10040bc9cd
Code like ${!#} flags the "#" as shDerefWordError [1]; the "!prefix"
syntax region delegates to one of the shDerefSpecial handlers via
@shDerefList, but it misses the "#" case as valid for ${##} and ${!#}.
[1]: https://vi.stackexchange.com/q/48617/10604
Correct that. Indirection is only valid in Bash in Ksh, so rearrange the
"!" handling to be conditional.
closes: #20016
Helped-by: Christian Brabandt <cb@256bit.org>
Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
38 lines
1.1 KiB
Bash
38 lines
1.1 KiB
Bash
#!/bin/ksh
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# Test variable modifiers
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# Variable=value
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Variable='value'
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Variable="value"
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VariableA="pat1xxpat2"
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VariableB="pat2xxpat1"
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echo ${#}
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echo ${#VariableA}
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echo ${VariableA#pat1}
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echo ${VariableA##pat1}
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echo ${VariableB%pat1}
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echo ${VariableB%%pat1}
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# This gets marked as an error
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Variable=${VariableB:+${VariableC:=eng}} # :+ seems to work for ksh as well as bash
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Variable=${VariableB:-${VariableC:-eng}} # :- is ksh and bash
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# This is OK
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Variable='${VariableB:+${VariableC:=eng}}'
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Variable='${VariableB:-${VariableC:-eng}}'
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Variable="${VariableB:+${VariableC:=eng}}" # :+ seems to work for ksh as well as bash
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Variable="${VariableB:-${VariableC:-eng}}" # :- is ksh and bash
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# These are OK
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: ${VariableB:-${VariableC:-eng}}
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: "${VariableB:-${VariableC:-eng}}"
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: '${VariableB:-${VariableC:-eng}}'
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# Another test
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Variable=${VariableB:-${VariableC:-${VariableD:-${VariableE:=eng}}}}
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: ${VariableB:=${VariableC:-${VariableD:-${VariableE:=eng}}}}
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# special variables
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echo "${!#}" # last positional argument
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echo "${!@}" # deref
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echo "${#PATH}" # length
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