return new ]b4_location_type[ (rhs.locationAt (0).end);
}]])
- b4_pure_if([[/**
+ /**
* Communication interface between the scanner and the Bison-generated
* parser <tt>]b4_parser_class_name[</tt>.
*/
/**
* Method to retrieve the semantic value of the last scanned token.
* @@return the semantic value of the last scanned token. */
- ]b4_union_name[ getLVal ();]], [[
-
- /**
- * A place where the scanner can store the beginning position of the
- * last scanned token. */
- ]b4_locations_if([b4_position_type[ yystartpos;]])[
-
- /**
- * A place where the scanner can store the ending position of the last
- * scanned token, i.e. the first position beyond the last scanned token. */
- ]b4_locations_if([b4_position_type[ yyendpos;]])[
+ ]b4_yystype[ getLVal ();]
/**
- * A place where the scanner can store the semantic value of the
- * last scanned token. */
- protected ]b4_union_name[ yylval;]])
-
- b4_single_class_if([], [[/**
* Entry point for the scanner. Returns the token identifier corresponding
* to the next token and ]b4_pure_if([prepares to return], [stores])[
* the semantic value]b4_locations_if([ and beginning/ending positions])[
* of the token.
* @@return the token identifier corresponding to the next token. */
- abstract int yylex (]b4_lex_param_decl) b4_maybe_throws([b4_lex_throws])[;
+ int yylex () ]b4_maybe_throws([b4_lex_throws])[;
/**
* Entry point for error reporting. Emits an error
* ]b4_locations_if([loc], [[The location of the element to which the
* error message is related]])[
* @@param s The string for the error message. */
- abstract void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String s);]])
- b4_pure_if([}
+ 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 yylex;])
- b4_parse_param_vars[
+ ]])[/** The object doing lexical analysis for us. */
+ private Lexer yylexer;
+ ]
+ b4_parse_param_vars
+b4_lexer_if([[
/**
- * Instantiates the Bison-generated parser. ]b4_pure_if([
- * @@param yylex The scanner that will supply tokens to the parser.])[
+ * Instantiates the Bison-generated parser.
*/
- public ]b4_parser_class_name[ (]b4_parse_param_decl([b4_pure_if([Lexer yylex])])[) {
- ]b4_pure_if(this.yylex = yylex;)
- b4_parse_param_cons[
+ 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 yylex 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;
*/
public final void setDebugLevel(int level) { yydebug = level; }
- ]b4_pure_if([[
- private final int yylex (]b4_lex_param_decl) b4_maybe_throws([b4_lex_throws]) [{
- return yylex.yylex (]b4_lex_param_call[);
+ 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) {
- yylex.yyerror (]b4_locations_if([loc, ])[s);
- }]])
- b4_locations_if([
+ yylexer.yyerror (]b4_locations_if([loc, ])[s);
+ }
+
+ ]b4_locations_if([
protected final void yyerror (String s) {
- yyerror ((Location)null, s);
+ yylexer.yyerror ((Location)null, s);
}
protected final void yyerror (]b4_position_type[ loc, String s) {
- yyerror (new ]b4_location_type[ (loc), s);
+ yylexer.yyerror (new ]b4_location_type[ (loc), s);
}])
[protected final void yycdebug (String 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_union_name[[] valueStack = new ]b4_union_name[[16];
+ private ]b4_yystype[[] valueStack = new ]b4_yystype[[16];
public int size = 16;
public int height = -1;
- public final void push (int state, ]b4_union_name[ value]dnl
+ public final void push (int state, ]b4_yystype[ value]dnl
b4_locations_if([, ]b4_location_type[ loc])[) {
height++;
if (size == height)
System.arraycopy (locStack, 0, newLocStack, 0, height);
locStack = newLocStack;]])
- b4_union_name[[] newValueStack = new ]b4_union_name[[size * 2];
+ b4_yystype[[] newValueStack = new ]b4_yystype[[size * 2];
System.arraycopy (valueStack, 0, newValueStack, 0, height);
valueStack = newValueStack;
return locStack[height - i];
}
- ]])[public final ]b4_union_name[ valueAt (int i) {
+ ]])[public final ]b4_yystype[ valueAt (int i) {
return valueStack[height - i];
}
private int yyaction (int yyn, YYStack yystack, int yylen)
{
- ]b4_union_name[ yyval;
+ ]b4_yystype[ yyval;
]b4_locations_if([b4_location_type[ yyloc = yylloc (yystack, yylen);]])[
/* If YYLEN is nonzero, implement the default value of the action:
`--------------------------------*/
private void yy_symbol_print (String s, int yytype,
- ]b4_union_name[ yyvaluep]dnl
+ ]b4_yystype[ yyvaluep]dnl
b4_locations_if([, Object yylocationp])[)
{
if (yydebug > 0)
]b4_location_type[ yyloc;])
/// Semantic value of the lookahead.
- b4_union_name[ yylval = null;
+ b4_yystype[ yylval = null;
int yyresult;
if (yychar == yyempty_)
{
yycdebug ("Reading a token: ");
- yychar = yylex (]b4_lex_param_call[);]
- b4_locations_if([
- b4_pure_if([yylloc = new ]b4_location_type[(yylex.getStartPos (),
- yylex.getEndPos ());],
- [yylloc = new ]b4_location_type[(this.yystartpos,
- this.yyendpos);]);])
- b4_pure_if([yylval = yylex.getLVal ()], [yylval = this.yylval]);[
+ yychar = yylex ();]
+ b4_locations_if([[
+ yylloc = new ]b4_location_type[(yylexer.getStartPos (),
+ yylexer.getEndPos ());]])
+ yylval = yylexer.getLVal ();[
}
/* Convert token to internal form. */
projects / bison.git / blobdiff