This library needs some feedback before getting its first stable release!
A small library to convert a polytonic greek string from/into various representations.
In order to use this library in your project, simply type:
npm install greek-conversion
Import the library's functions as needed:
// ES6 modules syntax
import { KeyType, toTransliteration } from 'greek-conversion'
// CommonJS syntax
const gc = require('greek-conversion')
Then use them:
// Let's transliterate some Thucydides
toTransliteration(
'Ἕλλησιν ἐγένετο καὶ μέρει τινὶ τῶν βαρβάρων, ' + // Hellēsin egeneto kai
'ὡς δὲ εἰπεῖν καὶ ἐπὶ πλεῖστον ἀνθρώπων.', // merei tini tōn barbarōn,
KeyType.GREEK, // hōs de eipein kai epi
{ removeDiacritics: true } // pleiston anthrōpōn.
)
This is primarily intended for the use of the library in the browser in the absence of a modern development environment.
You can either import the library from the unpkg CDN (https://www.unpkg.com/greek-conversion
) or download the latest release on Github then include greekConversion.min.js
into your project (but you could experience a CORS issue in this case and need to use a local server to run your project).
As the library is built as a module, the <script>
tag needs to be set as type="module"
(which is supported by all modern browsers).
You can then call the library's functions as exemplified below:
<script type="module">
import { KeyType, toGreek } from 'https://www.unpkg.com/greek-conversion' // or './greekConversion.min.js'
console.log(toGreek('anthrōpos', KeyType.TRANSLITERATION)) // ανθρωπος
</script>
This library provides three main functions to convert a greek string: toBetaCode
, toGreek
& toTransliteration
. You can refer to the conversion chart for further information about the expected input & output.
Functions signature is consistently:
str: string,
fromType: KeyType,
options: Preset | MixedPreset | IConversionOptions = {}
The fromType
parameter can be set to BETA_CODE | GREEK | TRANSLITERATION
(e.g. KeyType.GREEK
).
The options
parameter can be filled with:
- a
Preset
; - a user-defined
IConversionOptions
object; - a preset mixed with user-defined conversion options (
[Preset, IConversionOptions]
).
The available presets are:
- For beta code:
Preset | Description |
---|---|
MODERN_BC |
greek-conversion 's own modernized style |
- For transliteration:
Preset | Description |
---|---|
ALA_LC |
American Library Association – Library of Congress |
BNF |
Bibliothèque nationale de France |
SBL |
Society of Biblical Literature |
The IConversionOptions
interface provides the following controls over the conversion process:
removeDiacritics?: boolean, // remove diacritics, except those that represent letters
removeExtraWhitespace?: boolean, // remove potential extra whitespace
setGreekStyle?: {
disableBetaVariant?: boolean, // disable the typographic variant 'ϐ' [U+03D0]
useLunateSigma?: boolean // use the lunate sigma rather than the regular form
},
setTransliterationStyle?: {
useCxOverMacron?: boolean, // use a circumflex rather than a macron for 'η', 'ω', etc
xi_ks?: boolean, // transliterate 'ξ' as 'ks' (defaults to: 'x')
rho_rh?: boolean, // transliterate 'ρ' as 'rh' even if it doesn't have a rough breathing
chi_kh?: boolean, // transliterate 'χ' as 'kh' (defaults to: 'ch')
upsilon_y?: boolean, // transliterate 'υ' as 'y' (defaults to: 'u')
lunatesigma_s?: boolean // transliterate 'ϲ' [U+03F2] as 's' (defaults to: 'c')
},
useAdditionalChars?: // extend the default mapping with additional chars
AdditionalChar[] | // (use AdditionalChar.ALL to enable the whole set)
AdditionalChar
toBetaCode('ανθρωπος', KeyType.GREEK) // anqrwpos
toGreek('A)/i+da', KeyType.BETA_CODE) // Ἄϊδα
toTransliteration('ἄϋλος', KeyType.GREEK, { removeDiacritics: true }) // aulos
toTransliteration('ἀΰπνους νύκτας ἴαυον', KeyType.GREEK, Preset.BNF) // aǘpnous núktas íauon
toTransliteration('ἀΰπνους νύκτας ἴαυον', KeyType.GREEK, Preset.ALA_LC) // aypnous nyktas iauon
toTransliteration('ἀΰπνους νύκτας ἴαυον', KeyType.GREEK, [
Preset.ALA_LC,
{ removeDiacritics: false }
]) // aÿ́pnous nýktas íauon
const style = {
setGreekStyle: {
useLunateSigma: true
}
}
toGreek('ICHTHUS ZŌNTŌN', KeyType.TRANSLITERATION) // ἸΧΘΥΣ ΖΩΝΤΩΝ
toGreek('ICHTHUS ZŌNTŌN', KeyType.TRANSLITERATION, style) // ἸΧΘΥϹ ΖΩΝΤΩΝ
const style = {
setTransliterationStyle: {
useCxOverMacron: true,
chi_kh: true
}
}
toTransliteration('τέχνη', KeyType.GREEK) // téchnē
toTransliteration('τέχνη', KeyType.GREEK, style) // tékhnê
You can use the GreekString
object if you want to manage several representations of a greek string.
As multiple conversions can be destructive, OOP helps you to keep multiple representations of a greek string in memory without doing multiple potentialy-destructive conversions or creating a lot of variables. Conversions are made only as necessary.
GreekString
constructor is:
str: string,
fromType: KeyType,
options?: Preset | MixedPreset | IConversionOptions
You can access each representation by calling the following properties: betaCode
, greek
& transliteration
.
Note that the options
are also applied to the input string in order to have truly equivalent representations. You can retrieve the original string using the source
property.
import { GreekString, KeyType } from 'greek-conversion'
const person = new GreekString(
'ἄνθρωπος',
KeyType.GREEK,
{ removeDiacritics: true }
)
person.betaCode // anqrwpos
person.greek // ανθρωπος
person.transliteration // anthrōpos
person.source // ἄνθρωπος
Applies beta/sigma variants and transforms πσ
into ψ
.
This function evaluates booleans disableBetaVariant
& useLunateSigma
provided by the IGreekStyle
interface.
Removes all the diacritics from a given string. The set of diacritical marks depends of the greek string representation.
Removes beta and sigma variants.
This is what you should know before using this library:
- Greek numerals are not supported yet (see Add support for greek numerals).
- Greek output produces monotonic greek
tonos
and not polytonic greekoxia
(see Tonos/oxia issue).
Copyright (C) 2021, 2022, 2023, 2024 Antoine Boquet
This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/agpl-3.0.fr.html.