diff options
| -rw-r--r-- | src/corelib/tools/qchar.cpp | 9 | ||||
| -rw-r--r-- | tests/auto/corelib/tools/qchar/tst_qchar.cpp | 14 |
2 files changed, 18 insertions, 5 deletions
diff --git a/src/corelib/tools/qchar.cpp b/src/corelib/tools/qchar.cpp index 8545276dac..9ab7155c2d 100644 --- a/src/corelib/tools/qchar.cpp +++ b/src/corelib/tools/qchar.cpp @@ -1739,10 +1739,10 @@ static void composeHelper(QString *str, QChar::UnicodeVersion version, int from) if (from < 0 || s.length() - from < 2) return; - int starter = 0; // starter position uint stcode = 0; // starter code point - int next = -1; - int lastCombining = 0; + int starter = -1; // starter position + int next = -1; // to prevent i == next + int lastCombining = 255; // to prevent combining > lastCombining int pos = from; while (pos < s.length()) { @@ -1766,8 +1766,7 @@ static void composeHelper(QString *str, QChar::UnicodeVersion version, int from) } int combining = p->combiningClass; - if (i == next || combining > lastCombining) { - Q_ASSERT(starter >= from); + if ((i == next || combining > lastCombining) && starter >= from) { // allowed to form ligature with S uint ligature = ligatureHelper(stcode, uc); if (ligature) { diff --git a/tests/auto/corelib/tools/qchar/tst_qchar.cpp b/tests/auto/corelib/tools/qchar/tst_qchar.cpp index c89d553112..2ec85882b8 100644 --- a/tests/auto/corelib/tools/qchar/tst_qchar.cpp +++ b/tests/auto/corelib/tools/qchar/tst_qchar.cpp @@ -909,6 +909,20 @@ void tst_QChar::normalization_manual() QVERIFY(composed.normalized(QString::NormalizationForm_KD) == decomposed); QVERIFY(composed.normalized(QString::NormalizationForm_KC) == decomposed); } + { + QString composed; + composed += QChar(0x0061); + composed += QChar(0x00f2); + QString decomposed; + decomposed += QChar(0x0061); + decomposed += QChar(0x006f); + decomposed += QChar(0x0300); + + QVERIFY(decomposed.normalized(QString::NormalizationForm_D) == decomposed); + QVERIFY(decomposed.normalized(QString::NormalizationForm_C) == composed); + QVERIFY(decomposed.normalized(QString::NormalizationForm_KD) == decomposed); + QVERIFY(decomposed.normalized(QString::NormalizationForm_KC) == composed); + } { // hangul QString composed; composed += QChar(0xc154); |