X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/0049ec8628e5a320d055a0cea8676a58cec60986..56d60c19479822159e56960616cb3602e31f2a2c:/tests/java.at

diff --git a/tests/java.at b/tests/java.at
index b3316492..b9e9deee 100644
--- a/tests/java.at
+++ b/tests/java.at
@@ -1,21 +1,19 @@
 # Java tests for simple calculator.           -*- Autotest -*-
 
-# Copyright (C) 2007 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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 2, or (at your option)
-# any later version.
-
+# 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, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 AT_BANNER([[Java Calculator.]])
 
@@ -25,7 +23,7 @@ AT_BANNER([[Java Calculator.]])
 # ------------------------- #
 
 
-# _AT_DATA_JAVA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES], [BISON-EPILOGUE])
+# _AT_DATA_JAVA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES])
 # ----------------------------------------------------------------------
 # Produce `calc.y'.  Don't call this macro directly, because it contains
 # some occurrences of `$1' etc. which will be interpreted by m4.  So
@@ -37,11 +35,12 @@ m4_define([_AT_DATA_JAVA_CALC_Y],
 AT_DATA([Calc.y],
 [[/* Infix notation calculator--calc */
 %language "Java"
-%name-prefix "Calc"]
+%name-prefix "Calc"
 %define parser_class_name "Calc"
 %define public
 
-$4[
+]$4[
+
 %code imports {
   import java.io.StreamTokenizer;
   import java.io.InputStream;
@@ -78,7 +77,7 @@ exp:
 | exp '=' exp
   {
     if ($1.intValue () != $3.intValue ())
-      yyerror ("calc: error: " + $1 + " != " + $3);
+      yyerror (]AT_LOCATION_IF([[@$,]])[ "calc: error: " + $1 + " != " + $3);
   }
 | exp '+' exp        { $$ = new Integer ($1.intValue () + $3.intValue ());  }
 | exp '-' exp        { $$ = new Integer ($1.intValue () - $3.intValue ());  }
@@ -93,71 +92,134 @@ exp:
 | '!'                { $$ = new Integer (0); return YYERROR;                }
 | '-' error          { $$ = new Integer (0); return YYERROR;                }
 ;
+
+]AT_LEXPARAM_IF([[
+%code lexer {
+]],
+[[
 %%
+class CalcLexer implements Calc.Lexer {
+]])[
+  StreamTokenizer st;
 
-  class Position {
-    public int line;
-
-    public Position ()
-    {
-      line = 0;
-    }
-
-    public Position (int l)
-    {
-      line = l;
-    }
-
-    public long getHashCode ()
-    {
-      return line;
-    }
-
-    public boolean equals (Position l)
-    {
-      return l.line == line;
-    }
-
-    public String toString ()
-    {
-      return Integer.toString (line);
-    }
-
-    public int lineno ()
-    {
-      return line;
-    }
+  public ]AT_LEXPARAM_IF([[YYLexer]], [[CalcLexer]]) (InputStream is)
+  {
+    st = new StreamTokenizer (new InputStreamReader (is));
+    st.resetSyntax ();
+    st.eolIsSignificant (true);
+    st.whitespaceChars (9, 9);
+    st.whitespaceChars (32, 32);
+    st.wordChars (48, 57);
   }
 
-]$5
-])
-])# _AT_DATA_JAVA_CALC_Y
+AT_LOCATION_IF([[
+  Position yypos = new Position (1, 0);
 
+  public Position getStartPos() {
+    return yypos;
+  }
 
-# AT_DATA_CALC_Y([BISON-OPTIONS], [BISON-EPILOGUE])
-# -------------------------------------------------
-# Produce `calc.y'.
-m4_define([AT_DATA_JAVA_CALC_Y],
-[_AT_DATA_JAVA_CALC_Y($[1], $[2], $[3], [$1], [$2])
-])
+  public Position getEndPos() {
+    return yypos;
+  }
 
+  public void yyerror (Calc.Location l, String s)
+  {
+    if (l == null)
+      System.err.println (s);
+    else
+      System.err.println (l + ": " + s);
+  }
+]], [[
+  public void yyerror (String s)
+  {
+    System.err.println (s);
+  }
+]])[
 
+  Integer yylval;
+
+  public Object getLVal() {
+    return yylval;
+  }
+
+  public int yylex () throws IOException {
+    int ttype = st.nextToken ();
+    ]AT_LOCATION_IF([[yypos = new Position (yypos.lineno (),
+                                            yypos.token () + 1);]])[
+    if (ttype == st.TT_EOF)
+      return Calc.EOF;
+
+    else if (ttype == st.TT_EOL)
+      {
+        ]AT_LOCATION_IF([[yypos = new Position (yypos.lineno () + 1, 0);]])[
+        return (int) '\n';
+      }
+
+    else if (ttype == st.TT_WORD)
+      {
+        yylval = new Integer (st.sval);
+        return Calc.NUM;
+      }
 
-# AT_JAVA_COMPILE(SOURCE)
-# -----------------------
-# Compile SOURCES into Java class files.  Skip the test if java or javac is
-# not installed.
-m4_define([AT_JAVA_COMPILE],
-[AT_CHECK([test -n "$CONF_JAVA" || exit 77
-test -n "$CONF_JAVAC" || exit 77])
-AT_CHECK([$SHELL ../../../javacomp.sh $1],
-         0, [ignore], [ignore])])
+    else
+      return st.ttype;
+  }
 
 
-# AT_JAVA_PARSER_CHECK(COMMAND, EXIT-STATUS, EXPOUT, EXPERR, [PRE])
-# -----------------------------------------------------------------
-m4_define([AT_JAVA_PARSER_CHECK],
-[AT_CHECK([$5 $SHELL ../../../javaexec.sh $1], [$2], [$3], [$4])])
+]AT_LEXPARAM_IF([[
+};
+%%]], [[
+}]])
+
+[
+class Position {
+  public int line;
+  public int token;
+
+  public Position ()
+  {
+    line = 0;
+    token = 0;
+  }
+
+  public Position (int l, int t)
+  {
+    line = l;
+    token = t;
+  }
+
+  public boolean equals (Position l)
+  {
+    return l.line == line && l.token == token;
+  }
+
+  public String toString ()
+  {
+    return Integer.toString (line) + "." + Integer.toString(token);
+  }
+
+  public int lineno ()
+  {
+    return line;
+  }
+
+  public int token ()
+  {
+    return token;
+  }
+}
+
+]])
+])# _AT_DATA_JAVA_CALC_Y
+
+
+# AT_DATA_CALC_Y([BISON-OPTIONS])
+# -------------------------------------------------
+# Produce `calc.y'.
+m4_define([AT_DATA_JAVA_CALC_Y],
+[_AT_DATA_JAVA_CALC_Y($[1], $[2], $[3], [$1])
+])
 
 
 # _AT_CHECK_JAVA_CALC_ERROR(BISON-OPTIONS, INPUT,
@@ -196,7 +258,7 @@ mv at-expout expout]])
 AT_CHECK([cat stderr], 0, [expout])
 ])
 
-# _AT_CHECK_JAVA_CALC([BISON-DIRECTIVES], [BISON-CODE], [BISON-EPILOGUE])
+# _AT_CHECK_JAVA_CALC([BISON-DIRECTIVES], [BISON-CODE])
 # -----------------------------------------------------------------------
 # Start a testing chunk which compiles `calc' grammar with
 # BISON-DIRECTIVES, and performs several tests over the parser.
@@ -209,9 +271,9 @@ AT_BISON_OPTION_PUSHDEFS([$1])
 AT_DATA_JAVA_CALC_Y([$1
 %code {
 $2
-}], [$3])
+}])
 
-AT_CHECK([bison -o Calc.java Calc.y])
+AT_BISON_CHECK([-o Calc.java Calc.y])
 AT_JAVA_COMPILE([Calc.java])
 
 # Test the priorities.
@@ -235,19 +297,19 @@ AT_JAVA_PARSER_CHECK([Calc < input], 0, [], [stderr])
 
 # Some syntax errors.
 _AT_CHECK_JAVA_CALC_ERROR([$1], [0 0],
-                          [1: syntax error, unexpected number])
+                          [1.2: syntax error, unexpected number])
 _AT_CHECK_JAVA_CALC_ERROR([$1], [1//2],
-                          [1: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
+                          [1.3: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
 _AT_CHECK_JAVA_CALC_ERROR([$1], [error],
-                          [1: syntax error, unexpected $undefined])
+                          [1.1: syntax error, unexpected $undefined])
 _AT_CHECK_JAVA_CALC_ERROR([$1], [1 = 2 = 3],
-                          [1: syntax error, unexpected '='])
+                          [1.4: syntax error, unexpected '='])
 _AT_CHECK_JAVA_CALC_ERROR([$1], [
 +1],
-                          [2: syntax error, unexpected '+'])
+                          [2.1: syntax error, unexpected '+'])
 # Exercise error messages with EOF: work on an empty file.
 _AT_CHECK_JAVA_CALC_ERROR([$1], [/dev/null],
-                          [1: syntax error, unexpected end of input])
+                          [1.1: syntax error, unexpected end of input])
 
 # Exercise the error token: without it, we die at the first error,
 # hence be sure to
@@ -265,37 +327,39 @@ _AT_CHECK_JAVA_CALC_ERROR([$1], [/dev/null],
 #   first error is ")", which is needed to recover from the error and
 #   produce the "0" that triggers the "0 != 1" error.
 #
-_AT_CHECK_JAVA_CALC_ERROR([$1], 
+_AT_CHECK_JAVA_CALC_ERROR([$1],
                           [() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1],
-[1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
-calc: error: 4444 != 1])
+[1.2: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.14: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.24: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.1-1.27: calc: error: 4444 != 1])
 
 # The same, but this time exercising explicitly triggered syntax errors.
 # POSIX says the lookahead causing the error should not be discarded.
 _AT_CHECK_JAVA_CALC_ERROR([$1], [(!) + (0 0) = 1],
-[1: syntax error, unexpected number
-calc: error: 2222 != 1])
+[1.7: syntax error, unexpected number
+1.1-1.10: calc: error: 2222 != 1])
 _AT_CHECK_JAVA_CALC_ERROR([$1], [(- *) + (0 0) = 1],
-[1: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected number
-calc: error: 2222 != 1])
+[1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.8: syntax error, unexpected number
+1.1-1.11: calc: error: 2222 != 1])
 AT_BISON_OPTION_POPDEFS
 
 AT_CLEANUP
 ])# _AT_CHECK_JAVA_CALC
 
 
-# AT_CHECK_JAVA_CALC([BISON-DIRECTIVES], [BISON-EPILOGUE])
+# AT_CHECK_JAVA_CALC([BISON-DIRECTIVES])
 # --------------------------------------------------------
 # Start a testing chunk which compiles `calc' grammar with
 # BISON-DIRECTIVES, and performs several tests over the parser.
 # Run the test with and without %error-verbose.
 m4_define([AT_CHECK_JAVA_CALC],
-[_AT_CHECK_JAVA_CALC([$1], [$2], [$3])
-_AT_CHECK_JAVA_CALC([%error-verbose $1], [$2], [$3])
+[_AT_CHECK_JAVA_CALC([$1], [$2])
+_AT_CHECK_JAVA_CALC([%error-verbose $1], [$2])
+_AT_CHECK_JAVA_CALC([%locations $1], [$2])
+_AT_CHECK_JAVA_CALC([%error-verbose %locations $1], [$2])
 ])# AT_CHECK_JAVA_CALC
 
 
@@ -303,113 +367,451 @@ _AT_CHECK_JAVA_CALC([%error-verbose $1], [$2], [$3])
 # Simple LALR Calculator.  #
 # ------------------------ #
 
-dnl AT_CHECK_JAVA_CALC([], [])
-
-AT_CHECK_JAVA_CALC([%define single_class %locations], [[
-  StreamTokenizer st;
-
-  public Calc (InputStream is)
+AT_CHECK_JAVA_CALC([], [[
+  public static void main (String args[]) throws IOException
   {
-    Reader r = new InputStreamReader (is);
-    st = new StreamTokenizer(r);
-    st.resetSyntax ();
-    st.eolIsSignificant (true);
-    st.whitespaceChars (9, 9);
-    st.whitespaceChars (32, 32);
-    st.wordChars (48, 57);
+    CalcLexer l = new CalcLexer (System.in);
+    Calc p = new Calc (l);
+    p.parse ();
+  }
+]])
 
-    yyendpos = new Position (1);
+AT_CHECK_JAVA_CALC([%lex-param { InputStream is } ], [[
+  public static void main (String args[]) throws IOException
+  {
+    new Calc (System.in).parse ();
   }
+]])
 
-  public int yylex () throws IOException {
-    int ttype = st.nextToken ();
-    yystartpos = yyendpos;
-    if (ttype == st.TT_EOF)
-      return EOF;
 
-    else if (ttype == st.TT_EOL)
-      {
-        yyendpos = new Position (yyendpos.lineno () + 1);
-        return (int) '\n';
-      }
 
-    else if (ttype == st.TT_WORD)
-      {
-        yylval = new Integer (st.sval);
-        return NUM;
-      }
+# -----------------#
+# Java Directives. #
+# -----------------#
 
-    else
-      return st.ttype;
+AT_BANNER([Java Parameters.])
+
+
+# AT_CHECK_JAVA_MINIMAL([DIRECTIVES], [PARSER_ACTION], [POSITION_CLASS])
+# ----------------------------------------------------------------------
+# Check that a mininal parser with DIRECTIVES compiles in Java.
+# Put the Java code in YYParser.java.
+m4_define([AT_CHECK_JAVA_MINIMAL],
+[
+AT_DATA([[YYParser.y]], [
+%language "Java"
+%locations
+%debug
+%error-verbose
+%token-table
+$1
+%%
+start: "end" {$2};
+%%
+class m4_default([$3], [Position]) {}
+])
+AT_BISON_CHECK([[YYParser.y]])
+AT_CHECK([[grep '[mb]4_' YYParser.y]], [1], [ignore])
+AT_JAVA_COMPILE([[YYParser.java]])
+])
+
+
+# AT_CHECK_JAVA_MINIMAL_W_LEXER([1:DIRECTIVES], [2:LEX_THROWS],
+#       [3:YYLEX_ACTION], [4:LEXER_BODY], [5:PARSER_ACTION], [6:STYPE],
+#       [7:POSITION_TYPE], [8:LOCATION_TYPE])
+# ---------------------------------------------------------------------
+# Check that a mininal parser with DIRECTIVES and a "%code lexer".
+# YYLEX is the body of yylex () which throws LEX_THROW.
+# compiles in Java.
+m4_define([AT_CHECK_JAVA_MINIMAL_W_LEXER],
+[AT_CHECK_JAVA_MINIMAL([$1
+
+%code lexer
+{
+  m4_default([$6], [Object]) yylval;
+  public m4_default([$6], [Object]) getLVal() { return yylval; }
+
+  public m4_default([$7], [Position]) getStartPos() { return null; }
+  public m4_default([$7], [Position]) getEndPos()   { return null; }
+
+  public void yyerror (m4_default([$8], [Location]) loc, String s)
+  {
+    System.err.println (loc + ": " + s);
   }
 
-  public void yyerror (Location l, String s)
+  public int yylex ()$2
   {
-    if (l == null)
-      System.err.println (s);
-    else
-      System.err.println (l.begin + ": " + s);
+    $3
   }
 
-  public static void main (String args[]) throws IOException
+  $4
+}], [$5], [$7])])
+
+
+# AT_CHECK_JAVA_GREP([LINE], [COUNT=1])
+# -------------------------------------
+# Check that YYParser.java contains exactly COUNT lines matching ^LINE$
+# with grep.
+m4_define([AT_CHECK_JAVA_GREP],
+	[AT_CHECK([grep -c '^$1$' YYParser.java], [], [m4_default([$2], [1])
+])
+])
+
+
+# ----------------------------------- #
+# Java parser class and package names #
+# ----------------------------------- #
+
+AT_SETUP([Java parser class and package names])
+
+AT_CHECK_JAVA_MINIMAL([])
+AT_CHECK_JAVA_GREP([[class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[%name-prefix "Prefix"]])
+AT_CHECK_JAVA_GREP([[class PrefixParser]])
+
+AT_CHECK_JAVA_MINIMAL([[%define parser_class_name "ParserClassName"]])
+AT_CHECK_JAVA_GREP([[class ParserClassName]])
+
+AT_CHECK_JAVA_MINIMAL([[%define package "user_java_package"]])
+AT_CHECK_JAVA_GREP([[package user_java_package;]])
+
+AT_CLEANUP
+
+
+# --------------------------- #
+# Java parser class modifiers #
+# --------------------------- #
+
+AT_SETUP([Java parser class modifiers])
+
+AT_CHECK_JAVA_MINIMAL([[%define abstract]])
+AT_CHECK_JAVA_GREP([[abstract class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[%define final]])
+AT_CHECK_JAVA_GREP([[final class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[%define strictfp]])
+AT_CHECK_JAVA_GREP([[strictfp class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define abstract
+%define strictfp]])
+AT_CHECK_JAVA_GREP([[abstract strictfp class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define final
+%define strictfp]])
+AT_CHECK_JAVA_GREP([[final strictfp class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[%define public]])
+AT_CHECK_JAVA_GREP([[public class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define public
+%define abstract]])
+AT_CHECK_JAVA_GREP([[public abstract class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define public
+%define final]])
+AT_CHECK_JAVA_GREP([[public final class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define public
+%define strictfp]])
+AT_CHECK_JAVA_GREP([[public strictfp class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define public
+%define abstract
+%define strictfp]])
+AT_CHECK_JAVA_GREP([[public abstract strictfp class YYParser]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define public
+%define final
+%define strictfp]])
+AT_CHECK_JAVA_GREP([[public final strictfp class YYParser]])
+
+AT_CLEANUP
+
+
+# ---------------------------------------- #
+# Java parser class extends and implements #
+# ---------------------------------------- #
+
+AT_SETUP([Java parser class extends and implements])
+
+AT_CHECK_JAVA_MINIMAL([[%define extends "Thread"]])
+AT_CHECK_JAVA_GREP([[class YYParser extends Thread]])
+
+AT_CHECK_JAVA_MINIMAL([[%define implements "Cloneable"]])
+AT_CHECK_JAVA_GREP([[class YYParser implements Cloneable]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define extends "Thread"
+%define implements "Cloneable"]])
+AT_CHECK_JAVA_GREP([[class YYParser extends Thread implements Cloneable]])
+
+AT_CLEANUP
+
+
+# -------------------------------- #
+# Java %parse-param and %lex-param #
+# -------------------------------- #
+
+AT_SETUP([Java %parse-param and %lex-param])
+
+AT_CHECK_JAVA_MINIMAL([])
+AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer) {]])
+
+AT_CHECK_JAVA_MINIMAL([[%parse-param {int parse_param1}]])
+AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
+AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer, *int parse_param1) {]])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param1 = parse_param1;]])
+
+AT_CHECK_JAVA_MINIMAL([[
+%parse-param {int parse_param1}
+%parse-param {long parse_param2}]])
+AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
+AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
+AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param1 = parse_param1;]])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param2 = parse_param2;]])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([], [], [[return EOF;]])
+AT_CHECK_JAVA_GREP([[ *public YYParser () {]])
+AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer) {]])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([[%parse-param {int parse_param1}]],
+	[], [[return EOF;]])
+AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
+AT_CHECK_JAVA_GREP([[ *public YYParser (int parse_param1) {]])
+AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1) {]])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param1 = parse_param1;]], [2])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([[
+%parse-param {int parse_param1}
+%parse-param {long parse_param2}]],
+	[], [[return EOF;]])
+AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
+AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
+AT_CHECK_JAVA_GREP([[ *public YYParser (int parse_param1, *long parse_param2) {]])
+AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param1 = parse_param1;]], [2])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param2 = parse_param2;]], [2])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([[%lex-param {char lex_param1}]],
+	[], [[return EOF;]], [[YYLexer (char lex_param1) {}]])
+AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1) {]])
+AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1);]])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([[
+%lex-param {char lex_param1}
+%lex-param {short lex_param2}]],
+	[], [[return EOF;]], [[YYLexer (char lex_param1, short lex_param2) {}]])
+AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1, *short lex_param2) {]])
+AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1, *lex_param2);]])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([[
+%parse-param {int parse_param1}
+%parse-param {long parse_param2}
+%lex-param {char lex_param1}
+%lex-param {short lex_param2}]],
+	[], [[return EOF;]], [[YYLexer (char lex_param1, short lex_param2) {}]])
+AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
+AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
+AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1, *short lex_param2, *int parse_param1, *long parse_param2) {]])
+AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1, *lex_param2);]])
+AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param1 = parse_param1;]], [2])
+AT_CHECK_JAVA_GREP([[[	 ]*this.parse_param2 = parse_param2;]], [2])
+
+AT_CLEANUP
+
+
+# ------------------------- #
+# Java throw specifications #
+# ------------------------- #
+
+AT_SETUP([Java throws specifications])
+
+# %define throws	- 0 1 2
+# %define lex-throws	- 0 1 2
+# %code lexer		  0 1
+
+m4_define([AT_JT_lex_throws_define], [m4_case(AT_JT_lex_throws,
+	-1, [],
+	 0, [[%define lex_throws ""]],
+	 1, [[%define lex_throws "InterruptedException"]],
+	 2, [[%define lex_throws "InterruptedException, IllegalAccessException"]])])
+
+m4_define([AT_JT_yylex_throws], [m4_case(AT_JT_lex_throws,
+	-1, [[ throws java.io.IOException]],
+	 0, [],
+	 1, [[ throws InterruptedException]],
+	 2, [[ throws InterruptedException, IllegalAccessException]])])
+
+m4_define([AT_JT_yylex_action], [m4_case(AT_JT_lex_throws,
+	-1, [[throw new java.io.IOException();]],
+	 0, [[return EOF;]],
+	 1, [[throw new InterruptedException();]],
+	 2, [[throw new IllegalAccessException();]])])
+
+
+m4_define([AT_JT_throws_define], [m4_case(AT_JT_throws,
+	-1, [],
+	 0, [[%define throws ""]],
+	 1, [[%define throws "ClassNotFoundException"]],
+	 2, [[%define throws "ClassNotFoundException, InstantiationException"]])])
+
+m4_define([AT_JT_yyaction_throws], [m4_case(AT_JT_throws,
+	-1, [],
+	 0, [],
+	 1, [[ throws ClassNotFoundException]],
+	 2, [[ throws ClassNotFoundException, InstantiationException]])])
+
+m4_define([AT_JT_parse_throws_2], [m4_case(AT_JT_throws,
+	-1, [],
+	 0, [],
+	 1, [[, ClassNotFoundException]],
+	 2, [[, ClassNotFoundException, InstantiationException]])])
+
+m4_define([AT_JT_parse_throws],
+	[m4_if(m4_quote(AT_JT_yylex_throws), [],
+		[AT_JT_yyaction_throws],
+		[AT_JT_yylex_throws[]AT_JT_parse_throws_2])])
+
+m4_define([AT_JT_initial_action], [m4_case(AT_JT_throws,
+	-1, [],
+	 0, [],
+	 1, [[%initial-action {if (true) throw new ClassNotFoundException();}]],
+	 2, [[%initial-action {if (true) throw new InstantiationException();}]])])
+
+m4_define([AT_JT_parse_action], [m4_case(AT_JT_throws,
+	-1, [],
+	 0, [],
+	 1, [[throw new ClassNotFoundException();]],
+	 2, [[throw new ClassNotFoundException();]])])
+
+m4_for([AT_JT_lexer], 0, 1, 1,
+  [m4_for([AT_JT_lex_throws], -1, 2, 1,
+    [m4_for([AT_JT_throws], -1, 2, 1,
+      [m4_if(AT_JT_lexer, 0,
+	[AT_CHECK_JAVA_MINIMAL([
+AT_JT_throws_define
+AT_JT_lex_throws_define
+AT_JT_initial_action],
+[AT_JT_parse_action])],
+	[AT_CHECK_JAVA_MINIMAL_W_LEXER([
+AT_JT_throws_define
+AT_JT_lex_throws_define
+AT_JT_initial_action],
+[AT_JT_yylex_throws],
+[AT_JT_yylex_action],
+[],
+[AT_JT_parse_action])])
+AT_CHECK_JAVA_GREP([[ *int yylex ()]AT_JT_yylex_throws *[;]])
+AT_CHECK_JAVA_GREP([[ *private int yyaction ([^)]*)]AT_JT_yyaction_throws[ *]])
+AT_CHECK_JAVA_GREP([[ *public boolean parse ()]AT_JT_parse_throws[ *]])
+])])])
+
+AT_CLEANUP
+
+
+# --------------------------------------------- #
+# Java stype, position_class and location_class #
+# --------------------------------------------- #
+
+AT_SETUP([Java stype, position_class and location_class])
+
+AT_CHECK_JAVA_MINIMAL([[
+%define stype "java.awt.Color"
+%type<java.awt.Color> start;
+%define location_type "MyLoc"
+%define position_type "MyPos"
+%code { class MyPos {} }]], [[$$ = $<java.awt.Color>1;]], [[MyPos]])
+AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
+AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Position']], [1], [ignore])
+AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Location']], [1], [ignore])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([[
+%define stype "java.awt.Color"
+%type<java.awt.Color> start;
+%define location_type "MyLoc"
+%define position_type "MyPos"
+%code { class MyPos {} }]], [], [[return EOF;]], [],
+[[$$ = $<java.awt.Color>1;]],
+[[java.awt.Color]], [[MyPos]], [[MyLoc]])
+AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
+AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Position']], [1], [ignore])
+AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Location']], [1], [ignore])
+
+AT_CLEANUP
+
+
+# ----------------------------------------------- #
+# Java syntax error handling without error token. #
+# ----------------------------------------------- #
+
+AT_SETUP([Java syntax error handling without error token])
+
+AT_DATA([[YYParser.y]], [[%language "Java"
+
+%lex-param { String s }
+
+%code imports {
+  import java.io.IOException;
+}
+
+%code lexer {
+  String Input;
+  int Position;
+
+  public YYLexer (String s)
   {
-    new Calc (System.in).parse ();
+    Input    = s;
+    Position = 0;
   }
-]])
 
-AT_CHECK_JAVA_CALC([%pure-parser], [[
-  public static void main (String args[]) throws IOException
+  public void yyerror (String s)
   {
-    CalcLexer l = new CalcLexer (System.in);
-    Calc p = new Calc (l);
-    p.parse ();
+    System.err.println (s);
   }
-]], [[
-class CalcLexer implements Calc.Lexer {
-  Integer yylval;
 
-  StreamTokenizer st;
-  
   public Object getLVal ()
   {
-    return yylval;
+    return null;
   }
-  
-  public CalcLexer (InputStream is)
+
+  public int yylex () throws IOException
   {
-    Reader r = new InputStreamReader (is);
-    st = new StreamTokenizer(r);
-    st.resetSyntax ();
-    st.eolIsSignificant (true);
-    st.whitespaceChars (9, 9);
-    st.whitespaceChars (32, 32);
-    st.wordChars (48, 57);
-  }
-  
-  public int yylex () throws IOException {
-    int ttype = st.nextToken ();
-    if (ttype == st.TT_EOF)
-      return Calc.EOF;
-        
-    else if (ttype == st.TT_EOL)
-      return (int) '\n';
-        
-    else if (ttype == st.TT_WORD)
-      {
-        yylval = new Integer (st.sval);
-        return Calc.NUM;
-      }
-        
+    if (Position >= Input.length ())
+      return EOF;
     else
-      return st.ttype;
+      return Input.charAt (Position++);
   }
+}
 
-  
-  public void yyerror (String s)
+%code {
+  public static void main (String args []) throws IOException
   {
-    System.err.println (s); 
+    YYParser p = new YYParser (args [0]);
+    p.parse ();
   }
 }
+%%
+input:
+  'a' 'a'
+;
+]])
+AT_BISON_CHECK([[YYParser.y]])
+AT_JAVA_COMPILE([[YYParser.java]])
+AT_JAVA_PARSER_CHECK([[YYParser aa]], [[0]], [[]], [[]])
+AT_JAVA_PARSER_CHECK([[YYParser ab]], [[0]], [[]], [[syntax error
+]])
+AT_JAVA_PARSER_CHECK([[YYParser ba]], [[0]], [[]], [[syntax error
 ]])
 
-dnl AT_CHECK_JAVA_CALC([%pure-parser %locations], [])
+AT_CLEANUP