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|
#! ./dzref
tab←' '⋄nl←'
'
dig ← "0123456789"
alph ← "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
alow ← "abcdefghijklmnopqrstuvwxyz"
charSet←∾charGroups←⟨
chF←"+-×÷⋆√⌊⌈|¬∧∨<>≠=≤≥≡≢⊣⊢⥊∾≍↑↓↕⌽⍉/⍋⍒⊏⊑⊐⊒∊⍷⊔!" # Function
"˜˘¨⌜⁼´˝`" # Modifier
"∘○⊸⟜⌾⊘◶⎉⚇⍟" # Composition
nl∾"⋄," # Separator
"←↩→" # Gets
"(){}⟨⟩" # Bracket
"‿" # Ligature
"·" # nOthing
"𝕊𝕏𝕎𝔽𝔾𝕤𝕩𝕨𝕗𝕘" # Input (𝕣 pending; ℝ not allowed)
dig # Digit
"¯.π∞" # Numeric
alow∾alph∾"_" # Alphabetic
" "∾tab # Whitespace
# #'" eliminated during tokenization
⟩
ErrUnknownChars←{
"Unclosed quote"!¬∨´⟨''','"'⟩∊𝕩
⟨"Unknown character","s"/˜1<≠𝕩,": ",𝕩⟩∾⊸!0
}
CharCode←charSet{
Chk ← ⊢⊣ErrUnknownChars∘(≠/⊣)⍟≢⟜(⊏⟜𝕗)
g←⍋𝕗 ⋄ ⊢ Chk g⊏˜1-˜1⌈(g⊏𝕗)⍋⊢
}
bF‿bM‿bC‿bS‿bG‿bB‿bL‿bO‿bI‿bD‿bN‿bA‿bW←≍¨˜⟜(+`≠↑0∾⊢)≠¨charGroups
bA_e←4+⊑bA
M←1⊸⊑(0⊸≤∧>)-⟜⊑
vi←+´≠¨9↑charGroups
charRole←((vi-1⊑bI)↑/0∾≠¨3↑charGroups)∾(5/⌽↕2)∾0
spc←⥊3‿5‿6-⌜3‿0
Tokenize←{
r←𝕩='#'⋄s←/(≠↑2⊸↓)⊸∧𝕩='''⋄d←/dm←𝕩='"'
g←⍋q←∾⟨ s⋄¯1↓d⋄/r⟩ ⋄q↩g⊏q
e← g⊏∾⟨2+s⋄ 1↓d⋄(⊢-¯1↓0∾⊢)∘⊏⟜(0∾+`r)⊸//(𝕩=nl)∾1⟩
Se←{(⊏˜𝕨)Se 1¨⌾((𝕩/𝕨)⊸⊏)𝕩}⍟{0=⊑⌽𝕩}
st←¯1↓Se⟜(1↑˜≠)∾⟜≠q⍋e⋄b←st/q∾˘e
ToI←¯1↓·/⁼(≠𝕩)∾˜⥊
f←¬≠`bm←ToI b⋄f∧↩¬qe←f∧bm∧(1↓0∾˜⊢)⊸∧dm
cb←(¬(st/q)⊏r)/b
lu←⍷lit←𝕩⊔˜1-˜(+`qe-˜ToI⊑˘cb)×≠`ToI cb
cl←f/ToI⊑∘⌽˘cb
c←CharCode⌾((¬cl)⊸/) f/𝕩
w←(≠↑0∾⊢)⊸<l←c M (⊑bD)≍+´1⊑¨bD‿bN‿bA
na←≠alph⋄us←c=¯1++´bA
id←(1-˜(us<l)×+`w)⊔na(⊢-⊣×+⟜(⊑bA)⊸≤)c
ti←na⌊∘÷˜(⊑bA)-˜w/c
iu←(≠↑¯1∾⌈`)⊸<is←⊐id⋄ni←≠in←0>iu/ti
ti↩(us/˜(1↓0∾˜⊢)⊸<l)(⊢+∧⟜(2⊸=))0⌈ti
c↩(w∨¬l∨c M bW)/(vi+is⊏⍋⍋in)⌾(w⊸/)(vi+ni+lu⊐lit)⌾(cl⊸/)c
c/˜↩¬(≠↑1∾(c∊2‿4+⊑bB)∨⊢)⊸∧c M bS⋄c/˜↩¬(1↓1∾˜c∊3‿5+⊑bB)∧c M bS
ic←(0⊸≤∧<⟜ni)c-vi⋄t←ti⌾(ic⊸/)(vi⌊c)⊏charRole
c+↩5×c M 5≍˜⊑bI
⟨c,t,+´¬in,((in//iu)⊏id)∾lu⟩
}
ReadNum←{
n‿d‿p‿i←4↕⊸+⊑bN # ¯.π∞
Nat←+⟜(10⊸×)´∘⌽ -⟜(⊑bD)
Int←(n=⊑)◶⟨Nat,-·Nat 1⊸↓⟩
Dec←⊐⟜(<d)⊸(Nat∘↑ + ·(0<≠)◶⟨0,Nat÷10⋆≠⟩+⟜1⊸↓)
Pos←(⊑p‿i⊐⊏)◶⟨π,∞,Dec⟩
e←⊑𝕩⊐bA_e
m←(n=⊑)◶⟨Pos,-·Pos 1⊸↓⟩e↑𝕩
𝕩×⟜(10⋆·Int(e+1)↓⊣)˜⍟(e<≠𝕩)m
}
LitVal←(⊑("'"∾'"')⊐⊏)◶⟨1⊸⊑,1⊸↓,ReadNum⟩
LEBv ← {
b←128
l←⌊b⋆⁼1⌈𝕩
o←⍋⍋((↕¯1⊑⊢)-/⟜(≠↑0∾⊢))⟜(+`)1+l
o⊏l{f←×𝕨⋄(𝕨-1)(b⊸(×⟜f+|)∾𝕊⟜(⌊÷⟜b)○(f⊸/))⍟(∨´f)𝕩}𝕩
}
ErrMismatchedBrackets←{
Lcs ← ¯1 ⊑ 0˘∘⊢ {𝕩⌈⌈`𝕨+0∾˜1↓𝕩}˝ =⌜
_mis ← {"Missing "∾𝕗∾" "∾charSet⊏˜𝕘+⊢/˜≠∘⊣=⊒}
Msg ← >○≠◶⟨"opening"_mis_ 0, "closing"_mis_ 1˜⟩
0 !˜ 𝕨 (Lcs<⌊○≠)◶⟨Msg,"Malformed bracket nesting"⟩ 𝕩
}
ErrUndeclared←{
0 !˜ "Undefined identifier"∾(1<≠𝕩)/"s"
}
Parse ← {nv‿r←𝕨
g←⍋pd←+`p←𝕩(Mׯ1⋆2|-⟜⊑)bB⋄br←p×𝕩M 2≍˜2+⊑bB
p(=⟜1⊸/ErrMismatchedBrackets⍟≢1-˜=⟜¯1⊸/)○(g⊸⊏)𝕩
"Swapped open and closed brackets" ! 0≤(⊑g)⊑pd
sl←1⊸⌽⊸∨𝕩 M bL⋄sr←¯1⊸⌽⌾(g⊸⊏)sl⋄sa←sl∨sr
g⊏˜↩⍋g⊏sl⋄r×↩¬sa⋄o←p>0
r+↩(sa<𝕩=1+⊑bB)(⊣∧¬⊸∨=○(⌈`(1+↕∘≠)⊸×)⊢)(¯1⊸⌽⌾(g⊸⊏)3=r)∨1≤r
rev←⍋+`1+¯1↓g((¯1∾⊣)(⊣⍋⊸⊏⊏˜-⊏˜⟜⍋)⟜⍋1(+`∘∾-∾˜)⊏)o∨sl∨𝕩 M bS
gf←⍋fd←+`rev⊏br
rev⊏˜↩gf⋄fd⊏˜↩gf
𝕩⊏˜↩rev⋄bv←rev⊏br⋄b←/bv<0⋄fi←+`c←bv>0
FC←-⟜(≠↑0∾⊢)(c∾1)/·+`∾⟜0
H←0<1↓FC∘=
ft←(0∾1⊸H+2×2⊸H⌈2×3⊸H)(0‿3‿4‿5+5+⊑bI)⍋𝕩
fsc←ft⊏spc
r↩((1↓ft)⊏(1+2⊸≤)⊸/↕4)⌾(b⊸⊏)rev⊏r
id←/idm←(0⊸≤∧<⟜nv)xv←𝕩-vi⋄idx←id⊏𝕩⋄sp←/𝕩 M bI
ad←(⌈`↕∘≠⊸×𝕩 M bG)⊏𝕩=⊑bG
g↩⍋+`rev⊏p-br⋄gr←g⊏rev⋄sll←1+2÷˜0(<-○/>)gr⊏sr-sl⋄l←/g⊏𝕩=5+⊑bB
g⊏˜↩gs←⍋gr⊏sl⋄gr↩g⊏rev⋄𝕩⊏˜↩g⋄r⊏˜↩g⋄o⊏˜↩gr⋄si←/gr⊏sr>sl
gi←⍋g⋄l⊏↩⍋gs
s←𝕩 M bS⋄ps←s∨o∨gr⊏sl⋄a←𝕩 M 2≍˜⊑bG
r-↩ps∨a⋄op←r≥2⋄fe←(r≥1)∨1⌽r=3
tr←(⌈`↕∘≠⊸ׯ1⌽ps)⊏fe
ma←tr<(𝕩=1+⊑bG)∧1⌽fe
ro←op∨a<1⌽r=3⋄os←⌽↕∘≠⊸(⊣-⌈`∘×)⌽¬ro∨ma⋄at←(⊢+1+⊏⟜os)/a
aa←g⊏asn←¯1⌽+`gi⊏-⟜(≠↑0∾⊢)¯1↓/⁼(≠𝕩)∾˜at-1⋄r↩¯1¨⌾(aa⊸/)r
tf←(a≤○(⌈`(1+↕∘≠)⊸×)ps)∧(⊢∧2(|<≤)ps(⊢-⌈`∘×)+`)¬ro
opa←op>1↓0∾˜ps∨a
oa←⌽/opa⋄fa←/(1⌽aa)<(tf∨¬tr)∧(ro∧1⌽opa)<(r=1)∨op<¯1⌽opa
dy←fa⊏1↓0∾˜(𝕩≠⊑bO)∧(tr∧r≥0)∨ro<r=0
n←𝕩≥vi+nv⋄cn←/n∨𝕩≤¯1++´bC⋄u←∧⍷ob←cn⊏𝕩
lo←(o/𝕩)=4+⊑bB⋄ll←1+lo/1(↓--⊸↓)(o∾1)/+`(s∾0)-(1∾o)∧ps∾1
dr←/s>o+`⊸⊏0∾lo⋄rt←/𝕩=2+⊑bB
d←id⊏dec←idm∧ad∧asn⋄lc←FC dec
ixf←(⊏⟜(¯1∾c/gf)∾d⊸/⊏((≠𝕩)∾b⊏gf)˜)id⊏fi
ig←(⍋⊏⟜(ixx←∾⟜(d⊸/)idx))⊸⊏⍋ixf
"Multiple definitions" ! 1∧´ixx∨○((≠↑0∾⊢)⊸≠((≠id)⊸≤⊸/ig)⊏⊢)ixf
ig↩<⟜(≠id)⊸/(⍋+`∘⊏⟜(d∾-/˜d))⊸⊏ig
d⊏˜↩ig⋄ErrUndeclared∘/˜⍟(0∨´⊢)⟜(d<(≠↑0∾⊢)⊸≠)ig⊏idx
ui←(⌈`↕∘≠⊸×d)⊸⊏⌾(ig⊸⊏)id
ii←(ui⊏(fi⊏fsc)-(⌈`c⊸×)⊸¬+`dec)∾((sp⊏fi)⊏3×2|ft)++⟜(0⊸≤)2+sp⊏xv
idor←∾3⥊<is←id∾sp
idbc←⟨21+is⊏asn,(id-○(⊏⟜fd)ui)∾0¨sp,ii⟩
b⊏↩gi
or←⍋idor∾g⊏˜∾⟨cn,cn,b,b,rt,dr,l,l,si,si,at,oa+1⌈oa⊏os,(dy×⊏⟜os)⊸+fa+dy⟩
bc0←∾idbc∾⟨0¨cn,u⊐ob,15¨b,1+↕≠b⟩
bc←or⊏bc0∾∾⟨25¨rt,14¨dr,3+l⊏aa,ll,3+si⊏aa,sll,(11-⊑bG)+a/ma+𝕩,5+oa⊏r,(⊢+9×10⊸=)16+dy-7×fa⊏tr⟩
fs←(ft⊏⥊3≍⌜⟜⌽○↕2)∾¨((+`0∾1+⌊128⋆⁼1⌈bc)⊏˜/1∾or M bc0≍○≠rt)≍○<¨lc+fsc
⟨LEBv bc∾25,u,fs⟩
}
Compile←{
⟨t,r,nVar,lits⟩←Tokenize𝕩
⟨bc,u,blk⟩←nVar‿r Parse t
o←(u-(vi+nVar-≠𝕨)×u≥vi)⊏𝕨∾LitVal¨lits
⟨bc,o,blk⟩
}
|
