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-rw-r--r--src/language.ts99
1 files changed, 64 insertions, 35 deletions
diff --git a/src/language.ts b/src/language.ts
index 0721e09..c0360b8 100644
--- a/src/language.ts
+++ b/src/language.ts
@@ -1,16 +1,16 @@
export enum VowelHeight {
- Open,
- NearOpen,
- OpenMid,
- Mid,
- CloseMid,
- NearClose,
- Close,
+ Open = 'open',
+ NearOpen = 'nearOpen',
+ OpenMid = 'openMid',
+ Mid = 'mid',
+ CloseMid = 'closeMid',
+ NearClose = 'nearClose',
+ Close = 'close',
}
export enum VowelDepth {
- Front,
- Central,
- Back,
+ Front = 'front',
+ Central = 'central',
+ Back = 'back',
}
export interface VowelFeatures {
height: VowelHeight;
@@ -106,33 +106,33 @@ export function vowelFeaturesToIpa(features: VowelFeatures): string {
export enum ConsonantPlace {
- Bilabial,
- Labiodental,
- Linguolabial,
- Dental,
- Alveolar,
- Postalveolar,
- Retroflex,
- Palatal,
- Velar,
- Uvular,
- Pharyngeal,
- Glottal,
+ Bilabial = 'bilabial',
+ Labiodental = 'labiodental',
+ Linguolabial = 'labiolingual',
+ Dental = 'dental',
+ Alveolar = 'alveolar',
+ Postalveolar = 'postalveolar',
+ Retroflex = 'retroflex',
+ Palatal = 'palatal',
+ Velar = 'velar',
+ Uvular = 'uvular',
+ Pharyngeal = 'pharyngeal',
+ Glottal = 'glottal',
}
export enum ConsonantManner {
- Nasal,
- Plosive,
- SibilantAffricate,
- NonSibilantAffricate,
- SibilantFricative,
- NonSibilantFricative,
- Approximant,
- Tap,
- Trill,
- LateralAffricate,
- LateralFricative,
- LateralApproximant,
- LateralTap,
+ Nasal = 'nasal',
+ Plosive = 'plosive',
+ SibilantAffricate = 'sibilantAffricate',
+ NonSibilantAffricate = 'nonSibilantAffricate',
+ SibilantFricative = 'sibilantFricative',
+ NonSibilantFricative = 'nonSibilantFricative',
+ Approximant = 'approximant',
+ Tap = 'tap',
+ Trill = 'trill',
+ LateralAffricate = 'lateralAffricate',
+ LateralFricative = 'lateralFricative',
+ LateralApproximant = 'lateralApproximant',
+ LateralTap = 'lateralTap',
}
export interface ConsonantFeatures {
place: ConsonantPlace;
@@ -480,3 +480,32 @@ export function consonantFeaturesToIpa(features: ConsonantFeatures): string {
}
}
}
+
+
+export function isConsonantPossible(features: ConsonantFeatures): boolean {
+ return consonantFeaturesToIpa(features) !== '';
+}
+
+
+// get all of the consonants based on the features selected
+export function pickConsonants(
+ places: ConsonantPlace[],
+ manners: ConsonantManner[],
+ voicing: [boolean, boolean],
+): ConsonantFeatures[] {
+ return places.map<ConsonantFeatures[]>(
+ place => manners.map<ConsonantFeatures[]>(
+ manner => {
+ const [ unvoiced, voiced ] = voicing;
+ const result = [];
+ if (unvoiced) {
+ result.push({ place, manner, voice: false });
+ }
+ if (voiced) {
+ result.push({ place, manner, voice: true });
+ }
+ return result;
+ }
+ ).flat()
+ ).flat().filter(isConsonantPossible);
+}