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f9427909dc
This is some nonsense: redirections that store a file descriptor
greater than 9 in a variable, like {var}<&2 and the like, stopped
working if brace expansion was turned off. '{var}' is not a brace
expansion as it doesn't contain ',' or '..'; something like 'echo
{var}' is always output unexpanded. And redirections and brace
expansion are two completely unrelated things. It wasn't documented
that these redirections require the -B/braceexpand option, either.
src/cmd/ksh93/sh/lex.c: sh_lex():
- Remove incorrect check for braceexpand option before processing
redirections of this form.
src/cmd/ksh93/COMPATIBILITY:
- Insert a brief item mentioning this.
src/cmd/ksh93/sh.1:
- Correction: these redirections do not yield a file descriptor >
10, but > 9, a.k.a. >= 10.
- Add a brief example showing how these redirections can be used.
src/cmd/ksh93/tests/io.sh:
- Add a quick regression test.
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