commit f59b933a322136af282ef4f5d9db446bca07295f · dunkirk.sh/gleam-bible-search

+99 -8
src/bible_search.gleam
···

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       import gleam/int

     

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       import gleam/io

     

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       import gleam/list

     

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       import gleam/result

     

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       import gleam/string

     

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       import input.{input}

     

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       import simplifile

     
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         Reference(book: String, chapter: Int, verse: Int)

     

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       }

     

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       pub type Phase {

     

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         Book

     

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         Chapter

     

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         Verse

     

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         Done

     

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       }

     

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       pub type ScanState {

     

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         ScanState(

     

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           phase: Phase,

     

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           ref: Reference,

     

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           found_book: Bool,

     

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           found_chapter: Bool,

     

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           verse_text: Result(String, String),

     

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         )

     

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       }

     

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       pub fn parse_reference(input: String) -> Result(Reference, String) {

     

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         let parts = string.split(input, on: " ")

     

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                 case int.parse(verse_s) {

     

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                   Ok(verse) ->

     

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                     Ok(Reference(book: string.uppercase(book), chapter:, verse:))

     

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                   Error(_) -> Error("Invalid verse" <> verse_s)

     

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                   Error(_) -> Error("Invalid verse: " <> verse_s)

     

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                 }

     

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               Error(_) -> Error("Invalid chapter" <> chapter_s)

     

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               Error(_) -> Error("Invalid chapter: " <> chapter_s)

     

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             }

     

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           [book_p1, book_p2, chapter_s, verse_s] ->

     

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             case int.parse(chapter_s) {

     

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               Ok(chapter) ->

     

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                 case int.parse(verse_s) {

     

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                   Ok(verse) ->

     

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                     Ok(Reference(

     

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                       book: string.uppercase(book_p1 <> " " <> book_p2),

     

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                       chapter:,

     

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                       verse:,

     

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                     ))

     

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                   Error(_) -> Error("Invalid verse: " <> verse_s)

     

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                 }

     

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               Error(_) -> Error("Invalid chapter: " <> chapter_s)

     

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             }

     

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           _ -> Error("invalid parse")

     

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         }

     

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       }

     
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         let assert Ok(reference) = parse_reference(search)

     

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         list.each(biblelines, fn(line) {

     

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           case line {

     

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             "THE BOOK OF " <> book if book == reference.book -> io.println(book)

     

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             _ -> io.print("")

     

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           }

     

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         })

     

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         let inital =

     

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           ScanState(

     

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             phase: Book,

     

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             ref: reference,

     

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             found_book: False,

     

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             found_chapter: False,

     

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             verse_text: Error("Verse not found"),

     

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           )

     

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         let result =

     

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           list.fold(biblelines, inital, fn(state, line) -> ScanState {

     

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             case state.phase {

     

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               Done -> state

     

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               Book ->

     

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                 case line {

     

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                   "THE BOOK OF " <> book ->

     

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                     case book == state.ref.book {

     

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                       True -> ScanState(..state, phase: Chapter, found_book: True)

     

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                       False -> state

     

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                     }

     

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                   _ -> state

     

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                 }

     

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               Chapter ->

     

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                 case line {

     

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                   "CHAPTER " <> chapter ->

     

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                     case result.unwrap(int.parse(chapter), 0) == state.ref.chapter {

     

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                       True -> ScanState(..state, phase: Verse, found_chapter: True)

     

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                       False -> state

     

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                     }

     

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                   _ -> state

     

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                 }

     

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               Verse ->

     

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                 fn() {

     

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                   let parts = string.split(line, " ")

     

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                   case parts {

     

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                     [first, ..rest] ->

     

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                       case result.unwrap(int.parse(first), 0) == state.ref.verse {

     

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                         True ->

     

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                           ScanState(

     

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                             ..state,

     

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                             phase: Done,

     

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                             verse_text: Ok(string.join(rest, " ")),

     

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                           )

     

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                         False -> state

     

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                       }

     

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                     _ -> state

     

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                   }

     

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                 }()

     

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             }

     

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           })

     

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         case result.verse_text {

     

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           Ok(text) ->

     

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             io.println(

     

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               result.ref.book

     

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               <> " "

     

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               <> int.to_string(result.ref.chapter)

     

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               <> ":"

     

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               <> int.to_string(result.ref.chapter)

     

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               <> " "

     

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               <> text,

     

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             )

     

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           Error(e) -> io.println_error(e)

     

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         }

     

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       }