In case anyone else finds this helpful. I poked around the DrRacket source and found text:get-completions/manuals. This gave me a thread to pull. After more googling, docs, and reading more source I think I can answer my own question.
The short answer is no. The long answer is sort of. If I am understanding correctly, Racket does not provide the capability to directly look up lexical scope aware completions. But, text:get-completions/manuals in framework can be used to look up a list of keywords in documented exports. That list can then be searched for an applicable completion for a partial word. Not sure why I failed to find this yesterday. https://docs.racket-lang.org/framework/Text.html?q=text%3Aget-completions%2Fmanuals#%28def._%28%28lib._framework%2Fmain..rkt%29._text~3aget-completions%2Fmanuals%29%29 Here is a quick and dirty example. There is probably a much better way to do this, but I'm still learning. I'll settle for something that just works for now. #lang racket (require framework) (filter (lambda (x) (regexp-match #px"^def" x)) (text:get-completions/manuals #f)) On Wednesday, February 7, 2018 at 5:12:00 PM UTC-6, noch...@gmail.com wrote: > > My google-fu is failing me today. Is there a concise way in Racket to > request possible completions for some Racket code? For example, in > powershell I can ask System.Management.Automation.CommandCompletion for > possible completions of the powershell code "ConvertTo-Json -" like this: > > $cmd = "ConvertTo-Json -" > $ret = > [System.Management.Automation.CommandCompletion]::MapStringInputToParsedInput($cmd, > > $cmd.Length) > > $candidates = > [System.Management.Automation.CommandCompletion]::CompleteInput( > $ret.Item1, > $ret.Item2, > $ret.Item3, > $null, > [System.Management.Automation.PowerShell]::Create() > ).CompletionMatches > > $candidates | ForEach-Object { > [pscustomobject]@{ > CompletionText = $_.CompletionText > ResultType = $_.ResultType.ToString() > ToolTip = $_.ToolTip > } > } > > Outputs (depending on system, powershell and .net version): > CompletionText ResultType ToolTip > -------------- ---------- ------- > -InputObject ParameterName [Object] InputObject > -Depth ParameterName [int] Depth > -Compress ParameterName [switch] Compress > -Verbose ParameterName [switch] Verbose > -Debug ParameterName [switch] Debug > -ErrorAction ParameterName [ActionPreference] ErrorAction > -WarningAction ParameterName [ActionPreference] WarningAction > -InformationAction ParameterName [ActionPreference] InformationAction > -ErrorVariable ParameterName [string] ErrorVariable > -WarningVariable ParameterName [string] WarningVariable > -InformationVariable ParameterName [string] InformationVariable > -OutVariable ParameterName [string] OutVariable > -OutBuffer ParameterName [int] OutBuffer > -PipelineVariable ParameterName [string] PipelineVariable > > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
