Use Tcl_PrintfObj to generate more (complex) error messages.

9 files changed, 62 insertions, 97 deletions

diff --git a/generic/tclAssembly.c b/generic/tclAssembly.c
index eca934f..f45ae07 100644
--- a/generic/tclAssembly.c
+++ b/generic/tclAssembly.c
@@ -2292,15 +2292,12 @@ CheckNamespaceQualifiers(
     const char* name,		/* Variable name to check */
     int nameLen)		/* Length of the variable */
 {
-    Tcl_Obj* result;		/* Error message */
     const char* p;
 
     for (p = name; p+2 < name+nameLen;  p++) {
 	if ((*p == ':') && (p[1] == ':')) {
-	    result = Tcl_NewStringObj("variable \"", -1);
-	    Tcl_AppendToObj(result, name, -1);
-	    Tcl_AppendToObj(result, "\" is not local", -1);
-	    Tcl_SetObjResult(interp, result);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "variable \"%s\" is not local", name));
 	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NONLOCAL", name, NULL);
 	    return TCL_ERROR;
 	}
diff --git a/generic/tclBasic.c b/generic/tclBasic.c
index c46510c..a44d736 100644
--- a/generic/tclBasic.c
+++ b/generic/tclBasic.c
@@ -3645,12 +3645,8 @@ Tcl_GetMathFuncInfo(
      */
 
     if (cmdPtr == NULL) {
-	Tcl_Obj *message;
-
-	TclNewLiteralStringObj(message, "unknown math function \"");
-	Tcl_AppendToObj(message, name, -1);
-	Tcl_AppendToObj(message, "\"", 1);
-	Tcl_SetObjResult(interp, message);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "unknown math function \"%s\"", name));
 	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "MATHFUNC", name, NULL);
 	*numArgsPtr = -1;
 	*argTypesPtr = NULL;
diff --git a/generic/tclFileName.c b/generic/tclFileName.c
index 05ecb04..8ed6f96 100644
--- a/generic/tclFileName.c
+++ b/generic/tclFileName.c
@@ -1210,7 +1210,7 @@ Tcl_GlobObjCmd(
     int index, i, globFlags, length, join, dir, result;
     char *string;
     const char *separators;
-    Tcl_Obj *typePtr, *resultPtr, *look;
+    Tcl_Obj *typePtr, *look;
     Tcl_Obj *pathOrDir = NULL;
     Tcl_DString prefix;
     static const char *const options[] = {
@@ -1497,8 +1497,8 @@ Tcl_GlobObjCmd(
 	    } else {
 		Tcl_Obj *item;
 
-		if ((Tcl_ListObjLength(NULL, look, &len) == TCL_OK) &&
-			(len == 3)) {
+		if ((Tcl_ListObjLength(NULL, look, &len) == TCL_OK)
+			&& (len == 3)) {
 		    Tcl_ListObjIndex(interp, look, 0, &item);
 		    if (!strcmp("macintosh", Tcl_GetString(item))) {
 			Tcl_ListObjIndex(interp, look, 1, &item);
@@ -1528,10 +1528,9 @@ Tcl_GlobObjCmd(
 		 */
 
 	    badTypesArg:
-		TclNewObj(resultPtr);
-		Tcl_AppendToObj(resultPtr, "bad argument to \"-types\": ", -1);
-		Tcl_AppendObjToObj(resultPtr, look);
-		Tcl_SetObjResult(interp, resultPtr);
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"bad argument to \"-types\": %s",
+			Tcl_GetString(look)));
 		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "BAD", NULL);
 		result = TCL_ERROR;
 		join = 0;
@@ -1624,6 +1623,7 @@ Tcl_GlobObjCmd(
 		Tcl_AppendResult(interp, Tcl_DStringValue(&prefix), NULL);
 	    } else {
 		const char *sep = "";
+
 		for (i = 0; i < objc; i++) {
 		    string = Tcl_GetString(objv[i]);
 		    Tcl_AppendResult(interp, sep, string, NULL);
diff --git a/generic/tclIO.c b/generic/tclIO.c
index c7fab6c..78c1dc0 100644
--- a/generic/tclIO.c
+++ b/generic/tclIO.c
@@ -2095,12 +2095,9 @@ Tcl_GetChannelHandle(
 
     chanPtr = ((Channel *) chan)->state->bottomChanPtr;
     if (!chanPtr->typePtr->getHandleProc) {
-	Tcl_Obj *err;
-
-	TclNewLiteralStringObj(err, "channel \"");
-	Tcl_AppendToObj(err, Tcl_GetChannelName(chan), -1);
-	Tcl_AppendToObj(err, "\" does not support OS handles", -1);
-	Tcl_SetChannelError(chan, err);
+        Tcl_SetChannelError(chan, Tcl_ObjPrintf(
+                "channel \"%s\" does not support OS handles",
+                Tcl_GetChannelName(chan)));
 	return TCL_ERROR;
     }
     result = chanPtr->typePtr->getHandleProc(chanPtr->instanceData, direction,
diff --git a/generic/tclIORChan.c b/generic/tclIORChan.c
index 683e2e4..9ba42ef 100644
--- a/generic/tclIORChan.c
+++ b/generic/tclIORChan.c
@@ -605,11 +605,9 @@ TclChanCreateObjCmd(
      */
 
     if (Tcl_ListObjGetElements(NULL, resObj, &listc, &listv) != TCL_OK) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, " initialize\" returned non-list: ", -1);
-	Tcl_AppendObjToObj(err, resObj);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s initialize\" returned non-list: %s",
+                Tcl_GetString(cmdObj), Tcl_GetString(resObj)));
 	Tcl_DecrRefCount(resObj);
 	goto error;
     }
@@ -633,42 +631,37 @@ TclChanCreateObjCmd(
     Tcl_DecrRefCount(resObj);
 
     if ((REQUIRED_METHODS & methods) != REQUIRED_METHODS) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" does not support all required methods", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" does not support all required methods",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
     if ((mode & TCL_READABLE) && !HAS(methods, METH_READ)) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" lacks a \"read\" method", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" lacks a \"read\" method",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
     if ((mode & TCL_WRITABLE) && !HAS(methods, METH_WRITE)) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" lacks a \"write\" method", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" lacks a \"write\" method",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
     if (!IMPLIES(HAS(methods, METH_CGET), HAS(methods, METH_CGETALL))) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" supports \"cget\" but not \"cgetall\"", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" supports \"cget\" but not \"cgetall\"",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
     if (!IMPLIES(HAS(methods, METH_CGETALL), HAS(methods, METH_CGET))) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" supports \"cgetall\" but not \"cget\"", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" supports \"cgetall\" but not \"cget\"",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
diff --git a/generic/tclIORTrans.c b/generic/tclIORTrans.c
index 5bd77b7..272306b 100644
--- a/generic/tclIORTrans.c
+++ b/generic/tclIORTrans.c
@@ -601,11 +601,9 @@ TclChanPushObjCmd(
      */
 
     if (Tcl_ListObjGetElements(NULL, resObj, &listc, &listv) != TCL_OK) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, " initialize\" returned non-list: ", -1);
-	Tcl_AppendObjToObj(err, resObj);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s initialize\" returned non-list: %s",
+                Tcl_GetString(cmdObj), Tcl_GetString(resObj)));
 	Tcl_DecrRefCount(resObj);
 	goto error;
     }
@@ -629,10 +627,9 @@ TclChanPushObjCmd(
     Tcl_DecrRefCount(resObj);
 
     if ((REQUIRED_METHODS & methods) != REQUIRED_METHODS) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" does not support all required methods", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" does not support all required methods",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
@@ -652,10 +649,9 @@ TclChanPushObjCmd(
     }
 
     if (!mode) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" makes the channel inacessible", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" makes the channel inaccessible",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
@@ -664,18 +660,16 @@ TclChanPushObjCmd(
      */
 
     if (!IMPLIES(HAS(methods, METH_DRAIN), HAS(methods, METH_READ))) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" supports \"drain\" but not \"read\"", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" supports \"drain\" but not \"read\"",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
     if (!IMPLIES(HAS(methods, METH_FLUSH), HAS(methods, METH_WRITE))) {
-	TclNewLiteralStringObj(err, "chan handler \"");
-	Tcl_AppendObjToObj(err, cmdObj);
-	Tcl_AppendToObj(err, "\" supports \"flush\" but not \"write\"", -1);
-	Tcl_SetObjResult(interp, err);
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                "chan handler \"%s\" supports \"flush\" but not \"write\"",
+                Tcl_GetString(cmdObj)));
 	goto error;
     }
 
diff --git a/generic/tclObj.c b/generic/tclObj.c
index a1316d9..099b67d 100644
--- a/generic/tclObj.c
+++ b/generic/tclObj.c
@@ -2763,12 +2763,9 @@ Tcl_GetLongFromObj(
 #endif
 	if (objPtr->typePtr == &tclDoubleType) {
 	    if (interp != NULL) {
-		Tcl_Obj *msg;
-
-		TclNewLiteralStringObj(msg, "expected integer but got \"");
-		Tcl_AppendObjToObj(msg, objPtr);
-		Tcl_AppendToObj(msg, "\"", -1);
-		Tcl_SetObjResult(interp, msg);
+                Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                        "expected integer but got \"%s\"",
+                        Tcl_GetString(objPtr)));
 		Tcl_SetErrorCode(interp, "TCL", "VALUE", "INTEGER", NULL);
 	    }
 	    return TCL_ERROR;
@@ -3067,12 +3064,9 @@ Tcl_GetWideIntFromObj(
 	}
 	if (objPtr->typePtr == &tclDoubleType) {
 	    if (interp != NULL) {
-		Tcl_Obj *msg;
-
-		TclNewLiteralStringObj(msg, "expected integer but got \"");
-		Tcl_AppendObjToObj(msg, objPtr);
-		Tcl_AppendToObj(msg, "\"", -1);
-		Tcl_SetObjResult(interp, msg);
+                Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                        "expected integer but got \"%s\"",
+                        Tcl_GetString(objPtr)));
 		Tcl_SetErrorCode(interp, "TCL", "VALUE", "INTEGER", NULL);
 	    }
 	    return TCL_ERROR;
@@ -3401,12 +3395,9 @@ GetBignumFromObj(
 #endif
 	if (objPtr->typePtr == &tclDoubleType) {
 	    if (interp != NULL) {
-		Tcl_Obj *msg;
-
-		TclNewLiteralStringObj(msg, "expected integer but got \"");
-		Tcl_AppendObjToObj(msg, objPtr);
-		Tcl_AppendToObj(msg, "\"", -1);
-		Tcl_SetObjResult(interp, msg);
+                Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                        "expected integer but got \"%s\"",
+                        Tcl_GetString(objPtr)));
 		Tcl_SetErrorCode(interp, "TCL", "VALUE", "INTEGER", NULL);
 	    }
 	    return TCL_ERROR;
diff --git a/generic/tclProc.c b/generic/tclProc.c
index 48f472f..50cf0f7 100644
--- a/generic/tclProc.c
+++ b/generic/tclProc.c
@@ -2480,7 +2480,7 @@ SetLambdaFromAny(
 {
     Interp *iPtr = (Interp *) interp;
     const char *name;
-    Tcl_Obj *argsPtr, *bodyPtr, *nsObjPtr, **objv, *errPtr;
+    Tcl_Obj *argsPtr, *bodyPtr, *nsObjPtr, **objv;
     int objc, result;
     Proc *procPtr;
 
@@ -2495,10 +2495,9 @@ SetLambdaFromAny(
 
     result = TclListObjGetElements(NULL, objPtr, &objc, &objv);
     if ((result != TCL_OK) || ((objc != 2) && (objc != 3))) {
-	TclNewLiteralStringObj(errPtr, "can't interpret \"");
-	Tcl_AppendObjToObj(errPtr, objPtr);
-	Tcl_AppendToObj(errPtr, "\" as a lambda expression", -1);
-	Tcl_SetObjResult(interp, errPtr);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't interpret \"%s\" as a lambda expression",
+		Tcl_GetString(objPtr)));
 	Tcl_SetErrorCode(interp, "TCL", "VALUE", "LAMBDA", NULL);
 	return TCL_ERROR;
     }
diff --git a/generic/tclStrToD.c b/generic/tclStrToD.c
index 15bff3e..8a961ff 100755
--- a/generic/tclStrToD.c
+++ b/generic/tclStrToD.c
@@ -1384,11 +1384,9 @@ TclParseNumber(
 
     if (status != TCL_OK) {
 	if (interp != NULL) {
-	    Tcl_Obj *msg;
+	    Tcl_Obj *msg = Tcl_ObjPrintf("expected %s but got \"",
+		    expected);
 
-	    TclNewLiteralStringObj(msg, "expected ");
-	    Tcl_AppendToObj(msg, expected, -1);
-	    Tcl_AppendToObj(msg, " but got \"", -1);
 	    Tcl_AppendLimitedToObj(msg, bytes, numBytes, 50, "");
 	    Tcl_AppendToObj(msg, "\"", -1);
 	    if (state == BAD_OCTAL) {