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| author | Randall Spangler <rspangler@chromium.org> | 2012-07-22 16:16:01 -0700 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-07-23 11:03:33 -0700 |
| commit | e27e2f02292bc825379ba914e43e13569ec738eb (patch) | |
| tree | fa9fdae3658f4614bb24395126349597539d963c /common/util.c | |
| parent | 085b31222b9f34e5470031fe1e957804beded69d (diff) | |
| download | chrome-ec-e27e2f02292bc825379ba914e43e13569ec738eb.tar.gz | |
Add console functionality
Keys I keep hitting should work like I expect them to.
Home or Ctrl+A = move to beginning of line
End or Ctrl+E = move to end of line
Del = delete-right
Ctrl+K = delete to end of line
Ctrl+L = clear screen and reprint current line
Ctrl+N = next command
Ctrl+P = previous command
Also, improve filtering of escape sequences and non-printable
characters, so hitting unsupported keys or control codes doesn't mess
up the current line of input.
BUG=chrome-os-partner:11666
TEST=manual
type 'fhelpbar'
home -> cursor moves to beginning of line
Ctrl+E -> cursor moves to end of line
Ctrl+A -> cursor moves to beginning of line
(of course, if you're using Minicom, you'll need to type Ctrl+A A, since
Minicom uses Ctrl+A as its control key)
del -> 'helpbar'
end -> cursor moves to end of line
left-arrow 3 times -> cursor moves under 'b'
Ctrl+L -> screen clears, cursor still under 'b'
Ctrl+K -> 'help'
Ctrl+Y Page-Up Page-Down -> nothing printed
enter -> prints known commands (output of 'help' command)
Ctrl+P -> 'help'
Ctrl+N -> empty command line
Change-Id: Id893c93b26db8f3deed6ea8be5aab88a3daaead4
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/28143
Diffstat (limited to 'common/util.c')
| -rw-r--r-- | common/util.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/common/util.c b/common/util.c index 69cdf1db64..008dc3843a 100644 --- a/common/util.c +++ b/common/util.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. +/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ @@ -35,6 +35,10 @@ int isalpha(int c) return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'); } +int isprint(int c) +{ + return c >= ' ' && c <= '~'; +} int tolower(int c) { |