X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/a3764451d3188132ed22f622ba0d35edd6e386cd..11aef5e95b890364474c49c7d4529de2bec3544e:/data/java.m4

diff --git a/data/java.m4 b/data/java.m4
index 13876941..2be2359b 100644
--- a/data/java.m4
+++ b/data/java.m4
@@ -2,7 +2,7 @@
 
 # Java language support for Bison
 
-# Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012 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
@@ -17,12 +17,24 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+m4_include(b4_pkgdatadir/[c-like.m4])
+
+
+# b4_list2(LIST1, LIST2)
+# ----------------------
+# Join two lists with a comma if necessary.
+m4_define([b4_list2],
+          [$1[]m4_ifval(m4_quote($1), [m4_ifval(m4_quote($2), [[, ]])])[]$2])
+
+
+# b4_percent_define_get3(DEF, PRE, POST, NOT)
+# -------------------------------------------
+# Expand to the value of DEF surrounded by PRE and POST if it's %define'ed,
+# otherwise NOT.
+m4_define([b4_percent_define_get3],
+          [m4_ifval(m4_quote(b4_percent_define_get([$1])),
+                [$2[]b4_percent_define_get([$1])[]$3], [$4])])
 
-# b4_comment(TEXT)
-# ----------------
-m4_define([b4_comment], [/* m4_bpatsubst([$1], [
-], [
-   ])  */])
 
 
 # b4_flag_value(BOOLEAN-FLAG)
@@ -44,6 +56,20 @@ m4_define([b4_abstract_if],
 [b4_percent_define_flag_if([abstract], [$1], [$2])])
 
 
+# b4_final_if(TRUE, FALSE)
+# ---------------------------
+b4_percent_define_default([[final]], [[false]])
+m4_define([b4_final_if],
+[b4_percent_define_flag_if([final], [$1], [$2])])
+
+
+# b4_strictfp_if(TRUE, FALSE)
+# ---------------------------
+b4_percent_define_default([[strictfp]], [[false]])
+m4_define([b4_strictfp_if],
+[b4_percent_define_flag_if([strictfp], [$1], [$2])])
+
+
 # b4_lexer_if(TRUE, FALSE)
 # ------------------------
 m4_define([b4_lexer_if],
@@ -53,10 +79,7 @@ m4_define([b4_lexer_if],
 # b4_identification
 # -----------------
 m4_define([b4_identification],
-[/** Always <tt>true</tt>, identifies Bison output.  */
-  public static final boolean bison = true;
-
-  /** Version number for the Bison executable that generated this parser.  */
+[  /** Version number for the Bison executable that generated this parser.  */
   public static final String bisonVersion = "b4_version";
 
   /** Name of the skeleton that generated this parser.  */
@@ -75,7 +98,7 @@ m4_define([b4_identification],
 m4_define([b4_int_type],
 [m4_if(b4_ints_in($@,   [-128],   [127]), [1], [byte],
        b4_ints_in($@, [-32768], [32767]), [1], [short],
-					       [int])])
+                                               [int])])
 
 # b4_int_type_for(NAME)
 # ---------------------
@@ -89,27 +112,45 @@ m4_define([b4_int_type_for],
 m4_define([b4_null], [null])
 
 
+# b4_typed_parser_table_define(TYPE, NAME, DATA, COMMENT)
+# -------------------------------------------------------
+m4_define([b4_typed_parser_table_define],
+[m4_ifval([$4], [b4_comment([$4])
+  ])dnl
+[private static final ]$1[ yy$2_[] = yy$2_init();
+  private static final ]$1[[] yy$2_init()
+  {
+    return new ]$1[[]
+    {
+  ]$3[
+    };
+  }]])
+
+
+# b4_integral_parser_table_define(NAME, DATA, COMMENT)
+#-----------------------------------------------------
+m4_define([b4_integral_parser_table_define],
+[b4_typed_parser_table_define([b4_int_type_for([$2])], [$1], [$2], [$3])])
+
+
 ## ------------------------- ##
 ## Assigning token numbers.  ##
 ## ------------------------- ##
 
-# b4_token_enum(TOKEN-NAME, TOKEN-NUMBER)
-# ---------------------------------------
+# b4_token_enum(TOKEN-NUM)
+# ------------------------
 # Output the definition of this token as an enum.
 m4_define([b4_token_enum],
-[  /** Token number, to be returned by the scanner.  */
-  public static final int $1 = $2;
-])
-
+[b4_token_format([    /** Token number, to be returned by the scanner.  */
+    static final int %s = %s;
+], [$1])])
 
-# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
-# -----------------------------------------------------
+# b4_token_enums
+# --------------
 # Output the definition of the tokens (if there are) as enums.
 m4_define([b4_token_enums],
-[m4_if([$@], [[]], [],
-[/* Tokens.  */
-m4_map([b4_token_enum], [$@])])
-])
+[b4_any_token_visible_if([/* Tokens.  */
+b4_symbol_foreach([b4_token_enum])])])
 
 # b4-case(ID, CODE)
 # -----------------
@@ -120,29 +161,41 @@ m4_define([b4_case], [  case $1:
   break;
     ])
 
+# b4_predicate_case(LABEL, CONDITIONS)
+# ------------------------------------
+m4_define([b4_predicate_case], [  case $1:
+     if (! ($2)) YYERROR;
+    break;
+    ])
+
 
 ## ---------------- ##
 ## Default values.  ##
 ## ---------------- ##
 
 m4_define([b4_yystype], [b4_percent_define_get([[stype]])])
-b4_percent_define_default([[stype]], [[Object]])])
+b4_percent_define_default([[stype]], [[Object]])
+
+# %name-prefix
+m4_define_default([b4_prefix], [[YY]])
 
-m4_define_default([[b4_prefix]], [[YY]])])
-b4_percent_define_default([[parser_class_name]], [b4_prefix[]Parser])])
+b4_percent_define_default([[parser_class_name]], [b4_prefix[]Parser])
 m4_define([b4_parser_class_name], [b4_percent_define_get([[parser_class_name]])])
 
-b4_percent_define_default([[lex_throws]], [[java.io.IOException]])])
+b4_percent_define_default([[lex_throws]], [[java.io.IOException]])
 m4_define([b4_lex_throws], [b4_percent_define_get([[lex_throws]])])
 
-b4_percent_define_default([[throws]], [b4_lex_throws])])
+b4_percent_define_default([[throws]], [])
 m4_define([b4_throws], [b4_percent_define_get([[throws]])])
 
-b4_percent_define_default([[location_type]], [Location])])
-m4_define([b4_location_type], [b4_percent_define_get([[location_type]])])
+b4_percent_define_default([[init_throws]], [])
+m4_define([b4_init_throws], [b4_percent_define_get([[init_throws]])])
 
-b4_percent_define_default([[position_type]], [Position])])
-m4_define([b4_position_type], [b4_percent_define_get([[position_type]])])
+b4_percent_define_default([[api.location.type]], [Location])
+m4_define([b4_location_type], [b4_percent_define_get([[api.location.type]])])
+
+b4_percent_define_default([[api.position.type]], [Position])
+m4_define([b4_position_type], [b4_percent_define_get([[api.position.type]])])
 
 
 ## ----------------- ##
@@ -188,24 +241,24 @@ m4_define([b4_rhs_location],
 # it to be single quoted.  Same for b4_parse_param.
 
 # TODO: should be in bison.m4
-m4_define_default([b4_lex_param], [[]]))
-m4_define([b4_lex_param], b4_lex_param))
-m4_define([b4_parse_param], b4_parse_param))
+m4_define_default([b4_lex_param], [[]])
+m4_define([b4_lex_param], b4_lex_param)
+m4_define([b4_parse_param], b4_parse_param)
 
 # b4_lex_param_decl
-# -------------------
+# -----------------
 # Extra formal arguments of the constructor.
 m4_define([b4_lex_param_decl],
 [m4_ifset([b4_lex_param],
           [b4_remove_comma([$1],
-			   b4_param_decls(b4_lex_param))],
-	  [$1])])
+                           b4_param_decls(b4_lex_param))],
+          [$1])])
 
 m4_define([b4_param_decls],
-	  [m4_map([b4_param_decl], [$@])])
+          [m4_map([b4_param_decl], [$@])])
 m4_define([b4_param_decl], [, $1])
 
-m4_define([b4_remove_comma], [m4_ifval($1, [$1, ], [])m4_shift2($@)])
+m4_define([b4_remove_comma], [m4_ifval(m4_quote($1), [$1, ], [])m4_shift2($@)])
 
 
 
@@ -215,21 +268,21 @@ m4_define([b4_remove_comma], [m4_ifval($1, [$1, ], [])m4_shift2($@)])
 m4_define([b4_parse_param_decl],
 [m4_ifset([b4_parse_param],
           [b4_remove_comma([$1],
-			   b4_param_decls(b4_parse_param))],
-	  [$1])])
+                           b4_param_decls(b4_parse_param))],
+          [$1])])
 
 
 
 # b4_lex_param_call
-# -------------------
+# -----------------
 # Delegating the lexer parameters to the lexer constructor.
 m4_define([b4_lex_param_call],
           [m4_ifset([b4_lex_param],
-	            [b4_remove_comma([$1],
-				     b4_param_calls(b4_lex_param))],
-	            [$1])])
+                    [b4_remove_comma([$1],
+                                     b4_param_calls(b4_lex_param))],
+                    [$1])])
 m4_define([b4_param_calls],
-	  [m4_map([b4_param_call], [$@])])
+          [m4_map([b4_param_call], [$@])])
 m4_define([b4_param_call], [, $2])
 
 
@@ -239,13 +292,13 @@ m4_define([b4_param_call], [, $2])
 # Extra initialisations of the constructor.
 m4_define([b4_parse_param_cons],
           [m4_ifset([b4_parse_param],
-		    [b4_constructor_calls(b4_parse_param)])])
+                    [b4_constructor_calls(b4_parse_param)])])
 
 m4_define([b4_constructor_calls],
-	  [m4_map([b4_constructor_call], [$@])])
+          [m4_map([b4_constructor_call], [$@])])
 m4_define([b4_constructor_call],
-	  [this.$2 = $2;
-	  ])
+          [this.$2 = $2;
+          ])
 
 
 
@@ -254,15 +307,15 @@ m4_define([b4_constructor_call],
 # Extra instance variables.
 m4_define([b4_parse_param_vars],
           [m4_ifset([b4_parse_param],
-		    [
+                    [
     /* User arguments.  */
 b4_var_decls(b4_parse_param)])])
 
 m4_define([b4_var_decls],
-	  [m4_map_sep([b4_var_decl], [
+          [m4_map_sep([b4_var_decl], [
 ], [$@])])
 m4_define([b4_var_decl],
-	  [    protected final $1;])
+          [    protected final $1;])
 
 
 
@@ -270,4 +323,4 @@ m4_define([b4_var_decl],
 # -----------------------
 # Expand to either an empty string or "throws THROWS".
 m4_define([b4_maybe_throws],
-	  [m4_ifval($1, [throws $1])])
+          [m4_ifval($1, [throws $1])])