These functions trim unwanted characters from the left, right or both ends of a character string. The default characters trimmed are spaces but more than one contiguous character can be trimmed it once. For example back slashes and spaces my be trimmed together.
The functions that achieve this result are included in the attached file along with installation instructions, reproduced below.
Purpose: Implements new functions _RTRIM(), _LTRIM(), _ALLTRIM(), _TRIM()
To implement functions equivalent to the old dBase functions that removed spaces
from the, respectively, right, left and both left and right of a character string.
The function _TRIM() is equivalent to _RTRIM() and is provided for consistency with
the old dBase standard.
These four functions remove contiguous characters from the left and/or right of a character string
but not those that are within the string. For example _RTRIM("Mary had a little lamb ")
will become "Mary had a little lamb" - the spaces inside the string are not removed.
Syntax: ResultString = <FunctionName>( string1, string2 )
<FunctionName> as above: _RTRIM(), _LTRIM(), _ALLTRIM(), _TRIM()
string1 is the character string to examine.
string2 is a list of the characters to be examined for; if omitted it defaults to the standard space character, chr(32).
ResultString is the string returned by the function with all characters in string2 trimmed from the left and/or right
If string2 = "%%whs%%" all white space characters will be trimmed from string1.
Whitespace includes Chr(9) thru Chr(13) which are HorizontalTab, LineFeed, VerticalTab, FormFeed, and arriageReturn.
Whitespace also includes the standard space character.
ResultString will be shorter than string1 by an amount equal to the number of characters trimmed from string1.
These functions are not case sensitive, e.g. "m" in string2 will trim both "M" and "m" from string1.
On any error condition ResultString will be equal to string1.
Examples: _RTRIM("Mary had a little lamb ") -> "Mary had a little lamb"
_RTRIM("Mary had a little giraffe xyxyxyz", "xyz") -> "Mary had a little giraffe " (note space at end has not been removed).
_RTRIM("Mary had a little giraffe xyxyxyz", " xyz") -> "Mary had a little giraffe" (now the same space has been removed because
a space is now included in string2).
_RTRIM("Mary had a little giraffe xyxbyxyz", "xyz") -> "Mary had a little giraffe xyxb" (only the x, y and z following the "b"
will be removed because the "b" is not in string2.
To use: 1. Copy this script to the "Include" folder under the AutoIt programs folder.
(for example: c:\program files\autoit3\include\myfunctions.au3 )
2. In your Autoit3 script have following statement:
3. "myfunctions" can be renamed to anything you want.
Disclaimer: Thoroughly tested and debugged, but use entirely at your own risk.
Usage automatically acknowledges acceptance of this condition.