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/*
* tclGet.c --
*
* This file contains procedures to convert strings into
* other forms, like integers or floating-point numbers or
* booleans, doing syntax checking along the way.
*
* Copyright (c) 1990-1993 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tclGet.c,v 1.14 2005/05/03 18:08:18 dgp Exp $
*/
#include "tclInt.h"
/*
*----------------------------------------------------------------------
*
* Tcl_GetInt --
*
* Given a string, produce the corresponding integer value.
*
* Results:
* The return value is normally TCL_OK; in this case *intPtr
* will be set to the integer value equivalent to src. If
* src is improperly formed then TCL_ERROR is returned and
* an error message will be left in the interp's result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
Tcl_GetInt(interp, src, intPtr)
Tcl_Interp *interp; /* Interpreter to use for error reporting. */
CONST char *src; /* String containing a (possibly signed)
* integer in a form acceptable to strtoul. */
int *intPtr; /* Place to store converted result. */
{
Tcl_Obj obj;
int code;
obj.refCount = 1;
obj.bytes = (char *) src;
obj.length = strlen(src);
obj.typePtr = NULL;
code = Tcl_GetIntFromObj(interp, &obj, intPtr);
if (obj.refCount > 1) {
Tcl_Panic("invalid sharing of Tcl_Obj on C stack");
}
return code;
}
/*
*----------------------------------------------------------------------
*
* TclGetLong --
*
* Given a string, produce the corresponding long integer value.
* This routine is a version of Tcl_GetInt but returns a "long"
* instead of an "int".
*
* Results:
* The return value is normally TCL_OK; in this case *longPtr
* will be set to the long integer value equivalent to src. If
* src is improperly formed then TCL_ERROR is returned and
* an error message will be left in the interp's result if interp
* is non-NULL.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TclGetLong(interp, src, longPtr)
Tcl_Interp *interp; /* Interpreter used for error reporting
* if not NULL. */
CONST char *src; /* String containing a (possibly signed)
* long integer in a form acceptable to
* strtoul. */
long *longPtr; /* Place to store converted long result. */
{
Tcl_Obj obj;
int code;
obj.refCount = 1;
obj.bytes = (char *) src;
obj.length = strlen(src);
obj.typePtr = NULL;
code = Tcl_GetLongFromObj(interp, &obj, longPtr);
if (obj.refCount > 1) {
Tcl_Panic("invalid sharing of Tcl_Obj on C stack");
}
return code;
}
/*
*----------------------------------------------------------------------
*
* Tcl_GetDouble --
*
* Given a string, produce the corresponding double-precision
* floating-point value.
*
* Results:
* The return value is normally TCL_OK; in this case *doublePtr
* will be set to the double-precision value equivalent to src.
* If src is improperly formed then TCL_ERROR is returned and
* an error message will be left in the interp's result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
Tcl_GetDouble(interp, src, doublePtr)
Tcl_Interp *interp; /* Interpreter used for error reporting. */
CONST char *src; /* String containing a floating-point number
* in a form acceptable to strtod. */
double *doublePtr; /* Place to store converted result. */
{
Tcl_Obj obj;
int code;
obj.refCount = 1;
obj.bytes = (char *) src;
obj.length = strlen(src);
obj.typePtr = NULL;
code = Tcl_GetDoubleFromObj(interp, &obj, doublePtr);
if (obj.refCount > 1) {
Tcl_Panic("invalid sharing of Tcl_Obj on C stack");
}
return code;
}
/*
*----------------------------------------------------------------------
*
* Tcl_GetBoolean --
*
* Given a string, return a 0/1 boolean value corresponding
* to the string.
*
* Results:
* The return value is normally TCL_OK; in this case *boolPtr
* will be set to the 0/1 value equivalent to src. If
* src is improperly formed then TCL_ERROR is returned and
* an error message will be left in the interp's result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
Tcl_GetBoolean(interp, src, boolPtr)
Tcl_Interp *interp; /* Interpreter used for error reporting. */
CONST char *src; /* String containing a boolean number
* specified either as 1/0 or true/false or
* yes/no. */
int *boolPtr; /* Place to store converted result, which
* will be 0 or 1. */
{
Tcl_Obj obj;
int code;
obj.refCount = 1;
obj.bytes = (char *) src;
obj.length = strlen(src);
obj.typePtr = NULL;
code = Tcl_ConvertToType(interp, &obj, &tclBooleanType);
if (obj.refCount > 1) {
Tcl_Panic("invalid sharing of Tcl_Obj on C stack");
}
if (code == TCL_OK) {
*boolPtr = obj.internalRep.longValue;
}
return code;
}
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