Module: Aura

Included in:
P, Q
Defined in:
lib/aura.rb

Overview

Functionality for wrangling Urbit ‘@da`, `@p`, `@q`, `@ux`, etc.

Defined Under Namespace

Modules: P, Q

Constant Summary collapse

VERSION = 
"0.1.0"
PREFIXES =

List of all possible prefixes for @p encoding.

%w[
  doz mar bin wan sam lit sig hid fid lis sog dir wac sab wis sib
  rig sol dop mod fog lid hop dar dor lor hod fol rin tog sil mir
  hol pas lac rov liv dal sat lib tab han tic pid tor bol fos dot
  los dil for pil ram tir win tad bic dif roc wid bis das mid lop
  ril nar dap mol san loc nov sit nid tip sic rop wit nat pan min
  rit pod mot tam tol sav pos nap nop som fin fon ban mor wor sip
  ron nor bot wic soc wat dol mag pic dav bid bal tim tas mal lig
  siv tag pad sal div dac tan sid fab tar mon ran nis wol mis pal
  las dis map rab tob rol lat lon nod nav fig nom nib pag sop ral
  bil had doc rid moc pac rav rip fal tod til tin hap mic fan pat
  tac lab mog sim son pin lom ric tap fir has bos bat poc hac tid
  hav sap lin dib hos dab bit bar rac par lod dos bor toc hil mac
  tom dig fil fas mit hob har mig hin rad mas hal rag lag fad top
  mop hab nil nos mil fop fam dat nol din hat nac ris fot rib hoc
  nim lar fit wal rap sar nal mos lan don dan lad dov riv bac pol
  lap tal pit nam bon ros ton fod pon sov noc sor lav mat mip fip
].freeze
SUFFIXES =

List of all possible suffixes for @p encoding.

%w[
  zod nec bud wes sev per sut let ful pen syt dur wep ser wyl sun
  ryp syx dyr nup heb peg lup dep dys put lug hec ryt tyv syd nex
  lun mep lut sep pes del sul ped tem led tul met wen byn hex feb
  pyl dul het mev rut tyl wyd tep bes dex sef wyc bur der nep pur
  rys reb den nut sub pet rul syn reg tyd sup sem wyn rec meg net
  sec mul nym tev web sum mut nyx rex teb fus hep ben mus wyx sym
  sel ruc dec wex syr wet dyl myn mes det bet bel tux tug myr pel
  syp ter meb set dut deg tex sur fel tud nux rux ren wyt nub med
  lyt dus neb rum tyn seg lyx pun res red fun rev ref mec ted rus
  bex leb dux ryn num pyx ryg ryx fep tyr tus tyc leg nem fer mer
  ten lus nus syl tec mex pub rym tuc fyl lep deb ber mug hut tun
  byl sud pem dev lur def bus bep run mel pex dyt byt typ lev myl
  wed duc fur fex nul luc len ner lex rup ned lec ryd lyd fen wel
  nyd hus rel rud nes hes fet des ret dun ler nyr seb hul ryl lud
  rem lys fyn wer ryc sug nys nyl lyn dyn dem lux fed sed bec mun
  lyr tes mud nyt byr sen weg fyr mur tel rep teg pec nel nev fes
].freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.version ⇒ Object 



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# File 'lib/aura.rb', line 9

def self.version
  VERSION
end

Instance Method Details

#bex(n) ⇒ Object 



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# File 'lib/aura.rb', line 53

def bex(n)
  2**n
end

#end_bits(a, b, c) ⇒ Object 



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# File 'lib/aura.rb', line 65

def end_bits(a, b, c)
  c % bex(bex(a) * b)
end

#met(a, b, c = 0) ⇒ Object 



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# File 'lib/aura.rb', line 61

def met(a, b, c = 0)
  b.zero? ? c : met(a, rsh(a, 1, b), c + 1)
end

#patp2syls(name) ⇒ Object 



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# File 'lib/aura.rb', line 69

def patp2syls(name)
  name.gsub(/[\^~-]/, "").scan(/.{1,3}/)
end

#rsh(a, b, c) ⇒ Object 



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# File 'lib/aura.rb', line 57

def rsh(a, b, c)
  c / bex(bex(a) * b)
end

#valid_pat?(name) ⇒ Boolean

Returns:

  • (Boolean)

Raises:

  • (ArgumentError) 


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# File 'lib/aura.rb', line 73

def valid_pat?(name)
  raise ArgumentError, "valid_pat?: non-string input" unless name.is_a? String

  leading_tilde = name.start_with?("~")

  return false if !leading_tilde || name.length < 4

  syls = patp2syls(name)
  wrong_length = syls.length.odd? && syls.length != 1
  syls_exist = syls.each_with_index.all? do |syl, index|
    if index.odd? || syls.length == 1
      SUFFIXES.include?(syl)
    else
      PREFIXES.include?(syl)
    end
  end

  !wrong_length && syls_exist
end