/* The following code was generated by JFlex 1.4.3 on 5/24/14 1:11 AM */
/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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 com.android.tools.idea.lang.proguard.grammar;
import com.android.tools.idea.lang.proguard.psi.ProguardTypes;
import com.intellij.lexer.FlexLexer;
import com.intellij.psi.tree.IElementType;
import com.intellij.psi.TokenType;
/** A lexer for ProGuard files generated from Proguard.flex using JFlex. */
class _ProguardLexer implements FlexLexer {
/** initial size of the lookahead buffer */
private static final int ZZ_BUFFERSIZE = 16384;
/** lexical states */
public static final int YYINITIAL = 0;
public static final int STATE_FLAG_ARG = 4;
public static final int STATE_JAVA_SECTION = 2;
/**
* 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, 1, 1, 2, 2
};
/**
* Translates characters to character classes
*/
private static final String ZZ_CMAP_PACKED =
"\11\0\1\3\1\2\1\0\1\3\1\2\22\0\1\1\2\0\1\7"+
"\11\0\1\4\2\0\12\5\1\0\1\11\5\0\32\5\4\0\1\5"+
"\1\0\32\5\1\6\1\0\1\10\uff82\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 =
"\3\0\1\1\1\2\1\3\1\2\1\1\1\4\1\1"+
"\2\2\1\5\1\6\1\2\1\7\1\6\1\10\1\11"+
"\1\0\1\12";
private static int [] zzUnpackAction() {
int [] result = new int[21];
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\12\0\24\0\36\0\50\0\62\0\74\0\106"+
"\0\120\0\132\0\144\0\156\0\36\0\170\0\202\0\214"+
"\0\226\0\36\0\106\0\132\0\132";
private static int [] zzUnpackRowMap() {
int [] result = new int[21];
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 =
"\1\4\1\5\1\6\1\7\1\10\2\4\1\11\2\4"+
"\1\12\1\13\1\6\1\14\3\12\1\11\1\15\1\12"+
"\1\16\1\17\1\20\1\21\2\16\1\22\1\11\2\16"+
"\13\0\1\5\1\6\1\7\10\0\1\6\10\0\1\7"+
"\1\0\1\7\13\0\1\23\4\0\2\11\1\0\7\11"+
"\2\24\1\0\4\24\2\0\1\25\1\24\1\13\1\6"+
"\1\14\3\24\2\0\1\25\1\24\1\14\1\0\1\14"+
"\3\24\2\0\1\25\1\16\2\0\3\16\2\0\2\16"+
"\1\0\1\17\1\20\1\7\10\0\1\20\7\0\1\16"+
"\1\7\1\0\1\21\2\16\2\0\2\16";
private static int [] zzUnpackTrans() {
int [] result = new int[160];
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 =
"\3\0\1\11\10\1\1\11\4\1\1\11\1\1\1\0"+
"\1\1";
private static int [] zzUnpackAttribute() {
int [] result = new int[21];
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;
_ProguardLexer(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.
*/
_ProguardLexer(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 < 52) {
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;
return;
}
}
/**
* 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 IElementType 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 4:
{ return ProguardTypes.LINE_CMT;
}
case 11: break;
case 8:
{ yybegin(STATE_JAVA_SECTION); return ProguardTypes.OPEN_BRACE;
}
case 12: break;
case 9:
{ yybegin(STATE_FLAG_ARG); return ProguardTypes.FLAG_NAME;
}
case 13: break;
case 5:
{ yybegin(YYINITIAL); return ProguardTypes.CLOSE_BRACE;
}
case 14: break;
case 3:
{ return ProguardTypes.CRLF;
}
case 15: break;
case 10:
{ return ProguardTypes.JAVA_DECL;
}
case 16: break;
case 1:
{ return TokenType.BAD_CHARACTER;
}
case 17: break;
case 6:
{ return ProguardTypes.FLAG_ARG;
}
case 18: break;
case 2:
{ return TokenType.WHITE_SPACE;
}
case 19: break;
case 7:
{ yybegin(YYINITIAL); return ProguardTypes.CRLF;
}
case 20: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
zzDoEOF();
return null;
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}