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94 lines
2.4 KiB
94 lines
2.4 KiB
3 years ago
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'use strict';
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var traverse = module.exports = function (schema, opts, cb) {
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// Legacy support for v0.3.1 and earlier.
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if (typeof opts == 'function') {
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cb = opts;
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opts = {};
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}
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cb = opts.cb || cb;
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var pre = (typeof cb == 'function') ? cb : cb.pre || function() {};
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var post = cb.post || function() {};
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_traverse(opts, pre, post, schema, '', schema);
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};
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traverse.keywords = {
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additionalItems: true,
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items: true,
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contains: true,
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additionalProperties: true,
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propertyNames: true,
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not: true,
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if: true,
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then: true,
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else: true
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};
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traverse.arrayKeywords = {
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items: true,
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allOf: true,
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anyOf: true,
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oneOf: true
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};
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traverse.propsKeywords = {
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$defs: true,
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definitions: true,
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properties: true,
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patternProperties: true,
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dependencies: true
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};
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traverse.skipKeywords = {
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default: true,
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enum: true,
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const: true,
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required: true,
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maximum: true,
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minimum: true,
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exclusiveMaximum: true,
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exclusiveMinimum: true,
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multipleOf: true,
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maxLength: true,
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minLength: true,
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pattern: true,
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format: true,
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maxItems: true,
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minItems: true,
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uniqueItems: true,
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maxProperties: true,
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minProperties: true
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};
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function _traverse(opts, pre, post, schema, jsonPtr, rootSchema, parentJsonPtr, parentKeyword, parentSchema, keyIndex) {
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if (schema && typeof schema == 'object' && !Array.isArray(schema)) {
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pre(schema, jsonPtr, rootSchema, parentJsonPtr, parentKeyword, parentSchema, keyIndex);
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for (var key in schema) {
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var sch = schema[key];
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if (Array.isArray(sch)) {
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if (key in traverse.arrayKeywords) {
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for (var i=0; i<sch.length; i++)
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_traverse(opts, pre, post, sch[i], jsonPtr + '/' + key + '/' + i, rootSchema, jsonPtr, key, schema, i);
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}
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} else if (key in traverse.propsKeywords) {
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if (sch && typeof sch == 'object') {
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for (var prop in sch)
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_traverse(opts, pre, post, sch[prop], jsonPtr + '/' + key + '/' + escapeJsonPtr(prop), rootSchema, jsonPtr, key, schema, prop);
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}
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} else if (key in traverse.keywords || (opts.allKeys && !(key in traverse.skipKeywords))) {
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_traverse(opts, pre, post, sch, jsonPtr + '/' + key, rootSchema, jsonPtr, key, schema);
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}
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}
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post(schema, jsonPtr, rootSchema, parentJsonPtr, parentKeyword, parentSchema, keyIndex);
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}
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}
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function escapeJsonPtr(str) {
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return str.replace(/~/g, '~0').replace(/\//g, '~1');
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}
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