feat: add inline groups, revamp Markdown export incl. list groups (#156)

* feat: add inline groups, update markdown export

Signed-off-by: Panos Vagenas <[email protected]>

* rename parameter for clarity

Signed-off-by: Panos Vagenas <[email protected]>

* drop redundant `traverse_inline`, use only `visited`

Signed-off-by: Panos Vagenas <[email protected]>

* update API usage after rebase

Signed-off-by: Panos Vagenas <[email protected]>

* minor refactor

Signed-off-by: Panos Vagenas <[email protected]>

* extend nesting logic to list groups

Signed-off-by: Panos Vagenas <[email protected]>

* (MD export) add inline formulas, placeholders for `KeyValueItem`, `FormItem`

Signed-off-by: Panos Vagenas <[email protected]>

* include 3rd-level list item in test

Signed-off-by: Panos Vagenas <[email protected]>

* update test file with more recent conversion result

Signed-off-by: Panos Vagenas <[email protected]>

* update list construction pattern so that sublists are added to actual ListItems

Signed-off-by: Panos Vagenas <[email protected]>

---------

Signed-off-by: Panos Vagenas <[email protected]>
Signed-off-by: Panos Vagenas <[email protected]>

Author: vagenas

docling_core/types/doc/document.py

@@ -75,6 +75,7 @@ class GroupLabel(str, Enum):
     FORM_AREA = "form_area"
     KEY_VALUE_AREA = "key_value_area"
     COMMENT_SECTION = "comment_section"
+    INLINE = "inline"
 
     def __str__(self):
         """Get string value."""

docling_core/types/doc/labels.py

@@ -655,7 +655,8 @@
         "slide",
         "form_area",
         "key_value_area",
-        "comment_section"
+        "comment_section",
+        "inline"
       ],
       "title": "GroupLabel",
       "type": "string"
@@ -1765,7 +1766,7 @@
       "type": "string"
     },
     "version": {
-      "default": "1.1.0",
+      "default": "1.2.0",
       "pattern": "^(?P<major>0|[1-9]\\d*)\\.(?P<minor>0|[1-9]\\d*)\\.(?P<patch>0|[1-9]\\d*)(?:-(?P<prerelease>(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+(?P<buildmetadata>[0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?$",
       "title": "Version",
       "type": "string"