The SET SEARCH (abbreviated SE SE) command controls several options
 related to string searching.

 Format: SET SEARCH { GENERAL | EXACT | WPS |
                      CASE INSENSITIVE | CI |
                      DIACRITICAL INSENSITIVE | DI }
                    { [UN]BOUNDED }
                    { BEGIN | END }

1  –  GENERAL

 The GENERAL option will cause the case of letters and the presence or
 absence of diacritical marks to be ignored in search strings.  GENERAL
 is the default.

2  –  EXACT

 The EXACT option will require all characters to match exactly, including
 the case of letters and the presence of diacritical marks, in search
 strings.

3  –  WPS

 The WPS option will cause a case-independent string match for lowercase
 letters in the search string, and a case-dependent match for uppercase
 letters in the search string.

4  –  CI

 The CI option will cause the case of letters to be ignored in search
 strings, but not the presence of diacritical marks.  CI is an
 abbreviation for CASE INSENSITIVE.

5  –  DI

 The DI option will cause diacritical marks on letters to be ignored in
 string searches, but not the case of the letters.  DI is an abbreviation
 for DIACRITICAL INSENSITIVE.

6  –  BOUNDED

 The BOUNDED (abbreviated BO) option will cause the search to be bounded
 by a page delimiter.  By default, the search is unbounded, which means
 that the entire buffer will be searched.  This option has effect only in
 change mode.

 The UNBOUNDED (abbreviated U) option causes the search not to be bounded
 by a page delimiter, which means that the entire buffer will be
 searched.  This is the default.  This option has effect only in change
 mode.

7  –  BEGIN

 The BEGIN (abbreviated B) option causes the cursor to be left at the
 beginning of the search string when it is found. This is the default.
 This option has effect only in change mode.

8  –  END

 The END (abbreviated E) option causes the cursor to be left at the end
 of the search string when it is found. By default, the cursor is left at
 the beginning. This option has effect only in change mode.