Hi Jordan
On 10.07.2020 22:45, Jordan Geoghegan wrote:
Hey folks,
Does the 'tr' utility support character classes in OpenWRT? I was
playing around with an OpenWRT x86_64 VM and I noticed that 'tr' doesn't
seem to support character classes.
The command " echo HELLO | tr '[:upper:]' '[:lower:]' " does not
convert to the text to lowercase as it should (and as required by
POSIX).
This would be expected behavior. OpenWrt disables tr character classes
in BusyBox by default, see [1]:
config BUSYBOX_DEFAULT_FEATURE_TR_CLASSES
bool
default n
config BUSYBOX_DEFAULT_FEATURE_TR_EQUIV
bool
default n
I don't know what the size cost in the BusyBox binary is, but that will
likely be the deciding factor for such a change.
1:
https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=package/utils/busybox/Config-defaults.in
Regards,
Magnus Kroken
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