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/*
* tclCompExpr.c --
*
* This file contains the code to parse and compile Tcl expressions
* and implementations of the Tcl commands corresponding to expression
* operators, such as the command ::tcl::mathop::+ .
*
* Contributions from Don Porter, NIST, 2006-2007. (not subject to US copyright)
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tclCompExpr.c,v 1.53.2.11 2007/10/17 14:38:34 dgp Exp $
* RCS: @(#) $Id: tclCompExpr.c,v 1.53.2.12 2007/11/12 19:18:15 dgp Exp $
*/
#include "tclInt.h"
#include "tclCompile.h" /* CompileEnv */
/*
* Expression parsing takes place in the routine ParseExpr(). It takes a
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Tcl_Obj *const *litObjv;
Tcl_Obj **funcObjv;
/* TIP #280 : Track Lines within the expression */
TclAdvanceLines(&envPtr->line, script,
script + TclParseAllWhiteSpace(script, numBytes));
Tcl_ListObjGetElements(NULL, litList, &objc, (Tcl_Obj ***)&litObjv);
Tcl_ListObjGetElements(NULL, funcList, &objc, &funcObjv);
TclListObjGetElements(NULL, litList, &objc, (Tcl_Obj ***)&litObjv);
TclListObjGetElements(NULL, funcList, &objc, &funcObjv);
CompileExprTree(interp, opTree, 0, &litObjv, funcObjv,
parsePtr->tokenPtr, envPtr, 1 /* optimize */);
} else {
TclCompileSyntaxError(interp, envPtr);
}
Tcl_FreeParse(parsePtr);
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case FUNCTION: {
Tcl_DString cmdName;
const char *p;
int length;
Tcl_DStringInit(&cmdName);
Tcl_DStringAppend(&cmdName, "tcl::mathfunc::", -1);
p = Tcl_GetStringFromObj(*funcObjv++, &length);
p = TclGetStringFromObj(*funcObjv, &length);
funcObjv++;
Tcl_DStringAppend(&cmdName, p, length);
TclEmitPush(TclRegisterNewNSLiteral(envPtr,
Tcl_DStringValue(&cmdName),
Tcl_DStringLength(&cmdName)), envPtr);
Tcl_DStringFree(&cmdName);
/*
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case OT_EMPTY:
numWords = 1; /* No arguments, so just the command */
break;
case OT_LITERAL: {
Tcl_Obj *const *litObjv = *litObjvPtr;
Tcl_Obj *literal = *litObjv;
int length;
const char *bytes = Tcl_GetStringFromObj(literal, &length);
const char *bytes = TclGetStringFromObj(literal, &length);
TclEmitPush(TclRegisterNewLiteral(envPtr, bytes, length), envPtr);
(*litObjvPtr)++;
break;
}
case OT_TOKENS:
TclCompileTokens(interp, tokenPtr+1, tokenPtr->numComponents,
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