Perform Bash-style brace expansion on a string, returning a sequence of all resulting strings. Braces can be nested, and sequence expressions are supported.
brace_expand = require 'brace-expand'
s1 = brace_expand.expand("{1!,a } {-2..08..5} {z..x}")
-- The sequence returned above is identical to this one:
s2 = {
"1! -2 z", "1! -2 y", "1! -2 x",
"1! 03 z", "1! 03 y", "1! 03 x",
"1! 08 z", "1! 08 y", "1! 08 x",
"a -2 z", "a -2 y", "a -2 x",
"a 03 z", "a 03 y", "a 03 x",
"a 08 z", "a 08 y", "a 08 x",
}
Special characters ({ , . }) can be quoted by preceding
then with a backslash. That backslash is currently left in place and
not removed from the results. (This may change in the future.)
Only the characters listed above have any special meaning; in
particular, spaces and quotes are treated like any other character.
(The sequence ${ is not treated differently either.)
Otherwise, this module tries to mimic Bash's behavior as closely as possible. (If I missed something, please let me know!)
Frédéric Brière (fbriere@fbriere.net)
Licensed under the GNU General Public License, version 2 or later.
Thanks to Stanis Trendelenburg for braceexpand.py, which was tremendously helpful as a starting point (https://github.com/trendels/braceexpand).