TREX(1): translate expressions
USAGE
usage: trex [-Dcfglrstux] to | {from to}
-D: debug
-c: translate to capitals (upper case)
-f: match expressions in full files
-g: change globally (as many times as can be done per line)
-l: translate to lower case
-r: interpret replacements as rune sets
-s: handle args as strings and not rexps.
-t: translate to title case
-u: use unix out
-x: match against each extracted text (eg., out from gr -x)
DESCRIPTION
Trex translates expressions in the input.
When given from and
to it translates expressions starting at
from and ending at
to, for each pair given. Under flag
-s both expressions are considered strings,
and flag -r makes them behave like in the
venerable tr command in UNIX. An empty (but
not missing) "to" implies removal of the
matched text in this case.
Flags -x and -f are
similar to those in gr and are used to
preserve matching within data portions as selected by previous
gr calls and to perform the matching against
the full input text.
There is no flag to delete, just replace with nothing.
EXAMPLES
Translate digits to letters starting at A:
; eco A01Z | trex -u -r 0-9 A-x
AABZ
Make a title
; eco lord of the rings | trex -ut
Lord Of The Rings
SOURCE
/zx/sys/src/clive/cmd/trex
