diff options
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tclStubInit.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/generic/tclStubInit.c b/generic/tclStubInit.c index cbf4084..f7b374c 100644 --- a/generic/tclStubInit.c +++ b/generic/tclStubInit.c @@ -188,11 +188,68 @@ Tcl_WinUtfToTChar( int len, Tcl_DString *dsPtr) { +#if TCL_UTF_MAX > 4 + Tcl_UniChar ch = 0; + wchar_t *w, *wString; + const char *p, *end; + int oldLength; +#endif + Tcl_DStringInit(dsPtr); if (!string) { return NULL; } +#if TCL_UTF_MAX > 4 + + if (len < 0) { + len = strlen(string); + } + + /* + * Unicode string length in Tcl_UniChars will be <= UTF-8 string length in + * bytes. + */ + + oldLength = Tcl_DStringLength(dsPtr); + + Tcl_DStringSetLength(dsPtr, + oldLength + (int) ((len + 1) * sizeof(wchar_t))); + wString = (wchar_t *) (Tcl_DStringValue(dsPtr) + oldLength); + + w = wString; + p = string; + end = string + len - 4; + while (p < end) { + p += TclUtfToUniChar(p, &ch); + if (ch > 0xFFFF) { + *w++ = (wchar_t) (0xD800 + ((ch -= 0x10000) >> 10)); + *w++ = (wchar_t) (0xDC00 | (ch & 0x3FF)); + } else { + *w++ = ch; + } + } + end += 4; + while (p < end) { + if (Tcl_UtfCharComplete(p, end-p)) { + p += TclUtfToUniChar(p, &ch); + } else { + ch = UCHAR(*p++); + } + if (ch > 0xFFFF) { + *w++ = (wchar_t) (0xD800 + ((ch -= 0x10000) >> 10)); + *w++ = (wchar_t) (0xDC00 | (ch & 0x3FF)); + } else { + *w++ = ch; + } + } + *w = '\0'; + Tcl_DStringSetLength(dsPtr, + oldLength + ((char *) w - (char *) wString)); + + return (char *)wString; +#else return (char *)Tcl_UtfToUniCharDString(string, len, dsPtr); +#endif } char * @@ -201,6 +258,12 @@ Tcl_WinTCharToUtf( int len, Tcl_DString *dsPtr) { +#if TCL_UTF_MAX > 4 + const wchar_t *w, *wEnd; + char *p, *result; + int oldLength, blen = 1; +#endif + Tcl_DStringInit(dsPtr); if (!string) { return NULL; @@ -210,7 +273,32 @@ Tcl_WinTCharToUtf( } else { len /= 2; } +#if TCL_UTF_MAX > 4 + oldLength = Tcl_DStringLength(dsPtr); + Tcl_DStringSetLength(dsPtr, oldLength + (len + 1) * 4); + result = Tcl_DStringValue(dsPtr) + oldLength; + + p = result; + wEnd = (wchar_t *)string + len; + for (w = (wchar_t *)string; w < wEnd; ) { + if (!blen && ((*w & 0xFC00) != 0xDC00)) { + /* Special case for handling upper surrogates. */ + p += Tcl_UniCharToUtf(-1, p); + } + blen = Tcl_UniCharToUtf(*w, p); + p += blen; + w++; + } + if (!blen) { + /* Special case for handling upper surrogates. */ + p += Tcl_UniCharToUtf(-1, p); + } + Tcl_DStringSetLength(dsPtr, oldLength + (p - result)); + + return result; +#else return Tcl_UniCharToUtfDString((Tcl_UniChar *)string, len, dsPtr); +#endif } #if defined(TCL_WIDE_INT_IS_LONG) |