Randall Spangler 7d06db201f Enhance printf() ...

1. Add precision to limit string length.
   ccprintf("%.4s", "foobar") prints "foob"

2. Handle '*' for length, precision fields.
   ccprintf("%.*s", 3, "foobar") prints "foo"

3. Add hex-dump code "%h"
   ccprintf("%.*s", 4, "foobar") prints 666f6f62

BUG=none
TEST=at ec console, 'hash' prints the current hash

Change-Id: I568310f2727495b021081bf58df2a0bbb3c74e73
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/28704
Reviewed-by: Bill Richardson <wfrichar@chromium.org>

2012-07-30 13:41:33 -07:00

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