You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

50 lines
1.3 KiB
JavaScript

'use strict';
const {ELEMENT_NODE} = require('./constants.js');
const {END, MIME, NEXT, PREV} = require('./symbols.js');
const $String = String;
exports.String = $String;
const getEnd = node => node.nodeType === ELEMENT_NODE ? node[END] : node;
exports.getEnd = getEnd;
const ignoreCase = ({ownerDocument}) => ownerDocument[MIME].ignoreCase;
exports.ignoreCase = ignoreCase;
const knownAdjacent = (prev, next) => {
prev[NEXT] = next;
next[PREV] = prev;
};
exports.knownAdjacent = knownAdjacent;
const knownBoundaries = (prev, current, next) => {
knownAdjacent(prev, current);
knownAdjacent(getEnd(current), next);
};
exports.knownBoundaries = knownBoundaries;
const knownSegment = (prev, start, end, next) => {
knownAdjacent(prev, start);
knownAdjacent(getEnd(end), next);
};
exports.knownSegment = knownSegment;
const knownSiblings = (prev, current, next) => {
knownAdjacent(prev, current);
knownAdjacent(current, next);
};
exports.knownSiblings = knownSiblings;
const localCase = ({localName, ownerDocument}) => {
return ownerDocument[MIME].ignoreCase ? localName.toUpperCase() : localName;
};
exports.localCase = localCase;
const setAdjacent = (prev, next) => {
if (prev)
prev[NEXT] = next;
if (next)
next[PREV] = prev;
};
exports.setAdjacent = setAdjacent;