@inlang/paraglide-js/dist/compiler/safe-module-id.js

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/**
 * Turns an unsafe module id like `helloWorld🍌` into a safe one like `helloworld__`.
 *
 * Mainly exists to support https://github.com/opral/inlang-paraglide-js/issues/285
 */
export function toSafeModuleId(id) {
    const result = id.toLowerCase().replace(/[^a-z0-9_]/g, "_");
    const startsWithNumber = result[0]?.match(/[0-9]/);
    if (startsWithNumber) {
        return "_" + result;
    }
    else if (reservedJsKeywords.includes(result)) {
        return "_" + result;
    }
    let numUppercase = 0;
    for (const char of id) {
        if (char.match(/[A-Z]/)) {
            numUppercase++;
        }
    }
    return result + (numUppercase > 0 ? `${numUppercase}` : "");
}
export function isSafeModuleId(id) {
    return toSafeModuleId(id) === id;
}
const reservedJsKeywords = [
    "break",
    "case",
    "catch",
    "class",
    "const",
    "continue",
    "debugger",
    "default",
    "delete",
    "do",
    "else",
    "export",
    "extends",
    "false",
    "finally",
    "for",
    "function",
    "if",
    "import",
    "in",
    "instanceof",
    "new",
    "null",
    "return",
    "super",
    "switch",
    "this",
    "throw",
    "true",
    "try",
    "typeof",
    "var",
    "void",
    "while",
    "with",
    //Strict mode reserved keywords
    "let",
    "static",
    "yield",
    "await",
    //Reserved keywords for future use
    "enum",
    "implements",
    "interface",
    "package",
    "private",
    "protected",
    "public",
    // https://github.com/opral/inlang-paraglide-js/issues/331
    "then",
];
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