Check for unknown characters (including unclosed quotes)

2 files changed, 12 insertions, 5 deletions

diff --git a/docs/bqn.js b/docs/bqn.js
index 19b9478f..b6aec939 100644
--- a/docs/bqn.js
+++ b/docs/bqn.js
@@ -146,9 +146,9 @@ let runtime = run(
 
 // Compiler
 let compile = run(
-  new 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,0,11,21,0,48,0,26,0,51,17,0,9,21,0,42,17,17,0,9,21,0,40,0,8,16,0,10,21,0,47,17,17,0,11,21,0,46,0,26,0,51,17,17,0,27,16,22,0,50,11,14,0,52,0,14,21,0,4,17,0,11,21,0,42,17,0,10,0,52,0,16,21,0,4,17,0,9,21,0,40,17,17,0,9,21,1,16,0,31,16,0,13,21,0,1,17,17,0,37,0,21,7,0,52,17,0,24,0,51,17,0,30,21,0,50,17,22,0,51,11,14,21,0,3,0,0,21,1,24,17,0,16,21,0,1,17,22,0,52,11,14,21,1,11,0,42,0,0,7,16,0,0,0,59,17,0,15,21,0,1,17,0,10,21,0,52,17,0,27,16,22,0,53,11,14,21,0,1,0,30,21,0,53,17,22,0,54,11,0,34,16,0,9,16,22,0,55,11,14,21,1,14,0,31,16,0,0,0,53,17,0,14,21,0,1,0,27,21,0,11,17,17,22,0,56,11,14,0,51,0,21,21,0,36,17,0,9,21,0,11,0,21,0,51,17,17,0,1,0,52,0,21,21,0,35,17,17,0,43,0,0,7,16,0,27,0,51,0,21,21,0,11,17,17,0,24,0,46,0,1,8,0,1,0,24,19,0,51,17,0,27,21,0,56,17,0,0,0,51,17,22,0,57,11,14,21,0,56,0,21,0,52,17,0,30,0,46,0,43,0,0,7,8,21,0,11,17,0,12,21,0,35,17,0,27,16,22,0,58,11,14,21,1,14,0,31,16,0,0,0,57,17,0,14,21,0,1,17,0,27,16,22,0,59,11,14,21,0,45,0,9,21,0,28,17,0,9,21,0,24,17,22,0,60,11,0,30,21,0,25,17,22,0,61,11,14,21,0,60,21,0,19,16,22,0,62,11,14,21,0,18,0,30,21,0,25,17,0,37,21,0,14,0,30,21,0,16,17,0,21,21,0,1,0,13,16,17,7,0,30,0,27,0,46,21,0,61,8,19,0,21,21,0,14,0,27,21,0,17,17,0,21,0,59,17,0,47,0,30,8,19,16,0,28,16,22,0,63,11,14,21,0,63,0,30,0,46,21,0,26,0,27,0,46,21,0,61,8,0,47,0,21,8,16,0,47,0,30,8,0,28,9,8,16,0,30,0,46,21,0,61,0,37,0,27,7,16,0,1,16,0,21,21,0,61,17,0,47,0,30,0,44,0,43,0,0,7,8,8,0,28,9,8,16,0,27,0,46,21,0,25,0,13,16,0,47,0,11,8,8,16,22,0,63,12,14,21,0,25,0,30,0,46,21,0,63,8,0,48,0,30,0,46,0,2,0,46,0,13,0,44,0,25,8,8,0,43,0,6,7,9,8,8,21,0,61,17,22,0,64,11,14,21,0,23,0,30,21,0,27,17,0,0,0,57,17,0,15,0,46,0,52,8,0,47,0,0,8,16,0,0,21,0,21,0,7,0,57,17,0,2,0,55,17,0,30,21,0,18,0,30,21,0,27,17,17,17,0,21,21,0,60,0,43,0,0,7,16,0,8,0,46,0,2,0,46,21,0,17,8,0,43,0,6,7,9,8,16,0,1,21,0,22,0,30,21,0,18,17,17,0,30,21,0,64,17,17,22,0,65,11,14,21,0,27,0,21,21,0,25,17,22,0,66,11,0,11,16,0,20,0,55,17,0,21,16,22,0,67,11,14,21,0,45,0,30,21,0,66,17,0,0,0,64,17,21,0,27,0,39,0,52,7,16,0,21,21,0,64,21,0,13,0,47,0,30,8,0,45,0,1,8,21,0,25,17,17,21,0,65,3,3,22,0,68,11,14,21,0,34,0,30,22,0,16,13,14,21,0,53,21,0,53,21,0,16,21,0,16,21,0,59,21,0,58,21,0,31,21,0,31,21,0,33,21,0,33,21,0,44,21,0,43,0,30,21,0,49,17,0,6,0,51,17,0,0,21,0,49,17,21,0,51,0,0,21,0,50,17,0,0,0,46,21,0,43,0,47,0,30,8,0,2,21,0,51,19,8,16,3,13,0,21,16,0,37,0,30,7,21,0,6,17,0,21,21,0,67,17,0,28,16,22,0,69,11,14,21,0,53,0,39,0,52,7,16,21,0,54,0,32,21,0,55,17,21,0,16,0,39,0,65,7,16,21,0,16,0,13,16,0,25,16,0,0,0,51,17,3,4,0,21,21,0,68,17,0,21,16,22,0,70,11,14,21,0,59,0,39,0,66,7,16,21,0,58,0,39,0,67,7,16,21,0,46,0,30,21,0,31,17,0,0,0,55,17,21,0,57,21,0,46,0,30,21,0,33,17,0,0,0,55,17,21,0,30,21,0,1,0,0,21,0,41,17,0,27,21,0,37,17,0,0,21,1,13,0,31,16,0,1,0,68,17,17,21,0,4,0,30,21,0,49,17,0,0,0,56,17,21,0,40,0,30,21,0,50,17,0,2,0,70,17,0,1,21,0,51,17,0,0,0,69,17,0,14,0,46,0,60,8,0,2,0,54,19,0,0,0,19,19,16,3,9,0,21,16,0,21,21,0,70,17,0,30,21,0,69,17,22,0,71,11,14,21,0,22,0,0,21,0,62,17,0,39,0,11,0,45,0,22,8,7,21,0,59,0,13,0,45,0,22,8,21,0,70,17,21,1,23,21,0,69,17,0,21,0,51,17,0,27,16,0,37,0,30,7,21,0,71,0,6,0,51,17,0,41,0,4,7,0,63,17,0,5,16,0,0,0,51,17,0,21,0,52,17,0,43,0,0,7,16,17,17,0,39,0,21,7,0,57,0,25,0,45,0,26,0,47,0,40,0,22,7,8,8,0,55,17,0,20,16,0,30,21,0,21,17,17,22,0,72,11,14,0,66,0,21,21,0,71,17,21,1,30,16,21,0,55,21,0,72,3,3,25,21,0,1,21,1,27,16,22,0,3,22,0,4,22,0,5,22,0,6,4,4,11,14,21,0,3,21,1,31,21,0,5,21,0,4,3,2,17,22,0,7,22,0,8,22,0,9,4,3,11,14,21,0,6,0,39,21,1,29,7,16,0,21,21,0,2,17,0,30,21,1,24,0,16,21,0,8,17,0,2,21,0,2,0,13,16,0,1,21,0,5,17,0,0,21,1,24,17,17,0,1,21,0,8,17,17,22,0,10,11,14,21,0,7,21,0,10,21,0,9,3,3,25,21,0,1,0,26,16,0,31,16,0,14,0,52,17,25,21,0,1,0,30,0,46,21,0,2,0,27,21,0,1,17,8,0,48,0,39,0,51,7,8,16,21,1,9,21,0,2,0,37,0,30,7,16,17,25,21,0,2,0,2,16,22,0,3,11,14,21,0,1,21,0,3,0,42,0,10,7,16,0,50,0,27,0,46,21,0,3,8,0,45,21,1,3,0,47,0,3,8,0,5,9,0,47,21,0,0,8,8,0,21,0,7,0,0,21,0,3,0,47,0,2,8,19,0,46,21,1,3,8,19,8,0,51,0,1,21,0,2,17,17,25])
+ ,[runtime[0],runtime[1],runtime[2],runtime[3],runtime[4],runtime[6],runtime[7],runtime[8],runtime[9],runtime[10],runtime[11],runtime[12],runtime[13],runtime[14],runtime[15],runtime[16],runtime[17],runtime[19],runtime[20],runtime[21],runtime[22],runtime[23],runtime[24],runtime[25],runtime[26],runtime[27],runtime[28],runtime[30],runtime[31],runtime[32],runtime[33],runtime[34],runtime[35],runtime[37],runtime[38],runtime[39],runtime[40],runtime[41],runtime[42],runtime[43],runtime[44],runtime[45],runtime[46],runtime[48],runtime[49],runtime[50],runtime[51],runtime[52],runtime[53],runtime[55],runtime[58],1,0,4,9,3,5,2,6,-1,10,3.14159265358979,Infinity,128,21,15,25,14,11,16,7,'\t','\n',str("0123456789"),str("ABCDEFGHIJKLMNOPQRSTUVWXYZ"),str("abcdefghijklmnopqrstuvwxyz"),str("+-×÷⋆√⌊⌈|¬∧∨<>≠=≤≥≡≢⊣⊢⥊∾≍↑↓↕⌽⍉/⍋⍒⊏⊑⊐⊒∊⍷⊔!"),str("˜˘¨⌜⁼´˝`"),str("∘○⊸⟜⌾⊘◶⎉⚇⍟"),str("⋄,"),str("←↩→"),str("(){}⟨⟩"),str("‿"),str("·"),str("𝕊𝕏𝕎𝔽𝔾𝕤𝕩𝕨𝕗𝕘"),str("¯.π∞"),str("_"),str(" "),str("Unclosed quote"),'\'','"',str("Unknown character"),str("s"),str(": "),'#',str("'")]
+ ,[[0,1,0,33],[0,0,443,3],[1,1,509,4],[0,0,602,30],[0,0,1784,13],[0,0,2106,6],[0,0,2212,73],[0,0,5253,11],[0,0,5376,3],[0,0,5391,3],[0,0,5431,4]]
 );
 let bqn = src => run.apply(null,compile(str(src),runtime));
 
diff --git a/src/c.bqn b/src/c.bqn
index 81520297..47eb9d44 100644
--- a/src/c.bqn
+++ b/src/c.bqn
@@ -21,7 +21,14 @@ charGroups←⟨
   " "∾tab               # Whitespace
 # #'" eliminated during tokenization
 ⟩
-CharCode←(∾charGroups){g←⍋𝕗⋄g⊏˜1-˜(g⊏𝕗)⍋⊢}
+ErrUnknownChars←{
+  "Unclosed quote"!¬∨´⟨''','"'⟩∊𝕩
+  ⟨"Unknown character","s"/˜1<≠𝕩,": ",𝕩⟩∾⊸!0
+}
+CharCode←(∾charGroups){
+  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⊸≤∧>)-⟜⊑
@@ -40,7 +47,7 @@ Tokenize←{
   lu←⍷lit←𝕩⊔˜1-˜(+`ToI⊑˘cb)×≠`ToI cb
   cl←f/ToI⊑∘⌽˘cb
 
-  c←CharCode f/𝕩
+  c←CharCode⌾((¬cl)⊸/) f/𝕩
   w←(≠↑0∾⊢)⊸<l←c M (⊑bD)≍+´1⊑¨bD‿bN‿bA
   i←(1-˜l×+`w)⊔c
   na←≠alph⋄us←¯1++´bA