@svta/common-media-library/dist/structuredfield/serialize/serializeString.js

A common library for media playback in JavaScript

import { STRING } from '../utils/STRING.js';
import { STRING_REGEX } from '../utils/STRING_REGEX.js';
import { serializeError } from './serializeError.js';
// 4.1.6.  Serializing a String
//
// Given a String as input_string, return an ASCII string suitable for
// use in a HTTP field value.
//
// 1.  Convert input_string into a sequence of ASCII characters; if
//     conversion fails, fail serialization.
//
// 2.  If input_string contains characters in the range %x00-1f or %x7f
//     (i.e., not in VCHAR or SP), fail serialization.
//
// 3.  Let output be the string DQUOTE.
//
// 4.  For each character char in input_string:
//
//     1.  If char is "\" or DQUOTE:
//
//         1.  Append "\" to output.
//
//     2.  Append char to output.
//
// 5.  Append DQUOTE to output.
//
// 6.  Return output.
export function serializeString(value) {
    if (STRING_REGEX.test(value)) {
        throw serializeError(value, STRING);
    }
    return `"${value.replace(/\\/g, `\\\\`).replace(/"/g, `\\"`)}"`;
}
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