SDK: Get a list of childless keywords

New Here ,
Oct 23, 2021 Oct 23, 2021

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SDK: My keywords are organized in a hierarchy. Now I want to create a table with the names of all leaf keywords, i.e. keywords without children, end nodes. I understand that I need to call catalog:getKeywords() to get all top-level keywords and then use lrKeyword:getChildren() recursively to get my leaf keywords. However, for some reason recursivity turns my brain to jelly. The recursive function I'm looking for is probably no more than 4 or 5 lines long, but I just can't get it right. Is there a kind soul out there who can help me out?

Also, I'm a bit worried about how to do this once I have that function. The function will have to use startAsyncTask in order to use catalog:getKeywords() and lrKeyword:getChildren(), so how can I be sure that the list of leaf keywords returned by the recursive function is actually available when I want to use if in the calling script?

 

 

 

 

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correct answers 2 Correct answers

LEGEND , Oct 24, 2021 Oct 24, 2021
Here's a function that returns an array of all the lef keywords:local function findLeafKeywords () local leafKeywords = {} local function find (keyword) if #keyword:getChildren () == 0 then table.insert (leafKeywords, keyword) else for _, child in ipairs (keyword:getChildren ()) do find (child) end end end for _, keyword in ipairs (catalog:getKeywords ()) do find (keyword) end return le...

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LEGEND , Oct 24, 2021 Oct 24, 2021
"Is there a way to set the focus to the edit control of  my choice? I can't find any mention of this in the API docs." Unfortunately note.

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LEGEND ,
Oct 24, 2021 Oct 24, 2021

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Here's a function that returns an array of all the lef keywords:

local function findLeafKeywords ()
    local leafKeywords = {}

    local function find (keyword)
        if #keyword:getChildren () == 0 then
            table.insert (leafKeywords, keyword)
        else
            for _, child in ipairs (keyword:getChildren ()) do
                find (child) 
                end
            end
        end

    for _, keyword in ipairs (catalog:getKeywords ()) do find (keyword) end
    return leafKeywords
    end

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New Here ,
Oct 24, 2021 Oct 24, 2021

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You are the best!

Recursivity really messes with my mind. Even with your code right in front of me I have difficulty in wrapping my mind around it 😉

Anyway, it all works and i'm happy.

Thank you!

 

By the way, I have a dialog box with 9 edit controls (the leaf keyword names actually serve as the edit controls' "completion" property for autocompletion). Is there a way to set the focus to the edit control of  my choice? I can't find any mention of this in the API docs.

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LEGEND ,
Oct 24, 2021 Oct 24, 2021

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"The function will have to use startAsyncTask in order to use catalog:getKeywords() and lrKeyword:getChildren(), so how can I be sure that the list of leaf keywords returned by the recursive function is actually available when I want to use if in the calling script?"

 

Invoke the main function of the script from startAsyncTask() -- then everything it does will be done serially in that separate task, and you won't have to worry about multiple tasks trying to synchronize.

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LEGEND ,
Oct 24, 2021 Oct 24, 2021

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"Is there a way to set the focus to the edit control of  my choice? I can't find any mention of this in the API docs."

 

Unfortunately note.

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New Here ,
Oct 24, 2021 Oct 24, 2021

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Thanks again. I'm beginning to see what's possible and whar's not in this API. O hope you don't mind all the questions.

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