Author: kevans
Date: Fri Mar 2 02:39:41 2018
New Revision: 330262
URL: https://svnweb.freebsd.org/changeset/base/330262
Log:
lualoader: Use #str instead of tracking length with 'n'
We really gain almost nothing by tracking length separately, especially when
it's as easy as "#str", so reduce complexity.
Modified:
head/stand/lua/password.lua
Modified: head/stand/lua/password.lua
==============================================================================
--- head/stand/lua/password.lua Fri Mar 2 02:39:16 2018 (r330261)
+++ head/stand/lua/password.lua Fri Mar 2 02:39:41 2018 (r330262)
@@ -42,7 +42,6 @@ local twiddle_chars = {"/", "-", "\\", "|"}
-- Module exports
function password.read(prompt_length)
local str = ""
- local n = 0
local twiddle_pos = 1
local function draw_twiddle()
@@ -60,14 +59,13 @@ function password.read(prompt_length)
break
end
if ch == core.KEY_BACKSPACE or ch == core.KEY_DELETE then
- if n > 0 then
- n = n - 1
+ if #str > 0 then
if show_password_mask then
loader.printc("\008 \008")
else
draw_twiddle()
end
- str = str:sub(1, n)
+ str = str:sub(1, #str - 1)
end
else
if show_password_mask then
@@ -76,7 +74,6 @@ function password.read(prompt_length)
draw_twiddle()
end
str = str .. string.char(ch)
- n = n + 1
end
end
return str
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