execstr execute Scilab code in strings Calling Sequence execstr(instr) ierr = execstr(instr,'errcatch' [,msg]) Arguments instr a vector of character strings, Scilab instruction to be executed. ierr an integer, 0 or error number. msg a character string with values 'm' or 'n'. Default value is 'n'. Description Executes the Scilab instructions given in argument instr. Note that instr should not make use of continuation marks (..) If the 'errcatch' flag is not present, error handling works as usual. If the 'errcatch' flag is set, and an error is encountered while executing the instructions defined in instr, execstr issues no error message, but aborts execution of the instr instructions (at the point where the error occurred), and resumes with ierr equal to the error number. In this case the display of the error message is controlled by the msg option: "m" error message is displayed and recorded. "n" no error message is displayed, but the error message is recorded (see lasterror). This is the default. ierr = execstr(instr, 'errcatch') can handle syntactical errors. This is useful for evaluation of instruction obtained by a query to the user. Examples 0 then disp("Trigger an error"); else disp("execstr is happy"); end // variable2 exists ... no error is triggered by execstr variable2=[2,3]; if execstr('variable2;','errcatch')<>0 then disp("Trigger an error"); else disp("execstr is happy"); end ]]> See Also evstr lasterror error try