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#
Message

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pub(all) enum Message {
  Empty
  Words(String)
  Atom(
Style, Bool, String)
  Raw((
Printer, 
Theme) -> Unit)
  Seq(Message, Message)
  Sep(Message, Message)
  Group(Message)
}

A diagnostic message.

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Message::sep

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fn Message::sep(self : Message, b : Message) -> Message

Juxtapose with a soft (wrap-point) space between.

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Message::seq

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fn Message::seq(self : Message, b : Message) -> Message

Juxtapose with no space between.

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bool_

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fn bool_(b : Bool) -> Message

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code

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fn code(s : String) -> Message

An emphasized inline code token -- an instruction, an operator, a literal.

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concat

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fn concat(l : Array[Message]) -> Message

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enumerate

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fn enumerate(items : Array[Message], conj? : String) -> Message

"a, b or c" -- commas, with conj before the last item.

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group

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fn group(m : Message) -> Message

Lay out as a keep-together box.

Used to wrap a rendered type so it does not reflow word by word.

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ident

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fn ident(s : String) -> Message

An emphasized source identifier.

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int

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fn int(n : Int) -> Message

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int64

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fn int64(n : Int64) -> Message

Emit s in the theme's colour for style, counting only its display width.

The escape sequences go through string_as 0 so they occupy no columns, and the text itself is measured by TERMINAL width rather than character count -- a wide glyph takes two columns.

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raw

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Run an imperative callback against the render-time printer and theme.

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render

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Emit m into p as a greedy fill box, so prose reflows at the enclosing layout's width.

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styled

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fn styled(style : 
Style, s : String) -> Message

One unbreakable styled atom, never quoted.

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text

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fn text(s : String) -> Message

Prose.

Splits on spaces into words joined by soft breaks, so it reflows at the render width; an embedded newline is a hard break.

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to_plain_string

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fn to_plain_string(m : Message) -> String

Render flat and ANSI-free, for the JSON and short output formats.

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type_

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fn type_(s : String) -> Message

An emphasized type name given as a string.

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uint64

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fn uint64(n : Int64) -> Message

n as an UNSIGNED 64-bit integer, so a value with the high bit set prints as its magnitude rather than as a negative number.

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