Added json package, and added wip of jsonpath

deno.json

@@ -9,6 +9,7 @@
     "@stdext/crypto": "jsr:@stdext/crypto",
     "@stdext/encoding": "jsr:@stdext/encoding",
     "@stdext/http": "jsr:@stdext/http",
+    "@stdext/json": "jsr:@stdext/json",
     "@stdext/lexer": "jsr:@stdext/lexer",
     "@stdext/types": "jsr:@stdext/types"
   },
@@ -29,6 +30,7 @@
     "./crypto",
     "./encoding",
     "./http",
+    "./json",
     "./lexer",
     "./types"
   ],

json/README.md

@@ -0,0 +1,3 @@
+# @stdext/json
+
+The json package, contains helpers for json parsing, querying and processing

json/deno.json

@@ -0,0 +1,8 @@
+{
+  "version": "0.0.1",
+  "name": "@stdext/json",
+  "exports": {
+    ".": "./mod.ts",
+    "./jsonpath": "./jsonpath.ts"
+  }
+}

json/jsonpath.test.ts

@@ -0,0 +1,277 @@
+import { assertEquals } from "@std/assert";
+import type {} from "./jsonpath.ts";
+import { JSONPath, type JSONPathToken } from "./jsonpath.ts";
+
+Deno.test("JSONPath > lexer has correct matchers", async (t) => {
+  await t.step("simple expression", () => {
+    const expected: JSONPathToken[] = [
+      {
+        index: 0,
+        type: "Root",
+        value: "$",
+      },
+      {
+        index: 1,
+        type: "Accessor",
+        value: ".",
+      },
+      {
+        index: 2,
+        type: "NameSelector",
+        value: "foo",
+      },
+      {
+        index: 5,
+        type: "SelectorStart",
+        value: "[",
+      },
+      {
+        index: 6,
+        type: "QuotedNameSelector",
+        value: "bar",
+      },
+      {
+        index: 11,
+        type: "SelectorEnd",
+        value: "]",
+      },
+      {
+        index: 12,
+        type: "Accessor",
+        value: ".",
+      },
+      {
+        index: 13,
+        type: "NameSelector",
+        value: "baz",
+      },
+      {
+        index: 16,
+        type: "SelectorStart",
+        value: "[",
+      },
+      {
+        index: 17,
+        type: "NumberSelector",
+        value: 1,
+      },
+      {
+        index: 18,
+        type: "SelectorEnd",
+        value: "]",
+      },
+      {
+        index: 19,
+        type: "SelectorStart",
+        value: "[",
+      },
+      {
+        index: 20,
+        type: "NumberSelector",
+        value: 1,
+      },
+      {
+        index: 21,
+        type: "SliceSeparator",
+        value: ",",
+      },
+      {
+        index: 22,
+        type: "NumberSelector",
+        value: 2,
+      },
+      {
+        index: 23,
+        type: "SelectorEnd",
+        value: "]",
+      },
+      {
+        index: 24,
+        type: "SelectorStart",
+        value: "[",
+      },
+      {
+        index: 25,
+        type: "NumberSelector",
+        value: 1,
+      },
+      {
+        index: 26,
+        type: "SliceSelector",
+        value: ":",
+      },
+      {
+        index: 27,
+        type: "NumberSelector",
+        value: 2,
+      },
+      {
+        index: 28,
+        type: "SliceSelector",
+        value: ":",
+      },
+      {
+        index: 29,
+        type: "NumberSelector",
+        value: 3,
+      },
+      {
+        index: 30,
+        type: "SelectorEnd",
+        value: "]",
+      },
+      {
+        index: 31,
+        type: "SelectorStart",
+        value: "[",
+      },
+      {
+        index: 32,
+        type: "Wildcard",
+        value: "*",
+      },
+      {
+        index: 33,
+        type: "SelectorEnd",
+        value: "]",
+      },
+      {
+        index: 34,
+        type: "FilterSelectorStart",
+        value: "[?",
+      },
+      {
+        index: 36,
+        type: "CurrentNode",
+        value: "@",
+      },
+      {
+        index: 37,
+        type: "Accessor",
+        value: ".",
+      },
+      {
+        index: 38,
+        type: "NameSelector",
+        value: "a",
+      },
+      {
+        index: 40,
+        type: "ComparisonEqual",
+        value: "==",
+      },
+      {
+        index: 43,
+        type: "QuotedNameSelector",
+        value: "a",
+      },
+      {
+        index: 46,
+        type: "SelectorEnd",
+        value: "]",
+      },
+      {
+        index: 47,
+        type: "FilterSelectorStart",
+        value: "[?",
+      },
+      {
+        index: 49,
+        type: "GroupStart",
+        value: "(",
+      },
+      {
+        index: 50,
+        type: "CurrentNode",
+        value: "@",
+      },
+      {
+        index: 51,
+        type: "Accessor",
+        value: ".",
+      },
+      {
+        index: 52,
+        type: "NameSelector",
+        value: "a",
+      },
+      {
+        index: 54,
+        type: "ComparisonEqual",
+        value: "==",
+      },
+      {
+        index: 57,
+        type: "QuotedNameSelector",
+        value: "a",
+      },
+      {
+        index: 60,
+        type: "GroupEnd",
+        value: ")",
+      },
+      {
+        index: 61,
+        type: "SelectorEnd",
+        value: "]",
+      },
+      {
+        index: 62,
+        type: "FilterSelectorStart",
+        value: "[?",
+      },
+      {
+        index: 64,
+        type: "NameSelector",
+        value: "search",
+      },
+      {
+        index: 70,
+        type: "GroupStart",
+        value: "(",
+      },
+      {
+        index: 71,
+        type: "CurrentNode",
+        value: "@",
+      },
+      {
+        index: 72,
+        type: "Accessor",
+        value: ".",
+      },
+      {
+        index: 73,
+        type: "NameSelector",
+        value: "a",
+      },
+      {
+        index: 74,
+        type: "SliceSeparator",
+        value: ",",
+      },
+      {
+        index: 76,
+        type: "QuotedNameSelector",
+        value: "[bc]",
+      },
+      {
+        index: 82,
+        type: "GroupEnd",
+        value: ")",
+      },
+      {
+        index: 83,
+        type: "SelectorEnd",
+        value: "]",
+      },
+    ];
+    const l = new JSONPath({});
+    assertEquals(
+      l._getLexer(
+        `$.foo['bar'].baz[1][1,2][1:2:3][*][?@.a == 'a'][?(@.a == 'a')][?search(@.a, "[bc]")]`,
+      ).tokenize(),
+      expected,
+    );
+  });
+});