summaryrefslogtreecommitdiffstats
path: root/doc/AllowExc.3
diff options
context:
space:
mode:
Diffstat (limited to 'doc/AllowExc.3')
-rw-r--r--doc/AllowExc.312
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