@singleton-i18n/angular-client/esm2015/src/formatters/message.formatter.js

Singleton client code for Angular 10.

/*
 * Copyright 2019-2021 VMware, Inc.
 * SPDX-License-Identifier: EPL-2.0
 */
import { Injectable } from '@angular/core';
import { I18nService } from '../services/i18n.service';
import { VIPServiceConstants } from '../constants';
import { parse } from './plural/plural.message.parser';
export class MessageFormat {
    constructor(i18nService) {
        this.i18nService = i18nService;
    }
    format(locale, message, args) {
        this.locale = locale;
        let isPseudo;
        const pseudoTag = VIPServiceConstants.PseudoTag, reg = new RegExp(`^(${pseudoTag})(.*?)(${pseudoTag})$`, 'g');
        const regResult = reg.exec(message);
        if (regResult) {
            message = regResult[2];
            isPseudo = true;
        }
        const messageAST = parse(message);
        let result = this.interpret(messageAST, args);
        result = isPseudo ? pseudoTag + result + pseudoTag : result;
        return result;
    }
    interpret(ast /*: AST */, args) {
        return this.interpretAST(ast, null, args);
    }
    interpretAST(elements, parent, args) {
        const parts = elements.map((element) => {
            const res = this.interpretElement(element, parent, args);
            return res;
        });
        let message = '';
        for (let e = 0; e < parts.length; ++e) {
            message += parts[e];
        }
        return message;
    }
    interpretElement(element, parent, args) {
        if (typeof element === 'string') {
            return element;
        }
        let id = element[0];
        const type = element[1];
        let res;
        if (parent && element[0] === '#') {
            id = parent[0];
            const functionNameForNumber = this.getFunctionName('number');
            const value = this.getArg(id, args);
            res = this[functionNameForNumber](value);
            return res;
        }
        const children = {};
        if (type === 'plural') {
            Object.keys(element[2]).forEach((key) => {
                children[key] = this.interpretAST(element[2][key], element, args);
            });
            element = [element[0], element[1], children];
        }
        const functionName = type ? this.getFunctionName(type) : undefined;
        if (functionName) {
            const value = this.getArg(id, args);
            switch (type) {
                case 'plural':
                    res = this.interpretPlural(element, value);
                    break;
                case 'number':
                    res = this.interpretNumber(value);
                    break;
            }
        }
        else if (id && !type) {
            res = this.getArg(id, args);
        }
        return String(res);
    }
    interpretPlural(element, value) {
        const children = element[2];
        const type = this.i18nService.getPluralCategory(value, this.locale);
        const clause = children['=' + +value] ||
            children[type] ||
            children.other;
        return clause;
    }
    interpretNumber(value) {
        return this.i18nService.formatNumber(value, this.locale);
    }
    getFunctionName(type) {
        const arr = type.split('');
        const first = arr.slice(0, 1)[0].toUpperCase();
        const h = arr.slice(1).join('');
        const str = first + h;
        const name = 'interpret' + str;
        return this[name] ? name : undefined;
    }
    getArg(id, args) {
        if (args && (id in args)) {
            return args[id];
        }
        const parts = id.split('.');
        let a = args;
        for (let i = 0, length = parts.length; a && i < length; ++i) {
            a = a[parts[i]];
        }
        return a || id;
    }
}
MessageFormat.decorators = [
    { type: Injectable }
];
MessageFormat.ctorParameters = () => [
    { type: I18nService }
];
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* Copyright 2019-2021 VMware, Inc.\n * SPDX-License-Identifier: EPL-2.0\n */\nimport { Injectable } from '@angular/core';\nimport { I18nService } from '../services/i18n.service';\nimport { VIPServiceConstants } from '../constants';\n\nimport { parse } from './plural/plural.message.parser';\n\n\n@Injectable()\nexport class MessageFormat {\n    private locale: string;\n    constructor(private i18nService: I18nService) { }\n\n    public format(locale: string, message: string, args: any) {\n        this.locale = locale;\n\n        let isPseudo: boolean;\n        const pseudoTag = VIPServiceConstants.PseudoTag,\n            reg = new RegExp(`^(${pseudoTag})(.*?)(${pseudoTag})$`, 'g');\n        const regResult: string[]|null = reg.exec(message);\n        if (regResult) {\n            message = regResult[2];\n            isPseudo = true;\n        }\n\n        const messageAST = parse(message);\n        let result = this.interpret(messageAST, args);\n        result = isPseudo ? pseudoTag + result + pseudoTag : result;\n        return result;\n    }\n\n    public interpret(\n        ast: any[]/*: AST */,\n        args?: any[]|{}\n    ): string {\n        return this.interpretAST(ast, null, args);\n    }\n\n    private interpretAST(\n        elements: any[],\n        parent: any,\n        args?: any[]|{}\n    ): string {\n        const parts = elements.map((element) => {\n            const res = this.interpretElement(element, parent, args);\n            return res;\n        });\n        let message = '';\n        for (let e = 0; e < parts.length; ++e) {\n            message += parts[e];\n        }\n        return message;\n    }\n\n    private interpretElement(element: any, parent: any[], args?: any[]|{}): string {\n        if (typeof element === 'string') {\n            return element;\n        }\n        let id = element[0];\n        const type = element[1];\n        let res;\n\n        if (parent && element[0] === '#') {\n            id = parent[0];\n            const functionNameForNumber = this.getFunctionName('number');\n            const value = this.getArg(id, args);\n            res = (this as any)[functionNameForNumber](value);\n            return res;\n        }\n\n        const children: { [key: string]: any } = {};\n        if (type === 'plural') {\n            Object.keys(element[2]).forEach((key) => {\n                children[key] = this.interpretAST(element[2][key], element, args);\n            });\n            element = [element[0], element[1], children];\n        }\n\n        const functionName = type ? this.getFunctionName(type) : undefined;\n        if (functionName) {\n            const value = this.getArg(id, args);\n            switch (type) {\n                case 'plural':\n                    res = this.interpretPlural(element, value);\n                    break;\n                case 'number':\n                    res = this.interpretNumber(value);\n                    break;\n            }\n        } else if (id && !type) {\n            res = this.getArg(id, args);\n        }\n        return  String(res);\n    }\n\n    private interpretPlural(element: any[], value: number) {\n        const children = element[2];\n        const type = this.i18nService.getPluralCategory(value, this.locale);\n\n        const clause =\n            children['=' + + value] ||\n            children[type] ||\n            children.other;\n        return clause;\n    }\n\n    private interpretNumber(value: number): string {\n        return this.i18nService.formatNumber(value, this.locale);\n    }\n\n    private getFunctionName(type: string) {\n        const arr = type.split('');\n        const first = arr.slice(0, 1)[0].toUpperCase();\n        const h = arr.slice(1).join('');\n        const str = first + h;\n        const name = 'interpret' + str;\n        return (this as any)[name] ? name : undefined;\n    }\n\n    private getArg(id: string, args?: any) {\n        if (args && (id in args)) { return args[id]; }\n        const parts = id.split('.');\n        let a = args;\n        for (let i = 0, length = parts.length; a && i < length; ++i) {\n            a = a[parts[i]];\n        }\n        return a || id;\n    }\n\n}\n\n"]}