зеркало из https://github.com/mozilla/gecko-dev.git
r=ftang; rewrite to fix 16656, parts of 7455
This commit is contained in:
kipp%netscape.com
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19fd466554
Коммит
effbb5992f
Разница между файлами не показана из-за своего большого размера
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@ -30,6 +30,28 @@ class nsIWordBreaker;
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#define NS_TEXT_TRANSFORMER_AUTO_WORD_BUF_SIZE 100
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// A growable text buffer that tries to avoid using malloc by having a
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// builtin buffer. Ideally used as an automatic variable.
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class nsAutoTextBuffer {
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public:
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nsAutoTextBuffer();
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~nsAutoTextBuffer();
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nsresult GrowBy(PRInt32 aAtLeast, PRBool aCopyToHead = PR_TRUE);
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nsresult GrowTo(PRInt32 aNewSize, PRBool aCopyToHead = PR_TRUE);
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PRUnichar* GetBuffer() { return mBuffer; }
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PRUnichar* GetBufferEnd() { return mBuffer + mBufferLen; }
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PRInt32 GetBufferLength() const { return mBufferLen; }
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PRUnichar* mBuffer;
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PRInt32 mBufferLen;
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PRUnichar mAutoBuffer[NS_TEXT_TRANSFORMER_AUTO_WORD_BUF_SIZE];
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};
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//----------------------------------------
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/**
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* This object manages the transformation of text:
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*
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@ -65,53 +87,90 @@ public:
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PRInt32 aStartingOffset);
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PRInt32 GetContentLength() const {
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return mContentLength;
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return mFrag ? mFrag->GetLength() : 0;
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}
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PRUnichar* GetNextWord(PRBool aInWord,
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PRInt32& aWordLenResult,
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PRInt32& aContentLenResult,
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PRBool& aIsWhitespaceResult,
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PRInt32* aWordLenResult,
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PRInt32* aContentLenResult,
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PRBool* aIsWhitespaceResult,
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PRBool aForLineBreak = PR_TRUE);
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PRUnichar* GetPrevWord(PRBool aInWord,
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PRInt32& aWordLenResult,
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PRInt32& aContentLenResult,
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PRBool& aIsWhitespaceResult,
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PRInt32* aWordLenResult,
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PRInt32* aContentLenResult,
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PRBool* aIsWhitespaceResult,
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PRBool aForLineBreak = PR_TRUE);
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PRBool HasMultibyte() const {
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return mHasMultibyte;
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}
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PRUnichar* GetWordBuffer() {
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return mBuffer;
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return mTransformBuf.GetBuffer();
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}
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PRInt32 GetWordBufferLength() const {
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return mBufferLength;
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return mTransformBuf.GetBufferLength();
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}
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protected:
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PRBool GrowBuffer(PRBool aForNextWord = PR_TRUE);
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static nsresult Initialize();
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PRUnichar* mBuffer;
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PRInt32 mBufferLength;
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static void Shutdown();
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protected:
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// Helper methods for GetNextWord (F == forwards)
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PRInt32 ScanNormalWhiteSpace_F();
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PRInt32 ScanNormalAsciiText_F(PRInt32* aWordLen);
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PRInt32 ScanNormalUnicodeText_F(PRBool aForLineBreak, PRInt32* aWordLen);
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PRInt32 ScanPreWrapWhiteSpace_F(PRInt32* aWordLen);
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PRInt32 ScanPreAsciiData_F(PRInt32* aWordLen);
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PRInt32 ScanPreData_F(PRInt32* aWordLen);
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// Helper methods for GetPrevWord (B == backwards)
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PRInt32 ScanNormalWhiteSpace_B();
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PRInt32 ScanNormalAsciiText_B(PRInt32* aWordLen);
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PRInt32 ScanNormalUnicodeText_B(PRBool aForLineBreak, PRInt32* aWordLen);
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PRInt32 ScanPreWrapWhiteSpace_B(PRInt32* aWordLen);
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PRInt32 ScanPreData_B(PRInt32* aWordLen);
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// Set to true if at any point during GetNextWord or GetPrevWord we
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// run across a multibyte (> 127) unicode character.
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PRBool mHasMultibyte;
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PRInt32 mContentLength;
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PRInt32 mStartingOffset;
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// The text fragment that we are looking at
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const nsTextFragment* mFrag;
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// Our current offset into the text fragment
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PRInt32 mOffset;
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const nsTextFragment* mFrag;
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PRInt32 mCurrentFragOffset;
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// The frame's text-transform state
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PRUint8 mTextTransform;
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PRUint8 mPreformatted;
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nsILineBreaker* mLineBreaker; // does NOT hold reference
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nsIWordBreaker* mWordBreaker; // does NOT hold reference
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// The frame's white-space mode we are using to process text
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enum {
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eNormal,
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ePreformatted,
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ePreWrap
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} mMode;
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PRUnichar mAutoWordBuffer[NS_TEXT_TRANSFORMER_AUTO_WORD_BUF_SIZE];
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nsILineBreaker* mLineBreaker; // [WEAK]
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nsIWordBreaker* mWordBreaker; // [WEAK]
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// Buffer used to hold the transformed words from GetNextWord or
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// GetPrevWord
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nsAutoTextBuffer mTransformBuf;
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#ifdef DEBUG
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static void SelfTest(nsILineBreaker* aLineBreaker,
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nsIWordBreaker* aWordBreaker);
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nsresult Init2(const nsTextFragment* aFrag,
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PRInt32 aStartingOffset,
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PRUint8 aWhiteSpace,
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PRUint8 aTextTransform);
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#endif
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};
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#endif /* nsTextTransformer_h___ */
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Разница между файлами не показана из-за своего большого размера
Загрузить разницу
|
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@ -30,6 +30,28 @@ class nsIWordBreaker;
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#define NS_TEXT_TRANSFORMER_AUTO_WORD_BUF_SIZE 100
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// A growable text buffer that tries to avoid using malloc by having a
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// builtin buffer. Ideally used as an automatic variable.
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class nsAutoTextBuffer {
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public:
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nsAutoTextBuffer();
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~nsAutoTextBuffer();
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nsresult GrowBy(PRInt32 aAtLeast, PRBool aCopyToHead = PR_TRUE);
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nsresult GrowTo(PRInt32 aNewSize, PRBool aCopyToHead = PR_TRUE);
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PRUnichar* GetBuffer() { return mBuffer; }
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PRUnichar* GetBufferEnd() { return mBuffer + mBufferLen; }
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PRInt32 GetBufferLength() const { return mBufferLen; }
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PRUnichar* mBuffer;
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PRInt32 mBufferLen;
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PRUnichar mAutoBuffer[NS_TEXT_TRANSFORMER_AUTO_WORD_BUF_SIZE];
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};
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//----------------------------------------
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/**
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* This object manages the transformation of text:
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*
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@ -65,53 +87,90 @@ public:
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PRInt32 aStartingOffset);
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PRInt32 GetContentLength() const {
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return mContentLength;
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return mFrag ? mFrag->GetLength() : 0;
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}
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PRUnichar* GetNextWord(PRBool aInWord,
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PRInt32& aWordLenResult,
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PRInt32& aContentLenResult,
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PRBool& aIsWhitespaceResult,
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PRInt32* aWordLenResult,
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PRInt32* aContentLenResult,
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PRBool* aIsWhitespaceResult,
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PRBool aForLineBreak = PR_TRUE);
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PRUnichar* GetPrevWord(PRBool aInWord,
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PRInt32& aWordLenResult,
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PRInt32& aContentLenResult,
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PRBool& aIsWhitespaceResult,
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PRInt32* aWordLenResult,
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PRInt32* aContentLenResult,
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PRBool* aIsWhitespaceResult,
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PRBool aForLineBreak = PR_TRUE);
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PRBool HasMultibyte() const {
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return mHasMultibyte;
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}
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PRUnichar* GetWordBuffer() {
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return mBuffer;
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return mTransformBuf.GetBuffer();
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}
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PRInt32 GetWordBufferLength() const {
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return mBufferLength;
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return mTransformBuf.GetBufferLength();
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}
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protected:
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PRBool GrowBuffer(PRBool aForNextWord = PR_TRUE);
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static nsresult Initialize();
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PRUnichar* mBuffer;
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PRInt32 mBufferLength;
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static void Shutdown();
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protected:
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// Helper methods for GetNextWord (F == forwards)
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PRInt32 ScanNormalWhiteSpace_F();
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PRInt32 ScanNormalAsciiText_F(PRInt32* aWordLen);
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PRInt32 ScanNormalUnicodeText_F(PRBool aForLineBreak, PRInt32* aWordLen);
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PRInt32 ScanPreWrapWhiteSpace_F(PRInt32* aWordLen);
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PRInt32 ScanPreAsciiData_F(PRInt32* aWordLen);
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PRInt32 ScanPreData_F(PRInt32* aWordLen);
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// Helper methods for GetPrevWord (B == backwards)
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PRInt32 ScanNormalWhiteSpace_B();
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PRInt32 ScanNormalAsciiText_B(PRInt32* aWordLen);
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PRInt32 ScanNormalUnicodeText_B(PRBool aForLineBreak, PRInt32* aWordLen);
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PRInt32 ScanPreWrapWhiteSpace_B(PRInt32* aWordLen);
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PRInt32 ScanPreData_B(PRInt32* aWordLen);
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// Set to true if at any point during GetNextWord or GetPrevWord we
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// run across a multibyte (> 127) unicode character.
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PRBool mHasMultibyte;
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PRInt32 mContentLength;
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PRInt32 mStartingOffset;
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// The text fragment that we are looking at
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const nsTextFragment* mFrag;
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// Our current offset into the text fragment
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PRInt32 mOffset;
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const nsTextFragment* mFrag;
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PRInt32 mCurrentFragOffset;
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// The frame's text-transform state
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PRUint8 mTextTransform;
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PRUint8 mPreformatted;
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nsILineBreaker* mLineBreaker; // does NOT hold reference
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nsIWordBreaker* mWordBreaker; // does NOT hold reference
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// The frame's white-space mode we are using to process text
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enum {
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eNormal,
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ePreformatted,
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ePreWrap
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} mMode;
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PRUnichar mAutoWordBuffer[NS_TEXT_TRANSFORMER_AUTO_WORD_BUF_SIZE];
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nsILineBreaker* mLineBreaker; // [WEAK]
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nsIWordBreaker* mWordBreaker; // [WEAK]
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// Buffer used to hold the transformed words from GetNextWord or
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// GetPrevWord
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nsAutoTextBuffer mTransformBuf;
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#ifdef DEBUG
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static void SelfTest(nsILineBreaker* aLineBreaker,
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nsIWordBreaker* aWordBreaker);
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nsresult Init2(const nsTextFragment* aFrag,
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PRInt32 aStartingOffset,
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PRUint8 aWhiteSpace,
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PRUint8 aTextTransform);
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#endif
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};
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#endif /* nsTextTransformer_h___ */
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