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170bd59111
zsh completions for commands that have multiple Vec arguments require
special care.
We can have two Vec args separated with a value terminator.
We can also have two Vec args with no value terminators specified
where the final arg uses 'raw' and thus requires '--' to be used.
The 2nd of these scenarios requires special handling to avoid
emitting a duplicate '*:arguments' completion entry.
Currently, the zsh completions generate an error in this scenario:
$ my-app <TAB>
_arguments:...: doubled rest argument definition:
*::second -- second set of of multi-length arguments:
We already use the '-S' option when calling _arguments.
This option makes it so that completion stops after '--' is encountered.
This means that the handling for trailing 'raw' arguments does not need
to specified.
Special-case multi-valued arguments so that we can skip emitting
the final multi-valued argument if a previous multi-valued argument
has already been emitted.
Closes #3022
Signed-off-by: David Aguilar <davvid@gmail.com>
32 lines
1.1 KiB
PowerShell
32 lines
1.1 KiB
PowerShell
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using namespace System.Management.Automation
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using namespace System.Management.Automation.Language
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Register-ArgumentCompleter -Native -CommandName 'my-app' -ScriptBlock {
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param($wordToComplete, $commandAst, $cursorPosition)
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$commandElements = $commandAst.CommandElements
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$command = @(
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'my-app'
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for ($i = 1; $i -lt $commandElements.Count; $i++) {
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$element = $commandElements[$i]
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if ($element -isnot [StringConstantExpressionAst] -or
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$element.StringConstantType -ne [StringConstantType]::BareWord -or
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$element.Value.StartsWith('-') -or
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$element.Value -eq $wordToComplete) {
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break
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}
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$element.Value
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}) -join ';'
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$completions = @(switch ($command) {
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'my-app' {
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[CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help')
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[CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help')
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break
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}
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})
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$completions.Where{ $_.CompletionText -like "$wordToComplete*" } |
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Sort-Object -Property ListItemText
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}
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