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ac7b09d57e
And convert the corresponding function expressions to arrow style
while we’re here.
import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import K from "ast-types/gen/kinds";
import fs from "fs";
import path from "path";
import process from "process";
const checkExpression = (node: n.Node): node is K.ExpressionKind =>
n.Expression.check(node);
for (const file of process.argv.slice(2)) {
console.log("Parsing", file);
const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
parser: path.extname(file) === ".ts" ? tsParser : babelParser,
});
let changed = false;
recast.visit(ast, {
visitCallExpression(path) {
const { callee, arguments: args } = path.node;
if (
n.MemberExpression.check(callee) &&
!callee.computed &&
n.Identifier.check(callee.object) &&
callee.object.name === "_" &&
n.Identifier.check(callee.property) &&
callee.property.name === "map" &&
args.length === 2 &&
checkExpression(args[0]) &&
checkExpression(args[1])
) {
const [arr, fn] = args;
path.replace(
b.callExpression(b.memberExpression(arr, b.identifier("map")), [
n.FunctionExpression.check(fn) ||
n.ArrowFunctionExpression.check(fn)
? b.arrowFunctionExpression(
fn.params,
n.BlockStatement.check(fn.body) &&
fn.body.body.length === 1 &&
n.ReturnStatement.check(fn.body.body[0])
? fn.body.body[0].argument || b.identifier("undefined")
: fn.body
)
: fn,
])
);
changed = true;
}
this.traverse(path);
},
});
if (changed) {
console.log("Writing", file);
fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
}
}
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
exports.t = function (str, context) {
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// HAPPY PATH: most translations are a simple string:
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if (context === undefined) {
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return 'translated: ' + str;
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}
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/*
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context will be an ordinary JS object like this:
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{minutes: minutes.toString()}
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This supports use cases like the following:
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i18n.t("__minutes__ min to edit", {minutes: minutes.toString()})
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We have to munge in the context here.
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*/
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const keyword_regex = /__(- )?(\w)+__/g;
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const keys_in_str = str.match(keyword_regex) || [];
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const substitutions = keys_in_str.map(key => {
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let prefix_length;
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if (key.startsWith("__- ")) {
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prefix_length = 4;
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} else {
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prefix_length = 2;
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}
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return {
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keyword: key.slice(prefix_length, key.length - 2),
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prefix: key.slice(0, prefix_length),
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suffix: key.slice(key.length - 2, key.length),
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};
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});
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for (const item of substitutions) {
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str = str.replace(item.prefix + item.keyword + item.suffix,
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context[item.keyword]);
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}
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return 'translated: ' + str;
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};
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