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d6e5b19b3d
* na-release/candidate: (31 commits) pill: change to ropsten zuse: change to ropsten pill: all u3: fix accidental neologism in comments pill: solid u3: refactors dynamic hint bytecodes, documents protocol u3: adds dynamic hint bytecodes and implementation u3: moves _n_swap() next to other stack ops u3: adds ghetto +mook replacement u3: moves |ut battery to the rightmost cache key position u3: adds |ut battery to jet cache keys pill: solid pill: solid.pill hoon: bscl to bccl, etc pill: solid hoon: modernizes syntax in the rest of |co hoon: updates @p rendering to avoid intermediate right-shifts hoon: refactors @da/@dr coin printing hoon: comments, modernizes syntax for all +*-co:co gates hoon: refactors +r-co:co, modernizing syntax ...
56 lines
1.7 KiB
Plaintext
56 lines
1.7 KiB
Plaintext
^? |%
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::
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+$ tile :: XX: ?@(knot (pair styl knot))
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::
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cord
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::
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:: A `plum` is the intermediate representation for the pretty-printer. It
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:: encodes hoon-shaped data with the least amount of structured needed
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:: for formating.
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::
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:: A `plum` is either a
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::
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:: - `cord`: A simple cord
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:: - `[%para *]`: A wrappable paragraph.
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:: - `[%tree *]`: A formatted plum tree
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:: - `[%sbrk *]`: An indication of a nested subexpression.
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::
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:: The formatter will use the tall mode unless:
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::
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:: - A plum has only a `wide` style.
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:: - The plum is in `%sbrk` form and its subplum (`kid`), when
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:: formatted in wide mode, can fit on a single line.
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::
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+$ plum
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$@ cord
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$% [%para prefix=tile lines=(list @t)]
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[%tree fmt=plumfmt kids=(list plum)]
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[%sbrk kid=plum]
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==
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::
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:: A `plumfmt` is a description of how to render a `plum`. A `plumfmt`
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:: must include a `wide`, a `tall`, or both.
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::
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:: A `wide` is a description of how to render a plum in a single
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:: line. The nested (`kids`) sub-plums will be interleaved with `delimit`
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:: strings, and, if `enclose` is set, then the output will be enclosed
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:: with `p.u.enclose` and `q.u.enclose`.
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::
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:: For example, to build a plumfmt for string literals, we could write:
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::
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:: [wide=[~ '' [~ '"' '"']] tall=~]
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::
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:: A `tall` is a description of how to render a plum across multiple
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:: lines. The output will be prefixed by `intro`, suffixed by
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:: `final.u.indef`, and each subplum prefixed by `sigil.u.indef`.
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::
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:: For example, to build a plumfmt for cores, we could write:
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::
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:: [wide=~ tall=`['' `['++' '--']]]
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::
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+$ plumfmt
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$: wide=(unit [delimit=tile enclose=(unit (pair tile tile))])
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tall=(unit [intro=tile indef=(unit [sigil=tile final=tile])])
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==
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--
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