Explanatory haddocks for Atom helpers
Getty Ritter
7 years ago
| 1 | 1 | module Data.SCargot.Atom |
| 2 |
( |
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| 2 | ( -- $intro | |
| 3 | ||
| 4 | atom | |
| 3 | 5 | , mkAtomParser |
| 4 | 6 | ) where |
| 5 | 7 | |
| 18 | 20 | -- possible atom parsers, which will be tried in sequence before failing. |
| 19 | 21 | mkAtomParser :: [Parser atom] -> SExprParser atom (SExpr atom) |
| 20 | 22 | mkAtomParser = mkParser . choice |
| 23 | ||
| 24 | {- $intro | |
| 25 | ||
| 26 | This module defines small convenience functions for building an atom | |
| 27 | type from several individual parsers. This is easy to do without these | |
| 28 | functions, but these functions communicate intent more directly: | |
| 29 | ||
| 30 | > data Atom | |
| 31 | > = Ident Text | |
| 32 | > | Num Integer | |
| 33 | > | |
| 34 | > myParser :: SExprParser Atom (SExpr Atom) | |
| 35 | > myParser = mkAtomParser | |
| 36 | > [ atom Ident parseR7RSIdent | |
| 37 | > , atom Num signedDecNumber | |
| 38 | > ] | |
| 39 | ||
| 40 | -} | |