(line  9)
* add_history_time:                      History List Management.
                                                               (line 16)
* append_history:                        Managing the History File.
                                                               (line 28)
* clear_history:                         History List Management.
                                                               (line 37)
* current_history:                       Information About the History List.
                                                               (line 17)
* free_history_entry:                    History List Management.
                                                               (line 25)
* get_history_event:                     History Expansion.    (line 26)
* history_arg_extract:                   History Expansion.    (line 41)
* history_base:                          History Variables.    (line  9)
* history_comment_char:                  History Variables.    (line 37)
* history_expand:                        History Expansion.    (line  8)
* history_expansion_char:                History Variables.    (line 29)
* history_get:                           Information About the History List.
                                                               (line 22)
* history_get_history_state:             Initializing History and State Management.
                                                               (line 14)
* history_get_time:                      Information About the History List.
                                                               (line 29)
* history_inhibit_expansion_function:    History Variables.    (line 77)
* history_is_stifled:                    History List Management.
                                                               (line 50)
* history_length:                        History Variables.    (line 12)
* history_list:                          Information About the History List.
                                                               (line  9)
* history_max_entries:                   History Variables.    (line 15)
* history_no_expand_chars:               History Variables.    (line 52)
* history_quotes_inhibit_expansion:      History Variables.    (line 57)
* history_quoting_state:                 History Variables.    (line 65)
* history_search:                        Searching the History List.
                                                               (line 12)
* history_search_delimiter_chars:        History Variables.    (line 47)
* history_search_pos:                    Searching the History List.
                                                               (line 31)
* history_search_prefix:                 Searching the History List.
                                                               (line 21)
* history_set_history_state:             Initializing History and State Management.
                                                               (line 18)
* history_set_pos:                       Moving Around the History List.
                                                               (line  9)
* history_subst_char:                    History Variables.    (line 33)
* history_tokenize:                      History Expansion.    (line 35)
* history_total_bytes:                   Information About the History List.
                                                               (line 33)
* history_truncate_file:                 Managing the History File.
                                                               (line 33)
* history_word_delimiters:               History Variables.    (line 43)
* history_write_timestamps:              History Variables.    (line 19)
* next_history:                          Moving Around the History List.
                                                               (line 19)
* previous_history:                      Moving Around the History List.
                                                               (line 14)
* read_history:                          Managing the History File.
                                                               (line  9)
* read_history_range:                    Managing the History File.
                                                               (line 14)
* remove_history:                        History List Management.
                                                               (line 20)
* replace_history_entry:                 History List Management.
                                                               (line 30)
* stifle_history:                        History List Management.
                                                               (line 40)
* unstifle_history:                      History List Management.
                                                               (line 44)
* using_history:                         Initializing History and State Management.
                                                               (line 10)
* where_history:                         Information About the History List.
                                                               (line 14)
* write_history:                         Managing the History File.
                                                               (line 22)