diff options
Diffstat (limited to 'bundles/org.eclipse.wst.sse.core/DevTimeSupport/HeadParsers/XMLHeadTokenizer/XMLHeadTokenizer.jFlex')
| -rw-r--r-- | bundles/org.eclipse.wst.sse.core/DevTimeSupport/HeadParsers/XMLHeadTokenizer/XMLHeadTokenizer.jFlex | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/bundles/org.eclipse.wst.sse.core/DevTimeSupport/HeadParsers/XMLHeadTokenizer/XMLHeadTokenizer.jFlex b/bundles/org.eclipse.wst.sse.core/DevTimeSupport/HeadParsers/XMLHeadTokenizer/XMLHeadTokenizer.jFlex deleted file mode 100644 index d6fe899700..0000000000 --- a/bundles/org.eclipse.wst.sse.core/DevTimeSupport/HeadParsers/XMLHeadTokenizer/XMLHeadTokenizer.jFlex +++ /dev/null @@ -1,260 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -/*nlsXXX*/ -package org.eclipse.wst.common.encoding.contentspecific.xml; -import java.io.IOException; -import java.io.Reader; - -import org.eclipse.wst.common.encoding.contentspecific.EncodingParserConstants; -import org.eclipse.wst.common.encoding.contentspecific.HeadParserToken; -import org.eclipse.wst.common.encoding.contentspecific.IntStack; -import org.eclipse.wst.common.encoding.contentspecific.xml.XMLHeadTokenizerConstants; - - - - -%% - -%{ - - - private boolean hasMore = true; - private final static int MAX_TO_SCAN = 8000; - StringBuffer string = new StringBuffer(); - // state stack for easier state handling - private IntStack fStateStack = new IntStack(); - private String valueText = null; - - - public XMLHeadTokenizer() { - super(); - } - - public void reset (Reader in) { - /* the input device */ - zzReader = in; - - /* the current state of the DFA */ - zzState = 0; - - /* the current lexical state */ - zzLexicalState = YYINITIAL; - - /* this buffer contains the current text to be matched and is - the source of the yytext() string */ - java.util.Arrays.fill(zzBuffer, (char)0); - - /* the textposition at the last accepting state */ - zzMarkedPos = 0; - - /* the textposition at the last state to be included in yytext */ - zzPushbackPos = 0; - - /* the current text position in the buffer */ - zzCurrentPos = 0; - - /* startRead marks the beginning of the yytext() string in the buffer */ - zzStartRead = 0; - - /** - * endRead marks the last character in the buffer, that has been read - * from input - */ - zzEndRead = 0; - - /* number of newlines encountered up to the start of the matched text */ - yyline = 0; - - /* the number of characters up to the start of the matched text */ - yychar = 0; - - /** - * the number of characters from the last newline up to the start - * of the matched text - */ - yycolumn = 0; - - /** - * yy_atBOL == true <=> the scanner is currently at the beginning - * of a line - */ - zzAtBOL = true; - - /* yy_atEOF == true <=> the scanner has returned a value for EOF */ - zzAtEOF = false; - - /* denotes if the user-EOF-code has already been executed */ - zzEOFDone = false; - - - fStateStack.clear(); - - hasMore = true; - - } - - - public final HeadParserToken getNextToken() throws IOException { - String context = null; - context = primGetNextToken(); - HeadParserToken result = null; - if (valueText != null) { - result = createToken(context, yychar, valueText); - valueText = null; - } else { - result = createToken(context, yychar, yytext()); - } - return result; - } - - public final boolean hasMoreTokens() { - return hasMore && yychar < MAX_TO_SCAN; - } - private void pushCurrentState() { - fStateStack.push(yystate()); - - } - - private void popState() { - yybegin(fStateStack.pop()); - } - - private HeadParserToken createToken(String context, int start, String text) { - return new HeadParserToken(context, start, text); - } - -%} - -%eof{ - hasMore=false; -%eof} - -%public -%class XMLHeadTokenizer -%function primGetNextToken -%type String -%char -%unicode -%ignorecase -//%debug -%switch -%buffer 8192 - -UTF16BE = \xFE\xFF -UTF16LE = \xFF\xFE -UTF83ByteBOM = \xEF\xBB\xBF - -SpaceChar = [\x20\x09] - -// [3] S ::= (0x20 | 0x9 | 0xD | 0xA)+ -S = [\x20\x09\x0D\x0A] - -BeginAttribeValue = {S}* \= {S}* - -LineTerminator = \r|\n - - -%state ST_XMLDecl -%state QuotedAttributeValue -%state DQ_STRING -%state SQ_STRING -%state UnDelimitedString - -%% - - -<YYINITIAL> -{ - // force to start at beginning of line (^) and at beginning of file (yychar == 0) - ^{UTF16BE} {if (yychar == 0 ) {hasMore = false; return EncodingParserConstants.UTF16BE;}} - ^{UTF16LE} {if (yychar == 0 ) {hasMore = false; return EncodingParserConstants.UTF16LE;}} - ^{UTF83ByteBOM} {if (yychar == 0 ) {hasMore = false; return EncodingParserConstants.UTF83ByteBOM;}} - - // force to be started on first line, but we do allow preceeding spaces - ^ {S}* "<\?xml" {S}+ {if (yychar == 0 ) {yybegin(ST_XMLDecl); return XMLHeadTokenizerConstants.XMLDeclStart;}} - -} - -<ST_XMLDecl> -{ - "version" {BeginAttribeValue} {pushCurrentState(); yybegin(QuotedAttributeValue); return XMLHeadTokenizerConstants.XMLDeclVersion;} - "encoding" {BeginAttribeValue} {pushCurrentState(); yybegin(QuotedAttributeValue); return XMLHeadTokenizerConstants.XMLDelEncoding;} - // note the "forced end" (via 'hasMore=false') once the end of XML Declaration found - // This is since non-ascii chars may follow and may cause IOExceptions which would not occur once stream is - // read with incorrect encoding (such as if platform encoding is in effect until true encoding detected). - "\?>" {yybegin(YYINITIAL); hasMore = false; return XMLHeadTokenizerConstants.XMLDeclEnd;} -} - - - -<QuotedAttributeValue> -{ - \" { yybegin(DQ_STRING); string.setLength(0); } - \' { yybegin(SQ_STRING); string.setLength(0); } - // in this state, anything other than a space character can start an undelimited string - {S}*. { yypushback(1); yybegin(UnDelimitedString); string.setLength(0);} - -} - - -<DQ_STRING> -{ - - \" { popState(); valueText = string.toString(); return EncodingParserConstants.StringValue; } - {LineTerminator} { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - "\?>" { yypushback(2); popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - '<' { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - . { string.append( yytext() ); } - - -} - -<SQ_STRING> -{ - - \' { popState(); valueText = string.toString(); return EncodingParserConstants.StringValue;} - {LineTerminator} { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - "%>" { yypushback(2);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - '<' { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - . { string.append( yytext() ); } - - -} - -<UnDelimitedString> -{ - - {S} { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.UnDelimitedStringValue; } - {LineTerminator} { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - "\?>" { yypushback(2);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - '<' - { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTerminatedStringValue;} - // these are a bit special, since we started an undelimit string, but found a quote ... probably indicates a missing beginning quote - \' { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTermintatedUnDelimitedStringValue;} - - \" { yypushback(1);popState(); valueText = string.toString(); return EncodingParserConstants.InvalidTermintatedUnDelimitedStringValue;} - - . { string.append( yytext() ); } - -} - -// The "match anything" rule should always be in effect except for when looking for end of string -// (That is, remember to update state list if/when new states added) -<YYINITIAL, ST_XMLDecl, QuotedAttributeValue> -{ -// this is the fallback (match "anything") rule (for this scanner, input is ignored, and position advanced, if not recognized) -.|\n {if (yychar > MAX_TO_SCAN) {hasMore=false; return EncodingParserConstants.MAX_CHARS_REACHED;}} -} - -// this rule always in effect -<<EOF>> {hasMore = false; return EncodingParserConstants.EOF;} - -
\ No newline at end of file |