com.Ostermiller.util.PropertiesLexer Maven / Gradle / Ivy
Go to download
Open source (GPL) Java utilities maintained by Stephen Ostermiller with help from many contributors.
The newest version!
/* The following code was generated by JFlex 1.4.1 on 21/01/08 9.43 */
/* PropertiesLexer.java is a generated file. You probably want to
* edit PropertiesLexer.lex to make changes. Use JFlex to generate it.
* To generate PropertiesLexer.java
* JFlex may be obtained from
* the JFlex website.
* JFlex 1.4 or later is required.
* Run:
* jflex PropertiesLexer.lex
* You will then have a file called PropertiesLexer.java
*/
/*
* Goes with UberProperties
* Copyright (C) 2002-2004 Stephen Ostermiller
* http://ostermiller.org/contact.pl?regarding=Java+Utilities
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* See COPYING.TXT for details.
*/
package com.Ostermiller.util;
import java.io.*;
/**
* PropertiesLexer is a Java Properties file lexer. Created with JFlex. An example of how it is used:
*
*
* PropertiesLexer shredder = new PropertiesLexer(System.in);
* PropertiesToken t;
* while ((t = shredder.getNextToken()) != null){
* System.out.println(t);
* }
*
*
*
* @see PropertiesToken
* @author Stephen Ostermiller http://ostermiller.org/contact.pl?regarding=Java+Utilities
* @since ostermillerutils 1.00.00
*/
class PropertiesLexer {
/** This character denotes the end of file */
private static final int YYEOF = -1;
/** initial size of the lookahead buffer */
private static final int ZZ_BUFFERSIZE = 16384;
/** lexical states */
private static final int SEPARATOR = 7;
private static final int DONE = 9;
private static final int MID_NAME = 5;
private static final int MID_NAME_NEW_LINE = 6;
private static final int VALUE = 8;
private static final int MID_VALUE = 7;
private static final int NAME_SPACE = 4;
private static final int YYINITIAL = 0;
private static final int WHITE_SPACE = 2;
private static final int LINE_END = 1;
private static final int NAME = 3;
/**
* Translates characters to character classes
*/
private static final char [] ZZ_CMAP = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 0, 1, 3, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 6, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 5, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/**
* Translates DFA states to action switch labels.
*/
private static final int [] ZZ_ACTION = zzUnpackAction();
private static final String ZZ_ACTION_PACKED_0 =
"\1\1\1\0\1\1\2\2\2\1\1\2\1\0\1\3"+
"\1\1\1\4\1\5\2\6\1\7\1\10\1\11\1\5"+
"\1\2\1\12\3\5\1\13\1\14\2\5\2\0\2\15"+
"\2\16\2\17";
private static int [] zzUnpackAction() {
int [] result = new int[36];
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\7\0\16\0\25\0\34\0\43\0\52\0\61"+
"\0\70\0\77\0\106\0\115\0\124\0\133\0\142\0\142"+
"\0\151\0\142\0\142\0\160\0\167\0\176\0\205\0\214"+
"\0\223\0\232\0\241\0\250\0\124\0\257\0\266\0\142"+
"\0\275\0\142\0\304\0\142";
private static int [] zzUnpackRowMap() {
int [] result = new int[36];
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\13\1\14\1\15\1\16\1\17\1\20\1\21\2\22"+
"\1\23\1\16\1\17\2\22\1\13\1\22\1\15\1\16"+
"\1\17\1\20\1\13\1\24\1\25\1\26\1\16\1\17"+
"\1\20\2\24\1\25\1\27\1\16\1\17\1\20\1\24"+
"\1\13\1\22\1\30\1\16\1\17\1\20\2\13\1\31"+
"\1\30\1\16\1\17\1\20\1\13\1\24\1\32\1\33"+
"\1\16\1\17\2\24\1\22\1\32\1\34\1\16\1\17"+
"\2\22\7\12\1\13\1\0\1\35\3\0\1\13\1\0"+
"\1\14\4\0\1\21\3\13\2\0\2\13\4\0\1\17"+
"\11\0\3\21\2\0\2\21\2\24\1\36\2\0\2\24"+
"\1\0\1\25\5\0\3\24\1\37\1\40\5\24\1\41"+
"\1\42\2\24\3\13\1\37\1\40\2\13\1\0\1\31"+
"\6\0\1\32\5\0\3\24\1\43\1\44\2\24\3\0"+
"\1\43\1\44\2\0\3\24\2\0\2\24\4\0\1\40"+
"\6\0\1\42\6\0\1\44\2\0";
private static int [] zzUnpackTrans() {
int [] result = new int[203];
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;
}
/**
* Per instance reference to the character map.
* This can be cloned and modified per instance if needed.
* It is initally set to the static value.
*/
private char [] zzcmap_instance = ZZ_CMAP;
/* 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;
/* 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 aState
*/
private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();
private static final String ZZ_ATTRIBUTE_PACKED_0 =
"\1\1\1\0\6\1\1\0\5\1\2\11\1\1\2\11"+
"\11\1\2\0\1\1\1\11\1\1\1\11\1\1\1\11";
private static int [] zzUnpackAttribute() {
int [] result = new int[36];
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 input device */
private java.io.Reader zzReader;
/** 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 char zzBuffer[] = new char[ZZ_BUFFERSIZE];
/** 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;
/** number of newlines encountered up to the start of the matched text */
private int yyline;
/** the number of characters up to the start of the matched text */
private int yychar;
/**
* the number of characters from the last newline up to the start of the
* matched text
*/
private int yycolumn;
/**
* 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;
/* user code: */
private int lastToken;
private int nextState=YYINITIAL;
/**
* Prints out tokens from a file or System.in.
* If no arguments are given, System.in will be used for input.
* If more arguments are given, the first argument will be used as
* the name of the file to use as input
*
* @param args program arguments, of which the first is a filename
*
* @since ostermillerutils 1.00.00
*/
public static void main(String[] args) {
InputStream in;
try {
if (args.length > 0){
File f = new File(args[0]);
if (f.exists()){
if (f.canRead()){
in = new FileInputStream(f);
} else {
throw new IOException("Could not open " + args[0]);
}
} else {
throw new IOException("Could not find " + args[0]);
}
} else {
in = System.in;
}
PropertiesLexer shredder = new PropertiesLexer(in);
PropertiesToken t;
while ((t = shredder.getNextToken()) != null) {
if (true || t.getID() != PropertiesToken.WHITE_SPACE){
System.out.println(t);
}
}
} catch (IOException e){
System.err.println(e.getMessage());
}
}
/**
* Return the next token from the properties.
*
* @return the next token
* @throws IOException if an error occurs while reading the properties.
*/
public PropertiesToken getNextToken() throws IOException {
return getToken();
}
/**
* Creates a new scanner
* There is also a java.io.InputStream version of this constructor.
*
* @param in the java.io.Reader to read input from.
*/
PropertiesLexer(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.
*/
PropertiesLexer(java.io.InputStream in) {
this(new java.io.InputStreamReader(in));
}
/**
* Refills the input buffer.
*
* @return false, iff there was new input.
*
* @exception java.io.IOException if any I/O-Error occurs
*/
private boolean zzRefill() throws java.io.IOException {
/* first: make room (if you can) */
if (zzStartRead > 0) {
System.arraycopy(zzBuffer, zzStartRead,
zzBuffer, 0,
zzEndRead-zzStartRead);
/* translate stored positions */
zzEndRead-= zzStartRead;
zzCurrentPos-= zzStartRead;
zzMarkedPos-= zzStartRead;
zzPushbackPos-= zzStartRead;
zzStartRead = 0;
}
/* is the buffer big enough? */
if (zzCurrentPos >= zzBuffer.length) {
/* if not: blow it up */
char newBuffer[] = new char[zzCurrentPos*2];
System.arraycopy(zzBuffer, 0, newBuffer, 0, zzBuffer.length);
zzBuffer = newBuffer;
}
/* finally: fill the buffer with new input */
int numRead = zzReader.read(zzBuffer, zzEndRead,
zzBuffer.length-zzEndRead);
if (numRead < 0) {
return true;
}
else {
zzEndRead+= numRead;
return false;
}
}
/**
* Closes the input stream.
*/
private final void yyclose() throws java.io.IOException {
zzAtEOF = true; /* indicate end of file */
zzEndRead = zzStartRead; /* invalidate buffer */
if (zzReader != null)
zzReader.close();
}
/**
* Resets the scanner to read from a new input stream.
* Does not close the old reader.
*
* All internal variables are reset, the old input stream
* cannot be reused (internal buffer is discarded and lost).
* Lexical state is set to ZZ_INITIAL.
*
* @param reader the new input stream
*/
private final void yyreset(java.io.Reader reader) {
zzReader = reader;
zzAtBOL = true;
zzAtEOF = false;
zzEndRead = zzStartRead = 0;
zzCurrentPos = zzMarkedPos = zzPushbackPos = 0;
yyline = yychar = yycolumn = 0;
zzLexicalState = YYINITIAL;
}
/**
* Returns the current lexical state.
*/
private final int yystate() {
return zzLexicalState;
}
/**
* Enters a new lexical state
*
* @param newState the new lexical state
*/
private final void yybegin(int newState) {
zzLexicalState = newState;
}
/**
* Returns the text matched by the current regular expression.
*/
private final String yytext() {
return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead );
}
/**
* Returns the character at position pos 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
*/
private final char yycharat(int pos) {
return zzBuffer[zzStartRead+pos];
}
/**
* Returns the length of the matched text region.
*/
private 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()!
*/
private void yypushback(int number) {
if ( number > yylength() )
zzScanError(ZZ_PUSHBACK_2BIG);
zzMarkedPos -= number;
}
/**
* 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
*/
private PropertiesToken getToken() throws java.io.IOException {
int zzInput;
int zzAction;
// cached fields:
int zzCurrentPosL;
int zzMarkedPosL;
int zzEndReadL = zzEndRead;
char [] zzBufferL = zzBuffer;
char [] zzCMapL = zzcmap_instance;
int [] zzTransL = ZZ_TRANS;
int [] zzRowMapL = ZZ_ROWMAP;
int [] zzAttrL = ZZ_ATTRIBUTE;
while (true) {
zzMarkedPosL = zzMarkedPos;
zzAction = -1;
zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;
zzState = zzLexicalState;
zzForAction: {
while (true) {
if (zzCurrentPosL < zzEndReadL)
zzInput = zzBufferL[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 = zzBufferL[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 6:
{ nextState = YYINITIAL;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 16: break;
case 10:
{ nextState = NAME_SPACE;
lastToken = PropertiesToken.WHITE_SPACE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 17: break;
case 1:
{ nextState = NAME;
lastToken = PropertiesToken.NAME;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 18: break;
case 13:
{ nextState = MID_NAME_NEW_LINE;
lastToken = PropertiesToken.CONTINUE_LINE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 19: break;
case 11:
{ nextState = MID_NAME;
lastToken = PropertiesToken.WHITE_SPACE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 20: break;
case 15:
{ nextState = MID_VALUE;
lastToken = PropertiesToken.CONTINUE_LINE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 21: break;
case 4:
{ nextState = WHITE_SPACE;
lastToken = PropertiesToken.WHITE_SPACE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 22: break;
case 8:
{ nextState = LINE_END;
lastToken = PropertiesToken.COMMENT;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 23: break;
case 5:
{ // Ignore escape characters at the end of the file.
}
case 24: break;
case 12:
{ lastToken = PropertiesToken.WHITE_SPACE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
return (t);
}
case 25: break;
case 14:
{ lastToken = PropertiesToken.CONTINUE_LINE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
return (t);
}
case 26: break;
case 7:
{ nextState = SEPARATOR;
lastToken = PropertiesToken.SEPARATOR;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 27: break;
case 3:
{ return null;
}
case 28: break;
case 9:
{ System.err.println("Unmatched input.");
String state = "";
String text = yytext();
switch (nextState){
case YYINITIAL: state = "YYINITIAL"; break;
case LINE_END: state = "LINE_END"; break;
case WHITE_SPACE: state = "WHITE_SPACE"; break;
case NAME: state = "NAME"; break;
case SEPARATOR: state = "SEPARATOR"; break;
case VALUE: state = "VALUE"; break;
case MID_NAME: state = "MID_NAME"; break;
case NAME_SPACE: state = "NAME_SPACE"; break;
}
System.err.println("State: '" + state + "'");
System.err.println("Text: '" + text + "'");
zzScanError(ZZ_NO_MATCH);
}
case 29: break;
case 2:
{ nextState = VALUE;
lastToken = PropertiesToken.VALUE;
String text = yytext();
PropertiesToken t = new PropertiesToken(lastToken,text);
yybegin(nextState);
return (t);
}
case 30: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
switch (zzLexicalState) {
case SEPARATOR: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 37: break;
case MID_NAME: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 38: break;
case MID_NAME_NEW_LINE: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 39: break;
case VALUE: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 40: break;
case NAME_SPACE: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 41: break;
case YYINITIAL: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 42: break;
case WHITE_SPACE: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 43: break;
case LINE_END: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 44: break;
case NAME: {
nextState = DONE;
lastToken = PropertiesToken.END_LINE_WHITE_SPACE;
PropertiesToken t = new PropertiesToken(lastToken,"");
yybegin(nextState);
return (t);
}
case 45: break;
default:
return null;
}
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy