+/*
+ * Copyright (C) 2008 Jürg Billeter <j@bitron.ch>
+ * Copyright (C) 2008 Dominik Röttsches <dominik.roettsches@access-company.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "UnicodeGLib.h"
+
+namespace WTF {
+namespace Unicode {
+
+UChar32 foldCase(UChar32 ch)
+{
+ GOwnPtr<GError> gerror;
+
+ GOwnPtr<char> utf8char;
+ utf8char.set(g_ucs4_to_utf8(reinterpret_cast<gunichar*>(&ch), 1, 0, 0, &gerror.outPtr()));
+ if (gerror)
+ return ch;
+
+ GOwnPtr<char> utf8caseFolded;
+ utf8caseFolded.set(g_utf8_casefold(utf8char.get(), -1));
+
+ GOwnPtr<gunichar> ucs4Result;
+ ucs4Result.set(g_utf8_to_ucs4_fast(utf8caseFolded.get(), -1, 0));
+
+ return *ucs4Result;
+}
+
+int foldCase(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
+{
+ *error = false;
+ GOwnPtr<GError> gerror;
+
+ GOwnPtr<char> utf8src;
+ utf8src.set(g_utf16_to_utf8(src, srcLength, 0, 0, &gerror.outPtr()));
+ if (gerror) {
+ *error = true;
+ return -1;
+ }
+
+ GOwnPtr<char> utf8result;
+ utf8result.set(g_utf8_casefold(utf8src.get(), -1));
+
+ long utf16resultLength = -1;
+ GOwnPtr<UChar> utf16result;
+ utf16result.set(g_utf8_to_utf16(utf8result.get(), -1, 0, &utf16resultLength, &gerror.outPtr()));
+ if (gerror) {
+ *error = true;
+ return -1;
+ }
+
+ if (utf16resultLength > resultLength) {
+ *error = true;
+ return utf16resultLength;
+ }
+ memcpy(result, utf16result.get(), utf16resultLength * sizeof(UChar));
+
+ return utf16resultLength;
+}
+
+int toLower(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
+{
+ *error = false;
+ GOwnPtr<GError> gerror;
+
+ GOwnPtr<char> utf8src;
+ utf8src.set(g_utf16_to_utf8(src, srcLength, 0, 0, &gerror.outPtr()));
+ if (gerror) {
+ *error = true;
+ return -1;
+ }
+
+ GOwnPtr<char> utf8result;
+ utf8result.set(g_utf8_strdown(utf8src.get(), -1));
+
+ long utf16resultLength = -1;
+ GOwnPtr<UChar> utf16result;
+ utf16result.set(g_utf8_to_utf16(utf8result.get(), -1, 0, &utf16resultLength, &gerror.outPtr()));
+ if (gerror) {
+ *error = true;
+ return -1;
+ }
+
+ if (utf16resultLength > resultLength) {
+ *error = true;
+ return utf16resultLength;
+ }
+ memcpy(result, utf16result.get(), utf16resultLength * sizeof(UChar));
+
+ return utf16resultLength;
+}
+
+int toUpper(UChar* result, int resultLength, const UChar* src, int srcLength, bool* error)
+{
+ *error = false;
+ GOwnPtr<GError> gerror;
+
+ GOwnPtr<char> utf8src;
+ utf8src.set(g_utf16_to_utf8(src, srcLength, 0, 0, &gerror.outPtr()));
+ if (gerror) {
+ *error = true;
+ return -1;
+ }
+
+ GOwnPtr<char> utf8result;
+ utf8result.set(g_utf8_strup(utf8src.get(), -1));
+
+ long utf16resultLength = -1;
+ GOwnPtr<UChar> utf16result;
+ utf16result.set(g_utf8_to_utf16(utf8result.get(), -1, 0, &utf16resultLength, &gerror.outPtr()));
+ if (gerror) {
+ *error = true;
+ return -1;
+ }
+
+ if (utf16resultLength > resultLength) {
+ *error = true;
+ return utf16resultLength;
+ }
+ memcpy(result, utf16result.get(), utf16resultLength * sizeof(UChar));
+
+ return utf16resultLength;
+}
+
+Direction direction(UChar32 c)
+{
+ PangoBidiType type = pango_bidi_type_for_unichar(c);
+ switch (type) {
+ case PANGO_BIDI_TYPE_L:
+ return LeftToRight;
+ case PANGO_BIDI_TYPE_R:
+ return RightToLeft;
+ case PANGO_BIDI_TYPE_AL:
+ return RightToLeftArabic;
+ case PANGO_BIDI_TYPE_LRE:
+ return LeftToRightEmbedding;
+ case PANGO_BIDI_TYPE_RLE:
+ return RightToLeftEmbedding;
+ case PANGO_BIDI_TYPE_LRO:
+ return LeftToRightOverride;
+ case PANGO_BIDI_TYPE_RLO:
+ return RightToLeftOverride;
+ case PANGO_BIDI_TYPE_PDF:
+ return PopDirectionalFormat;
+ case PANGO_BIDI_TYPE_EN:
+ return EuropeanNumber;
+ case PANGO_BIDI_TYPE_AN:
+ return ArabicNumber;
+ case PANGO_BIDI_TYPE_ES:
+ return EuropeanNumberSeparator;
+ case PANGO_BIDI_TYPE_ET:
+ return EuropeanNumberTerminator;
+ case PANGO_BIDI_TYPE_CS:
+ return CommonNumberSeparator;
+ case PANGO_BIDI_TYPE_NSM:
+ return NonSpacingMark;
+ case PANGO_BIDI_TYPE_BN:
+ return BoundaryNeutral;
+ case PANGO_BIDI_TYPE_B:
+ return BlockSeparator;
+ case PANGO_BIDI_TYPE_S:
+ return SegmentSeparator;
+ case PANGO_BIDI_TYPE_WS:
+ return WhiteSpaceNeutral;
+ default:
+ return OtherNeutral;
+ }
+}
+
+int umemcasecmp(const UChar* a, const UChar* b, int len)
+{
+ GOwnPtr<char> utf8a;
+ GOwnPtr<char> utf8b;
+
+ utf8a.set(g_utf16_to_utf8(a, len, 0, 0, 0));
+ utf8b.set(g_utf16_to_utf8(b, len, 0, 0, 0));
+
+ GOwnPtr<char> foldedA;
+ GOwnPtr<char> foldedB;
+
+ foldedA.set(g_utf8_casefold(utf8a.get(), -1));
+ foldedB.set(g_utf8_casefold(utf8b.get(), -1));
+
+ // FIXME: umemcasecmp needs to mimic u_memcasecmp of icu
+ // from the ICU docs:
+ // "Compare two strings case-insensitively using full case folding.
+ // his is equivalent to u_strcmp(u_strFoldCase(s1, n, options), u_strFoldCase(s2, n, options))."
+ //
+ // So it looks like we don't need the full g_utf8_collate here,
+ // but really a bitwise comparison of casefolded unicode chars (not utf-8 bytes).
+ // As there is no direct equivalent to this icu function in GLib, for now
+ // we'll use g_utf8_collate():
+
+ return g_utf8_collate(foldedA.get(), foldedB.get());
+}
+
+}
+}
projects / apple / javascriptcore.git / blobdiff