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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.netbeans.modules.javascript2.lexer;
import org.netbeans.modules.javascript2.lexer.api.JsDocumentationTokenId;
import org.netbeans.spi.lexer.LexerInput;
import org.netbeans.spi.lexer.LexerRestartInfo;
@org.netbeans.api.annotations.common.SuppressWarnings({"SF_SWITCH_FALLTHROUGH", "URF_UNREAD_FIELD", "DLS_DEAD_LOCAL_STORE", "DM_DEFAULT_ENCODING"})
%%
%public
%final
%class JsDocumentationColoringLexer
%type JsDocumentationTokenId
%unicode
%caseless
%char
%{
private LexerInput input;
public JsDocumentationColoringLexer(LexerRestartInfo info) {
this.input = info.input();
if(info.state() != null) {
//reset state
setState((LexerState)info.state());
} else {
//initial state
zzState = zzLexicalState = YYINITIAL;
}
}
public LexerState getState() {
if (zzState == YYINITIAL && zzLexicalState == YYINITIAL) {
return null;
}
return new LexerState(zzState, zzLexicalState);
}
public void setState(LexerState state) {
this.zzState = state.zzState;
this.zzLexicalState = state.zzLexicalState;
}
public JsDocumentationTokenId nextToken() throws java.io.IOException {
JsDocumentationTokenId token = yylex();
return token;
}
public static final class LexerState {
/** the current state of the DFA */
final int zzState;
/** the current lexical state */
final int zzLexicalState;
LexerState (int zzState, int zzLexicalState) {
this.zzState = zzState;
this.zzLexicalState = zzLexicalState;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final LexerState other = (LexerState) obj;
if (this.zzState != other.zzState) {
return false;
}
if (this.zzLexicalState != other.zzLexicalState) {
return false;
}
return true;
}
@Override
public int hashCode() {
int hash = 5;
hash = 29 * hash + this.zzState;
hash = 29 * hash + this.zzLexicalState;
return hash;
}
@Override
public String toString() {
return "LexerState{" + "zzState=" + zzState + ", zzLexicalState=" + zzLexicalState + '}';
}
}
// End user code
%}
/* states */
%state DOCBLOCK
%state DOCBLOCK_START
%state AT
%state STRING
%state STRINGEND
/* base structural elements */
AnyChar = (.|[\n])
HtmlString = (["<"]("/"|[:letter:])+) [^"\r"|"\n"|"\r\n"|">"|"*"|"<"]* [>]
Identifier=[[:letter:][:digit:]]+
LineTerminator = \r|\n|\r\n
StringCharacter = [^\r\n\"\\] | \\{LineTerminator}
WhiteSpace = [ \t\f\u00A0\u000B]+
/* comment types */
CommentStart = "/*"
CommentEnd = ["*"]+ + "/"
%%
<YYINITIAL> {
{CommentStart} { yybegin(DOCBLOCK_START); }
{CommentEnd} { return JsDocumentationTokenId.COMMENT_END; }
{AnyChar} { }
}
<DOCBLOCK_START> {
"*" { yybegin(DOCBLOCK); return JsDocumentationTokenId.COMMENT_DOC_START; }
{AnyChar} { yypushback(1); yybegin(DOCBLOCK); return JsDocumentationTokenId.COMMENT_BLOCK_START; }
}
<DOCBLOCK> {
{CommentEnd} { return JsDocumentationTokenId.COMMENT_END; }
{WhiteSpace} { return JsDocumentationTokenId.WHITESPACE; }
{LineTerminator} { return JsDocumentationTokenId.EOL; }
{HtmlString} { return JsDocumentationTokenId.HTML; }
"@" { yybegin(AT); yypushback(1); }
"<" { return JsDocumentationTokenId.OTHER; }
"*" { return JsDocumentationTokenId.ASTERISK; }
"," { return JsDocumentationTokenId.COMMA; }
"{" { return JsDocumentationTokenId.BRACKET_LEFT_CURLY; }
"}" { return JsDocumentationTokenId.BRACKET_RIGHT_CURLY; }
"[" { return JsDocumentationTokenId.BRACKET_LEFT_BRACKET; }
"]" { return JsDocumentationTokenId.BRACKET_RIGHT_BRACKET; }
"\"" { yybegin(STRING); return JsDocumentationTokenId.STRING_BEGIN; }
~({WhiteSpace}
| {LineTerminator}
| "*" | "@" | "<" | "{"
| "}" | "\"" | "," | "["
| "]") { yypushback(1); return JsDocumentationTokenId.OTHER; }
}
<STRING> {
\" { yypushback(1); yybegin(STRINGEND);
if (tokenLength - 1 > 0) {
return JsDocumentationTokenId.STRING;
}
}
{StringCharacter}+ { }
/* escape sequences */
\\. { }
{LineTerminator} { yypushback(1); yybegin(DOCBLOCK);
if (tokenLength - 1 > 0) {
return JsDocumentationTokenId.UNKNOWN;
}
}
}
<STRINGEND> {
\" { yybegin(DOCBLOCK); return JsDocumentationTokenId.STRING_END; }
}
<AT> {
"@"{Identifier} { yybegin(DOCBLOCK); return JsDocumentationTokenId.KEYWORD; }
{AnyChar} { yybegin(DOCBLOCK); return JsDocumentationTokenId.AT; }
}
<<EOF>> {
if (input.readLength() > 0) {
// backup eof
input.backup(1);
//and return the text as error token
return JsDocumentationTokenId.UNKNOWN;
} else {
return null;
}
}
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