Display an outline as a nested table: Difference between revisions
Display an outline as a nested table (view source)
Revision as of 22:20, 5 September 2021
, 2 years ago→{{header|Haskell}}
(→{{header|Haskell}}: Added a draft in Haskell) |
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Line 512:
import Data.List (find, intercalate)
import Data.Tree (Tree (..), foldTree, levels)
---------------- NESTED TABLE FROM OUTLINE ---------------
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. (paddedTree [] =<< treeDepth)
. treeFromOutline
--------------------------- TEST -------------------------
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\ either as a wiki table,\n\
\ or as HTML."
------------- TREE STRUCTURE FROM NESTED TEXT ------------
treeFromOutline :: String -> Tree String
treeFromOutline
head
. forestFromLineIndents
. indentLevelsFromLines
forestFromLineIndents :: [(Int, String)] -> [Tree String]
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indentUnit = maybe 1 fst (find ((0 <) . fst) pairs)
in first (`div` indentUnit) <$> pairs
---------------- TREE PADDED TO EVEN DEPTH ---------------
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go _ [] = 1
go _ xs = (succ . maximum) xs
----------------- SUBTREE WIDTHS MEASURED ----------------
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(x, foldr ((+) . snd . rootLabel) 0 xs)
xs
------------------- COLOR SWATCH APPLIED -----------------
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(subForest tree)
)
-------------------- WIKITABLE RENDERED ------------------
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cellText (color, (txt, width))
| null txt = "| |"
| otherwise =
"| "
<> cw color width
<> "| "
<> txt
cw color width =
let go w
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<> "style=\"text-align: center;\"\n|-\n"
<> intercalate "|-\n" (wikiRow <$> rows)
<> "|}"</lang>
{{Out}}
{| class="wikitable" style="text-align: center;"
| |||