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authorEduardo Julian2018-08-23 07:45:16 -0400
committerEduardo Julian2018-08-23 07:45:16 -0400
commit27eed2a94ff9446014564958439fc5381584568b (patch)
tree6f501d2b178c61325c1a4eaeeb447ab257c99d0e
parentcfcd6df48edb96262eab3f0cdffc718b2ec4db9a (diff)
Added Rev parsing.
-rw-r--r--stdlib/source/lux/compiler/default/syntax.lux71
1 files changed, 33 insertions, 38 deletions
diff --git a/stdlib/source/lux/compiler/default/syntax.lux b/stdlib/source/lux/compiler/default/syntax.lux
index c2d2bff29..7dc992471 100644
--- a/stdlib/source/lux/compiler/default/syntax.lux
+++ b/stdlib/source/lux/compiler/default/syntax.lux
@@ -84,29 +84,6 @@
(def: sign^ (l.one-of "+-"))
-(do-template [<name> <tag> <lexer> <codec>]
- [(def: #export (<name> where)
- Syntax
- (do p.Monad<Parser>
- [chunk <lexer>]
- (case (:: <codec> decode chunk)
- (#.Left error)
- (p.fail error)
-
- (#.Right value)
- (wrap [(update@ #.column (n/+ (text.size chunk)) where)
- [where (<tag> value)]]))))]
-
- [int #.Int
- (l.and sign^ rich-digits^)
- number.Codec<Text,Int>]
-
- [rev #.Rev
- (l.and (l.one-of ".")
- rich-digits^)
- number.Codec<Text,Rev>]
- )
-
(def: #export (frac where)
Syntax
(do p.Monad<Parser>
@@ -156,7 +133,6 @@
(function (ast' where)
($_ p.either
(..frac where)
- (..rev where)
)))
(type: (Simple a)
@@ -260,6 +236,21 @@
g!_
body))
+(def: (read-text [where offset source-code])
+ (Simple Code)
+ (case ("lux text index" source-code (static ..text-delimiter) offset)
+ (#.Some end)
+ (let [content (!clip offset end source-code)]
+ (<| (!guarantee-no-new-lines content)
+ (#error.Success [[(update@ #.column (n/+ (!n/- offset end)) where)
+ (!inc end)
+ source-code]
+ [where
+ (#.Text content)]])))
+
+ _
+ (ex.throw unrecognized-input where)))
+
(def: digit-bottom Nat (!dec (char "0")))
(def: digit-top Nat (!inc (char "9")))
@@ -332,6 +323,18 @@
_
(!discrete-output number.Codec<Text,Int> #.Int))))
+(def: (parse-rev start [where offset source-code])
+ (-> Offset (Simple Code))
+ (loop [end offset]
+ (case ("lux text char" source-code end)
+ (#.Some char)
+ (if (!digit?+ char)
+ (recur (!inc end))
+ (!discrete-output number.Codec<Text,Rev> #.Rev))
+
+ _
+ (!discrete-output number.Codec<Text,Rev> #.Rev))))
+
(template: (!parse-int offset where source-code)
(let [g!offset/1 (!inc offset)]
(<| (!with-char source-code g!offset/1 g!char/1)
@@ -477,19 +480,7 @@
## Text
(^ (char (~~ (static ..text-delimiter))))
- (let [offset/1 (!inc offset)]
- (case ("lux text index" source-code (static ..text-delimiter) offset/1)
- (#.Some end)
- (let [content (!clip offset/1 end source-code)]
- (<| (!guarantee-no-new-lines content)
- (#error.Success [[(update@ #.column (n/+ (!n/- offset/1 end)) where)
- (!inc end)
- source-code]
- [where
- (#.Text content)]])))
-
- _
- (ex.throw unrecognized-input where)))
+ (read-text <consume-1>)
## Special code
(^ (char (~~ (static ..sigil))))
@@ -525,7 +516,11 @@
<failure>))))
(^ (char (~~ (static ..name-separator))))
- (!parse-short-name current-module <consume-1> where #.Identifier)
+ (let [offset/1 (!inc offset)]
+ (<| (!with-char source-code offset/1 char/1)
+ (if (!digit? char/1)
+ (parse-rev offset [where (!inc offset/1) source-code])
+ (!parse-short-name current-module <consume-1> where #.Identifier))))
(^template [<sign>]
(^ (char <sign>))