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Diffstat (limited to 'src/com/sun/org/apache/xalan/internal/xsltc/compiler/Text.java')
-rw-r--r--src/com/sun/org/apache/xalan/internal/xsltc/compiler/Text.java247
1 files changed, 0 insertions, 247 deletions
diff --git a/src/com/sun/org/apache/xalan/internal/xsltc/compiler/Text.java b/src/com/sun/org/apache/xalan/internal/xsltc/compiler/Text.java
deleted file mode 100644
index 3c62f2b..0000000
--- a/src/com/sun/org/apache/xalan/internal/xsltc/compiler/Text.java
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * reserved comment block
- * DO NOT REMOVE OR ALTER!
- */
-/*
- * Copyright 2001-2004 The Apache Software Foundation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- * $Id: Text.java,v 1.2.4.1 2005/09/12 11:33:09 pvedula Exp $
- */
-
-package com.sun.org.apache.xalan.internal.xsltc.compiler;
-
-import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
-import com.sun.org.apache.bcel.internal.generic.GETSTATIC;
-import com.sun.org.apache.bcel.internal.generic.INVOKEINTERFACE;
-import com.sun.org.apache.bcel.internal.generic.InstructionList;
-import com.sun.org.apache.bcel.internal.generic.PUSH;
-import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
-import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
-import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Util;
-
-/**
- * @author Jacek Ambroziak
- * @author Santiago Pericas-Geertsen
- * @author Morten Jorgensen
- */
-final class Text extends Instruction {
-
- private String _text;
- private boolean _escaping = true;
- private boolean _ignore = false;
- private boolean _textElement = false;
-
- /**
- * Create a blank Text syntax tree node.
- */
- public Text() {
- _textElement = true;
- }
-
- /**
- * Create text syntax tree node.
- * @param text is the text to put in the node.
- */
- public Text(String text) {
- _text = text;
- }
-
- /**
- * Returns the text wrapped inside this node
- * @return The text wrapped inside this node
- */
- protected String getText() {
- return _text;
- }
-
- /**
- * Set the text for this node. Appends the given text to any already
- * existing text (using string concatenation, so use only when needed).
- * @param text is the text to wrap inside this node.
- */
- protected void setText(String text) {
- if (_text == null)
- _text = text;
- else
- _text = _text + text;
- }
-
- public void display(int indent) {
- indent(indent);
- Util.println("Text");
- indent(indent + IndentIncrement);
- Util.println(_text);
- }
-
- public void parseContents(Parser parser) {
- final String str = getAttribute("disable-output-escaping");
- if ((str != null) && (str.equals("yes"))) _escaping = false;
-
- parseChildren(parser);
-
- if (_text == null) {
- if (_textElement) {
- _text = EMPTYSTRING;
- }
- else {
- _ignore = true;
- }
- }
- else if (_textElement) {
- if (_text.length() == 0) _ignore = true;
- }
- else if (getParent() instanceof LiteralElement) {
- LiteralElement element = (LiteralElement)getParent();
- String space = element.getAttribute("xml:space");
- if ((space == null) || (!space.equals("preserve")))
- {
- int i;
- final int textLength = _text.length();
- for (i = 0; i < textLength; i++) {
- char c = _text.charAt(i);
- if (!isWhitespace(c))
- break;
- }
- if (i == textLength)
- _ignore = true;
- }
- }
- else {
- int i;
- final int textLength = _text.length();
- for (i = 0; i < textLength; i++)
- {
- char c = _text.charAt(i);
- if (!isWhitespace(c))
- break;
- }
- if (i == textLength)
- _ignore = true;
- }
- }
-
- public void ignore() {
- _ignore = true;
- }
-
- public boolean isIgnore() {
- return _ignore;
- }
-
- public boolean isTextElement() {
- return _textElement;
- }
-
- protected boolean contextDependent() {
- return false;
- }
-
- private static boolean isWhitespace(char c)
- {
- return (c == 0x20 || c == 0x09 || c == 0x0A || c == 0x0D);
- }
-
- public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
- final ConstantPoolGen cpg = classGen.getConstantPool();
- final InstructionList il = methodGen.getInstructionList();
-
- if (!_ignore) {
- // Turn off character escaping if so is wanted.
- final int esc = cpg.addInterfaceMethodref(OUTPUT_HANDLER,
- "setEscaping", "(Z)Z");
- if (!_escaping) {
- il.append(methodGen.loadHandler());
- il.append(new PUSH(cpg, false));
- il.append(new INVOKEINTERFACE(esc, 2));
- }
-
- il.append(methodGen.loadHandler());
-
- // Call characters(String) or characters(char[],int,int), as
- // appropriate.
- if (!canLoadAsArrayOffsetLength()) {
- final int characters = cpg.addInterfaceMethodref(OUTPUT_HANDLER,
- "characters",
- "("+STRING_SIG+")V");
- il.append(new PUSH(cpg, _text));
- il.append(new INVOKEINTERFACE(characters, 2));
- } else {
- final int characters = cpg.addInterfaceMethodref(OUTPUT_HANDLER,
- "characters",
- "([CII)V");
- loadAsArrayOffsetLength(classGen, methodGen);
- il.append(new INVOKEINTERFACE(characters, 4));
- }
-
- // Restore character escaping setting to whatever it was.
- // Note: setEscaping(bool) returns the original (old) value
- if (!_escaping) {
- il.append(methodGen.loadHandler());
- il.append(SWAP);
- il.append(new INVOKEINTERFACE(esc, 2));
- il.append(POP);
- }
- }
- translateContents(classGen, methodGen);
- }
-
- /**
- * Check whether this Text node can be stored in a char[] in the translet.
- * Calling this is precondition to calling loadAsArrayOffsetLength.
- * @see #loadAsArrayOffsetLength(ClassGenerator,MethodGenerator)
- * @return true if this Text node can be
- */
- public boolean canLoadAsArrayOffsetLength() {
- // Magic number! 21845*3 == 65535. BCEL uses a DataOutputStream to
- // serialize class files. The Java run-time places a limit on the size
- // of String data written using a DataOutputStream - it cannot require
- // more than 64KB when represented as UTF-8. The number of bytes
- // required to represent a Java string as UTF-8 cannot be greater
- // than three times the number of char's in the string, hence the
- // check for 21845.
-
- return (_text.length() <= 21845);
- }
-
- /**
- * Generates code that loads the array that will contain the character
- * data represented by this Text node, followed by the offset of the
- * data from the start of the array, and then the length of the data.
- *
- * The pre-condition to calling this method is that
- * canLoadAsArrayOffsetLength() returns true.
- * @see #canLoadArrayOffsetLength()
- */
- public void loadAsArrayOffsetLength(ClassGenerator classGen,
- MethodGenerator methodGen) {
- final ConstantPoolGen cpg = classGen.getConstantPool();
- final InstructionList il = methodGen.getInstructionList();
- final XSLTC xsltc = classGen.getParser().getXSLTC();
-
- // The XSLTC object keeps track of character data
- // that is to be stored in char arrays.
- final int offset = xsltc.addCharacterData(_text);
- final int length = _text.length();
- String charDataFieldName =
- STATIC_CHAR_DATA_FIELD + (xsltc.getCharacterDataCount()-1);
-
- il.append(new GETSTATIC(cpg.addFieldref(xsltc.getClassName(),
- charDataFieldName,
- STATIC_CHAR_DATA_FIELD_SIG)));
- il.append(new PUSH(cpg, offset));
- il.append(new PUSH(cpg, _text.length()));
- }
-}
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