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// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// 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. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package jodd.lagarto;
import jodd.util.ArraysUtil;
import jodd.util.CharArraySequence;
import jodd.util.CharUtil;
import jodd.util.StringPool;
import jodd.util.UnsafeUtil;
import jodd.net.HtmlDecoder;
import static jodd.util.CharUtil.equalsOne;
import static jodd.util.CharUtil.isAlpha;
import static jodd.util.CharUtil.isDigit;
/**
* HTML/XML content parser/tokenizer using {@link TagVisitor} for callbacks.
* Works by the HTML5 specs for tokenization, as described
* on WhatWG.
* Differences from the specs:
*
*
* - text is emitted as a block of text, and not character by character.
* - tags name case (and letter case of other entities) is not changed, but case-sensitive
* information exist for matching.
*
- the whole tokenization process is implemented here, without going into the tree building.
* This applies for switching to the RAWTEXT state.
*
* - script tag is emitted separately
* - conditional comments added
* - xml states and callbacks added
*
*
*
* There are two ways how text is passed back to the visitor.
* By default it is passed as CharBuffer, which
* gives excellent performances. However, if you need more Strings
* than enable it, and all text will be strings. This is faster
* then first converting to char buffer and then to strings.
*/
public class LagartoParser extends Scanner {
protected TagVisitor visitor;
protected ParsedTag tag;
protected ParsedDoctype doctype;
protected long parsingTime;
/**
* Creates parser on char array.
*/
public LagartoParser(final char[] charArray) {
initialize(charArray);
}
/**
* Creates parser on a String.
*/
public LagartoParser(final String string) {
initialize(UnsafeUtil.getChars(string));
}
/**
* Initializes parser.
*/
@Override
protected void initialize(final char[] input) {
super.initialize(input);
this.tag = new ParsedTag();
this.doctype = new ParsedDoctype();
this.text = new char[1024];
this.textLen = 0;
this.parsingTime = -1;
}
// ---------------------------------------------------------------- configuration
protected LagartoParserConfig config = new LagartoParserConfig();
/**
* Returns {@link jodd.lagarto.LagartoParserConfig configuration} for the parser.
*/
public LagartoParserConfig getConfig() {
return config;
}
/**
* Sets parser configuration.
*/
public void setConfig(final LagartoParserConfig config) {
this.config = config;
}
// ---------------------------------------------------------------- parse
protected boolean parsing;
/**
* Parses content and callback provided {@link TagVisitor}.
*/
public void parse(final TagVisitor visitor) {
tag.init(config.caseSensitive);
this.parsingTime = System.currentTimeMillis();
this.visitor = visitor;
visitor.start();
parsing = true;
while (parsing) {
state.parse();
}
emitText();
visitor.end();
this.parsingTime = System.currentTimeMillis() - parsingTime;
}
/**
* Returns parsing time in milliseconds.
*/
public long getParsingTime() {
return parsingTime;
}
// ---------------------------------------------------------------- start & end
/**
* Data state.
*/
protected State DATA_STATE = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
emitText();
parsing = false;
return;
}
char c = input[ndx];
if (c == '<') {
emitText();
state = TAG_OPEN;
return;
}
if (c == '&') {
consumeCharacterReference();
continue;
}
textEmitChar(c);
}
}
};
protected void consumeCharacterReference(final char allowedChar) {
ndx++;
if (isEOF()) {
return;
}
char c = input[ndx];
if (c == allowedChar) {
ndx--;
return;
}
_consumeAttrCharacterReference();
}
protected void consumeCharacterReference() {
ndx++;
if (isEOF()) {
return;
}
_consumeCharacterReference();
}
private void _consumeCharacterReference() {
int unconsumeNdx = ndx - 1;
char c = input[ndx];
if (equalsOne(c, CONTINUE_CHARS)) {
ndx = unconsumeNdx;
textEmitChar('&');
return;
}
if (c == '#') {
_consumeNumber(unconsumeNdx);
} else {
String name = HtmlDecoder.detectName(input, ndx);
if (name == null) {
// this error is not quite as by the spec. The spec says that
// only a sequence of alphanumeric chars ending with semicolon
// gives na error
errorCharReference();
textEmitChar('&');
ndx = unconsumeNdx;
return;
}
// missing legacy attribute thing
ndx += name.length();
textEmitChars(HtmlDecoder.lookup(name));
c = input[ndx];
if (c != ';') {
errorCharReference();
ndx--;
}
}
}
private void _consumeAttrCharacterReference() {
final int unconsumeNdx = ndx - 1;
char c = input[ndx];
if (equalsOne(c, CONTINUE_CHARS)) {
ndx = unconsumeNdx;
textEmitChar('&');
return;
}
if (c == '#') {
_consumeNumber(unconsumeNdx);
} else {
final String name = HtmlDecoder.detectName(input, ndx);
if (name == null) {
// this error is not quite as by the spec. The spec says that
// only a sequence of alphanumeric chars ending with semicolon
// gives na error
errorCharReference();
textEmitChar('&');
ndx = unconsumeNdx;
return;
}
// missing legacy attribute thing
ndx += name.length();
c = input[ndx];
if (c == ';') {
textEmitChars(HtmlDecoder.lookup(name));
} else {
textEmitChar('&');
ndx = unconsumeNdx;
}
}
}
private void _consumeNumber(final int unconsumeNdx) {
ndx++;
if (isEOF()) {
ndx = unconsumeNdx;
return;
}
char c = input[ndx];
int value = 0;
int digitCount = 0;
if (c == 'X' || c == 'x') {
while (true) {
ndx++;
if (isEOF()) {
ndx = unconsumeNdx;
return;
}
c = input[ndx];
if (isDigit(c)) {
value *= 16;
value += c - '0';
digitCount++;
} else if ((c >= 'a') && (c <= 'f')) {
value *= 16;
value += c - 'a' + 10;
digitCount++;
} else if ((c >= 'A') && (c <= 'F')) {
value *= 16;
value += c - 'A' + 10;
digitCount++;
} else {
break;
}
}
} else {
while (isDigit(c)) {
value *= 10;
value += c - '0';
ndx++;
if (isEOF()) {
ndx = unconsumeNdx;
return;
}
c = input[ndx];
digitCount++;
}
}
if (digitCount == 0) {
// no character matches the range
errorCharReference();
ndx = unconsumeNdx;
return;
}
if (c != ';') {
errorCharReference();
ndx--; // go back, as pointer is on the next char
}
boolean isErr = true;
switch (value) {
case 0: c = REPLACEMENT_CHAR; break;
case 0x80: c = '\u20AC'; break;
case 0x81: c = '\u0081'; break;
case 0x82: c = '\u201A'; break;
case 0x83: c = '\u0192'; break;
case 0x84: c = '\u201E'; break;
case 0x85: c = '\u2026'; break;
case 0x86: c = '\u2020'; break;
case 0x87: c = '\u2021'; break;
case 0x88: c = '\u02C6'; break;
case 0x89: c = '\u2030'; break;
case 0x8A: c = '\u0160'; break;
case 0x8B: c = '\u2039'; break;
case 0x8C: c = '\u0152'; break;
case 0x8D: c = '\u008D'; break;
case 0x8E: c = '\u017D'; break;
case 0x8F: c = '\u008F'; break;
case 0x90: c = '\u0090'; break;
case 0x91: c = '\u2018'; break;
case 0x92: c = '\u2019'; break;
case 0x93: c = '\u201C'; break;
case 0x94: c = '\u201D'; break;
case 0x95: c = '\u2022'; break;
case 0x96: c = '\u2013'; break;
case 0x97: c = '\u2014'; break;
case 0x98: c = '\u02DC'; break;
case 0x99: c = '\u2122'; break;
case 0x9A: c = '\u0161'; break;
case 0x9B: c = '\u203A'; break;
case 0x9C: c = '\u0153'; break;
case 0x9D: c = '\u009D'; break;
case 0x9E: c = '\u017E'; break;
case 0x9F: c = '\u0178'; break;
default:
isErr = false;
}
if (isErr) {
errorCharReference();
textEmitChar(c);
return;
}
if (((value >= 0xD800) && (value <= 0xDFF)) || (value > 0x10FFFF)) {
errorCharReference();
textEmitChar(REPLACEMENT_CHAR);
return;
}
c = (char) value;
textEmitChar(c);
if (
((c >= 0x0001) && (c <= 0x0008)) ||
((c >= 0x000D) && (c <= 0x001F)) ||
((c >= 0x007F) && (c <= 0x009F)) ||
((c >= 0xFDD0) && (c <= 0xFDEF))
) {
errorCharReference();
return;
}
if (equalsOne(c, INVALID_CHARS)) {
errorCharReference();
}
}
protected State TAG_OPEN = new State() {
@Override
public void parse() {
tag.start(ndx);
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
textEmitChar('<');
return;
}
char c = input[ndx];
if (c == '!') {
state = MARKUP_DECLARATION_OPEN;
return;
}
if (c == '/') {
state = END_TAG_OPEN;
return;
}
if (isAlpha(c)) {
state = TAG_NAME;
return;
}
if (config.parseXmlTags) {
if (match(XML)) {
ndx += XML.length - 1;
if (xmlDeclaration == null) {
xmlDeclaration = new XmlDeclaration();
}
state = xmlDeclaration.XML_BETWEEN;
return;
}
}
if (c == '?') {
errorInvalidToken();
state = BOGUS_COMMENT;
return;
}
errorInvalidToken();
state = DATA_STATE;
textEmitChar('<');
ndx--;
}
};
protected State END_TAG_OPEN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (isAlpha(c)) {
tag.setType(TagType.END);
state = TAG_NAME;
return;
}
errorInvalidToken();
state = BOGUS_COMMENT;
}
};
protected State TAG_NAME = new State() {
@Override
public void parse() {
int nameNdx = ndx;
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
state = BEFORE_ATTRIBUTE_NAME;
tag.setName(charSequence(nameNdx, ndx));
break;
}
if (c == '/') {
state = SELF_CLOSING_START_TAG;
tag.setName(charSequence(nameNdx, ndx));
break;
}
if (c == '>') {
state = DATA_STATE;
tag.setName(charSequence(nameNdx, ndx));
emitTag();
break;
}
}
}
};
protected State BEFORE_ATTRIBUTE_NAME = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '/') {
state = SELF_CLOSING_START_TAG;
return;
}
if (c == '>') {
state = DATA_STATE;
emitTag();
return;
}
if (equalsOne(c, ATTR_INVALID_1)) {
errorInvalidToken();
}
state = ATTRIBUTE_NAME;
return;
}
}
};
protected State ATTRIBUTE_NAME = new State() {
@Override
public void parse() {
attrStartNdx = ndx;
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
attrEndNdx = ndx;
state = AFTER_ATTRIBUTE_NAME;
return;
}
if (c == '/') {
attrEndNdx = ndx;
_addAttribute();
state = SELF_CLOSING_START_TAG;
return;
}
if (c == '=') {
attrEndNdx = ndx;
state = BEFORE_ATTRIBUTE_VALUE;
return;
}
if (c == '>') {
state = DATA_STATE;
attrEndNdx = ndx;
_addAttribute();
emitTag();
return;
}
if (equalsOne(c, ATTR_INVALID_2)) {
errorInvalidToken();
}
}
}
};
protected State AFTER_ATTRIBUTE_NAME = new State() {
@Override
public void parse() {
while(true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '/') {
state = SELF_CLOSING_START_TAG;
return;
}
if (c == '=') {
state = BEFORE_ATTRIBUTE_VALUE;
return;
}
if (c == '>') {
state = DATA_STATE;
emitTag();
return;
}
if (equalsOne(c, ATTR_INVALID_2)) {
errorInvalidToken();
}
_addAttribute();
state = ATTRIBUTE_NAME;
return;
}
}
};
protected State BEFORE_ATTRIBUTE_VALUE = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '\"') {
state = ATTR_VALUE_DOUBLE_QUOTED;
return;
}
if (c == '\'') {
state = ATTR_VALUE_SINGLE_QUOTED;
return;
}
if (c == '&') {
state = ATTR_VALUE_UNQUOTED;
ndx--;
return;
}
if (c == '>') {
_addAttribute();
errorInvalidToken();
state = DATA_STATE;
emitTag();
return;
}
if (equalsOne(c, ATTR_INVALID_3)) {
errorInvalidToken();
}
state = ATTR_VALUE_UNQUOTED;
return;
}
}
};
protected State ATTR_VALUE_UNQUOTED = new State() {
@Override
public void parse() {
textStart();
textEmitChar(input[ndx]);
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
_addAttributeWithValue();
state = BEFORE_ATTRIBUTE_NAME;
return;
}
if (c == '&') {
consumeCharacterReference('>');
continue;
}
if (c == '>') {
_addAttributeWithValue();
state = DATA_STATE;
emitTag();
return;
}
if (equalsOne(c, ATTR_INVALID_4)) {
errorInvalidToken();
}
textEmitChar(c);
}
}
};
protected State ATTR_VALUE_SINGLE_QUOTED = new State() {
@Override
public void parse() {
textStart();
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '\'') {
_addAttributeWithValue();
state = AFTER_ATTRIBUTE_VALUE_QUOTED;
return;
}
if (c == '&') {
consumeCharacterReference('\'');
continue;
}
textEmitChar(c);
}
}
};
protected State ATTR_VALUE_DOUBLE_QUOTED = new State() {
@Override
public void parse() {
textStart();
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '"') {
_addAttributeWithValue();
state = AFTER_ATTRIBUTE_VALUE_QUOTED;
return;
}
if (c == '&') {
consumeCharacterReference('\"');
continue;
}
textEmitChar(c);
}
}
};
protected State AFTER_ATTRIBUTE_VALUE_QUOTED = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
state = BEFORE_ATTRIBUTE_NAME;
return;
}
if (c == '/') {
state = SELF_CLOSING_START_TAG;
return;
}
if (c == '>') {
state = DATA_STATE;
emitTag();
return;
}
errorInvalidToken();
state = BEFORE_ATTRIBUTE_NAME;
ndx--;
}
};
protected State SELF_CLOSING_START_TAG = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '>') {
tag.setType(TagType.SELF_CLOSING);
state = DATA_STATE;
emitTag();
return;
}
errorInvalidToken();
state = BEFORE_ATTRIBUTE_NAME;
ndx--;
}
};
// ---------------------------------------------------------------- special
protected State BOGUS_COMMENT = new State() {
@Override
public void parse() {
int commentEndNdx = find('>', ndx, total);
if (commentEndNdx == -1) {
commentEndNdx = total;
}
emitComment(ndx, commentEndNdx);
state = DATA_STATE;
ndx = commentEndNdx;
}
};
protected State MARKUP_DECLARATION_OPEN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = BOGUS_COMMENT;
return;
}
if (match(COMMENT_DASH)) {
state = COMMENT_START;
ndx++;
return;
}
if (matchUpperCase(T_DOCTYPE)) {
state = DOCTYPE;
ndx += T_DOCTYPE.length - 1;
return;
}
if (config.enableConditionalComments) {
// CC: downlevel-revealed starting
if (match(CC_IF)) {
int ccEndNdx = find(CC_END, ndx + CC_IF.length, total);
if (ccEndNdx == -1) {
ccEndNdx = total;
}
CharSequence expression = charSequence(ndx + 1, ccEndNdx);
visitor.condComment(expression, true, false, false);
ndx = ccEndNdx + 1;
state = DATA_STATE;
return;
}
// CC: downlevel-* ending tag
if (match(CC_ENDIF)) {
ndx += CC_ENDIF.length;
int ccEndNdx = find('>', ndx, total);
if (ccEndNdx == -1) {
ccEndNdx = total;
}
if (match(COMMENT_DASH, ccEndNdx - 2)) {
// downlevel-hidden ending tag
visitor.condComment(_ENDIF, false, true, false);
} else {
visitor.condComment(_ENDIF, false, false, false);
}
ndx = ccEndNdx;
state = DATA_STATE;
return;
}
}
if (config.parseXmlTags) {
if (match(CDATA)) {
ndx += CDATA.length - 1;
if (xmlDeclaration == null) {
xmlDeclaration = new XmlDeclaration();
}
state = xmlDeclaration.CDATA;
return;
}
}
errorInvalidToken();
state = BOGUS_COMMENT;
}
};
// ---------------------------------------------------------------- RAWTEXT
protected int rawTextStart;
protected int rawTextEnd;
protected char[] rawTagName;
protected State RAWTEXT = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '<') {
rawTextEnd = ndx;
state = RAWTEXT_LESS_THAN_SIGN;
return;
}
}
}
};
protected State RAWTEXT_LESS_THAN_SIGN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = RAWTEXT;
return;
}
char c = input[ndx];
if (c == '/') {
state = RAWTEXT_END_TAG_OPEN;
return;
}
state = RAWTEXT;
}
};
protected State RAWTEXT_END_TAG_OPEN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = RAWTEXT;
return;
}
char c = input[ndx];
if (isAlpha(c)) {
state = RAWTEXT_END_TAG_NAME;
return;
}
state = RAWTEXT;
}
};
protected State RAWTEXT_END_TAG_NAME = new State() {
@Override
public void parse() {
int rawtextEndTagNameStartNdx = ndx;
while (true) {
ndx++;
if (isEOF()) {
state = RAWTEXT;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
if (isAppropriateTagName(rawTagName, rawtextEndTagNameStartNdx, ndx)) {
textEmitChars(rawTextStart, rawTextEnd);
emitText();
state = BEFORE_ATTRIBUTE_NAME;
tag.start(rawTextEnd);
tag.setName(charSequence(rawtextEndTagNameStartNdx, ndx));
tag.setType(TagType.END);
} else {
state = RAWTEXT;
}
return;
}
if (c == '/') {
if (isAppropriateTagName(rawTagName, rawtextEndTagNameStartNdx, ndx)) {
textEmitChars(rawTextStart, rawTextEnd);
emitText();
state = SELF_CLOSING_START_TAG;
tag.start(rawTextEnd);
tag.setName(charSequence(rawtextEndTagNameStartNdx, ndx));
tag.setType(TagType.SELF_CLOSING);
} else {
state = RAWTEXT;
}
return;
}
if (c == '>') {
if (isAppropriateTagName(rawTagName, rawtextEndTagNameStartNdx, ndx)) {
textEmitChars(rawTextStart, rawTextEnd);
emitText();
state = DATA_STATE;
tag.start(rawTextEnd);
tag.setName(charSequence(rawtextEndTagNameStartNdx, ndx));
tag.setType(TagType.END);
tag.end(ndx);
emitTag();
} else {
state = RAWTEXT;
}
return;
}
if (isAlpha(c)) {
continue;
}
state = RAWTEXT;
return;
}
}
};
// ---------------------------------------------------------------- RCDATA
protected int rcdataTagStart = -1;
protected char[] rcdataTagName;
protected State RCDATA = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '<') {
rcdataTagStart = ndx;
state = RCDATA_LESS_THAN_SIGN;
return;
}
if (c == '&') {
consumeCharacterReference();
continue;
}
textEmitChar(c);
}
}
};
protected State RCDATA_LESS_THAN_SIGN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = RCDATA;
return;
}
char c = input[ndx];
if (c == '/') {
state = RCDATA_END_TAG_OPEN;
return;
}
state = RCDATA;
textEmitChar('<');
textEmitChar(c);
}
};
protected State RCDATA_END_TAG_OPEN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = RCDATA;
return;
}
char c = input[ndx];
if (isAlpha(c)) {
state = RCDATA_END_TAG_NAME;
return;
}
state = RCDATA;
textEmitChar('<');
textEmitChar('/');
textEmitChar(c);
}
};
protected State RCDATA_END_TAG_NAME = new State() {
@Override
public void parse() {
int rcdataEndTagNameStartNdx = ndx;
while (true) {
ndx++;
if (isEOF()) {
state = RCDATA;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
if (isAppropriateTagName(rcdataTagName, rcdataEndTagNameStartNdx, ndx)) {
emitText();
state = BEFORE_ATTRIBUTE_NAME;
tag.start(rcdataTagStart);
tag.setName(charSequence(rcdataEndTagNameStartNdx, ndx));
tag.setType(TagType.END);
} else {
state = RCDATA;
}
return;
}
if (c == '/') {
if (isAppropriateTagName(rcdataTagName, rcdataEndTagNameStartNdx, ndx)) {
emitText();
state = SELF_CLOSING_START_TAG;
tag.start(rcdataTagStart);
tag.setName(charSequence(rcdataEndTagNameStartNdx, ndx));
tag.setType(TagType.SELF_CLOSING);
} else {
state = RCDATA;
}
return;
}
if (c == '>') {
if (isAppropriateTagName(rcdataTagName, rcdataEndTagNameStartNdx, ndx)) {
emitText();
state = DATA_STATE;
tag.start(rcdataTagStart);
tag.setName(charSequence(rcdataEndTagNameStartNdx, ndx));
tag.setType(TagType.END);
tag.end(ndx);
emitTag();
} else {
state = RCDATA;
}
return;
}
if (isAlpha(c)) {
continue;
}
state = RCDATA;
return;
}
}
};
// ---------------------------------------------------------------- comments
protected int commentStart;
protected State COMMENT_START = new State() {
@Override
public void parse() {
ndx++;
commentStart = ndx;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitComment(commentStart, total);
return;
}
char c = input[ndx];
if (c == '-') {
state = COMMENT_START_DASH;
return;
}
if (c == '>') {
errorInvalidToken();
state = DATA_STATE;
emitComment(commentStart, ndx);
return;
}
state = COMMENT;
}
};
protected State COMMENT_START_DASH = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitComment(commentStart, total);
return;
}
char c = input[ndx];
if (c == '-') {
state = COMMENT_END;
return;
}
if (c == '>') {
errorInvalidToken();
state = DATA_STATE;
emitComment(commentStart, ndx);
}
state = COMMENT;
}
};
protected State COMMENT = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitComment(commentStart, total);
return;
}
char c = input[ndx];
if (c == '-') {
state = COMMENT_END_DASH;
return;
}
}
}
};
protected State COMMENT_END_DASH = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitComment(commentStart, total);
return;
}
char c = input[ndx];
if (c == '-') {
state = COMMENT_END;
return;
}
state = COMMENT;
}
};
protected State COMMENT_END = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitComment(commentStart, total);
return;
}
char c = input[ndx];
if (c == '>') {
state = DATA_STATE;
emitComment(commentStart, ndx - 2);
return;
}
if (c == '!') {
errorInvalidToken();
state = COMMENT_END_BANG;
return;
}
if (c == '-') {
errorInvalidToken();
} else {
errorInvalidToken();
state = COMMENT;
}
}
};
protected State COMMENT_END_BANG = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitComment(commentStart, total);
return;
}
char c = input[ndx];
if (c == '-') {
state = COMMENT_END_DASH;
return;
}
if (c == '>') {
state = DATA_STATE;
emitComment(commentStart, ndx - 3);
return;
}
state = COMMENT;
}
};
// ---------------------------------------------------------------- DOCTYPE
protected State DOCTYPE = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
state = BEFORE_DOCTYPE_NAME;
return;
}
errorInvalidToken();
state = BEFORE_DOCTYPE_NAME;
ndx--;
}
};
protected State BEFORE_DOCTYPE_NAME = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '>') {
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
state = DOCTYPE_NAME;
return;
}
}
};
protected State DOCTYPE_NAME = new State() {
@Override
public void parse() {
int nameStartNdx = ndx;
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setName(charSequence(nameStartNdx, ndx));
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
state = AFTER_DOCUMENT_NAME;
doctype.setName(charSequence(nameStartNdx, ndx));
return;
}
if (c == '>') {
state = DATA_STATE;
doctype.setName(charSequence(nameStartNdx, ndx));
emitDoctype();
return;
}
}
}
};
protected State AFTER_DOCUMENT_NAME = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '>') {
state = DATA_STATE;
emitDoctype();
return;
}
if (matchUpperCase(A_PUBLIC)) {
ndx += A_PUBLIC.length - 1;
state = AFTER_DOCTYPE_PUBLIC_KEYWORD;
return;
}
if (matchUpperCase(A_SYSTEM)) {
ndx += A_SYSTEM.length - 1;
state = AFTER_DOCTYPE_SYSTEM_KEYWORD;
return;
}
errorInvalidToken();
state = BOGUS_DOCTYPE;
doctype.setQuirksMode(true);
return;
}
}
};
protected int doctypeIdNameStart;
protected State AFTER_DOCTYPE_PUBLIC_KEYWORD = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
state = BEFORE_DOCTYPE_PUBLIC_IDENTIFIER;
return;
}
if (c == '\"') {
errorInvalidToken();
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED;
return;
}
if (c == '\'') {
errorInvalidToken();
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED;
return;
}
if (c == '>') {
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
errorInvalidToken();
state = BOGUS_DOCTYPE;
doctype.setQuirksMode(true);
}
};
protected State BEFORE_DOCTYPE_PUBLIC_IDENTIFIER = new State() {
@Override
public void parse() {
while(true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '\"') {
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED;
return;
}
if (c == '\'') {
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED;
return;
}
if (c == '>') {
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
errorInvalidToken();
doctype.setQuirksMode(true);
state = BOGUS_DOCTYPE;
return;
}
}
};
protected State DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
doctype.setPublicIdentifier(charSequence(doctypeIdNameStart, ndx));
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
}
char c = input[ndx];
if (c == '\"') {
doctype.setPublicIdentifier(charSequence(doctypeIdNameStart, ndx));
state = AFTER_DOCTYPE_PUBLIC_IDENTIFIER;
return;
}
if (c == '>') {
doctype.setPublicIdentifier(charSequence(doctypeIdNameStart, ndx));
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
}
}
};
protected State DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
doctype.setPublicIdentifier(charSequence(doctypeIdNameStart, ndx));
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
}
char c = input[ndx];
if (c == '\'') {
doctype.setPublicIdentifier(charSequence(doctypeIdNameStart, ndx));
state = AFTER_DOCTYPE_PUBLIC_IDENTIFIER;
return;
}
if (c == '>') {
doctype.setPublicIdentifier(charSequence(doctypeIdNameStart, ndx));
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
}
}
};
protected State AFTER_DOCTYPE_PUBLIC_IDENTIFIER = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
state = BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS;
return;
}
if (c == '>') {
state = DATA_STATE;
emitDoctype();
return;
}
if (c == '\"') {
errorInvalidToken();
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
return;
}
if (c == '\'') {
errorInvalidToken();
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
return;
}
errorInvalidToken();
doctype.setQuirksMode(true);
state = BOGUS_DOCTYPE;
}
};
protected State BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '>') {
state = DATA_STATE;
emitDoctype();
return;
}
if (c == '\"') {
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
return;
}
if (c == '\'') {
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
return;
}
errorInvalidToken();
doctype.setQuirksMode(true);
state = BOGUS_DOCTYPE;
return;
}
}
};
protected State BOGUS_DOCTYPE = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
state = DATA_STATE;
emitDoctype();
return;
}
char c = input[ndx];
if (c == '>') {
state = DATA_STATE;
emitDoctype();
return;
}
}
}
};
protected State AFTER_DOCTYPE_SYSTEM_KEYWORD = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
state = BEFORE_DOCTYPE_SYSTEM_IDENTIFIER;
return;
}
if (c == '\"') {
errorInvalidToken();
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
return;
}
if (c == '\'') {
errorInvalidToken();
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
return;
}
if (c == '>') {
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
errorInvalidToken();
state = BOGUS_DOCTYPE;
doctype.setQuirksMode(true);
}
};
protected State BEFORE_DOCTYPE_SYSTEM_IDENTIFIER = new State() {
@Override
public void parse() {
while(true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '\"') {
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
return;
}
if (c == '\'') {
doctypeIdNameStart = ndx + 1;
state = DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
return;
}
if (c == '>') {
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
errorInvalidToken();
doctype.setQuirksMode(true);
state = BOGUS_DOCTYPE;
return;
}
}
};
protected State DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
doctype.setSystemIdentifier(charSequence(doctypeIdNameStart, ndx));
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
}
char c = input[ndx];
if (c == '\"') {
doctype.setSystemIdentifier(charSequence(doctypeIdNameStart, ndx));
state = AFTER_DOCTYPE_SYSTEM_IDENTIFIER;
return;
}
if (c == '>') {
doctype.setSystemIdentifier(charSequence(doctypeIdNameStart, ndx));
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
}
}
};
protected State DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
doctype.setSystemIdentifier(charSequence(doctypeIdNameStart, ndx));
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
}
char c = input[ndx];
if (c == '\'') {
doctype.setSystemIdentifier(charSequence(doctypeIdNameStart, ndx));
state = AFTER_DOCTYPE_SYSTEM_IDENTIFIER;
return;
}
if (c == '>') {
doctype.setSystemIdentifier(charSequence(doctypeIdNameStart, ndx));
errorInvalidToken();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
}
}
};
protected State AFTER_DOCTYPE_SYSTEM_IDENTIFIER = new State() {
@Override
public void parse() {
while(true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
doctype.setQuirksMode(true);
emitDoctype();
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '>') {
state = DATA_STATE;
emitDoctype();
return;
}
errorInvalidToken();
state = BOGUS_DOCTYPE;
// does NOT set the quirks mode!
}
}
};
// ---------------------------------------------------------------- SCRIPT
protected int scriptStartNdx = -1;
protected int scriptEndNdx = -1;
protected int scriptEndTagName = -1;
protected State SCRIPT_DATA = new State() {
@Override
public void parse() {
while(true) {
ndx++;
if (isEOF()) {
emitScript(scriptStartNdx, total);
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '<') {
scriptEndNdx = ndx;
state = SCRIPT_DATA_LESS_THAN_SIGN;
return;
}
}
}
};
protected State SCRIPT_DATA_LESS_THAN_SIGN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA;
ndx--;
return;
}
char c = input[ndx];
if (c == '/') {
state = SCRIPT_DATA_END_TAG_OPEN;
return;
}
if (c == '!') {
if (scriptEscape == null) {
// create script escape states only if really needed
scriptEscape = new ScriptEscape();
}
state = scriptEscape.SCRIPT_DATA_ESCAPE_START;
return;
}
state = SCRIPT_DATA;
}
};
protected State SCRIPT_DATA_END_TAG_OPEN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA;
ndx--;
return;
}
char c = input[ndx];
if (isAlpha(c)) {
state = SCRIPT_DATA_END_TAG_NAME;
scriptEndTagName = ndx;
return;
}
state = SCRIPT_DATA;
}
};
protected State SCRIPT_DATA_END_TAG_NAME = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
if (isAppropriateTagName(T_SCRIPT, scriptEndTagName, ndx)) {
state = BEFORE_ATTRIBUTE_NAME;
} else {
state = SCRIPT_DATA;
}
return;
}
if (c == '/') {
if (isAppropriateTagName(T_SCRIPT, scriptEndTagName, ndx)) {
state = SELF_CLOSING_START_TAG;
} else {
state = SCRIPT_DATA;
}
return;
}
if (c == '>') {
if (isAppropriateTagName(T_SCRIPT, scriptEndTagName, ndx)) {
state = DATA_STATE;
emitScript(scriptStartNdx, scriptEndNdx);
} else {
state = SCRIPT_DATA;
}
return;
}
if (isAlpha(c)) {
continue;
}
state = SCRIPT_DATA;
return;
}
}
};
// ---------------------------------------------------------------- SCRIPT ESCAPE
protected ScriptEscape scriptEscape = null;
/**
* Since escaping states inside the SCRIPT tag are rare, we want to use them
* lazy, only when really needed. Therefore, they are all grouped inside separate
* class that will be instantiated only if needed.
*/
protected class ScriptEscape {
protected int doubleEscapedNdx = -1;
protected int doubleEscapedEndTag = -1;
protected State SCRIPT_DATA_ESCAPE_START = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA;
ndx--;
return;
}
char c = input[ndx];
if (c == '-') {
state = SCRIPT_DATA_ESCAPE_START_DASH;
return;
}
state = SCRIPT_DATA;
}
};
protected State SCRIPT_DATA_ESCAPE_START_DASH = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA;
return;
}
char c = input[ndx];
if (c == '-') {
state = SCRIPT_DATA_ESCAPED_DASH_DASH;
return;
}
state = SCRIPT_DATA;
}
};
protected State SCRIPT_DATA_ESCAPED_DASH_DASH = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '-') {
return;
}
if (c == '<') {
state = SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN;
return;
}
if (c == '>') {
state = SCRIPT_DATA;
return;
}
state = SCRIPT_DATA_ESCAPED;
}
};
protected State SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA_ESCAPED;
return;
}
char c = input[ndx];
if (c == '/') {
doubleEscapedNdx = -1;
state = SCRIPT_DATA_ESCAPED_END_TAG_OPEN;
return;
}
if (isAlpha(c)) {
doubleEscapedNdx = ndx;
state = SCRIPT_DATA_DOUBLE_ESCAPE_START;
return;
}
state = SCRIPT_DATA_ESCAPED;
}
};
protected State SCRIPT_DATA_ESCAPED = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
emitScript(scriptStartNdx, total);
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '-') {
state = SCRIPT_DATA_ESCAPED_DASH;
break;
}
if (c == '<') {
state = SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN;
return;
}
}
}
};
protected State SCRIPT_DATA_ESCAPED_DASH = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '-') {
state = SCRIPT_DATA_ESCAPED_DASH_DASH;
return;
}
if (c == '<') {
state = SCRIPT_DATA_ESCAPED_DASH_DASH;
return;
}
state = SCRIPT_DATA_ESCAPED;
}
};
protected State SCRIPT_DATA_ESCAPED_END_TAG_OPEN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA_ESCAPED;
return;
}
char c = input[ndx];
if (isAlpha(c)) {
// todo Create a new end tag token?
state = SCRIPT_DATA_ESCAPED_END_TAG_NAME;
}
state = SCRIPT_DATA_ESCAPED;
}
};
protected State SCRIPT_DATA_ESCAPED_END_TAG_NAME = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA_ESCAPED;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
if (isAppropriateTagName(T_SCRIPT, scriptEndTagName, ndx)) {
state = BEFORE_ATTRIBUTE_NAME;
} else {
state = SCRIPT_DATA_ESCAPED;
}
return;
}
if (c == '/') {
if (isAppropriateTagName(T_SCRIPT, scriptEndTagName, ndx)) {
state = SELF_CLOSING_START_TAG;
} else {
state = SCRIPT_DATA_ESCAPED;
}
return;
}
if (c == '>') {
if (isAppropriateTagName(T_SCRIPT, scriptEndTagName, ndx)) {
state = DATA_STATE;
emitTag();
} else {
state = SCRIPT_DATA_ESCAPED;
}
return;
}
if (isAlpha(c)) {
continue;
}
state = SCRIPT_DATA_ESCAPED;
return;
}
}
};
// ---------------------------------------------------------------- SCRIPT DOUBLE ESCAPE
protected State SCRIPT_DATA_DOUBLE_ESCAPE_START = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA_ESCAPED;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES_OR_END)) {
if (isAppropriateTagName(T_SCRIPT, doubleEscapedNdx, ndx)) {
state = SCRIPT_DATA_DOUBLE_ESCAPED;
} else {
state = SCRIPT_DATA_ESCAPED;
}
return;
}
if (isAlpha(c)) {
continue;
}
state = SCRIPT_DATA_ESCAPED;
return;
}
}
};
protected State SCRIPT_DATA_DOUBLE_ESCAPED = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '-') {
state = SCRIPT_DATA_DOUBLE_ESCAPED_DASH;
return;
}
if (c == '<') {
state = SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN;
return;
}
}
}
};
protected State SCRIPT_DATA_DOUBLE_ESCAPED_DASH = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '-') {
state = SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH;
return;
}
if (c == '<') {
state = SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN;
return;
}
state = SCRIPT_DATA_DOUBLE_ESCAPED;
}
};
protected State SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '-') {
continue;
}
if (c == '<') {
state = SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN;
return;
}
if (c == '>') {
state = SCRIPT_DATA;
return;
}
state = SCRIPT_DATA_DOUBLE_ESCAPED;
return;
}
}
};
protected State SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA_DOUBLE_ESCAPED;
return;
}
char c = input[ndx];
if (c == '/') {
state = SCRIPT_DATA_DOUBLE_ESCAPE_END;
return;
}
state = SCRIPT_DATA_DOUBLE_ESCAPED;
}
};
protected State SCRIPT_DATA_DOUBLE_ESCAPE_END = new State() {
@Override
public void parse() {
doubleEscapedEndTag = ndx + 1;
while (true) {
ndx++;
if (isEOF()) {
state = SCRIPT_DATA_DOUBLE_ESCAPED;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES_OR_END)) {
if (isAppropriateTagName(T_SCRIPT, doubleEscapedEndTag, ndx)) {
state = SCRIPT_DATA_ESCAPED;
} else {
state = SCRIPT_DATA_DOUBLE_ESCAPED;
}
return;
}
if (isAlpha(c)) {
continue;
}
state = SCRIPT_DATA_DOUBLE_ESCAPED;
return;
}
}
};
}
// ---------------------------------------------------------------- xml
protected XmlDeclaration xmlDeclaration = null;
protected class XmlDeclaration {
protected int xmlAttrCount = 0;
protected int xmlAttrStartNdx = -1;
protected CharSequence version;
protected CharSequence encoding;
protected CharSequence standalone;
protected char attrQuote;
protected void reset() {
xmlAttrCount = 0;
xmlAttrStartNdx = -1;
version = encoding = standalone = null;
}
protected State XML_BETWEEN = new State() {
@Override
public void parse() {
while (true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '?') {
state = XML_CLOSE;
return;
}
switch (xmlAttrCount) {
case 0:
if (match(XML_VERSION)) {
ndx += XML_VERSION.length - 1;
state = AFTER_XML_ATTRIBUTE_NAME;
return;
}
break;
case 1:
if (match(XML_ENCODING)) {
ndx += XML_ENCODING.length - 1;
state = AFTER_XML_ATTRIBUTE_NAME;
return;
}
break;
case 2:
if (match(XML_STANDALONE)) {
ndx += XML_STANDALONE.length - 1;
state = AFTER_XML_ATTRIBUTE_NAME;
return;
}
break;
}
errorInvalidToken();
state = DATA_STATE;
}
}
};
protected State AFTER_XML_ATTRIBUTE_NAME = new State() {
@Override
public void parse() {
while(true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '=') {
state = BEFORE_XML_ATTRIBUTE_VALUE;
return;
}
errorInvalidToken();
state = DATA_STATE;
return;
}
}
};
protected State BEFORE_XML_ATTRIBUTE_VALUE = new State() {
@Override
public void parse() {
while(true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (equalsOne(c, TAG_WHITESPACES)) {
continue;
}
if (c == '\"' || c == '\'') {
state = XML_ATTRIBUTE_VALUE;
attrQuote = c;
return;
}
errorInvalidToken();
state = DATA_STATE;
return;
}
}
};
protected State XML_ATTRIBUTE_VALUE = new State() {
@Override
public void parse() {
xmlAttrStartNdx = ndx + 1;
while(true) {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == attrQuote) {
CharSequence value = charSequence(xmlAttrStartNdx, ndx);
switch (xmlAttrCount) {
case 0: version = value; break;
case 1: encoding = value; break;
case 2: standalone = value; break;
}
xmlAttrCount++;
state = XML_BETWEEN;
return;
}
}
}
};
protected State XML_CLOSE = new State() {
@Override
public void parse() {
ndx++;
if (isEOF()) {
errorEOF();
state = DATA_STATE;
return;
}
char c = input[ndx];
if (c == '>') {
emitXml();
state = DATA_STATE;
return;
}
errorInvalidToken();
state = DATA_STATE;
}
};
// ---------------------------------------------------------------- CDATA
protected State CDATA = new State() {
@Override
public void parse() {
ndx++;
int cdataEndNdx = find(CDATA_END, ndx, total);
if (cdataEndNdx == -1) {
cdataEndNdx = total;
}
CharSequence cdata = charSequence(ndx, cdataEndNdx);
emitCData(cdata);
ndx = cdataEndNdx + 2;
state = DATA_STATE;
}
};
}
// ---------------------------------------------------------------- text
protected char[] text;
protected int textLen;
private void ensureCapacity() {
if (textLen == text.length) {
text = ArraysUtil.resize(text, textLen << 1);
}
}
private void ensureCapacity(final int growth) {
int desiredLen = textLen + growth;
if (desiredLen > text.length) {
text = ArraysUtil.resize(text, Math.max(textLen << 1, desiredLen));
}
}
/**
* Emits characters into the local text buffer.
*/
protected void textEmitChar(final char c) {
ensureCapacity();
text[textLen++] = c;
}
/**
* Resets text buffer.
*/
protected void textStart() {
textLen = 0;
}
protected void textEmitChars(int from, final int to) {
ensureCapacity(to - from);
while (from < to) {
text[textLen++] = input[from++];
}
}
protected void textEmitChars(final char[] buffer) {
ensureCapacity(buffer.length);
for (char aBuffer : buffer) {
text[textLen++] = aBuffer;
}
}
protected CharSequence textWrap() {
if (textLen == 0) {
return CharArraySequence.EMPTY;
}
return new String(text, 0, textLen); // todo use charSequence pointer instead!
}
// ---------------------------------------------------------------- attr
protected int attrStartNdx = -1;
protected int attrEndNdx = -1;
private void _addAttribute() {
_addAttribute(charSequence(attrStartNdx, attrEndNdx), null);
}
private void _addAttributeWithValue() {
_addAttribute(charSequence(attrStartNdx, attrEndNdx), textWrap().toString());
}
private void _addAttribute(final CharSequence attrName, final CharSequence attrValue) {
if (tag.getType() == TagType.END) {
_error("Ignored end tag attribute");
} else {
if (tag.hasAttribute(attrName)) {
_error("Ignored duplicated attribute: " + attrName);
} else {
tag.addAttribute(attrName, attrValue);
}
}
attrStartNdx = -1;
attrEndNdx = -1;
textLen = 0;
}
protected void emitTag() {
tag.end(ndx + 1);
if (config.calculatePosition) {
tag.setPosition(position(tag.getTagPosition()));
}
if (tag.getType().isStartingTag()) {
if (matchTagName(T_SCRIPT)) {
scriptStartNdx = ndx + 1;
state = SCRIPT_DATA;
return;
}
// detect RAWTEXT tags
if (config.enableRawTextModes) {
for (char[] rawtextTagName : RAWTEXT_TAGS) {
if (matchTagName(rawtextTagName)) {
tag.setRawTag(true);
state = RAWTEXT;
rawTextStart = ndx + 1;
rawTagName = rawtextTagName;
break;
}
}
// detect RCDATA tag
for (char[] rcdataTextTagName : RCDATA_TAGS) {
if (matchTagName(rcdataTextTagName)) {
state = RCDATA;
rcdataTagStart = ndx + 1;
rcdataTagName = rcdataTextTagName;
break;
}
}
}
tag.increaseDeepLevel();
}
visitor.tag(tag);
if (tag.getType().isEndingTag()) {
tag.decreaseDeepLevel();
}
}
/**
* Emits a comment. Also checks for conditional comments!
*/
protected void emitComment(final int from, final int to) {
if (config.enableConditionalComments) {
// CC: downlevel-hidden starting
if (match(CC_IF, from)) {
int endBracketNdx = find(']', from + 3, to);
CharSequence expression = charSequence(from + 1, endBracketNdx);
ndx = endBracketNdx + 1;
char c = input[ndx];
if (c != '>') {
errorInvalidToken();
}
visitor.condComment(expression, true, true, false);
state = DATA_STATE;
return;
}
if (to > CC_ENDIF2.length && match(CC_ENDIF2, to - CC_ENDIF2.length)) {
// CC: downlevel-hidden ending
visitor.condComment(_ENDIF, false, true, true);
state = DATA_STATE;
return;
}
}
CharSequence comment = charSequence(from, to);
visitor.comment(comment);
commentStart = -1;
}
/**
* Emits text if there is some content.
*/
protected void emitText() {
if (textLen != 0) {
visitor.text(textWrap());
}
textLen = 0;
}
protected void emitScript(final int from, final int to) {
tag.increaseDeepLevel();
tag.setRawTag(true);
visitor.script(tag, charSequence(from, to));
tag.decreaseDeepLevel();
scriptStartNdx = -1;
scriptEndNdx = -1;
}
protected void emitDoctype() {
visitor.doctype(doctype);
doctype.reset();
}
protected void emitXml() {
visitor.xml(xmlDeclaration.version, xmlDeclaration.encoding, xmlDeclaration.standalone);
xmlDeclaration.reset();
}
protected void emitCData(final CharSequence charSequence) {
visitor.cdata(charSequence);
}
// ---------------------------------------------------------------- error
protected void errorEOF() {
_error("Parse error: EOF");
}
protected void errorInvalidToken() {
_error("Parse error: invalid token");
}
protected void errorCharReference() {
_error("Parse error: invalid character reference");
}
/**
* Prepares error message and reports it to the visitor.
*/
protected void _error(String message) {
if (config.calculatePosition) {
Position currentPosition = position(ndx);
message = message
.concat(StringPool.SPACE)
.concat(currentPosition.toString());
} else {
message = message
.concat(" [@")
.concat(Integer.toString(ndx))
.concat(StringPool.RIGHT_SQ_BRACKET);
}
visitor.error(message);
}
// ---------------------------------------------------------------- util
private boolean isAppropriateTagName(final char[] lowerCaseNameToMatch, final int from, final int to) {
final int len = to - from;
if (len != lowerCaseNameToMatch.length) {
return false;
}
for (int i = from, k = 0; i < to; i++, k++) {
char c = input[i];
c = CharUtil.toLowerAscii(c);
if (c != lowerCaseNameToMatch[k]) {
return false;
}
}
return true;
}
private boolean matchTagName(final char[] tagNameLowercase) {
final CharSequence charSequence = tag.getName();
int length = tagNameLowercase.length;
if (charSequence.length() != length) {
return false;
}
for (int i = 0; i < length; i++) {
char c = charSequence.charAt(i);
c = CharUtil.toLowerAscii(c);
if (c != tagNameLowercase[i]) {
return false;
}
}
return true;
}
// ---------------------------------------------------------------- state
protected State state = DATA_STATE;
// ---------------------------------------------------------------- names
private static final char[] TAG_WHITESPACES = new char[] {'\t', '\n', '\r', ' '};
private static final char[] TAG_WHITESPACES_OR_END = new char[] {'\t', '\n', '\r', ' ', '/', '>'};
private static final char[] CONTINUE_CHARS = new char[] {'\t', '\n', '\r', ' ', '<', '&'};
private static final char[] ATTR_INVALID_1 = new char[] {'\"', '\'', '<', '='};
private static final char[] ATTR_INVALID_2 = new char[] {'\"', '\'', '<'};
private static final char[] ATTR_INVALID_3 = new char[] {'<', '=', '`'};
private static final char[] ATTR_INVALID_4 = new char[] {'"', '\'', '<', '=', '`'};
private static final char[] COMMENT_DASH = new char[] {'-', '-'};
private static final char[] T_DOCTYPE = new char[] {'D', 'O', 'C', 'T', 'Y', 'P', 'E'};
private static final char[] T_SCRIPT = new char[] {'s', 'c', 'r', 'i', 'p', 't'};
private static final char[] T_XMP = new char[] {'x', 'm', 'p'};
private static final char[] T_STYLE = new char[] {'s', 't', 'y', 'l', 'e'};
private static final char[] T_IFRAME = new char[] {'i', 'f', 'r', 'a', 'm', 'e'};
private static final char[] T_NOFRAMES = new char[] {'n', 'o', 'f', 'r', 'a', 'm', 'e', 's'};
private static final char[] T_NOEMBED = new char[] {'n', 'o', 'e', 'm', 'b', 'e', 'd'};
private static final char[] T_NOSCRIPT = new char[] {'n', 'o', 's', 'c', 'r', 'i', 'p', 't'};
private static final char[] T_TEXTAREA = new char[] {'t', 'e', 'x', 't', 'a', 'r', 'e', 'a'};
private static final char[] T_TITLE = new char[] {'t', 'i', 't', 'l', 'e'};
private static final char[] A_PUBLIC = new char[] {'P', 'U', 'B', 'L', 'I', 'C'};
private static final char[] A_SYSTEM = new char[] {'S', 'Y', 'S', 'T', 'E', 'M'};
private static final char[] CDATA = new char[] {'[', 'C', 'D', 'A', 'T', 'A', '['};
private static final char[] CDATA_END = new char[] {']', ']', '>'};
private static final char[] XML = new char[] {'?', 'x', 'm', 'l'};
private static final char[] XML_VERSION = new char[] {'v', 'e', 'r', 's', 'i', 'o', 'n'};
private static final char[] XML_ENCODING = new char[] {'e', 'n', 'c', 'o', 'd', 'i', 'n', 'g'};
private static final char[] XML_STANDALONE = new char[] {'s', 't', 'a', 'n', 'd', 'a', 'l', 'o', 'n', 'e'};
private static final char[] CC_IF = new char[] {'[', 'i', 'f', ' '};
private static final char[] CC_ENDIF = new char[] {'[', 'e', 'n', 'd', 'i', 'f', ']'};
private static final char[] CC_ENDIF2 = new char[] {'<', '!', '[', 'e', 'n', 'd', 'i', 'f', ']'};
private static final char[] CC_END = new char[] {']', '>'};
// CDATA
private static final char[][] RAWTEXT_TAGS = new char[][] {
T_XMP, T_STYLE, T_IFRAME, T_NOEMBED, T_NOFRAMES, T_NOSCRIPT, T_SCRIPT
};
private static final char[][] RCDATA_TAGS = new char[][] {
T_TEXTAREA, T_TITLE
};
private static final char REPLACEMENT_CHAR = '\uFFFD';
private static final char[] INVALID_CHARS = new char[] {'\u000B', '\uFFFE', '\uFFFF'};
//, '\u1FFFE', '\u1FFFF', '\u2FFFE', '\u2FFFF', '\u3FFFE', '\u3FFFF', '\u4FFFE,
// '\u4FFFF', '\u5FFFE', '\u5FFFF', '\u6FFFE', '\u6FFFF', '\u7FFFE', '\u7FFFF', '\u8FFFE', '\u8FFFF', '\u9FFFE,
// '\u9FFFF', '\uAFFFE', '\uAFFFF', '\uBFFFE', '\uBFFFF', '\uCFFFE', '\uCFFFF', '\uDFFFE', '\uDFFFF', '\uEFFFE,
// '\uEFFFF', '\uFFFFE', '\uFFFFF', '\u10FFFE', '\u10FFFF',
private static final CharSequence _ENDIF = "endif";
}