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Diffstat (limited to 'coreutils/tr.c')
| -rw-r--r-- | coreutils/tr.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/coreutils/tr.c b/coreutils/tr.c index 6d4cb4a14..12d07152b 100644 --- a/coreutils/tr.c +++ b/coreutils/tr.c @@ -18,6 +18,35 @@ /* http://www.opengroup.org/onlinepubs/009695399/utilities/tr.html * TODO: graph, print */ + +//kbuild:lib-$(CONFIG_TR) += tr.o + +//config:config TR +//config: bool "tr" +//config: default n +//config: help +//config: tr is used to squeeze, and/or delete characters from standard +//config: input, writing to standard output. + +config FEATURE_TR_CLASSES + bool "Enable character classes (such as [:upper:])" + default n + depends on TR + help + Enable character classes, enabling commands such as: + tr [:upper:] [:lower:] to convert input into lowercase. + +config FEATURE_TR_EQUIV + bool "Enable equivalence classes" + default n + depends on TR + help + Enable equivalence classes, which essentially add the enclosed + character to the current set. For instance, tr [=a=] xyz would + replace all instances of 'a' with 'xyz'. This option is mainly + useful for cases when no other way of expressing a character + is possible. + #include "libbb.h" enum { |