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authorhobbs <hobbs>2003-07-16 22:03:51 (GMT)
committerhobbs <hobbs>2003-07-16 22:03:51 (GMT)
commit379bdae5c3feed0328500dd805b3e51c06d0383f (patch)
tree0345d742b6688dea4e5f032e9c7192a5dfdce4c4 /generic
parentb37075f5ec3bb37ef448c26ac7be3f1ff4eb15ca (diff)
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* generic/tcl.h: add recognition of -DTCL_UTF_MAX=6 on the
* generic/regcustom.h: make line to support UCS-4 mode. No config arg at this time, as it is not the recommended build mode.
Diffstat (limited to 'generic')
-rw-r--r--generic/regcustom.h6
-rw-r--r--generic/tcl.h23
2 files changed, 26 insertions, 3 deletions
diff --git a/generic/regcustom.h b/generic/regcustom.h
index 9f505de..e258acd 100644
--- a/generic/regcustom.h
+++ b/generic/regcustom.h
@@ -91,9 +91,15 @@ typedef int celt; /* type to hold chr, MCCE number, or NOCELT */
#define NOCELT (-1) /* celt value which is not valid chr or MCCE */
#define CHR(c) (UCHAR(c)) /* turn char literal into chr literal */
#define DIGITVAL(c) ((c)-'0') /* turn chr digit into its value */
+#if TCL_UTF_MAX > 3
+#define CHRBITS 32 /* bits in a chr; must not use sizeof */
+#define CHR_MIN 0x00000000 /* smallest and largest chr; the value */
+#define CHR_MAX 0xffffffff /* CHR_MAX-CHR_MIN+1 should fit in uchr */
+#else
#define CHRBITS 16 /* bits in a chr; must not use sizeof */
#define CHR_MIN 0x0000 /* smallest and largest chr; the value */
#define CHR_MAX 0xffff /* CHR_MAX-CHR_MIN+1 should fit in uchr */
+#endif
/* functions operating on chr */
#define iscalnum(x) Tcl_UniCharIsAlnum(x)
diff --git a/generic/tcl.h b/generic/tcl.h
index 6c87307..8a62eae 100644
--- a/generic/tcl.h
+++ b/generic/tcl.h
@@ -13,7 +13,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tcl.h,v 1.158 2003/06/09 22:48:32 andreas_kupries Exp $
+ * RCS: @(#) $Id: tcl.h,v 1.159 2003/07/16 22:03:52 hobbs Exp $
*/
#ifndef _TCL
@@ -2186,15 +2186,32 @@ typedef struct Tcl_Parse {
/*
* The maximum number of bytes that are necessary to represent a single
- * Unicode character in UTF-8.
- */
+ * Unicode character in UTF-8. The valid values should be 3 or 6 (or
+ * perhaps 1 if we want to support a non-unicode enabled core).
+ * If 3, then Tcl_UniChar must be 2-bytes in size (UCS-2). (default)
+ * If 6, then Tcl_UniChar must be 4-bytes in size (UCS-4).
+ * At this time UCS-2 mode is the default and recommended mode.
+ * UCS-4 is experimental and not recommended. It works for the core,
+ * but most extensions expect UCS-2.
+ */
+#ifndef TCL_UTF_MAX
#define TCL_UTF_MAX 3
+#endif
/*
* This represents a Unicode character. Any changes to this should
* also be reflected in regcustom.h.
*/
+#if TCL_UTF_MAX > 3
+ /*
+ * unsigned int isn't 100% accurate as it should be a strict 4-byte
+ * value (perhaps wchar_t). 64-bit systems may have troubles. The
+ * size of this value must be reflected correctly in regcustom.h.
+ */
+typedef unsigned int Tcl_UniChar;
+#else
typedef unsigned short Tcl_UniChar;
+#endif
/* TIP #59: The following structure is used in calls
* 'Tcl_RegisterConfig' to provide the system with the embedded