If you like regex but find the tediousness of checking array lengths,
substring, etc. to be a turnoff, here’s a convenience method to find within a
string using regex, returning the first grouping match if there is one, or the
entire match.
Use as:
$text:=STR_Find_w_Regex
("<https://this.is.stuff/somewhere?a=1&b=2>asdf";"<(.*)>”)
// gets the url, within the brackets
$sample:="https://this.is.stuff/some/object/id/DqjL4zOo9oVoo7MNoM8rHnkeV";
$text:=STR_Find_w_Regex($sample;"\\/([^\\/]+)$")
// get the last part of the string, after the last “/“
// Method: STR_Find_w_Regex
//
// Finds by regex, returning first grouping or entire capture
//
// ----------------------------------------------------
C_TEXT($0;$found)
C_TEXT($1;$text)
$text:=$1
C_TEXT($2;$regex)
$regex:=$2
// ----------------------------------------------------
ARRAY LONGINT($positionsMatched;0)
ARRAY LONGINT($lengthsMatched;0)
// ----------------------------------------------------
If (Match regex($regex;$text;1;$positionsMatched;$lengthsMatched))
If (Size of array($positionsMatched)>0)
$found:=Substring($text;$positionsMatched{1};$lengthsMatched{1})
Else
$found:=Substring($text;$positionsMatched{0};$lengthsMatched{0})
End if
End if
$0:=$found
—
Jim Crate
**********************************************************************
4D Internet Users Group (4D iNUG)
Archive: http://lists.4d.com/archives.html
Options: https://lists.4d.com/mailman/options/4d_tech
Unsub: mailto:[email protected]
**********************************************************************
