349 lines
8.6 KiB
Java
349 lines
8.6 KiB
Java
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class TaschenrechnerLexer {
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private final int YY_BUFFER_SIZE = 512;
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private final int YY_F = -1;
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private final int YY_NO_STATE = -1;
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private final int YY_NOT_ACCEPT = 0;
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private final int YY_START = 1;
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private final int YY_END = 2;
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private final int YY_NO_ANCHOR = 4;
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private final int YY_BOL = 128;
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private final int YY_EOF = 129;
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private java.io.BufferedReader yy_reader;
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private int yy_buffer_index;
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private int yy_buffer_read;
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private int yy_buffer_start;
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private int yy_buffer_end;
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private char yy_buffer[];
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private boolean yy_at_bol;
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private int yy_lexical_state;
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TaschenrechnerLexer (java.io.Reader reader) {
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this ();
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if (null == reader) {
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throw (new Error("Error: Bad input stream initializer."));
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}
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yy_reader = new java.io.BufferedReader(reader);
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}
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TaschenrechnerLexer (java.io.InputStream instream) {
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this ();
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if (null == instream) {
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throw (new Error("Error: Bad input stream initializer."));
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}
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yy_reader = new java.io.BufferedReader(new java.io.InputStreamReader(instream));
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}
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private TaschenrechnerLexer () {
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yy_buffer = new char[YY_BUFFER_SIZE];
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yy_buffer_read = 0;
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yy_buffer_index = 0;
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yy_buffer_start = 0;
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yy_buffer_end = 0;
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yy_at_bol = true;
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yy_lexical_state = YYINITIAL;
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}
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private boolean yy_eof_done = false;
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private final int YYINITIAL = 0;
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private final int yy_state_dtrans[] = {
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0
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};
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private void yybegin (int state) {
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yy_lexical_state = state;
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}
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private int yy_advance ()
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throws java.io.IOException {
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int next_read;
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int i;
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int j;
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if (yy_buffer_index < yy_buffer_read) {
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return yy_buffer[yy_buffer_index++];
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}
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if (0 != yy_buffer_start) {
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i = yy_buffer_start;
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j = 0;
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while (i < yy_buffer_read) {
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yy_buffer[j] = yy_buffer[i];
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++i;
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++j;
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}
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yy_buffer_end = yy_buffer_end - yy_buffer_start;
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yy_buffer_start = 0;
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yy_buffer_read = j;
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yy_buffer_index = j;
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next_read = yy_reader.read(yy_buffer,
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yy_buffer_read,
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yy_buffer.length - yy_buffer_read);
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if (-1 == next_read) {
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return YY_EOF;
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}
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yy_buffer_read = yy_buffer_read + next_read;
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}
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while (yy_buffer_index >= yy_buffer_read) {
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if (yy_buffer_index >= yy_buffer.length) {
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yy_buffer = yy_double(yy_buffer);
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}
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next_read = yy_reader.read(yy_buffer,
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yy_buffer_read,
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yy_buffer.length - yy_buffer_read);
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if (-1 == next_read) {
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return YY_EOF;
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}
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yy_buffer_read = yy_buffer_read + next_read;
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}
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return yy_buffer[yy_buffer_index++];
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}
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private void yy_move_end () {
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if (yy_buffer_end > yy_buffer_start &&
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'\n' == yy_buffer[yy_buffer_end-1])
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yy_buffer_end--;
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if (yy_buffer_end > yy_buffer_start &&
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'\r' == yy_buffer[yy_buffer_end-1])
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yy_buffer_end--;
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}
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private boolean yy_last_was_cr=false;
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private void yy_mark_start () {
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yy_buffer_start = yy_buffer_index;
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}
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private void yy_mark_end () {
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yy_buffer_end = yy_buffer_index;
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}
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private void yy_to_mark () {
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yy_buffer_index = yy_buffer_end;
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yy_at_bol = (yy_buffer_end > yy_buffer_start) &&
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('\r' == yy_buffer[yy_buffer_end-1] ||
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'\n' == yy_buffer[yy_buffer_end-1] ||
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2028/*LS*/ == yy_buffer[yy_buffer_end-1] ||
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2029/*PS*/ == yy_buffer[yy_buffer_end-1]);
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}
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private java.lang.String yytext () {
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return (new java.lang.String(yy_buffer,
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yy_buffer_start,
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yy_buffer_end - yy_buffer_start));
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}
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private int yylength () {
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return yy_buffer_end - yy_buffer_start;
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}
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private char[] yy_double (char buf[]) {
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int i;
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char newbuf[];
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newbuf = new char[2*buf.length];
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for (i = 0; i < buf.length; ++i) {
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newbuf[i] = buf[i];
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}
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return newbuf;
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}
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private final int YY_E_INTERNAL = 0;
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private final int YY_E_MATCH = 1;
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private java.lang.String yy_error_string[] = {
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"Error: Internal error.\n",
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"Error: Unmatched input.\n"
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};
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private void yy_error (int code,boolean fatal) {
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java.lang.System.out.print(yy_error_string[code]);
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java.lang.System.out.flush();
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if (fatal) {
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throw new Error("Fatal Error.\n");
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}
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}
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private int[][] unpackFromString(int size1, int size2, String st) {
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int colonIndex = -1;
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String lengthString;
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int sequenceLength = 0;
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int sequenceInteger = 0;
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int commaIndex;
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String workString;
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int res[][] = new int[size1][size2];
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for (int i= 0; i < size1; i++) {
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for (int j= 0; j < size2; j++) {
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if (sequenceLength != 0) {
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res[i][j] = sequenceInteger;
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sequenceLength--;
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continue;
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}
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commaIndex = st.indexOf(',');
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workString = (commaIndex==-1) ? st :
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st.substring(0, commaIndex);
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st = st.substring(commaIndex+1);
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colonIndex = workString.indexOf(':');
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if (colonIndex == -1) {
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res[i][j]=Integer.parseInt(workString);
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continue;
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}
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lengthString =
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workString.substring(colonIndex+1);
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sequenceLength=Integer.parseInt(lengthString);
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workString=workString.substring(0,colonIndex);
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sequenceInteger=Integer.parseInt(workString);
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res[i][j] = sequenceInteger;
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sequenceLength--;
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}
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}
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return res;
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}
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private int yy_acpt[] = {
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/* 0 */ YY_NOT_ACCEPT,
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/* 1 */ YY_NO_ANCHOR,
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/* 2 */ YY_NO_ANCHOR,
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/* 3 */ YY_NO_ANCHOR,
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/* 4 */ YY_NO_ANCHOR,
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/* 5 */ YY_NO_ANCHOR,
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/* 6 */ YY_NO_ANCHOR,
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/* 7 */ YY_NO_ANCHOR,
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/* 8 */ YY_NO_ANCHOR,
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/* 9 */ YY_NO_ANCHOR,
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/* 10 */ YY_NO_ANCHOR,
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/* 11 */ YY_NO_ANCHOR,
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/* 12 */ YY_NOT_ACCEPT,
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/* 13 */ YY_NO_ANCHOR,
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/* 14 */ YY_NO_ANCHOR
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};
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private int yy_cmap[] = unpackFromString(1,130,
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"11:8,10:3,11:2,10,11:18,10,11:7,5,6,2,1,11,3,9,4,8:10,11:66,7,11:3,0:2")[0];
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private int yy_rmap[] = unpackFromString(1,15,
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"0,1,2,1,2,1:3,2,3,4,1,5,1,6")[0];
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private int yy_nxt[][] = unpackFromString(7,12,
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"1,2,3,4,5,6,7,8,9,13,10,13,-1:20,9,-1:8,11,-1:2,9,12,-1:12,10,-1:9,14,-1:8," +
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"11,-1:2,14,-1:3");
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public yyTokenclass yylex ()
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throws java.io.IOException {
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int yy_lookahead;
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int yy_anchor = YY_NO_ANCHOR;
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int yy_state = yy_state_dtrans[yy_lexical_state];
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int yy_next_state = YY_NO_STATE;
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int yy_last_accept_state = YY_NO_STATE;
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boolean yy_initial = true;
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int yy_this_accept;
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yy_mark_start();
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yy_this_accept = yy_acpt[yy_state];
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if (YY_NOT_ACCEPT != yy_this_accept) {
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yy_last_accept_state = yy_state;
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yy_mark_end();
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}
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while (true) {
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if (yy_initial && yy_at_bol) yy_lookahead = YY_BOL;
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else yy_lookahead = yy_advance();
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yy_next_state = YY_F;
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yy_next_state = yy_nxt[yy_rmap[yy_state]][yy_cmap[yy_lookahead]];
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if (YY_EOF == yy_lookahead && true == yy_initial) {
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System.out.println("ENd of file: gut gemacht");
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return new EOF();
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}
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if (YY_F != yy_next_state) {
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yy_state = yy_next_state;
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yy_initial = false;
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yy_this_accept = yy_acpt[yy_state];
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if (YY_NOT_ACCEPT != yy_this_accept) {
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yy_last_accept_state = yy_state;
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yy_mark_end();
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}
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}
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else {
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if (YY_NO_STATE == yy_last_accept_state) {
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throw (new Error("Lexical Error: Unmatched Input."));
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}
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else {
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yy_anchor = yy_acpt[yy_last_accept_state];
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if (0 != (YY_END & yy_anchor)) {
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yy_move_end();
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}
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yy_to_mark();
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switch (yy_last_accept_state) {
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case 1:
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case -2:
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break;
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case 2:
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{ return new PLUS(); }
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case -3:
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break;
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case 3:
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{ return new MAL(); }
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case -4:
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break;
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case 4:
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{ return new MINUS(); }
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case -5:
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break;
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case 5:
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{ return new GETEILT(); }
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case -6:
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break;
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case 6:
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{ return new KLAMMERAUF(); }
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case -7:
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break;
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case 7:
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{ return new KLAMMERZU(); }
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case -8:
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break;
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case 8:
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{System.out.print("Fehler");}
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case -9:
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break;
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case 9:
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{ return new ZAHL();}
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case -10:
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break;
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case 10:
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{ }
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case -11:
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break;
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case 11:
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{return new KLAMMERAUF();}
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case -12:
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break;
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case 13:
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{System.out.print("Fehler");}
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case -13:
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break;
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case 14:
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{ return new ZAHL();}
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case -14:
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break;
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default:
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yy_error(YY_E_INTERNAL,false);
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case -1:
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}
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yy_initial = true;
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yy_state = yy_state_dtrans[yy_lexical_state];
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yy_next_state = YY_NO_STATE;
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yy_last_accept_state = YY_NO_STATE;
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yy_mark_start();
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yy_this_accept = yy_acpt[yy_state];
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if (YY_NOT_ACCEPT != yy_this_accept) {
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yy_last_accept_state = yy_state;
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yy_mark_end();
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}
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}
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}
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}
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}
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}
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class TschenrechnerScanner extends TaschenrechnerLexer implements TschenrechnerParser.yyInput {
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public TschenrechnerScanner (java.io.Reader reader) {
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super (reader);
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}
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//public int token() is not longer necessary
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public yyTokenclass advance() throws java.io.IOException {
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yyTokenclass ret = yylex();
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return ret;
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}
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//public Object value () is not longer necessary
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}
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