json-ptr - npm Package Compare versions

Comparing version 2.1.3-master.51308ff to 2.1.3-master.eaf24e6

dist.browser/json-ptr.js

 /*! For license information please see json-ptr.js.LICENSE.txt */
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dist/pointer.d.ts

@@ -1,2 +0,2 @@
-import { JsonStringPointer, UriFragmentIdentifierPointer, Pointer, PathSegments, JsonStringPointerListItem, UriFragmentIdentifierPointerListItem } from './types';
+import { JsonStringPointer, UriFragmentIdentifierPointer, Pointer, RelativeJsonPointer, PathSegments, JsonStringPointerListItem, UriFragmentIdentifierPointerListItem } from './types';
 export declare type Visitor = (ptr: JsonStringPointer, val: unknown) => void;
@@ -27,2 +27,5 @@ declare const $ptr: unique symbol;
     has(target: unknown): boolean;
+    parent(target: unknown): unknown;
+    relative(ptr: RelativeJsonPointer): JsonPointer;
+    rel(target: unknown, ptr: RelativeJsonPointer): unknown;
     concat(ptr: JsonPointer | Pointer | PathSegments): JsonPointer;
@@ -29,0 +32,0 @@ get pointer(): JsonStringPointer;

dist/pointer.js

@@ -142,2 +142,38 @@ "use strict";
     }
+    parent(target) {
+        const p = this.path;
+        if (p.length == 1)
+            return undefined;
+        const parent = new JsonPointer(p.slice(0, p.length - 1));
+        return parent.get(target);
+    }
+    relative(ptr) {
+        const p = this.path;
+        const decoded = util_1.decodeRelativePointer(ptr);
+        const n = parseInt(decoded[0]);
+        if (n > p.length)
+            throw new Error('Relative location does not exist.');
+        const r = p.slice(0, p.length - n).concat(decoded.slice(1));
+        if (decoded[0][decoded[0].length - 1] == '#') {
+            const name = r[r.length - 1];
+            throw new Error(`We won't compile a pointer that will always return '${name}'. Use JsonPointer.rel(target, ptr) instead.`);
+        }
+        return new JsonPointer(r);
+    }
+    rel(target, ptr) {
+        const p = this.path;
+        const decoded = util_1.decodeRelativePointer(ptr);
+        const n = parseInt(decoded[0]);
+        if (n > p.length) {
+            return undefined;
+        }
+        const r = p.slice(0, p.length - n).concat(decoded.slice(1));
+        const other = new JsonPointer(r);
+        if (decoded[0][decoded[0].length - 1] == '#') {
+            const name = r[r.length - 1];
+            const parent = other.parent(target);
+            return Array.isArray(parent) ? parseInt(name, 10) : name;
+        }
+        return other.get(target);
+    }
     concat(ptr) {
@@ -144,0 +180,0 @@ return new JsonPointer(this.path.concat(ptr instanceof JsonPointer ? ptr.path : util_1.decodePtrInit(ptr)));

dist/types.d.ts

 export declare type PathSegment = string | number;
-export declare type PathSegments = readonly PathSegment[];
+export declare type PathSegments = PathSegment[];
 export declare type JsonStringPointer = string;
 export declare type UriFragmentIdentifierPointer = string;
 export declare type Pointer = JsonStringPointer | UriFragmentIdentifierPointer;
+export declare type RelativeJsonPointer = string;
 export interface JsonStringPointerListItem {
@@ -7,0 +8,0 @@ readonly pointer: JsonStringPointer;

dist/util.d.ts

@@ -1,2 +0,2 @@
-import { JsonStringPointer, UriFragmentIdentifierPointer, Pointer, PathSegment, PathSegments, Decoder } from './types';
+import { JsonStringPointer, UriFragmentIdentifierPointer, Pointer, RelativeJsonPointer, PathSegment, PathSegments, Decoder } from './types';
 export declare function replace(source: string, find: string, repl: string): string;
@@ -11,2 +11,3 @@ export declare function decodeFragmentSegments(segments: PathSegments): PathSegments;
 export declare function encodeUriFragmentIdentifier(path: PathSegments): UriFragmentIdentifierPointer;
+export declare function decodeRelativePointer(ptr: RelativeJsonPointer): PathSegments;
 export declare function toArrayIndexReference(arr: readonly unknown[], idx: PathSegment): number;
@@ -13,0 +14,0 @@ export declare type Dereference = (it: unknown) => unknown;

dist/util.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.decodePtrInit = exports.pickDecoder = exports.looksLikeFragment = exports.unsetValueAtPath = exports.setValueAtPath = exports.compilePointerDereference = exports.toArrayIndexReference = exports.encodeUriFragmentIdentifier = exports.decodeUriFragmentIdentifier = exports.encodePointer = exports.decodePointer = exports.encodePointerSegments = exports.decodePointerSegments = exports.encodeFragmentSegments = exports.decodeFragmentSegments = exports.replace = void 0;
+exports.decodePtrInit = exports.pickDecoder = exports.looksLikeFragment = exports.unsetValueAtPath = exports.setValueAtPath = exports.compilePointerDereference = exports.toArrayIndexReference = exports.decodeRelativePointer = exports.encodeUriFragmentIdentifier = exports.decodeUriFragmentIdentifier = exports.encodePointer = exports.decodePointer = exports.encodePointerSegments = exports.decodePointerSegments = exports.encodeFragmentSegments = exports.decodeFragmentSegments = exports.replace = void 0;
 function replace(source, find, repl) {
@@ -129,2 +129,30 @@ let res = '';
 exports.encodeUriFragmentIdentifier = encodeUriFragmentIdentifier;
+const InvalidRelativePointerError = 'Invalid Relative JSON Pointer syntax. Relative pointer must begin with a non-negative integer, followed by either the number sign (#), or a JSON Pointer.';
+function decodeRelativePointer(ptr) {
+    if (typeof ptr !== 'string') {
+        throw new TypeError('Invalid type: Relative JSON Pointers are represented as strings.');
+    }
+    if (ptr.length === 0) {
+        throw new ReferenceError(InvalidRelativePointerError);
+    }
+    const segments = ptr.split('/');
+    let first = segments[0];
+    if (first[first.length - 1] == '#') {
+        if (segments.length > 1) {
+            throw new ReferenceError(InvalidRelativePointerError);
+        }
+        first = first.substr(0, first.length - 1);
+    }
+    let i = -1;
+    const len = first.length;
+    while (++i < len) {
+        if (first[i] < '0' || first[i] > '9') {
+            throw new ReferenceError(InvalidRelativePointerError);
+        }
+    }
+    const path = decodePointerSegments(segments.slice(1));
+    path.unshift(segments[0]);
+    return path;
+}
+exports.decodeRelativePointer = decodeRelativePointer;
 function toArrayIndexReference(arr, idx) {
@@ -131,0 +159,0 @@ if (typeof idx === 'number')

package.json

 {
   "name": "json-ptr",
-  "version": "2.1.3-master.51308ff",
+  "version": "2.1.3-master.eaf24e6",
   "author": "Phillip Clark <[e-mail]>",
@@ -33,3 +33,3 @@ "description": "A complete implementation of JSON Pointer (RFC 6901) for nodejs and modern browsers.",
     "lint:fix": "eslint . --ext .ts,.tsx --fix",
-    "pretest": "npm run lint",
+    "pretest": "npm run lint:fix",
     "test": "nyc mocha __tests__/**/*.spec.ts",
@@ -36,0 +36,0 @@ "test:watch": "chokidar \"*.js\" \"*.json\" \"src/**/*.ts\" \"__tests__/**/*.ts\" --command \"npm run test\" --initial",

README.md

@@ -32,3 +32,3 @@ # json-ptr
 ```javascript
-import { JsonPointer, create } from 'json-ptr';
+import { JsonPointer } from 'json-ptr';
 ```
@@ -243,2 +243,4 @@
 
+- 2021-05-14 — **2.2.0** _Added Handling for Relative JSON Pointers_
+  - [Example usage](https://github.com/flitbit/json-ptr/blob/487182100a08f4ddc7713e42ec063bbd5ce2c34c/examples/relative.js)
 - 2021-05-12 — **2.1.1** _Bug fix for [#36](https://github.com/flitbit/json-ptr/issues/36)_
@@ -245,0 +247,0 @@ - @CarolynWebster reported an unintentional behavior change starting at v1.3.0. An operation involving a pointer/path that crossed a null value in the object graph resulted in an exception. In versions prior to v1.3.0 it returned `undefined` as intended. The original behavior has been restored.

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Improved metrics

Total package byte prevSize

233486

increased by5.64%

Lines of code

635

increased by12.19%

Number of lines in readme file

294

increased by0.68%

No dependency changes