Minor refactorings

- Reorder parser methods and use `Pos` everywhere
- Remove tab special handling for columns and adapt heading/list/enum indent handling
- Don't panic when a file has an empty path

4 files changed, 20 insertions, 16 deletions

diff --git a/tests/ref/markup/lists.png b/tests/ref/markup/lists.png
index 815e5105..315905b8 100644
--- a/tests/ref/markup/lists.png
+++ b/tests/ref/markup/lists.png
diff --git a/tests/typ/markup/enums.typ b/tests/typ/markup/enums.typ
index 516fd0c1..ecf08a36 100644
--- a/tests/typ/markup/enums.typ
+++ b/tests/typ/markup/enums.typ
@@ -8,4 +8,4 @@
 ---
 1. First.
    2. Second.
-  1. Back to first.
+1. Back to first.
diff --git a/tests/typ/markup/heading.typ b/tests/typ/markup/heading.typ
index bc0317b3..4647e7a6 100644
--- a/tests/typ/markup/heading.typ
+++ b/tests/typ/markup/heading.typ
@@ -33,7 +33,7 @@ No = heading
     indented.
 
 =  This
-  is not.
+is not.
 
 // Code blocks continue heading.
 = A {
diff --git a/tests/typ/markup/lists.typ b/tests/typ/markup/lists.typ
index 5c464ab8..716fcd73 100644
--- a/tests/typ/markup/lists.typ
+++ b/tests/typ/markup/lists.typ
@@ -7,6 +7,12 @@ _Shopping list_
 - Juice
 
 ---
+Tightly
+- surrounded
+- by two
+paragraphs.
+
+---
 - First level.
   - Second level.
 
@@ -18,28 +24,26 @@ _Shopping list_
 - At the top.
 
 ---
-- Works
-    - Also with four spaces
-		- Or two tabs
+- Level 1
+  - Level [
+2 through template
+]
 
 ---
   - Top-level indent
 - is fine.
 
 ---
-Tightly
-- surrounded
-- by two
-paragraphs.
-
----
  - A
      - B
    - C
-  - D
+- D
 
 ---
-- Level 1
-  - Level [
-2 through template
-]
+// This works because tabs are used consistently.
+	- A with 1 tab
+		- B with 2 tabs
+
+// This doesn't work because of mixed tabs and spaces.
+  - A with 2 spaces
+		- B with 2 tabs