+" be used to provide an interface for the user
+if !hasmapto('<Plug>BananaEnc')
+	map <unique> <Leader>b <Plug>BananaEnc
+endif
+
+if !hasmapto('<Plug>BananaDec')
+	map <unique> <Leader>d <Plug>BananaDec
+endif
+"
+"" Global Maps:
+""
+"noremap <silent> <unique> <script> <Plug>BananaPybanana
+"			\ :set lz<CR>:call <SID>Pybanana()<CR>:set nolz<CR>
+noremap <silent> <unique> <script> <Plug>BananaEnc
+			\ :call <SID>Enc()<CR>
+noremap <silent> <unique> <script> <Plug>BananaDec
+			\ :call <SID>Dec()<CR>
+
+"command! Banana call s:PyBanana()
+"nnoremap ;b :Banana<CR>
+"vnoremap ;b :<C-U>Banana<CR>
+"
+"------------------------------------------------------------------------------
+" s:AppFunction: this function is available via the <Plug>/<script>
+" interface above
+"
+"fun! s:Pybanana()
+"python3 << EOL
+"import vim
+"import re
+"
+"def dec2banana(num, dictstart = None, shiftend = None, minlength = None, dictionary = None):
+"    #defaults
+"    if dictstart is None: dictstart = 0
+"    if shiftend is None: shiftend = 0
+"    if minlength is None: minlength = 0
+"    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")]
+"    
+"    numdict = len(dictionary)
+"    v = num
+"    st = ""
+"    l = 0
+"
+"    i = (numdict - 1 + dictstart + shiftend) % numdict
+"    while not (v == 0 and i == (numdict - 1 + dictstart) % numdict and l >= minlength):
+"        r = v % len(dictionary[i])
+"        v = int(v / len(dictionary[i]))
+"        st = dictionary[i][r] + st
+"        i = (i - 1) % numdict
+"        l += 1
+"   
+"    return(st)
+"    
+"def banana2dec(banana, dictstart = None, shiftend = None, dictionary = None):
+"    #defaults
+"    if dictstart is None: dictstart = 0
+"    if shiftend is None: shiftend = 0
+"    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")] #, list("123456")
+"
+"    numdict = len(dictionary)
+"    if (len(banana) - shiftend) % numdict != 0:
+"        return("Banana non valida")
+"    v = 0
+"    for i in range(len(banana)):
+"        r = (numdict + i + dictstart) % numdict
+"        try:
+"            v = v * len(dictionary[r]) + dictionary[r].index(banana[i])
+"        except:
+"            return("Carattere non valido in posizione", i+1)
+"    
+"    return(v)
+"
+"def isbanana(banana, dictstart = None, shiftend = None, dictionary = None):
+"    #defaults
+"    if dictstart is None: dictstart = 0
+"    if shiftend is None: shiftend = 0
+"    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")] #, list("123456")
+"
+"    numdict = len(dictionary)
+"    if (len(banana) - shiftend) % numdict != 0:
+"        return(False)
+"    for i in range(len(banana)):
+"        r = (numdict + i + dictstart) % numdict
+"        if banana[i] not in dictionary[r]:
+"            return(False)
+"
+"    return(True)
+"
+"def callback_dec(x):
+"    b = x[0].strip().lower()
+"    if isbanana(b):
+"        return "%s" % banana2dec(b)
+"    else:
+"        return x[0]
+"
+"def text2dec(text):
+"    text = re.sub(r"[A-Z][A-Z]*", callback_dec, text)
+"	#return text
+"    print(text)
+"
+"def callback(x):
+"    return " %s " % dec2banana(int(x[0], base=10)).upper()
+"
+"def text2banana(text):
+"    text = re.sub(r"[0-9][0-9]*", callback, text)
+"    return text
+"
+"def get_selected_text():
+"    buf = vim.current.buffer
+"    (lnum1, col1) = buf.mark('<')
+"    (lnum2, col2) = buf.mark('>')
+"    lines = vim.eval('getline({}, {})'.format(lnum1, lnum2))
+"    lines[0] = lines[0][col1:]
+"    lines[-1] = lines[-1][:col2]
+"
+"    return "\n".join(lines)
+"
+"def replace_selected_text(new_str):
+"    buf = vim.current.buffer
+"    (lnum1, col1) = buf.mark('<')
+"    (lnum2, col2) = buf.mark('>')
+"    lines = vim.eval('getline({}, {})'.format(lnum1,lnum2))
+"    new_str = lines[0][:col1] + new_str + lines[-1][col2+1:]
+"    new_str_list = new_str.split('\n')
+"    del buf[lnum1-1:lnum2]
+"    buf.append(new_str_list, lnum1-1)
+"    return new_str
+"
+"replace_selected_text(text2banana(get_selected_text()))
+"
+"EOL
+"
+"	" your script function can set up maps to internal functions
+"	"nnoremap <silent> <Left> :set lz<CR>:silent! call
+"	"<SID>AppFunction2()<CR>:set nolz<CR>
+"
+"	" your app can call functions in its own script and not worry
+"	" about name
+"	" clashes by preceding those function names with <SID>
+"	"call s:InternalAppFunction(...)
+"
+"	" or you could call it with
+"	"call s:InternalAppFunction(...)
+"endfun
+
+python3 import sys
+python3 import vim
+python3 sys.path.append(vim.eval('expand("<sfile>:h")'))
+
+fun! s:Enc()
+	python3 << EOL
+from banana import text2banana,get_selected_text,replace_selected_text
+
+replace_selected_text(text2banana(get_selected_text()))
+
+EOL
+endfun!
+
+fun! s:Dec()
+	python3 << EOL
+from banana import text2dec,get_selected_text,replace_selected_text
+
+replace_selected_text(text2dec(get_selected_text()))
+
+EOL
+endfun!
+
+
+"------------------------------------------------------------------------------
+" s:InternalAppFunction: this function cannot be
+" called from outside the
+" script, and its name won't clash with whatever else
+" the user has loaded
+"fun! s:InternalAppFunction(...)
+"
+"	..whatever..
+"endfun
+"
+"
+"------------------------------------------------------------------------------
+let &cpo= s:keepcpo
+unlet s:keepcpo
diff --git a/plugin/banana.py b/plugin/banana.py
new file mode 100644
index 0000000..87157e9
--- /dev/null
+++ b/plugin/banana.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+
+import vim
+import re
+import sys
+
+def dec2banana(num, dictstart = None, shiftend = None, minlength = None, dictionary = None):
+    #defaults
+    if dictstart is None: dictstart = 0
+    if shiftend is None: shiftend = 0
+    if minlength is None: minlength = 0
+    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")]
+    
+    numdict = len(dictionary)
+    v = num
+    st = ""
+    l = 0
+
+    i = (numdict - 1 + dictstart + shiftend) % numdict
+    while not (v == 0 and i == (numdict - 1 + dictstart) % numdict and l >= minlength):
+        r = v % len(dictionary[i])
+        v = int(v / len(dictionary[i]))
+        st = dictionary[i][r] + st
+        i = (i - 1) % numdict
+        l += 1
+   
+    return(st)
+
+    
+def banana2dec(banana, dictstart = None, shiftend = None, dictionary = None):
+    #defaults
+    if dictstart is None: dictstart = 0
+    if shiftend is None: shiftend = 0
+    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")] #, list("123456")
+
+    numdict = len(dictionary)
+    if (len(banana) - shiftend) % numdict != 0:
+        return("Banana non valida")
+    v = 0
+    for i in range(len(banana)):
+        r = (numdict + i + dictstart) % numdict
+        try:
+            v = v * len(dictionary[r]) + dictionary[r].index(banana[i])
+        except:
+            return("Carattere non valido in posizione", i+1)
+    
+    return(v)
+
+def isbanana(banana, dictstart = None, shiftend = None, dictionary = None):
+    #defaults
+    if dictstart is None: dictstart = 0
+    if shiftend is None: shiftend = 0
+    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")] #, list("123456")
+
+    numdict = len(dictionary)
+    if (len(banana) - shiftend) % numdict != 0:
+        return(False)
+    for i in range(len(banana)):
+        r = (numdict + i + dictstart) % numdict
+        if banana[i] not in dictionary[r]:
+            return(False)
+
+    return(True)
+
+def callback(x):
+    return " %s " % dec2banana(int(x[0], base=10)).upper()
+
+def text2banana(text):
+    text = re.sub(r"[0-9][0-9]*",callback,text)
+    return text
+
+def callback_dec(x):
+    b = x[0].strip().lower()
+    if isbanana(b):
+        return "%s" % banana2dec(b)
+    else:
+        return x[0]
+
+def text2dec(text):
+    text = re.sub(r"[A-Z][A-Z]*",callback_dec,text)
+    return text
+
+def get_selected_text():
+    buf = vim.current.buffer
+    (lnum1, col1) = buf.mark('<')
+    (lnum2, col2) = buf.mark('>')
+    lines = vim.eval('getline({}, {})'.format(lnum1, lnum2))
+    lines[0] = lines[0][col1:]
+    lines[-1] = lines[-1][:col2]
+
+    return "\n".join(lines)
+
+
+def replace_selected_text(new_str):
+    buf = vim.current.buffer
+    (lnum1, col1) = buf.mark('<')
+    (lnum2, col2) = buf.mark('>')
+    lines = vim.eval('getline({}, {})'.format(lnum1,lnum2))
+    new_str = lines[0][:col1] + new_str + lines[-1][col2+1:]
+    new_str_list = new_str.split('\n')
+    del buf[lnum1-1:lnum2]
+    buf.append(new_str_list, lnum1-1)
+    return new_str
+
+
+if __name__ == "__main__":
+    print("Ciao sono la libreria banana")