Execute Scilab code in strings (original) (raw)

Scilab 5.3.3

Please note that the recommended version of Scilab is 2026.0.1. This page might be outdated.
See the recommended documentation of this function

Scilab help >> Functions > execstr

execstr

execute Scilab code in strings

Calling Sequence

execstr(instr) ierr=execstr(instr,'errcatch' [,msg])

Arguments

instr

vector of character strings, Scilab instruction to be executed.

ierr

integer, 0 or error number.

msg

character string with values 'm' or 'n'. Default value is 'n'.

Description

Executes the Scilab instructions given in argumentinstr.

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 withierr 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 evalution of instruction obtained by a query to the user.

Examples

execstr('a=1') execstr('1+1')

execstr(['if %t then'; ' a=1'; ' b=a+1'; 'else' ' b=0' 'end'])

execstr('a=zzzzzzz','errcatch') execstr('a=zzzzzzz','errcatch','m')

execstr('a=1?02','errcatch') lasterror(%t)

execstr('a=[1 2 3)','errcatch') lasterror(%t)

if execstr('variable1;','errcatch')<>0 then disp("Trigger an error"),end