Function isPowerShellParameter

src/utils/powershell/parser.ts:1647–1655

(
  arg: string,
  elementType?: CommandElementType,
)

 * to a char check against PS_TOKENIZER_DASH_CHARS.
 */
export function isPowerShellParameter(
  arg: string,
  elementType?: CommandElementType,
): boolean {
  if (elementType !== undefined) {
    return elementType === 'Parameter'
  }
  return arg.length > 0 && PS_TOKENIZER_DASH_CHARS.has(arg[0]!)
}

/**
 * Check if any argument on a command is an unambiguous abbreviation of a PowerShell parameter.