(yyreportParseError): Don't assume that sprintf

yields the length of the printed string, as this is not true
on SunOS 4.1.4.  Reported by Peter Klein.

diff --git a/data/glr.c b/data/glr.c
index 23139d110a833ba4396863d4ab90198eb061d3a4..cf556dbbd0899de17f558d014f06525efec623a6 100644 (file)
--- a/data/glr.c
+++ b/data/glr.c
@@ -1552,15 +1552,17 @@ yyreportParseError (yyGLRStack* yystack, YYSTYPE* yylvalp, YYLTYPE* yyllocp)
              yysize += strlen (yytokenName (yyx)) + strlen (yyprefix),
                yycount += 1, yyprefix = " or ";
          yymsg = yyp = (char*) malloc (yysize);
              yysize += strlen (yytokenName (yyx)) + strlen (yyprefix),
                yycount += 1, yyprefix = " or ";
          yymsg = yyp = (char*) malloc (yysize);

-         yyp += sprintf (yyp, "parse error, unexpected %s",
-                         yytokenName (*yytokenp));
+         sprintf (yyp, "parse error, unexpected %s",
+                  yytokenName (*yytokenp));
+         yyp += strlen (yyp);

          if (yycount < 5)
            {
              yyprefix = ", expecting ";
              for (yyx = yyn < 0 ? -yyn : 0; yyx < yytname_size; yyx += 1)
                if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
                  {
          if (yycount < 5)
            {
              yyprefix = ", expecting ";
              for (yyx = yyn < 0 ? -yyn : 0; yyx < yytname_size; yyx += 1)
                if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
                  {

-                   yyp += sprintf (yyp, "%s%s", yyprefix, yytokenName (yyx));
+                   sprintf (yyp, "%s%s", yyprefix, yytokenName (yyx));
+                   yyp += strlen (yyp);

                    yyprefix = " or ";
                  }
            }
                    yyprefix = " or ";
                  }
            }