implemented short menu system too

README.md

@@ -56,9 +56,13 @@ Exported functions:
 
 ### `deck.menu`
 
-A library for easy menu systems for T-DeckARD programs. Allows displaying up to 10 menu items with the ability to select them with a single digit or a key on the `QWERTYUIOP` keyboard row.
+A library for easy menu systems for T-DeckARD programs. 
 
-Exports the only function, `menu(choices)`, which accepts a list of **tuples**, each in the format `(id, label)`. The `label` field is what's displayed on the screen, the `id` field is the string that gets returned upon selection. If the user selects `c`, the operation is canceled and an empty `id` string is returned.
+Exported functions:
+
+- `confirm(msg, yes='y', no='n', alt_prompt=None)`: prompt for yes/no confirmation, using a standard prompt in `msg` and the `yes`/`no` message in the corresponding parameters, or a completely alternative prompt in `alt_prompt`.Returns True or False as the result.
+- `shortmenu(choices, suffix=': ')`: display several menu items from the `choices` list, automatically labeling the first fitting letter from the item as the selection shortcut. Returns a tuple (`result`, `label`), or (``,``) in case the selection doesn't match.
+- `menu(choices)`: display up to 10 menu items with the ability to select them with a single digit or a key on the `QWERTYUIOP` keyboard row. Accepts a list of **tuples**, each in the format `(id, label)`. The `label` field is what's displayed on the screen, the `id` field is the string that gets returned upon selection. If the user selects `c`, the operation is canceled and an empty `id` string is returned.
 
 ### `deck.time`
 

deck/menu.py

@@ -64,3 +64,28 @@ def menu(choices, max_size = 10):
   else:
     print('Invalid choice!')
     return menu(choices)  
+
+def shortmenu(choices, suffix=': '):
+  letters = {}
+  cmap = []
+  for c in choices:
+    l = '?'
+    cl = len(c)
+    i = 0
+    while i < cl:
+      l = c[i].lower()
+      if l not in letters:
+        break
+      i += 1
+    if i == 0:
+      letters[l] = (c, l + ')' + c[1:])
+      cmap.append(letters[l][1])
+    elif i < cl:
+      letters[l] = (c, c[0:i] + '(' + l + ')' + c[i+1:])
+      cmap.append(letters[l][1])
+  prompt = ' '.join(cmap) + suffix
+  res = input(prompt).strip()[0].lower()
+  if res in letters:
+    return (res, letters[res][0])
+  else:
+    return ('', '')

tdeckboot.py

@@ -7,7 +7,7 @@ from deck.fs import unlock_rootfs, lock_rootfs, mount_sd, umount_sd, env, rnd
 from deck.fs import du, df, sep, pwd, ls, md, cd, rd, rm, mv, cp, sync
 from deck.input import input, input_multi
 from deck.pager import print_paged, term_size
-from deck.menu import menu
+from deck.menu import menu, shortmenu, confirm
 from deck.time import *
 from deck.hwinfo import board_id, battery_v, cpu_f, REAL_HW
 from deck.http import wget, wput, http_fetch, http_set_ua