org.netbeans.modules.schema2beansdev.DocDefParser Maven / Gradle / Ivy
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package org.netbeans.modules.schema2beansdev;
import java.io.*;
import org.netbeans.modules.schema2beans.*;
/**
*
* This class implement the Document Definition handler in order to build
* the internal tree representation of the DD DTD.
*
*/
public class DocDefParser extends GeneralParser implements SchemaParser {
static class MissingEndOfEltException extends RuntimeException {
String propName;
public MissingEndOfEltException(String propName) {
this.propName = propName;
}
}
static private final int WORD_NO_CONTEXT = 0;
static private final int WORD_CHECK = 1;
static private final int WORD_COMMENT = 2;
static private final int WORD_ELEMENT1 = 3;
static private final int WORD_ELEMENT = 4;
static private final int WORD_ATTLIST1 = 5;
static private final int WORD_ATTLIST = 6;
static private final int WORD_PI = 7;
static private final int WORD_ENTITY1 = 10;
static private final int WORD_ENTITY = 11;
static String errHeader = "DTD parsing failed: "; // NOI18N
// Buffer used to read the file by chunks
private char buffer[] = new char[BUFFER_SIZE];
// Current size of the buffer
private int bufSize;
// Reading offset in the buffer while parsing
private int bufScan;
protected static int BUFFER_SIZE = 4096;
// Handler to callback with the tokens found in the DTD.
private DocDefHandler handler;
private GenBeans.Config config = null;
public DocDefParser() {
}
public DocDefParser(GenBeans.Config config, DocDefHandler handler) {
this.config = config;
this.filename = config.getFilename();
this.schemaIn = config.getFileIn();
this.handler = handler;
}
protected @Override void startupReader() throws java.io.IOException {
if (schemaIn == null) {
schemaIn = new FileInputStream(filename);
}
EntityParser entityParser = new EntityParser(new InputStreamReader(schemaIn));
entityParser.parse();
reader = entityParser.getReader();
}
public void setHandler(DocDefHandler handler) {
this.handler = handler;
}
public DocDefHandler getHandler() {
return this.handler;
}
protected boolean checkBuffer() throws IOException {
if (this.bufScan >= this.bufSize) {
// Buffer either empty or already parsed - get more from the file
this.bufSize = reader.read(this.buffer);
if (this.bufSize == -1)
return false;
this.bufScan = 0;
}
return true;
}
/**
* Returns the next character of the parsed file.
*/
protected char getNext() throws IOException {
if (this.checkBuffer())
return this.buffer[this.bufScan++];
else
return '\0';
}
/**
* Get the next character without moving the parser offset.
*/
protected char peekNext() throws IOException {
if (this.checkBuffer())
return this.buffer[this.bufScan];
else
return '\0';
}
/**
* Return the instance value associated with an element
*/
private static int getInstanceValue(char c) {
switch(c) {
case '*':
return Common.TYPE_0_N;
case '+':
return Common.TYPE_1_N;
case '?':
return Common.TYPE_0_1;
default:
// We assume this default value if nothing is specified
return Common.TYPE_1;
}
}
/**
* Find out the type of the current word
*/
private int processWord(StringBuffer curWord, int wordContext) throws SchemaParseException{
String word = curWord.toString();
int len = word.length();
if (len >0) {
// We have some word to play with
switch (wordContext) {
case WORD_CHECK:
if (word.startsWith("--")) { // NOI18N
if (len > 2)
word = curWord.substring(2);
else
word = ""; // NOI18N
this.handler.startElement(word, word, Common.COMMENT);
wordContext = WORD_COMMENT;
} else if (word.equals("ELEMENT")) // NOI18N
wordContext = WORD_ELEMENT1;
else if (word.equals("ATTLIST")) // NOI18N
wordContext = WORD_ATTLIST1;
else if (word.equals("ENTITY")) // NOI18N
wordContext = WORD_ENTITY1;
else {
//System.err.println("Error: found an unknown '':
// Might be the end of a comment or ' without '' without '© 2015 - 2025 Weber Informatics LLC | Privacy Policy