mirror of https://git.sr.ht/~rabbits/uxn
75 lines
2.5 KiB
Plaintext
75 lines
2.5 KiB
Plaintext
--
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-- Asma tree helper script
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--
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-- This script balances the trees at the end of projects/library/asma.tal.
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--
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-- To run, you need Lua or LuaJIT, and just run etc/asma.lua from the top
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-- directory of Uxn's git repository:
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--
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-- lua etc/asma.lua
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--
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-- This file is written in MoonScript, which is a language that compiles to
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-- Lua, the same way as e.g. CoffeeScript compiles to JavaScript. Since
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-- installing MoonScript has more dependencies than Lua, the compiled
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-- etc/asma.lua is kept in Uxn's repository and will be kept updated as this
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-- file changes.
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--
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output = assert io.open '.asma.tal', 'w'
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process_subtree = (items) ->
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middle = math.floor #items / 2 + 1.25
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node = items[middle]
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if not node
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return
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node.left = process_subtree [ item for i, item in ipairs items when i < middle ]
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node.right = process_subtree [ item for i, item in ipairs items when i > middle ]
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node
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process_tree = (items) ->
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sorted_items = [ item for item in *items ]
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table.sort sorted_items, (a, b) -> a.order < b.order
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(process_subtree sorted_items).label = '&_entry'
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for item in *items
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output\write '\t%-11s %-10s %-12s %s%s\n'\format item.label, item.left and item.left.ref or ' $2', (item.right and item.right.ref or ' $2') .. item.extra, item.key, item.rest
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parse_tree = (it) ->
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items = {}
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for l in it
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if l == ''
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process_tree items
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output\write '\n'
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return
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item = { extra: '' }
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item.key, item.rest = l\match '^%s*%S+%s+%S+%s+%S+%s+(%S+)(.*)'
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if item.key\match '^%&'
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item.extra = ' %s'\format item.key
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item.key, item.rest = item.rest\match '^%s+(%S+)(.*)'
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if item.key\match '^%"'
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item.order = item.key\sub 2
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elseif item.key\match '^%x%x'
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item.order = string.char tonumber item.key, 16
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else
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error 'unknown key: %q'\format item.key
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if item.order\match '^%a'
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item.label = '&%s'\format item.order
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elseif item.order\match '^.$'
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item.label = '&%x'\format item.order\byte!
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else
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error 'unknown label: %q'\format item.order
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item.ref = ':%s'\format item.label
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table.insert items, item
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it = assert io.lines 'projects/library/asma.tal'
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waiting_for_cut = true
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for l in it
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output\write l
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output\write '\n'
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if l\find '--- cut here ---', 1, true
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waiting_for_cut = false
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if not waiting_for_cut and '@' == l\sub 1, 1
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parse_tree it
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output\close!
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os.execute 'mv .asma.tal projects/library/asma.tal'
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