* data/yacc.c: (b4_lex_param): Corrected for the case where

[bison.git] / src / parse-gram.c

diff --git a/src/parse-gram.c b/src/parse-gram.c
index 7f37a5e04a50b19a2d36b26031f34a461fffcb58..c69b294c61118f0be6e08c57507c73f4caebe544 100644 (file)
--- a/src/parse-gram.c
+++ b/src/parse-gram.c
@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 1.875a.  */
+/* A Bison parser, made by GNU Bison 1.875b.  */
 
 /* Skeleton parser for Yacc-like parsing with Bison,
    Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
@@ -654,7 +654,14 @@ static const unsigned char yystos[] =
 
 #define YYACCEPT       goto yyacceptlab
 #define YYABORT                goto yyabortlab
-#define YYERROR                goto yyerrlab1
+#define YYERROR                do                              \
+                         {                             \
+                           yylerrsp = yylsp;           \
+                           *++yylerrsp = yyloc;        \
+                           goto yyerrlab1;             \
+                         }                             \
+                       while (0)
+
 
 /* Like YYERROR except do call yyerror.  This remains here temporarily
    to ease the transition to the new meaning of YYERROR, for GCC.
@@ -776,9 +783,9 @@ yy_reduce_print (yyrule)
 #endif
 {
   int yyi;
-  unsigned int yylineno = yyrline[yyrule];
+  unsigned int yylno = yyrline[yyrule];
   YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ",
-             yyrule - 1, yylineno);
+             yyrule - 1, yylno);
   /* Print the symbols being reduced, and their result.  */
   for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++)
     YYFPRINTF (stderr, "%s ", yytname [yyrhs[yyi]]);
@@ -1610,8 +1617,8 @@ yyreduce:
 
     }
 
-/* Line 991 of yacc.c.  */
-#line 1615 "parse-gram.c"
+/* Line 999 of yacc.c.  */
+#line 1622 "parse-gram.c"
 \f
   yyvsp -= yylen;
   yyssp -= yylen;
@@ -1652,18 +1659,33 @@ yyerrlab:
        {
          YYSIZE_T yysize = 0;
          int yytype = YYTRANSLATE (yychar);
+         const char* yyprefix;
          char *yymsg;
-         int yyx, yycount;
+         int yyx;
 
-         yycount = 0;
          /* Start YYX at -YYN if negative to avoid negative indexes in
             YYCHECK.  */
-         for (yyx = yyn < 0 ? -yyn : 0;
-              yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++)
+         int yyxbegin = yyn < 0 ? -yyn : 0;
+
+         /* Stay within bounds of both yycheck and yytname.  */
+         int yychecklim = YYLAST - yyn;
+         int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+         int yycount = 0;
+
+         yyprefix = ", expecting ";
+         for (yyx = yyxbegin; yyx < yyxend; ++yyx)
            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
-             yysize += yystrlen (yytname[yyx]) + 15, yycount++;
-         yysize += yystrlen ("syntax error, unexpected ") + 1;
-         yysize += yystrlen (yytname[yytype]);
+             {
+               yysize += yystrlen (yyprefix) + yystrlen (yytname [yyx]);
+               yycount += 1;
+               if (yycount == 5)
+                 {
+                   yysize = 0;
+                   break;
+                 }
+             }
+         yysize += (sizeof ("syntax error, unexpected ")
+                    + yystrlen (yytname[yytype]));
          yymsg = (char *) YYSTACK_ALLOC (yysize);
          if (yymsg != 0)
            {
@@ -1672,16 +1694,13 @@ yyerrlab:
 
              if (yycount < 5)
                {
-                 yycount = 0;
-                 for (yyx = yyn < 0 ? -yyn : 0;
-                      yyx < (int) (sizeof (yytname) / sizeof (char *));
-                      yyx++)
+                 yyprefix = ", expecting ";
+                 for (yyx = yyxbegin; yyx < yyxend; ++yyx)
                    if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
                      {
-                       const char *yyq = ! yycount ? ", expecting " : " or ";
-                       yyp = yystpcpy (yyp, yyq);
+                       yyp = yystpcpy (yyp, yyprefix);
                        yyp = yystpcpy (yyp, yytname[yyx]);
-                       yycount++;
+                       yyprefix = " or ";
                      }
                }
              yyerror (yymsg);
@@ -1725,33 +1744,13 @@ yyerrlab:
 
   /* Else will try to reuse lookahead token after shifting the error
      token.  */
-  goto yyerrlab2;
+  goto yyerrlab1;
 
 
 /*----------------------------------------------------.
 | yyerrlab1 -- error raised explicitly by an action.  |
 `----------------------------------------------------*/
 yyerrlab1:
-
-  /* Suppress GCC warning that yyerrlab1 is unused when no action
-     invokes YYERROR.  MacOS 10.2.3's buggy "smart preprocessor"
-     insists on the trailing semicolon.  */
-#if defined (__GNUC_MINOR__) && 2093 <= (__GNUC__ * 1000 + __GNUC_MINOR__)
-  /* GNU C++ (as of version 3.2.1) does not allow attributes on labels.  */
-# ifndef __cplusplus
-  __attribute__ ((__unused__));
-# endif
-#endif
-
-  yylerrsp = yylsp;
-  *++yylerrsp = yyloc;
-  goto yyerrlab2;
-
-
-/*---------------------------------------------------------------.
-| yyerrlab2 -- pop states until the error token can be shifted.  |
-`---------------------------------------------------------------*/
-yyerrlab2:
   yyerrstatus = 3;     /* Each real token shifted decrements this.  */
 
   for (;;)