60 lines
1.4 KiB
JavaScript
60 lines
1.4 KiB
JavaScript
'use strict';
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const getDocumentationUrl = require('./utils/get-documentation-url');
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const replaceTemplateElement = require('./utils/replace-template-element');
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const escapeWithLowercase = /(?<=(?:^|[^\\])(?:\\\\)*\\)(?<data>x[\dA-Fa-f]{2}|u[\dA-Fa-f]{4}|u{[\dA-Fa-f]+})/g;
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const escapePatternWithLowercase = /(?<=(?:^|[^\\])(?:\\\\)*\\)(?<data>x[\dA-Fa-f]{2}|u[\dA-Fa-f]{4}|u{[\dA-Fa-f]+}|c[a-z])/g;
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const message = 'Use uppercase characters for the value of the escape sequence.';
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const create = context => {
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const check = ({node, original, regex = escapeWithLowercase, fix}) => {
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const fixed = original.replace(regex, data => data.slice(0, 1) + data.slice(1).toUpperCase());
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if (fixed !== original) {
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context.report({
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node,
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message,
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fix: fixer => fix ? fix(fixer, fixed) : fixer.replaceText(node, fixed)
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});
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}
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};
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return {
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Literal(node) {
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if (typeof node.value !== 'string') {
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return;
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}
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check({
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node,
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original: node.raw
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});
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},
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'Literal[regex]'(node) {
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check({
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node,
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original: node.raw,
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regex: escapePatternWithLowercase
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});
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},
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TemplateElement(node) {
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check({
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node,
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original: node.value.raw,
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fix: (fixer, fixed) => replaceTemplateElement(fixer, node, fixed)
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});
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}
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};
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};
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module.exports = {
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create,
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meta: {
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type: 'suggestion',
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docs: {
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url: getDocumentationUrl(__filename)
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},
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fixable: 'code'
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}
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};
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