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authordkf <donal.k.fellows@manchester.ac.uk>2003-10-14 20:42:36 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2003-10-14 20:42:36 (GMT)
commit71d74c3491147feabe11cb5321e23ee79ddfd41d (patch)
treeda13f3018120a204268aa289bd286186e81193a2 /generic/tclCmdIL.c
parentdd08d357ebf5c18a2de038e6600bc9a1f6436be5 (diff)
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Diffstat (limited to 'generic/tclCmdIL.c')
-rw-r--r--generic/tclCmdIL.c247
1 files changed, 116 insertions, 131 deletions
diff --git a/generic/tclCmdIL.c b/generic/tclCmdIL.c
index e9e8685..3f8a0df 100644
--- a/generic/tclCmdIL.c
+++ b/generic/tclCmdIL.c
@@ -15,7 +15,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclCmdIL.c,v 1.53 2003/10/14 13:38:58 dkf Exp $
+ * RCS: @(#) $Id: tclCmdIL.c,v 1.54 2003/10/14 20:42:36 dkf Exp $
*/
#include "tclInt.h"
@@ -58,7 +58,7 @@ typedef struct SortInfo {
* being done. */
int resultCode; /* Completion code for the lsort command.
* If an error occurs during the sort this
- * is changed from TCL_OK to TCL_ERROR. */
+ * is changed from TCL_OK to TCL_ERROR. */
} SortInfo;
/*
@@ -234,7 +234,7 @@ Tcl_IfObjCmd(dummy, interp, objc, objv)
thenScriptIndex = i;
value = 0;
}
-
+
/*
* The expression evaluated to false. Skip the command, then
* see if there is an "else" or "elseif" clause.
@@ -315,7 +315,7 @@ Tcl_IncrObjCmd(dummy, interp, objc, objv)
Tcl_WideInt wideIncrAmount;
Tcl_Obj *newValuePtr;
int isWide = 0;
-
+
if ((objc != 2) && (objc != 3)) {
Tcl_WrongNumArgs(interp, 1, objv, "varName ?increment?");
return TCL_ERROR;
@@ -324,7 +324,7 @@ Tcl_IncrObjCmd(dummy, interp, objc, objv)
/*
* Calculate the amount to increment by.
*/
-
+
if (objc == 3) {
/*
* Need to be a bit cautious to ensure that [expr]-like rules
@@ -354,7 +354,7 @@ Tcl_IncrObjCmd(dummy, interp, objc, objv)
}
}
}
-
+
/*
* Increment the variable's value.
*/
@@ -424,7 +424,7 @@ Tcl_InfoObjCmd(clientData, interp, objc, objv)
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?");
return TCL_ERROR;
}
-
+
result = Tcl_GetIndexFromObj(interp, objv[1], subCmds, "option", 0,
(int *) &index);
if (result != TCL_OK) {
@@ -548,7 +548,7 @@ InfoArgsCmd(dummy, interp, objc, objv)
/*
* Build a return list containing the arguments.
*/
-
+
listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
for (localPtr = procPtr->firstLocalPtr; localPtr != NULL;
localPtr = localPtr->nextPtr) {
@@ -592,7 +592,7 @@ InfoBodyCmd(dummy, interp, objc, objv)
char *name;
Proc *procPtr;
Tcl_Obj *bodyPtr, *resultPtr;
-
+
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "procname");
return TCL_ERROR;
@@ -624,7 +624,7 @@ InfoBodyCmd(dummy, interp, objc, objv)
(void) Tcl_GetString(bodyPtr);
}
resultPtr = Tcl_NewStringObj(bodyPtr->bytes, bodyPtr->length);
-
+
Tcl_SetObjResult(interp, resultPtr);
return TCL_OK;
}
@@ -658,7 +658,7 @@ InfoCmdCountCmd(dummy, interp, objc, objv)
Tcl_Obj *CONST objv[]; /* Argument objects. */
{
Interp *iPtr = (Interp *) interp;
-
+
if (objc != 2) {
Tcl_WrongNumArgs(interp, 2, objv, NULL);
return TCL_ERROR;
@@ -776,7 +776,7 @@ InfoCommandsCmd(dummy, interp, objc, objv)
* we add in only those commands that aren't hidden by a command in
* the effective namespace.
*/
-
+
if ((nsPtr != globalNsPtr) && !specificNsInPattern) {
entryPtr = Tcl_FirstHashEntry(&globalNsPtr->cmdTable, &search);
while (entryPtr != NULL) {
@@ -792,7 +792,7 @@ InfoCommandsCmd(dummy, interp, objc, objv)
}
}
}
-
+
Tcl_SetObjResult(interp, listPtr);
return TCL_OK;
}
@@ -1065,7 +1065,7 @@ InfoGlobalsCmd(dummy, interp, objc, objv)
* Scan through the global :: namespace's variable table and create a
* list of all global variables that match the pattern.
*/
-
+
listPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
for (entryPtr = Tcl_FirstHashEntry(&globalNsPtr->varTable, &search);
entryPtr != NULL;
@@ -1331,7 +1331,7 @@ InfoLocalsCmd(dummy, interp, objc, objv)
Tcl_WrongNumArgs(interp, 2, objv, "?pattern?");
return TCL_ERROR;
}
-
+
if (iPtr->varFramePtr == NULL || !iPtr->varFramePtr->isProcCallFrame) {
return TCL_OK;
}
@@ -1341,7 +1341,7 @@ InfoLocalsCmd(dummy, interp, objc, objv)
* ones stored in the call frame), then the variables in the local hash
* table (if one exists).
*/
-
+
listPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
AppendLocals(interp, listPtr, pattern, 0);
Tcl_SetObjResult(interp, listPtr);
@@ -1402,7 +1402,7 @@ AppendLocals(interp, listPtr, pattern, includeLinks)
varPtr++;
localPtr = localPtr->nextPtr;
}
-
+
if (localVarTablePtr != NULL) {
for (entryPtr = Tcl_FirstHashEntry(localVarTablePtr, &search);
entryPtr != NULL;
@@ -1457,7 +1457,7 @@ InfoNameOfExecutableCmd(dummy, interp, objc, objv)
}
nameOfExecutable = Tcl_GetNameOfExecutable();
-
+
if (nameOfExecutable != NULL) {
Tcl_SetStringObj(Tcl_GetObjResult(interp), nameOfExecutable, -1);
}
@@ -1746,7 +1746,7 @@ InfoSharedlibCmd(dummy, interp, objc, objv)
Tcl_WrongNumArgs(interp, 2, objv, NULL);
return TCL_ERROR;
}
-
+
#ifdef TCL_SHLIB_EXT
Tcl_SetStringObj(Tcl_GetObjResult(interp), TCL_SHLIB_EXT, -1);
#endif
@@ -1880,9 +1880,9 @@ InfoVarsCmd(dummy, interp, objc, objv)
if (nsPtr == NULL) {
return TCL_OK;
}
-
+
listPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
-
+
if ((iPtr->varFramePtr == NULL)
|| !iPtr->varFramePtr->isProcCallFrame
|| specificNsInPattern) {
@@ -1892,7 +1892,7 @@ InfoVarsCmd(dummy, interp, objc, objv)
* but a specific namespace was specified. Create a list containing
* only the variables in the effective namespace's variable table.
*/
-
+
entryPtr = Tcl_FirstHashEntry(&nsPtr->varTable, &search);
while (entryPtr != NULL) {
varPtr = (Var *) Tcl_GetHashValue(entryPtr);
@@ -1945,7 +1945,7 @@ InfoVarsCmd(dummy, interp, objc, objv)
} else if (((Interp *)interp)->varFramePtr->procPtr != NULL) {
AppendLocals(interp, listPtr, simplePattern, 1);
}
-
+
Tcl_SetObjResult(interp, listPtr);
return TCL_OK;
}
@@ -2051,31 +2051,27 @@ Tcl_LindexObjCmd(dummy, interp, objc, objv)
}
/*
- * If objc == 3, then objv[ 2 ] may be either a single index or
- * a list of indices: go to TclLindexList to determine which.
- * If objc >= 4, or objc == 2, then objv[ 2 .. objc-2 ] are all
- * single indices and processed as such in TclLindexFlat.
+ * If objc==3, then objv[2] may be either a single index or a list
+ * of indices: go to TclLindexList to determine which.
+ * If objc>=4, or objc==2, then objv[2 .. objc-2] are all single
+ * indices and processed as such in TclLindexFlat.
*/
- if ( objc == 3 ) {
-
- elemPtr = TclLindexList( interp, objv[ 1 ], objv[ 2 ] );
-
+ if (objc == 3) {
+ elemPtr = TclLindexList(interp, objv[1], objv[2]);
} else {
-
- elemPtr = TclLindexFlat( interp, objv[ 1 ], objc-2, objv+2 );
-
+ elemPtr = TclLindexFlat(interp, objv[1], objc-2, objv+2);
}
-
+
/*
* Set the interpreter's object result to the last element extracted
*/
- if ( elemPtr == NULL ) {
+ if (elemPtr == NULL) {
return TCL_ERROR;
} else {
Tcl_SetObjResult(interp, elemPtr);
- Tcl_DecrRefCount( elemPtr );
+ Tcl_DecrRefCount(elemPtr);
return TCL_OK;
}
}
@@ -2094,21 +2090,22 @@ Tcl_LindexObjCmd(dummy, interp, objc, objv)
* Side effects:
* None.
*
- * If objv[1] can be parsed as a list, TclLindexList handles extraction
- * of the desired element locally. Otherwise, it invokes
- * TclLindexFlat to treat objv[1] as a scalar.
+ * Notes:
+ * If objv[1] can be parsed as a list, TclLindexList handles
+ * extraction of the desired element locally. Otherwise, it
+ * invokes TclLindexFlat to treat objv[1] as a scalar.
*
- * The reference count of the returned object includes one reference
- * corresponding to the pointer returned. Thus, the calling code will
- * usually do something like:
- * Tcl_SetObjResult( interp, result );
- * Tcl_DecrRefCount( result );
+ * The reference count of the returned object includes one
+ * reference corresponding to the pointer returned. Thus, the
+ * calling code will usually do something like:
+ * Tcl_SetObjResult(interp, result);
+ * Tcl_DecrRefCount(result);
*
*----------------------------------------------------------------------
*/
-
+
Tcl_Obj *
-TclLindexList( interp, listPtr, argPtr )
+TclLindexList(interp, listPtr, argPtr)
Tcl_Interp* interp; /* Tcl interpreter */
Tcl_Obj* listPtr; /* List being unpacked */
Tcl_Obj* argPtr; /* Index or index list */
@@ -2119,9 +2116,9 @@ TclLindexList( interp, listPtr, argPtr )
int index; /* Index into the list */
int result; /* Result returned from a Tcl library call */
int i; /* Current index number */
- Tcl_Obj** indices; /* Array of list indices */
+ Tcl_Obj **indices; /* Array of list indices */
int indexCount; /* Size of the array of list indices */
- Tcl_Obj* oldListPtr; /* Temp location to preserve the list
+ Tcl_Obj *oldListPtr; /* Temp location to preserve the list
* pointer when replacing it with a sublist */
/*
@@ -2130,23 +2127,21 @@ TclLindexList( interp, listPtr, argPtr )
* repeated shimmering; see TIP#22 and TIP#33 for the details.
*/
- if ( argPtr->typePtr != &tclListType
- && TclGetIntForIndex( NULL , argPtr, 0, &index ) == TCL_OK ) {
-
+ if (argPtr->typePtr != &tclListType
+ && TclGetIntForIndex(NULL , argPtr, 0, &index) == TCL_OK) {
/*
* argPtr designates a single index.
*/
- return TclLindexFlat( interp, listPtr, 1, &argPtr );
-
- } else if ( Tcl_ListObjGetElements( NULL, argPtr, &indexCount, &indices )
- != TCL_OK ) {
+ return TclLindexFlat(interp, listPtr, 1, &argPtr);
+ }
+ if (Tcl_ListObjGetElements(NULL, argPtr, &indexCount, &indices) != TCL_OK){
/*
* argPtr designates something that is neither an index nor a
* well-formed list. Report the error via TclLindexFlat.
*/
-
+
return TclLindexFlat( interp, listPtr, 1, &argPtr );
}
@@ -2155,30 +2150,28 @@ TclLindexList( interp, listPtr, argPtr )
* the activation record.
*/
- Tcl_IncrRefCount( listPtr );
+ Tcl_IncrRefCount(listPtr);
/*
* argPtr designates a list, and the 'else if' above has parsed it
* into indexCount and indices.
*/
- for ( i = 0; i < indexCount; ++i ) {
-
+ for (i=0 ; i<indexCount ; i++) {
/*
* Convert the current listPtr to a list if necessary.
*/
-
- result = Tcl_ListObjGetElements( interp, listPtr,
- &listLen, &elemPtrs);
+
+ result = Tcl_ListObjGetElements(interp, listPtr, &listLen, &elemPtrs);
if (result != TCL_OK) {
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
return NULL;
}
-
+
/*
* Get the index from indices[i]
*/
-
+
result = TclGetIntForIndex(interp, indices[i], /*endValue*/ listLen-1,
&index);
if (result != TCL_OK) {
@@ -2186,60 +2179,57 @@ TclLindexList( interp, listPtr, argPtr )
* Index could not be parsed
*/
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
return NULL;
- } else if ( index < 0
- || index >= listLen ) {
+ } else if (index<0 || index>=listLen) {
/*
* Index is out of range
*/
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
listPtr = Tcl_NewObj();
- Tcl_IncrRefCount( listPtr );
+ Tcl_IncrRefCount(listPtr);
return listPtr;
}
-
+
/*
* Make sure listPtr still refers to a list object.
* If it shared a Tcl_Obj structure with the arguments, then
* it might have just been converted to something else.
*/
-
+
if (listPtr->typePtr != &tclListType) {
result = Tcl_ListObjGetElements(interp, listPtr, &listLen,
&elemPtrs);
if (result != TCL_OK) {
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
return NULL;
}
}
-
+
/*
* Extract the pointer to the appropriate element
*/
-
+
oldListPtr = listPtr;
- listPtr = elemPtrs[ index ];
- Tcl_IncrRefCount( listPtr );
- Tcl_DecrRefCount( oldListPtr );
-
+ listPtr = elemPtrs[index];
+ Tcl_IncrRefCount(listPtr);
+ Tcl_DecrRefCount(oldListPtr);
+
/*
* The work we did above may have caused the internal rep
* of *argPtr to change to something else. Get it back.
*/
-
- result = Tcl_ListObjGetElements( interp, argPtr,
- &indexCount, &indices );
- if ( result != TCL_OK ) {
+
+ result = Tcl_ListObjGetElements(interp, argPtr, &indexCount, &indices);
+ if (result != TCL_OK) {
/*
* This can't happen unless some extension corrupted a Tcl_Obj.
*/
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
return NULL;
}
-
- } /* end for */
+ }
/*
* Return the last object extracted. Its reference count will include
@@ -2263,26 +2253,26 @@ TclLindexList( interp, listPtr, argPtr )
* Side effects:
* None.
*
- * This procedure is called from either tclExecute.c or
- * Tcl_LindexObjCmd whenever either is presented with
- * objc == 2 or objc >= 4. It is also called from TclLindexList
- * for the objc==3 case once it is determined that objv[2] cannot
- * be parsed as a list.
+ * Notes:
+ * This procedure is called from either tclExecute.c or
+ * Tcl_LindexObjCmd whenever either is presented with objc==2 or
+ * objc>=4. It is also called from TclLindexList for the objc==3
+ * case once it is determined that objv[2] cannot be parsed as a
+ * list.
*
*----------------------------------------------------------------------
*/
Tcl_Obj *
-TclLindexFlat( interp, listPtr, indexCount, indexArray )
- Tcl_Interp* interp; /* Tcl interpreter */
- Tcl_Obj* listPtr; /* Tcl object representing the list */
+TclLindexFlat(interp, listPtr, indexCount, indexArray)
+ Tcl_Interp *interp; /* Tcl interpreter */
+ Tcl_Obj *listPtr; /* Tcl object representing the list */
int indexCount; /* Count of indices */
- Tcl_Obj* CONST indexArray[];
+ Tcl_Obj *CONST indexArray[];
/* Array of pointers to Tcl objects
* representing the indices in the
* list */
{
-
int i; /* Current list index */
int result; /* Result of Tcl library calls */
int listLen; /* Length of the current list being
@@ -2299,72 +2289,67 @@ TclLindexFlat( interp, listPtr, indexCount, indexArray )
* maintaining in the C activation record.
*/
- Tcl_IncrRefCount( listPtr );
-
- for ( i = 0; i < indexCount; ++i ) {
+ Tcl_IncrRefCount(listPtr);
+ for (i=0 ; i<indexCount ; i++) {
/*
* Convert the current listPtr to a list if necessary.
*/
-
- result = Tcl_ListObjGetElements(interp, listPtr,
- &listLen, &elemPtrs);
+
+ result = Tcl_ListObjGetElements(interp, listPtr, &listLen, &elemPtrs);
if (result != TCL_OK) {
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
return NULL;
}
-
+
/*
* Get the index from objv[i]
*/
-
- result = TclGetIntForIndex( interp, indexArray[ i ],
- /*endValue*/ (listLen - 1),
- &index );
- if ( result != TCL_OK ) {
- /* Index could not be parsed */
+ result = TclGetIntForIndex(interp, indexArray[i],
+ /*endValue*/ listLen-1, &index);
+ if (result != TCL_OK) {
+ /*
+ * Index could not be parsed
+ */
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
return NULL;
- } else if ( index < 0
- || index >= listLen ) {
-
+ } else if (index<0 || index>=listLen) {
/*
* Index is out of range
*/
-
- Tcl_DecrRefCount( listPtr );
+
+ Tcl_DecrRefCount(listPtr);
listPtr = Tcl_NewObj();
- Tcl_IncrRefCount( listPtr );
+ Tcl_IncrRefCount(listPtr);
return listPtr;
}
-
+
/*
* Make sure listPtr still refers to a list object.
* It might have been converted to something else above
* if objv[1] overlaps with one of the other parameters.
*/
-
+
if (listPtr->typePtr != &tclListType) {
result = Tcl_ListObjGetElements(interp, listPtr, &listLen,
&elemPtrs);
if (result != TCL_OK) {
- Tcl_DecrRefCount( listPtr );
+ Tcl_DecrRefCount(listPtr);
return NULL;
}
}
-
+
/*
* Extract the pointer to the appropriate element
*/
-
+
oldListPtr = listPtr;
- listPtr = elemPtrs[ index ];
- Tcl_IncrRefCount( listPtr );
- Tcl_DecrRefCount( oldListPtr );
-
+ listPtr = elemPtrs[index];
+ Tcl_IncrRefCount(listPtr);
+ Tcl_DecrRefCount(oldListPtr);
}
return listPtr;
@@ -2451,7 +2436,7 @@ Tcl_LinsertObjCmd(dummy, interp, objc, objv)
}
return result;
}
-
+
/*
* Set the interpreter's object result.
*/
@@ -2489,7 +2474,7 @@ Tcl_ListObjCmd(dummy, interp, objc, objv)
* If there are no list elements, the result is an empty object.
* Otherwise modify the interpreter's result object to be a list object.
*/
-
+
if (objc > 1) {
Tcl_SetListObj(Tcl_GetObjResult(interp), (objc-1), &(objv[1]));
}
@@ -2608,7 +2593,7 @@ Tcl_LrangeObjCmd(notUsed, interp, objc, objv)
if (last >= listLen) {
last = (listLen - 1);
}
-
+
if (first > last) {
return TCL_OK; /* the result is an empty object */
}
@@ -3867,7 +3852,7 @@ SortCompare(objPtr1, objPtr2, infoPtr)
&objc, &objv);
infoPtr->resultCode = Tcl_EvalObjv(infoPtr->interp, objc, objv, 0);
-
+
if (infoPtr->resultCode != TCL_OK) {
Tcl_AddErrorInfo(infoPtr->interp,
"\n (-compare command)");