diff options
Diffstat (limited to 'new-luxc/source/luxc/parser.lux')
| -rw-r--r-- | new-luxc/source/luxc/parser.lux | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/new-luxc/source/luxc/parser.lux b/new-luxc/source/luxc/parser.lux index 1114ba76c..7670d72c7 100644 --- a/new-luxc/source/luxc/parser.lux +++ b/new-luxc/source/luxc/parser.lux @@ -76,6 +76,16 @@ (l;either (single-line-comment^ where) (multi-line-comment^ where))) +(def: (padding^ where) + (-> Cursor (Lexer Cursor)) + (l;either (do Monad<Lexer> + [[comment where] (comment^ where)] + (padding^ where)) + (do Monad<Lexer> + [[white-space where] (space^ where)] + (wrap where)) + )) + (def: escaped-char^ (Lexer [Text Char]) (l;after (l;char #"\\") @@ -156,11 +166,7 @@ raw-char^)] (wrap [[where (#;CharS value)] (|> where - (update@ #;column (function [column] - ($_ n.+ - +3 - column - (text;size chunk)))))]))) + (update@ #;column (|>. ($_ n.+ +3 (text;size chunk)))))]))) (def: (text^ where) (-> Cursor (Lexer [AST Cursor])) @@ -174,7 +180,7 @@ next-line-start? false] (let [next-line (do @ [_ (l;text "\n")] - (recur text-read + (recur (format text-read "\n") (|> where (update@ #;line n.inc) (set@ #;column +0)) @@ -194,8 +200,8 @@ (update@ #;column (n.+ offset-size))) false) (l;fail (format "Each line of a multi-line text must have an appropriate offset!\n" - "Expected: " (%i (nat-to-int offset-column)) "\n" - " Actual: " (%i (nat-to-int offset-size)) "\n"))))) + "Expected: " (%i (nat-to-int offset-column)) " columns.\n" + " Actual: " (%i (nat-to-int offset-size)) " columns.\n"))))) ($_ l;either (do @ [normal (l;many' (l;none-of "\\\"\n"))] @@ -233,8 +239,7 @@ (recur (V;add elem elems) where')) (do @ - [[_ where'] (l;either (space^ where) - (comment^ where)) + [where' (padding^ where) _ (l;text <close>)] (wrap [(V;to-list elems) (|> where' @@ -261,8 +266,7 @@ (recur (V;add [key val] elems) where')) (do @ - [[_ where'] (l;either (space^ where) - (comment^ where)) + [where' (padding^ where) _ (l;text "}")] (wrap [(V;to-list elems) (|> where' @@ -274,7 +278,7 @@ (Lexer Text) (do Monad<Lexer> [#let [digits "0123456789" - delimiters "()[]{}#;" + delimiters "()[]{}#;\"" space "\t\v \n\r\f" head-lexer (l;none-of (format digits delimiters space)) tail-lexer (l;some' (l;none-of (format delimiters space)))] @@ -315,7 +319,7 @@ [[value length] <lexer>] (wrap [[where (<tag> value)] (|> where - (update@ #;column (function [column] ($_ n.+ column <extra> length))))])))] + (update@ #;column (|>. ($_ n.+ <extra> length))))])))] [symbol^ #;SymbolS ident^ +0] [tag^ #;TagS (l;after (l;char #"#") ident^) +1] @@ -324,19 +328,18 @@ (def: #export (ast^ where) (-> Cursor (Lexer [AST Cursor])) (do Monad<Lexer> - [[_ where] (l;either (space^ where) - (comment^ where))] + [where (padding^ where)] ($_ l;either + (form^ where ast^) + (tuple^ where ast^) + (record^ where ast^) (bool^ where) (nat^ where) (real^ where) (int^ where) (deg^ where) - (char^ where) - (text^ where) (symbol^ where) (tag^ where) - (form^ where ast^) - (tuple^ where ast^) - (record^ where ast^) + (char^ where) + (text^ where) ))) |