| /* 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); |
| } |
| } |
| } |
| } |
| |
| |
| } |