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                                                      • Standard Library

                                                        • 1a: Basic Arithmetic
                                                        • 1b: Tree Addressing
                                                        • 1c: Molds and Mold-Builders
                                                        • 2a: Unit Logic
                                                        • 2b: List Logic
                                                        • 2c: Bit Arithmetic
                                                        • 2d: Bit Logic
                                                        • 2e: Insecure Hashing
                                                        • 2f: Noun Ordering
                                                        • 2g: Unsigned Powers
                                                        • 2h: Set Logic
                                                        • 2i: Map Logic
                                                        • 2j: Jar and Jug Logic
                                                        • 2k: Queue Logic
                                                        • 2l: Container from Container
                                                        • 2m: Container from Noun
                                                        • 2n: Functional Hacks
                                                        • 2o: Normalizing Containers
                                                        • 2p: Serialization
                                                        • 2q: Molds and Mold-Builders
                                                        • 3a: Modular and Signed Ints
                                                        • 3b: Floating Point
                                                        • 3c: Urbit Time
                                                        • 3d: SHA Hash Family
                                                        • 3e: AES encryption (Removed)
                                                        • 3f: Scrambling
                                                        • 3g: Molds and Mold-Builders
                                                        • 4a: Exotic Bases
                                                        • 4b: Text Processing
                                                        • 4c: Tank Printer
                                                        • 4d: Parsing (Tracing)
                                                        • 4e: Parsing (Combinators)
                                                        • 4f: Parsing (Rule-Builders)
                                                        • 4g: Parsing (Outside Caller)
                                                        • 4h: Parsing (ASCII Glyphs)
                                                        • 4i: Parsing (Useful Idioms)
                                                        • 4j: Parsing (Bases and Base Digits)
                                                        • 4k: Atom Printing
                                                        • 4l: Atom Parsing
                                                        • 4m: Formatting Functions
                                                        • 4n: Virtualization
                                                        • 4o: Molds
                                                        • 5a: Compiler Utilities
                                                        • 5b: Macro Expansion
                                                        • 5c: Compiler Backend & Prettyprinter
                                                        • 5d: Parser
                                                        • 5e: Molds and mold builders
                                                        • 5f: Profiling support
                                                        • Runes

                                                          • Constants (Atoms and Strings)
                                                          • + lus · Arms
                                                          • | bar · Cores
                                                          • $ buc · Structures
                                                          • % cen · Calls
                                                          • : col · Cells
                                                          • . dot · Nock
                                                          • / fas · Imports
                                                          • ^ ket · Casts
                                                          • ; mic · Make
                                                          • ~ sig · Hints
                                                          • = tis · Subject
                                                          • ? wut · Conditionals
                                                          • ! zap · Wild
                                                          • --, == Terminators
                                                          • Limbs and wings

                                                            • Limbs
                                                            • Wings
                                                            • Zuse

                                                              • 2d(1-5): To JSON, Wains
                                                              • 2d(6): From JSON
                                                              • 2d(7): From JSON (unit)
                                                              • 2e(2-3): Print & Parse JSON
                                                              • 2m: Ordered Maps
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                                                                                                      Reference/Hoon/Standard Library

                                                                                                      4b: Text Processing

                                                                                                      ++at

                                                                                                      Basic printing

                                                                                                      Container core for basic atom printing functions.

                                                                                                      Note that these are largely deprecated, using outdated syntax, character mappings and encodings, and should generally not be used.

                                                                                                      Accepts

                                                                                                      a is a @.

                                                                                                      Source

                                                                                                      ++ at
                                                                                                      |_ a=@

                                                                                                      ++r:at

                                                                                                      Print term, number or hex

                                                                                                      If a is composed of the letters a through z and -, print as @tas syntax. If a is an atom of two bytes or less, print as an integer with comma-separated thousands. Otherwise, print a as @ux syntax.

                                                                                                      Accepts

                                                                                                      a is a @, and is the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ r
                                                                                                      ?: ?& (gte (met 3 a) 2)
                                                                                                      |-
                                                                                                      ?: =(0 a)
                                                                                                      &
                                                                                                      =+ vis=(end 3 a)
                                                                                                      ?& ?|(=('-' vis) ?&((gte vis 'a') (lte vis 'z')))
                                                                                                      $(a (rsh 3 a))
                                                                                                      ==
                                                                                                      ==
                                                                                                      rtam
                                                                                                      ?: (lte (met 3 a) 2)
                                                                                                      rud
                                                                                                      rux

                                                                                                      Examples

                                                                                                      > ~(r at 'foo-bar')
                                                                                                      "%foo-bar"
                                                                                                      > ~(r at 0xbeef)
                                                                                                      "48,879"
                                                                                                      > ~(r at 0xdead.beef)
                                                                                                      "0xdead-beef"

                                                                                                      ++rf:at

                                                                                                      Print loobean

                                                                                                      If a is a loobean, print as |/&, otherwise crash.

                                                                                                      Accepts

                                                                                                      a is a @, and is the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rf `tape`[?-(a %& '&', %| '|', * !!) ~]

                                                                                                      Examples

                                                                                                      > ~(rf at %.y)
                                                                                                      "&"
                                                                                                      > ~(rf at %.n)
                                                                                                      "|"
                                                                                                      > ~(rf at 'foo')
                                                                                                      dojo: hoon expression failed

                                                                                                      ++rn:at

                                                                                                      Print null

                                                                                                      If a is null, print ~, otherwise crash.

                                                                                                      Accepts

                                                                                                      a is a @, and is the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rn `tape`[?>(=(0 a) '~') ~]

                                                                                                      Examples

                                                                                                      > ~(rn at ~)
                                                                                                      "~"
                                                                                                      > ~(rn at 'foo')
                                                                                                      dojo: hoon expression failed

                                                                                                      ++rt:at

                                                                                                      Print cord, including escape characters

                                                                                                      Print a with cord syntax, including escape characters.

                                                                                                      Accepts

                                                                                                      a is a @, and the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rt `tape`['\'' (weld (mesc (trip a)) `tape`['\'' ~])]

                                                                                                      Examples

                                                                                                      > ~(rt at 'foo')
                                                                                                      "'foo'"
                                                                                                      > ~(rt at 'fo\\o')
                                                                                                      "'fo\\\\o'"
                                                                                                      > ~(rt at 'fo\'o')
                                                                                                      "'fo\\0x27/o'"

                                                                                                      ++rta:at

                                                                                                      Same as ++rt:at

                                                                                                      Source

                                                                                                      ++ rta rt

                                                                                                      ++rtam:at

                                                                                                      Print cord with @tas syntax

                                                                                                      Treat a as cord, print it with % prefix.

                                                                                                      Accepts

                                                                                                      a is a @, and is the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rtam `tape`['%' (trip a)]

                                                                                                      Examples

                                                                                                      > ~(rtam at 'foo')
                                                                                                      "%foo"
                                                                                                      > ~(rtam at '12')
                                                                                                      "%12"
                                                                                                      > ~(rtam at '!!!')
                                                                                                      "%!!!"

                                                                                                      ++rub:at

                                                                                                      Print binary

                                                                                                      Print a as @ub syntax, except with - separators rather than . separators.

                                                                                                      Accepts

                                                                                                      a is a @, and is the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rub `tape`['0' 'b' (rum 2 ~ |=(b=@ (add '0' b)))]

                                                                                                      Examples

                                                                                                      > ~(rub at 0xbeef)
                                                                                                      "0b1011-1110-1110-1111"

                                                                                                      ++rud:at

                                                                                                      Print atom as integer

                                                                                                      Print atom a as an integer, with commas separating thousands.

                                                                                                      Accepts

                                                                                                      a is a @.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rud (rum 10 ~ |=(b=@ (add '0' b)))

                                                                                                      Examples

                                                                                                      > ~(rud at 0xbeef)
                                                                                                      "48,879"

                                                                                                      ++rum:at

                                                                                                      Print base-n

                                                                                                      Print a as base b with suffix c and using gate d to convert blocks to characters. Each set of four characters will be separated by -, except for base 10 which will be printed with commas separating thousands.

                                                                                                      Accepts

                                                                                                      • a is a @, and is the sample of ++at
                                                                                                      • b is a @, denoting the the base.
                                                                                                      • c is a tape, and will be appended to the end of the result.
                                                                                                      • d is a gate that takes @ and produces @.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rum
                                                                                                      |= [b=@ c=tape d=$-(@ @)]
                                                                                                      ^- tape
                                                                                                      ?: =(0 a)
                                                                                                      [(d 0) c]
                                                                                                      =+ e=0
                                                                                                      |- ^- tape
                                                                                                      ?: =(0 a)
                                                                                                      c
                                                                                                      =+ f=&(!=(0 e) =(0 (mod e ?:(=(10 b) 3 4))))
                                                                                                      %= $
                                                                                                      a (div a b)
                                                                                                      c [(d (mod a b)) ?:(f [?:(=(10 b) ',' '-') c] c)]
                                                                                                      e +(e)
                                                                                                      ==

                                                                                                      Examples

                                                                                                      > (~(rum at 0xdead.beef) 10 ~ |=(b=@ (add '0' b)))
                                                                                                      "3,735,928,559"
                                                                                                      > (~(rum at 0xdead.beef) 10 " m/s" |=(b=@ (add '0' b)))
                                                                                                      "3,735,928,559 m/s"
                                                                                                      > (~(rum at 0xdead.beef) 2 ~ |=(b=@ (add '0' b)))
                                                                                                      "1101-1110-1010-1101-1011-1110-1110-1111"

                                                                                                      ++rup:at

                                                                                                      Print @p (outdated)

                                                                                                      Print a as an @p, but with outdated syntax and number<->syllable mapping. This function almost certainly should not be used.

                                                                                                      Accepts

                                                                                                      a is a @.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rup
                                                                                                      =+ b=(met 3 a)
                                                                                                      ^- tape
                                                                                                      :- '-'
                                                                                                      |- ^- tape
                                                                                                      ?: (gth (met 5 a) 1)
                                                                                                      %+ weld
                                                                                                      $(a (rsh 5 a), b (sub b 4))
                                                                                                      `tape`['-' '-' $(a (end 5 a), b 4)]
                                                                                                      ?: =(0 b)
                                                                                                      ['~' ~]
                                                                                                      ?: (lte b 1)
                                                                                                      (trip (tos:po a))
                                                                                                      |- ^- tape
                                                                                                      ?: =(2 b)
                                                                                                      =+ c=(rsh 3 a)
                                                                                                      =+ d=(end 3 a)
                                                                                                      (weld (trip (tod:po c)) (trip (tos:po (mix c d))))
                                                                                                      =+ c=(rsh [3 2] a)
                                                                                                      =+ d=(end [3 2] a)
                                                                                                      (weld ^$(a c, b (met 3 c)) `tape`['-' $(a (mix c d), b 2)])

                                                                                                      Examples

                                                                                                      > ~(rup at 0xdead.beef)
                                                                                                      "-rylsal-sellac"
                                                                                                      > ~(rup at ~sampel-palnet)
                                                                                                      "-sellod-lebdiv"
                                                                                                      > ~(rup at ~zod)
                                                                                                      "-~"

                                                                                                      ++ruv:at

                                                                                                      Print base-64

                                                                                                      Print a as outdated base-64 syntax, with 0v rather than 0w prefix, different character mappings and separators.

                                                                                                      Accepts

                                                                                                      a is a @, and is the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ ruv
                                                                                                      ^- tape
                                                                                                      :+ '0'
                                                                                                      'v'
                                                                                                      %^ rum
                                                                                                      64
                                                                                                      ~
                                                                                                      |= b=@
                                                                                                      ?: =(63 b)
                                                                                                      '+'
                                                                                                      ?: =(62 b)
                                                                                                      '-'
                                                                                                      ?:((lth b 26) (add 65 b) ?:((lth b 52) (add 71 b) (sub b 4)))

                                                                                                      Examples

                                                                                                      > ~(ruv at 0xdead.beef)
                                                                                                      "0vDe-rb7v"

                                                                                                      Note this is how it should be rendered:

                                                                                                      > `@uw`0xdead.beef
                                                                                                      0w3.uHrXL

                                                                                                      ++rux:at

                                                                                                      Print hexadecimal

                                                                                                      Print a as @ux except with - separators rather than .s.

                                                                                                      Accepts

                                                                                                      a is a @, and is the sample of ++at.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ rux `tape`['0' 'x' (rum 16 ~ |=(b=@ (add b ?:((lth b 10) 48 87))))]

                                                                                                      Examples

                                                                                                      > ~(rux at 0xdead.beef)
                                                                                                      "0xdead-beef"

                                                                                                      ++cass

                                                                                                      To lowercase

                                                                                                      Turn all occurences of uppercase letters in any tape into lowercase letters. Returns a tape.

                                                                                                      Accepts

                                                                                                      vib is a tape.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ cass
                                                                                                      |= vib=tape
                                                                                                      ^- tape
                                                                                                      (turn vib |=(a=@ ?.(&((gte a 'A') (lte a 'Z')) a (add 32 a))))

                                                                                                      Examples

                                                                                                      > (cass "JOHN DOE")
                                                                                                      "john doe"
                                                                                                      > (cass "abc ABC 123 !@#")
                                                                                                      "abc abc 123 !@#"
                                                                                                      > (cass "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsQqRrVvWwXxYyZz")
                                                                                                      "aabbccddeeffgghhiijjkkllmmnnooppqqrrssqqrrvvwwxxyyzz"

                                                                                                      ++crip

                                                                                                      Tape to cord

                                                                                                      Produce a cord from a tape.

                                                                                                      Accepts

                                                                                                      a is a tape.

                                                                                                      Produces

                                                                                                      A cord.

                                                                                                      Source

                                                                                                      ++ crip |=(a=tape `@t`(rap 3 a))

                                                                                                      Examples

                                                                                                      > (crip "john doe")
                                                                                                      'john doe'
                                                                                                      > (crip "abc 123 !@#")
                                                                                                      'abc 123 !@#'
                                                                                                      > `@ud`(crip "abc")
                                                                                                      6.513.249

                                                                                                      ++cuss

                                                                                                      To uppercase

                                                                                                      Turn all occurences of lowercase letters in any tape into uppercase letters. Returns a tape.

                                                                                                      Accepts

                                                                                                      vib is a tape.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ cuss
                                                                                                      |= vib=tape
                                                                                                      ^- tape
                                                                                                      (turn vib |=(a=@ ?.(&((gte a 'a') (lte a 'z')) a (sub a 32))))

                                                                                                      Examples

                                                                                                      > (cuss "john doe")
                                                                                                      "JOHN DOE"
                                                                                                      > (cuss "abc ABC 123 !@#")
                                                                                                      "ABC ABC 123 !@#"
                                                                                                      > (cuss "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsQqRrVvWwXxYyZz")
                                                                                                      "AABBCCDDEEFFGGHHIIJJKKLLMMNNOOPPQQRRSSQQRRVVWWXXYYZZ"

                                                                                                      ++mesc

                                                                                                      Escape special chars

                                                                                                      Escape special characters.

                                                                                                      Accepts

                                                                                                      vib is a tape.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ mesc
                                                                                                      |= vib=tape
                                                                                                      ^- tape
                                                                                                      ?~ vib
                                                                                                      ~
                                                                                                      ?: =('\\' i.vib)
                                                                                                      ['\\' '\\' $(vib t.vib)]
                                                                                                      ?: ?|((gth i.vib 126) (lth i.vib 32) =(`@`39 i.vib))
                                                                                                      ['\\' (welp ~(rux at i.vib) '/' $(vib t.vib))]
                                                                                                      [i.vib $(vib t.vib)]

                                                                                                      Examples

                                                                                                      > (mesc "ham lus")
                                                                                                      "ham lus"
                                                                                                      > (mesc "bas\\hur")
                                                                                                      "bas\\\\hur"
                                                                                                      > (mesc "as'saß")
                                                                                                      "as\0x27/sa\0xc3/\0x9f/"

                                                                                                      ++runt

                                                                                                      Prepend n times

                                                                                                      Add a repetitions of character b to the head of tape c.

                                                                                                      Accepts

                                                                                                      [a b] are atoms.

                                                                                                      c is a tape.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ runt
                                                                                                      |= [[a=@ b=@] c=tape]
                                                                                                      ^- tape
                                                                                                      ?: =(0 a)
                                                                                                      c
                                                                                                      [b $(a (dec a))]

                                                                                                      Examples

                                                                                                      > (runt [2 '/'] "ham")
                                                                                                      "//ham"
                                                                                                      > (runt [10 'a'] "")
                                                                                                      "aaaaaaaaaa"

                                                                                                      ++sand

                                                                                                      Soft-cast by aura

                                                                                                      Check characters in b are valid for aura a. Produce a unit of a if valid and a null unit if not. Takes a and produces a gate that takes b.

                                                                                                      Accepts

                                                                                                      a is a @ta, and specifies the aura like %tas or %ta.

                                                                                                      b is an atom.

                                                                                                      Produces

                                                                                                      A (unit @).

                                                                                                      Source

                                                                                                      ++ sand
                                                                                                      |= a=@ta
                                                                                                      (flit (sane a))

                                                                                                      Examples

                                                                                                      > `(unit @ta)`((sand %ta) 'sym-som')
                                                                                                      [~ ~.sym-som]
                                                                                                      > `(unit @ta)`((sand %ta) 'err!')
                                                                                                      ~

                                                                                                      ++sane

                                                                                                      Check aura validity

                                                                                                      Check validity of a by aura b. Takes b and produces a gate that takes a.

                                                                                                      Accepts

                                                                                                      a is a @ta, and specifies the aura like %tas or %ta.

                                                                                                      b is an atom.

                                                                                                      Produces

                                                                                                      A ?.

                                                                                                      Source

                                                                                                      ++ sane
                                                                                                      |= a=@ta
                                                                                                      |= b=@ ^- ?
                                                                                                      ?. =(%t (end 3 a))
                                                                                                      :: XX more and better sanity
                                                                                                      ::
                                                                                                      &
                                                                                                      =+ [inx=0 len=(met 3 b)]
                                                                                                      ?: =(%tas a)
                                                                                                      |- ^- ?
                                                                                                      ?: =(inx len) &
                                                                                                      =+ cur=(cut 3 [inx 1] b)
                                                                                                      ?& ?| &((gte cur 'a') (lte cur 'z'))
                                                                                                      &(=('-' cur) !=(0 inx) !=(len inx))
                                                                                                      &(&((gte cur '0') (lte cur '9')) !=(0 inx))
                                                                                                      ==
                                                                                                      $(inx +(inx))
                                                                                                      ==
                                                                                                      ?: =(%ta a)
                                                                                                      |- ^- ?
                                                                                                      ?: =(inx len) &
                                                                                                      =+ cur=(cut 3 [inx 1] b)
                                                                                                      ?& ?| &((gte cur 'a') (lte cur 'z'))
                                                                                                      &((gte cur '0') (lte cur '9'))
                                                                                                      |(=('-' cur) =('~' cur) =('_' cur) =('.' cur))
                                                                                                      ==
                                                                                                      $(inx +(inx))
                                                                                                      ==
                                                                                                      |- ^- ?
                                                                                                      ?: =(0 b) &
                                                                                                      =+ cur=(end 3 b)
                                                                                                      ?: &((lth cur 32) !=(10 cur)) |
                                                                                                      =+ len=(teff cur)
                                                                                                      ?& |(=(1 len) =+(i=1 |-(|(=(i len) &((gte (cut 3 [i 1] b) 128) $(i +(i)))))))
                                                                                                      $(b (rsh [3 len] b))
                                                                                                      ==

                                                                                                      Examples

                                                                                                      > ((sane %tas) %mol)
                                                                                                      %.y
                                                                                                      > ((sane %tas) 'lam')
                                                                                                      %.y
                                                                                                      > ((sane %tas) 'more ace')
                                                                                                      %.n

                                                                                                      ++taft

                                                                                                      UTF8 to UTF32

                                                                                                      Convert cord a to a UTF32 @c.

                                                                                                      Accepts

                                                                                                      a is a @t.

                                                                                                      Produces

                                                                                                      A @c.

                                                                                                      Source

                                                                                                      ++ taft
                                                                                                      |= a=@t
                                                                                                      ^- @c
                                                                                                      %+ rap 5
                                                                                                      |- ^- (list @c)
                                                                                                      =+ b=(teff a)
                                                                                                      ?: =(0 b) ~
                                                                                                      =+ ^= c
                                                                                                      %+ can 0
                                                                                                      %+ turn
                                                                                                      ^- (list [p=@ q=@])
                                                                                                      ?+ b !!
                                                                                                      %1 [[0 7] ~]
                                                                                                      %2 [[8 6] [0 5] ~]
                                                                                                      %3 [[16 6] [8 6] [0 4] ~]
                                                                                                      %4 [[24 6] [16 6] [8 6] [0 3] ~]
                                                                                                      ==
                                                                                                      |=([p=@ q=@] [q (cut 0 [p q] a)])
                                                                                                      ?> =((tuft c) (end [3 b] a))
                                                                                                      [c $(a (rsh [3 b] a))]

                                                                                                      Examples

                                                                                                      > (taft 'foobar')
                                                                                                      ~-foobar
                                                                                                      > `@ux`'foobar'
                                                                                                      0x7261.626f.6f66
                                                                                                      > `@ux`~-foobar
                                                                                                      0x72.0000.0061.0000.0062.0000.006f.0000.006f.0000.0066

                                                                                                      ++teff

                                                                                                      UTF8 Length

                                                                                                      Produces the number of utf8 bytes of a, a single @t character. If a contains more than one character, it will produce the byte-length of the first one.

                                                                                                      Accepts

                                                                                                      a is a @t.

                                                                                                      Produces

                                                                                                      An atom.

                                                                                                      Source

                                                                                                      ++ teff
                                                                                                      |= a=@t ^- @
                                                                                                      =+ b=(end 3 a)
                                                                                                      ?: =(0 b)
                                                                                                      ?>(=(`@`0 a) 0)
                                                                                                      ?> |((gte b 32) =(10 b))
                                                                                                      ?:((lte b 127) 1 ?:((lte b 223) 2 ?:((lte b 239) 3 4)))

                                                                                                      Examples

                                                                                                      > (teff 'a')
                                                                                                      1
                                                                                                      > (teff 'ß')
                                                                                                      2
                                                                                                      > (teff 'aß')
                                                                                                      1

                                                                                                      ++trim

                                                                                                      Tape split

                                                                                                      Split first a characters off tape b.

                                                                                                      Accepts

                                                                                                      a is an atom.

                                                                                                      b is a tape.

                                                                                                      Produces

                                                                                                      A cell of tapes, p and q.

                                                                                                      Source

                                                                                                      ++ trim
                                                                                                      |= [a=@ b=tape]
                                                                                                      ^- [p=tape q=tape]
                                                                                                      ?~ b
                                                                                                      [~ ~]
                                                                                                      ?: =(0 a)
                                                                                                      [~ b]
                                                                                                      =+ c=$(a (dec a), b t.b)
                                                                                                      [[i.b p.c] q.c]

                                                                                                      Examples

                                                                                                      > (trim 5 "lasok termun")
                                                                                                      [p="lasok" q=" termun"]
                                                                                                      > (trim 5 "zam")
                                                                                                      [p="zam" q=""]

                                                                                                      ++trip

                                                                                                      Cord to tape

                                                                                                      Produce a tape from cord a.

                                                                                                      Accepts

                                                                                                      a is an atom.

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ trip
                                                                                                      ~/ %trip
                                                                                                      |= a=@ ^- tape
                                                                                                      ?: =(0 (met 3 a))
                                                                                                      ~
                                                                                                      [^-(@ta (end 3 a)) $(a (rsh 3 a))]

                                                                                                      Examples

                                                                                                      > (trip 'john doe')
                                                                                                      "john doe"
                                                                                                      > (trip 'abc 123 !@#')
                                                                                                      "abc 123 !@#"
                                                                                                      > (trip 'abc')
                                                                                                      "abc"

                                                                                                      ++tuba

                                                                                                      UTF8 tape to UTF32 tape

                                                                                                      Convert tape to a list of codepoints (@c).

                                                                                                      Accepts

                                                                                                      a is a tape.

                                                                                                      Produces

                                                                                                      A (list @c).

                                                                                                      Source

                                                                                                      ++ tuba
                                                                                                      |= a=tape
                                                                                                      ^- (list @c)
                                                                                                      (rip 5 (taft (rap 3 a)))

                                                                                                      Examples

                                                                                                      > (tuba "я тут")
                                                                                                      ~[~-~44f. ~-. ~-~442. ~-~443. ~-~442.]
                                                                                                      > (tuba "chars")
                                                                                                      ~[~-c ~-h ~-a ~-r ~-s]

                                                                                                      ++tufa

                                                                                                      UTF32 to UTF8 tape

                                                                                                      Wrap a list of utf32 codepoints into a utf8 tape.

                                                                                                      Accepts

                                                                                                      a is a (list @c).

                                                                                                      Produces

                                                                                                      A tape.

                                                                                                      Source

                                                                                                      ++ tufa
                                                                                                      |= a=(list @c)
                                                                                                      ^- tape
                                                                                                      ?~ a ""
                                                                                                      (weld (rip 3 (tuft i.a)) $(a t.a))

                                                                                                      Examples

                                                                                                      > (tufa ~[~-~44f. ~-. ~-~442. ~-~443. ~-~442.])
                                                                                                      "я тут"
                                                                                                      > (tufa ((list @c) ~[%a %b 0xb1 %c]))
                                                                                                      "ab±c"

                                                                                                      ++tuft

                                                                                                      UTF32 to UTF8

                                                                                                      Convert @c to cord.

                                                                                                      Accepts

                                                                                                      a is a @c.

                                                                                                      Produces

                                                                                                      A cord.

                                                                                                      Source

                                                                                                      ++ tuft
                                                                                                      |= a=@c
                                                                                                      ^- @t
                                                                                                      %+ rap 3
                                                                                                      |- ^- (list @)
                                                                                                      ?: =(`@`0 a)
                                                                                                      ~
                                                                                                      =+ b=(end 5 a)
                                                                                                      =+ c=$(a (rsh 5 a))
                                                                                                      ?: (lte b 0x7f)
                                                                                                      [b c]
                                                                                                      ?: (lte b 0x7ff)
                                                                                                      :* (mix 0b1100.0000 (cut 0 [6 5] b))
                                                                                                      (mix 0b1000.0000 (end [0 6] b))
                                                                                                      c
                                                                                                      ==
                                                                                                      ?: (lte b 0xffff)
                                                                                                      :* (mix 0b1110.0000 (cut 0 [12 4] b))
                                                                                                      (mix 0b1000.0000 (cut 0 [6 6] b))
                                                                                                      (mix 0b1000.0000 (end [0 6] b))
                                                                                                      c
                                                                                                      ==
                                                                                                      :* (mix 0b1111.0000 (cut 0 [18 3] b))
                                                                                                      (mix 0b1000.0000 (cut 0 [12 6] b))
                                                                                                      (mix 0b1000.0000 (cut 0 [6 6] b))
                                                                                                      (mix 0b1000.0000 (end [0 6] b))
                                                                                                      c
                                                                                                      ==

                                                                                                      Examples

                                                                                                      > (tuft ~-foobar)
                                                                                                      'foobar'
                                                                                                      > `@ux`~-foobar
                                                                                                      0x72.0000.0061.0000.0062.0000.006f.0000.006f.0000.0066
                                                                                                      > `@ux`'foobar'
                                                                                                      0x7261.626f.6f66

                                                                                                      ++wack

                                                                                                      Knot escape

                                                                                                      Escape knot ~ as ~~ and _ as ~-. Used for printing.

                                                                                                      Accepts

                                                                                                      a is a knot.

                                                                                                      Produces

                                                                                                      A knot.

                                                                                                      Source

                                                                                                      ++ wack
                                                                                                      |= a=@ta
                                                                                                      ^- @ta
                                                                                                      =+ b=(rip 3 a)
                                                                                                      %+ rap 3
                                                                                                      |- ^- tape
                                                                                                      ?~ b
                                                                                                      ~
                                                                                                      ?: =('~' i.b) ['~' '~' $(b t.b)]
                                                                                                      ?: =('_' i.b) ['~' '-' $(b t.b)]
                                                                                                      [i.b $(b t.b)]

                                                                                                      Examples

                                                                                                      > (wack '~20_sam~')
                                                                                                      ~.~~20~-sam~~
                                                                                                      > `@t`(wack '~20_sam~')
                                                                                                      '~~20~-sam~~'

                                                                                                      ++wick

                                                                                                      Knot unescape

                                                                                                      Unescape knot ~~ as ~ and ~- as _. Produces a unit, which is null if the knot contains unescaped ~ characters.

                                                                                                      Accepts

                                                                                                      a is a an atom.

                                                                                                      Produces

                                                                                                      A (unit @ta).

                                                                                                      Source

                                                                                                      ++ wick
                                                                                                      |= a=@
                                                                                                      ^- (unit @ta)
                                                                                                      =+ b=(rip 3 a)
                                                                                                      =- ?^(b ~ (some (rap 3 (flop c))))
                                                                                                      =| c=tape
                                                                                                      |- ^- [b=tape c=tape]
                                                                                                      ?~ b [~ c]
                                                                                                      ?. =('~' i.b)
                                                                                                      $(b t.b, c [i.b c])
                                                                                                      ?~ t.b [b ~]
                                                                                                      ?- i.t.b
                                                                                                      %'~' $(b t.t.b, c ['~' c])
                                                                                                      %'-' $(b t.t.b, c ['_' c])
                                                                                                      @ [b ~]
                                                                                                      ==

                                                                                                      Examples

                                                                                                      > (wick ~.~~20~-sam~~)
                                                                                                      [~ ~.~20_sam~]
                                                                                                      > (wick ~.~20~-sam~~)
                                                                                                      ~

                                                                                                      ++woad

                                                                                                      Unescape cord

                                                                                                      Unescape knot-encoded cord.

                                                                                                      Accepts

                                                                                                      a is a @ta.

                                                                                                      Produces

                                                                                                      A cord.

                                                                                                      Source

                                                                                                      ++ woad
                                                                                                      |= a=@ta
                                                                                                      ^- @t
                                                                                                      %+ rap 3
                                                                                                      |- ^- (list @)
                                                                                                      ?: =(`@`0 a)
                                                                                                      ~
                                                                                                      =+ b=(end 3 a)
                                                                                                      =+ c=(rsh 3 a)
                                                                                                      ?: =('.' b)
                                                                                                      [' ' $(a c)]
                                                                                                      ?. =('~' b)
                                                                                                      [b $(a c)]
                                                                                                      => .(b (end 3 c), c (rsh 3 c))
                                                                                                      ?+ b =- (weld (rip 3 (tuft p.d)) $(a q.d))
                                                                                                      ^= d
                                                                                                      =+ d=0
                                                                                                      |- ^- [p=@ q=@]
                                                                                                      ?: =('.' b)
                                                                                                      [d c]
                                                                                                      ?< =(0 c)
                                                                                                      %= $
                                                                                                      b (end 3 c)
                                                                                                      c (rsh 3 c)
                                                                                                      d %+ add (mul 16 d)
                                                                                                      %+ sub b
                                                                                                      ?: &((gte b '0') (lte b '9')) 48
                                                                                                      ?>(&((gte b 'a') (lte b 'z')) 87)
                                                                                                      ==
                                                                                                      %'.' ['.' $(a c)]
                                                                                                      %'~' ['~' $(a c)]
                                                                                                      ==

                                                                                                      Examples

                                                                                                      > (woad ~.foo.bar~21.)
                                                                                                      'foo bar!'

                                                                                                      ++wood

                                                                                                      Escape cord

                                                                                                      Escape cord a so it can be encoded in a knot.

                                                                                                      Accepts

                                                                                                      a is a cord.

                                                                                                      Produces

                                                                                                      A knot.

                                                                                                      Source

                                                                                                      ++ wood
                                                                                                      |= a=@t
                                                                                                      ^- @ta
                                                                                                      %+ rap 3
                                                                                                      |- ^- (list @)
                                                                                                      ?: =(`@`0 a)
                                                                                                      ~
                                                                                                      =+ b=(teff a)
                                                                                                      =+ c=(taft (end [3 b] a))
                                                                                                      =+ d=$(a (rsh [3 b] a))
                                                                                                      ?: ?| &((gte c 'a') (lte c 'z'))
                                                                                                      &((gte c '0') (lte c '9'))
                                                                                                      =(`@`'-' c)
                                                                                                      ==
                                                                                                      [c d]
                                                                                                      ?+ c
                                                                                                      :- '~'
                                                                                                      =+ e=(met 2 c)
                                                                                                      |- ^- tape
                                                                                                      ?: =(0 e)
                                                                                                      ['.' d]
                                                                                                      =. e (dec e)
                                                                                                      =+ f=(rsh [2 e] c)
                                                                                                      [(add ?:((lte f 9) 48 87) f) $(c (end [2 e] c))]
                                                                                                      ::
                                                                                                      %' ' ['.' d]
                                                                                                      %'.' ['~' '.' d]
                                                                                                      %'~' ['~' '~' d]
                                                                                                      ==

                                                                                                      Examples

                                                                                                      > (wood 'foo bar!')
                                                                                                      ~.foo.bar~21.

                                                                                                      <-

                                                                                                      4a: Exotic Bases

                                                                                                      4c: Tank Printer

                                                                                                      ->

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                                                                                                      Last modified September 22, 2023