// Which characters should we encode as entities? It depends on the serializer. const encodeAll = { html: true, htmlBasic: true, xhtml: true, xml: true }; const encodeHTMLBasic = {
html: false,
htmlBasic: true,
xhtml: false,
xml: false,
}; const encodeXML = { html: false, htmlBasic: false, xhtml: true, xml: true }; const encodeNone = { html: false, htmlBasic: false, xhtml: false, xml: false }; const encodingInfoMap = new Map([ // Basic sanity chars '<', '>', '"', '&' get encoded in all cases.
["<", encodeAll],
[">", encodeAll],
["&", encodeAll], // nbsp is only encoded with the HTML encoder when encoding basic entities.
["\xA0", encodeHTMLBasic],
]);
const encodingMap = new Map([
["<", "<"],
[">", ">"],
["&", "&"], // nbsp is only encoded with the HTML encoder when encoding basic entities.
["\xA0", " "],
]);
function encodingInfoForChar(c) { var info = encodingInfoMap.get(c); if (info) { return info;
} return encodeNone;
}
function encodingForChar(c, type) { var info = encodingInfoForChar(c); if (!info[type]) { return c;
} return encodingMap.get(c);
}
const doc = new DOMParser().parseFromString("", "text/xml"); const root = doc.documentElement; for (let i = 0; i < 255; ++i) {
let el = doc.createElement("span");
el.textContent = String.fromCharCode(i);
root.appendChild(el);
} for (let type of ["xml", "xhtml", "htmlBasic", "html"]) {
let str = encoders[type](doc).encodeToString(); const prefix = ""; const suffix = ""; Assert.ok(str.startsWith(prefix), `${type} serialization starts correctly`); Assert.ok(str.endsWith(suffix), `${type} serialization ends correctly`);
str = str.substring(prefix.length, str.length - suffix.length);
let encodings = str.split(""); for (let i = 0; i < 255; ++i) {
let c = String.fromCharCode(i); Assert.equal(
encodingForChar(c, type),
encodings[i],
`${type} encoding of char ${i} is correct`
);
}
}
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