Content types etc.

try/sys/hoon/ref/gate.hoon

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+|=  rem=spur
+~&  [%html rem]
+,@

try/sys/html/ref/gate.hoon

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+|=  *
+,@

try/sys/html/tan/mime/gate.hoon

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+|=  *
+|=  htm=@
+[/text/html (met 3 htm) htm]

try/sys/md/ref/gate.hoon

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+|=(* ,@)

try/sys/md/tan/html/gate.hoon

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+!:
+|=  *
+=>  %=    .
+        +
+      =>  +
+      =>
+        |%
+        ++  down
+          $&  [p=down q=down]
+          $%  [%$ p=tape]
+              [%code p=tape]
+              [%inco p=tape]
+              [%head p=haxe q=down]
+              [%link p=tape q=tape r=(unit tape)]
+              [%lord p=(list down)]
+              [%lund p=(list down)]
+              [%parg p=down]
+              [%quot p=down]
+              [%rong p=down]
+              [%emph p=down]
+              [%hrul ~]
+              [%html p=tape]
+          ==
+        ++  haxe
+          |=  a=*
+          ?@  a
+            ?:(&(!=(0 a) (lth a 6)) a 6)
+          6
+        --
+      |%
+      ++  cott
+        ;~  pose
+          (shim 0 8)
+          (shim 11 37)
+          (shim 39 59)
+          (just `@`61)
+          (shim 63 95)
+          (shim 97 255)
+        ==
+      ++  copt
+        ;~  pose
+          (shim 0 9)
+          (shim 11 37)
+          (shim 39 39)
+          (shim 43 59)
+          (just `@`61)
+          (shim 63 90)
+          (shim 94 94)
+          (shim 97 255)
+        ==
+      ++  urlc  ;~(pose (shim 0 9) (shim 11 31) (shim 33 39) (shim 42 255))
+      ++  uctt  ;~(pose (shim 0 9) (shim 11 91) (shim 94 255))
+      ++  uctc  ;~(pose (shim 0 9) (shim 11 33) (shim 35 39) (shim 42 255))
+      ++  htmc  ;~(pose (shim 0 9) (shim 11 255))
+      ++  escp  (mask "\\`*_\{}[]()#+-.!")
+      ++  escd  ;~(pfix bas escp)
+      ++  whit  (mask (tape 9 32 ~))
+      ++  dent  ;~(pose (jest '    ') (just `@`9))
+      ++  blan  (cold ~ ;~(plug (star whit) (just `@`10)))
+      ++  mcat  (bend |=([a=tape b=tape] (some (weld a b))))
+      ++  wcat  |*(a=_rule (cook |=([a=tape b=tape] (weld a b)) a))
+      ++  codt
+        %+  knee  *tape  |.  ~+
+        ;~  pose
+          (wcat ;~(plug (plus cott) codt))
+          (cook |=(a=tape (weld "<" a)) ;~(pfix gal ;~(pose codt (easy ~))))
+          (cook |=(a=tape (weld ">" a)) ;~(pfix gar ;~(pose codt (easy ~))))
+          (cook |=(a=tape (weld "&" a)) ;~(pfix pam ;~(pose codt (easy ~))))
+          (plus cott)
+        ==
+      ++  inlt
+        %+  knee  *tape  |.  ~+
+        ;~  pose
+          ;~(mcat (plus copt) inlt)
+          ;~(mcat (plus escd) inlt)
+          ;~  mcat
+            %-  wcat
+              ;~  plug
+                ;~(plug gal (cook trip inle))
+                ;~(sfix (wcat ;~(plug (star copt) (easy ">"))) gar)
+              ==
+            inlt
+          ==
+          ;~  mcat
+            %-  wcat
+              ;~  plug
+                ;~(plug gal fas (cook trip inle))
+                ;~(sfix (wcat ;~(plug (star copt) (easy ">"))) gar)
+              ==
+            inlt
+          ==
+          ;~  mcat
+            (wcat ;~(plug ;~(plug pam hax ;~(sfix (plus nud) sem)) (easy ";")))
+            inlt
+          ==
+          ;~  mcat
+            (wcat ;~(plug ;~(plug pam ;~(sfix (plus alf) sem)) (easy ";")))
+            inlt
+          ==
+          (cook |=(a=tape (weld "<" a)) ;~(pfix gal ;~(pose inlt (easy ~))))
+          (cook |=(a=tape (weld ">" a)) ;~(pfix gar ;~(pose inlt (easy ~))))
+          (cook |=(a=tape (weld "&" a)) ;~(pfix pam ;~(pose inlt (easy ~))))
+        ==
+      ++  kite
+        |=  bud=(list ,@t)
+        |=  tub=nail
+        |-  ^-  (like ,@t)
+        ?@  bud
+          (fail tub)
+        =+  foo=((jest i.bud) tub)
+        ?~  q.foo
+          $(bud t.bud)
+        foo
+      ++  bloc
+        %+  knee  *@t  |.  ~+
+        %-  kite
+          :~  '<address>'  '<article>'  '<aside>'  '<audio>'  '<blockquote>'
+              '<canvas>'  '<dd>'  '<div>'  '<dl>'  '<fieldset>'  '<figcaption>'
+              '<figure>'  '<footer>'  '<form>'  '<h1>'  '<h2>'  '<h3>'  '<h4>'
+              '<h5>'  '<h6>'  '<header>'  '<hgroup>'  '<hr>'  '<noscript>'
+              '<ol>'  '<output>'  '<p>'  '<pre>'  '<section>'  '<table>'
+              '<tfoot>'  '<ul>'  '<video>'  '<style>'
+          ==
+      ++  inle
+        %+  knee  *@t  |.  ~+
+        %-  kite
+          :~  'b'  'big'  'i'  'small'  'tt'  'abbr'  'acronym'
+              'cite'  'code'  'dfn'  'em'  'kbd'  'strong'  'samp'
+              'var'  'a'  'bdo'  'br'  'img'  'map'  'object'  'q'
+              'script'  'span'  'sub'  'sup'  'button'  'input'
+              'label'  'select'  'textarea'  'link'
+          ==
+      ++  htmb
+        %+  knee  *tape  |.  ~+
+        %+  cook  |=(a=(list tape) (reel a |=([p=tape q=tape] (weld p q))))
+        (plus (cook |=(a=tape (weld a "\0a")) ;~(sfix (plus htmc) (just '\0a'))))
+      ++  blok
+        %+  knee  *tape  |.  ~+
+        %+  cook  |=(a=[tape tape] (weld a))
+        ;~(plug (cook trip bloc) ;~(plug (just '\0a') htmb))
+      ++  intt
+        %+  knee  *down  |.  ~+
+        ;~  pose
+          (ifix [(jest '**') (jest '**')] (stag %rong intt))
+          (ifix [(jest '__') (jest '__')] (stag %rong intt))
+          (ifix [tar tar] (stag %emph intt))
+          (ifix [cab cab] (stag %emph intt))
+          (ifix [tec tec] (stag %inco codt))
+          (stag %$ inlt)
+          link
+          (stag %$ ;~(plug tar (easy ~)))
+          (stag %$ ;~(plug cab (easy ~)))
+          (stag %$ ;~(plug pel (easy ~)))
+          (stag %$ ;~(plug per (easy ~)))
+          (stag %$ ;~(plug sel (easy ~)))
+          (stag %$ ;~(plug ser (easy ~)))
+        ==
+      ++  inli
+        |=  tub=nail
+        ^-  (like down)
+        ?~  q.tub
+          (fail tub)
+        ?:  |(=(i.q.tub 10) =(i.q.tub '>'))
+          (fail tub)
+        =+  ^=  foo
+          ;~  pose
+            dent
+            ;~(plug (mask "+*-") (plus whit))
+            ;~(plug dim:ag dot (plus whit))
+          ==
+        =+  bar=(foo tub)
+        ?~  q.bar
+          %-
+          %+  cook  |=(a=(list down) (reel a |=([p=down q=down] [p q])))
+          ;~(sfix (plus intt) (just `@`10))
+          tub
+        (fail tub)
+      ++  parg
+        |=  [a=@ b=@]
+        %+  knee  *down  |.  ~+
+        ;~  plug
+          inli
+          %+  cook  |=(a=(list down) (reel a |=([p=down q=down] [p q])))
+            (plus ;~(plug (easy [%$ "\0a"]) (colk a b inli)))
+        ==
+      ++  link
+        %+  knee  *down  |.  ~+
+        %+  stag  %link
+        ;~  plug
+          (ifix [sel ser] (plus ;~(pose uctt escd)))
+          ;~(pfix pel (star ;~(pose urlc escd)))
+          ;~  pose
+            %+  cook  |=(a=tape (some a))
+              (ifix [ace per] (ifix [doq doq] (plus ;~(pose uctc escd))))
+            (cold ~ per)
+          ==
+        ==
+      ++  barg
+        |=  a=@
+        %+  knee  *haxe  |.  ~+
+        ;~  pfix  (stun [a a] (jest '> '))
+        ;~  pose
+          (cold 1 ;~(plug (plus tis) (star whit) (just `@`10)))
+          (cold 2 ;~(plug (plus hep) (star whit) (just `@`10)))
+        ==
+        ==
+      ++  neck
+        %+  knee  *[haxe down]  |.  ~+
+        ;~  pose
+          ;~(pfix (jest '######') (stag 6 ;~(pfix (star whit) inli)))
+          ;~(pfix (jest '#####') (stag 5 ;~(pfix (star whit) inli)))
+          ;~(pfix (jest '####') (stag 4 ;~(pfix (star whit) inli)))
+          ;~(pfix (jest '###') (stag 3 ;~(pfix (star whit) inli)))
+          ;~(pfix (jest '##') (stag 2 ;~(pfix (star whit) inli)))
+          ;~(pfix (jest '#') (stag 1 ;~(pfix (star whit) inli)))
+        ==
+      ++  mark
+        |=  p=tape
+        (scan p park)
+      ++  hrul
+        %+  knee  *down  |.  ~+
+        %+  sear
+          |=(a=(list tape) ?:((gte (lent (zing a)) 3) (some [%hrul ~]) ~))
+          ;~  sfix
+            (more (star whit) ;~(pose (plus cab) (plus tar) (plus hep)))
+            (just `@`10)
+          ==
+      ++  colk
+        |*  [a=@ b=@ fel=_rule]
+        ;~(pfix (stun [a a] (jest '> ')) (stun [b b] dent) fel)
+      ++  code
+        |=  [a=@ b=@]
+        %+  knee  *tape  |.  ~+
+        %+  cook  weld
+        ;~  plug
+          (ifix [dent (just '\0a')] codt)
+          %+  cook  |=(a=(list tape) (reel a |=([p=tape q=tape] (weld p q))))
+          %-  star
+          ;~(plug (easy '\0a') (colk a b (ifix [dent (just '\0a')] codt)))
+        ==
+      ++  lelm
+        |=  [a=@ b=@]
+        %+  knee  *down  |.  ~+
+        ;~  pose
+          inli
+          hrul
+          ;~(pfix (just `@`10) (lmel a b))
+        ==
+      ++  lmel
+        |=  [a=@ b=@]
+        %+  knee  *down  |.  ~+
+        ;~  pose
+          ;~((bend) (stag %lund (plus (lulm a b))) (lmel a b))
+          ;~((bend) (stag %lord (plus (lolm a b))) (lmel a b))
+          ;~((bend) (stag %code (colk a b (code a b))) (lmel a b))
+          ;~((bend) (stag %head (colk a b neck)) (lmel a b))
+          ;~((bend) (stag %parg (colk a b (parg a b))) (lmel a b))
+          (colk a b inli)
+          (colk a b hrul)
+          ;~(pfix (plus (colk a b blan)) (lmel a b))
+        ==
+      ++  lulm
+        |=  [a=@ b=@]
+        %+  knee  *down  |.  ~+
+        (colk a b ;~(pfix (mask "+*-") (plus whit) (lelm a +(b))))
+      ++  lolm
+        |=  [a=@ b=@]
+        %+  knee  *down  |.  ~+
+        (colk a b ;~(pfix dim:ag dot (plus whit) (lelm a +(b))))
+      ++  bark
+        |=  a=@
+        %+  knee  *down  |.  ~+
+        ;~  pose
+          (stag %html blok)
+          (stag %lund (plus (lulm a 0)))
+          (stag %lord (plus (lolm a 0)))
+          (stag %code (colk a 0 (code a 0)))
+          (stag %head (colk a 0 neck))
+          %+  cook  |=([a=down b=haxe] [%head b a])
+            (colk a 0 ;~(plug inli (barg a)))
+          (colk a 0 hrul)
+          (stag %parg (colk a 0 (parg a 0)))
+          (colk a 0 inli)
+          (cold [%$ ""] (colk a 0 (plus blan)))
+        ==
+      ++  dark
+        |=  a=@
+        %+  knee  *down  |.  ~+
+        |=  tub=nail
+        ^-  (like down)
+        =+  vex=((cook lent (star (jest '> '))) tub)
+        ?~  q.vex
+          vex
+        ?:  (lth p.u.q.vex a)
+          (fail tub)
+        ?:  (gth p.u.q.vex a)
+          (;~((bend) (stag %quot (dark +(a))) (dark a)) tub)
+        (;~((bend) (bark a) (dark a)) tub)
+      ++  park
+        %+  knee  *down  |.  ~+
+        %+  cook  |=(a=(list down) (reel a |=([p=down q=down] [p q])))
+          ;~(sfix (plus (dark 0)) (star blan))
+      ++  appd
+        |=  [p=@ q=@]
+        ^-  @
+        (cat 3 p q)
+      ++  wtag
+        |=  [a=@ b=@]
+        ^-  @
+        :(appd '<' a '>' b '</' a '>')
+      ++  sett
+        |=  [a=@ b=tape]
+        ^-  @
+        :(appd a '="' (rap 3 b) '"')
+      ++  hark
+        |=  a=down
+        ^-  @
+        ?-  a
+          [%$ *]  (rap 3 p.a)
+          [%code *]  (wtag 'pre' (wtag 'code' (rap 3 p.a)))
+          [%inco *]  (wtag 'code' (rap 3 p.a))
+          [%head *]  (wtag (cat 3 'h' (add '0' p.a)) (hark q.a))
+          [%link *]
+            ?~  r.a
+              :(appd '<a ' (sett 'href' q.a) '>' (rap 3 p.a) '</a>')
+              :(appd '<a ' (sett 'href' q.a) ' ' (sett 'title' u.r.a) '>' (rap 3 p.a) '</a>')
+          [%lord *]  (wtag 'ol' (reel (turn p.a |=(a=down (wtag 'li' (hark a)))) appd))
+          [%lund *]  (wtag 'ul' (reel (turn p.a |=(a=down (wtag 'li' (hark a)))) appd))
+          [%parg *]  (wtag 'p' (hark p.a))
+          [%quot *]  (wtag 'blockquote' (hark p.a))
+          [%rong *]  (wtag 'strong' (hark p.a))
+          [%emph *]  (wtag 'em' (hark p.a))
+          [%hrul *]  '<hr>'
+          [%html *]  (rap 3 p.a)
+          ^  (cat 3 (hark p.a) (hark q.a))
+        ==
+      --
+    ==
+|=  txt=@
+=+  tpt=(trip txt)
+=+  mdp=(mark tpt)
+:(appd '<html><body>' (hark mdp) '</body></html>')

try/sys/md/tan/mime/gate.hoon

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+|=  *
+|=  htm=@
+[/text/html (met 3 htm) htm]