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-rw-r--r--stdlib/source/lux/data/format/json.lux25
1 files changed, 16 insertions, 9 deletions
diff --git a/stdlib/source/lux/data/format/json.lux b/stdlib/source/lux/data/format/json.lux
index 1b2c65f97..43b029f60 100644
--- a/stdlib/source/lux/data/format/json.lux
+++ b/stdlib/source/lux/data/format/json.lux
@@ -243,18 +243,25 @@
(def: number~
(Lexer Number)
(do Monad<Lexer>
- [?sign (: (Lexer (Maybe Text))
- (lexer;opt (lexer;text "-")))
+ [?sign (: (Lexer Text)
+ (lexer;default ""
+ (lexer;text "-")))
digits (: (Lexer Text)
(lexer;many' lexer;digit))
- ?decimals (: (Lexer (Maybe Text))
- (lexer;opt (do @
- [_ (lexer;text ".")]
- (lexer;many' lexer;digit))))]
+ decimals (: (Lexer Text)
+ (lexer;default "0"
+ (do @
+ [_ (lexer;text ".")]
+ (lexer;many' lexer;digit))))
+ exp (: (Lexer Text)
+ (lexer;default ""
+ (do @
+ [mark (lexer;either (lexer;text "e") (lexer;text "E"))
+ sign (lexer;default "" (lexer;text "-"))
+ offset (lexer;many' lexer;digit)]
+ (wrap (format mark sign offset)))))]
(case (: (Error Real)
- (Real/decode (format (default "" ?sign)
- digits "."
- (default "0" ?decimals))))
+ (Real/decode (format ?sign digits "." decimals exp)))
(#;Left message)
(lexer;fail message)