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55 lines
1.8 KiB
JavaScript
55 lines
1.8 KiB
JavaScript
'use strict';
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// Implementation has been heavily inspired by `ajv-keywords` implementation from:
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// https://github.com/ajv-validator/ajv-keywords/blob/9656614be0104fe71d229459a5217ccac11958a6/src/definitions/regexp.ts
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// Copyright (c) 2016 Evgeny Poberezkin (https://github.com/ajv-validator/ajv-keywords/blob/master/LICENSE)
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// The reason for that is the issue with `peerDependencies` of `ajv-keywords`, that causes the project to fail when other
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// dependency also relies on different `ajv` version and `npm@6` is used.
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// Related issue: https://github.com/ajv-validator/ajv-keywords/issues/170
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// After the issue is addressed, or if `npm@6` is no longer supported, this module can be removed
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// and we can go back to using `ajv-keywords` directly.
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const { _ } = require('ajv/dist/compile/codegen');
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const regexpMetaSchema = {
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type: 'object',
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properties: {
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pattern: { type: 'string' },
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flags: { type: 'string', nullable: true },
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},
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required: ['pattern'],
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additionalProperties: false,
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};
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const metaRegexp = /^\/(.*)\/([gimuy]*)$/;
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const usePattern = ({ gen, it: { opts } }, pattern, flags = opts.unicodeRegExp ? 'u' : '') => {
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const rx = new RegExp(pattern, flags);
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return gen.scopeValue('pattern', {
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key: rx.toString(),
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ref: rx,
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code: _`new RegExp(${pattern}, ${flags})`,
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});
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};
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module.exports = {
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keyword: 'regexp',
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type: 'string',
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schemaType: ['string', 'object'],
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code(cxt) {
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const { data, schema } = cxt;
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const regx = getRegExp(schema);
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cxt.pass(_`${regx}.test(${data})`);
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function getRegExp(sch) {
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if (typeof sch === 'object') return usePattern(cxt, sch.pattern, sch.flags);
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const rx = metaRegexp.exec(sch);
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if (rx) return usePattern(cxt, rx[1], rx[2]);
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throw new Error('cannot parse string into RegExp');
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}
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},
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metaSchema: {
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anyOf: [{ type: 'string' }, regexpMetaSchema],
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},
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};
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