/* -*- c-basic-offset: 4; indent-tabs-mode: nil; -*- //------100-columns-wide------>|*/
/*
* Copyright (c) 2002-2004 Extreme! Lab, Indiana University. All rights reserved.
*
* This software is open source. See the bottom of this file for the licence.
*
* $Id: MXParserNonValidating.java,v 1.6 2004/03/02 09:14:41 aslom Exp $
*/
package org.xmlpull.mxp1;
import java.io.IOException;
import org.xmlpull.v1.XmlPullParserException;
/**
* Extend MXP parser to be full non validating XML 1.0 parser
* (added internal DTD parsing and support for full XML 1.0 (or 1.1) character classes).
*
* @author <a href="http://www.extreme.indiana.edu/~aslom/">Aleksander Slominski</a>
*/
public class MXParserNonValidating extends MXParserCachingStrings
{
private boolean processDocDecl;
public MXParserNonValidating() {
super();
}
/**
* This allows to change processing DOCDECL (controls if parser is non-validating).
*/
public void setFeature(String name,
boolean state) throws XmlPullParserException
{
if(FEATURE_PROCESS_DOCDECL.equals(name)) {
if(eventType != START_DOCUMENT) throw new XmlPullParserException(
"process DOCDECL feature can only be changed before parsing", this, null);
processDocDecl = state;
if(state == false) {
//
}
} else {
super.setFeature(name, state);
}
}
public boolean getFeature(String name)
{
if(FEATURE_PROCESS_DOCDECL.equals(name)) {
return processDocDecl;
} else {
return super.getFeature(name);
}
}
// will need to overwrite more() and processEntityRef ...
protected char more() throws IOException, XmlPullParserException {
return super.more();
}
protected char[] lookuEntityReplacement(int entitNameLen)
throws XmlPullParserException, IOException
{
if(!allStringsInterned) {
final int hash = fastHash(buf, posStart, posEnd - posStart);
LOOP:
for (int i = entityEnd - 1; i >= 0; --i)
{
if(hash == entityNameHash[ i ] && entitNameLen == entityNameBuf[ i ].length) {
final char[] entityBuf = entityNameBuf[ i ];
for (int j = 0; j < entitNameLen; j++)
{
if(buf[posStart + j] != entityBuf[j]) continue LOOP;
}
if(tokenize) text = entityReplacement[ i ];
return entityReplacementBuf[ i ];
}
}
} else {
entityRefName = newString(buf, posStart, posEnd - posStart);
for (int i = entityEnd - 1; i >= 0; --i)
{
// take advantage that interning for newStirng is enforced
if(entityRefName == entityName[ i ]) {
if(tokenize) text = entityReplacement[ i ];
return entityReplacementBuf[ i ];
}
}
}
return null;
}
protected void parseDocdecl()
throws XmlPullParserException, IOException
{
//make sure that tokenize flag is disabled temporarily!!!!
final boolean oldTokenize = tokenize;
try {
//ASSUMPTION: seen <!D
char ch = more();
if(ch != 'O') throw new XmlPullParserException(
"expected <!DOCTYPE", this, null);
ch = more();
if(ch != 'C') throw new XmlPullParserException(
"expected <!DOCTYPE", this, null);
ch = more();
if(ch != 'T') throw new XmlPullParserException(
"expected <!DOCTYPE", this, null);
ch = more();
if(ch != 'Y') throw new XmlPullParserException(
"expected <!DOCTYPE", this, null);
ch = more();
if(ch != 'P') throw new XmlPullParserException(
"expected <!DOCTYPE", this, null);
ch = more();
if(ch != 'E') throw new XmlPullParserException(
"expected <!DOCTYPE", this, null);
posStart = pos;
// do simple and crude scanning for end of doctype
// [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? ('['
// (markupdecl | DeclSep)* ']' S?)? '>'
ch = requireNextS();
int nameStart = pos;
ch = readName(ch);
int nameEnd = pos;
ch = skipS(ch);
// [75] ExternalID ::= 'SYSTEM' S SystemLiteral | 'PUBLIC' S PubidLiteral S SystemLiteral
if(ch == 'S' || ch == 'P') {
ch = processExternalId(ch);
ch = skipS(ch);
}
if(ch == '[') {
processInternalSubset();
}
ch = skipS(ch);
if(ch != '>') {
throw new XmlPullParserException(
"expected > to finish <[DOCTYPE but got "+printable(ch), this, null);
}
posEnd = pos - 1;
} finally {
tokenize = oldTokenize;
}
}
protected char processExternalId(char ch)
throws XmlPullParserException, IOException
{
// [75] ExternalID ::= 'SYSTEM' S SystemLiteral | 'PUBLIC' S PubidLiteral S SystemLiteral
// [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'")
// [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'"
// [13] PubidChar ::= #x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%]
//TODO
return ch;
}
protected void processInternalSubset()
throws XmlPullParserException, IOException
{
// [28] ... (markupdecl | DeclSep)* ']' // [WFC: External Subset]
// [28a] DeclSep ::= PEReference | S // [WFC: PE Between Declarations]
// [69] PEReference ::= '%' Name ';' //[WFC: No Recursion] [WFC: In DTD]
while(true) {
char ch = more(); // firs ttime called it will skip initial "["
if(ch == ']') break;
if(ch == '%') {
processPEReference();
} else if(isS(ch)) {
ch = skipS(ch);
} else {
processMarkupDecl(ch);
}
}
}
protected void processPEReference()
throws XmlPullParserException, IOException
{
//TODO
}
protected void processMarkupDecl(char ch)
throws XmlPullParserException, IOException
{
// [29] markupdecl ::= elementdecl | AttlistDecl | EntityDecl | NotationDecl | PI | Comment
// [WFC: PEs in Internal Subset]
//BIG SWITCH statement
if(ch != '<') {
throw new XmlPullParserException("expected < for markupdecl in DTD not "+printable(ch),
this, null);
}
ch = more();
if(ch == '?') {
parsePI();
} else if(ch == '!') {
ch = more();
if(ch == '-') {
// note: if(tokenize == false) posStart/End is NOT changed!!!!
parseComment();
} else {
ch = more();
if(ch == 'A') {
processAttlistDecl(ch); //A-TTLIST
} else if(ch == 'E') {
ch = more();
if(ch == 'L') {
processElementDecl(ch); //EL-EMENT
} else if(ch == 'N') {
processEntityDecl(ch); // EN-TITY
} else {
throw new XmlPullParserException(
"expected ELEMENT or ENTITY after <! in DTD not "+printable(ch),
this, null);
}
} else if(ch == 'N') {
processNotationDecl(ch); //N-OTATION
} else {
throw new XmlPullParserException(
"expected markupdecl after <! in DTD not "+printable(ch),this, null);
}
}
} else {
throw new XmlPullParserException("expected markupdecl in DTD not "+printable(ch),
this, null);
}
}
protected void processElementDecl(char ch)
throws XmlPullParserException, IOException
{
//[45] elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>'
//???? [VC: Unique Element Type Declaration]
// [46] contentspec ::= 'EMPTY' | 'ANY' | Mixed | children
// [47] children ::= (choice | seq) ('?' | '*' | '+')?
// [48] cp ::= (Name | choice | seq) ('?' | '*' | '+')?
// [49] choice ::= '(' S? cp ( S? '|' S? cp )+ S? ')'
// [50] seq ::= '(' S? cp ( S? ',' S? cp )* S? ')'
// [51] Mixed ::= '(' S? '#PCDATA' (S? '|' S? Name)* S? ')*'
// | '(' S? '#PCDATA' S? ')'
//assert ch == 'L'
ch = requireNextS();
readName(ch);
ch = requireNextS();
// readContentSpec(ch);
}
protected void processAttlistDecl(char ch)
throws XmlPullParserException, IOException
{
// [52] AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
// [53] AttDef ::= S Name S AttType S DefaultDecl
// [54] AttType ::= StringType | TokenizedType | EnumeratedType
// [55] StringType ::= 'CDATA'
// [56] TokenizedType ::= 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY' | 'ENTITIES' | 'NMTOKEN'
// | 'NMTOKENS'
// [57] EnumeratedType ::= NotationType | Enumeration
// [58] NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')'
// [59] Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')'
// [60] DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue)
// [WFC: No < in Attribute Values]
//assert ch == 'A'
}
protected void processEntityDecl(char ch)
throws XmlPullParserException, IOException
{
// [70] EntityDecl ::= GEDecl | PEDecl
// [71] GEDecl ::= '<!ENTITY' S Name S EntityDef S? '>'
// [72] PEDecl ::= '<!ENTITY' S '%' S Name S PEDef S? '>'
// [73] EntityDef ::= EntityValue | (ExternalID NDataDecl?)
// [74] PEDef ::= EntityValue | ExternalID
// [75] ExternalID ::= 'SYSTEM' S SystemLiteral | 'PUBLIC' S PubidLiteral S SystemLiteral
//[9] EntityValue ::= '"' ([^%&"] | PEReference | Reference)* '"'
// | "'" ([^%&'] | PEReference | Reference)* "'"
//assert ch == 'N'
}
protected void processNotationDecl(char ch)
throws XmlPullParserException, IOException
{
// [82] NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>'
// [83] PublicID ::= 'PUBLIC' S PubidLiteral
//assert ch == 'N'
}
protected char readName(char ch)
throws XmlPullParserException, IOException
{
if(isNameStartChar(ch)) {
throw new XmlPullParserException(
"XML name must start with name start character not "+printable(ch), this, null);
}
while(isNameChar(ch)) {
ch = more();
}
return ch;
}
}
/*
* Indiana University Extreme! Lab Software License, Version 1.2
*
* Copyright (c) 2002-2004 The Trustees of Indiana University.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1) All redistributions of source code must retain the above
* copyright notice, the list of authors in the original source
* code, this list of conditions and the disclaimer listed in this
* license;
*
* 2) All redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the disclaimer
* listed in this license in the documentation and/or other
* materials provided with the distribution;
*
* 3) Any documentation included with all redistributions must include
* the following acknowledgement:
*
* "This product includes software developed by the Indiana
* University Extreme! Lab. For further information please visit
* http://www.extreme.indiana.edu/"
*
* Alternatively, this acknowledgment may appear in the software
* itself, and wherever such third-party acknowledgments normally
* appear.
*
* 4) The name "Indiana University" or "Indiana University
* Extreme! Lab" shall not be used to endorse or promote
* products derived from this software without prior written
* permission from Indiana University. For written permission,
* please contact http://www.extreme.indiana.edu/.
*
* 5) Products derived from this software may not use "Indiana
* University" name nor may "Indiana University" appear in their name,
* without prior written permission of the Indiana University.
*
* Indiana University provides no reassurances that the source code
* provided does not infringe the patent or any other intellectual
* property rights of any other entity. Indiana University disclaims any
* liability to any recipient for claims brought by any other entity
* based on infringement of intellectual property rights or otherwise.
*
* LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH
* NO WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA
* UNIVERSITY GIVES NO WARRANTIES AND MAKES NO REPRESENTATION THAT
* SOFTWARE IS FREE OF INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR
* OTHER PROPRIETARY RIGHTS. INDIANA UNIVERSITY MAKES NO WARRANTIES THAT
* SOFTWARE IS FREE FROM "BUGS", "VIRUSES", "TROJAN HORSES", "TRAP
* DOORS", "WORMS", OR OTHER HARMFUL CODE. LICENSEE ASSUMES THE ENTIRE
* RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR ASSOCIATED MATERIALS,
* AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION GENERATED USING
* SOFTWARE.
*/