glisbn

A ISBN utility library.

Types

IsbnError

pub type IsbnError {
  InvalidIsbn
  InvalidCheckdigit
  InvalidLength
  RegistrantNotFound
}

Constructors

```
InvalidIsbn
```
```
InvalidCheckdigit
```
```
InvalidLength
```
```
RegistrantNotFound
```

Functions

get_checkdigit

</>

pub fn get_checkdigit(isbn: String) -> Result(String, IsbnError)

Takes an ISBN and returns its checkdigit.

Examples

get_prefix("9788535902778")
// -> Ok("8")

get_checkdigit("2-1234-5680-2")
// -> Ok("2")

get_checkdigit("1str")
// -> Error(InvalidIsbn)

get_checkdigit("887385107X")
// -> Ok("X")

get_prefix

</>

pub fn get_prefix(isbn: String) -> Result(String, IsbnError)

Takes an ISBN and returns its prefix.

Examples

get_prefix("9788535902778")
// -> Ok("978-85")

get_prefix("2-1234-5680-2")
// -> Ok("978-2")

get_prefix("1str")
// -> Error(InvalidIsbn)

get_publication_element

</>

pub fn get_publication_element(
  isbn: String,
) -> Result(String, IsbnError)

Takes an ISBN and returns its publication element.

Examples

get_publication_element("978-1-86197-876-9")
// -> Ok("876")

get_publication_element("9789529351787")
// -> Ok("5178")

get_publication_element("1str")
// -> Error(InvalidIsbn)

get_publisher_zone

</>

pub fn get_publisher_zone(
  isbn: String,
) -> Result(String, IsbnError)

Takes an ISBN and returns its publisher zone.

Examples

get_publisher_zone("9788535902778")
// -> Ok("Brazil")

get_publisher_zone("2-1234-5680-2")
// -> Ok("French language")

get_publisher_zone("1str")
// -> Error(InvalidIsbn)

get_registrant_element

</>

pub fn get_registrant_element(
  isbn: String,
) -> Result(String, IsbnError)

Takes an ISBN and returns its registrant element.

Examples

get_registrant_element("9788535902778")
// -> Ok("359")

get_registrant_element("978-1-86197-876-9")
// -> Ok("86197")

get_registrant_element("1str")
// -> Error(InvalidIsbn)

hyphenate

</>

pub fn hyphenate(isbn: String) -> Result(String, IsbnError)

Takes an ISBN (10 or 13) and hyphenates it.

Examples

hyphenate("9788535902778")
// -> Ok("978-85-359-0277-8")

hyphenate("0306406152")
// -> Ok("0-306-40615-2")

hyphenate("978-5-12345-678")
// -> Error(InvalidIsbn)

is_checkdigit_valid

</>

pub fn is_checkdigit_valid(isbn: String) -> Bool

Takes an ISBN (10 or 13) and checks its validity by its checkdigit.

Examples

is_checkdigit_valid("85-359-0277-5")
// -> True

is_checkdigit_valid("978-5-12345-678-1")
// -> True

is_checkdigit_valid("978-5-12345-678")
// -> False

is_hyphens_correct

</>

pub fn is_hyphens_correct(isbn: String) -> Bool

Checks if an ISBN (10 or 13) code is correctly hyphenated. If ISBN incorrect, that count as no.

Examples

is_hyphens_correct("978-85-359-0277-8")
// -> True

is_hyphens_correct("0-306-40615-2")
// -> True

is_hyphens_correct("97-8853590277-8")
// -> False

is_hyphens_correct("03-064-06152")
// -> False

is_hyphens_correct("str")
// -> False

is_valid

</>

pub fn is_valid(isbn: String) -> Bool

Takes an ISBN (10 or 13) and checks its validity by checking the checkdigit, length and characters.

Examples

is_valid("978-5-12345-678-1")
// -> True

is_valid("85-359-0277-5")
// -> True

is_valid("85-359-0277")
// -> False

is_valid("str")
// -> False

isbn10_checkdigit

</>

pub fn isbn10_checkdigit(
  isbn: String,
) -> Result(String, IsbnError)

Takes an ISBN 10 code as string, returns its check digit.

Examples

isbn10_checkdigit("85-359-0277")
// -> Ok("5")

isbn10_checkdigit("5-02-013850")
// -> Ok("9")

isbn10_checkdigit("0str")
// -> Error(InvalidIsbn)

/// ```gleam isbn10_checkdigit(“887385107”) // -> Ok(“X”)

isbn10_to_13

</>

pub fn isbn10_to_13(isbn: String) -> Result(String, IsbnError)

Takes an ISBN 10 and converts it to ISBN 13.

Examples

isbn10_to_13("85-359-0277-5")
// -> Ok("9788535902778")

isbn10_to_13("0306406152")
// -> Ok("9780306406157")

isbn10_to_13("1str")
// -> Error(InvalidIsbn)

isbn13_checkdigit

</>

pub fn isbn13_checkdigit(
  isbn: String,
) -> Result(String, IsbnError)

Takes an ISBN 13 code as string, returns its check digit.

Examples

isbn13_checkdigit("978-5-12345-678"")
// -> Ok("1")

isbn13_checkdigit("978-0-306-40615")
// -> Ok("7")

isbn13_checkdigit("1str")
// -> Error(InvalidIsbn)

isbn13_to_10

</>

pub fn isbn13_to_10(isbn: String) -> Result(String, IsbnError)

Takes an ISBN 13 and converts it to ISBN 10.

Examples

isbn13_to_10("9788535902778")
// -> Ok("8535902775")

isbn13_to_10("9780306406157")
// -> Ok("0306406152")

isbn13_to_10("1str")
// -> Error(InvalidIsbn)