TclAllowExceptions(3) Tcl Library Procedures TclAllowExceptions(3)

NAME
       TclAllowExceptions - allow all exceptions in next script evaluation

SYNOPSIS
       ##iinncclluuddee <>

       TTccllAAlllloowwEExxcceeppttiioonnss(interp)

AARRGGUUMMEENNTTSS
       TclInterp   *interp      (in)      Interpreter in which script will be
                                           evaluated.



DESCRIPTION
       If a script is evaluated at top-level (i.e. no other scripts are  pend-
       ing  evaluation  when  the script is invoked), and if the script termi-
       nates  with  a  completion  code  other  than  TCLOK,   TCLERROR   or
       TCLRETURN,  then  Tcl  normally  converts this into a TCLERROR return
       with an appropriate message.  The particular script  evaluation  proce-
       dures  of  Tcl  that act in the manner are TTccllEEvvaallOObbjjEExx, TTccllEEvvaallOObbjjvv,
       TTccllEEvvaall, TTccllEEvvaallEExx,  TTccllGGlloobbaallEEvvaall,  TTccllGGlloobbaallEEvvaallOObbjj,  TTccllVVaarrEEvvaall
       and TTccllVVaarrEEvvaallVVAA.

       However,  if  TTccllAAlllloowwEExxcceeppttiioonnss is invoked immediately before calling
       one of those a procedures, then arbitrary completion codes are  permit-
       ted  from the script, and they are returned without modification.  This
       is useful in cases where the caller can deal with  exceptions  such  as
       TCLBREAK or TCLCONTINUE in a meaningful way.


KKEEYYWWOORRDDSS
       continue, break, exception, interpreter



Tcl                                   7.4               TclAllowExceptions(3)