Description
Use the RegExpr.LastError property to get the code of the last error that occurred during the regular expression compilation. To get the error description use the ErrorMsg property. To get the position in the regular expression where the error occurred use the CompilerErrorPos property.
Declaration
RegExprObj.LastError
| Read-Only Property | Integer |
| RegExprObj | An expression, variable or parameter that specifies a reference to a RegExpr object | |||
Applies To
The property is applied to the following object:
Property Value
The error code.
This property returns 0 if regular expression compiled successfully.
Example
The following example demonstrates how to use the RegExpr.Compile method to force expression conversion and to get conversion errors that occur during compilation.
DelphiScript
var
MyRegExp: OleVariant;
Mes: string;
Err, Pos: integer;
begin
MyRegExp:=HISUtils.RegExpr;
try
// Specifies a regular expression
MyRegExp.Expression := '[]';
// Forces expression conversion
MyRegExp.Compile;
// Performs operations over text
…
except
// If a compilation error occurs…
// Obtains the code of the occurred error
Err := MyRegExp.LastError;
// Obtains the description of the occurred error
Mes := MyRegExp.ErrorMsg[Err];
// Obtains the position, in the regular expression, where the error occurred
Pos := MyRegExp.CompilerErrorPos;
// Posts information on the error to the test log
Log.Error('Error: ' + aqConvert.IntToStr(Err) + ' ' + Mes + ' (pos ' + aqConvert.IntToStr(Pos) + ')');
end;
end;
See Also
Regular Expressions Syntax
Using Regular Expressions in Scripts
Expression Property
Compile Method
ErrorMsg Property
CompilerErrorPos Property