📄 yylex.java
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package Parse;import ErrorMsg.ErrorMsg;
public class Yylex implements Lexer {
private final int YY_BUFFER_SIZE = 512;
private final int YY_F = -1;
private final int YY_NO_STATE = -1;
private final int YY_NOT_ACCEPT = 0;
private final int YY_START = 1;
private final int YY_END = 2;
private final int YY_NO_ANCHOR = 4;
private final int YY_BOL = 128;
private final int YY_EOF = 129;
private void newline() { errorMsg.newline(yychar);}private String err(int pos, String s) { return errorMsg.error(pos,s);}private String err(String s) { return err(yychar,s);}private String transMeaning(String s){ char tmp_c=0; String tmp_s=""; if("\\t".equals(s)) tmp_c= 9; else if("\\n".equals(s)) tmp_c= 10; else if("\\r".equals(s)) tmp_c= 13; else if("\\".equals(s)) tmp_c= '\\'; else if("\\\"".equals(s))tmp_c= '"'; else if(s.length()>=4&&s.charAt(0)=='\\'&&Character.isDigit(s.charAt(1))&& Character.isDigit(s.charAt(2))&&Character.isDigit(s.charAt(3))) { int tmp=0; tmp=(s.charAt(1)-48)*100; tmp+=(s.charAt(2)-48)*10; tmp+=(s.charAt(3)-48); if(tmp<256&&tmp>=0) tmp_c= (char)tmp; else err("Wrong character [" + s + "]"); } if(tmp_c!=0)tmp_s+=tmp_c; return tmp_s;}public Yylex(java.io.Reader s, ErrorMsg e) { this(s); errorMsg=e; }private Token tok(int kind) { return new Token(yychar, yychar+yylength(),kind);}private StrToken errorTok(int kind,String value) { return new StrToken(yychar, yychar+yylength(),kind,value);}private IntToken intTok(int kind,int value) { return new IntToken(yychar, yychar+yylength(),kind,value);}private StrToken strTok(int left,int kind, String value) { return new StrToken(left, yychar+yylength(),kind, value);}private Token commTok(int left,int kind) { return new Token(left, yychar+yylength(),kind);}private StrToken idTok(int kind,String value) { return new StrToken(yychar, yychar+yylength(),kind,value);}private ErrorMsg errorMsg;private String con_str="";private int comm_depth=0;private int comm_left=0;private int str_left=0;public Yylex(java.io.InputStream s, ErrorMsg e) { this(s); errorMsg=e;} private java.io.BufferedReader yy_reader;
private int yy_buffer_index;
private int yy_buffer_read;
private int yy_buffer_start;
private int yy_buffer_end;
private char yy_buffer[];
private int yychar;
private boolean yy_at_bol;
private int yy_lexical_state;
Yylex (java.io.Reader reader) {
this ();
if (null == reader) {
throw (new Error("Error: Bad input stream initializer."));
}
yy_reader = new java.io.BufferedReader(reader);
}
Yylex (java.io.InputStream instream) {
this ();
if (null == instream) {
throw (new Error("Error: Bad input stream initializer."));
}
yy_reader = new java.io.BufferedReader(new java.io.InputStreamReader(instream));
}
private Yylex () {
yy_buffer = new char[YY_BUFFER_SIZE];
yy_buffer_read = 0;
yy_buffer_index = 0;
yy_buffer_start = 0;
yy_buffer_end = 0;
yychar = 0;
yy_at_bol = true;
yy_lexical_state = YYINITIAL;
}
private boolean yy_eof_done = false;
private final int STRING = 1;
private final int YYINITIAL = 0;
private final int COMMENT = 3;
private final int STRINGLINES = 2;
private final int yy_state_dtrans[] = {
0,
79,
86,
90
};
private void yybegin (int state) {
yy_lexical_state = state;
}
private int yy_advance ()
throws java.io.IOException {
int next_read;
int i;
int j;
if (yy_buffer_index < yy_buffer_read) {
return yy_buffer[yy_buffer_index++];
}
if (0 != yy_buffer_start) {
i = yy_buffer_start;
j = 0;
while (i < yy_buffer_read) {
yy_buffer[j] = yy_buffer[i];
++i;
++j;
}
yy_buffer_end = yy_buffer_end - yy_buffer_start;
yy_buffer_start = 0;
yy_buffer_read = j;
yy_buffer_index = j;
next_read = yy_reader.read(yy_buffer,
yy_buffer_read,
yy_buffer.length - yy_buffer_read);
if (-1 == next_read) {
return YY_EOF;
}
yy_buffer_read = yy_buffer_read + next_read;
}
while (yy_buffer_index >= yy_buffer_read) {
if (yy_buffer_index >= yy_buffer.length) {
yy_buffer = yy_double(yy_buffer);
}
next_read = yy_reader.read(yy_buffer,
yy_buffer_read,
yy_buffer.length - yy_buffer_read);
if (-1 == next_read) {
return YY_EOF;
}
yy_buffer_read = yy_buffer_read + next_read;
}
return yy_buffer[yy_buffer_index++];
}
private void yy_move_end () {
if (yy_buffer_end > yy_buffer_start &&
'\n' == yy_buffer[yy_buffer_end-1])
yy_buffer_end--;
if (yy_buffer_end > yy_buffer_start &&
'\r' == yy_buffer[yy_buffer_end-1])
yy_buffer_end--;
}
private boolean yy_last_was_cr=false;
private void yy_mark_start () {
yychar = yychar
+ yy_buffer_index - yy_buffer_start;
yy_buffer_start = yy_buffer_index;
}
private void yy_mark_end () {
yy_buffer_end = yy_buffer_index;
}
private void yy_to_mark () {
yy_buffer_index = yy_buffer_end;
yy_at_bol = (yy_buffer_end > yy_buffer_start) &&
('\r' == yy_buffer[yy_buffer_end-1] ||
'\n' == yy_buffer[yy_buffer_end-1] ||
2028/*LS*/ == yy_buffer[yy_buffer_end-1] ||
2029/*PS*/ == yy_buffer[yy_buffer_end-1]);
}
private java.lang.String yytext () {
return (new java.lang.String(yy_buffer,
yy_buffer_start,
yy_buffer_end - yy_buffer_start));
}
private int yylength () {
return yy_buffer_end - yy_buffer_start;
}
private char[] yy_double (char buf[]) {
int i;
char newbuf[];
newbuf = new char[2*buf.length];
for (i = 0; i < buf.length; ++i) {
newbuf[i] = buf[i];
}
return newbuf;
}
private final int YY_E_INTERNAL = 0;
private final int YY_E_MATCH = 1;
private java.lang.String yy_error_string[] = {
"Error: Internal error.\n",
"Error: Unmatched input.\n"
};
private void yy_error (int code,boolean fatal) {
java.lang.System.out.print(yy_error_string[code]);
java.lang.System.out.flush();
if (fatal) {
throw new Error("Fatal Error.\n");
}
}
private int[][] unpackFromString(int size1, int size2, String st) {
int colonIndex = -1;
String lengthString;
int sequenceLength = 0;
int sequenceInteger = 0;
int commaIndex;
String workString;
int res[][] = new int[size1][size2];
for (int i= 0; i < size1; i++) {
for (int j= 0; j < size2; j++) {
if (sequenceLength != 0) {
res[i][j] = sequenceInteger;
sequenceLength--;
continue;
}
commaIndex = st.indexOf(',');
workString = (commaIndex==-1) ? st :
st.substring(0, commaIndex);
st = st.substring(commaIndex+1);
colonIndex = workString.indexOf(':');
if (colonIndex == -1) {
res[i][j]=Integer.parseInt(workString);
continue;
}
lengthString =
workString.substring(colonIndex+1);
sequenceLength=Integer.parseInt(lengthString);
workString=workString.substring(0,colonIndex);
sequenceInteger=Integer.parseInt(workString);
res[i][j] = sequenceInteger;
sequenceLength--;
}
}
return res;
}
private int yy_acpt[] = {
/* 0 */ YY_NO_ANCHOR,
/* 1 */ YY_NO_ANCHOR,
/* 2 */ YY_NO_ANCHOR,
/* 3 */ YY_NO_ANCHOR,
/* 4 */ YY_NO_ANCHOR,
/* 5 */ YY_NO_ANCHOR,
/* 6 */ YY_NO_ANCHOR,
/* 7 */ YY_NO_ANCHOR,
/* 8 */ YY_NO_ANCHOR,
/* 9 */ YY_NO_ANCHOR,
/* 10 */ YY_NO_ANCHOR,
/* 11 */ YY_NO_ANCHOR,
/* 12 */ YY_NO_ANCHOR,
/* 13 */ YY_NO_ANCHOR,
/* 14 */ YY_NO_ANCHOR,
/* 15 */ YY_NO_ANCHOR,
/* 16 */ YY_NO_ANCHOR,
/* 17 */ YY_NO_ANCHOR,
/* 18 */ YY_NO_ANCHOR,
/* 19 */ YY_NO_ANCHOR,
/* 20 */ YY_NO_ANCHOR,
/* 21 */ YY_NO_ANCHOR,
/* 22 */ YY_NO_ANCHOR,
/* 23 */ YY_NO_ANCHOR,
/* 24 */ YY_NO_ANCHOR,
/* 25 */ YY_NO_ANCHOR,
/* 26 */ YY_NO_ANCHOR,
/* 27 */ YY_NOT_ACCEPT,
/* 28 */ YY_NO_ANCHOR,
/* 29 */ YY_NO_ANCHOR,
/* 30 */ YY_NO_ANCHOR,
/* 31 */ YY_NO_ANCHOR,
/* 32 */ YY_NO_ANCHOR,
/* 33 */ YY_NO_ANCHOR,
/* 34 */ YY_NO_ANCHOR,
/* 35 */ YY_NO_ANCHOR,
/* 36 */ YY_NO_ANCHOR,
/* 37 */ YY_NO_ANCHOR,
/* 38 */ YY_NO_ANCHOR,
/* 39 */ YY_NO_ANCHOR,
/* 40 */ YY_NO_ANCHOR,
/* 41 */ YY_NO_ANCHOR,
/* 42 */ YY_NO_ANCHOR,
/* 43 */ YY_NO_ANCHOR,
/* 44 */ YY_NO_ANCHOR,
/* 45 */ YY_NO_ANCHOR,
/* 46 */ YY_NO_ANCHOR,
/* 47 */ YY_NO_ANCHOR,
/* 48 */ YY_NO_ANCHOR,
/* 49 */ YY_NO_ANCHOR,
/* 50 */ YY_NO_ANCHOR,
/* 51 */ YY_NO_ANCHOR,
/* 52 */ YY_NO_ANCHOR,
/* 53 */ YY_NO_ANCHOR,
/* 54 */ YY_NO_ANCHOR,
/* 55 */ YY_NO_ANCHOR,
/* 56 */ YY_NO_ANCHOR,
/* 57 */ YY_NO_ANCHOR,
/* 58 */ YY_NO_ANCHOR,
/* 59 */ YY_NO_ANCHOR,
/* 60 */ YY_NO_ANCHOR,
/* 61 */ YY_NO_ANCHOR,
/* 62 */ YY_NO_ANCHOR,
/* 63 */ YY_NO_ANCHOR,
/* 64 */ YY_NO_ANCHOR,
/* 65 */ YY_NO_ANCHOR,
/* 66 */ YY_NO_ANCHOR,
/* 67 */ YY_NOT_ACCEPT,
/* 68 */ YY_NO_ANCHOR,
/* 69 */ YY_NO_ANCHOR,
/* 70 */ YY_NO_ANCHOR,
/* 71 */ YY_NO_ANCHOR,
/* 72 */ YY_NO_ANCHOR,
/* 73 */ YY_NO_ANCHOR,
/* 74 */ YY_NO_ANCHOR,
/* 75 */ YY_NOT_ACCEPT,
/* 76 */ YY_NO_ANCHOR,
/* 77 */ YY_NO_ANCHOR,
/* 78 */ YY_NO_ANCHOR,
/* 79 */ YY_NOT_ACCEPT,
/* 80 */ YY_NO_ANCHOR,
/* 81 */ YY_NO_ANCHOR,
/* 82 */ YY_NOT_ACCEPT,
/* 83 */ YY_NO_ANCHOR,
/* 84 */ YY_NOT_ACCEPT,
/* 85 */ YY_NO_ANCHOR,
/* 86 */ YY_NOT_ACCEPT,
/* 87 */ YY_NO_ANCHOR,
/* 88 */ YY_NOT_ACCEPT,
/* 89 */ YY_NO_ANCHOR,
/* 90 */ YY_NOT_ACCEPT,
/* 91 */ YY_NO_ANCHOR,
/* 92 */ YY_NO_ANCHOR,
/* 93 */ YY_NO_ANCHOR,
/* 94 */ YY_NO_ANCHOR,
/* 95 */ YY_NO_ANCHOR,
/* 96 */ YY_NO_ANCHOR,
/* 97 */ YY_NO_ANCHOR,
/* 98 */ YY_NO_ANCHOR,
/* 99 */ YY_NO_ANCHOR,
/* 100 */ YY_NO_ANCHOR,
/* 101 */ YY_NO_ANCHOR,
/* 102 */ YY_NO_ANCHOR,
/* 103 */ YY_NO_ANCHOR,
/* 104 */ YY_NO_ANCHOR,
/* 105 */ YY_NO_ANCHOR,
/* 106 */ YY_NO_ANCHOR,
/* 107 */ YY_NO_ANCHOR,
/* 108 */ YY_NO_ANCHOR,
/* 109 */ YY_NO_ANCHOR,
/* 110 */ YY_NO_ANCHOR,
/* 111 */ YY_NO_ANCHOR,
/* 112 */ YY_NO_ANCHOR,
/* 113 */ YY_NO_ANCHOR,
/* 114 */ YY_NO_ANCHOR,
/* 115 */ YY_NO_ANCHOR,
/* 116 */ YY_NO_ANCHOR,
/* 117 */ YY_NO_ANCHOR,
/* 118 */ YY_NO_ANCHOR,
/* 119 */ YY_NO_ANCHOR,
/* 120 */ YY_NO_ANCHOR
};
private int yy_cmap[] = unpackFromString(1,130,
"55:9,8,3,55,1,2,55:18,8,55,51,55:3,23,55,16,17,21,19,9,20,18,22,5,6,7,50:7," +
"14,15,26,25,27,55,53,54:26,12,4,13,52,49,55,37,36,43,41,35,28,48,32,33,48,3" +
"8,34,48,40,29,46,48,30,47,39,42,44,31,48,45,48,10,24,11,55:2,0:2")[0];
private int yy_rmap[] = unpackFromString(1,121,
"0,1:2,2,3,4,1:5,5,1:6,6,7,1:3,8,9,10,1,11,1:6,12:17,1,13,1:2,14,1:6,15:2,1:" +
"2,16,3,1,17,1,18,19,2,20,21,22,23,24,25,26,27,28,29,22,30,31,32,33,34,35,36" +
",37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,12,56,57,58,59,60" +
",61,62,63,64")[0];
private int yy_nxt[][] = unpackFromString(65,56,
"1,2,3,64,4,5:3,63,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,6" +
"6,111,114,111,74,115,116,117,118,111,78,119,81,111:2,120,111:4,65,5,26,65:2" +
",111,65,-1:59,64,-1:57,27,-1:55,5:3,-1:42,5,-1:30,28,-1:52,29,-1:54,30,-1:5" +
"9,31,-1,32,-1:53,33,-1:35,111:3,-1:20,111,83,111:12,85,111:8,-1:3,111,-1:7," +
"75,-1:54,111:3,-1:20,111:23,-1:3,111,-1:2,54,55,70,56,69:3,76,54:21,56,54:8" +
",56:2,54:9,69,56,80,54:3,-1:3,70,-1:56,67,-1:3,62,-1:52,111:3,-1:20,34,111:" +
"22,-1:3,111,-1:6,82:3,-1:42,82,-1:8,57,-1:74,60,-1:38,111:3,-1:20,35,111:11" +
",36,111:10,-1:3,111,-1:8,62,-1:50,55,70,-1:4,84,-1:68,61,-1:39,111:3,-1:20," +
"111,37,111:2,112,111:12,95,111:5,-1:3,111,-1,1,51:3,52,68:19,51,68:26,53,68" +
":4,-1:49,56,-1:3,56:2,-1:6,111:3,-1:20,111,38,111:21,-1:3,111,-1:6,56:3,-1:" +
"42,56,-1:10,111:3,-1:20,111:2,39,111:20,-1:3,111,-1:6,111:3,-1:20,111:12,98" +
",111:10,-1:3,111,-1,1,57,71,57,58,-1:3,88,-1:52,111:3,-1:20,111:5,99,111:17" +
",-1:3,111,-1:2,57,71,57,-1:4,88,-1:52,111:3,-1:20,111:11,40,111:11,-1:3,111" +
",-1,1,2,73,64,59:4,2,59:12,72,77,59:33,-1:5,111:3,-1:20,111:19,100,111:3,-1" +
":3,111,-1:6,111:3,-1:20,111:13,41,111:9,-1:3,111,-1:6,111:3,-1:20,111:7,101" +
",111:15,-1:3,111,-1:6,111:3,-1:20,111:2,113,111:20,-1:3,111,-1:6,111:3,-1:2" +
"0,111:18,103,111:4,-1:3,111,-1:6,111:3,-1:20,111:6,42,111:16,-1:3,111,-1:6," +
"111:3,-1:20,111:2,43,111:20,-1:3,111,-1:6,111:3,-1:20,111:15,104,111:7,-1:3" +
",111,-1:6,111:3,-1:20,111:6,105,111:16,-1:3,111,-1:6,111:3,-1:20,111:7,44,1" +
"11:15,-1:3,111,-1:6,111:3,-1:20,111:9,106,111:13,-1:3,111,-1:6,111:3,-1:20," +
"111:12,45,111:10,-1:3,111,-1:6,111:3,-1:20,111:7,46,111:15,-1:3,111,-1:6,11" +
"1:3,-1:20,111:11,108,111:11,-1:3,111,-1:6,111:3,-1:20,111:7,47,111:15,-1:3," +
"111,-1:6,111:3,-1:20,111:10,48,111:12,-1:3,111,-1:6,111:3,-1:20,111:17,49,1" +
"11:5,-1:3,111,-1:6,111:3,-1:20,111:5,109,111:17,-1:3,111,-1:6,111:3,-1:20,1" +
"11,110,111:21,-1:3,111,-1:6,111:3,-1:20,111:12,50,111:10,-1:3,111,-1:6,111:" +
"3,-1:20,111:7,102,111:15,-1:3,111,-1:6,111:3,-1:20,111:9,107,111:13,-1:3,11" +
"1,-1:6,111:3,-1:20,111:4,87,111:18,-1:3,111,-1:6,111:3,-1:20,111:7,89,111:1" +
"5,-1:3,111,-1:6,111:3,-1:20,111:6,91,111:5,92,111:10,-1:3,111,-1:6,111:3,-1" +
":20,111:2,93,111:20,-1:3,111,-1:6,111:3,-1:20,111:2,94,111:20,-1:3,111,-1:6" +
",111:3,-1:20,111:5,96,111:17,-1:3,111,-1:6,111:3,-1:20,111:9,97,111:13,-1:3" +
",111,-1");
public Token nextToken ()
throws java.io.IOException {
int yy_lookahead;
int yy_anchor = YY_NO_ANCHOR;
int yy_state = yy_state_dtrans[yy_lexical_state];
int yy_next_state = YY_NO_STATE;
int yy_last_accept_state = YY_NO_STATE;
boolean yy_initial = true;
int yy_this_accept;
yy_mark_start();
yy_this_accept = yy_acpt[yy_state];
if (YY_NOT_ACCEPT != yy_this_accept) {
yy_last_accept_state = yy_state;
yy_mark_end();
}
while (true) {
if (yy_initial && yy_at_bol) yy_lookahead = YY_BOL;
else yy_lookahead = yy_advance();
yy_next_state = YY_F;
yy_next_state = yy_nxt[yy_rmap[yy_state]][yy_cmap[yy_lookahead]];
if (YY_EOF == yy_lookahead && true == yy_initial) {
{ if(yy_lexical_state == STRING||yy_lexical_state == STRINGLINES) { err("Unclosed string constant.[" + yytext() + "]"); err("Wrong end of file."); return errorTok(sym.EOF,str_left+"_STRING"); } if(yy_lexical_state == COMMENT) { err("Unclosed comment.[" + yytext() + "]"); err("Wrong end of file." ); return errorTok(sym.EOF,comm_left+"_COMM"); } return tok(sym.EOF); } }
if (YY_F != yy_next_state) {
yy_state = yy_next_state;
yy_initial = false;
yy_this_accept = yy_acpt[yy_state];
if (YY_NOT_ACCEPT != yy_this_accept) {
yy_last_accept_state = yy_state;
yy_mark_end();
}
}
else {
if (YY_NO_STATE == yy_last_accept_state) {
throw (new Error("Lexical Error: Unmatched Input."));
}
else {
yy_anchor = yy_acpt[yy_last_accept_state];
if (0 != (YY_END & yy_anchor)) {
yy_move_end();
}
yy_to_mark();
switch (yy_last_accept_state) {
case 0:
{}
case -2:
break;
case 1:
case -3:
break;
case 2:
{}
case -4:
break;
case 3:
{newline();}
case -5:
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