feat: add param to disable render of rich markup

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+- Adds an optional parameter to DataTable to disable rendering of string data as Rich Markup.
+
 ## [0.9.0] - 2024-07-23
 
 - Adds a PolarsBackend implementation of DataTableBackend. You must have `polars` installed to use the PolarsBackend. You can install it using the `polars` extra for this package.

src/textual_fastdatatable/data_table.py

@@ -552,6 +552,7 @@ def __init__(
         classes: str | None = None,
         disabled: bool = False,
         null_rep: str = "",
+        render_markup: bool = True,
     ) -> None:
         super().__init__(name=name, id=id, classes=classes, disabled=disabled)
         try:
@@ -652,6 +653,8 @@ def __init__(
         """The type of cursor of the `DataTable`."""
         self.null_rep = Text.from_markup(null_rep)
         """The string used to represent missing data (None or null)"""
+        self.render_markup = render_markup
+        """If true, render string data as Rich markup."""
 
     @property
     def hover_row(self) -> int:
@@ -1775,7 +1778,9 @@ def _get_row_renderables(self, row_index: int) -> RowRenderables:
         empty = self.null_rep
 
         formatted_row_cells = [
-            cell_formatter(datum, null_rep=empty, col=col)
+            cell_formatter(
+                datum, null_rep=empty, col=col, render_markup=self.render_markup
+            )
             for datum, col in zip_longest(ordered_row, self.ordered_columns)
         ]
         label = None
@@ -1811,6 +1816,7 @@ def _get_cell_renderable(
             datum,
             null_rep=self.null_rep,
             col=self.ordered_columns[column_index],
+            render_markup=self.render_markup,
         )
 
     def _render_cell(

src/textual_fastdatatable/formatter.py

@@ -15,7 +15,7 @@
 
 
 def cell_formatter(
-    obj: object, null_rep: Text, col: Column | None = None
+    obj: object, null_rep: Text, col: Column | None = None, render_markup: bool = True
 ) -> RenderableType:
     """Convert a cell into a Rich renderable for display.
 
@@ -30,12 +30,14 @@ def cell_formatter(
     """
     if obj is None:
         return Align(null_rep, align="center")
-    elif isinstance(obj, str):
+    elif isinstance(obj, str) and render_markup:
         try:
             rich_text: Text | str = Text.from_markup(obj)
         except MarkupError:
             rich_text = escape(obj)
         return rich_text
+    elif isinstance(obj, str):
+        return escape(obj)
     elif isinstance(obj, bool):
         return Align(
             f"[dim]{'✓' if obj else 'X'}[/] {obj}{' ' if obj else ''}",