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## oils_failures_allowed: 1
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## compare_shells: bash mksh
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# Extended globs are an OPTION in bash, but not mksh (because the feature
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# originated in ksh).
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#
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# However all extended globs are syntax errors if shopt -s extglob isn't set.
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# In Oil, they are not PARSE TIME errors, but the syntax won't be respected at
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# RUNTIME, i.e. when passed to fnmatch().
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#
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# GNU libc has the FNM_EXTMATCH extension to fnmatch(). (I don't think musl
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# libc has it.) However, this came after all popular shells were implemented!
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# I don't think any shell uses it, but we're taking advantage of it.
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#
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# Extended glob syntax is ugly, but I guess it's handy because it's similar to
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# *.[ch]... but the extensions can be different length: *.@(cc|h)
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# It's also used for negation like
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#
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# cp !(_*) /tmp
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#
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# I tend to use 'find', but this is a shorter syntax.
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# From the bash manual:
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# "In addition to the traditional globs (supported by all Bourne-family shells)
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# that we've seen so far, Bash (and Korn Shell) offers extended globs, which
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# have the expressive power of regular expressions. Korn shell enables these by
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# default; in Bash, you must run the command "
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# ?(pattern-list): Matches empty or one of the patterns
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# *(pattern-list): Matches empty or any number of occurrences of the patterns
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# +(pattern-list): Matches at least one occurrences of the patterns
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# @(pattern-list): Matches exactly one of the patterns
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# !(pattern-list): Matches anything EXCEPT any of the patterns
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shopt -s extglob
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mkdir -p 0
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cd 0
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touch {foo,bar}.cc {foo,bar,baz}.h
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echo @(*.cc|*.h)
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## stdout: bar.cc bar.h baz.h foo.cc foo.h
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shopt -s extglob
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mkdir -p 1
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cd 1
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touch {foo,bar}.cc {foo,bar,baz}.h foo. foo.hh
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ext=cc
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echo foo.?($ext|h)
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## stdout: foo. foo.cc foo.h
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shopt -s extglob
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mkdir -p eg1
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touch eg1/_ eg1/_One eg1/_OneOne eg1/_TwoTwo eg1/_OneTwo
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echo eg1/_*(One|Two)
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## stdout: eg1/_ eg1/_One eg1/_OneOne eg1/_OneTwo eg1/_TwoTwo
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shopt -s extglob
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mkdir -p eg2
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touch eg2/_ eg2/_One eg2/_OneOne eg2/_TwoTwo eg2/_OneTwo
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echo eg2/_+(One|$(echo Two))
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## stdout: eg2/_One eg2/_OneOne eg2/_OneTwo eg2/_TwoTwo
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shopt -s extglob
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mkdir -p extglob2
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touch extglob2/{foo,bar}.cc extglob2/{foo,bar,baz}.h \
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extglob2/{foo,bar,baz}.py
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echo extglob2/!(*.h|*.cc)
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## stdout: extglob2/bar.py extglob2/baz.py extglob2/foo.py
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shopt -s extglob
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mkdir -p 2
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touch 2/{aa,ab,ac,ba,bb,bc,ca,cb,cc}
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echo 2/!(b)@(b|c)
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echo 2/!(b)?@(b|c) # wildcard in between
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echo 2/!(b)a@(b|c) # constant in between
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## STDOUT:
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2/ab 2/ac 2/cb 2/cc
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2/ab 2/ac 2/bb 2/bc 2/cb 2/cc
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2/ab 2/ac
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## END
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shopt -s extglob
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mkdir -p eg6
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touch eg6/{ab,ac,ad,az,bc,bd}
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echo eg6/a@(!(c|d))
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echo eg6/a!(@(ab|b*))
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## STDOUT:
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eg6/ab eg6/az
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eg6/ac eg6/ad eg6/az
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## END
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shopt -s extglob
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mkdir -p eg4
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touch eg4/a 'eg4/a b' eg4/foo
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argv.py eg4/@(a b|foo)
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## STDOUT:
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['eg4/a b', 'eg4/foo']
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## END
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shopt -s extglob
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mkdir -p eg5
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touch eg5/'a b'{cd,de,ef}
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argv.py eg5/'a '@(bcd|bde|zzz)
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## STDOUT:
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['eg5/a bcd', 'eg5/a bde']
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## END
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shopt -s extglob
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mkdir eg6
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argv.py eg6/@(no|matches) # no matches
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shopt -s nullglob # test this too
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argv.py eg6/@(no|matches) # no matches
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## STDOUT:
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['eg6/@(no|matches)']
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[]
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## END
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## BUG mksh STDOUT:
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['eg6/@(no|matches)']
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['eg6/@(no|matches)']
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## END
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shopt -s extglob
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mkdir -p eg5
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cd eg5
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touch __{aa,'<>','{}','#','&&'}
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argv.py @(__aa|'__<>'|__{}|__#|__&&|)
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# mksh sorts them differently
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## STDOUT:
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['__#', '__&&', '__<>', '__aa', '__{}']
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## END
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shopt -s extglob
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mkdir -p eg7
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cd eg7
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touch '_[:]' '_*' '_?'
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argv.py @('_[:]'|'_*'|'_?')
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argv.py @(nested|'_?'|@('_[:]'|'_*'))
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# mksh sorts them differently
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## STDOUT:
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['_*', '_?', '_[:]']
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['_*', '_?', '_[:]']
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## END
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shopt -s extglob
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mkdir -p extpipe
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cd extpipe
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touch '__|' foo
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argv.py @('foo'|__\||bar)
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argv.py @('foo'|'__|'|bar)
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## STDOUT:
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['__|', 'foo']
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['__|', 'foo']
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## END
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# This case popped into my mind after inspecting osh/word_eval.py for calls to
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# _EvalWordToParts()
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shopt -s extglob
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mkdir -p eg8
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cd eg8
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touch {foo,bar,spam}.py
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# regular glob
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echo ${undef:-*.py}
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# extended glob
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echo ${undef:-@(foo|bar).py}
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## STDOUT:
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bar.py foo.py spam.py
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bar.py foo.py
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## END
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## OK mksh STDOUT:
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bar.py foo.py spam.py
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@(foo|bar).py
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## END
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## OK osh status: 1
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## OK osh STDOUT:
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bar.py foo.py spam.py
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## END
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# Another invocation of _EvalWordToParts() that OSH should handle
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shopt -s extglob
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mkdir -p eg9
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cd eg9
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touch {foo,bar}.py
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typeset -@(*.py) myvar
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echo status=$?
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## STDOUT:
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status=2
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## END
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## OK mksh STDOUT:
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status=1
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## END
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## OK osh status: 1
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## OK osh STDOUT:
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## END
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shopt -s extglob
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mkdir -p eg10
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cd eg10
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touch {'a b c',bee,cee}.{py,cc}
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set -- 'a b' 'c'
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argv.py "$@"
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# This works!
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argv.py star glob "$*"*.py
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argv.py star extglob "$*"*@(.py|cc)
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# Hm this actually still works! the first two parts are literal. And then
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# there's something like the simple_word_eval algorithm on the rest. Gah.
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argv.py at extglob "$@"*@(.py|cc)
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## STDOUT:
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['a b', 'c']
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['star', 'glob', 'a b c.py']
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['star', 'extglob', 'a b c.cc', 'a b c.py']
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['at', 'extglob', 'a b', 'cee.cc', 'cee.py']
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## END
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## N-I osh STDOUT:
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['a b', 'c']
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['star', 'glob', 'a b c.py']
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['star', 'extglob', 'a b c.cc', 'a b c.py']
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## END
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## N-I osh status: 1
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shopt -s extglob
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mkdir -p 3
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cd 3
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x='a b'
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touch bar.{cc,h}
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# OSH may disallow splitting when there's an extended glob
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argv.py $x*.@(cc|h)
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## STDOUT:
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['a', 'bar.cc', 'bar.h']
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## END
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## N-I osh STDOUT:
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['a b*.@(cc|h)']
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## END
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shopt -s extglob
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mkdir -p eg11
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cd eg11
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touch {foo,bar,spam}.py
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for x in @(fo*|bar).py; do
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echo $x
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done
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echo ---
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declare -a A
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A=(zzz @(fo*|bar).py)
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echo "${A[@]}"
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## STDOUT:
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bar.py
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foo.py
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---
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zzz bar.py foo.py
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## END
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shopt -s oil:all
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shopt -s extglob
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mkdir -p eg12
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cd eg12
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touch {foo,bar,spam}.py
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builtin write -- x@(fo*|bar).py
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builtin write -- @(fo*|bar).py
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## status: 1
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## STDOUT:
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## END
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shopt -s extglob
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echo @(__nope__)
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# OSH has glob quoting here
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echo @(__nope__*|__nope__?|'*'|'?'|'[:alpha:]'|'|')
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if test $SH != osh; then
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exit
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fi
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# OSH has this alias for @()
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echo ,(osh|style)
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## STDOUT:
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@(__nope__)
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@(__nope__*|__nope__?|*|?|[:alpha:]||)
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## END
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shopt -s extglob
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mkdir -p opts
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cd opts
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touch -- foo bar -dash
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echo @(*)
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shopt -u dashglob
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echo @(*)
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## STDOUT:
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-dash bar foo
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bar foo
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## END
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## N-I bash/mksh STDOUT:
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-dash bar foo
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-dash bar foo
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## END
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shopt -s extglob
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mkdir -p _noglob
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cd _noglob
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set -o noglob
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echo @(*)
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echo @(__nope__*|__nope__?|'*'|'?'|'[:alpha:]'|'|')
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## STDOUT:
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@(*)
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@(__nope__*|__nope__?|*|?|[:alpha:]||)
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## END
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shopt -s extglob
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rm -f _failglob/*
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mkdir -p _failglob
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cd _failglob
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shopt -s failglob
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echo @(*)
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echo status=$?
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touch foo
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echo @(*)
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echo status=$?
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## STDOUT:
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status=1
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foo
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status=0
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## END
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## N-I mksh STDOUT:
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@(*)
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status=0
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foo
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status=0
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## END
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