]b4_position_type[ class, denote a point in the input.
+ * Locations represent a part of the input through the beginning
+ * and ending positions. */
+ public class ]b4_location_type[ {
+ /** The first, inclusive, position in the range. */
+ public ]b4_position_type[ begin;
+
+ /** The first position beyond the range. */
+ public ]b4_position_type[ end;
+
+ /**
+ * Create a ]b4_location_type[ denoting an empty range located at
+ * a given point.
+ * @@param loc The position at which the range is anchored. */
+ public ]b4_location_type[ (]b4_position_type[ loc) {
+ this.begin = this.end = loc;
+ }
+
+ /**
+ * Create a ]b4_location_type[ from the endpoints of the range.
+ * @@param begin The first position included in the range.
+ * @@param end The first position beyond the range. */
+ public ]b4_location_type[ (]b4_position_type[ begin, ]b4_position_type[ end) {
+ this.begin = begin;
+ this.end = end;
+ }
+
+ /**
+ * Print a representation of the location. For this to be correct,
+ * ]b4_position_type[ should override the equals
+ * method. */
+ public String toString () {
+ if (begin.equals (end))
+ return begin.toString ();
+ else
+ return begin.toString () + "-" + end.toString ();
+ }
+ }
+
+]])
+
+[ /** Token returned by the scanner to signal the end of its input. */
+ public static final int EOF = 0;]
+
+b4_token_enums(b4_tokens)
+
+ b4_locations_if([[
+ private ]b4_location_type[ yylloc (YYStack rhs, int n)
+ {
+ if (n > 0)
+ return new ]b4_location_type[ (rhs.locationAt (n-1).begin, rhs.locationAt (0).end);
+ else
+ return new ]b4_location_type[ (rhs.locationAt (0).end);
+ }]])[
+
+ /**
+ * Communication interface between the scanner and the Bison-generated
+ * parser ]b4_parser_class_name[.
+ */
+ public interface Lexer {
+ ]b4_locations_if([[/**
+ * Method to retrieve the beginning position of the last scanned token.
+ * @@return the position at which the last scanned token starts. */
+ ]b4_position_type[ getStartPos ();
+
+ /**
+ * Method to retrieve the ending position of the last scanned token.
+ * @@return the first position beyond the last scanned token. */
+ ]b4_position_type[ getEndPos ();]])[
+
+ /**
+ * Method to retrieve the semantic value of the last scanned token.
+ * @@return the semantic value of the last scanned token. */
+ ]b4_yystype[ getLVal ();
+
+ /**
+ * Entry point for the scanner. Returns the token identifier corresponding
+ * to the next token and prepares to return the semantic value
+ * ]b4_locations_if([and beginning/ending positions ])[of the token.
+ * @@return the token identifier corresponding to the next token. */
+ int yylex () ]b4_maybe_throws([b4_lex_throws])[;
+
+ /**
+ * Entry point for error reporting. Emits an error
+ * ]b4_locations_if([referring to the given location ])[in a user-defined way.
+ *
+ * ]b4_locations_if([[@@param loc The location of the element to which the
+ * error message is related]])[
+ * @@param s The string for the error message. */
+ void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String s);]
+ }
+
+ b4_lexer_if([[private class YYLexer implements Lexer {
+]b4_percent_code_get([[lexer]])[
+ }
+
+ ]])[/** The object doing lexical analysis for us. */
+ private Lexer yylexer;
+ ]
+ b4_parse_param_vars
+
+b4_lexer_if([[
+ /**
+ * Instantiates the Bison-generated parser.
+ */
+ public ]b4_parser_class_name (b4_parse_param_decl([b4_lex_param_decl])[) {
+ this.yylexer = new YYLexer(]b4_lex_param_call[);
+ ]b4_parse_param_cons[
+ }
+]])
+
+ /**
+ * Instantiates the Bison-generated parser.
+ * @@param yylexer The scanner that will supply tokens to the parser.
+ */
+ b4_lexer_if([[protected]], [[public]]) b4_parser_class_name[ (]b4_parse_param_decl([[Lexer yylexer]])[) {
+ this.yylexer = yylexer;
+ ]b4_parse_param_cons[
+ }
+
+ private java.io.PrintStream yyDebugStream = System.err;
+
+ /**
+ * Return the PrintStream on which the debugging output is
+ * printed.
+ */
+ public final java.io.PrintStream getDebugStream () { return yyDebugStream; }
+
+ /**
+ * Set the PrintStream on which the debug output is printed.
+ * @@param s The stream that is used for debugging output.
+ */
+ public final void setDebugStream(java.io.PrintStream s) { yyDebugStream = s; }
+
+ private int yydebug = 0;
+
+ /**
+ * Answer the verbosity of the debugging output; 0 means that all kinds of
+ * output from the parser are suppressed.
+ */
+ public final int getDebugLevel() { return yydebug; }
+
+ /**
+ * Set the verbosity of the debugging output; 0 means that all kinds of
+ * output from the parser are suppressed.
+ * @@param level The verbosity level for debugging output.
+ */
+ public final void setDebugLevel(int level) { yydebug = level; }
+
+ private final int yylex () ]b4_maybe_throws([b4_lex_throws]) [{
+ return yylexer.yylex ();
+ }
+ protected final void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String s) {
+ yylexer.yyerror (]b4_locations_if([loc, ])[s);
+ }
+
+ ]b4_locations_if([
+ protected final void yyerror (String s) {
+ yylexer.yyerror ((]b4_location_type[)null, s);
+ }
+ protected final void yyerror (]b4_position_type[ loc, String s) {
+ yylexer.yyerror (new ]b4_location_type[ (loc), s);
+ }])
+
+ [protected final void yycdebug (String s) {
+ if (yydebug > 0)
+ yyDebugStream.println (s);
+ }
+
+ private final class YYStack {
+ private int[] stateStack = new int[16];
+ ]b4_locations_if([[private ]b4_location_type[[] locStack = new ]b4_location_type[[16];]])[
+ private ]b4_yystype[[] valueStack = new ]b4_yystype[[16];
+
+ public int size = 16;
+ public int height = -1;
+
+ public final void push (int state, ]b4_yystype[ value]dnl
+ b4_locations_if([, ]b4_location_type[ loc])[) {
+ height++;
+ if (size == height)
+ {
+ int[] newStateStack = new int[size * 2];
+ System.arraycopy (stateStack, 0, newStateStack, 0, height);
+ stateStack = newStateStack;
+ ]b4_locations_if([[
+ ]b4_location_type[[] newLocStack = new ]b4_location_type[[size * 2];
+ System.arraycopy (locStack, 0, newLocStack, 0, height);
+ locStack = newLocStack;]])
+
+ b4_yystype[[] newValueStack = new ]b4_yystype[[size * 2];
+ System.arraycopy (valueStack, 0, newValueStack, 0, height);
+ valueStack = newValueStack;
+
+ size *= 2;
+ }
+
+ stateStack[height] = state;
+ ]b4_locations_if([[locStack[height] = loc;]])[
+ valueStack[height] = value;
+ }
+
+ public final void pop () {
+ pop (1);
+ }
+
+ public final void pop (int num) {
+ // Avoid memory leaks... garbage collection is a white lie!
+ if (num > 0) {
+ java.util.Arrays.fill (valueStack, height - num + 1, height + 1, null);
+ ]b4_locations_if([[java.util.Arrays.fill (locStack, height - num + 1, height + 1, null);]])[
+ }
+ height -= num;
+ }
+
+ public final int stateAt (int i) {
+ return stateStack[height - i];
+ }
+
+ ]b4_locations_if([[public final ]b4_location_type[ locationAt (int i) {
+ return locStack[height - i];
+ }
+
+ ]])[public final ]b4_yystype[ valueAt (int i) {
+ return valueStack[height - i];
+ }
+
+ // Print the state stack on the debug stream.
+ public void print (java.io.PrintStream out)
+ {
+ out.print ("Stack now");
+
+ for (int i = 0; i <= height; i++)
+ {
+ out.print (' ');
+ out.print (stateStack[i]);
+ }
+ out.println ();
+ }
+ }
+
+ /**
+ * Returned by a Bison action in order to stop the parsing process and
+ * return success (true). */
+ public static final int YYACCEPT = 0;
+
+ /**
+ * Returned by a Bison action in order to stop the parsing process and
+ * return failure (false). */
+ public static final int YYABORT = 1;
+
+ /**
+ * Returned by a Bison action in order to start error recovery without
+ * printing an error message. */
+ public static final int YYERROR = 2;
+
+ // Internal return codes that are not supported for user semantic
+ // actions.
+ private static final int YYERRLAB = 3;
+ private static final int YYNEWSTATE = 4;
+ private static final int YYDEFAULT = 5;
+ private static final int YYREDUCE = 6;
+ private static final int YYERRLAB1 = 7;
+ private static final int YYRETURN = 8;
+
+ private int yyerrstatus_ = 0;
+
+ /**
+ * Return whether error recovery is being done. In this state, the parser
+ * reads token until it reaches a known state, and then restarts normal
+ * operation. */
+ public final boolean recovering ()
+ {
+ return yyerrstatus_ == 0;
+ }
+
+ private int yyaction (int yyn, YYStack yystack, int yylen) ]b4_maybe_throws([b4_throws])[
+ {
+ ]b4_yystype[ yyval;
+ ]b4_locations_if([b4_location_type[ yyloc = yylloc (yystack, yylen);]])[
+
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'. Otherwise, use the top of the stack.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. */
+ if (yylen > 0)
+ yyval = yystack.valueAt (yylen - 1);
+ else
+ yyval = yystack.valueAt (0);
+
+ yy_reduce_print (yyn, yystack);
+
+ switch (yyn)
+ {
+ ]b4_user_actions[
+ default: break;
+ }
+
+ yy_symbol_print ("-> $$ =", yyr1_[yyn], yyval]b4_locations_if([, yyloc])[);
+
+ yystack.pop (yylen);
+ yylen = 0;
+
+ /* Shift the result of the reduction. */
+ yyn = yyr1_[yyn];
+ int yystate = yypgoto_[yyn - yyntokens_] + yystack.stateAt (0);
+ if (0 <= yystate && yystate <= yylast_
+ && yycheck_[yystate] == yystack.stateAt (0))
+ yystate = yytable_[yystate];
+ else
+ yystate = yydefgoto_[yyn - yyntokens_];
+
+ yystack.push (yystate, yyval]b4_locations_if([, yyloc])[);
+ return YYNEWSTATE;
+ }
+
+ /* Return YYSTR after stripping away unnecessary quotes and
+ backslashes, so that it's suitable for yyerror. The heuristic is
+ that double-quoting is unnecessary unless the string contains an
+ apostrophe, a comma, or backslash (other than backslash-backslash).
+ YYSTR is taken from yytname. */
+ private final String yytnamerr_ (String yystr)
+ {
+ if (yystr.charAt (0) == '"')
+ {
+ StringBuffer yyr = new StringBuffer ();
+ strip_quotes: for (int i = 1; i < yystr.length (); i++)
+ switch (yystr.charAt (i))
+ {
+ case '\'':
+ case ',':
+ break strip_quotes;
+
+ case '\\':
+ if (yystr.charAt(++i) != '\\')
+ break strip_quotes;
+ /* Fall through. */
+ default:
+ yyr.append (yystr.charAt (i));
+ break;
+
+ case '"':
+ return yyr.toString ();
+ }
+ }
+ else if (yystr.equals ("$end"))
+ return "end of input";
+
+ return yystr;
+ }
+
+ /*--------------------------------.
+ | Print this symbol on YYOUTPUT. |
+ `--------------------------------*/
+
+ private void yy_symbol_print (String s, int yytype,
+ ]b4_yystype[ yyvaluep]dnl
+ b4_locations_if([, Object yylocationp])[)
+ {
+ if (yydebug > 0)
+ yycdebug (s + (yytype < yyntokens_ ? " token " : " nterm ")
+ + yytname_[yytype] + " ("]b4_locations_if([
+ + yylocationp + ": "])[
+ + (yyvaluep == null ? "(null)" : yyvaluep.toString ()) + ")");
+ }
+
+ /**
+ * Parse input from the scanner that was specified at object construction
+ * time. Return whether the end of the input was reached successfully.
+ *
+ * @@return true if the parsing succeeds. Note that this does not
+ * imply that there were no syntax errors.
+ */
+ public boolean parse () ]b4_maybe_throws([b4_list2([b4_lex_throws], [b4_throws])])[
+ {
+ /// Lookahead and lookahead in internal form.
+ int yychar = yyempty_;
+ int yytoken = 0;
+
+ /* State. */
+ int yyn = 0;
+ int yylen = 0;
+ int yystate = 0;
+
+ YYStack yystack = new YYStack ();
+
+ /* Error handling. */
+ int yynerrs_ = 0;
+ ]b4_locations_if([/// The location where the error started.
+ ]b4_location_type[ yyerrloc = null;
+
+ /// ]b4_location_type[ of the lookahead.
+ ]b4_location_type[ yylloc = new ]b4_location_type[ (null, null);
+
+ /// @@$.
+ ]b4_location_type[ yyloc;])
+
+ /// Semantic value of the lookahead.
+ b4_yystype[ yylval = null;
+
+ yycdebug ("Starting parse\n");
+ yyerrstatus_ = 0;
+
+]m4_ifdef([b4_initial_action], [
+b4_dollar_pushdef([yylval], [], [yylloc])dnl
+/* User initialization code. */
+b4_user_initial_action
+b4_dollar_popdef])[]dnl
+
+ [ /* Initialize the stack. */
+ yystack.push (yystate, yylval]b4_locations_if([, yylloc])[);
+
+ int label = YYNEWSTATE;
+ for (;;)
+ switch (label)
+ {
+ /* New state. Unlike in the C/C++ skeletons, the state is already
+ pushed when we come here. */
+ case YYNEWSTATE:
+ yycdebug ("Entering state " + yystate + "\n");
+ if (yydebug > 0)
+ yystack.print (yyDebugStream);
+
+ /* Accept? */
+ if (yystate == yyfinal_)
+ return true;
+
+ /* Take a decision. First try without lookahead. */
+ yyn = yypact_[yystate];
+ if (yy_pact_value_is_default_ (yyn))
+ {
+ label = YYDEFAULT;
+ break;
+ }
+
+ /* Read a lookahead token. */
+ if (yychar == yyempty_)
+ {
+ yycdebug ("Reading a token: ");
+ yychar = yylex ();]
+ b4_locations_if([[
+ yylloc = new ]b4_location_type[(yylexer.getStartPos (),
+ yylexer.getEndPos ());]])
+ yylval = yylexer.getLVal ();[
+ }
+
+ /* Convert token to internal form. */
+ if (yychar <= EOF)
+ {
+ yychar = yytoken = EOF;
+ yycdebug ("Now at end of input.\n");
+ }
+ else
+ {
+ yytoken = yytranslate_ (yychar);
+ yy_symbol_print ("Next token is", yytoken,
+ yylval]b4_locations_if([, yylloc])[);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || yylast_ < yyn || yycheck_[yyn] != yytoken)
+ label = YYDEFAULT;
+
+ /* <= 0 means reduce or error. */
+ else if ((yyn = yytable_[yyn]) <= 0)
+ {
+ if (yy_table_value_is_error_ (yyn))
+ label = YYERRLAB;
+ else
+ {
+ yyn = -yyn;
+ label = YYREDUCE;
+ }
+ }
+
+ else
+ {
+ /* Shift the lookahead token. */
+ yy_symbol_print ("Shifting", yytoken,
+ yylval]b4_locations_if([, yylloc])[);
+
+ /* Discard the token being shifted. */
+ yychar = yyempty_;
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus_ > 0)
+ --yyerrstatus_;
+
+ yystate = yyn;
+ yystack.push (yystate, yylval]b4_locations_if([, yylloc])[);
+ label = YYNEWSTATE;
+ }
+ break;
+
+ /*-----------------------------------------------------------.
+ | yydefault -- do the default action for the current state. |
+ `-----------------------------------------------------------*/
+ case YYDEFAULT:
+ yyn = yydefact_[yystate];
+ if (yyn == 0)
+ label = YYERRLAB;
+ else
+ label = YYREDUCE;
+ break;
+
+ /*-----------------------------.
+ | yyreduce -- Do a reduction. |
+ `-----------------------------*/
+ case YYREDUCE:
+ yylen = yyr2_[yyn];
+ label = yyaction (yyn, yystack, yylen);
+ yystate = yystack.stateAt (0);
+ break;
+
+ /*------------------------------------.
+ | yyerrlab -- here on detecting error |
+ `------------------------------------*/
+ case YYERRLAB:
+ /* If not already recovering from an error, report this error. */
+ if (yyerrstatus_ == 0)
+ {
+ ++yynerrs_;
+ if (yychar == yyempty_)
+ yytoken = yyempty_;
+ yyerror (]b4_locations_if([yylloc, ])[yysyntax_error (yystate, yytoken));
+ }
+
+ ]b4_locations_if([yyerrloc = yylloc;])[
+ if (yyerrstatus_ == 3)
+ {
+ /* If just tried and failed to reuse lookahead token after an
+ error, discard it. */
+
+ if (yychar <= EOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == EOF)
+ return false;
+ }
+ else
+ yychar = yyempty_;
+ }
+
+ /* Else will try to reuse lookahead token after shifting the error
+ token. */
+ label = YYERRLAB1;
+ break;
+
+ /*---------------------------------------------------.
+ | errorlab -- error raised explicitly by YYERROR. |
+ `---------------------------------------------------*/
+ case YYERROR:
+
+ ]b4_locations_if([yyerrloc = yystack.locationAt (yylen - 1);])[
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ yystack.pop (yylen);
+ yylen = 0;
+ yystate = yystack.stateAt (0);
+ label = YYERRLAB1;
+ break;
+
+ /*-------------------------------------------------------------.
+ | yyerrlab1 -- common code for both syntax error and YYERROR. |
+ `-------------------------------------------------------------*/
+ case YYERRLAB1:
+ yyerrstatus_ = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact_[yystate];
+ if (!yy_pact_value_is_default_ (yyn))
+ {
+ yyn += yyterror_;
+ if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)
+ {
+ yyn = yytable_[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yystack.height == 0)
+ return false;
+
+ ]b4_locations_if([yyerrloc = yystack.locationAt (0);])[
+ yystack.pop ();
+ yystate = yystack.stateAt (0);
+ if (yydebug > 0)
+ yystack.print (yyDebugStream);
+ }
+
+ ]b4_locations_if([
+ /* Muck with the stack to setup for yylloc. */
+ yystack.push (0, null, yylloc);
+ yystack.push (0, null, yyerrloc);
+ yyloc = yylloc (yystack, 2);
+ yystack.pop (2);])[
+
+ /* Shift the error token. */
+ yy_symbol_print ("Shifting", yystos_[yyn],
+ yylval]b4_locations_if([, yyloc])[);
+
+ yystate = yyn;
+ yystack.push (yyn, yylval]b4_locations_if([, yyloc])[);
+ label = YYNEWSTATE;
+ break;
+
+ /* Accept. */
+ case YYACCEPT:
+ return true;
+
+ /* Abort. */
+ case YYABORT:
+ return false;
+ }
+ }
+
+ // Generate an error message.
+ private String yysyntax_error (int yystate, int tok)
+ {
+ if (errorVerbose)
+ {
+ /* There are many possibilities here to consider:
+ - Assume YYFAIL is not used. It's too flawed to consider.
+ See
+ yypact_ value indicates a defaulted state.
+ * @@param yyvalue the value to check
+ */
+ private static boolean yy_pact_value_is_default_ (int yyvalue)
+ {
+ return yyvalue == yypact_ninf_;
+ }
+
+ /**
+ * Whether the given yytable_ value indicates a syntax error.
+ * @@param yyvalue the value to check
+ */
+ private static boolean yy_table_value_is_error_ (int yyvalue)
+ {
+ return yyvalue == yytable_ninf_;
+ }
+
+ /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+ private static final ]b4_int_type_for([b4_pact])[ yypact_ninf_ = ]b4_pact_ninf[;
+ private static final ]b4_int_type_for([b4_pact])[ yypact_[] =
+ {
+ ]b4_pact[
+ };
+
+ /* YYDEFACT[S] -- default reduction number in state S. Performed when
+ YYTABLE doesn't specify something else to do. Zero means the
+ default is an error. */
+ private static final ]b4_int_type_for([b4_defact])[ yydefact_[] =
+ {
+ ]b4_defact[
+ };
+
+ /* YYPGOTO[NTERM-NUM]. */
+ private static final ]b4_int_type_for([b4_pgoto])[ yypgoto_[] =
+ {
+ ]b4_pgoto[
+ };
+
+ /* YYDEFGOTO[NTERM-NUM]. */
+ private static final ]b4_int_type_for([b4_defgoto])[
+ yydefgoto_[] =
+ {
+ ]b4_defgoto[
+ };
+
+ /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If YYTABLE_NINF_, syntax error. */
+ private static final ]b4_int_type_for([b4_table])[ yytable_ninf_ = ]b4_table_ninf[;
+ private static final ]b4_int_type_for([b4_table])[
+ yytable_[] =
+ {
+ ]b4_table[
+ };
+
+ /* YYCHECK. */
+ private static final ]b4_int_type_for([b4_check])[
+ yycheck_[] =
+ {
+ ]b4_check[
+ };
+
+ /* STOS_[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+ private static final ]b4_int_type_for([b4_stos])[
+ yystos_[] =
+ {
+ ]b4_stos[
+ };
+
+ /* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
+ to YYLEX-NUM. */
+ private static final ]b4_int_type_for([b4_toknum])[
+ yytoken_number_[] =
+ {
+ ]b4_toknum[
+ };
+
+ /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+ private static final ]b4_int_type_for([b4_r1])[
+ yyr1_[] =
+ {
+ ]b4_r1[
+ };
+
+ /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+ private static final ]b4_int_type_for([b4_r2])[
+ yyr2_[] =
+ {
+ ]b4_r2[
+ };
+
+ /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at \a yyntokens_, nonterminals. */
+ private static final String yytname_[] =
+ {
+ ]b4_tname[
+ };
+
+ /* YYRHS -- A `-1'-separated list of the rules' RHS. */
+ private static final ]b4_int_type_for([b4_rhs])[ yyrhs_[] =
+ {
+ ]b4_rhs[
+ };
+
+ /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+ private static final ]b4_int_type_for([b4_prhs])[ yyprhs_[] =
+ {
+ ]b4_prhs[
+ };
+
+ /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */
+ private static final ]b4_int_type_for([b4_rline])[ yyrline_[] =
+ {
+ ]b4_rline[
+ };
+
+ // Report on the debug stream that the rule yyrule is going to be reduced.
+ private void yy_reduce_print (int yyrule, YYStack yystack)
+ {
+ if (yydebug == 0)
+ return;
+
+ int yylno = yyrline_[yyrule];
+ int yynrhs = yyr2_[yyrule];
+ /* Print the symbols being reduced, and their result. */
+ yycdebug ("Reducing stack by rule " + (yyrule - 1)
+ + " (line " + yylno + "), ");
+
+ /* The symbols being reduced. */
+ for (int yyi = 0; yyi < yynrhs; yyi++)
+ yy_symbol_print (" $" + (yyi + 1) + " =",
+ yyrhs_[yyprhs_[yyrule] + yyi],
+ ]b4_rhs_value(yynrhs, yyi + 1)b4_locations_if([,
+ b4_rhs_location(yynrhs, yyi + 1)])[);
+ }
+
+ /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+ private static final ]b4_int_type_for([b4_translate])[ yytranslate_table_[] =
+ {
+ ]b4_translate[
+ };
+
+ private static final ]b4_int_type_for([b4_translate])[ yytranslate_ (int t)
+ {
+ if (t >= 0 && t <= yyuser_token_number_max_)
+ return yytranslate_table_[t];
+ else
+ return yyundef_token_;
+ }
+
+ private static final int yylast_ = ]b4_last[;
+ private static final int yynnts_ = ]b4_nterms_number[;
+ private static final int yyempty_ = -2;
+ private static final int yyfinal_ = ]b4_final_state_number[;
+ private static final int yyterror_ = 1;
+ private static final int yyerrcode_ = 256;
+ private static final int yyntokens_ = ]b4_tokens_number[;
+
+ private static final int yyuser_token_number_max_ = ]b4_user_token_number_max[;
+ private static final int yyundef_token_ = ]b4_undef_token_number[;
+
+]/* User implementation code. */
+b4_percent_code_get[]dnl
+
+}
+
+b4_epilogue
+b4_output_end()
diff --git a/tools/data/location.cc b/tools/data/location.cc
new file mode 100644
index 00000000..8e831241
--- /dev/null
+++ b/tools/data/location.cc
@@ -0,0 +1,299 @@
+# C++ skeleton for Bison
+
+# Copyright (C) 2002-2007, 2009-2012 Free Software Foundation, Inc.
+
+# 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 3 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see
+ input grammar:
+
+
+
+
+
+
+
+
+