tests: dispatch per lang on the definition of yylex

* tests/local.at (AT_YYLEX_DEFINE): Dispatch on the language.
(AT_YYLEX_DEFINE(java)): New.
* tests/conflicts.at, tests/java.at: Use it.

tests/conflicts.at

@@ -437,26 +437,8 @@ AT_JAVA_IF([AT_DATA], [AT_DATA_GRAMMAR])([input.y],
 ]$2[
 
 ]AT_JAVA_IF([[%code lexer {
-
+  ]AT_YYLEX_DEFINE([$3], [[return new Integer(1)]])[
-  /*--------.
+  ]AT_YYERROR_DEFINE[
-  | yylex.  |
-  `--------*/
-
-  public String input = "]$3[";
-  public int index = 0;
-  public int yylex ()
-  {
-    if (index < input.length ())
-      return input.charAt (index++);
-    else
-      return 0;
-  }
-  public Object getLVal ()
-  {
-    return new Integer(1);
-  }
-
-]AT_YYERROR_DEFINE[
 };
 %%
 ]], [[

tests/java.at

@@ -154,14 +154,11 @@ AT_LOCATION_IF([[
     else
       return st.ttype;
   }
-
-
 ]AT_LEXPARAM_IF([[
 };
 %%]], [[
-}]])
+}]])[
 
-[
 class Position {
   public int line;
   public int token;
@@ -198,8 +195,8 @@ class Position {
     return token;
   }
 }
-
 ]])
+
 AT_BISON_OPTION_POPDEFS
 ])# _AT_DATA_JAVA_CALC_Y
 

tests/local.at

@@ -427,25 +427,10 @@ m4_define([AT_YYLEX_DECLARE],
 [static AT_YYLEX_DECLARE_EXTERN[]dnl
 ])
 
-m4_define([AT_YYLEX_DEFINE],
+
-[[#include <assert.h>
+# AT_YYLEX_DEFINE([INPUT], [ACTION])
-static
+m4_define([AT_YYLEX_DEFINE],  [AT_LANG_DISPATCH([$0], $@)])
-]AT_YYLEX_PROTOTYPE[
+
-{
-  ]m4_bmatch([$1], [^\(".*"\)?$],
-             [[static char const input[] = ]m4_default([$1], [""])],
-             [[static int const input[] = ]$1])[;
-  static size_t toknum = 0;
-  int res;
-  ]AT_USE_LEX_ARGS[
-  assert (toknum < sizeof input / sizeof input[0]);
-  res = input[toknum++];
-  ]$2[;]AT_TOKEN_CTOR_IF([], [[
-  ]AT_LOCATION_IF([[
-  ]AT_LOC_FIRST_LINE[ = ]AT_LOC_LAST_LINE[ = 1;
-  ]AT_LOC_FIRST_COLUMN[ = ]AT_LOC_LAST_COLUMN[ = ]AT_CXX_IF([(unsigned )], [(int)])[toknum;]])[
-  return res;]])[
-}]])
 
 # AT_YYERROR_FORMALS
 # AT_YYERROR_PROTOTYPE
@@ -537,6 +522,27 @@ AT_YYERROR_SEES_LOC_IF([[
 }]])
 
 
+m4_define([AT_YYLEX_DEFINE(c)],
+[[#include <assert.h>
+static
+]AT_YYLEX_PROTOTYPE[
+{
+  ]m4_bmatch([$1], [^\(".*"\)?$],
+             [[static char const input[] = ]m4_default([$1], [""])],
+             [[static int const input[] = ]$1])[;
+  static size_t toknum = 0;
+  int res;
+  ]AT_USE_LEX_ARGS[
+  assert (toknum < sizeof input / sizeof input[0]);
+  res = input[toknum++];
+  ]$2[;]AT_TOKEN_CTOR_IF([], [[
+  ]AT_LOCATION_IF([[
+  ]AT_LOC_FIRST_LINE[ = ]AT_LOC_LAST_LINE[ = 1;
+  ]AT_LOC_FIRST_COLUMN[ = ]AT_LOC_LAST_COLUMN[ = ]AT_CXX_IF([(unsigned )], [(int)])[toknum;]])[
+  return res;]])[
+}]])
+
+
 m4_define([AT_MAIN_DEFINE(c)],
 [[#include <stdlib.h> /* getenv. */
 #include <string.h> /* strcmp. */
@@ -573,6 +579,12 @@ void
 }]])
 
 
+# AT_YYERROR_DEFINE(c++)([INPUT], [ACTION])
+# -----------------------------------------
+# Same as in C.
+m4_copy([AT_YYLEX_DEFINE(c)], [AT_YYLEX_DEFINE(c++)])
+
+
 m4_define([AT_MAIN_DEFINE(c++)],
 [[#include <cstdlib> // getenv.
 #include <cstring> // strcmp.
@@ -626,7 +638,29 @@ m4_define([AT_YYERROR_DEFINE(java)],
   {
     System.err.println (s);
   }
-]])])
+]])
+])
+
+m4_define([AT_YYLEX_DEFINE(java)],
+[[
+  /*--------.
+  | yylex.  |
+  `--------*/
+
+  public String input = "]$1[";
+  public int index = 0;
+  public int yylex ()
+  {
+    if (index < input.length ())
+      return input.charAt (index++);
+    else
+      return 0;
+  }
+  public Object getLVal ()
+  {
+    ]$2[;
+  }
+]])
 
 m4_define([AT_MAIN_DEFINE(java)],
 [[class input