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/*
This file is part of TALER
(C) 2016 GNUnet e.V.
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Generate .po file from list of source files.
*
* Note that duplicate message IDs are NOT merged, to get the same output as
* you would from xgettext, just run msguniq.
*
* @author Florian Dold
*/
"use strict";
import {readFileSync} from "fs";
import * as ts from "typescript";
function wordwrap(str: string, width: number = 80): string[] {
var regex = '.{1,' + width + '}(\\s|$)|\\S+(\\s|$)';
return str.match(RegExp(regex, 'g'));
}
export function processFile(sourceFile: ts.SourceFile) {
processNode(sourceFile);
let lastTokLine = 0;
let preLastTokLine = 0;
function getTemplate(node: ts.Node): string {
switch (node.kind) {
case ts.SyntaxKind.FirstTemplateToken:
return (<any>node).text;
case ts.SyntaxKind.TemplateExpression:
let te = <ts.TemplateExpression>node;
let textFragments = [te.head.text];
for (let tsp of te.templateSpans) {
textFragments.push(`%${(textFragments.length-1)/2+1}$s`);
textFragments.push(tsp.literal.text.replace(/%/g, "%%"));
}
return textFragments.join('');
default:
return "(pogen.ts: unable to parse)";
}
}
function getComment(node: ts.Node): string {
let lc = ts.getLineAndCharacterOfPosition(sourceFile, node.pos);
let lastComments;
for (let l = preLastTokLine; l < lastTokLine; l++) {
let pos = ts.getPositionOfLineAndCharacter(sourceFile, l, 0);
let comments = ts.getTrailingCommentRanges(sourceFile.text, pos);
if (comments) {
lastComments = comments;
}
}
if (!lastComments) {
return;
}
let candidate = lastComments[lastComments.length-1];
let candidateEndLine = ts.getLineAndCharacterOfPosition(sourceFile, candidate.end).line;
if (candidateEndLine != lc.line - 1) {
return;
}
let text = sourceFile.text.slice(candidate.pos, candidate.end);
switch (candidate.kind) {
case ts.SyntaxKind.SingleLineCommentTrivia:
// Remove comment leader
text = text.replace(/^[/][/]\s*/, "");
break;
case ts.SyntaxKind.MultiLineCommentTrivia:
// Remove comment leader and trailer,
// handling white space just like xgettext.
text = text
.replace(/^[/][*](\s*?\n|\s*)?/, "")
.replace(/(\n[ \t]*?)?[*][/]$/, "");
break;
}
return text;
}
function getPath(node: ts.Node): string[] {
switch (node.kind) {
case ts.SyntaxKind.PropertyAccessExpression:
let pae = <ts.PropertyAccessExpression>node;
return Array.prototype.concat(getPath(pae.expression), [pae.name.text]);
case ts.SyntaxKind.Identifier:
let id = <ts.Identifier>node;
return [id.text];
}
return ["(other)"];
}
function arrayEq<T>(a1: T[], a2: T[]) {
if (a1.length != a2.length) {
return false;
}
for (let i = 0; i < a1.length; i++) {
if (a1[i] != a2[i]) {
return false;
}
}
return true;
}
interface TemplateResult {
comment: string;
path: string[];
template: string;
line: number;
}
function processTaggedTemplateExpression(tte: ts.TaggedTemplateExpression): TemplateResult {
let lc = ts.getLineAndCharacterOfPosition(sourceFile, tte.pos);
if (lc.line != lastTokLine) {
preLastTokLine = lastTokLine;
lastTokLine = lc.line;
}
let path = getPath(tte.tag)
let res: TemplateResult = {
path,
line: lc.line,
comment: getComment(tte),
template: getTemplate(tte.template).replace(/"/g, '\\"'),
};
return res;
}
function formatMsgComment(line: number, comment?: string) {
if (comment) {
for (let cl of comment.split('\n')) {
console.log(`#. ${cl}`);
}
}
console.log(`#: ${sourceFile.fileName}:${line+1}`);
console.log(`#, c-format`);
}
function formatMsgLine(head: string, msg: string) {
// Do escaping, wrap break at newlines
let parts = msg
.match(/(.*\n|.+$)/g)
.map((x) => x.replace(/\n/g, '\\n'))
.map((p) => wordwrap(p))
.reduce((a,b) => a.concat(b));
if (parts.length == 1) {
console.log(`${head} "${parts[0]}"`);
} else {
console.log(`${head} ""`);
for (let p of parts) {
console.log(`"${p}"`);
}
}
}
interface JsxProcessingContext {
}
function getJsxElementPath(node: ts.Node) {
let path;
let process = (childNode) => {
switch (childNode.kind) {
case ts.SyntaxKind.JsxOpeningElement:
{
let e = childNode as ts.JsxOpeningElement;
return path = getPath(e.tagName);
}
default:
break;
}
};
ts.forEachChild(node, process);
return path;
}
function translateJsxExpression(node: ts.Node, h) {
switch (node.kind) {
case ts.SyntaxKind.StringLiteral:
{
let e = node as ts.StringLiteral;
return e.text;
}
default:
return `%${h[0]++}$s`;
}
}
function trim(s) {
return s.replace(/^[ \n\t]*/, "").replace(/[ \n\t]*$/, "");
}
function getJsxContent(node: ts.Node) {
let fragments = [];
let holeNum = [1];
let process = (childNode) => {
switch (childNode.kind) {
case ts.SyntaxKind.JsxText:
{
let e = childNode as ts.JsxText;
let s = e.getFullText();
let t = s.split("\n").map(trim).join(" ");
if (s[0] === " ") {
t = " " + t;
}
if (s[s.length - 1] === " ") {
t = t + " ";
}
fragments.push(t);
}
case ts.SyntaxKind.JsxOpeningElement:
break;
case ts.SyntaxKind.JsxElement:
fragments.push(`%${holeNum[0]++}$s`);
break;
case ts.SyntaxKind.JsxExpression:
{
let e = childNode as ts.JsxExpression;
fragments.push(translateJsxExpression(e.expression, holeNum));
break;
}
case ts.SyntaxKind.JsxClosingElement:
break;
default:
let lc = ts.getLineAndCharacterOfPosition(childNode.getSourceFile(), childNode.getStart());
console.error(`unrecognized syntax in JSX Element ${ts.SyntaxKind[childNode.kind]} (${childNode.getSourceFile().fileName}:${lc.line+1}:${lc.character+1}`);
break;
}
};
ts.forEachChild(node, process);
return fragments.join("").trim().replace(/ +/g, " ");
}
function getJsxSingular(node: ts.Node) {
let res;
let process = (childNode) => {
switch (childNode.kind) {
case ts.SyntaxKind.JsxElement:
{
let path = getJsxElementPath(childNode);
if (arrayEq(path, ["i18n", "TranslateSingular"])) {
res = getJsxContent(childNode);
}
}
default:
break;
}
};
ts.forEachChild(node, process);
return res;
}
function getJsxPlural(node: ts.Node) {
let res;
let process = (childNode) => {
switch (childNode.kind) {
case ts.SyntaxKind.JsxElement:
{
let path = getJsxElementPath(childNode);
if (arrayEq(path, ["i18n", "TranslatePlural"])) {
res = getJsxContent(childNode);
}
}
default:
break;
}
};
ts.forEachChild(node, process);
return res;
}
function processNode(node: ts.Node) {
switch (node.kind) {
case ts.SyntaxKind.JsxElement:
let path = getJsxElementPath(node);
if (arrayEq(path, ["i18n", "Translate"])) {
let content = getJsxContent(node);
let {line} = ts.getLineAndCharacterOfPosition(sourceFile, node.pos);
let comment = getComment(node);
formatMsgComment(line, comment);
formatMsgLine("msgid", content);
console.log(`msgstr ""`);
console.log();
return;
}
if (arrayEq(path, ["i18n", "TranslateSwitch"])) {
let {line} = ts.getLineAndCharacterOfPosition(sourceFile, node.pos);
let comment = getComment(node);
formatMsgComment(line, comment);
let singularForm = getJsxSingular(node);
if (!singularForm) {
console.error("singular form missing");
process.exit(1);
}
let pluralForm = getJsxPlural(node);
if (!pluralForm) {
console.error("plural form missing");
process.exit(1);
}
formatMsgLine("msgid", singularForm);
formatMsgLine("msgid_plural", pluralForm);
console.log(`msgstr[0] ""`);
console.log(`msgstr[1] ""`);
console.log();
return;
}
break;
case ts.SyntaxKind.CallExpression:
{
// might be i18n.plural(i18n[.X]`...`, i18n[.X]`...`)
let ce = <ts.CallExpression>node;
let path = getPath(ce.expression);
if (!arrayEq(path, ["i18n", "plural"])) {
break;
}
if (ce.arguments[0].kind != ts.SyntaxKind.TaggedTemplateExpression) {
break;
}
if (ce.arguments[1].kind != ts.SyntaxKind.TaggedTemplateExpression) {
break;
}
let {line} = ts.getLineAndCharacterOfPosition(sourceFile, ce.pos);
let t1 = processTaggedTemplateExpression(<ts.TaggedTemplateExpression>ce.arguments[0]);
let t2 = processTaggedTemplateExpression(<ts.TaggedTemplateExpression>ce.arguments[1]);
let comment = getComment(ce);
formatMsgComment(line, comment);
formatMsgLine("msgid", t1.template);
formatMsgLine("msgid_plural", t2.template);
console.log(`msgstr[0] ""`);
console.log(`msgstr[1] ""`);
console.log();
// Important: no processing for child i18n expressions here
return;
}
case ts.SyntaxKind.TaggedTemplateExpression:
{
let tte = <ts.TaggedTemplateExpression>node;
let {comment, template, line, path} = processTaggedTemplateExpression(tte);
if (path[0] != "i18n") {
break;
}
formatMsgComment(line, comment);
formatMsgLine("msgid", template);
console.log(`msgstr ""`);
console.log();
break;
}
}
ts.forEachChild(node, processNode);
}
}
const fileNames = process.argv.slice(2);
console.log(
`# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\\n"
"Report-Msgid-Bugs-To: \\n"
"POT-Creation-Date: 2016-11-23 00:00+0100\\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\\n"
"Language-Team: LANGUAGE <LL@li.org>\\n"
"Language: \\n"
"MIME-Version: 1.0\\n"
"Content-Type: text/plain; charset=UTF-8\\n"
"Content-Transfer-Encoding: 8bit\\n"`);
console.log()
fileNames.sort();
fileNames.forEach(fileName => {
let sourceFile = ts.createSourceFile(fileName, readFileSync(fileName).toString(), ts.ScriptTarget.ES2016, /*setParentNodes */ true);
processFile(sourceFile);
});
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