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- .HS Tcl_RecordAndEval tcl
- .BS
- .SH NAME
- Tcl_RecordAndEval \- save a Tcl command in the history list, then execute it
- .SH SYNOPSIS
- .nf
- \fB#include <tcl.h>\fR
- .sp
- int
- \fBTcl_RecordAndEval\fR(\fIinterp, cmd, flags\fR)
- .SH ARGUMENTS
- .AS Tcl_Interp *interp;
- .AP Tcl_Interp *interp in
- Interpreter in which to record and execute the command.
- .AP char *cmd in
- Command (or sequence of commands) to execute.
- .AP char flags in
- Flags to pass to \fBTcl_Eval\fR (normally 0). If -1, then the
- command is not executed; it's just recorded.
- .BE
-
- .SH DESCRIPTION
- .PP
- \fBTcl_RecordAndEval\fR is invoked to record a command on the history
- list and then execute it. Programs that do not wish to use the history
- mechanism should not call \fBTcl_RecordAndEval\fR; they should call
- \fBTcl_Eval\fR instead. Furthermore, \fBTcl_RecordAndEval\fR should
- only be called with top-level commands typed by the user, since the
- purpose of history is to allow the user to re-issue recently-invoked
- commands.
- .PP
- This procedure does three things. First, it initializes history for
- the interpreter \fIinterp\fR, if this is the first call for \fIinterp\fR.
- Among other things, this makes the \fBhistory\fR command available in
- \fIinterp\fR. If \fBTcl_RecordAndEval\fR isn't called for an interpreter
- then there will be no \fBhistory\fR command in that interpreter. Second,
- \fBTcl_RecordAndEval\fR saves \fIcommand\fR in
- the history list for \fBinterp\fR, making a new event to hold the
- command. Third,
- \fBTcl_RecordAndEval\fR executes the command by passing it
- and \fIflags\fR to \fBTcl_Eval\fR. If \fIflags\fR is -1 then only
- the first two steps are taken; the command will not be executed.
-
- .SH KEYWORDS
- command, event, execute, history, interpreter, record
-