IOTConnect-Web/node_modules/entities/lib/esm/escape.js
2024-05-09 09:49:52 +08:00

116 lines
3.9 KiB
JavaScript

export const xmlReplacer = /["&'<>$\x80-\uFFFF]/g;
const xmlCodeMap = new Map([
[34, "&quot;"],
[38, "&amp;"],
[39, "&apos;"],
[60, "&lt;"],
[62, "&gt;"],
]);
// For compatibility with node < 4, we wrap `codePointAt`
export const getCodePoint =
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
String.prototype.codePointAt != null
? (str, index) => str.codePointAt(index)
: // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
(c, index) => (c.charCodeAt(index) & 0xfc00) === 0xd800
? (c.charCodeAt(index) - 0xd800) * 0x400 +
c.charCodeAt(index + 1) -
0xdc00 +
0x10000
: c.charCodeAt(index);
/**
* Encodes all non-ASCII characters, as well as characters not valid in XML
* documents using XML entities.
*
* If a character has no equivalent entity, a
* numeric hexadecimal reference (eg. `&#xfc;`) will be used.
*/
export function encodeXML(str) {
let ret = "";
let lastIdx = 0;
let match;
while ((match = xmlReplacer.exec(str)) !== null) {
const i = match.index;
const char = str.charCodeAt(i);
const next = xmlCodeMap.get(char);
if (next !== undefined) {
ret += str.substring(lastIdx, i) + next;
lastIdx = i + 1;
}
else {
ret += `${str.substring(lastIdx, i)}&#x${getCodePoint(str, i).toString(16)};`;
// Increase by 1 if we have a surrogate pair
lastIdx = xmlReplacer.lastIndex += Number((char & 0xfc00) === 0xd800);
}
}
return ret + str.substr(lastIdx);
}
/**
* Encodes all non-ASCII characters, as well as characters not valid in XML
* documents using numeric hexadecimal reference (eg. `&#xfc;`).
*
* Have a look at `escapeUTF8` if you want a more concise output at the expense
* of reduced transportability.
*
* @param data String to escape.
*/
export const escape = encodeXML;
/**
* Creates a function that escapes all characters matched by the given regular
* expression using the given map of characters to escape to their entities.
*
* @param regex Regular expression to match characters to escape.
* @param map Map of characters to escape to their entities.
*
* @returns Function that escapes all characters matched by the given regular
* expression using the given map of characters to escape to their entities.
*/
function getEscaper(regex, map) {
return function escape(data) {
let match;
let lastIdx = 0;
let result = "";
while ((match = regex.exec(data))) {
if (lastIdx !== match.index) {
result += data.substring(lastIdx, match.index);
}
// We know that this character will be in the map.
result += map.get(match[0].charCodeAt(0));
// Every match will be of length 1
lastIdx = match.index + 1;
}
return result + data.substring(lastIdx);
};
}
/**
* Encodes all characters not valid in XML documents using XML entities.
*
* Note that the output will be character-set dependent.
*
* @param data String to escape.
*/
export const escapeUTF8 = getEscaper(/[&<>'"]/g, xmlCodeMap);
/**
* Encodes all characters that have to be escaped in HTML attributes,
* following {@link https://html.spec.whatwg.org/multipage/parsing.html#escapingString}.
*
* @param data String to escape.
*/
export const escapeAttribute = getEscaper(/["&\u00A0]/g, new Map([
[34, "&quot;"],
[38, "&amp;"],
[160, "&nbsp;"],
]));
/**
* Encodes all characters that have to be escaped in HTML text,
* following {@link https://html.spec.whatwg.org/multipage/parsing.html#escapingString}.
*
* @param data String to escape.
*/
export const escapeText = getEscaper(/[&<>\u00A0]/g, new Map([
[38, "&amp;"],
[60, "&lt;"],
[62, "&gt;"],
[160, "&nbsp;"],
]));
//# sourceMappingURL=escape.js.map