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				|  |  | -id: 'idea--thule-alternatives'
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				|  |  | -content: |
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				|  |  | -  The big alternative I know of is
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				|  |  | -  [TermKit](https://github.com/unconed/TermKit), which is an interesting
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				|  |  | -  experiment: but, to me, it's filled with far too many special cases
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				|  |  | -  and not enough nice primitives. For example, there's a special
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				|  |  | -  way of outputting a list of files (e.g. output from `ls`) but this
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				|  |  | -  isn't because "files" are necessarily a distinct thing, but because
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				|  |  | -  there's a special type of output for `ls`-like commands (in this
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				|  |  | -  case, `application/json; schema=termkit.files`, which corresponds
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				|  |  | -  to a list of filenames.)
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				|  |  | -
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				|  |  | -  Thule builds on top of this by having a standard set of building
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				|  |  | -  blocks, so that you no longer have the special-case "list of files",
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				|  |  | -  but rather primitive building blocks like `list` and `file`.
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				|  |  | -  Consider the output from `wc`: this also contains file references,
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				|  |  | -  but it additionally contains a table mapping those to values. In
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				|  |  | -  a TermKit-like setting, you'd have to come up with a new schema
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				|  |  | -  (say, `application/json; schema=termkit.wordcount`) that understands
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				|  |  | -  which parts of the output are files and which aren't. This is
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				|  |  | -  particularly tricky for `wc`, because you want to have the
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				|  |  | -  final `total` row, which does _not_ contain a file. And what if
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				|  |  | -  other tools also print table-like structures? Can those be
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				|  |  | -  processed with the same tools?
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				|  |  | -
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				|  |  | -  Thule aims to pull those low-level building blocks out, so the
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				|  |  | -  output from `ls` might give you a collection like
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				|  |  | -
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				|  |  | -      (set (file "/tmp/foo.txt") (file "/tmp/bar.c"))
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				|  |  | -
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				|  |  | -  and the output from `wc` will give you
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				|  |  | -
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				|  |  | -      (table ((text "lines") (text "words") (text "characters") (text "file"))
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				|  |  | -        ((int 10) (int 30) (int 300)  (file "/tmp/foo.txt"))
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				|  |  | -        ((int 20) (int 60) (int 900)  (file "/tmp/bar.c"))
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				|  |  | -        ((int 30) (int 90) (int 1200) (text "total")))
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				|  |  | -
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				|  |  | -  rather the structure of the collections would be a hint to the
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				|  |  | -  shell on how to display them in a rich way.
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				|  |  | -related:
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				|  |  | -  - name: idea--thule
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				|  |  | -    why: The high-level idea
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