11-02-2018
Those are round braces, not curly braces, and they create a sub-shell. Right now their only side-effect is wasting time and memory, but if you make a habit of that you'll discover that variable assignments and the like don't communicate outside them.
So they're not decorations and can cause problems if you make a habit of it.
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ecppl(1) Tntnet users guide ecppl(1)
NAME
ecppl - language-extractor for ecpp
SYNOPSIS
ecppl [-I dir] [-ln] [-o output-filename] ecpp-filename
DESCRIPTION
Ecppl is the language-extractor for ecpp. Ecpp - the template-language used with tntnet - supports internationalized applications. In
ecpp-templates a tag <i18n> changes the meaning of curly braces. A phrase, which is enclosed in curly braces, can be translated. At run-
time the phrase is looked up in a language-library. This mode can be quit with the tag </i18n>. Phrases must not have newlines or tabs.
Every phrase, which is marked as translatable, is extracted with ecppl and written to standard output or to a specified output-filename
line by line.
OPTIONS
-I dir Search include-files in directory. This option can be passed multiple times. All specified directories are searched in turn for
include-files.
-l Extract language-phrases (the default)
-n Extract non-language-phrases
-o filename
Specify output filename
AUTHOR
This manual page was written by Tommi Makitalo <tommi@tntnet.org>.
SEE ALSO
tntnet(1), ecpp(7), ecppll(1).
Tntnet 2006-08-26 ecppl(1)