Preventing issues when there are heading without text (#14)

* Preventing issues when there are heading without text

* Changing example of github actions to cronjob

.github/workflows/example.yml

@@ -1,11 +1,10 @@
 # This is a live example of using the markdown-index in your Github Actions.
-# Simply copy it to your own repo and make sure you change the working-directory 
+# Simply copy it to your own repo and make sure you change the working-directory
 name: live-example
 on:
-  pull_request:
-  push:
-    branches:
-      - main
+  schedule:
+    # Runs every monday only for example. For real example, change it to push events
+    - cron: '0 0 * * 1'
 jobs:
   markdown-index:
     runs-on: ubuntu-latest
@@ -28,4 +27,4 @@ jobs:
       - uses: stefanzweifel/git-auto-commit-action@v4
         with:
           commit_message: Automated markdown-index Documentation
-          file_pattern: "**/*.md"
+          file_pattern: "**/*.md"

markdown/markdown.go

@@ -178,8 +178,9 @@ func (md *rawMarkdown) getFirstParagraph() abstractParagraph {
 			return s, err
 		} else if string(n.Text(source)) != "Table of Contents" {
 			rawContent := ""
-			// Check prevents single heading document
-			if doc.FirstChild() != doc.LastChild() {
+
+			// Check prevents single heading document and headings with empty text
+			if doc.FirstChild() != doc.LastChild() && n.NextSibling() != nil {
 				rawContent = string(n.NextSibling().Text(source))
 			}
 

markdown/markdown_test.go

@@ -253,7 +253,7 @@ func TestFileWithoutMetadata(t *testing.T) {
 
 	assert.False(t, file.isFileAutoGenerated())
 }
-func TestFileWittMetadata(t *testing.T) {
+func TestFileWithMetadata(t *testing.T) {
 	file := newMarkdownFile(TESTDIR, TESTDIR+"/final-file-with-metadata.mock")
 
 	assert.True(t, file.isFileAutoGenerated())

test/README.md

@@ -19,3 +19,5 @@ This second paragraph must be shown only in this local README.md
 # Another title
 
 This should be completely ignored
+
+# Title without text