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This option allows you to search for a text string or for a regular expression in the current file or in all opened files.
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The different options indicate:
Scope: Can be the current window or all opened windows.
Type of Match: The character string can be used literally or as a regular expression.
Symbols only: The text is a symbol and only matches that are delimited by non-symbol characters will be reported.[1]
Match case: Whether case is important when searching.
Direction: You can search forward (towards the end of the file) or backward (towards the beginning of the file) or make the search wrap at the end of the file and start at the beginning.
This mode is
started by the accelerator Ctrl+F. You just type the word to be searched, and
the editor searches the longest match. To find the next match without typing a
new letter, you type Ctrl+F again. To get out of the incremental search feature
type the Escape key or carriage return.
[1]What
a symbol is depends on the programming language. To avoid overloading the
language definition with heavy syntax, only letters, digits, and the
underscore are used as symbols. This will fit most languages except Common
Lisp, where you can define symbols containing almost any combination of
characters.
