Properly parse markdown property with colon and quotes

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Fix support for all FCC supported spoken languages (#20)
 - Remove incomplete support of dark mode, no more white on white text: not readable (#33)
+- Parse properly markdown property with colon and quotes (#6)
 
 ### Added
 

zimui/src/utils/__tests__/fixtures/basicMarkdownChallenge.md

@@ -1,6 +1,6 @@
 ---
 id: 56533eb9ac21ba0edf2244c9
-title: Accessing Object Properties with Variables
+title: 'Accessing: Object Properties with Variables'
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cnQyKur'
 forumTopicId: 16165
@@ -104,4 +104,4 @@ const testObj = {
 };
 console.log("I should show up on the console")
 const playerNumber = 16;
-const player = testObj[playerNumber];
+const player = testObj[playerNumber];

zimui/src/utils/__tests__/parseChallenge.test.ts

@@ -1,7 +1,7 @@
 import { readFile } from 'fs/promises'
 import { join } from 'path'
 import { beforeAll, describe, expect, it } from 'vitest'
-import { Challenge, parseChallenge } from '../parseChallenge'
+import { Challenge, parseChallenge, extractKeyValueFromMarkdown } from '../parseChallenge'
 
 describe('Parsing a basic JS challenge', () => {
   let markdown = ''
@@ -18,6 +18,15 @@ describe('Parsing a basic JS challenge', () => {
     expect(typeof description === 'string').toBe(true)
     expect(description && description.length > 0).toBe(true)
   })
+  it('should pull the header from the markdown', async () => {
+    const headers = challenge.header
+    expect(typeof headers === 'object').toBe(true)
+    expect(headers["title"]).toEqual('Accessing: Object Properties with Variables')
+    expect(headers["challengeType"]).toEqual('1')
+    expect(headers["dashedName"]).toEqual('accessing-object-properties-with-variables')
+    expect(headers["id"]).toEqual('56533eb9ac21ba0edf2244c9')
+    expect(headers["videoUrl"]).toEqual('https://scrimba.com/c/cnQyKur')
+  })
   it('should pull the seed code from the markdown', async () => {
     const seed = challenge.seed
     expect(typeof seed === 'string').toBe(true)
@@ -32,3 +41,18 @@ describe('Parsing a basic JS challenge', () => {
     expect(typeof solutions[0] === 'string').toBe(true)
   })
 })
+
+describe('Extract key/value for markdown header', () => {
+  it('should parse property with quotes', async () => {
+    expect(extractKeyValueFromMarkdown("title: 'A title: with a colon and quotes'")).toEqual(['title', 'A title: with a colon and quotes'])
+  })
+  it('should parse property without quotes', async () => {
+    expect(extractKeyValueFromMarkdown("title: A simple title")).toEqual(['title', 'A simple title'])
+  })
+  it('should not care about extra spaces', async () => {
+    expect(extractKeyValueFromMarkdown("title:   A simple title  ")).toEqual(['title', 'A simple title'])
+  })
+  it('should not care about extra spaces with quotes', async () => {
+    expect(extractKeyValueFromMarkdown("title:  ' A simple title  '   ")).toEqual(['title', ' A simple title  ']) // keep whitespaces inside the quotes
+  })
+})

zimui/src/utils/parseChallenge.ts

@@ -4,6 +4,14 @@ export const parseChallenge = (markdownStr: string): Challenge => {
   return new Challenge(marked.lexer(markdownStr))
 }
 
+export const extractKeyValueFromMarkdown = (rawString: string): string[] => {
+  // return a tuple of key and value for a given markdown header string 
+  // which format is "key: value" or "key: 'quoted value: with colon'"
+  // value is unquotted, and leading/trailing whitespaces (outside of the
+  // quotes if any) are dropped
+  return rawString.split(/:\s*'?(.*?)(?:'\s*|\s*$)/s).slice(0,2)
+}
+
 type HintTokens =
   | marked.Tokens.Space
   | marked.Tokens.Code
@@ -22,7 +30,7 @@ export class Challenge {
       const rawStrings = frontMatter.text.split('\n')
       const data: { [key: string]: string } = {}
       for (const rawString of rawStrings) {
-        const keyVal = rawString.split(': ')
+        const keyVal = extractKeyValueFromMarkdown(rawString)
         data[keyVal[0]] = keyVal[1]
       }
       return data