refactor: simplifies quantifier logic + moves stuff around

1 files changed, 1 insertions, 105 deletions

diff --git a/src/index.ts b/src/index.ts
index 2ea40eb..82eefe8 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,106 +1,2 @@
-import { constant, pipe } from 'fp-ts/function'
-import { chain, fold, right } from 'fp-ts/lib/Either'
-import { match } from './utils'
-import {
-  delimited,
-  many1,
-  mapTo,
-  optional,
-  or,
-  Parser,
-  ParserResult,
-  symbol,
-  tuple3,
-} from './parser'
 
-export const start = mapTo(symbol('^'), constant({ tag: 'Start' } as Expr))
-export const end = mapTo(symbol('$'), constant({ tag: 'End' } as Expr))
-export const anyItem = mapTo(symbol('.'), constant({ tag: 'AnyItem' } as Expr))
-export const nextItem = mapTo(
-  symbol(','),
-  constant({ tag: 'NextItem' } as Expr)
-)
-export const anyString = mapTo(
-  symbol('\\s'),
-  constant({ tag: 'AnyString' } as Expr)
-)
-export const anyNumber = mapTo(
-  symbol('\\n'),
-  constant({ tag: 'AnyNumber' } as Expr)
-)
-export const anyBool = mapTo(
-  symbol('\\b'),
-  constant({ tag: 'AnyBool' } as Expr)
-)
-export const truthy = mapTo(symbol('\\T'), constant({ tag: 'Truthy' } as Expr))
-export const falsey = mapTo(symbol('\\F'), constant({ tag: 'Falsey' } as Expr))
-
-type Expr =
-  | { tag: 'Start' }
-  | { tag: 'End' }
-  | { tag: 'Optional'; expr: Expr }
-  | { tag: 'OneOrMore'; expr: Expr }
-  | { tag: 'ZeroOrMore'; expr: Expr }
-  | { tag: 'NextItem' }
-  | { tag: 'AnyItem' }
-  | { tag: 'Or' }
-  | { tag: 'AnyString' }
-  | { tag: 'AnyNumber' }
-  | { tag: 'AnyBool' }
-  | { tag: 'Truthy' }
-  | { tag: 'Falsey' }
-  | { tag: 'Group'; exprs: Expr[] }
-
-export const wrapQuantifiers: (e: ParserResult<Expr>) => ParserResult<Expr> =
-  chain(([expr, input]) =>
-    pipe(
-      input,
-      or([symbol('*'), symbol('+'), symbol('?')]),
-      fold(
-        () => right([expr, input]),
-        ([c, inp]) =>
-          pipe(
-            c,
-            match<Expr, string>({
-              '*': () => ({ tag: 'ZeroOrMore', expr }),
-              '+': () => ({ tag: 'OneOrMore', expr }),
-              '?': () => ({ tag: 'Optional', expr }),
-              _: () => expr,
-            }),
-            (ex) => right([ex, inp])
-          )
-      )
-    )
-  )
-
-export const expressionP: Parser<Expr> = (input: string) =>
-  pipe(
-    input,
-    or([
-      mapTo(
-        delimited(symbol('('), many1(expressionP), symbol(')')),
-        (exprs) => ({ tag: 'Group', exprs } as Expr)
-      ),
-      nextItem,
-      anyItem,
-      anyString,
-      anyNumber,
-      anyBool,
-      truthy,
-      falsey,
-    ]),
-    wrapQuantifiers
-  )
-
-export const parser = tuple3(optional(start), many1(expressionP), optional(end))
-
-/*
-
-{3,6} => 3 to 6 instances
-(> 5) => number greater than
-(< 5) => number less than
-[name x] => apply x on property `name`
-| => or
-/x/ => match regular expression (string values in list)
-
-*/
+export * from './parser';