From b3d7e4aa4b646c082769b8305f179988a946493b Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Sun, 7 May 2017 20:10:14 -0400
Subject: - Added underscore separators ( _ ) for digits in the parser for the
 new compiler.

---
 new-luxc/source/luxc/parser.lux | 41 +++++++++++++++++++++++++++++++----------
 1 file changed, 31 insertions(+), 10 deletions(-)

diff --git a/new-luxc/source/luxc/parser.lux b/new-luxc/source/luxc/parser.lux
index c9ba89b75..d76050860 100644
--- a/new-luxc/source/luxc/parser.lux
+++ b/new-luxc/source/luxc/parser.lux
@@ -206,6 +206,22 @@
 ## These are very simple parsers that just cut chunks of text in
 ## specific shapes and then use decoders already present in the
 ## standard library to actually produce the values from the literals.
+(def: rich-digit
+  (Lexer Char)
+  (l;either l;digit
+            (l;char #"_")))
+
+(def: rich-digits
+  (Lexer Text)
+  (l;seq' (l/map char;as-text l;digit)
+          (l;some' rich-digit)))
+
+(def: (without-separators raw)
+  (-> (Lexer Text) (Lexer Text))
+  (do Monad<Lexer>
+    [input raw]
+    (wrap (text;replace-all "_" "" input))))
+
 (do-template [<name> <tag> <lexer> <codec>]
   [(def: #export (<name> where)
      (-> Cursor (Lexer [Cursor Code]))
@@ -224,25 +240,30 @@
    bool;Codec<Text,Bool>]
   
   [parse-nat #;Nat
-   (l;seq' (l;text "+") (l;many' l;digit))
+   (without-separators
+    (l;seq' (l;text "+")
+            rich-digits))
    number;Codec<Text,Nat>]
   
   [parse-int #;Int
-   (l;seq' (l;default "" (l;text "-"))
-           (l;many' l;digit))
+   (without-separators
+    (l;seq' (l;default "" (l;text "-"))
+            rich-digits))
    number;Codec<Text,Int>]
   
   [parse-real #;Real
-   ($_ l;seq'
-       (l;default "" (l;text "-"))
-       (l;many' l;digit)
-       (l;text ".")
-       (l;many' l;digit))
+   (without-separators
+    ($_ l;seq'
+        (l;default "" (l;text "-"))
+        rich-digits
+        (l;text ".")
+        rich-digits))
    number;Codec<Text,Real>]
   
   [parse-deg #;Deg
-   (l;seq' (l;text ".")
-           (l;many' l;digit))
+   (without-separators
+    (l;seq' (l;text ".")
+            rich-digits))
    number;Codec<Text,Deg>]
   )
 
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