export function StringLiteral(node: Object, parent: Object) {
let raw = this.getPossibleRaw(node);
if (raw != null) {
this.token(raw);
return;
}
let val = JSON.stringify(node.value);
// escape illegal js but valid json unicode characters
val = val.replace(/[\u000A\u000D\u2028\u2029]/g, function (c) {
return "\\u" + ("0000" + c.charCodeAt(0).toString(16)).slice(-4);
});
if (this.format.quotes === "single" && !t.isJSX(parent)) {
// remove double quotes
val = val.slice(1, -1);
// unescape double quotes
val = val.replace(/\\"/g, '"');
// escape single quotes
val = val.replace(/'/g, "\\'");
// add single quotes
val = `'${val}'`;
}
return this.token(val);
}
export function _stringLiteral(val: string, parent: Object): string {
val = JSON.stringify(val);
// escape illegal js but valid json unicode characters
val = val.replace(/[\u000A\u000D\u2028\u2029]/g, function (c) {
return "\\u" + ("0000" + c.charCodeAt(0).toString(16)).slice(-4);
});
const hasJSXParent = t.isJSX(parent);
if (this.format.quotes === "single" && (!hasJSXParent || (hasJSXParent && this.format.jsxQuotes !== "double"))) {
// remove double quotes
val = val.slice(1, -1);
// unescape double quotes
val = val.replace(/\\"/g, '"');
// escape single quotes
val = val.replace(/'/g, "\\'");
// add single quotes
val = `'${val}'`;
}
return val;
}
export function StringLiteral(node: Object, parent: Object) {
const raw = this.getPossibleRaw(node);
if (!this.format.minified && raw != null) {
this.token(raw);
return;
}
// ensure the output is ASCII-safe
const opts = {
quotes: t.isJSX(parent) ? "double" : this.format.quotes,
wrap: true
};
if (this.format.jsonCompatibleStrings) {
opts.json = true;
}
const val = jsesc(node.value, opts);
return this.token(val);
}