Module indexing 

Read-side indexing helpers for vectors, lists, matrices, and data frames. Write-side (replacement) is in assignment.rs.

Enums

IndexingError

Structured error type for indexing operations.

Functions

eval_dollar 🔒

eval_index 🔒

eval_index_double 🔒

eval_list_2d_index 🔒

eval_matrix_index 🔒

extract_dim_names 🔒

Extract a dimnames component (row names at index 0, col names at index 1).

extract_drop_arg 🔒

Extract the drop named argument from index args (3rd+ position). Returns true if drop is not specified (R default).

extract_vector_element

Extract a single element from an RVector at idx (0-based).

get_row_names_vec 🔒

Get row.names from a data frame list as character vector.

index_by_integer 🔒

index_by_logical 🔒

index_by_negative 🔒

resolve_df_row_index 🔒

Resolve data frame row indices, handling positive integers, negative integers, logical masks, and character row names. Returns 1-based positive indices.

resolve_dim_index 🔒

Resolve a row or column index against dimension size and optional dimnames. Returns 0-based indices.

subset_row_names 🔒

Subset row.names from a data frame list using 1-based integer indices. If the original has row names, select the corresponding ones. Otherwise generate fresh 1-based row names.