Merge pull request #55 from teknologi-umum/language/json

feat: json language support

src/index.ts

@@ -11,6 +11,7 @@ import { HTML } from './languages/html';
 import { Java } from './languages/java';
 import { Javascript } from './languages/javascript';
 import { Julia } from './languages/julia';
+import { JSON } from './languages/json';
 import { Kotlin } from './languages/kotlin';
 import { Lua } from './languages/lua';
 import { Markdown } from './languages/markdown';
@@ -37,6 +38,7 @@ const languages: Record<string, LanguagePattern[]> = {
   Java,
   Javascript,
   Julia,
+  JSON,
   Kotlin,
   Lua,
   Markdown,

src/languages/json.ts

@@ -0,0 +1,16 @@
+import type { LanguagePattern } from '../types';
+
+export const JSON: LanguagePattern[] = [
+  // object declaration on top
+  { pattern: /^\{$/, type: 'meta.module', nearTop: true },
+  // normal data type
+  { pattern: /^\s*".+":\s*(".+"|[0-9]+|null|true|false)(,)?$/, type: 'keyword' },
+  // object and array
+  { pattern: /^\s*".+":\s*(\{|\[)$/, type: 'keyword' },
+  // inline key/value pair in object
+  // e.g { "id": 1, "body": "some comment", "postId": 1 }
+  { pattern: /^\s*".+":\s*\{(\s*".+":\s*(".+"|[0-9]+|null|true|false)(,)?\s*){1,}\}(,)?$/, type: 'keyword' },
+  // inline value in array
+  // e.g "middlewares": ["./fixtures/middlewares/en", "./fixtures/middlewares/jp"]
+  { pattern: /\s*".+"\s*\[\s*((".+"|[0-9]+|null|true|false)(,)?\s*){1,}\](,)?$/, type: 'keyword' },
+];

tests/cpp.test.ts

@@ -21,6 +21,7 @@ test('hello world', () => {
     Java: 0,
     Javascript: 0,
     Julia: 2,
+    JSON: 0,
     Kotlin: 0,
     Lua: 2,
     Markdown: 0,

tests/cs.test.ts

@@ -22,6 +22,7 @@ test('hello world', () => {
     Java: -40,
     Javascript: -40,
     Julia: 5,
+    JSON: 0,
     Kotlin: 0,
     Lua: -20,
     Markdown: 0,

tests/json.test.ts

@@ -0,0 +1,123 @@
+import { test } from 'uvu';
+import * as assert from 'uvu/assert';
+import detectLang from '../src/index';
+
+test('1', () => {
+  const code = detectLang(`{
+  "key": "value",
+
+  "keys": "must always be enclosed in double quotes",
+  "numbers": 0,
+  "strings": "Hellø, wørld. All unicode is allowed, along with \\"escaping\\".",
+  "has bools?": true,
+  "nothingness": null,
+
+  "big number": 1.2e+100,
+
+  "objects": {
+    "comment": "Most of your structure will come from objects.",
+
+    "array": [0, 1, 2, 3, "Arrays can have anything in them.", 5],
+
+    "another object": {
+      "comment": "These things can be nested, very useful."
+    }
+  },
+
+  "silliness": [
+    {
+      "sources of potassium": ["bananas"]
+    },
+    [
+      [1, 0, 0, 0],
+      [0, 1, 0, 0],
+      [0, 0, 1, "neo"],
+      [0, 0, 0, 1]
+    ]
+  ],
+
+  "alternative style": {
+    "comment": "check this out!"
+  , "comma position": "doesn't matter, if it's before the next key, it's valid"
+  , "another comment": "how nice"
+  },
+
+
+
+  "whitespace": "Does not matter.",
+
+
+
+  "that was short": "And done. You now know everything JSON has to offer."
+}`);
+  assert.equal(code.language, 'JSON');
+});
+
+test('2', () => {
+  const code = detectLang(`{
+    "name": "John Doe",
+    "age": 43,
+    "address": {
+        "street": "10 Downing Street",
+        "city": "London"
+    },
+    "phones": [
+        "+44 1234567",
+        "+44 2345678"
+    ]
+}`);
+  assert.equal(code.language, 'JSON');
+});
+
+test('3', () => {
+  const code = detectLang(`{
+  "keywords": [
+    "JSON",
+    "server",
+    "fake",
+    "REST",
+    "API",
+    "prototyping",
+    "mock",
+    "mocking",
+    "test",
+    "testing",
+    "rest",
+    "data",
+    "dummy",
+    "sandbox"
+  ]
+}`);
+  assert.equal(code.language, 'JSON');
+});
+
+test('4', () => {
+  const code = detectLang(`{
+    "/api/": "/",
+    "/blog/:resource/:id/show": "/:resource/:id",
+    "/blog/:category": "/posts?category=:category"
+  }`);
+  assert.equal(code.language, 'JSON');
+});
+
+test('5', () => {
+  const code = detectLang(`{
+    "posts": [
+      { "id": 1, "title": "json-server", "author": "typicode" }
+    ],
+    "comments": [
+      { "id": 1, "body": "some comment", "postId": 1 }
+    ],
+    "profile": { "name": "typicode" }
+  }`);
+  assert.equal(code.language, 'JSON');
+});
+
+test('6', () => {
+  const code = detectLang(`{
+    "middlewares": ["./fixtures/middlewares/en", "./fixtures/middlewares/jp"]
+  }`);
+  assert.equal(code.language, 'JSON');
+});
+
+test.run();

tests/large.test.ts

@@ -670,6 +670,7 @@ test('large input', () => {
     Java: -832,
     Javascript: -452,
     Julia: 24,
+    JSON: 0,
     Kotlin: 0,
     Lua: -1820,
     Markdown: 0,