Implement Akshara Gana identification using trie

aksharagana.js

@@ -0,0 +1,47 @@
+import { Trie } from './trie.js'
+import 'https://code.jquery.com/jquery-3.4.1.js';
+import { AksharaTokenizerKannada } from 'https://cdn.jsdelivr.net/gh/vinayakakv/[email protected]/akshara_tokenizer.js'
+
+class AksharaGanaIdentifier {
+	constructor(chandas_file_path) {
+		this.trie = new Trie();
+		this.tokenizer = new AksharaTokenizerKannada();
+		$.getJSON(chandas_file_path).then(data => {
+			data.forEach(chandas => {
+				let pattern = this.tokenizer.tokenize(chandas['pattern']).map(
+					token => {
+						if (token['vyamjana'] == 'ಲ')
+							return '0';
+						else if (token['vyamjana'] == 'ಗ')
+							return '1';
+						else
+							return [
+								'ನ',
+								'ಸ',
+								'ಜ',
+								'ಯ',
+								'ಭ',
+								'ರ',
+								'ತ',
+								'ಮ'].indexOf(token['vyamjana']).toString(2).padStart(3, 0);
+					}
+				).join('');
+				this.trie.insert(pattern, {
+					name: chandas["child_chandas"],
+					parent: chandas["parent_chandas"],
+					pattern: chandas["pattern"],
+					matraCount: chandas["characters"],
+					yatiPosition: chandas["yati"],
+					mention: chandas["chandombudi_source"]
+				});
+			});
+		})
+	}
+
+
+	identify(pattern) {
+		return this.trie.get(pattern);
+	}
+}
+
+export { AksharaGanaIdentifier }