htmlhint/dist/core/rules/attr-whitespace.js

The Static Code Analysis Tool for your HTML

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = {
    id: 'attr-whitespace',
    description: 'All attributes should be separated by only one space and not have leading/trailing whitespace.',
    init(parser, reporter, options) {
        const exceptions = Array.isArray(options)
            ? options
            : [];
        parser.addListener('tagstart', (event) => {
            const attrs = event.attrs;
            let attr;
            const col = event.col + event.tagName.length + 1;
            attrs.forEach((elem) => {
                attr = elem;
                const attrName = elem.name;
                if (exceptions.indexOf(attrName) !== -1) {
                    return;
                }
                if (elem.value.trim() !== elem.value) {
                    reporter.error(`The attributes of [ ${attrName} ] must not have leading or trailing whitespace.`, event.line, col + attr.index, this, attr.raw);
                }
                if (elem.value.replace(/ +(?= )/g, '') !== elem.value) {
                    reporter.error(`The attributes of [ ${attrName} ] must be separated by only one space.`, event.line, col + attr.index, this, attr.raw);
                }
            });
        });
    },
};
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