fish-shell/tests/expansion.out

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1 prefix
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1 
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1 prefix
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1 
1 
1 prefix
1 prefix
1 
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1 prefix
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1 prefix
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1 baz
1 baz
1 prefixbaz
1 prefixbaz
1 baz quux
2 baz quux
1 prefixbaz quux
2 prefixbaz prefixquux
1 baz quux fooer fooest
2 baz quux
1 prefixbaz quux fooer fooest
2 prefixbaz prefixquux
3 baz quux 
3 prefixbaz prefixquux prefix
1 baz quux  fooest
2 baz quux
1 prefixbaz quux  fooest
2 prefixbaz prefixquux
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Fix double expansions (`$$foo`) Double expansions of variables had the following issues: * `"$$foo"` threw an error no matter what the value of `$foo` was. * `set -l foo ''; echo $$foo` threw an error because of the expansion of `$foo` to `''`. With this change, double expansion always works properly. When double-expanding a multi-valued variable, in a double-quoted string the first word of the inner expansion is used for the outer expansion, and outside of a quoted string every word is used for the double-expansion in each of the arguments. > set -l foo bar baz > set -l bar one two > set -l baz three four > echo "$$foo" one two baz > echo $$foo one two three four 2014-08-21 04:19:08 +00:00			`1`
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			`1 prefix`
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			`1`
			`0`
			`1 prefix`
			`0`
			`1`
			`1`
			`1 prefix`
			`1 prefix`
			`1`
			`0`
			`1 prefix`
			`0`
			`1`
			`0`
			`1 prefix`
			`0`
			`1 baz`
			`1 baz`
			`1 prefixbaz`
			`1 prefixbaz`
			`1 baz quux`
			`2 baz quux`
			`1 prefixbaz quux`
			`2 prefixbaz prefixquux`
			`1 baz quux fooer fooest`
			`2 baz quux`
			`1 prefixbaz quux fooer fooest`
			`2 prefixbaz prefixquux`
			`3 baz quux`
			`3 prefixbaz prefixquux prefix`
			`1 baz quux fooest`
			`2 baz quux`
			`1 prefixbaz quux fooest`
			`2 prefixbaz prefixquux`
Parse slices even for empty variables When a variable is parsed as being empty, parse out the slice and validate the indexes anyway, behaving for slicing purposes as if the variable had a single empty value. Besides providing errors when expected, this also fixes the following: set -l foo echo "$foo[1]" This used to print "[1]", now it properly prints nothing. 2014-08-21 05:01:24 +00:00			`1`
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