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/*!
Provides completions for ripgrep's CLI for PowerShell.
*/
use crate::flags::defs::FLAGS;
const TEMPLATE: &'static str = "
using namespace System.Management.Automation
using namespace System.Management.Automation.Language
Register-ArgumentCompleter -Native -CommandName 'rg' -ScriptBlock {
param($wordToComplete, $commandAst, $cursorPosition)
$commandElements = $commandAst.CommandElements
$command = @(
'rg'
for ($i = 1; $i -lt $commandElements.Count; $i++) {
$element = $commandElements[$i]
if ($element -isnot [StringConstantExpressionAst] -or
$element.StringConstantType -ne [StringConstantType]::BareWord -or
$element.Value.StartsWith('-')) {
break
}
$element.Value
}) -join ';'
$completions = @(switch ($command) {
'rg' {
!FLAGS!
}
})
$completions.Where{ $_.CompletionText -like \"$wordToComplete*\" } |
Sort-Object -Property ListItemText
}
";
const TEMPLATE_FLAG: &'static str =
"[CompletionResult]::new('!DASH_NAME!', '!NAME!', [CompletionResultType]::ParameterName, '!DOC!')";
/// Generate completions for PowerShell.
///
/// Note that these completions are based on what was produced for ripgrep <=13
/// using Clap 2.x. Improvements on this are welcome.
pub(crate) fn generate() -> String {
let mut flags = String::new();
for (i, flag) in FLAGS.iter().enumerate() {
let doc = flag.doc_short().replace("'", "''");
let dash_name = format!("--{}", flag.name_long());
let name = flag.name_long();
if i > 0 {
flags.push('\n');
}
flags.push_str(" ");
flags.push_str(
&TEMPLATE_FLAG
.replace("!DASH_NAME!", &dash_name)
.replace("!NAME!", &name)
.replace("!DOC!", &doc),
);
if let Some(byte) = flag.name_short() {
let dash_name = format!("-{}", char::from(byte));
let name = char::from(byte).to_string();
flags.push_str("\n ");
flags.push_str(
&TEMPLATE_FLAG
.replace("!DASH_NAME!", &dash_name)
.replace("!NAME!", &name)
.replace("!DOC!", &doc),
);
}
if let Some(negated) = flag.name_negated() {
let dash_name = format!("--{}", negated);
flags.push_str("\n ");
flags.push_str(
&TEMPLATE_FLAG
.replace("!DASH_NAME!", &dash_name)
.replace("!NAME!", &negated)
.replace("!DOC!", &doc),
);
}
}
TEMPLATE.trim_start().replace("!FLAGS!", &flags)
}
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