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Annotation of researchv10no/cmd/worm/scsi/tcl/Tcl_GetVar.man, revision 1.1

1.1     ! root        1: '\" Copyright 1989 Regents of the University of California
        !             2: '\" Permission to use, copy, modify, and distribute this
        !             3: '\" documentation for any purpose and without fee is hereby
        !             4: '\" granted, provided that this notice appears in all copies.
        !             5: '\" The University of California makes no representations about
        !             6: '\" the suitability of this material for any purpose.  It is
        !             7: '\" provided "as is" without express or implied warranty.
        !             8: '\" 
        !             9: '\" $Header: /sprite/src/lib/tcl/RCS/Tcl_GetVar.man,v 1.3 90/03/11 17:22:41 ouster Exp $ SPRITE (Berkeley)
        !            10: '\" 
        !            11: .so \*(]ltmac.sprite
        !            12: .HS Tcl_GetVar tcl
        !            13: .BS
        !            14: .SH NAME
        !            15: Tcl_GetVar \- return the value of a Tcl variable
        !            16: .SH SYNOPSIS
        !            17: .nf
        !            18: \fB#include <tcl.h>\fR
        !            19: .sp
        !            20: char *
        !            21: \fBTcl_GetVar\fR(\fIinterp, varName, global\fR)
        !            22: .SH ARGUMENTS
        !            23: .AS Tcl_Interp *interp
        !            24: .AP Tcl_Interp *interp in
        !            25: Interpreter in which to check for variable.
        !            26: .AP char *varName in
        !            27: Name of desired variable.
        !            28: .AP int global in
        !            29: If non-zero, then insist that \fIvarName\fR be interpreted as
        !            30: a global variable regardless of whether a procedure invocation
        !            31: is in progress.
        !            32: .BE
        !            33: 
        !            34: .SH DESCRIPTION
        !            35: .PP
        !            36: \fBTcl_GetVar\fR is a utility procedure used by several of the Tcl commands.
        !            37: It returns the value of variable \fIvarName\fR in
        !            38: interpreter \fIinterp\fR.  If there isn't a Tcl command procedure
        !            39: being interpreted right now, or if \fIglobal\fR is non-zero,
        !            40: then \fIvarName\fR is always treated
        !            41: as the name of a global variable.  Otherwise, if a procedure is
        !            42: being interpreted,
        !            43: then \fIvarName\fR will be treated as a local variable name, unless
        !            44: it has been declared global using the \fBglobal\fR command.  If
        !            45: no variable by the name \fIvarName\fR exists right now, then a NULL
        !            46: pointer is returned.
        !            47: 
        !            48: .SH KEYWORDS
        !            49: interpreter, global, local, variable

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