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| author | Denys Vlasenko | 2017-09-14 11:20:36 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2017-09-14 11:20:36 +0200 |
| commit | 44cb1666ef4403a0fa8838d49006567ac960b33a (patch) | |
| tree | d26bf2ff60c2f3e9ea1d98f5a4fe0d9648e12851 /miscutils/hexedit.c | |
| parent | 8838c6d53ecf9491d862ee090c9bf1579fa64eed (diff) | |
| download | busybox-44cb1666ef4403a0fa8838d49006567ac960b33a.zip busybox-44cb1666ef4403a0fa8838d49006567ac960b33a.tar.gz | |
hexedit: code shrink
function old new delta
hexedit_main 1176 1169 -7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/hexedit.c')
| -rw-r--r-- | miscutils/hexedit.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/miscutils/hexedit.c b/miscutils/hexedit.c index bdb7683..1d683b7 100644 --- a/miscutils/hexedit.c +++ b/miscutils/hexedit.c @@ -274,7 +274,7 @@ int hexedit_main(int argc UNUSED_PARAM, char **argv) for (;;) { unsigned cnt; - int32_t key = key; // for compiler + int32_t key = key; /* for compiler */ uint8_t byte; fflush_all(); @@ -286,11 +286,12 @@ int hexedit_main(int argc UNUSED_PARAM, char **argv) key = CTRL('X'); cnt = 1; + if ((unsigned)(key - 'A') <= 'Z' - 'A') + key |= 0x20; /* convert A-Z to a-z */ switch (key) { - case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': - /* lowercase, then convert to '0'+10...15 */ - key = (key | 0x20) - ('a' - '0' - 10); + /* convert to '0'+10...15 */ + key = key - ('a' - '0' - 10); /* fall through */ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': |