diff options
Diffstat (limited to 'generic/tcl.h')
| -rw-r--r-- | generic/tcl.h | 23 |
1 files changed, 20 insertions, 3 deletions
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 |