(third) Pass options to RuntimeValues, add NUMBER

Author: stasm

experiments/stasm/third/README.md

@@ -72,6 +72,7 @@ Run each example individually:
     npm run example glossary
     npm run example phrases
     npm run example list
+    npm run example number
 
 ## References
 

experiments/stasm/third/example/example_number.ts

@@ -0,0 +1,81 @@
+import {Message} from "../impl/model.js";
+import {formatMessage, NumberValue} from "../impl/runtime.js";
+
+console.log("==== English ====");
+
+{
+	// "Transferred {NUMBER $payloadSize STYLE unit UNIT megabyte}."
+	let message: Message = {
+		lang: "en",
+		id: "transferred",
+		phrases: {},
+		selectors: [
+			{
+				expr: null,
+				default: {type: "StringLiteral", value: "default"},
+			},
+		],
+		variants: [
+			{
+				keys: [{type: "StringLiteral", value: "default"}],
+				value: [
+					{type: "StringLiteral", value: "Transferred "},
+					{
+						type: "FunctionCall",
+						name: "NUMBER",
+						args: [{type: "VariableReference", name: "payloadSize"}],
+						opts: {
+							STYLE: {type: "StringLiteral", value: "unit"},
+							UNIT: {type: "StringLiteral", value: "megabyte"},
+						},
+					},
+					{type: "StringLiteral", value: "."},
+				],
+			},
+		],
+	};
+	console.log(
+		formatMessage(message, {
+			payloadSize: new NumberValue(1.23),
+		})
+	);
+}
+
+console.log("==== French ====");
+
+{
+	// "{NUMBER $payloadSize STYLE unit UNIT megabyte} transféré."
+	let message: Message = {
+		lang: "fr",
+		id: "transferred",
+		phrases: {},
+		selectors: [
+			{
+				expr: null,
+				default: {type: "StringLiteral", value: "default"},
+			},
+		],
+		variants: [
+			{
+				keys: [{type: "StringLiteral", value: "default"}],
+				value: [
+					{
+						type: "FunctionCall",
+						name: "NUMBER",
+						args: [{type: "VariableReference", name: "payloadSize"}],
+						opts: {
+							STYLE: {type: "StringLiteral", value: "unit"},
+							UNIT: {type: "StringLiteral", value: "megabyte"},
+						},
+					},
+					{type: "StringLiteral", value: " transféré."},
+				],
+			},
+		],
+	};
+	console.log(
+		formatMessage(message, {
+			payloadSize: new NumberValue(1.23),
+		})
+	);
+}

experiments/stasm/third/impl/registry.ts

@@ -9,11 +9,12 @@ export type RegistryFunc<T> = (
 
 // The built-in functions.
 export const REGISTRY: Record<string, RegistryFunc<unknown>> = {
-	PLURAL: get_plural,
+	PLURAL: select_plural,
 	PHRASE: get_phrase,
+	NUMBER: format_number,
 };
 
-function get_plural(
+function select_plural(
 	ctx: FormattingContext,
 	args: Array<Argument>,
 	opts: Record<string, Parameter>
@@ -40,3 +41,31 @@ function get_phrase(
 	let variant = ctx.selectVariant(phrase.variants, phrase.selectors);
 	return new StringValue(ctx.formatPattern(variant.value));
 }
+
+function format_number(
+	ctx: FormattingContext,
+	args: Array<Argument>,
+	opts: Record<string, Parameter>
+): NumberValue {
+	let number = ctx.toRuntimeValue(args[0]);
+	if (!(number instanceof NumberValue)) {
+		throw new TypeError();
+	}
+
+	// TODO(stasm): Add more options.
+	let opt_values: Record<string, boolean | number | string> = {};
+	if ("STYLE" in opts) {
+		let value = ctx.toRuntimeValue(opts["STYLE"]);
+		if (value instanceof StringValue) {
+			opt_values["style"] = value.value;
+		}
+	}
+	if ("UNIT" in opts) {
+		let value = ctx.toRuntimeValue(opts["UNIT"]);
+		if (value instanceof StringValue) {
+			opt_values["unit"] = value.value;
+		}
+	}
+
+	return new NumberValue(number.value, opt_values);
+}

experiments/stasm/third/impl/runtime.ts

@@ -32,18 +32,30 @@ export class StringValue extends RuntimeValue<string> {
 }
 
 export class NumberValue extends RuntimeValue<number> {
+	private opts: Intl.NumberFormatOptions;
+
+	constructor(value: number, opts: Intl.NumberFormatOptions = {}) {
+		super(value);
+		this.opts = opts;
+	}
+
 	format(ctx: FormattingContext): string {
 		// TODO(stasm): Cache NumberFormat.
-		// TODO(stasm): Pass options.
-		return new Intl.NumberFormat(ctx.locale).format(this.value);
+		return new Intl.NumberFormat(ctx.locale, this.opts).format(this.value);
 	}
 }
 
 export class PluralValue extends RuntimeValue<number> {
+	private opts: Intl.PluralRulesOptions;
+
+	constructor(value: number, opts: Intl.PluralRulesOptions = {}) {
+		super(value);
+		this.opts = opts;
+	}
+
 	format(ctx: FormattingContext): string {
 		// TODO(stasm): Cache PluralRules.
-		// TODO(stasm): Pass options.
-		let pr = new Intl.PluralRules(ctx.locale);
+		let pr = new Intl.PluralRules(ctx.locale, this.opts);
 		return pr.select(this.value);
 	}
 }

experiments/stasm/third/package.json

@@ -12,7 +12,7 @@
   },
   "scripts": {
     "example": "tsc && node example/index.js",
-    "start": "tsc && (node example/index.js glossary; node example/index.js list; node example/index.js phrases)",
+    "start": "tsc && (node example/index.js glossary; node example/index.js list; node example/index.js phrases; node example/index.js number)",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "Staś Małolepszy <[email protected]>",