delete old grammar generator

This commit is contained in:
Dmitry Jemerov
2015-03-20 12:08:05 +01:00
parent a6e5c0a76e
commit bed63c8321
15 changed files with 3 additions and 1313 deletions
+3 -1
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@@ -1 +1,3 @@
This module contains a semi-formal description of Kotlin grammar along with some code that translates it into a confluence wiki format.
This module contains a semi-formal description of Kotlin grammar.
It is processed by a [tool](https://github.com/JetBrains/kotlin-grammar-generator) to generate the Kotlin
grammar specification on the [Kotlin Web site](http://kotlinlang.org/docs/reference/grammar.html).
-40
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@@ -1,40 +0,0 @@
<project name="GrammarLexer" default="lexer">
<property name="home" value="${basedir}"/>
<property name="flex.base" value="${home}/../dependencies/jflex"/>
<property name="out.dir" value="${basedir}/tmpout"/>
<macrodef name="flex">
<attribute name="flexfile"/>
<attribute name="destdir"/>
<attribute name="skeleton" default="${flex.base}/idea-flex.skeleton"/>
<sequential>
<delete dir="${out.dir}"/>
<mkdir dir="${out.dir}"/>
<java classname="JFlex.Main"
jvmargs="-Xmx512M"
fork="true"
failonerror="true">
<arg value="-sliceandcharat"/>
<arg value="-skel"/>
<arg value="@{skeleton}"/>
<arg value="-d"/>
<arg value="${out.dir}"/>
<arg value="@{flexfile}"/>
<classpath>
<pathelement location="${flex.base}/JFlex.jar"/>
</classpath>
</java>
<move todir="@{destdir}">
<fileset dir="${out.dir}">
<include name="*.java"/>
</fileset>
</move>
<delete dir="${out.dir}"/>
</sequential>
</macrodef>
<target name="lexer">
<flex flexfile="${home}/src/org/jetbrains/kotlin/grammar/Grammar.flex"
destdir="${home}//src/org/jetbrains/kotlin/grammar/"/>
</target>
</project>
@@ -1,28 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class Annotation extends Token {
public Annotation(CharSequence text, String fileName, int line) {
super(text, fileName, line);
}
@Override
public String toString() {
return "{{" + super.toString().replaceAll("\\[", "").replaceAll("\\]", "") + "}}";
}
}
@@ -1,28 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class Comment extends Token {
public Comment(CharSequence text, String fileName, int line) {
super(text, fileName, line);
}
@Override
public String toString() {
return "";//getText().toString().replaceAll("\\{", "\\\\{").replaceAll("\\[", "\\\\[").replaceAll("\\(", "\\\\(");
}
}
@@ -1,202 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
import com.google.common.base.Supplier;
import com.google.common.collect.*;
import com.intellij.openapi.util.io.FileUtil;
import java.awt.*;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.io.File;
import java.io.IOException;
import java.io.Reader;
import java.util.*;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ConfluenceHyperlinksGenerator {
private static final String GRAMMAR_EXTENSION = "grm";
private static final List<String> FILE_NAMES_IN_ORDER = Arrays.asList(
"notation",
"toplevel",
"class",
"class_members",
"enum",
"types",
"control",
"expressions",
"when",
"modifiers",
"attributes",
"lexical"
);
public static void main(String[] args) throws IOException {
File grammarDir = new File("grammar/src");
Set<File> used = new HashSet<File>();
List<Token> tokens = getJoinedTokensFromAllFiles(grammarDir, used);
assertAllFilesAreUsed(grammarDir, used);
StringBuilder result = generate(tokens);
copyToClipboard(result);
}
private static List<Token> getJoinedTokensFromAllFiles(File grammarDir, Set<File> used) throws IOException {
List<Token> allTokens = Lists.newArrayList();
for (String fileName : FILE_NAMES_IN_ORDER) {
File file = new File(grammarDir, fileName + "." + GRAMMAR_EXTENSION);
used.add(file);
String text = FileUtil.loadFile(file, true);
StringBuilder textWithMarkedDeclarations = markDeclarations(text);
List<Token> tokens = tokenize(createLexer(file.getPath(), textWithMarkedDeclarations));
allTokens.addAll(tokens);
}
return allTokens;
}
private static _GrammarLexer createLexer(String fileName, StringBuilder output) {
_GrammarLexer grammarLexer = new _GrammarLexer((Reader) null);
grammarLexer.reset(output, 0, output.length(), 0);
grammarLexer.setFileName(fileName);
return grammarLexer;
}
private static void assertAllFilesAreUsed(File grammarDir, Set<File> used) {
for (File file : grammarDir.listFiles()) {
if (file.getName().endsWith(GRAMMAR_EXTENSION)) {
if (!used.contains(file)) {
throw new IllegalStateException("Unused grammar file : " + file.getAbsolutePath());
}
}
}
}
private static StringBuilder markDeclarations(CharSequence allRules) {
StringBuilder output = new StringBuilder();
Pattern symbolReference = Pattern.compile("^\\w+$", Pattern.MULTILINE);
Matcher matcher = symbolReference.matcher(allRules);
int copiedUntil = 0;
while (matcher.find()) {
int start = matcher.start();
output.append(allRules.subSequence(copiedUntil, start));
String group = matcher.group();
output.append("&").append(group);
copiedUntil = matcher.end();
}
output.append(allRules.subSequence(copiedUntil, allRules.length()));
return output;
}
private static StringBuilder generate(List<Token> tokens) throws IOException {
StringBuilder result = new StringBuilder("h1. Contents\n").append("{toc:style=disc|indent=20px}");
Set<String> declaredSymbols = new HashSet<String>();
Set<String> usedSymbols = new HashSet<String>();
Multimap<String, String>
usages = Multimaps.newSetMultimap(Maps.<String, Collection<String>>newHashMap(), new Supplier<Set<String>>() {
@Override
public Set<String> get() {
return Sets.newHashSet();
}
});
Declaration lastDeclaration = null;
for (Token advance: tokens) {
if (advance instanceof Declaration) {
Declaration declaration = (Declaration) advance;
lastDeclaration = declaration;
declaredSymbols.add(declaration.getName());
}
else if (advance instanceof Identifier) {
Identifier identifier = (Identifier) advance;
assert lastDeclaration != null;
usages.put(identifier.getName(), lastDeclaration.getName());
usedSymbols.add(identifier.getName());
}
}
for (Token token : tokens) {
if (token instanceof Declaration) {
Declaration declaration = (Declaration) token;
result.append("{anchor:").append(declaration.getName()).append("}");
if (!usedSymbols.contains(declaration.getName())) {
// result.append("(!) *Unused!* ");
System.out.println("Unused: " + tokenWithPosition(token));
}
Collection<String> myUsages = usages.get(declaration.getName());
if (!myUsages.isEmpty()) {
result.append("\\[{color:grey}Used by ");
for (Iterator<String> iterator = myUsages.iterator(); iterator.hasNext(); ) {
String usage = iterator.next();
result.append("[#").append(usage).append("]");
if (iterator.hasNext()) {
result.append(", ");
}
}
result.append("{color}\\]\n");
}
result.append(token);
continue;
}
else if (token instanceof Identifier) {
Identifier identifier = (Identifier) token;
if (!declaredSymbols.contains(identifier.getName())) {
result.append("(!) *Undeclared!* ");
System.out.println("Undeclared: " + tokenWithPosition(token));
}
}
result.append(token);
}
return result;
}
private static String tokenWithPosition(Token token) {
return token + " at " + token.getFileName() + ":" + token.getLine();
}
private static List<Token> tokenize(_GrammarLexer grammarLexer) throws IOException {
List<Token> tokens = new ArrayList<Token>();
while (true) {
Token advance = grammarLexer.advance();
if (advance == null) {
break;
}
tokens.add(advance);
}
return tokens;
}
private static void copyToClipboard(StringBuilder result) {
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
clipboard.setContents(new StringSelection(result.toString()), new ClipboardOwner() {
@Override
public void lostOwnership(Clipboard clipboard, Transferable contents) {
}
});
}
}
@@ -1,35 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class Declaration extends Token {
private final String name;
public Declaration(CharSequence text, String fileName, int line) {
super(text, fileName, line);
name = text.toString().substring(1);
}
@Override
public String toString() {
return "*" + name + "*";
}
public String getName() {
return name;
}
}
@@ -1,29 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class DocComment extends Token {
public DocComment(CharSequence text, String fileName, int line) {
super(text, fileName, line);
}
@Override
public String toString() {
String s = super.toString();
return s.substring(3, s.length() - 2);
}
}
@@ -1,120 +0,0 @@
/* It's an automatically generated code. Do not modify it. */
package org.jetbrains.kotlin.grammar;
//import com.intellij.lexer.*;
//import com.intellij.psi.*;
//import com.intellij.psi.tree.IElementType;
//import org.jetbrains.kotlin.lexer.JetTokens;
%%
%unicode
%class _GrammarLexer
%{
private String fileName;
public void setFileName(String fileName) {
this.fileName = fileName;
}
private int line = 1;
public int getCurrentLine() {
return line;
}
private void computeLine() {
CharSequence s = yytext();
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == '\n') line++;
}
}
%}
%function advance
%type Token
%eof{ return;
%eof}
DIGIT=[0-9]
HEX_DIGIT=[0-9A-Fa-f]
WHITE_SPACE_CHAR=[\ \n\t\f]
// TODO: prohibit '$' in identifiers?
PLAIN_IDENTIFIER=[:jletter:] [:jletterdigit:]*
// TODO: this one MUST allow everything accepted by the runtime
// TODO: Replace backticks by one backslash in the begining
ESCAPED_IDENTIFIER = `{PLAIN_IDENTIFIER}`
IDENTIFIER = {PLAIN_IDENTIFIER}|{ESCAPED_IDENTIFIER}
DECLARATION_IDENTIFIER = "&" {PLAIN_IDENTIFIER}
FIELD_IDENTIFIER = \${IDENTIFIER}
LABEL_IDENTIFIER = \@{IDENTIFIER}
BLOCK_COMMENT=("/*"[^"*"]{COMMENT_TAIL})|"/*"
// TODO: Wiki markup for doc comments?
DOC_COMMENT="/*""*"+("/"|([^"/""*"]{COMMENT_TAIL}))?
COMMENT_TAIL=([^"*"]*("*"+[^"*""/"])?)*("*"+"/")?
EOL_COMMENT="/""/"[^\n]*
INTEGER_LITERAL={DECIMAL_INTEGER_LITERAL}|{HEX_INTEGER_LITERAL}|{BIN_INTEGER_LITERAL}
DECIMAL_INTEGER_LITERAL=(0|([1-9]({DIGIT})*))
HEX_INTEGER_LITERAL=0[Xx]({HEX_DIGIT})*
BIN_INTEGER_LITERAL=0[Bb]({DIGIT})*
LONG_LITERAL=({INTEGER_LITERAL})[Ll]
//FLOAT_LITERAL=(({FLOATING_POINT_LITERAL1})[Ff])|(({FLOATING_POINT_LITERAL2})[Ff])|(({FLOATING_POINT_LITERAL3})[Ff])|(({FLOATING_POINT_LITERAL4})[Ff])
//DOUBLE_LITERAL=(({FLOATING_POINT_LITERAL1})[Dd]?)|(({FLOATING_POINT_LITERAL2})[Dd]?)|(({FLOATING_POINT_LITERAL3})[Dd]?)|(({FLOATING_POINT_LITERAL4})[Dd])
DOUBLE_LITERAL={FLOATING_POINT_LITERAL1}|{FLOATING_POINT_LITERAL2}|{FLOATING_POINT_LITERAL3}|{FLOATING_POINT_LITERAL4}
FLOATING_POINT_LITERAL1=({DIGIT})+"."({DIGIT})+({EXPONENT_PART})?
FLOATING_POINT_LITERAL2="."({DIGIT})+({EXPONENT_PART})?
FLOATING_POINT_LITERAL3=({DIGIT})+({EXPONENT_PART})
FLOATING_POINT_LITERAL4=({DIGIT})+
EXPONENT_PART=[Ee]["+""-"]?({DIGIT})*
HEX_FLOAT_LITERAL={HEX_SIGNIFICAND}{BINARY_EXPONENT}[Ff]
//HEX_DOUBLE_LITERAL={HEX_SIGNIFICAND}{BINARY_EXPONENT}[Dd]?
HEX_DOUBLE_LITERAL={HEX_SIGNIFICAND}{BINARY_EXPONENT}?
BINARY_EXPONENT=[Pp][+-]?{DIGIT}+
HEX_SIGNIFICAND={HEX_INTEGER_LITERAL}|0[Xx]{HEX_DIGIT}*\.{HEX_DIGIT}+
//HEX_SIGNIFICAND={HEX_INTEGER_LITERAL}|{HEX_INTEGER_LITERAL}\.|0[Xx]{HEX_DIGIT}*\.{HEX_DIGIT}+
CHARACTER_LITERAL="'"([^\\\'\n]|{ESCAPE_SEQUENCE})*("'"|\\)?
// TODO: introduce symbols (e.g. 'foo) as another way to write string literals
STRING_LITERAL=\"([^\\\"\n]|{ESCAPE_SEQUENCE})*(\"|\\)?
ANGLE_STRING_LITERAL=\<([^\\\>\n])*(\>|\\)?
ESCAPE_SEQUENCE=\\[^\n]
// ANY_ESCAPE_SEQUENCE = \\[^]
THREE_QUO = (\"\"\")
ONE_TWO_QUO = (\"[^\"]) | (\"\"[^\"])
QUO_STRING_CHAR = [^\"] | {ONE_TWO_QUO}
RAW_STRING_LITERAL = {THREE_QUO} {QUO_STRING_CHAR}* {THREE_QUO}?
%%
<YYINITIAL> {BLOCK_COMMENT} { computeLine(); return new Comment(yytext(), fileName, line); }
<YYINITIAL> {DOC_COMMENT} { computeLine(); return new DocComment(yytext(), fileName, line); }
<YYINITIAL> ({WHITE_SPACE_CHAR})+ { computeLine(); return new WhiteSpace(yytext(), fileName, line); }
<YYINITIAL> {EOL_COMMENT} { computeLine(); return new Comment(yytext(), fileName, line); }
<YYINITIAL> {STRING_LITERAL} { return new StringToken(yytext(), fileName, line); }
<YYINITIAL> {ANGLE_STRING_LITERAL} { return new StringToken(yytext(), fileName, line); }
<YYINITIAL> {IDENTIFIER} { return new Identifier(yytext(), fileName, line); }
<YYINITIAL> "[" {IDENTIFIER} "]" { return new Annotation(yytext(), fileName, line); }
<YYINITIAL> {DECLARATION_IDENTIFIER} { return new Declaration(yytext(), fileName, line); }
<YYINITIAL> ":" { return new SymbolToken(yytext(), fileName, line); }
<YYINITIAL> "{" { return new SymbolToken("\\" + yytext(), fileName, line); }
<YYINITIAL> "}" { return new SymbolToken("\\" + yytext(), fileName, line); }
<YYINITIAL> "[" { return new SymbolToken("\\" + yytext(), fileName, line); }
<YYINITIAL> "]" { return new SymbolToken("\\" + yytext(), fileName, line); }
<YYINITIAL> "(" { return new SymbolToken("\\" + yytext(), fileName, line); }
<YYINITIAL> ")" { return new SymbolToken("\\" + yytext(), fileName, line); }
<YYINITIAL> "*" { return new SymbolToken(yytext(), fileName, line); }
<YYINITIAL> "+" { return new SymbolToken(yytext(), fileName, line); }
<YYINITIAL> "?" { return new SymbolToken(yytext(), fileName, line); }
<YYINITIAL> "|" { return new SymbolToken(yytext(), fileName, line); }
<YYINITIAL> "-" { return new SymbolToken(yytext(), fileName, line); }
<YYINITIAL> "." { return new SymbolToken(yytext(), fileName, line); }
<YYINITIAL> . { return new Other(yytext(), fileName, line); }
@@ -1,35 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class Identifier extends Token {
private final String name;
public Identifier(CharSequence text, String fileName, int line) {
super(text, fileName, line);
name = text.toString();
}
@Override
public String toString() {
return "[#" + getText() + "]";
}
public String getName() {
return name;
}
}
@@ -1,23 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class Other extends Token {
public Other(CharSequence text, String fileName, int line) {
super(text, fileName, line);
}
}
@@ -1,34 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class StringToken extends Token {
public StringToken(CharSequence text, String fileName, int line) {
super(text, fileName, line);
}
@Override
public String toString() {
return "{color:green}*{{" +
getText().toString()
.replaceAll("\\{", "\\\\{")
.replaceAll("\\[", "\\\\[")
.replaceAll("!", "\\\\!")
.replaceAll("\\*", "\\\\*")
+ "}}*{color}";
}
}
@@ -1,28 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class SymbolToken extends Token {
public SymbolToken(CharSequence text, String fileName, int line) {
super(text, fileName, line);
}
@Override
public String toString() {
return "{color:blue}*" + getText().toString().replaceAll("\\*", "\\\\*") + "*{color}";
}
}
@@ -1,46 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class Token {
private final String fileName;
private final CharSequence text;
private final int line;
public Token(CharSequence text, String fileName, int line) {
this.text = text;
this.fileName = fileName;
this.line = line;
}
public CharSequence getText() {
return text;
}
public String getFileName() {
return fileName;
}
public int getLine() {
return line;
}
@Override
public String toString() {
return getText().toString();
}
}
@@ -1,28 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed 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.jetbrains.kotlin.grammar;
public class WhiteSpace extends Token {
public WhiteSpace(CharSequence text, String fileName, int line) {
super(text, fileName, line);
}
@Override
public String toString() {
return super.toString().replaceAll(" ", "&nbsp;");
}
}
@@ -1,636 +0,0 @@
/* The following code was generated by JFlex 1.4.3 on 1/3/15 1:59 PM */
/* It's an automatically generated code. Do not modify it. */
package org.jetbrains.kotlin.grammar;
//import com.intellij.lexer.*;
//import com.intellij.psi.*;
//import com.intellij.psi.tree.IElementType;
//import org.jetbrains.kotlin.lexer.JetTokens;
/**
* This class is a scanner generated by
* <a href="http://www.jflex.de/">JFlex</a> 1.4.3
* on 1/3/15 1:59 PM from the specification file
* <tt>/Users/udalov/kotlin/grammar/src/org/jetbrains/kotlin/grammar/Grammar.flex</tt>
*/
class _GrammarLexer {
/** initial size of the lookahead buffer */
private static final int ZZ_BUFFERSIZE = 16384;
/** lexical states */
public static final int YYINITIAL = 0;
/**
* ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l
* ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l
* at the beginning of a line
* l is of the form l = 2*k, k a non negative integer
*/
private static final int ZZ_LEXSTATE[] = {
0, 0
};
/**
* Translates characters to character classes
*/
private static final String ZZ_CMAP_PACKED =
"\11\1\1\3\1\10\1\0\1\3\1\0\16\1\4\0\1\3\1\0"+
"\1\13\1\0\1\2\1\0\1\5\1\0\1\20\1\20\1\7\1\11"+
"\1\0\1\11\1\11\1\6\1\1\11\1\1\11\1\0\1\14\1\0"+
"\1\15\1\11\1\0\1\2\1\2\2\2\1\2\1\2\5\2\1\2"+
"\3\2\1\2\7\2\1\2\2\2\1\16\1\12\1\17\1\0\1\2"+
"\1\4\1\2\1\2\2\2\1\2\1\2\5\2\1\2\3\2\1\2"+
"\7\2\1\2\2\2\1\20\1\11\1\20\1\0\41\1\2\0\4\2"+
"\4\0\1\2\2\0\1\1\7\0\1\2\4\0\1\2\5\0\27\2"+
"\1\0\37\2\1\0\u013f\2\31\0\162\2\4\0\14\2\16\0\5\2"+
"\11\0\1\2\21\0\130\1\5\0\23\1\12\0\1\2\13\0\1\2"+
"\1\0\3\2\1\0\1\2\1\0\24\2\1\0\54\2\1\0\46\2"+
"\1\0\5\2\4\0\202\2\1\0\4\1\3\0\105\2\1\0\46\2"+
"\2\0\2\2\6\0\20\2\41\0\46\2\2\0\1\2\7\0\47\2"+
"\11\0\21\1\1\0\27\1\1\0\3\1\1\0\1\1\1\0\2\1"+
"\1\0\1\1\13\0\33\2\5\0\3\2\15\0\4\1\14\0\6\1"+
"\13\0\32\2\5\0\13\2\16\1\7\0\12\1\4\0\2\2\1\1"+
"\143\2\1\0\1\2\10\1\1\0\6\1\2\2\2\1\1\0\4\1"+
"\2\2\12\1\3\2\2\0\1\2\17\0\1\1\1\2\1\1\36\2"+
"\33\1\2\0\3\2\60\0\46\2\13\1\1\2\u014f\0\3\1\66\2"+
"\2\0\1\1\1\2\20\1\2\0\1\2\4\1\3\0\12\2\2\1"+
"\2\0\12\1\21\0\3\1\1\0\10\2\2\0\2\2\2\0\26\2"+
"\1\0\7\2\1\0\1\2\3\0\4\2\2\0\1\1\1\2\7\1"+
"\2\0\2\1\2\0\3\1\11\0\1\1\4\0\2\2\1\0\3\2"+
"\2\1\2\0\12\1\4\2\15\0\3\1\1\0\6\2\4\0\2\2"+
"\2\0\26\2\1\0\7\2\1\0\2\2\1\0\2\2\1\0\2\2"+
"\2\0\1\1\1\0\5\1\4\0\2\1\2\0\3\1\13\0\4\2"+
"\1\0\1\2\7\0\14\1\3\2\14\0\3\1\1\0\11\2\1\0"+
"\3\2\1\0\26\2\1\0\7\2\1\0\2\2\1\0\5\2\2\0"+
"\1\1\1\2\10\1\1\0\3\1\1\0\3\1\2\0\1\2\17\0"+
"\2\2\2\1\2\0\12\1\1\0\1\2\17\0\3\1\1\0\10\2"+
"\2\0\2\2\2\0\26\2\1\0\7\2\1\0\2\2\1\0\5\2"+
"\2\0\1\1\1\2\6\1\3\0\2\1\2\0\3\1\10\0\2\1"+
"\4\0\2\2\1\0\3\2\4\0\12\1\1\0\1\2\20\0\1\1"+
"\1\2\1\0\6\2\3\0\3\2\1\0\4\2\3\0\2\2\1\0"+
"\1\2\1\0\2\2\3\0\2\2\3\0\3\2\3\0\10\2\1\0"+
"\3\2\4\0\5\1\3\0\3\1\1\0\4\1\11\0\1\1\17\0"+
"\11\1\11\0\1\2\7\0\3\1\1\0\10\2\1\0\3\2\1\0"+
"\27\2\1\0\12\2\1\0\5\2\4\0\7\1\1\0\3\1\1\0"+
"\4\1\7\0\2\1\11\0\2\2\4\0\12\1\22\0\2\1\1\0"+
"\10\2\1\0\3\2\1\0\27\2\1\0\12\2\1\0\5\2\2\0"+
"\1\1\1\2\7\1\1\0\3\1\1\0\4\1\7\0\2\1\7\0"+
"\1\2\1\0\2\2\4\0\12\1\22\0\2\1\1\0\10\2\1\0"+
"\3\2\1\0\27\2\1\0\20\2\4\0\6\1\2\0\3\1\1\0"+
"\4\1\11\0\1\1\10\0\2\2\4\0\12\1\22\0\2\1\1\0"+
"\22\2\3\0\30\2\1\0\11\2\1\0\1\2\2\0\7\2\3\0"+
"\1\1\4\0\6\1\1\0\1\1\1\0\10\1\22\0\2\1\15\0"+
"\60\2\1\1\2\2\7\1\4\0\10\2\10\1\1\0\12\1\47\0"+
"\2\2\1\0\1\2\2\0\2\2\1\0\1\2\2\0\1\2\6\0"+
"\4\2\1\0\7\2\1\0\3\2\1\0\1\2\1\0\1\2\2\0"+
"\2\2\1\0\4\2\1\1\2\2\6\1\1\0\2\1\1\2\2\0"+
"\5\2\1\0\1\2\1\0\6\1\2\0\12\1\2\0\2\2\42\0"+
"\1\2\27\0\2\1\6\0\12\1\13\0\1\1\1\0\1\1\1\0"+
"\1\1\4\0\2\1\10\2\1\0\42\2\6\0\24\1\1\0\2\1"+
"\4\2\4\0\10\1\1\0\44\1\11\0\1\1\71\0\42\2\1\0"+
"\5\2\1\0\2\2\1\0\7\1\3\0\4\1\6\0\12\1\6\0"+
"\6\2\4\1\106\0\46\2\12\0\51\2\7\0\132\2\5\0\104\2"+
"\5\0\122\2\6\0\7\2\1\0\77\2\1\0\1\2\1\0\4\2"+
"\2\0\7\2\1\0\1\2\1\0\4\2\2\0\47\2\1\0\1\2"+
"\1\0\4\2\2\0\37\2\1\0\1\2\1\0\4\2\2\0\7\2"+
"\1\0\1\2\1\0\4\2\2\0\7\2\1\0\7\2\1\0\27\2"+
"\1\0\37\2\1\0\1\2\1\0\4\2\2\0\7\2\1\0\47\2"+
"\1\0\23\2\16\0\11\1\56\0\125\2\14\0\u026c\2\2\0\10\2"+
"\12\0\32\2\5\0\113\2\3\0\3\2\17\0\15\2\1\0\4\2"+
"\3\1\13\0\22\2\3\1\13\0\22\2\2\1\14\0\15\2\1\0"+
"\3\2\1\0\2\1\14\0\64\2\40\1\3\0\1\2\3\0\2\2"+
"\1\1\2\0\12\1\41\0\3\1\2\0\12\1\6\0\130\2\10\0"+
"\51\2\1\1\126\0\35\2\3\0\14\1\4\0\14\1\12\0\12\1"+
"\36\2\2\0\5\2\u038b\0\154\2\224\0\234\2\4\0\132\2\6\0"+
"\26\2\2\0\6\2\2\0\46\2\2\0\6\2\2\0\10\2\1\0"+
"\1\2\1\0\1\2\1\0\1\2\1\0\37\2\2\0\65\2\1\0"+
"\7\2\1\0\1\2\3\0\3\2\1\0\7\2\3\0\4\2\2\0"+
"\6\2\4\0\15\2\5\0\3\2\1\0\7\2\17\0\4\1\32\0"+
"\5\1\20\0\2\2\23\0\1\2\13\0\4\1\6\0\6\1\1\0"+
"\1\2\15\0\1\2\40\0\22\2\36\0\15\1\4\0\1\1\3\0"+
"\6\1\27\0\1\2\4\0\1\2\2\0\12\2\1\0\1\2\3\0"+
"\5\2\6\0\1\2\1\0\1\2\1\0\1\2\1\0\4\2\1\0"+
"\3\2\1\0\7\2\3\0\3\2\5\0\5\2\26\0\44\2\u0e81\0"+
"\3\2\31\0\11\2\6\1\1\0\5\2\2\0\5\2\4\0\126\2"+
"\2\0\2\1\2\0\3\2\1\0\137\2\5\0\50\2\4\0\136\2"+
"\21\0\30\2\70\0\20\2\u0200\0\u19b6\2\112\0\u51a6\2\132\0\u048d\2"+
"\u0773\0\u2ba4\2\u215c\0\u012e\2\2\0\73\2\225\0\7\2\14\0\5\2"+
"\5\0\1\2\1\1\12\2\1\0\15\2\1\0\5\2\1\0\1\2"+
"\1\0\2\2\1\0\2\2\1\0\154\2\41\0\u016b\2\22\0\100\2"+
"\2\0\66\2\50\0\15\2\3\0\20\1\20\0\4\1\17\0\2\2"+
"\30\0\3\2\31\0\1\2\6\0\5\2\1\0\207\2\2\0\1\1"+
"\4\0\1\2\13\0\12\1\7\0\32\2\4\0\1\2\1\0\32\2"+
"\12\0\132\2\3\0\6\2\2\0\6\2\2\0\6\2\2\0\3\2"+
"\3\0\2\2\3\0\2\2\22\0\3\1\4\0";
/**
* Translates characters to character classes
*/
private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED);
/**
* Translates DFA states to action switch labels.
*/
private static final int [] ZZ_ACTION = zzUnpackAction();
private static final String ZZ_ACTION_PACKED_0 =
"\1\0\1\1\1\2\1\3\3\1\1\4\2\5\2\6"+
"\1\0\1\7\2\10\2\5\2\0\1\2\1\10\1\11"+
"\1\12\2\0\2\11\1\0\1\10\1\0";
private static int [] zzUnpackAction() {
int [] result = new int[31];
int offset = 0;
offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
return result;
}
private static int zzUnpackAction(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int count = packed.charAt(i++);
int value = packed.charAt(i++);
do result[j++] = value; while (--count > 0);
}
return j;
}
/**
* Translates a state to a row index in the transition table
*/
private static final int [] ZZ_ROWMAP = zzUnpackRowMap();
private static final String ZZ_ROWMAP_PACKED_0 =
"\0\0\0\21\0\42\0\63\0\104\0\125\0\146\0\21"+
"\0\167\0\210\0\231\0\21\0\252\0\273\0\314\0\335"+
"\0\356\0\21\0\377\0\u0110\0\21\0\u0121\0\u0132\0\21"+
"\0\u0143\0\u0154\0\u0165\0\21\0\u0176\0\21\0\u0187";
private static int [] zzUnpackRowMap() {
int [] result = new int[31];
int offset = 0;
offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
return result;
}
private static int zzUnpackRowMap(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int high = packed.charAt(i++) << 16;
result[j++] = high | packed.charAt(i++);
}
return j;
}
/**
* The transition table of the DFA
*/
private static final int [] ZZ_TRANS = zzUnpackTrans();
private static final String ZZ_TRANS_PACKED_0 =
"\2\2\1\3\1\4\1\5\1\6\1\7\1\10\1\4"+
"\1\10\1\2\1\11\1\12\1\2\1\13\2\14\22\0"+
"\2\3\21\0\1\4\4\0\1\4\12\0\1\15\20\0"+
"\1\16\24\0\1\17\1\20\11\0\10\11\1\0\1\11"+
"\1\21\1\22\5\11\10\12\1\0\1\12\1\22\2\12"+
"\1\22\3\12\2\0\1\23\1\0\1\24\15\0\2\15"+
"\1\0\1\25\15\0\2\16\16\0\10\17\1\0\10\17"+
"\7\26\1\27\11\26\10\11\1\0\10\11\1\0\2\23"+
"\14\0\1\30\3\0\1\31\16\0\7\26\1\32\11\26"+
"\6\33\1\34\1\27\11\33\1\0\2\31\1\0\1\35"+
"\14\0\6\26\1\36\1\32\11\26\7\33\1\37\11\33"+
"\17\0\1\30\1\0\6\33\1\34\1\37\11\33";
private static int [] zzUnpackTrans() {
int [] result = new int[408];
int offset = 0;
offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result);
return result;
}
private static int zzUnpackTrans(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int count = packed.charAt(i++);
int value = packed.charAt(i++);
value--;
do result[j++] = value; while (--count > 0);
}
return j;
}
/* error codes */
private static final int ZZ_UNKNOWN_ERROR = 0;
private static final int ZZ_NO_MATCH = 1;
private static final int ZZ_PUSHBACK_2BIG = 2;
private static final char[] EMPTY_BUFFER = new char[0];
private static final int YYEOF = -1;
private static java.io.Reader zzReader = null; // Fake
/* error messages for the codes above */
private static final String ZZ_ERROR_MSG[] = {
"Unkown internal scanner error",
"Error: could not match input",
"Error: pushback value was too large"
};
/**
* ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
*/
private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();
private static final String ZZ_ATTRIBUTE_PACKED_0 =
"\1\0\1\11\5\1\1\11\3\1\1\11\1\0\4\1"+
"\1\11\2\0\1\11\2\1\1\11\2\0\1\1\1\11"+
"\1\0\1\11\1\0";
private static int [] zzUnpackAttribute() {
int [] result = new int[31];
int offset = 0;
offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
return result;
}
private static int zzUnpackAttribute(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int count = packed.charAt(i++);
int value = packed.charAt(i++);
do result[j++] = value; while (--count > 0);
}
return j;
}
/** the current state of the DFA */
private int zzState;
/** the current lexical state */
private int zzLexicalState = YYINITIAL;
/** this buffer contains the current text to be matched and is
the source of the yytext() string */
private CharSequence zzBuffer = "";
/** this buffer may contains the current text array to be matched when it is cheap to acquire it */
private char[] zzBufferArray;
/** the textposition at the last accepting state */
private int zzMarkedPos;
/** the textposition at the last state to be included in yytext */
private int zzPushbackPos;
/** the current text position in the buffer */
private int zzCurrentPos;
/** startRead marks the beginning of the yytext() string in the buffer */
private int zzStartRead;
/** endRead marks the last character in the buffer, that has been read
from input */
private int zzEndRead;
/**
* zzAtBOL == true <=> the scanner is currently at the beginning of a line
*/
private boolean zzAtBOL = true;
/** zzAtEOF == true <=> the scanner is at the EOF */
private boolean zzAtEOF;
/** denotes if the user-EOF-code has already been executed */
private boolean zzEOFDone;
/* user code: */
private String fileName;
public void setFileName(String fileName) {
this.fileName = fileName;
}
private int line = 1;
public int getCurrentLine() {
return line;
}
private void computeLine() {
CharSequence s = yytext();
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == '\n') line++;
}
}
_GrammarLexer(java.io.Reader in) {
this.zzReader = in;
}
/**
* Creates a new scanner.
* There is also java.io.Reader version of this constructor.
*
* @param in the java.io.Inputstream to read input from.
*/
_GrammarLexer(java.io.InputStream in) {
this(new java.io.InputStreamReader(in));
}
/**
* Unpacks the compressed character translation table.
*
* @param packed the packed character translation table
* @return the unpacked character translation table
*/
private static char [] zzUnpackCMap(String packed) {
char [] map = new char[0x10000];
int i = 0; /* index in packed string */
int j = 0; /* index in unpacked array */
while (i < 1754) {
int count = packed.charAt(i++);
char value = packed.charAt(i++);
do map[j++] = value; while (--count > 0);
}
return map;
}
public final int getTokenStart(){
return zzStartRead;
}
public final int getTokenEnd(){
return getTokenStart() + yylength();
}
public void reset(CharSequence buffer, int start, int end,int initialState){
zzBuffer = buffer;
zzBufferArray = com.intellij.util.text.CharArrayUtil.fromSequenceWithoutCopying(buffer);
zzCurrentPos = zzMarkedPos = zzStartRead = start;
zzPushbackPos = 0;
zzAtEOF = false;
zzAtBOL = true;
zzEndRead = end;
yybegin(initialState);
}
/**
* Refills the input buffer.
*
* @return <code>false</code>, iff there was new input.
*
* @exception java.io.IOException if any I/O-Error occurs
*/
private boolean zzRefill() throws java.io.IOException {
return true;
}
/**
* Returns the current lexical state.
*/
public final int yystate() {
return zzLexicalState;
}
/**
* Enters a new lexical state
*
* @param newState the new lexical state
*/
public final void yybegin(int newState) {
zzLexicalState = newState;
}
/**
* Returns the text matched by the current regular expression.
*/
public final CharSequence yytext() {
return zzBuffer.subSequence(zzStartRead, zzMarkedPos);
}
/**
* Returns the character at position <tt>pos</tt> from the
* matched text.
*
* It is equivalent to yytext().charAt(pos), but faster
*
* @param pos the position of the character to fetch.
* A value from 0 to yylength()-1.
*
* @return the character at position pos
*/
public final char yycharat(int pos) {
return zzBufferArray != null ? zzBufferArray[zzStartRead+pos]:zzBuffer.charAt(zzStartRead+pos);
}
/**
* Returns the length of the matched text region.
*/
public final int yylength() {
return zzMarkedPos-zzStartRead;
}
/**
* Reports an error that occured while scanning.
*
* In a wellformed scanner (no or only correct usage of
* yypushback(int) and a match-all fallback rule) this method
* will only be called with things that "Can't Possibly Happen".
* If this method is called, something is seriously wrong
* (e.g. a JFlex bug producing a faulty scanner etc.).
*
* Usual syntax/scanner level error handling should be done
* in error fallback rules.
*
* @param errorCode the code of the errormessage to display
*/
private void zzScanError(int errorCode) {
String message;
try {
message = ZZ_ERROR_MSG[errorCode];
}
catch (ArrayIndexOutOfBoundsException e) {
message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR];
}
throw new Error(message);
}
/**
* Pushes the specified amount of characters back into the input stream.
*
* They will be read again by then next call of the scanning method
*
* @param number the number of characters to be read again.
* This number must not be greater than yylength()!
*/
public void yypushback(int number) {
if ( number > yylength() )
zzScanError(ZZ_PUSHBACK_2BIG);
zzMarkedPos -= number;
}
/**
* Contains user EOF-code, which will be executed exactly once,
* when the end of file is reached
*/
private void zzDoEOF() {
if (!zzEOFDone) {
zzEOFDone = true;
}
}
/**
* Resumes scanning until the next regular expression is matched,
* the end of input is encountered or an I/O-Error occurs.
*
* @return the next token
* @exception java.io.IOException if any I/O-Error occurs
*/
public Token advance() throws java.io.IOException {
int zzInput;
int zzAction;
// cached fields:
int zzCurrentPosL;
int zzMarkedPosL;
int zzEndReadL = zzEndRead;
CharSequence zzBufferL = zzBuffer;
char[] zzBufferArrayL = zzBufferArray;
char [] zzCMapL = ZZ_CMAP;
int [] zzTransL = ZZ_TRANS;
int [] zzRowMapL = ZZ_ROWMAP;
int [] zzAttrL = ZZ_ATTRIBUTE;
while (true) {
zzMarkedPosL = zzMarkedPos;
zzAction = -1;
zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;
zzState = ZZ_LEXSTATE[zzLexicalState];
zzForAction: {
while (true) {
if (zzCurrentPosL < zzEndReadL)
zzInput = (zzBufferArrayL != null ? zzBufferArrayL[zzCurrentPosL++] : zzBufferL.charAt(zzCurrentPosL++));
else if (zzAtEOF) {
zzInput = YYEOF;
break zzForAction;
}
else {
// store back cached positions
zzCurrentPos = zzCurrentPosL;
zzMarkedPos = zzMarkedPosL;
boolean eof = zzRefill();
// get translated positions and possibly new buffer
zzCurrentPosL = zzCurrentPos;
zzMarkedPosL = zzMarkedPos;
zzBufferL = zzBuffer;
zzEndReadL = zzEndRead;
if (eof) {
zzInput = YYEOF;
break zzForAction;
}
else {
zzInput = (zzBufferArrayL != null ? zzBufferArrayL[zzCurrentPosL++] : zzBufferL.charAt(zzCurrentPosL++));
}
}
int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
if (zzNext == -1) break zzForAction;
zzState = zzNext;
int zzAttributes = zzAttrL[zzState];
if ( (zzAttributes & 1) == 1 ) {
zzAction = zzState;
zzMarkedPosL = zzCurrentPosL;
if ( (zzAttributes & 8) == 8 ) break zzForAction;
}
}
}
// store back cached position
zzMarkedPos = zzMarkedPosL;
switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
case 7:
{ return new Declaration(yytext(), fileName, line);
}
case 11: break;
case 4:
{ return new SymbolToken(yytext(), fileName, line);
}
case 12: break;
case 6:
{ return new SymbolToken("\\" + yytext(), fileName, line);
}
case 13: break;
case 3:
{ computeLine(); return new WhiteSpace(yytext(), fileName, line);
}
case 14: break;
case 9:
{ computeLine(); return new DocComment(yytext(), fileName, line);
}
case 15: break;
case 1:
{ return new Other(yytext(), fileName, line);
}
case 16: break;
case 10:
{ return new Annotation(yytext(), fileName, line);
}
case 17: break;
case 8:
{ computeLine(); return new Comment(yytext(), fileName, line);
}
case 18: break;
case 2:
{ return new Identifier(yytext(), fileName, line);
}
case 19: break;
case 5:
{ return new StringToken(yytext(), fileName, line);
}
case 20: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
zzDoEOF();
return null;
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}