found and fixed the issue with loading frontmatter that has a line th…

…at starts with any number of tabs in it

src/test.ts

@@ -581,6 +581,27 @@ describe('Insert yaml attributes', () => {
     `;
     expect(rulesDict['insert-yaml-attributes'].apply(before, {'Text to insert': 'tags:'})).toBe(after);
   });
+  // accounts for https://github.com/platers/obsidian-linter/issues/157
+  it('When a file has tabs at the start of a line in the frontmatter, the yaml insertion still works leaving other tabs as they were', () => {
+    const before = dedent`
+    ---
+    title: this title\thas a tab
+    tags:
+    \t- test1
+    \t- test2
+    ---
+    `;
+    const after = dedent`
+    ---
+    blob:
+    title: this title\thas a tab
+    tags:
+    \t- test1
+    \t- test2
+    ---
+    `;
+    expect(rulesDict['insert-yaml-attributes'].apply(before, {'Text to insert': 'blob:'})).toBe(after);
+  });
 });
 
 describe('Disabled rules parsing', () => {

src/utils.ts

@@ -198,7 +198,9 @@ export function stripCr(text: string): string {
 }
 
 export function loadYAML(yaml_text: string): any {
-  const parsed_yaml = load(yaml_text) as {};
+  // replacing tabs at the beginning of new lines with 2 spaces fixes loading yaml that has tabs at the start of a line
+  // https://github.com/platers/obsidian-linter/issues/157
+  const parsed_yaml = load(yaml_text.replace(/\n(\t)+/g, '\n  ')) as {};
   if (!parsed_yaml) {
     return {};
   }