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terminal-cv/node_modules/htmlnano/lib/modules/collapseAttributeWhitespace.js

88 lines
2.5 KiB

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = collapseAttributeWhitespace;
1 year ago
exports.attributesWithLists = void 0;
var _helpers = require("../helpers");
const attributesWithLists = new Set(['class', 'dropzone', 'rel', // a, area, link
'ping', // a, area
'sandbox', // iframe
'sizes', // link
'headers' // td, th
]);
/** @type Record<string, string[] | null> */
exports.attributesWithLists = attributesWithLists;
const attributesWithSingleValue = {
accept: ['input'],
action: ['form'],
accesskey: null,
'accept-charset': ['form'],
cite: ['blockquote', 'del', 'ins', 'q'],
cols: ['textarea'],
colspan: ['td', 'th'],
data: ['object'],
dropzone: null,
formaction: ['button', 'input'],
height: ['canvas', 'embed', 'iframe', 'img', 'input', 'object', 'video'],
high: ['meter'],
href: ['a', 'area', 'base', 'link'],
itemid: null,
low: ['meter'],
manifest: ['html'],
max: ['meter', 'progress'],
maxlength: ['input', 'textarea'],
media: ['source'],
min: ['meter'],
minlength: ['input', 'textarea'],
optimum: ['meter'],
ping: ['a', 'area'],
poster: ['video'],
profile: ['head'],
rows: ['textarea'],
rowspan: ['td', 'th'],
size: ['input', 'select'],
span: ['col', 'colgroup'],
src: ['audio', 'embed', 'iframe', 'img', 'input', 'script', 'source', 'track', 'video'],
start: ['ol'],
step: ['input'],
style: null,
tabindex: null,
usemap: ['img', 'object'],
value: ['li', 'meter', 'progress'],
width: ['canvas', 'embed', 'iframe', 'img', 'input', 'object', 'video']
};
/** Collapse whitespaces inside list-like attributes (e.g. class, rel) */
function collapseAttributeWhitespace(tree) {
tree.walk(node => {
if (!node.attrs) {
return node;
}
Object.entries(node.attrs).forEach(([attrName, attrValue]) => {
const attrNameLower = attrName.toLowerCase();
if (attributesWithLists.has(attrNameLower)) {
const newAttrValue = attrValue.replace(/\s+/g, ' ').trim();
node.attrs[attrName] = newAttrValue;
return node;
}
if ((0, _helpers.isEventHandler)(attrNameLower) || Object.hasOwnProperty.call(attributesWithSingleValue, attrNameLower) && (attributesWithSingleValue[attrNameLower] === null || attributesWithSingleValue[attrNameLower].includes(node.tag))) {
node.attrs[attrName] = minifySingleAttributeValue(attrValue);
return node;
}
});
return node;
});
return tree;
}
function minifySingleAttributeValue(value) {
return typeof value === 'string' ? String(value).trim() : value;
}