X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/74d6c0fe17ad70e07f5eab01a74920d2bc98fcc2..3a2803df74bf43b384db752e87be94a1f64fa847:/data/lalr1.java
diff --git a/data/lalr1.java b/data/lalr1.java
index 1466b37e..c855a75f 100644
--- a/data/lalr1.java
+++ b/data/lalr1.java
@@ -23,7 +23,7 @@ m4_ifval(m4_defn([b4_symbol_destructors]),
[])
m4_divert_push(0)dnl
-@output(b4_parser_file_name@)
+@output(b4_parser_file_name@)@
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
[2007, 2008])
@@ -36,7 +36,13 @@ b4_percent_code_get([[imports]])
*
* @@author LALR (1) parser skeleton written by Paolo Bonzini.
*/
-]b4_public_if([public ])b4_abstract_if([abstract ])[class ]b4_parser_class_name[
+]b4_public_if([public ])dnl
+b4_abstract_if([abstract ])dnl
+b4_final_if([final ])dnl
+b4_strictfp_if([strictfp ])dnl
+[class ]b4_parser_class_name[]dnl
+b4_percent_define_get3([extends], [ extends ])dnl
+b4_percent_define_get3([implements], [ implements ])[
{
]b4_identification[
@@ -57,7 +63,7 @@ b4_locations_if([[
public ]b4_position_type[ end;
/**
- * Create a ]b4_location_type[ denoting an empty range located at
+ * 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) {
@@ -124,14 +130,13 @@ b4_token_enums(b4_tokens)
/**
* 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.
+ * ]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([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]])[
@@ -223,11 +228,11 @@ b4_lexer_if([[
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])[) {
+ b4_locations_if([, ]b4_location_type[ loc])[) {
height++;
- if (size == height)
+ if (size == height)
{
int[] newStateStack = new int[size * 2];
System.arraycopy (stateStack, 0, newStateStack, 0, height);
@@ -236,7 +241,7 @@ b4_lexer_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;
@@ -278,7 +283,7 @@ b4_lexer_if([[
public void print (java.io.PrintStream out)
{
out.print ("Stack now");
-
+
for (int i = 0; i < height; i++)
{
out.print (' ');
@@ -325,14 +330,14 @@ b4_lexer_if([[
return yyerrstatus_ == 0;
}
- private int yyaction (int yyn, YYStack yystack, int yylen)
+ 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. */
@@ -340,7 +345,7 @@ b4_lexer_if([[
yyval = yystack.valueAt (yylen - 1);
else
yyval = yystack.valueAt (0);
-
+
yy_reduce_print (yyn, yystack);
switch (yyn)
@@ -424,7 +429,7 @@ b4_lexer_if([[
* @@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_throws])[
+ public boolean parse () ]b4_maybe_throws([b4_list2([b4_lex_throws], [b4_throws])])[
{
/// Lookahead and lookahead in internal form.
int yychar = yyempty_;
@@ -477,11 +482,11 @@ m4_popdef([b4_at_dollar])])dnl
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 (yyn == yypact_ninf_)
@@ -489,7 +494,7 @@ m4_popdef([b4_at_dollar])])dnl
label = YYDEFAULT;
break;
}
-
+
/* Read a lookahead token. */
if (yychar == yyempty_)
{
@@ -497,10 +502,10 @@ m4_popdef([b4_at_dollar])])dnl
yychar = yylex ();]
b4_locations_if([[
yylloc = new ]b4_location_type[(yylexer.getStartPos (),
- yylexer.getEndPos ());]])
+ yylexer.getEndPos ());]])
yylval = yylexer.getLVal ();[
}
-
+
/* Convert token to internal form. */
if (yychar <= EOF)
{
@@ -511,15 +516,15 @@ m4_popdef([b4_at_dollar])])dnl
{
yytoken = yytranslate_ (yychar);
yy_symbol_print ("Next token is", yytoken,
- yylval]b4_locations_if([, yylloc])[);
+ 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)
{
@@ -531,27 +536,27 @@ m4_popdef([b4_at_dollar])])dnl
label = YYREDUCE;
}
}
-
+
else
{
/* Shift the lookahead token. */
yy_symbol_print ("Shifting", yytoken,
- yylval]b4_locations_if([, yylloc])[);
-
+ 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. |
`-----------------------------------------------------------*/
@@ -562,7 +567,7 @@ m4_popdef([b4_at_dollar])])dnl
else
label = YYREDUCE;
break;
-
+
/*-----------------------------.
| yyreduce -- Do a reduction. |
`-----------------------------*/
@@ -571,7 +576,7 @@ m4_popdef([b4_at_dollar])])dnl
label = yyaction (yyn, yystack, yylen);
yystate = yystack.stateAt (0);
break;
-
+
/*------------------------------------.
| yyerrlab -- here on detecting error |
`------------------------------------*/
@@ -582,13 +587,13 @@ m4_popdef([b4_at_dollar])])dnl
++yynerrs_;
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. */
@@ -598,17 +603,17 @@ m4_popdef([b4_at_dollar])])dnl
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. */
@@ -617,13 +622,13 @@ m4_popdef([b4_at_dollar])])dnl
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];
@@ -637,18 +642,18 @@ m4_popdef([b4_at_dollar])])dnl
break;
}
}
-
+
/* Pop the current state because it cannot handle the error token. */
if (yystack.height == 1)
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);
@@ -659,16 +664,16 @@ m4_popdef([b4_at_dollar])])dnl
/* 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;
@@ -837,7 +842,7 @@ m4_popdef([b4_at_dollar])])dnl
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_value(yynrhs, yyi + 1)b4_locations_if([,
b4_rhs_location(yynrhs, yyi + 1)])[);
}