Add _format_numbers_with_gt() util fn

Author: rich-iannone

pointblank/validate.py

@@ -13802,6 +13802,24 @@ def _transform_eval(
     return symbol_list
 
 
+def _format_numbers_with_gt(
+    values: list[int], n_sigfig: int = 3, compact: bool = True, locale: str = "en"
+) -> list[str]:
+    """Format numbers using Great Tables GT object to avoid pandas dependency."""
+    import polars as pl
+
+    # Create a single-column DataFrame with all values
+    df = pl.DataFrame({"values": values})
+
+    # Create GT object and format the column
+    gt_obj = GT(df).fmt_number(columns="values", n_sigfig=n_sigfig, compact=compact, locale=locale)
+
+    # Extract the formatted values using _get_column_of_values
+    formatted_values = _get_column_of_values(gt_obj, column_name="values", context="html")
+
+    return formatted_values
+
+
 def _transform_test_units(
     test_units: list[int], interrogation_performed: bool, active: list[bool], locale: str
 ) -> list[str]: