diff options
Diffstat (limited to 'generic/tclUtf.c')
| -rw-r--r-- | generic/tclUtf.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/generic/tclUtf.c b/generic/tclUtf.c index 3de767d..ac76309 100644 --- a/generic/tclUtf.c +++ b/generic/tclUtf.c @@ -2628,6 +2628,20 @@ TclUtfToUCS4( /* Make use of the #undef Tcl_UtfToUniChar above, which already handles UCS4. */ return Tcl_UtfToUniChar(src, ucs4Ptr); } + +int +TclUniCharToUCS4( + const Tcl_UniChar *src, /* The Tcl_UniChar string. */ + int *ucs4Ptr) /* Filled with the UCS4 codepoint represented + * by the Tcl_UniChar string. */ +{ + if (((src[0] & 0xFC00) == 0xD800) && ((src[1] & 0xFC00) == 0xDC00)) { + *ucs4Ptr = (((src[0] & 0x3FF) << 10) | (src[01] & 0x3FF)) + 0x10000; + return 2; + } + *ucs4Ptr = src[0]; + return 1; +} #endif /* |