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GraphViz graph builder and parser.
/* This file was generated by SableCC (http://www.sablecc.org/). */
package org.anarres.graphviz.parser.lexer;
import java.io.*;
import org.anarres.graphviz.parser.node.*;
@SuppressWarnings("nls")
public class Lexer implements LexerInterface
{
protected Token token;
protected State state = State.INITIAL;
private PushbackReader in;
private int offset;
private int line;
private int pos;
private boolean cr;
private boolean eof;
private final StringBuilder text = new StringBuilder();
@SuppressWarnings("unused")
protected void filter() throws LexerException, IOException
{
// Do nothing
}
public Lexer(@SuppressWarnings("hiding") PushbackReader in)
{
this.in = in;
}
public Token peek() throws LexerException, IOException
{
while(this.token == null)
{
this.token = getToken();
filter();
}
return this.token;
}
public Token next() throws LexerException, IOException
{
while(this.token == null)
{
this.token = getToken();
filter();
}
Token result = this.token;
this.token = null;
return result;
}
protected Token getToken() throws IOException, LexerException
{
int dfa_state = 0;
int start_offset = this.offset;
int start_pos = this.pos;
int start_line = this.line;
int accept_state = -1;
int accept_token = -1;
int accept_length = -1;
int accept_offset = -1;
int accept_pos = -1;
int accept_line = -1;
@SuppressWarnings("hiding") int[][][] gotoTable = Lexer.gotoTable[this.state.id()];
@SuppressWarnings("hiding") int[] accept = Lexer.accept[this.state.id()];
this.text.setLength(0);
while(true)
{
int c = getChar();
if(c != -1)
{
switch(c)
{
case 10:
if(this.cr)
{
this.cr = false;
}
else
{
this.offset++;
this.line++;
this.pos = 0;
}
break;
case 13:
this.offset++;
this.line++;
this.pos = 0;
this.cr = true;
break;
default:
this.offset++;
this.pos++;
this.cr = false;
break;
}
this.text.append((char) c);
do
{
int oldState = (dfa_state < -1) ? (-2 -dfa_state) : dfa_state;
dfa_state = -1;
int[][] tmp1 = gotoTable[oldState];
int low = 0;
int high = tmp1.length - 1;
while(low <= high)
{
int middle = (low + high) / 2;
int[] tmp2 = tmp1[middle];
if(c < tmp2[0])
{
high = middle - 1;
}
else if(c > tmp2[1])
{
low = middle + 1;
}
else
{
dfa_state = tmp2[2];
break;
}
}
}while(dfa_state < -1);
}
else
{
dfa_state = -1;
}
if(dfa_state >= 0)
{
if(accept[dfa_state] != -1)
{
accept_state = dfa_state;
accept_token = accept[dfa_state];
accept_length = this.text.length();
accept_offset = this.offset;
accept_pos = this.pos;
accept_line = this.line;
}
}
else
{
if(accept_state != -1)
{
switch(accept_token)
{
case 0:
{
@SuppressWarnings("hiding") Token token = new0(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 1:
{
@SuppressWarnings("hiding") Token token = new1(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 2:
{
@SuppressWarnings("hiding") Token token = new2(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 3:
{
@SuppressWarnings("hiding") Token token = new3(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 4:
{
@SuppressWarnings("hiding") Token token = new4(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 5:
{
@SuppressWarnings("hiding") Token token = new5(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 6:
{
@SuppressWarnings("hiding") Token token = new6(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 7:
{
@SuppressWarnings("hiding") Token token = new7(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 8:
{
@SuppressWarnings("hiding") Token token = new8(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 9:
{
@SuppressWarnings("hiding") Token token = new9(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 10:
{
@SuppressWarnings("hiding") Token token = new10(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 11:
{
@SuppressWarnings("hiding") Token token = new11(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 12:
{
@SuppressWarnings("hiding") Token token = new12(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 13:
{
@SuppressWarnings("hiding") Token token = new13(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 14:
{
@SuppressWarnings("hiding") Token token = new14(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 15:
{
@SuppressWarnings("hiding") Token token = new15(
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 16:
{
@SuppressWarnings("hiding") Token token = new16(
getText(accept_length),
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 17:
{
@SuppressWarnings("hiding") Token token = new17(
getText(accept_length),
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 18:
{
@SuppressWarnings("hiding") Token token = new18(
getText(accept_length),
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
case 19:
{
@SuppressWarnings("hiding") Token token = new19(
getText(accept_length),
start_offset,
start_line + 1,
start_pos + 1);
pushBack(accept_length);
this.offset = accept_offset;
this.pos = accept_pos;
this.line = accept_line;
return token;
}
}
}
else
{
if(this.text.length() > 0)
{
throw new LexerException(
"[" + (start_line + 1) + "," + (start_pos + 1) + "]" +
" Unknown token: " + this.text);
}
@SuppressWarnings("hiding") EOF token = new EOF(
start_offset,
start_line + 1,
start_pos + 1);
return token;
}
}
}
}
Token new0(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokLbrace(offset, line, pos); }
Token new1(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokRbrace(offset, line, pos); }
Token new2(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokLsquare(offset, line, pos); }
Token new3(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokRsquare(offset, line, pos); }
Token new4(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokArrow(offset, line, pos); }
Token new5(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokLink(offset, line, pos); }
Token new6(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokEq(offset, line, pos); }
Token new7(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokSemi(offset, line, pos); }
Token new8(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokComma(offset, line, pos); }
Token new9(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TTokColon(offset, line, pos); }
Token new10(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TKwStrict(offset, line, pos); }
Token new11(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TKwGraph(offset, line, pos); }
Token new12(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TKwDigraph(offset, line, pos); }
Token new13(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TKwSubgraph(offset, line, pos); }
Token new14(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TKwNode(offset, line, pos); }
Token new15(@SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TKwEdge(offset, line, pos); }
Token new16(@SuppressWarnings("hiding") String text, @SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TLiteral(text, offset, line, pos); }
Token new17(@SuppressWarnings("hiding") String text, @SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TStringLiteral(text, offset, line, pos); }
Token new18(@SuppressWarnings("hiding") String text, @SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TBlank(text, offset, line, pos); }
Token new19(@SuppressWarnings("hiding") String text, @SuppressWarnings("hiding") int offset, @SuppressWarnings("hiding") int line, @SuppressWarnings("hiding") int pos) { return new TComment(text, offset, line, pos); }
private int getChar() throws IOException
{
if(this.eof)
{
return -1;
}
int result = this.in.read();
if(result == -1)
{
this.eof = true;
}
return result;
}
private void pushBack(int acceptLength) throws IOException
{
int length = this.text.length();
for(int i = length - 1; i >= acceptLength; i--)
{
this.eof = false;
this.in.unread(this.text.charAt(i));
}
}
protected void unread(@SuppressWarnings("hiding") Token token) throws IOException
{
@SuppressWarnings("hiding") String text = token.getText();
int length = text.length();
for(int i = length - 1; i >= 0; i--)
{
this.eof = false;
this.in.unread(text.charAt(i));
}
this.offset = token.getOffset();
this.pos = token.getPos() - 1;
this.line = token.getLine() - 1;
}
protected String getText(int acceptLength) { return text.substring(0, acceptLength); }
private static int[][][][] gotoTable;
/* {
{ // INITIAL
{{9, 9, 1}, {10, 10, 2}, {13, 13, 3}, {32, 32, 4}, {34, 34, 5}, {35, 35, 6}, {44, 44, 7}, {45, 45, 8}, {46, 46, 9}, {47, 47, 10}, {48, 57, 11}, {58, 58, 12}, {59, 59, 13}, {61, 61, 14}, {65, 90, 15}, {91, 91, 16}, {93, 93, 17}, {95, 95, 15}, {97, 99, 15}, {100, 100, 18}, {101, 101, 19}, {102, 102, 15}, {103, 103, 20}, {104, 109, 15}, {110, 110, 21}, {111, 114, 15}, {115, 115, 22}, {116, 122, 15}, {123, 123, 23}, {125, 125, 24}, },
{{9, 32, -2}, },
{{9, 32, -2}, },
{{9, 9, 1}, {10, 10, 25}, {13, 32, -2}, },
{{9, 32, -2}, },
{{0, 9, 26}, {11, 12, 26}, {14, 33, 26}, {34, 34, 27}, {35, 91, 26}, {92, 92, 28}, {93, 65535, 26}, },
{{0, 9, 29}, {10, 10, 30}, {11, 12, 29}, {13, 13, 31}, {14, 65535, 29}, },
{},
{{45, 45, 32}, {62, 62, 33}, },
{{46, 46, 9}, {48, 57, 11}, {65, 90, 15}, {95, 95, 15}, {97, 122, 15}, },
{{42, 42, 34}, {47, 47, 35}, },
{{46, 122, -11}, },
{},
{},
{},
{{46, 122, -11}, },
{},
{},
{{46, 95, -11}, {97, 104, 15}, {105, 105, 36}, {106, 122, 15}, },
{{46, 95, -11}, {97, 99, 15}, {100, 100, 37}, {101, 122, 15}, },
{{46, 95, -11}, {97, 113, 15}, {114, 114, 38}, {115, 122, 15}, },
{{46, 95, -11}, {97, 110, 15}, {111, 111, 39}, {112, 122, 15}, },
{{46, 95, -11}, {97, 115, 15}, {116, 116, 40}, {117, 117, 41}, {118, 122, 15}, },
{},
{},
{{9, 32, -2}, },
{{0, 65535, -7}, },
{},
{{34, 34, 42}, {39, 39, 43}, {63, 63, 44}, {92, 92, 45}, {97, 97, 46}, {98, 98, 47}, {102, 102, 48}, {108, 108, 49}, {110, 110, 50}, {114, 114, 51}, {116, 116, 52}, {118, 118, 53}, },
{{0, 65535, -8}, },
{},
{{10, 10, 54}, },
{},
{},
{{0, 41, 55}, {42, 42, 56}, {43, 65535, 55}, },
{{0, 9, 57}, {10, 10, 58}, {11, 12, 57}, {13, 13, 59}, {14, 65535, 57}, },
{{46, 95, -11}, {97, 102, 15}, {103, 103, 60}, {104, 122, 15}, },
{{46, 102, -38}, {103, 103, 61}, {104, 122, 15}, },
{{46, 95, -11}, {97, 97, 62}, {98, 122, 15}, },
{{46, 99, -21}, {100, 100, 63}, {101, 122, 15}, },
{{46, 113, -22}, {114, 114, 64}, {115, 122, 15}, },
{{46, 95, -11}, {97, 97, 15}, {98, 98, 65}, {99, 122, 15}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{{0, 65535, -7}, },
{},
{{0, 65535, -36}, },
{{0, 41, 66}, {42, 42, 56}, {43, 46, 66}, {47, 47, 67}, {48, 65535, 66}, },
{{0, 65535, -37}, },
{},
{{10, 10, 68}, },
{{46, 113, -22}, {114, 114, 69}, {115, 122, 15}, },
{{46, 95, -11}, {97, 100, 15}, {101, 101, 70}, {102, 122, 15}, },
{{46, 95, -11}, {97, 111, 15}, {112, 112, 71}, {113, 122, 15}, },
{{46, 100, -63}, {101, 101, 72}, {102, 122, 15}, },
{{46, 104, -20}, {105, 105, 73}, {106, 122, 15}, },
{{46, 102, -38}, {103, 103, 74}, {104, 122, 15}, },
{{0, 41, 75}, {42, 42, 76}, {43, 65535, 75}, },
{},
{},
{{46, 95, -11}, {97, 97, 77}, {98, 122, 15}, },
{{46, 122, -11}, },
{{46, 95, -11}, {97, 103, 15}, {104, 104, 78}, {105, 122, 15}, },
{{46, 122, -11}, },
{{46, 95, -11}, {97, 98, 15}, {99, 99, 79}, {100, 122, 15}, },
{{46, 113, -22}, {114, 114, 80}, {115, 122, 15}, },
{{0, 65535, -68}, },
{{0, 41, 66}, {42, 42, 76}, {43, 65535, -58}, },
{{46, 111, -64}, {112, 112, 81}, {113, 122, 15}, },
{{46, 122, -11}, },
{{46, 115, -24}, {116, 116, 82}, {117, 122, 15}, },
{{46, 95, -11}, {97, 97, 83}, {98, 122, 15}, },
{{46, 103, -73}, {104, 104, 84}, {105, 122, 15}, },
{{46, 122, -11}, },
{{46, 111, -64}, {112, 112, 85}, {113, 122, 15}, },
{{46, 122, -11}, },
{{46, 103, -73}, {104, 104, 86}, {105, 122, 15}, },
{{46, 122, -11}, },
}
};*/
private static int[][] accept;
/* {
// INITIAL
{16, 18, 18, 18, 18, -1, 19, 8, -1, 16, -1, 16, 9, 7, 6, 16, 2, 3, 16, 16, 16, 16, 16, 0, 1, 18, -1, 17, -1, 19, 19, 19, 5, 4, -1, 19, 16, 16, 16, 16, 16, 16, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 19, -1, -1, 19, 19, 19, 16, 16, 16, 16, 16, 16, -1, 19, 19, 16, 15, 16, 14, 16, 16, -1, -1, 16, 11, 16, 16, 16, 10, 16, 12, 16, 13, },
};*/
public static class State
{
public final static State INITIAL = new State(0);
private int id;
private State(@SuppressWarnings("hiding") int id)
{
this.id = id;
}
public int id()
{
return this.id;
}
}
static
{
try
{
DataInputStream s = new DataInputStream(
new BufferedInputStream(
Lexer.class.getResourceAsStream("lexer.dat")));
// read gotoTable
int length = s.readInt();
gotoTable = new int[length][][][];
for(int i = 0; i < gotoTable.length; i++)
{
length = s.readInt();
gotoTable[i] = new int[length][][];
for(int j = 0; j < gotoTable[i].length; j++)
{
length = s.readInt();
gotoTable[i][j] = new int[length][3];
for(int k = 0; k < gotoTable[i][j].length; k++)
{
for(int l = 0; l < 3; l++)
{
gotoTable[i][j][k][l] = s.readInt();
}
}
}
}
// read accept
length = s.readInt();
accept = new int[length][];
for(int i = 0; i < accept.length; i++)
{
length = s.readInt();
accept[i] = new int[length];
for(int j = 0; j < accept[i].length; j++)
{
accept[i][j] = s.readInt();
}
}
s.close();
}
catch(Exception e)
{
throw new RuntimeException("The file \"lexer.dat\" is either missing or corrupted.");
}
}
}
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