diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/AllowExc.3 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/doc/AllowExc.3 b/doc/AllowExc.3 index 1145fa4..17d6ec0 100644 --- a/doc/AllowExc.3 +++ b/doc/AllowExc.3 @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: AllowExc.3,v 1.2 1998/09/14 18:39:45 stanton Exp $ +'\" RCS: @(#) $Id: AllowExc.3,v 1.3 2002/03/29 21:01:11 dgp Exp $ '\" .so man.macros .TH Tcl_AllowExceptions 3 7.4 Tcl "Tcl Library Procedures" @@ -27,12 +27,16 @@ Interpreter in which script will be evaluated. .PP If a script is evaluated at top-level (i.e. no other scripts are pending evaluation when the script is invoked), and if the script -terminates with a completion code other than TCL_OK, TCL_CONTINUE +terminates with a completion code other than TCL_OK, TCL_ERROR or TCL_RETURN, then Tcl normally converts this into a TCL_ERROR -return with an appropriate message. +return with an appropriate message. The particular script +evaluation procedures of Tcl that act in the manner are +\fBTcl_EvalObjEx\fR, \fBTcl_EvalObjv\fR, \fBTcl_Eval\fR, \fBTcl_EvalEx\fR, +\fBTcl_GlobalEval\fR, \fBTcl_GlobalEvalObj\fR, \fBTcl_VarEval\fR and +\fBTcl_VarEvalVA\fR. .PP However, if \fBTcl_AllowExceptions\fR is invoked immediately before -calling a procedure such as \fBTcl_Eval\fR, then arbitrary completion +calling one of those a procedures, then arbitrary completion codes are permitted from the script, and they are returned without modification. This is useful in cases where the caller can deal with exceptions |