@SEARCH-OPTION - Set default value for searching with @ON

On the one hand, the @SEARCH-OPTION statement can be used to specify whether the @ON statement is to differentiate between uppercase and lowercase in the search term when searching for strings and, on the other, it can be used to define a global column range to which the search is restricted if the @ON statement contains no explicit column range specification.

Operation	Operands	F mode, L mode
@SEARCH- OPTION	{CASELESS-SEARCH [={ ON | OFF}] | COLUMN-RANGE [=cols]} [,...]

CASELESS-SEARCH=
	The operand specifies whether a distinction is to be made between uppercase and lowercase characters in the search term when searching with @ON.
ON	The search with @ON does not consider whether the characters in the located text match those in the search term in terms of uppercase and lowercase notation, i.e. if 'string' is defined as the search term then the strings 'String', 'STRING' or 'StrIng' are all identified as hits (see also section “Searching with @ON”).
OFF	The uppercase/lowercase notation of a character is taken into consideration during the search. This is the default setting when EDT is started.
COLUMN-RANGE=
	The operand provides a global specification for the column range to which the search is to be restricted if the @ON statement contains no explicit column range specification.
cols	Contiguous column range to which searches using the @ON statement are to be limited. If the range specification contains only a single column specification, this indicates the range from the specified column through to 32768. If the first operand is greater than the second then the statement is rejected with the message EDT3922. If no column range is specified then the setting is reset to the value defined at EDT start time, i.e. 1-32768.

EDT uses the system component XHCS when assigning lowercase characters to uppercase. Which characters are treated as an uppercase/lowercase pair therefore depends on the definition of the associated character set attributes in XHCS.

The option CASELESS-SEARCH=ON is effective independently of the setting made with @PAR LOWER. Consequently, in F mode with @PAR LOWER=OFF hits may be displayed in which the located characters are depicted as smudge characters.