I have a tree and I've successfully used nested ipairs loops to grab a
bunch of categories and their modules, then alphabetize them using
arrays-- first by category names, then by mod names.
If I iterate over the final ay_modtree array, which holds the branches
and leaves in the same order I want them to appear in the tree (so I
can match node id to array index for leaf execution callbacks), the
results are exactly what I want, but when I add "addbranch" and
"addleaf1" into the loops, the resulting tree appears in reverse
alphabetical order.
What is causing the reverse results and how can I fix it? Here is the code:
---------------------------------------------------------------------------------------------------
local modtree = iup.flattree{rastersize = "400x500"}
modtree["addbranch-1"] = "MODULES" --add root node
local ay_cats = {} --array to alphabetize categories
for cat in pairs(cats) do --iterate thru all mod categories
table.insert(ay_cats, cat) --assign each unique category
to the array
end
table.sort(ay_cats, function(a, b) return a:lower() < b:lower() end)
--alphabetize categories
local ay_modtree = {} --array to collect categories and mods to
populate tree in order
for i,v in ipairs(ay_cats) do --iterate thru alphabetized category array
table.insert(ay_modtree, v) --assign category to mod tree array
modtree.addbranch = v --add category as branch to mod tree
local sorter = {} --temporary array for sorting
for k,module in pairs(cats[v]) do --iterate thru each category
table.insert(sorter,module.label) --add module to
temp table
end
table.sort(sorter, function(a, b) return a:lower() < b:lower()
end) --alphabetize mods
for _,val in ipairs(sorter) do --iterate thru alphabetized mods
table.insert(ay_modtree, val) --put alphabetized mod
into mod tree table
modtree.addleaf1 = val --add mod name as leaf to mod tree
end
end
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