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... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
(.require
[library
[lux (.except and)
[data
["[0]" text (.only)
["%" \\format (.only format)]]
[collection
["[0]" list (.use "[1]#[0]" functor)]]]
[meta
[type
["[0]" nominal]]]
[world
[net (.only URL)]]]])
... https://www.markdownguide.org/basic-syntax/
(def safe
(-> Text
Text)
(|>> (text.replaced "\" "\\")
(text.replaced "`" "\`")
(text.replaced "*" "\*")
(text.replaced "_" "\_")
(text.replaced "{" "\{")
(text.replaced "}" "\}")
(text.replaced "[" "\[")
(text.replaced "]" "\]")
(text.replaced "(" "\(")
(text.replaced ")" "\)")
(text.replaced "#" "\#")
(text.replaced "+" "\+")
(text.replaced "-" "\-")
(text.replaced "." "\.")
(text.replaced "!" "\!")))
(nominal.def .public Span Any)
(nominal.def .public Block Any)
(nominal.def .public (Markdown brand)
Text
(def .public empty
Markdown
(nominal.abstraction ""))
(def .public text
(-> Text
(Markdown Span))
(|>> ..safe nominal.abstraction))
(def blank_line
(format text.new_line text.new_line))
(with_template [<name> <prefix>]
[(def .public (<name> content)
(-> (Markdown Span)
(Markdown Block))
(nominal.abstraction (format <prefix> " " (nominal.representation content) ..blank_line)))]
[heading/1 "#"]
[heading/2 "##"]
[heading/3 "###"]
[heading/4 "####"]
[heading/5 "#####"]
[heading/6 "######"]
)
(def (block content)
(-> Text
(Markdown Block))
(nominal.abstraction (format content ..blank_line)))
(def .public paragraph
(-> (Markdown Span)
(Markdown Block))
(|>> nominal.representation ..block))
(def .public break
(Markdown Span)
(nominal.abstraction (format " " text.new_line)))
(with_template [<name> <wrapper>]
[(def .public <name>
(-> (Markdown Span)
(Markdown Span))
(|>> nominal.representation
(text.enclosed [<wrapper> <wrapper>])
nominal.abstraction))]
[bold "**"]
[italic "_"]
)
(def (prefix with)
(-> Text
(-> Text
Text))
(|>> (text.all_split_by text.new_line)
(list#each (function (_ line)
(if (text.empty? line)
line
(format with line))))
(text.interposed text.new_line)))
(def indent
(-> Text
Text)
(..prefix text.tab))
(def .public quote
(-> (Markdown Block)
(Markdown Block))
(|>> nominal.representation
(..prefix "> ")
nominal.abstraction))
(def .public numbered_list
(-> (List [(Markdown Span) (Maybe (Markdown Block))])
(Markdown Block))
(|>> list.enumeration
(list#each (function (_ [idx [summary detail]])
(format "1. " (nominal.representation summary)
(when detail
{.#Some detail}
(|> detail
nominal.representation
..indent
(text.enclosed [text.new_line text.new_line])
(format text.new_line))
{.#None}
""))))
(text.interposed text.new_line)
..block))
(def .public bullet_list
(-> (List [(Markdown Span) (Maybe (Markdown Block))])
(Markdown Block))
(|>> (list#each (function (_ [summary detail])
(format "* " (nominal.representation summary)
(when detail
{.#Some detail}
(|> detail
nominal.representation
..indent
(text.enclosed [text.new_line text.new_line])
(format text.new_line))
{.#None}
""))))
(text.interposed text.new_line)
..block))
... A snippet of code.
(def .public snippet
(-> Text
(Markdown Span))
(|>> (text.enclosed ["`` " " ``"]) nominal.abstraction))
... A (generic) block of code.
(def .public generic_code
(-> Text
(Markdown Block))
(let [open (format "```" text.new_line)
close (format text.new_line "```")]
(|>> (text.enclosed [open close]) ..block)))
... A block of code of a specific language.
(def .public (code language block)
(-> Text Text
(Markdown Block))
(let [open (format "```" language text.new_line)
close (format text.new_line "```")]
(|> block
(text.enclosed [open close])
..block)))
(def .public (image description url)
(-> Text URL
(Markdown Span))
(nominal.abstraction (format "![" (..safe description) "](" url ")")))
(def .public horizontal_rule
(Markdown Block)
(..block "___"))
(def .public (anchor name)
(-> Text
(Markdown Span))
(nominal.abstraction (format "<a name=" name "></a>")))
(def .public (link description url)
(-> (Markdown Span) URL
(Markdown Span))
(nominal.abstraction (format "[" (nominal.representation description) "](" url ")")))
(type .public Email
Text)
(with_template [<name> <type>]
[(def .public <name>
(-> <type>
(Markdown Span))
(|>> (text.enclosed ["<" ">"]) nominal.abstraction))]
[url URL]
[email Email]
)
(with_template [<name> <brand> <infix>]
[(def .public (<name> pre post)
(-> (Markdown <brand>) (Markdown <brand>)
(Markdown <brand>))
(nominal.abstraction (format (nominal.representation pre) <infix> (nominal.representation post))))]
[and Span " "]
[then Block ""]
)
(def .public markdown
(All (_ a)
(-> (Markdown a)
Text))
(|>> nominal.representation))
)
|
