pull

.github/workflows/main.yml

@@ -0,0 +1,36 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v3
+
+      # Runs a single command using the runners shell
+      - name: Run a one-line script
+        run: echo Hello, world!
+
+      # Runs a set of commands using the runners shell
+      - name: Run a multi-line script
+        run: |
+          make Run
+

.gitignore

@@ -11,7 +11,7 @@
 .mtj.tmp/
 
 # Package Files #
-*.jar
+
 *.war
 *.nar
 *.ear

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "makefile.extensionOutputFolder": "./.vscode"
+}

Makefile

@@ -0,0 +1,13 @@
+CLASSPATH = lib\*;.
+
+TryCommonMark.class: TryCommonMark.java
+	javac -g -cp "$(CLASSPATH)" TryCommonMark.java
+
+MarkdownParse.class: MarkdownParse.java
+	javac MarkdownParse.java
+
+MarkdownParseTest.class: MarkdownParseTest.java MarkdownParse.class
+	javac -cp ".;lib\junit-4.13.2.jar;lib\hamcrest-core-1.3.jar" MarkdownParseTest.java
+
+Run: MarkdownParseTest.class
+	java -cp ".;lib/junit-4.13.2.jar;lib/hamcrest-core-1.3.jar" org.junit.runner.JUnitCore MarkdownParseTest

MarkdownParse.java

@@ -16,6 +16,30 @@ public static ArrayList<String> getLinks(String markdown) {
             int closeBracket = markdown.indexOf("]", openBracket);
             int openParen = markdown.indexOf("(", closeBracket);
             int closeParen = markdown.indexOf(")", openParen);
+            int exclamation = markdown.indexOf("!", currentIndex);
+            int backtick = markdown.indexOf("`", currentIndex);
+            int innerParen = markdown.indexOf("(", openParen+1);
+            if (innerParen > openParen && innerParen < closeParen){
+                closeParen++;
+                currentIndex = closeParen + 1;
+                continue;
+            }
+            if (exclamation >= currentIndex && exclamation == openBracket - 1){
+                currentIndex = closeParen + 1;
+                continue;
+            }
+            if (backtick >= currentIndex && backtick == openBracket - 1){
+                currentIndex = closeParen + 1;
+                continue;
+            }
+            if (openBracket == -1 || closeBracket == -1 ||
+                openParen == -1 || closeParen == -1){
+                    break;
+                }
+            if (markdown.charAt(openParen-1) != markdown.charAt(closeBracket)){
+                currentIndex = closeParen + 1;
+                continue;
+            }    
             toReturn.add(markdown.substring(openParen + 1, closeParen));
             currentIndex = closeParen + 1;
         }
@@ -24,7 +48,7 @@ public static ArrayList<String> getLinks(String markdown) {
     }
 
 
-    public static void main(String[] args) throws IOException {
+    public static void main(String[] args)  throws IOException{
         Path fileName = Path.of(args[0]);
         String content = Files.readString(fileName);
         ArrayList<String> links = getLinks(content);

MarkdownParseTest.java

@@ -0,0 +1,118 @@
+import static org.junit.Assert.*;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+import java.io.IOException;
+import java.nio.file.Path;
+
+import org.junit.*;
+public class MarkdownParseTest {
+    @Test
+    public void addition() {
+        assertEquals(2, 1 + 1);
+    }
+
+    @Test
+    public void testFile() throws IOException{
+        Path fileName = Path.of("test-file.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("https://something.com", "some-thing.html"),MarkdownParse.getLinks(content));
+    }
+
+    @Test
+    public void break1() throws IOException{
+        Path fileName = Path.of("breaking-test1.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of(),MarkdownParse.getLinks(content));
+    }
+
+    @Test
+    public void break3() throws IOException{
+        Path fileName = Path.of("breaking-test2.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("https://something.com", "some-thing.html"),MarkdownParse.getLinks(content));
+    }
+
+    @Test
+    public void break2() throws IOException{
+        Path fileName = Path.of("breaking-test3.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("https://something.com"),MarkdownParse.getLinks(content));
+    }
+
+    @Test
+    public void testLinks() throws IOException{
+        Path fileName = Path.of("test-file.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("https://something.com", "some-thing.html"), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink2() throws IOException{
+        Path fileName = Path.of("test-file2.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("https://something.com", "some-page.html"), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink3() throws IOException{
+        Path fileName = Path.of("test-file3.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of(), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink4() throws IOException{
+        Path fileName = Path.of("test-file4.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of(), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink5() throws IOException{
+        Path fileName = Path.of("test-file5.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of(), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink6() throws IOException{
+        Path fileName = Path.of("test-file6.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of(), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink7() throws IOException{
+        Path fileName = Path.of("test-file7.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of(), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink8() throws IOException{
+        Path fileName = Path.of("test-file8.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("a link on the first line"), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testLink9() throws IOException{
+        Path fileName = Path.of("test-file9.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of(), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testSnippet1() throws IOException{
+        Path fileName = Path.of("snippet1.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("`google.com", "google.com", "ucsd.edu"), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testSnippet2() throws IOException{
+        Path fileName = Path.of("snippet2.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("a.com", "a.com(())", "example.com"), MarkdownParse.getLinks(content));
+    }
+    @Test
+    public void testSnippet3() throws IOException{
+        Path fileName = Path.of("snippet3.md");
+        String content = Files.readString(fileName);
+        assertEquals(List.of("https://www.twitter.com", 
+            "https://sites.google.com/eng.ucsd.edu/cse-15l-spring-2022/schedule", 
+            "https://cse.ucsd.edu/"), MarkdownParse.getLinks(content));
+    }
+}

TryCommonMark.java

@@ -0,0 +1,12 @@
+import org.commonmark.node.*;
+import org.commonmark.parser.Parser;
+import org.commonmark.renderer.html.HtmlRenderer;
+
+class TryCommonMark {
+    public static void main(String[] args) {
+        Parser parser = Parser.builder().build();
+        Node document = parser.parse("This is *Sparta*");
+        HtmlRenderer renderer = HtmlRenderer.builder().build();  // "<p>This is <em>Sparta</em></p>\n"
+        System.out.println(renderer.render(document));
+    }
+}

breaking-test1.md

@@ -0,0 +1 @@
+# Breaking test

breaking-test2.md

@@ -0,0 +1,5 @@
+# Breaking test 2
+
+[link1](https://something.com)
+[link2](some-thing.html)
+![image](https://www.snopes.com/tachyon/2018/07/poop_emoji.jpg)

breaking-test3.md

@@ -0,0 +1,4 @@
+# Breaking test 3
+
+[link1](https://something.com)
+][)(

snippet1.md

@@ -0,0 +1,7 @@
+`[a link`](url.com)
+
+[another link](`google.com)`
+
+[`cod[e`](google.com)
+
+[`code]`](ucsd.edu)

snippet2.md

@@ -0,0 +1,5 @@
+[a [nested link](a.com)](b.com)
+
+[a nested parenthesized url](a.com(()))
+
+[some escaped \[ brackets \]](example.com)

snippet3.md

@@ -0,0 +1,24 @@
+[this title text is really long and takes up more than 
+one line
+
+and has some line breaks](
+    https://www.twitter.com
+)
+
+[this title text is really long and takes up more than 
+one line](
+https://sites.google.com/eng.ucsd.edu/cse-15l-spring-2022/schedule
+)
+
+
+[this link doesn't have a closing parenthesis](github.com
+
+And there's still some more text after that.
+
+[this link doesn't have a closing parenthesis for a while](https://cse.ucsd.edu/
+
+
+
+)
+
+And then there's more text

test-file.md

@@ -1,4 +1,4 @@
 # Title
 
 [link1](https://something.com)
-[link2](some-thing.html)
+[link2](some-thing.html)

test-file2.md

@@ -0,0 +1,6 @@
+# Title
+
+[a link!](https://something.com)
+[another link!](some-page.html)
+
+some paragraph text after the links

test-file3.md

@@ -0,0 +1,5 @@
+# title
+
+[]
+
+more text here

test-file4.md

@@ -0,0 +1,3 @@
+# title
+
+[]link goes here!

test-file5.md

@@ -0,0 +1,7 @@
+# title
+
+[stuff]
+
+paragraph
+
+(page.com)

test-file6.md

@@ -0,0 +1,3 @@
+# title 
+
+![link](page.com)

test-file7.md

@@ -0,0 +1 @@
+)[

test-file8.md

@@ -0,0 +1,2 @@
+[](a link on the first line)
+[

test-file9.md

@@ -0,0 +1 @@
+[](())