The above can be anywhere on a query line, and is interpreted as
``within {the following delimiters}''.
Accepted built-in abbreviations following the slash `/'
are:
ABBREV MEANING
line within a line
sent within a sentence
para within a paragraph
page within a page
all within a whole record
REX EXPRESSION MEANING
$ 1 new line
[^\digit\upper][.?!][\space'"] not a digit or upper case letter, then
a period, question, or exclamation point, then
any space character, single or double quote
\x0a=\space+ a new line + some space
\x0c form feed for printer output
"" both start and end delims are empty
A number following a slash `/' means the number of
characters before and after the first search item found. Therefore
``w/250'' means ``within a proximity of 250 characters''. When
the first occurrence of a valid search item is found, a window of 250
characters in either direction will be used to determine if it is a
valid hit. The implied REX expression is: ``.{250}''
meaning ``250 of any character''.
If what follows the slash `/' is not recognized as a
built-in, it is assumed that what follows is a REX expression.
If one expression only is present, it will be used for both
beginning and ending delimiter. If two expressions are present, the
first is the beginning delimiter, the second the ending delimiter.
The exception is within-N (eg. ``w/250''), which always
specifies both start and end delimiters, overriding any preceding
``w/''.
The use of a small `w' means to exclude the delimiters
from the hit.
The use of a capital `W' means to include the delimiters
in the hit.
Designate small `w' and capital `W' to exclude
beginning delimiter, and include ending delimiter, or vice versa
Note that for within-N queries (eg. ``w/250''), the
``delimiter'' is effectively always included in the hit, regardless
of the case of the w.
If the same expression is to be used, the expression need not be
repeated. Example: ``w/[.?!] W/'' means to use an ending
punctuation character as both beginning and end delimiter, but to
exclude the beginning delimiter from the hit, and include the end
delimiter in the hit.