commit fa3f5f14abf34220ff21c5db08a9fa33cdc6cae2 Author: Vasiliy Tolstov Date: Mon Apr 25 18:42:42 2022 +0300 initial import Signed-off-by: Vasiliy Tolstov diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..399b8cd --- /dev/null +++ b/.gitignore @@ -0,0 +1,16 @@ +# IDE +.vscode +.idea + +# Logs and other files +npm-debug.log* +.DS_Store + +# Compiled files +#dist + +# Dependency directory +node_modules + +# Source maps for JS builds +*.js.map diff --git a/README.md b/README.md new file mode 100644 index 0000000..6303936 --- /dev/null +++ b/README.md @@ -0,0 +1,37 @@ +# Description +Load po files for use with `ngx-translate` + +## Installation: + + ``` +npm i @ngx-translate/core --save +npm i @unistack-org/ngx-translate-po-http-loader --save + ``` + +## Usage: +```ts +import { HttpClient, HttpClientModule } from '@angular/common/http'; + +import { TranslateModule, TranslateLoader } from '@ngx-translate/core'; +import { TranslatePoHttpLoader } from '@unistack-org/ngx-translate-po-http-loader'; + +export function createTranslateLoader(http: HttpClient) { + return new TranslatePoHttpLoader(http, 'assets/i18n', '.po'); +} + +@NgModule({ + imports: [ + BrowserModule, + HttpClientModule, + TranslateModule.forRoot({ + loader: { + provide: TranslateLoader, + useFactory: createTranslateLoader, + deps: [HttpClient] + } + }) + ], + bootstrap: [AppComponent] +}) +export class AppModule { } +``` diff --git a/dist/index.d.ts b/dist/index.d.ts new file mode 100644 index 0000000..96c056f --- /dev/null +++ b/dist/index.d.ts @@ -0,0 +1,11 @@ +import { HttpClient } from '@angular/common/http'; +import { TranslateLoader } from '@ngx-translate/core'; +import { Observable } from 'rxjs'; +export declare class TranslatePoHttpLoader implements TranslateLoader { + protected _http: HttpClient; + protected _prefix: string; + protected _suffix: string; + constructor(_http: HttpClient, _prefix?: string, _suffix?: string); + getTranslation(lang: string): Observable; + parse(contents: string): any; +} diff --git a/dist/index.js b/dist/index.js new file mode 100644 index 0000000..8966a35 --- /dev/null +++ b/dist/index.js @@ -0,0 +1,34 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.TranslatePoHttpLoader = void 0; +var operators_1 = require("rxjs/operators"); +var po_1 = require("./po"); +var TranslatePoHttpLoader = (function () { + function TranslatePoHttpLoader(_http, _prefix, _suffix) { + if (_prefix === void 0) { _prefix = 'i18n'; } + if (_suffix === void 0) { _suffix = '.po'; } + this._http = _http; + this._prefix = _prefix; + this._suffix = _suffix; + } + TranslatePoHttpLoader.prototype.getTranslation = function (lang) { + var _this = this; + return this._http + .get("".concat(this._prefix, "/").concat(lang).concat(this._suffix), { responseType: 'text' }) + .pipe((0, operators_1.map)(function (contents) { return _this.parse(contents); })); + }; + TranslatePoHttpLoader.prototype.parse = function (contents) { + var translations = {}; + var doc = new po_1.POLoader(); + var po = doc.parse(contents); + po.items.forEach(function (item) { + if (item.msgid.length > 0 && item.msgstr.length > 0) { + translations[item.msgid] = item.msgstr.join('\n'); + } + }); + return translations; + }; + return TranslatePoHttpLoader; +}()); +exports.TranslatePoHttpLoader = TranslatePoHttpLoader; +//# sourceMappingURL=index.js.map \ No newline at end of file diff --git a/dist/po.d.ts b/dist/po.d.ts new file mode 100644 index 0000000..36b215b --- /dev/null +++ b/dist/po.d.ts @@ -0,0 +1,36 @@ +declare interface IHeaders { + 'Project-Id-Version': string; + 'Report-Msgid-Bugs-To': string; + 'POT-Creation-Date': string; + 'PO-Revision-Date': string; + 'Last-Translator': string; + 'Language': string; + 'Language-Team': string; + 'Content-Type': string; + 'Content-Transfer-Encoding': string; + 'Plural-Forms': string; + [name: string]: string; +} +export declare class Item { + msgid: string; + msgctxt?: string; + references: string[]; + msgid_plural?: string; + msgstr: string[]; + comments: string[]; + extractedComments: string[]; + flags: Record; + obsolete: boolean; +} +export declare class PO { + comments: string[]; + extractedComments: string[]; + items: Item[]; + headers: Partial; + headerOrder: any[]; +} +export declare class POLoader { + constructor(); + parse(data: string): PO; +} +export {}; diff --git a/dist/po.js b/dist/po.js new file mode 100644 index 0000000..3ea6e7b --- /dev/null +++ b/dist/po.js @@ -0,0 +1,216 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.POLoader = exports.PO = exports.Item = void 0; +; +var Item = (function () { + function Item() { + this.msgid = ''; + this.msgctxt = ''; + this.references = []; + this.msgid_plural = ''; + this.msgstr = []; + this.comments = []; + this.extractedComments = []; + } + return Item; +}()); +exports.Item = Item; +; +var PO = (function () { + function PO() { + this.comments = []; + this.extractedComments = []; + this.items = []; + this.headerOrder = []; + } + return PO; +}()); +exports.PO = PO; +var POLoader = (function () { + function POLoader() { + } + POLoader.prototype.parse = function (data) { + data = data.replace(/\r\n/g, '\n'); + var po = new PO(); + var sections = data.split(/\n\n/); + var headers; + var theaders = []; + while (sections[0] && (theaders.length === 0 || theaders[theaders.length - 1].indexOf('msgid ""') < 0)) { + if (sections[0].match(/msgid\s+"[^"]/)) { + theaders.push('msgid ""'); + } + else { + theaders.push(sections.shift()); + } + } + headers = theaders.join('\n'); + var lines = sections.join('\n').split(/\n/); + po.headers = { + 'Project-Id-Version': '', + 'Report-Msgid-Bugs-To': '', + 'POT-Creation-Date': '', + 'PO-Revision-Date': '', + 'Last-Translator': '', + 'Language': '', + 'Language-Team': '', + 'Content-Type': '', + 'Content-Transfer-Encoding': '', + 'Plural-Forms': '', + }; + po.headerOrder = []; + headers.split(/\n/).reduce(function (acc, line) { + if (acc.merge) { + line = acc.pop().slice(0, -1) + line.slice(1); + delete acc.merge; + } + if (/^".*"$/.test(line) && !/^".*\\n"$/.test(line)) { + acc.merge = true; + } + acc.push(line); + return acc; + }, []).forEach(function (header) { + if (header.match(/^#\./)) { + po.extractedComments.push(header.replace(/^#\.\s*/, '')); + } + else if (header.match(/^#/)) { + po.comments.push(header.replace(/^#\s*/, '')); + } + else if (header.match(/^"/)) { + header = header.trim().replace(/^"/, '').replace(/\\n"$/, ''); + var p = header.split(/:/); + var name = p.shift().trim(); + var value = p.join(':').trim(); + po.headers[name] = value; + po.headerOrder.push(name); + } + }); + var item = new Item(); + var context = null; + var plural = 0; + var obsoleteCount = 0; + var noCommentLineCount = 0; + function trim(string) { + return string.replace(/^\s+|\s+$/g, ''); + } + function finish() { + if (item.msgid.length > 0) { + if (obsoleteCount >= noCommentLineCount) { + item.obsolete = true; + } + obsoleteCount = 0; + noCommentLineCount = 0; + po.items.push(item); + item = new Item(); + } + } + function extract(string) { + string = trim(string); + string = string.replace(/^[^"]*"|"$/g, ''); + string = string.replace(/\\([abtnvfr'"\\?]|([0-7]{3})|x([0-9a-fA-F]{2}))/g, function (match, esc, oct, hex) { + if (oct) { + return String.fromCharCode(parseInt(oct, 8)); + } + if (hex) { + return String.fromCharCode(parseInt(hex, 16)); + } + switch (esc) { + case 'a': + return '\x07'; + case 'b': + return '\b'; + case 't': + return '\t'; + case 'n': + return '\n'; + case 'v': + return '\v'; + case 'f': + return '\f'; + case 'r': + return '\r'; + default: + return esc; + } + }); + return string; + } + while (lines.length > 0) { + var line = trim(lines.shift()); + var lineObsolete = false; + if (line.match(/^#\~/)) { + line = trim(line.substring(2)); + lineObsolete = true; + } + if (line.match(/^#:/)) { + finish(); + item.references.push(trim(line.replace(/^#:/, ''))); + } + else if (line.match(/^#,/)) { + finish(); + var flags = trim(line.replace(/^#,/, '')).split(','); + for (var i = 0; i < flags.length; i++) { + item.flags[flags[i]] = true; + } + } + else if (line.match(/^#($|\s+)/)) { + finish(); + item.comments.push(trim(line.replace(/^#($|\s+)/, ''))); + } + else if (line.match(/^#\./)) { + finish(); + item.extractedComments.push(trim(line.replace(/^#\./, ''))); + } + else if (line.match(/^msgid_plural/)) { + item.msgid_plural = extract(line); + context = 'msgid_plural'; + noCommentLineCount++; + } + else if (line.match(/^msgid/)) { + finish(); + item.msgid = extract(line); + context = 'msgid'; + noCommentLineCount++; + } + else if (line.match(/^msgstr/)) { + var m = line.match(/^msgstr\[(\d+)\]/); + plural = m && m[1] ? parseInt(m[1]) : 0; + item.msgstr[plural] = extract(line); + context = 'msgstr'; + noCommentLineCount++; + } + else if (line.match(/^msgctxt/)) { + finish(); + item.msgctxt = extract(line); + context = 'msgctxt'; + noCommentLineCount++; + } + else { + if (line.length > 0) { + noCommentLineCount++; + if (context === 'msgstr') { + item.msgstr[plural] += extract(line); + } + else if (context === 'msgid') { + item.msgid += extract(line); + } + else if (context === 'msgid_plural') { + item.msgid_plural += extract(line); + } + else if (context === 'msgctxt') { + item.msgctxt += extract(line); + } + } + } + if (lineObsolete) { + obsoleteCount++; + } + } + finish(); + return po; + }; + ; + return POLoader; +}()); +exports.POLoader = POLoader; +; +//# sourceMappingURL=po.js.map \ No newline at end of file diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..b8c4a7d --- /dev/null +++ b/package-lock.json @@ -0,0 +1,964 @@ +{ + "name": "ngx-translate-po-http-loader", + "version": "1.0.0", + "lockfileVersion": 2, + "requires": true, + "packages": { + "": { + "name": "ngx-translate-po-http-loader", + "version": "1.0.0", + "license": 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"https://github.com/unistack-org/ngx-translate-po-http-loader", + "engines": { + "node": ">=4.1.1" + }, + "config": {}, + "devDependencies": { + "@angular/common": "^13.3.4", + "@ngx-translate/core": "^14.0.0", + "@types/node": "^17.0.25", + "tslint": "^6.1.3", + "typescript": "^4.1.5" + } +} diff --git a/src/index.ts b/src/index.ts new file mode 100644 index 0000000..a4b02e0 --- /dev/null +++ b/src/index.ts @@ -0,0 +1,53 @@ +import { HttpClient } from '@angular/common/http'; +import { TranslateLoader } from '@ngx-translate/core'; +import { Observable } from 'rxjs'; +import { map } from 'rxjs/operators'; +import { POLoader, Item } from './po'; + +export class TranslatePoHttpLoader implements TranslateLoader { + + /** + * Translation domain + */ + //public domain = ''; + + constructor( + protected _http: HttpClient, + protected _prefix: string = 'i18n', + protected _suffix: string = '.po' + ) { + } + + /** + * Gets the translations from file + * @param lang + * @returns {any} + */ + public getTranslation(lang: string): Observable { + return this._http + .get(`${this._prefix}/${lang}${this._suffix}`, { responseType: 'text' }) + .pipe(map((contents: string) => this.parse(contents))); + } + + /** + * Parse po file + * @param contents + * @returns {any} + */ + public parse(contents: string): any { + let translations: { [key: string]: string } = {}; + + let doc = new POLoader(); + let po = doc.parse(contents); + + po.items.forEach((item: Item) => { + if (item.msgid.length > 0 && item.msgstr.length > 0) { + translations[item.msgid] = item.msgstr.join('\n'); + } + }); + + return translations; + } + +} + diff --git a/src/po.ts b/src/po.ts new file mode 100644 index 0000000..94834ae --- /dev/null +++ b/src/po.ts @@ -0,0 +1,266 @@ +declare interface IHeaders { + 'Project-Id-Version': string; + 'Report-Msgid-Bugs-To': string; + 'POT-Creation-Date': string; + 'PO-Revision-Date': string; + 'Last-Translator': string; + 'Language': string; + 'Language-Team': string; + 'Content-Type': string; + 'Content-Transfer-Encoding': string; + 'Plural-Forms': string; + [name: string]: string; +}; + +export class Item { + public msgid: string = ''; + public msgctxt?: string = ''; + public references: string[] = []; + public msgid_plural?: string = ''; + public msgstr: string[] = []; + public comments: string[] = []; + public extractedComments: string[] = []; + public flags: Record; + public obsolete: boolean; + //private nplurals: number = 0; +}; + +export class PO { + public comments: string[] = []; + public extractedComments: string[] = []; + public items: Item[] = []; + public headers: Partial; + headerOrder: any[] = []; +} + +export class POLoader { + constructor() { + } + + public parse(data: string): PO { + //support both unix and windows newline formats. + data = data.replace(/\r\n/g, '\n'); + var po = new PO(); + var sections = data.split(/\n\n/); + var headers: string; + var theaders: string[] = []; + //everything until the first 'msgid ""' is considered header + while (sections[0] && (theaders.length === 0 || theaders[theaders.length - 1].indexOf('msgid ""') < 0)) { + if (sections[0].match(/msgid\s+"[^"]/)) { + //found first real string, adding a dummy header item + theaders.push('msgid ""'); + } else { + theaders.push(sections.shift()); + } + } + headers = theaders.join('\n'); + var lines = sections.join('\n').split(/\n/); + + po.headers = { + 'Project-Id-Version': '', + 'Report-Msgid-Bugs-To': '', + 'POT-Creation-Date': '', + 'PO-Revision-Date': '', + 'Last-Translator': '', + 'Language': '', + 'Language-Team': '', + 'Content-Type': '', + 'Content-Transfer-Encoding': '', + 'Plural-Forms': '', + }; + po.headerOrder = []; + + headers.split(/\n/).reduce(function (acc: any, line:any) { + if (acc.merge) { + //join lines, remove last resp. first " + line = acc.pop().slice(0, -1) + line.slice(1); + delete acc.merge; + } + if (/^".*"$/.test(line) && !/^".*\\n"$/.test(line)) { + acc.merge = true; + } + acc.push(line); + return acc; + }, []).forEach(function (header:string) { + if (header.match(/^#\./)) { + po.extractedComments.push(header.replace(/^#\.\s*/, '')); + } else if (header.match(/^#/)) { + po.comments.push(header.replace(/^#\s*/, '')); + } else if (header.match(/^"/)) { + header = header.trim().replace(/^"/, '').replace(/\\n"$/, ''); + var p = header.split(/:/); + var name = p.shift().trim(); + var value = p.join(':').trim(); + po.headers[name] = value; + po.headerOrder.push(name); + } + }); + + //var parsedPluralForms = PO.parsePluralForms(po.headers['Plural-Forms']); + // var nplurals = parsedPluralForms.nplurals; + // var item = new Item({ nplurals: nplurals }); + var item = new Item(); + var context = null; + var plural = 0; + var obsoleteCount = 0; + var noCommentLineCount = 0; + + function trim(string: string) { + return string.replace(/^\s+|\s+$/g, ''); + } + + function finish() { + if (item.msgid.length > 0) { + if (obsoleteCount >= noCommentLineCount) { + item.obsolete = true; + } + obsoleteCount = 0; + noCommentLineCount = 0; + po.items.push(item); + //item = new Item({ nplurals: nplurals }); + item = new Item(); + } + } + + function extract(string: string) { + string = trim(string); + string = string.replace(/^[^"]*"|"$/g, ''); + string = string.replace(/\\([abtnvfr'"\\?]|([0-7]{3})|x([0-9a-fA-F]{2}))/g, function (match, esc, oct, hex) { + if (oct) { + return String.fromCharCode(parseInt(oct, 8)); + } + if (hex) { + return String.fromCharCode(parseInt(hex, 16)); + } + switch (esc) { + case 'a': + return '\x07'; + case 'b': + return '\b'; + case 't': + return '\t'; + case 'n': + return '\n'; + case 'v': + return '\v'; + case 'f': + return '\f'; + case 'r': + return '\r'; + default: + return esc; + } + }); + return string; + } + + while (lines.length > 0) { + var line = trim(lines.shift()); + var lineObsolete = false; + //var add = false; + + if (line.match(/^#\~/)) { // Obsolete item + //only remove the obsolte comment mark, here + //might be, this is a new item, so + //only remember, this line is marked obsolete, count after line is parsed + line = trim(line.substring(2)); + lineObsolete = true; + } + + if (line.match(/^#:/)) { // Reference + finish(); + item.references.push(trim(line.replace(/^#:/, ''))); + } else if (line.match(/^#,/)) { // Flags + finish(); + var flags = trim(line.replace(/^#,/, '')).split(','); + for (var i = 0; i < flags.length; i++) { + item.flags[flags[i]] = true; + } + } else if (line.match(/^#($|\s+)/)) { // Translator comment + finish(); + item.comments.push(trim(line.replace(/^#($|\s+)/, ''))); + } else if (line.match(/^#\./)) { // Extracted comment + finish(); + item.extractedComments.push(trim(line.replace(/^#\./, ''))); + } else if (line.match(/^msgid_plural/)) { // Plural form + item.msgid_plural = extract(line); + context = 'msgid_plural'; + noCommentLineCount++; + } else if (line.match(/^msgid/)) { // Original + finish(); + item.msgid = extract(line); + context = 'msgid'; + noCommentLineCount++; + } else if (line.match(/^msgstr/)) { // Translation + var m = line.match(/^msgstr\[(\d+)\]/); + plural = m && m[1] ? parseInt(m[1]) : 0; + item.msgstr[plural] = extract(line); + context = 'msgstr'; + noCommentLineCount++; + } else if (line.match(/^msgctxt/)) { // Context + finish(); + item.msgctxt = extract(line); + context = 'msgctxt'; + noCommentLineCount++; + } else { // Probably multiline string or blank + if (line.length > 0) { + noCommentLineCount++; + if (context === 'msgstr') { + item.msgstr[plural] += extract(line); + } else if (context === 'msgid') { + item.msgid += extract(line); + } else if (context === 'msgid_plural') { + item.msgid_plural += extract(line); + } else if (context === 'msgctxt') { + item.msgctxt += extract(line); + } + } + } + + if (lineObsolete) { + // Count obsolete lines for this item + obsoleteCount++; + } + } + finish(); + + return po; + }; +}; +/* +parsePluralForms(pluralFormsString: string) { + var results = (pluralFormsString || '') + .split(';') + .reduce(function (acc, keyValueString) { + var trimmedString = keyValueString.trim(); + var equalsIndex = trimmedString.indexOf('='); + var key = trimmedString.substring(0, equalsIndex).trim(); + var value = trimmedString.substring(equalsIndex + 1).trim(); + acc[key] = value; + return acc; + }, {}); + return { + nplurals: results.nplurals, + plural: results.plural + }; +}; +*/ + +/* +class Item { +public Item(options: any) { + var nplurals = options && options.nplurals; + + this.msgid = ''; + this.msgctxt = null; + this.references = []; + this.msgid_plural = null; + this.msgstr = []; + this.comments = []; // translator comments + this.extractedComments = []; + this.flags = {}; + this.obsolete = false; + var npluralsNumber = Number(nplurals); + this.nplurals = (isNaN(npluralsNumber)) ? 2 : npluralsNumber; +}; +*/ \ No newline at end of file diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..4a8545a --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,25 @@ +{ + "compilerOptions": { + "allowSyntheticDefaultImports": true, + "noUnusedLocals": true, + "noImplicitAny": true, + "removeComments": true, + "module": "commonjs", + "moduleResolution": "node", + "sourceMap": true, + "outDir": "dist/", + "declaration": true, + "target": "es5", + "lib": [ + "dom", + "es2015" + ], + "types": ["node"] + }, + "include": [ + "src/**/*.ts" + ], + "exclude": [ + "node_modules" + ] +} diff --git a/tslint.json b/tslint.json new file mode 100644 index 0000000..050ac56 --- /dev/null +++ b/tslint.json @@ -0,0 +1,53 @@ +{ + "rulesDirectory": [ + "node_modules/tslint-eslint-rules/dist/rules" + ], + "rules": { + "indent": [true, "tabs"], + "semicolon": [true, "always", "ignore-interfaces"], + "quotemark": [true, "single", "avoid-escape"], + "only-arrow-functions": true, + "no-duplicate-variable": true, + "member-access": true, + "member-ordering": [ + true, + { + "order": [ + "public-static-field", + "public-static-method", + "protected-static-field", + "protected-static-method", + "private-static-field", + "private-static-method", + "public-instance-field", + "protected-instance-field", + "private-instance-field", + "constructor", + "public-instance-method", + "protected-instance-method", + "private-instance-method" + ] + } + ], + "curly": true, + "eofline": true, + "no-trailing-whitespace": true, + "trailing-comma": [ + true, + { + "multiline": "never", + "singleline": "never" + } + ], + "whitespace": [ + true, + "check-branch", + "check-decl", + "check-operator", + "check-module", + "check-separator", + "check-type", + "check-typecast" + ] + } +}