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diff --git a/generic/tkbltParse.C b/generic/tkbltParse.C
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+/*
+ * Smithsonian Astrophysical Observatory, Cambridge, MA, USA
+ * This code has been modified under the terms listed below and is made
+ * available under the same terms.
+ */
+
+/*
+ *
+ * This file is copied from tclParse.c in the TCL library distribution.
+ *
+ * Copyright (c) 1987-1993 The Regents of the University of
+ * California.
+ *
+ * Copyright (c) 1994-1998 Sun Microsystems, Inc.
+ *
+ */
+
+/*
+ * Since TCL 8.1.0 these routines have been replaced by ones that
+ * generate byte-codes. But since these routines are used in vector
+ * expressions, where no such byte-compilation is necessary, I now
+ * include them. In fact, the byte-compiled versions would be slower
+ * since the compiled code typically runs only one time.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <iostream>
+#include <sstream>
+#include <iomanip>
+using namespace std;
+
+#include <tcl.h>
+
+#include "tkbltParse.h"
+
+using namespace Blt;
+
+/*
+ * A table used to classify input characters to assist in parsing
+ * TCL commands. The table should be indexed with a signed character
+ * using the CHAR_TYPE macro. The character may have a negative
+ * value. The CHAR_TYPE macro takes a pointer to a signed character
+ * and a pointer to the last character in the source string. If the
+ * src pointer is pointing at the terminating null of the string,
+ * CHAR_TYPE returns TCL_COMMAND_END.
+ */
+
+#define STATIC_STRING_SPACE 150
+#define TCL_NORMAL 0x01
+#define TCL_SPACE 0x02
+#define TCL_COMMAND_END 0x04
+#define TCL_QUOTE 0x08
+#define TCL_OPEN_BRACKET 0x10
+#define TCL_OPEN_BRACE 0x20
+#define TCL_CLOSE_BRACE 0x40
+#define TCL_BACKSLASH 0x80
+#define TCL_DOLLAR 0x00
+
+/*
+ * The following table assigns a type to each character. Only types
+ * meaningful to TCL parsing are represented here. The table is
+ * designed to be referenced with either signed or unsigned characters,
+ * so it has 384 entries. The first 128 entries correspond to negative
+ * character values, the next 256 correspond to positive character
+ * values. The last 128 entries are identical to the first 128. The
+ * table is always indexed with a 128-byte offset (the 128th entry
+ * corresponds to a 0 character value).
+ */
+
+static unsigned char tclTypeTable[] =
+{
+ /*
+ * Negative character values, from -128 to -1:
+ */
+
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+
+ /*
+ * Positive character values, from 0-127:
+ */
+
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_SPACE, TCL_COMMAND_END, TCL_SPACE,
+ TCL_SPACE, TCL_SPACE, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_SPACE, TCL_NORMAL, TCL_QUOTE, TCL_NORMAL,
+ TCL_DOLLAR, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_COMMAND_END,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_OPEN_BRACKET,
+ TCL_BACKSLASH, TCL_COMMAND_END, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_OPEN_BRACE,
+ TCL_NORMAL, TCL_CLOSE_BRACE, TCL_NORMAL, TCL_NORMAL,
+
+ /*
+ * Large unsigned character values, from 128-255:
+ */
+
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+ TCL_NORMAL, TCL_NORMAL, TCL_NORMAL, TCL_NORMAL,
+};
+
+#define CHAR_TYPE(src,last) \
+ (((src)==(last))?TCL_COMMAND_END:(tclTypeTable+128)[(int)*(src)])
+
+int Blt::ParseNestedCmd(Tcl_Interp* interp, const char *string,
+ int flags, const char **termPtr, ParseValue *parsePtr)
+
+{
+ return TCL_ERROR;
+}
+
+int Blt::ParseBraces(Tcl_Interp* interp, const char *string,
+ const char **termPtr, ParseValue *parsePtr)
+{
+ int level;
+ const char *src;
+ char *dest, *end;
+ char c;
+ const char *lastChar = string + strlen(string);
+
+ src = string;
+ dest = parsePtr->next;
+ end = parsePtr->end;
+ level = 1;
+
+ /*
+ * Copy the characters one at a time to the result area, stopping
+ * when the matching close-brace is found.
+ */
+
+ for (;;) {
+ c = *src;
+ src++;
+
+ if (dest == end) {
+ parsePtr->next = dest;
+ (*parsePtr->expandProc) (parsePtr, 20);
+ dest = parsePtr->next;
+ end = parsePtr->end;
+ }
+ *dest = c;
+ dest++;
+
+ if (CHAR_TYPE(src - 1, lastChar) == TCL_NORMAL) {
+ continue;
+ } else if (c == '{') {
+ level++;
+ } else if (c == '}') {
+ level--;
+ if (level == 0) {
+ dest--; /* Don't copy the last close brace. */
+ break;
+ }
+ } else if (c == '\\') {
+ int count;
+
+ /*
+ * Must always squish out backslash-newlines, even when in
+ * braces. This is needed so that this sequence can appear
+ * anywhere in a command, such as the middle of an expression.
+ */
+
+ if (*src == '\n') {
+ dest[-1] = Tcl_Backslash(src - 1, &count);
+ src += count - 1;
+ } else {
+ Tcl_Backslash(src - 1, &count);
+ while (count > 1) {
+ if (dest == end) {
+ parsePtr->next = dest;
+ (*parsePtr->expandProc) (parsePtr, 20);
+ dest = parsePtr->next;
+ end = parsePtr->end;
+ }
+ *dest = *src;
+ dest++;
+ src++;
+ count--;
+ }
+ }
+ } else if (c == '\0') {
+ Tcl_AppendResult(interp, "missing close-brace", (char *)NULL);
+ *termPtr = string - 1;
+ return TCL_ERROR;
+ }
+ }
+
+ *dest = '\0';
+ parsePtr->next = dest;
+ *termPtr = src;
+ return TCL_OK;
+}
+
+void Blt::ExpandParseValue(ParseValue *parsePtr, int needed)
+
+{
+ /*
+ * Either double the size of the buffer or add enough new space
+ * to meet the demand, whichever produces a larger new buffer.
+ */
+ int size = (parsePtr->end - parsePtr->buffer) + 1;
+ if (size < needed)
+ size += needed;
+ else
+ size += size;
+
+ char* buffer = (char*)malloc((unsigned int)size);
+
+ /*
+ * Copy from old buffer to new, free old buffer if needed, and
+ * mark new buffer as malloc-ed.
+ */
+ memcpy((VOID *) buffer, (VOID *) parsePtr->buffer,
+ (size_t) (parsePtr->next - parsePtr->buffer));
+ parsePtr->next = buffer + (parsePtr->next - parsePtr->buffer);
+ if (parsePtr->clientData != 0) {
+ free(parsePtr->buffer);
+ }
+ parsePtr->buffer = buffer;
+ parsePtr->end = buffer + size - 1;
+ parsePtr->clientData = (ClientData)1;
+}
+
+int Blt::ParseQuotes(Tcl_Interp* interp, const char *string, int termChar,
+ int flags, const char **termPtr, ParseValue *parsePtr)
+{
+ const char *src;
+ char *dest, c;
+ const char *lastChar = string + strlen(string);
+
+ src = string;
+ dest = parsePtr->next;
+
+ for (;;) {
+ if (dest == parsePtr->end) {
+ /*
+ * Target buffer space is about to run out. Make more space.
+ */
+ parsePtr->next = dest;
+ (*parsePtr->expandProc) (parsePtr, 1);
+ dest = parsePtr->next;
+ }
+ c = *src;
+ src++;
+ if (c == termChar) {
+ *dest = '\0';
+ parsePtr->next = dest;
+ *termPtr = src;
+ return TCL_OK;
+ } else if (CHAR_TYPE(src - 1, lastChar) == TCL_NORMAL) {
+ copy:
+ *dest = c;
+ dest++;
+ continue;
+ } else if (c == '$') {
+ int length;
+ const char *value;
+
+ value = Tcl_ParseVar(interp, src - 1, termPtr);
+ if (value == NULL) {
+ return TCL_ERROR;
+ }
+ src = *termPtr;
+ length = strlen(value);
+ if ((parsePtr->end - dest) <= length) {
+ parsePtr->next = dest;
+ (*parsePtr->expandProc) (parsePtr, length);
+ dest = parsePtr->next;
+ }
+ strcpy(dest, value);
+ dest += length;
+ continue;
+ } else if (c == '[') {
+ int result;
+
+ parsePtr->next = dest;
+ result = ParseNestedCmd(interp, src, flags, termPtr, parsePtr);
+ if (result != TCL_OK) {
+ return result;
+ }
+ src = *termPtr;
+ dest = parsePtr->next;
+ continue;
+ } else if (c == '\\') {
+ int nRead;
+
+ src--;
+ *dest = Tcl_Backslash(src, &nRead);
+ dest++;
+ src += nRead;
+ continue;
+ } else if (c == '\0') {
+ Tcl_ResetResult(interp);
+ ostringstream str;
+ str << "missing " << termChar << ends;
+ Tcl_SetStringObj(Tcl_GetObjResult(interp), str.str().c_str(), 9);
+ *termPtr = string - 1;
+ return TCL_ERROR;
+ } else {
+ goto copy;
+ }
+ }
+}
+
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