static int
AddFromString(
Tcl_Interp *interp, /* Interpreter to use for reporting results. */
Tk_Window tkwin, /* Token for window: options are entered for
* this window's main window. */
char *string, /* String containing option specifiers. */
int priority) /* Priority level to use for options in this
* string, such as TK_USER_DEFAULT_PRIO or
* TK_INTERACTIVE_PRIO. Must be between 0 and
* TK_MAX_PRIO. */
{
register char *src, *dst;
char *name, *value;
int lineNum;
src = string;
lineNum = 1;
while (1) {
/*
* Skip leading white space and empty lines and comment lines, and
* check for the end of the spec.
*/
while ((*src == ' ') || (*src == '\t')) {
src++;
}
if ((*src == '#') || (*src == '!')) {
do {
src++;
if ((src[0] == '\\') && (src[1] == '\n')) {
src += 2;
lineNum++;
}
} while ((*src != '\n') && (*src != 0));
}
if (*src == '\n') {
src++;
lineNum++;
continue;
}
if (*src == '\0') {
break;
}
/*
* Parse off the option name, collapsing out backslash-newline
* sequences of course.
*/
dst = name = src;
while (*src != ':') {
if ((*src == '\0') || (*src == '\n')) {
char buf[32 + TCL_INTEGER_SPACE];
sprintf(buf, "missing colon on line %d", lineNum);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
return TCL_ERROR;
}
if ((src[0] == '\\') && (src[1] == '\n')) {
src += 2;
lineNum++;
} else {
*dst = *src;
dst++;
src++;
}
}
/*
* Eliminate trailing white space on the name, and null-terminate
* it.
*/
while ((dst != name) && ((dst[-1] == ' ') || (dst[-1] == '\t'))) {
dst--;
}
*dst = '\0';
/*
* Skip white space between the name and the value.
*/
src++;
while ((*src == ' ') || (*src == '\t')) {
src++;
}
if (*src == '\0') {
char buf[32 + TCL_INTEGER_SPACE];
sprintf(buf, "missing value on line %d", lineNum);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
return TCL_ERROR;
}
/*
* Parse off the value, squeezing out backslash-newline sequences
* along the way.
*/
dst = value = src;
while (*src != '\n') {
if (*src == '\0') {
char buf[32 + TCL_INTEGER_SPACE];
sprintf(buf, "missing newline on line %d", lineNum);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
return TCL_ERROR;
}
if ((src[0] == '\\') && (src[1] == '\n')) {
src += 2;
lineNum++;
} else {
*dst = *src;
dst++;
src++;
}
}
*dst = 0;
/*
* Enter the option into the database.
*/
Tk_AddOption(tkwin, name, value, priority);
src++;
lineNum++;
}
return TCL_OK;
}
int
Tk_ParseArgv(
Tcl_Interp *interp, /* Place to store error message. */
Tk_Window tkwin, /* Window to use for setting Tk options. NULL
* means ignore Tk option specs. */
int *argcPtr, /* Number of arguments in argv. Modified to
* hold # args left in argv at end. */
CONST char **argv, /* Array of arguments. Modified to hold those
* that couldn't be processed here. */
Tk_ArgvInfo *argTable, /* Array of option descriptions */
int flags) /* Or'ed combination of various flag bits,
* such as TK_ARGV_NO_DEFAULTS. */
{
register Tk_ArgvInfo *infoPtr;
/* Pointer to the current entry in the table
* of argument descriptions. */
Tk_ArgvInfo *matchPtr; /* Descriptor that matches current argument. */
CONST char *curArg; /* Current argument */
register char c; /* Second character of current arg (used for
* quick check for matching; use 2nd char.
* because first char. will almost always be
* '-'). */
int srcIndex; /* Location from which to read next argument
* from argv. */
int dstIndex; /* Index into argv to which next unused
* argument should be copied (never greater
* than srcIndex). */
int argc; /* # arguments in argv still to process. */
size_t length; /* Number of characters in current argument. */
int i;
if (flags & TK_ARGV_DONT_SKIP_FIRST_ARG) {
srcIndex = dstIndex = 0;
argc = *argcPtr;
} else {
srcIndex = dstIndex = 1;
argc = *argcPtr-1;
}
while (argc > 0) {
curArg = argv[srcIndex];
srcIndex++;
argc--;
length = strlen(curArg);
if (length > 0) {
c = curArg[1];
} else {
c = 0;
}
/*
* Loop throught the argument descriptors searching for one with the
* matching key string. If found, leave a pointer to it in matchPtr.
*/
matchPtr = NULL;
for (i = 0; i < 2; i++) {
if (i == 0) {
infoPtr = argTable;
} else {
infoPtr = defaultTable;
}
for (; (infoPtr != NULL) && (infoPtr->type != TK_ARGV_END);
infoPtr++) {
if (infoPtr->key == NULL) {
continue;
}
if ((infoPtr->key[1] != c)
|| (strncmp(infoPtr->key, curArg, length) != 0)) {
continue;
}
if ((tkwin == NULL)
&& ((infoPtr->type == TK_ARGV_CONST_OPTION)
|| (infoPtr->type == TK_ARGV_OPTION_VALUE)
|| (infoPtr->type == TK_ARGV_OPTION_NAME_VALUE))) {
continue;
}
if (infoPtr->key[length] == 0) {
matchPtr = infoPtr;
goto gotMatch;
}
if (flags & TK_ARGV_NO_ABBREV) {
continue;
}
if (matchPtr != NULL) {
Tcl_AppendResult(interp, "ambiguous option \"", curArg,
"\"", NULL);
return TCL_ERROR;
}
matchPtr = infoPtr;
}
}
if (matchPtr == NULL) {
/*
* Unrecognized argument. Just copy it down, unless the caller
* prefers an error to be registered.
*/
if (flags & TK_ARGV_NO_LEFTOVERS) {
Tcl_AppendResult(interp, "unrecognized argument \"",
curArg, "\"", NULL);
return TCL_ERROR;
}
argv[dstIndex] = curArg;
dstIndex++;
continue;
}
/*
* Take the appropriate action based on the option type
*/
gotMatch:
infoPtr = matchPtr;
switch (infoPtr->type) {
case TK_ARGV_CONSTANT:
*((int *) infoPtr->dst) = PTR2INT(infoPtr->src);
break;
case TK_ARGV_INT:
if (argc == 0) {
goto missingArg;
} else {
char *endPtr;
*((int *) infoPtr->dst) = strtol(argv[srcIndex], &endPtr, 0);
if ((endPtr == argv[srcIndex]) || (*endPtr != 0)) {
Tcl_AppendResult(interp,"expected integer argument for \"",
infoPtr->key, "\" but got \"", argv[srcIndex],
"\"", NULL);
return TCL_ERROR;
}
srcIndex++;
argc--;
}
break;
case TK_ARGV_STRING:
if (argc == 0) {
goto missingArg;
}
*((CONST char **)infoPtr->dst) = argv[srcIndex];
srcIndex++;
argc--;
break;
case TK_ARGV_UID:
if (argc == 0) {
goto missingArg;
}
*((Tk_Uid *)infoPtr->dst) = Tk_GetUid(argv[srcIndex]);
srcIndex++;
argc--;
break;
case TK_ARGV_REST:
*((int *) infoPtr->dst) = dstIndex;
goto argsDone;
case TK_ARGV_FLOAT:
if (argc == 0) {
goto missingArg;
} else {
char *endPtr;
*((double *) infoPtr->dst) = strtod(argv[srcIndex], &endPtr);
if ((endPtr == argv[srcIndex]) || (*endPtr != 0)) {
Tcl_AppendResult(interp, "expected floating-point ",
"argument for \"", infoPtr->key, "\" but got \"",
argv[srcIndex], "\"", NULL);
return TCL_ERROR;
}
srcIndex++;
argc--;
}
break;
case TK_ARGV_FUNC: {
typedef int (ArgvFunc)(char *, char *, CONST char *);
ArgvFunc *handlerProc = (ArgvFunc *) infoPtr->src;
if ((*handlerProc)(infoPtr->dst, infoPtr->key, argv[srcIndex])) {
srcIndex++;
argc--;
}
break;
}
case TK_ARGV_GENFUNC: {
typedef int (ArgvGenFunc)(char *, Tcl_Interp *, char *, int,
CONST char **);
ArgvGenFunc *handlerProc = (ArgvGenFunc *) infoPtr->src;
argc = (*handlerProc)(infoPtr->dst, interp, infoPtr->key,
argc, argv+srcIndex);
if (argc < 0) {
return TCL_ERROR;
}
break;
}
case TK_ARGV_HELP:
PrintUsage(interp, argTable, flags);
return TCL_ERROR;
case TK_ARGV_CONST_OPTION:
Tk_AddOption(tkwin, infoPtr->dst, infoPtr->src,
TK_INTERACTIVE_PRIO);
break;
case TK_ARGV_OPTION_VALUE:
if (argc < 1) {
goto missingArg;
}
Tk_AddOption(tkwin, infoPtr->dst, argv[srcIndex],
TK_INTERACTIVE_PRIO);
srcIndex++;
argc--;
break;
case TK_ARGV_OPTION_NAME_VALUE:
if (argc < 2) {
Tcl_AppendResult(interp, "\"", curArg,
"\" option requires two following arguments", NULL);
return TCL_ERROR;
}
Tk_AddOption(tkwin, argv[srcIndex], argv[srcIndex+1],
TK_INTERACTIVE_PRIO);
srcIndex += 2;
argc -= 2;
break;
default: {
char buf[64 + TCL_INTEGER_SPACE];
sprintf(buf, "bad argument type %d in Tk_ArgvInfo", infoPtr->type);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
return TCL_ERROR;
}
}
}
/*
* If we broke out of the loop because of an OPT_REST argument, copy the
* remaining arguments down.
*/
argsDone:
while (argc) {
argv[dstIndex] = argv[srcIndex];
srcIndex++;
dstIndex++;
argc--;
}
argv[dstIndex] = NULL;
*argcPtr = dstIndex;
return TCL_OK;
missingArg:
Tcl_AppendResult(interp, "\"", curArg,
"\" option requires an additional argument", NULL);
return TCL_ERROR;
}
int
Tk_OptionObjCmd(
ClientData clientData, /* Main window associated with interpreter. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of Tcl_Obj arguments. */
Tcl_Obj *const objv[]) /* Tcl_Obj arguments. */
{
Tk_Window tkwin = clientData;
int index, result;
ThreadSpecificData *tsdPtr =
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
static const char *const optionCmds[] = {
"add", "clear", "get", "readfile", NULL
};
enum optionVals {
OPTION_ADD, OPTION_CLEAR, OPTION_GET, OPTION_READFILE
};
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "cmd arg ?arg ...?");
return TCL_ERROR;
}
result = Tcl_GetIndexFromObj(interp, objv[1], optionCmds, "option", 0,
&index);
if (result != TCL_OK) {
return result;
}
result = TCL_OK;
switch ((enum optionVals) index) {
case OPTION_ADD: {
int priority;
if ((objc != 4) && (objc != 5)) {
Tcl_WrongNumArgs(interp, 2, objv, "pattern value ?priority?");
return TCL_ERROR;
}
if (objc == 4) {
priority = TK_INTERACTIVE_PRIO;
} else {
priority = ParsePriority(interp, Tcl_GetString(objv[4]));
if (priority < 0) {
return TCL_ERROR;
}
}
Tk_AddOption(tkwin, Tcl_GetString(objv[2]), Tcl_GetString(objv[3]),
priority);
break;
}
case OPTION_CLEAR: {
TkMainInfo *mainPtr;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 2, objv, "");
return TCL_ERROR;
}
mainPtr = ((TkWindow *) tkwin)->mainPtr;
if (mainPtr->optionRootPtr != NULL) {
ClearOptionTree(mainPtr->optionRootPtr);
mainPtr->optionRootPtr = NULL;
}
tsdPtr->cachedWindow = NULL;
break;
}
case OPTION_GET: {
Tk_Window window;
Tk_Uid value;
if (objc != 5) {
Tcl_WrongNumArgs(interp, 2, objv, "window name class");
return TCL_ERROR;
}
window = Tk_NameToWindow(interp, Tcl_GetString(objv[2]), tkwin);
if (window == NULL) {
return TCL_ERROR;
}
value = Tk_GetOption(window, Tcl_GetString(objv[3]),
Tcl_GetString(objv[4]));
if (value != NULL) {
Tcl_SetResult(interp, (char *) value, TCL_STATIC);
}
break;
}
case OPTION_READFILE: {
int priority;
if ((objc != 3) && (objc != 4)) {
Tcl_WrongNumArgs(interp, 2, objv, "fileName ?priority?");
return TCL_ERROR;
}
if (objc == 4) {
priority = ParsePriority(interp, Tcl_GetString(objv[3]));
if (priority < 0) {
return TCL_ERROR;
}
} else {
priority = TK_INTERACTIVE_PRIO;
}
result = ReadOptionFile(interp, tkwin, Tcl_GetString(objv[2]),
priority);
break;
}
}
return result;
}
