tohtmlstream.java
来自「Mobile 应用程序使用 Java Micro Edition (Java M」· Java 代码 · 共 1,824 行 · 第 1/5 页
JAVA
1,824 行
} } flushWriter(); if (m_tracer != null) super.fireEndDoc(); } /** * Receive notification of the beginning of an element. * * * @param namespaceURI * @param localName * @param name The element type name. * @param atts The attributes attached to the element, if any. * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * @see #endElement * @see org.xml.sax.AttributeList */ public void startElement( String namespaceURI, String localName, String name, Attributes atts) throws org.xml.sax.SAXException { ElemContext elemContext = m_elemContext; // clean up any pending things first if (elemContext.m_startTagOpen) { closeStartTag(); elemContext.m_startTagOpen = false; } else if (m_cdataTagOpen) { closeCDATA(); m_cdataTagOpen = false; } else if (m_needToCallStartDocument) { startDocumentInternal(); m_needToCallStartDocument = false; } // if this element has a namespace then treat it like XML if (null != namespaceURI && namespaceURI.length() > 0) { super.startElement(namespaceURI, localName, name, atts); return; } try { // getElemDesc2(name) is faster than getElemDesc(name) ElemDesc elemDesc = getElemDesc2(name); int elemFlags = elemDesc.getFlags(); // deal with indentation issues first if (m_doIndent) { boolean isBlockElement = (elemFlags & ElemDesc.BLOCK) != 0; if (m_ispreserve) m_ispreserve = false; else if ( (null != elemContext.m_elementName) && (!m_inBlockElem || isBlockElement) /* && !isWhiteSpaceSensitive */ ) { m_startNewLine = true; indent(); } m_inBlockElem = !isBlockElement; } // save any attributes for later processing if (atts != null) addAttributes(atts); m_isprevtext = false; final java.io.Writer writer = m_writer; writer.write('<'); writer.write(name); if (m_tracer != null) firePseudoAttributes(); if ((elemFlags & ElemDesc.EMPTY) != 0) { // an optimization for elements which are expected // to be empty. m_elemContext = elemContext.push(); /* XSLTC sometimes calls namespaceAfterStartElement() * so we need to remember the name */ m_elemContext.m_elementName = name; m_elemContext.m_elementDesc = elemDesc; return; } else { elemContext = elemContext.push(namespaceURI,localName,name); m_elemContext = elemContext; elemContext.m_elementDesc = elemDesc; elemContext.m_isRaw = (elemFlags & ElemDesc.RAW) != 0; } if ((elemFlags & ElemDesc.HEADELEM) != 0) { // This is the <HEAD> element, do some special processing closeStartTag(); elemContext.m_startTagOpen = false; if (!m_omitMetaTag) { if (m_doIndent) indent(); writer.write( "<META http-equiv=\"Content-Type\" content=\"text/html; charset="); String encoding = getEncoding(); String encode = Encodings.getMimeEncoding(encoding); writer.write(encode); writer.write("\">"); } } } catch (IOException e) { throw new SAXException(e); } } /** * Receive notification of the end of an element. * * * @param namespaceURI * @param localName * @param name The element type name * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. */ public final void endElement( final String namespaceURI, final String localName, final String name) throws org.xml.sax.SAXException { // deal with any pending issues if (m_cdataTagOpen) closeCDATA(); // if the element has a namespace, treat it like XML, not HTML if (null != namespaceURI && namespaceURI.length() > 0) { super.endElement(namespaceURI, localName, name); return; } try { ElemContext elemContext = m_elemContext; final ElemDesc elemDesc = elemContext.m_elementDesc; final int elemFlags = elemDesc.getFlags(); final boolean elemEmpty = (elemFlags & ElemDesc.EMPTY) != 0; // deal with any indentation issues if (m_doIndent) { final boolean isBlockElement = (elemFlags&ElemDesc.BLOCK) != 0; boolean shouldIndent = false; if (m_ispreserve) { m_ispreserve = false; } else if (m_doIndent && (!m_inBlockElem || isBlockElement)) { m_startNewLine = true; shouldIndent = true; } if (!elemContext.m_startTagOpen && shouldIndent) indent(elemContext.m_currentElemDepth - 1); m_inBlockElem = !isBlockElement; } final java.io.Writer writer = m_writer; if (!elemContext.m_startTagOpen) { writer.write("</"); writer.write(name); writer.write('>'); } else { // the start-tag open when this method was called, // so we need to process it now. if (m_tracer != null) super.fireStartElem(name); // the starting tag was still open when we received this endElement() call // so we need to process any gathered attributes NOW, before they go away. int nAttrs = m_attributes.getLength(); if (nAttrs > 0) { processAttributes(m_writer, nAttrs); // clear attributes object for re-use with next element m_attributes.clear(); } if (!elemEmpty) { // As per Dave/Paul recommendation 12/06/2000 // if (shouldIndent) // writer.write('>'); // indent(m_currentIndent); writer.write("></"); writer.write(name); writer.write('>'); } else { writer.write('>'); } } // clean up because the element has ended if ((elemFlags & ElemDesc.WHITESPACESENSITIVE) != 0) m_ispreserve = true; m_isprevtext = false; // fire off the end element event if (m_tracer != null) super.fireEndElem(name); // OPTIMIZE-EMPTY if (elemEmpty) { // a quick exit if the HTML element had no children. // This block of code can be removed if the corresponding block of code // in startElement() also labeled with "OPTIMIZE-EMPTY" is also removed m_elemContext = elemContext.m_prev; return; } // some more clean because the element has ended. if (!elemContext.m_startTagOpen) { if (m_doIndent && !m_preserves.isEmpty()) m_preserves.pop(); } m_elemContext = elemContext.m_prev;// m_isRawStack.pop(); } catch (IOException e) { throw new SAXException(e); } } /** * Process an attribute. * @param writer The writer to write the processed output to. * @param name The name of the attribute. * @param value The value of the attribute. * @param elemDesc The description of the HTML element * that has this attribute. * * @throws org.xml.sax.SAXException */ protected void processAttribute( java.io.Writer writer, String name, String value, ElemDesc elemDesc) throws IOException { writer.write(' '); if ( ((value.length() == 0) || value.equalsIgnoreCase(name)) && elemDesc != null && elemDesc.isAttrFlagSet(name, ElemDesc.ATTREMPTY)) { writer.write(name); } else { // %REVIEW% %OPT% // Two calls to single-char write may NOT // be more efficient than one to string-write... writer.write(name); writer.write("=\""); if ( elemDesc != null && elemDesc.isAttrFlagSet(name, ElemDesc.ATTRURL)) writeAttrURI(writer, value, m_specialEscapeURLs); else writeAttrString(writer, value, this.getEncoding()); writer.write('"'); } } /** * Tell if a character is an ASCII digit. */ private boolean isASCIIDigit(char c) { return (c >= '0' && c <= '9'); } /** * Make an integer into an HH hex value. * Does no checking on the size of the input, since this * is only meant to be used locally by writeAttrURI. * * @param i must be a value less than 255. * * @return should be a two character string. */ private static String makeHHString(int i) { String s = Integer.toHexString(i).toUpperCase(); if (s.length() == 1) { s = "0" + s; } return s; } /** * Dmitri Ilyin: Makes sure if the String is HH encoded sign. * @param str must be 2 characters long * * @return true or false */ private boolean isHHSign(String str) { boolean sign = true; try { char r = (char) Integer.parseInt(str, 16); } catch (NumberFormatException e) { sign = false; } return sign; } /** * Write the specified <var>string</var> after substituting non ASCII characters,⌨️ 快捷键说明
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