angular-docs-cn/aio/tools/translator/translate.ts

64 lines
2.2 KiB
TypeScript

import * as fs from 'fs';
import * as _ from 'lodash';
import { DictEntry } from './dict-entry';
import { dirs } from './dirs';
import { listMarkdownFiles } from './extractor';
import { exactlyTest, extractOriginalContent, indentOf, hasInlineText, kernelText, normalizeLines, repeat } from './utils';
// TODO: 改用 markdown 解析器实现
export const dict = require('./dict-latest.json') as DictEntry[];
export function lookup(english: string): DictEntry[] {
const englishKernel = kernelText(extractOriginalContent(english));
const entries = dict
.filter(entry => exactlyTest(entry.key, englishKernel));
return _.uniqBy(entries, 'translation');
}
function isPureTag(line: string): boolean {
let content = line.trim();
return /^<\/?\w+\b[^>]*>$/.test(content) ||
/^<(\w+)\b[^>]*>\s*<\/\1>$/.test(content);
}
export function translate(content: string): string[] {
const lines = normalizeLines(content)
.split(/\n{2,}/);
return lines
.map(line => {
if (!line.trim() || isPureTag(line)) {
return line;
}
const translations = lookup(line);
if (translations.length > 0 && hasInlineText(translations[0].translation)) {
return translations[0].translation;
} else {
const indent = indentOf(line);
const padding = repeat(indent);
if (translations.length === 0) {
return line;
} else if (translations.length === 1) {
return line + '\n\n' + padding + translations[0].translation;
} else {
return line + '\n\n' + padding + translations[translations.length - 1].translation;
}
}
});
}
export function translateFile(sourceFile: string, targetFile: string): void {
const content = fs.readFileSync(sourceFile, 'utf-8');
const result = translate(content);
fs.writeFileSync(targetFile, result.join('\n\n') + '\n', 'utf-8');
}
export function translateDirectory(sourceDir: string, targetDir: string): void {
const files = listMarkdownFiles(sourceDir);
files.forEach(fileName => {
console.log('translating ...', fileName);
translateFile(fileName, fileName.replace(/^.*content-en\//, dirs.content));
console.log('translated ', fileName);
});
}