[<<Previous Entry]
[^^Up^^]
[Next Entry>>]
[Menu]
[About The Guide]
ATADJUST()
Adjusts the beginning position of a sequence within a string
------------------------------------------------------------------------------
Syntax
ATADJUST(<cSearchFor>,<cString>,<nEndpoint>,
[<nCounter>],[<nIgnore>],[<nCharacter|
<cCharacter>]) --> cString
Arguments
<cSearchFor> Designates the character string for which the function
searches, or the character string that provides the reference point for
adjustment.
<cString> Designates the character string within which the
adjustment occurs.
<nTargetPosition> Designates from which position within the
character string the search expression is adjusted.
<nCounter> Designates which occurrence of the <Searchexpression> is
taken into account. The default value is for the last occurrence.
<nIgnore> Designates the number of characters at the beginning of
the search string that are removed. The default value is none.
<nCharacter|cCharacter> Designates a character, as necessary, to
carry out the adjustment. It can be an individual character or an ASCII
value between 0 and 255. The default value is a space CHR(32).
Returns
ATADJUST() returns the modified character string.
Description
The function first looks for the <cSearchFor> parameter within the
character string. From this point, the rest of the <cString> is moved
(adjusted) by either inserting or removing blanks until the
<nTargetPosition> is reached. In lieu of blanks, <nCharacter>|
<cCharacter> can be used as a fill character.
Additionally you can specify that the nth occurrence of <cSearchFor> be
used and whether or not a specific number of characters at the beginning
of the search string is eliminated.
Note
. Using CSETATMUPA() can influence how the search is performed.
Using SETATLIKE() permits the use of wild cards within the search
sequence.
Examples
. Align comments at column 60. The search is for the first
occurrence of "//". Since there is usually at least one space before
each "//", search for " //":
? ATADJUST(" //", Line, 60, 1)
. Move the extensions for the following list of file names to
position 10 and eliminate the ".":
WINDOW.DBF
PLZ.DBF
BACK.DBF
HELP.DBF
LOG.DBF
CHARREM(".", ATADJUST(".", File, 10))
WINDOW DBF
PLZ DBF
BACK DBF
HELP DBF
LOG DBF
. Use ATADJUST() with CSETATMUPA(). There is always a problem
determining whether "AA" occurs twice or three times in "AAA".
Depending on CSETATMUPA(), the function searches behind the last
character, or starts from the last character of a located sequence:
CSETATMUPA(.F.)
? ATADJUST("AA", "123AAABBB", 7, 2) // Sequence not found
CSETATMUPA(.T.)
? ATADJUST("AA", "123AAABBB", 7, 2) // "123A AABBB"
See Also:
SETATLIKE()
CSETATMUPA()
This page created by ng2html v1.05, the Norton guide to HTML conversion utility.
Written by Dave Pearson